def publish(self, channeltitle, url, title=""):
"""Publish the video (channeltitle, url, title)
"""
adminuser = get_user('coco')
try:
channel = Channel.objects.get(Q(slug=channeltitle) | Q(title=channeltitle))
except:
channel = Channel(creator=adminuser, contributor=adminuser, title=channeltitle, slug=slugify(channeltitle))
channel.save()
if not title:
title = os.path.basename(url)
slug = slugify(title)
try:
chapter = Chapter.objects.get(title=title, channel=channel)
except Chapter.DoesNotExist:
chapter = Chapter(creator=adminuser, contributor=adminuser, channel=channel, title=title, slug=slug)
chapter.save()
activity = Activity(creator=adminuser, contributor=adminuser,
title=title,
slug=slug,
chapter=chapter)
activity.save()
# Get length
duration = 0
dur = subprocess.check_output('gst-discoverer-1.0 "%s" | grep Duration' % url, shell=True)
if dur:
info = re.search('(\d+):(\d+):(\d+.\d+)', dur)
if info:
duration = float(info.group(1)) * 24 * 60 + float(info.group(2)) * 60 + float(info.group(3))
vid = Video(creator=adminuser, contributor=adminuser,
activity=activity,
title=title,
url=url,
slug=slug,
duration=duration)
# Save anyway, so that we have a valid video even if thumbnailing fails
vid.save()
# Get thumbnail
thumbnail_name = os.tmpnam() + ".jpg"
# Low-dependency thumbnailer
subprocess.call('gst-launch-1.0 gnlurisource "uri=%s" start=4000000 duration=2000000 ! videoconvert ! jpegenc ! filesink location=%s' % (url, thumbnail_name), shell=True)
if os.path.exists(thumbnail_name):
with open(thumbnail_name, 'rb') as f:
vid.thumbnail.save(os.path.basename(thumbnail_name), File(f))
for o in (vid.activity, vid.activity.chapter, vid.activity.chapter.channel):
if not o.thumbnail:
# Use same thumbnail
with open(thumbnail_name, 'rb') as f:
o.thumbnail.save(os.path.basename(thumbnail_name), File(f))
o.save()
os.unlink(thumbnail_name)
vid.save()
def _info(self, channel, info):
"""Import video/channel info from info.json files. Params: channel_title info.json
"""
with open(info, 'r') as f:
data = json.load(f)
self.stdout.write("Saving %s\n" % data.get("title"))
adminuser = get_user('coco')
dirname = os.path.dirname(os.path.abspath(info))
try:
c = Channel.objects.get(Q(title=channel) | Q(slug=channel))
except Channel.DoesNotExist:
c = Channel(creator=adminuser, contributor=adminuser, title=channel, slug=slugify(channel))
c.save()
title = data.get("title", "Titre inconnu")
if title.startswith("Langage C -"):
title = title.replace("Langage C -", "")
try:
chapter = Chapter.objects.get(title=title, channel=c)
except Chapter.DoesNotExist:
chapter = Chapter(creator=adminuser, contributor=adminuser, channel=c, title=title, slug=slugify(title))
chapter.save()
descr = "%s - %s" % (data.get("date", "Date inconnue"),
data.get("author", "Auteur inconnu"))
activity = Activity(creator=adminuser, contributor=adminuser,
title=title,
chapter=chapter, description=descr)
activity.save()
url = data.get("url", "")
if not url:
# Default url
url = "https://comin-ocw.org/contents/%s/camera.mp4" % dirname.split('/contents/')[-1]
vid = Video(creator=adminuser, contributor=adminuser,
activity=activity,
title=title,
url=url)
