tools v5.0
Introduction of alfcrypto library for speed Reorganisation of archive plugins,apps,other
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@@ -16,15 +16,18 @@ if 'calibre' in sys.modules:
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else:
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inCalibre = False
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buildXML = False
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import os, csv, getopt
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import zlib, zipfile, tempfile, shutil
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from struct import pack
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from struct import unpack
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from alfcrypto import Topaz_Cipher
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class TpzDRMError(Exception):
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pass
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# local support routines
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if inCalibre:
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from calibre_plugins.k4mobidedrm import kgenpids
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@@ -58,22 +61,22 @@ def bookReadEncodedNumber(fo):
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flag = False
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data = ord(fo.read(1))
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if data == 0xFF:
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flag = True
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data = ord(fo.read(1))
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flag = True
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data = ord(fo.read(1))
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if data >= 0x80:
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datax = (data & 0x7F)
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while data >= 0x80 :
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data = ord(fo.read(1))
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datax = (datax <<7) + (data & 0x7F)
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data = datax
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data = datax
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if flag:
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data = -data
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data = -data
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return data
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# Get a length prefixed string from file
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# Get a length prefixed string from file
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def bookReadString(fo):
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stringLength = bookReadEncodedNumber(fo)
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return unpack(str(stringLength)+"s",fo.read(stringLength))[0]
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return unpack(str(stringLength)+"s",fo.read(stringLength))[0]
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#
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# crypto routines
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@@ -81,25 +84,28 @@ def bookReadString(fo):
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# Context initialisation for the Topaz Crypto
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def topazCryptoInit(key):
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ctx1 = 0x0CAFFE19E
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for keyChar in key:
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keyByte = ord(keyChar)
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ctx2 = ctx1
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ctx1 = ((((ctx1 >>2) * (ctx1 >>7))&0xFFFFFFFF) ^ (keyByte * keyByte * 0x0F902007)& 0xFFFFFFFF )
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return [ctx1,ctx2]
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return Topaz_Cipher().ctx_init(key)
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# ctx1 = 0x0CAFFE19E
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# for keyChar in key:
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# keyByte = ord(keyChar)
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# ctx2 = ctx1
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# ctx1 = ((((ctx1 >>2) * (ctx1 >>7))&0xFFFFFFFF) ^ (keyByte * keyByte * 0x0F902007)& 0xFFFFFFFF )
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# return [ctx1,ctx2]
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# decrypt data with the context prepared by topazCryptoInit()
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def topazCryptoDecrypt(data, ctx):
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ctx1 = ctx[0]
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ctx2 = ctx[1]
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plainText = ""
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for dataChar in data:
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dataByte = ord(dataChar)
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m = (dataByte ^ ((ctx1 >> 3) &0xFF) ^ ((ctx2<<3) & 0xFF)) &0xFF
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ctx2 = ctx1
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ctx1 = (((ctx1 >> 2) * (ctx1 >> 7)) &0xFFFFFFFF) ^((m * m * 0x0F902007) &0xFFFFFFFF)
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plainText += chr(m)
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return plainText
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return Topaz_Cipher().decrypt(data, ctx)
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# ctx1 = ctx[0]
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# ctx2 = ctx[1]
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# plainText = ""
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# for dataChar in data:
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# dataByte = ord(dataChar)
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# m = (dataByte ^ ((ctx1 >> 3) &0xFF) ^ ((ctx2<<3) & 0xFF)) &0xFF
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# ctx2 = ctx1
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# ctx1 = (((ctx1 >> 2) * (ctx1 >> 7)) &0xFFFFFFFF) ^((m * m * 0x0F902007) &0xFFFFFFFF)
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# plainText += chr(m)
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# return plainText
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# Decrypt data with the PID
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def decryptRecord(data,PID):
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@@ -153,7 +159,7 @@ class TopazBook:
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def parseTopazHeaders(self):
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def bookReadHeaderRecordData():
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# Read and return the data of one header record at the current book file position
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# Read and return the data of one header record at the current book file position
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# [[offset,decompressedLength,compressedLength],...]
