def entry(self):
"""
Connects to Youtube Api and retrieves the video entry object
Return:
gdata.youtube.YouTubeVideoEntry
"""
api = Api()
api.authenticate()
return api.fetch_video(self.video_id)
def upload(request):
"""
Displays an upload form
Creates upload url and token from facebook api and uses them on the form
"""
# Get the optional parameters
title = request.GET.get(
"title",
"%s's video on %s" % (request.user.username, request.get_host()))
description = request.GET.get("description", "")
keywords = request.GET.get("keywords", "")
# Try to create post_url and token to create an upload form
try:
api = Api()
# upload method needs authentication
api.authenticate()
# Customize following line to your needs, you can add description, keywords or developer_keys
# I prefer to update video information after upload finishes
data = api.upload(title,
description=description,
keywords=keywords,
access_control=AccessControl.Unlisted)
except ApiError as e:
# An api error happened, redirect to homepage
messages.add_message(request, messages.ERROR, e.message)
return HttpResponseRedirect("/")
except:
# An error happened, redirect to homepage
messages.add_message(
request, messages.ERROR,
_('An error occurred during the upload, Please try again.'))
return HttpResponseRedirect("/")
# Create the form instance
form = YoutubeUploadForm(initial={"token": data["youtube_token"]})
protocol = 'https' if request.is_secure() else 'http'
import os
next_url = "".join([
protocol, ":", os.sep, os.sep,
request.get_host(),
reverse("django_youtube.views.upload_return"), os.sep
])
return render_to_response("django_youtube/upload.html", {
"form": form,
"post_url": data["post_url"],
"next_url": next_url
},
context_instance=RequestContext(request))
def delete(self, *args, **kwargs):
"""
Deletes the video from youtube
Raises:
OperationError
"""
api = Api()
# Authentication is required for deletion
api.authenticate()
# Send API request, raises OperationError on unsuccessful deletion
api.delete_video(self.video_id)
# Call the super method
return super(Video, self).delete(*args, **kwargs)
def save(self, *args, **kwargs):
"""
Syncronize the video information on db with the video on Youtube
The reason that I didn't use signals is to avoid saving the video instance twice.
"""
# if this is a new instance add details from api
if not self.id:
# Connect to api and get the details
entry = self.entry()
# Set the details
self.title = entry.media.title.text
self.description = entry.media.description.text
self.keywords = entry.media.keywords.text
self.youtube_url = entry.media.player.url
self.swf_url = entry.GetSwfUrl()
if entry.media.private:
self.access_control = AccessControl.Private
else:
self.access_control = AccessControl.Public
# Save the instance
super(Video, self).save(*args, **kwargs)
# show thumbnails
for thumbnail in entry.media.thumbnail:
t = Thumbnail()
t.url = thumbnail.url
t.video = self
t.save()
else:
# updating the video instance
# Connect to API and update video on youtube
api = Api()
# update method needs authentication
api.authenticate()
# Update the info on youtube, raise error on failure
api.update_video(self.video_id, self.title, self.description,
self.keywords, self.access_control)
# Save the model
return super(Video, self).save(*args, **kwargs)
def check_video_availability(request, video_id):
"""
Controls the availability of the video. Newly uploaded videos are in processing stage.
And others might be rejected.
Returns:
json response
"""
# Check video availability
# Available states are: processing
api = Api()
api.authenticate()
availability = api.check_upload_status(video_id)
if availability is not True:
data = {'success': False}
else:
data = {'success': True}
return HttpResponse(json.dumps(data), content_type="application/json")
def video(request, video_id):
"""
Displays a video in an embed player
"""
# Check video availability
# Available states are: processing
api = Api()
api.authenticate()
availability = api.check_upload_status(video_id)
if availability is not True:
# Video is not available
video = Video.objects.filter(video_id=video_id).get()
state = availability["upload_state"]
# Add additional states here. I'm not sure what states are available
if state == "failed" or state == "rejected":
return render_to_response("django_youtube/video_failed.html", {
"video": video,
"video_id": video_id,
"message": _("Invalid video."),
"availability": availability
},
context_instance=RequestContext(request))
else:
return render_to_response(
"django_youtube/video_unavailable.html", {
"video": video,
"video_id": video_id,
"message": _("This video is currently being processed"),
"availability": availability
},
context_instance=RequestContext(request))
video_params = _video_params(request, video_id)
return render_to_response("django_youtube/video.html",
video_params,
context_instance=RequestContext(request))
def direct_upload(request):
"""
direct upload method
starts with uploading video to our server
then sends the video file to youtube
param:
(optional) `only_data`: if set, a json response is returns i.e. {'video_id':'124weg'}
return:
if `only_data` set, a json object.
otherwise redirects to the video display page
"""
if request.method == "POST":
try:
form = YoutubeDirectUploadForm(request.POST, request.FILES)
# upload the file to our server
if form.is_valid():
uploaded_video = form.save()
# send this file to youtube
api = Api()
api.authenticate()
video_entry = api.upload_direct(
uploaded_video.file_on_server.path,
"Uploaded video from zuqqa")
# get data from video entry
swf_url = video_entry.GetSwfUrl()
youtube_url = video_entry.id.text
# getting video_id is tricky, I can only reach the url which
# contains the video_id.
# so the only option is to parse the id element
# https://groups.google.com/forum/?fromgroups=#!topic/youtube-api-gdata/RRl_h4zuKDQ
url_parts = youtube_url.split("/")
url_parts.reverse()
video_id = url_parts[0]
# save video_id to video instance
video = Video()
video.user = request.user
video.video_id = video_id
video.title = 'tmp video'
video.youtube_url = youtube_url
video.swf_url = swf_url
video.save()
# delete the uploaded video instance
uploaded_video.delete()
# return the response
return_only_data = request.GET.get('only_data')
if return_only_data:
return HttpResponse(json.dumps({"video_id": video_id}))
else:
# Redirect to the video page or the specified page
try:
next_url = settings.YOUTUBE_UPLOAD_REDIRECT_URL
except AttributeError:
next_url = reverse("django_youtube.views.video",
kwargs={"video_id": video_id})
return HttpResponseRedirect(next_url)
except:
import sys
logger.error("Unexpected error: %s - %s" %
(sys.exc_info()[0], sys.exc_info()[1]))
# @todo: proper error management
return HttpResponse("error happened")
form = YoutubeDirectUploadForm()
return render_to_response("django_youtube/direct-upload.html",
{"form": form},
context_instance=RequestContext(request))
