MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / includes / ExternalStore.php

diff --git a/includes/ExternalStore.php b/includes/ExternalStore.php
deleted file mode 100644 (file)
index ddb40c3..0000000
--- a/includes/ExternalStore.php
+++ /dev/null
@@ -1,143 +0,0 @@
-<?php
-/**
- * @defgroup ExternalStorage ExternalStorage
- */
-
-/**
- * Constructor class for data kept in external repositories
- *
- * External repositories might be populated by maintenance/async
- * scripts, thus partial moving of data may be possible, as well
- * as possibility to have any storage format (i.e. for archives)
- *
- * @ingroup ExternalStorage
- */
-class ExternalStore {
-       var $mParams;
-       
-       function __construct( $params = array() ) {
-               $this->mParams = $params;
-       }
-       
-       /**
-        * Fetch data from given URL
-        *
-        * @param $url String: The URL of the text to get
-        * @param $params Array: associative array of parameters for the ExternalStore object.
-        * @return The text stored or false on error
-        */
-       static function fetchFromURL( $url, $params = array() ) {
-               global $wgExternalStores;
-
-               if( !$wgExternalStores )
-                       return false;
-
-               $parts = explode( '://', $url, 2 );
-
-               if ( count( $parts ) != 2 ) {
-                       return false;
-               }
-
-               list( $proto, $path ) = $parts;
-
-               if ( $path == '' ) { // Bad URL
-                       return false;
-               }
-
-               $store = self::getStoreObject( $proto, $params );
-               if ( $store === false )
-                       return false;
-               return $store->fetchFromURL( $url );
-       }
-
-       /**
-        * Get an external store object of the given type, with the given parameters
-        *
-        * @param $proto String: type of external storage, should be a value in $wgExternalStores
-        * @param $params Array: associative array of parameters for the ExternalStore object.
-        * @return ExternalStore subclass or false on error
-        */
-       static function getStoreObject( $proto, $params = array() ) {
-               global $wgExternalStores;
-               if( !$wgExternalStores )
-                       return false;
-               /* Protocol not enabled */
-               if( !in_array( $proto, $wgExternalStores ) )
-                       return false;
-
-               $class = 'ExternalStore' . ucfirst( $proto );
-               /* Any custom modules should be added to $wgAutoLoadClasses for on-demand loading */
-               if( !class_exists( $class ) ) {
-                       return false;
-               }
-
-               return new $class($params);
-       }
-
-       /**
-        * Store a data item to an external store, identified by a partial URL
-        * The protocol part is used to identify the class, the rest is passed to the
-        * class itself as a parameter.
-        * @return The URL of the stored data item, or false on error
-        */
-       static function insert( $url, $data, $params = array() ) {
-               list( $proto, $params ) = explode( '://', $url, 2 );
-               $store = self::getStoreObject( $proto, $params );
-               if ( $store === false ) {
-                       return false;
-               } else {
-                       return $store->store( $params, $data );
-               }
-       }
-       
-       /**
-        * Like insert() above, but does more of the work for us.
-        * This function does not need a url param, it builds it by
-        * itself. It also fails-over to the next possible clusters.
-        *
-        * @param $data String
-        * @param $storageParams Array: associative array of parameters for the ExternalStore object.
-        * @return The URL of the stored data item, or false on error
-        */
-       public static function insertToDefault( $data, $storageParams = array() ) {
-               global $wgDefaultExternalStore;
-               $tryStores = (array)$wgDefaultExternalStore;
-               $error = false;
-               while ( count( $tryStores ) > 0 ) {
-                       $index = mt_rand(0, count( $tryStores ) - 1);
-                       $storeUrl = $tryStores[$index];
-                       wfDebug( __METHOD__.": trying $storeUrl\n" );
-                       list( $proto, $params ) = explode( '://', $storeUrl, 2 );
-                       $store = self::getStoreObject( $proto, $storageParams );
-                       if ( $store === false ) {
-                               throw new MWException( "Invalid external storage protocol - $storeUrl" );
-                       }
-                       try {
-                               $url = $store->store( $params, $data ); // Try to save the object
-                       } catch ( DBConnectionError $error ) {
-                               $url = false;
-                       } catch( DBQueryError $error ) {
-                               $url = false;
-                       }
-                       if ( $url ) {
-                               return $url; // Done!
-                       } else {
-                               unset( $tryStores[$index] ); // Don't try this one again!
-                               $tryStores = array_values( $tryStores ); // Must have consecutive keys
-                               wfDebugLog( 'ExternalStorage', "Unable to store text to external storage $storeUrl" );
-                       }
-               }
-               // All stores failed
-               if ( $error ) {
-                       // Rethrow the last connection error
-                       throw $error;
-               } else {
-                       throw new MWException( "Unable to store text to external storage" );
-               }
-       }
-       
-       /** Like insertToDefault, but inserts on another wiki */
-       public static function insertToForeignDefault( $data, $wiki ) {
-               return self::insertToDefault( $data, array( 'wiki' => $wiki ) );
-       }
-}