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nbValues = bookReadEncodedNumber(self.fo)
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values = []
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@@ -213,11 +219,11 @@ class TopazBook:
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self.bookKey = key
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def getBookPayloadRecord(self, name, index):
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# Get a record in the book payload, given its name and index.
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# decrypted and decompressed if necessary
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# Get a record in the book payload, given its name and index.
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# decrypted and decompressed if necessary
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encrypted = False
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compressed = False
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try:
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try:
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recordOffset = self.bookHeaderRecords[name][index][0]
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except:
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raise TpzDRMError("Parse Error : Invalid Record, record not found")
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@@ -268,8 +274,8 @@ class TopazBook:
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rv = genbook.generateBook(self.outdir, raw, fixedimage)
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if rv == 0:
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print "\nBook Successfully generated"
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return rv
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return rv
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# try each pid to decode the file
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bookKey = None
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for pid in pidlst:
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@@ -297,7 +303,7 @@ class TopazBook:
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rv = genbook.generateBook(self.outdir, raw, fixedimage)
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if rv == 0:
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print "\nBook Successfully generated"
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return rv
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return rv
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def createBookDirectory(self):
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outdir = self.outdir
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@@ -361,7 +367,7 @@ class TopazBook:
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zipUpDir(svgzip, self.outdir, 'svg')
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zipUpDir(svgzip, self.outdir, 'img')
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svgzip.close()
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def getXMLZip(self, zipname):
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xmlzip = zipfile.ZipFile(zipname,'w',zipfile.ZIP_DEFLATED, False)
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targetdir = os.path.join(self.outdir,'xml')
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@@ -371,23 +377,23 @@ class TopazBook:
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def cleanup(self):
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if os.path.isdir(self.outdir):
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pass
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# shutil.rmtree(self.outdir, True)
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shutil.rmtree(self.outdir, True)
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def usage(progname):
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print "Removes DRM protection from Topaz ebooks and extract the contents"
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print "Usage:"
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print " %s [-k <kindle.info>] [-p <pidnums>] [-s <kindleSerialNumbers>] <infile> <outdir> " % progname
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# Main
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def main(argv=sys.argv):
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global buildXML
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progname = os.path.basename(argv[0])
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k4 = False
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pids = []
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serials = []
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kInfoFiles = []
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try:
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opts, args = getopt.getopt(sys.argv[1:], "k:p:s:")
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except getopt.GetoptError, err:
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@@ -397,7 +403,7 @@ def main(argv=sys.argv):
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if len(args)<2:
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usage(progname)
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return 1
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for o, a in opts:
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if o == "-k":
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if a == None :
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@@ -429,7 +435,7 @@ def main(argv=sys.argv):
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title = tb.getBookTitle()
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print "Processing Book: ", title
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keysRecord, keysRecordRecord = tb.getPIDMetaInfo()
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pidlst = kgenpids.getPidList(keysRecord, keysRecordRecord, k4, pids, serials, kInfoFiles)
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pidlst = kgenpids.getPidList(keysRecord, keysRecordRecord, k4, pids, serials, kInfoFiles)
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try:
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print "Decrypting Book"
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@@ -443,9 +449,10 @@ def main(argv=sys.argv):
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zipname = os.path.join(outdir, bookname + '_SVG' + '.zip')
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tb.getSVGZip(zipname)
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print " Creating XML ZIP Archive"
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zipname = os.path.join(outdir, bookname + '_XML' + '.zip')
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tb.getXMLZip(zipname)
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if buildXML:
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print " Creating XML ZIP Archive"
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zipname = os.path.join(outdir, bookname + '_XML' + '.zip')
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tb.getXMLZip(zipname)
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# removing internal temporary directory of pieces
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tb.cleanup()
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@@ -461,9 +468,8 @@ def main(argv=sys.argv):
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return 1
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return 0
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if __name__ == '__main__':
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sys.stdout=Unbuffered(sys.stdout)
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sys.exit(main())
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