<?php
-global $wgSpecialPages, $wgWhitelistAccount;
-
-# Special:Userlogin is a peculiar case: If the site options tell us to allow only sysops to
-# create new accounts, we want it displayed under "For sysop use only". If it's for developers
-# only, display it there. If anyone can create an account, we don't want it listed at all,
-# because there would already be a "create account or login" link in the top-right corner of
-# the page. If nobody can create an account, we don't want it listed either.
-
-$userlogin_listed = true;
-$userlogin_restr = '';
-if ( $wgWhitelistAccount && $wgWhitelistAccount['sysop'] && !$wgWhitelistAccount['user'] )
- $userlogin_restr = 'sysop';
-else if ( $wgWhitelistAccount && $wgWhitelistAccount['developer'] &&
- !$wgWhitelistAccount['sysop'] && !$wgWhitelistAccount['user'] )
- $userlogin_restr = 'developer';
-else
- $userlogin_listed = false;
-
-$wgSpecialPages = array(
- "Userlogin" => new SpecialPage( "Userlogin", $userlogin_restr, $userlogin_listed ),
+# SpecialPage: handling special pages and lists thereof
+
+# $wgSpecialPages is a list of all SpecialPage objects. These objects should be derived from
+# SpecialPage. At a minimum, they must have an execute() method, which sends the HTML for the
+# special page to $wgOut. The parent object has an execute() method which distributes the call
+# to the historical global functions.
+
+# To add a special page at run-time, use SpecialPage::addPage(). DO NOT add objects directly to
+# this list.
+
+global $wgSpecialPages;
+
+/* private */ $wgSpecialPages = array(
+ "Userlogin" => new SpecialPage( "Userlogin" ),
"Userlogout" => new UnlistedSpecialPage( "Userlogout" ),
"Preferences" => new SpecialPage( "Preferences" ),
"Watchlist" => new SpecialPage( "Watchlist" ),
"Asksql" => new SpecialPage( "Asksql", "sysop" ),
"Undelete" => new SpecialPage( "Undelete", "sysop" ),
"Makesysop" => new SpecialPage( "Makesysop", "sysop" ),
+
+# Special:Import is half-written
# "Import" => new SpecialPage( "Import", "sysop" ),
+
"Lockdb" => new SpecialPage( "Lockdb", "developer" ),
"Unlockdb" => new SpecialPage( "Unlockdb", "developer" )
));
+# Parent special page class, also static functions for handling the special page list
class SpecialPage
{
- /* private */ var $mName, $mRestriction, $mListed, $mFunction, $mFile;
+ /* private */ var $mName; # The name of the class, used in the URL. Also used for the default
+ # <h1> heading, see getDescription()
+ /* private */ var $mRestriction; # Minimum user level required to access this page, or ""
+ # for anyone. Also used to categorise the pages in
+ # Special:Specialpages
+ /* private */ var $mListed; # Listed in Special:Specialpages?
+ /* private */ var $mFunction; # Function name called by the default execute()
+ /* private */ var $mFile; # File which needs to be included before the function above can be called
+ # Add a page to the list of valid special pages
+ # $obj->execute() must send HTML to $wgOut then return
+ # Use this for a special page extension
/* static */ function addPage( &$obj ) {
global $wgSpecialPages;
$wgSpecialPages[$obj->mName] = $obj;
}
+ # Remove a special page from the list
+ # Occasionally used to disable expensive or dangerous special pages
/* static */ function removePage( $name ) {
global $wgSpecialPages;
unset( $wgSpecialPages[$name] );
}
+ # Find the object with a given name and return it (or NULL)
/* static */ function &getPage( $name ) {
global $wgSpecialPages;
if ( array_key_exists( $name, $wgSpecialPages ) ) {
}
# Return categorised listable special pages
+ # Returns a 2d array where the first index is the restriction name
/* static */ function getPages() {
global $wgSpecialPages;
$pages = array(
return $pages;
}
- # Execute a special page path, which may contain slashes
+ # Execute a special page path, which may contain parameters, e.g. Special:Name/Params
+ # $title should be a title object
+ # Extracts the special page name and call the execute method, passing the parameters
/* static */ function executePath( &$title ) {
global $wgSpecialPages, $wgOut, $wgTitle;
}
}
+ # Default constructor for special pages
+ # Derivative classes should call this from their constructor
+ # $name - the name of the special page, as seen in links and URLs
+ # $restriction - the minimum user level required, e.g. "sysop" or "developer".
+ #
+ # Note that if the user does not have the required level, an error message will
+ # be displayed by the default execute() method, without the global function ever
+ # being called.
+ #
+ # If you override execute(), you can recover the default behaviour with userCanExecute()
+ # and displayRestrictionError()
+ #
+ # $listed - whether the page is listed in Special:Specialpages
+ # $function - the function called by execute(). By default it is constructed from $name
+ # $file - the file which is included by execute(). It is also constructed from $name by default
+ #
function SpecialPage( $name = "", $restriction = "", $listed = true, $function = false, $file = "default" ) {
$this->mName = $name;
$this->mRestriction = $restriction;
}
}
+ # Accessor functions, see the descriptions of the associated variables above
function getName() { return $this->mName; }
function getRestriction() { return $this->mRestriction; }
function isListed() { return $this->mListed; }
+ # Checks if the given user (identified by an object) can execute this special page (as
+ # defined by $mRestriction)
function userCanExecute( &$user ) {
if ( $this->mRestriction == "" ) {
return true;
}
}
}
-
+
+ # Output an error message telling the user what access level they have to have
function displayRestrictionError() {
global $wgOut;
if ( $this->mRestriction == "developer" ) {
}
}
+ # Sets headers - this should be called from the execute() method of all derived classes!
function setHeaders() {
global $wgOut;
$wgOut->setArticleRelated( false );
$wgOut->setPageTitle( $this->getDescription() );
}
+ # Default execute method
+ # Checks user permissions, calls the function given in mFunction
function execute( $par ) {
global $wgUser, $wgOut, $wgTitle;
}
}
+ # Returns the name that goes in the <h1> in the special page itself, and also the name that
+ # will be listed in Special:Specialpages
+ #
+ # Derived classes can override this, but usually it is easier to keep the default behaviour.
+ # Messages can be added at run-time, see MessageCache.php
function getDescription() {
return wfMsg( strtolower( $this->mName ) );
}
+ # Get a self-referential title object
function getTitle() {
return Title::makeTitle( NS_SPECIAL, $this->mName );
}
+ # Set whether this page is listed in Special:Specialpages, at run-time
function setListed( $listed ) {
return wfSetVar( $this->mListed, $listed );
}
}
+# Shortcut to construct a special page which is unlisted by default
class UnlistedSpecialPage extends SpecialPage
{
function UnlistedSpecialPage( $name, $restriction = "", $function = false, $file = "default" ) {