def add_new_media_file(media, uploaded_file=None, url=None):
"""Create a new MediaFile for the provided Media object and File/URL
and add it to that Media object's files list.
Will also attempt to set up duration and thumbnails according to the
'use_embed_thumbnails' setting.
:param media: The Media object to append the file to
:type media: :class:`~mediacore.model.media.Media` instance
:param uploaded_file: An object with 'filename' and 'file' properties.
:type uploaded_file: Formencode uploaded file object.
:param url: The URL to represent, if no file is given.
:type url: unicode
:returns: The created MediaFile (or None)
"""
if uploaded_file is not None:
# Create a MediaFile object, add it to the video, and store the file permanently.
media_file = media_file_from_filename(uploaded_file.filename)
attach_and_store_media_file(media, media_file, uploaded_file.file)
elif url is not None:
# Looks like we were just given a URL. Create a MediaFile object with that URL.
media_file, thumb_url, duration, title = media_file_from_url(url)
media.files.append(media_file)
if title and media.slug.startswith('_stub_'):
media.title = title
media.slug = get_available_slug(Media, title, media)
# Do we have a useful duration?
if duration and not media.duration:
media.duration = duration
# Do we need to create thumbs for an embedded media item?
if thumb_url \
and asbool(app_globals.settings['use_embed_thumbnails']) \
and (not has_thumbs(media) or has_default_thumbs(media)):
# Download the image into a buffer, wrap the buffer as a File-like
# object, and create the thumbs.
try:
temp_img = urllib2.urlopen(thumb_url)
file_like_img = StringIO(temp_img.read())
temp_img.close()
create_thumbs_for(media, file_like_img, thumb_url)
file_like_img.close()
except urllib2.URLError, e:
log.exception(e)
def add_new_media_file(media, file=None, url=None):
"""Create a MediaFile instance from the given file or URL.
This function MAY modify the given media object.
:type media: :class:`~mediacore.model.media.Media` instance
:param media: The media object that this file or URL will belong to.
:type file: :class:`cgi.FieldStorage` or None
:param file: A freshly uploaded file object.
:type url: unicode or None
:param url: A remote URL string.
:rtype: :class:`~mediacore.model.media.MediaFile`
:returns: A newly created media file instance.
:raises StorageError: If the input file or URL cannot be
stored with any of the registered storage engines.
"""
engines = DBSession.query(StorageEngine)\
.filter(StorageEngine.enabled == True)\
.all()
sorted_engines = list(sort_engines(engines))
for engine in sorted_engines:
try:
meta = engine.parse(file=file, url=url)
log.debug('Engine %r returned meta %r', engine, meta)
break
except UnsuitableEngineError:
log.debug('Engine %r unsuitable for %r/%r', engine, file, url)
continue
else:
raise StorageError(_('Unusable file or URL provided.'), None, None)
mf = MediaFile()
mf.storage = engine
mf.media = media
mf.type = meta['type']
mf.display_name = meta.get('display_name', default_display_name(file, url))
mf.unique_id = meta.get('unique_id', None)
mf.container = meta.get('container', None)
mf.size = meta.get('size', None)
mf.bitrate = meta.get('bitrate', None)
mf.width = meta.get('width', None)
mf.height = meta.get('height', None)
media.files.append(mf)
DBSession.flush()
unique_id = engine.store(media_file=mf, file=file, url=url, meta=meta)
if unique_id:
mf.unique_id = unique_id
elif not mf.unique_id:
raise StorageError('Engine %r returned no unique ID.', engine)
if not media.duration and meta.get('duration', 0):
media.duration = meta['duration']
if not media.description and meta.get('description'):
media.description = clean_xhtml(meta['description'])
if not media.title:
media.title = meta.get('title', None) or mf.display_name
if media.type is None:
media.type = mf.type
if ('thumbnail_url' in meta or 'thumbnail_file' in meta) \
and (not has_thumbs(media) or has_default_thumbs(media)):
thumb_file = meta.get('thumbnail_file', None)
if thumb_file is not None:
thumb_filename = thumb_file.filename
else:
thumb_url = meta['thumbnail_url']
thumb_filename = os.path.basename(thumb_url)
# Download the image to a buffer and wrap it as a file-like object
try:
temp_img = urlopen(thumb_url)
thumb_file = StringIO(temp_img.read())
temp_img.close()
except URLError, e:
log.exception(e)
if thumb_file is not None:
create_thumbs_for(media, thumb_file, thumb_filename)
thumb_file.close()
def merge_stubs(self, orig_id, input_id, **kwargs):
"""Merge in a newly created media item.
