tools/tbird2claws.py

   1 #!/usr/bin/env python3
   2
   3 # Script name : tbird2claws.py
   4 # Script purpose : Integrate a Thunderbird folder tree to Claws Mail
   5 # Author : Aleksandar Urosevic aka Urke MMI <urke@gmx.net>
   6 # Licence : GPL
   7 # Author: Rodrigo Dias Arruda Senra
   8
   9 #The script receives two parameters from command-line:
  10 #<Thunderbird folder path> <Claws Mail folder path>
  11
  12 #Best way to use it is to go to inside yout Thunderbird
  13 #root mailfolder directory and invoke it as:
  14
  15 #<path>\python3 <path>\tbird2claws.py . <path to claws-mail>\Mail
  16
  17 import os
  18 import sys
  19 import importlib
  20
  21 __author__ = 'Rodrigo Senra <rsenra@acm.org>'
  22 __date__ =  '2005-03-23'
  23 __version__ =  '0.3'
  24
  25 __doc__ = r"""
  26 This module integrates your Mozilla Thunderbird 1.0 tree to
  27 your Claws Mail MH mailbox tree.
  28
  29 The script receives two parameters from command-line:
  30  <Thunderbird folder path> <Claws Mail folder path>
  31
  32 Best way to use it is to go to inside your Thunderbird
  33 root mailfolder directory and invoke it as:
  34
  35   <path>\python3 <path>\tbird2claws.py . <path to claws mail>\Mail
  36
  37 This idiom will avoid the creation of the folder Thunderbird inside
  38 your Claws Mail folder tree.
  39
  40 If the names of your directories match in both trees, files should
  41 be placed in the correct folder.
  42
  43 This is an alpha release, so it may be a little rough around the edges.
  44 Nevertheless, I used it with great success to convert a very large and
  45 deep folder tree.
  46
  47 Please, do backup your claws-mail (destination) folder tree before trying
  48 this out. Live safe and die old!
  49
  50 This code is released in the public domain.
  51 """
  52
  53 def harvest_offsets(filepath):
  54     """Given the filepath, this runs through the file finding
  55     the number of the line where a message begins.
  56
  57     The function returns a list of integers corresponding to
  58     the beginning of messages.
  59     """
  60     offsets = []
  61     i = 0
  62     state = 'begin'
  63     for i,line in enumerate(open(filepath)):
  64         if line.startswith('From - ') and state!='found_head':
  65            offsets.append(i)
  66            continue
  67 #        elif line.startswith('Return-Path') and state=='found_head':
  68 #           state = 'found_offset'
  69 #           offsets.append(i)
  70 #           continue
  71     offsets.append(i)
  72     return offsets
  73
  74 def make_messages(outputdir, filepath, offsets, start):
  75     """Given a filepath holding several messages in Thunderbird format,
  76     extract the messages and create individual files for them, inside
  77     outputdir with appropriate the appropriate naming scheme.
  78     """
  79     if not os.path.exists(outputdir):
  80         os.makedirs(outputdir)
  81     if not os.path.exists(filepath):
  82         raise Exception('Cannot find message file  %s'%(filepath))
  83     lines = open(filepath).readlines()
  84     aux = offsets[:]
  85     msgoffs = zip(offsets[:-1], aux[1:])
  86     for i,j in msgoffs:
  87        fd  = open(os.path.join(outputdir,"%d"%start),"w")
  88        fd.write(''.join(lines[i:j-1])) #-1 to remove first from line
  89        fd.close()
  90        start +=1
  91
  92 def process_file(filepath, outputdir):
  93     """Integrates a Thunderbird message file into a claws-mail message directory.
  94     """
  95     offs = harvest_offsets(filepath)
  96     make_messages(outputdir, filepath, offs, 1)
  97
  98 def clean_path(path):
  99     """Rename all directories and subdirectories <X>.sbd to <X>
 100     """
 101     l = []
 102     f = os.path.basename(path)
 103     while f and f != "":
 104         if f.endswith('.sbd'):
 105             f = f[:-4]
 106         l.append(f)
 107         path = os.path.dirname(path)
 108         f = os.path.basename(path)
 109     l.reverse()
 110     r = os.path.join(*l)
 111     return r
 112
 113
 114
 115 def convert_tree(in_treepath, out_treepath):
 116     """Traverse your thunderbird tree, converting each message file found into
 117     a claws-mail message directory.
 118     """
 119     for path,subs,files in os.walk(in_treepath):
 120         outpath = clean_path(path)
 121         if files:
 122             for f in [x for x in files if not x.endswith('.msf')]:
 123                 process_file(os.path.join(path,f),
 124                              os.path.join(out_treepath,outpath,f))
 125
 126 if __name__=='__main__':
 127     if len(sys.argv)<3:
 128         print (__doc__)
 129     else:
 130         if sys.version[0] == '2':
 131             importlib.reload(sys)
 132             sys.setdefaultencoding('utf8')
 133         convert_tree(sys.argv[1], sys.argv[2])