1 """WWW request handler (also used in the stand-alone server).
2 """
3 __docformat__ = 'restructuredtext'
5 import base64, binascii, cgi, codecs, httplib, mimetypes, os
6 import quopri, random, re, rfc822, stat, sys, time, urllib, urlparse
7 import Cookie, socket, errno
8 from Cookie import CookieError, BaseCookie, SimpleCookie
9 from cStringIO import StringIO
11 from roundup import roundupdb, date, hyperdb, password
12 from roundup.cgi import templating, cgitb, TranslationService
13 from roundup.cgi.actions import *
14 from roundup.exceptions import *
15 from roundup.cgi.exceptions import *
16 from roundup.cgi.form_parser import FormParser
17 from roundup.mailer import Mailer, MessageSendError, encode_quopri
18 from roundup.cgi import accept_language
19 from roundup import xmlrpc
21 def initialiseSecurity(security):
22 '''Create some Permissions and Roles on the security object
24 This function is directly invoked by security.Security.__init__()
25 as a part of the Security object instantiation.
26 '''
27 p = security.addPermission(name="Web Access",
28 description="User may access the web interface")
29 security.addPermissionToRole('Admin', p)
31 # doing Role stuff through the web - make sure Admin can
32 # TODO: deprecate this and use a property-based control
33 p = security.addPermission(name="Web Roles",
34 description="User may manipulate user Roles through the web")
35 security.addPermissionToRole('Admin', p)
37 # used to clean messages passed through CGI variables - HTML-escape any tag
38 # that isn't <a href="">, <i>, <b> and <br> (including XHTML variants) so
39 # that people can't pass through nasties like <script>, <iframe>, ...
40 CLEAN_MESSAGE_RE = r'(<(/?(.*?)(\s*href="[^"]")?\s*/?)>)'
41 def clean_message(message, mc=re.compile(CLEAN_MESSAGE_RE, re.I)):
42 return mc.sub(clean_message_callback, message)
43 def clean_message_callback(match, ok={'a':1,'i':1,'b':1,'br':1}):
44 """ Strip all non <a>,<i>,<b> and <br> tags from a string
45 """
46 if ok.has_key(match.group(3).lower()):
47 return match.group(1)
48 return '<%s>'%match.group(2)
51 error_message = ''"""<html><head><title>An error has occurred</title></head>
52 <body><h1>An error has occurred</h1>
53 <p>A problem was encountered processing your request.
54 The tracker maintainers have been notified of the problem.</p>
55 </body></html>"""
58 class LiberalCookie(SimpleCookie):
59 """ Python's SimpleCookie throws an exception if the cookie uses invalid
60 syntax. Other applications on the same server may have done precisely
61 this, preventing roundup from working through no fault of roundup.
62 Numerous other python apps have run into the same problem:
64 trac: http://trac.edgewall.org/ticket/2256
65 mailman: http://bugs.python.org/issue472646
67 This particular implementation comes from trac's solution to the
68 problem. Unfortunately it requires some hackery in SimpleCookie's
69 internals to provide a more liberal __set method.
70 """
71 def load(self, rawdata, ignore_parse_errors=True):
72 if ignore_parse_errors:
73 self.bad_cookies = []
74 self._BaseCookie__set = self._loose_set
75 SimpleCookie.load(self, rawdata)
76 if ignore_parse_errors:
77 self._BaseCookie__set = self._strict_set
78 for key in self.bad_cookies:
79 del self[key]
81 _strict_set = BaseCookie._BaseCookie__set
83 def _loose_set(self, key, real_value, coded_value):
84 try:
85 self._strict_set(key, real_value, coded_value)
86 except CookieError:
87 self.bad_cookies.append(key)
88 dict.__setitem__(self, key, None)
91 class Session:
92 """
93 Needs DB to be already opened by client
95 Session attributes at instantiation:
97 - "client" - reference to client for add_cookie function
98 - "session_db" - session DB manager
99 - "cookie_name" - name of the cookie with session id
100 - "_sid" - session id for current user
101 - "_data" - session data cache
103 session = Session(client)
104 session.set(name=value)
105 value = session.get(name)
107 session.destroy() # delete current session
108 session.clean_up() # clean up session table
110 session.update(set_cookie=True, expire=3600*24*365)
111 # refresh session expiration time, setting persistent
112 # cookie if needed to last for 'expire' seconds
114 """
116 def __init__(self, client):
117 self._data = {}
118 self._sid = None
120 self.client = client
121 self.session_db = client.db.getSessionManager()
123 # parse cookies for session id
124 self.cookie_name = 'roundup_session_%s' % \
125 re.sub('[^a-zA-Z]', '', client.instance.config.TRACKER_NAME)
126 cookies = LiberalCookie(client.env.get('HTTP_COOKIE', ''))
127 if self.cookie_name in cookies:
128 if not self.session_db.exists(cookies[self.cookie_name].value):
129 self._sid = None
130 # remove old cookie
131 self.client.add_cookie(self.cookie_name, None)
132 else:
133 self._sid = cookies[self.cookie_name].value
134 self._data = self.session_db.getall(self._sid)
136 def _gen_sid(self):
137 """ generate a unique session key """
138 while 1:
139 s = '%s%s'%(time.time(), random.random())
140 s = binascii.b2a_base64(s).strip()
141 if not self.session_db.exists(s):
142 break
144 # clean up the base64
145 if s[-1] == '=':
146 if s[-2] == '=':
147 s = s[:-2]
148 else:
149 s = s[:-1]
150 return s
152 def clean_up(self):
153 """Remove expired sessions"""
154 self.session_db.clean()
156 def destroy(self):
157 self.client.add_cookie(self.cookie_name, None)
158 self._data = {}
159 self.session_db.destroy(self._sid)
160 self.client.db.commit()
162 def get(self, name, default=None):
163 return self._data.get(name, default)
165 def set(self, **kwargs):
166 self._data.update(kwargs)
167 if not self._sid:
168 self._sid = self._gen_sid()
169 self.session_db.set(self._sid, **self._data)
170 # add session cookie
171 self.update(set_cookie=True)
173 # XXX added when patching 1.4.4 for backward compatibility
174 # XXX remove
175 self.client.session = self._sid
176 else:
177 self.session_db.set(self._sid, **self._data)
178 self.client.db.commit()
180 def update(self, set_cookie=False, expire=None):
181 """ update timestamp in db to avoid expiration
183 if 'set_cookie' is True, set cookie with 'expire' seconds lifetime
184 if 'expire' is None - session will be closed with the browser
186 XXX the session can be purged within a week even if a cookie
187 lifetime is longer
188 """
189 self.session_db.updateTimestamp(self._sid)
190 self.client.db.commit()
192 if set_cookie:
193 self.client.add_cookie(self.cookie_name, self._sid, expire=expire)
197 class Client:
198 """Instantiate to handle one CGI request.
