text: #!/usr/bin/env python
  # Copyright 2013 The Chromium Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  
  """A tool to extract minidumps from dmp crash dumps."""
  
  import os
  import sys
  from cgi import parse_multipart
  
  
  def ProcessDump(dump_file, minidump_file):
    """Extracts the part of the dump file that minidump_stackwalk can read.
  
    The dump files generated by the breakpad integration multi-part form data
    that include the minidump as file attachment.
  
    Args:
      dump_file: the dump file that needs to be processed.
      minidump_file: the file to write the minidump to.
    """
    try:
      dump = open(dump_file, 'rb')
      boundary = dump.readline().strip()[2:]
      data = parse_multipart(dump, {'boundary': boundary})
    except:
      print 'Failed to read dmp file %s' % dump_file
      return
  
    if not 'upload_file_minidump' in data:
      print 'Could not find minidump file in dump.'
      return
  
    f = open(minidump_file, 'w')
    f.write("\r\n".join(data['upload_file_minidump']))
    f.close()
  
  
  def main():
    if len(sys.argv) != 3:
      print 'Usage: %s [dmp file] [minidump]' % sys.argv[0]
      print ''
      print 'Extracts the minidump stored in the crash dump file'
      return 1
  
    ProcessDump(sys.argv[1], sys.argv[2])
  
  
  if '__main__' == __name__:
    sys.exit(main())
  