Merge "New hook for filters on Special:Contributions form"

[lhc/web/wiklou.git] / includes / specials / SpecialRedirect.php

diff --git a/includes/specials/SpecialRedirect.php b/includes/specials/SpecialRedirect.php
index 72d21eb..328aa11 100644 (file)
--- a/includes/specials/SpecialRedirect.php
+++ b/includes/specials/SpecialRedirect.php
@@ -158,6 +158,93 @@ class SpecialRedirect extends FormSpecialPage {
                ) );
        }
 
+       /**
+        * Handle Special:Redirect/logid/xxx
+        * (by redirecting to index.php?title=Special:Log)
+        *
+        * @since 1.27
+        * @return string|null Url to redirect to, or null if $mValue is invalid.
+        */
+       function dispatchLog() {
+               $logid = $this->mValue;
+               if ( !ctype_digit( $logid ) ) {
+                       return null;
+               }
+               $logid = (int)$logid;
+               if ( $logid === 0 ) {
+                       return null;
+               }
+
+               $logparams = array(
+                       'log_id',
+                       'log_timestamp',
+                       'log_type',
+                       'log_user_text',
+               );
+
+               $dbr = wfGetDB( DB_SLAVE );
+
+               // Gets the nested SQL statement which
+               // returns timestamp of the log with the given log ID
+               $inner = $dbr->selectSQLText(
+                       'logging',
+                       array( 'log_timestamp' ),
+                       array( 'log_id' => $logid )
+               );
+
+               // Returns all fields mentioned in $logparams of the logs
+               // with the same timestamp as the one returned by the statement above
+               $logsSameTimestamps = $dbr->select(
+                       'logging',
+                       $logparams,
+                       array( "log_timestamp = ($inner)" )
+               );
+               if ( $logsSameTimestamps->numRows() === 0 ) {
+                       return null;
+               }
+
+               // Stores the row with the same log ID as the one given
+               $rowMain = array();
+               foreach ( $logsSameTimestamps as $row ) {
+                       if ( (int)$row->log_id === $logid ) {
+                               $rowMain = $row;
+                       }
+               }
+
+               array_shift( $logparams );
+
+               // Stores all the rows with the same values in each column
+               // as $rowMain
+               foreach ( $logparams as $cond ) {
+                       $matchedRows = array();
+                       foreach ( $logsSameTimestamps as $row ) {
+                               if ( $row->$cond === $rowMain->$cond ) {
+                                       $matchedRows[] = $row;
+                               }
+                       }
+                       if ( count( $matchedRows ) === 1 ) {
+                               break;
+                       }
+                       $logsSameTimestamps = $matchedRows;
+               }
+               $query = array( 'title' => 'Special:Log', 'limit' => count( $matchedRows ) );
+
+               // A map of database field names from table 'logging' to the values of $logparams
+               $keys = array(
+                       'log_timestamp' => 'offset',
+                       'log_type' => 'type',
+                       'log_user_text' => 'user'
+               );
+
+               foreach ( $logparams as $logKey ) {
+                       $query[$keys[$logKey]] = $matchedRows[0]->$logKey;
+               }
+               $query['offset'] = $query['offset'] + 1;
+               $url = $query;
+
+               return wfAppendQuery( wfScript( 'index' ), $url );
+       }
+
        /**
         * Use appropriate dispatch* method to obtain a redirection URL,
         * and either: redirect, set a 404 error code and error message,
@@ -181,6 +268,9 @@ class SpecialRedirect extends FormSpecialPage {
                        case 'page':
                                $url = $this->dispatchPage();
                                break;
+                       case 'logid':
+                               $url = $this->dispatchLog();
+                               break;
                        default:
                                $this->getOutput()->setStatusCode( 404 );
                                $url = null;
@@ -207,11 +297,12 @@ class SpecialRedirect extends FormSpecialPage {
                $ns = array(
                        // subpage => message
                        // Messages: redirect-user, redirect-page, redirect-revision,
-                       // redirect-file
+                       // redirect-file, redirect-logid
                        'user' => $mp . '-user',
                        'page' => $mp . '-page',
                        'revision' => $mp . '-revision',
                        'file' => $mp . '-file',
+                       'logid' => $mp . '-logid',
                );
                $a = array();
                $a['type'] = array(
@@ -269,13 +360,28 @@ class SpecialRedirect extends FormSpecialPage {
         */
        protected function getSubpagesForPrefixSearch() {
                return array(
-                       "file",
-                       "page",
-                       "revision",
-                       "user",
+                       'file',
+                       'page',
+                       'revision',
+                       'user',
+                       'logid',
                );
        }
 
+       /**
+        * @return bool
+        */
+       public function requiresWrite() {
+               return false;
+       }
+
+       /**
+        * @return bool
+        */
+       public function requiresUnblock() {
+               return false;
+       }
+
        protected function getGroupName() {
                return 'redirects';
        }