200 See inner_main for request processing.
202 Client attributes at instantiation:
204 - "path" is the PATH_INFO inside the instance (with no leading '/')
205 - "base" is the base URL for the instance
206 - "form" is the cgi form, an instance of FieldStorage from the standard
207 cgi module
208 - "additional_headers" is a dictionary of additional HTTP headers that
209 should be sent to the client
210 - "response_code" is the HTTP response code to send to the client
211 - "translator" is TranslationService instance
213 During the processing of a request, the following attributes are used:
215 - "db"
216 - "error_message" holds a list of error messages
217 - "ok_message" holds a list of OK messages
218 - "session" is deprecated in favor of session_api (XXX remove)
219 - "session_api" is the interface to store data in session
220 - "user" is the current user's name
221 - "userid" is the current user's id
222 - "template" is the current :template context
223 - "classname" is the current class context name
224 - "nodeid" is the current context item id
226 User Identification:
227 Users that are absent in session data are anonymous and are logged
228 in as that user. This typically gives them all Permissions assigned to the
229 Anonymous Role.
231 Every user is assigned a session. "session_api" is the interface to work
232 with session data.
234 Special form variables:
235 Note that in various places throughout this code, special form
236 variables of the form :<name> are used. The colon (":") part may
237 actually be one of either ":" or "@".
238 """
240 # charset used for data storage and form templates
241 # Note: must be in lower case for comparisons!
242 # XXX take this from instance.config?
243 STORAGE_CHARSET = 'utf-8'
245 #
246 # special form variables
247 #
248 FV_TEMPLATE = re.compile(r'[@:]template')
249 FV_OK_MESSAGE = re.compile(r'[@:]ok_message')
250 FV_ERROR_MESSAGE = re.compile(r'[@:]error_message')
252 # Note: index page stuff doesn't appear here:
253 # columns, sort, sortdir, filter, group, groupdir, search_text,
254 # pagesize, startwith
256 # list of network error codes that shouldn't be reported to tracker admin
257 # (error descriptions from FreeBSD intro(2))
258 IGNORE_NET_ERRORS = (
259 # A write on a pipe, socket or FIFO for which there is
260 # no process to read the data.
261 errno.EPIPE,
262 # A connection was forcibly closed by a peer.
263 # This normally results from a loss of the connection
264 # on the remote socket due to a timeout or a reboot.
265 errno.ECONNRESET,
266 # Software caused connection abort. A connection abort
267 # was caused internal to your host machine.
268 errno.ECONNABORTED,
269 # A connect or send request failed because the connected party
270 # did not properly respond after a period of time.
271 errno.ETIMEDOUT,
272 )
274 def __init__(self, instance, request, env, form=None, translator=None):
275 # re-seed the random number generator
276 random.seed()
277 self.start = time.time()
278 self.instance = instance
279 self.request = request
280 self.env = env
281 self.setTranslator(translator)
282 self.mailer = Mailer(instance.config)
284 # save off the path
285 self.path = env['PATH_INFO']
287 # this is the base URL for this tracker
288 self.base = self.instance.config.TRACKER_WEB
290 # check the tracker_we setting
291 if not self.base.endswith('/'):
292 self.base = self.base + '/'
294 # this is the "cookie path" for this tracker (ie. the path part of
295 # the "base" url)
296 self.cookie_path = urlparse.urlparse(self.base)[2]
297 # cookies to set in http responce
298 # {(path, name): (value, expire)}
299 self._cookies = {}
301 # see if we need to re-parse the environment for the form (eg Zope)
302 if form is None:
303 self.form = cgi.FieldStorage(environ=env)
304 else:
305 self.form = form
307 # turn debugging on/off
308 try:
309 self.debug = int(env.get("ROUNDUP_DEBUG", 0))
310 except ValueError:
311 # someone gave us a non-int debug level, turn it off
312 self.debug = 0
314 # flag to indicate that the HTTP headers have been sent
315 self.headers_done = 0
317 # additional headers to send with the request - must be registered
318 # before the first write
319 self.additional_headers = {}
320 self.response_code = 200
322 # default character set
323 self.charset = self.STORAGE_CHARSET
325 # parse cookies (used for charset lookups)
326 # use our own LiberalCookie to handle bad apps on the same
327 # server that have set cookies that are out of spec
328 self.cookie = LiberalCookie(self.env.get('HTTP_COOKIE', ''))
330 self.user = None
331 self.userid = None
332 self.nodeid = None
333 self.classname = None
334 self.template = None
336 def setTranslator(self, translator=None):
337 """Replace the translation engine
339 'translator'
340 is TranslationService instance.
341 It must define methods 'translate' (TAL-compatible i18n),
342 'gettext' and 'ngettext' (gettext-compatible i18n).
344 If omitted, create default TranslationService.
345 """
346 if translator is None:
347 translator = TranslationService.get_translation(
348 language=self.instance.config["TRACKER_LANGUAGE"],
349 tracker_home=self.instance.config["TRACKER_HOME"])
350 self.translator = translator
351 self._ = self.gettext = translator.gettext
352 self.ngettext = translator.ngettext
354 def main(self):
355 """ Wrap the real main in a try/finally so we always close off the db.
356 """
357 try:
358 if self.env.get('CONTENT_TYPE') == 'text/xml':
359 self.handle_xmlrpc()
360 else:
361 self.inner_main()
362 finally:
363 if hasattr(self, 'db'):
364 self.db.close()
367 def handle_xmlrpc(self):
369 # Pull the raw XML out of the form. The "value" attribute
370 # will be the raw content of the POST request.
371 assert self.form.file
372 input = self.form.value
373 # So that the rest of Roundup can query the form in the
374 # usual way, we create an empty list of fields.
375 self.form.list = []
377 # Set the charset and language, since other parts of
378 # Roundup may depend upon that.
379 self.determine_charset()
380 self.determine_language()
381 # Open the database as the correct user.
382 self.determine_user()
383 self.check_anonymous_access()
385 # Call the appropriate XML-RPC method.
