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https://github.com/apprenticeharper/DeDRM_tools
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tools v1.1
This commit is contained in:
Apprentice Alf
parent
f8154c4615
commit
2819550411
2 changed files with 61 additions and 42 deletions
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@ -62,7 +62,7 @@ class ASN1Parser(object):
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def __init__(self, bytes):
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self.bytes = bytes
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self.index = 0
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def get(self, length):
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if self.index + length > len(self.bytes):
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raise ASN1Error("Error decoding ASN.1")
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@ -72,22 +72,22 @@ class ASN1Parser(object):
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x |= self.bytes[self.index]
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self.index += 1
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return x
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def getFixBytes(self, lengthBytes):
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bytes = self.bytes[self.index : self.index+lengthBytes]
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self.index += lengthBytes
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return bytes
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def getVarBytes(self, lengthLength):
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lengthBytes = self.get(lengthLength)
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return self.getFixBytes(lengthBytes)
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def getFixList(self, length, lengthList):
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l = [0] * lengthList
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for x in range(lengthList):
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l[x] = self.get(length)
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return l
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def getVarList(self, length, lengthLength):
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lengthList = self.get(lengthLength)
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if lengthList % length != 0:
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@ -97,19 +97,19 @@ class ASN1Parser(object):
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for x in range(lengthList):
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l[x] = self.get(length)
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return l
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def startLengthCheck(self, lengthLength):
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self.lengthCheck = self.get(lengthLength)
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self.indexCheck = self.index
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def setLengthCheck(self, length):
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self.lengthCheck = length
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self.indexCheck = self.index
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def stopLengthCheck(self):
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if (self.index - self.indexCheck) != self.lengthCheck:
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raise ASN1Error("Error decoding ASN.1")
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def atLengthCheck(self):
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if (self.index - self.indexCheck) < self.lengthCheck:
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return False
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@ -162,7 +162,7 @@ class Decryptor(object):
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path = elem.get('URI', None)
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if path is not None:
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encrypted.add(path)
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def decompress(self, bytes):
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dc = zlib.decompressobj(-15)
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bytes = dc.decompress(bytes)
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@ -170,7 +170,7 @@ class Decryptor(object):
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if ex:
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bytes = bytes + ex
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return bytes
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def decrypt(self, path, data):
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if path in self._encrypted:
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data = self._aes.decrypt(data)[16:]
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@ -336,5 +336,6 @@ def gui_main():
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return 0
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if __name__ == '__main__':
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# sys.exit(cli_main())
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if len(sys.argv) > 1:
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sys.exit(cli_main())
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sys.exit(gui_main())
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@ -346,35 +346,40 @@ class DocParser(object):
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if end == -1 :
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end = self.docSize
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# seems some xml has last* coming before first* so we have to
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# handle any order
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sp_first = -1
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sp_last = -1
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gl_first = -1
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gl_last = -1
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ws_first = -1
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ws_last = -1
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word_class = ''
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while (line < end) :
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(name, argres) = self.lineinDoc(line)
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# handle both span and _span
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if name.endswith('span.firstWord') :
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first = int(argres)
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(name, argres) = self.lineinDoc(line+1)
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if not name.endswith('span.lastWord'):
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print 'Error: - incorrect _span ordering inside paragraph'
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last = int(argres)
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for wordnum in xrange(first, last):
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result.append(('ocr', wordnum))
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line += 1
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sp_first = int(argres)
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elif name.endswith('span.lastWord') :
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sp_last = int(argres)
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elif name.endswith('word.firstGlyph') :
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first = int(argres)
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(name, argres) = self.lineinDoc(line+1)
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if not name.endswith('word.lastGlyph'):
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print 'Error: - incorrect glyph ordering inside word in paragraph'
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last = int(argres)
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glyphList = []
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for glyphnum in xrange(first, last):
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glyphList.append(glyphnum)
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num = self.svgcount
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self.glyphs_to_image(glyphList)
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self.svgcount += 1
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result.append(('svg', num))
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line += 1
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gl_first = int(argres)
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elif name.endswith('word.lastGlyph') :
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gl_last = int(argres)
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elif name.endswith('word_semantic.firstWord'):
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ws_first = int(argres)
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elif name.endswith('word_semantic.lastWord'):
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ws_last = int(argres)
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elif name.endswith('word.class'):
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(cname, space) = argres.split('-',1)
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@ -386,15 +391,28 @@ class DocParser(object):
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result.append(('img' + word_class, int(argres)))
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word_class = ''
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elif name.endswith('word_semantic.firstWord'):
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first = int(argres)
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(name, argres) = self.lineinDoc(line+1)
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if not name.endswith('word_semantic.lastWord'):
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print 'Error: - incorrect word_semantic ordering inside paragraph'
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last = int(argres)
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for wordnum in xrange(first, last):
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if (sp_first != -1) and (sp_last != -1):
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for wordnum in xrange(sp_first, sp_last):
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result.append(('ocr', wordnum))
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line += 1
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sp_first = -1
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sp_last = -1
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if (gl_first != -1) and (gl_last != -1):
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glyphList = []
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for glyphnum in xrange(gl_first, gl_last):
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glyphList.append(glyphnum)
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num = self.svgcount
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self.glyphs_to_image(glyphList)
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self.svgcount += 1
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result.append(('svg', num))
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gl_first = -1
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gl_last = -1
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if (ws_first != -1) and (ws_last != -1):
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for wordnum in xrange(ws_first, ws_last):
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result.append(('ocr', wordnum))
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ws_first = -1
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ws_last = -1
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line += 1
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