# Note: length is not initialized. We will get its duration
# from the package just below.
# Migrate license info
licenses = [license
for license in ('cc-by', 'cc-by-nc', 'cc-by-sa', 'cc-by-nc-sa')
if data.get(license)]
if licenses:
# Associate license
vid.license = License.objects.get(slug=licenses[0])
pic = os.path.join(dirname, 'thumbnail.jpg')
if not os.path.exists(pic):
pic = os.path.join(dirname, 'imagecache', '00.png')
if not os.path.exists(pic):
pic = os.path.join(dirname, 'imagecache', '000.png')
if os.path.exists(pic):
with open(pic, 'rb') as f:
vid.thumbnail.save(os.path.basename(pic), File(f))
if not vid.activity.thumbnail:
# Use same thumbnail
with open(pic, 'rb') as f:
vid.activity.thumbnail.save(os.path.basename(pic), File(f))
vid.activity.save()
if not vid.activity.chapter.thumbnail:
# Use same thumbnail
with open(pic, 'rb') as f:
vid.activity.chapter.thumbnail.save(os.path.basename(pic), File(f))
vid.activity.chapter.save()
if not vid.activity.chapter.channel.thumbnail:
# Use same thumbnail
with open(pic, 'rb') as f:
vid.activity.chapter.channel.thumbnail.save(os.path.basename(pic), File(f))
vid.activity.chapter.channel.save()
vid.save()
# Read data.json if available
packageurl = data.get('dataurl', os.path.join(dirname, 'data.json'))
if packageurl.startswith('http') or os.path.exists(packageurl):
self.stdout.write("Loading data from %s" % packageurl)
f = urllib.urlopen(packageurl.replace('https', 'http'))
try:
package = json.loads("".join(f.readlines()))
except ValueError:
package = {}
f.close()
if not package:
print "************* Empty package: %s" % packageurl
return
# Update video duration
vid.duration = package['medias'][0]['meta']['dc:duration'] / 1000.0
slug = package['medias'][0]['id']
if re.match('^\d', slug):
# id starting with a number. Add a "m" (media) prefix.
slug = "m" + slug
if Video.objects.filter(slug=slug).exists():
self.stdout.write("Duplicate video slug: " + slug)
slug = slugify(title)
else:
vid.slug = slug
vid.save()
ats = {}
for atjson in package['annotation-types']:
sl = slugify(atjson['dc:title'])
try:
at = AnnotationType.objects.get(slug=sl)
except AnnotationType.DoesNotExist:
# Create the AnnotationType matching dc:title/slug
at = AnnotationType(creator=adminuser,
created=convert_date(dateutil.parser.parse(atjson['dc:created'])),
title=atjson['dc:title'],
slug=sl,
description=atjson['dc:description'])
at.save()
ats[atjson['id']] = at
if 'Notes' not in ats:
at = AnnotationType.objects.get_or_create(title="Notes",
slug=slugify("Notes"),
defaults={
'creator': adminuser,
'description': "User note"
})[0]
ats["Notes"] = at
self.stdout.write("Copying %d annotations" % len(package['annotations']))
for a in package['annotations']:
if a['meta']['id-ref'] == "at_contributions":
at = ats['Notes']
else:
at = ats[a['meta']['id-ref']]
self.stdout.write(".", ending="")
self.stdout.flush()
tags = []
creator = get_user(a['meta']['dc:creator'])
contributor = get_user(a['meta']['dc:contributor'])
title = a['content']['title']
description = a['content']['description']
group = get_group(a['meta']['id-ref'])
visibility = VISIBILITY_PRIVATE
if group is not None:
visibility = VISIBILITY_GROUP
# Use "Notes" type since we now have the group information
at = ats['Notes']
if at.title not in ('Quiz', 'QuizPerso', TYPE_SLIDES, 'Partie'):
description = description or title
title = ""
if at.title in ('Quiz', TYPE_SLIDES, 'Partie'):
visibility = VISIBILITY_PUBLIC
creator = contributor = get_user('coco')
if 'public' in at.title.lower():
visibility = VISIBILITY_PUBLIC
at = ats['Notes']
m = re.match("^\[([\w-]+,)?(\w+)](.*)", description)
if m:
creator = contributor = get_user(m.group(2), context=a['meta']['id-ref'])
if m.group(1) is not None:
tags.append(m.group(1).strip(',').strip().lower())
description = m.group(3).strip()
if group and not creator in group.user_set.all():
group.user_set.add(creator)
an = Annotation(creator=creator,
contributor=contributor,
created=convert_date(dateutil.parser.parse(a['meta']['dc:created'])),
modified=convert_date(dateutil.parser.parse(a['meta']['dc:modified'])),
annotationtype=at,
video=vid,
begin=long(a['begin']) / 1000.0,
end=long(a['end']) / 1000.0,
title=title,
visibility=visibility,
group=group,
description=description)
# FIXME: handle tags
if 'data' in a['content']:
an.contenttype = a['content'].get('mimetype', 'application/json')
an.contentdata = json.dumps(a['content']['data'])
elif 'level' in a['content']:
an.contenttype = 'application/json'
an.contentdata = json.dumps({'level': a['content']['level']})
elif at.title == TYPE_SLIDES:
# Enforce level 1
an.contenttype = 'application/json'
an.contentdata = json.dumps({'level': 1})
if 'img' in a['content']:
img = a['content']['img']['src']
if ('note.png' not in img and 'contribution.svg' not in img):
pic = os.path.join(dirname, a['content']['img']['src'])
if os.path.exists(pic):
with open(pic, 'rb') as f:
an.thumbnail.save(os.path.basename(pic), File(f))
an.save()
for t in tags:
an.tags.add(t.lower())
