Adds support for passing a referer.

[ghost]

I noticed that Vimeo supports embedding videos that only can be accessed when watched via a specified domain. To enable users to download these videos, I added referer passing to youtube-dl. This way you can pass the required referer url to youtube-dl and the video download will succeed.

[jaimeMF]

Could you post an example video?

[ghost]

Yes, this video:
http://player.vimeo.com/video/36845416

Can only be embedded here:
http://guru.ijoomla.com/easyblog/entry/how-to-keep-your-videos-private-with-vimeo/

youtube_dl bjorn$ ./main.py http://player.vimeo.com/video/36845416
[vimeo] 36845416: Downloading webpage
[vimeo] 36845416: Extracting information
ERROR: unable to extract info section

youtube_dl bjorn$ ./main.py http://player.vimeo.com/video/36845416 --referer http://guru.ijoomla.com/easyblog/entry/how-to-keep-your-videos-private-with-vimeo/
[vimeo] 36845416: Downloading webpage
[vimeo] 36845416: Extracting information
[vimeo] 36845416: Downloading H264 file at hd quality
[download] Destination: 36845416.mp4
[download] 100.0% of 9.66MiB at 409.51KiB/s ETA 00:00

[jaimeMF]

Ok, it works.
Apart from inspecting the html source of the page, is there some method for getting the video link?
By the way, the video title is quite ironic.

[ghost]

No, that would require traversing the HTML page. I tested youtube-dl on a random page with a embedded youtube video and in that case the video does not download either. Downloading embedded videos via random urls would be a separate feature imho.

I found this piece of text especially amusing "Today, I will explain how to keep your videos private so that no one can download them or find them on other websites." :)

[jaimeMF]

I meant what a user can do when he find that page, since there's no direct link to the video.
And yes, searching embedded videos could help, but that's a separate issue.

[jaimeMF]

And you have fixed #397, well done!

[ghost]

Awesome :) A user would need to look at the html source of the page to find the link, yes.

[FiloSottile]

Can't we give some meaningful error message?
And maybe I would also explain what it's for in --help, like "for domain restriction" (worded better)...

[jaimeMF]

Yes, without the --refereroption the received webpage contains the string: "The creator of this video has not given you permission to embed it on this domain.". Is ERROR: The author has restricted the access to this video, try with the "--referer" option a good message?

[ghost]

Yeah, that seems like a good message. Shall I try to implement this or do you think you can add this yourself easily?

[jaimeMF]

No, I've already implemented this, unless someone wants something else, I'll merge it today.

[ghost]

Great 👍

[jaimeMF]

Merged, thanks!