386 handler = xmlrpc.RoundupDispatcher(self.db,
387 self.instance.actions,
388 self.translator,
389 allow_none=True)
390 output = handler.dispatch(input)
392 self.setHeader("Content-Type", "text/xml")
393 self.setHeader("Content-Length", str(len(output)))
394 self.write(output)
396 def inner_main(self):
397 """Process a request.
399 The most common requests are handled like so:
401 1. look for charset and language preferences, set up user locale
402 see determine_charset, determine_language
403 2. figure out who we are, defaulting to the "anonymous" user
404 see determine_user
405 3. figure out what the request is for - the context
406 see determine_context
407 4. handle any requested action (item edit, search, ...)
408 see handle_action
409 5. render a template, resulting in HTML output
411 In some situations, exceptions occur:
413 - HTTP Redirect (generally raised by an action)
414 - SendFile (generally raised by determine_context)
415 serve up a FileClass "content" property
416 - SendStaticFile (generally raised by determine_context)
417 serve up a file from the tracker "html" directory
418 - Unauthorised (generally raised by an action)
419 the action is cancelled, the request is rendered and an error
420 message is displayed indicating that permission was not
421 granted for the action to take place
422 - templating.Unauthorised (templating action not permitted)
423 raised by an attempted rendering of a template when the user
424 doesn't have permission
425 - NotFound (raised wherever it needs to be)
426 percolates up to the CGI interface that called the client
427 """
428 self.ok_message = []
429 self.error_message = []
430 try:
431 self.determine_charset()
432 self.determine_language()
434 try:
435 # make sure we're identified (even anonymously)
436 self.determine_user()
438 # figure out the context and desired content template
439 self.determine_context()
441 # if we've made it this far the context is to a bit of
442 # Roundup's real web interface (not a file being served up)
443 # so do the Anonymous Web Acess check now
444 self.check_anonymous_access()
446 # possibly handle a form submit action (may change self.classname
447 # and self.template, and may also append error/ok_messages)
448 html = self.handle_action()
450 if html:
451 self.write_html(html)
452 return
454 # now render the page
455 # we don't want clients caching our dynamic pages
456 self.additional_headers['Cache-Control'] = 'no-cache'
457 # Pragma: no-cache makes Mozilla and its ilk
458 # double-load all pages!!
459 # self.additional_headers['Pragma'] = 'no-cache'
461 # pages with messages added expire right now
462 # simple views may be cached for a small amount of time
463 # TODO? make page expire time configurable
464 # <rj> always expire pages, as IE just doesn't seem to do the
465 # right thing here :(
466 date = time.time() - 1
467 #if self.error_message or self.ok_message:
468 # date = time.time() - 1
469 #else:
470 # date = time.time() + 5
471 self.additional_headers['Expires'] = rfc822.formatdate(date)
473 # render the content
474 self.write_html(self.renderContext())
475 except SendFile, designator:
476 # The call to serve_file may result in an Unauthorised
477 # exception or a NotModified exception. Those
478 # exceptions will be handled by the outermost set of
479 # exception handlers.
480 self.serve_file(designator)
481 except SendStaticFile, file:
482 self.serve_static_file(str(file))
483 except IOError:
484 # IOErrors here are due to the client disconnecting before
485 # recieving the reply.
486 pass
488 except SeriousError, message:
489 self.write_html(str(message))
490 except Redirect, url:
491 # let's redirect - if the url isn't None, then we need to do
492 # the headers, otherwise the headers have been set before the
493 # exception was raised
494 if url:
495 self.additional_headers['Location'] = str(url)
496 self.response_code = 302
497 self.write_html('Redirecting to <a href="%s">%s</a>'%(url, url))
498 except LoginError, message:
499 # The user tried to log in, but did not provide a valid
500 # username and password. If we support HTTP
501 # authorization, send back a response that will cause the
502 # browser to prompt the user again.
503 if self.instance.config.WEB_HTTP_AUTH:
504 self.response_code = httplib.UNAUTHORIZED
505 realm = self.instance.config.TRACKER_NAME
506 self.setHeader("WWW-Authenticate",
507 "Basic realm=\"%s\"" % realm)
508 else:
509 self.response_code = httplib.FORBIDDEN
510 self.renderFrontPage(message)
511 except Unauthorised, message:
512 # users may always see the front page
513 self.response_code = 403
514 self.renderFrontPage(message)
515 except NotModified:
516 # send the 304 response
517 self.response_code = 304
518 self.header()
519 except NotFound, e:
520 self.response_code = 404
521 self.template = '404'
522 try:
523 cl = self.db.getclass(self.classname)
524 self.write_html(self.renderContext())
525 except KeyError:
526 # we can't map the URL to a class we know about
527 # reraise the NotFound and let roundup_server
528 # handle it
529 raise NotFound, e
530 except FormError, e:
531 self.error_message.append(self._('Form Error: ') + str(e))
532 self.write_html(self.renderContext())
533 except:
534 # Something has gone badly wrong. Therefore, we should
535 # make sure that the response code indicates failure.
536 if self.response_code == httplib.OK:
537 self.response_code = httplib.INTERNAL_SERVER_ERROR
538 # Help the administrator work out what went wrong.
539 html = ("<h1>Traceback</h1>"
540 + cgitb.html(i18n=self.translator)
541 + ("<h1>Environment Variables</h1><table>%s</table>"
542 % cgitb.niceDict("", self.env)))
543 if not self.instance.config.WEB_DEBUG:
544 exc_info = sys.exc_info()
545 subject = "Error: %s" % exc_info[1]
546 self.send_html_to_admin(subject, html)
547 self.write_html(self._(error_message))
548 else:
549 self.write_html(html)
551 def clean_sessions(self):
552 """Deprecated
553 XXX remove
554 """
555 self.clean_up()
557 def clean_up(self):
558 """Remove expired sessions and One Time Keys.
560 Do it only once an hour.
561 """
562 hour = 60*60
563 now = time.time()
565 # XXX: hack - use OTK table to store last_clean time information
566 # 'last_clean' string is used instead of otk key
567 last_clean = self.db.getOTKManager().get('last_clean', 'last_use', 0)
568 if now - last_clean < hour:
569 return
571 self.session_api.clean_up()
572 self.db.getOTKManager().clean()
573 self.db.getOTKManager().set('last_clean', last_use=now)
574 self.db.commit(fail_ok=True)
576 def determine_charset(self):
577 """Look for client charset in the form parameters or browser cookie.
