-<?
+<?php
# See title.doc
+$wgTitleInterwikiCache = array();
+
+# Title class
+#
+# * Represents a title, which may contain an interwiki designation or namespace
+# * Can fetch various kinds of data from the database, albeit inefficiently.
+#
class Title {
- /* private */ var $mTextform, $mUrlform, $mDbkeyform;
- /* private */ var $mNamespace, $mInterwiki, $mFragment;
- /* private */ var $mArticleID, $mRestrictions, $mRestrictionsLoaded;
- /* private */ var $mPrefixedText;
+ # All member variables should be considered private
+ # Please use the accessor functions
+
+ var $mTextform; # Text form (spaces not underscores) of the main part
+ var $mUrlform; # URL-encoded form of the main part
+ var $mDbkeyform; # Main part with underscores
+ var $mNamespace; # Namespace index, i.e. one of the NS_xxxx constants
+ var $mInterwiki; # Interwiki prefix (or null string)
+ var $mFragment; # Title fragment (i.e. the bit after the #)
+ var $mArticleID; # Article ID, fetched from the link cache on demand
+ var $mRestrictions; # Array of groups allowed to edit this article
+ # Only null or "sysop" are supported
+ var $mRestrictionsLoaded; # Boolean for initialisation on demand
+ var $mPrefixedText; # Text form including namespace/interwiki, initialised on demand
+ var $mDefaultNamespace; # Namespace index when there is no namespace
+ # Zero except in {{transclusion}} tags
+
+#----------------------------------------------------------------------------
+# Construction
+#----------------------------------------------------------------------------
/* private */ function Title()
{
$this->mNamespace = 0;
$this->mRestrictionsLoaded = false;
$this->mRestrictions = array();
+ $this->mDefaultNamespace = 0;
}
- # Static factory methods
- #
- function newFromDBkey( $key )
+ # From a prefixed DB key
+ /* static */ function newFromDBkey( $key )
{
$t = new Title();
$t->mDbkeyform = $key;
else
return NULL;
}
-
- function newFromText( $text )
- {
+
+ # From text, such as what you would find in a link
+ /* static */ function newFromText( $text, $defaultNamespace = 0 )
+ {
$fname = "Title::newFromText";
wfProfileIn( $fname );
-
- # Note - mixing latin1 named entities and unicode numbered
- # ones will result in a bad link.
- $trans = get_html_translation_table( HTML_ENTITIES );
- $trans = array_flip( $trans );
- $text = strtr( $text, $trans );
-
+
+ if( is_object( $text ) ) {
+ wfDebugDieBacktrace( "Called with object instead of string." );
+ }
+ global $wgInputEncoding;
+ $text = do_html_entity_decode( $text, ENT_COMPAT, $wgInputEncoding );
+
$text = wfMungeToUtf8( $text );
- $text = urldecode( $text );
+
+ # What was this for? TS 2004-03-03
+ # $text = urldecode( $text );
$t = new Title();
$t->mDbkeyform = str_replace( " ", "_", $text );
+ $t->mDefaultNamespace = $defaultNamespace;
+
wfProfileOut( $fname );
+ if ( !is_object( $t ) ) {
+ var_dump( debug_backtrace() );
+ }
if( $t->secureAndSplit() ) {
return $t;
} else {
}
}
- function newFromURL( $url )
+ # From a URL-encoded title
+ /* static */ function newFromURL( $url )
{
- global $wgLang, $wgServer, $HTTP_SERVER_VARS;
-
+ global $wgLang, $wgServer;
$t = new Title();
$s = urldecode( $url ); # This is technically wrong, as anything
# we've gotten is already decoded by PHP.
# Kept for backwards compatibility with
# buggy URLs we had for a while...
+ $s = $url;
# For links that came from outside, check for alternate/legacy
# character encoding.
- wfDebug( "Refer: {$_SERVER['HTTP_REFERER']}\n" );
wfDebug( "Servr: $wgServer\n" );
if( empty( $_SERVER["HTTP_REFERER"] ) ||
- strncmp($wgServer, $_SERVER["HTTP_REFERER"], strlen( $wgServer ) ) )
+ strncmp($wgServer, $_SERVER["HTTP_REFERER"], strlen( $wgServer ) ) )
+ {
$s = $wgLang->checkTitleEncoding( $s );
+ } else {
+ wfDebug( "Refer: {$_SERVER['HTTP_REFERER']}\n" );
+ }
$t->mDbkeyform = str_replace( " ", "_", $s );
+ if( $t->secureAndSplit() ) {
+
+ # check that lenght of title is < cur_title size
+ $sql = "SHOW COLUMNS FROM cur LIKE \"cur_title\";";
+ $cur_title_object = wfFetchObject(wfQuery( $sql, DB_READ ));
+
+ preg_match( "/\((.*)\)/", $cur_title_object->Type, $cur_title_size);
+
+ if (strlen($t->mDbkeyform) > $cur_title_size[1] ) {
+ return NULL;
+ }
+
+ return $t;
+ } else {
+ return NULL;
+ }
+ }
+
+ # From a cur_id
+ # This is inefficiently implemented, the cur row is requested but not
+ # used for anything else
+ /* static */ function newFromID( $id )
+ {
+ $fname = "Title::newFromID";
+ $row = wfGetArray( "cur", array( "cur_namespace", "cur_title" ),
+ array( "cur_id" => $id ), $fname );
+ if ( $row !== false ) {
+ $title = Title::makeTitle( $row->cur_namespace, $row->cur_title );
+ } else {
+ $title = NULL;
+ }
+ return $title;
+ }
+
+ # From a namespace index and a DB key
+ /* static */ function makeTitle( $ns, $title )
+ {
+ $t = new Title();
+ $t->mDbkeyform = Title::makeName( $ns, $title );
if( $t->secureAndSplit() ) {
return $t;
} else {
}
}
- function nameOf( $id )
+ function newMainPage()
+ {
+ return Title::newFromText( wfMsg( "mainpage" ) );
+ }
+
+#----------------------------------------------------------------------------
+# Static functions
+#----------------------------------------------------------------------------
+
+ # Get the prefixed DB key associated with an ID
+ /* static */ function nameOf( $id )
{
$sql = "SELECT cur_namespace,cur_title FROM cur WHERE " .
