1 # GNU MediaGoblin -- federated, autonomous media hosting
2 # Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
4 # This program is free software: you can redistribute it and/or modify
5 # it under the terms of the GNU Affero General Public License as published by
6 # the Free Software Foundation, either version 3 of the License, or
7 # (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU Affero General Public License for more details.
14 # You should have received a copy of the GNU Affero General Public License
15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17 import mediagoblin
.mg_globals
as mg_globals
19 from os
.path
import splitext
20 from cgi
import FieldStorage
22 from celery
import registry
27 _log
= logging
.getLogger(__name__
)
29 from werkzeug
.utils
import secure_filename
31 from mediagoblin
.db
.util
import ObjectId
32 from mediagoblin
.tools
.text
import convert_to_tag_list_of_dicts
33 from mediagoblin
.tools
.translate
import pass_to_ugettext
as _
34 from mediagoblin
.tools
.response
import render_to_response
, redirect
35 from mediagoblin
.decorators
import require_active_login
36 from mediagoblin
.submit
import forms
as submit_forms
37 from mediagoblin
.processing
import mark_entry_failed
38 from mediagoblin
.processing
.task
import ProcessMedia
39 from mediagoblin
.messages
import add_message
, SUCCESS
40 from mediagoblin
.media_types
import sniff_media
, \
41 InvalidFileType
, FileTypeNotSupported
45 def submit_start(request
):
47 First view for submitting a file.
49 submit_form
= submit_forms
.SubmitStartForm(request
.POST
)
51 if request
.method
== 'POST' and submit_form
.validate():
52 if not ('file' in request
.POST
53 and isinstance(request
.POST
['file'], FieldStorage
)
54 and request
.POST
['file'].file):
55 submit_form
.file.errors
.append(
56 _(u
'You must provide a file.'))
59 filename
= request
.POST
['file'].filename
61 # Sniff the submitted media to determine which
62 # media plugin should handle processing
63 media_type
, media_manager
= sniff_media(
66 # create entry and save in database
67 entry
= request
.db
.MediaEntry()
69 entry
.media_type
= unicode(media_type
)
71 unicode(request
.POST
['title'])
72 or unicode(splitext(filename
)[0]))
74 entry
.description
= unicode(request
.POST
.get('description'))
76 entry
.license
= unicode(request
.POST
.get('license', "")) or None
78 entry
.uploader
= request
.user
._id
80 # Process the user's folksonomy "tags"
81 entry
.tags
= convert_to_tag_list_of_dicts(
82 request
.POST
.get('tags'))
84 # Generate a slug from the title
87 # We generate this ourselves so we know what the taks id is for
90 # (If we got it off the task's auto-generation, there'd be
91 # a risk of a race condition when we'd save after sending
93 task_id
= unicode(uuid
.uuid4())
95 # Now store generate the queueing related filename
96 queue_filepath
= request
.app
.queue_store
.get_unique_filepath(
99 secure_filename(filename
)])
101 # queue appropriately
102 queue_file
= request
.app
.queue_store
.get_file(
103 queue_filepath
, 'wb')
106 queue_file
.write(request
.POST
['file'].file.read())
108 # Add queued filename to the entry
109 entry
.queued_media_file
= queue_filepath
111 entry
.queued_task_id
= task_id
113 # Save now so we have this data before kicking off processing
114 entry
.save(validate
=True)
116 # Pass off to processing
118 # (... don't change entry after this point to avoid race
119 # conditions with changes to the document via processing code)
120 process_media
= registry
.tasks
[ProcessMedia
.name
]
122 process_media
.apply_async(
123 [unicode(entry
._id
)], {},
125 except BaseException
as exc
:
126 # The purpose of this section is because when running in "lazy"
127 # or always-eager-with-exceptions-propagated celery mode that
128 # the failure handling won't happen on Celery end. Since we
129 # expect a lot of users to run things in this way we have to
130 # capture stuff here.
132 # ... not completely the diaper pattern because the
133 # exception is re-raised :)
134 mark_entry_failed(entry
._id
, exc
)
135 # re-raise the exception
138 if mg_globals
.app_config
["push_urls"]:
139 feed_url
= request
.urlgen(
140 'mediagoblin.user_pages.atom_feed',
142 user
=request
.user
.username
)
144 'hub.mode': 'publish',
146 hubdata
= urllib
.urlencode(hubparameters
)
148 "Content-type": "application/x-www-form-urlencoded",
149 "Connection": "close"}
150 for huburl
in mg_globals
.app_config
["push_urls"]:
151 hubrequest
= urllib2
.Request(huburl
, hubdata
, hubheaders
)
153 hubresponse
= urllib2
.urlopen(hubrequest
)
154 except urllib2
.HTTPError
as exc
:
155 # This is not a big issue, the item will be fetched
156 # by the PuSH server next time we hit it
158 "push url %r gave error %r", huburl
, exc
.code
)
159 except urllib2
.URLError
as exc
:
161 "push url %r is unreachable %r", huburl
, exc
.reason
)
163 add_message(request
, SUCCESS
, _('Woohoo! Submitted!'))
165 return redirect(request
, "mediagoblin.user_pages.user_home",
166 user
=request
.user
.username
)
167 except Exception as e
:
169 This section is intended to catch exceptions raised in
170 mediagobling.media_types
172 if isinstance(e
, InvalidFileType
) or \
173 isinstance(e
, FileTypeNotSupported
):
174 submit_form
.file.errors
.append(
179 return render_to_response(
181 'mediagoblin/submit/start.html',
182 {'submit_form': submit_form
,
183 'app_config': mg_globals
.app_config
})