579 If no charset requested by client, use storage charset (utf-8).
581 If the charset is found, and differs from the storage charset,
582 recode all form fields of type 'text/plain'
583 """
584 # look for client charset
585 charset_parameter = 0
586 if self.form.has_key('@charset'):
587 charset = self.form['@charset'].value
588 if charset.lower() == "none":
589 charset = ""
590 charset_parameter = 1
591 elif self.cookie.has_key('roundup_charset'):
592 charset = self.cookie['roundup_charset'].value
593 else:
594 charset = None
595 if charset:
596 # make sure the charset is recognized
597 try:
598 codecs.lookup(charset)
599 except LookupError:
600 self.error_message.append(self._('Unrecognized charset: %r')
601 % charset)
602 charset_parameter = 0
603 else:
604 self.charset = charset.lower()
605 # If we've got a character set in request parameters,
606 # set the browser cookie to keep the preference.
607 # This is done after codecs.lookup to make sure
608 # that we aren't keeping a wrong value.
609 if charset_parameter:
610 self.add_cookie('roundup_charset', charset)
612 # if client charset is different from the storage charset,
613 # recode form fields
614 # XXX this requires FieldStorage from Python library.
615 # mod_python FieldStorage is not supported!
616 if self.charset != self.STORAGE_CHARSET:
617 decoder = codecs.getdecoder(self.charset)
618 encoder = codecs.getencoder(self.STORAGE_CHARSET)
619 re_charref = re.compile('&#([0-9]+|x[0-9a-f]+);', re.IGNORECASE)
620 def _decode_charref(matchobj):
621 num = matchobj.group(1)
622 if num[0].lower() == 'x':
623 uc = int(num[1:], 16)
624 else:
625 uc = int(num)
626 return unichr(uc)
628 for field_name in self.form.keys():
629 field = self.form[field_name]
630 if (field.type == 'text/plain') and not field.filename:
631 try:
632 value = decoder(field.value)[0]
633 except UnicodeError:
634 continue
635 value = re_charref.sub(_decode_charref, value)
636 field.value = encoder(value)[0]
638 def determine_language(self):
639 """Determine the language"""
640 # look for language parameter
641 # then for language cookie
642 # last for the Accept-Language header
643 if self.form.has_key("@language"):
644 language = self.form["@language"].value
645 if language.lower() == "none":
646 language = ""
647 self.add_cookie("roundup_language", language)
648 elif self.cookie.has_key("roundup_language"):
649 language = self.cookie["roundup_language"].value
650 elif self.instance.config["WEB_USE_BROWSER_LANGUAGE"]:
651 hal = self.env.get('HTTP_ACCEPT_LANGUAGE')
652 language = accept_language.parse(hal)
653 else:
654 language = ""
656 self.language = language
657 if language:
658 self.setTranslator(TranslationService.get_translation(
659 language,
660 tracker_home=self.instance.config["TRACKER_HOME"]))
662 def determine_user(self):
663 """Determine who the user is"""
664 self.opendb('admin')
666 # get session data from db
667 # XXX: rename
668 self.session_api = Session(self)
670 # take the opportunity to cleanup expired sessions and otks
671 self.clean_up()
673 user = None
674 # first up, try http authorization if enabled
675 if self.instance.config['WEB_HTTP_AUTH']:
676 if self.env.has_key('REMOTE_USER'):
677 # we have external auth (e.g. by Apache)
678 user = self.env['REMOTE_USER']
679 elif self.env.get('HTTP_AUTHORIZATION', ''):
680 # try handling Basic Auth ourselves
681 auth = self.env['HTTP_AUTHORIZATION']
682 scheme, challenge = auth.split(' ', 1)
683 if scheme.lower() == 'basic':
684 try:
685 decoded = base64.decodestring(challenge)
686 except TypeError:
687 # invalid challenge
688 pass
689 username, password = decoded.split(':')
690 try:
691 login = self.get_action_class('login')(self)
692 login.verifyLogin(username, password)
693 except LoginError, err:
694 self.make_user_anonymous()
695 raise
696 user = username
698 # if user was not set by http authorization, try session lookup
699 if not user:
700 user = self.session_api.get('user')
701 if user:
702 # update session lifetime datestamp
703 self.session_api.update()
705 # if no user name set by http authorization or session lookup
706 # the user is anonymous
707 if not user:
708 user = 'anonymous'
710 # sanity check on the user still being valid,
711 # getting the userid at the same time
712 try:
713 self.userid = self.db.user.lookup(user)
714 except (KeyError, TypeError):
715 user = 'anonymous'
717 # make sure the anonymous user is valid if we're using it
718 if user == 'anonymous':
719 self.make_user_anonymous()
720 else:
721 self.user = user
723 # reopen the database as the correct user
724 self.opendb(self.user)
726 def check_anonymous_access(self):
727 """Check that the Anonymous user is actually allowed to use the web
728 interface and short-circuit all further processing if they're not.
729 """
730 # allow Anonymous to use the "login" and "register" actions (noting
731 # that "register" has its own "Register" permission check)
732 if self.form.has_key(':action'):
733 action = self.form[':action'].value.lower()
734 elif self.form.has_key('@action'):
735 action = self.form['@action'].value.lower()
736 else:
737 action = None
738 if action in ('login', 'register'):
739 return
741 # otherwise for everything else
742 if self.user == 'anonymous':
743 if not self.db.security.hasPermission('Web Access', self.userid):
744 raise Unauthorised, self._("Anonymous users are not "
745 "allowed to use the web interface")
747 def opendb(self, username):
748 """Open the database and set the current user.
750 Opens a database once. On subsequent calls only the user is set on
751 the database object the instance.optimize is set. If we are in
752 "Development Mode" (cf. roundup_server) then the database is always
753 re-opened.
754 """
755 # don't do anything if the db is open and the user has not changed
756 if hasattr(self, 'db') and self.db.isCurrentUser(username):
757 return
759 # open the database or only set the user
760 if not hasattr(self, 'db'):
761 self.db = self.instance.open(username)
762 else:
763 if self.instance.optimize:
764 self.db.setCurrentUser(username)
765 else:
766 self.db.close()
767 self.db = self.instance.open(username)
768 # The old session API refers to the closed database;
769 # we can no longer use it.
770 self.session_api = Session(self)
773 def determine_context(self, dre=re.compile(r'([^\d]+)0*(\d+)')):
774 """Determine the context of this page from the URL:
776 The URL path after the instance identifier is examined. The path
777 is generally only one entry long.
