Wammu/Error.py

   1 # -*- coding: UTF-8 -*-
   2 # vim: expandtab sw=4 ts=4 sts=4:
   3 '''
   4 Wammu - Phone manager
   5 Unexpected exception handler
   6 '''
   7 __author__ = 'Michal Čihař'
   8 __email__ = 'michal@cihar.com'
   9 __license__ = '''
  10 Copyright © 2003 - 2008 Michal Čihař
  11
  12 This program is free software; you can redistribute it and/or modify it
  13 under the terms of the GNU General Public License version 2 as published by
  14 the Free Software Foundation.
  15
  16 This program is distributed in the hope that it will be useful, but WITHOUT
  17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  19 more details.
  20
  21 You should have received a copy of the GNU General Public License along with
  22 this program; if not, write to the Free Software Foundation, Inc.,
  23 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  24 '''
  25
  26 import traceback
  27 import md5
  28 import Wammu.ErrorLog
  29 import Wammu.ErrorMessage
  30 from Wammu.Locales import StrConv
  31
  32 # set later in Wammu.App to have correct parent here
  33 HANDLER_PARENT = None
  34
  35 ERROR_HISTORY = []
  36
  37 def Handler(errtype, value, tback):
  38     """User friendly error handling """
  39
  40     # prepare traceback text
  41     trace = traceback.extract_tb(tback)
  42     linetrace = traceback.format_list(trace)
  43     texttrace = ''.join(linetrace)
  44     textexc = ''.join(traceback.format_exception_only(errtype, value))
  45
  46     # debug log information
  47     logtext = ''
  48     outf, logname = Wammu.ErrorLog.SaveLog()
  49     if outf is not None:
  50         print 'Created debug log copy in %s for error reporting.' % logname
  51         logtext =  '\n%s\n' % _('Debug log was saved for phone communication, if this error appeared during communicating with phone, you are strongly encouraged to include it in bugreport. Debug log is saved in file %s.') % logname
  52
  53
  54     # detection of same errors
  55     tracehash = md5.new('%s,%s' % (textexc, texttrace)).hexdigest()
  56     if tracehash in ERROR_HISTORY:
  57         print 'Same error already detected, not showing dialog!'
  58         print texttrace
  59         print 'Exception: %s' % textexc
  60         return
  61     ERROR_HISTORY.append(tracehash)
  62
  63     # traceback id (md5 sum of last topmost traceback item inside Wammu - file(function):code)
  64     try:
  65         for trace_line in trace:
  66             if trace_line[0].rfind('Wammu') > -1:
  67                 lasttrace = trace_line
  68         traceidtext = '%s(%s):%s' % (
  69                 lasttrace[0][lasttrace[0].rfind('Wammu'):],
  70                 lasttrace[2],
  71                 lasttrace[3])
  72         traceid = md5.new(traceidtext).hexdigest()
  73         tracetext = '\n%s\n' % (
  74                 _('Before submiting please try searching for simmilar bugs on %s')
  75                 % ('http://bugs.cihar.com/view_all_set.php?f=3&type=1&search=%s\n'
  76                     % traceid))
  77     except:
  78         traceid = 'N/A'
  79         tracetext = ''
  80
  81     # unicode warning
  82     if errtype == UnicodeEncodeError or errtype == UnicodeDecodeError:
  83         unicodewarning =  ('\n%s\n' %
  84                 _('Unicode encoding error appeared, see question 1 in FAQ, how to solve this.'))
  85     else:
  86         unicodewarning = ''
  87
  88     # prepare message
  89     text = u"""%s
  90
  91 %s
  92 %s%s%s
  93 %s
  94 ------------------ Traceback ID -------------------
  95 %s
  96 -------------------- Traceback --------------------
  97 %s-------------------- Exception --------------------
  98 %s---------------------------------------------------
  99 """ % (
 100     _('Unhandled exception appeared.'),
 101     _('If you want to help improving this program, please submit following infomation and description how did it happen to %s. Please report in english, otherwise you will be most likely told to translate you report to english later.') % 'http://bugs.wammu.eu/',
 102     logtext,
 103     tracetext,
 104     unicodewarning,
 105     Wammu.ErrorLog.GetSystemInfo(),
 106     traceid,
 107     StrConv(texttrace),
 108     StrConv(textexc))
 109
 110     # Include exception info in crash file
 111     if outf is not None:
 112         outf.write(text.encode('utf-8'))
 113         outf.close()
 114
 115     # display error
 116     try:
 117         Wammu.ErrorMessage.ErrorMessage(HANDLER_PARENT,
 118             _('Unhandled exception appeared. If you want to help improving this program, please report this together with description how this situation has happened. Please report in english, otherwise you will be most likely told to translate you report to english later.'),
 119             _('Unhandled exception'),
 120             traceid = traceid, autolog = logname,
 121             exception = _('Traceback:\n%(traceback)s\nException: %(exception)s') % {
 122                     'traceback': StrConv(texttrace),
 123                     'exception' : StrConv(textexc) }).ShowModal()
 124     except:
 125         print text