X-Git-Url: https://git.heureux-cyclage.org/?a=blobdiff_plain;f=includes%2FSiteConfiguration.php;h=2ed2813956d3fbec733c3a5bf5d6813e5a4ffb2c;hb=56c2036f1e780e4ede9e83f803fdf57929daacfb;hp=84c7671dec68253291e467eca4e3b3a892798ca6;hpb=0b2fb67cd1b96f00de040e5239897159c05040b0;p=lhc%2Fweb%2Fwiklou.git

diff --git a/includes/SiteConfiguration.php b/includes/SiteConfiguration.php
index 84c7671dec..2ed2813956 100644
--- a/includes/SiteConfiguration.php
+++ b/includes/SiteConfiguration.php
@@ -1,65 +1,391 @@
 <?php
 
-# This file is used to configure the live Wikimedia wikis. The file that includes
-# it contains passwords and other sensitive data, and there's currently no public
-# equivalent. 
+/**
+ * The include paths change after this file is included from commandLine.inc,
+ * meaning that require_once() fails to detect that it is including the same
+ * file again. We use DIY C-style protection as a workaround.
+ */
 
+// Hide this pattern from Doxygen, which spazzes out at it
+/// @cond
+if( !defined( 'SITE_CONFIGURATION' ) ){
+define( 'SITE_CONFIGURATION', 1 );
+/// @endcond
+
+/**
+ * This is a class used to hold configuration settings, particularly for multi-wiki sites.
+ */
 class SiteConfiguration {
-	var $suffixes, $wikis, $settings;
-	var $localDatabases;
-	
-	function get( $setting, $wiki, $suffix, $params = array() ) {
-		if ( array_key_exists( $wiki, $this->settings[$setting] ) ) {
-			$retval = $this->settings[$setting][$wiki];
-		} elseif ( array_key_exists( $suffix, $this->settings[$setting] ) ) {
-			$retval = $this->settings[$setting][$suffix];
-		} elseif ( array_key_exists( "default", $this->settings[$setting] ) ) {
-			$retval = $this->settings[$setting]['default'];
-		} else {
-			$retval = NULL;
+
+	/**
+	 * Array of suffixes, for self::siteFromDB()
+	 */
+	public $suffixes = array();
+
+	/**
+	 * Array of wikis, should be the same as $wgLocalDatabases
+	 */
+	public $wikis = array();
+
+	/**
+	 * The whole array of settings
+	 */
+	public $settings = array();
+
+	/**
+	 * Array of domains that are local and can be handled by the same server
+	 */
+	public $localVHosts = array();
+
+	/**
+	 * A callback function that returns an array with the following keys (all
+	 * optional):
+	 * - suffix: site's suffix
+	 * - lang: site's lang
+	 * - tags: array of wiki tags
+	 * - params: array of parameters to be replaced
+	 * The function will receive the SiteConfiguration instance in the first
+	 * argument and the wiki in the second one.
+	 * if suffix and lang are passed they will be used for the return value of
+	 * self::siteFromDB() and self::$suffixes will be ignored
+	 */
+	public $siteParamsCallback = null;
+
+	/**
+	 * Retrieves a configuration setting for a given wiki.
+	 * @param $settingName String ID of the setting name to retrieve
+	 * @param $wiki String Wiki ID of the wiki in question.
+	 * @param $suffix String The suffix of the wiki in question.
+	 * @param $params Array List of parameters. $.'key' is replaced by $value in all returned data.
+	 * @param $wikiTags Array The tags assigned to the wiki.
+	 * @return Mixed the value of the setting requested.
+	 */
+	public function get( $settingName, $wiki, $suffix = null, $params = array(), $wikiTags = array() ) {
+		$params = $this->mergeParams( $wiki, $suffix, $params, $wikiTags );
+		return $this->getSetting( $settingName, $wiki, $params );
+	}
+
+	/**
+	 * Really retrieves a configuration setting for a given wiki.
+	 *
+	 * @param $settingName String ID of the setting name to retrieve.
+	 * @param $wiki String Wiki ID of the wiki in question.
+	 * @param $params Array: array of parameters.
+	 * @return Mixed the value of the setting requested.
+	 */
+	protected function getSetting( $settingName, $wiki, /*array*/ $params ){
+		$retval = null;
+		if( array_key_exists( $settingName, $this->settings ) ) {
+			$thisSetting =& $this->settings[$settingName];
+			do {
+				// Do individual wiki settings
+				if( array_key_exists( $wiki, $thisSetting ) ) {
+					$retval = $thisSetting[$wiki];
+					break;
+				} elseif( array_key_exists( "+$wiki", $thisSetting ) && is_array( $thisSetting["+$wiki"] ) ) {
+					$retval = $thisSetting["+$wiki"];
+				}
+
+				// Do tag settings
+				foreach( $params['tags'] as $tag ) {
+					if( array_key_exists( $tag, $thisSetting ) ) {
+						if ( isset( $retval ) && is_array( $retval ) && is_array( $thisSetting[$tag] ) ) {
+							$retval = self::arrayMerge( $retval, $thisSetting[$tag] );
+						} else {
+							$retval = $thisSetting[$tag];
+						}
+						break 2;
+					} elseif( array_key_exists( "+$tag", $thisSetting ) && is_array($thisSetting["+$tag"]) ) {
+						if( !isset( $retval ) )
+							$retval = array();
+						$retval = self::arrayMerge( $retval, $thisSetting["+$tag"] );
+					}
+				}
+				// Do suffix settings
+				$suffix = $params['suffix'];
+				if( !is_null( $suffix ) ) {
+					if( array_key_exists( $suffix, $thisSetting ) ) {
+						if ( isset($retval) && is_array($retval) && is_array($thisSetting[$suffix]) ) {
+							$retval = self::arrayMerge( $retval, $thisSetting[$suffix] );
+						} else {
+							$retval = $thisSetting[$suffix];
+						}
+						break;
+					} elseif( array_key_exists( "+$suffix", $thisSetting ) && is_array($thisSetting["+$suffix"]) ) {
+						if (!isset($retval))
+							$retval = array();
+						$retval = self::arrayMerge( $retval, $thisSetting["+$suffix"] );
+					}
+				}
+
+				// Fall back to default.
+				if( array_key_exists( 'default', $thisSetting ) ) {
+					if( is_array( $retval ) && is_array( $thisSetting['default'] ) ) {
+						$retval = self::arrayMerge( $retval, $thisSetting['default'] );
+					} else {
+						$retval = $thisSetting['default'];
+					}
+					break;
+				}
+			} while ( false );
 		}
-		if ( !is_null( $retval ) && count( $params ) ) {
-			foreach ( $params as $key => $value ) {
-				$retval = str_replace( '$' . $key, $value, $retval );
+
+		if( !is_null( $retval ) && count( $params['params'] ) ) {
+			foreach ( $params['params'] as $key => $value ) {
+				$retval = $this->doReplace( '$' . $key, $value, $retval );
 			}
 		}
 		return $retval;
 	}
 
