63 lines
2.4 KiB
Python
63 lines
2.4 KiB
Python
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#!/usr/bin/env python3
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import os
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import re
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class Module:
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def __init__(self, incoming=False, verbose=False, options=None):
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# extract the file name from __file__. __file__ is proxymodules/name.py
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self.name = os.path.splitext(os.path.basename(__file__))[0]
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self.description = 'Replace text on the fly by using regular expressions in a file or as module parameters'
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self.verbose = verbose
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self.search = None
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self.replace = None
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self.filename = None
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self.separator = ':'
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if options is not None:
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if 'search' in options.keys():
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self.search = bytes(options['search'], 'ascii')
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if 'replace' in options.keys():
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self.replace = bytes(options['replace'], 'ascii')
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if 'file' in options.keys():
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self.filename = options['file']
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try:
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open(self.filename)
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except IOError as ioe:
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print("Error opening %s: %s" % (self.filename, ioe.strerror))
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self.filename = None
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if 'separator' in options.keys():
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self.separator = options['separator']
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def execute(self, data):
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pairs = [] # list of (search, replace) tuples
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if self.search is not None and self.replace is not None:
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pairs.append((self.search, self.replace))
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if self.filename is not None:
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for line in open(self.filename).readlines():
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try:
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search, replace = line.split(self.separator, 1)
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pairs.append((bytes(search.strip(), 'ascii'), bytes(replace.strip(), 'ascii')))
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except ValueError:
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# line does not contain separator and will be ignored
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pass
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for search, replace in pairs:
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# TODO: verbosity
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data = re.sub(search, replace, data)
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return data
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def help(self):
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h = '\tsearch: string or regular expression to search for\n'
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h += ('\treplace: string the search string should be replaced with\n')
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h += ('\tfile: file containing search:replace pairs, one per line\n')
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h += ('\tseparator: define a custom search:replace separator in the file, e.g. search#replace\n')
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h += ('\n\tUse at least file or search and replace (or both).\n')
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return h
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if __name__ == '__main__':
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print('This module is not supposed to be executed alone!')
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