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<?php
/**
* Tools for dealing with other locally-hosted wikis.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* Helper tools for dealing with other locally-hosted wikis
*/
class WikiMap {
/**
* Get a WikiReference object for $wikiID
*
* @param string $wikiID Wiki'd id (generally database name)
* @return WikiReference|null WikiReference object or null if the wiki was not found
*/
public static function getWiki( $wikiID ) {
global $wgConf;
$wgConf->loadFullData();
list( $major, $minor ) = $wgConf->siteFromDB( $wikiID );
if ( $major === null ) {
return null;
}
$server = $wgConf->get( 'wgServer', $wikiID, $major,
array( 'lang' => $minor, 'site' => $major ) );
$canonicalServer = $wgConf->get( 'wgCanonicalServer', $wikiID, $major,
array( 'lang' => $minor, 'site' => $major ) );
if ( $canonicalServer === false || $canonicalServer === null ) {
$canonicalServer = $server;
}
$path = $wgConf->get( 'wgArticlePath', $wikiID, $major,
array( 'lang' => $minor, 'site' => $major ) );
return new WikiReference( $major, $minor, $canonicalServer, $path, $server );
}
/**
* Convenience to get the wiki's display name
*
* @todo We can give more info than just the wiki id!
* @param string $wikiID Wiki'd id (generally database name)
* @return string|int Wiki's name or $wiki_id if the wiki was not found
*/
public static function getWikiName( $wikiID ) {
$wiki = WikiMap::getWiki( $wikiID );
if ( $wiki ) {
return $wiki->getDisplayName();
}
return $wikiID;
}
/**
* Convenience to get a link to a user page on a foreign wiki
*
* @param string $wikiID Wiki'd id (generally database name)
* @param string $user User name (must be normalised before calling this function!)
* @param string $text Link's text; optional, default to "User:$user"
* @return string HTML link or false if the wiki was not found
*/
public static function foreignUserLink( $wikiID, $user, $text = null ) {
return self::makeForeignLink( $wikiID, "User:$user", $text );
}
/**
* Convenience to get a link to a page on a foreign wiki
*
* @param string $wikiID Wiki'd id (generally database name)
* @param string $page Page name (must be normalised before calling this function!)
* @param string $text Link's text; optional, default to $page
* @return string HTML link or false if the wiki was not found
*/
public static function makeForeignLink( $wikiID, $page, $text = null ) {
if ( !$text ) {
$text = $page;
}
$url = self::getForeignURL( $wikiID, $page );
if ( $url === false ) {
return false;
}
return Linker::makeExternalLink( $url, $text );
}
/**
* Convenience to get a url to a page on a foreign wiki
*
* @param string $wikiID Wiki'd id (generally database name)
* @param string $page Page name (must be normalised before calling this function!)
* @return string|bool URL or false if the wiki was not found
*/
public static function getForeignURL( $wikiID, $page ) {
$wiki = WikiMap::getWiki( $wikiID );
if ( $wiki ) {
return $wiki->getFullUrl( $page );
}
return false;
}
}
/**
* Reference to a locally-hosted wiki
*/
class WikiReference {
private $mMinor; ///< 'en', 'meta', 'mediawiki', etc
private $mMajor; ///< 'wiki', 'wiktionary', etc
private $mCanonicalServer; ///< canonical server URL, e.g. 'https://www.mediawiki.org'
private $mServer; ///< server URL, may be protocol-relative, e.g. '//www.mediawiki.org'
private $mPath; ///< path, '/wiki/$1'
/**
* @param string $major
* @param string $minor
* @param string $canonicalServer
* @param string $path
* @param null|string $server
*/
public function __construct( $major, $minor, $canonicalServer, $path, $server = null ) {
$this->mMajor = $major;
$this->mMinor = $minor;
$this->mCanonicalServer = $canonicalServer;
$this->mPath = $path;
$this->mServer = $server === null ? $canonicalServer : $server;
}
/**
* @return string
* @throws MWException
*/
public function getHostname() {
$prefixes = array( 'http://', 'https://' );
foreach ( $prefixes as $prefix ) {
if ( substr( $this->mCanonicalServer, 0, strlen( $prefix ) ) ) {
return substr( $this->mCanonicalServer, strlen( $prefix ) );
}
}
throw new MWException( "Invalid hostname for wiki {$this->mMinor}.{$this->mMajor}" );
}
/**
* Get the URL in a way to be displayed to the user
* More or less Wikimedia specific
*
* @return string
*/
public function getDisplayName() {
$url = $this->getUrl( '' );
$parsed = wfParseUrl( $url );
if ( $parsed ) {
return $parsed['host'];
} else {
// Invalid URL. There's no sane thing to do here, so just return it
return $url;
}
}
/**
* Helper function for getUrl()
*
* @todo FIXME: This may be generalized...
* @param string $page Page name (must be normalised before calling this function!)
* @return string Url fragment
*/
private function getLocalUrl( $page ) {
return str_replace( '$1', wfUrlEncode( str_replace( ' ', '_', $page ) ), $this->mPath );
}
/**
* Get a canonical (i.e. based on $wgCanonicalServer) URL to a page on this foreign wiki
*
* @param string $page Page name (must be normalised before calling this function!)
* @return string Url
*/
public function getCanonicalUrl( $page ) {
return $this->mCanonicalServer . $this->getLocalUrl( $page );
}
/**
* Get a canonical server URL
* @return string
*/
public function getCanonicalServer() {
return $this->mCanonicalServer;
}
/**
* Alias for getCanonicalUrl(), for backwards compatibility.
* @param string $page
* @return string
*/
public function getUrl( $page ) {
return $this->getCanonicalUrl( $page );
}
/**
* Get a URL based on $wgServer, like Title::getFullURL() would produce
* when called locally on the wiki.
*
* @param string $page Page name (must be normalized before calling this function!)
* @return string URL
*/
public function getFullUrl( $page ) {
return $this->mServer .
$this->getLocalUrl( $page );
}
}
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