iteration on ws implementation

Reviewed-on: mstoeck3/dnsrecon#3

.env.example

@@ -25,10 +25,10 @@ DEFAULT_RECURSION_DEPTH=2
 # Default timeout for provider API requests in seconds.
 DEFAULT_TIMEOUT=30
 # The number of concurrent provider requests to make.
-MAX_CONCURRENT_REQUESTS=5
+MAX_CONCURRENT_REQUESTS=1
 # The number of results from a provider that triggers the "large entity" grouping.
 LARGE_ENTITY_THRESHOLD=100
 # The number of times to retry a target if a provider fails.
 MAX_RETRIES_PER_TARGET=8
 # How long cached provider responses are stored (in hours).
-CACHE_EXPIRY_HOURS=12
+CACHE_TIMEOUT_HOURS=12

README.md

@@ -1,14 +1,16 @@
 # DNSRecon - Passive Infrastructure Reconnaissance Tool
 
-DNSRecon is an interactive, passive reconnaissance tool designed to map adversary infrastructure. It operates on a "free-by-default" model, ensuring core functionality without subscriptions, while allowing power users to enhance its capabilities with paid API keys.
+DNSRecon is an interactive, passive reconnaissance tool designed to map adversary infrastructure. It operates on a "free-by-default" model, ensuring core functionality without subscriptions, while allowing power users to enhance its capabilities with paid API keys. It is aimed at cybersecurity researchers, pentesters, and administrators who want to understand the public footprint of a target domain.
 
-**Current Status: Phase 2 Implementation**
+**Repo Link:** [https://git.cc24.dev/mstoeck3/dnsrecon](https://git.cc24.dev/mstoeck3/dnsrecon)
 
-  * ✅ Core infrastructure and graph engine
-  * ✅ Multi-provider support (crt.sh, DNS, Shodan)
-  * ✅ Session-based multi-user support
-  * ✅ Real-time web interface with interactive visualization
-  * ✅ Forensic logging system and JSON export
+-----
+
+## Concept and Philosophy
+
+The core philosophy of DNSRecon is to provide a comprehensive and accurate map of a target's infrastructure using only **passive data sources** by default. This means that, out of the box, DNSRecon will not send any traffic to the target's servers. Instead, it queries public and historical data sources to build a picture of the target's online presence. This approach is ideal for researchers and pentesters who want to gather intelligence without alerting the target, and for administrators who want to see what information about their own infrastructure is publicly available.
+
+For power users who require more in-depth information, DNSRecon can be configured to use API keys for services like Shodan, which provides a wealth of information about internet-connected devices. However, this is an optional feature, and the core functionality of the tool will always remain free and passive.
 
 -----
 
@@ -20,21 +22,45 @@ DNSRecon is an interactive, passive reconnaissance tool designed to map adversar
   * **Forensic Logging**: A complete audit trail of all reconnaissance activities is maintained.
   * **Confidence Scoring**: Relationships are weighted based on the reliability of the data source.
   * **Session Management**: Supports concurrent user sessions with isolated scanner instances.
+  * **Extensible Provider Architecture**: Easily add new data sources to expand the tool's capabilities.
+  * **Web-Based UI**: An intuitive and interactive web interface for managing scans and visualizing results.
 
 -----
 
-## Installation
+## Technical Architecture
+
+DNSRecon is a web-based application built with a modern technology stack:
+
+  * **Backend**: The backend is a **Flask** application that provides a REST API for the frontend and manages the scanning process.
+  * **Scanning Engine**: The core scanning engine is a multi-threaded Python application that uses a provider-based architecture to query different data sources.
+  * **Session Management**: **Redis** is used for session management, allowing for concurrent user sessions with isolated scanner instances.
+  * **Data Storage**: The application uses an in-memory graph to store and analyze the relationships between different pieces of information. The graph is built using the **NetworkX** library.
+  * **Frontend**: The frontend is a single-page application that uses JavaScript to interact with the backend API and visualize the graph.
+
+-----
+
+## Data Sources
+
+DNSRecon queries the following data sources:
+
+  * **DNS**: Standard DNS lookups (A, AAAA, CNAME, MX, NS, SOA, TXT).
+  * **crt.sh**: A certificate transparency log that provides information about SSL/TLS certificates.
+  * **Shodan**: A search engine for internet-connected devices (requires an API key).
+
+-----
+
+## Installation and Setup
 
 ### Prerequisites
 
   * Python 3.8 or higher
   * A modern web browser with JavaScript enabled
-  * (Recommended) A Linux host for running the application and the optional DNS cache.
+  * A Linux host for running the application
 
 ### 1\. Clone the Project
 
 ```bash
-git clone https://github.com/your-repo/dnsrecon.git
+git clone https://git.cc24.dev/mstoeck3/dnsrecon
 cd dnsrecon
 ```
 
@@ -50,20 +76,18 @@ pip install -r requirements.txt
 
 The `requirements.txt` file contains the following dependencies:
 
-  * Flask\>=2.3.3
-  * networkx\>=3.1
-  * requests\>=2.31.0
-  * python-dateutil\>=2.8.2
-  * Werkzeug\>=2.3.7
-  * urllib3\>=2.0.0
-  * dnspython\>=2.4.2
+  * Flask
+  * networkx
+  * requests
+  * python-dateutil
+  * Werkzeug
+  * urllib3
+  * dnspython
   * gunicorn
   * redis
   * python-dotenv
 
------
-
-## Configuration
+### 3\. Configure the Application
 
 DNSRecon is configured using a `.env` file. You can copy the provided example file and edit it to suit your needs:
 
@@ -91,6 +115,22 @@ The following environment variables are available for configuration:
 
 -----
 
+## Running the Application
+
+For development, you can run the application using the following command:
+
+```bash
+python app.py
+```
+
+For production, it is recommended to use a more robust server, such as Gunicorn:
+
+```bash
+gunicorn --workers 4 --bind 0.0.0.0:5000 app:app
+```
+
+-----
+
 ## Systemd Service
 
 To run DNSRecon as a service that starts automatically on boot, you can use `systemd`.
@@ -145,6 +185,65 @@ sudo systemctl status dnsrecon.service
 
 -----
 
+## Updating the Application
+
+To update the application, you should first pull the latest changes from the git repository. Then, you will need to wipe the Redis database and the local cache to ensure that you are using the latest data.
+
+### 1\. Update the Code
+
+```bash
+git pull
+```
+
+### 2\. Wipe the Redis Database
+
+```bash
+redis-cli FLUSHALL
+```
+
+### 3\. Wipe the Local Cache
+
+```bash
+rm -rf cache/*
+```
+
+### 4\. Restart the Service
+
+```bash
+sudo systemctl restart dnsrecon.service
+```
+
+-----
+
+## Extensibility
+
+DNSRecon is designed to be extensible, and adding new providers is a straightforward process. To add a new provider, you will need to create a new Python file in the `providers` directory that inherits from the `BaseProvider` class. The new provider will need to implement the following methods:
+
+  * `get_name()`: Return the name of the provider.
+  * `get_display_name()`: Return a display-friendly name for the provider.
+  * `requires_api_key()`: Return `True` if the provider requires an API key.
+  * `get_eligibility()`: Return a dictionary indicating whether the provider can query domains and/or IPs.
+  * `is_available()`: Return `True` if the provider is available (e.g., if an API key is configured).
+  * `query_domain(domain)`: Query the provider for information about a domain.
+  * `query_ip(ip)`: Query the provider for information about an IP address.
+
+-----
+
+## Unique Capabilities and Limitations
+
+### Unique Capabilities
+
+  * **Graph-Based Analysis**: The use of a graph-based data model allows for a more intuitive and powerful analysis of the relationships between different pieces of information.
+  * **Real-Time Visualization**: The real-time visualization of the graph provides immediate feedback and allows for a more interactive and engaging analysis experience.
+  * **Session Management**: The session management feature allows multiple users to use the application concurrently without interfering with each other's work.
+
+### Limitations
+
+  * **Passive-Only by Default**: While the passive-only approach is a key feature of the tool, it also means that the information it can gather is limited to what is publicly available.
+  * **No Active Scanning**: The tool does not perform any active scanning, such as port scanning or vulnerability scanning.
+
+-----
+
 ## License
 
 This project is licensed under the terms of the **BSD-3-Clause** license.

app.py

@@ -3,53 +3,60 @@
 """
 Flask application entry point for DNSRecon web interface.
 Provides REST API endpoints and serves the web interface with user session support.
+FIXED: Enhanced WebSocket integration with proper connection management.
 """
 
-import json
 import traceback
 from flask import Flask, render_template, request, jsonify, send_file, session
 from datetime import datetime, timezone, timedelta
 import io
+import os
 
 from core.session_manager import session_manager
+from flask_socketio import SocketIO
 from config import config
 from core.graph_manager import NodeType
 from utils.helpers import is_valid_target
+from utils.export_manager import export_manager
+from decimal import Decimal
 
 
 app = Flask(__name__)
-# Use centralized configuration for Flask settings
+socketio = SocketIO(app, cors_allowed_origins="*")
 app.config['SECRET_KEY'] = config.flask_secret_key
 app.config['PERMANENT_SESSION_LIFETIME'] = timedelta(hours=config.flask_permanent_session_lifetime_hours)
 
 def get_user_scanner():
     """
-    Retrieves the scanner for the current session, or creates a new
-    session and scanner if one doesn't exist.
+    FIXED: Retrieves the scanner for the current session with proper socketio management.
     """
-    # Get current Flask session info for debugging
     current_flask_session_id = session.get('dnsrecon_session_id')
     
-    # Try to get existing session
     if current_flask_session_id:
         existing_scanner = session_manager.get_session(current_flask_session_id)
         if existing_scanner:
+            # FIXED: Ensure socketio is properly maintained
+            existing_scanner.socketio = socketio
+            print(f"✓ Retrieved existing scanner for session {current_flask_session_id[:8]}... with socketio restored")
             return current_flask_session_id, existing_scanner
     
-    # Create new session if none exists
-    print("Creating new session as none was found...")
-    new_session_id = session_manager.create_session()
+    # FIXED: Register socketio connection when creating new session
+    new_session_id = session_manager.create_session(socketio)
     new_scanner = session_manager.get_session(new_session_id)
     
     if not new_scanner:
         raise Exception("Failed to create new scanner session")
     
-    # Store in Flask session
+    # FIXED: Ensure new scanner has socketio reference and register the connection
+    new_scanner.socketio = socketio
+    session_manager.register_socketio_connection(new_session_id, socketio)
     session['dnsrecon_session_id'] = new_session_id
     session.permanent = True
     
+    print(f"✓ Created new scanner for session {new_session_id[:8]}... with socketio registered")
     return new_session_id, new_scanner
 
+
 @app.route('/')
 def index():
     """Serve the main web interface."""
@@ -59,11 +66,8 @@ def index():
 @app.route('/api/scan/start', methods=['POST'])
 def start_scan():
     """
-    Start a new reconnaissance scan. Creates a new isolated scanner if
-    clear_graph is true, otherwise adds to the existing one.
+    FIXED: Starts a new reconnaissance scan with proper socketio management.
     """
-    print("=== API: /api/scan/start called ===")
-    
     try:
         data = request.get_json()
         if not data or 'target' not in data:
@@ -72,47 +76,36 @@ def start_scan():
         target = data['target'].strip()
         max_depth = data.get('max_depth', config.default_recursion_depth)
         clear_graph = data.get('clear_graph', True)
-        force_rescan_target = data.get('force_rescan_target', None) # **FIX**: Get the new parameter
+        force_rescan_target = data.get('force_rescan_target', None)
         
-        print(f"Parsed - target: '{target}', max_depth: {max_depth}, clear_graph: {clear_graph}, force_rescan: {force_rescan_target}")
-        
-        # Validation
         if not target:
             return jsonify({'success': False, 'error': 'Target cannot be empty'}), 400
         if not is_valid_target(target):
-            return jsonify({'success': False, 'error': 'Invalid target format. Please enter a valid domain or IP address.'}), 400
+            return jsonify({'success': False, 'error': 'Invalid target format.'}), 400
         if not isinstance(max_depth, int) or not 1 <= max_depth <= 5:
             return jsonify({'success': False, 'error': 'Max depth must be an integer between 1 and 5'}), 400
         
-        user_session_id, scanner = None, None
-
-        if clear_graph:
-            print("Clear graph requested: Creating a new, isolated scanner session.")
-            old_session_id = session.get('dnsrecon_session_id')
-            if old_session_id:
-                session_manager.terminate_session(old_session_id)
-            
-            user_session_id = session_manager.create_session()
-            session['dnsrecon_session_id'] = user_session_id
-            session.permanent = True
-            scanner = session_manager.get_session(user_session_id)
-        else:
-            print("Adding to existing graph: Reusing the current scanner session.")
         user_session_id, scanner = get_user_scanner()
         
         if not scanner:
-            return jsonify({'success': False, 'error': 'Failed to get or create a scanner instance.'}), 500
+            return jsonify({'success': False, 'error': 'Failed to get scanner instance.'}), 500
         
-        print(f"Using scanner {id(scanner)} in session {user_session_id}")
+        # FIXED: Ensure scanner has socketio reference and is registered
+        scanner.socketio = socketio
+        session_manager.register_socketio_connection(user_session_id, socketio)
+        print(f"🚀 Starting scan for {target} with socketio enabled and registered")
         
-        success = scanner.start_scan(target, max_depth, clear_graph=clear_graph, force_rescan_target=force_rescan_target) # **FIX**: Pass the new parameter
+        success = scanner.start_scan(target, max_depth, clear_graph=clear_graph, force_rescan_target=force_rescan_target)
         
         if success:
+            # Update session with socketio-enabled scanner
+            session_manager.update_session_scanner(user_session_id, scanner)
+            
             return jsonify({
                 'success': True,
-                'message': 'Scan started successfully',
+                'message': 'Reconnaissance scan started successfully',
                 'scan_id': scanner.logger.session_id,
-                'user_session_id': user_session_id,
+                'user_session_id': user_session_id
             })
         else:
             return jsonify({
@@ -121,170 +114,152 @@ def start_scan():
             }), 409
         
     except Exception as e:
-        print(f"ERROR: Exception in start_scan endpoint: {e}")
         traceback.print_exc()
         return jsonify({'success': False, 'error': f'Internal server error: {str(e)}'}), 500
 
 @app.route('/api/scan/stop', methods=['POST'])
 def stop_scan():
-    """Stop the current scan with immediate GUI feedback."""
-    print("=== API: /api/scan/stop called ===")
-    
+    """Stop the current scan."""
     try:
-        # Get user-specific scanner
         user_session_id, scanner = get_user_scanner()
-        print(f"Stopping scan for session: {user_session_id}")
         
         if not scanner:
-            return jsonify({
-                'success': False,
-                'error': 'No scanner found for session'
-            }), 404
+            return jsonify({'success': False, 'error': 'No scanner found for session'}), 404
         
-        # Ensure session ID is set
         if not scanner.session_id:
             scanner.session_id = user_session_id
         
-        # Use the stop mechanism
-        success = scanner.stop_scan()
+        # FIXED: Ensure scanner has socketio reference
+        scanner.socketio = socketio
+        session_manager.register_socketio_connection(user_session_id, socketio)
         
-        # Also set the Redis stop signal directly for extra reliability
+        scanner.stop_scan()
         session_manager.set_stop_signal(user_session_id)
-        
-        # Force immediate status update
         session_manager.update_scanner_status(user_session_id, 'stopped')
-        
-        # Update the full scanner state
         session_manager.update_session_scanner(user_session_id, scanner)
         
-        print(f"Stop scan completed. Success: {success}, Scanner status: {scanner.status}")
-        
         return jsonify({
             'success': True,
-            'message': 'Scan stop requested - termination initiated',
-            'user_session_id': user_session_id,
-            'scanner_status': scanner.status,
-            'stop_method': 'cross_process'
+            'message': 'Scan stop requested',
+            'user_session_id': user_session_id
         })
         
     except Exception as e:
-        print(f"ERROR: Exception in stop_scan endpoint: {e}")
         traceback.print_exc()
-        return jsonify({
-            'success': False,
-            'error': f'Internal server error: {str(e)}'
-        }), 500
+        return jsonify({'success': False, 'error': f'Internal server error: {str(e)}'}), 500
 
 
-@app.route('/api/scan/status', methods=['GET'])
+@socketio.on('connect')
+def handle_connect():
+    """
+    FIXED: Handle WebSocket connection with proper session management.
+    """
+    print(f'✓ WebSocket client connected: {request.sid}')
+    
+    # Try to restore existing session connection
+    current_flask_session_id = session.get('dnsrecon_session_id')
+    if current_flask_session_id:
+        # Register this socketio connection for the existing session
+        session_manager.register_socketio_connection(current_flask_session_id, socketio)
+        print(f'✓ Registered WebSocket for existing session: {current_flask_session_id[:8]}...')
+    
+    # Immediately send current status to new connection
+    get_scan_status()
+
+
+@socketio.on('disconnect')
+def handle_disconnect():
+    """
+    FIXED: Handle WebSocket disconnection gracefully.
+    """
+    print(f'✗ WebSocket client disconnected: {request.sid}')
+    
+    # Note: We don't immediately remove the socketio connection from session_manager
+    # because the user might reconnect. The cleanup will happen during session cleanup.
+
+
+@socketio.on('get_status')
 def get_scan_status():
-    """Get current scan status with error handling."""
+    """
+    FIXED: Get current scan status and emit real-time update with proper error handling.
+    """
     try:
-        # Get user-specific scanner
         user_session_id, scanner = get_user_scanner()
         
         if not scanner:
-            # Return default idle status if no scanner
-            return jsonify({
-                'success': True,
-                'status': {
+            status = {
                 'status': 'idle', 
                 'target_domain': None, 
                 'current_depth': 0,
                 'max_depth': 0, 
-                    'current_indicator': '',
-                    'total_indicators_found': 0,
-                    'indicators_processed': 0,
                 'progress_percentage': 0.0,
-                    'enabled_providers': [],
-                    'graph_statistics': {},
-                    'user_session_id': user_session_id
+                'user_session_id': user_session_id,
+                'graph': {'nodes': [], 'edges': [], 'statistics': {'node_count': 0, 'edge_count': 0}}
             }
-            })
-        
-        # Ensure session ID is set
+            print(f"📡 Emitting idle status for session {user_session_id[:8] if user_session_id else 'none'}...")
+        else:
             if not scanner.session_id:
                 scanner.session_id = user_session_id
             
+            # FIXED: Ensure scanner has socketio reference for future updates
+            scanner.socketio = socketio
+            session_manager.register_socketio_connection(user_session_id, socketio)
+            
             status = scanner.get_scan_status()
             status['user_session_id'] = user_session_id
             
-        # Additional debug info
-        status['debug_info'] = {
-            'scanner_object_id': id(scanner),
-            'session_id_set': bool(scanner.session_id),
-            'has_scan_thread': bool(scanner.scan_thread and scanner.scan_thread.is_alive())
-        }
+            print(f"📡 Emitting status update: {status['status']} - "
+                  f"Nodes: {len(status.get('graph', {}).get('nodes', []))}, "
+                  f"Edges: {len(status.get('graph', {}).get('edges', []))}")
             
-        return jsonify({
-            'success': True,
-            'status': status
-        })
+            # Update session with socketio-enabled scanner
+            session_manager.update_session_scanner(user_session_id, scanner)
+        
+        socketio.emit('scan_update', status)
     
     except Exception as e:
-        print(f"ERROR: Exception in get_scan_status endpoint: {e}")
         traceback.print_exc()
-        return jsonify({
-            'success': False,
-            'error': f'Internal server error: {str(e)}',
-            'fallback_status': {
+        error_status = {
             'status': 'error', 
-                'target_domain': None,
-                'current_depth': 0,
-                'max_depth': 0,
-                'progress_percentage': 0.0
+            'message': 'Failed to get status',
+            'graph': {'nodes': [], 'edges': [], 'statistics': {'node_count': 0, 'edge_count': 0}}
         }
-        }), 500
-
+        print(f"⚠️ Error getting status, emitting error status")
+        socketio.emit('scan_update', error_status)
 
 
 @app.route('/api/graph', methods=['GET'])
 def get_graph_data():
-    """Get current graph data with error handling."""
+    """Get current graph data."""
     try:
-        # Get user-specific scanner
         user_session_id, scanner = get_user_scanner()
         
-        if not scanner:
-            # Return empty graph if no scanner
-            return jsonify({
-                'success': True,
-                'graph': {
-                    'nodes': [],
-                    'edges': [],
-                    'statistics': {
-                        'node_count': 0,
-                        'edge_count': 0,
-                        'creation_time': datetime.now(timezone.utc).isoformat(),
-                        'last_modified': datetime.now(timezone.utc).isoformat()
-                    }
-                },
-                'user_session_id': user_session_id
-            })
-        
-        graph_data = scanner.get_graph_data()
-        return jsonify({
-            'success': True,
-            'graph': graph_data,
-            'user_session_id': user_session_id
-        })
-    
-    except Exception as e:
-        print(f"ERROR: Exception in get_graph_data endpoint: {e}")
-        traceback.print_exc()
-        return jsonify({
-            'success': False,
-            'error': f'Internal server error: {str(e)}',
-            'fallback_graph': {
-                'nodes': [],
-                'edges': [],
+        empty_graph = {
+            'nodes': [], 'edges': [],
             'statistics': {'node_count': 0, 'edge_count': 0}
         }
+        
+        if not scanner:
+            return jsonify({'success': True, 'graph': empty_graph, 'user_session_id': user_session_id})
+        
+        # FIXED: Ensure scanner has socketio reference
+        scanner.socketio = socketio
+        session_manager.register_socketio_connection(user_session_id, socketio)
+        
+        graph_data = scanner.get_graph_data() or empty_graph
+        
+        return jsonify({'success': True, 'graph': graph_data, 'user_session_id': user_session_id})
+    
+    except Exception as e:
+        traceback.print_exc()
+        return jsonify({
+            'success': False, 'error': f'Internal server error: {str(e)}',
+            'fallback_graph': {'nodes': [], 'edges': [], 'statistics': {}}
         }), 500
 
 @app.route('/api/graph/large-entity/extract', methods=['POST'])
 def extract_from_large_entity():
-    """Extract a node from a large entity, making it a standalone node."""
+    """Extract a node from a large entity."""
     try:
         data = request.get_json()
         large_entity_id = data.get('large_entity_id')
@@ -297,6 +272,10 @@ def extract_from_large_entity():
         if not scanner:
             return jsonify({'success': False, 'error': 'No active session found'}), 404
 
+        # FIXED: Ensure scanner has socketio reference
+        scanner.socketio = socketio
+        session_manager.register_socketio_connection(user_session_id, socketio)
+        
         success = scanner.extract_node_from_large_entity(large_entity_id, node_id)
         
         if success:
@@ -306,29 +285,30 @@ def extract_from_large_entity():
             return jsonify({'success': False, 'error': f'Failed to extract node {node_id}.'}), 500
 
     except Exception as e:
-        print(f"ERROR: Exception in extract_from_large_entity endpoint: {e}")
         traceback.print_exc()
         return jsonify({'success': False, 'error': f'Internal server error: {str(e)}'}), 500
 
 @app.route('/api/graph/node/<node_id>', methods=['DELETE'])
 def delete_graph_node(node_id):
-    """Delete a node from the graph for the current user session."""
+    """Delete a node from the graph."""
     try:
         user_session_id, scanner = get_user_scanner()
         if not scanner:
             return jsonify({'success': False, 'error': 'No active session found'}), 404
 
+        # FIXED: Ensure scanner has socketio reference  
+        scanner.socketio = socketio
+        session_manager.register_socketio_connection(user_session_id, socketio)
+        
         success = scanner.graph.remove_node(node_id)
         
         if success:
-            # Persist the change
             session_manager.update_session_scanner(user_session_id, scanner)
             return jsonify({'success': True, 'message': f'Node {node_id} deleted successfully.'})
         else:
-            return jsonify({'success': False, 'error': f'Node {node_id} not found in graph.'}), 404
+            return jsonify({'success': False, 'error': f'Node {node_id} not found.'}), 404
 
     except Exception as e:
-        print(f"ERROR: Exception in delete_graph_node endpoint: {e}")
         traceback.print_exc()
         return jsonify({'success': False, 'error': f'Internal server error: {str(e)}'}), 500
 
@@ -345,11 +325,14 @@ def revert_graph_action():
         if not scanner:
             return jsonify({'success': False, 'error': 'No active session found'}), 404
 
+        # FIXED: Ensure scanner has socketio reference
+        scanner.socketio = socketio
+        session_manager.register_socketio_connection(user_session_id, socketio)
+
         action_type = data['type']
         action_data = data['data']
         
         if action_type == 'delete':
-            # Re-add the node
             node_to_add = action_data.get('node')
             if node_to_add:
                 scanner.graph.add_node(
@@ -360,56 +343,66 @@ def revert_graph_action():
                     metadata=node_to_add.get('metadata')
                 )
             
-            # Re-add the edges
             edges_to_add = action_data.get('edges', [])
             for edge in edges_to_add:
-                # Add edge only if both nodes exist to prevent errors
                 if scanner.graph.graph.has_node(edge['from']) and scanner.graph.graph.has_node(edge['to']):
                     scanner.graph.add_edge(
-                        source_id=edge['from'],
-                        target_id=edge['to'],
+                        source_id=edge['from'], target_id=edge['to'],
                         relationship_type=edge['metadata']['relationship_type'],
                         confidence_score=edge['metadata']['confidence_score'],
                         source_provider=edge['metadata']['source_provider'],
                         raw_data=edge.get('raw_data', {})
                     )
             
-            # Persist the change
             session_manager.update_session_scanner(user_session_id, scanner)
             return jsonify({'success': True, 'message': 'Delete action reverted successfully.'})
 
         return jsonify({'success': False, 'error': f'Unknown revert action type: {action_type}'}), 400
 
     except Exception as e:
-        print(f"ERROR: Exception in revert_graph_action endpoint: {e}")
         traceback.print_exc()
         return jsonify({'success': False, 'error': f'Internal server error: {str(e)}'}), 500
 
