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Diffstat (limited to 'maintenance/rebuildInterwiki.inc')
| -rw-r--r-- | maintenance/rebuildInterwiki.inc | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/maintenance/rebuildInterwiki.inc b/maintenance/rebuildInterwiki.inc new file mode 100644 index 00000000..d719fd40 --- /dev/null +++ b/maintenance/rebuildInterwiki.inc @@ -0,0 +1,260 @@ +<?php +/** + * Rebuild interwiki table using the file on meta and the language list + * Wikimedia specific! + * + * @todo document + * @package MediaWiki + * @subpackage Maintenance + */ + +/** */ + +/** + * @todo document + * @package MediaWiki + * @subpackage Maintenance + */ +class Site { + var $suffix, $lateral, $url; + + function Site( $s, $l, $u ) { + $this->suffix = $s; + $this->lateral = $l; + $this->url = $u; + } + + function getURL( $lang ) { + $xlang = str_replace( '_', '-', $lang ); + return "http://$xlang.{$this->url}/wiki/\$1"; + } +} + +function getRebuildInterwikiSQL() { + global $langlist, $languageAliases, $prefixRewrites; + + # Multi-language sites + # db suffix => db suffix, iw prefix, hostname + $sites = array( + 'wiki' => new Site( 'wiki', 'w', 'wikipedia.org' ), + 'wiktionary' => new Site( 'wiktionary', 'wikt', 'wiktionary.org' ), + 'wikiquote' => new Site( 'wikiquote', 'q', 'wikiquote.org' ), + 'wikibooks' => new Site( 'wikibooks', 'b', 'wikibooks.org' ), + 'wikinews' => new Site( 'wikinews', 'n', 'wikinews.org' ), + 'wikisource' => new Site( 'wikisource', 's', 'wikisource.org' ), + 'wikimedia' => new Site( 'wikimedia', 'chapter', 'wikimedia.org' ), + ); + + # List of language prefixes likely to be found in multi-language sites + $langlist = array_map( "trim", file( "/home/wikipedia/common/langlist" ) ); + + # List of all database names + $dblist = array_map( "trim", file( "/home/wikipedia/common/all.dblist" ) ); + + # Special-case hostnames + $specials = array( + 'sourceswiki' => 'sources.wikipedia.org', + 'quotewiki' => 'wikiquote.org', + 'textbookwiki' => 'wikibooks.org', + 'sep11wiki' => 'sep11.wikipedia.org', + 'metawiki' => 'meta.wikimedia.org', + 'commonswiki' => 'commons.wikimedia.org', + ); + + # Extra interwiki links that can't be in the intermap for some reason + $extraLinks = array( + array( 'm', 'http://meta.wikimedia.org/wiki/$1', 1 ), + array( 'meta', 'http://meta.wikimedia.org/wiki/$1', 1 ), + array( 'sep11', 'http://sep11.wikipedia.org/wiki/$1', 1 ), + ); + + # Language aliases, usually configured as redirects to the real wiki in apache + # Interlanguage links are made directly to the real wiki + # Something horrible happens if you forget to list an alias here, I can't + # remember what + $languageAliases = array( + 'zh-cn' => 'zh', + 'zh-tw' => 'zh', + 'dk' => 'da', + 'nb' => 'no', + ); + + # Special case prefix rewrites, for the benefit of Swedish which uses s:t + # as an abbreviation for saint + $prefixRewrites = array( + 'svwiki' => array( 's' => 'src' ), + ); + + # Construct a list of reserved prefixes + $reserved = array(); + foreach ( $langlist as $lang ) { + $reserved[$lang] = 1; + } + foreach ( $languageAliases as $alias => $lang ) { + $reserved[$alias] = 1; + } + foreach( $sites as $site ) { + $reserved[$site->lateral] = 1; + } + + # Extract the intermap from meta + $intermap = wfGetHTTP( 'http://meta.wikimedia.org/w/index.php?title=Interwiki_map&action=raw', 30 ); + $lines = array_map( 'trim', explode( "\n", trim( $intermap ) ) ); + + if ( !$lines || count( $lines ) < 2 ) { + wfDie( "m:Interwiki_map not found" ); + } + + $iwArray = array(); + + foreach ( $lines as $line ) { + if ( preg_match( '/^\|\s*(.*?)\s*\|\|\s*(https?:\/\/.*?)