1 # GNU MediaGoblin -- federated, autonomous media hosting
2 # Copyright (C) 2011 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
24 from werkzeug
.utils
import secure_filename
26 from mediagoblin
.db
.util
import ObjectId
27 from mediagoblin
.tools
.text
import cleaned_markdown_conversion
, convert_to_tag_list_of_dicts
28 from mediagoblin
.tools
.translate
import pass_to_ugettext
as _
29 from mediagoblin
.tools
.response
import render_to_response
, redirect
30 from mediagoblin
.decorators
import require_active_login
31 from mediagoblin
.submit
import forms
as submit_forms
, security
32 from mediagoblin
.processing
import mark_entry_failed
, ProcessMedia
33 from mediagoblin
.messages
import add_message
, SUCCESS
34 from mediagoblin
.media_types
import get_media_type_and_manager
, InvalidFileType
38 def submit_start(request
):
40 First view for submitting a file.
42 submit_form
= submit_forms
.SubmitStartForm(request
.POST
)
44 if request
.method
== 'POST' and submit_form
.validate():
45 if not ('file' in request
.POST
46 and isinstance(request
.POST
['file'], FieldStorage
)
47 and request
.POST
['file'].file):
48 submit_form
.file.errors
.append(
49 _(u
'You must provide a file.'))
52 filename
= request
.POST
['file'].filename
53 media_type
, media_manager
= get_media_type_and_manager(filename
)
55 # create entry and save in database
56 entry
= request
.db
.MediaEntry()
57 entry
['_id'] = ObjectId()
58 entry
.media_type
= unicode(media_type
)
60 unicode(request
.POST
['title'])
61 or unicode(splitext(filename
)[0]))
63 entry
.description
= unicode(request
.POST
.get('description'))
64 entry
.description_html
= cleaned_markdown_conversion(
67 entry
.uploader
= request
.user
._id
69 # Process the user's folksonomy "tags"
70 entry
['tags'] = convert_to_tag_list_of_dicts(
71 request
.POST
.get('tags'))
73 # Generate a slug from the title
77 # Now store generate the queueing related filename
78 queue_filepath
= request
.app
.queue_store
.get_unique_filepath(
81 secure_filename(filename
)])
84 queue_file
= request
.app
.queue_store
.get_file(
88 queue_file
.write(request
.POST
['file'].file.read())
90 # Add queued filename to the entry
91 entry
['queued_media_file'] = queue_filepath
93 # We generate this ourselves so we know what the taks id is for
96 # (If we got it off the task's auto-generation, there'd be
97 # a risk of a race condition when we'd save after sending
99 task_id
= unicode(uuid
.uuid4())
100 entry
['queued_task_id'] = task_id
102 # Save now so we have this data before kicking off processing
103 entry
.save(validate
=True)
105 # Pass off to processing
107 # (... don't change entry after this point to avoid race
108 # conditions with changes to the document via processing code)
109 process_media
= registry
.tasks
[ProcessMedia
.name
]
111 process_media
.apply_async(
112 [unicode(entry
._id
)], {},
114 except BaseException
as exc
:
115 # The purpose of this section is because when running in "lazy"
116 # or always-eager-with-exceptions-propagated celery mode that
117 # the failure handling won't happen on Celery end. Since we
118 # expect a lot of users to run things in this way we have to
119 # capture stuff here.
121 # ... not completely the diaper pattern because the
122 # exception is re-raised :)
123 mark_entry_failed(entry
._id
, exc
)
124 # re-raise the exception
127 add_message(request
, SUCCESS
, _('Woohoo! Submitted!'))
129 return redirect(request
, "mediagoblin.user_pages.user_home",
130 user
=request
.user
.username
)
131 except InvalidFileType
, exc
:
132 submit_form
.file.errors
.append(
133 _(u
'Invalid file type.'))
135 return render_to_response(
137 'mediagoblin/submit/start.html',
138 {'submit_form': submit_form
,
139 'app_config': mg_globals
.app_config
})