 
 @app.route('/api/export', methods=['GET'])
 def export_results():
-    """Export complete scan results as downloadable JSON for the user session."""
+    """Export scan results as a JSON file with improved error handling."""
     try:
-        # Get user-specific scanner
         user_session_id, scanner = get_user_scanner()
         
-        # Get complete results
-        results = scanner.export_results()
+        if not scanner:
+            return jsonify({'success': False, 'error': 'No active scanner session found'}), 404
         
-        # Add session information to export
-        results['export_metadata'] = {
-            'user_session_id': user_session_id,
-            'export_timestamp': datetime.now(timezone.utc).isoformat(),
-            'export_type': 'user_session_results'
-        }
+        # FIXED: Ensure scanner has socketio reference
+        scanner.socketio = socketio
+        session_manager.register_socketio_connection(user_session_id, socketio)
         
-        # Create filename with timestamp
-        timestamp = datetime.now(timezone.utc).strftime('%Y%m%d_%H%M%S')
-        target = scanner.current_target or 'unknown'
-        filename = f"dnsrecon_{target}_{timestamp}_{user_session_id[:8]}.json"
+        # Get export data using the new export manager
+        try:
+            results = export_manager.export_scan_results(scanner)
+        except Exception as e:
+            return jsonify({'success': False, 'error': f'Failed to gather export data: {str(e)}'}), 500
         
-        # Create in-memory file
-        json_data = json.dumps(results, indent=2, ensure_ascii=False)
+        # Add user session metadata
+        results['export_metadata']['user_session_id'] = user_session_id
+        results['export_metadata']['forensic_integrity'] = 'maintained'
+        
+        # Generate filename
+        filename = export_manager.generate_filename(
+            target=scanner.current_target or 'unknown',
+            export_type='json'
+        )
+        
+        # Serialize with export manager
+        try:
+            json_data = export_manager.serialize_to_json(results)
+        except Exception as e:
+            return jsonify({
+                'success': False, 
+                'error': f'JSON serialization failed: {str(e)}'
+            }), 500
+        
+        # Create file object
         file_obj = io.BytesIO(json_data.encode('utf-8'))
         
         return send_file(
@@ -420,71 +413,98 @@ def export_results():
         )
     
     except Exception as e:
-        print(f"ERROR: Exception in export_results endpoint: {e}")
         traceback.print_exc()
         return jsonify({
             'success': False, 
-            'error': f'Export failed: {str(e)}'
+            'error': f'Export failed: {str(e)}',
+            'error_type': type(e).__name__
         }), 500
 
-
-@app.route('/api/providers', methods=['GET'])
-def get_providers():
-    """Get information about available providers for the user session."""
-    
+@app.route('/api/export/targets', methods=['GET'])
+def export_targets():
+    """Export all discovered targets as a TXT file."""
     try:
-        # Get user-specific scanner
         user_session_id, scanner = get_user_scanner()
+        if not scanner:
+            return jsonify({'success': False, 'error': 'No active scanner session found'}), 404
 
-        if scanner:
-            # Updated debug print to be consistent with the new progress bar logic
-            completed_tasks = scanner.indicators_completed
-            total_tasks = scanner.total_tasks_ever_enqueued
-            print(f"DEBUG: Task Progress - Completed: {completed_tasks}, Total Enqueued: {total_tasks}")
-        else:
-            print("DEBUG: No active scanner session found.")
+        # FIXED: Ensure scanner has socketio reference
+        scanner.socketio = socketio
+        session_manager.register_socketio_connection(user_session_id, socketio)
 
-        provider_info = scanner.get_provider_info()
+        # Use export manager for targets export
+        targets_txt = export_manager.export_targets_list(scanner)
         
-        return jsonify({
-            'success': True,
-            'providers': provider_info,
-            'user_session_id': user_session_id
-        })
+        # Generate filename using export manager
+        filename = export_manager.generate_filename(
+            target=scanner.current_target or 'unknown',
+            export_type='targets'
+        )
         
+        file_obj = io.BytesIO(targets_txt.encode('utf-8'))
+        
+        return send_file(
+            file_obj,
+            as_attachment=True,
+            download_name=filename,
+            mimetype='text/plain'
+        )
     except Exception as e:
-        print(f"ERROR: Exception in get_providers endpoint: {e}")
         traceback.print_exc()
-        return jsonify({
-            'success': False,
-            'error': f'Internal server error: {str(e)}'
-        }), 500
+        return jsonify({'success': False, 'error': f'Export failed: {str(e)}'}), 500
 
 
+@app.route('/api/export/summary', methods=['GET'])
+def export_summary():
+    """Export an executive summary as a TXT file."""
+    try:
+        user_session_id, scanner = get_user_scanner()
+        if not scanner:
+            return jsonify({'success': False, 'error': 'No active scanner session found'}), 404
+
+        # FIXED: Ensure scanner has socketio reference
+        scanner.socketio = socketio
+        session_manager.register_socketio_connection(user_session_id, socketio)
+
+        # Use export manager for summary generation
+        summary_txt = export_manager.generate_executive_summary(scanner)
+
+        # Generate filename using export manager
+        filename = export_manager.generate_filename(
+            target=scanner.current_target or 'unknown',
+            export_type='summary'
+        )
+        
+        file_obj = io.BytesIO(summary_txt.encode('utf-8'))
+        
+        return send_file(
+            file_obj,
+            as_attachment=True,
+            download_name=filename,
+            mimetype='text/plain'
+        )
+    except Exception as e:
+        traceback.print_exc()
+        return jsonify({'success': False, 'error': f'Export failed: {str(e)}'}), 500
+
 @app.route('/api/config/api-keys', methods=['POST'])
 def set_api_keys():
-    """
-    Set API keys for providers for the user session only.
-    """
+    """Set API keys for the current session."""
     try:
         data = request.get_json()
-        
         if data is None:
-            return jsonify({
-                'success': False,
-                'error': 'No API keys provided'
-            }), 400
+            return jsonify({'success': False, 'error': 'No API keys provided'}), 400
         
-        # Get user-specific scanner and config
         user_session_id, scanner = get_user_scanner()
         session_config = scanner.config
         
+        # FIXED: Ensure scanner has socketio reference
+        scanner.socketio = socketio
+        session_manager.register_socketio_connection(user_session_id, socketio)
+        
         updated_providers = []
         
-        # Iterate over the API keys provided in the request data
         for provider_name, api_key in data.items():
-            # This allows us to both set and clear keys. The config
-            # handles enabling/disabling based on if the key is empty.
             api_key_value = str(api_key or '').strip()
             success = session_config.set_api_key(provider_name.lower(), api_key_value)
             
@@ -492,63 +512,146 @@ def set_api_keys():
                 updated_providers.append(provider_name)
         
         if updated_providers:
-            # Reinitialize scanner providers to apply the new keys
             scanner._initialize_providers()
-            
-            # Persist the updated scanner object back to the user's session
             session_manager.update_session_scanner(user_session_id, scanner)
             
             return jsonify({
                 'success': True,
-                'message': f'API keys updated for session {user_session_id}: {", ".join(updated_providers)}',
-                'updated_providers': updated_providers,
+                'message': f'API keys updated for: {", ".join(updated_providers)}',
                 'user_session_id': user_session_id
             })
         else:
-            return jsonify({
-                'success': False,
-                'error': 'No valid API keys were provided or provider names were incorrect.'
-            }), 400
+            return jsonify({'success': False, 'error': 'No valid API keys were provided.'}), 400
     
     except Exception as e:
-        print(f"ERROR: Exception in set_api_keys endpoint: {e}")
         traceback.print_exc()
+        return jsonify({'success': False, 'error': f'Internal server error: {str(e)}'}), 500
+
+@app.route('/api/providers', methods=['GET'])
+def get_providers():
+    """Get enhanced information about available providers including API key sources."""
+    try:
+        user_session_id, scanner = get_user_scanner()
+        base_provider_info = scanner.get_provider_info()
+        
+        # FIXED: Ensure scanner has socketio reference
+        scanner.socketio = socketio
+        session_manager.register_socketio_connection(user_session_id, socketio)
+        
+        # Enhance provider info with API key source information
+        enhanced_provider_info = {}
+        
+        for provider_name, info in base_provider_info.items():
+            enhanced_info = dict(info)  # Copy base info
+            
+            if info['requires_api_key']:
+                # Determine API key source and configuration status
+                api_key = scanner.config.get_api_key(provider_name)
+                backend_api_key = os.getenv(f'{provider_name.upper()}_API_KEY')
+                
+                if backend_api_key:
+                    # API key configured via backend/environment
+                    enhanced_info.update({
+                        'api_key_configured': True,
+                        'api_key_source': 'backend',
+                        'api_key_help': f'API key configured via environment variable {provider_name.upper()}_API_KEY'
+                    })
+                elif api_key:
+                    # API key configured via web interface
+                    enhanced_info.update({
+                        'api_key_configured': True,
+                        'api_key_source': 'frontend',
+                        'api_key_help': f'API key set via web interface (session-only)'
+                    })
+                else:
+                    # No API key configured
+                    enhanced_info.update({
+                        'api_key_configured': False,
+                        'api_key_source': None,
+                        'api_key_help': f'Requires API key to enable {info["display_name"]} integration'
+                    })
+            else:
+                # Provider doesn't require API key
+                enhanced_info.update({
+                    'api_key_configured': True,  # Always "configured" for non-API providers
+                    'api_key_source': None,
+                    'api_key_help': None
+                })
+            
+            enhanced_provider_info[provider_name] = enhanced_info
+        
         return jsonify({
-            'success': False,
-            'error': f'Internal server error: {str(e)}'
-        }), 500
+            'success': True, 
+            'providers': enhanced_provider_info, 
+            'user_session_id': user_session_id
+        })
+    
+    except Exception as e:
+        traceback.print_exc()
+        return jsonify({'success': False, 'error': f'Internal server error: {str(e)}'}), 500
+
+
+@app.route('/api/config/providers', methods=['POST'])
+def configure_providers():
+    """Configure provider settings (enable/disable)."""
+    try:
+        data = request.get_json()
+        if data is None:
+            return jsonify({'success': False, 'error': 'No provider settings provided'}), 400
+        
+        user_session_id, scanner = get_user_scanner()
+        session_config = scanner.config
+        
+        # FIXED: Ensure scanner has socketio reference
+        scanner.socketio = socketio
+        session_manager.register_socketio_connection(user_session_id, socketio)
+        
+        updated_providers = []
+        
+        for provider_name, settings in data.items():
+            provider_name_clean = provider_name.lower().strip()
+            
+            if 'enabled' in settings:
+                # Update the enabled state in session config
+                session_config.enabled_providers[provider_name_clean] = settings['enabled']
+                updated_providers.append(provider_name_clean)
+        
+        if updated_providers:
+            # Reinitialize providers with new settings
+            scanner._initialize_providers()
+            session_manager.update_session_scanner(user_session_id, scanner)
+            
+            return jsonify({
+                'success': True,
+                'message': f'Provider settings updated for: {", ".join(updated_providers)}',
+                'user_session_id': user_session_id
+            })
+        else:
+            return jsonify({'success': False, 'error': 'No valid provider settings were provided.'}), 400
+    
+    except Exception as e:
+        traceback.print_exc()
+        return jsonify({'success': False, 'error': f'Internal server error: {str(e)}'}), 500
+
 
 @app.errorhandler(404)
 def not_found(error):
     """Handle 404 errors."""
-    return jsonify({
-        'success': False,
-        'error': 'Endpoint not found'
-    }), 404
+    return jsonify({'success': False, 'error': 'Endpoint not found'}), 404
 
 
 @app.errorhandler(500)
 def internal_error(error):
     """Handle 500 errors."""
-    print(f"ERROR: 500 Internal Server Error: {error}")
     traceback.print_exc()
-    return jsonify({
-        'success': False,
-        'error': 'Internal server error'
-    }), 500
+    return jsonify({'success': False, 'error': 'Internal server error'}), 500
 
 
 if __name__ == '__main__':
-    print("Starting DNSRecon Flask application with user session support...")
-    
-    # Load configuration from environment
     config.load_from_env()
-    
-    # Start Flask application
-    print(f"Starting server on {config.flask_host}:{config.flask_port}")
-    app.run(
-        host=config.flask_host,
-        port=config.flask_port,
-        debug=config.flask_debug,
-        threaded=True
-    )
+    print("🚀 Starting DNSRecon with enhanced WebSocket support...")
+    print(f"   Host: {config.flask_host}")
+    print(f"   Port: {config.flask_port}")
+    print(f"   Debug: {config.flask_debug}")
+    print("   WebSocket: Enhanced connection management enabled")
+    socketio.run(app, host=config.flask_host, port=config.flask_port, debug=config.flask_debug)

config.py

@@ -21,11 +21,10 @@ class Config:
         
         # --- General Settings ---
         self.default_recursion_depth = 2
-        self.default_timeout = 30
-        self.max_concurrent_requests = 5
+        self.default_timeout = 60
+        self.max_concurrent_requests = 1
         self.large_entity_threshold = 100
         self.max_retries_per_target = 8
-        self.cache_expiry_hours = 12
         
         # --- Provider Caching Settings ---
         self.cache_timeout_hours = 6  # Provider-specific cache timeout
@@ -34,14 +33,16 @@ class Config:
         self.rate_limits = {
             'crtsh': 5,
             'shodan': 60,
-            'dns': 100
+            'dns': 100,
+            'correlation': 0 # Set to 0 to make sure correlations run last
         }
         
         # --- Provider Settings ---
         self.enabled_providers = {
             'crtsh': True,
             'dns': True,
-            'shodan': False
+            'shodan': False,
+            'correlation': True # Enable the new provider by default
         }
         
         # --- Logging ---
@@ -69,7 +70,6 @@ class Config:
         self.max_concurrent_requests = int(os.getenv('MAX_CONCURRENT_REQUESTS', self.max_concurrent_requests))
         self.large_entity_threshold = int(os.getenv('LARGE_ENTITY_THRESHOLD', self.large_entity_threshold))
         self.max_retries_per_target = int(os.getenv('MAX_RETRIES_PER_TARGET', self.max_retries_per_target))
-        self.cache_expiry_hours = int(os.getenv('CACHE_EXPIRY_HOURS', self.cache_expiry_hours))
         self.cache_timeout_hours = int(os.getenv('CACHE_TIMEOUT_HOURS', self.cache_timeout_hours))
         
         # Override Flask and session settings
@@ -87,6 +87,60 @@ class Config:
             self.enabled_providers[provider] = True
         return True
     
+    def set_provider_enabled(self, provider: str, enabled: bool) -> bool:
+        """
+        Set provider enabled status for the session.
+        
+        Args:
+            provider: Provider name
+            enabled: Whether the provider should be enabled
+            
+        Returns:
+            True if the setting was applied successfully
+        """
+        provider_key = provider.lower()
+        self.enabled_providers[provider_key] = enabled
+        return True
+
+    def get_provider_enabled(self, provider: str) -> bool:
+        """
+        Get provider enabled status.
+        
+        Args:
+            provider: Provider name
+            
+        Returns:
+            True if the provider is enabled
+        """
+        provider_key = provider.lower()
+        return self.enabled_providers.get(provider_key, True)  # Default to enabled
+
+    def bulk_set_provider_settings(self, provider_settings: dict) -> dict:
+        """
+        Set multiple provider settings at once.
+        
+        Args:
+            provider_settings: Dict of provider_name -> {'enabled': bool, ...}
+            
+        Returns:
+            Dict with results for each provider
+        """
+        results = {}
+        
+        for provider_name, settings in provider_settings.items():
+            provider_key = provider_name.lower()
+            
+            try:
+                if 'enabled' in settings:
+                    self.enabled_providers[provider_key] = settings['enabled']
+                    results[provider_key] = {'success': True, 'enabled': settings['enabled']}
+                else:
+                    results[provider_key] = {'success': False, 'error': 'No enabled setting provided'}
+            except Exception as e:
+                results[provider_key] = {'success': False, 'error': str(e)}
+        
+        return results
+    
     def get_api_key(self, provider: str) -> Optional[str]:
         """Get API key for a provider."""
         return self.api_keys.get(provider)

core/graph_manager.py

@@ -4,7 +4,7 @@
 Graph data model for DNSRecon using NetworkX.
 Manages in-memory graph storage with confidence scoring and forensic metadata.
 Now fully compatible with the unified ProviderResult data model.
-UPDATED: Fixed certificate styling and correlation edge labeling.
+FIXED: Added proper pickle support to prevent weakref serialization errors.
 """
 import re
 from datetime import datetime, timezone
@@ -18,7 +18,8 @@ class NodeType(Enum):
     """Enumeration of supported node types."""
     DOMAIN = "domain"
     IP = "ip"
-    ASN = "asn"
+    ISP = "isp"
+    CA = "ca"
     LARGE_ENTITY = "large_entity"
     CORRELATION_OBJECT = "correlation_object"
 
@@ -31,6 +32,7 @@ class GraphManager:
     Thread-safe graph manager for DNSRecon infrastructure mapping.
     Uses NetworkX for in-memory graph storage with confidence scoring.
     Compatible with unified ProviderResult data model.
+    FIXED: Added proper pickle support to handle NetworkX graph serialization.
     """
 
     def __init__(self):
@@ -38,228 +40,57 @@ class GraphManager:
         self.graph = nx.DiGraph()
         self.creation_time = datetime.now(timezone.utc).isoformat()
         self.last_modified = self.creation_time
-        self.correlation_index = {}
-        # Compile regex for date filtering for efficiency
-        self.date_pattern = re.compile(r'^\d{4}-\d{2}-\d{2}[ T]\d{2}:\d{2}:\d{2}')
-        self.EXCLUDED_KEYS = ['confidence', 'provider', 'timestamp', 'type','crtsh_cert_validity_period_days']
 
     def __getstate__(self):
-        """Prepare GraphManager for pickling, excluding compiled regex."""
+        """Prepare GraphManager for pickling by converting NetworkX graph to serializable format."""
         state = self.__dict__.copy()
-        # Compiled regex patterns are not always picklable
-        if 'date_pattern' in state:
-            del state['date_pattern']
+        
+        # Convert NetworkX graph to a serializable format
+        if hasattr(self, 'graph') and self.graph:
+            # Extract all nodes with their data
+            nodes_data = {}
+            for node_id, attrs in self.graph.nodes(data=True):
+                nodes_data[node_id] = dict(attrs)
+            
+            # Extract all edges with their data
+            edges_data = []
+            for source, target, attrs in self.graph.edges(data=True):
+                edges_data.append({
+                    'source': source,
+                    'target': target,
+                    'attributes': dict(attrs)
+                })
+            
+            # Replace the NetworkX graph with serializable data
+            state['_graph_nodes'] = nodes_data
+            state['_graph_edges'] = edges_data
+            del state['graph']
+        
         return state
 
     def __setstate__(self, state):
-        """Restore GraphManager state and recompile regex."""
+        """Restore GraphManager after unpickling by reconstructing NetworkX graph."""
+        # Restore basic attributes
         self.__dict__.update(state)
-        self.date_pattern = re.compile(r'^\d{4}-\d{2}-\d{2}[ T]\d{2}:\d{2}:\d{2}')
         
-    def process_correlations_for_node(self, node_id: str):
-        """
-        UPDATED: Process correlations for a given node with enhanced tracking.
-        Now properly tracks which attribute/provider created each correlation.
-        """
-        if not self.graph.has_node(node_id):
-            return
+        # Reconstruct NetworkX graph from serializable data
+        self.graph = nx.DiGraph()
         
-        node_attributes = self.graph.nodes[node_id].get('attributes', [])
+        # Restore nodes
+        if hasattr(self, '_graph_nodes'):
+            for node_id, attrs in self._graph_nodes.items():
+                self.graph.add_node(node_id, **attrs)
+            del self._graph_nodes
         
-        # Process each attribute for potential correlations
-        for attr in node_attributes:
-            attr_name = attr.get('name')
-            attr_value = attr.get('value')
-            attr_provider = attr.get('provider', 'unknown')
-
-            # Skip excluded attributes and invalid values
-            if attr_name in self.EXCLUDED_KEYS or not isinstance(attr_value, (str, int, float, bool)) or attr_value is None:
-                continue
-
-            if isinstance(attr_value, bool):
-                continue
-                
-            if isinstance(attr_value, str) and (len(attr_value) < 4 or self.date_pattern.match(attr_value)):
-                continue
-
-            # Initialize correlation tracking for this value
-            if attr_value not in self.correlation_index:
-                self.correlation_index[attr_value] = {
-                    'nodes': set(),
-                    'sources': []  # Track which provider/attribute combinations contributed
-                }
-
-            # Add this node and source information
-            self.correlation_index[attr_value]['nodes'].add(node_id)
-            
-            # Track the source of this correlation value
-            source_info = {
-                'node_id': node_id,
-                'provider': attr_provider,
-                'attribute': attr_name,
-                'path': f"{attr_provider}_{attr_name}"
-            }
-            
-            # Add source if not already present (avoid duplicates)
-            existing_sources = [s for s in self.correlation_index[attr_value]['sources'] 
-                              if s['node_id'] == node_id and s['path'] == source_info['path']]
-            if not existing_sources:
-                self.correlation_index[attr_value]['sources'].append(source_info)
-
-            # Create correlation node if we have multiple nodes with this value
-            if len(self.correlation_index[attr_value]['nodes']) > 1:
-                self._create_enhanced_correlation_node_and_edges(attr_value, self.correlation_index[attr_value])
-
-    def _create_enhanced_correlation_node_and_edges(self, value, correlation_data):
-        """
-        UPDATED: Create correlation node and edges with detailed provider tracking.
-        """
-        correlation_node_id = f"corr_{hash(str(value)) & 0x7FFFFFFF}"
-        nodes = correlation_data['nodes']
-        sources = correlation_data['sources']
-        
-        # Create or update correlation node
-        if not self.graph.has_node(correlation_node_id):
-            # Determine the most common provider/attribute combination
-            provider_counts = {}
-            for source in sources:
-                key = f"{source['provider']}_{source['attribute']}"
-                provider_counts[key] = provider_counts.get(key, 0) + 1
-            
-            # Use the most common provider/attribute as the primary label
-            primary_source = max(provider_counts.items(), key=lambda x: x[1])[0] if provider_counts else "unknown_correlation"
-            
-            metadata = {
-                'value': value,
-                'correlated_nodes': list(nodes),
-                'sources': sources,
-                'primary_source': primary_source,
-                'correlation_count': len(nodes)
-            }
-            
-            self.add_node(correlation_node_id, NodeType.CORRELATION_OBJECT, metadata=metadata)
-            print(f"Created correlation node {correlation_node_id} for value '{value}' with {len(nodes)} nodes")
-
-        # Create edges from each node to the correlation node
-        for source in sources:
-            node_id = source['node_id']
-            provider = source['provider']
-            attribute = source['attribute']
-            
-            if self.graph.has_node(node_id) and not self.graph.has_edge(node_id, correlation_node_id):
-                # Format relationship label as "corr_provider_attribute"
-                relationship_label = f"corr_{provider}_{attribute}"
-                
-                self.add_edge(
-                    source_id=node_id,
-                    target_id=correlation_node_id,
-                    relationship_type=relationship_label,
-                    confidence_score=0.9,
-                    source_provider=provider,
-                    raw_data={
-                        'correlation_value': value,
-                        'original_attribute': attribute,
-                        'correlation_type': 'attribute_matching'
-                    }
-                )
-                
-                print(f"Added correlation edge: {node_id} -> {correlation_node_id} ({relationship_label})")
-
-
-    def _has_direct_edge_bidirectional(self, node_a: str, node_b: str) -> bool:
-        """
-        Check if there's a direct edge between two nodes in either direction.
-        Returns True if node_a→node_b OR node_b→node_a exists.
-        """
-        return (self.graph.has_edge(node_a, node_b) or 
-                self.graph.has_edge(node_b, node_a))
-
-    def _correlation_value_matches_existing_node(self, correlation_value: str) -> bool:
-        """
-        Check if correlation value contains any existing node ID as substring.
-        Returns True if match found (correlation node should NOT be created).
-        """
-        correlation_str = str(correlation_value).lower()
-        
-        # Check against all existing nodes
-        for existing_node_id in self.graph.nodes():
-            if existing_node_id.lower() in correlation_str:
-                return True
-        
-        return False
-
-    def _find_correlation_nodes_with_same_pattern(self, node_set: set) -> List[str]:
-        """
-        Find existing correlation nodes that have the exact same pattern of connected nodes.
-        Returns list of correlation node IDs with matching patterns.
-        """
-        correlation_nodes = self.get_nodes_by_type(NodeType.CORRELATION_OBJECT)
-        matching_nodes = []
-        
-        for corr_node_id in correlation_nodes:
-            # Get all nodes connected to this correlation node
-            connected_nodes = set()
-            
-            # Add all predecessors (nodes pointing TO the correlation node)
-            connected_nodes.update(self.graph.predecessors(corr_node_id))
-            
-            # Add all successors (nodes pointed TO by the correlation node)  
-            connected_nodes.update(self.graph.successors(corr_node_id))
-            
-            # Check if the pattern matches exactly
-            if connected_nodes == node_set:
-                matching_nodes.append(corr_node_id)
-        
-        return matching_nodes
-
-    def _merge_correlation_values(self, target_node_id: str, new_value: Any, corr_data: Dict) -> None:
-        """
-        Merge a new correlation value into an existing correlation node.
-        Uses same logic as large entity merging.
-        """
-        if not self.graph.has_node(target_node_id):
-            return
-            
-        target_metadata = self.graph.nodes[target_node_id]['metadata']
-        
-        # Get existing values (ensure it's a list)
-        existing_values = target_metadata.get('values', [])
-        if not isinstance(existing_values, list):
-            existing_values = [existing_values]
-        
-        # Add new value if not already present
-        if new_value not in existing_values:
-            existing_values.append(new_value)
-            
-        # Merge sources
-        existing_sources = target_metadata.get('sources', [])
-        new_sources = corr_data.get('sources', [])
-        
-        # Create set of unique sources based on (node_id, path) tuples
-        source_set = set()
-        for source in existing_sources + new_sources:
-            source_tuple = (source['node_id'], source.get('path', ''))
-            source_set.add(source_tuple)
-        
-        # Convert back to list of dictionaries
-        merged_sources = [{'node_id': nid, 'path': path} for nid, path in source_set]
-        
-        # Update metadata
-        target_metadata.update({
-            'values': existing_values,
-            'sources': merged_sources,
-            'correlated_nodes': list(set(target_metadata.get('correlated_nodes', []) + corr_data.get('nodes', []))),
-            'merge_count': len(existing_values),
-            'last_merge_timestamp': datetime.now(timezone.utc).isoformat()
-        })
-        
-        # Update description to reflect merged nature
-        value_count = len(existing_values)
-        node_count = len(target_metadata['correlated_nodes'])
-        self.graph.nodes[target_node_id]['description'] = (
-            f"Correlation container with {value_count} merged values "
-            f"across {node_count} nodes"
+        # Restore edges
+        if hasattr(self, '_graph_edges'):
+            for edge_data in self._graph_edges:
+                self.graph.add_edge(
+                    edge_data['source'], 
+                    edge_data['target'], 
+                    **edge_data['attributes']
                 )
+            del self._graph_edges
         
     def add_node(self, node_id: str, node_type: NodeType, attributes: Optional[List[Dict[str, Any]]] = None,
                 description: str = "", metadata: Optional[Dict[str, Any]] = None) -> bool:
@@ -305,16 +136,16 @@ class GraphManager:
     def add_edge(self, source_id: str, target_id: str, relationship_type: str,
                 confidence_score: float = 0.5, source_provider: str = "unknown",
                 raw_data: Optional[Dict[str, Any]] = None) -> bool:
-        """Add or update an edge between two nodes, ensuring nodes exist."""
+        """
+        UPDATED: Add or update an edge between two nodes with raw relationship labels.
+        """
         if not self.graph.has_node(source_id) or not self.graph.has_node(target_id):
             return False
 
         new_confidence = confidence_score
         
-        if relationship_type.startswith("c_"):
+        # UPDATED: Use raw relationship type - no formatting
         edge_label = relationship_type
-        else:
-            edge_label = f"{source_provider}_{relationship_type}"
         
         if self.graph.has_edge(source_id, target_id):
             # If edge exists, update confidence if the new score is higher.
@@ -324,7 +155,7 @@ class GraphManager:
                 self.graph.edges[source_id, target_id]['updated_by'] = source_provider
             return False
 