\s*$/', $line, $matches ) ) { + $prefix = strtolower( $matches[1] ); + $url = $matches[2]; + if ( preg_match( '/(wikipedia|wiktionary|wikisource|wikiquote|wikibooks|wikimedia)\.org/', $url ) ) { + $local = 1; + } else { + $local = 0; + } + + if ( empty( $reserved[$prefix] ) ) { + $iwArray[$prefix] = array( "iw_prefix" => $prefix, "iw_url" => $url, "iw_local" => $local ); + } + } + } + + $sql = "-- Generated by rebuildInterwiki.php"; + + + foreach ( $dblist as $db ) { + if ( isset( $specials[$db] ) ) { + # Special wiki + # Has interwiki links and interlanguage links to wikipedia + + $host = $specials[$db]; + $sql .= "\n--$host\n\n"; + $sql .= "USE $db;\n" . + "TRUNCATE TABLE interwiki;\n" . + "INSERT INTO interwiki (iw_prefix, iw_url, iw_local) VALUES \n"; + $first = true; + + # Intermap links + foreach ( $iwArray as $iwEntry ) { + $sql .= makeLink( $iwEntry, $first, $db ); + } + + # Links to multilanguage sites + foreach ( $sites as $targetSite ) { + $sql .= makeLink( array( $targetSite->lateral, $targetSite->getURL( 'en' ), 1 ), $first, $db ); + } + + # Interlanguage links to wikipedia + $sql .= makeLanguageLinks( $sites['wiki'], $first, $db ); + + # Extra links + foreach ( $extraLinks as $link ) { + $sql .= makeLink( $link, $first, $db ); + } + + $sql .= ";\n"; + } else { + # Find out which site this DB belongs to + $site = false; + foreach( $sites as $candidateSite ) { + $suffix = $candidateSite->suffix; + if ( preg_match( "/(.*)$suffix$/", $db, $matches ) ) { + $site = $candidateSite; + break; + } + } + if ( !$site ) { + print "Invalid database $db\n"; + continue; + } + $lang = $matches[1]; + $host = "$lang." . $site->url; + $sql .= "\n--$host\n\n"; + + $sql .= "USE $db;\n" . + "TRUNCATE TABLE interwiki;\n" . + "INSERT INTO interwiki (iw_prefix,iw_url,iw_local) VALUES\n"; + $first = true; + + # Intermap links + foreach ( $iwArray as $iwEntry ) { + # Suppress links with the same name as the site + if ( ( $suffix == 'wiki' && $iwEntry['iw_prefix'] != 'wikipedia' ) || + ( $suffix != 'wiki' && $suffix != $iwEntry['iw_prefix'] ) ) + { + $sql .= makeLink( $iwEntry, $first, $db ); + } + } + + # Lateral links + foreach ( $sites as $targetSite ) { + # Suppress link to self + if ( $targetSite->suffix != $site->suffix ) { + $sql .= makeLink( array( $targetSite->lateral, $targetSite->getURL( $lang ), 1 ), $first, $db ); + } + } + + # Interlanguage links + $sql .= makeLanguageLinks( $site, $first, $db ); + + # w link within wikipedias + # Other sites already have it as a lateral link + if ( $site->suffix == "wiki" ) { + $sql .= makeLink( array("w", "http://en.wikipedia.org/wiki/$1", 1), $first, $db ); + } + + # Extra links + foreach ( $extraLinks as $link ){ + $sql .= makeLink( $link, $first, $db ); + } + $sql .= ";\n\n"; + } + } + return $sql; +} + +# ------------------------------------------------------------------------------------------ + +# Returns part of an INSERT statement, corresponding to all interlanguage links to a particular site +function makeLanguageLinks( &$site, &$first, $source ) { + global $langlist, $languageAliases; + + $sql = ""; + + # Actual languages with their own databases + foreach ( $langlist as $targetLang ) { + $sql .= makeLink( array( $targetLang, $site->getURL( $targetLang ), 1 ), $first, $source ); + } + + # Language aliases + foreach ( $languageAliases as $alias => $lang ) { + $sql .= makeLink( array( $alias, $site->getURL( $lang ), 1 ), $first, $source ); + } + return $sql; +} + +# Make SQL for a single link from an array +function makeLink( $entry, &$first, $source ) { + global $prefixRewrites; + + if ( isset( $prefixRewrites[$source] ) && isset( $prefixRewrites[$source][$entry[0]] ) ) { + $entry[0] = $prefixRewrites[$source][$entry[0]]; + } + + $sql = ""; + # Add comma + if ( $first ) { + $first = false; + } else { + $sql .= ",\n"; + } + $dbr =& wfGetDB( DB_SLAVE ); + $sql .= "(" . $dbr->makeList( $entry ) . ")"; + return $sql; +} + +?> |