779 - if there is no path, then we are in the "home" context.
780 - if the path is "_file", then the additional path entry
781 specifies the filename of a static file we're to serve up
782 from the instance "html" directory. Raises a SendStaticFile
783 exception.(*)
784 - if there is something in the path (eg "issue"), it identifies
785 the tracker class we're to display.
786 - if the path is an item designator (eg "issue123"), then we're
787 to display a specific item.
788 - if the path starts with an item designator and is longer than
789 one entry, then we're assumed to be handling an item of a
790 FileClass, and the extra path information gives the filename
791 that the client is going to label the download with (ie
792 "file123/image.png" is nicer to download than "file123"). This
793 raises a SendFile exception.(*)
795 Both of the "*" types of contexts stop before we bother to
796 determine the template we're going to use. That's because they
797 don't actually use templates.
799 The template used is specified by the :template CGI variable,
800 which defaults to:
802 - only classname suplied: "index"
803 - full item designator supplied: "item"
805 We set:
807 self.classname - the class to display, can be None
809 self.template - the template to render the current context with
811 self.nodeid - the nodeid of the class we're displaying
812 """
813 # default the optional variables
814 self.classname = None
815 self.nodeid = None
817 # see if a template or messages are specified
818 template_override = ok_message = error_message = None
819 for key in self.form.keys():
820 if self.FV_TEMPLATE.match(key):
821 template_override = self.form[key].value
822 elif self.FV_OK_MESSAGE.match(key):
823 ok_message = self.form[key].value
824 ok_message = clean_message(ok_message)
825 elif self.FV_ERROR_MESSAGE.match(key):
826 error_message = self.form[key].value
827 error_message = clean_message(error_message)
829 # see if we were passed in a message
830 if ok_message:
831 self.ok_message.append(ok_message)
832 if error_message:
833 self.error_message.append(error_message)
835 # determine the classname and possibly nodeid
836 path = self.path.split('/')
837 if not path or path[0] in ('', 'home', 'index'):
838 if template_override is not None:
839 self.template = template_override
840 else:
841 self.template = ''
842 return
843 elif path[0] in ('_file', '@@file'):
844 raise SendStaticFile, os.path.join(*path[1:])
845 else:
846 self.classname = path[0]
847 if len(path) > 1:
848 # send the file identified by the designator in path[0]
849 raise SendFile, path[0]
851 # see if we got a designator
852 m = dre.match(self.classname)
853 if m:
854 self.classname = m.group(1)
855 self.nodeid = m.group(2)
856 try:
857 klass = self.db.getclass(self.classname)
858 except KeyError:
859 raise NotFound, '%s/%s'%(self.classname, self.nodeid)
860 if not klass.hasnode(self.nodeid):
861 raise NotFound, '%s/%s'%(self.classname, self.nodeid)
862 # with a designator, we default to item view
863 self.template = 'item'
864 else:
865 # with only a class, we default to index view
866 self.template = 'index'
868 # make sure the classname is valid
869 try:
870 self.db.getclass(self.classname)
871 except KeyError:
872 raise NotFound, self.classname
874 # see if we have a template override
875 if template_override is not None:
876 self.template = template_override
878 def serve_file(self, designator, dre=re.compile(r'([^\d]+)(\d+)')):
879 """ Serve the file from the content property of the designated item.
880 """
881 m = dre.match(str(designator))
882 if not m:
883 raise NotFound, str(designator)
884 classname, nodeid = m.group(1), m.group(2)
886 try:
887 klass = self.db.getclass(classname)
888 except KeyError:
889 # The classname was not valid.
890 raise NotFound, str(designator)
892 # perform the Anonymous user access check
893 self.check_anonymous_access()
895 # make sure we have the appropriate properties
896 props = klass.getprops()
897 if not props.has_key('type'):
898 raise NotFound, designator
899 if not props.has_key('content'):
900 raise NotFound, designator
902 # make sure we have permission
903 if not self.db.security.hasPermission('View', self.userid,
904 classname, 'content', nodeid):
905 raise Unauthorised, self._("You are not allowed to view "
906 "this file.")
908 mime_type = klass.get(nodeid, 'type')
909 # Can happen for msg class:
910 if not mime_type:
911 mime_type = 'text/plain'
913 # if the mime_type is HTML-ish then make sure we're allowed to serve up
914 # HTML-ish content
915 if mime_type in ('text/html', 'text/x-html'):
916 if not self.instance.config['WEB_ALLOW_HTML_FILE']:
917 # do NOT serve the content up as HTML
918 mime_type = 'application/octet-stream'
920 # If this object is a file (i.e., an instance of FileClass),
921 # see if we can find it in the filesystem. If so, we may be
922 # able to use the more-efficient request.sendfile method of
923 # sending the file. If not, just get the "content" property
924 # in the usual way, and use that.
925 content = None
926 filename = None
927 if isinstance(klass, hyperdb.FileClass):
928 try:
929 filename = self.db.filename(classname, nodeid)
930 except AttributeError:
931 # The database doesn't store files in the filesystem
932 # and therefore doesn't provide the "filename" method.
933 pass
934 except IOError:
935 # The file does not exist.
936 pass
937 if not filename:
938 content = klass.get(nodeid, 'content')
940 lmt = klass.get(nodeid, 'activity').timestamp()
942 self._serve_file(lmt, mime_type, content, filename)
944 def serve_static_file(self, file):
945 """ Serve up the file named from the templates dir
946 """
947 # figure the filename - try STATIC_FILES, then TEMPLATES dir
948 for dir_option in ('STATIC_FILES', 'TEMPLATES'):
949 prefix = self.instance.config[dir_option]
950 if not prefix:
951 continue
952 # ensure the load doesn't try to poke outside
953 # of the static files directory
954 prefix = os.path.normpath(prefix)
955 filename = os.path.normpath(os.path.join(prefix, file))
956 if os.path.isfile(filename) and filename.startswith(prefix):
957 break
958 else:
959 raise NotFound, file
961 # last-modified time
962 lmt = os.stat(filename)[stat.ST_MTIME]
964 # detemine meta-type
965 file = str(file)
966 mime_type = mimetypes.guess_type(file)[0]
967 if not mime_type:
968 if file.endswith('.css'):
969 mime_type = 'text/css'
970 else:
971 mime_type = 'text/plain'
973 self._serve_file(lmt, mime_type, '', filename)
975 def _serve_file(self, lmt, mime_type, content=None, filename=None):
976 """ guts of serve_file() and serve_static_file()
977 """
979 # spit out headers
980 self.additional_headers['Content-Type'] = mime_type
981 self.additional_headers['Last-Modified'] = rfc822.formatdate(lmt)
983 ims = None
984 # see if there's an if-modified-since...