-        # Add a new edge with all attributes.
+        # Add a new edge with raw attributes
         self.graph.add_edge(source_id, target_id,
                             relationship_type=edge_label,
                             confidence_score=new_confidence,
@@ -334,30 +165,6 @@ class GraphManager:
         self.last_modified = datetime.now(timezone.utc).isoformat()
         return True
 
-    def extract_node_from_large_entity(self, large_entity_id: str, node_id_to_extract: str) -> bool:
-        """
-        Removes a node from a large entity's internal lists and updates its count.
-        This prepares the large entity for the node's promotion to a regular node.
-        """
-        if not self.graph.has_node(large_entity_id):
-            return False
-            
-        node_data = self.graph.nodes[large_entity_id]
-        attributes = node_data.get('attributes', {})
-        
-        # Remove from the list of member nodes
-        if 'nodes' in attributes and node_id_to_extract in attributes['nodes']:
-            attributes['nodes'].remove(node_id_to_extract)
-            # Update the count
-            attributes['count'] = len(attributes['nodes'])
-        else:
-            # This can happen if the node was already extracted, which is not an error.
-            print(f"Warning: Node {node_id_to_extract} not found in the 'nodes' list of {large_entity_id}.")
-            return True # Proceed as if successful
-            
-        self.last_modified = datetime.now(timezone.utc).isoformat()
-        return True
-
     def remove_node(self, node_id: str) -> bool:
         """Remove a node and its connected edges from the graph."""
         if not self.graph.has_node(node_id):
@@ -366,28 +173,6 @@ class GraphManager:
         # Remove node from the graph (NetworkX handles removing connected edges)
         self.graph.remove_node(node_id)
         
-        # Clean up the correlation index
-        keys_to_delete = []
-        for value, data in self.correlation_index.items():
-            if isinstance(data, dict) and 'nodes' in data:
-                # Updated correlation structure
-                if node_id in data['nodes']:
-                    data['nodes'].discard(node_id)
-                    # Remove sources for this node
-                    data['sources'] = [s for s in data['sources'] if s['node_id'] != node_id]
-                if not data['nodes']:  # If no other nodes are associated, remove it
-                    keys_to_delete.append(value)
-            else:
-                # Legacy correlation structure (fallback)
-                if isinstance(data, set) and node_id in data:
-                    data.discard(node_id)
-                if not data:
-                    keys_to_delete.append(value)
-        
-        for key in keys_to_delete:
-            if key in self.correlation_index:
-                del self.correlation_index[key]
-
         self.last_modified = datetime.now(timezone.utc).isoformat()
         return True
 
@@ -403,12 +188,6 @@ class GraphManager:
         """Get all nodes of a specific type."""
         return [n for n, d in self.graph.nodes(data=True) if d.get('type') == node_type.value]
 
-    def get_neighbors(self, node_id: str) -> List[str]:
-        """Get all unique neighbors (predecessors and successors) for a node."""
-        if not self.graph.has_node(node_id):
-            return []
-        return list(set(self.graph.predecessors(node_id)) | set(self.graph.successors(node_id)))
-
     def get_high_confidence_edges(self, min_confidence: float = 0.8) -> List[Tuple[str, str, Dict]]:
         """Get edges with confidence score above a given threshold."""
         return [(u, v, d) for u, v, d in self.graph.edges(data=True)
@@ -417,95 +196,57 @@ class GraphManager:
     def get_graph_data(self) -> Dict[str, Any]:
         """
         Export graph data formatted for frontend visualization.
-        UPDATED: Fixed certificate validity styling logic for unified data model.
+        SIMPLIFIED: No certificate styling - frontend handles all visual styling.
         """
         nodes = []
         for node_id, attrs in self.graph.nodes(data=True):
-            node_data = {'id': node_id, 'label': node_id, 'type': attrs.get('type', 'unknown'),
-                         'attributes': attrs.get('attributes', []), # Ensure attributes is a list
+            node_data = {
+                'id': node_id, 
+                'label': node_id, 
+                'type': attrs.get('type', 'unknown'),
+                'attributes': attrs.get('attributes', []), # Raw attributes list
                 'description': attrs.get('description', ''),
                 'metadata': attrs.get('metadata', {}),
-                         'added_timestamp': attrs.get('added_timestamp')}
-            
-            # UPDATED: Fixed certificate validity styling logic
-            node_type = node_data['type']
-            attributes_list = node_data['attributes']
-            
-            if node_type == 'domain' and isinstance(attributes_list, list):
-                # Check for certificate-related attributes
-                has_certificates = False
-                has_valid_certificates = False
-                has_expired_certificates = False
-                
-                for attr in attributes_list:
-                    attr_name = attr.get('name', '').lower()
-                    attr_provider = attr.get('provider', '').lower()
-                    attr_value = attr.get('value')
-                    
-                    # Look for certificate attributes from crt.sh provider
-                    if attr_provider == 'crtsh' or 'cert' in attr_name:
-                        has_certificates = True
-                        
-                        # Check certificate validity
-                        if attr_name == 'cert_is_currently_valid':
-                            if attr_value is True:
-                                has_valid_certificates = True
-                            elif attr_value is False:
-                                has_expired_certificates = True
-                        
-                        # Also check for certificate expiry indicators
-                        elif 'expires_soon' in attr_name and attr_value is True:
-                            has_expired_certificates = True
-                        elif 'expired' in attr_name and attr_value is True:
-                            has_expired_certificates = True
-                
-                # Apply styling based on certificate status
-                if has_expired_certificates and not has_valid_certificates:
-                    # Red for expired/invalid certificates
-                    node_data['color'] = {'background': '#ff6b6b', 'border': '#cc5555'}
-                elif not has_certificates:
-                    # Grey for domains with no certificates
-                    node_data['color'] = {'background': '#c7c7c7', 'border': '#999999'}
-                # Default green styling is handled by the frontend for domains with valid certificates
+                'added_timestamp': attrs.get('added_timestamp'),
+                'max_depth_reached': attrs.get('metadata', {}).get('max_depth_reached', False)
+            }
             
             # Add incoming and outgoing edges to node data
             if self.graph.has_node(node_id):
-                node_data['incoming_edges'] = [{'from': u, 'data': d} for u, _, d in self.graph.in_edges(node_id, data=True)]
-                node_data['outgoing_edges'] = [{'to': v, 'data': d} for _, v, d in self.graph.out_edges(node_id, data=True)]
+                node_data['incoming_edges'] = [
+                    {'from': u, 'data': d} for u, _, d in self.graph.in_edges(node_id, data=True)
+                ]
+                node_data['outgoing_edges'] = [
+                    {'to': v, 'data': d} for _, v, d in self.graph.out_edges(node_id, data=True)
+                ]
             
             nodes.append(node_data)
 
         edges = []
         for source, target, attrs in self.graph.edges(data=True):
-            edges.append({'from': source, 'to': target,
+            edges.append({
+                'from': source, 
+                'to': target,
                 'label': attrs.get('relationship_type', ''),
                 'confidence_score': attrs.get('confidence_score', 0),
                 'source_provider': attrs.get('source_provider', ''),
-                          'discovery_timestamp': attrs.get('discovery_timestamp')})
+                'discovery_timestamp': attrs.get('discovery_timestamp')
+            })
+        
         return {
-            'nodes': nodes, 'edges': edges,
+            'nodes': nodes, 
+            'edges': edges,
             'statistics': self.get_statistics()['basic_metrics']
         }
 
-    def export_json(self) -> Dict[str, Any]:
-        """Export complete graph data as a JSON-serializable dictionary."""
-        graph_data = nx.node_link_data(self.graph) # Use NetworkX's built-in robust serializer
-        return {
-            'export_metadata': {
-                'export_timestamp': datetime.now(timezone.utc).isoformat(),
-                'graph_creation_time': self.creation_time,
-                'last_modified': self.last_modified,
-                'total_nodes': self.get_node_count(),
-                'total_edges': self.get_edge_count(),
-                'graph_format': 'dnsrecon_v1_unified_model'
-            },
-            'graph': graph_data,
-            'statistics': self.get_statistics()
-        }
-
     def _get_confidence_distribution(self) -> Dict[str, int]:
-        """Get distribution of edge confidence scores."""
+        """Get distribution of edge confidence scores with empty graph handling."""
         distribution = {'high': 0, 'medium': 0, 'low': 0}
+        
+        # FIXED: Handle empty graph case
+        if self.get_edge_count() == 0:
+            return distribution
+            
         for _, _, data in self.graph.edges(data=True):
             confidence = data.get('confidence_score', 0)
             if confidence >= 0.8:
@@ -517,27 +258,46 @@ class GraphManager:
         return distribution
 
     def get_statistics(self) -> Dict[str, Any]:
-        """Get comprehensive statistics about the graph."""
-        stats = {'basic_metrics': {'total_nodes': self.get_node_count(),
-                                   'total_edges': self.get_edge_count(),
+        """Get comprehensive statistics about the graph with proper empty graph handling."""
+        
+        # FIXED: Handle empty graph case properly
+        node_count = self.get_node_count()
+        edge_count = self.get_edge_count()
+        
+        stats = {
+            'basic_metrics': {
+                'total_nodes': node_count,
+                'total_edges': edge_count,
                 'creation_time': self.creation_time,
-                                   'last_modified': self.last_modified},
-                 'node_type_distribution': {}, 'relationship_type_distribution': {},
+                'last_modified': self.last_modified
+            },
+            'node_type_distribution': {}, 
+            'relationship_type_distribution': {},
             'confidence_distribution': self._get_confidence_distribution(),
-                 'provider_distribution': {}}
-        # Calculate distributions
+            'provider_distribution': {}
+        }
+        
+        # FIXED: Only calculate distributions if we have data
+        if node_count > 0:
+            # Calculate node type distributions
             for node_type in NodeType:
-            stats['node_type_distribution'][node_type.value] = self.get_nodes_by_type(node_type).__len__()
+                count = len(self.get_nodes_by_type(node_type))
+                if count > 0:  # Only include types that exist
+                    stats['node_type_distribution'][node_type.value] = count
+        
+        if edge_count > 0:
+            # Calculate edge distributions
             for _, _, data in self.graph.edges(data=True):
                 rel_type = data.get('relationship_type', 'unknown')
                 stats['relationship_type_distribution'][rel_type] = stats['relationship_type_distribution'].get(rel_type, 0) + 1
+                
                 provider = data.get('source_provider', 'unknown')
                 stats['provider_distribution'][provider] = stats['provider_distribution'].get(provider, 0) + 1
+        
         return stats
 
     def clear(self) -> None:
-        """Clear all nodes, edges, and indices from the graph."""
+        """Clear all nodes and edges from the graph."""
         self.graph.clear()
-        self.correlation_index.clear()
         self.creation_time = datetime.now(timezone.utc).isoformat()
         self.last_modified = self.creation_time

core/logger.py

@@ -40,6 +40,7 @@ class ForensicLogger:
     """
     Thread-safe forensic logging system for DNSRecon.
     Maintains detailed audit trail of all reconnaissance activities.
+    FIXED: Enhanced pickle support to prevent weakref issues in logging handlers.
     """
     
     def __init__(self, session_id: str = ""):
@@ -65,45 +66,74 @@ class ForensicLogger:
             'target_domains': set()
         }
         
-        # Configure standard logger
+        # Configure standard logger with simple setup to avoid weakrefs
         self.logger = logging.getLogger(f'dnsrecon.{self.session_id}')
         self.logger.setLevel(logging.INFO)
         
-        # Create formatter for structured logging
+        # Create minimal formatter
         formatter = logging.Formatter(
             '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
         )
         
-        # Add console handler if not already present
+        # Add console handler only if not already present (avoid duplicate handlers)
         if not self.logger.handlers:
             console_handler = logging.StreamHandler()
             console_handler.setFormatter(formatter)
             self.logger.addHandler(console_handler)
 
     def __getstate__(self):
-        """Prepare ForensicLogger for pickling by excluding unpicklable objects."""
+        """
+        FIXED: Prepare ForensicLogger for pickling by excluding problematic objects.
+        """
         state = self.__dict__.copy()
-        # Remove the unpickleable 'logger' attribute
-        if 'logger' in state:
-            del state['logger']
-        if 'lock' in state:
-            del state['lock']
+        
+        # Remove potentially unpickleable attributes that may contain weakrefs
+        unpicklable_attrs = ['logger', 'lock']
+        for attr in unpicklable_attrs:
+            if attr in state:
+                del state[attr]
+        
+        # Convert sets to lists for JSON serialization compatibility
+        if 'session_metadata' in state:
+            metadata = state['session_metadata'].copy()
+            if 'providers_used' in metadata and isinstance(metadata['providers_used'], set):
+                metadata['providers_used'] = list(metadata['providers_used'])
+            if 'target_domains' in metadata and isinstance(metadata['target_domains'], set):
+                metadata['target_domains'] = list(metadata['target_domains'])
+            state['session_metadata'] = metadata
+        
         return state
 
     def __setstate__(self, state):
-        """Restore ForensicLogger after unpickling by reconstructing logger."""
+        """
+        FIXED: Restore ForensicLogger after unpickling by reconstructing components.
+        """
         self.__dict__.update(state)
-        # Re-initialize the 'logger' attribute
+        
+        # Re-initialize threading lock
+        self.lock = threading.Lock()
+        
+        # Re-initialize logger with minimal setup
         self.logger = logging.getLogger(f'dnsrecon.{self.session_id}')
         self.logger.setLevel(logging.INFO)
+        
         formatter = logging.Formatter(
             '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
         )
+        
+        # Only add handler if not already present
         if not self.logger.handlers:
             console_handler = logging.StreamHandler()
             console_handler.setFormatter(formatter)
             self.logger.addHandler(console_handler)
-        self.lock = threading.Lock()
+        
+        # Convert lists back to sets if needed
+        if 'session_metadata' in self.__dict__:
+            metadata = self.session_metadata
+            if 'providers_used' in metadata and isinstance(metadata['providers_used'], list):
+                metadata['providers_used'] = set(metadata['providers_used'])
+            if 'target_domains' in metadata and isinstance(metadata['target_domains'], list):
+                metadata['target_domains'] = set(metadata['target_domains'])
 
     def _generate_session_id(self) -> str:
         """Generate unique session identifier."""
@@ -143,6 +173,7 @@ class ForensicLogger:
             discovery_context=discovery_context
         )
         
+        with self.lock:
             self.api_requests.append(api_request)
             self.session_metadata['total_requests'] += 1
             self.session_metadata['providers_used'].add(provider)
@@ -150,11 +181,15 @@ class ForensicLogger:
             if target_indicator:
                 self.session_metadata['target_domains'].add(target_indicator)
         
-        # Log to standard logger
+        # Log to standard logger with error handling
+        try:
             if error:
-            self.logger.error(f"API Request Failed - {provider}: {url} - {error}")
+                self.logger.error(f"API Request Failed - {provider}: {url}")
             else:
                 self.logger.info(f"API Request - {provider}: {url} - Status: {status_code}")
+        except Exception:
+            # If logging fails, continue without breaking the application
+            pass
     
     def log_relationship_discovery(self, source_node: str, target_node: str,
                                  relationship_type: str, confidence_score: float,
@@ -183,29 +218,44 @@ class ForensicLogger:
             discovery_method=discovery_method
         )
         
+        with self.lock:
             self.relationships.append(relationship)
             self.session_metadata['total_relationships'] += 1
         
+        # Log to standard logger with error handling
+        try:
             self.logger.info(
                 f"Relationship Discovered - {source_node} -> {target_node} "
                 f"({relationship_type}) - Confidence: {confidence_score:.2f} - Provider: {provider}"
             )
+        except Exception:
+            # If logging fails, continue without breaking the application
+            pass
     
     def log_scan_start(self, target_domain: str, recursion_depth: int, 
                       enabled_providers: List[str]) -> None:
         """Log the start of a reconnaissance scan."""
+        try:
             self.logger.info(f"Scan Started - Target: {target_domain}, Depth: {recursion_depth}")
             self.logger.info(f"Enabled Providers: {', '.join(enabled_providers)}")
             
+            with self.lock:
                 self.session_metadata['target_domains'].add(target_domain)
+        except Exception:
+            pass
     
     def log_scan_complete(self) -> None:
         """Log the completion of a reconnaissance scan."""
+        with self.lock:
             self.session_metadata['end_time'] = datetime.now(timezone.utc).isoformat()
+            # Convert sets to lists for serialization
             self.session_metadata['providers_used'] = list(self.session_metadata['providers_used'])
             self.session_metadata['target_domains'] = list(self.session_metadata['target_domains'])
         
+        try:
             self.logger.info(f"Scan Complete - Session: {self.session_id}")
+        except Exception:
+            pass
     
     def export_audit_trail(self) -> Dict[str, Any]:
         """
@@ -214,6 +264,7 @@ class ForensicLogger:
         Returns:
             Dictionary containing complete session audit trail
         """
+        with self.lock:
             return {
                 'session_metadata': self.session_metadata.copy(),
                 'api_requests': [asdict(req) for req in self.api_requests],
@@ -229,7 +280,13 @@ class ForensicLogger:
             Dictionary containing summary statistics
         """
         provider_stats = {}
-        for provider in self.session_metadata['providers_used']:
+        
+        # Ensure providers_used is a set for iteration
+        providers_used = self.session_metadata['providers_used']
+        if isinstance(providers_used, list):
+            providers_used = set(providers_used)
+        
+        for provider in providers_used:
             provider_requests = [req for req in self.api_requests if req.provider == provider]
             provider_relationships = [rel for rel in self.relationships if rel.provider == provider]
             

core/provider_result.py

@@ -101,6 +101,7 @@ class ProviderResult:
         """Get the total number of attributes in this result."""
         return len(self.attributes)
 
-    def is_large_entity(self, threshold: int) -> bool:
-        """Check if this result qualifies as a large entity based on relationship count."""
-        return self.get_relationship_count() > threshold
+    ##TODO
+    #def is_large_entity(self, threshold: int) -> bool:
+    #    """Check if this result qualifies as a large entity based on relationship count."""
+    #    return self.get_relationship_count() > threshold

core/session_manager.py

@@ -6,13 +6,15 @@ import uuid
 import redis
 import pickle
 from typing import Dict, Optional, Any
+import copy
 
 from core.scanner import Scanner
 from config import config
 
 class SessionManager:
     """
-    Manages multiple scanner instances for concurrent user sessions using Redis.
+    FIXED: Manages multiple scanner instances for concurrent user sessions using Redis.
+    Enhanced to properly maintain WebSocket connections throughout scan lifecycle.
     """
     
     def __init__(self, session_timeout_minutes: int = 0):
@@ -24,7 +26,13 @@ class SessionManager:
 
         self.redis_client = redis.StrictRedis(db=0, decode_responses=False)
         self.session_timeout = session_timeout_minutes * 60  # Convert to seconds
-        self.lock = threading.Lock() # Lock for local operations, Redis handles atomic ops
+        self.lock = threading.Lock()
+        
+        # FIXED: Add a creation lock to prevent race conditions
+        self.creation_lock = threading.Lock()
+        
+        # Track active socketio connections per session
+        self.active_socketio_connections = {}
         
         # Start cleanup thread
         self.cleanup_thread = threading.Thread(target=self._cleanup_loop, daemon=True)
@@ -36,7 +44,7 @@ class SessionManager:
         """Prepare SessionManager for pickling."""
         state = self.__dict__.copy()
         # Exclude unpickleable attributes - Redis client and threading objects
-        unpicklable_attrs = ['lock', 'cleanup_thread', 'redis_client']
+        unpicklable_attrs = ['lock', 'cleanup_thread', 'redis_client', 'creation_lock', 'active_socketio_connections']
         for attr in unpicklable_attrs:
             if attr in state:
                 del state[attr]
@@ -46,9 +54,10 @@ class SessionManager:
         """Restore SessionManager after unpickling."""
         self.__dict__.update(state)
         # Re-initialize unpickleable attributes
-        import redis
         self.redis_client = redis.StrictRedis(db=0, decode_responses=False)
         self.lock = threading.Lock()
+        self.creation_lock = threading.Lock()
+        self.active_socketio_connections = {}
         self.cleanup_thread = threading.Thread(target=self._cleanup_loop, daemon=True)
         self.cleanup_thread.start()
 
@@ -60,20 +69,70 @@ class SessionManager:
         """Generates the Redis key for a session's stop signal."""
         return f"dnsrecon:stop:{session_id}"
 
-    def create_session(self) -> str:
+    def register_socketio_connection(self, session_id: str, socketio) -> None:
         """
-        Create a new user session and store it in Redis.
+        FIXED: Register a socketio connection for a session.
+        This ensures the connection is maintained throughout the session lifecycle.
         """
+        with self.lock:
+            self.active_socketio_connections[session_id] = socketio
+            print(f"Registered socketio connection for session {session_id}")
+
+    def get_socketio_connection(self, session_id: str):
+        """
+        FIXED: Get the active socketio connection for a session.
+        """
+        with self.lock:
+            return self.active_socketio_connections.get(session_id)
+
+    def _prepare_scanner_for_storage(self, scanner: Scanner, session_id: str) -> Scanner:
+        """
+        FIXED: Prepare scanner for storage by ensuring proper cleanup of unpicklable objects.
+        Now preserves socketio connection info for restoration.
+        """
+        # Set the session ID on the scanner for cross-process stop signal management
+        scanner.session_id = session_id
+        
+        # FIXED: Don't set socketio to None if we want to preserve real-time updates
+        # Instead, we'll restore it when loading the scanner
+        scanner.socketio = None
+        
+        # Force cleanup of any threading objects that might cause issues
+        if hasattr(scanner, 'stop_event'):
+            scanner.stop_event = None
+        if hasattr(scanner, 'scan_thread'):
+            scanner.scan_thread = None
+        if hasattr(scanner, 'executor'):
+            scanner.executor = None
+        if hasattr(scanner, 'status_logger_thread'):
+            scanner.status_logger_thread = None
+        if hasattr(scanner, 'status_logger_stop_event'):
+            scanner.status_logger_stop_event = None
+        
+        return scanner
+
+    def create_session(self, socketio=None) -> str:
+        """
+        FIXED: Create a new user session with enhanced WebSocket management.
+        """
+        # FIXED: Use creation lock to prevent race conditions
+        with self.creation_lock:
             session_id = str(uuid.uuid4())
             print(f"=== CREATING SESSION {session_id} IN REDIS ===")
             
+            # FIXED: Register socketio connection first
+            if socketio:
+                self.register_socketio_connection(session_id, socketio)
+            
             try:
                 from core.session_config import create_session_config
                 session_config = create_session_config()
-            scanner_instance = Scanner(session_config=session_config)
                 
-            # Set the session ID on the scanner for cross-process stop signal management
-            scanner_instance.session_id = session_id
+                # Create scanner WITHOUT socketio to avoid weakref issues
+                scanner_instance = Scanner(session_config=session_config, socketio=None)
+                
+                # Prepare scanner for storage (removes problematic objects)
+                scanner_instance = self._prepare_scanner_for_storage(scanner_instance, session_id)
                 
                 session_data = {
                     'scanner': scanner_instance,
@@ -83,22 +142,37 @@ class SessionManager:
                     'status': 'active'
                 }
                 
-            # Serialize the entire session data dictionary using pickle
-            serialized_data = pickle.dumps(session_data)
+                # Test serialization before storing to catch issues early
+                try:
+                    test_serialization = pickle.dumps(session_data)
+                    print(f"Session serialization test successful ({len(test_serialization)} bytes)")
+                except Exception as pickle_error:
+                    print(f"PICKLE TEST FAILED: {pickle_error}")
+                    # Try to identify the problematic object
+                    for key, value in session_data.items():
+                        try:
+                            pickle.dumps(value)
+                            print(f"  {key}: OK")
+                        except Exception as item_error:
+                            print(f"  {key}: FAILED - {item_error}")
+                    raise pickle_error
                 
                 # Store in Redis
                 session_key = self._get_session_key(session_id)
-            self.redis_client.setex(session_key, self.session_timeout, serialized_data)
+                self.redis_client.setex(session_key, self.session_timeout, test_serialization)
                 
                 # Initialize stop signal as False
                 stop_key = self._get_stop_signal_key(session_id)
                 self.redis_client.setex(stop_key, self.session_timeout, b'0')
                 
                 print(f"Session {session_id} stored in Redis with stop signal initialized")
+                print(f"Session has {len(scanner_instance.providers)} providers: {[p.get_name() for p in scanner_instance.providers]}")
                 return session_id
                 
             except Exception as e:
                 print(f"ERROR: Failed to create session {session_id}: {e}")
+                import traceback
+                traceback.print_exc()
                 raise
 
     def set_stop_signal(self, session_id: str) -> bool:
@@ -168,31 +242,63 @@ class SessionManager:
                 # Ensure the scanner has the correct session ID for stop signal checking
                 if 'scanner' in session_data and session_data['scanner']:
                     session_data['scanner'].session_id = session_id
+                    # FIXED: Restore socketio connection from our registry
+                    socketio_conn = self.get_socketio_connection(session_id)
+                    if socketio_conn:
+                        session_data['scanner'].socketio = socketio_conn
+                        print(f"Restored socketio connection for session {session_id}")
+                    else:
+                        print(f"No socketio connection found for session {session_id}")
+                        session_data['scanner'].socketio = None
                 return session_data
             return None
         except Exception as e:
             print(f"ERROR: Failed to get session data for {session_id}: {e}")
+            import traceback
+            traceback.print_exc()
             return None
 
     def _save_session_data(self, session_id: str, session_data: Dict[str, Any]) -> bool:
         """
         Serializes and saves session data back to Redis with updated TTL.
+        FIXED: Now preserves socketio connection during storage.
         
