Closed Bug 1038444 Opened 10 years ago Closed 9 years ago
Detect Flash ads to be played in Shumway
We can detect Flash ads by looking for common ad dimensions, `clickTag` SWF URLs, or known ad servers.
Yury: Till said you might work on ad detection for whitelisting compatible ads.
Assignee: nobody → ydelendik
Till suggests building a whitelisting infrastructure that can take three things into account: * stage dimensions as specified by the embedding page (compared to industry-standard Flash ad dimensions) * whether a clicktag is supplied as a parameter * the swf's url, matched by a regexp
Tobias ran an offline ad detection test of our archive of 90K SWF files from a crawl of Alexa top sites' home pages. Based on ad-like content dimensions or clickTag URL, 22% of the SWFs were categorized as ads. The other SWFs are probably video players, trackers, site navigation menus, or non-standard ad dimensions. We may still need to implement client-side ad detection even with a Shumway list to avoid playing non-ad SWFs on whitelisted domains. A shavar blocklist to quickly block websites broken by Shumway is probably the most important reason for maintaining a server list. The TP team's script to import Disconnect's blocklist: https://github.com/mozilla-services/shavar-list-creation
Monica strongly recommends that creating a Shumway shavar list block M3, even if the list is just a clone of the TP list to start. The server workflow to import and publish lists is tricky.
I am repurposing this bug for the Shumway dev work to detect ads, whether by SWF dimensions, clickTag, or whitelist. I will split the work to create, approve, and serve the whitelist to separate blocking bugs.
Summary: Create Shumway whitelist or detection of compatible Flash ads → Detect compatible Flash ads
Summary: Detect compatible Flash ads → Detect Flash ads to be played in Shumway
We will need client-side heuristics in addition to the server whitelist. I added "https://pagead2.googlesyndication.com", a common ad server, to my "shumway.swf.whitelist" pref. It broke some non-ad video content: http://www.wired.com/2015/04/binge-guide-orphan-black/ http://www.bbcamerica.com/orphan-black/videos/join-the-clone-club/
Correction: adding googlesyndication.com to the shumway.swf.whitelist pref does NOT break the videos in comment 6. I was testing a number of different whitelist wildcard expressions at the time and I lost track of which expression I was testing.
Status: NEW → RESOLVED
Closed: 9 years ago
Resolution: --- → DUPLICATE
Product: Firefox → Firefox Graveyard
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