readme

Reviewed-on: #1

.env.example

@@ -0,0 +1,34 @@
+# ===============================================
+# DNSRecon Environment Variables
+# ===============================================
+# Copy this file to .env and fill in your values.
+
+# --- API Keys ---
+# Add your Shodan API key for the Shodan provider to be enabled.
+SHODAN_API_KEY=
+
+# --- Flask & Session Settings ---
+# A strong, random secret key is crucial for session security.
+FLASK_SECRET_KEY=your-very-secret-and-random-key-here
+FLASK_HOST=127.0.0.1
+FLASK_PORT=5000
+FLASK_DEBUG=True
+# How long a user's session in the browser lasts (in hours).
+FLASK_PERMANENT_SESSION_LIFETIME_HOURS=2
+# How long inactive scanner data is stored in Redis (in minutes).
+SESSION_TIMEOUT_MINUTES=60
+
+
+# --- Application Core Settings ---
+# The default number of levels to recurse when scanning.
+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
+# 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

.gitignore

@@ -169,3 +169,4 @@ cython_debug/
 #.idea/
 
 dump.rdb
+cache/

README.md

@@ -4,28 +4,32 @@ DNSRecon is an interactive, passive reconnaissance tool designed to map adversar
 
 **Current Status: Phase 2 Implementation**
 
-  - ✅ 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
+  * ✅ 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
+
+-----
 
 ## Features
 
-  - **Passive Reconnaissance**: Gathers data without direct contact with target infrastructure.
-  - **In-Memory Graph Analysis**: Uses NetworkX for efficient relationship mapping.
-  - **Real-Time Visualization**: The graph updates dynamically as the scan progresses.
-  - **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.
+  * **Passive Reconnaissance**: Gathers data without direct contact with target infrastructure.
+  * **In-Memory Graph Analysis**: Uses NetworkX for efficient relationship mapping.
+  * **Real-Time Visualization**: The graph updates dynamically as the scan progresses.
+  * **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.
+
+-----
 
 ## Installation
 
 ### 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.
+  * 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.
 
 ### 1\. Clone the Project
 
@@ -44,156 +48,50 @@ source venv/bin/activate
 pip install -r requirements.txt
 ```
 
-### 3\. (Optional but Recommended) Set up a Local DNS Caching Resolver
+The `requirements.txt` file contains the following dependencies:
 
-Running a local DNS caching resolver can significantly speed up DNS queries and reduce your network footprint. Here’s how to set up `unbound` on a Debian-based Linux distribution (like Ubuntu).
+  * 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
+  * gunicorn
+  * redis
+  * python-dotenv
 
-**a. Install Unbound:**
+-----
+
+## Configuration
+
+DNSRecon is configured using a `.env` file. You can copy the provided example file and edit it to suit your needs:
 
 ```bash
-sudo apt update
-sudo apt install unbound -y
+cp .env.example .env
 ```
 
-**b. Configure Unbound:**
-Create a new configuration file for DNSRecon:
+The following environment variables are available for configuration:
 
-```bash
-sudo nano /etc/unbound/unbound.conf.d/dnsrecon.conf
-```
+| Variable | Description | Default |
+| :--- | :--- | :--- |
+| `SHODAN_API_KEY` | Your Shodan API key. | |
+| `FLASK_SECRET_KEY`| A strong, random secret key for session security. | `your-very-secret-and-random-key-here` |
+| `FLASK_HOST` | The host address for the Flask application. | `127.0.0.1` |
+| `FLASK_PORT` | The port for the Flask application. | `5000` |
+| `FLASK_DEBUG` | Enable or disable Flask's debug mode. | `True` |
+| `FLASK_PERMANENT_SESSION_LIFETIME_HOURS`| How long a user's session in the browser lasts (in hours). | `2` |
+| `SESSION_TIMEOUT_MINUTES` | How long inactive scanner data is stored in Redis (in minutes). | `60` |
+| `DEFAULT_RECURSION_DEPTH` | The default number of levels to recurse when scanning. | `2` |
+| `DEFAULT_TIMEOUT` | Default timeout for provider API requests in seconds. | `30` |
+| `MAX_CONCURRENT_REQUESTS`| The number of concurrent provider requests to make. | `5` |
+| `LARGE_ENTITY_THRESHOLD`| The number of results from a provider that triggers the "large entity" grouping. | `100` |
+| `MAX_RETRIES_PER_TARGET`| The number of times to retry a target if a provider fails. | `8` |
+| `CACHE_EXPIRY_HOURS`| How long cached provider responses are stored (in hours). | `12` |
 
-Add the following content to the file:
+-----
 
-```
-server:
-    # Listen on localhost for all users
-    interface: 127.0.0.1
-    access-control: 0.0.0.0/0 refuse
-    access-control: 127.0.0.0/8 allow
-
-    # Enable prefetching of popular items
-    prefetch: yes
-```
-
-**c. Restart Unbound and set it as the default resolver:**
-
-```bash
-sudo systemctl restart unbound
-sudo systemctl enable unbound
-```
-
-To use this resolver for your system, you may need to update your network settings to point to `127.0.0.1` as your DNS server.
-
-**d. Update DNSProvider to use the local resolver:**
-In `dnsrecon/providers/dns_provider.py`, you can explicitly set the resolver's nameservers in the `__init__` method:
-
-```python
-# dnsrecon/providers/dns_provider.py
-
-class DNSProvider(BaseProvider):
-    def __init__(self, session_config=None):
-        """Initialize DNS provider with session-specific configuration."""
-        super().__init__(...)
-
-        # Configure DNS resolver
-        self.resolver = dns.resolver.Resolver()
-        self.resolver.nameservers = ['127.0.0.1'] # Use local caching resolver
-        self.resolver.timeout = 5
-        self.resolver.lifetime = 10
-```
-
-## Usage (Development)
-
-### 1\. Start the Application
-
-```bash
-python app.py
-```
-
-### 2\. Open Your Browser
-
-Navigate to `http://127.0.0.1:5000`.
-
-### 3\. Basic Reconnaissance Workflow
-
-1.  **Enter Target Domain**: Input a domain like `example.com`.
-2.  **Select Recursion Depth**: Depth 2 is recommended for most investigations.
-3.  **Start Reconnaissance**: Click "Start Reconnaissance" to begin.
-4.  **Monitor Progress**: Watch the real-time graph build as relationships are discovered.
-5.  **Analyze and Export**: Interact with the graph and download the results when the scan is complete.
-
-## Production Deployment
-
-To deploy DNSRecon in a production environment, follow these steps:
-
-### 1\. Use a Production WSGI Server
-
-Do not use the built-in Flask development server for production. Use a WSGI server like **Gunicorn**:
-
-```bash
-pip install gunicorn
-gunicorn --workers 4 --bind 0.0.0.0:5000 app:app
-```
-
-### 2\. Configure Environment Variables
-
-Set the following environment variables for a secure and configurable deployment:
-
-```bash
-# Generate a strong, random secret key
-export SECRET_KEY='your-super-secret-and-random-key'
-
-# Set Flask to production mode
-export FLASK_ENV='production'
-export FLASK_DEBUG=False
-
-# API keys (optional, but recommended for full functionality)
-export SHODAN_API_KEY="your_shodan_key"
-```
-
-### 3\. Use a Reverse Proxy
-
-Set up a reverse proxy like **Nginx** to sit in front of the Gunicorn server. This provides several benefits, including:
-
-  - **TLS/SSL Termination**: Securely handle HTTPS traffic.
-  - **Load Balancing**: Distribute traffic across multiple application instances.
-  - **Serving Static Files**: Efficiently serve CSS and JavaScript files.
-
-**Example Nginx Configuration:**
-
-```nginx
-server {
-    listen 80;
-    server_name your_domain.com;
-
-    location / {
-        return 301 https://$host$request_uri;
-    }
-}
-
-server {
-    listen 443 ssl;
-    server_name your_domain.com;
-
-    # SSL cert configuration
-    ssl_certificate /etc/letsencrypt/live/your_domain.com/fullchain.pem;
-    ssl_certificate_key /etc/letsencrypt/live/your_domain.com/privkey.pem;
-
-    location / {
-        proxy_pass http://127.0.0.1:5000;
-        proxy_set_header Host $host;
-        proxy_set_header X-Real-IP $remote_addr;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-    }
-
-    location /static {
-        alias /path/to/your/dnsrecon/static;
-        expires 30d;
-    }
-}
-```
-
-## Autostart with systemd
+## Systemd Service
 
 To run DNSRecon as a service that starts automatically on boot, you can use `systemd`.
 
@@ -245,12 +143,18 @@ You can check the status of the service at any time with:
 sudo systemctl status dnsrecon.service
 ```
 
-## Security Considerations
-
-  - **API Keys**: API keys are stored in memory for the duration of a user session and are not written to disk.
-  - **Rate Limiting**: DNSRecon includes built-in rate limiting to be respectful to data sources.
-  - **Local Use**: The application is designed for local or trusted network use and does not have built-in authentication. **Do not expose it directly to the internet without proper security controls.**
+-----
 
 ## License
 
-This project is licensed under the terms of the license agreement found in the `LICENSE` file.
+This project is licensed under the terms of the **BSD-3-Clause** license.
+
+Copyright (c) 2025 mstoeck3.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1.  Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+2.  Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+3.  Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

app.py

@@ -1,3 +1,5 @@
+# dnsrecon-reduced/app.py
+
 """
 Flask application entry point for DNSRecon web interface.
 Provides REST API endpoints and serves the web interface with user session support.
@@ -11,51 +13,41 @@ import io
 
 from core.session_manager import session_manager
 from config import config
+from core.graph_manager import NodeType
+from utils.helpers import is_valid_target
 
 
 app = Flask(__name__)
-app.config['SECRET_KEY'] = 'dnsrecon-dev-key-change-in-production'
-app.config['PERMANENT_SESSION_LIFETIME'] = timedelta(hours=2)  # 2 hour session lifetime
+# Use centralized configuration for Flask settings
+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():
     """
-    User scanner retrieval with better error handling and debugging.
+    Retrieves the scanner for the current session, or creates a new
+    session and scanner if one doesn't exist.
     """
     # Get current Flask session info for debugging
     current_flask_session_id = session.get('dnsrecon_session_id')
-    client_ip = request.remote_addr
-    user_agent = request.headers.get('User-Agent', '')[:100]  # Truncate for logging
     
     # Try to get existing session
     if current_flask_session_id:
         existing_scanner = session_manager.get_session(current_flask_session_id)
         if existing_scanner:
-            # Ensure session ID is set
-            existing_scanner.session_id = current_flask_session_id
             return current_flask_session_id, existing_scanner
-        else:
-            print(f"Session {current_flask_session_id} not found in session manager")
     
-    # Create new session
-    print("Creating new session...")
+    # Create new session if none exists
+    print("Creating new session as none was found...")
     new_session_id = session_manager.create_session()
     new_scanner = session_manager.get_session(new_session_id)
     
     if not new_scanner:
-        print(f"ERROR: Failed to retrieve newly created session {new_session_id}")
         raise Exception("Failed to create new scanner session")
     
     # Store in Flask session
     session['dnsrecon_session_id'] = new_session_id
     session.permanent = True
     
-    # Ensure session ID is set on scanner
-    new_scanner.session_id = new_session_id
-    
-    print(f"Created new session: {new_session_id}")
-    print(f"New scanner status: {new_scanner.status}")
-    print("=== END SESSION DEBUG ===")
-    
     return new_session_id, new_scanner
 
 @app.route('/')
@@ -67,101 +59,71 @@ def index():
 @app.route('/api/scan/start', methods=['POST'])
 def start_scan():
     """
-    Start a new reconnaissance scan with immediate GUI feedback.
+    Start a new reconnaissance scan. Creates a new isolated scanner if
+    clear_graph is true, otherwise adds to the existing one.
     """
     print("=== API: /api/scan/start called ===")
     
     try:
-        print("Getting JSON data from request...")
         data = request.get_json()
-        print(f"Request data: {data}")
+        if not data or 'target' not in data:
+            return jsonify({'success': False, 'error': 'Missing target in request'}), 400
         
-        if not data or 'target_domain' not in data:
-            print("ERROR: Missing target_domain in request")
-            return jsonify({
-                'success': False,
-                'error': 'Missing target_domain in request'
-            }), 400
-        
-        target_domain = data['target_domain'].strip()
+        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
         
-        print(f"Parsed - target_domain: '{target_domain}', max_depth: {max_depth}")
+        print(f"Parsed - target: '{target}', max_depth: {max_depth}, clear_graph: {clear_graph}, force_rescan: {force_rescan_target}")
         
         # Validation
-        if not target_domain:
-            print("ERROR: Target domain cannot be empty")
-            return jsonify({
-                'success': False,
-                'error': 'Target domain cannot be empty'
-            }), 400
+        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
+        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
         
-        if not isinstance(max_depth, int) or max_depth < 1 or max_depth > 5:
-            print(f"ERROR: Invalid max_depth: {max_depth}")
-            return jsonify({
-                'success': False,
-                'error': 'Max depth must be an integer between 1 and 5'
-            }), 400
+        user_session_id, scanner = None, None
 
-        print("Validation passed, getting user scanner...")
+        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)
             
-        # Get user-specific scanner
+            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()
 
-        # Ensure session ID is properly set
-        if not scanner.session_id:
-            scanner.session_id = user_session_id
+        if not scanner:
+            return jsonify({'success': False, 'error': 'Failed to get or create a scanner instance.'}), 500
         
-        print(f"Using session: {user_session_id}")
-        print(f"Scanner object ID: {id(scanner)}")
+        print(f"Using scanner {id(scanner)} in session {user_session_id}")
         
-        # Start scan
-        print(f"Calling start_scan on scanner {id(scanner)}...")
-        success = scanner.start_scan(target_domain, max_depth, clear_graph=clear_graph)
-        
-        # Immediately update session state regardless of success
-        session_manager.update_session_scanner(user_session_id, scanner)
+        success = scanner.start_scan(target, max_depth, clear_graph=clear_graph, force_rescan_target=force_rescan_target) # **FIX**: Pass the new parameter
         
         if success:
-            scan_session_id = scanner.logger.session_id
-            print(f"Scan started successfully with scan session ID: {scan_session_id}")
             return jsonify({
                 'success': True,
                 'message': 'Scan started successfully',
-                'scan_id': scan_session_id,
+                'scan_id': scanner.logger.session_id,
                 'user_session_id': user_session_id,
-                'scanner_status': scanner.status,
-                'debug_info': {
-                    'scanner_object_id': id(scanner),
-                    'scanner_status': scanner.status
-                }
             })
         else:
-            print("ERROR: Scanner returned False")
-            
-            # Provide more detailed error information
-            error_details = {
-                'scanner_status': scanner.status,
-                'scanner_object_id': id(scanner),
-                'session_id': user_session_id,
-                'providers_count': len(scanner.providers) if hasattr(scanner, 'providers') else 0
-            }
-            
             return jsonify({
                 'success': False,
                 'error': f'Failed to start scan (scanner status: {scanner.status})',
-                'debug_info': error_details
             }), 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
-
+        return jsonify({'success': False, 'error': f'Internal server error: {str(e)}'}), 500
     
 @app.route('/api/scan/stop', methods=['POST'])
 def stop_scan():
@@ -320,6 +282,108 @@ def get_graph_data():
             }
         }), 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."""
+    try:
+        data = request.get_json()
+        large_entity_id = data.get('large_entity_id')
+        node_id = data.get('node_id')
+
+        if not large_entity_id or not node_id:
+            return jsonify({'success': False, 'error': 'Missing required parameters'}), 400
+
+        user_session_id, scanner = get_user_scanner()
+        if not scanner:
+            return jsonify({'success': False, 'error': 'No active session found'}), 404
+
+        success = scanner.extract_node_from_large_entity(large_entity_id, node_id)
+        
+        if success:
+            session_manager.update_session_scanner(user_session_id, scanner)
+            return jsonify({'success': True, 'message': f'Node {node_id} extracted successfully.'})
+        else:
+            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."""
+    try:
+        user_session_id, scanner = get_user_scanner()
+        if not scanner:
+            return jsonify({'success': False, 'error': 'No active session found'}), 404
+
+        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
+
+    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
+
+
+@app.route('/api/graph/revert', methods=['POST'])
+def revert_graph_action():
+    """Reverts a graph action, such as re-adding a deleted node."""
+    try:
+        data = request.get_json()
+        if not data or 'type' not in data or 'data' not in data:
+            return jsonify({'success': False, 'error': 'Invalid revert request format'}), 400
+
+        user_session_id, scanner = get_user_scanner()
+        if not scanner:
+            return jsonify({'success': False, 'error': 'No active session found'}), 404
+
+        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(
+                    node_id=node_to_add['id'],
+                    node_type=NodeType(node_to_add['type']),
+                    attributes=node_to_add.get('attributes'),
+                    description=node_to_add.get('description'),
+                    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'],
+                        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'])
@@ -367,12 +431,19 @@ def export_results():
 @app.route('/api/providers', methods=['GET'])
 def get_providers():
     """Get information about available providers for the user session."""
-    print("=== API: /api/providers called ===")
     
     try:
         # Get user-specific scanner
         user_session_id, scanner = get_user_scanner()
         
+        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.")
+
         provider_info = scanner.get_provider_info()
         
         return jsonify({
@@ -447,113 +518,6 @@ def set_api_keys():
             'error': f'Internal server error: {str(e)}'
         }), 500
 
-
-@app.route('/api/session/info', methods=['GET'])
-def get_session_info():
-    """Get information about the current user session."""
-    try:
-        user_session_id, scanner = get_user_scanner()
-        session_info = session_manager.get_session_info(user_session_id)
-        
-        return jsonify({
-            'success': True,
-            'session_info': session_info
-        })
-    
-    except Exception as e:
-        print(f"ERROR: Exception in get_session_info endpoint: {e}")
-        traceback.print_exc()
-        return jsonify({
-            'success': False,
-            'error': f'Internal server error: {str(e)}'
-        }), 500
-
-
-@app.route('/api/session/terminate', methods=['POST'])
-def terminate_session():
-    """Terminate the current user session."""
-    try:
-        user_session_id = session.get('dnsrecon_session_id')
-        
-        if user_session_id:
-            success = session_manager.terminate_session(user_session_id)
-            # Clear Flask session
-            session.pop('dnsrecon_session_id', None)
-            
-            return jsonify({
-                'success': success,
-                'message': 'Session terminated' if success else 'Session not found'
-            })
-        else:
-            return jsonify({
-                'success': False,
-                'error': 'No active session to terminate'
-            }), 400
-    
-    except Exception as e:
-        print(f"ERROR: Exception in terminate_session endpoint: {e}")
-        traceback.print_exc()
-        return jsonify({
-            'success': False,
-            'error': f'Internal server error: {str(e)}'
-        }), 500
-
-
-@app.route('/api/admin/sessions', methods=['GET'])
-def list_sessions():
-    """Admin endpoint to list all active sessions."""
-    try:
-        sessions = session_manager.list_active_sessions()
-        stats = session_manager.get_statistics()
-        
-        return jsonify({
-            'success': True,
-            'sessions': sessions,
-            'statistics': stats
-        })
-    
-    except Exception as e:
-        print(f"ERROR: Exception in list_sessions endpoint: {e}")
-        traceback.print_exc()
-        return jsonify({
-            'success': False,
-            'error': f'Internal server error: {str(e)}'
-        }), 500
-
-
-@app.route('/api/health', methods=['GET'])
-def health_check():
-    """Health check endpoint."""
-    try:
-        # Get session stats
-        session_stats = session_manager.get_statistics()
-        
-        return jsonify({
-            'success': True,
-            'status': 'healthy',
-            'timestamp': datetime.now(timezone.utc).isoformat(),
-            'version': '1.0.0-phase2',
-            'phase': 2,
-            'features': {
-                'multi_provider': True,
-                'concurrent_processing': True,
-                'real_time_updates': True,
-                'api_key_management': True,
-                'visualization': True,
-                'retry_logic': True,
-                'user_sessions': True,
-                'session_isolation': True
-            },
-            'session_statistics': session_stats
-        })
-    except Exception as e:
-        print(f"ERROR: Exception in health_check endpoint: {e}")
-        return jsonify({
-            'success': False,
-            'error': f'Health check failed: {str(e)}'
-        }), 500
-
-
 @app.errorhandler(404)
 def not_found(error):
     """Handle 404 errors."""