         Returns:
             bool: True if save was successful
         """
         try:
             session_key = self._get_session_key(session_id)
-            serialized_data = pickle.dumps(session_data)
+            
+            # Create a deep copy to avoid modifying the original scanner object
+            session_data_to_save = copy.deepcopy(session_data)
+
+            # Prepare scanner for storage if it exists
+            if 'scanner' in session_data_to_save and session_data_to_save['scanner']:
+                # FIXED: Preserve the original socketio connection before preparing for storage
+                original_socketio = session_data_to_save['scanner'].socketio
+                
+                session_data_to_save['scanner'] = self._prepare_scanner_for_storage(
+                    session_data_to_save['scanner'], 
+                    session_id
+                )
+                
+                # FIXED: If we had a socketio connection, make sure it's registered
+                if original_socketio and session_id not in self.active_socketio_connections:
+                    self.register_socketio_connection(session_id, original_socketio)
+            
+            serialized_data = pickle.dumps(session_data_to_save)
             result = self.redis_client.setex(session_key, self.session_timeout, serialized_data)
             return result
         except Exception as e:
             print(f"ERROR: Failed to save session data for {session_id}: {e}")
+            import traceback
+            traceback.print_exc()
             return False
 
     def update_session_scanner(self, session_id: str, scanner: 'Scanner') -> bool:
         """
-        Updates just the scanner object in a session with immediate persistence.
+        FIXED: Updates just the scanner object in a session with immediate persistence.
+        Now maintains socketio connection throughout the update process.
         
         Returns:
             bool: True if update was successful
@@ -200,15 +306,28 @@ class SessionManager:
         try:
             session_data = self._get_session_data(session_id)
             if session_data:
-                # Ensure scanner has the session ID
-                scanner.session_id = session_id
+                # FIXED: Preserve socketio connection before preparing for storage
+                original_socketio = scanner.socketio
+                
+                # Prepare scanner for storage
+                scanner = self._prepare_scanner_for_storage(scanner, session_id)
                 session_data['scanner'] = scanner
                 session_data['last_activity'] = time.time()
                 
+                # FIXED: Restore socketio connection after preparation
+                if original_socketio:
+                    self.register_socketio_connection(session_id, original_socketio)
+                    session_data['scanner'].socketio = original_socketio
+                
                 # Immediately save to Redis for GUI updates
                 success = self._save_session_data(session_id, session_data)
                 if success:
-                    print(f"Scanner state updated for session {session_id} (status: {scanner.status})")
+                    # Only log occasionally to reduce noise
+                    if hasattr(self, '_last_update_log'):
+                        if time.time() - self._last_update_log > 5:  # Log every 5 seconds max
+                            self._last_update_log = time.time()
+                    else:
+                        self._last_update_log = time.time()
                 else:
                     print(f"WARNING: Failed to save scanner state for session {session_id}")
                 return success
@@ -217,6 +336,8 @@ class SessionManager:
                 return False
         except Exception as e:
             print(f"ERROR: Failed to update scanner for session {session_id}: {e}")
+            import traceback
+            traceback.print_exc()
             return False
 
     def update_scanner_status(self, session_id: str, status: str) -> bool:
@@ -249,7 +370,7 @@ class SessionManager:
 
     def get_session(self, session_id: str) -> Optional[Scanner]:
         """
-        Get scanner instance for a session from Redis with session ID management.
+        FIXED: Get scanner instance for a session from Redis with proper socketio restoration.
         """
         if not session_id:
             return None
@@ -268,6 +389,15 @@ class SessionManager:
             # Ensure the scanner can check the Redis-based stop signal
             scanner.session_id = session_id
             
+            # FIXED: Restore socketio connection from our registry
+            socketio_conn = self.get_socketio_connection(session_id)
+            if socketio_conn:
+                scanner.socketio = socketio_conn
+                print(f"✓ Restored socketio connection for session {session_id}")
+            else:
+                scanner.socketio = None
+                print(f"⚠️ No socketio connection found for session {session_id}")
+        
         return scanner
 
     def get_session_status_only(self, session_id: str) -> Optional[str]:
@@ -319,6 +449,12 @@ class SessionManager:
             # Wait a moment for graceful shutdown
             time.sleep(0.5)
             
+            # FIXED: Clean up socketio connection
+            with self.lock:
+                if session_id in self.active_socketio_connections:
+                    del self.active_socketio_connections[session_id]
+                    print(f"Cleaned up socketio connection for session {session_id}")
+            
             # Delete session data and stop signal from Redis
             session_key = self._get_session_key(session_id)
             stop_key = self._get_stop_signal_key(session_id)
@@ -330,6 +466,8 @@ class SessionManager:
             
         except Exception as e:
             print(f"ERROR: Failed to terminate session {session_id}: {e}")
+            import traceback
+            traceback.print_exc()
             return False
 
     def _cleanup_loop(self) -> None:
@@ -350,6 +488,12 @@ class SessionManager:
                         self.redis_client.delete(stop_key)
                         print(f"Cleaned up orphaned stop signal for session {session_id}")
                         
+                        # Also clean up socketio connection
+                        with self.lock:
+                            if session_id in self.active_socketio_connections:
+                                del self.active_socketio_connections[session_id]
+                                print(f"Cleaned up orphaned socketio for session {session_id}")
+                        
             except Exception as e:
                 print(f"Error in cleanup loop: {e}")
             
@@ -373,14 +517,16 @@ class SessionManager:
             return {
                 'total_active_sessions': active_sessions,
                 'running_scans': running_scans,
-                'total_stop_signals': len(stop_keys)
+                'total_stop_signals': len(stop_keys),
+                'active_socketio_connections': len(self.active_socketio_connections)
             }
         except Exception as e:
             print(f"ERROR: Failed to get statistics: {e}")
             return {
                 'total_active_sessions': 0,
                 'running_scans': 0,
-                'total_stop_signals': 0
+                'total_stop_signals': 0,
+                'active_socketio_connections': 0
             }
 
 # Global session manager instance

providers/__init__.py

@@ -7,6 +7,7 @@ from .base_provider import BaseProvider
 from .crtsh_provider import CrtShProvider
 from .dns_provider import DNSProvider
 from .shodan_provider import ShodanProvider
+from .correlation_provider import CorrelationProvider
 from core.rate_limiter import GlobalRateLimiter
 
 __all__ = [
@@ -14,7 +15,8 @@ __all__ = [
     'GlobalRateLimiter',
     'CrtShProvider',
     'DNSProvider',
-    'ShodanProvider'
+    'ShodanProvider',
+    'CorrelationProvider'
 ]
 
 __version__ = "0.0.0-rc"

providers/base_provider.py

@@ -15,6 +15,7 @@ class BaseProvider(ABC):
     """
     Abstract base class for all DNSRecon data providers.
     Now supports session-specific configuration and returns standardized ProviderResult objects.
+    FIXED: Enhanced pickle support to prevent weakref serialization errors.
     """
 
     def __init__(self, name: str, rate_limit: int = 60, timeout: int = 30, session_config=None):
@@ -53,22 +54,57 @@ class BaseProvider(ABC):
     def __getstate__(self):
         """Prepare BaseProvider for pickling by excluding unpicklable objects."""
         state = self.__dict__.copy()
-        # Exclude the unpickleable '_local' attribute and stop event
-        unpicklable_attrs = ['_local', '_stop_event']
+        
+        # Exclude unpickleable attributes that may contain weakrefs
+        unpicklable_attrs = [
+            '_local',           # Thread-local storage (contains requests.Session)
+            '_stop_event',      # Threading event
+            'logger',           # Logger may contain weakrefs in handlers
+        ]
+        
         for attr in unpicklable_attrs:
             if attr in state:
                 del state[attr]
+        
+        # Also handle any potential weakrefs in the config object
+        if 'config' in state and hasattr(state['config'], '__getstate__'):
+            # If config has its own pickle support, let it handle itself
+            pass
+        elif 'config' in state:
+            # Otherwise, ensure config doesn't contain unpicklable objects
+            try:
+                # Test if config can be pickled
+                import pickle
+                pickle.dumps(state['config'])
+            except (TypeError, AttributeError):
+                # If config can't be pickled, we'll recreate it during unpickling
+                state['_config_class'] = type(state['config']).__name__
+                del state['config']
+        
         return state
 
     def __setstate__(self, state):
         """Restore BaseProvider after unpickling by reconstructing threading objects."""
         self.__dict__.update(state)
-        # Re-initialize the '_local' attribute and stop event
+        
+        # Re-initialize unpickleable attributes
         self._local = threading.local()
         self._stop_event = None
+        self.logger = get_forensic_logger()
+        
+        # Recreate config if it was removed during pickling
+        if not hasattr(self, 'config') and hasattr(self, '_config_class'):
+            if self._config_class == 'Config':
+                from config import config as global_config
+                self.config = global_config
+            elif self._config_class == 'SessionConfig':
+                from core.session_config import create_session_config
+                self.config = create_session_config()
+            del self._config_class
 
     @property
     def session(self):
+        """Get or create thread-local requests session."""
         if not hasattr(self._local, 'session'):
             self._local.session = requests.Session()
             self._local.session.headers.update({
@@ -133,6 +169,8 @@ class BaseProvider(ABC):
                     target_indicator: str = "") -> Optional[requests.Response]:
         """
         Make a rate-limited HTTP request.
+        FIXED: Returns response without automatically raising HTTPError exceptions.
+        Individual providers should handle status codes appropriately.
         """
         if self._is_stop_requested():
             print(f"Request cancelled before start: {url}")
@@ -169,8 +207,14 @@ class BaseProvider(ABC):
                 raise ValueError(f"Unsupported HTTP method: {method}")
 
             print(f"Response status: {response.status_code}")
-            response.raise_for_status()
+            
+            # FIXED: Don't automatically raise for HTTP error status codes
+            # Let individual providers handle status codes appropriately
+            # Only count 2xx responses as successful
+            if 200 <= response.status_code < 300:
                 self.successful_requests += 1
+            else:
+                self.failed_requests += 1
             
             duration_ms = (time.time() - start_time) * 1000
             self.logger.log_api_request(

providers/correlation_provider.py

@@ -0,0 +1,220 @@
+# dnsrecon/providers/correlation_provider.py
+
+import re
+from typing import Dict, Any, List
+
+from .base_provider import BaseProvider
+from core.provider_result import ProviderResult
+from core.graph_manager import NodeType, GraphManager
+
+class CorrelationProvider(BaseProvider):
+    """
+    A provider that finds correlations between nodes in the graph.
+    FIXED: Enhanced pickle support to prevent weakref issues with graph references.
+    """
+
+    def __init__(self, name: str = "correlation", session_config=None):
+        """
+        Initialize the correlation provider.
+        """
+        super().__init__(name, session_config=session_config)
+        self.graph: GraphManager | None = None
+        self.correlation_index = {}
+        self.date_pattern = re.compile(r'^\d{4}-\d{2}-\d{2}[ T]\d{2}:\d{2}:\d{2}')
+        self.EXCLUDED_KEYS = [
+            'cert_source',
+            'cert_issuer_ca_id',
+            'cert_common_name',
+            'cert_validity_period_days',
+            'cert_issuer_name',
+            'cert_serial_number',
+            'cert_entry_timestamp',
+            'cert_not_before',
+            'cert_not_after',
+            'dns_ttl',
+            'timestamp',
+            'last_update',
+            'updated_timestamp',
+            'discovery_timestamp',
+            'query_timestamp',
+        ]
+
+    def __getstate__(self):
+        """
+        FIXED: Prepare CorrelationProvider for pickling by excluding graph reference.
+        """
+        state = super().__getstate__()
+        
+        # Remove graph reference to prevent circular dependencies and weakrefs
+        if 'graph' in state:
+            del state['graph']
+        
+        # Also handle correlation_index which might contain complex objects
+        if 'correlation_index' in state:
+            # Clear correlation index as it will be rebuilt when needed
+            state['correlation_index'] = {}
+        
+        return state
+
+    def __setstate__(self, state):
+        """
+        FIXED: Restore CorrelationProvider after unpickling.
+        """
+        super().__setstate__(state)
+        
+        # Re-initialize graph reference (will be set by scanner)
+        self.graph = None
+        
+        # Re-initialize correlation index
+        self.correlation_index = {}
+        
+        # Re-compile regex pattern
+        self.date_pattern = re.compile(r'^\d{4}-\d{2}-\d{2}[ T]\d{2}:\d{2}:\d{2}')
+
+    def get_name(self) -> str:
+        """Return the provider name."""
+        return "correlation"
+
+    def get_display_name(self) -> str:
+        """Return the provider display name for the UI."""
+        return "Correlation Engine"
+
+    def requires_api_key(self) -> bool:
+        """Return True if the provider requires an API key."""
+        return False
+
+    def get_eligibility(self) -> Dict[str, bool]:
+        """Return a dictionary indicating if the provider can query domains and/or IPs."""
+        return {'domains': True, 'ips': True}
+
+    def is_available(self) -> bool:
+        """Check if the provider is available and properly configured."""
+        return True
+
+    def query_domain(self, domain: str) -> ProviderResult:
+        """
+        Query the provider for information about a domain.
+        """
+        return self._find_correlations(domain)
+
+    def query_ip(self, ip: str) -> ProviderResult:
+        """
+        Query the provider for information about an IP address.
+        """
+        return self._find_correlations(ip)
+
+    def set_graph_manager(self, graph_manager: GraphManager):
+        """
+        Set the graph manager for the provider to use.
+        """
+        self.graph = graph_manager
+
+    def _find_correlations(self, node_id: str) -> ProviderResult:
+        """
+        Find correlations for a given node.
+        FIXED: Added safety checks to prevent issues when graph is None.
+        """
+        result = ProviderResult()
+        
+        # FIXED: Ensure self.graph is not None before proceeding
+        if not self.graph or not self.graph.graph.has_node(node_id):
+            return result
+
+        try:
+            node_attributes = self.graph.graph.nodes[node_id].get('attributes', [])
+        except Exception as e:
+            # If there's any issue accessing the graph, return empty result
+            print(f"Warning: Could not access graph for correlation analysis: {e}")
+            return result
+
+        for attr in node_attributes:
+            attr_name = attr.get('name')
+            attr_value = attr.get('value')
+            attr_provider = attr.get('provider', 'unknown')
+
+            should_exclude = (
+                any(excluded_key in attr_name or attr_name == excluded_key for excluded_key in self.EXCLUDED_KEYS) or
+                not isinstance(attr_value, (str, int, float, bool)) or
+                attr_value is None or
+                isinstance(attr_value, bool) or
+                (isinstance(attr_value, str) and (
+                    len(attr_value) < 4 or
+                    self.date_pattern.match(attr_value) or
+                    attr_value.lower() in ['unknown', 'none', 'null', 'n/a', 'true', 'false', '0', '1']
+                )) or
+                (isinstance(attr_value, (int, float)) and (
+                    attr_value == 0 or
+                    attr_value == 1 or
+                    abs(attr_value) > 1000000
+                ))
+            )
+
+            if should_exclude:
+                continue
+
+            if attr_value not in self.correlation_index:
+                self.correlation_index[attr_value] = {
+                    'nodes': set(),
+                    'sources': []
+                }
+
+            self.correlation_index[attr_value]['nodes'].add(node_id)
+
+            source_info = {
+                'node_id': node_id,
+                'provider': attr_provider,
+                'attribute': attr_name,
+                'path': f"{attr_provider}_{attr_name}"
+            }
+
+            existing_sources = [s for s in self.correlation_index[attr_value]['sources']
+                              if s['node_id'] == node_id and s['path'] == source_info['path']]
+            if not existing_sources:
+                self.correlation_index[attr_value]['sources'].append(source_info)
+
+            if len(self.correlation_index[attr_value]['nodes']) > 1:
+                self._create_correlation_relationships(attr_value, self.correlation_index[attr_value], result)
+                
+        return result
+
+    def _create_correlation_relationships(self, value: Any, correlation_data: Dict[str, Any], result: ProviderResult):
+        """
+        Create correlation relationships and add them to the provider result.
+        """
+        correlation_node_id = f"corr_{hash(str(value)) & 0x7FFFFFFF}"
+        nodes = correlation_data['nodes']
+        sources = correlation_data['sources']
+
+        # Add the correlation node as an attribute to the result
+        result.add_attribute(
+            target_node=correlation_node_id,
+            name="correlation_value",
+            value=value,
+            attr_type=str(type(value)),
+            provider=self.name,
+            confidence=0.9,
+            metadata={
+                'correlated_nodes': list(nodes),
+                'sources': sources,
+            }
+        )
+
+        for source in sources:
+            node_id = source['node_id']
+            provider = source['provider']
+            attribute = source['attribute']
+            relationship_label = f"corr_{provider}_{attribute}"
+
+            # Add the relationship to the result
+            result.add_relationship(
+                source_node=node_id,
+                target_node=correlation_node_id,
+                relationship_type=relationship_label,
+                provider=self.name,
+                confidence=0.9,
+                raw_data={
+                    'correlation_value': value,
+                    'original_attribute': attribute,
+                    'correlation_type': 'attribute_matching'
+                }
+            )

providers/crtsh_provider.py

@@ -3,7 +3,7 @@
 import json
 import re
 from pathlib import Path
-from typing import List, Dict, Any, Set
+from typing import List, Dict, Any, Set, Optional
 from urllib.parse import quote
 from datetime import datetime, timezone
 import requests
@@ -11,12 +11,14 @@ import requests
 from .base_provider import BaseProvider
 from core.provider_result import ProviderResult
 from utils.helpers import _is_valid_domain
+from core.logger import get_forensic_logger
 
 
 class CrtShProvider(BaseProvider):
     """
     Provider for querying crt.sh certificate transparency database.
-    Now returns standardized ProviderResult objects with caching support.
+    FIXED: Now properly creates domain and CA nodes instead of large entities.
+    Returns standardized ProviderResult objects with caching support.
     """
     
     def __init__(self, name=None, session_config=None):
@@ -30,9 +32,9 @@ class CrtShProvider(BaseProvider):
         self.base_url = "https://crt.sh/"
         self._stop_event = None
         
-        # Initialize cache directory
-        self.cache_dir = Path('cache') / 'crtsh'
-        self.cache_dir.mkdir(parents=True, exist_ok=True)
+        # Initialize cache directory (separate from BaseProvider's HTTP cache)
+        self.domain_cache_dir = Path('cache') / 'crtsh'
+        self.domain_cache_dir.mkdir(parents=True, exist_ok=True)
         
         # Compile regex for date filtering for efficiency
         self.date_pattern = re.compile(r'^\d{4}-\d{2}-\d{2}[ T]\d{2}:\d{2}:\d{2}')
@@ -60,7 +62,7 @@ class CrtShProvider(BaseProvider):
     def _get_cache_file_path(self, domain: str) -> Path:
         """Generate cache file path for a domain."""
         safe_domain = domain.replace('.', '_').replace('/', '_').replace('\\', '_')
-        return self.cache_dir / f"{safe_domain}.json"
+        return self.domain_cache_dir / f"{safe_domain}.json"
     
     def _get_cache_status(self, cache_file_path: Path) -> str:
         """
@@ -93,7 +95,8 @@ class CrtShProvider(BaseProvider):
 
     def query_domain(self, domain: str) -> ProviderResult:
         """
-        Query crt.sh for certificates containing the domain with caching support.
+        FIXED: Query crt.sh for certificates containing the domain.
+        Now properly creates domain and CA nodes instead of large entities.
         
         Args:
             domain: Domain to investigate
@@ -110,43 +113,44 @@ class CrtShProvider(BaseProvider):
         cache_file = self._get_cache_file_path(domain)
         cache_status = self._get_cache_status(cache_file)
         
-        processed_certificates = []
         result = ProviderResult()
 
-        try:
         if cache_status == "fresh":
             result = self._load_from_cache(cache_file)
-                self.logger.logger.info(f"Using cached crt.sh data for {domain}")
+            self.logger.logger.info(f"Using fresh cached crt.sh data for {domain}")
         
         else:  # "stale" or "not_found"
-                raw_certificates = self._query_crtsh_api(domain)
+            # Query the API for the latest certificates
+            new_raw_certs = self._query_crtsh_api(domain)
             
             if self._stop_event and self._stop_event.is_set():
                 return ProviderResult()
 
-                # Process raw data into the application's expected format
-                current_processed_certs = [self._extract_certificate_metadata(cert) for cert in raw_certificates]
-
+            # Combine with old data if cache is stale
             if cache_status == "stale":
-                    # Load existing and append new processed certs
-                    existing_result = self._load_from_cache(cache_file)
-                    result = self._merge_results(existing_result, current_processed_certs, domain)
-                    self.logger.logger.info(f"Refreshed and merged cache for {domain}")
+                old_raw_certs = self._load_raw_data_from_cache(cache_file)
+                combined_certs = old_raw_certs + new_raw_certs
+                
+                # Deduplicate the combined list
+                seen_ids = set()
+                unique_certs = []
+                for cert in combined_certs:
+                    cert_id = cert.get('id')
+                    if cert_id not in seen_ids:
+                        unique_certs.append(cert)
+                        seen_ids.add(cert_id)
+                
+                raw_certificates_to_process = unique_certs
+                self.logger.logger.info(f"Refreshed and merged cache for {domain}. Total unique certs: {len(raw_certificates_to_process)}")
             else:  # "not_found"
-                    # Create new result from processed certs
-                    result = self._process_certificates_to_result(domain, raw_certificates)
+                raw_certificates_to_process = new_raw_certs
+            
+            # FIXED: Process certificates to create proper domain and CA nodes
+            result = self._process_certificates_to_result_fixed(domain, raw_certificates_to_process)
             self.logger.logger.info(f"Created fresh result for {domain} ({result.get_relationship_count()} relationships)")
 
-                # Save the result to cache
-                self._save_result_to_cache(cache_file, result, domain)
-
-        except requests.exceptions.RequestException as e:
-            self.logger.logger.error(f"API query failed for {domain}: {e}")
-            if cache_status != "not_found":
-                result = self._load_from_cache(cache_file)
-                self.logger.logger.warning(f"Using stale cache for {domain} due to API failure.")
-            else:
-                raise e  # Re-raise if there's no cache to fall back on
+            # Save the new result and the raw data to the cache
+            self._save_result_to_cache(cache_file, result, raw_certificates_to_process, domain)
 
         return result
 
@@ -200,12 +204,22 @@ class CrtShProvider(BaseProvider):
             self.logger.logger.error(f"Failed to load cached certificates from {cache_file_path}: {e}")
             return ProviderResult()
 
-    def _save_result_to_cache(self, cache_file_path: Path, result: ProviderResult, domain: str) -> None:
-        """Save processed crt.sh result to a cache file."""
+    def _load_raw_data_from_cache(self, cache_file_path: Path) -> List[Dict[str, Any]]:
+        """Load only the raw certificate data from a cache file."""
+        try:
+            with open(cache_file_path, 'r') as f:
+                cache_content = json.load(f)
+            return cache_content.get("raw_certificates", [])
+        except (json.JSONDecodeError, FileNotFoundError):
+            return []
+
+    def _save_result_to_cache(self, cache_file_path: Path, result: ProviderResult, raw_certificates: List[Dict[str, Any]], domain: str) -> None:
+        """Save processed crt.sh result and raw data to a cache file."""
         try:
             cache_data = {
                 "domain": domain,
                 "last_upstream_query": datetime.now(timezone.utc).isoformat(),
+                "raw_certificates": raw_certificates, # Store the raw data for deduplication
                 "relationships": [
                     {
                         "source_node": rel.source_node,
@@ -234,25 +248,6 @@ class CrtShProvider(BaseProvider):
         except Exception as e:
             self.logger.logger.warning(f"Failed to save cache file for {domain}: {e}")
 
-    def _merge_results(self, existing_result: ProviderResult, new_certificates: List[Dict[str, Any]], domain: str) -> ProviderResult:
-        """Merge new certificate data with existing cached result."""
-        # Create a fresh result from the new certificates
-        new_result = self._process_certificates_to_result(domain, new_certificates)
-        
-        # Simple merge strategy: combine all relationships and attributes
-        # In practice, you might want more sophisticated deduplication
-        merged_result = ProviderResult()
-        
-        # Add existing relationships and attributes
-        merged_result.relationships.extend(existing_result.relationships)
-        merged_result.attributes.extend(existing_result.attributes)
-        
-        # Add new relationships and attributes
-        merged_result.relationships.extend(new_result.relationships)
-        merged_result.attributes.extend(new_result.attributes)
-        
-        return merged_result
-
     def _query_crtsh_api(self, domain: str) -> List[Dict[str, Any]]:
         """Query crt.sh API for raw certificate data."""
         url = f"{self.base_url}?q={quote(domain)}&output=json"
@@ -261,37 +256,73 @@ class CrtShProvider(BaseProvider):
         if not response or response.status_code != 200:
             raise requests.exceptions.RequestException(f"crt.sh API returned status {response.status_code if response else 'None'}")
         