"cur_id={$id}";
return $n;
}
-
- function legalChars()
+ # Get a regex character class describing the legal characters in a link
+ /* static */ function legalChars()
{
- global $wgInputEncoding;
- if( $wgInputEncoding == "utf-8" ) {
- return "-,.()' &;%!?_0-9A-Za-z\\/:\\x80-\\xFF";
- } else {
- # ISO 8859-* don't allow 0x80-0x9F
- #return "-,.()' &;%!?_0-9A-Za-z\\/:\\xA0-\\xFF";
- # But that breaks interlanguage links at the moment. Temporary:
- return "-,.()' &;%!?_0-9A-Za-z\\/:\\x80-\\xFF";
- }
- }
-
- function getInterwikiLink( $key )
- {
- global $wgMemc, $wgDBname;
- $k = "$wgDBname:interwiki:$key";
- $s = $wgMemc->get( $k );
- if( $s !== false ) return $s->iw_url;
+ # Missing characters:
+ # * []|# Needed for link syntax
+ # * % and + are corrupted by Apache when they appear in the path
+ #
+ # Theoretically 0x80-0x9F of ISO 8859-1 should be disallowed, but
+ # this breaks interlanguage links
- $dkey = wfStrencode( $key );
- $query = "SELECT iw_url FROM interwiki WHERE iw_prefix='$dkey'";
- $res = wfQuery( $query, DB_READ, "Title::getInterwikiLink" );
- if(!$res) return "";
-
- $s = wfFetchObject( $res );
- if(!$s) {
- $s = (object)false;
- $s->iw_url = "";
- }
- $wgMemc->set( $k, $s );
- return $s->iw_url;
+ $set = " !\"$&'()*,\\-.\\/0-9:;<=>?@A-Z\\\\^_`a-z{}~\\x80-\\xFF";
+ return $set;
}
-
- function getText() { return $this->mTextform; }
- function getURL() { return $this->mUrlform; }
- function getDBkey() { return $this->mDbkeyform; }
- function getNamespace() { return $this->mNamespace; }
- function setNamespace( $n ) { $this->mNamespace = $n; }
- function getInterwiki() { return $this->mInterwiki; }
- function getFragment() { return $this->mFragment; }
-
+
+ # Returns a stripped-down a title string ready for the search index
+ # Takes a namespace index and a text-form main part
/* static */ function indexTitle( $ns, $title )
{
global $wgDBminWordLen, $wgLang;
}
return trim( $t );
}
-
- function getIndexTitle()
- {
- return Title::indexTitle( $this->mNamespace, $this->mTextform );
- }
-
+
+ # Make a prefixed DB key from a DB key and a namespace index
/* static */ function makeName( $ns, $title )
{
global $wgLang;
else { return "{$n}:{$title}"; }
}
- /* static */ function makeTitle( $ns, $title )
- {
- $t = new Title();
- $t->mDbkeyform = Title::makeName( $ns, $title );
- if( $t->secureAndSplit() ) {
- return $t;
+ # Arguably static
+ # Returns the URL associated with an interwiki prefix
+ # The URL contains $1, which is replaced by the title
+ function getInterwikiLink( $key )
+ {
+ global $wgMemc, $wgDBname, $wgInterwikiExpiry;
+ static $wgTitleInterwikiCache = array();
+
+ $k = "$wgDBname:interwiki:$key";
+
+ if( array_key_exists( $k, $wgTitleInterwikiCache ) )
+ return $wgTitleInterwikiCache[$k]->iw_url;
+
+ $s = $wgMemc->get( $k );
+ # Ignore old keys with no iw_local
+ if( $s && isset( $s->iw_local ) ) {
+ $wgTitleInterwikiCache[$k] = $s;
+ return $s->iw_url;
+ }
+ $dkey = wfStrencode( $key );
+ $query = "SELECT iw_url,iw_local FROM interwiki WHERE iw_prefix='$dkey'";
+ $res = wfQuery( $query, DB_READ, "Title::getInterwikiLink" );
+ if(!$res) return "";
+
+ $s = wfFetchObject( $res );
+ if(!$s) {
+ $s = (object)false;
+ $s->iw_url = "";
+ }
+ $wgMemc->set( $k, $s, $wgInterwikiExpiry );
+ $wgTitleInterwikiCache[$k] = $s;
+ return $s->iw_url;
+ }
+
+ function isLocal() {
+ global $wgTitleInterwikiCache, $wgDBname;
+
+ if ( $this->mInterwiki != "" ) {
+ # Make sure key is loaded into cache
+ $this->getInterwikiLink( $this->mInterwiki );
+ $k = "$wgDBname:interwiki:" . $this->mInterwiki;
+ return (bool)($wgTitleInterwikiCache[$k]->iw_local);
} else {
- return NULL;
+ return true;
}
}
+ # Update the cur_touched field for an array of title objects
+ # Inefficient unless the IDs are already loaded into the link cache
+ /* static */ function touchArray( $titles, $timestamp = "" ) {
+ if ( count( $titles ) == 0 ) {
+ return;
+ }
+ if ( $timestamp == "" ) {
+ $timestamp = wfTimestampNow();
+ }
