--[[ $Id$ Copyright ? 2007 the VideoLAN team This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.--]]-- Helper function to get a parameter's value in a URLfunction get_url_param( url, name )    local _, _, res = string.find( url, "[&?]"..name.."=([^&]*)" )    return resendfunction get_arturl( path, video_id )    if string.match( vlc.path, "iurl=" ) then        return vlc.strings.decode_uri( get_url_param( vlc.path, "iurl" ) )    end    if not arturl then        return "http://img.youtube.com/vi/"..video_id.."/default.jpg"    endend-- Probe function.function probe()    if vlc.access ~= "http" then        return false    end    youtube_site = string.match( string.sub( vlc.path, 1, 8 ), "youtube" )    if not youtube_site then        -- FIXME we should be using a builtin list of known youtube websites        -- like "fr.youtube.com", "uk.youtube.com" etc..        youtube_site = string.find( vlc.path, ".youtube.com" )        if youtube_site == nil then            return false        end    end    return (  string.match( vlc.path, "watch%?v=" ) -- the html page            or string.match( vlc.path, "watch_fullscreen%?video_id=" ) -- the fullscreen page            or string.match( vlc.path, "p.swf" ) -- the (old?) player url            or string.match( vlc.path, "jp.swf" ) -- the (new?) player url (as of 24/08/2007)            or string.match( vlc.path, "player2.swf" ) ) -- another player urlend-- Parse function.function parse()    if string.match( vlc.path, "watch%?v=" )    then -- This is the HTML page's URL        while true do            -- Try to find the video's title            line = vlc.readline()            if not line then break end            if string.match( line, "<meta name=\"title\"" ) then                _,_,name = string.find( line, "content=\"(.-)\"" )            end            if string.match( line, "<meta name=\"description\"" ) then               -- Don't ask me why they double encode ...                _,_,description = vlc.strings.resolve_xml_special_chars(vlc.strings.resolve_xml_special_chars(string.find( line, "content=\"(.-)\"" )))            end            if string.match( line, "subscribe_to_user=" ) then                _,_,artist = string.find( line, "subscribe_to_user=([^&]*)" )            end            -- OLD: var swfArgs = {hl:'en',BASE_YT_URL:'http://youtube.com/',video_id:'XPJ7d8dq0t8',l:'292',t:'OEgsToPDskLFdOYrrlDm3FQPoQBYaCP1',sk:'0gnr-AE6QZJEZmCMd3lq_AC'};            -- NEW: var swfArgs = { "BASE_YT_URL": "http://youtube.com", "video_id": "OHVvVmUNBFc", "l": 88, "sk": "WswKuJzDBsdD6oG3IakCXgC", "t": "OEgsToPDskK3zO44y0QN8Fr5ZSAZwCQp", "plid": "AARGnwWMrmGkbpOxAAAA4AT4IAA", "tk": "mEL4E7PqHeaZp5OG19NQThHt9mXJU4PbRTOw6lz9osHi4Hixp7RE1w=="};            if string.match( line, "swfArgs" ) and string.match( line, "video_id" ) then                if string.match( line, "BASE_YT_URL" ) then                    _,_,base_yt_url = string.find( line, "\"BASE_YT_URL\": \"(.-)\"" )                end                _,_,t = string.find( line, "\"t\": \"(.-)\"" )                -- vlc.msg.err( t )                -- video_id = string.gsub( line, ".*&video_id:'([^']*)'.*", "%1" )            end            if name and description and artist --[[and video_id]] then break end        end        if not video_id then            video_id = get_url_param( vlc.path, "v" )        end        if not base_yt_url then            base_yt_url = "http://youtube.com/"        end        arturl = get_arturl( vlc.path, video_id )        if t then            return { { path = base_yt_url .. "get_video?video_id="..video_id.."&t="..t; name = name; description = description; artist = artist; arturl = arturl } }        else            -- This shouldn't happen ... but keep it as a backup.            return { { path = "http://www.youtube.com/v/"..video_id; name = name; description = description; artist = artist; arturl = arturl } }        end    else -- This is the flash player's URL        if string.match( vlc.path, "title=" ) then            name = get_url_param( vlc.path, "title" )        end        video_id = get_url_param( vlc.path, "video_id" )        arturl = get_arturl( vlc.path, video_id )        if not string.match( vlc.path, "t=" ) then            -- This sucks, we're missing "t" which is now mandatory. Let's            -- try using another url            return { { path = "http://www.youtube.com/v/"..video_id; name = name; arturl = arturl } }        end        return { { path = "http://www.youtube.com/get_video.php?video_id="..video_id.."&t="..get_url_param( vlc.path, "t" ); name = name; arturl = arturl } }    endend