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 - 2010 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 try:
  28     from hashlib import md5 as md5
  29 except ImportError:
  30     from md5 import new as md5
  31 import Wammu.ErrorLog
  32 import Wammu.ErrorMessage
  33 from Wammu.Locales import StrConv
  34
  35 # set later in Wammu.App to have correct parent here
  36 HANDLER_PARENT = None
  37
  38 ERROR_HISTORY = []
  39
  40 def Handler(errtype, value, tback):
  41     """User friendly error handling """
  42
  43     # prepare traceback text
  44     trace = traceback.extract_tb(tback)
  45     linetrace = traceback.format_list(trace)
  46     texttrace = ''.join(linetrace)
  47     textexc = ''.join(traceback.format_exception_only(errtype, value))
  48
  49     # debug log information
  50     logtext = ''
  51     outf, logname = Wammu.ErrorLog.SaveLog()
  52     if outf is not None:
  53         print 'Created debug log copy in %s for error reporting.' % logname
  54         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
  55
  56
  57     # detection of same errors
  58     tracehash = md5('%s,%s' % (textexc, texttrace)).hexdigest()
  59     if tracehash in ERROR_HISTORY:
  60         print 'Same error already detected, not showing dialog!'
  61         print texttrace
  62         print 'Exception: %s' % textexc
  63         return
  64     ERROR_HISTORY.append(tracehash)
  65
  66     # traceback id (md5 sum of last topmost traceback item inside Wammu - file(function):code)
  67     try:
  68         for trace_line in trace:
  69             if trace_line[0].rfind('Wammu') > -1:
  70                 lasttrace = trace_line
  71         traceidtext = '%s(%s):%s' % (
  72                 lasttrace[0][lasttrace[0].rfind('Wammu'):],
  73                 lasttrace[2],
  74                 lasttrace[3])
  75         traceid = md5(traceidtext).hexdigest()
  76         tracetext = '\n%s\n' % (
  77                 _('Before submiting please try searching for simmilar bugs on %s')
  78                 % ('http://bugs.cihar.com/view_all_set.php?f=3&type=1&search=%s\n'
  79                     % traceid))
  80     except:
  81         traceid = 'N/A'
  82         tracetext = ''
  83
  84     # unicode warning
  85     if errtype == UnicodeEncodeError or errtype == UnicodeDecodeError:
  86         unicodewarning =  ('\n%s\n' %
  87                 _('Unicode encoding error appeared, see question 1 in FAQ, how to solve this.'))
  88     else:
  89         unicodewarning = ''
  90
  91     # prepare message
  92     text = u"""%s
  93
  94 %s
  95 %s%s%s
  96 %s
  97 ------------------ Traceback ID -------------------
  98 %s
  99 -------------------- Traceback --------------------
 100 %s-------------------- Exception --------------------
 101 %s---------------------------------------------------
 102 """ % (
 103     _('Unhandled exception appeared.'),
 104     _('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/',
 105     logtext,
 106     tracetext,
 107     unicodewarning,
 108     Wammu.ErrorLog.GetSystemInfo(),
 109     traceid,
 110     StrConv(texttrace),
 111     StrConv(textexc))
 112
 113     # Include exception info in crash file
 114     if outf is not None:
 115         outf.write(text.encode('utf-8'))
 116         outf.close()
 117
 118     # display error
 119     try:
 120         Wammu.ErrorMessage.ErrorMessage(HANDLER_PARENT,
 121             _('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.'),
 122             _('Unhandled exception'),
 123             traceid = traceid, autolog = logname,
 124             exception = _('Traceback:\n%(traceback)s\nException: %(exception)s') % {
 125                     'traceback': StrConv(texttrace),
 126                     'exception' : StrConv(textexc) }).ShowModal()
 127     except:
 128         print text