+ $sql = "UPDATE cur SET cur_touched='{$timestamp}' WHERE cur_id IN (";
+ $first = true;
+
+ foreach ( $titles as $title ) {
+ if ( ! $first ) {
+ $sql .= ",";
+ }
+
+ $first = false;
+ $sql .= $title->getArticleID();
+ }
+ $sql .= ")";
+ if ( ! $first ) {
+ wfQuery( $sql, DB_WRITE, "Title::touchArray" );
+ }
+ }
+
+#----------------------------------------------------------------------------
+# Other stuff
+#----------------------------------------------------------------------------
+
+ # Simple accessors
+ # See the definitions at the top of this file
+
+ function getText() { return $this->mTextform; }
+ function getPartialURL() { return $this->mUrlform; }
+ function getDBkey() { return $this->mDbkeyform; }
+ function getNamespace() { return $this->mNamespace; }
+ function setNamespace( $n ) { $this->mNamespace = $n; }
+ function getInterwiki() { return $this->mInterwiki; }
+ function getFragment() { return $this->mFragment; }
+ function getDefaultNamespace() { return $this->mDefaultNamespace; }
+
+ # Get title for search index
+ function getIndexTitle()
+ {
+ return Title::indexTitle( $this->mNamespace, $this->mTextform );
+ }
+
+ # Get prefixed title with underscores
function getPrefixedDBkey()
{
$s = $this->prefix( $this->mDbkeyform );
return $s;
}
+ # Get prefixed title with spaces
+ # This is the form usually used for display
function getPrefixedText()
{
- # TEST THIS @@@
if ( empty( $this->mPrefixedText ) ) {
$s = $this->prefix( $this->mTextform );
$s = str_replace( "_", " ", $s );
return $this->mPrefixedText;
}
+ # Get a URL-encoded title (not an actual URL) including interwiki
function getPrefixedURL()
{
$s = $this->prefix( $this->mDbkeyform );
$s = str_replace( " ", "_", $s );
- $s = urlencode ( $s ) ;
+ $s = wfUrlencode ( $s ) ;
+
# Cleaning up URL to make it look nice -- is this safe?
$s = preg_replace( "/%3[Aa]/", ":", $s );
$s = preg_replace( "/%2[Ff]/", "/", $s );
$s = str_replace( "%28", "(", $s );
$s = str_replace( "%29", ")", $s );
+
return $s;
}
- function getFullURL()
+ # Get a real URL referring to this title, with interwiki link and fragment
+ function getFullURL( $query = "" )
{
- global $wgLang, $wgArticlePath;
+ global $wgLang, $wgArticlePath, $wgServer, $wgScript;
if ( "" == $this->mInterwiki ) {
$p = $wgArticlePath;
- } else {
- $p = $this->getInterwikiLink( $this->mInterwiki );
+ return $wgServer . $this->getLocalUrl( $query );
}
+
+ $p = $this->getInterwikiLink( $this->mInterwiki );
$n = $wgLang->getNsText( $this->mNamespace );
if ( "" != $n ) { $n .= ":"; }
$u = str_replace( "$1", $n . $this->mUrlform, $p );
if ( "" != $this->mFragment ) {
- $u .= "#" . $this->mFragment;
+ $u .= "#" . wfUrlencode( $this->mFragment );
}
return $u;
}
+ # Get a URL with an optional query string, no fragment
+ # * If $query=="", it will use $wgArticlePath
+ # * Returns a full for an interwiki link, loses any query string
+ # * Optionally adds the server and escapes for HTML
+ # * Setting $query to "-" makes an old-style URL with nothing in the
+ # query except a title
+
+ function getURL() {
+ die( "Call to obsolete obsolete function Title::getURL()" );
+ }
+
+ function getLocalURL( $query = "" )
+ {
+ global $wgLang, $wgArticlePath, $wgScript;
+
+ if ( $this->isExternal() ) {
+ return $this->getFullURL();
+ }
+
+ $dbkey = wfUrlencode( $this->getPrefixedDBkey() );
+ if ( $query == "" ) {
+ $url = str_replace( "$1", $dbkey, $wgArticlePath );
+ } else {
+ if ( $query == "-" ) {
+ $query = "";
+ }
+ if ( $wgScript != "" ) {
+ $url = "{$wgScript}?title={$dbkey}&{$query}";
+ } else {
+ # Top level wiki
+ $url = "/{$dbkey}?{$query}";
+ }
+ }
+ return $url;
+ }
+
+ function escapeLocalURL( $query = "" ) {
+ return wfEscapeHTML( $this->getLocalURL( $query ) );
+ }
+
+ function escapeFullURL( $query = "" ) {
+ return wfEscapeHTML( $this->getFullURL( $query ) );
+ }
+
+ function getInternalURL( $query = "" ) {
+ # Used in various Squid-related code, in case we have a different
+ # internal hostname for the server than the exposed one.