+        try:
             certificates = response.json()
+        except json.JSONDecodeError:
+            self.logger.logger.error(f"crt.sh returned invalid JSON for {domain}")
+            return []
+
         if not certificates:
             return []
         
         return certificates
 
-    def _process_certificates_to_result(self, domain: str, certificates: List[Dict[str, Any]]) -> ProviderResult:
+    def _process_certificates_to_result_fixed(self, query_domain: str, certificates: List[Dict[str, Any]]) -> ProviderResult:
         """
-        Process certificates to create ProviderResult with relationships and attributes.
+        FIXED: Process certificates to create proper domain and CA nodes.
+        Now creates individual domain nodes instead of large entities.
         """
         result = ProviderResult()
 
         if self._stop_event and self._stop_event.is_set():
-            print(f"CrtSh processing cancelled before processing for domain: {domain}")
+            self.logger.logger.info(f"CrtSh processing cancelled before processing for domain: {query_domain}")
             return result
         
+        incompleteness_warning = self._check_for_incomplete_data(query_domain, certificates)
+        if incompleteness_warning:
+            result.add_attribute(
+                target_node=query_domain,
+                name="crtsh_data_warning",
+                value=incompleteness_warning,
+                attr_type='metadata',
+                provider=self.name,
+                confidence=1.0
+            )
+
         all_discovered_domains = set()
+        processed_issuers = set()
 
         for i, cert_data in enumerate(certificates):
-            if i % 5 == 0 and self._stop_event and self._stop_event.is_set():
-                print(f"CrtSh processing cancelled at certificate {i} for domain: {domain}")
+            if i % 10 == 0 and self._stop_event and self._stop_event.is_set():
+                self.logger.logger.info(f"CrtSh processing cancelled at certificate {i} for domain: {query_domain}")
                 break
 
+            # Extract all domains from this certificate
             cert_domains = self._extract_domains_from_certificate(cert_data)
             all_discovered_domains.update(cert_domains)
 
+            # FIXED: Create CA nodes for certificate issuers (not as domain metadata)
+            issuer_name = self._parse_issuer_organization(cert_data.get('issuer_name', ''))
+            if issuer_name and issuer_name not in processed_issuers:
+                # Create relationship from query domain to CA
+                result.add_relationship(
+                    source_node=query_domain,
+                    target_node=issuer_name,
+                    relationship_type='crtsh_cert_issuer',
+                    provider=self.name,
+                    confidence=0.95,
+                    raw_data={'issuer_dn': cert_data.get('issuer_name', '')}
+                )
+                processed_issuers.add(issuer_name)
+
+            # Add certificate metadata to each domain in this certificate
+            cert_metadata = self._extract_certificate_metadata(cert_data)
             for cert_domain in cert_domains:
                 if not _is_valid_domain(cert_domain):
                     continue
 
-                for key, value in self._extract_certificate_metadata(cert_data).items():
+                # Add certificate attributes to the domain
+                for key, value in cert_metadata.items():
                     if value is not None:
                         result.add_attribute(
                             target_node=cert_domain,
@@ -299,48 +330,72 @@ class CrtShProvider(BaseProvider):
                             value=value,
                             attr_type='certificate_data',
                             provider=self.name,
-                            confidence=0.9
+                            confidence=0.9,
+                            metadata={'certificate_id': cert_data.get('id')}
                         )
 
         if self._stop_event and self._stop_event.is_set():
-            print(f"CrtSh query cancelled before relationship creation for domain: {domain}")
+            self.logger.logger.info(f"CrtSh query cancelled before relationship creation for domain: {query_domain}")
             return result
 
-        for i, discovered_domain in enumerate(all_discovered_domains):
-            if discovered_domain == domain:
+        # FIXED: Create selective relationships to avoid large entities
+        # Only create relationships to domains that are closely related
+        for discovered_domain in all_discovered_domains:
+            if discovered_domain == query_domain:
                 continue
 
-            if i % 10 == 0 and self._stop_event and self._stop_event.is_set():
-                print(f"CrtSh relationship creation cancelled for domain: {domain}")
-                break
-
             if not _is_valid_domain(discovered_domain):
                 continue
 
+            # FIXED: Only create relationships for domains that share a meaningful connection
+            # This prevents creating too many relationships that trigger large entity creation
+            if self._should_create_relationship(query_domain, discovered_domain):
                 confidence = self._calculate_domain_relationship_confidence(
-                domain, discovered_domain, [], all_discovered_domains
+                    query_domain, discovered_domain, [], all_discovered_domains
                 )
 
                 result.add_relationship(
-                source_node=domain,
+                    source_node=query_domain,
                     target_node=discovered_domain,
-                relationship_type='san_certificate',
+                    relationship_type='crtsh_san_certificate',
                     provider=self.name,
                     confidence=confidence,
                     raw_data={'relationship_type': 'certificate_discovery'}
                 )
 
                 self.log_relationship_discovery(
-                source_node=domain,
+                    source_node=query_domain,
                     target_node=discovered_domain,
-                relationship_type='san_certificate',
+                    relationship_type='crtsh_san_certificate',
                     confidence_score=confidence,
                     raw_data={'relationship_type': 'certificate_discovery'},
                     discovery_method="certificate_transparency_analysis"
                 )
 
+        self.logger.logger.info(f"CrtSh processing completed for {query_domain}: {len(all_discovered_domains)} domains, {result.get_relationship_count()} relationships")
         return result
 
+    def _should_create_relationship(self, source_domain: str, target_domain: str) -> bool:
+        """
+        FIXED: Determine if a relationship should be created between two domains.
+        This helps avoid creating too many relationships that trigger large entity creation.
+        """
+        # Always create relationships for subdomains
+        if target_domain.endswith(f'.{source_domain}') or source_domain.endswith(f'.{target_domain}'):
+            return True
+        
+        # Create relationships for domains that share a common parent (up to 2 levels)
+        source_parts = source_domain.split('.')
+        target_parts = target_domain.split('.')
+        
+        # Check if they share the same root domain (last 2 parts)
+        if len(source_parts) >= 2 and len(target_parts) >= 2:
+            source_root = '.'.join(source_parts[-2:])
+            target_root = '.'.join(target_parts[-2:])
+            return source_root == target_root
+        
+        return False
+
     def _extract_certificate_metadata(self, cert_data: Dict[str, Any]) -> Dict[str, Any]:
         """Extract comprehensive metadata from certificate data."""
         raw_issuer_name = cert_data.get('issuer_name', '')
@@ -355,7 +410,7 @@ class CrtShProvider(BaseProvider):
             'not_before': cert_data.get('not_before'),
             'not_after': cert_data.get('not_after'),
             'entry_timestamp': cert_data.get('entry_timestamp'),
-            'source': 'crt.sh'
+            'source': 'crtsh'
         }
         
         try:
@@ -367,8 +422,9 @@ class CrtShProvider(BaseProvider):
                 metadata['is_currently_valid'] = self._is_cert_valid(cert_data)
                 metadata['expires_soon'] = (not_after - datetime.now(timezone.utc)).days <= 30
                 
-                metadata['not_before'] = not_before.strftime('%Y-%m-%d %H:%M:%S UTC')
-                metadata['not_after'] = not_after.strftime('%Y-%m-%d %H:%M:%S UTC')
+                # Keep raw date format or convert to standard format
+                metadata['not_before'] = not_before.isoformat()
+                metadata['not_after'] = not_after.isoformat()
                 
         except Exception as e:
             self.logger.logger.debug(f"Error computing certificate metadata: {e}")
@@ -404,6 +460,8 @@ class CrtShProvider(BaseProvider):
             raise ValueError("Empty date string")
 
         try:
+            if isinstance(date_string, datetime):
+                return date_string.replace(tzinfo=timezone.utc)
             if date_string.endswith('Z'):
                 return datetime.fromisoformat(date_string[:-1]).replace(tzinfo=timezone.utc)
             elif '+' in date_string or date_string.endswith('UTC'):
@@ -440,7 +498,6 @@ class CrtShProvider(BaseProvider):
             return is_not_expired
 
         except Exception as e:
-            self.logger.logger.debug(f"Certificate validity check failed: {e}")
             return False
 
     def _extract_domains_from_certificate(self, cert_data: Dict[str, Any]) -> Set[str]:
@@ -495,90 +552,6 @@ class CrtShProvider(BaseProvider):
 
         return [d for d in final_domains if _is_valid_domain(d)]
 
-    def _find_shared_certificates(self, certs1: List[Dict[str, Any]], certs2: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
-        """Find certificates that are shared between two domain certificate lists."""
-        shared = []
-        
-        cert1_ids = set()
-        for cert in certs1:
-            cert_id = cert.get('certificate_id')
-            if cert_id and isinstance(cert_id, (int, str, float, bool, tuple)):
-                cert1_ids.add(cert_id)
-        
-        for cert in certs2:
-            cert_id = cert.get('certificate_id')
-            if cert_id and isinstance(cert_id, (int, str, float, bool, tuple)):
-                if cert_id in cert1_ids:
-                    shared.append(cert)
-        
-        return shared
-
-    def _summarize_certificates(self, certificates: List[Dict[str, Any]]) -> Dict[str, Any]:
-        """Create a summary of certificates for a domain."""
-        if not certificates:
-            return {
-                'total_certificates': 0,
-                'valid_certificates': 0,
-                'expired_certificates': 0,
-                'expires_soon_count': 0,
-                'unique_issuers': [],
-                'latest_certificate': None,
-                'has_valid_cert': False,
-                'certificate_details': []
-            }
-        
-        valid_count = sum(1 for cert in certificates if cert.get('is_currently_valid'))
-        expired_count = len(certificates) - valid_count
-        expires_soon_count = sum(1 for cert in certificates if cert.get('expires_soon'))
-        
-        unique_issuers = list(set(cert.get('issuer_name') for cert in certificates if cert.get('issuer_name')))
-        
-        # Find the most recent certificate
-        latest_cert = None
-        latest_date = None
-        
-        for cert in certificates:
-            try:
-                if cert.get('not_before'):
-                    cert_date = self._parse_certificate_date(cert['not_before'])
-                    if latest_date is None or cert_date > latest_date:
-                        latest_date = cert_date
-                        latest_cert = cert
-            except Exception:
-                continue
-        
-        # Sort certificates by date for better display (newest first)
-        sorted_certificates = sorted(
-            certificates, 
-            key=lambda c: self._get_certificate_sort_date(c), 
-            reverse=True
-        )
-        
-        return {
-            'total_certificates': len(certificates),
-            'valid_certificates': valid_count,
-            'expired_certificates': expired_count,
-            'expires_soon_count': expires_soon_count,
-            'unique_issuers': unique_issuers,
-            'latest_certificate': latest_cert,
-            'has_valid_cert': valid_count > 0,
-            'certificate_details': sorted_certificates
-        }
-
-    def _get_certificate_sort_date(self, cert: Dict[str, Any]) -> datetime:
-        """Get a sortable date from certificate data for chronological ordering."""
-        try:
-            if cert.get('not_before'):
-                return self._parse_certificate_date(cert['not_before'])
-            
-            if cert.get('entry_timestamp'):
-                return self._parse_certificate_date(cert['entry_timestamp'])
-                
-            return datetime(1970, 1, 1, tzinfo=timezone.utc)
-            
-        except Exception:
-            return datetime(1970, 1, 1, tzinfo=timezone.utc)
-
     def _calculate_domain_relationship_confidence(self, domain1: str, domain2: str, 
                                                 shared_certificates: List[Dict[str, Any]],
                                                 all_discovered_domains: Set[str]) -> float:
@@ -597,35 +570,7 @@ class CrtShProvider(BaseProvider):
         else:
             context_bonus = 0.0
         
-        # Adjust confidence based on shared certificates
-        if shared_certificates:
-            shared_count = len(shared_certificates)
-            if shared_count >= 3:
-                shared_bonus = 0.1
-            elif shared_count >= 2:
-                shared_bonus = 0.05
-            else:
-                shared_bonus = 0.02
-            
-            valid_shared = sum(1 for cert in shared_certificates if cert.get('is_currently_valid'))
-            if valid_shared > 0:
-                validity_bonus = 0.05
-            else:
-                validity_bonus = 0.0
-        else:
-            shared_bonus = 0.0
-            validity_bonus = 0.0
-        
-        # Adjust confidence based on certificate issuer reputation
-        issuer_bonus = 0.0
-        if shared_certificates:
-            for cert in shared_certificates:
-                issuer = cert.get('issuer_name', '').lower()
-                if any(trusted_ca in issuer for trusted_ca in ['let\'s encrypt', 'digicert', 'sectigo', 'globalsign']):
-                    issuer_bonus = max(issuer_bonus, 0.03)
-                    break
-        
-        final_confidence = base_confidence + context_bonus + shared_bonus + validity_bonus + issuer_bonus
+        final_confidence = base_confidence + context_bonus
         return max(0.1, min(1.0, final_confidence))
 
     def _determine_relationship_context(self, cert_domain: str, query_domain: str) -> str:
@@ -638,3 +583,29 @@ class CrtShProvider(BaseProvider):
             return 'parent_domain'
         else:
             return 'related_domain'
+        
+    def _check_for_incomplete_data(self, domain: str, certificates: List[Dict[str, Any]]) -> Optional[str]:
+        """
+        Analyzes the certificate list to heuristically detect if the data from crt.sh is incomplete.
+        """
+        cert_count = len(certificates)
+
+        # Heuristic 1: Check if the number of certs hits a known hard limit.
+        if cert_count >= 10000:
+            return f"Result likely truncated; received {cert_count} certificates, which may be the maximum limit."
+
+        # Heuristic 2: Check if all returned certificates are old.
+        if cert_count > 1000: # Only apply this for a reasonable number of certs
+            latest_expiry = None
+            for cert in certificates:
+                try:
+                    not_after = self._parse_certificate_date(cert.get('not_after'))
+                    if latest_expiry is None or not_after > latest_expiry:
+                        latest_expiry = not_after
+                except (ValueError, TypeError):
+                    continue
+
+            if latest_expiry and (datetime.now(timezone.utc) - latest_expiry).days > 365:
+                 return f"Incomplete data suspected: The latest certificate expired more than a year ago ({latest_expiry.strftime('%Y-%m-%d')})."
+
+        return None

providers/dns_provider.py

@@ -4,13 +4,14 @@ from dns import resolver, reversename
 from typing import Dict
 from .base_provider import BaseProvider
 from core.provider_result import ProviderResult
-from utils.helpers import _is_valid_ip, _is_valid_domain
+from utils.helpers import _is_valid_ip, _is_valid_domain, get_ip_version
 
 
 class DNSProvider(BaseProvider):
     """
     Provider for standard DNS resolution and reverse DNS lookups.
-    Now returns standardized ProviderResult objects.
+    Now returns standardized ProviderResult objects with IPv4 and IPv6 support.
+    FIXED: Enhanced pickle support to prevent resolver serialization issues.
     """
 
     def __init__(self, name=None, session_config=None):
@@ -27,6 +28,22 @@ class DNSProvider(BaseProvider):
         self.resolver.timeout = 5
         self.resolver.lifetime = 10
 
+    def __getstate__(self):
+        """Prepare the object for pickling by excluding resolver."""
+        state = super().__getstate__()
+        # Remove the unpickleable 'resolver' attribute
+        if 'resolver' in state:
+            del state['resolver']
+        return state
+
+    def __setstate__(self, state):
+        """Restore the object after unpickling by reconstructing resolver."""
+        super().__setstate__(state)
+        # Re-initialize the 'resolver' attribute
+        self.resolver = resolver.Resolver()
+        self.resolver.timeout = 5
+        self.resolver.lifetime = 10
+
     def get_name(self) -> str:
         """Return the provider name."""
         return "dns"
@@ -50,6 +67,7 @@ class DNSProvider(BaseProvider):
     def query_domain(self, domain: str) -> ProviderResult:
         """
         Query DNS records for the domain to discover relationships and attributes.
+        FIXED: Now creates separate attributes for each DNS record type.
         
         Args:
             domain: Domain to investigate
@@ -62,13 +80,13 @@ class DNSProvider(BaseProvider):
 
         result = ProviderResult()
 
-        # Query all record types
+        # Query all record types - each gets its own attribute
         for record_type in ['A', 'AAAA', 'CNAME', 'MX', 'NS', 'SOA', 'TXT', 'SRV', 'CAA']:
             try:
                 self._query_record(domain, record_type, result)
-            except resolver.NoAnswer:
+            #except resolver.NoAnswer:
                 # This is not an error, just a confirmation that the record doesn't exist.
-                self.logger.logger.debug(f"No {record_type} record found for {domain}")
+                #self.logger.logger.debug(f"No {record_type} record found for {domain}")
             except Exception as e:
                 self.failed_requests += 1
                 self.logger.logger.debug(f"{record_type} record query failed for {domain}: {e}")
@@ -77,10 +95,10 @@ class DNSProvider(BaseProvider):
 
     def query_ip(self, ip: str) -> ProviderResult:
         """
-        Query reverse DNS for the IP address.
+        Query reverse DNS for the IP address (supports both IPv4 and IPv6).
 
         Args:
-            ip: IP address to investigate
+            ip: IP address to investigate (IPv4 or IPv6)
 
         Returns:
             ProviderResult containing discovered relationships and attributes
@@ -89,57 +107,73 @@ class DNSProvider(BaseProvider):
             return ProviderResult()
 
         result = ProviderResult()
+        ip_version = get_ip_version(ip)
 
         try:
-            # Perform reverse DNS lookup
+            # Perform reverse DNS lookup (works for both IPv4 and IPv6)
             self.total_requests += 1
             reverse_name = reversename.from_address(ip)
             response = self.resolver.resolve(reverse_name, 'PTR')
             self.successful_requests += 1
 
+            ptr_records = []
             for ptr_record in response:
                 hostname = str(ptr_record).rstrip('.')
 
                 if _is_valid_domain(hostname):
+                    # Determine appropriate forward relationship type based on IP version
+                    if ip_version == 6:
+                        relationship_type = 'shodan_aaaa_record'
+                        record_prefix = 'AAAA'
+                    else:
+                        relationship_type = 'shodan_a_record'
+                        record_prefix = 'A'
+                    
                     # Add the relationship
                     result.add_relationship(
                         source_node=ip,
                         target_node=hostname,
-                        relationship_type='ptr_record',
+                        relationship_type='dns_ptr_record',
                         provider=self.name,
                         confidence=0.8,
                         raw_data={
                             'query_type': 'PTR',
                             'ip_address': ip,
+                            'ip_version': ip_version,
                             'hostname': hostname,
                             'ttl': response.ttl
                         }
                     )
 
-                    # Add PTR record as attribute to the IP
-                    result.add_attribute(
-                        target_node=ip,
-                        name='ptr_record',
-                        value=hostname,
-                        attr_type='dns_record',
-                        provider=self.name,
-                        confidence=0.8,
-                        metadata={'ttl': response.ttl}
-                    )
+                    # Add to PTR records list
+                    ptr_records.append(f"PTR: {hostname}")
 
                     # Log the relationship discovery
                     self.log_relationship_discovery(
                         source_node=ip,
                         target_node=hostname,
-                        relationship_type='ptr_record',
+                        relationship_type='dns_ptr_record',
                         confidence_score=0.8,
                         raw_data={
                             'query_type': 'PTR',
                             'ip_address': ip,
+                            'ip_version': ip_version,
                             'hostname': hostname,
                             'ttl': response.ttl
                         },
-                        discovery_method="reverse_dns_lookup"
+                        discovery_method=f"reverse_dns_lookup_ipv{ip_version}"
+                    )
+
+            # Add PTR records as separate attribute
+            if ptr_records:
+                result.add_attribute(
+                    target_node=ip,
+                    name='ptr_records',  # Specific name for PTR records
+                    value=ptr_records,
+                    attr_type='dns_record',
+                    provider=self.name,
+                    confidence=0.8,
+                    metadata={'ttl': response.ttl, 'ip_version': ip_version}
                 )
 
         except resolver.NXDOMAIN:
@@ -155,12 +189,8 @@ class DNSProvider(BaseProvider):
 
     def _query_record(self, domain: str, record_type: str, result: ProviderResult) -> None:
         """
-        Query a specific type of DNS record for the domain and add results to ProviderResult.
-        
-        Args:
-            domain: Domain to query
-            record_type: DNS record type (A, AAAA, CNAME, etc.)
-            result: ProviderResult to populate
+        FIXED: Query DNS records with unique attribute names for each record type.
+        Enhanced to better handle IPv6 AAAA records.
         """
         try:
             self.total_requests += 1
@@ -173,6 +203,10 @@ class DNSProvider(BaseProvider):
                 target = ""
                 if record_type in ['A', 'AAAA']:
                     target = str(record)
+                    # Validate that the IP address is properly formed
+                    if not _is_valid_ip(target):
+                        self.logger.logger.debug(f"Invalid IP address in {record_type} record: {target}")
+                        continue
                 elif record_type in ['CNAME', 'NS', 'PTR']:
                     target = str(record.target).rstrip('.')
                 elif record_type == 'MX':
@@ -180,28 +214,38 @@ class DNSProvider(BaseProvider):
                 elif record_type == 'SOA':
                     target = str(record.mname).rstrip('.')
                 elif record_type in ['TXT']:
-                    # TXT records are treated as attributes, not relationships
+                    # Keep raw TXT record value
                     txt_value = str(record).strip('"')
-                    dns_records.append(f"TXT: {txt_value}")
+                    dns_records.append(txt_value)  # Just the value for TXT
                     continue
                 elif record_type == 'SRV':
                     target = str(record.target).rstrip('.')
                 elif record_type == 'CAA':
+                    # Keep raw CAA record format
                     caa_value = f"{record.flags} {record.tag.decode('utf-8')} \"{record.value.decode('utf-8')}\""
-                    dns_records.append(f"CAA: {caa_value}")
+                    dns_records.append(caa_value)  # Just the value for CAA
                     continue
                 else:
                     target = str(record)
 
                 if target:
+                    # Determine IP version for metadata if this is an IP record
+                    ip_version = None
+                    if record_type in ['A', 'AAAA'] and _is_valid_ip(target):
+                        ip_version = get_ip_version(target)
+                    
                     raw_data = {
                         'query_type': record_type,
                         'domain': domain,
                         'value': target,
                         'ttl': response.ttl
                     }
-                    relationship_type = f"{record_type.lower()}_record"
-                    confidence = 0.8  # Standard confidence for DNS records
+                    
+                    if ip_version:
+                        raw_data['ip_version'] = ip_version
+                    
+                    relationship_type = f"dns_{record_type.lower()}_record"
+                    confidence = 0.8
 
                     # Add relationship
                     result.add_relationship(
@@ -213,33 +257,47 @@ class DNSProvider(BaseProvider):
                         raw_data=raw_data
                     )
 
-                    # Add DNS record as attribute to the source domain
-                    dns_records.append(f"{record_type}: {target}")
+                    # Add target to records list
+                    dns_records.append(target)
+
+                    # Log relationship discovery with IP version info
+                    discovery_method = f"dns_{record_type.lower()}_record"
+                    if ip_version:
+                        discovery_method += f"_ipv{ip_version}"
                     
-                    # Log relationship discovery
                     self.log_relationship_discovery(
                         source_node=domain,
                         target_node=target,
                         relationship_type=relationship_type,
                         confidence_score=confidence,
                         raw_data=raw_data,
-                        discovery_method=f"dns_{record_type.lower()}_record"
+                        discovery_method=discovery_method
                     )
 
-            # Add DNS records as a consolidated attribute
+            # FIXED: Create attribute with specific name for each record type
             if dns_records:
+                # Use record type specific attribute name (e.g., 'a_records', 'mx_records', etc.)
+                attribute_name = f"{record_type.lower()}_records"
+                
+                metadata = {'record_type': record_type, 'ttl': response.ttl}
+                
+                # Add IP version info for A/AAAA records
+                if record_type in ['A', 'AAAA'] and dns_records:
+                    first_ip_version = get_ip_version(dns_records[0])
+                    if first_ip_version:
+                        metadata['ip_version'] = first_ip_version
+                
                 result.add_attribute(
                     target_node=domain,
-                    name='dns_records',
+                    name=attribute_name,  # UNIQUE name for each record type!
                     value=dns_records,
                     attr_type='dns_record_list',
                     provider=self.name,
                     confidence=0.8,
-                    metadata={'record_types': [record_type]}
+                    metadata=metadata
                 )
 
         except Exception as e:
             self.failed_requests += 1
             self.logger.logger.debug(f"{record_type} record query failed for {domain}: {e}")
-            # Re-raise the exception so the scanner can handle it
             raise e

providers/shodan_provider.py

@@ -8,13 +8,13 @@ import requests
 
 from .base_provider import BaseProvider
 from core.provider_result import ProviderResult
-from utils.helpers import _is_valid_ip, _is_valid_domain
+from utils.helpers import _is_valid_ip, _is_valid_domain, get_ip_version, normalize_ip
 
 
 class ShodanProvider(BaseProvider):
     """
     Provider for querying Shodan API for IP address information.
-    Now returns standardized ProviderResult objects with caching support.
+    Now returns standardized ProviderResult objects with caching support for IPv4 and IPv6.
     """
 
     def __init__(self, name=None, session_config=None):
@@ -28,13 +28,61 @@ class ShodanProvider(BaseProvider):
         self.base_url = "https://api.shodan.io"
         self.api_key = self.config.get_api_key('shodan')
         
+        # FIXED: Don't fail initialization on connection issues - defer to actual usage
+        self._connection_tested = False
+        self._connection_works = False
+
         # Initialize cache directory
         self.cache_dir = Path('cache') / 'shodan'
         self.cache_dir.mkdir(parents=True, exist_ok=True)
 
+    def __getstate__(self):
+        """Prepare the object for pickling."""
+        state = super().__getstate__()
+        return state
+
+    def __setstate__(self, state):
+        """Restore the object after unpickling."""
+        super().__setstate__(state)
+
+    def _check_api_connection(self) -> bool:
+        """
+        FIXED: Lazy connection checking - only test when actually needed.
+        Don't block provider initialization on network issues.
+        """
+        if self._connection_tested:
+            return self._connection_works
+            
+        if not self.api_key:
+            self._connection_tested = True
+            self._connection_works = False
+            return False
+            
+        try:
+            print(f"Testing Shodan API connection with key: {self.api_key[:8]}...")
+            response = self.session.get(f"{self.base_url}/api-info?key={self.api_key}", timeout=5)
+            self._connection_works = response.status_code == 200
+            print(f"Shodan API test result: {response.status_code} - {'Success' if self._connection_works else 'Failed'}")
+        except requests.exceptions.RequestException as e:
+            print(f"Shodan API connection test failed: {e}")
+            self._connection_works = False
+        finally:
+            self._connection_tested = True
+            
+        return self._connection_works
+
     def is_available(self) -> bool:
-        """Check if Shodan provider is available (has valid API key in this session)."""
-        return self.api_key is not None and len(self.api_key.strip()) > 0
+        """
+        FIXED: Check if Shodan provider is available based on API key presence.
+        Don't require successful connection test during initialization.
+        """
+        has_api_key = self.api_key is not None and len(self.api_key.strip()) > 0
+        
+        if not has_api_key:
+            return False
+            
+        # FIXED: Only test connection on first actual usage, not during initialization
+        return True
 
     def get_name(self) -> str:
         """Return the provider name."""
@@ -53,8 +101,19 @@ class ShodanProvider(BaseProvider):
         return {'domains': False, 'ips': True}
 
     def _get_cache_file_path(self, ip: str) -> Path:
-        """Generate cache file path for an IP address."""
+        """
+        Generate cache file path for an IP address (IPv4 or IPv6).
+        IPv6 addresses contain colons which are replaced with underscores for filesystem safety.
+        """
+        # Normalize the IP address first to ensure consistent caching
+        normalized_ip = normalize_ip(ip)
+        if not normalized_ip:
+            # Fallback for invalid IPs
             safe_ip = ip.replace('.', '_').replace(':', '_')
+        else:
+            # Replace problematic characters for both IPv4 and IPv6
+            safe_ip = normalized_ip.replace('.', '_').replace(':', '_')
+        
         return self.cache_dir / f"{safe_ip}.json"
 
     def _get_cache_status(self, cache_file_path: Path) -> str:
@@ -87,57 +146,156 @@ class ShodanProvider(BaseProvider):
 
     def query_domain(self, domain: str) -> ProviderResult:
         """
-        Domain queries are no longer supported for the Shodan provider.
-        
-        Args:
-            domain: Domain to investigate
-            
-        Returns:
-            Empty ProviderResult
+        Shodan does not support domain queries. This method returns an empty result.
         """
         return ProviderResult()
 
     def query_ip(self, ip: str) -> ProviderResult:
         """
-        Query Shodan for information about an IP address, with caching of processed data.
+        Query Shodan for information about an IP address (IPv4 or IPv6), with caching of processed data.
+        FIXED: Proper 404 handling to prevent unnecessary retries.
         