config.py

@@ -1,3 +1,5 @@
+# dnsrecon-reduced/config.py
+
 """
 Configuration management for DNSRecon tool.
 Handles API key storage, rate limiting, and default settings.
@@ -5,110 +7,97 @@ Handles API key storage, rate limiting, and default settings.
 
 import os
 from typing import Dict, Optional
+from dotenv import load_dotenv
 
+# Load environment variables from .env file
+load_dotenv()
 
 class Config:
     """Configuration manager for DNSRecon application."""
     
     def __init__(self):
         """Initialize configuration with default values."""
-        self.api_keys: Dict[str, Optional[str]] = {
-            'shodan': None
-        }
+        self.api_keys: Dict[str, Optional[str]] = {}
         
-        # Default settings
+        # --- General Settings ---
         self.default_recursion_depth = 2
-        self.default_timeout = 10
+        self.default_timeout = 30
         self.max_concurrent_requests = 5
         self.large_entity_threshold = 100
+        self.max_retries_per_target = 8
+        self.cache_expiry_hours = 12
         
-        # Rate limiting settings (requests per minute)
+        # --- Provider Caching Settings ---
+        self.cache_timeout_hours = 6  # Provider-specific cache timeout
+        
+        # --- Rate Limiting (requests per minute) ---
         self.rate_limits = {
-            'crtsh': 60,          # Free service, be respectful
-            'shodan': 60,         # API dependent
-            'dns': 100            # Local DNS queries
+            'crtsh': 5,
+            'shodan': 60,
+            'dns': 100
         }
         
-        # Provider settings
+        # --- Provider Settings ---
         self.enabled_providers = {
-            'crtsh': True,        # Always enabled (free)
-            'dns': True,          # Always enabled (free)
-            'shodan': False       # Requires API key
+            'crtsh': True,
+            'dns': True,
+            'shodan': False
         }
         
-        # Logging configuration
+        # --- Logging ---
         self.log_level = 'INFO'
         self.log_format = '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
         
-        # Flask configuration
+        # --- Flask & Session Settings ---
         self.flask_host = '127.0.0.1'
         self.flask_port = 5000
         self.flask_debug = True
+        self.flask_secret_key = 'default-secret-key-change-me'
+        self.flask_permanent_session_lifetime_hours = 2
+        self.session_timeout_minutes = 60
         
-    def set_api_key(self, provider: str, api_key: str) -> bool:
-        """
-        Set API key for a provider.
-        
-        Args:
-            provider: Provider name (shodan, etc)
-            api_key: API key string
-            
-        Returns:
-            bool: True if key was set successfully
-        """
-        if provider in self.api_keys:
-            self.api_keys[provider] = api_key
-            self.enabled_providers[provider] = True if api_key else False
-            return True
-        return False
-    
-    def get_api_key(self, provider: str) -> Optional[str]:
-        """
-        Get API key for a provider.
-        
-        Args:
-            provider: Provider name
-            
-        Returns:
-            API key or None if not set
-        """
-        return self.api_keys.get(provider)
-    
-    def is_provider_enabled(self, provider: str) -> bool:
-        """
-        Check if a provider is enabled.
-        
-        Args:
-            provider: Provider name
-            
-        Returns:
-            bool: True if provider is enabled
-        """
-        return self.enabled_providers.get(provider, False)
-    
-    def get_rate_limit(self, provider: str) -> int:
-        """
-        Get rate limit for a provider.
-        
-        Args:
-            provider: Provider name
-            
-        Returns:
-            Rate limit in requests per minute
-        """
-        return self.rate_limits.get(provider, 60)
+        # Load environment variables to override defaults
+        self.load_from_env()
         
     def load_from_env(self):
         """Load configuration from environment variables."""
-        if os.getenv('SHODAN_API_KEY'):
         self.set_api_key('shodan', os.getenv('SHODAN_API_KEY'))
 
-        # Override default settings from environment
-        self.default_recursion_depth = int(os.getenv('DEFAULT_RECURSION_DEPTH', '2'))
-        self.flask_debug = os.getenv('FLASK_DEBUG', 'True').lower() == 'true'
-        self.default_timeout = 30
-        self.max_concurrent_requests = 5
+        # Override settings from environment
+        self.default_recursion_depth = int(os.getenv('DEFAULT_RECURSION_DEPTH', self.default_recursion_depth))
+        self.default_timeout = int(os.getenv('DEFAULT_TIMEOUT', self.default_timeout))
+        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
+        self.flask_host = os.getenv('FLASK_HOST', self.flask_host)
+        self.flask_port = int(os.getenv('FLASK_PORT', self.flask_port))
+        self.flask_debug = os.getenv('FLASK_DEBUG', str(self.flask_debug)).lower() == 'true'
+        self.flask_secret_key = os.getenv('FLASK_SECRET_KEY', self.flask_secret_key)
+        self.flask_permanent_session_lifetime_hours = int(os.getenv('FLASK_PERMANENT_SESSION_LIFETIME_HOURS', self.flask_permanent_session_lifetime_hours))
+        self.session_timeout_minutes = int(os.getenv('SESSION_TIMEOUT_MINUTES', self.session_timeout_minutes))
+
+    def set_api_key(self, provider: str, api_key: Optional[str]) -> bool:
+        """Set API key for a provider."""
+        self.api_keys[provider] = api_key
+        if api_key:
+            self.enabled_providers[provider] = True
+        return True
+    
+    def get_api_key(self, provider: str) -> Optional[str]:
+        """Get API key for a provider."""
+        return self.api_keys.get(provider)
+    
+    def is_provider_enabled(self, provider: str) -> bool:
+        """Check if a provider is enabled."""
+        return self.enabled_providers.get(provider, False)
+    
+    def get_rate_limit(self, provider: str) -> int:
+        """Get rate limit for a provider."""
+        return self.rate_limits.get(provider, 60)
 
 # Global configuration instance
 config = Config()

core/graph_manager.py

@@ -1,3 +1,5 @@
+# core/graph_manager.py
+
 """
 Graph data model for DNSRecon using NetworkX.
 Manages in-memory graph storage with confidence scoring and forensic metadata.
@@ -50,21 +52,23 @@ class GraphManager:
         self.__dict__.update(state)
         self.date_pattern = re.compile(r'^\d{4}-\d{2}-\d{2}[ T]\d{2}:\d{2}:\d{2}')
 
-    def _update_correlation_index(self, node_id: str, data: Any, path: List[str] = None):
-        """Recursively traverse metadata and add hashable values to the index."""
+    def _update_correlation_index(self, node_id: str, data: Any, path: List[str] = [], parent_attr: str = ""):
+        """Recursively traverse metadata and add hashable values to the index with better path tracking."""
         if path is None:
             path = []
 
         if isinstance(data, dict):
             for key, value in data.items():
-                self._update_correlation_index(node_id, value, path + [key])
+                self._update_correlation_index(node_id, value, path + [key], key)
         elif isinstance(data, list):
             for i, item in enumerate(data):
-                self._update_correlation_index(node_id, item, path + [f"[{i}]"])
+                # Instead of just using [i], include the parent attribute context
+                list_path_component = f"[{i}]" if not parent_attr else f"{parent_attr}[{i}]"
+                self._update_correlation_index(node_id, item, path + [list_path_component], parent_attr)
         else:
-            self._add_to_correlation_index(node_id, data, ".".join(path))
+            self._add_to_correlation_index(node_id, data, ".".join(path), parent_attr)
 
-    def _add_to_correlation_index(self, node_id: str, value: Any, path_str: str):
+    def _add_to_correlation_index(self, node_id: str, value: Any, path_str: str, parent_attr: str = ""):
         """Add a hashable value to the correlation index, filtering out noise."""
         if not isinstance(value, (str, int, float, bool)) or value is None:
             return
@@ -80,8 +84,8 @@ class GraphManager:
                 return
             if len(value) < 4 or value.lower() in ['true', 'false', 'unknown', 'none', 'crt.sh']:
                 return
-        elif isinstance(value, int) and abs(value) < 9999:
-            return  # Ignore small integers
+        elif isinstance(value, int) and (abs(value) < 1024 or abs(value) > 65535):
+            return  # Ignore small integers and common port numbers
         elif isinstance(value, bool):
             return  # Ignore boolean values
 
@@ -90,10 +94,47 @@ class GraphManager:
             self.correlation_index[value] = {}
         if node_id not in self.correlation_index[value]:
             self.correlation_index[value][node_id] = []
-        if path_str not in self.correlation_index[value][node_id]:
-            self.correlation_index[value][node_id].append(path_str)
         
-    def _check_for_correlations(self, new_node_id: str, data: Any, path: List[str] = None) -> List[Dict]:
+        # Store both the full path and the parent attribute for better edge labeling
+        correlation_entry = {
+            'path': path_str,
+            'parent_attr': parent_attr,
+            'meaningful_attr': self._extract_meaningful_attribute(path_str, parent_attr)
+        }
+        
+        if correlation_entry not in self.correlation_index[value][node_id]:
+            self.correlation_index[value][node_id].append(correlation_entry)
+
+    def _extract_meaningful_attribute(self, path_str: str, parent_attr: str = "") -> str:
+        """Extract the most meaningful attribute name from a path string."""
+        if not path_str:
+            return "unknown"
+        
+        path_parts = path_str.split('.')
+        
+        # Look for the last non-array-index part
+        for part in reversed(path_parts):
+            # Skip array indices like [0], [1], etc.
+            if not (part.startswith('[') and part.endswith(']') and part[1:-1].isdigit()):
+                # Clean up compound names like "hostnames[0]" to just "hostnames"
+                clean_part = re.sub(r'\[\d+\]$', '', part)
+                if clean_part:
+                    return clean_part
+        
+        # Fallback to parent attribute if available
+        if parent_attr:
+            return parent_attr
+        
+        # Last resort - use the first meaningful part
+        for part in path_parts:
+            if not (part.startswith('[') and part.endswith(']') and part[1:-1].isdigit()):
+                clean_part = re.sub(r'\[\d+\]$', '', part)
+                if clean_part:
+                    return clean_part
+        
+        return "correlation"
+
+    def _check_for_correlations(self, new_node_id: str, data: Any, path: List[str] = [], parent_attr: str = "") -> List[Dict]:
         """Recursively traverse metadata to find correlations with existing data."""
         if path is None:
             path = []
@@ -103,10 +144,11 @@ class GraphManager:
             for key, value in data.items():
                 if key == 'source':  # Avoid correlating on the provider name
                     continue
-                all_correlations.extend(self._check_for_correlations(new_node_id, value, path + [key]))
+                all_correlations.extend(self._check_for_correlations(new_node_id, value, path + [key], key))
         elif isinstance(data, list):
             for i, item in enumerate(data):
-                all_correlations.extend(self._check_for_correlations(new_node_id, item, path + [f"[{i}]"]))
+                list_path_component = f"[{i}]" if not parent_attr else f"{parent_attr}[{i}]"
+                all_correlations.extend(self._check_for_correlations(new_node_id, item, path + [list_path_component], parent_attr))
         else:
             value = data
             if value in self.correlation_index:
@@ -117,11 +159,31 @@ class GraphManager:
                 if len(unique_nodes) < 2:
                     return all_correlations # Correlation must involve at least two distinct nodes
 
-                new_source = {'node_id': new_node_id, 'path': ".".join(path)}
+                new_source = {
+                    'node_id': new_node_id, 
+                    'path': ".".join(path),
+                    'parent_attr': parent_attr,
+                    'meaningful_attr': self._extract_meaningful_attribute(".".join(path), parent_attr)
+                }
                 all_sources = [new_source]
-                for node_id, paths in existing_nodes_with_paths.items():
-                    for p_str in paths:
-                        all_sources.append({'node_id': node_id, 'path': p_str})
+                
+                for node_id, path_entries in existing_nodes_with_paths.items():
+                    for entry in path_entries:
+                        if isinstance(entry, dict):
+                            all_sources.append({
+                                'node_id': node_id,
+                                'path': entry['path'],
+                                'parent_attr': entry.get('parent_attr', ''),
+                                'meaningful_attr': entry.get('meaningful_attr', self._extract_meaningful_attribute(entry['path'], entry.get('parent_attr', '')))
+                            })
+                        else:
+                            # Handle legacy string-only entries
+                            all_sources.append({
+                                'node_id': node_id,
+                                'path': str(entry),
+                                'parent_attr': '',
+                                'meaningful_attr': self._extract_meaningful_attribute(str(entry))
+                            })
 
                 all_correlations.append({
                     'value': value,
@@ -163,8 +225,7 @@ class GraphManager:
                     # Skip creating correlation node - would be redundant
                     continue
                 
-                # STEP 2: Filter out node pairs that already have direct edges
-                eligible_nodes = self._filter_nodes_without_direct_edges(set(corr['nodes']))
+                eligible_nodes = set(corr['nodes'])
                 
                 if len(eligible_nodes) < 2:
                     # Need at least 2 nodes to create a correlation
@@ -184,11 +245,12 @@ class GraphManager:
                                 metadata={'values': [value], 'sources': corr['sources'],
                                             'correlated_nodes': list(eligible_nodes)})
                     
-                    # Create edges from eligible nodes to this correlation node
+                    # Create edges from eligible nodes to this correlation node with better labeling
                     for c_node_id in eligible_nodes:
                         if self.graph.has_node(c_node_id):
-                            attribute = corr['sources'][0]['path'].split('.')[-1]
-                            relationship_type = f"c_{attribute}"
+                            # Find the best attribute name for this node
+                            meaningful_attr = self._find_best_attribute_name_for_node(c_node_id, corr['sources'])
+                            relationship_type = f"c_{meaningful_attr}"
                             self.add_edge(c_node_id, correlation_node_id, relationship_type, confidence_score=0.9)
 
             self._update_correlation_index(node_id, attributes)
@@ -196,27 +258,34 @@ class GraphManager:
         self.last_modified = datetime.now(timezone.utc).isoformat()
         return is_new_node
 
-    def _filter_nodes_without_direct_edges(self, node_set: set) -> set:
-        """
-        Filter out nodes that already have direct edges between them.
-        Returns set of nodes that should be included in correlation.
-        """
-        nodes_list = list(node_set)
-        eligible_nodes = set(node_set)  # Start with all nodes
+    def _find_best_attribute_name_for_node(self, node_id: str, sources: List[Dict]) -> str:
+        """Find the best attribute name for a correlation edge by looking at the sources."""
+        node_sources = [s for s in sources if s['node_id'] == node_id]
         
-        # Check all pairs of nodes
-        for i in range(len(nodes_list)):
-            for j in range(i + 1, len(nodes_list)):
-                node_a = nodes_list[i]
-                node_b = nodes_list[j]
+        if not node_sources:
+            return "correlation"
         
-                # Check if direct edge exists in either direction
-                if self._has_direct_edge_bidirectional(node_a, node_b):
-                    # Remove both nodes from eligible set since they're already connected
-                    eligible_nodes.discard(node_a)
-                    eligible_nodes.discard(node_b)
+        # Use the meaningful_attr if available
+        for source in node_sources:
+            meaningful_attr = source.get('meaningful_attr')
+            if meaningful_attr and meaningful_attr != "unknown":
+                return meaningful_attr
         
-        return eligible_nodes
+        # Fallback to parent_attr
+        for source in node_sources:
+            parent_attr = source.get('parent_attr')
+            if parent_attr:
+                return parent_attr
+        
+        # Last resort - extract from path
+        for source in node_sources:
+            path = source.get('path', '')
+            if path:
+                extracted = self._extract_meaningful_attribute(path)
+                if extracted != "unknown":
+                    return extracted
+        
+        return "correlation"
 
     def _has_direct_edge_bidirectional(self, node_a: str, node_b: str) -> bool:
         """
@@ -290,7 +359,7 @@ class GraphManager:
         # 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['path'])
+            source_tuple = (source['node_id'], source.get('path', ''))
             source_set.add(source_tuple)
         
         # Convert back to list of dictionaries
@@ -345,6 +414,53 @@ 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):
+            return False
+
+        # 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, nodes in self.correlation_index.items():
+            if node_id in nodes:
+                del nodes[node_id]
+            if not nodes: # If no other nodes are associated with this value, remove it
+                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
+
     def get_node_count(self) -> int:
         """Get total number of nodes in the graph."""
         return self.graph.number_of_nodes()
@@ -421,10 +537,14 @@ class GraphManager:
     def _get_confidence_distribution(self) -> Dict[str, int]:
         """Get distribution of edge confidence scores."""
         distribution = {'high': 0, 'medium': 0, 'low': 0}
-        for _, _, confidence in self.graph.edges(data='confidence_score', default=0):
-            if confidence >= 0.8: distribution['high'] += 1
-            elif confidence >= 0.6: distribution['medium'] += 1
-            else: distribution['low'] += 1
+        for _, _, data in self.graph.edges(data=True):
+            confidence = data.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_statistics(self) -> Dict[str, Any]:
@@ -439,9 +559,10 @@ class GraphManager:
         # Calculate distributions
         for node_type in NodeType:
             stats['node_type_distribution'][node_type.value] = self.get_nodes_by_type(node_type).__len__()
-        for _, _, rel_type in self.graph.edges(data='relationship_type', default='unknown'):
+        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
-        for _, _, provider in self.graph.edges(data='source_provider', default='unknown'):
+            provider = data.get('source_provider', 'unknown')
             stats['provider_distribution'][provider] = stats['provider_distribution'].get(provider, 0) + 1
         return stats
 

core/logger.py

@@ -42,7 +42,7 @@ class ForensicLogger:
     Maintains detailed audit trail of all reconnaissance activities.
     """
     
-    def __init__(self, session_id: str = None):
+    def __init__(self, session_id: str = ""):
         """
         Initialize forensic logger.
         