This is merges media that has just been created. It must have:
1. a non-default thumbnail, or
2. a file, or
3. a title, description, etc
:param orig_id: Media ID to copy data to
:type orig_id: ``int``
:param input_id: Media ID to source files, thumbs, etc from
:type input_id: ``int``
:returns: JSON dict
"""
orig = fetch_row(Media, orig_id)
input = fetch_row(Media, input_id)
merged_files = []
# Merge in the file(s) from the input stub
if input.slug.startswith('_stub_') and input.files:
for file in input.files[:]:
# XXX: The filename will still use the old ID
file.media = orig
merged_files.append(file)
DBSession.delete(input)
# The original is a file or thumb stub, copy in the new values
elif orig.slug.startswith('_stub_') \
and not input.slug.startswith('_stub_'):
DBSession.delete(input)
DBSession.flush()
orig.podcast = input.podcast
orig.title = input.title
orig.subtitle = input.subtitle
orig.slug = input.slug
orig.author = input.author
orig.description = input.description
orig.notes = input.notes
orig.duration = input.duration
orig.views = input.views
orig.likes = input.likes
orig.publish_on = input.publish_on
orig.publish_until = input.publish_until
orig.categories = input.categories
orig.tags = input.tags
orig.update_popularity()
# Copy the input thumb over the default thumbnail
elif input.slug.startswith('_stub_') \
and has_default_thumbs(orig) \
and not has_default_thumbs(input):
for key, dst_path in thumb_paths(orig).iteritems():
src_path = thumb_path(input, key)
# This will raise an OSError on Windows, but not *nix
os.rename(src_path, dst_path)
DBSession.delete(input)
# Report an error
else:
return dict(
success = False,
message = u'No merge operation fits.',
)
orig.update_status()
status_form_xhtml = unicode(update_status_form.display(
action=url_for(action='update_status', id=orig.id),
media=orig))
file_xhtml = {}
for file in merged_files:
file_xhtml[file.id] = unicode(edit_file_form.display(
action=url_for(action='edit_file', id=orig.id),
file=file))
return dict(
success = True,
media_id = orig.id,
title = orig.title,
link = url_for(action='edit', id=orig.id),
status_form = status_form_xhtml,
file_forms = file_xhtml,
)
def merge_stubs(self, orig_id, input_id, **kwargs):
"""Merge in a newly created media item.
This is merges media that has just been created. It must have:
1. a non-default thumbnail, or
2. a file, or
3. a title, description, etc
:param orig_id: Media ID to copy data to
:type orig_id: ``int``
:param input_id: Media ID to source files, thumbs, etc from
:type input_id: ``int``
:returns: JSON dict
"""
orig = fetch_row(Media, orig_id)
input = fetch_row(Media, input_id)
merged_files = []
# Merge in the file(s) from the input stub
if input.slug.startswith('_stub_') and input.files:
for file in input.files[:]:
# XXX: The filename will still use the old ID
file.media = orig
merged_files.append(file)
DBSession.delete(input)
# The original is a file or thumb stub, copy in the new values
elif orig.slug.startswith('_stub_') \
and not input.slug.startswith('_stub_'):
DBSession.delete(input)
DBSession.flush()
orig.podcast = input.podcast
orig.title = input.title
orig.subtitle = input.subtitle
orig.slug = input.slug
orig.author = input.author
orig.description = input.description
orig.notes = input.notes
orig.duration = input.duration
orig.views = input.views
orig.likes = input.likes
orig.publish_on = input.publish_on
orig.publish_until = input.publish_until
orig.categories = input.categories
orig.tags = input.tags
orig.update_popularity()
# Copy the input thumb over the default thumbnail
elif input.slug.startswith('_stub_') \
and has_default_thumbs(orig) \
and not has_default_thumbs(input):
for key, dst_path in thumb_paths(orig).iteritems():
src_path = thumb_path(input, key)
# This will raise an OSError on Windows, but not *nix
os.rename(src_path, dst_path)
DBSession.delete(input)
# Report an error
else:
return dict(
success = False,
message = u'No merge operation fits.',
)
orig.update_status()
status_form_xhtml = unicode(update_status_form.display(
action=url_for(action='update_status', id=orig.id),
media=orig))
file_xhtml = {}
for file in merged_files:
file_xhtml[file.id] = unicode(edit_file_form.display(
action=url_for(action='edit_file', id=orig.id),
file=file))
return dict(
success = True,
media_id = orig.id,
title = orig.title,
link = url_for(action='edit', id=orig.id),
status_form = status_form_xhtml,
file_forms = file_xhtml,
)
def add_new_media_file(media, file=None, url=None):
"""Create a MediaFile instance from the given file or URL.
