Red Hat Bugzilla – Bug 484259
Setroubleshoot daemon fails with localized messages
Last modified: 2010-02-01 10:52:51 EST
Description of problem:
I've configured setroubleshootd to send mail to an administrative user. On a system with sv_SE.utf8 as system locale, no mails are sent. Instead, a python backtrace winds up in /var/log/messages.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Put "LANG=sv_SE.utf8" in /etc/sysconfig/i18n
2. Wait for an AVC message
I get a traceback in /var/log/messages. (I've added a few newlines for readability. Maybe bugzilla will add a few more.)
Feb 5 18:30:02 mimmi setroubleshoot: [avc.ERROR] Plugin Exception catchall_file
Traceback (most recent call last):
File "/usr/lib/python2.5/site-packages/setroubleshoot/analyze.py", line 159, in analyze_avc report_receiver.report_problem(report)
File "/usr/lib/python2.5/site-packages/setroubleshoot/server.py", line 150, in report_problem email_alert(siginfo, to_addrs)
File "/usr/lib/python2.5/site-packages/setroubleshoot/email_alert.py", line 64, in email_alert text = siginfo.format_text()
File "/usr/lib/python2.5/site-packages/setroubleshoot/signature.py", line 465, in format_text text += html_to_text('<h1>'+_("Detailed Description")+':</h1>'+description) UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 21: ordinal not in range(128)
A mail explaining the problem.
With some experimentation, I've figured out that it is the "description" variable that triggers the problem. If I remove that, the problem doesn't happen on that line. (A similar traceback happens a few lines further on for the "fix".
But character encodings in Python is a mystery to me, and I don't know how to avoid the problem. (Short of omitting the description and fix. But that has unfortunate side effects on the message sent, obviously.)
Göran, since you seem capable of editing the python code it would help us if you could get some diagnostic information for us. I need to know the type of the description variable. Could you please add this line in /usr/lib/python*/site-packages/setroubleshoot/signature.py in the format_text() function after the description variable is initialized.
log_sig.error("type(description) = %s", type(description))
This will cause the message to be written to syslog and /var/log/setroubleshoot/setroubleshootd.log
then recreate the problem and let us know what the type is. My guess is it will be <type 'unicode'> based on the traceback, but it should be <type 'str'>.
Also, by any chance did you edit /etc/setroubleshoot/setroubleshoot.cfg and modify the encoding?
Which version of Python are you running?
:-) I'm not afraid to hack around a little, even if I'm still learning the language when it comes to Python.
But the type of "description" is str as you say it should be:
Feb 6 23:20:01 mimmi setroubleshoot: [sig.ERROR] type(description) = <type 'str'>
Any other test I can do to help?
(In reply to comment #1)
> Also, by any chance did you edit /etc/setroubleshoot/setroubleshoot.cfg and
> modify the encoding?
Not that I can remember. And an "rpm -Vf" on it agrees with me that it is unchanged.
> Which version of Python are you running?
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The current version of setroubleshoot-server uses sedispatch called from auditd. In this configuration, the alert messages are not translated at all any more. So this problem doesn't show. One could probably argue if it is "fixed", or maybe only "hidden".
There is another bug filed about the translations in F12.
You refer to bug 539286 I assume? I tried the command you suggested there, and get a backtrace which looks quite similar to what I reported in comment 0.
22:03 mimmi$ sudo sealert -a /var/log/audit/audit.log
[sudo] password for root:
100% doneERROR: failed to read complete file, 2405705 bytes read out of total 2405455 bytes (/var/log/audit/audit.log)
found 11 alerts in /var/log/audit/audit.log
Traceback (most recent call last):
File "/usr/bin/sealert", line 799, in on_analyzer_state_change
File "/usr/bin/sealert", line 818, in output_results
File "/usr/lib64/python2.6/site-packages/setroubleshoot/signature.py", line 467, in format_text
description = self.description_adjusted_for_permissive()
File "/usr/lib64/python2.6/site-packages/setroubleshoot/signature.py", line 368, in description_adjusted_for_permissive
return _('<font color="0000FF">[%s]</font><p>%s') % (permissive_msg, self.solution.problem_description)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 21: ordinal not in range(128)
This was with setroubleshoot-server-2.2.46-1.fc12.x86_64.
Fixed in setroubleshoot-2.2.57-1.fc12
I just verified the sealert command no longer crashes with 2.2.60-1.fc12