Make Special:Redirect page redirect to log events by ID

Bug: T71107
Change-Id: I48bc6ae31e9f841f1cfeed6167c0c13c58e53f4a

diff --git a/includes/specials/SpecialRedirect.php b/includes/specials/SpecialRedirect.php
index 553e2b1..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(
@@ -273,6 +364,7 @@ class SpecialRedirect extends FormSpecialPage {
                        'page',
                        'revision',
                        'user',
+                       'logid',
                );
        }
 

diff --git a/languages/i18n/en.json b/languages/i18n/en.json
index f1932d8..f1c354a 100644 (file)
--- a/languages/i18n/en.json
+++ b/languages/i18n/en.json
@@ -3542,10 +3542,10 @@
        "version-libraries-license": "License",
        "version-libraries-description": "Description",
        "version-libraries-authors": "Authors",
-       "redirect": "Redirect by file, user, page or revision ID",
+       "redirect": "Redirect by file, user, page, revision, or log ID",
        "redirect-legend": "Redirect to a file or page",
        "redirect-text": "",
-       "redirect-summary": "This special page redirects to a file (given the filename), a page (given a revision ID or page ID), or a user page (given a numeric user ID). Usage: [[{{#Special:Redirect}}/file/Example.jpg]], [[{{#Special:Redirect}}/page/64308]], [[{{#Special:Redirect}}/revision/328429]], or [[{{#Special:Redirect}}/user/101]].",
+       "redirect-summary": "This special page redirects to a file (given the filename), a page (given a revision ID or page ID), a user page (given a numeric user ID), or a log entry (given the log ID). Usage: [[{{#Special:Redirect}}/file/Example.jpg]], [[{{#Special:Redirect}}/page/64308]], [[{{#Special:Redirect}}/revision/328429]], [[{{#Special:Redirect}}/user/101]], or [[{{#Special:Redirect}}/logid/186]].",
        "redirect-submit": "Go",
        "redirect-lookup": "Lookup:",
        "redirect-value": "Value:",
@@ -3553,6 +3553,7 @@
        "redirect-page": "Page ID",
        "redirect-revision": "Page revision",
        "redirect-file": "Filename",
+       "redirect-logid": "Log ID",
        "redirect-not-exists": "Value not found",
        "fileduplicatesearch": "Search for duplicate files",
        "fileduplicatesearch-summary": "Search for duplicate files based on hash values.",

diff --git a/languages/i18n/qqq.json b/languages/i18n/qqq.json
index 28e5271..06f4fe6 100644 (file)
--- a/languages/i18n/qqq.json
+++ b/languages/i18n/qqq.json
@@ -3728,6 +3728,7 @@
        "redirect-page": "Description of lookup type for [[Special:Redirect]].\n{{Identical|Page ID}}",
        "redirect-revision": "Description of lookup type for [[Special:Redirect]].\n\nThis means \"Page revision '''ID'''\".",
        "redirect-file": "Description of lookup type for [[Special:Redirect]].\n{{Identical|Filename}}",
+       "redirect-logid": "Description of lookup type for [[Special:Redirect]].\n{{Identical|Log ID}}",
        "redirect-not-exists": "Used as error message in [[Special:Redirect]]",
        "fileduplicatesearch": "Name of special page [[Special:FileDuplicateSearch]].",
        "fileduplicatesearch-summary": "Summary of [[Special:FileDuplicateSearch]]",