{"id":1218,"date":"2010-01-06T09:00:48","date_gmt":"2010-01-06T08:00:48","guid":{"rendered":"http:\/\/www.matthijskamstra.nl\/blog\/?p=1218"},"modified":"2010-07-17T15:35:53","modified_gmt":"2010-07-17T14:35:53","slug":"twitter-rss-reader-part-2","status":"publish","type":"post","link":"https:\/\/www.matthijskamstra.nl\/blog\/2010\/01\/06\/twitter-rss-reader-part-2\/","title":{"rendered":"Twitter RSS reader – part 2"},"content":{"rendered":"
This is a “must-read” update for twitter rss reader in flash as3<\/a>.<\/div>\n

\"\"
\nread here<\/a> the complete (dutch) error message<\/em><\/p>\n

Stupid, stupid, stupid, I already knew this: Flash cross-domain security<\/a><\/strong>.
\nWhich simple says that it’s not allowed to “get” anything from another website unless the server has a crossdomain.xml<\/code><\/a>.
\nThe nasty part is that, while you are testing in Flash IDE nothing goes wrong. So I only bumped into this when I put it on my server…<\/p>\n

So what to do?<\/p>\n

    \n
  1. Ask Twitter to change there crossdomain.xml<\/code> and add my domain…… (is this really an option?)<\/li>\n
  2. Find something around the crossdomain security from Flash<\/li>\n<\/ol>\n

    Luckily solution two is the easiest one: use a proxy to get the data we want.
    \nBecause PHP doesn’t have the same restrictions as Flash has we will be using a proxy.php. <\/p>\n

    This is how it works: Flash wants a crossdomain.xml<\/code> if you “get” data from another server, but if you “get” data from the same server there is no problem. So we will be asking the proxy.php<\/code> to “get” the xml\/rss and serve it to Flash.<\/p>\n

    So instead of loading the data directly from Twitter
    \nhttp:\/\/twitter.com\/statuses\/user_timeline\/27657030.rss<\/code>
    \nWe will be using the proxy instead
    \nhttp:\/\/yoursite.com\/xml_proxy.php?url=http:\/\/twitter.com\/statuses\/user_timeline\/27657030.rss<\/code><\/p>\n

    I didn’t write the proxy myself:
    \nThe proxy that I used can be found here:     http:\/\/xmlrpcflash.mattism.com\/proxy_info.php<\/a> (it has some extra explanation about the subject )
    \nThis proxy can be use for all sorts of xml, and any server.<\/p>\n

    As always I’m reinventing the wheel: this group needed a specific solution but is nice to read more about it:
    \n    http:\/\/woveninteractive.net\/2009\/02\/twitter-in-flash-getting-past-the-securityerrorevent\/<\/a>
    \nThey wrote something similar, but a proxy more specific suited for twitter and the use of     twitterscript<\/a>.<\/p>\n

    Update #1:<\/strong> I found another proxy.php (I really don’t think you need another, but choices are nice \ud83d\ude00 ).
    \n    PHP Proxy Script for cross-domain requests<\/a>\n<\/div>\n
    \nSorry for the dutch error… I have a dutch version of XP (not my choice)
    \n
    \nError #2044: Niet-afgehandelde securityError:. text=Error #2048: Schending van beveiligingssandbox: http:\/\/emceekay.nl\/paper\/flash\/twttr.swf kan geen gegevens laden van http:\/\/twitter.com\/statuses\/user_timeline\/27657030.rss.
    \n\tat nl.emceekay.twttr::TwttrBase\/getFeed()
    \n\tat nl.emceekay.twttr::TwttrMain()
    \n<\/code>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    This is a “must-read” update for twitter rss reader in flash as3. read here the complete (dutch) error message Stupid, stupid, stupid, I already knew this: Flash cross-domain security. Which simple says that it’s not allowed to “get” anything from another website unless the server has a crossdomain.xml. The nasty part is that, while you […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,3],"tags":[408,398,337,338],"class_list":["post-1218","post","type-post","status-publish","format-standard","hentry","category-as3","category-flash","tag-as3","tag-flash","tag-proxy","tag-proxy-php"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t