'CanonicalNamespaces': For extensions adding their own namespaces or altering
the defaults.
+Note that if you need to specify namespace protection or content model for
+a namespace that is added in a CanonicalNamespaces hook handler, you
+should do so by altering $wgNamespaceProtection and
+$wgNamespaceContentModels outside the handler, in top-level scope. The
+point at which the CanonicalNamespaces hook fires is too late for altering
+these variables. This applies even if the namespace addition is
+conditional; it is permissible to declare a content model and protection
+for a namespace and then decline to actually register it.
&$namespaces: Array of namespace numbers with corresponding canonical names
'CategoryAfterPageAdded': After a page is added to a category.
$ip: IP being check
$result: Change this value to override the result of wfIsTrustedProxy()
+'IsUploadAllowedFromUrl': Override the result of UploadFromUrl::isAllowedUrl()
+$url: URL used to upload from
+&$allowed: Boolean indicating if uploading is allowed for given URL
+
'isValidEmailAddr': Override the result of User::isValidEmailAddr(), for
instance to return false if the domain name doesn't match your organization.
$addr: The e-mail address entered by the user
&$query_options: array of options for the database request
&$select: Array of columns to select
+'SpecialResetTokensTokens': Called when building token list for
+SpecialResetTokens.
+&$tokens: array of token information arrays in the format of
+ array( 'preference' => '<preference-name>', 'label-message' => '<message-key>' )
+
'SpecialSearchCreateLink': Called when making the message to create a page or
go to the existing page.
$t: title object searched for
$doExpensiveQueries: Whether to do expensive DB queries
$short: Whether to return immediately on first error
+'TitleGetEditNotices': Allows extensions to add edit notices
+$title: The Title object for the page the edit notices are for
+$oldid: Revision ID that the edit notices are for (or 0 for latest)
+&$notices: Array of notices. Keys are i18n message keys, values are parseAsBlock()ed messages.
+
'TitleGetRestrictionTypes': Allows extensions to modify the types of protection
that can be applied.
$title: The title in question.
$ip: User's IP address
&$blocked: Whether the user is blocked, to be modified by the hook
+'UserIsEveryoneAllowed': Check if all users are allowed some user right; return
+false if a UserGetRights hook might remove the named right.
+$right: The user right being checked
+
'UserLoadAfterLoadFromSession': Called to authenticate users on external or
environmental means; occurs after session is loaded.
$user: user object being loaded