+ global $wgInternalServer;
+ return $wgInternalServer . $this->getLocalURL( $query );
+ }
+
+ # Get the edit URL, or a null string if it is an interwiki link
function getEditURL()
{
global $wgServer, $wgScript;
if ( "" != $this->mInterwiki ) { return ""; }
- $s = wfLocalUrl( $this->getPrefixedURL(), "action=edit" );
+ $s = $this->getLocalURL( "action=edit" );
return $s;
}
+ # Get HTML-escaped displayable text
# For the title field in <a> tags
function getEscapedText()
{
return wfEscapeHTML( $this->getPrefixedText() );
}
+ # Is the title interwiki?
function isExternal() { return ( "" != $this->mInterwiki ); }
+ # Does the title correspond to a protected article?
function isProtected()
{
if ( -1 == $this->mNamespace ) { return true; }
return false;
}
+ # Is the page a log page, i.e. one where the history is messed up by
+ # LogPage.php? This used to be used for suppressing diff links in recent
+ # changes, but now that's done by setting a flag in the recentchanges
+ # table. Hence, this probably is no longer used.
function isLog()
{
if ( $this->mNamespace != Namespace::getWikipedia() ) {
return false;
}
+ # Is $wgUser is watching this page?
function userIsWatching()
{
global $wgUser;
return $wgUser->isWatched( $this );
}
+ # Can $wgUser edit this page?
function userCanEdit()
{
- global $wgUser;
if ( -1 == $this->mNamespace ) { return false; }
# if ( 0 == $this->getArticleID() ) { return false; }
if ( $this->mDbkeyform == "_" ) { return false; }
-
+ //if ( $this->isCssJsSubpage() and !$this->userCanEditCssJsSubpage() ) { return false; }
+ # protect css/js subpages of user pages
+ # XXX: this might be better using restrictions
+ # XXX: Find a way to work around the php bug that prevents using $this->userCanEditCssJsSubpage() from working
+ global $wgUser;
+ if( Namespace::getUser() == $this->mNamespace
+ and preg_match("/\\.(css|js)$/", $this->mTextform )
+ and !$wgUser->isSysop()
+ and !preg_match("/^".preg_quote($wgUser->getName(), '/')."/", $this->mTextform) )
+ { return false; }
$ur = $wgUser->getRights();
foreach ( $this->getRestrictions() as $r ) {
if ( "" != $r && ( ! in_array( $r, $ur ) ) ) {
}
return true;
}
+
+ function userCanRead() {
+ global $wgUser;
+ global $wgWhitelistRead;
+
+ if( 0 != $wgUser->getID() ) return true;
+ if( !is_array( $wgWhitelistRead ) ) return true;
+
+ $name = $this->getPrefixedText();
+ if( in_array( $name, $wgWhitelistRead ) ) return true;
+
+ # Compatibility with old settings
+ if( $this->getNamespace() == NS_ARTICLE ) {
+ if( in_array( ":" . $name, $wgWhitelistRead ) ) return true;
+ }
+ return false;
+ }
+
+ function isCssJsSubpage() {
+ return ( Namespace::getUser() == $this->mNamespace and preg_match("/\\.(css|js)$/", $this->mTextform ) );
+ }
+ function isCssSubpage() {
+ return ( Namespace::getUser() == $this->mNamespace and preg_match("/\\.css$/", $this->mTextform ) );
+ }
+ function isJsSubpage() {
+ return ( Namespace::getUser() == $this->mNamespace and preg_match("/\\.js$/", $this->mTextform ) );
+ }
+ function userCanEditCssJsSubpage() {
+ # protect css/js subpages of user pages
+ # XXX: this might be better using restrictions
+ global $wgUser;
+ return ( $wgUser->isSysop() or preg_match("/^".preg_quote($wgUser->getName())."/", $this->mTextform) );
+ }
+ # Accessor/initialisation for mRestrictions
function getRestrictions()
{
$id = $this->getArticleID();
return $this->mRestrictions;
}
+ # Is there a version of this page in the deletion archive?