@@ -50,7 +50,7 @@ class ForensicLogger:
             session_id: Unique identifier for this reconnaissance session
         """
         self.session_id = session_id or self._generate_session_id()
-        #self.lock = threading.Lock()
+        self.lock = threading.Lock()
         
         # Initialize audit trail storage
         self.api_requests: List[APIRequest] = []
@@ -86,6 +86,8 @@ class ForensicLogger:
         # Remove the unpickleable 'logger' attribute
         if 'logger' in state:
             del state['logger']
+        if 'lock' in state:
+            del state['lock']
         return state
 
     def __setstate__(self, state):
@@ -101,6 +103,7 @@ class ForensicLogger:
             console_handler = logging.StreamHandler()
             console_handler.setFormatter(formatter)
             self.logger.addHandler(console_handler)
+        self.lock = threading.Lock()
 
     def _generate_session_id(self) -> str:
         """Generate unique session identifier."""
@@ -203,8 +206,6 @@ class ForensicLogger:
         self.session_metadata['target_domains'] = list(self.session_metadata['target_domains'])
         
         self.logger.info(f"Scan Complete - Session: {self.session_id}")
-        self.logger.info(f"Total API Requests: {self.session_metadata['total_requests']}")
-        self.logger.info(f"Total Relationships: {self.session_metadata['total_relationships']}")
     
     def export_audit_trail(self) -> Dict[str, Any]:
         """

core/rate_limiter.py

@@ -0,0 +1,29 @@
+# dnsrecon-reduced/core/rate_limiter.py
+
+import time
+import redis
+
+class GlobalRateLimiter:
+    def __init__(self, redis_client):
+        self.redis = redis_client
+
+    def is_rate_limited(self, key, limit, period):
+        """
+        Check if a key is rate-limited.
+        """
+        now = time.time()
+        key = f"rate_limit:{key}"
+
+        # Remove old timestamps
+        self.redis.zremrangebyscore(key, 0, now - period)
+
+        # Check the count
+        count = self.redis.zcard(key)
+        if count >= limit:
+            return True
+
+        # Add new timestamp
+        self.redis.zadd(key, {now: now})
+        self.redis.expire(key, period)
+
+        return False

core/scanner.py

@@ -1,20 +1,22 @@
-# dnsrecon/core/scanner.py
+# dnsrecon-reduced/core/scanner.py
 
 import threading
 import traceback
 import time
 import os
 import importlib
-from typing import List, Set, Dict, Any, Tuple
+import redis
+from typing import List, Set, Dict, Any, Tuple, Optional
 from concurrent.futures import ThreadPoolExecutor, as_completed, CancelledError, Future
-from collections import defaultdict, deque
+from collections import defaultdict
+from queue import PriorityQueue
 from datetime import datetime, timezone
 
 from core.graph_manager import GraphManager, NodeType
 from core.logger import get_forensic_logger, new_session
 from utils.helpers import _is_valid_ip, _is_valid_domain
 from providers.base_provider import BaseProvider
-
+from core.rate_limiter import GlobalRateLimiter
 
 class ScanStatus:
     """Enumeration of scan statuses."""
@@ -49,11 +51,21 @@ class Scanner:
             self.max_depth = 2
             self.stop_event = threading.Event()
             self.scan_thread = None
-            self.session_id = None  # Will be set by session manager
+            self.session_id: Optional[str] = None  # Will be set by session manager
+            self.task_queue = PriorityQueue()
+            self.target_retries = defaultdict(int)
+            self.scan_failed_due_to_retries = False
+
+            # **NEW**: Track currently processing tasks to prevent processing after stop
+            self.currently_processing = set()
+            self.processing_lock = threading.Lock()
 
             # Scanning progress tracking
             self.total_indicators_found = 0
             self.indicators_processed = 0
+            self.indicators_completed = 0
+            self.tasks_re_enqueued = 0
+            self.total_tasks_ever_enqueued = 0
             self.current_indicator = ""
 
             # Concurrent processing configuration
@@ -68,6 +80,9 @@ class Scanner:
             print("Initializing forensic logger...")
             self.logger = get_forensic_logger()
             
+            # Initialize global rate limiter
+            self.rate_limiter = GlobalRateLimiter(redis.StrictRedis(db=0))
+
             print("Scanner initialization complete")
 
         except Exception as e:
@@ -119,7 +134,11 @@ class Scanner:
         unpicklable_attrs = [
             'stop_event',
             'scan_thread', 
-            'executor'
+            'executor',
+            'processing_lock',
+            'task_queue',
+            'rate_limiter',
+            'logger'
         ]
         
         for attr in unpicklable_attrs:
@@ -128,7 +147,6 @@ class Scanner:
         
         # Handle providers separately to ensure they're picklable
         if 'providers' in state:
-            # The providers should be picklable now, but let's ensure clean state
             for provider in state['providers']:
                 if hasattr(provider, '_stop_event'):
                     provider._stop_event = None
@@ -143,6 +161,17 @@ class Scanner:
         self.stop_event = threading.Event()
         self.scan_thread = None
         self.executor = None
+        self.processing_lock = threading.Lock()
+        self.task_queue = PriorityQueue()
+        self.rate_limiter = GlobalRateLimiter(redis.StrictRedis(db=0))
+        self.logger = get_forensic_logger()
+        
+        if not hasattr(self, 'providers') or not self.providers:
+            print("Providers not found after loading session, re-initializing...")
+            self._initialize_providers()
+        
+        if not hasattr(self, 'currently_processing'):
+            self.currently_processing = set()
         
         # Re-set stop events for providers
         if hasattr(self, 'providers'):
@@ -165,9 +194,10 @@ class Scanner:
                         attribute = getattr(module, attribute_name)
                         if isinstance(attribute, type) and issubclass(attribute, BaseProvider) and attribute is not BaseProvider:
                             provider_class = attribute
-                            provider_name = provider_class(session_config=self.config).get_name()
+                            provider = provider_class(name=attribute_name, session_config=self.config)
+                            provider_name = provider.get_name()
+
                             if self.config.is_provider_enabled(provider_name):
-                                provider = provider_class(session_config=self.config)
                                 if provider.is_available():
                                     provider.set_stop_event(self.stop_event)
                                     self.providers.append(provider)
@@ -188,29 +218,61 @@ class Scanner:
         self._initialize_providers()
         print("Session configuration updated")
 
-    def start_scan(self, target_domain: str, max_depth: int = 2, clear_graph: bool = True) -> bool:
-        """Start a new reconnaissance scan with immediate GUI feedback."""
+    def start_scan(self, target: str, max_depth: int = 2, clear_graph: bool = True, force_rescan_target: Optional[str] = None) -> bool:
+        """Start a new reconnaissance scan with proper cleanup of previous scans."""
         print(f"=== STARTING SCAN IN SCANNER {id(self)} ===")
         print(f"Session ID: {self.session_id}")
         print(f"Initial scanner status: {self.status}")
+        self.total_tasks_ever_enqueued = 0
 
-        # Clean up previous scan thread if needed
+        # **IMPROVED**: More aggressive cleanup of previous scan
         if self.scan_thread and self.scan_thread.is_alive():
-            print("A previous scan thread is still alive. Sending termination signal and waiting...")
-            self.stop_scan()
-            self.scan_thread.join(10.0)
+            print("A previous scan thread is still alive. Forcing termination...")
+            
+            # Set stop signals immediately
+            self._set_stop_signal()
+            self.status = ScanStatus.STOPPED
+            
+            # Clear all processing state
+            with self.processing_lock:
+                self.currently_processing.clear()
+            self.task_queue = PriorityQueue()
+            
+            # Shutdown executor aggressively
+            if self.executor:
+                print("Shutting down executor forcefully...")
+                self.executor.shutdown(wait=False, cancel_futures=True)
+                self.executor = None
+            
+            # Wait for thread termination with shorter timeout
+            print("Waiting for previous scan thread to terminate...")
+            self.scan_thread.join(5.0)  # Reduced from 10 seconds
             
             if self.scan_thread.is_alive():
-                print("ERROR: The previous scan thread is unresponsive and could not be stopped.")
-                self.status = ScanStatus.FAILED
-                self._update_session_state()
-                return False
-            print("Previous scan thread terminated successfully.")
+                print("WARNING: Previous scan thread is still alive after 5 seconds")
+                # Continue anyway, but log the issue
+                self.logger.logger.warning("Previous scan thread failed to terminate cleanly")
 
-        # Reset state for new scan
+        # Reset state for new scan with proper forensic logging
+        print("Resetting scanner state for new scan...")
         self.status = ScanStatus.IDLE
-        self._update_session_state()  # Update GUI immediately
-        print("Scanner state is now clean for a new scan.")
+        self.stop_event.clear()
+        
+        # **NEW**: Clear Redis stop signal explicitly
+        if self.session_id:
+            from core.session_manager import session_manager
+            session_manager.clear_stop_signal(self.session_id)
+        
+        with self.processing_lock:
+            self.currently_processing.clear()
+        
+        self.task_queue = PriorityQueue()
+        self.target_retries.clear()
+        self.scan_failed_due_to_retries = False
+        
+        # Update session state immediately for GUI feedback
+        self._update_session_state()
+        print("Scanner state reset complete.")
 
         try:
             if not hasattr(self, 'providers') or not self.providers:
@@ -221,28 +283,31 @@ class Scanner:
 
             if clear_graph:
                 self.graph.clear()
-            self.current_target = target_domain.lower().strip()
+
+            if force_rescan_target and self.graph.graph.has_node(force_rescan_target):
+                print(f"Forcing rescan of {force_rescan_target}, clearing provider states.")
+                node_data = self.graph.graph.nodes[force_rescan_target]
+                if 'metadata' in node_data and 'provider_states' in node_data['metadata']:
+                    node_data['metadata']['provider_states'] = {}
+
+            self.current_target = target.lower().strip()
             self.max_depth = max_depth
             self.current_depth = 0
             
-            # Clear both local and Redis stop signals
-            self.stop_event.clear()
-            if self.session_id:
-                from core.session_manager import session_manager
-                session_manager.clear_stop_signal(self.session_id)
-            
             self.total_indicators_found = 0
             self.indicators_processed = 0
+            self.indicators_completed = 0
+            self.tasks_re_enqueued = 0
             self.current_indicator = self.current_target
 
-            # Update GUI with scan preparation
+            # Update GUI with scan preparation state
             self._update_session_state()
 
             # Start new forensic session
             print(f"Starting new forensic session for scanner {id(self)}...")
             self.logger = new_session()
 
-            # Start scan in separate thread
+            # Start scan in a separate thread
             print(f"Starting scan thread for scanner {id(self)}...")
             self.scan_thread = threading.Thread(
                 target=self._execute_scan,
@@ -258,54 +323,124 @@ class Scanner:
             print(f"ERROR: Exception in start_scan for scanner {id(self)}: {e}")
             traceback.print_exc()
             self.status = ScanStatus.FAILED
-            self._update_session_state()  # Update failed status immediately
+            self._update_session_state() 
             return False
 
-    def _execute_scan(self, target_domain: str, max_depth: int) -> None:
-        """Execute the reconnaissance scan using a task queue-based approach."""
-        print(f"_execute_scan started for {target_domain} with depth {max_depth}")
-        self.executor = ThreadPoolExecutor(max_workers=self.max_workers)
-        processed_targets = set()
+    def _get_priority(self, provider_name):
+        rate_limit = self.config.get_rate_limit(provider_name)
+        if rate_limit > 90:
+            return 1 # Highest priority
+        elif rate_limit > 50:
+            return 2
+        else:
+            return 3 # Lowest priority
 
-        task_queue = deque([(target_domain, 0, False)])  # target, depth, is_large_entity_member
+    def _execute_scan(self, target: str, max_depth: int) -> None:
+        """Execute the reconnaissance scan with proper termination handling."""
+        print(f"_execute_scan started for {target} with depth {max_depth}")
+        self.executor = ThreadPoolExecutor(max_workers=self.max_workers)
+        processed_tasks = set()
+
+        # Initial task population for the main target
+        is_ip = _is_valid_ip(target)
+        initial_providers = self._get_eligible_providers(target, is_ip, False)
+        for provider in initial_providers:
+            provider_name = provider.get_name()
+            self.task_queue.put((self._get_priority(provider_name), (provider_name, target, 0)))
+            self.total_tasks_ever_enqueued += 1
 
         try:
             self.status = ScanStatus.RUNNING
             self._update_session_state()
 
             enabled_providers = [provider.get_name() for provider in self.providers]
-            self.logger.log_scan_start(target_domain, max_depth, enabled_providers)
-            self.graph.add_node(target_domain, NodeType.DOMAIN)
-            self._initialize_provider_states(target_domain)
+            self.logger.log_scan_start(target, max_depth, enabled_providers)
 
-            while task_queue:
-                if self._is_stop_requested():
-                    print("Stop requested, terminating scan.")
+            # Determine initial node type
+            node_type = NodeType.IP if is_ip else NodeType.DOMAIN
+            self.graph.add_node(target, node_type)
+
+            self._initialize_provider_states(target)
+
+            # Better termination checking in main loop
+            while not self.task_queue.empty() and not self._is_stop_requested():
+                try:
+                    priority, (provider_name, target_item, depth) = self.task_queue.get()
+                except IndexError:
+                    # Queue became empty during processing
                     break
 
-                target, depth, is_large_entity_member = task_queue.popleft()
-
-                if target in processed_targets:
+                task_tuple = (provider_name, target_item)
+                if task_tuple in processed_tasks:
                     continue
 
                 if depth > max_depth:
                     continue
 
+                if self.rate_limiter.is_rate_limited(provider_name, self.config.get_rate_limit(provider_name), 60):
+                    self.task_queue.put((priority + 1, (provider_name, target_item, depth))) # Postpone
+                    continue
+
+                with self.processing_lock:
+                    if self._is_stop_requested():
+                        print(f"Stop requested before processing {target_item}")
+                        break
+                    self.currently_processing.add(target_item)
+
+                try:
                     self.current_depth = depth
-                self.current_indicator = target
+                    self.current_indicator = target_item
                     self._update_session_state()
 
-                new_targets, large_entity_members = self._query_providers_for_target(target, depth, is_large_entity_member)
-                processed_targets.add(target)
+                    if self._is_stop_requested():
+                        print(f"Stop requested during processing setup for {target_item}")
+                        break
                     
-                for new_target in new_targets:
-                    if new_target not in processed_targets:
-                        task_queue.append((new_target, depth + 1, False))
+                    provider = next((p for p in self.providers if p.get_name() == provider_name), None)
 
-                for member in large_entity_members:
-                    if member not in processed_targets:
-                        task_queue.append((member, depth, True))
+                    if provider:
+                        new_targets, large_entity_members, success = self._query_single_provider_for_target(provider, target_item, depth)
 
+                        if self._is_stop_requested():
+                            print(f"Stop requested after querying providers for {target_item}")
+                            break
+
+                        if not success:
+                            self.target_retries[task_tuple] += 1
+                            if self.target_retries[task_tuple] <= self.config.max_retries_per_target:
+                                print(f"Re-queueing task {task_tuple} (attempt {self.target_retries[task_tuple]})")
+                                self.task_queue.put((priority, (provider_name, target_item, depth)))
+                                self.tasks_re_enqueued += 1
+                                self.total_tasks_ever_enqueued += 1
+                            else:
+                                print(f"ERROR: Max retries exceeded for task {task_tuple}")
+                                self.scan_failed_due_to_retries = True
+                                self._log_target_processing_error(str(task_tuple), "Max retries exceeded")
+                        else:
+                            processed_tasks.add(task_tuple)
+                            self.indicators_completed += 1
+
+                        if not self._is_stop_requested():
+                            all_new_targets = new_targets.union(large_entity_members)
+                            for new_target in all_new_targets:
+                                is_ip_new = _is_valid_ip(new_target)
+                                eligible_providers_new = self._get_eligible_providers(new_target, is_ip_new, False)
+                                for p_new in eligible_providers_new:
+                                    p_name_new = p_new.get_name()
+                                    if (p_name_new, new_target) not in processed_tasks:
+                                        new_depth = depth + 1 if new_target in new_targets else depth
+                                        self.task_queue.put((self._get_priority(p_name_new), (p_name_new, new_target, new_depth)))
+                                        self.total_tasks_ever_enqueued += 1
+                finally:
+                    with self.processing_lock:
+                        self.currently_processing.discard(target_item)
+
+            if self._is_stop_requested():
+                print("Scan terminated due to stop request")
+                self.logger.logger.info("Scan terminated by user request")
+            elif self.task_queue.empty():
+                print("Scan completed - no more targets to process")
+                self.logger.logger.info("Scan completed - all targets processed")
 
         except Exception as e:
             print(f"ERROR: Scan execution failed with error: {e}")
@@ -313,8 +448,13 @@ class Scanner:
             self.status = ScanStatus.FAILED
             self.logger.logger.error(f"Scan failed: {e}")
         finally:
+            with self.processing_lock:
+                self.currently_processing.clear()
+
             if self._is_stop_requested():
                 self.status = ScanStatus.STOPPED
+            elif self.scan_failed_due_to_retries:
+                self.status = ScanStatus.FAILED
             else:
                 self.status = ScanStatus.COMPLETED
 
@@ -322,21 +462,21 @@ class Scanner:
             self.logger.log_scan_complete()
             if self.executor:
                 self.executor.shutdown(wait=False, cancel_futures=True)
+                self.executor = None
             stats = self.graph.get_statistics()
             print("Final scan statistics:")
             print(f"  - Total nodes: {stats['basic_metrics']['total_nodes']}")
             print(f"  - Total edges: {stats['basic_metrics']['total_edges']}")
-            print(f"  - Targets processed: {len(processed_targets)}")
+            print(f"  - Tasks processed: {len(processed_tasks)}")
+
+    def _query_single_provider_for_target(self, provider: BaseProvider, target: str, depth: int) -> Tuple[Set[str], Set[str], bool]:
+        if self._is_stop_requested():
+            print(f"Stop requested before querying {provider.get_name()} for {target}")
+            return set(), set(), False
 
-    def _query_providers_for_target(self, target: str, depth: int, dns_only: bool = False) -> Tuple[Set[str], Set[str]]:
-        """Helper method to query providers for a single target."""
         is_ip = _is_valid_ip(target)
         target_type = NodeType.IP if is_ip else NodeType.DOMAIN
-        print(f"Querying providers for {target_type.value}: {target} at depth {depth}")
-
-        if self._is_stop_requested():
-            print(f"Stop requested before querying providers for {target}")
-            return set(), set()
+        print(f"Querying {provider.get_name()} for {target_type.value}: {target} at depth {depth}")
 
         self.graph.add_node(target, target_type)
         self._initialize_provider_states(target)
@@ -344,38 +484,79 @@ class Scanner:
         new_targets = set()
         large_entity_members = set()
         node_attributes = defaultdict(lambda: defaultdict(list))
-
-        eligible_providers = self._get_eligible_providers(target, is_ip, dns_only)
-        
-        if not eligible_providers:
-            self._log_no_eligible_providers(target, is_ip)
-            return new_targets, large_entity_members
-
-        for provider in eligible_providers:
-            if self._is_stop_requested():
-                print(f"Stop requested while querying providers for {target}")
-                break
+        provider_successful = True
 
         try:
             provider_results = self._query_single_provider_forensic(provider, target, is_ip, depth)
-                if provider_results and not self._is_stop_requested():
-                    discovered, is_large_entity = self._process_provider_results_forensic(
+            if provider_results is None:
+                provider_successful = False
+            elif not self._is_stop_requested():
+                discovered, is_large_entity = self._process_provider_results(
                     target, provider, provider_results, node_attributes, depth
                 )
                 if is_large_entity:
                     large_entity_members.update(discovered)
                 else:
                     new_targets.update(discovered)
+            else:
+                print(f"Stop requested after processing results from {provider.get_name()}")
         except Exception as e:
+            provider_successful = False
             self._log_provider_error(target, provider.get_name(), str(e))
 
+        if not self._is_stop_requested():
             for node_id, attributes in node_attributes.items():
                 if self.graph.graph.has_node(node_id):
                     node_is_ip = _is_valid_ip(node_id)
                     node_type_to_add = NodeType.IP if node_is_ip else NodeType.DOMAIN
                     self.graph.add_node(node_id, node_type_to_add, attributes=attributes)
 
