Last modified: 2005-08-27 19:59:36 UTC
Allow MW extensions to parse incoming URL variables. Possible uses include: * Conveying state from the referring page ** Autosubmission of content (such as the referring page, the title of the referring page, the username of the user on the referring (non-public) page, etc) to the target page ** Modification of the displayed page based on URL variables * Creating wikilinks which redirect dynamically to pages, based on the output of a function of URL variables Of course the list of variables that would be accepted through any variable handle, and the functions that would be allowed to process those variables, should be greatly restricted.
Extensions can pretty much do that everything, or am I missing something?
Extensions can indeed use $wgRequest to grab all the variables they want. (Note that this should never, ever be done in a parser hook extension -- parser extensions must not rely on anything outside their given content and parameters or they will break with caching and with future parser changes. Action hook handlers, special pages, etc can and do legitimately take parameters from the URL or POST variables.)