This function MAY modify the given media object.
:type media: :class:`~mediacore.model.media.Media` instance
:param media: The media object that this file or URL will belong to.
:type file: :class:`cgi.FieldStorage` or None
:param file: A freshly uploaded file object.
:type url: unicode or None
:param url: A remote URL string.
:rtype: :class:`~mediacore.model.media.MediaFile`
:returns: A newly created media file instance.
:raises StorageError: If the input file or URL cannot be
stored with any of the registered storage engines.
"""
engines = DBSession.query(StorageEngine)\
.filter(StorageEngine.enabled == True)\
.all()
sorted_engines = list(sort_engines(engines))
for engine in sorted_engines:
try:
meta = engine.parse(file=file, url=url)
log.debug('Engine %r returned meta %r', engine, meta)
break
except UnsuitableEngineError:
log.debug('Engine %r unsuitable for %r/%r', engine, file, url)
continue
else:
raise StorageError(_('Unusable file or URL provided.'), None, None)
mf = MediaFile()
mf.storage = engine
mf.media = media
mf.type = meta['type']
mf.display_name = meta.get('display_name', default_display_name(file, url))
mf.unique_id = meta.get('unique_id', None)
mf.container = meta.get('container', None)
mf.size = meta.get('size', None)
mf.bitrate = meta.get('bitrate', None)
mf.width = meta.get('width', None)
mf.height = meta.get('height', None)
media.files.append(mf)
DBSession.flush()
unique_id = engine.store(media_file=mf, file=file, url=url, meta=meta)
if unique_id:
mf.unique_id = unique_id
elif not mf.unique_id:
raise StorageError('Engine %r returned no unique ID.', engine)
if not media.duration and meta.get('duration', 0):
media.duration = meta['duration']
if not media.description and meta.get('description'):
media.description = clean_xhtml(meta['description'])
if not media.title:
media.title = meta.get('title', None) or mf.display_name
if media.type is None:
media.type = mf.type
if ('thumbnail_url' in meta or 'thumbnail_file' in meta) \
and (not has_thumbs(media) or has_default_thumbs(media)):
thumb_file = meta.get('thumbnail_file', None)
if thumb_file is not None:
thumb_filename = thumb_file.filename
else:
thumb_url = meta['thumbnail_url']
thumb_filename = os.path.basename(thumb_url)
# Download the image to a buffer and wrap it as a file-like object
try:
temp_img = urlopen(thumb_url)
thumb_file = StringIO(temp_img.read())
temp_img.close()
except URLError, e:
log.exception(e)
if thumb_file is not None:
create_thumbs_for(media, thumb_file, thumb_filename)
thumb_file.close()
def save(self, id, slug, title, author_name, author_email,
description, notes, podcast, tags, categories,
delete=None, **kwargs):
"""Save changes or create a new :class:`~mediacore.model.media.Media` instance.
Form handler the :meth:`edit` action and the
:class:`~mediacore.forms.admin.media.MediaForm`.
Redirects back to :meth:`edit` after successful editing
and :meth:`index` after successful deletion.
"""
media = fetch_row(Media, id)
if delete:
self._delete_media(media)
DBSession.commit()
redirect(action='index', id=None)
if not slug:
slug = title
elif slug.startswith('_stub_'):
slug = slug[len('_stub_'):]
if slug != media.slug:
media.slug = get_available_slug(Media, slug, media)
media.title = title
media.author = Author(author_name, author_email)
media.description = description
media.notes = notes
media.podcast_id = podcast
media.set_tags(tags)
media.set_categories(categories)
media.update_status()
DBSession.add(media)
DBSession.flush()
if id == 'new' and not has_thumbs(media):
try:
create_default_thumbs_for(media)
except:
pass
if id != 'new' and has_default_thumbs(media):
if media.files:
try:
self.generate_thumb_from_video(media)
except:
pass
if request.is_xhr:
status_form_xhtml = unicode(update_status_form.display(
action=url_for(action='update_status', id=media.id),
media=media))
return dict(
media_id = media.id,
values = {'slug': slug},
link = url_for(action='edit', id=media.id),
status_form = status_form_xhtml,
)
else:
redirect(action='edit', id=media.id)