-	function getBool( $setting, $wiki, $suffix ) {
-		return (bool)($this->get( $setting, $wiki, $suffix ));
+	/**
+	 * Type-safe string replace; won't do replacements on non-strings
+	 * private?
+	 */
+	function doReplace( $from, $to, $in ) {
+		if( is_string( $in ) ) {
+			return str_replace( $from, $to, $in );
+		} elseif( is_array( $in ) ) {
+			foreach( $in as $key => $val ) {
+				$in[$key] = $this->doReplace( $from, $to, $val );
+			}
+			return $in;
+		} else {
+			return $in;
+		}
+	}
+
+	/**
+	 * Gets all settings for a wiki
+	 * @param $wiki String Wiki ID of the wiki in question.
+	 * @param $suffix String The suffix of the wiki in question.
+	 * @param $params Array List of parameters. $.'key' is replaced by $value in all returned data.
+	 * @param $wikiTags Array The tags assigned to the wiki.
+	 * @return Array Array of settings requested.
+	 */
+	public function getAll( $wiki, $suffix = null, $params = array(), $wikiTags = array() ) {
+		$params = $this->mergeParams( $wiki, $suffix, $params, $wikiTags );
+		$localSettings = array();
+		foreach( $this->settings as $varname => $stuff ) {
+			$append = false;
+			$var = $varname;
+			if ( substr( $varname, 0, 1 ) == '+' ) {
+				$append = true;
+				$var = substr( $varname, 1 );
+			}
+
+			$value = $this->getSetting( $varname, $wiki, $params );
+			if ( $append && is_array( $value ) && is_array( $GLOBALS[$var] ) )
+				$value = self::arrayMerge( $value, $GLOBALS[$var] );
+			if ( !is_null( $value ) ) {
+				$localSettings[$var] = $value;
+			}
+		}
+		return $localSettings;
 	}
 
