Attachment 601912 Details for Bug 838033 – Python trace when opening the zip file

Python trace when opening the zip file

zip64.trace (text/plain), 5.15 KB, created by pierre.casenove on 2012-08-02 09:39:05 UTC

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Creator: pierre.casenove

Created: 2012-08-02 09:39:05 UTC

Size: 5.15 KB

patch

obsolete

>pm.py(47):         pkgdir = ""
>pm.py(48):         ret = 0
>pm.py(51):         saved_cwd = os.getcwd()
>pm.py(53):         try:
>pm.py(54):             if os.path.isdir(path):
> --- modulename: posixpath, funcname: isdir
>posixpath.py(194):     try:
>posixpath.py(195):         st = os.stat(path)
>posixpath.py(198):     return stat.S_ISDIR(st.st_mode)
> --- modulename: stat, funcname: S_ISDIR
>stat.py(46):     return S_IFMT(mode) == S_IFDIR
> --- modulename: stat, funcname: S_IFMT
>stat.py(30):     return mode & 0170000
>pm.py(58):                 if not zipfile.is_zipfile(path):
> --- modulename: zipfile, funcname: is_zipfile
>zipfile.py(68):     try:
>zipfile.py(69):         fpin = open(filename, "rb")
>zipfile.py(70):         endrec = _EndRecData(fpin)
> --- modulename: zipfile, funcname: _EndRecData
>zipfile.py(83):     fpin.seek(-22, 2)               # Assume no archive comment.
>zipfile.py(84):     filesize = fpin.tell() + 22     # Get file size
>zipfile.py(85):     data = fpin.read()
>zipfile.py(86):     if data[0:4] == stringEndArchive and data[-2:] == "\000\000":
>zipfile.py(87):         endrec = struct.unpack(structEndArchive, data)
>zipfile.py(88):         endrec = list(endrec)
>zipfile.py(89):         endrec.append("")               # Append the archive comment
>zipfile.py(90):         endrec.append(filesize - 22)    # Append the record start offset
>zipfile.py(91):         return endrec
>zipfile.py(71):         fpin.close()
>zipfile.py(72):         if endrec:
>zipfile.py(73):             return True                 # file has correct magic number
>pm.py(62):                 cmdstr = "unzip -u %s -d %s" % (path, tdir)
>pm.py(63):                 ret, x = commands.getstatusoutput(cmdstr)
> --- modulename: commands, funcname: getstatusoutput
>commands.py(52):     import os
>commands.py(53):     pipe = os.popen('{ ' + cmd + '; } 2>&1', 'r')
>commands.py(54):     text = pipe.read()
>commands.py(55):     sts = pipe.close()
>commands.py(56):     if sts is None: sts = 0
>commands.py(57):     if text[-1:] == '\n': text = text[:-1]
>commands.py(58):     return sts, text
>pm.py(65):                 if ret != 0:
>pm.py(69):                 zf = zipfile.ZipFile(path)
> --- modulename: zipfile, funcname: __init__
>zipfile.py(184):         if compression == ZIP_STORED:
>zipfile.py(185):             pass
>zipfile.py(192):         self.debug = 0  # Level of printing: 0 through 3
>zipfile.py(193):         self.NameToInfo = {}    # Find file info given name
>zipfile.py(194):         self.filelist = []      # List of ZipInfo instances for archive
>zipfile.py(195):         self.compression = compression  # Method of compression
>zipfile.py(196):         self.mode = key = mode.replace('b', '')[0]
>zipfile.py(199):         if isinstance(file, basestring):
>zipfile.py(200):             self._filePassed = 0
>zipfile.py(201):             self.filename = file
>zipfile.py(202):             modeDict = {'r' : 'rb', 'w': 'wb', 'a' : 'r+b'}
>zipfile.py(203):             self.fp = open(file, modeDict[mode])
>zipfile.py(209):         if key == 'r':
>zipfile.py(210):             self._GetContents()
> --- modulename: zipfile, funcname: _GetContents
>zipfile.py(229):         try:
>zipfile.py(230):             self._RealGetContents()
> --- modulename: zipfile, funcname: _RealGetContents
>zipfile.py(239):         fp = self.fp
>zipfile.py(240):         endrec = _EndRecData(fp)
> --- modulename: zipfile, funcname: _EndRecData
>zipfile.py(83):     fpin.seek(-22, 2)               # Assume no archive comment.
>zipfile.py(84):     filesize = fpin.tell() + 22     # Get file size
>zipfile.py(85):     data = fpin.read()
>zipfile.py(86):     if data[0:4] == stringEndArchive and data[-2:] == "\000\000":
>zipfile.py(87):         endrec = struct.unpack(structEndArchive, data)
>zipfile.py(88):         endrec = list(endrec)
>zipfile.py(89):         endrec.append("")               # Append the archive comment
>zipfile.py(90):         endrec.append(filesize - 22)    # Append the record start offset
>zipfile.py(91):         return endrec
>zipfile.py(241):         if not endrec:
>zipfile.py(243):         if self.debug > 1:
>zipfile.py(245):         size_cd = endrec[5]             # bytes in central directory
>zipfile.py(246):         offset_cd = endrec[6]   # offset of central directory
>zipfile.py(247):         self.comment = endrec[8]        # archive comment
>zipfile.py(249):         x = endrec[9] - size_cd
>zipfile.py(251):         concat = x - offset_cd
>zipfile.py(252):         if self.debug > 2:
>zipfile.py(255):         self.start_dir = offset_cd + concat
>zipfile.py(256):         fp.seek(self.start_dir, 0)
>zipfile.py(257):         total = 0
>zipfile.py(258):         while total < size_cd:
>zipfile.py(259):             centdir = fp.read(46)
>zipfile.py(260):             total = total + 46
>zipfile.py(261):             if centdir[0:4] != stringCentralDir:
>zipfile.py(262):                 raise BadZipfile, "Bad magic number for central directory"
>zipfile.py(231):         except BadZipfile:
>zipfile.py(232):             if not self._filePassed:
>zipfile.py(233):                 self.fp.close()
>zipfile.py(234):                 self.fp = None
>zipfile.py(235):             raise
>pm.py(118):             os.chdir(saved_cwd)
>pm.py(121):             if ret == 0:
>pm.py(122):                 shutil.rmtree(tdir)
>

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Attachments on bug 838033: 601912 | 649197 | 649550