update to MediaWiki 1.17.0

1 files changed, 454 insertions, 0 deletions

diff --git a/includes/revisiondelete/RevisionDeleteAbstracts.php b/includes/revisiondelete/RevisionDeleteAbstracts.php
new file mode 100644
index 00000000..073c25ba
--- /dev/null
+++ b/includes/revisiondelete/RevisionDeleteAbstracts.php
@@ -0,0 +1,454 @@
+<?php
+
+/**
+ * Abstract base class for a list of deletable items
+ */
+abstract class RevDel_List {
+	var $special, $title, $ids, $res, $current;
+	var $type = null; // override this
+	var $idField = null; // override this
+	var $dateField = false; // override this
+	var $authorIdField = false; // override this
+	var $authorNameField = false; // override this
+
+	/**
+	 * @param $special The parent SpecialPage
+	 * @param $title The target title
+	 * @param $ids Array of IDs
+	 */
+	public function __construct( $special, $title, $ids ) {
+		$this->special = $special;
+		$this->title = $title;
+		$this->ids = $ids;
+	}
+
+	/**
+	 * Get the internal type name of this list. Equal to the table name.
+	 */
+	public function getType() {
+		return $this->type;
+	}
+
+	/**
+	 * Get the DB field name associated with the ID list
+	 */
+	public function getIdField() {
+		return $this->idField;
+	}
+
+	/**
+	 * Get the DB field name storing timestamps
+	 */
+	public function getTimestampField() {
+		return $this->dateField;
+	}
+
+	/**
+	 * Get the DB field name storing user ids
+	 */
+	public function getAuthorIdField() {
+		return $this->authorIdField;
+	}
+
+	/**
+	 * Get the DB field name storing user names
+	 */
+	public function getAuthorNameField() {
+		return $this->authorNameField;
+	}
+	/**
+	 * Set the visibility for the revisions in this list. Logging and 
+	 * transactions are done here.
+	 *
+	 * @param $params Associative array of parameters. Members are:
+	 *     value:       The integer value to set the visibility to
+	 *     comment:     The log comment.
+	 * @return Status
+	 */
+	public function setVisibility( $params ) {
+		$bitPars = $params['value'];
+		$comment = $params['comment'];
+
+		$this->res = false;
+		$dbw = wfGetDB( DB_MASTER );
+		$this->doQuery( $dbw );
+		$dbw->begin();
+		$status = Status::newGood();
+		$missing = array_flip( $this->ids );
+		$this->clearFileOps();
+		$idsForLog = array();
+		$authorIds = $authorIPs = array();
+
+		for ( $this->reset(); $this->current(); $this->next() ) {
+			$item = $this->current();
+			unset( $missing[ $item->getId() ] );
+
+			$oldBits = $item->getBits();
+			// Build the actual new rev_deleted bitfield
+			$newBits = SpecialRevisionDelete::extractBitfield( $bitPars, $oldBits );
+
+			if ( $oldBits == $newBits ) {
+				$status->warning( 'revdelete-no-change', $item->formatDate(), $item->formatTime() );
+				$status->failCount++;
+				continue;
+			} elseif ( $oldBits == 0 && $newBits != 0 ) {
+				$opType = 'hide';
+			} elseif ( $oldBits != 0 && $newBits == 0 ) {
+				$opType = 'show';
+			} else {
+				$opType = 'modify';
+			}
+
+			if ( $item->isHideCurrentOp( $newBits ) ) {
+				// Cannot hide current version text
+				$status->error( 'revdelete-hide-current', $item->formatDate(), $item->formatTime() );
+				$status->failCount++;
+				continue;
+			}
+			if ( !$item->canView() ) {
+				// Cannot access this revision
+				$msg = ($opType == 'show') ?