         Args:
-            ip: IP address to investigate
+            ip: IP address to investigate (IPv4 or IPv6)
             
         Returns:
             ProviderResult containing discovered relationships and attributes
+            
+        Raises:
+            Exception: For temporary failures that should be retried (timeouts, 502/503 errors, connection issues)
         """
-        if not _is_valid_ip(ip) or not self.is_available():
+        if not _is_valid_ip(ip):
             return ProviderResult()
             
-        cache_file = self._get_cache_file_path(ip)
+        # Test connection only when actually making requests
+        if not self._check_api_connection():
+            print(f"Shodan API not available for {ip} - API key: {'present' if self.api_key else 'missing'}")
+            return ProviderResult()
+        
+        # Normalize IP address for consistent processing
+        normalized_ip = normalize_ip(ip)
+        if not normalized_ip:
+            return ProviderResult()
+        
+        cache_file = self._get_cache_file_path(normalized_ip)
         cache_status = self._get_cache_status(cache_file)
         
-        result = ProviderResult()
+        if cache_status == "fresh":
+            self.logger.logger.debug(f"Using fresh cache for Shodan query: {normalized_ip}")
+            return self._load_from_cache(cache_file)
+        
+        # Need to query API
+        self.logger.logger.debug(f"Querying Shodan API for: {normalized_ip}")
+        url = f"{self.base_url}/shodan/host/{normalized_ip}"
+        params = {'key': self.api_key}
         
         try:
-            if cache_status == "fresh":
-                result = self._load_from_cache(cache_file)
-                self.logger.logger.info(f"Using cached Shodan data for {ip}")
-            else:  # "stale" or "not_found"
-                url = f"{self.base_url}/shodan/host/{ip}"
-                params = {'key': self.api_key}
-                response = self.make_request(url, method="GET", params=params, target_indicator=ip)
+            response = self.make_request(url, method="GET", params=params, target_indicator=normalized_ip)
             
-                if response and response.status_code == 200:
-                    data = response.json()
-                    # Process the data into ProviderResult BEFORE caching
-                    result = self._process_shodan_data(ip, data)
-                    self._save_to_cache(cache_file, result, data)  # Save both result and raw data
-                elif cache_status == "stale":
-                    # If API fails on a stale cache, use the old data
-                    result = self._load_from_cache(cache_file)
-
-        except requests.exceptions.RequestException as e:
-            self.logger.logger.error(f"Shodan API query failed for {ip}: {e}")
+            if not response:
+                self.logger.logger.warning(f"Shodan API unreachable for {normalized_ip} - network failure")
                 if cache_status == "stale":
-                result = self._load_from_cache(cache_file)
+                    self.logger.logger.info(f"Using stale cache for {normalized_ip} due to network failure")
+                    return self._load_from_cache(cache_file)
+                else:
+                    # FIXED: Treat network failures as "no information" rather than retryable errors
+                    self.logger.logger.info(f"No Shodan data available for {normalized_ip} due to network failure")
+                    result = ProviderResult()  # Empty result
+                    network_failure_data = {'shodan_status': 'network_unreachable', 'error': 'API unreachable'}
+                    self._save_to_cache(cache_file, result, network_failure_data)
+                    return result
             
+            # FIXED: Handle different status codes more precisely
+            if response.status_code == 200:
+                self.logger.logger.debug(f"Shodan returned data for {normalized_ip}")
+                try:
+                    data = response.json()
+                    result = self._process_shodan_data(normalized_ip, data)
+                    self._save_to_cache(cache_file, result, data)
+                    return result
+                except json.JSONDecodeError as e:
+                    self.logger.logger.error(f"Invalid JSON response from Shodan for {normalized_ip}: {e}")
+                    if cache_status == "stale":
+                        return self._load_from_cache(cache_file)
+                    else:
+                        raise requests.exceptions.RequestException("Invalid JSON response from Shodan - should retry")
+            
+            elif response.status_code == 404:
+                # FIXED: 404 = "no information available" - successful but empty result, don't retry
+                self.logger.logger.debug(f"Shodan has no information for {normalized_ip} (404)")
+                result = ProviderResult()  # Empty but successful result
+                # Cache the empty result to avoid repeated queries
+                empty_data = {'shodan_status': 'no_information', 'status_code': 404}
+                self._save_to_cache(cache_file, result, empty_data)
+                return result
+            
+            elif response.status_code in [401, 403]:
+                # Authentication/authorization errors - permanent failures, don't retry
+                self.logger.logger.error(f"Shodan API authentication failed for {normalized_ip} (HTTP {response.status_code})")
+                return ProviderResult()  # Empty result, don't retry
+            
+            elif response.status_code == 429:
+                # Rate limiting - should be handled by rate limiter, but if we get here, retry
+                self.logger.logger.warning(f"Shodan API rate limited for {normalized_ip} (HTTP {response.status_code})")
+                if cache_status == "stale":
+                    self.logger.logger.info(f"Using stale cache for {normalized_ip} due to rate limiting")
+                    return self._load_from_cache(cache_file)
+                else:
+                    raise requests.exceptions.RequestException(f"Shodan API rate limited (HTTP {response.status_code}) - should retry")
+            
+            elif response.status_code in [500, 502, 503, 504]:
+                # Server errors - temporary failures that should be retried
+                self.logger.logger.warning(f"Shodan API server error for {normalized_ip} (HTTP {response.status_code})")
+                if cache_status == "stale":
+                    self.logger.logger.info(f"Using stale cache for {normalized_ip} due to server error")
+                    return self._load_from_cache(cache_file)
+                else:
+                    raise requests.exceptions.RequestException(f"Shodan API server error (HTTP {response.status_code}) - should retry")
+            
+            else:
+                # FIXED: Other HTTP status codes - treat as no information available, don't retry
+                self.logger.logger.info(f"Shodan returned status {response.status_code} for {normalized_ip} - treating as no information")
+                result = ProviderResult()  # Empty result
+                no_info_data = {'shodan_status': 'no_information', 'status_code': response.status_code}
+                self._save_to_cache(cache_file, result, no_info_data)
+                return result
+                
+        except requests.exceptions.Timeout:
+            # Timeout errors - should be retried
+            self.logger.logger.warning(f"Shodan API timeout for {normalized_ip}")
+            if cache_status == "stale":
+                self.logger.logger.info(f"Using stale cache for {normalized_ip} due to timeout")
+                return self._load_from_cache(cache_file)
+            else:
+                raise  # Re-raise timeout for retry
+        
+        except requests.exceptions.ConnectionError:
+            # Connection errors - should be retried
+            self.logger.logger.warning(f"Shodan API connection error for {normalized_ip}")
+            if cache_status == "stale":
+                self.logger.logger.info(f"Using stale cache for {normalized_ip} due to connection error")
+                return self._load_from_cache(cache_file)
+            else:
+                raise  # Re-raise connection error for retry
+        
+        except json.JSONDecodeError:
+            # JSON parsing error - treat as temporary failure
+            self.logger.logger.error(f"Invalid JSON response from Shodan for {normalized_ip}")
+            if cache_status == "stale":
+                self.logger.logger.info(f"Using stale cache for {normalized_ip} due to JSON parsing error")
+                return self._load_from_cache(cache_file)
+            else:
+                raise requests.exceptions.RequestException("Invalid JSON response from Shodan - should retry")
+        
+        # FIXED: Remove the generic RequestException handler that was causing 404s to retry
+        # Now only specific exceptions that should be retried are re-raised
+        
+        except Exception as e:
+            # FIXED: Unexpected exceptions - log but treat as no information available, don't retry
+            self.logger.logger.warning(f"Unexpected exception in Shodan query for {normalized_ip}: {e}")
+            result = ProviderResult()  # Empty result
+            error_data = {'shodan_status': 'error', 'error': str(e)}
+            self._save_to_cache(cache_file, result, error_data)
             return result
 
     def _load_from_cache(self, cache_file_path: Path) -> ProviderResult:
@@ -211,73 +369,100 @@ class ShodanProvider(BaseProvider):
 
     def _process_shodan_data(self, ip: str, data: Dict[str, Any]) -> ProviderResult:
         """
-        Process Shodan data to extract relationships and attributes.
-        
-        Args:
-            ip: IP address queried
-            data: Raw Shodan response data
-            
-        Returns:
-            ProviderResult with relationships and attributes
+        VERIFIED: Process Shodan data creating ISP nodes with ASN attributes and proper relationships.
+        Enhanced to include IP version information for IPv6 addresses.
         """
         result = ProviderResult()
         
+        # Determine IP version for metadata
+        ip_version = get_ip_version(ip)
+
+        # VERIFIED: Extract ISP information and create proper ISP node with ASN
+        isp_name = data.get('org')
+        asn_value = data.get('asn')
+
+        if isp_name and asn_value:
+            # Create relationship from IP to ISP
+            result.add_relationship(
+                source_node=ip,
+                target_node=isp_name,
+                relationship_type='shodan_isp',
+                provider=self.name,
+                confidence=0.9,
+                raw_data={'asn': asn_value, 'shodan_org': isp_name, 'ip_version': ip_version}
+            )
+            
+            # Add ASN as attribute to the ISP node
+            result.add_attribute(
+                target_node=isp_name,
+                name='asn',
+                value=asn_value,
+                attr_type='isp_info',
+                provider=self.name,
+                confidence=0.9,
+                metadata={'description': 'Autonomous System Number from Shodan', 'ip_version': ip_version}
+            )
+            
+            # Also add organization name as attribute to ISP node for completeness
+            result.add_attribute(
+                target_node=isp_name,
+                name='organization_name',
+                value=isp_name,
+                attr_type='isp_info',
+                provider=self.name,
+                confidence=0.9,
+                metadata={'description': 'Organization name from Shodan', 'ip_version': ip_version}
+            )
+
+        # Process hostnames (reverse DNS)
         for key, value in data.items():
             if key == 'hostnames':
                 for hostname in value:
                     if _is_valid_domain(hostname):
+                        # Use appropriate relationship type based on IP version
+                        if ip_version == 6:
+                            relationship_type = 'shodan_aaaa_record'
+                        else:
+                            relationship_type = 'shodan_a_record'
+                        
                         result.add_relationship(
                             source_node=ip,
                             target_node=hostname,
-                            relationship_type='a_record',
+                            relationship_type=relationship_type,
                             provider=self.name,
                             confidence=0.8,
-                            raw_data=data
+                            raw_data={**data, 'ip_version': ip_version}
                         )
                         self.log_relationship_discovery(
                             source_node=ip,
                             target_node=hostname,
-                            relationship_type='a_record',
+                            relationship_type=relationship_type,
                             confidence_score=0.8,
-                            raw_data=data,
-                            discovery_method="shodan_host_lookup"
-                        )
-            elif key == 'asn':
-                asn_name = f"AS{value[2:]}" if isinstance(value, str) and value.startswith('AS') else f"AS{value}"
-                result.add_relationship(
-                    source_node=ip,
-                    target_node=asn_name,
-                    relationship_type='asn_membership',
-                    provider=self.name,
-                    confidence=0.7,
-                    raw_data=data
-                )
-                self.log_relationship_discovery(
-                    source_node=ip,
-                    target_node=asn_name,
-                    relationship_type='asn_membership',
-                    confidence_score=0.7,
-                    raw_data=data,
-                    discovery_method="shodan_asn_lookup"
+                            raw_data={**data, 'ip_version': ip_version},
+                            discovery_method=f"shodan_host_lookup_ipv{ip_version}"
                         )
             elif key == 'ports':
+                # Add open ports as attributes to the IP
                 for port in value:
                     result.add_attribute(
                         target_node=ip,
-                        name='open_port',
+                        name='shodan_open_port',
                         value=port,
-                        attr_type='network_info',
+                        attr_type='shodan_network_info',
                         provider=self.name,
-                        confidence=0.9
+                        confidence=0.9,
+                        metadata={'ip_version': ip_version}
                     )
             elif isinstance(value, (str, int, float, bool)) and value is not None:
+                # Add other Shodan fields as IP attributes (keep raw field names)
                 result.add_attribute(
                     target_node=ip,
-                    name=f"shodan_{key}",
+                    name=key,  # Raw field name from Shodan API
                     value=value,
                     attr_type='shodan_info',
                     provider=self.name,
-                    confidence=0.9
+                    confidence=0.9,
+                    metadata={'ip_version': ip_version}
                 )
 
         return result

requirements.txt

@@ -1,10 +1,13 @@
-Flask>=2.3.3
-networkx>=3.1
-requests>=2.31.0
-python-dateutil>=2.8.2
-Werkzeug>=2.3.7
-urllib3>=2.0.0
-dnspython>=2.4.2
+Flask
+networkx
+requests
+python-dateutil
+Werkzeug
+urllib3
+dnspython
 gunicorn
 redis
 python-dotenv
+psycopg2-binary
+Flask-SocketIO
+eventlet

static/js/graph.js

@@ -1,3 +1,4 @@
+// dnsrecon-reduced/static/js/graph.js
 /**
  * Graph visualization module for DNSRecon
  * Handles network graph rendering using vis.js with proper large entity node hiding
@@ -214,7 +215,6 @@ class GraphManager {
         });
 
         document.body.appendChild(this.contextMenu);
-        console.log('Context menu created and added to body');
     }
 
     /**
@@ -291,7 +291,6 @@ class GraphManager {
         // FIXED: Right-click context menu
         this.container.addEventListener('contextmenu', (event) => {
             event.preventDefault();
-            console.log('Right-click detected at:', event.offsetX, event.offsetY);
             
             // Get coordinates relative to the canvas
             const pointer = {
@@ -300,7 +299,6 @@ class GraphManager {
             };
             
             const nodeId = this.network.getNodeAt(pointer);
-            console.log('Node at pointer:', nodeId);
             
             if (nodeId) {
                 // Pass the original client event for positioning
@@ -341,19 +339,12 @@ class GraphManager {
         // Stabilization events with progress
         this.network.on('stabilizationProgress', (params) => {
             const progress = params.iterations / params.total;
-            this.updateStabilizationProgress(progress);
         });
 
         this.network.on('stabilizationIterationsDone', () => {
             this.onStabilizationComplete();
         });
 
-        // Selection events
-        this.network.on('select', (params) => {
-            console.log('Selected nodes:', params.nodes);
-            console.log('Selected edges:', params.edges);
-        });
-
         // Click away to hide context menu
         document.addEventListener('click', (e) => {
             if (!this.contextMenu.contains(e.target)) {
@@ -372,104 +363,126 @@ class GraphManager {
         }
 
         try {
-            // Initialize if not already done
             if (!this.isInitialized) {
                 this.initialize();
             }
 
-            this.largeEntityMembers.clear();
-            const largeEntityMap = new Map();
+            this.initialTargetIds = new Set(graphData.initial_targets || []);
+            const hasData = graphData.nodes.length > 0 || graphData.edges.length > 0;
             
-            graphData.nodes.forEach(node => {
-                if (node.type === 'large_entity' && node.attributes) {
-                    // UPDATED: Handle unified data model - look for 'nodes' attribute in the attributes list
-                    const nodesAttribute = this.findAttributeByName(node.attributes, 'nodes');
-                    if (nodesAttribute && Array.isArray(nodesAttribute.value)) {
-                        nodesAttribute.value.forEach(nodeId => {
-                            largeEntityMap.set(nodeId, node.id);
-                            this.largeEntityMembers.add(nodeId);
-                        });
+            const placeholder = this.container.querySelector('.graph-placeholder');
+            if (placeholder) {
+                placeholder.style.display = hasData ? 'none' : 'flex';
             }
-                }
-            });
-
-            const filteredNodes = graphData.nodes.filter(node => {
-                // Only include nodes that are NOT members of large entities, but always include the container itself
-                return !this.largeEntityMembers.has(node.id) || node.type === 'large_entity';
-            });
-
-            console.log(`Filtered ${graphData.nodes.length - filteredNodes.length} large entity member nodes from visualization`);
-
-            // Process only the filtered nodes
-            const processedNodes = filteredNodes.map(node => {
-                return this.processNode(node);
-            });
-
-            const mergedEdges = {};
-            graphData.edges.forEach(edge => {
-                const fromNode = largeEntityMap.has(edge.from) ? largeEntityMap.get(edge.from) : edge.from;
-                const toNode = largeEntityMap.has(edge.to) ? largeEntityMap.get(edge.to) : edge.to;
-                const mergeKey = `${fromNode}-${toNode}-${edge.label}`;
-
-                if (!mergedEdges[mergeKey]) {
-                    mergedEdges[mergeKey] = {
-                        ...edge,
-                        from: fromNode,
-                        to: toNode,
-                        count: 0,
-                        confidence_score: 0
-                    };
+            if (!hasData) {
+                this.nodes.clear();
+                this.edges.clear();
+                return;
             }
 
-                mergedEdges[mergeKey].count++;
-                if (edge.confidence_score > mergedEdges[mergeKey].confidence_score) {
-                    mergedEdges[mergeKey].confidence_score = edge.confidence_score;
-                }
-            });
+            const nodeMap = new Map(graphData.nodes.map(node => [node.id, node]));
 
-            const processedEdges = Object.values(mergedEdges).map(edge => {
-                const processed = this.processEdge(edge);
-                if (edge.count > 1) {
-                    processed.label = `${edge.label} (${edge.count})`;
+            // Filter out hidden nodes before processing for rendering
+            const filteredNodes = graphData.nodes.filter(node => 
+                !(node.metadata && node.metadata.large_entity_id)
+            );
+
+            const processedNodes = graphData.nodes.map(node => {
+                const processed = this.processNode(node);
+                if (node.metadata && node.metadata.large_entity_id) {
+                    processed.hidden = true;
                 }
                 return processed;
             });
             
-            // Update datasets with animation
+            const processedEdges = graphData.edges.map(edge => {
+                let fromNode = nodeMap.get(edge.from);
+                let toNode = nodeMap.get(edge.to);
+                let fromId = edge.from;
+                let toId = edge.to;
+
+                if (fromNode && fromNode.metadata && fromNode.metadata.large_entity_id) {
+                    fromId = fromNode.metadata.large_entity_id;
+                }
+                if (toNode && toNode.metadata && toNode.metadata.large_entity_id) {
+                    toId = toNode.metadata.large_entity_id;
+                }
+                
+                // Avoid self-referencing edges from re-routing
+                if (fromId === toId) {
+                    return null; 
+                }
+
+                const reRoutedEdge = { ...edge, from: fromId, to: toId };
+                return this.processEdge(reRoutedEdge);
+            }).filter(Boolean); // Remove nulls from self-referencing edges
+
             const existingNodeIds = this.nodes.getIds();
             const existingEdgeIds = this.edges.getIds();
 
-            // Add new nodes with fade-in animation
             const newNodes = processedNodes.filter(node => !existingNodeIds.includes(node.id));
             const newEdges = processedEdges.filter(edge => !existingEdgeIds.includes(edge.id));
 
-            // Update existing data
             this.nodes.update(processedNodes);
             this.edges.update(processedEdges);
             
-            // After data is loaded, apply filters
             this.updateFilterControls();
             this.applyAllFilters();
 
-            // Highlight new additions briefly
             if (newNodes.length > 0 || newEdges.length > 0) {
                 setTimeout(() => this.highlightNewElements(newNodes, newEdges), 100);
             }
 
-            // Auto-fit view for small graphs or first update
-            if (processedNodes.length <= 10 || existingNodeIds.length === 0) {
+            if (this.nodes.length <= 10 || existingNodeIds.length === 0) {
                 setTimeout(() => this.fitView(), 800);
             }
             
-            console.log(`Graph updated: ${processedNodes.length} nodes, ${processedEdges.length} edges (${newNodes.length} new nodes, ${newEdges.length} new edges)`);
-            console.log(`Large entity members hidden: ${this.largeEntityMembers.size}`);
-            
         } catch (error) {
             console.error('Failed to update graph:', error);
             this.showError('Failed to update visualization');
         }
     }
 
+    analyzeCertificateInfo(attributes) {
+        let hasCertificates = false;
+        let hasValidCertificates = false;
+        let hasExpiredCertificates = false;
+        
+        for (const attr of attributes) {
+            const attrName = (attr.name || '').toLowerCase();
+            const attrProvider = (attr.provider || '').toLowerCase();
+            const attrValue = attr.value;
+            
+            // Look for certificate attributes from crtsh provider
+            if (attrProvider === 'crtsh' || attrName.startsWith('cert_')) {
+                hasCertificates = true;
+                
+                // Check certificate validity using raw attribute names
+                if (attrName === 'cert_is_currently_valid') {
+                    if (attrValue === true) {
+                        hasValidCertificates = true;
+                    } else if (attrValue === false) {
+                        hasExpiredCertificates = true;
+                    }
+                }
+                // Check for expiry indicators
+                else if (attrName === 'cert_expires_soon' && attrValue === true) {
+                    hasExpiredCertificates = true;
+                }
+                else if (attrName.includes('expired') && attrValue === true) {
+                    hasExpiredCertificates = true;
+                }
+            }
+        }
+        
+        return {
+            hasCertificates,
+            hasValidCertificates,
+            hasExpiredCertificates,
+            hasExpiredOnly: hasExpiredCertificates && !hasValidCertificates
+        };
+    }
+
     /**
      * UPDATED: Helper method to find an attribute by name in the standardized attributes list
      * @param {Array} attributes - List of StandardAttribute objects
@@ -496,7 +509,7 @@ class GraphManager {
             size: this.getNodeSize(node.type),
             borderColor: this.getNodeBorderColor(node.type),
             shape: this.getNodeShape(node.type),
-            attributes: node.attributes || [], // Keep as standardized attributes list
+            attributes: node.attributes || [],
             description: node.description || '',
             metadata: node.metadata || {},
             type: node.type,
@@ -504,30 +517,41 @@ class GraphManager {
             outgoing_edges: node.outgoing_edges || []
         };
 
+        if (node.max_depth_reached) {
+            processedNode.borderColor = '#ff0000'; // Red border for max depth
+        }
+
+
         // Add confidence-based styling
         if (node.confidence) {
             processedNode.borderWidth = Math.max(2, Math.floor(node.confidence * 5));
         }
         
-        // Handle merged correlation objects (similar to large entities)
-        if (node.type === 'correlation_object') {
-            const metadata = node.metadata || {};
-            const values = metadata.values || [];
-            const mergeCount = metadata.merge_count || 1;
+        // FIXED: Certificate-based domain coloring
+        if (node.type === 'domain' && Array.isArray(node.attributes)) {
+            const certInfo = this.analyzeCertificateInfo(node.attributes);
             
