IVLE Video Downloader

A quick hack to download webcasts for offline viewing.

Downloading a single file

$ python3 dl.py <ivle12 cookie here> --webcast "javascript:void(winopenprompt('../bank/media/viewmedia.aspx?MediaItemID=xxx&ChannelID=yyy','470','430','yes','yes'))"

Downloading all files on the IVLE Multimedia page:

$ python3 dl.py <ivle12 cookie here> --medialist "https://ivle.nus.edu.sg/media/multimedia.aspx?ChannelID=xxx&ClickFrom=Outline"

Dependencies

1. Firefox

Known Issues

This is a hack. We don't handle errors.

1. If you have Silverlight installed, the <video> tag won't be generated, and this script will fail. As a workaround, temporarily disable Silverlight. A better solution would be to initialize Selenium with a Firefox profile that has plugins disabled. Feel free to PR this.

Why does the downloaded file only have audio?

Probably the fault of the webcast. (This is why you should actually attend lectures.)

Why Selenium?

Because IVLE's media server uses JavaScript to create the <video> tag.