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#!/usr/bin/env python
from pprint import pprint
import re
from backtrace import Backtrace
class Bug(object):
def __init__(self, bz, id):
self.bz = bz
self.id = id
self._bug = bz.getbug(id)
def get_backtrace(self):
# Get the backtrace associated with this ABRT bug, as a Backtrace instance
a = self._get_backtrace_info()
if a is None:
raise NoBacktrace()
return Backtrace(self.bz.openattachment(a['id']).read())
def _get_backtrace_info(self):
for a in self._bug.attachments:
if a['filename'] == 'backtrace':
return a
def get_script(self):
'''Parse the ABRT report, extracting the script'''
# print repr(self._bug.longdescs[0]['body'])
for line in self._bug.longdescs[0]['body'].splitlines():
m = re.match('cmdline: (.+)', line)
if m:
for arg in m.group(1).split()[1:]:
if arg.startswith('/'):
return arg
class NoBacktrace(Exception):
pass
class UnsupportedComponent(Exception):
def __init__(self, path, url):
self.path = path
self.url = url
def describe_thread(bt, thread):
if len(bt._threads) == 1:
return "the program's single thread"
else:
return "thread #%i" % thread.index
def characterize_bt(bt, thread, script):
'''Get (newsubject, commentblurb)'''
bt_blurb = 'Looking at the backtrace, it looks like '
function = None
for (i, frame) in enumerate(thread.framelist):
# Get function name for deepest point in stack that has one:
if function is None or function == '??' or function == 'vtable':
function = frame.function
if frame.function == 'abort':
# print 'got abort!'
for j in range(i, len(thread.framelist)):
if thread.framelist[j].function == 'gdk_x_error':
return ('Fatal error in gdk_x_error running %s' % script,
(bt_blurb + 'a fatal error happened in frame %(f_idx)s of %(thread)s inside gdk_x_error.'
% dict(thread = describe_thread(bt, thread),
f_idx = j)
)
)
if thread.framelist[j].function == '__assert_fail':
return (('Assertion failure in %s inside %s running %s'
% (thread.framelist[j+1].function,
thread.framelist[j+2].function,
script)
),
(bt_blurb + 'an assertion failed inside frame %(f_idx)s of %(thread)s inside %(function)s.'
% dict(thread = describe_thread(bt, thread),
f_idx = j,
function = thread.framelist[j+1].function)
)
)
if frame.function in ['_XError', '__fortify_fail']:
function = frame.function
if frame.function in ['IA__g_assertion_message_expr']:
function = thread.framelist[i+1].function
if frame.function == 'Py_FatalError':
if thread.framelist[i+1].function == 'PyEval_RestoreThread':
return (('Incorrect thread usage in %s running %s'
% (thread.framelist[i+2].function,
script)
),
(bt_blurb + "an incorrect usage of Python's internal thread API was detected in %(function)s in frame #%(f_idx)s of %(thread)s"
% dict(function = thread.framelist[i+2].function,
thread = describe_thread(bt, thread),
f_idx = i+2)
)
)
if frame.info == '() from /usr/lib/flash-plugin/libflashplayer.so':
raise UnsupportedComponent('/usr/lib/flash-plugin/libflashplayer.so',
'https://fedoraproject.org/wiki/ForbiddenItems#Adobe_Flash_Player')
bt_blurb += 'the problem occurred in %s' % describe_thread(bt, thread)
if function:
bt_blurb += ' in %s' % function
if function:
summary = 'Fatal error in "%s" in %s' % (function, script)
else:
summary = 'Fatal error in %s' % script
return (summary, bt_blurb)
def what_provides_file(path):
#from subprocess import Popen, PIPE
#p = Popen(['yum', 'whatprovides', path], stdout=PIPE)
#(stdout, stderr) = p.communicate()
#print repr(stdout)
import yum
for pkg, path in yum.YumBase().searchPackageProvides([path]).iteritems():
#pprint(pkg.__dict__)
return pkg.name # this is the subpackage, not the srpm
class Change(object):
def __init__(self,
newsummary=None,
newcomponent=None,
comment=None):
self.comment = comment
self.newsummary = newsummary
self.newcomponent = newcomponent
def __str__(self):
result = ''
if self.newsummary:
result += '---- BEGIN SUMMARY ----\n'
result += self.newsummary
result += '\n---- END SUMMARY ----\n'
if self.newcomponent:
result += '---- BEGIN COMPONENT ----\n'
result += '"python" -> "%s"\n' % self.newcomponent # is there a way to do this via XML-RPC?
result += '---- END COMPONENT ----\n'
if self.comment:
result += '---- BEGIN COMMENT ----\n'
result += self.comment
result += '\n---- END COMMENT ----\n'
return result
def get_change(bz, bug_id):
bug = Bug(bz, bug_id)
script = bug.get_script()
# script = '/usr/bin/deluged'
if script:
pkg = what_provides_file(script)
else:
pkg = '(unknown)'
try:
bt = bug.get_backtrace()
(thread, frame) = bt.get_crash_site()
(newsummary, bt_blurb) = characterize_bt(bt, thread, script)
except NoBacktrace, e:
return Change(newsummary='Crash running %s' % script,
newcomponent = pkg,
comment=('''Thank you for the bug report.
Unfortunately, without a stack trace from the crash it is impossible to determine what caused the crash. Please see http://fedoraproject.org/wiki/StackTraces for more information about getting a useful stack trace with debugging symbols. Even if you cannot reproduce this crash at will, you can prepare your system now to produce a good stack trace the next time you experience the crash.
Thank you.
''')
)
except UnsupportedComponent, e:
return Change(newsummary='Crash in %s' % e.path,
comment=('''Thank you for the bug report.
Unfortunately the problem appears to be in %(path)s.
The Fedora Project only ships and maintains Free and Open Source software. Issues such as these are beyond the control of Fedora developers. See %(url)s for more information
You may find assistance in the Fedora community support forums or mailing list, or you might consider using a commercially supported product.'''
% dict(path=e.path,
url=e.url)
)
)
comment = '''Thank you for reporting this bug.
How reproducable is this problem? If you run the program from a terminal, is an error message printed?
What version of %(pkg)s do you have installed?
%(bt_blurb)s
Reassigning component from "python" to "%(pkg)s"
''' % dict(pkg=pkg,
bt_blurb = bt_blurb)
ch = Change(newsummary = newsummary,
newcomponent = pkg,
comment = comment
)
print ch
print '---- BEGIN THREAD ----'
for id in sorted(thread.frames.keys()):
f = thread.frames[id]
if f.address:
addr = hex(f.address)
else:
addr = None
print '#%i %s %s' % (id, addr, f.function)
print '---- END THREAD ----'
def main():
import bugzilla
bz=bugzilla.Bugzilla(url='https://bugzilla.redhat.com/xmlrpc.cgi')
import sys
bug_id = int(sys.argv[1])
print '---- CHANGES FOR BUG %i ----' % bug_id
print get_change(bz, bug_id)
main()
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