* changes, so this allows sysops to combat a busy vandal without bothering
* other users.
*
+ * If the option verify is set this function will return the link only in case the
+ * revision can be reverted. Please note that due to performance limitations
+ * it might be assumed that a user isn't the only contributor of a page while
+ * (s)he is, which will lead to useless rollback links. Furthermore this wont
+ * work if $wgShowRollbackEditCount is disabled, so this can only function
+ * as an additional check.
+ *
+ * If the option noBrackets is set the rollback link wont be enclosed in []
+ *
* @param $rev Revision object
* @param $context IContextSource context to use or null for the main context.
+ * @param $options array
* @return string
*/
- public static function generateRollback( $rev, IContextSource $context = null ) {
+ public static function generateRollback( $rev, IContextSource $context = null, $options = array( 'verify' ) ) {
if ( $context === null ) {
$context = RequestContext::getMain();
}
+ $editCount = false;
+ if ( in_array( 'verify', $options ) ) {
+ $editCount = self::getRollbackEditCount( $rev, true );
+ if ( $editCount === false ) {
+ return '';
+ }
+ }
- return '<span class="mw-rollback-link">'
- . $context->msg( 'brackets' )->rawParams(
- self::buildRollbackLink( $rev, $context ) )->plain()
- . '</span>';
+ $inner = self::buildRollbackLink( $rev, $context, $editCount );
+
+ if ( !in_array( 'noBrackets', $options ) ) {
+ $inner = $context->msg( 'brackets' )->rawParams( $inner )->plain();
+ }
+
+ return '<span class="mw-rollback-link">' . $inner . '</span>';
+ }
+
+ /**
+ * This function will return the number of revisions which a rollback
+ * would revert and, if $verify is set it will verify that a revision
+ * can be reverted (that the user isn't the only contributor and the
+ * revision we might rollback to isn't deleted). These checks can only
+ * function as an additional check as this function only checks against
+ * the last $wgShowRollbackEditCount edits.
+ *
+ * Returns null if $wgShowRollbackEditCount is disabled or false if $verify
+ * is set and the user is the only contributor of the page.
+ *
+ * @param $rev Revision object
+ * @param $verify Bool Try to verfiy that this revision can really be rolled back
+ * @return integer|bool|null
+ */
+ public static function getRollbackEditCount( $rev, $verify ) {
+ global $wgShowRollbackEditCount;
+ if ( !is_int( $wgShowRollbackEditCount ) || !$wgShowRollbackEditCount > 0 ) {
+ // Nothing has happened, indicate this by returning 'null'
+ return null;
+ }
+
+ $dbr = wfGetDB( DB_SLAVE );
+
+ // Up to the value of $wgShowRollbackEditCount revisions are counted
+ $res = $dbr->select(
+ 'revision',
+ array( 'rev_user_text', 'rev_deleted' ),
+ // $rev->getPage() returns null sometimes
+ array( 'rev_page' => $rev->getTitle()->getArticleID() ),
+ __METHOD__,
+ array(
+ 'USE INDEX' => array( 'revision' => 'page_timestamp' ),
+ 'ORDER BY' => 'rev_timestamp DESC',
+ 'LIMIT' => $wgShowRollbackEditCount + 1
+ )
+ );
+
+ $editCount = 0;
+ $moreRevs = false;
+ foreach ( $res as $row ) {
+ if ( $rev->getRawUserText() != $row->rev_user_text ) {
+ if ( $verify && ( $row->rev_deleted & Revision::DELETED_TEXT || $row->rev_deleted & Revision::DELETED_USER ) ) {
+ // If the user or the text of the revision we might rollback to is deleted in some way we can't rollback
+ // Similar to the sanity checks in WikiPage::commitRollback
+ return false;
+ }
+ $moreRevs = true;
+ break;
+ }
+ $editCount++;
+ }
+
+ if ( $verify && $editCount <= $wgShowRollbackEditCount && !$moreRevs ) {
+ // We didn't find at least $wgShowRollbackEditCount revisions made by the current user
+ // and there weren't any other revisions. That means that the current user is the only
+ // editor, so we can't rollback
+ return false;
+ }
+ return $editCount;
}
/**
*
* @param $rev Revision object
* @param $context IContextSource context to use or null for the main context.
+ * @param $editCount integer Number of edits that would be reverted
* @return String: HTML fragment
*/
- public static function buildRollbackLink( $rev, IContextSource $context = null ) {
+ public static function buildRollbackLink( $rev, IContextSource $context = null, $editCount = false ) {
global $wgShowRollbackEditCount, $wgMiserMode;
// To config which pages are effected by miser mode
}
if( !$disableRollbackEditCount && is_int( $wgShowRollbackEditCount ) && $wgShowRollbackEditCount > 0 ) {
- $dbr = wfGetDB( DB_SLAVE );
-
- // Up to the value of $wgShowRollbackEditCount revisions are counted
- $res = $dbr->select( 'revision',
- array( 'rev_id', 'rev_user_text' ),
- // $rev->getPage() returns null sometimes
- array( 'rev_page' => $rev->getTitle()->getArticleID() ),
- __METHOD__,
- array( 'USE INDEX' => 'page_timestamp',
- 'ORDER BY' => 'rev_timestamp DESC',
- 'LIMIT' => $wgShowRollbackEditCount + 1 )
- );
-
- $editCount = 0;
- while( $row = $dbr->fetchObject( $res ) ) {
- if( $rev->getUserText() != $row->rev_user_text ) {
- break;
- }
- $editCount++;
+ if ( !is_numeric( $editCount ) ) {
+ $editCount = self::getRollbackEditCount( $rev, false );
}
if( $editCount > $wgShowRollbackEditCount ) {
dépôts / lhc / web / wiklou.git / commitdiff