985 # XXX see which interfaces set this
986 #if hasattr(self.request, 'headers'):
987 #ims = self.request.headers.getheader('if-modified-since')
988 if self.env.has_key('HTTP_IF_MODIFIED_SINCE'):
989 # cgi will put the header in the env var
990 ims = self.env['HTTP_IF_MODIFIED_SINCE']
991 if ims:
992 ims = rfc822.parsedate(ims)[:6]
993 lmtt = time.gmtime(lmt)[:6]
994 if lmtt <= ims:
995 raise NotModified
997 if filename:
998 self.write_file(filename)
999 else:
1000 self.additional_headers['Content-Length'] = str(len(content))
1001 self.write(content)
1003 def send_html_to_admin(self, subject, content):
1005 to = [self.mailer.config.ADMIN_EMAIL]
1006 message = self.mailer.get_standard_message(to, subject)
1007 # delete existing content-type headers
1008 del message['Content-type']
1009 message['Content-type'] = 'text/html; charset=utf-8'
1010 message.set_payload(content)
1011 encode_quopri(message)
1012 self.mailer.smtp_send(to, str(message))
1014 def renderFrontPage(self, message):
1015 """Return the front page of the tracker."""
1017 self.classname = self.nodeid = None
1018 self.template = ''
1019 self.error_message.append(message)
1020 self.write_html(self.renderContext())
1022 def renderContext(self):
1023 """ Return a PageTemplate for the named page
1024 """
1025 name = self.classname
1026 extension = self.template
1028 # catch errors so we can handle PT rendering errors more nicely
1029 args = {
1030 'ok_message': self.ok_message,
1031 'error_message': self.error_message
1032 }
1033 try:
1034 pt = self.instance.templates.get(name, extension)
1035 # let the template render figure stuff out
1036 result = pt.render(self, None, None, **args)
1037 self.additional_headers['Content-Type'] = pt.content_type
1038 if self.env.get('CGI_SHOW_TIMING', ''):
1039 if self.env['CGI_SHOW_TIMING'].upper() == 'COMMENT':
1040 timings = {'starttag': '<!-- ', 'endtag': ' -->'}
1041 else:
1042 timings = {'starttag': '<p>', 'endtag': '</p>'}
1043 timings['seconds'] = time.time()-self.start
1044 s = self._('%(starttag)sTime elapsed: %(seconds)fs%(endtag)s\n'
1045 ) % timings
1046 if hasattr(self.db, 'stats'):
1047 timings.update(self.db.stats)
1048 s += self._("%(starttag)sCache hits: %(cache_hits)d,"
1049 " misses %(cache_misses)d."
1050 " Loading items: %(get_items)f secs."
1051 " Filtering: %(filtering)f secs."
1052 "%(endtag)s\n") % timings
1053 s += '</body>'
1054 result = result.replace('</body>', s)
1055 return result
1056 except templating.NoTemplate, message:
1057 return '<strong>%s</strong>'%message
1058 except templating.Unauthorised, message:
1059 raise Unauthorised, str(message)
1060 except:
1061 # everything else
1062 if self.instance.config.WEB_DEBUG:
1063 return cgitb.pt_html(i18n=self.translator)
1064 exc_info = sys.exc_info()
1065 try:
1066 # If possible, send the HTML page template traceback
1067 # to the administrator.
1068 subject = "Templating Error: %s" % exc_info[1]
1069 self.send_html_to_admin(subject, cgitb.pt_html())
1070 # Now report the error to the user.
1071 return self._(error_message)
1072 except:
1073 # Reraise the original exception. The user will
1074 # receive an error message, and the adminstrator will
1075 # receive a traceback, albeit with less information
1076 # than the one we tried to generate above.
1077 raise exc_info[0], exc_info[1], exc_info[2]
1079 # these are the actions that are available
1080 actions = (
1081 ('edit', EditItemAction),
1082 ('editcsv', EditCSVAction),
1083 ('new', NewItemAction),
1084 ('register', RegisterAction),
1085 ('confrego', ConfRegoAction),
1086 ('passrst', PassResetAction),
1087 ('login', LoginAction),
1088 ('logout', LogoutAction),
1089 ('search', SearchAction),
1090 ('retire', RetireAction),
1091 ('show', ShowAction),
1092 ('export_csv', ExportCSVAction),
1093 )
1094 def handle_action(self):
1095 """ Determine whether there should be an Action called.
1097 The action is defined by the form variable :action which
1098 identifies the method on this object to call. The actions
1099 are defined in the "actions" sequence on this class.
1101 Actions may return a page (by default HTML) to return to the
1102 user, bypassing the usual template rendering.
1104 We explicitly catch Reject and ValueError exceptions and
1105 present their messages to the user.
1106 """
1107 if self.form.has_key(':action'):
1108 action = self.form[':action'].value.lower()
1109 elif self.form.has_key('@action'):
1110 action = self.form['@action'].value.lower()
1111 else:
1112 return None
1114 try:
1115 action_klass = self.get_action_class(action)
1117 # call the mapped action
1118 if isinstance(action_klass, type('')):
1119 # old way of specifying actions
1120 return getattr(self, action_klass)()
1121 else:
1122 return action_klass(self).execute()
1124 except (ValueError, Reject), err:
1125 self.error_message.append(str(err))
1127 def get_action_class(self, action_name):
1128 if (hasattr(self.instance, 'cgi_actions') and
1129 self.instance.cgi_actions.has_key(action_name)):
1130 # tracker-defined action
1131 action_klass = self.instance.cgi_actions[action_name]
1132 else:
1133 # go with a default
1134 for name, action_klass in self.actions:
1135 if name == action_name:
1136 break
1137 else:
1138 raise ValueError, 'No such action "%s"'%action_name
1139 return action_klass
1141 def _socket_op(self, call, *args, **kwargs):
1142 """Execute socket-related operation, catch common network errors
1144 Parameters:
1145 call: a callable to execute
1146 args, kwargs: call arguments
1148 """
1149 try:
1150 call(*args, **kwargs)
1151 except socket.error, err:
1152 err_errno = getattr (err, 'errno', None)
1153 if err_errno is None:
1154 try:
1155 err_errno = err[0]
1156 except TypeError:
1157 pass
1158 if err_errno not in self.IGNORE_NET_ERRORS:
1159 raise
1160 except IOError:
1161 # Apache's mod_python will raise IOError -- without an
1162 # accompanying errno -- when a write to the client fails.
