From eefd06f1b88b8ecbb23a9013cd223b72ca85c20d Mon Sep 17 00:00:00 2001 From: Barry Warsaw Date: Sun, 25 Jan 2009 13:01:41 -0500 Subject: Push the source directory into a 'src' subdirectory so that zc.buildout works correctly regardless of how it's used. --- src/mailman/web/Cgi/wsgi_app.py | 286 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 286 insertions(+) create mode 100644 src/mailman/web/Cgi/wsgi_app.py (limited to 'src/mailman/web/Cgi/wsgi_app.py') diff --git a/src/mailman/web/Cgi/wsgi_app.py b/src/mailman/web/Cgi/wsgi_app.py new file mode 100644 index 000000000..b22dbf452 --- /dev/null +++ b/src/mailman/web/Cgi/wsgi_app.py @@ -0,0 +1,286 @@ +# Copyright (C) 2006-2009 by the Free Software Foundation, Inc. +# +# This file is part of GNU Mailman. +# +# GNU Mailman is free software: you can redistribute it and/or modify it under +# the terms of the GNU General Public License as published by the Free +# Software Foundation, either version 3 of the License, or (at your option) +# any later version. +# +# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +# more details. +# +# You should have received a copy of the GNU General Public License along with +# GNU Mailman. If not, see . + +import os +import re +import sys + +from cStringIO import StringIO +from email import message_from_string +from urlparse import urlparse + +from Mailman.configuration import config + +# XXX Should this be configurable in Defaults.py? +STEALTH_MODE = False +MOVED_RESPONSE = '302 Found' +# Above is for debugging convenience. We should use: +# MOVED_RESPONSE = '301 Moved Permanently' + + + +def websafe(s): + return s + + +SCRIPTS = ['admin', 'admindb', 'confirm', 'create', + 'edithtml', 'listinfo', 'options', 'private', + 'rmlist', 'roster', 'subscribe'] +ARCHVIEW = ['private'] + +SLASH = '/' +NL2 = '\n\n' +CRLF2 = '\r\n\r\n' + +dotonly = re.compile(r'^\.+$') + + + +# WSGI to CGI wrapper. Mostly copied from scripts/driver. +def mailman_app(environ, start_response): + """Wrapper to *.py CGI commands""" + global STEALTH_MODE, websafe + try: + try: + if not STEALTH_MODE: + from Mailman.Utils import websafe + except: + STEALTH_MODE = True + raise + + import logging + log = logging.getLogger('mailman.error') + + from Mailman import i18n + i18n.set_language(config.DEFAULT_SERVER_LANGUAGE) + + path = environ['PATH_INFO'] + paths = path.split(SLASH) + # sanity check for paths + spaths = [ i for i in paths[1:] if i and not dotonly.match(i) ] + if spaths and spaths != paths[1:]: + newpath = SLASH + SLASH.join(spaths) + start_response(MOVED_RESPONSE, [('Location', newpath)]) + return 'Location: ' + newpath + # find script name + for script in SCRIPTS: + if script in spaths: + # Get script position in spaths and break. + scrpos = spaths.index(script) + break + else: + # Can't find valid script. + start_response('404 Not Found', []) + return '404 Not Found' + # Compose CGI SCRIPT_NAME and PATH_INFO from WSGI path. + script_name = SLASH + SLASH.join(spaths[:scrpos+1]) + environ['SCRIPT_NAME'] = script_name + if len(paths) > scrpos+2: + path_info = SLASH + SLASH.join(paths[scrpos+2:]) + if script in ARCHVIEW \ + and path_info.count('/') in (1,2) \ + and not paths[-1].split('.')[-1] in ('html', 'txt', 'gz'): + # Add index.html if /private/listname or + # /private/listname/YYYYmm is requested. + newpath = script_name + path_info + '/index.html' + start_response(MOVED_RESPONSE, [('Location', newpath)]) + return 'Location: ' + newpath + environ['PATH_INFO'] = path_info + else: + environ['PATH_INFO'] = '' + # Reverse proxy environment. + if environ.has_key('HTTP_X_FORWARDED_HOST'): + environ['HTTP_HOST'] = environ['HTTP_X_FORWARDED_HOST'] + if environ.has_key('HTTP_X_FORWARDED_FOR'): + environ['REMOTE_HOST'] = environ['HTTP_X_FORWARDED_FOR'] + modname = 'Mailman.Cgi.' + script + # Clear previous cookie before setting new one. + os.environ['HTTP_COOKIE'] = '' + for k, v in environ.items(): + os.environ[k] = str(v) + # Prepare for redirection + save_stdin = sys.stdin + # CGI writes its output to sys.stdout, while wsgi app should + # return (list of) strings. + save_stdout = sys.stdout + save_stderr = sys.stderr + tmpstdout = StringIO() + tmpstderr = StringIO() + response = '' + try: + try: + sys.stdin = environ['wsgi.input'] + sys.stdout = tmpstdout + sys.stderr = tmpstderr + __import__(modname) + sys.modules[modname].main() + response = sys.stdout.getvalue() + finally: + sys.stdin = save_stdin + sys.stdout = save_stdout + sys.stderr = save_stderr + except SystemExit: + sys.stdout.write(tmpstdout.getvalue()) + if response: + try: + head, content = response.split(NL2, 1) + except ValueError: + head, content = response.split(CRLF2, 1) + m = message_from_string(head + CRLF2) + start_response('200 OK', m.items()) + return [content] + else: + # TBD: Error Code/Message + start_response('500 Server Error', []) + return '500 Internal Server Error' + except: + start_response('200 OK', [('Content-Type', 'text/html')]) + retstring = print_traceback(log) + retstring += print_environment(log) + return retstring + + + +# These functions are extracted and modified from scripts/driver. +# +# If possible, we print the error to two places. One will always be stdout +# and the other will be the log file if a log file was created. It is assumed +# that stdout is an HTML sink. +def print_traceback(log=None): + try: + import traceback + except ImportError: + traceback = None + try: + from mailman.version import VERSION + except ImportError: + VERSION = '<undetermined>' + + # Write to the log file first. + if log: + outfp = StringIO() + + print >> outfp, '@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@' + print >> outfp, '[----- Mailman Version: %s -----]' % VERSION + print >> outfp, '[----- Traceback ------]' + if traceback: + traceback.print_exc(file=outfp) + else: + print >> outfp, '[failed to import module traceback]' + print >> outfp, '[exc: %s, var: %s]' % sys.exc_info()[0:2] + # Don't use .exception() since that'll give us the exception twice. + # IWBNI we could print directly to the log's stream, or treat a log + # like an output stream. + log.error('%s', outfp.getvalue()) + + # return HTML sink. + htfp = StringIO() + print >> htfp, """\ +Bug in Mailman version %(VERSION)s +