-        return new_targets, large_entity_members
+        return new_targets, large_entity_members, provider_successful
+
+    def stop_scan(self) -> bool:
+        """Request immediate scan termination with proper cleanup."""
+        try:
+            print("=== INITIATING IMMEDIATE SCAN TERMINATION ===")
+            self.logger.logger.info("Scan termination requested by user")
+            
+            # **IMPROVED**: More aggressive stop signal setting
+            self._set_stop_signal()
+            self.status = ScanStatus.STOPPED
+            
+            # **NEW**: Clear processing state immediately
+            with self.processing_lock:
+                currently_processing_copy = self.currently_processing.copy()
+                self.currently_processing.clear()
+                print(f"Cleared {len(currently_processing_copy)} currently processing targets: {currently_processing_copy}")
+            
+            # **IMPROVED**: Clear task queue and log what was discarded
+            discarded_tasks = []
+            while not self.task_queue.empty():
+                discarded_tasks.append(self.task_queue.get())
+            self.task_queue = PriorityQueue()
+            print(f"Discarded {len(discarded_tasks)} pending tasks")
+            
+            # **IMPROVED**: Aggressively shut down executor
+            if self.executor:
+                print("Shutting down executor with immediate cancellation...")
+                try:
+                    # Cancel all pending futures
+                    self.executor.shutdown(wait=False, cancel_futures=True)
+                    print("Executor shutdown completed")
+                except Exception as e:
+                    print(f"Error during executor shutdown: {e}")
+
+            # Immediately update GUI with stopped status
+            self._update_session_state()
+
+            print("Termination signals sent. The scan will stop as soon as possible.")
+            return True
+            
+        except Exception as e:
+            print(f"ERROR: Exception in stop_scan: {e}")
+            self.logger.logger.error(f"Error during scan termination: {e}")
+            traceback.print_exc()
+            return False
 
     def _update_session_state(self) -> None:
         """
@@ -391,6 +572,50 @@ class Scanner:
             except Exception as e:
                 print(f"ERROR: Failed to update session state: {e}")
 
+    def get_scan_status(self) -> Dict[str, Any]:
+        """Get current scan status with processing information."""
+        try:
+            with self.processing_lock:
+                currently_processing_count = len(self.currently_processing)
+                currently_processing_list = list(self.currently_processing)
+            
+            return {
+                'status': self.status,
+                'target_domain': self.current_target,
+                'current_depth': self.current_depth,
+                'max_depth': self.max_depth,
+                'current_indicator': self.current_indicator,
+                'indicators_processed': self.indicators_processed,
+                'indicators_completed': self.indicators_completed,
+                'tasks_re_enqueued': self.tasks_re_enqueued,
+                'progress_percentage': self._calculate_progress(),
+                'total_tasks_ever_enqueued': self.total_tasks_ever_enqueued,
+                'enabled_providers': [provider.get_name() for provider in self.providers],
+                'graph_statistics': self.graph.get_statistics(),
+                'task_queue_size': self.task_queue.qsize(),
+                'currently_processing_count': currently_processing_count,
+                'currently_processing': currently_processing_list[:5]
+            }
+        except Exception as e:
+            print(f"ERROR: Exception in get_scan_status: {e}")
+            traceback.print_exc()
+            return {
+                'status': 'error',
+                'target_domain': None,
+                'current_depth': 0,
+                'max_depth': 0,
+                'current_indicator': '',
+                'indicators_processed': 0,
+                'indicators_completed': 0,
+                'tasks_re_enqueued': 0,
+                'progress_percentage': 0.0,
+                'enabled_providers': [],
+                'graph_statistics': {},
+                'task_queue_size': 0,
+                'currently_processing_count': 0,
+                'currently_processing': []
+            }
+
     def _initialize_provider_states(self, target: str) -> None:
         """Initialize provider states for forensic tracking."""
         if not self.graph.graph.has_node(target):
@@ -420,22 +645,25 @@ class Scanner:
         return eligible
 
     def _already_queried_provider(self, target: str, provider_name: str) -> bool:
-        """Check if we already queried a provider for a target."""
+        """Check if we already successfully queried a provider for a target."""
         if not self.graph.graph.has_node(target):
             return False
             
         node_data = self.graph.graph.nodes[target]
         provider_states = node_data.get('metadata', {}).get('provider_states', {})
-        return provider_name in provider_states
         
-    def _query_single_provider_forensic(self, provider, target: str, is_ip: bool, current_depth: int) -> List:
+        # A provider has been successfully queried if a state exists and its status is 'success'
+        provider_state = provider_states.get(provider_name)
+        return provider_state is not None and provider_state.get('status') == 'success'
+
+    def _query_single_provider_forensic(self, provider, target: str, is_ip: bool, current_depth: int) -> Optional[List]:
         """Query a single provider with stop signal checking."""
         provider_name = provider.get_name()
         start_time = datetime.now(timezone.utc)
         
         if self._is_stop_requested():
             print(f"Stop requested before querying {provider_name} for {target}")
-            return []
+            return None
         
         print(f"Querying {provider_name} for {target}")
         
@@ -449,7 +677,7 @@ class Scanner:
             
             if self._is_stop_requested():
                 print(f"Stop requested after querying {provider_name} for {target}")
-                return []
+                return None
             
             self._update_provider_state(target, provider_name, 'success', len(results), None, start_time)
             
@@ -459,10 +687,10 @@ class Scanner:
         except Exception as e:
             self._update_provider_state(target, provider_name, 'failed', 0, str(e), start_time)
             print(f"✗ {provider_name} failed for {target}: {e}")
-            return []
+            return None
 
     def _update_provider_state(self, target: str, provider_name: str, status: str, 
-                              results_count: int, error: str, start_time: datetime) -> None:
+                              results_count: int, error: Optional[str], start_time: datetime) -> None:
         """Update provider state in node metadata for forensic tracking."""
         if not self.graph.graph.has_node(target):
             return
@@ -483,7 +711,7 @@ class Scanner:
         
         self.logger.logger.info(f"Provider state updated: {target} -> {provider_name} -> {status} ({results_count} results)")
 
-    def _process_provider_results_forensic(self, target: str, provider, results: List,
+    def _process_provider_results(self, target: str, provider, results: List,
                                         node_attributes: Dict, current_depth: int) -> Tuple[Set[str], bool]:
         """Process provider results, returns (discovered_targets, is_large_entity)."""
         provider_name = provider.get_name()
@@ -499,7 +727,7 @@ class Scanner:
             return members, True
 
         for i, (source, rel_target, rel_type, confidence, raw_data) in enumerate(results):
-            if i % 10 == 0 and self._is_stop_requested():
+            if i % 5 == 0 and self._is_stop_requested():  # Check more frequently
                 print(f"Stop requested while processing results from {provider_name} for {target}")
                 break
 
@@ -513,9 +741,30 @@ class Scanner:
                 discovery_method=f"{provider_name}_query_depth_{current_depth}"
             )
 
+            # Collect attributes for the source node
             self._collect_node_attributes(source, provider_name, rel_type, rel_target, raw_data, node_attributes[source])
 
-            if _is_valid_ip(rel_target):
+            # If the relationship is asn_membership, collect attributes for the target ASN node
+            if rel_type == 'asn_membership':
+                self._collect_node_attributes(rel_target, provider_name, rel_type, source, raw_data, node_attributes[rel_target])
+
+
+            if isinstance(rel_target, list):
+                # If the target is a list, iterate and process each item
+                for single_target in rel_target:
+                    if _is_valid_ip(single_target):
+                        self.graph.add_node(single_target, NodeType.IP)
+                        if self.graph.add_edge(source, single_target, rel_type, confidence, provider_name, raw_data):
+                            print(f"Added IP relationship: {source} -> {single_target} ({rel_type})")
+                        discovered_targets.add(single_target)
+                    elif _is_valid_domain(single_target):
+                        self.graph.add_node(single_target, NodeType.DOMAIN)
+                        if self.graph.add_edge(source, single_target, rel_type, confidence, provider_name, raw_data):
+                            print(f"Added domain relationship: {source} -> {single_target} ({rel_type})")
+                        discovered_targets.add(single_target)
+                        self._collect_node_attributes(single_target, provider_name, rel_type, source, raw_data, node_attributes[single_target])
+
+            elif _is_valid_ip(rel_target):
                 self.graph.add_node(rel_target, NodeType.IP)
                 if self.graph.add_edge(source, rel_target, rel_type, confidence, provider_name, raw_data):
                     print(f"Added IP relationship: {source} -> {rel_target} ({rel_type})")
@@ -551,6 +800,7 @@ class Scanner:
             elif _is_valid_ip(targets[0]):
                 node_type = 'ip'
         
+        # We still create the nodes so they exist in the graph, they are just not processed for edges yet.
         for target in targets:
             self.graph.add_node(target, NodeType.DOMAIN if node_type == 'domain' else NodeType.IP)
 
@@ -576,6 +826,73 @@ class Scanner:
         
         return set(targets)
 
+    def extract_node_from_large_entity(self, large_entity_id: str, node_id_to_extract: str) -> bool:
+        """
+        Extracts a node from a large entity, re-creates its original edge, and
+        re-queues it for full scanning.
+        """
+        if not self.graph.graph.has_node(large_entity_id):
+            print(f"ERROR: Large entity {large_entity_id} not found.")
+            return False
+
+        # 1. Get the original source node that discovered the large entity
+        predecessors = list(self.graph.graph.predecessors(large_entity_id))
+        if not predecessors:
+            print(f"ERROR: No source node found for large entity {large_entity_id}.")
+            return False
+        source_node_id = predecessors[0]
+        
+        # Get the original edge data to replicate it for the extracted node
+        original_edge_data = self.graph.graph.get_edge_data(source_node_id, large_entity_id)
+        if not original_edge_data:
+             print(f"ERROR: Could not find original edge data from {source_node_id} to {large_entity_id}.")
+             return False
+
+        # 2. Modify the graph data structure first
+        success = self.graph.extract_node_from_large_entity(large_entity_id, node_id_to_extract)
+        if not success:
+            print(f"ERROR: Node {node_id_to_extract} could not be removed from {large_entity_id}'s attributes.")
+            return False
+
+        # 3. Create the direct edge from the original source to the newly extracted node
+        print(f"Re-creating direct edge from {source_node_id} to extracted node {node_id_to_extract}")
+        self.graph.add_edge(
+            source_id=source_node_id,
+            target_id=node_id_to_extract,
+            relationship_type=original_edge_data.get('relationship_type', 'extracted_from_large_entity'),
+            confidence_score=original_edge_data.get('confidence_score', 0.85), # Slightly lower confidence
+            source_provider=original_edge_data.get('source_provider', 'unknown'),
+            raw_data={'context': f'Extracted from large entity {large_entity_id}'}
+        )
+
+        # 4. Re-queue the extracted node for full processing by all eligible providers
+        print(f"Re-queueing extracted node {node_id_to_extract} for full reconnaissance...")
+        is_ip = _is_valid_ip(node_id_to_extract)
+        current_depth = self.graph.graph.nodes[large_entity_id].get('attributes', {}).get('discovery_depth', 0)
+        
+        eligible_providers = self._get_eligible_providers(node_id_to_extract, is_ip, False)
+        for provider in eligible_providers:
+            provider_name = provider.get_name()
+            self.task_queue.put((self._get_priority(provider_name), (provider_name, node_id_to_extract, current_depth)))
+            self.total_tasks_ever_enqueued += 1
+
+        # 5. If the scanner is not running, we need to kickstart it to process this one item.
+        if self.status != ScanStatus.RUNNING:
+            print("Scanner is idle. Starting a mini-scan to process the extracted node.")
+            self.status = ScanStatus.RUNNING
+            self._update_session_state()
+            
+            if not self.scan_thread or not self.scan_thread.is_alive():
+                 self.scan_thread = threading.Thread(
+                    target=self._execute_scan,
+                    args=(self.current_target, self.max_depth),
+                    daemon=True
+                )
+                 self.scan_thread.start()
+
+        print(f"Successfully extracted and re-queued {node_id_to_extract} from {large_entity_id}.")
+        return True
+
     def _collect_node_attributes(self, node_id: str, provider_name: str, rel_type: str,
                                     target: str, raw_data: Dict[str, Any], attributes: Dict[str, Any]) -> None:
         """Collect and organize attributes for a node."""
@@ -598,18 +915,22 @@ class Scanner:
                         attributes.setdefault('related_domains_san', []).append(target)
 
         elif provider_name == 'shodan':
+            # This logic will now apply to the correct node (ASN or IP)
             shodan_attributes = attributes.setdefault('shodan', {})
             for key, value in raw_data.items():
                 if key not in shodan_attributes or not shodan_attributes.get(key):
                     shodan_attributes[key] = value
 
+            if _is_valid_ip(node_id):
+                if 'ports' in raw_data:
+                    attributes['ports'] = raw_data['ports']
+                if 'os' in raw_data and raw_data['os']:
+                    attributes['os'] = raw_data['os']
+
         if rel_type == "asn_membership":
-            attributes['asn'] = {
-                'id': target,
-                'description': raw_data.get('org', ''),
-                'isp': raw_data.get('isp', ''),
-                'country': raw_data.get('country', '')
-            }
+            # This is the key change: these attributes are for the target (the ASN),
+            # not the source (the IP). We will add them to the ASN node later.
+            pass
         
         record_type_name = rel_type
         if record_type_name not in attributes:
@@ -621,7 +942,6 @@ class Scanner:
             if target not in attributes[record_type_name]:
                 attributes[record_type_name].append(target)
 
-
     def _log_target_processing_error(self, target: str, error: str) -> None:
         """Log target processing errors for forensic trail."""
         self.logger.logger.error(f"Target processing failed for {target}: {error}")
@@ -635,69 +955,11 @@ class Scanner:
         target_type = 'IP' if is_ip else 'domain'
         self.logger.logger.warning(f"No eligible providers for {target_type}: {target}")
 
-    def stop_scan(self) -> bool:
-        """Request immediate scan termination with immediate GUI feedback."""
-        try:
-            print("=== INITIATING IMMEDIATE SCAN TERMINATION ===")
-            self.logger.logger.info("Scan termination requested by user")
-            
-            # Set both local and Redis stop signals
-            self._set_stop_signal()
-            self.status = ScanStatus.STOPPED
-            
-            # Immediately update GUI with stopped status
-            self._update_session_state()
-
-            # Cancel executor futures if running
-            if self.executor:
-                print("Shutting down executor with immediate cancellation...")
-                self.executor.shutdown(wait=False, cancel_futures=True)
-
-            print("Termination signals sent. The scan will stop as soon as possible.")
-            return True
-            
-        except Exception as e:
-            print(f"ERROR: Exception in stop_scan: {e}")
-            self.logger.logger.error(f"Error during scan termination: {e}")
-            traceback.print_exc()
-            return False
-
-    def get_scan_status(self) -> Dict[str, Any]:
-        """Get current scan status with forensic information."""
-        try:
-            return {
-                'status': self.status,
-                'target_domain': self.current_target,
-                'current_depth': self.current_depth,
-                'max_depth': self.max_depth,
-                'current_indicator': self.current_indicator,
-                'total_indicators_found': self.total_indicators_found,
-                'indicators_processed': self.indicators_processed,
-                'progress_percentage': self._calculate_progress(),
-                'enabled_providers': [provider.get_name() for provider in self.providers],
-                'graph_statistics': self.graph.get_statistics()
-            }
-        except Exception as e:
-            print(f"ERROR: Exception in get_scan_status: {e}")
-            traceback.print_exc()
-            return {
-                'status': 'error',
-                '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': {}
-            }
-
     def _calculate_progress(self) -> float:
-        """Calculate scan progress percentage."""
-        if self.total_indicators_found == 0:
+        """Calculate scan progress percentage based on task completion."""
+        if self.total_tasks_ever_enqueued == 0:
             return 0.0
-        return min(100.0, (self.indicators_processed / self.total_indicators_found) * 100)
+        return min(100.0, (self.indicators_completed / self.total_tasks_ever_enqueued) * 100)
 
     def get_graph_data(self) -> Dict[str, Any]:
         """Get current graph data for visualization."""
@@ -748,7 +1010,7 @@ class Scanner:
                         if isinstance(attribute, type) and issubclass(attribute, BaseProvider) and attribute is not BaseProvider:
                             provider_class = attribute
                             # Instantiate to get metadata, even if not fully configured
-                            temp_provider = provider_class(session_config=self.config)
+                            temp_provider = provider_class(name=attribute_name, session_config=self.config)
                             provider_name = temp_provider.get_name()
                             
                             # Find the actual provider instance if it exists, to get live stats

core/session_config.py

@@ -3,11 +3,9 @@ Per-session configuration management for DNSRecon.
 Provides isolated configuration instances for each user session.
 """
 
-import os
-from typing import Dict, Optional
+from config import Config
 
-
-class SessionConfig:
+class SessionConfig(Config):
     """
     Session-specific configuration that inherits from global config
     but maintains isolated API keys and provider settings.
@@ -15,106 +13,8 @@ class SessionConfig:
     
     def __init__(self):
         """Initialize session config with global defaults."""
-        # Copy all attributes from global config
-        self.api_keys: Dict[str, Optional[str]] = {
-            'shodan': None
-        }
+        super().__init__()
 
-        # Default settings (copied from global config)
-        self.default_recursion_depth = 2
-        self.default_timeout = 30
-        self.max_concurrent_requests = 5
-        self.large_entity_threshold = 100
-        
-        # Rate limiting settings (per session)
-        self.rate_limits = {
-            'crtsh': 60,
-            'shodan': 60,
-            'dns': 100
-        }
-        
-        # Provider settings (per session)
-        self.enabled_providers = {
-            'crtsh': True,
-            'dns': True,
-            'shodan': False
-        }
-        
-        # Logging configuration
-        self.log_level = 'INFO'
-        self.log_format = '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
-        
-        # Flask configuration (shared)
-        self.flask_host = '127.0.0.1'
-        self.flask_port = 5000
-        self.flask_debug = True
-    
-    def set_api_key(self, provider: str, api_key: str) -> bool:
-        """
-        Set API key for a provider in this session.
-        
-        Args:
-            provider: Provider name (shodan, etc)
-            api_key: API key string
-            
-        Returns:
-            bool: True if key was set successfully
-        """
-        if provider in self.api_keys:
-            self.api_keys[provider] = api_key
-            self.enabled_providers[provider] = True if api_key else False
-            return True
-        return False
-    
-    def get_api_key(self, provider: str) -> Optional[str]:
-        """
-        Get API key for a provider in this session.
-        
-        Args:
-            provider: Provider name
-            
-        Returns:
-            API key or None if not set
-        """
-        return self.api_keys.get(provider)
-    
-    def is_provider_enabled(self, provider: str) -> bool:
-        """
-        Check if a provider is enabled in this session.
-        
-        Args:
-            provider: Provider name
-            
-        Returns:
-            bool: True if provider is enabled
-        """
-        return self.enabled_providers.get(provider, False)
-    
-    def get_rate_limit(self, provider: str) -> int:
-        """
-        Get rate limit for a provider in this session.
-        
-        Args:
-            provider: Provider name
-            
-        Returns:
-            Rate limit in requests per minute
-        """
-        return self.rate_limits.get(provider, 60)
-    
-    def load_from_env(self):
-        """Load configuration from environment variables (only if not already set)."""
-        if os.getenv('SHODAN_API_KEY') and not self.api_keys['shodan']:
-            self.set_api_key('shodan', os.getenv('SHODAN_API_KEY'))
-        
-        # Override default settings from environment
-        self.default_recursion_depth = int(os.getenv('DEFAULT_RECURSION_DEPTH', '2'))
-        self.default_timeout = 30
-        self.max_concurrent_requests = 5
-
-
-def create_session_config() -> SessionConfig:
+def create_session_config() -> 'SessionConfig':
     """Create a new session configuration instance."""
-    session_config = SessionConfig()
-    session_config.load_from_env()
-    return session_config
+    return SessionConfig()

core/session_manager.py

@@ -8,6 +8,7 @@ import pickle
 from typing import Dict, Optional, Any, List
 
 from core.scanner import Scanner
+from config import config
 
 # WARNING: Using pickle can be a security risk if the data source is not trusted.
 # In this case, we are only serializing/deserializing our own trusted Scanner objects,
@@ -18,10 +19,13 @@ class SessionManager:
     Manages multiple scanner instances for concurrent user sessions using Redis.
     """
     