1163 # A common case is that the client has closed the
1164 # connection. There's no way to be certain that this is
1165 # the situation that has occurred here, but that is the
1166 # most likely case.
1167 pass
1169 def write(self, content):
1170 if not self.headers_done:
1171 self.header()
1172 if self.env['REQUEST_METHOD'] != 'HEAD':
1173 self._socket_op(self.request.wfile.write, content)
1175 def write_html(self, content):
1176 if not self.headers_done:
1177 # at this point, we are sure about Content-Type
1178 if not self.additional_headers.has_key('Content-Type'):
1179 self.additional_headers['Content-Type'] = \
1180 'text/html; charset=%s' % self.charset
1181 self.header()
1183 if self.env['REQUEST_METHOD'] == 'HEAD':
1184 # client doesn't care about content
1185 return
1187 if self.charset != self.STORAGE_CHARSET:
1188 # recode output
1189 content = content.decode(self.STORAGE_CHARSET, 'replace')
1190 content = content.encode(self.charset, 'xmlcharrefreplace')
1192 # and write
1193 self._socket_op(self.request.wfile.write, content)
1195 def http_strip(self, content):
1196 """Remove HTTP Linear White Space from 'content'.
1198 'content' -- A string.
1200 returns -- 'content', with all leading and trailing LWS
1201 removed."""
1203 # RFC 2616 2.2: Basic Rules
1204 #
1205 # LWS = [CRLF] 1*( SP | HT )
1206 return content.strip(" \r\n\t")
1208 def http_split(self, content):
1209 """Split an HTTP list.
1211 'content' -- A string, giving a list of items.
1213 returns -- A sequence of strings, containing the elements of
1214 the list."""
1216 # RFC 2616 2.1: Augmented BNF
1217 #
1218 # Grammar productions of the form "#rule" indicate a
1219 # comma-separated list of elements matching "rule". LWS
1220 # is then removed from each element, and empty elements
1221 # removed.
1223 # Split at commas.
1224 elements = content.split(",")
1225 # Remove linear whitespace at either end of the string.
1226 elements = [self.http_strip(e) for e in elements]
1227 # Remove any now-empty elements.
1228 return [e for e in elements if e]
1230 def handle_range_header(self, length, etag):
1231 """Handle the 'Range' and 'If-Range' headers.
1233 'length' -- the length of the content available for the
1234 resource.
1236 'etag' -- the entity tag for this resources.
1238 returns -- If the request headers (including 'Range' and
1239 'If-Range') indicate that only a portion of the entity should
1240 be returned, then the return value is a pair '(offfset,
1241 length)' indicating the first byte and number of bytes of the
1242 content that should be returned to the client. In addition,
1243 this method will set 'self.response_code' to indicate Partial
1244 Content. In all other cases, the return value is 'None'. If
1245 appropriate, 'self.response_code' will be
1246 set to indicate 'REQUESTED_RANGE_NOT_SATISFIABLE'. In that
1247 case, the caller should not send any data to the client."""
1249 # RFC 2616 14.35: Range
1250 #
1251 # See if the Range header is present.
1252 ranges_specifier = self.env.get("HTTP_RANGE")
1253 if ranges_specifier is None:
1254 return None
1255 # RFC 2616 14.27: If-Range
1256 #
1257 # Check to see if there is an If-Range header.
1258 # Because the specification says:
1259 #
1260 # The If-Range header ... MUST be ignored if the request
1261 # does not include a Range header, we check for If-Range
1262 # after checking for Range.
1263 if_range = self.env.get("HTTP_IF_RANGE")
1264 if if_range:
1265 # The grammar for the If-Range header is:
1266 #
1267 # If-Range = "If-Range" ":" ( entity-tag | HTTP-date )
1268 # entity-tag = [ weak ] opaque-tag
1269 # weak = "W/"
1270 # opaque-tag = quoted-string
1271 #
1272 # We only support strong entity tags.
1273 if_range = self.http_strip(if_range)
1274 if (not if_range.startswith('"')
1275 or not if_range.endswith('"')):
1276 return None
1277 # If the condition doesn't match the entity tag, then we
1278 # must send the client the entire file.
1279 if if_range != etag:
1280 return
1281 # The grammar for the Range header value is:
1282 #
1283 # ranges-specifier = byte-ranges-specifier
1284 # byte-ranges-specifier = bytes-unit "=" byte-range-set
1285 # byte-range-set = 1#( byte-range-spec | suffix-byte-range-spec )
1286 # byte-range-spec = first-byte-pos "-" [last-byte-pos]
1287 # first-byte-pos = 1*DIGIT
1288 # last-byte-pos = 1*DIGIT
1289 # suffix-byte-range-spec = "-" suffix-length
1290 # suffix-length = 1*DIGIT
1291 #
1292 # Look for the "=" separating the units from the range set.
1293 specs = ranges_specifier.split("=", 1)
1294 if len(specs) != 2:
1295 return None
1296 # Check that the bytes-unit is in fact "bytes". If it is not,
1297 # we do not know how to process this range.
1298 bytes_unit = self.http_strip(specs[0])
1299 if bytes_unit != "bytes":
1300 return None
1301 # Seperate the range-set into range-specs.
1302 byte_range_set = self.http_strip(specs[1])
1303 byte_range_specs = self.http_split(byte_range_set)
1304 # We only handle exactly one range at this time.
1305 if len(byte_range_specs) != 1:
1306 return None
1307 # Parse the spec.
1308 byte_range_spec = byte_range_specs[0]
1309 pos = byte_range_spec.split("-", 1)
1310 if len(pos) != 2:
1311 return None
1312 # Get the first and last bytes.
1313 first = self.http_strip(pos[0])
1314 last = self.http_strip(pos[1])
1315 # We do not handle suffix ranges.
1316 if not first:
1317 return None
1318 # Convert the first and last positions to integers.
1319 try:
1320 first = int(first)
1321 if last:
1322 last = int(last)
1323 else:
1324 last = length - 1
1325 except:
1326 # The positions could not be parsed as integers.
1327 return None
1328 # Check that the range makes sense.
