--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mailtb.py Fri Nov 06 05:15:51 2009 +0000
@@ -0,0 +1,147 @@
+#!/usr/bin/env python
+# -*- coding: UTF-8 -*-
+
+"""
+Sends information about uncaught exceptions per email.
+
+"""
+
+import sys
+import smtplib
+import traceback
+from os import environ as env
+from time import ctime, gmtime, localtime, strftime, time
+
+# make sure that the web server can write to this file
+mail_error_file = '/tmp/mailtb_error.log'
+mail_config = {# sender information
+ 'from_addr': '',
+ 'from_name': '',
+ # smtp auth information (if necessary, else leave blank)
+ 'auth_user': '',
+ 'auth_pass': '',
+ # recipient information
+ 'rcpt_addr': '',
+ 'rcpt_name': '',
+ # smtp server information
+ 'smtp_host': 'localhost',
+ 'smtp_port': 25, # 25 smtp, 587 submission, 465 ssmtp (obsolete)
+ 'smtp_tls': False, # True or False (use starttls on port 25/587)
+ # subject of the email
+ 'subject': 'Exception Notification'
+ }
+
+def log_mail_error(error, timestamp):
+ try:
+ prefix = strftime('%b %d %H:%M:%S', localtime(timestamp))
+ line = error.message if len(error.message) else error.args
+ logfile = open(mail_error_file, 'a')
+ logfile.write('%s %s: %s\n' % (prefix, error.__class__.__name__, line))
+ logfile.close()
+ except:
+ pass
+
+def send_header():
+ write = sys.stdout.write
+ #write('Content-Type: text/html; charset=utf-8\r\n')
+ write('Content-Type: application/xhtml+xml; charset=utf-8\r\n')
+ write('Status: 500 Internal Server Error\r\n\r\n')
+ sys.stdout.flush()
+
+def send_error_page():
+ send_header()
+ print """<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
+ "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de">
+ <head>
+ <title>Internal Server Error</title>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ </head>
+ <body>
+ <h1>Internal Server Error</h1>
+ <p>So wie es aussieht, ging bei der Bearbeitung Ihrer Anfrage etwas
+ schief.</p>
+ <p>Sofern Sie den Fehler verursacht haben, dürfen Sie jetzt ein schlechtes
+ Gewissen haben.<br />
+ Die Administration wird sich bei nächster Gelegenheit um das Problem
+ kümmern. Bitte haben Sie dafür etwas Verständnis.</p>
+ <h2>Error 500</h2>
+ <p>Sorry</p>
+ </body>
+</html>"""
+
+def send_mail(info):
+ global mail_config
+ mail_config['now'] = time()
+ mail_config['host'] = info['host'] if info['host'] != 'n/a' else 'localhost'
+ mail_config['date'] = strftime('%a, %d %b %Y %H:%M:%S +0000',
+ gmtime(mail_config['now']))
+ body = """Hi,
+
+an uncaught exception has occurred. The details are as follows:
+
+ Type: %(extype)s
+ Message: %(message)s
+
+Traceback (most recent call last):
+%(traceback)s
+
+Additional information:
+ Date: %(date)s
+ Request: %(method)s %(uri)s %(protocol)s
+ Referrer: %(referer)s
+ Client: %(addr)s/%(port)s
+ U-Agent: %(agent)s
+""" % info
+ header = """Date: %(date)s
+From: "%(from_name)s" <%(from_addr)s>
+To: "%(rcpt_name)s" <%(rcpt_addr)s>
+Subject: %(subject)s
+Message-ID: <%(now)f.%(now)X@mailtb.%(host)s>
+Auto-Submitted: auto-generated
+MIME-Version: 1.0
+Content-Type: text/plain; charset=utf-8
+Content-Transfer-Encoding: 8bit
+""" % mail_config
+
+ try:
+ if mail_config['smtp_port'] != 465:
+ smtp = smtplib.SMTP(mail_config['smtp_host'],
+ mail_config['smtp_port'])
+ if mail_config['smtp_tls']:
+ smtp.starttls()
+ else:
+ smtp = smtplib.SMTP_SSL(mail_config['smtp_host'],
+ mail_config['smtp_port'])
+ if len(mail_config['auth_user']) and len(mail_config['auth_pass']):
+ smtp.login(mail_config['auth_user'], mail_config['auth_pass'])
+ smtp.sendmail(mail_config['from_addr'], mail_config['rcpt_addr'],
+ '\n'.join((header, body)))
+ except Exception, e:
+ # try to log it (fire and forget)
+ log_mail_error(e, mail_config['now'])
+ finally:
+ smtp.quit()
+
+def mailtbhook(extype, exval, extb):
+ info = {}
+ if type(extype) is type:
+ info['extype'] = extype.__name__
+ else:
+ info['extype'] = str(extype).split("'")[1]
+ if hasattr(exval, 'message'):
+ info['message'] = exval.message if len(exval.message) else 'n/a'
+ else:
+ info['message'] = str(exval)
+ info['traceback'] = ''.join(['%s\n' % l for l in traceback.format_tb(extb)])
+
+ info['date'] = ctime()
+ for k in ('HTTP_HOST', 'HTTP_REFERER', 'HTTP_USER_AGENT', 'REMOTE_ADDR',
+ 'REMOTE_PORT', 'REQUEST_METHOD', 'REQUEST_URI', 'SERVER_PROTOCOL'):
+ info[k.split('_')[-1].lower()] = env[k] if env.has_key(k) else 'n/a'
+
+ send_mail(info)
+ send_error_page()
+
+def enable():
+ sys.excepthook = mailtbhook