Bug in Mailman version %(VERSION)s

+

We're sorry, we hit a bug!

+""" % locals() + if not STEALTH_MODE: + print >> htfp, '''

If you would like to help us identify the problem, +please email a copy of this page to the webmaster for this site with +a description of what happened. Thanks! + +

Traceback:

'''
+        exc_info = sys.exc_info()
+        if traceback:
+            for line in traceback.format_exception(*exc_info):
+                print >> htfp, websafe(line)
+        else:
+            print >> htfp, '[failed to import module traceback]'
+            print >> htfp, '[exc: %s, var: %s]' %\
+                            [websafe(x) for x in exc_info[0:2]]
+        print >> htfp, '\n\n
' + else: + print >> htfp, '''

Please inform the webmaster for this site of this +problem. Printing of traceback and other system information has been +explicitly inhibited, but the webmaster can find this information in the +Mailman error logs.''' + return htfp.getvalue() + + + +def print_environment(log=None): + try: + import os + except ImportError: + os = None + + if log: + outfp = StringIO() + + # Write some information about our Python executable to the log file. + print >> outfp, '[----- Python Information -----]' + print >> outfp, 'sys.version =', sys.version + print >> outfp, 'sys.executable =', sys.executable + print >> outfp, 'sys.prefix =', sys.prefix + print >> outfp, 'sys.exec_prefix =', sys.exec_prefix + print >> outfp, 'sys.path =', sys.exec_prefix + print >> outfp, 'sys.platform =', sys.platform + + # Write the same information to the HTML sink. + htfp = StringIO() + if not STEALTH_MODE: + print >> htfp, """\ +

Python information:

+ +

+ + + + + + + +
VariableValue
sys.version %s
sys.executable %s
sys.prefix %s
sys.exec_prefix %s
sys.path %s
sys.platform %s
""" % (sys.version, sys.executable, sys.prefix, + sys.exec_prefix, sys.path, sys.platform) + + # Write environment variables to the log file. + if log: + print >> outfp, '[----- Environment Variables -----]' + if os: + for k, v in os.environ.items(): + print >> outfp, '\t%s: %s' % (k, v) + else: + print >> outfp, '[failed to import module os]' + + # Write environment variables to the HTML sink. + if not STEALTH_MODE: + print >> htfp, """\ +

Environment variables:

+ +

+ +""" + if os: + for k, v in os.environ.items(): + print >> htfp, '' + print >> htfp, '
VariableValue
' + websafe(k) + \ + '' + websafe(v) + \ + '
' + else: + print >> htfp, '

[failed to import module os]' + + # Dump the log output + if log: + log.error('%s', outfp.getvalue()) + + return htfp.getvalue() -- cgit v1.2.3-70-g09d2