function isDeleted() {
$ns = $this->getNamespace();
$t = wfStrencode( $this->getDBkey() );
return 0;
}
+ # Get the article ID from the link cache
+ # Used very heavily, e.g. in Parser::replaceInternalLinks()
function getArticleID()
{
global $wgLinkCache;
return $this->mArticleID;
}
+ # This clears some fields in this object, and clears any associated keys in the
+ # "bad links" section of $wgLinkCache. This is called from Article::insertNewArticle()
+ # to allow loading of the new cur_id. It's also called from Article::doDeleteArticle()
function resetArticleID( $newid )
{
global $wgLinkCache;
$this->mRestrictions = array();
}
+ # Updates cur_touched
+ # Called from LinksUpdate.php
function invalidateCache() {
$now = wfTimestampNow();
$ns = $this->getNamespace();
$ti = wfStrencode( $this->getDBkey() );
$sql = "UPDATE cur SET cur_touched='$now' WHERE cur_namespace=$ns AND cur_title='$ti'";
- return wfQuery( $sql, "Title::invalidateCache" );
+ return wfQuery( $sql, DB_WRITE, "Title::invalidateCache" );
}
+ # Prefixes some arbitrary text with the namespace or interwiki prefix of this object
/* private */ function prefix( $name )
{
global $wgLang;
return $p . $name;
}
+ # Secure and split - main initialisation function for this object
+ #
# Assumes that mDbkeyform has been set, and is urldecoded
# and uses undersocres, but not otherwise munged. This function
# removes illegal characters, splits off the winterwiki and
#
/* private */ function secureAndSplit()
{
- global $wgLang, $wgLocalInterwiki;
+ global $wgLang, $wgLocalInterwiki, $wgCapitalLinks;
$fname = "Title::secureAndSplit";
wfProfileIn( $fname );
$rxTc = "/[^" . Title::legalChars() . "]/";
}
-
$this->mInterwiki = $this->mFragment = "";
- $this->mNamespace = 0;
+ $this->mNamespace = $this->mDefaultNamespace; # Usually NS_MAIN
+ # Clean up whitespace
+ #
$t = preg_replace( "/[\\s_]+/", "_", $this->mDbkeyform );
- if ( "_" == $t{0} ) {
- $t = substr( $t, 1 );
- }
- $l = strlen( $t );
- if ( $l && ( "_" == $t{$l-1} ) ) {
- $t = substr( $t, 0, $l-1 );
- }
+ $t = preg_replace( '/^_*(.*?)_*$/', '$1', $t );
+
if ( "" == $t ) {
wfProfileOut( $fname );
return false;
$this->mDbkeyform = $t;
$done = false;
+ # :Image: namespace
if ( 0 == strncasecmp( $imgpre, $t, strlen( $imgpre ) ) ) {
$t = substr( $t, 1 );
}
+
+ # Initial colon indicating main namespace
if ( ":" == $t{0} ) {
$r = substr( $t, 1 );
+ $this->mNamespace = NS_MAIN;
} else {
- if ( preg_match( "/^((?:i|x|[a-z]{2,3})(?:-[a-z0-9]+)?|[A-Za-z0-9_\\x80-\\xff]+):_*(.*)$/", $t, $m ) ) {
+ # Namespace or interwiki prefix
+ if ( preg_match( "/^((?:i|x|[a-z]{2,3})(?:-[a-z0-9]+)?|[A-Za-z0-9_\\x80-\\xff]+?)_*:_*(.*)$/", $t, $m ) ) {
#$p = strtolower( $m[1] );
$p = $m[1];
- if ( $ns = $wgLang->getNsIndex( strtolower( $p ) )) {
+ $lowerNs = strtolower( $p );
+ if ( $ns = Namespace::getCanonicalIndex( $lowerNs ) ) {
+ # Canonical namespace
+ $t = $m[2];
+ $this->mNamespace = $ns;
+ } elseif ( $ns = $wgLang->getNsIndex( $lowerNs )) {
+ # Ordinary namespace
$t = $m[2];
$this->mNamespace = $ns;
} elseif ( $this->getInterwikiLink( $p ) ) {
+ # Interwiki link
$t = $m[2];
$this->mInterwiki = $p;
}
$r = $t;
}
+
+ # Redundant interwiki prefix to the local wiki
if ( 0 == strcmp( $this->mInterwiki, $wgLocalInterwiki ) ) {
$this->mInterwiki = "";
}
$this->mFragment = substr( $f, 1 );
$r = substr( $r, 0, strlen( $r ) - strlen( $f ) );
}
- # Strip illegal characters.
+
+ # Reject illegal characters.