+					'revdelete-show-no-access' : 'revdelete-modify-no-access';
+				$status->error( $msg, $item->formatDate(), $item->formatTime() );
+				$status->failCount++;
+				continue;
+			}
+			// Cannot just "hide from Sysops" without hiding any fields
+			if( $newBits == Revision::DELETED_RESTRICTED ) {
+				$status->warning( 'revdelete-only-restricted', $item->formatDate(), $item->formatTime() );
+				$status->failCount++;
+				continue;
+			} 
+
+			// Update the revision
+			$ok = $item->setBits( $newBits );
+
+			if ( $ok ) {
+				$idsForLog[] = $item->getId();
+				$status->successCount++;
+				if( $item->getAuthorId() > 0 ) {
+					$authorIds[] = $item->getAuthorId();
+				} else if( IP::isIPAddress( $item->getAuthorName() ) ) {
+					$authorIPs[] = $item->getAuthorName();
+				}
+			} else {
+				$status->error( 'revdelete-concurrent-change', $item->formatDate(), $item->formatTime() );
+				$status->failCount++;
+			}
+		}
+
+		// Handle missing revisions
+		foreach ( $missing as $id => $unused ) {
+			$status->error( 'revdelete-modify-missing', $id );
+			$status->failCount++;
+		}
+
+		if ( $status->successCount == 0 ) {
+			$status->ok = false;
+			$dbw->rollback();
+			return $status;
+		}
+
+		// Save success count 
+		$successCount = $status->successCount;
+
+		// Move files, if there are any
+		$status->merge( $this->doPreCommitUpdates() );
+		if ( !$status->isOK() ) {
+			// Fatal error, such as no configured archive directory
+			$dbw->rollback();
+			return $status;
+		}
+
+		// Log it
+		$this->updateLog( array(
+			'title' => $this->title, 
+			'count' => $successCount, 
+			'newBits' => $newBits, 
+			'oldBits' => $oldBits,
+			'comment' => $comment,
+			'ids' => $idsForLog,
+			'authorIds' => $authorIds,
+			'authorIPs' => $authorIPs
+		) );
+		$dbw->commit();
+
+		// Clear caches
+		$status->merge( $this->doPostCommitUpdates() );
+		return $status;
+	}
+
+	/**
+	 * Reload the list data from the master DB. This can be done after setVisibility()
+	 * to allow $item->getHTML() to show the new data.
+	 */
+	function reloadFromMaster() {
+		$dbw = wfGetDB( DB_MASTER );
+		$this->res = $this->doQuery( $dbw );
+	}
+
+	/**
+	 * Record a log entry on the action
+	 * @param $params Associative array of parameters:
+	 *     newBits:         The new value of the *_deleted bitfield
+	 *     oldBits:         The old value of the *_deleted bitfield. 
+	 *     title:           The target title
+	 *     ids:             The ID list
+	 *     comment:         The log comment
+	 *     authorsIds:      The array of the user IDs of the offenders
+	 *     authorsIPs:      The array of the IP/anon user offenders
+	 */
+	protected function updateLog( $params ) {
+		// Get the URL param's corresponding DB field
+		$field = RevisionDeleter::getRelationType( $this->getType() );
+		if( !$field ) {
+			throw new MWException( "Bad log URL param type!" );
+		}
+		// Put things hidden from sysops in the oversight log
+		if ( ( $params['newBits'] | $params['oldBits'] ) & $this->getSuppressBit() ) {
+			$logType = 'suppress';
+		} else {
+			$logType = 'delete';
+		}
+		// Add params for effected page and ids
+		$logParams = $this->getLogParams( $params );
+		// Actually add the deletion log entry
+		$log = new LogPage( $logType );
+		$logid = $log->addEntry( $this->getLogAction(), $params['title'],
+			$params['comment'], $logParams );
+		// Allow for easy searching of deletion log items for revision/log items
+		$log->addRelations( $field, $params['ids'], $logid );
+		$log->addRelations( 'target_author_id', $params['authorIds'], $logid );
+		$log->addRelations( 'target_author_ip', $params['authorIPs'], $logid );
+	}
+
+	/**
+	 * Get the log action for this list type
+	 */
+	public function getLogAction() {
+		return 'revision';
+	}
+
+	/**
+	 * Get log parameter array.
+	 * @param $params Associative array of log parameters, same as updateLog()
+	 * @return array
+	 */
+	public function getLogParams( $params ) {
+		return array(
+			$this->getType(),
+			implode( ',', $params['ids'] ),
+			"ofield={$params['oldBits']}",
+			"nfield={$params['newBits']}"
+		);
+	}
+
+	/**
+	 * Initialise the current iteration pointer
+	 */
+	protected function initCurrent() {
+		$row = $this->res->current();
+		if ( $row ) {
+			$this->current = $this->newItem( $row );
+		} else {
+			$this->current = false;
+		}
+	}
+
+	/**
+	 * Start iteration. This must be called before current() or next(). 
+	 * @return First list item
+	 */
+	public function reset() {
+		if ( !$this->res ) {
+			$this->res = $this->doQuery( wfGetDB( DB_SLAVE ) );
+		} else {
+			$this->res->rewind();
+		}
+		$this->initCurrent();
+		return $this->current;
+	}
+
+	/**
+	 * Get the current list item, or false if we are at the end
+	 */
+	public function current() {
+		return $this->current;
+	}
+
+	/**
+	 * Move the iteration pointer to the next list item, and return it.
