From: Brion Vibber <brion@users.mediawiki.org>
Date: Wed, 16 Jan 2008 23:08:19 +0000 (+0000)
Subject: Quick hack in: $wgDeleteRevisionsLimit and 'bigdelete' permission.
X-Git-Tag: 1.31.0-rc.0~49951
X-Git-Url: https://git.cyclocoop.org/%27.WWW_URL.%27admin/?a=commitdiff_plain;h=40e0f29922fdd501dcf8cfc6625806627016754d;p=lhc%2Fweb%2Fwiklou.git

Quick hack in: $wgDeleteRevisionsLimit and 'bigdelete' permission.
Should keep us from the couple-of-times-yearly "oops someone deleted the sandbox" fun.
---

diff --git a/includes/Article.php b/includes/Article.php
index 1749a8d579..eace63491a 100644
--- a/includes/Article.php
+++ b/includes/Article.php
@@ -1942,6 +1942,17 @@ class Article {
 			$wgOut->showPermissionsErrorPage( $permission_errors );
 			return;
 		}
+		
+		# Hack for big sites
+		if( $this->isBigDeletion() ) {
+			$permission_errors = $this->mTitle->getUserPermissionsErrors(
+				'bigdelete', $wgUser );
+
+			if( count( $permission_errors ) > 0 ) {
+				$wgOut->showPermissionsErrorPage( $permission_errors );
+				return;
+			}
+		}
 
 		$wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
 
@@ -1976,6 +1987,30 @@ class Article {
 		
 		return $this->confirmDelete( '', $reason );
 	}
+	
+	/**
+	 * @return bool whether or not the page surpasses $wgDeleteRevisionsLimit revisions
+	 */
+	function isBigDeletion() {
+		global $wgDeleteRevisionsLimit;
+		if( $wgDeleteRevisionsLimit ) {
+			$revCount = $this->estimateRevisionCount();
+			return $revCount > $wgDeleteRevisionsLimit;
+		}
+		return false;
+	}
+	
+	/**
+	 * @return int approximate revision count
+	 */
+	function estimateRevisionCount() {
+		$dbr = wfGetDB();
+		// For an exact count...
+		//return $dbr->selectField( 'revision', 'COUNT(*)',
+		//	array( 'rev_page' => $this->getId() ), __METHOD__ );
+		return $dbr->estimateRowCount( 'revision', '*',
+		 	array( 'rev_page' => $this->getId() ), __METHOD__ );
+	}
 
 	/**
 	 * Get the last N authors
diff --git a/includes/DefaultSettings.php b/includes/DefaultSettings.php
index e0fff685d2..efea489be3 100644
--- a/includes/DefaultSettings.php
+++ b/includes/DefaultSettings.php
@@ -1099,6 +1099,7 @@ $wgGroupPermissions['bot'  ]['apihighlimits']   = true;
 $wgGroupPermissions['sysop']['block']           = true;
 $wgGroupPermissions['sysop']['createaccount']   = true;
 $wgGroupPermissions['sysop']['delete']          = true;
+$wgGroupPermissions['sysop']['bigdelete']       = true; // can be separately configured for pages with > $wgDeleteRevisionsLimit revs
 $wgGroupPermissions['sysop']['deletedhistory'] 	= true; // can view deleted history entries, but not see or restore the text
 $wgGroupPermissions['sysop']['undelete']	= true;
 $wgGroupPermissions['sysop']['editinterface']   = true;
@@ -1247,6 +1248,12 @@ $wgAutopromote = array(
  */
 $wgAddGroups = $wgRemoveGroups = array();
 
+/**
+ * Optional to restrict deletion of pages with higher revision counts
+ * to users with the 'bigdelete' permission. (Default given to sysops.)
+ */
+$wgDeleteRevisionsLimit = 0;
+
 # Proxy scanner settings
 #