1329 if (first < 0 or last < 0 or last < first):
1330 return None
1331 if last >= length:
1332 # RFC 2616 10.4.17: 416 Requested Range Not Satisfiable
1333 #
1334 # If there is an If-Range header, RFC 2616 says that we
1335 # should just ignore the invalid Range header.
1336 if if_range:
1337 return None
1338 # Return code 416 with a Content-Range header giving the
1339 # allowable range.
1340 self.response_code = httplib.REQUESTED_RANGE_NOT_SATISFIABLE
1341 self.setHeader("Content-Range", "bytes */%d" % length)
1342 return None
1343 # RFC 2616 10.2.7: 206 Partial Content
1344 #
1345 # Tell the client that we are honoring the Range request by
1346 # indicating that we are providing partial content.
1347 self.response_code = httplib.PARTIAL_CONTENT
1348 # RFC 2616 14.16: Content-Range
1349 #
1350 # Tell the client what data we are providing.
1351 #
1352 # content-range-spec = byte-content-range-spec
1353 # byte-content-range-spec = bytes-unit SP
1354 # byte-range-resp-spec "/"
1355 # ( instance-length | "*" )
1356 # byte-range-resp-spec = (first-byte-pos "-" last-byte-pos)
1357 # | "*"
1358 # instance-length = 1 * DIGIT
1359 self.setHeader("Content-Range",
1360 "bytes %d-%d/%d" % (first, last, length))
1361 return (first, last - first + 1)
1363 def write_file(self, filename):
1364 """Send the contents of 'filename' to the user."""
1366 # Determine the length of the file.
1367 stat_info = os.stat(filename)
1368 length = stat_info[stat.ST_SIZE]
1369 # Assume we will return the entire file.
1370 offset = 0
1371 # If the headers have not already been finalized,
1372 if not self.headers_done:
1373 # RFC 2616 14.19: ETag
1374 #
1375 # Compute the entity tag, in a format similar to that
1376 # used by Apache.
1377 etag = '"%x-%x-%x"' % (stat_info[stat.ST_INO],
1378 length,
1379 stat_info[stat.ST_MTIME])
1380 self.setHeader("ETag", etag)
1381 # RFC 2616 14.5: Accept-Ranges
1382 #
1383 # Let the client know that we will accept range requests.
1384 self.setHeader("Accept-Ranges", "bytes")
1385 # RFC 2616 14.35: Range
1386 #
1387 # If there is a Range header, we may be able to avoid
1388 # sending the entire file.
1389 content_range = self.handle_range_header(length, etag)
1390 if content_range:
1391 offset, length = content_range
1392 # RFC 2616 14.13: Content-Length
1393 #
1394 # Tell the client how much data we are providing.
1395 self.setHeader("Content-Length", str(length))
1396 # Send the HTTP header.
1397 self.header()
1398 # If the client doesn't actually want the body, or if we are
1399 # indicating an invalid range.
1400 if (self.env['REQUEST_METHOD'] == 'HEAD'
1401 or self.response_code == httplib.REQUESTED_RANGE_NOT_SATISFIABLE):
1402 return
1403 # Use the optimized "sendfile" operation, if possible.
1404 if hasattr(self.request, "sendfile"):
1405 self._socket_op(self.request.sendfile, filename, offset, length)
1406 return
1407 # Fallback to the "write" operation.
1408 f = open(filename, 'rb')
1409 try:
1410 if offset:
1411 f.seek(offset)
1412 content = f.read(length)
1413 finally:
1414 f.close()
1415 self.write(content)
1417 def setHeader(self, header, value):
1418 """Override a header to be returned to the user's browser.
1419 """
1420 self.additional_headers[header] = value
1422 def header(self, headers=None, response=None):
1423 """Put up the appropriate header.
1424 """
1425 if headers is None:
1426 headers = {'Content-Type':'text/html; charset=utf-8'}
1427 if response is None:
1428 response = self.response_code
1430 # update with additional info
1431 headers.update(self.additional_headers)
1433 if headers.get('Content-Type', 'text/html') == 'text/html':
1434 headers['Content-Type'] = 'text/html; charset=utf-8'
1436 headers = headers.items()
1438 for ((path, name), (value, expire)) in self._cookies.items():
1439 cookie = "%s=%s; Path=%s;"%(name, value, path)
1440 if expire is not None:
1441 cookie += " expires=%s;"%Cookie._getdate(expire)
1442 headers.append(('Set-Cookie', cookie))
1444 self._socket_op(self.request.start_response, headers, response)
1446 self.headers_done = 1
1447 if self.debug:
1448 self.headers_sent = headers
1450 def add_cookie(self, name, value, expire=86400*365, path=None):
1451 """Set a cookie value to be sent in HTTP headers
1453 Parameters:
1454 name:
1455 cookie name
1456 value:
1457 cookie value
1458 expire:
1459 cookie expiration time (seconds).
1460 If value is empty (meaning "delete cookie"),
1461 expiration time is forced in the past
1462 and this argument is ignored.
1463 If None, the cookie will expire at end-of-session.
1464 If omitted, the cookie will be kept for a year.
1465 path:
1466 cookie path (optional)
1468 """
1469 if path is None:
1470 path = self.cookie_path
1471 if not value:
1472 expire = -1
1473 self._cookies[(path, name)] = (value, expire)
1475 def set_cookie(self, user, expire=None):
1476 """Deprecated. Use session_api calls directly
1478 XXX remove
1479 """
1481 # insert the session in the session db
1482 self.session_api.set(user=user)
1483 # refresh session cookie
1484 self.session_api.update(set_cookie=True, expire=expire)
1486 def make_user_anonymous(self):
1487 """ Make us anonymous
1489 This method used to handle non-existence of the 'anonymous'
1490 user, but that user is mandatory now.
1491 """
1492 self.userid = self.db.user.lookup('anonymous')
1493 self.user = 'anonymous'
1495 def standard_message(self, to, subject, body, author=None):
1496 """Send a standard email message from Roundup.
1498 "to" - recipients list
1499 "subject" - Subject
1500 "body" - Message
1501 "author" - (name, address) tuple or None for admin email
1503 Arguments are passed to the Mailer.standard_message code.
1504 """
1505 try:
1506 self.mailer.standard_message(to, subject, body, author)
1507 except MessageSendError, e:
1508 self.error_message.append(str(e))
1509 return 0
1510 return 1
1512 def parsePropsFromForm(self, create=0):
1513 return FormParser(self).parse(create=create)
1515 # vim: set et sts=4 sw=4 :