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https://github.com/overcuriousity/autopsy-flatpak.git
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117 lines
2.8 KiB
Python
117 lines
2.8 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2011 Tomo Krajina
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sys as mod_sys
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import math as mod_math
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import xml.sax.saxutils as mod_saxutils
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PYTHON_VERSION = mod_sys.version.split(' ')[0]
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def to_xml(tag, attributes=None, content=None, default=None, escape=False):
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attributes = attributes or {}
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result = '\n<%s' % tag
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if content is None and default:
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content = default
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if attributes:
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for attribute in attributes.keys():
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result += make_str(' %s="%s"' % (attribute, attributes[attribute]))
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if content is None:
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result += '/>'
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else:
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if escape:
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result += make_str('>%s</%s>' % (mod_saxutils.escape(content), tag))
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else:
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result += make_str('>%s</%s>' % (content, tag))
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result = make_str(result)
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return result
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def is_numeric(object):
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try:
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float(object)
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return True
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except TypeError:
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return False
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except ValueError:
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return False
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def to_number(s, default=0, nan_value=None):
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try:
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result = float(s)
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if mod_math.isnan(result):
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return nan_value
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return result
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except TypeError:
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pass
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except ValueError:
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pass
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return default
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def total_seconds(timedelta):
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""" Some versions of python dont have timedelta.total_seconds() method. """
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if timedelta is None:
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return None
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return (timedelta.days * 86400) + timedelta.seconds
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# Hash utilities:
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def __hash(obj):
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result = 0
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if obj is None:
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return result
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elif isinstance(obj, dict):
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raise RuntimeError('__hash_single_object for dict not yet implemented')
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elif isinstance(obj, list) or isinstance(obj, tuple):
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return hash_list_or_tuple(obj)
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return hash(obj)
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def hash_list_or_tuple(iteration):
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result = 17
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for obj in iteration:
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result = result * 31 + __hash(obj)
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return result
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def hash_object(obj, attributes):
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result = 19
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for attribute in attributes:
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result = result * 31 + __hash(getattr(obj, attribute))
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return result
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def make_str(s):
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""" Convert a str or unicode object into a str type. """
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if PYTHON_VERSION[0] == '2':
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if isinstance(s, unicode):
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return s.encode("utf-8")
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return str(s)
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