[vlc-devel] [PATCH] vimeo playback now hides user agent automatically

[Stephen Parry]

Vimeo injects garbage into pages fetched by any user agent recognisable as
being VLC. Amended parse routine to check the current user agent; if the user
agent is set to VLC then parse returns a replacement playlist entry with the
same url but with an option setting the user agent to something that vimeo will
not trash.
The main playlist parsing loop then re-opens the stream with the correct agent
and calls vimeo.lua a second time; the stream is then parsed as before to get
the actual shortlived video url.
---
 share/lua/playlist/vimeo.lua |  146 ++++++++++++++++++++++--------------------
 1 file changed, 77 insertions(+), 69 deletions(-)

diff --git a/share/lua/playlist/vimeo.lua b/share/lua/playlist/vimeo.lua
index 1200e44..09a71d7 100644
--- a/share/lua/playlist/vimeo.lua
+++ b/share/lua/playlist/vimeo.lua
@@ -42,77 +42,85 @@ end
 
 -- Parse function.
 function parse()
-    _,_,id = string.find( vlc.path, "vimeo.com/([0-9]*)")
-    prefres = get_prefres()
-    ishd = false
-    quality = "sd"
-    codec = nil
-    line2 = ""
-    while true do
-        line = vlc.readline()
-        if not line then break end
-        if string.match( line, "{config:.*") then
-                line2 = line;
-                while not string.match( line2, "}};") do
-                        line2 = vlc.readline()
-                        if not line2 then break end
-                        line = line .. line2;
-                end
+    agent = vlc.var.inherit(nil,"http-user-agent")
+    vlc.msg.dbg("Agent="..agent)
+    if string.match( string.lower(agent), ".*vlc.*" ) then
+        vlc.msg.dbg("Wrong agent...")
+        return { { path = vlc.access .. "://" .. vlc.path; options = {":http-user-agent=Mozilla/5.0" } } }
+    else
+        vlc.msg.dbg("Good agent...")
+        _,_,id = string.find( vlc.path, "vimeo.com/([0-9]*)")
+        prefres = get_prefres()
+        ishd = false
+        quality = "sd"
+        codec = nil
+        line2 = ""
+        while true do
+            line = vlc.readline()
+            if not line then break end
+            if string.match( line, "{config:.*") then
+                    line2 = line;
+                    while not string.match( line2, "}};") do
+                            line2 = vlc.readline()
+                            if not line2 then break end
+                            line = line .. line2;
+                    end
+            end
+            -- Try to find the video's title
+            if string.match( line, "<meta property=\"og:title\"" ) then
+                _,_,name = string.find (line, "content=\"(.*)\">" )
+            end
+            if string.match( line, "{config:.*\"title\":\"" ) then
+                _,_,name = string.find (line, "\"title\":\"([^\"]*)\"," )
+            end
+            -- Try to find image for thumbnail
+            if string.match( line, "<meta property=\"og:image\"" ) then
+                _,_,arturl = string.find (line, "content=\"(.*)\">" )
+            end
+            if string.match( line, "<meta itemprop=\"thumbnailUrl\"" ) then
+                _,_,arturl = string.find (line, "content=\"(.*)\">" )
+            end
+            -- Try to find duration
+            if string.match( line, "{config:.*\"duration\":" ) then
+                _,_,duration = string.find (line, "\"duration\":([0-9]*)," )
+            end
+            -- Try to find request signature (needed to construct video url)
+            if string.match( line, "{config:.*\"signature\":" ) then
+                _,_,rsig = string.find (line, "\"signature\":\"([0-9a-f]*)\"," )
+            end
+            -- Try to find request signature time (needed to construct video url)
+            if string.match( line, "{config:.*\"timestamp\":" ) then
+                _,_,tstamp = string.find (line, "\"timestamp\":([0-9]*)," )
+            end
+            -- Try to find the available codecs
+            if string.match( line, "{config:.*,\"files\":{\"vp6\":" ) then
+                codec = "vp6"
+            end
+            if string.match( line, "{config:.*,\"files\":{\"vp8\":" ) then
+                codec = "vp8"
+            end
+            if string.match( line, "{config:.*,\"files\":{\"h264\":" ) then
+                codec = "h264"
+            end
+            -- Try to find whether video is HD actually
+            if string.match( line, "{config:.*,\"hd\":1" ) then
+                ishd = true
+            end
+            if string.match( line, "{config:.*\"height\":" ) then
+                _,_,height = string.find (line, "\"height\":([0-9]*)," )
+            end
+            if not line2 then break end
         end
-        -- Try to find the video's title
-        if string.match( line, "<meta property=\"og:title\"" ) then
-            _,_,name = string.find (line, "content=\"(.*)\">" )
-        end
-        if string.match( line, "{config:.*\"title\":\"" ) then
-            _,_,name = string.find (line, "\"title\":\"([^\"]*)\"," )
-        end
-        -- Try to find image for thumbnail
-        if string.match( line, "<meta property=\"og:image\"" ) then
-            _,_,arturl = string.find (line, "content=\"(.*)\">" )
-        end
-        if string.match( line, "<meta itemprop=\"thumbnailUrl\"" ) then
-            _,_,arturl = string.find (line, "content=\"(.*)\">" )
-        end
-        -- Try to find duration
-        if string.match( line, "{config:.*\"duration\":" ) then
-            _,_,duration = string.find (line, "\"duration\":([0-9]*)," )
-        end
-        -- Try to find request signature (needed to construct video url)
-        if string.match( line, "{config:.*\"signature\":" ) then
-            _,_,rsig = string.find (line, "\"signature\":\"([0-9a-f]*)\"," )
-        end
-        -- Try to find request signature time (needed to construct video url)
-        if string.match( line, "{config:.*\"timestamp\":" ) then
-            _,_,tstamp = string.find (line, "\"timestamp\":([0-9]*)," )
-        end
-        -- Try to find the available codecs
-        if string.match( line, "{config:.*,\"files\":{\"vp6\":" ) then
-            codec = "vp6"
-        end
-        if string.match( line, "{config:.*,\"files\":{\"vp8\":" ) then
-            codec = "vp8"
-        end
-        if string.match( line, "{config:.*,\"files\":{\"h264\":" ) then
-            codec = "h264"
-        end
-        -- Try to find whether video is HD actually
-        if string.match( line, "{config:.*,\"hd\":1" ) then
-            ishd = true
-        end
-        if string.match( line, "{config:.*\"height\":" ) then
-            _,_,height = string.find (line, "\"height\":([0-9]*)," )
-        end
-        if not line2 then break end
-    end
 
-    if not codec then
-        vlc.msg.err("unable to find codec info")
-        return {}
-    end
+        if not codec then
+            vlc.msg.err("unable to find codec info")
+            return {}
+        end
 
-    if ishd and ( not height or prefres < 0 or prefres >= tonumber(height) ) then
-        quality = "hd"
+        if ishd and ( not height or prefres < 0 or prefres >= tonumber(height) ) then
+            quality = "hd"
+        end
+        path = "http://player.vimeo.com/play_redirect?quality="..quality.."&codecs="..codec.."&clip_id="..id.."&time="..tstamp.."&sig="..rsig.."&type=html5_desktop_local"
+        return { { path = path; name = name; arturl = arturl; duration = duration; } }
     end
-    path = "http://player.vimeo.com/play_redirect?quality="..quality.."&codecs="..codec.."&clip_id="..id.."&time="..tstamp.."&sig="..rsig.."&type=html5_desktop_local"
-    return { { path = path; name = name; arturl = arturl; duration = duration } }
 end
-- 
1.7.9.5