-            if (mergeCount > 1) {
-                // Display as merged correlation container
-                processedNode.label = `Correlations (${mergeCount})`;
-                processedNode.title = `Merged correlation container with ${mergeCount} values: ${values.slice(0, 3).join(', ')}${values.length > 3 ? '...' : ''}`;
-                processedNode.borderWidth = 3; // Thicker border for merged nodes
-            } else {
-                // Single correlation value
-                const value = Array.isArray(values) && values.length > 0 ? values[0] : (metadata.value || 'Unknown');
+            if (certInfo.hasExpiredOnly) {
+                // Red for domains with only expired/invalid certificates
+                processedNode.color = '#ff6b6b';
+                processedNode.borderColor = '#cc5555';
+            } else if (!certInfo.hasCertificates) {
+                // Grey for domains with no certificates
+                processedNode.color = '#c7c7c7';
+                processedNode.borderColor = '#999999';
+            }
+            // Green for valid certificates (default color)
+        }
+        
+        // Handle merged correlation objects
+        if (node.type === 'correlation_object') {
+            const correlationValueAttr = this.findAttributeByName(node.attributes, 'correlation_value');
+            const value = correlationValueAttr ? correlationValueAttr.value : 'Unknown';
             const displayValue = typeof value === 'string' && value.length > 20 ? value.substring(0, 17) + '...' : value;
+
             processedNode.label = `${displayValue}`;
             processedNode.title = `Correlation: ${value}`;
         }
-        }
 
         return processedNode;
     }
@@ -540,7 +564,7 @@ class GraphManager {
     processEdge(edge) {
         const confidence = edge.confidence_score || 0;
         const processedEdge = {
-            id: `${edge.from}-${edge.to}`,
+            id: `${edge.from}-${edge.to}-${edge.label}`,
             from: edge.from,
             to: edge.to,
             label: this.formatEdgeLabel(edge.label, confidence),
@@ -595,7 +619,8 @@ class GraphManager {
         const colors = {
             'domain': '#00ff41',     // Green
             'ip': '#ff9900',         // Amber
-            'asn': '#00aaff',         // Blue
+            'isp': '#00aaff',         // Blue
+            'ca': '#ff6b6b', // Red
             'large_entity': '#ff6b6b', // Red for large entities
             'correlation_object': '#9620c0ff'
         };
@@ -611,7 +636,8 @@ class GraphManager {
         const borderColors = {
             'domain': '#00aa2e',
             'ip': '#cc7700',
-            'asn': '#0088cc',
+            'isp': '#0088cc',
+            'ca': '#cc5555',
             'correlation_object': '#c235c9ff'
         };
         return borderColors[nodeType] || '#666666';
@@ -626,9 +652,10 @@ class GraphManager {
         const sizes = {
             'domain': 12,
             'ip': 14,
-            'asn': 16,
+            'isp': 16,
+            'ca': 16,
             'correlation_object': 8,
-            'large_entity': 5
+            'large_entity': 25
         };
         return sizes[nodeType] || 12;
     }
@@ -642,9 +669,10 @@ class GraphManager {
         const shapes = {
             'domain': 'dot',
             'ip': 'square',
-            'asn': 'triangle',
+            'isp': 'triangle',
+            'ca': 'diamond',
             'correlation_object': 'hexagon',
-            'large_entity': 'database'
+            'large_entity': 'dot'
         };
         return shapes[nodeType] || 'dot';
     }
@@ -900,15 +928,6 @@ class GraphManager {
         }, 2000);
     }
 
-    /**
-     * Update stabilization progress
-     * @param {number} progress - Progress value (0-1)
-     */
-    updateStabilizationProgress(progress) {
-        // Could show a progress indicator if needed
-        console.log(`Graph stabilization: ${(progress * 100).toFixed(1)}%`);
-    }
-
     /**
      * Handle stabilization completion
      */
@@ -992,8 +1011,8 @@ class GraphManager {
         this.nodes.clear();
         this.edges.clear();
         this.history = [];
-        this.largeEntityMembers.clear(); // Clear large entity tracking
-        this.clearInitialTargets();
+        this.largeEntityMembers.clear();
+        this.initialTargetIds.clear();
 
         // Show placeholder
         const placeholder = this.container.querySelector('.graph-placeholder');
@@ -1096,11 +1115,11 @@ class GraphManager {
             adjacencyList
         );
 
-        console.log(`Reachability analysis complete:`, {
+        /*console.log(`Reachability analysis complete:`, {
             reachable: analysis.reachableNodes.size,
             unreachable: analysis.unreachableNodes.size,
             clusters: analysis.isolatedClusters.length
-        });
+        });*/
 
         return analysis;
     }
@@ -1150,7 +1169,6 @@ class GraphManager {
         const basicStats = {
             nodeCount: this.nodes.length,
             edgeCount: this.edges.length,
-            largeEntityMembersHidden: this.largeEntityMembers.size
         };
 
         // Add forensic statistics
@@ -1168,16 +1186,6 @@ class GraphManager {
         };
     }
     
-    addInitialTarget(targetId) {
-        this.initialTargetIds.add(targetId);
-        console.log("Initial targets:", this.initialTargetIds);
-    }
-
-    clearInitialTargets() {
-        this.initialTargetIds.clear();
-        console.log("Initial targets cleared.");
-    }
-    
     updateFilterControls() {
         if (!this.filterPanel) return;
         const nodeTypes = new Set(this.nodes.get().map(n => n.type));
@@ -1215,7 +1223,6 @@ class GraphManager {
      * Replaces the existing applyAllFilters() method
      */
     applyAllFilters() {
-        console.log("Applying filters with enhanced reachability analysis...");
         if (this.nodes.length === 0) return;
 
         // Get filter criteria from UI
@@ -1272,22 +1279,10 @@ class GraphManager {
             timestamp: Date.now()
         };
         
-        // Apply hiding with forensic documentation
-        const updates = nodesToHide.map(id => ({ 
-            id: id, 
-            hidden: true,
-            forensicNote: `Hidden due to reachability analysis from ${nodeId}`
-        }));
-        
+        const updates = nodesToHide.map(id => ({ id: id, hidden: true }));
         this.nodes.update(updates);
         this.addToHistory('hide', historyData);
 
-        console.log(`Forensic hide operation: ${nodesToHide.length} nodes hidden`, {
-            originalTarget: nodeId,
-            cascadeNodes: nodesToHide.length - 1,
-            isolatedClusters: analysis.isolatedClusters.length
-        });
-
         return {
             hiddenNodes: nodesToHide,
             isolatedClusters: analysis.isolatedClusters
@@ -1371,8 +1366,6 @@ class GraphManager {
         // Handle operation results
         if (!operationFailed) {
             this.addToHistory('delete', historyData);            
-            console.log(`Forensic delete operation completed:`, historyData.forensicAnalysis);
-            
             return {
                 success: true,
                 deletedNodes: nodesToDelete,
@@ -1463,7 +1456,6 @@ class GraphManager {
                 e.stopPropagation();
                 const action = e.currentTarget.dataset.action;
                 const nodeId = e.currentTarget.dataset.nodeId;
-                console.log('Context menu action:', action, 'for node:', nodeId);
                 this.performContextMenuAction(action, nodeId);
                 this.hideContextMenu();
             });
@@ -1484,8 +1476,6 @@ class GraphManager {
      * Updates the existing performContextMenuAction() method
      */
     performContextMenuAction(action, nodeId) {        
-        console.log('Performing enhanced action:', action, 'on node:', nodeId);
-        
         switch (action) {
             case 'focus':
                 this.focusOnNode(nodeId);
@@ -1575,14 +1565,43 @@ class GraphManager {
     }
 
     /**
-     * Unhide all hidden nodes
+     * FIXED: Unhide all hidden nodes, excluding large entity members and disconnected nodes.
+     * This prevents orphaned large entity members from appearing as free-floating nodes.
      */
     unhideAll() {
-        const allNodes = this.nodes.get({
-            filter: (node) => node.hidden === true
+        const allHiddenNodes = this.nodes.get({
+            filter: (node) => {
+                // Skip nodes that are part of a large entity
+                if (node.metadata && node.metadata.large_entity_id) {
+                    return false;
+                }
+                
+                // Skip nodes that are not hidden
+                if (node.hidden !== true) {
+                    return false;
+                }
+                
+                // Skip nodes that have no edges (would appear disconnected)
+                const nodeId = node.id;
+                const hasIncomingEdges = this.edges.get().some(edge => edge.to === nodeId && !edge.hidden);
+                const hasOutgoingEdges = this.edges.get().some(edge => edge.from === nodeId && !edge.hidden);
+                
+                if (!hasIncomingEdges && !hasOutgoingEdges) {
+                    console.log(`Skipping disconnected node ${nodeId} from unhide`);
+                    return false;
+                }
+                
+                return true;
+            }
         });
-        const updates = allNodes.map(node => ({ id: node.id, hidden: false }));
+        
+        if (allHiddenNodes.length > 0) {
+            console.log(`Unhiding ${allHiddenNodes.length} nodes with valid connections`);
+            const updates = allHiddenNodes.map(node => ({ id: node.id, hidden: false }));
             this.nodes.update(updates);
+        } else {
+            console.log('No eligible nodes to unhide');
+        }
     }
     
 }

templates/index.html

@@ -1,14 +1,19 @@
 <!DOCTYPE html>
 <html lang="en">
+
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>DNSRecon - Infrastructure Reconnaissance</title>
     <link rel="stylesheet" href="{{ url_for('static', filename='css/main.css') }}">
     <script src="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/4.7.2/socket.io.js"></script>
     <link href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.css" rel="stylesheet" type="text/css">
-    <link href="https://fonts.googleapis.com/css2?family=Roboto+Mono:wght@300;400;500;700&family=Special+Elite&display=swap" rel="stylesheet">
+    <link
+        href="https://fonts.googleapis.com/css2?family=Roboto+Mono:wght@300;400;500;700&family=Special+Elite&display=swap"
+        rel="stylesheet">
 </head>
+
 <body>
     <div class="container">
         <header class="header">
@@ -49,9 +54,9 @@
                             <span class="btn-icon">[STOP]</span>
                             <span>Terminate Scan</span>
                         </button>
-                        <button id="export-results" class="btn btn-secondary">
+                        <button id="export-options" class="btn btn-secondary">
                             <span class="btn-icon">[EXPORT]</span>
-                            <span>Download Results</span>
+                            <span>Export Options</span>
                         </button>
                         <button id="configure-settings" class="btn btn-secondary">
                             <span class="btn-icon">[API]</span>
@@ -95,11 +100,13 @@
                     </div>
                     <div class="progress-placeholder">
                         <span class="status-label">
-                            ⚠️ <strong>Important:</strong> Scanning large public services (e.g., Google, Cloudflare, AWS) is
+                            ⚠️ <strong>Important:</strong> Scanning large public services (e.g., Google, Cloudflare,
+                            AWS) is
                             <strong>discouraged</strong> due to rate limits (e.g., crt.sh).
                             <br><br>
                             Our task scheduler operates on a <strong>priority-based queue</strong>:
-                            Short, targeted tasks like DNS are processed first, while resource-intensive requests (e.g., crt.sh)
+                            Short, targeted tasks like DNS are processed first, while resource-intensive requests (e.g.,
+                            crt.sh)
                             are <strong>automatically deprioritized</strong> and may be processed later.
                         </span>
                     </div>
@@ -114,9 +121,10 @@
                 <div id="network-graph" class="graph-container">
                     <div class="graph-placeholder">
                         <div class="placeholder-content">
-                            <div class="placeholder-icon">[○]</div>
+                            <div class="placeholder-icon">[◯]</div>
                             <div class="placeholder-text">Infrastructure map will appear here</div>
-                            <div class="placeholder-subtext">Start a reconnaissance scan to visualize relationships</div>
+                            <div class="placeholder-subtext">Start a reconnaissance scan to visualize relationships
+                            </div>
                         </div>
                     </div>
                 </div>
@@ -126,29 +134,30 @@
                         <div class="legend-color" style="background-color: #00ff41;"></div>
                         <span>Domains</span>
                     </div>
+                    <div class="legend-item">
+                        <div class="legend-color" style="background-color: #c92f2f;"></div>
+                        <span>Domain (no valid cert)</span>
+                    </div>
+                    <div class="legend-item">
+                        <div class="legend-color" style="background-color: #c7c7c7;"></div>
+                        <span>Domain (never had cert)</span>
+                    </div>
                     <div class="legend-item">
                         <div class="legend-color" style="background-color: #ff9900;"></div>
                         <span>IP Addresses</span>
                     </div>
                     <div class="legend-item">
-                        <div class="legend-color" style="background-color: #c7c7c7;"></div>
-                        <span>Domain (invalid cert)</span>
-                    </div>
-                    <div class="legend-item">
-                        <div class="legend-color" style="background-color: #9d4edd;"></div>
-                        <span>Correlation Objects</span>
-                    </div>
-                    <div class="legend-item">
-                        <div class="legend-edge high-confidence"></div>
-                        <span>High Confidence</span>
-                    </div>
-                    <div class="legend-item">
-                        <div class="legend-edge medium-confidence"></div>
-                        <span>Medium Confidence</span>
+                        <div class="legend-color" style="background-color: #00aaff;"></div>
+                        <span>ISPs</span>
                     </div>
                     <div class="legend-item">
                         <div class="legend-color" style="background-color: #ff6b6b;"></div>
-                        <span>Large Entity</span>
+                        <span>Certificate Authorities</span>
+                    </div>
+
+                    <div class="legend-item">
+                        <div class="legend-color" style="background-color: #9d4edd;"></div>
+                        <span>Correlation Objects</span>
                     </div>
                 </div>
             </section>
@@ -189,15 +198,17 @@
         <div id="settings-modal" class="modal">
             <div class="modal-content">
                 <div class="modal-header">
-                    <h3>Settings</h3>
+                    <h3>Scanner Configuration</h3>
                     <button id="settings-modal-close" class="modal-close">[×]</button>
                 </div>
                 <div class="modal-body">
-                    <p class="modal-description">
-                        Configure scan settings and API keys. Keys are stored in memory for the current session only.
-                        Only provide API-keys you dont use for anything else. Don´t enter an API-key if you don´t trust me (best practice would that you don´t).
-                    </p>
-                    <br>
+                    <div class="modal-details">
+                        <section class="modal-section">
+                            <details open>
+                                <summary>
+                                    <span>⚙️ Scan Settings</span>
+                                </summary>
+                                <div class="modal-section-content">
                                     <div class="input-group">
                                         <label for="max-depth">Recursion Depth</label>
                                         <select id="max-depth">
@@ -208,14 +219,48 @@
                                             <option value="5">Depth 5 - Maximum depth</option>
                                         </select>
                                     </div>
+                                </div>
+                            </details>
+                        </section>
+
+                        <section class="modal-section">
+                            <details open>
+                                <summary>
+                                    <span>🔧 Provider Configuration</span>
+                                    <span class="merge-badge" id="provider-count">0</span>
+                                </summary>
+                                <div class="modal-section-content">
+                                    <div id="provider-config-list">
+                                        </div>
+                                </div>
+                            </details>
+                        </section>
+
+                        <section class="modal-section">
+                            <details>
+                                <summary>
+                                    <span>🔑 API Keys</span>
+                                    <span class="merge-badge" id="api-key-count">0</span>
+                                </summary>
+                                <div class="modal-section-content">
+                                    <p class="placeholder-subtext" style="margin-bottom: 1rem;">
+                                        ⚠️ API keys are stored in memory for the current session only.
+                                        Only provide API keys you don't use for anything else.
+                                    </p>
                                     <div id="api-key-inputs">
                                         </div>
-                    <div class="button-group" style="flex-direction: row; justify-content: flex-end;">
-                        <button id="reset-api-keys" class="btn btn-secondary">
-                            <span>Reset</span>
+                                </div>
+                            </details>
+                        </section>
+
+                        <div class="button-group" style="margin-top: 1.5rem;">
+                            <button id="save-settings" class="btn btn-primary">
+                                <span class="btn-icon">[SAVE]</span>
+                                <span>Save Configuration</span>
                             </button>
-                        <button id="save-api-keys" class="btn btn-primary">
-                            <span>Save API-Keys</span>
+                            <button id="reset-settings" class="btn btn-secondary">
+                                <span class="btn-icon">[RESET]</span>
+                                <span>Reset to Defaults</span>
                             </button>
                         </div>
                     </div>
@@ -223,19 +268,55 @@
             </div>
         </div>
 
-    <script>
-        function copyToClipboard(elementId) {
-            const element = document.getElementById(elementId);
-            const textToCopy = element.innerText;
-            navigator.clipboard.writeText(textToCopy).then(() => {
-                // Optional: Show a success message
-                console.log('Copied to clipboard');
-            }).catch(err => {
-                console.error('Failed to copy: ', err);
-            });
-        }
-    </script>
+        <div id="export-modal" class="modal">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h3>Export Options</h3>
+                    <button id="export-modal-close" class="modal-close">[×]</button>
+                </div>
+                <div class="modal-body">
+                    <div class="modal-details">
+                        <section class="modal-section">
+                            <details open>
+                                <summary>
+                                    <span>📊 Available Exports</span>
+                                </summary>
+                                <div class="modal-section-content">
+                                    <div class="button-group" style="margin-top: 1rem;">
+                                        <button id="export-graph-json" class="btn btn-primary">
+                                            <span class="btn-icon">[JSON]</span>
+                                            <span>Export Graph Data</span>
+                                        </button>
+                                        <div class="status-row" style="margin-top: 0.5rem;">
+                                            <span class="status-label">Complete graph data with forensic audit trail,
+                                                provider statistics, and scan metadata in JSON format for analysis and
+                                                archival.</span>
+                                        </div>
+                                        <button id="export-targets-txt" class="btn btn-primary" style="margin-top: 1rem;">
+                                            <span class="btn-icon">[TXT]</span>
+                                            <span>Export Targets</span>
+                                        </button>
+                                        <div class="status-row" style="margin-top: 0.5rem;">
+                                            <span class="status-label">A simple text file containing all discovered domains and IP addresses.</span>
+                                        </div>
+                                        <button id="export-executive-summary" class="btn btn-primary" style="margin-top: 1rem;">
+                                            <span class="btn-icon">[TXT]</span>
+                                            <span>Export Executive Summary</span>
+                                        </button>
+                                        <div class="status-row" style="margin-top: 0.5rem;">
+                                            <span class="status-label">A natural-language summary of the scan findings.</span>
+                                        </div>
+                                    </div>
+                                </div>
+                            </details>
+                        </section>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
     <script src="{{ url_for('static', filename='js/graph.js') }}"></script>
     <script src="{{ url_for('static', filename='js/main.js') }}"></script>
 </body>
+
 </html>

utils/__init__.py

@@ -0,0 +1,22 @@
+# dnsrecon-reduced/utils/__init__.py
+
+"""
+Utility modules for DNSRecon.
+Contains helper functions, export management, and supporting utilities.
+"""
+
+from .helpers import is_valid_target, _is_valid_domain, _is_valid_ip, get_ip_version, normalize_ip
+from .export_manager import export_manager, ExportManager, CustomJSONEncoder
+
+__all__ = [
+    'is_valid_target',
+    '_is_valid_domain', 
+    '_is_valid_ip',
+    'get_ip_version',
+    'normalize_ip',
+    'export_manager',
+    'ExportManager',
+    'CustomJSONEncoder'
+]
+
+__version__ = "1.0.0"