-    def __init__(self, session_timeout_minutes: int = 60):
+    def __init__(self, session_timeout_minutes: int = 0):
         """
         Initialize session manager with a Redis backend.
         """
+        if session_timeout_minutes is None:
+            session_timeout_minutes = config.session_timeout_minutes
+
         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
@@ -355,31 +359,6 @@ class SessionManager:
             
             time.sleep(300)  # Sleep for 5 minutes
 
-    def list_active_sessions(self) -> List[Dict[str, Any]]:
-        """List all active sessions for admin purposes."""
-        try:
-            session_keys = self.redis_client.keys("dnsrecon:session:*")
-            sessions = []
-            
-            for session_key in session_keys:
-                session_id = session_key.decode('utf-8').split(':')[-1]
-                session_data = self._get_session_data(session_id)
-                
-                if session_data:
-                    scanner = session_data.get('scanner')
-                    sessions.append({
-                        'session_id': session_id,
-                        'created_at': session_data.get('created_at'),
-                        'last_activity': session_data.get('last_activity'),
-                        'scanner_status': scanner.status if scanner else 'unknown',
-                        'current_target': scanner.current_target if scanner else None
-                    })
-            
-            return sessions
-        except Exception as e:
-            print(f"ERROR: Failed to list active sessions: {e}")
-            return []
-
     def get_statistics(self) -> Dict[str, Any]:
         """Get session manager statistics."""
         try:

providers/__init__.py

@@ -3,14 +3,15 @@ Data provider modules for DNSRecon.
 Contains implementations for various reconnaissance data sources.
 """
 
-from .base_provider import BaseProvider, RateLimiter
+from .base_provider import BaseProvider
 from .crtsh_provider import CrtShProvider
 from .dns_provider import DNSProvider
 from .shodan_provider import ShodanProvider
+from core.rate_limiter import GlobalRateLimiter
 
 __all__ = [
     'BaseProvider',
-    'RateLimiter', 
+    'GlobalRateLimiter', 
     'CrtShProvider',
     'DNSProvider',
     'ShodanProvider'

providers/base_provider.py

@@ -3,46 +3,11 @@
 import time
 import requests
 import threading
-import os
-import json
 from abc import ABC, abstractmethod
 from typing import List, Dict, Any, Optional, Tuple
 
 from core.logger import get_forensic_logger
-
-
-class RateLimiter:
-    """Simple rate limiter for API calls."""
-
-    def __init__(self, requests_per_minute: int):
-        """
-        Initialize rate limiter.
-
-        Args:
-            requests_per_minute: Maximum requests allowed per minute
-        """
-        self.requests_per_minute = requests_per_minute
-        self.min_interval = 60.0 / requests_per_minute
-        self.last_request_time = 0
-
-    def __getstate__(self):
-        """RateLimiter is fully picklable, return full state."""
-        return self.__dict__.copy()
-
-    def __setstate__(self, state):
-        """Restore RateLimiter state."""
-        self.__dict__.update(state)
-
-    def wait_if_needed(self) -> None:
-        """Wait if necessary to respect rate limits."""
-        current_time = time.time()
-        time_since_last = current_time - self.last_request_time
-
-        if time_since_last < self.min_interval:
-            sleep_time = self.min_interval - time_since_last
-            time.sleep(sleep_time)
-
-        self.last_request_time = time.time()
+from core.rate_limiter import GlobalRateLimiter
 
 
 class BaseProvider(ABC):
@@ -70,30 +35,20 @@ class BaseProvider(ABC):
             # Fallback to global config for backwards compatibility
             from config import config as global_config
             self.config = global_config
-            actual_rate_limit = rate_limit
             actual_timeout = timeout
 
         self.name = name
-        self.rate_limiter = RateLimiter(actual_rate_limit)
         self.timeout = actual_timeout
         self._local = threading.local()
         self.logger = get_forensic_logger()
         self._stop_event = None
 
-        # Caching configuration (per session)
-        self.cache_dir = f'.cache/{id(self.config)}'  # Unique cache per session config
-        self.cache_expiry = 12 * 3600  # 12 hours in seconds
-        if not os.path.exists(self.cache_dir):
-            os.makedirs(self.cache_dir)
-
         # Statistics (per provider instance)
         self.total_requests = 0
         self.successful_requests = 0
         self.failed_requests = 0
         self.total_relationships_found = 0
 
-        print(f"Initialized {name} provider with session-specific config (rate: {actual_rate_limit}/min)")
-
     def __getstate__(self):
         """Prepare BaseProvider for pickling by excluding unpicklable objects."""
         state = self.__dict__.copy()
@@ -174,54 +129,14 @@ class BaseProvider(ABC):
     def make_request(self, url: str, method: str = "GET",
                     params: Optional[Dict[str, Any]] = None,
                     headers: Optional[Dict[str, str]] = None,
-                    target_indicator: str = "",
-                    max_retries: int = 3) -> Optional[requests.Response]:
+                    target_indicator: str = "") -> Optional[requests.Response]:
         """
-        Make a rate-limited HTTP request with aggressive stop signal handling.
-        Terminates immediately when stop is requested, including during retries.
+        Make a rate-limited HTTP request.
         """
-        # Check for cancellation before starting
         if self._is_stop_requested():
             print(f"Request cancelled before start: {url}")
             return None
 
-        # Create a unique cache key
-        cache_key = f"{self.name}_{hash(f'{method}:{url}:{json.dumps(params, sort_keys=True)}')}.json"
-        cache_path = os.path.join(self.cache_dir, cache_key)
-
-        # Check cache
-        if os.path.exists(cache_path):
-            cache_age = time.time() - os.path.getmtime(cache_path)
-            if cache_age < self.cache_expiry:
-                print(f"Returning cached response for: {url}")
-                with open(cache_path, 'r') as f:
-                    cached_data = json.load(f)
-                    response = requests.Response()
-                    response.status_code = cached_data['status_code']
-                    response._content = cached_data['content'].encode('utf-8')
-                    response.headers = cached_data['headers']
-                    return response
-
-        # Determine effective max_retries based on stop signal
-        effective_max_retries = 0 if self._is_stop_requested() else max_retries
-        last_exception = None
-
-        for attempt in range(effective_max_retries + 1):
-            # AGGRESSIVE: Check for cancellation before each attempt
-            if self._is_stop_requested():
-                print(f"Request cancelled during attempt {attempt + 1}: {url}")
-                return None
-
-            # Apply rate limiting with cancellation awareness
-            if not self._wait_with_cancellation_check():
-                print(f"Request cancelled during rate limiting: {url}")
-                return None
-
-            # AGGRESSIVE: Final check before making HTTP request
-            if self._is_stop_requested():
-                print(f"Request cancelled before HTTP call: {url}")
-                return None
-
         start_time = time.time()
         response = None
         error = None
@@ -229,33 +144,25 @@ class BaseProvider(ABC):
         try:
             self.total_requests += 1
 
-                # Prepare request
-                request_headers = self.session.headers.copy()
+            request_headers = dict(self.session.headers).copy()
             if headers:
                 request_headers.update(headers)
 
-                print(f"Making {method} request to: {url} (attempt {attempt + 1})")
+            print(f"Making {method} request to: {url}")
 
-                # AGGRESSIVE: Use much shorter timeout if termination is requested
-                request_timeout = self.timeout
-                if self._is_stop_requested():
-                    request_timeout = 2  # Max 2 seconds if termination requested
-                    print(f"Stop requested - using short timeout: {request_timeout}s")
-
-                # Make request
             if method.upper() == "GET":
                 response = self.session.get(
                     url,
                     params=params,
                     headers=request_headers,
-                        timeout=request_timeout
+                    timeout=self.timeout
                 )
             elif method.upper() == "POST":
                 response = self.session.post(
                     url,
                     json=params,
                     headers=request_headers,
-                        timeout=request_timeout
+                    timeout=self.timeout
                 )
             else:
                 raise ValueError(f"Unsupported HTTP method: {method}")
@@ -264,7 +171,6 @@ class BaseProvider(ABC):
             response.raise_for_status()
             self.successful_requests += 1
             
-                # Success - log, cache, and return
             duration_ms = (time.time() - start_time) * 1000
             self.logger.log_api_request(
                 provider=self.name,
@@ -276,53 +182,12 @@ class BaseProvider(ABC):
                 error=None,
                 target_indicator=target_indicator
             )
-                # Cache the successful response to disk
-                with open(cache_path, 'w') as f:
-                    json.dump({
-                        'status_code': response.status_code,
-                        'content': response.text,
-                        'headers': dict(response.headers)
-                    }, f)
+            
             return response
 
         except requests.exceptions.RequestException as e:
             error = str(e)
             self.failed_requests += 1
-                print(f"Request failed (attempt {attempt + 1}): {error}")
-                last_exception = e
-                
-                # AGGRESSIVE: Immediately abort retries if stop requested
-                if self._is_stop_requested():
-                    print(f"Stop requested - aborting retries for: {url}")
-                    break
-                
-                # Check if we should retry (but only if stop not requested)
-                if attempt < effective_max_retries and self._should_retry(e):
-                    # Use a longer, more respectful backoff for 429 errors
-                    if isinstance(e, requests.exceptions.HTTPError) and e.response and e.response.status_code == 429:
-                        # Start with a 10-second backoff and increase exponentially
-                        backoff_time = 10 * (2 ** attempt)
-                        print(f"Rate limit hit. Retrying in {backoff_time} seconds...")
-                    else:
-                        backoff_time = min(1.0, (2 ** attempt) * 0.5)  # Shorter backoff for other errors
-                        print(f"Retrying in {backoff_time} seconds...")
-                    
-                    # AGGRESSIVE: Much shorter backoff and more frequent checking
-                    if not self._sleep_with_cancellation_check(backoff_time):
-                        print(f"Stop requested during backoff - aborting: {url}")
-                        return None
-                    continue
-                else:
-                    break
-
-            except Exception as e:
-                error = f"Unexpected error: {str(e)}"
-                self.failed_requests += 1
-                print(f"Unexpected error: {error}")
-                last_exception = e
-                break
-
-        # All attempts failed - log and return None
             duration_ms = (time.time() - start_time) * 1000
             self.logger.log_api_request(
                 provider=self.name,
@@ -334,11 +199,7 @@ class BaseProvider(ABC):
                 error=error,
                 target_indicator=target_indicator
             )
-        
-        if error and last_exception:
-            raise last_exception
-        
-        return None
+            raise e
 
     def _is_stop_requested(self) -> bool:
         """
@@ -348,44 +209,6 @@ class BaseProvider(ABC):
             return True
         return False
 
-
-    def _wait_with_cancellation_check(self) -> bool:
-        """
-        Wait for rate limiting while aggressively checking for cancellation.
-        Returns False if cancelled during wait.
-        """
-        current_time = time.time()
-        time_since_last = current_time - self.rate_limiter.last_request_time
-
-        if time_since_last < self.rate_limiter.min_interval:
-            sleep_time = self.rate_limiter.min_interval - time_since_last
-            if not self._sleep_with_cancellation_check(sleep_time):
-                return False
-
-        self.rate_limiter.last_request_time = time.time()
-        return True
-
-    def _sleep_with_cancellation_check(self, sleep_time: float) -> bool:
-        """
-        Sleep for the specified time while aggressively checking for cancellation.
-        
-        Args:
-            sleep_time: Time to sleep in seconds
-            
-        Returns:
-            bool: True if sleep completed, False if cancelled
-        """
-        sleep_start = time.time()
-        check_interval = 0.05  # Check every 50ms for aggressive responsiveness
-        
-        while time.time() - sleep_start < sleep_time:
-            if self._is_stop_requested():
-                return False
-            remaining_time = sleep_time - (time.time() - sleep_start)
-            time.sleep(min(check_interval, remaining_time))
-        
-        return True
-
     def set_stop_event(self, stop_event: threading.Event) -> None:
         """
         Set the stop event for this provider to enable cancellation.
@@ -395,28 +218,6 @@ class BaseProvider(ABC):
         """
         self._stop_event = stop_event
 
-    def _should_retry(self, exception: requests.exceptions.RequestException) -> bool:
-        """
-        Determine if a request should be retried based on the exception.
-        
-        Args:
-            exception: The request exception that occurred
-            
-        Returns:
-            True if the request should be retried
-        """
-        # Retry on connection errors and timeouts
-        if isinstance(exception, (requests.exceptions.ConnectionError, 
-                                requests.exceptions.Timeout)):
-            return True
-        
-        if isinstance(exception, requests.exceptions.HTTPError):
-            if hasattr(exception, 'response') and exception.response:
-                # Retry on server errors (5xx) AND on rate-limiting errors (429)
-                return exception.response.status_code >= 500 or exception.response.status_code == 429
-        
-        return False
-
     def log_relationship_discovery(self, source_node: str, target_node: str,
                                  relationship_type: str,
                                  confidence_score: float,
@@ -459,5 +260,5 @@ class BaseProvider(ABC):
             'failed_requests': self.failed_requests,
             'success_rate': (self.successful_requests / self.total_requests * 100) if self.total_requests > 0 else 0,
             'relationships_found': self.total_relationships_found,
-            'rate_limit': self.rate_limiter.requests_per_minute
+            'rate_limit': self.config.get_rate_limit(self.name)
         }

providers/crtsh_provider.py

@@ -1,11 +1,9 @@
-"""
-Certificate Transparency provider using crt.sh.
-Discovers domain relationships through certificate SAN analysis with comprehensive certificate tracking.
-Stores certificates as metadata on domain nodes rather than creating certificate nodes.
-"""
+# dnsrecon/providers/crtsh_provider.py
 
 import json
 import re
+import os
+from pathlib import Path
 from typing import List, Dict, Any, Tuple, Set
 from urllib.parse import quote
 from datetime import datetime, timezone
@@ -18,10 +16,10 @@ from utils.helpers import _is_valid_domain
 class CrtShProvider(BaseProvider):
     """
     Provider for querying crt.sh certificate transparency database.
-    Now uses session-specific configuration and caching.
+    Now uses session-specific configuration and caching with accumulative behavior.
     """
     
-    def __init__(self, session_config=None):
+    def __init__(self, name=None, session_config=None):
         """Initialize CrtSh provider with session-specific configuration."""
         super().__init__(
             name="crtsh",
@@ -32,6 +30,10 @@ 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)
+    
     def get_name(self) -> str:
         """Return the provider name."""
         return "crtsh"
@@ -56,6 +58,158 @@ class CrtShProvider(BaseProvider):
         """
         return True
     
+    def _get_cache_file_path(self, domain: str) -> Path:
+        """Generate cache file path for a domain."""
+        # Sanitize domain for filename safety
+        safe_domain = domain.replace('.', '_').replace('/', '_').replace('\\', '_')
+        return self.cache_dir / f"{safe_domain}.json"
+    
+    def _get_cache_status(self, cache_file_path: Path) -> str:
+        """
+        Check cache status for a domain.
+        Returns: 'not_found', 'fresh', or 'stale'
+        """
+        if not cache_file_path.exists():
+            return "not_found"
+        
+        try:
+            with open(cache_file_path, 'r') as f:
+                cache_data = json.load(f)
+            
+            last_query_str = cache_data.get("last_upstream_query")
+            if not last_query_str:
+                return "stale"  # Invalid cache format
+            
+            last_query = datetime.fromisoformat(last_query_str.replace('Z', '+00:00'))
+            hours_since_query = (datetime.now(timezone.utc) - last_query).total_seconds() / 3600
+            
+            cache_timeout = self.config.cache_timeout_hours
+            if hours_since_query < cache_timeout:
+                return "fresh"
+            else:
+                return "stale"
+                
+        except (json.JSONDecodeError, ValueError, KeyError) as e:
+            self.logger.logger.warning(f"Invalid cache file format for {cache_file_path}: {e}")
+            return "stale"
+    
+    def _load_cached_certificates(self, cache_file_path: Path) -> List[Dict[str, Any]]:
+        """Load certificates from cache file."""
+        try:
+            with open(cache_file_path, 'r') as f:
+                cache_data = json.load(f)
+            return cache_data.get('certificates', [])
+        except (json.JSONDecodeError, FileNotFoundError, KeyError) as e:
+            self.logger.logger.error(f"Failed to load cached certificates from {cache_file_path}: {e}")
+            return []
+    
+    def _query_crtsh_api(self, domain: str) -> List[Dict[str, Any]]:
+        """
+        Query crt.sh API for raw certificate data.
+        Raises exceptions for network errors to allow core logic to retry.
+        """
+        url = f"{self.base_url}?q={quote(domain)}&output=json"
+        response = self.make_request(url, target_indicator=domain)
+        
+        if not response or response.status_code != 200:
+            # This could be a temporary error - raise exception so core can retry
+            raise requests.exceptions.RequestException(f"crt.sh API returned status {response.status_code if response else 'None'}")
+        
+        certificates = response.json()
+        if not certificates:
+            return []
+        
+        return certificates
+    
+    def _create_cache_file(self, cache_file_path: Path, domain: str, certificates: List[Dict[str, Any]]) -> None:
+        """Create new cache file with certificates."""
+        try:
+            cache_data = {
+                "domain": domain,
+                "first_cached": datetime.now(timezone.utc).isoformat(),
+                "last_upstream_query": datetime.now(timezone.utc).isoformat(),
+                "upstream_query_count": 1,
+                "certificates": certificates
+            }
+            
+            cache_file_path.parent.mkdir(parents=True, exist_ok=True)
+            with open(cache_file_path, 'w') as f:
+                json.dump(cache_data, f, separators=(',', ':'))
+                
+            self.logger.logger.info(f"Created cache file for {domain} with {len(certificates)} certificates")
+            
+        except Exception as e:
+            self.logger.logger.warning(f"Failed to create cache file for {domain}: {e}")
+    
+    def _append_to_cache(self, cache_file_path: Path, new_certificates: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
+        """Append new certificates to existing cache and return all certificates."""
+        try:
+            # Load existing cache
+            with open(cache_file_path, 'r') as f:
+                cache_data = json.load(f)
+            
+            # Track existing certificate IDs to avoid duplicates
+            existing_ids = {cert.get('id') for cert in cache_data.get('certificates', [])}
+            
+            # Add only new certificates
+            added_count = 0
+            for cert in new_certificates:
+                cert_id = cert.get('id')
+                if cert_id and cert_id not in existing_ids:
+                    cache_data['certificates'].append(cert)
+                    existing_ids.add(cert_id)
+                    added_count += 1
+            
+            # Update metadata
+            cache_data['last_upstream_query'] = datetime.now(timezone.utc).isoformat()
+            cache_data['upstream_query_count'] = cache_data.get('upstream_query_count', 0) + 1
+            
+            # Write updated cache
+            with open(cache_file_path, 'w') as f:
+                json.dump(cache_data, f, separators=(',', ':'))
+            
+            total_certs = len(cache_data['certificates'])
+            self.logger.logger.info(f"Appended {added_count} new certificates to cache. Total: {total_certs}")
+            
+            return cache_data['certificates']
+            
+        except Exception as e:
+            self.logger.logger.warning(f"Failed to append to cache: {e}")
+            return new_certificates  # Fallback to new certificates only
+    
+    def _parse_issuer_organization(self, issuer_dn: str) -> str:
+        """
+        Parse the issuer Distinguished Name to extract just the organization name.
+        
+        Args:
+            issuer_dn: Full issuer DN string (e.g., "C=US, O=Let's Encrypt, CN=R11")
+            
+        Returns:
+            Organization name (e.g., "Let's Encrypt") or original string if parsing fails
+        """
+        if not issuer_dn:
+            return issuer_dn
+        
+        try:
+            # Split by comma and look for O= component
+            components = [comp.strip() for comp in issuer_dn.split(',')]
+            
+            for component in components:
+                if component.startswith('O='):
+                    # Extract the value after O=
+                    org_name = component[2:].strip()
+                    # Remove quotes if present
+                    if org_name.startswith('"') and org_name.endswith('"'):
+                        org_name = org_name[1:-1]
+                    return org_name
+            
+            # If no O= component found, return the original string
+            return issuer_dn
+            
+        except Exception as e:
+            self.logger.logger.debug(f"Failed to parse issuer DN '{issuer_dn}': {e}")
+            return issuer_dn
+    
     def _parse_certificate_date(self, date_string: str) -> datetime:
         """
         Parse certificate date from crt.sh format.
@@ -133,10 +287,15 @@ class CrtShProvider(BaseProvider):
         Returns:
             Comprehensive certificate metadata dictionary
         """
+        # Parse the issuer name to get just the organization
+        raw_issuer_name = cert_data.get('issuer_name', '')
+        parsed_issuer_name = self._parse_issuer_organization(raw_issuer_name)
+        
         metadata = {
             'certificate_id': cert_data.get('id'),
             'serial_number': cert_data.get('serial_number'),
-            'issuer_name': cert_data.get('issuer_name'),
+            'issuer_name': parsed_issuer_name,  # Use parsed organization name
+            #'issuer_name_full': raw_issuer_name,  # deliberately left out, because its not useful in most cases
             'issuer_ca_id': cert_data.get('issuer_ca_id'),
             'common_name': cert_data.get('common_name'),
             'not_before': cert_data.get('not_before'),
@@ -167,7 +326,8 @@ class CrtShProvider(BaseProvider):
 
     def query_domain(self, domain: str) -> List[Tuple[str, str, str, float, Dict[str, Any]]]:
         """
-        Query crt.sh for certificates containing the domain.
+        Query crt.sh for certificates containing the domain with caching support.
+        Properly raises exceptions for network errors to allow core logic retries.
         """
         if not _is_valid_domain(domain):
             return []
@@ -177,29 +337,77 @@ class CrtShProvider(BaseProvider):
             print(f"CrtSh query cancelled before start for domain: {domain}")
             return []
         