#
- $t = preg_replace( $rxTc, "", $r );
+ if( preg_match( $rxTc, $r ) ) {
+ return false;
+ }
+
+ # "." and ".." conflict with the directories of those names
+ if ( $r === "." || $r === ".." ) {
+ return false;
+ }
- if( $this->mInterwiki == "") $t = $wgLang->ucfirst( $t );
+ # Initial capital letter
+ if( $wgCapitalLinks && $this->mInterwiki == "") {
+ $t = $wgLang->ucfirst( $r );
+ }
+
+ # Fill fields
$this->mDbkeyform = $t;
$this->mUrlform = wfUrlencode( $t );
+
$this->mTextform = str_replace( "_", " ", $t );
wfProfileOut( $fname );
return true;
}
+
+ # Get a title object associated with the talk page of this article
+ function getTalkPage() {
+ return Title::makeTitle( Namespace::getTalk( $this->getNamespace() ), $this->getDBkey() );
+ }
+
+ # Get a title object associated with the subject page of this talk page
+ function getSubjectPage() {
+ return Title::makeTitle( Namespace::getSubject( $this->getNamespace() ), $this->getDBkey() );
+ }
+
+ # Get an array of Title objects linking to this title
+ # Also stores the IDs in the link cache
+ function getLinksTo() {
+ global $wgLinkCache;
+ $id = $this->getArticleID();
+ $sql = "SELECT cur_namespace,cur_title,cur_id FROM cur,links WHERE l_from=cur_id AND l_to={$id}";
+ $res = wfQuery( $sql, DB_READ, "Title::getLinksTo" );
+ $retVal = array();
+ if ( wfNumRows( $res ) ) {
+ while ( $row = wfFetchObject( $res ) ) {
+ $titleObj = Title::makeTitle( $row->cur_namespace, $row->cur_title );
+ $wgLinkCache->addGoodLink( $row->cur_id, $titleObj->getPrefixedDBkey() );
+ $retVal[] = $titleObj;
+ }
+ }
+ wfFreeResult( $res );
+ return $retVal;
+ }
+
+ # Get an array of Title objects linking to this non-existent title
+ # Also stores the IDs in the link cache
+ function getBrokenLinksTo() {
+ global $wgLinkCache;
+ $encTitle = wfStrencode( $this->getPrefixedDBkey() );
+ $sql = "SELECT cur_namespace,cur_title,cur_id FROM brokenlinks,cur " .
+ "WHERE bl_from=cur_id AND bl_to='$encTitle'";
+ $res = wfQuery( $sql, DB_READ, "Title::getBrokenLinksTo" );
+ $retVal = array();
+ if ( wfNumRows( $res ) ) {
+ while ( $row = wfFetchObject( $res ) ) {
+ $titleObj = Title::makeTitle( $row->cur_namespace, $row->cur_title );
+ $wgLinkCache->addGoodLink( $titleObj->getPrefixedDBkey(), $row->cur_id );
+ $retVal[] = $titleObj;
+ }
+ }
+ wfFreeResult( $res );
+ return $retVal;
+ }
+
+ function getSquidURLs() {
+ return array(
+ $this->getInternalURL(),
+ $this->getInternalURL( "action=history" )
+ );
+ }
+
+ function moveNoAuth( &$nt ) {
+ return $this->moveTo( $nt, false );
+ }
+
+ # Move a title to a new location
+ # Returns true on success, message name on failure
+ # auth indicates whether wgUser's permissions should be checked
+ function moveTo( &$nt, $auth = true ) {
+ if( !$this or !$nt ) {
+ return "badtitletext";
+ }
+
+ $fname = "Title::move";
+ $oldid = $this->getArticleID();
+ $newid = $nt->getArticleID();
+
+ if ( strlen( $nt->getDBkey() ) < 1 ) {
+ return "articleexists";
+ }
+ if ( ( ! Namespace::isMovable( $this->getNamespace() ) ) ||
+ ( "" == $this->getDBkey() ) ||
+ ( "" != $this->getInterwiki() ) ||
+ ( !$oldid ) ||
+ ( ! Namespace::isMovable( $nt->getNamespace() ) ) ||
+ ( "" == $nt->getDBkey() ) ||
+ ( "" != $nt->getInterwiki() ) ) {
+ return "badarticleerror";
+ }
+
+ if ( $auth && ( !$this->userCanEdit() || !$nt->userCanEdit() ) ) {
+ return "protectedpage";
+ }
+
+ # The move is allowed only if (1) the target doesn't exist, or
+ # (2) the target is a redirect to the source, and has no history
+ # (so we can undo bad moves right after they're done).
+
+ if ( 0 != $newid ) { # Target exists; check for validity
+ if ( ! $this->isValidMoveTarget( $nt ) ) {
+ return "articleexists";
+ }
+ $this->moveOverExistingRedirect( $nt );
+ } else { # Target didn't exist, do normal move.
+ $this->moveToNewTitle( $nt, $newid );
+ }
+
+ # Update watchlists
+
+ $oldnamespace = $this->getNamespace() & ~1;
+ $newnamespace = $nt->getNamespace() & ~1;
+ $oldtitle = $this->getDBkey();
+ $newtitle = $nt->getDBkey();
+
+ if( $oldnamespace != $newnamespace && $oldtitle != $newtitle ) {
+ WatchedItem::duplicateEntries( $this, $nt );
+ }
+
+ # Update search engine
+ $u = new SearchUpdate( $oldid, $nt->getPrefixedDBkey() );
+ $u->doUpdate();
+ $u = new SearchUpdate( $newid, $this->getPrefixedDBkey(), "" );
+ $u->doUpdate();
+
+ return true;
+ }
+
+ # Move page to title which is presently a redirect to the source page
+
+ /* private */ function moveOverExistingRedirect( &$nt )
+ {
+ global $wgUser, $wgLinkCache, $wgUseSquid, $wgMwRedir;
+ $fname = "Title::moveOverExistingRedirect";
+ $comment = wfMsg( "1movedto2", $this->getPrefixedText(), $nt->getPrefixedText() );
+
+ $now = wfTimestampNow();
+ $won = wfInvertTimestamp( $now );
+ $newid = $nt->getArticleID();
+ $oldid = $this->getArticleID();
+
+ # Change the name of the target page:
+ wfUpdateArray(
+ /* table */ 'cur',
+ /* SET */ array(
+ 'cur_touched' => $now,
+ 'cur_namespace' => $nt->getNamespace(),
+ 'cur_title' => $nt->getDBkey()
+ ),
+ /* WHERE */ array( 'cur_id' => $oldid ),
+ $fname
+ );
+ $wgLinkCache->clearLink( $nt->getPrefixedDBkey() );
+
+ # Repurpose the old redirect. We don't save it to history since
+ # by definition if we've got here it's rather uninteresting.