+	/**
+	 * Retrieves a configuration setting for a given wiki, forced to a boolean.
+	 * @param $settingName String ID of the setting name to retrieve
+	 * @param $wiki String Wiki ID of the wiki in question.
+	 * @param $suffix String The suffix of the wiki in question.
+	 * @param $params Array List of parameters. $.'key' is replaced by $value in all returned data.
+	 * @param $wikiTags Array The tags assigned to the wiki.
+	 * @return bool The value of the setting requested.
+	 */
+	public function getBool( $setting, $wiki, $suffix = null, $wikiTags = array() ) {
+		return (bool)($this->get( $setting, $wiki, $suffix, array(), $wikiTags ) );
+	}
+
+	/** Retrieves an array of local databases */
 	function &getLocalDatabases() {
-		return $this->localDatabases;
+		return $this->wikis;
 	}
-	
+
+	/** A no-op */
 	function initialise() {
-		foreach ( $this->wikis as $db ) {
-			$this->localDatabases[$db] = $db;
-		}
 	}
 
-	function extractVar( $setting, $wiki, $suffix, &$var, $params ) {
-		$value = $this->get( $setting, $wiki, $suffix, $params );
+	/**
+	 * Retrieves the value of a given setting, and places it in a variable passed by reference.
+	 * @param $settingName String ID of the setting name to retrieve
+	 * @param $wiki String Wiki ID of the wiki in question.
+	 * @param $suffix String The suffix of the wiki in question.
+	 * @param $var Reference The variable to insert the value into.
+	 * @param $params Array List of parameters. $.'key' is replaced by $value in all returned data.
+	 * @param $wikiTags Array The tags assigned to the wiki.
+	 */
+	public function extractVar( $setting, $wiki, $suffix, &$var, $params = array(), $wikiTags = array() ) {
+		$value = $this->get( $setting, $wiki, $suffix, $params, $wikiTags );
 		if ( !is_null( $value ) ) {
 			$var = $value;
 		}
 	}
-	
-	function extractGlobal( $setting, $wiki, $suffix, $params ) {
-		$value = $this->get( $setting, $wiki, $suffix, $params );
+
+	/**
+	 * Retrieves the value of a given setting, and places it in its corresponding global variable.
+	 * @param $settingName String ID of the setting name to retrieve
+	 * @param $wiki String Wiki ID of the wiki in question.
+	 * @param $suffix String The suffix of the wiki in question.
+	 * @param $params Array List of parameters. $.'key' is replaced by $value in all returned data.
+	 * @param $wikiTags Array The tags assigned to the wiki.
+	 */
+	public function extractGlobal( $setting, $wiki, $suffix = null, $params = array(), $wikiTags = array() ) {
+		$params = $this->mergeParams( $wiki, $suffix, $params, $wikiTags );
+		$this->extractGlobalSetting( $setting, $wiki, $params );
+	}
+
+	public function extractGlobalSetting( $setting, $wiki, $params ) {
+		$value = $this->getSetting( $setting, $wiki, $params );
 		if ( !is_null( $value ) ) {
-			$GLOBALS[$setting] = $value;
+			if (substr($setting,0,1) == '+' && is_array($value)) {
+				$setting = substr($setting,1);
+				if ( is_array($GLOBALS[$setting]) ) {
+					$GLOBALS[$setting] = self::arrayMerge( $GLOBALS[$setting], $value );
+				} else {
+					$GLOBALS[$setting] = $value;
+				}
+			} else {
+				$GLOBALS[$setting] = $value;
+			}
 		}
 	}
 
-	function extractAllGlobals( $wiki, $suffix, $params ) {
+	/**
+	 * Retrieves the values of all settings, and places them in their corresponding global variables.
+	 * @param $wiki String Wiki ID of the wiki in question.
+	 * @param $suffix String The suffix of the wiki in question.
+	 * @param $params Array List of parameters. $.'key' is replaced by $value in all returned data.
+	 * @param $wikiTags Array The tags assigned to the wiki.
+	 */
+	public function extractAllGlobals( $wiki, $suffix = null, $params = array(), $wikiTags = array() ) {
+		$params = $this->mergeParams( $wiki, $suffix, $params, $wikiTags );
 		foreach ( $this->settings as $varName => $setting ) {
-			$this->extractGlobal( $varName, $wiki, $suffix, $params );
+			$this->extractGlobalSetting( $varName, $wiki, $params );
 		}
 	}
-}
 