-        relationships = []
+        # === CACHING LOGIC ===
+        cache_file = self._get_cache_file_path(domain)
+        cache_status = self._get_cache_status(cache_file)
+        
+        certificates = []
         
         try:
-            # Query crt.sh for certificates
-            url = f"{self.base_url}?q={quote(domain)}&output=json"
-            response = self.make_request(url, target_indicator=domain, max_retries=3)
+            if cache_status == "fresh":
+                # Use cached data
+                certificates = self._load_cached_certificates(cache_file)
+                self.logger.logger.info(f"Using cached data for {domain} ({len(certificates)} certificates)")
                 
-            if not response or response.status_code != 200:
-                return []
+            elif cache_status == "not_found":
+                # Fresh query, create new cache
+                certificates = self._query_crtsh_api(domain)
+                if certificates:  # Only cache if we got results
+                    self._create_cache_file(cache_file, domain, certificates)
+                    self.logger.logger.info(f"Cached fresh data for {domain} ({len(certificates)} certificates)")
+                else:
+                    self.logger.logger.info(f"No certificates found for {domain}, not caching")
                     
-            # Check for cancellation after request
+            elif cache_status == "stale":
+                # Append query, update existing cache
+                try:
+                    new_certificates = self._query_crtsh_api(domain)
+                    if new_certificates:
+                        certificates = self._append_to_cache(cache_file, new_certificates)
+                        self.logger.logger.info(f"Refreshed and appended cache for {domain}")
+                    else:
+                        # Use existing cache if API returns no results
+                        certificates = self._load_cached_certificates(cache_file)
+                        self.logger.logger.info(f"API returned no new results, using existing cache for {domain}")
+                except requests.exceptions.RequestException:
+                    # If API call fails for stale cache, use cached data and re-raise for retry logic
+                    certificates = self._load_cached_certificates(cache_file)
+                    if certificates:
+                        self.logger.logger.warning(f"API call failed for {domain}, using stale cache data ({len(certificates)} certificates)")
+                        # Don't re-raise here, just use cached data
+                    else:
+                        # No cached data and API failed - re-raise for retry
+                        raise
+            
+        except requests.exceptions.RequestException as e:
+            # Network/API errors should be re-raised so core logic can retry
+            self.logger.logger.error(f"API query failed for {domain}: {e}")
+            raise e
+        except json.JSONDecodeError as e:
+            # JSON parsing errors should also be raised for retry
+            self.logger.logger.error(f"Failed to parse JSON response from crt.sh for {domain}: {e}")
+            raise e
+        
+        # Check for cancellation after cache operations
         if self._stop_event and self._stop_event.is_set():
-                print(f"CrtSh query cancelled after request for domain: {domain}")
+            print(f"CrtSh query cancelled after cache operations for domain: {domain}")
             return []
         
-            certificates = response.json()
-            
         if not certificates:
             return []
         
+        return self._process_certificates_to_relationships(domain, certificates)
+    
+    def _process_certificates_to_relationships(self, domain: str, certificates: List[Dict[str, Any]]) -> List[Tuple[str, str, str, float, Dict[str, Any]]]:
+        """
+        Process certificates to relationships using existing logic.
+        This method contains the original processing logic from query_domain.
+        """
+        relationships = []
+        
         # Check for cancellation before processing
         if self._stop_event and self._stop_event.is_set():
-                print(f"CrtSh query cancelled before processing for domain: {domain}")
+            print(f"CrtSh processing cancelled before processing for domain: {domain}")
             return []
 
         # Aggregate certificate data by domain
@@ -208,7 +416,7 @@ class CrtShProvider(BaseProvider):
         
         # Process certificates with cancellation checking
         for i, cert_data in enumerate(certificates):
-                # Check for cancellation every 5 certificates instead of 10 for faster response
+            # Check for cancellation every 5 certificates for faster response
             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}")
                 break
@@ -217,17 +425,11 @@ class CrtShProvider(BaseProvider):
             cert_domains = self._extract_domains_from_certificate(cert_data)
             
             # Add all domains from this certificate to our tracking
+            all_discovered_domains.update(cert_domains)
             for cert_domain in cert_domains:
-                    # Additional stop check during domain processing
-                    if i % 20 == 0 and self._stop_event and self._stop_event.is_set():
-                        print(f"CrtSh domain processing cancelled for domain: {domain}")
-                        break
-                        
                 if not _is_valid_domain(cert_domain):
                     continue
                 
-                    all_discovered_domains.add(cert_domain)
-                    
                 # Initialize domain certificate list if needed
                 if cert_domain not in domain_certificates:
                     domain_certificates[cert_domain] = []
@@ -296,12 +498,6 @@ class CrtShProvider(BaseProvider):
                 discovery_method="certificate_transparency_analysis"
             )
 
-        except json.JSONDecodeError as e:
-            self.logger.logger.error(f"Failed to parse JSON response from crt.sh: {e}")
-        except requests.exceptions.RequestException as e:
-            self.logger.logger.error(f"HTTP request to crt.sh failed: {e}")
-
-        
         return relationships
 
     def _find_shared_certificates(self, certs1: List[Dict[str, Any]], certs2: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
@@ -318,11 +514,19 @@ class CrtShProvider(BaseProvider):
         shared = []
         
         # Create a set of certificate IDs from the first list for quick lookup
-        cert1_ids = {cert.get('certificate_id') for cert in certs1 if cert.get('certificate_id')}
+        # <<< FIX: Added robust type checking to handle potentially malformed API data
+        cert1_ids = set()
+        for cert in certs1:
+            cert_id = cert.get('certificate_id')
+            # Ensure the ID is not None and is a hashable type before adding to the set
+            if cert_id and isinstance(cert_id, (int, str, float, bool, tuple)):
+                cert1_ids.add(cert_id)
         
         # Find certificates in the second list that match
         for cert in certs2:
-            if cert.get('certificate_id') in cert1_ids:
+            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
@@ -345,14 +549,15 @@ class CrtShProvider(BaseProvider):
                 'expires_soon_count': 0,
                 'unique_issuers': [],
                 'latest_certificate': None,
-                'has_valid_cert': False
+                'has_valid_cert': False,
+                'certificate_details': []  # Always include empty list
             }
         
         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'))
         
-        # Get unique issuers
+        # Get unique issuers (using parsed organization names)
         unique_issuers = list(set(cert.get('issuer_name') for cert in certificates if cert.get('issuer_name')))
         
         # Find the most recent certificate
@@ -369,6 +574,13 @@ class CrtShProvider(BaseProvider):
             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,
@@ -377,9 +589,35 @@ class CrtShProvider(BaseProvider):
             'unique_issuers': unique_issuers,
             'latest_certificate': latest_cert,
             'has_valid_cert': valid_count > 0,
-            'certificate_details': certificates  # Full details for forensic analysis
+            'certificate_details': sorted_certificates  # Include full certificate details
         }
 
+    def _get_certificate_sort_date(self, cert: Dict[str, Any]) -> datetime:
+        """
+        Get a sortable date from certificate data for chronological ordering.
+        
+        Args:
+            cert: Certificate metadata dictionary
+            
+        Returns:
+            Datetime object for sorting (falls back to epoch if parsing fails)
+        """
+        try:
+            # Try not_before first (issue date)
+            if cert.get('not_before'):
+                return self._parse_certificate_date(cert['not_before'])
+            
+            # Fall back to entry_timestamp if available
+            if cert.get('entry_timestamp'):
+                return self._parse_certificate_date(cert['entry_timestamp'])
+                
+            # Last resort - return a very old date for certificates without dates
+            return datetime(1970, 1, 1, tzinfo=timezone.utc)
+            
+        except Exception:
+            # If all parsing fails, return epoch
+            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:

providers/dns_provider.py

@@ -1,7 +1,6 @@
 # dnsrecon/providers/dns_provider.py
 
-import dns.resolver
-import dns.reversename
+from dns import resolver, reversename
 from typing import List, Dict, Any, Tuple
 from .base_provider import BaseProvider
 from utils.helpers import _is_valid_ip, _is_valid_domain
@@ -13,7 +12,7 @@ class DNSProvider(BaseProvider):
     Now uses session-specific configuration.
     """
 
-    def __init__(self, session_config=None):
+    def __init__(self, name=None, session_config=None):
         """Initialize DNS provider with session-specific configuration."""
         super().__init__(
             name="dns",
@@ -23,7 +22,7 @@ class DNSProvider(BaseProvider):
         )
 
         # Configure DNS resolver
-        self.resolver = dns.resolver.Resolver()
+        self.resolver = resolver.Resolver()
         self.resolver.timeout = 5
         self.resolver.lifetime = 10
         #self.resolver.nameservers = ['127.0.0.1']
@@ -51,12 +50,7 @@ class DNSProvider(BaseProvider):
     def query_domain(self, domain: str) -> List[Tuple[str, str, str, float, Dict[str, Any]]]:
         """
         Query DNS records for the domain to discover relationships.
-
-        Args:
-            domain: Domain to investigate
-
-        Returns:
-            List of relationships discovered from DNS analysis
+        ...
         """
         if not _is_valid_domain(domain):
             return []
@@ -65,7 +59,15 @@ class DNSProvider(BaseProvider):
 
         # Query all record types
         for record_type in ['A', 'AAAA', 'CNAME', 'MX', 'NS', 'SOA', 'TXT', 'SRV', 'CAA']:
+            try:
                 relationships.extend(self._query_record(domain, record_type))
+            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}")
+            except Exception as e:
+                self.failed_requests += 1
+                self.logger.logger.debug(f"{record_type} record query failed for {domain}: {e}")
+                # Optionally, you might want to re-raise other, more serious exceptions.
 
         return relationships
 
@@ -87,7 +89,7 @@ class DNSProvider(BaseProvider):
         try:
             # Perform reverse DNS lookup
             self.total_requests += 1
-            reverse_name = dns.reversename.from_address(ip)
+            reverse_name = reversename.from_address(ip)
             response = self.resolver.resolve(reverse_name, 'PTR')
             self.successful_requests += 1
 
@@ -119,9 +121,14 @@ class DNSProvider(BaseProvider):
                         discovery_method="reverse_dns_lookup"
                     )
 
+        except resolver.NXDOMAIN:
+            self.failed_requests += 1
+            self.logger.logger.debug(f"Reverse DNS lookup failed for {ip}: NXDOMAIN")
         except Exception as e:
             self.failed_requests += 1
             self.logger.logger.debug(f"Reverse DNS lookup failed for {ip}: {e}")
+            # Re-raise the exception so the scanner can handle the failure
+            raise e
 
         return relationships
 
@@ -185,5 +192,7 @@ class DNSProvider(BaseProvider):
         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
 
         return relationships

providers/shodan_provider.py

@@ -1,21 +1,23 @@
-"""
-Shodan provider for DNSRecon.
-Discovers IP relationships and infrastructure context through Shodan API.
-"""
+# dnsrecon/providers/shodan_provider.py
 
 import json
+import os
+from pathlib import Path
 from typing import List, Dict, Any, Tuple
+from datetime import datetime, timezone
+import requests
+
 from .base_provider import BaseProvider
 from utils.helpers import _is_valid_ip, _is_valid_domain
 
 
 class ShodanProvider(BaseProvider):
     """
-    Provider for querying Shodan API for IP address and hostname information.
-    Now uses session-specific API keys.
+    Provider for querying Shodan API for IP address information.
+    Now uses session-specific API keys, is limited to IP-only queries, and includes caching.
     """
 
-    def __init__(self, session_config=None):
+    def __init__(self, name=None, session_config=None):
         """Initialize Shodan provider with session-specific configuration."""
         super().__init__(
             name="shodan",
@@ -26,6 +28,10 @@ class ShodanProvider(BaseProvider):
         self.base_url = "https://api.shodan.io"
         self.api_key = self.config.get_api_key('shodan')
         
+        # Initialize cache directory
+        self.cache_dir = Path('cache') / 'shodan'
+        self.cache_dir.mkdir(parents=True, exist_ok=True)
+
     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
@@ -36,7 +42,7 @@ class ShodanProvider(BaseProvider):
 
     def get_display_name(self) -> str:
         """Return the provider display name for the UI."""
-        return "shodan"
+        return "Shodan"
 
     def requires_api_key(self) -> bool:
         """Return True if the provider requires an API key."""
@@ -44,267 +50,146 @@ class ShodanProvider(BaseProvider):
 
     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}
+        return {'domains': False, 'ips': True}
+
+    def _get_cache_file_path(self, ip: str) -> Path:
+        """Generate cache file path for an IP address."""
+        safe_ip = ip.replace('.', '_').replace(':', '_')
+        return self.cache_dir / f"{safe_ip}.json"
+
+    def _get_cache_status(self, cache_file_path: Path) -> str:
+        """
+        Check cache status for an IP.
+        Returns: 'not_found', 'fresh', or 'stale'
+        """
+        if not cache_file_path.exists():
+            return "not_found"
+        
+        try:
+            with open(cache_file_path, 'r') as f:
+                cache_data = json.load(f)
+            
+            last_query_str = cache_data.get("last_upstream_query")
+            if not last_query_str:
+                return "stale"
+            
+            last_query = datetime.fromisoformat(last_query_str.replace('Z', '+00:00'))
+            hours_since_query = (datetime.now(timezone.utc) - last_query).total_seconds() / 3600
+            
+            cache_timeout = self.config.cache_timeout_hours
+            if hours_since_query < cache_timeout:
+                return "fresh"
+            else:
+                return "stale"
+                
+        except (json.JSONDecodeError, ValueError, KeyError):
+            return "stale"
+
+    def _load_from_cache(self, cache_file_path: Path) -> Dict[str, Any]:
+        """Load Shodan data from a cache file."""
+        try:
+            with open(cache_file_path, 'r') as f:
+                return json.load(f)
+        except (json.JSONDecodeError, FileNotFoundError):
+            return {}
+
+    def _save_to_cache(self, cache_file_path: Path, data: Dict[str, Any]) -> None:
+        """Save Shodan data to a cache file."""
+        try:
+            data['last_upstream_query'] = datetime.now(timezone.utc).isoformat()
+            with open(cache_file_path, 'w') as f:
+                json.dump(data, f, separators=(',', ':'))
+        except Exception as e:
+            self.logger.logger.warning(f"Failed to save Shodan cache for {cache_file_path.name}: {e}")
 
     def query_domain(self, domain: str) -> List[Tuple[str, str, str, float, Dict[str, Any]]]:
         """
-        Query Shodan for information about a domain.
-        Uses Shodan's hostname search to find associated IPs.
-
-        Args:
-            domain: Domain to investigate
-
-        Returns:
-            List of relationships discovered from Shodan data
+        Domain queries are no longer supported for the Shodan provider.
         """
-        if not _is_valid_domain(domain) or not self.is_available():
         return []
 
-        relationships = []
-
-        try:
-            # Search for hostname in Shodan
-            search_query = f"hostname:{domain}"
-            url = f"{self.base_url}/shodan/host/search"
-            params = {
-                'key': self.api_key,
-                'query': search_query,
-                'minify': True  # Get minimal data to reduce bandwidth
-            }
-
-            response = self.make_request(url, method="GET", params=params, target_indicator=domain)
-
-            if not response or response.status_code != 200:
-                return []
-
-            data = response.json()
-
-            if 'matches' not in data:
-                return []
-
-            # Process search results
-            for match in data['matches']:
-                ip_address = match.get('ip_str')
-                hostnames = match.get('hostnames', [])
-
-                if ip_address and domain in hostnames:
-                    raw_data = {
-                        'ip_address': ip_address,
-                        'hostnames': hostnames,
-                        'country': match.get('location', {}).get('country_name', ''),
-                        'city': match.get('location', {}).get('city', ''),
-                        'isp': match.get('isp', ''),
-                        'org': match.get('org', ''),
-                        'ports': match.get('ports', []),
-                        'last_update': match.get('last_update', '')
-                    }
-
-                    relationships.append((
-                        domain,
-                        ip_address,
-                        'a_record',  # Domain resolves to IP
-                        0.8,
-                        raw_data
-                    ))
-
-                    self.log_relationship_discovery(
-                        source_node=domain,
-                        target_node=ip_address,
-                        relationship_type='a_record',
-                        confidence_score=0.8,
-                        raw_data=raw_data,
-                        discovery_method="shodan_hostname_search"
-                    )
-
-                    # Also create relationships to other hostnames on the same IP
-                    for hostname in hostnames:
-                        if hostname != domain and _is_valid_domain(hostname):
-                            hostname_raw_data = {
-                                'shared_ip': ip_address,
-                                'all_hostnames': hostnames,
-                                'discovery_context': 'shared_hosting'
-                            }
-
-                            relationships.append((
-                                domain,
-                                hostname,
-                                'passive_dns',  # Shared hosting relationship
-                                0.6,  # Lower confidence for shared hosting
-                                hostname_raw_data
-                            ))
-
-                            self.log_relationship_discovery(
-                                source_node=domain,
-                                target_node=hostname,
-                                relationship_type='passive_dns',
-                                confidence_score=0.6,
-                                raw_data=hostname_raw_data,
-                                discovery_method="shodan_shared_hosting"
-                            )
-
-        except json.JSONDecodeError as e:
-            self.logger.logger.error(f"Failed to parse JSON response from Shodan: {e}")
-
-        return relationships
-
     def query_ip(self, ip: str) -> List[Tuple[str, str, str, float, Dict[str, Any]]]:
         """
-        Query Shodan for information about an IP address.
-
-        Args:
-            ip: IP address to investigate
-
-        Returns:
-            List of relationships discovered from Shodan IP data
+        Query Shodan for information about an IP address, with caching.
         """
         if not _is_valid_ip(ip) or not self.is_available():
             return []
         
