Youtube changed something

[GoogleCodeExporter]

What steps will reproduce the problem?
1. open a user's feed
2. try and download any video
3.

What is the expected output? What do you see instead?
you expect a video download.
you get almost all the times a 403 forbidden

What version of the product are you using? On what operating system?
version 3.0.1.9.
on windows 8.

Please provide any additional information below.
they changed the visual side of the site.
i guess it has some effect.

Original issue reported on code.google.com by I3.A.R....@gmail.com on 21 Dec 2012 at 4:30

[GoogleCodeExporter]

Any word on this? It's been over a month.. =(

Just a matter of not having the time to take a look, or has someone taken a 
look and the problem is more challenging this time around?

Original comment by da...@davidrehm.com on 21 Jan 2013 at 11:21

[GoogleCodeExporter]

I don't think anyone with the know-how has taken a look at the issue yet. There 
are no recent clones, so yeah. Not many people using rsshandler these days I 
guess.

Original comment by blah238@gmail.com on 21 Jan 2013 at 11:23

[GoogleCodeExporter]

I have the same issue on Debian Squeeze.

Any suggestion on how to help to solve the problem?

Original comment by nico...@gmail.com on 26 Jan 2013 at 7:56

Attachments:

• oneofthefails.txt

[GoogleCodeExporter]

Getting the same error... any update?

Original comment by dylanlme...@gmail.com on 28 Jan 2013 at 12:24

[GoogleCodeExporter]

Sorry for not being around lately. I've taken a quick look into this, and it 
seems like the regular expression misses the signature parameter on some videos 
(Sorry I'm bad at regular expressions), and YT doesn't respond to requests that 
doesn't contain the signature. The log posted by nicox82 confirms my suspicion. 
I'll try to dig deeper and provide a fix within a week.

If you could confirm that 403 happens only when the url does not contain the 
signature parameter that would be great!

Original comment by MotaSay on 28 Jan 2013 at 7:37

• Changed state: Accepted

[GoogleCodeExporter]

I tested it now twice, and both times no download happened, always 403 error, 
but which signature parameter do you mean? maybe i can help somehow?

i attach both tries, also included the corresponding trace of podget

Original comment by nico...@gmail.com on 29 Jan 2013 at 8:32

Attachments:

• try1-podget.txt
• try1-rsshandler.txt
• try2-podget.txt
• try2-rsshandler.txt

[GoogleCodeExporter]

Thank you for the feedback. The signature parameter is a URL parameter that 
should be in the final video url (A.K.A the redirect) that's generated by RSS 
Handler. Anyway, I've already solved the problem of parsing the parameters.

Unfortunately I'm still unable to completely get rid of the 403 error. YT are 
definitely making the job much harder. They don't use a static format for the 
URLs anymore. Each time you request the same video page you'll get a different 
result. I'm still working on it, and hopefully I'll be able to solve this by 
Monday.

Original comment by MotaSay on 29 Jan 2013 at 10:20

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

Hey guys, sorry for taking so long! I think the problem is solved now (it was 
easy to solve too!), unfortunately I don't have the time to test it. So here 
are the download links for the jar/app bundles, and if all goes well I'll push 
the code and close this issue. If anyone needs the code instead of the 
executables please let me know.

Jar: https://dl.dropbox.com/u/1693311/temp/RSSHandler-3.0.1.11.zip
Mac app bundle: 
https://dl.dropbox.com/u/1693311/temp/RSSHandler-3.0.1.11.app.zip

Please report any issue you may find, as soon as possible. Thanks!

Original comment by MotaSay on 4 Feb 2013 at 8:07

[GoogleCodeExporter]

I would love the actual code if it isn't too much of a hassle.
Also, what was the problem? If it's hard to find but easy to solve it's
probably interesting...

Original comment by I3.A.R....@gmail.com on 4 Feb 2013 at 11:09

[GoogleCodeExporter]

It works!

Original comment by dylanlme...@gmail.com on 5 Feb 2013 at 5:42

[GoogleCodeExporter]

Great! I will push the code within the next 12 hours.

The problem was a parsing issue. We used to extract the URLs by looking for a 
pattern similar to (url=http...\u0026quality), this used to work because the 
signature was part of this pattern. But now they've moved the signature out of 
this pattern, so we need to extract the suitable signature for each URL, and 
that was easy to do. Because each URL now consists of 6 chunks separated by 
"\u0026", one of which is the signature and another is the URL, and all we have 
to do is just to append the signature to the URL. The relevant part in the code 
is encapsulated in the VideoURL class (inside the VideoServlet).

Original comment by MotaSay on 5 Feb 2013 at 10:14

[GoogleCodeExporter]

Also confirmed working here. Thanks Mota!

Original comment by blah238@gmail.com on 5 Feb 2013 at 2:42

[GoogleCodeExporter]

Glad to contribute to this awesome app! I've updated the code to try to make it 
work in the future in case YT has changed the source again, these updates do 
not have any effect now, but may help in resisting future changes. The updated 
bundles will be on the downloads page within 24 hours.

Original comment by MotaSay on 5 Feb 2013 at 4:33

[GoogleCodeExporter]

This issue was closed by revision ac3b1f93920b.

Original comment by MotaSay on 5 Feb 2013 at 4:38

• Changed state: Fixed