-	
-?>
+	/**
+	 * Return specific settings for $wiki
+	 * See the documentation of self::$siteParamsCallback for more in-depth
+	 * documentation about this function
+	 *
+	 * @param $wiki String
+	 * @return array
+	 */
+	protected function getWikiParams( $wiki ){
+		static $default = array(
+			'suffix' => null,
+			'lang' => null,
+			'tags' => array(),
+			'params' => array(),
+		);
+
+		if( !is_callable( $this->siteParamsCallback ) )
+			return $default;
+
+		$ret = call_user_func_array( $this->siteParamsCallback, array( $this, $wiki ) );
+		# Validate the returned value
+		if( !is_array( $ret ) )
+			return $default;
+
+		foreach( $default as $name => $def ){
+			if( !isset( $ret[$name] ) || ( is_array( $default[$name] ) && !is_array( $ret[$name] ) ) )
+				$ret[$name] = $default[$name];
+		}
+
+		return $ret;
+	}
+
+	/**
+	 * Merge params beetween the ones passed to the function and the ones given
+	 * by self::$siteParamsCallback for backward compatibility
+	 * Values returned by self::getWikiParams() have the priority.
+	 *
+	 * @param $wiki String Wiki ID of the wiki in question.
+	 * @param $suffix String The suffix of the wiki in question.
+	 * @param $params Array List of parameters. $.'key' is replaced by $value in
+	 *                all returned data.
+	 * @param $wikiTags Array The tags assigned to the wiki.
+	 * @return array
+	 */
+	protected function mergeParams( $wiki, $suffix, /*array*/ $params, /*array*/ $wikiTags ){
+		$ret = $this->getWikiParams( $wiki );
+
+		if( is_null( $ret['suffix'] ) )
+			$ret['suffix'] = $suffix;
+
+		$ret['tags'] = array_unique( array_merge( $ret['tags'], $wikiTags ) );
+
+		$ret['params'] += $params;
+
+		// Automatically fill that ones if needed
+		if( !isset( $ret['params']['lang'] ) && !is_null( $ret['lang'] ) )
+			$ret['params']['lang'] = $ret['lang'];
+		if( !isset( $ret['params']['site'] ) && !is_null( $ret['suffix'] ) )
+			$ret['params']['site'] = $ret['suffix'];
+
+		return $ret;
+	}
+
+	/**
+	 * Work out the site and language name from a database name
+	 * @param $db
+	 */
+	public function siteFromDB( $db ) {
+		// Allow override
+		$def = $this->getWikiParams( $db );
+		if( !is_null( $def['suffix'] ) && !is_null( $def['lang'] ) )
+			return array( $def['suffix'], $def['lang'] );
+
+		$site = null;
+		$lang = null;
+		foreach ( $this->suffixes as $suffix ) {
+			if ( $suffix === '' ) {
+				$site = '';
+				$lang = $db;
+				break;
+			} elseif ( substr( $db, -strlen( $suffix ) ) == $suffix ) {
+				$site = $suffix == 'wiki' ? 'wikipedia' : $suffix;
+				$lang = substr( $db, 0, strlen( $db ) - strlen( $suffix ) );
+				break;
+			}
+		}
+		$lang = str_replace( '_', '-', $lang );
+		return array( $site, $lang );
+	}
+
+	/**
+	 * Returns true if the given vhost is handled locally.
+	 * @param $vhost String
+	 * @return bool
+	 */
+	public function isLocalVHost( $vhost ) {
+		return in_array( $vhost, $this->localVHosts );
+	}
+
+	/**
+	 * Merge multiple arrays together.
+	 * On encountering duplicate keys, merge the two, but ONLY if they're arrays.
+	 * PHP's array_merge_recursive() merges ANY duplicate values into arrays,
+	 * which is not fun
+	 */
+	static function arrayMerge( $array1/* ... */ ) {
+		$out = $array1;
+		for( $i=1; $i < func_num_args(); $i++ ) {
+			foreach( func_get_arg( $i ) as $key => $value ) {
+				if ( isset($out[$key]) && is_array($out[$key]) && is_array($value) ) {
+					$out[$key] = self::arrayMerge( $out[$key], $value );
+				} elseif ( !isset($out[$key]) || !$out[$key] && !is_numeric($key) ) {
+					// Values that evaluate to true given precedence, for the primary purpose of merging permissions arrays.
+					$out[$key] = $value;
+				} elseif ( is_numeric( $key ) ) {
+					$out[] = $value;
+				}
+			}
+		}
+
+		return $out;
+	}
+}
+}