+
+ $redirectText = $wgMwRedir->getSynonym( 0 ) . " [[" . $nt->getPrefixedText() . "]]\n";
+ wfUpdateArray(
+ /* table */ 'cur',
+ /* SET */ array(
+ 'cur_touched' => $now,
+ 'cur_timestamp' => $now,
+ 'inverse_timestamp' => $won,
+ 'cur_namespace' => $this->getNamespace(),
+ 'cur_title' => $this->getDBkey(),
+ 'cur_text' => $wgMwRedir->getSynonym( 0 ) . " [[" . $nt->getPrefixedText() . "]]\n",
+ 'cur_comment' => $comment,
+ 'cur_user' => $wgUser->getID(),
+ 'cur_minor_edit' => 0,
+ 'cur_counter' => 0,
+ 'cur_restrictions' => '',
+ 'cur_user_text' => $wgUser->getName(),
+ 'cur_is_redirect' => 1,
+ 'cur_is_new' => 1
+ ),
+ /* WHERE */ array( 'cur_id' => $newid ),
+ $fname
+ );
+
+ $wgLinkCache->clearLink( $this->getPrefixedDBkey() );
+
+ # Fix the redundant names for the past revisions of the target page.
+ # The redirect should have no old revisions.
+ wfUpdateArray(
+ /* table */ 'old',
+ /* SET */ array(
+ 'old_namespace' => $nt->getNamespace(),
+ 'old_title' => $nt->getDBkey(),
+ ),
+ /* WHERE */ array(
+ 'old_namespace' => $this->getNamespace(),
+ 'old_title' => $this->getDBkey(),
+ ),
+ $fname
+ );
+
+ RecentChange::notifyMove( $now, $this, $nt, $wgUser, $comment );
+
+ # Swap links
+
+ # Load titles and IDs
+ $linksToOld = $this->getLinksTo();
+ $linksToNew = $nt->getLinksTo();
+
+ # Make function to convert Titles to IDs
+ $titleToID = create_function('$t', 'return $t->getArticleID();');
+
+ # Reassign links to old title
+ if ( count( $linksToOld ) ) {
+ $sql = "UPDATE links SET l_to=$newid WHERE l_from IN (";
+ $sql .= implode( ",", array_map( $titleToID, $linksToOld ) );
+ $sql .= ")";
+ wfQuery( $sql, DB_WRITE, $fname );
+ }
+
+ # Reassign links to new title
+ if ( count( $linksToNew ) ) {
+ $sql = "UPDATE links SET l_to=$oldid WHERE l_from IN (";
+ $sql .= implode( ",", array_map( $titleToID, $linksToNew ) );
+ $sql .= ")";
+ wfQuery( $sql, DB_WRITE, $fname );
+ }
+
+ # Note: the insert below must be after the updates above!
+
+ # Now, we record the link from the redirect to the new title.
+ # It should have no other outgoing links...
+ $sql = "DELETE FROM links WHERE l_from={$newid}";
+ wfQuery( $sql, DB_WRITE, $fname );
+ $sql = "INSERT INTO links (l_from,l_to) VALUES ({$newid},{$oldid})";
+ wfQuery( $sql, DB_WRITE, $fname );
+
+ # Purge squid
+ if ( $wgUseSquid ) {
+ $urls = array_merge( $nt->getSquidURLs(), $this->getSquidURLs() );
+ $u = new SquidUpdate( $urls );
+ $u->doUpdate();
+ }
+ }
+
+ # Move page to non-existing title.