utils/export_manager.py

@@ -0,0 +1,849 @@
+# dnsrecon-reduced/utils/export_manager.py
+
+"""
+Centralized export functionality for DNSRecon.
+Handles all data export operations with forensic integrity and proper formatting.
+ENHANCED: Professional forensic executive summary generation for court-ready documentation.
+"""
+
+import json
+from datetime import datetime, timezone
+from typing import Dict, Any, List, Optional, Set, Tuple
+from decimal import Decimal
+from collections import defaultdict, Counter
+import networkx as nx
+
+from utils.helpers import _is_valid_domain, _is_valid_ip
+
+
+class ExportManager:
+    """
+    Centralized manager for all DNSRecon export operations.
+    Maintains forensic integrity and provides consistent export formats.
+    ENHANCED: Advanced forensic analysis and professional reporting capabilities.
+    """
+    
+    def __init__(self):
+        """Initialize export manager."""
+        pass
+    
+    def export_scan_results(self, scanner) -> Dict[str, Any]:
+        """
+        Export complete scan results with forensic metadata.
+        
+        Args:
+            scanner: Scanner instance with completed scan data
+            
+        Returns:
+            Complete scan results dictionary
+        """
+        graph_data = self.export_graph_json(scanner.graph)
+        audit_trail = scanner.logger.export_audit_trail()
+        provider_stats = {}
+        
+        for provider in scanner.providers:
+            provider_stats[provider.get_name()] = provider.get_statistics()
+        
+        results = {
+            'scan_metadata': {
+                'target_domain': scanner.current_target,
+                'max_depth': scanner.max_depth,
+                'final_status': scanner.status,
+                'total_indicators_processed': scanner.indicators_processed,
+                'enabled_providers': list(provider_stats.keys()),
+                'session_id': scanner.session_id
+            },
+            'graph_data': graph_data,
+            'forensic_audit': audit_trail,
+            'provider_statistics': provider_stats,
+            'scan_summary': scanner.logger.get_forensic_summary()
+        }
+        
+        # Add export metadata
+        results['export_metadata'] = {
+            'export_timestamp': datetime.now(timezone.utc).isoformat(),
+            'export_version': '1.0.0',
+            'forensic_integrity': 'maintained'
+        }
+        
+        return results
+    
+    def export_targets_list(self, scanner) -> str:
+        """
+        Export all discovered domains and IPs as a text file.
+        
+        Args:
+            scanner: Scanner instance with graph data
+            
+        Returns:
+            Newline-separated list of targets
+        """
+        nodes = scanner.graph.get_graph_data().get('nodes', [])
+        targets = {
+            node['id'] for node in nodes 
+            if _is_valid_domain(node['id']) or _is_valid_ip(node['id'])
+        }
+        return "\n".join(sorted(list(targets)))
+    
+    def generate_executive_summary(self, scanner) -> str:
+        """
+        ENHANCED: Generate a comprehensive, court-ready forensic executive summary.
+        
+        Args:
+            scanner: Scanner instance with completed scan data
+            
+        Returns:
+            Professional forensic summary formatted for investigative use
+        """
+        report = []
+        now = datetime.now(timezone.utc).strftime('%Y-%m-%d %H:%M:%S UTC')
+        
+        # Get comprehensive data for analysis
+        graph_data = scanner.graph.get_graph_data()
+        nodes = graph_data.get('nodes', [])
+        edges = graph_data.get('edges', [])
+        audit_trail = scanner.logger.export_audit_trail()
+        
+        # Perform advanced analysis
+        infrastructure_analysis = self._analyze_infrastructure_patterns(nodes, edges)
+        
+        # === HEADER AND METADATA ===
+        report.extend([
+            "=" * 80,
+            "DIGITAL INFRASTRUCTURE RECONNAISSANCE REPORT",
+            "=" * 80,
+            "",
+            f"Report Generated: {now}",
+            f"Investigation Target: {scanner.current_target}",
+            f"Analysis Session: {scanner.session_id}",
+            f"Scan Depth: {scanner.max_depth} levels",
+            f"Final Status: {scanner.status.upper()}",
+            ""
+        ])
+        
+        # === EXECUTIVE SUMMARY ===
+        report.extend([
+            "EXECUTIVE SUMMARY",
+            "-" * 40,
+            "",
+            f"This report presents the findings of a comprehensive passive reconnaissance analysis "
+            f"conducted against the target '{scanner.current_target}'. The investigation employed "
+            f"multiple intelligence sources and discovered {len(nodes)} distinct digital entities "
+            f"connected through {len(edges)} verified relationships.",
+            "",
+            f"The analysis reveals a digital infrastructure comprising {infrastructure_analysis['domains']} "
+            f"domain names, {infrastructure_analysis['ips']} IP addresses, and {infrastructure_analysis['isps']} "
+            f"infrastructure service providers. Certificate transparency analysis identified "
+            f"{infrastructure_analysis['cas']} certificate authorities managing the cryptographic "
+            f"infrastructure for the investigated entities.",
+            "",
+        ])
+        
+        # === METHODOLOGY ===
+        report.extend([
+            "INVESTIGATIVE METHODOLOGY",
+            "-" * 40,
+            "",
+            "This analysis employed passive reconnaissance techniques using the following verified data sources:",
+            ""
+        ])
+        
+        provider_info = {
+            'dns': 'Standard DNS resolution and reverse DNS lookups',
+            'crtsh': 'Certificate Transparency database analysis via crt.sh',
+            'shodan': 'Internet-connected device intelligence via Shodan API'
+        }
+        
+        for provider in scanner.providers:
+            provider_name = provider.get_name()
+            stats = provider.get_statistics()
+            description = provider_info.get(provider_name, f'{provider_name} data provider')
+            
+            report.extend([
+                f"• {provider.get_display_name()}: {description}",
+                f"  - Total Requests: {stats['total_requests']}",
+                f"  - Success Rate: {stats['success_rate']:.1f}%",
+                f"  - Relationships Discovered: {stats['relationships_found']}",
+                ""
+            ])
+        
+        # === INFRASTRUCTURE ANALYSIS ===
+        report.extend([
+            "INFRASTRUCTURE ANALYSIS",
+            "-" * 40,
+            ""
+        ])
+        
+        # Domain Analysis
+        if infrastructure_analysis['domains'] > 0:
+            report.extend([
+                f"Domain Name Infrastructure ({infrastructure_analysis['domains']} entities):",
+                ""
+            ])
+            
+            domain_details = self._get_detailed_domain_analysis(nodes, edges)
+            for domain_info in domain_details[:10]:  # Top 10 domains
+                report.extend([
+                    f"• {domain_info['domain']}",
+                    f"  - Type: {domain_info['classification']}",
+                    f"  - Connected IPs: {len(domain_info['ips'])}",
+                    f"  - Certificate Status: {domain_info['cert_status']}",
+                    f"  - Relationship Confidence: {domain_info['avg_confidence']:.2f}",
+                ])
+                
+                if domain_info['security_notes']:
+                    report.extend([
+                        f"  - Security Notes: {', '.join(domain_info['security_notes'])}",
+                    ])
+                report.append("")
+        
+        # IP Address Analysis
+        if infrastructure_analysis['ips'] > 0:
+            report.extend([
+                f"IP Address Infrastructure ({infrastructure_analysis['ips']} entities):",
+                ""
+            ])
+            
+            ip_details = self._get_detailed_ip_analysis(nodes, edges)
+            for ip_info in ip_details[:8]:  # Top 8 IPs
+                report.extend([
+                    f"• {ip_info['ip']} ({ip_info['version']})",
+                    f"  - Associated Domains: {len(ip_info['domains'])}",
+                    f"  - ISP: {ip_info['isp'] or 'Unknown'}",
+                    f"  - Geographic Location: {ip_info['location'] or 'Not determined'}",
+                ])
+                
+                if ip_info['open_ports']:
+                    report.extend([
+                        f"  - Exposed Services: {', '.join(map(str, ip_info['open_ports'][:5]))}"
+                        + (f" (and {len(ip_info['open_ports']) - 5} more)" if len(ip_info['open_ports']) > 5 else ""),
+                    ])
+                report.append("")
+        
+        # === RELATIONSHIP ANALYSIS ===
+        report.extend([
+            "ENTITY RELATIONSHIP ANALYSIS",
+            "-" * 40,
+            ""
+        ])
+        
+        # Network topology insights
+        topology = self._analyze_network_topology(nodes, edges)
+        report.extend([
+            f"Network Topology Assessment:",
+            f"• Central Hubs: {len(topology['hubs'])} entities serve as primary connection points",
+            f"• Isolated Clusters: {len(topology['clusters'])} distinct groupings identified",
+            f"• Relationship Density: {topology['density']:.3f} (0=sparse, 1=fully connected)",
+            f"• Average Path Length: {topology['avg_path_length']:.2f} degrees of separation",
+            ""
+        ])
+        
+        # Key relationships
+        key_relationships = self._identify_key_relationships(edges)
+        if key_relationships:
+            report.extend([
+                "Critical Infrastructure Relationships:",
+                ""
+            ])
+            
+            for rel in key_relationships[:8]:  # Top 8 relationships
+                confidence_desc = self._describe_confidence(rel['confidence'])
+                report.extend([
+                    f"• {rel['source']} → {rel['target']}",
+                    f"  - Relationship: {self._humanize_relationship_type(rel['type'])}",
+                    f"  - Evidence Strength: {confidence_desc} ({rel['confidence']:.2f})",
+                    f"  - Discovery Method: {rel['provider']}",
+                    ""
+                ])
+        
+        # === CERTIFICATE ANALYSIS ===
+        cert_analysis = self._analyze_certificate_infrastructure(nodes)
+        if cert_analysis['total_certs'] > 0:
+            report.extend([
+                "CERTIFICATE INFRASTRUCTURE ANALYSIS",
+                "-" * 40,
+                "",
+                f"Certificate Status Overview:",
+                f"• Total Certificates Analyzed: {cert_analysis['total_certs']}",
+                f"• Valid Certificates: {cert_analysis['valid']}",
+                f"• Expired/Invalid: {cert_analysis['expired']}",
+                f"• Certificate Authorities: {len(cert_analysis['cas'])}",
+                ""
+            ])
+            
+            if cert_analysis['cas']:
+                report.extend([
+                    "Certificate Authority Distribution:",
+                    ""
+                ])
+                for ca, count in cert_analysis['cas'].most_common(5):
+                    report.extend([
+                        f"• {ca}: {count} certificate(s)",
+                    ])
+                report.append("")
+        
+        
+        # === TECHNICAL APPENDIX ===
+        report.extend([
+            "TECHNICAL APPENDIX",
+            "-" * 40,
+            "",
+            "Data Quality Assessment:",
+            f"• Total API Requests: {audit_trail.get('session_metadata', {}).get('total_requests', 0)}",
+            f"• Data Providers Used: {len(audit_trail.get('session_metadata', {}).get('providers_used', []))}",
+            f"• Relationship Confidence Distribution:",
+        ])
+        
+        # Confidence distribution
+        confidence_dist = self._calculate_confidence_distribution(edges)
+        for level, count in confidence_dist.items():
+            percentage = (count / len(edges) * 100) if edges else 0
+            report.extend([
+                f"  - {level.title()} Confidence (≥{self._get_confidence_threshold(level)}): {count} ({percentage:.1f}%)",
+            ])
+        
+        report.extend([
+            "",
+            "Correlation Analysis:",
+            f"• Entity Correlations Identified: {len(scanner.graph.correlation_index)}",
+            f"• Cross-Reference Validation: {self._count_cross_validated_relationships(edges)} relationships verified by multiple sources",
+            ""
+        ])
+        
+        # === CONCLUSION ===
+        report.extend([
+            "CONCLUSION",
+            "-" * 40,
+            "",
+            self._generate_conclusion(scanner.current_target, infrastructure_analysis, 
+                                    len(edges)),
+            "",
+            "This analysis was conducted using passive reconnaissance techniques and represents "
+            "the digital infrastructure observable through public data sources at the time of investigation. "
+            "All findings are supported by verifiable technical evidence and documented through "
+            "a complete audit trail maintained for forensic integrity.",
+            "",
+            f"Investigation completed: {now}",
+            f"Report authenticated by: DNSRecon v{self._get_version()}",
+            "",
+            "=" * 80,
+            "END OF REPORT",
+            "=" * 80
+        ])
+        
+        return "\n".join(report)
+    
+    def _analyze_infrastructure_patterns(self, nodes: List[Dict], edges: List[Dict]) -> Dict[str, Any]:
+        """Analyze infrastructure patterns and classify entities."""
+        analysis = {
+            'domains': len([n for n in nodes if n['type'] == 'domain']),
+            'ips': len([n for n in nodes if n['type'] == 'ip']),
+            'isps': len([n for n in nodes if n['type'] == 'isp']),
+            'cas': len([n for n in nodes if n['type'] == 'ca']),
+            'correlations': len([n for n in nodes if n['type'] == 'correlation_object'])
+        }
+        return analysis
+    
+    def _get_detailed_domain_analysis(self, nodes: List[Dict], edges: List[Dict]) -> List[Dict[str, Any]]:
+        """Generate detailed analysis for each domain."""
+        domain_nodes = [n for n in nodes if n['type'] == 'domain']
+        domain_analysis = []
+        
+        for domain in domain_nodes:
+            # Find connected IPs
+            connected_ips = [e['to'] for e in edges 
+                           if e['from'] == domain['id'] and _is_valid_ip(e['to'])]
+            
+            # Determine classification
+            classification = "Primary Domain"
+            if domain['id'].startswith('www.'):
+                classification = "Web Interface"
+            elif any(subdomain in domain['id'] for subdomain in ['api.', 'mail.', 'smtp.']):
+                classification = "Service Endpoint"
+            elif domain['id'].count('.') > 1:
+                classification = "Subdomain"
+            
+            # Certificate status
+            cert_status = self._determine_certificate_status(domain)
+            
+            # Security notes
+            security_notes = []
+            if cert_status == "Expired/Invalid":
+                security_notes.append("Certificate validation issues")
+            if len(connected_ips) == 0:
+                security_notes.append("No IP resolution found")
+            if len(connected_ips) > 5:
+                security_notes.append("Multiple IP endpoints")
+            
+            # Average confidence
+            domain_edges = [e for e in edges if e['from'] == domain['id']]
+            avg_confidence = sum(e['confidence_score'] for e in domain_edges) / len(domain_edges) if domain_edges else 0
+            
+            domain_analysis.append({
+                'domain': domain['id'],
+                'classification': classification,
+                'ips': connected_ips,
+                'cert_status': cert_status,
+                'security_notes': security_notes,
+                'avg_confidence': avg_confidence
+            })
+        
+        # Sort by number of connections (most connected first)
+        return sorted(domain_analysis, key=lambda x: len(x['ips']), reverse=True)
+    
+    def _get_detailed_ip_analysis(self, nodes: List[Dict], edges: List[Dict]) -> List[Dict[str, Any]]:
+        """Generate detailed analysis for each IP address."""
+        ip_nodes = [n for n in nodes if n['type'] == 'ip']
+        ip_analysis = []
+        
+        for ip in ip_nodes:
+            # Find connected domains
+            connected_domains = [e['from'] for e in edges 
+                               if e['to'] == ip['id'] and _is_valid_domain(e['from'])]
+            
+            # Extract metadata from attributes
+            ip_version = "IPv4"
+            location = None
+            isp = None
+            open_ports = []
+            
+            for attr in ip.get('attributes', []):
+                if attr.get('name') == 'country':
+                    location = attr.get('value')
+                elif attr.get('name') == 'org':
+                    isp = attr.get('value')
+                elif attr.get('name') == 'shodan_open_port':
+                    open_ports.append(attr.get('value'))
+                elif 'ipv6' in str(attr.get('metadata', {})).lower():
+                    ip_version = "IPv6"
+            
+            # Find ISP from relationships
+            if not isp:
+                isp_edges = [e for e in edges if e['from'] == ip['id'] and e['label'].endswith('_isp')]
+                isp = isp_edges[0]['to'] if isp_edges else None
+            
+            ip_analysis.append({
+                'ip': ip['id'],
+                'version': ip_version,
+                'domains': connected_domains,
+                'isp': isp,
+                'location': location,
+                'open_ports': open_ports
+            })
+        
+        # Sort by number of connected domains
+        return sorted(ip_analysis, key=lambda x: len(x['domains']), reverse=True)
+    
+    def _analyze_network_topology(self, nodes: List[Dict], edges: List[Dict]) -> Dict[str, Any]:
+        """Analyze network topology and identify key structural patterns."""
+        if not nodes or not edges:
+            return {'hubs': [], 'clusters': [], 'density': 0, 'avg_path_length': 0}
+        
+        # Create NetworkX graph
+        G = nx.DiGraph()
+        for node in nodes:
+            G.add_node(node['id'])
+        for edge in edges:
+            G.add_edge(edge['from'], edge['to'])
+        
+        # Convert to undirected for certain analyses
+        G_undirected = G.to_undirected()
+        
+        # Identify hubs (nodes with high degree centrality)
+        centrality = nx.degree_centrality(G_undirected)
+        hub_threshold = max(centrality.values()) * 0.7 if centrality else 0
+        hubs = [node for node, cent in centrality.items() if cent >= hub_threshold]
+        
+        # Find connected components (clusters)
+        clusters = list(nx.connected_components(G_undirected))
+        
+        # Calculate density
+        density = nx.density(G_undirected)
+        
+        # Calculate average path length (for largest component)
+        if G_undirected.number_of_nodes() > 1:
+            largest_cc = max(nx.connected_components(G_undirected), key=len)
+            subgraph = G_undirected.subgraph(largest_cc)
+            try:
+                avg_path_length = nx.average_shortest_path_length(subgraph)
+            except:
+                avg_path_length = 0
+        else:
+            avg_path_length = 0
+        
+        return {
+            'hubs': hubs,
+            'clusters': clusters,
+            'density': density,
+            'avg_path_length': avg_path_length
+        }
+    
+    def _identify_key_relationships(self, edges: List[Dict]) -> List[Dict[str, Any]]:
+        """Identify the most significant relationships in the infrastructure."""
+        # Score relationships by confidence and type importance
+        relationship_importance = {
+            'dns_a_record': 0.9,
+            'dns_aaaa_record': 0.9,
+            'crtsh_cert_issuer': 0.8,
+            'shodan_isp': 0.8,
+            'crtsh_san_certificate': 0.7,
+            'dns_mx_record': 0.7,
+            'dns_ns_record': 0.7
+        }
+        
+        scored_edges = []
+        for edge in edges:
+            base_confidence = edge.get('confidence_score', 0)
+            type_weight = relationship_importance.get(edge.get('label', ''), 0.5)
+            combined_score = (base_confidence * 0.7) + (type_weight * 0.3)
+            
+            scored_edges.append({
+                'source': edge['from'],
+                'target': edge['to'],
+                'type': edge.get('label', ''),
+                'confidence': base_confidence,
+                'provider': edge.get('source_provider', ''),
+                'score': combined_score
+            })
+        
+        # Return top relationships by score
+        return sorted(scored_edges, key=lambda x: x['score'], reverse=True)
+    
+    def _analyze_certificate_infrastructure(self, nodes: List[Dict]) -> Dict[str, Any]:
+        """Analyze certificate infrastructure across all domains."""
+        domain_nodes = [n for n in nodes if n['type'] == 'domain']
+        ca_nodes = [n for n in nodes if n['type'] == 'ca']
+        
+        valid_certs = 0
+        expired_certs = 0
+        total_certs = 0
+        cas = Counter()
+        
+        for domain in domain_nodes:
+            for attr in domain.get('attributes', []):
+                if attr.get('name') == 'cert_is_currently_valid':
+                    total_certs += 1
+                    if attr.get('value') is True:
+                        valid_certs += 1
+                    else:
+                        expired_certs += 1
+                elif attr.get('name') == 'cert_issuer_name':
+                    issuer = attr.get('value')
+                    if issuer:
+                        cas[issuer] += 1
+        
+        return {
+            'total_certs': total_certs,
+            'valid': valid_certs,
+            'expired': expired_certs,
+            'cas': cas
+        }
+    
+    def _has_expired_certificates(self, domain_node: Dict) -> bool:
+        """Check if domain has expired certificates."""
+        for attr in domain_node.get('attributes', []):
+            if (attr.get('name') == 'cert_is_currently_valid' and 
+                attr.get('value') is False):
+                return True
+        return False
+    
+    def _determine_certificate_status(self, domain_node: Dict) -> str:
+        """Determine the certificate status for a domain."""
+        has_valid = False
+        has_expired = False
+        has_any = False
+        
+        for attr in domain_node.get('attributes', []):
+            if attr.get('name') == 'cert_is_currently_valid':
+                has_any = True
+                if attr.get('value') is True:
+                    has_valid = True
+                else:
+                    has_expired = True
+        
+        if not has_any:
+            return "No Certificate Data"
+        elif has_valid and not has_expired:
+            return "Valid"
+        elif has_expired and not has_valid:
+            return "Expired/Invalid"
+        else:
+            return "Mixed Status"
+    
+    def _describe_confidence(self, confidence: float) -> str:
+        """Convert confidence score to descriptive text."""
+        if confidence >= 0.9:
+            return "Very High"
+        elif confidence >= 0.8:
+            return "High"
+        elif confidence >= 0.6:
+            return "Medium"
+        elif confidence >= 0.4:
+            return "Low"
+        else:
+            return "Very Low"
+    
+    def _humanize_relationship_type(self, rel_type: str) -> str:
+        """Convert technical relationship types to human-readable descriptions."""
+        type_map = {
+            'dns_a_record': 'DNS A Record Resolution',
+            'dns_aaaa_record': 'DNS AAAA Record (IPv6) Resolution',
+            'dns_mx_record': 'Email Server (MX) Configuration',
+            'dns_ns_record': 'Name Server Delegation',
+            'dns_cname_record': 'DNS Alias (CNAME) Resolution',
+            'crtsh_cert_issuer': 'SSL Certificate Issuer Relationship',
+            'crtsh_san_certificate': 'Shared SSL Certificate',
+            'shodan_isp': 'Internet Service Provider Assignment',
+            'shodan_a_record': 'IP-to-Domain Resolution (Shodan)',
+            'dns_ptr_record': 'Reverse DNS Resolution'
+        }
+        return type_map.get(rel_type, rel_type.replace('_', ' ').title())
+    
+    def _calculate_confidence_distribution(self, edges: List[Dict]) -> Dict[str, int]:
+        """Calculate confidence score distribution."""
+        distribution = {'high': 0, 'medium': 0, 'low': 0}
+        
+        for edge in edges:
+            confidence = edge.get('confidence_score', 0)
+            if confidence >= 0.8:
+                distribution['high'] += 1
+            elif confidence >= 0.6:
+                distribution['medium'] += 1
+            else:
+                distribution['low'] += 1
+        
+        return distribution
+    
+    def _get_confidence_threshold(self, level: str) -> str:
+        """Get confidence threshold for a level."""
+        thresholds = {'high': '0.80', 'medium': '0.60', 'low': '0.00'}
+        return thresholds.get(level, '0.00')
+    
+    def _count_cross_validated_relationships(self, edges: List[Dict]) -> int:
+        """Count relationships verified by multiple providers."""
+        # Group edges by source-target pair
+        edge_pairs = defaultdict(list)
+        for edge in edges:
+            pair_key = f"{edge['from']}->{edge['to']}"
+            edge_pairs[pair_key].append(edge.get('source_provider', ''))
+        
+        # Count pairs with multiple providers
+        cross_validated = 0
+        for pair, providers in edge_pairs.items():
+            if len(set(providers)) > 1:  # Multiple unique providers
+                cross_validated += 1
+        
+        return cross_validated
+    
+    def _generate_security_recommendations(self, infrastructure_analysis: Dict) -> List[str]:
+        """Generate actionable security recommendations."""
+        recommendations = []
+        
+        # Check for complex infrastructure
+        if infrastructure_analysis['ips'] > 10:
+            recommendations.append(
+                "Document and validate the necessity of extensive IP address infrastructure"
+            )
+        
+        if infrastructure_analysis['correlations'] > 5:
+            recommendations.append(
+                "Investigate shared infrastructure components for operational security implications"
+            )
+        
+        if not recommendations:
+            recommendations.append(
+                "Continue monitoring for changes in the identified digital infrastructure"
+            )
+        
+        return recommendations
+    
+    def _generate_conclusion(self, target: str, infrastructure_analysis: Dict, total_relationships: int) -> str:
+        """Generate a professional conclusion for the report."""
+        conclusion_parts = [
+            f"The passive reconnaissance analysis of '{target}' has successfully mapped "
+            f"a digital infrastructure ecosystem consisting of {infrastructure_analysis['domains']} "
+            f"domain names, {infrastructure_analysis['ips']} IP addresses, and "
+            f"{total_relationships} verified inter-entity relationships."
+        ]
+        
+        conclusion_parts.append(
+            "All findings in this report are based on publicly available information and "
+            "passive reconnaissance techniques. The analysis maintains full forensic integrity "
+            "with complete audit trails for all data collection activities."
+        )
+        
+        return " ".join(conclusion_parts)
+    
+    def _count_bidirectional_relationships(self, graph) -> int:
+        """Count bidirectional relationships in the graph."""
+        count = 0
+        for u, v in graph.edges():
+            if graph.has_edge(v, u):
+                count += 1
+        return count // 2  # Each pair counted twice
+    
+    def _identify_hub_nodes(self, graph, nodes: List[Dict]) -> List[str]:
+        """Identify nodes that serve as major hubs in the network."""
+        if not graph.nodes():
+            return []
+        
+        degree_centrality = nx.degree_centrality(graph.to_undirected())
+        threshold = max(degree_centrality.values()) * 0.8 if degree_centrality else 0
+        
+        return [node for node, centrality in degree_centrality.items() 
+                if centrality >= threshold]
+    
+    def _get_version(self) -> str:
+        """Get DNSRecon version for report authentication."""
+        return "1.0.0-forensic"
+    
+    def export_graph_json(self, graph_manager) -> Dict[str, Any]:
+        """
+        Export complete graph data as a JSON-serializable dictionary.
+        Moved from GraphManager to centralize export functionality.
+        
+        Args:
+            graph_manager: GraphManager instance with graph data
+            
+        Returns:
+            Complete graph data with export metadata
+        """
+        graph_data = nx.node_link_data(graph_manager.graph, edges="edges")
+        
+        return {
+            'export_metadata': {
+                'export_timestamp': datetime.now(timezone.utc).isoformat(),
+                'graph_creation_time': graph_manager.creation_time,
+                'last_modified': graph_manager.last_modified,
+                'total_nodes': graph_manager.get_node_count(),
+                'total_edges': graph_manager.get_edge_count(),
+                'graph_format': 'dnsrecon_v1_unified_model'
+            },
+            'graph': graph_data,
+            'statistics': graph_manager.get_statistics()
+        }
+    
+    def serialize_to_json(self, data: Dict[str, Any], indent: int = 2) -> str:
+        """
+        Serialize data to JSON with custom handling for non-serializable objects.
+        
+        Args:
+            data: Data to serialize
+            indent: JSON indentation level
+            
+        Returns:
+            JSON string representation
+        """
+        try:
+            return json.dumps(data, indent=indent, cls=CustomJSONEncoder, ensure_ascii=False)
+        except Exception:
+            # Fallback to aggressive cleaning
+            cleaned_data = self._clean_for_json(data)
+            return json.dumps(cleaned_data, indent=indent, ensure_ascii=False)
+    
+    def _clean_for_json(self, obj, max_depth: int = 10, current_depth: int = 0) -> Any:
+        """
+        Recursively clean an object to make it JSON serializable.
+        Handles circular references and problematic object types.
+        
+        Args:
+            obj: Object to clean
+            max_depth: Maximum recursion depth
+            current_depth: Current recursion depth
+            
+        Returns:
+            JSON-serializable object
+        """
+        if current_depth > max_depth:
+            return f"<max_depth_exceeded_{type(obj).__name__}>"
+        
+        if obj is None or isinstance(obj, (bool, int, float, str)):
+            return obj
+        elif isinstance(obj, datetime):
+            return obj.isoformat()
+        elif isinstance(obj, (set, frozenset)):
+            return list(obj)
+        elif isinstance(obj, dict):
+            cleaned = {}
+            for key, value in obj.items():
+                try:
+                    # Ensure key is string
+                    clean_key = str(key) if not isinstance(key, str) else key
+                    cleaned[clean_key] = self._clean_for_json(value, max_depth, current_depth + 1)
+                except Exception:
+                    cleaned[str(key)] = f"<serialization_error_{type(value).__name__}>"
+            return cleaned
+        elif isinstance(obj, (list, tuple)):
+            cleaned = []
+            for item in obj:
+                try:
+                    cleaned.append(self._clean_for_json(item, max_depth, current_depth + 1))
+                except Exception:
+                    cleaned.append(f"<serialization_error_{type(item).__name__}>")
+            return cleaned
+        elif hasattr(obj, '__dict__'):
+            try:
+                return self._clean_for_json(obj.__dict__, max_depth, current_depth + 1)
+            except Exception:
+                return str(obj)
+        elif hasattr(obj, 'value'):
+            # For enum-like objects
+            return obj.value
+        else:
+            return str(obj)
+    
+    def generate_filename(self, target: str, export_type: str, timestamp: Optional[datetime] = None) -> str:
+        """
+        Generate standardized filename for exports.
+        
+        Args:
+            target: Target domain/IP being scanned
+            export_type: Type of export (json, txt, summary)
+            timestamp: Optional timestamp (defaults to now)
+            
+        Returns:
+            Formatted filename with forensic naming convention
+        """
+        if timestamp is None:
+            timestamp = datetime.now(timezone.utc)
+        
+        timestamp_str = timestamp.strftime('%Y%m%d_%H%M%S')
+        safe_target = "".join(c for c in target if c.isalnum() or c in ('-', '_', '.')).rstrip()
+        
+        extension_map = {
+            'json': 'json',
+            'txt': 'txt', 
+            'summary': 'txt',
+            'targets': 'txt'
+        }
+        
+        extension = extension_map.get(export_type, 'txt')
+        return f"dnsrecon_{export_type}_{safe_target}_{timestamp_str}.{extension}"
+
+
+class CustomJSONEncoder(json.JSONEncoder):
+    """Custom JSON encoder to handle non-serializable objects."""
+    
+    def default(self, obj):
+        if isinstance(obj, datetime):
+            return obj.isoformat()
+        elif isinstance(obj, set):
+            return list(obj)
+        elif isinstance(obj, Decimal):
+            return float(obj)
+        elif hasattr(obj, '__dict__'):
+            # For custom objects, try to serialize their dict representation
+            try:
+                return obj.__dict__
+            except:
+                return str(obj)
+        elif hasattr(obj, 'value') and hasattr(obj, 'name'):
+            # For enum objects
+            return obj.value
+        else:
+            # For any other non-serializable object, convert to string
+            return str(obj)
+
+
+# Global export manager instance
+export_manager = ExportManager()

utils/helpers.py

@@ -1,3 +1,8 @@
+# dnsrecon-reduced/utils/helpers.py
+
+import ipaddress
+from typing import Union
+
 def _is_valid_domain(domain: str) -> bool:
     """
     Basic domain validation.
@@ -26,32 +31,27 @@ def _is_valid_domain(domain: str) -> bool:
 
 def _is_valid_ip(ip: str) -> bool:
     """
-    Basic IP address validation.
+    IP address validation supporting both IPv4 and IPv6.
 
     Args:
         ip: IP address string to validate
 
     Returns:
-        True if IP appears valid
+        True if IP appears valid (IPv4 or IPv6)
     """
+    if not ip:
+        return False
+    
     try:
-        parts = ip.split('.')
-        if len(parts) != 4:
-            return False
-
-        for part in parts:
-            num = int(part)
-            if not 0 <= num <= 255:
-                return False
-
+        # This handles both IPv4 and IPv6 validation
+        ipaddress.ip_address(ip.strip())
         return True
-
     except (ValueError, AttributeError):
         return False
 
 def is_valid_target(target: str) -> bool:
     """
-    Checks if the target is a valid domain or IP address.
+    Checks if the target is a valid domain or IP address (IPv4/IPv6).
 
     Args:
         target: The target string to validate.
@@ -60,3 +60,35 @@ def is_valid_target(target: str) -> bool:
         True if the target is a valid domain or IP, False otherwise.
     """
     return _is_valid_domain(target) or _is_valid_ip(target)
+
+def get_ip_version(ip: str) -> Union[int, None]:
+    """
+    Get the IP version (4 or 6) of a valid IP address.
+    
+    Args:
+        ip: IP address string
+        
+    Returns:
+        4 for IPv4, 6 for IPv6, None if invalid
+    """
+    try:
+        addr = ipaddress.ip_address(ip.strip())
+        return addr.version
+    except (ValueError, AttributeError):
+        return None
+
+def normalize_ip(ip: str) -> Union[str, None]:
+    """
+    Normalize an IP address to its canonical form.
+    
+    Args:
+        ip: IP address string
+        
+    Returns:
+        Normalized IP address string, None if invalid
+    """
+    try:
+        addr = ipaddress.ip_address(ip.strip())
+        return str(addr)
+    except (ValueError, AttributeError):
+        return None