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Diffstat (limited to 'maintenance/dumpInterwiki.inc')
| -rw-r--r-- | maintenance/dumpInterwiki.inc | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/maintenance/dumpInterwiki.inc b/maintenance/dumpInterwiki.inc new file mode 100644 index 00000000..3cca1e02 --- /dev/null +++ b/maintenance/dumpInterwiki.inc @@ -0,0 +1,219 @@ +<?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 getRebuildInterwikiDump() { + global $langlist, $languageAliases, $prefixRewrites, $wgDBname; + + # 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(); + # Global iterwiki map + foreach ( $lines as $line ) { + if ( preg_match( '/^\|\s*(.*?)\s*\|\|\s*(.*?)\s*$/', $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] ) ) { + $imap = array( "iw_prefix" => $prefix, "iw_url" => $url, "iw_local" => $local ); + makeLink ($imap, "__global"); + } + } + } + + # Exclude Wikipedia for Wikipedia + makeLink ( array ('iw_prefix' => 'wikipedia', 'is_url' => null ), "_wiki" ); + + #Multilanguage sites + foreach ($sites as $site) + $sql .= makeLanguageLinks ( $site, "_".$site->suffix ); + + + foreach ( $dblist as $db ) { + if ( isset( $specials[$db] ) ) { + # Special wiki + # Has interwiki links and interlanguage links to wikipedia + + makeLink( array( 'iw_prefix' => $db, 'iw_url' => "wiki"), "__sites" ); + # Links to multilanguage sites + foreach ( $sites as $targetSite ) { + makeLink( array( 'iw_prefix' => $targetSite->lateral, + 'iw_url' =>$targetSite->getURL( 'en' ), + 'iw_local' => 1 ), $db ); + } + + } 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; + } + } + makeLink( array( 'iw_prefix' => $db, 'iw_url' => $site->suffix), "__sites" ); + if ( !$site ) { + print "Invalid database $db\n"; + continue; + } + $lang = $matches[1]; + $host = "$lang." . $site->url; + + # Lateral links + foreach ( $sites as $targetSite ) { + if ( $targetSite->suffix != $site->suffix ) { + makeLink( array( 'iw_prefix' => $targetSite->lateral, + 'iw_url' => $targetSite->getURL( $lang ), + 'iw_local' => 1 ), $db ); + } + } + + if ( $site->suffix == "wiki" ) { + makeLink( array('iw_prefix' => 'w', + 'iw_url' => "http://en.wikipedia.org/wiki/$1", + 'iw_local' => 1), $db ); + } + + } + } + foreach ( $extraLinks as $link ) + makeLink( $link, "__global" ); +} + +# ------------------------------------------------------------------------------------------ + +# Returns part of an INSERT statement, corresponding to all interlanguage links to a particular site +function makeLanguageLinks( &$site, $source ) { + global $langlist, $languageAliases; + # Actual languages with their own databases + foreach ( $langlist as $targetLang ) { + makeLink( array( $targetLang, $site->getURL( $targetLang ), 1 ), $source ); + } + + # Language aliases + foreach ( $languageAliases as $alias => $lang ) { + makeLink( array( $alias, $site->getURL( $lang ), 1 ), $source ); + } +} + +function makeLink( $entry, $source ) { + global $prefixRewrites, $dbFile; + if ( isset( $prefixRewrites[$source] ) && isset( $prefixRewrites[$source][$entry[0]] ) ) + $entry[0] = $prefixRewrites[$source][$entry[0]]; + if (!array_key_exists("iw_prefix",$entry)) + $entry = array("iw_prefix" => $entry[0], "iw_url" => $entry[1], "iw_local" => $entry[2]); + if ( array_key_exists($source,$prefixRewrites) && + array_key_exists($entry['iw_prefix'],$prefixRewrites[$source])) + $entry['iw_prefix'] = $prefixRewrites[$source][$entry['iw_prefix']]; + if ($dbFile) + dba_insert("{$source}:{$entry['iw_prefix']}", trim("{$entry['iw_local']} {$entry['iw_url']}"),$dbFile); + else + print "{$source}:{$entry['iw_prefix']} {$entry['iw_url']} {$entry['iw_local']}\n"; + + } + +?> |