+ # Sets $newid to be the new article ID
+
+ /* private */ function moveToNewTitle( &$nt, &$newid )
+ {
+ global $wgUser, $wgLinkCache, $wgUseSquid;
+ $fname = "MovePageForm::moveToNewTitle";
+ $comment = wfMsg( "1movedto2", $this->getPrefixedText(), $nt->getPrefixedText() );
+
+ $now = wfTimestampNow();
+ $won = wfInvertTimestamp( $now );
+ $newid = $nt->getArticleID();
+ $oldid = $this->getArticleID();
+
+ # Rename cur entry
+ wfUpdateArray(
+ /* table */ 'cur',
+ /* SET */ array(
+ 'cur_touched' => $now,
+ 'cur_namespace' => $nt->getNamespace(),
+ 'cur_title' => $nt->getDBkey()
+ ),
+ /* WHERE */ array( 'cur_id' => $oldid ),
+ $fname
+ );
+
+ $wgLinkCache->clearLink( $nt->getPrefixedDBkey() );
+
+ # Insert redirct
+ wfInsertArray( 'cur', array(
+ 'cur_namespace' => $this->getNamespace(),
+ 'cur_title' => $this->getDBkey(),
+ 'cur_comment' => $comment,
+ 'cur_user' => $wgUser->getID(),
+ 'cur_user_text' => $wgUser->getName(),
+ 'cur_timestamp' => $now,
+ 'inverse_timestamp' => $won,
+ 'cur_touched' => $now,
+ 'cur_is_redirect' => 1,
+ 'cur_is_new' => 1,
+ 'cur_text' => "#REDIRECT [[" . $nt->getPrefixedText() . "]]\n" )
+ );
+ $newid = wfInsertId();
+ $wgLinkCache->clearLink( $this->getPrefixedDBkey() );
+
+ # Rename old entries
+ wfUpdateArray(
+ /* table */ 'old',
+ /* SET */ array(
+ 'old_namespace' => $nt->getNamespace(),
+ 'old_title' => $nt->getDBkey()
+ ),
+ /* WHERE */ array(
+ 'old_namespace' => $this->getNamespace(),
+ 'old_title' => $this->getDBkey()
+ ), $fname
+ );
+
+ # Miscellaneous updates
+
+ RecentChange::notifyMove( $now, $this, $nt, $wgUser, $comment );
+ Article::onArticleCreate( $nt );
+
+ # Any text links to the old title must be reassigned to the redirect
+ $sql = "UPDATE links SET l_to={$newid} WHERE l_to={$oldid}";
+ wfQuery( $sql, DB_WRITE, $fname );
+
+ # Record the just-created redirect's linking to the page
+ $sql = "INSERT INTO links (l_from,l_to) VALUES ({$newid},{$oldid})";
+ wfQuery( $sql, DB_WRITE, $fname );
+
+ # Non-existent target may have had broken links to it; these must
+ # now be removed and made into good links.
+ $update = new LinksUpdate( $oldid, $nt->getPrefixedDBkey() );
+ $update->fixBrokenLinks();
+
+ # Purge old title from squid
+ # The new title, and links to the new title, are purged in Article::onArticleCreate()
+ $titles = $nt->getLinksTo();
+ if ( $wgUseSquid ) {
+ $urls = $this->getSquidURLs();
+ foreach ( $titles as $linkTitle ) {
+ $urls[] = $linkTitle->getInternalURL();
+ }
+ $u = new SquidUpdate( $urls );
+ $u->doUpdate();
+ }
+ }
+
+ # Checks if $this can be moved to $nt
+ # Both titles must exist in the database, otherwise it will blow up
+ function isValidMoveTarget( $nt )
+ {
+ $fname = "Title::isValidMoveTarget";
+
+ # Is it a redirect?
+ $id = $nt->getArticleID();
+ $sql = "SELECT cur_is_redirect,cur_text FROM cur " .
+ "WHERE cur_id={$id}";
+ $res = wfQuery( $sql, DB_READ, $fname );
+ $obj = wfFetchObject( $res );
+
+ if ( 0 == $obj->cur_is_redirect ) {
+ # Not a redirect
+ return false;
+ }
+
+ # Does the redirect point to the source?
+ if ( preg_match( "/\\[\\[\\s*([^\\]]*)]]/", $obj->cur_text, $m ) ) {
+ $redirTitle = Title::newFromText( $m[1] );
+ if ( 0 != strcmp( $redirTitle->getPrefixedDBkey(), $this->getPrefixedDBkey() ) ) {
+ return false;
+ }
+ }
+
+ # Does the article have a history?
+ $row = wfGetArray( 'old', array( 'old_id' ), array(
+ 'old_namespace' => $nt->getNamespace(),
+ 'old_title' => $nt->getDBkey() )
+ );
+
+ # Return true if there was no history
+ return $row === false;
+ }
+
+ # Create a redirect, fails if the title already exists, does not notify RC
+ # Returns success
+ function createRedirect( $dest, $comment ) {
+ global $wgUser;
+ if ( $this->getArticleID() ) {
+ return false;
+ }
+
+ $now = wfTimestampNow();
+ $won = wfInvertTimestamp( $now );
+
+ wfInsertArray( 'cur', array(
+ 'cur_namespace' => $this->getNamespace(),
+ 'cur_title' => $this->getDBkey(),
+ 'cur_comment' => $comment,
+ 'cur_user' => $wgUser->getID(),
+ 'cur_user_text' => $wgUser->getName(),
+ 'cur_timestamp' => $now,
+ 'inverse_timestamp' => $won,
+ 'cur_touched' => $now,
+ 'cur_is_redirect' => 1,
+ 'cur_is_new' => 1,
+ 'cur_text' => "#REDIRECT [[" . $dest->getPrefixedText() . "]]\n"
+ ));
+ $newid = wfInsertId();
+ $this->resetArticleID( $newid );
+
+ # Link table
+ if ( $dest->getArticleID() ) {
+ wfInsertArray( 'links', array(
+ 'l_to' => $dest->getArticleID(),
+ 'l_from' => $newid
+ ));
+ } else {
+ wfInsertArray( 'brokenlinks', array(
+ 'bl_to' => $dest->getPrefixedDBkey(),
+ 'bl_from' => $newid
+ ));
+ }
+
+ Article::onArticleCreate( $this );
+ return true;
+ }
+
}
?>
dépôts / lhc / web / wiklou.git / blobdiff