+	 */
+	public function next() {
+		$this->res->next();
+		$this->initCurrent();
+		return $this->current;
+	}
+	
+	/**
+	 * Get the number of items in the list.
+	 */
+	public function length() {
+		if( !$this->res ) {
+			return 0;
+		} else {
+			return $this->res->numRows();
+		}
+	}
+
+	/**
+	 * Clear any data structures needed for doPreCommitUpdates() and doPostCommitUpdates()
+	 * STUB
+	 */
+	public function clearFileOps() {
+	}
+
+	/** 
+	 * A hook for setVisibility(): do batch updates pre-commit.
+	 * STUB
+	 * @return Status
+	 */
+	public function doPreCommitUpdates() {
+		return Status::newGood();
+	}
+
+	/**
+	 * A hook for setVisibility(): do any necessary updates post-commit. 
+	 * STUB
+	 * @return Status 
+	 */
+	public function doPostCommitUpdates() {
+		return Status::newGood();
+	}
+
+	/**
+	 * Create an item object from a DB result row
+	 * @param $row stdclass
+	 */
+	abstract public function newItem( $row );
+
+	/**
+	 * Do the DB query to iterate through the objects.
+	 * @param $db Database object to use for the query
+	 */
+	abstract public function doQuery( $db );
+
+	/**
+	 * Get the integer value of the flag used for suppression
+	 */
+	abstract public function getSuppressBit();
+}
+
+/**
+ * Abstract base class for deletable items
+ */
+abstract class RevDel_Item {
+	/** The parent SpecialPage */
+	var $special;
+
+	/** The parent RevDel_List */
+	var $list;
+
+	/** The DB result row */
+	var $row;
+
+	/** 
+	 * @param $list RevDel_List
+	 * @param $row DB result row
+	 */
+	public function __construct( $list, $row ) {
+		$this->special = $list->special;
+		$this->list = $list;
+		$this->row = $row;
+	}
+
+	/**
+	 * Get the ID, as it would appear in the ids URL parameter
+	 */
+	public function getId() {
+		$field = $this->list->getIdField();
+		return $this->row->$field;
+	}
+
+	/**
+	 * Get the date, formatted with $wgLang
+	 */
+	public function formatDate() {
+		global $wgLang;
+		return $wgLang->date( $this->getTimestamp() );
+	}
+
+	/**
+	 * Get the time, formatted with $wgLang
+	 */
+	public function formatTime() {
+		global $wgLang;
+		return $wgLang->time( $this->getTimestamp() );
+	}
+
+	/**
+	 * Get the timestamp in MW 14-char form
+	 */
+	public function getTimestamp() {
+		$field = $this->list->getTimestampField();
+		return wfTimestamp( TS_MW, $this->row->$field );
+	}
+	
+	/**
+	 * Get the author user ID
+	 */	
+	public function getAuthorId() {
+		$field = $this->list->getAuthorIdField();
+		return intval( $this->row->$field );
+	}
+
+	/**
+	 * Get the author user name
+	 */	
+	public function getAuthorName() {
+		$field = $this->list->getAuthorNameField();
+		return strval( $this->row->$field );
+	}
+
+	/** 
+	 * Returns true if the item is "current", and the operation to set the given
+	 * bits can't be executed for that reason
+	 * STUB
+	 */
+	public function isHideCurrentOp( $newBits ) {
+		return false;
+	}
+
+	/**
+	 * Returns true if the current user can view the item
+	 */
+	abstract public function canView();
+	
+	/**
+	 * Returns true if the current user can view the item text/file
+	 */
+	abstract public function canViewContent();
+
+	/**
+	 * Get the current deletion bitfield value
+	 */
+	abstract public function getBits();
+
+	/**
+	 * Get the HTML of the list item. Should be include <li></li> tags.
+	 * This is used to show the list in HTML form, by the special page.
+	 */
+	abstract public function getHTML();
+
+	/**
+	 * Set the visibility of the item. This should do any necessary DB queries.
+	 *
+	 * The DB update query should have a condition which forces it to only update
+	 * if the value in the DB matches the value fetched earlier with the SELECT. 
+	 * If the update fails because it did not match, the function should return 
+	 * false. This prevents concurrency problems.
+	 *
+	 * @return boolean success
+	 */
+	abstract public function setBits( $newBits );
+}