-        relationships = []
+        cache_file = self._get_cache_file_path(ip)
+        cache_status = self._get_cache_status(cache_file)
+        
+        data = {}
         
         try:
-            # Query Shodan host information
+            if cache_status == "fresh":
+                data = 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)
                 
-            if not response or response.status_code != 200:
+                if response and response.status_code == 200:
+                    data = response.json()
+                    self._save_to_cache(cache_file, data)
+                elif cache_status == "stale":
+                    # If API fails on a stale cache, use the old data
+                    data = 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 cache_status == "stale":
+                data = self._load_from_cache(cache_file)
+        
+        if not data:
             return []
 
-            data = response.json()
+        return self._process_shodan_data(ip, data)
+
+    def _process_shodan_data(self, ip: str, data: Dict[str, Any]) -> List[Tuple[str, str, str, float, Dict[str, Any]]]:
+        """
+        Process Shodan data to extract relationships.
+        """
+        relationships = []
 
         # Extract hostname relationships
         hostnames = data.get('hostnames', [])
         for hostname in hostnames:
             if _is_valid_domain(hostname):
-                    raw_data = {
-                        'ip_address': ip,
-                        'hostname': hostname,
-                        'country': data.get('country_name', ''),
-                        'city': data.get('city', ''),
-                        'isp': data.get('isp', ''),
-                        'org': data.get('org', ''),
-                        'asn': data.get('asn', ''),
-                        'ports': data.get('ports', []),
-                        'last_update': data.get('last_update', ''),
-                        'os': data.get('os', '')
-                    }
-
                 relationships.append((
                     ip,
                     hostname,
-                        'a_record',  # IP resolves to hostname
+                    'a_record',
                     0.8,
-                        raw_data
+                    data
                 ))
-
                 self.log_relationship_discovery(
                     source_node=ip,
                     target_node=hostname,
                     relationship_type='a_record',
                     confidence_score=0.8,
-                        raw_data=raw_data,
+                    raw_data=data,
                     discovery_method="shodan_host_lookup"
                 )
 
-            # Extract ASN relationship if available
+        # Extract ASN relationship
         asn = data.get('asn')
         if asn:
-                # Ensure the ASN starts with "AS"
-                if isinstance(asn, str) and asn.startswith('AS'):
-                    asn_name = asn
-                    asn_number = asn[2:]
-                else:
-                    asn_name = f"AS{asn}"
-                    asn_number = str(asn)
-
-                asn_raw_data = {
-                    'ip_address': ip,
-                    'asn': asn_number,
-                    'isp': data.get('isp', ''),
-                    'org': data.get('org', '')
-                }
-
+            asn_name = f"AS{asn[2:]}" if isinstance(asn, str) and asn.startswith('AS') else f"AS{asn}"
             relationships.append((
                 ip,
                 asn_name,
                 'asn_membership',
                 0.7,
-                    asn_raw_data
+                data
             ))
-
             self.log_relationship_discovery(
                 source_node=ip,
                 target_node=asn_name,
                 relationship_type='asn_membership',
                 confidence_score=0.7,
-                    raw_data=asn_raw_data,
+                raw_data=data,
                 discovery_method="shodan_asn_lookup"
             )
             
-        except json.JSONDecodeError as e:
-            self.logger.logger.error(f"Failed to parse JSON response from Shodan: {e}")
-
         return relationships
-
-    def search_by_organization(self, org_name: str) -> List[Dict[str, Any]]:
-        """
-        Search Shodan for hosts belonging to a specific organization.
-
-        Args:
-            org_name: Organization name to search for
-
-        Returns:
-            List of host information dictionaries
-        """
-        if not self.is_available():
-            return []
-
-        try:
-            search_query = f"org:\"{org_name}\""
-            url = f"{self.base_url}/shodan/host/search"
-            params = {
-                'key': self.api_key,
-                'query': search_query,
-                'minify': True
-            }
-
-            response = self.make_request(url, method="GET", params=params, target_indicator=org_name)
-
-            if response and response.status_code == 200:
-                data = response.json()
-                return data.get('matches', [])
-
-        except Exception as e:
-            self.logger.logger.error(f"Error searching Shodan by organization {org_name}: {e}")
-
-        return []
-
-    def get_host_services(self, ip: str) -> List[Dict[str, Any]]:
-        """
-        Get service information for a specific IP address.
-
-        Args:
-            ip: IP address to query
-
-        Returns:
-            List of service information dictionaries
-        """
-        if not _is_valid_ip(ip) or not self.is_available():
-            return []
-
-        try:
-            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)
-
-            if response and response.status_code == 200:
-                data = response.json()
-                return data.get('data', [])  # Service banners
-
-        except Exception as e:
-            self.logger.logger.error(f"Error getting Shodan services for IP {ip}: {e}")
-
-        return []

requirements.txt

@@ -7,3 +7,4 @@ urllib3>=2.0.0
 dnspython>=2.4.2
 gunicorn
 redis
+python-dotenv

static/js/graph.js

@@ -1,7 +1,57 @@
 /**
  * Graph visualization module for DNSRecon
- * Handles network graph rendering using vis.js
+ * Handles network graph rendering using vis.js with proper large entity node hiding
  */
+const contextMenuCSS = `
+.graph-context-menu {
+    position: fixed;
+    z-index: 1000;
+    background: linear-gradient(135deg, #2a2a2a 0%, #1e1e1e 100%);
+    border: 1px solid #444;
+    border-radius: 6px;
+    box-shadow: 0 8px 25px rgba(0,0,0,0.6);
+    display: none;
+    font-family: 'Roboto Mono', monospace;
+    font-size: 0.9rem;
+    color: #c7c7c7;
+    min-width: 180px;
+    overflow: hidden;
+}
+
+.graph-context-menu ul {
+    list-style: none;
+    padding: 0.5rem 0;
+    margin: 0;
+}
+
+.graph-context-menu ul li {
+    padding: 0.75rem 1rem;
+    cursor: pointer;
+    transition: all 0.2s ease;
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+}
+
+.graph-context-menu ul li:hover {
+    background: linear-gradient(135deg, #3a3a3a 0%, #2e2e2e 100%);
+    color: #00ff41;
+}
+
+.graph-context-menu .menu-icon {
+    font-size: 0.9rem;
+    width: 1.2rem;
+    text-align: center;
+}
+
+.graph-context-menu ul li:first-child {
+    border-top: none;
+}
+
+.graph-context-menu ul li:last-child {
+    border-bottom: none;
+}
+`;
 
 class GraphManager {
     constructor(containerId) {
@@ -12,6 +62,13 @@ class GraphManager {
         this.isInitialized = false;
         this.currentLayout = 'physics';
         this.nodeInfoPopup = null;
+        this.contextMenu = null;
+        this.history = [];
+        this.filterPanel = null;
+        this.trueRootIds = new Set();
+        // Track large entity members for proper hiding
+        this.largeEntityMembers = new Set();
+        this.isScanning = false;
 
         this.options = {
             nodes: {
@@ -115,8 +172,14 @@ class GraphManager {
                 randomSeed: 2
             }
         };
-
+    if (typeof document !== 'undefined') {
+        const style = document.createElement('style');
+        style.textContent = contextMenuCSS;
+        document.head.appendChild(style);
+    }
         this.createNodeInfoPopup();
+        this.createContextMenu();
+        document.body.addEventListener('click', () => this.hideContextMenu());
     }
 
     /**
@@ -129,6 +192,30 @@ class GraphManager {
         document.body.appendChild(this.nodeInfoPopup);
     }
     
+    /**
+     * Create context menu
+     */
+    createContextMenu() {
+        // Remove existing context menu if it exists
+        const existing = document.getElementById('graph-context-menu');
+        if (existing) {
+            existing.remove();
+        }
+        
+        this.contextMenu = document.createElement('div');
+        this.contextMenu.id = 'graph-context-menu';
+        this.contextMenu.className = 'graph-context-menu';
+        this.contextMenu.style.display = 'none';
+        
+        // Prevent body click listener from firing when clicking the menu itself
+        this.contextMenu.addEventListener('click', (event) => {
+            event.stopPropagation();
+        });
+
+        document.body.appendChild(this.contextMenu);
+        console.log('Context menu created and added to body');
+    }
+
     /**
      * Initialize the network graph
      */
@@ -155,6 +242,7 @@ class GraphManager {
 
             // Add graph controls
             this.addGraphControls();
+            this.addFilterPanel();
 
             console.log('Graph initialized successfully');
         } catch (error) {
@@ -173,6 +261,8 @@ class GraphManager {
             <button class="graph-control-btn" id="graph-fit" title="Fit to Screen">[FIT]</button>
             <button class="graph-control-btn" id="graph-physics" title="Toggle Physics">[PHYSICS]</button>
             <button class="graph-control-btn" id="graph-cluster" title="Cluster Nodes">[CLUSTER]</button>
+            <button class="graph-control-btn" id="graph-unhide" title="Unhide All">[UNHIDE]</button>
+            <button class="graph-control-btn" id="graph-revert" title="Revert Last Action">[REVERT]</button>
         `;
 
         this.container.appendChild(controlsContainer);
@@ -181,6 +271,14 @@ class GraphManager {
         document.getElementById('graph-fit').addEventListener('click', () => this.fitView());
         document.getElementById('graph-physics').addEventListener('click', () => this.togglePhysics());
         document.getElementById('graph-cluster').addEventListener('click', () => this.toggleClustering());
+        document.getElementById('graph-unhide').addEventListener('click', () => this.unhideAll());
+        document.getElementById('graph-revert').addEventListener('click', () => this.revertLastAction());
+    }
+    
+    addFilterPanel() {
+        this.filterPanel = document.createElement('div');
+        this.filterPanel.className = 'graph-filter-panel';
+        this.container.appendChild(this.filterPanel);
     }
 
     /**
@@ -189,8 +287,31 @@ class GraphManager {
     setupNetworkEvents() {
         if (!this.network) return;
 
+        // 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 = {
+                x: event.offsetX,
+                y: event.offsetY
+            };
+            
+            const nodeId = this.network.getNodeAt(pointer);
+            console.log('Node at pointer:', nodeId);
+            
+            if (nodeId) {
+                // Pass the original client event for positioning
+                this.showContextMenu(nodeId, event);
+            } else {
+                this.hideContextMenu();
+            }
+        });
+
         // Node click event with details
         this.network.on('click', (params) => {
+            this.hideContextMenu();
             if (params.nodes.length > 0) {
                 const nodeId = params.nodes[0];
                 if (this.network.isCluster(nodeId)) {
@@ -216,14 +337,6 @@ class GraphManager {
             }
         });
 
-        // FIX: Comment out the problematic context menu handler
-        this.network.on('oncontext', (params) => {
-            params.event.preventDefault();
-            // if (params.nodes.length > 0) {
-            //     this.showNodeContextMenu(params.pointer.DOM, params.nodes[0]);
-            // }
-        });
-
         // Stabilization events with progress
         this.network.on('stabilizationProgress', (params) => {
             const progress = params.iterations / params.total;
@@ -239,6 +352,13 @@ class GraphManager {
             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)) {
+                this.hideContextMenu();
+            }
+        });
     }
 
     /**
@@ -256,21 +376,28 @@ class GraphManager {
                 this.initialize();
             }
 
+            this.largeEntityMembers.clear();
             const largeEntityMap = new Map();
+            
             graphData.nodes.forEach(node => {
                 if (node.type === 'large_entity' && node.attributes && Array.isArray(node.attributes.nodes)) {
                     node.attributes.nodes.forEach(nodeId => {
                         largeEntityMap.set(nodeId, node.id);
+                        this.largeEntityMembers.add(nodeId);
                     });
                 }
             });
 
-            const processedNodes = graphData.nodes.map(node => {
-                const processed = this.processNode(node);
-                if (largeEntityMap.has(node.id)) {
-                    processed.hidden = true;
-                }
-                return processed;
+            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 = {};
@@ -315,6 +442,11 @@ class GraphManager {
             this.nodes.update(processedNodes);
             this.edges.update(processedEdges);
             
+            // After data is loaded, compute roots and apply filters
+            this.computeTrueRoots();
+            this.updateFilterControls();
+            this.applyAllFilters();
+
             // Highlight new additions briefly
             if (newNodes.length > 0 || newEdges.length > 0) {
                 setTimeout(() => this.highlightNewElements(newNodes, newEdges), 100);
@@ -326,6 +458,8 @@ class GraphManager {
             }
 
             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');
@@ -380,7 +514,7 @@ class GraphManager {
                 // Single correlation value
                 const value = Array.isArray(values) && values.length > 0 ? values[0] : (metadata.value || 'Unknown');
                 const displayValue = typeof value === 'string' && value.length > 20 ? value.substring(0, 17) + '...' : value;
-                processedNode.label = `Corr: ${displayValue}`;
+                processedNode.label = `${displayValue}`;
                 processedNode.title = `Correlation: ${value}`;
             }
         }
@@ -412,8 +546,6 @@ class GraphManager {
             }
         };
 
-
-
         return processedEdge;
     }
 
@@ -460,7 +592,6 @@ class GraphManager {
         return colors[nodeType] || '#ffffff';
     }
 
-
     /**
      * Get node border color based on type
      * @param {string} nodeType - Node type
@@ -850,6 +981,8 @@ class GraphManager {
     clear() {
         this.nodes.clear();
         this.edges.clear();
+        this.history = [];
+        this.largeEntityMembers.clear(); // Clear large entity tracking
 
         // Show placeholder
         const placeholder = this.container.querySelector('.graph-placeholder');
@@ -870,60 +1003,591 @@ class GraphManager {
         }
     }
 
+     /* * @param {Set} excludedNodeIds - Node IDs to exclude from analysis (for simulation)
+     * @param {Set} excludedEdgeTypes - Edge types to exclude from traversal
+     * @param {Set} excludedNodeTypes - Node types to exclude from traversal
+     * @returns {Object} Analysis results with reachable/unreachable nodes
+     */
+    analyzeGraphReachability(excludedNodeIds = new Set(), excludedEdgeTypes = new Set(), excludedNodeTypes = new Set()) {
+        console.log("Performing comprehensive reachability analysis...");
+        
+        const analysis = {
+            reachableNodes: new Set(),
+            unreachableNodes: new Set(),
+            isolatedClusters: [],
+            affectedNodes: new Set()
+        };
+
+        if (this.nodes.length === 0) return analysis;
+
+        // Build adjacency list excluding specified elements
+        const adjacencyList = {};
+        this.nodes.getIds().forEach(id => {
+            if (!excludedNodeIds.has(id)) {
+                adjacencyList[id] = [];
+            }
+        });
+
+        this.edges.forEach(edge => {
+            const edgeType = edge.metadata?.relationship_type || '';
+            if (!excludedEdgeTypes.has(edgeType) && 
+                !excludedNodeIds.has(edge.from) && 
+                !excludedNodeIds.has(edge.to)) {
+                
+                if (adjacencyList[edge.from]) {
+                    adjacencyList[edge.from].push(edge.to);
+                }
+            }
+        });
+
+        // BFS traversal from true roots
+        const traversalQueue = [];
+        
+        // Start from true roots that aren't excluded
+        this.trueRootIds.forEach(rootId => {
+            if (!excludedNodeIds.has(rootId)) {
+                const node = this.nodes.get(rootId);
+                if (node && !excludedNodeTypes.has(node.type)) {
+                    if (!analysis.reachableNodes.has(rootId)) {
+                        traversalQueue.push(rootId);
+                        analysis.reachableNodes.add(rootId);
+                    }
+                }
+            }
+        });
+
+        // BFS to find all reachable nodes
+        let queueIndex = 0;
+        while (queueIndex < traversalQueue.length) {
+            const currentNode = traversalQueue[queueIndex++];
+            
+            for (const neighbor of (adjacencyList[currentNode] || [])) {
+                if (!analysis.reachableNodes.has(neighbor)) {
+                    const node = this.nodes.get(neighbor);
+                    if (node && !excludedNodeTypes.has(node.type)) {
+                        analysis.reachableNodes.add(neighbor);
+                        traversalQueue.push(neighbor);
+                    }
+                }
+            }
+        }
+
+        // Identify unreachable nodes (maintaining forensic integrity)
+        Object.keys(adjacencyList).forEach(nodeId => {
+            if (!analysis.reachableNodes.has(nodeId)) {
+                analysis.unreachableNodes.add(nodeId);
+            }
+        });
+
+        // Find isolated clusters among unreachable nodes
+        analysis.isolatedClusters = this.findIsolatedClusters(
+            Array.from(analysis.unreachableNodes), 
+            adjacencyList
+        );
+
+        console.log(`Reachability analysis complete:`, {
+            reachable: analysis.reachableNodes.size,
+            unreachable: analysis.unreachableNodes.size,
+            clusters: analysis.isolatedClusters.length
+        });
+
+        return analysis;
+    }
+
     /**
-     * Get network statistics
-     * @returns {Object} Statistics object
+     * Find isolated clusters within a set of nodes
+     * Used for forensic analysis to identify disconnected subgraphs
+     */
+    findIsolatedClusters(nodeIds, adjacencyList) {
+        const visited = new Set();
+        const clusters = [];
+
+        for (const nodeId of nodeIds) {
+            if (!visited.has(nodeId)) {
+                const cluster = [];
+                const stack = [nodeId];
+                
+                while (stack.length > 0) {
+                    const current = stack.pop();
+                    if (!visited.has(current)) {
+                        visited.add(current);
+                        cluster.push(current);
+                        
+                        // Add unvisited neighbors within the unreachable set
+                        for (const neighbor of (adjacencyList[current] || [])) {
+                            if (nodeIds.includes(neighbor) && !visited.has(neighbor)) {
+                                stack.push(neighbor);
+                            }
+                        }
+                    }
+                }
+                
+                if (cluster.length > 0) {
+                    clusters.push(cluster);
+                }
+            }
+        }
+
+        return clusters;
+    }
+
+    /**
+     * ENHANCED: Get comprehensive graph statistics with forensic information
+     * Updates the existing getStatistics() method
      */
     getStatistics() {
-        return {
+        const basicStats = {
             nodeCount: this.nodes.length,
             edgeCount: this.edges.length,
-            //isStabilized: this.network ? this.network.isStabilized() : false
+            largeEntityMembersHidden: this.largeEntityMembers.size
+        };
+
+        // Add forensic statistics
+        const visibleNodes = this.nodes.get({ filter: node => !node.hidden });
+        const hiddenNodes = this.nodes.get({ filter: node => node.hidden });
+        
+        return {
+            ...basicStats,
+            forensicStatistics: {
+                visibleNodes: visibleNodes.length,
+                hiddenNodes: hiddenNodes.length,
+                trueRoots: this.trueRootIds.size,
+                integrityStatus: visibleNodes.length > 0 && this.trueRootIds.size > 0 ? 'INTACT' : 'COMPROMISED'
+            }
+        };
+    }
+    
+    computeTrueRoots() {
+        this.trueRootIds.clear();
+        const allNodes = this.nodes.get({ returnType: 'Object' });
+        const allEdges = this.edges.get();
+        const inDegrees = {};
+    
+        for (const nodeId in allNodes) {
+            inDegrees[nodeId] = 0;
+        }
+        allEdges.forEach(edge => {
+            if (inDegrees[edge.to] !== undefined) {
+                inDegrees[edge.to]++;
+            }
+        });
+    
+        for (const nodeId in allNodes) {
+            if (inDegrees[nodeId] === 0) {
+                this.trueRootIds.add(nodeId);
+            }
+        }
+        console.log("Computed true roots:", this.trueRootIds);
+    }
+    
+    updateFilterControls() {
+        if (!this.filterPanel) return;
+        const nodeTypes = new Set(this.nodes.get().map(n => n.type));
+        const edgeTypes = new Set(this.edges.get().map(e => e.metadata.relationship_type));
+
+        // Wrap both columns in a single container with vertical layout
+        let filterHTML = '<div class="filter-container">';
+
+        // Nodes section
+        filterHTML += '<div class="filter-column"><h4>Nodes</h4><div class="checkbox-group">';
+        nodeTypes.forEach(type => {
+            const label = type === 'correlation_object' ? 'latent correlations' : type;
+            const isChecked = type !== 'correlation_object';
+            filterHTML += `<label><input type="checkbox" data-filter-type="node" value="${type}" ${isChecked ? 'checked' : ''}> ${label}</label>`;
+        });
+        filterHTML += '</div></div>';
+
+        // Edges section
+        filterHTML += '<div class="filter-column"><h4>Edges</h4><div class="checkbox-group">';
+        edgeTypes.forEach(type => {
+            filterHTML += `<label><input type="checkbox" data-filter-type="edge" value="${type}" checked> ${type}</label>`;
+        });
+        filterHTML += '</div></div>';
+
+        filterHTML += '</div>'; // Close filter-container
+        this.filterPanel.innerHTML = filterHTML;
+
+        this.filterPanel.querySelectorAll('input[type="checkbox"]').forEach(checkbox => {
+            checkbox.addEventListener('change', () => this.applyAllFilters());
+        });
+    }
+
+    /**
+     * ENHANCED: Apply filters using consolidated reachability analysis
+     * 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
+        const excludedNodeTypes = new Set();
+        this.filterPanel?.querySelectorAll('input[data-filter-type="node"]:not(:checked)').forEach(cb => {
+            excludedNodeTypes.add(cb.value);
+        });
+
+        const excludedEdgeTypes = new Set();
+        this.filterPanel?.querySelectorAll('input[data-filter-type="edge"]:not(:checked)').forEach(cb => {
+            excludedEdgeTypes.add(cb.value);
+        });
+
+        // Perform comprehensive analysis
+        const analysis = this.analyzeGraphReachability(new Set(), excludedEdgeTypes, excludedNodeTypes);
+
+        // Apply visibility updates
+        const nodeUpdates = this.nodes.map(node => ({
+            id: node.id,
+            hidden: !analysis.reachableNodes.has(node.id)
+        }));
+
+        const edgeUpdates = this.edges.map(edge => ({
+            id: edge.id,
+            hidden: excludedEdgeTypes.has(edge.metadata?.relationship_type || '') ||
+                   !analysis.reachableNodes.has(edge.from) ||
+                   !analysis.reachableNodes.has(edge.to)
+        }));
+
+        this.nodes.update(nodeUpdates);
+        this.edges.update(edgeUpdates);
+
+        console.log(`Enhanced filters applied. Visible nodes: ${analysis.reachableNodes.size}`);
+    }
+
+    /**
+     * ENHANCED: Hide node with forensic integrity using reachability analysis
+     * Replaces the existing hideNodeAndOrphans() method
+     */
+    hideNodeWithReachabilityAnalysis(nodeId) {
+        console.log(`Hiding node ${nodeId} with reachability analysis...`);
+        
+        // Simulate hiding this node and analyze impact
+        const excludedNodes = new Set([nodeId]);
+        const analysis = this.analyzeGraphReachability(excludedNodes);
+        
+        // Nodes that will become unreachable (should be hidden)
+        const nodesToHide = [nodeId, ...Array.from(analysis.unreachableNodes)];
+        
+        // Store history for potential revert
+        const historyData = { 
+            nodeIds: nodesToHide,
+            operation: 'hide_with_reachability',
+            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}`
+        }));
+        
+        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
         };
     }
 
