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wangroot/unwxapkg.py

Forked from feix/unwxapkg.py
Created January 17, 2018 15:00
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  1. @feix feix revised this gist Jan 1, 2018. 1 changed file with 1 addition and 0 deletions.
    1 change: 1 addition & 0 deletions unwxapkg.py
    View file
    Original file line number Diff line number Diff line change
    @@ -1,5 +1,6 @@
    #!/usr/bin/env python2

    # lrdcq
    # usage python2 unwxapkg.py filename

    import sys, os
  2. @feix feix created this gist Dec 31, 2017.
    84 changes: 84 additions & 0 deletions unwxapkg.py
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,84 @@
    #!/usr/bin/env python2

    # usage python2 unwxapkg.py filename

    import sys, os
    import struct

    class WxapkgFile(object):
    nameLen = 0
    name = ""
    offset = 0
    size = 0


    if len(sys.argv) < 2:
    print 'usage: unwxapkg.py filename'
    exit()


    with open(sys.argv[1], "rb") as f:

    root = os.path.dirname(os.path.realpath(f.name))
    name = os.path.basename(f.name) + '_dir'

    if len(sys.argv) > 2:
    name = sys.argv[2]

    #read header

    firstMark = struct.unpack('B', f.read(1))[0]
    print 'first header mark = ' + str(firstMark)

    info1 = struct.unpack('>L', f.read(4))[0]
    print 'info1 = ' + str(info1)

    indexInfoLength = struct.unpack('>L', f.read(4))[0]
    print 'indexInfoLength = ' + str(indexInfoLength)

    bodyInfoLength = struct.unpack('>L', f.read(4))[0]
    print 'bodyInfoLength = ' + str(bodyInfoLength)

    lastMark = struct.unpack('B', f.read(1))[0]
    print 'last header mark = ' + str(lastMark)

    if firstMark != 0xBE or lastMark != 0xED:
    print 'its not a wxapkg file!!!!!'
    exit()

    fileCount = struct.unpack('>L', f.read(4))[0]
    print 'fileCount = ' + str(fileCount)

    #read index

    fileList = []

    for i in range(fileCount):

    data = WxapkgFile()
    data.nameLen = struct.unpack('>L', f.read(4))[0]
    data.name = f.read(data.nameLen)
    data.offset = struct.unpack('>L', f.read(4))[0]
    data.size = struct.unpack('>L', f.read(4))[0]

    print 'readFile = ' + data.name + ' at Offset = ' + str(data.offset)

    fileList.append(data)

    #save files

    for d in fileList:
    d.name = '/' + name + d.name
    path = root + os.path.dirname(d.name)

    if not os.path.exists(path):
    os.makedirs(path)

    w = open(root + d.name, 'w')
    f.seek(d.offset)
    w.write(f.read(d.size))
    w.close()

    print 'writeFile = ' + root + d.name

    f.close()