     /**
-     * Apply filters to the graph
-     * @param {string} nodeType - The type of node to show ('all' for no filter)
-     * @param {number} minConfidence - The minimum confidence score for edges to be visible
+     * ENHANCED: Delete node with forensic integrity using reachability analysis
+     * Replaces the existing deleteNodeAndOrphans() method
      */
-    applyFilters(nodeType, minConfidence) {
-        console.log(`Applying filters: nodeType=${nodeType}, minConfidence=${minConfidence}`);
+    async deleteNodeWithReachabilityAnalysis(nodeId) {
+        console.log(`Deleting node ${nodeId} with reachability analysis...`);
         
-        const nodeUpdates = [];
-        const edgeUpdates = [];
+        // Simulate deletion and analyze impact
+        const excludedNodes = new Set([nodeId]);
+        const analysis = this.analyzeGraphReachability(excludedNodes);
         
-        const allNodes = this.nodes.get({ returnType: 'Object' });
-        const allEdges = this.edges.get();
+        // Nodes that will become unreachable (should be deleted)
+        const nodesToDelete = [nodeId, ...Array.from(analysis.unreachableNodes)];
         
-        // Determine which nodes are visible based on the nodeType filter
-        for (const nodeId in allNodes) {
-            const node = allNodes[nodeId];
-            const isVisible = (nodeType === 'all' || node.type === nodeType);
-            nodeUpdates.push({ id: nodeId, hidden: !isVisible });
+        // Collect forensic data before deletion
+        const historyData = {
+            nodes: nodesToDelete.map(id => this.nodes.get(id)).filter(Boolean),
+            edges: [],
+            operation: 'delete_with_reachability',
+            timestamp: Date.now(),
+            forensicAnalysis: {
+                originalTarget: nodeId,
+                cascadeNodes: nodesToDelete.length - 1,
+                isolatedClusters: analysis.isolatedClusters.length,
+                clusterSizes: analysis.isolatedClusters.map(cluster => cluster.length)
+            }
+        };
+
+        // Collect affected edges
+        nodesToDelete.forEach(id => {
+            const connectedEdgeIds = this.network.getConnectedEdges(id);
+            const edges = this.edges.get(connectedEdgeIds);
+            historyData.edges.push(...edges);
+        });
+
+        // Remove duplicates from edges
+        historyData.edges = Array.from(new Map(historyData.edges.map(e => [e.id, e])).values());
+
+        // Perform backend deletion with forensic logging
+        let operationFailed = false;
+        
+        for (const targetNodeId of nodesToDelete) {
+            try {
+                const response = await fetch(`/api/graph/node/${targetNodeId}`, {
+                    method: 'DELETE',
+                    headers: {
+                        'Content-Type': 'application/json',
+                    },
+                    body: JSON.stringify({
+                        forensicContext: {
+                            operation: 'reachability_cascade_delete',
+                            originalTarget: nodeId,
+                            analysisTimestamp: historyData.timestamp
+                        }
+                    })
+                });
+
+                const result = await response.json();
+                if (!result.success) {
+                    console.error(`Backend deletion failed for node ${targetNodeId}:`, result.error);
+                    operationFailed = true;
+                    break;
                 }
                 
-        // Update nodes first to determine edge visibility
-        this.nodes.update(nodeUpdates);
+                console.log(`Node ${targetNodeId} deleted from backend with forensic context`);
+                this.nodes.remove({ id: targetNodeId });
                 
-        // Determine which edges are visible based on confidence and connected nodes
-        for (const edge of allEdges) {
-            const sourceNode = this.nodes.get(edge.from);
-            const targetNode = this.nodes.get(edge.to);
-            const confidence = edge.metadata ? edge.metadata.confidence_score : 0;
-
-            const isVisible = confidence >= minConfidence &&
-                              sourceNode && !sourceNode.hidden &&
-                              targetNode && !targetNode.hidden;
-            
-            edgeUpdates.push({ id: edge.id, hidden: !isVisible });
+            } catch (error) {
+                console.error(`API error during deletion of node ${targetNodeId}:`, error);
+                operationFailed = true;
+                break;
+            }
         }
 
-        this.edges.update(edgeUpdates);
+        // Handle operation results
+        if (!operationFailed) {
+            this.addToHistory('delete', historyData);
+            console.log(`Forensic delete operation completed:`, historyData.forensicAnalysis);
             
-        console.log('Filters applied.');
+            return {
+                success: true,
+                deletedNodes: nodesToDelete,
+                forensicAnalysis: historyData.forensicAnalysis
+            };
+        } else {
+            // Revert UI changes if backend operations failed - use update instead of add
+            console.log("Reverting UI changes due to backend failure");
+            this.nodes.update(historyData.nodes);
+            this.edges.update(historyData.edges);
+            
+            return {
+                success: false,
+                error: "Backend deletion failed, UI reverted"
+            };
         }
     }
 
+    /**
+     * Show context menu for a node
+     * @param {string} nodeId - The ID of the node
+     * @param {Event} event - The contextmenu event
+     */
+    showContextMenu(nodeId, event) {
+        console.log('Showing context menu for node:', nodeId);
+        const node = this.nodes.get(nodeId);
+        
+        // Create menu items
+        let menuItems = `
+            <ul>
+                <li data-action="focus" data-node-id="${nodeId}">
+                    <span class="menu-icon">🎯</span>
+                    <span>Focus on Node</span>
+                </li>
+        `;
+
+        // Add "Iterate Scan" option only for domain or IP nodes
+        if (node && (node.type === 'domain' || node.type === 'ip')) {
+            const disabled = this.isScanning ? 'disabled' : ''; // Check if scanning
+            const title = this.isScanning ? 'A scan is already in progress' : 'Iterate Scan (Add to Graph)'; // Add a title for disabled state
+            menuItems += `
+                <li data-action="iterate" data-node-id="${nodeId}" ${disabled} title="${title}">
+                    <span class="menu-icon">➕</span>
+                    <span>Iterate Scan (Add to Graph)</span>
+                </li>
+            `;
+        }
+
+        menuItems += `
+                <li data-action="hide" data-node-id="${nodeId}">
+                    <span class="menu-icon">👁️‍🗨️</span>
+                    <span>Hide Node</span>
+                </li>
+                <li data-action="delete" data-node-id="${nodeId}">
+                    <span class="menu-icon">🗑️</span>
+                    <span>Delete Node</span>
+                </li>
+                <li data-action="details" data-node-id="${nodeId}">
+                    <span class="menu-icon">ℹ️</span>
+                    <span>Show Details</span>
+                </li>
+            </ul>
+        `;
+        
+        this.contextMenu.innerHTML = menuItems;
+        
+        // Position the menu
+        this.contextMenu.style.left = `${event.clientX}px`;
+        this.contextMenu.style.top = `${event.clientY}px`;
+        this.contextMenu.style.display = 'block';
+        
+        // Ensure menu stays within viewport
+        const rect = this.contextMenu.getBoundingClientRect();
+        if (rect.right > window.innerWidth) {
+            this.contextMenu.style.left = `${event.clientX - rect.width}px`;
+        }
+        if (rect.bottom > window.innerHeight) {
+            this.contextMenu.style.top = `${event.clientY - rect.height}px`;
+        }
+
+        // Add event listeners to menu items
+        this.contextMenu.querySelectorAll('li').forEach(item => {
+            item.addEventListener('click', (e) => {
+                if (e.currentTarget.hasAttribute('disabled')) { // Prevent action if disabled
+                    e.stopPropagation();
+                    return;
+                }
+                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();
+            });
+        });
+    }
+
+    /**
+     * Hide the context menu
+     */
+    hideContextMenu() {
+        if (this.contextMenu) {
+            this.contextMenu.style.display = 'none';
+        }
+    }
+
+    /**
+     * UPDATED: Enhanced context menu actions using new methods
+     * Updates the existing performContextMenuAction() method
+     */
+    performContextMenuAction(action, nodeId) {
+        console.log('Performing enhanced action:', action, 'on node:', nodeId);
+        
+        switch (action) {
+            case 'focus':
+                this.focusOnNode(nodeId);
+                break;
+                
+            case 'iterate':
+                const event = new CustomEvent('iterateScan', {
+                    detail: { nodeId }
+                });
+                document.dispatchEvent(event);
+                break;
+                
+            case 'hide':
+                // Use enhanced method with reachability analysis
+                this.hideNodeWithReachabilityAnalysis(nodeId);
+                break;
+                
+            case 'delete':
+                // Use enhanced method with reachability analysis
+                this.deleteNodeWithReachabilityAnalysis(nodeId);
+                break;
+                
+            case 'details':
+                const node = this.nodes.get(nodeId);
+                if (node) {
+                    this.showNodeDetails(node);
+                }
+                break;
+                
+            default:
+                console.warn('Unknown action:', action);
+        }
+    }
+    
+    /**
+     * Add an operation to the history stack
+     * @param {string} type - The type of operation ('hide', 'delete')
+     * @param {Object} data - The data needed to revert the operation
+     */
+    addToHistory(type, data) {
+        this.history.push({ type, data });
+    }
+
+    /**
+     * Revert the last action
+     */
+    async revertLastAction() {
+        const lastAction = this.history.pop();
+        if (!lastAction) {
+            console.log('No actions to revert.');
+            return;
+        }
+    
+        switch (lastAction.type) {
+            case 'hide':
+                // Revert hiding nodes by un-hiding them
+                const updates = lastAction.data.nodeIds.map(id => ({ id: id, hidden: false }));
+                this.nodes.update(updates);
+                break;
+            case 'delete':
+                try {
+                    const response = await fetch('/api/graph/revert', {
+                        method: 'POST',
+                        headers: {
+                            'Content-Type': 'application/json',
+                        },
+                        body: JSON.stringify(lastAction)
+                    });
+                    const result = await response.json();
+    
+                    if (result.success) {
+                        console.log('Delete action reverted successfully on backend.');
+                        // Re-add all nodes and edges from the history to the local view - use update instead of add
+                        this.nodes.update(lastAction.data.nodes);
+                        this.edges.update(lastAction.data.edges);
+                    } else {
+                        console.error('Failed to revert delete action on backend:', result.error);
+                        // Push the action back onto the history stack if the API call failed
+                        this.history.push(lastAction);
+                    }
+                } catch (error) {
+                    console.error('Error during revert API call:', error);
+                    this.history.push(lastAction);
+                }
+                break;
+        }
+    }
+
+    /**
+     * Unhide all hidden nodes
+     */
+    unhideAll() {
+        const allNodes = this.nodes.get({
+            filter: (node) => node.hidden === true
+        });
+        const updates = allNodes.map(node => ({ id: node.id, hidden: false }));
+        this.nodes.update(updates);
+    }
+    
+}
+
 // Export for use in main.js
 window.GraphManager = GraphManager;

templates/index.html

@@ -32,19 +32,8 @@
                 
                 <div class="form-container">
                     <div class="input-group">
-                        <label for="target-domain">Target Domain</label>
-                        <input type="text" id="target-domain" placeholder="example.com" autocomplete="off">
-                    </div>
-                    
-                    <div class="input-group">
-                        <label for="max-depth">Recursion Depth</label>
-                        <select id="max-depth">
-                            <option value="1">Depth 1 - Direct relationships</option>
-                            <option value="2" selected>Depth 2 - Recommended</option>
-                            <option value="3">Depth 3 - Extended analysis</option>
-                            <option value="4">Depth 4 - Deep reconnaissance</option>
-                            <option value="5">Depth 5 - Maximum depth</option>
-                        </select>
+                        <label for="target-input">Target Domain or IP</label>
+                        <input type="text" id="target-input" placeholder="example.com or 8.8.8.8" autocomplete="off">
                     </div>
                     
                     <div class="button-group">
@@ -64,9 +53,9 @@
                             <span class="btn-icon">[EXPORT]</span>
                             <span>Download Results</span>
                         </button>
-                        <button id="configure-api-keys" class="btn btn-secondary">
+                        <button id="configure-settings" class="btn btn-secondary">
                             <span class="btn-icon">[API]</span>
-                            <span>Configure API Keys</span>
+                            <span>Settings</span>
                         </button>
                     </div>
                 </div>
@@ -90,46 +79,36 @@
                         <span class="status-label">Depth:</span>
                         <span id="depth-display" class="status-value">0/0</span>
                     </div>
-                    <div class="status-row">
-                        <span class="status-label">Progress:</span>
-                        <span id="progress-display" class="status-value">0%</span>
-                    </div>
-                    <div class="status-row">
-                        <span class="status-label">Indicators:</span>
-                        <span id="indicators-display" class="status-value">0</span>
-                    </div>
                     <div class="status-row">
                         <span class="status-label">Relationships:</span>
                         <span id="relationships-display" class="status-value">0</span>
                     </div>
                 </div>
                 
+                <div class="progress-container">
+                    <div class="progress-info">
+                        <span id="progress-label">Progress:</span>
+                        <span id="progress-compact">0/0</span>
+                    </div>
                     <div class="progress-bar">
                         <div id="progress-fill" class="progress-fill"></div>
                     </div>
+                    <div class="progress-placeholder">
+                        <span class="status-label">
+                            ⚠️ <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)
+                            are <strong>automatically deprioritized</strong> and may be processed later.
+                        </span>
+                    </div>
+                </div>
             </section>
 
             <section class="visualization-panel">
                 <div class="panel-header">
                     <h2>Infrastructure Map</h2>
-                    <div class="view-controls">
-                        <div class="filter-group">
-                            <label for="node-type-filter">Node Type:</label>
-                            <select id="node-type-filter">
-                                <option value="all">All</option>
-                                <option value="domain">Domain</option>
-                                <option value="ip">IP</option>
-                                <option value="asn">ASN</option>
-                                <option value="correlation_object">Correlation Object</option>
-                                <option value="large_entity">Large Entity</option>
-                            </select>
-                        </div>
-                        <div class="filter-group">
-                            <label for="confidence-filter">Min Confidence:</label>
-                            <input type="range" id="confidence-filter" min="0" max="1" step="0.1" value="0">
-                            <span id="confidence-value">0</span>
-                        </div>
-                    </div>
                 </div>
                 
                 <div id="network-graph" class="graph-container">
@@ -207,16 +186,28 @@
             </div>
         </div>
 
-        <div id="api-key-modal" class="modal">
+        <div id="settings-modal" class="modal">
             <div class="modal-content">
                 <div class="modal-header">
-                    <h3>Configure API Keys</h3>
-                    <button id="api-key-modal-close" class="modal-close">[×]</button>
+                    <h3>Settings</h3>
+                    <button id="settings-modal-close" class="modal-close">[×]</button>
                 </div>
                 <div class="modal-body">
                     <p class="modal-description">
-                        Enter your API keys for enhanced data providers. Keys are stored in memory for the current session only and are never saved to disk.
+                        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="input-group">
+                        <label for="max-depth">Recursion Depth</label>
+                        <select id="max-depth">
+                            <option value="1">Depth 1 - Direct relationships</option>
+                            <option value="2" selected>Depth 2 - Recommended</option>
+                            <option value="3">Depth 3 - Extended analysis</option>
+                            <option value="4">Depth 4 - Deep reconnaissance</option>
+                            <option value="5">Depth 5 - Maximum depth</option>
+                        </select>
+                    </div>
                     <div id="api-key-inputs">
                         </div>
                     <div class="button-group" style="flex-direction: row; justify-content: flex-end;">
@@ -224,7 +215,7 @@
                             <span>Reset</span>
                         </button>
                         <button id="save-api-keys" class="btn btn-primary">
-                            <span>Save Keys</span>
+                            <span>Save API-Keys</span>
                         </button>
                     </div>
                 </div>

utils/helpers.py

@@ -48,3 +48,15 @@ def _is_valid_ip(ip: str) -> bool:
 
     except (ValueError, AttributeError):
         return False
+
+def is_valid_target(target: str) -> bool:
+    """
+    Checks if the target is a valid domain or IP address.
+
+    Args:
+        target: The target string to validate.
+
+    Returns:
+        True if the target is a valid domain or IP, False otherwise.
+    """
+    return _is_valid_domain(target) or _is_valid_ip(target)