X-Git-Url: https://git.heureux-cyclage.org/?a=blobdiff_plain;f=includes%2FRevision.php;h=53b792e509fd889ed477983f6f22057ac10ea115;hb=01f36b721f6fb60000b625fd681993d50ebd0e40;hp=5145033682d7530ae89c17db30df4407c6f57808;hpb=7d3bd1482241553266d4c3cb7ea91f685c3e1bb2;p=lhc%2Fweb%2Fwiklou.git diff --git a/includes/Revision.php b/includes/Revision.php index 5145033682..53b792e509 100644 --- a/includes/Revision.php +++ b/includes/Revision.php @@ -1,9 +1,50 @@ intval( $id ) ) ); + return Revision::newFromConds( array( 'rev_id' => intval( $id ) ) ); } /** @@ -34,13 +73,13 @@ class Revision { * to that title, will return null. * * @param $title Title - * @param $id Integer + * @param $id Integer (optional) * @return Revision or null */ public static function newFromTitle( $title, $id = 0 ) { - $conds = array( - 'page_namespace' => $title->getNamespace(), - 'page_title' => $title->getDBkey() + $conds = array( + 'page_namespace' => $title->getNamespace(), + 'page_title' => $title->getDBkey() ); if ( $id ) { // Use the specified ID @@ -50,26 +89,58 @@ class Revision { $dbw = wfGetDB( DB_MASTER ); $latest = $dbw->selectField( 'page', 'page_latest', $conds, __METHOD__ ); if ( $latest === false ) { - // Page does not exist - return null; + return null; // page does not exist } $conds['rev_id'] = $latest; } else { // Use a join to get the latest revision $conds[] = 'rev_id=page_latest'; } - $conds[] = 'page_id=rev_page'; + return Revision::newFromConds( $conds ); + } + + /** + * Load either the current, or a specified, revision + * that's attached to a given page ID. + * Returns null if no such revision can be found. + * + * @param $revId Integer + * @param $pageId Integer (optional) + * @return Revision or null + */ + public static function newFromPageId( $pageId, $revId = 0 ) { + $conds = array( 'page_id' => $pageId ); + if ( $revId ) { + $conds['rev_id'] = $revId; + } elseif ( wfGetLB()->getServerCount() > 1 ) { + // Get the latest revision ID from the master + $dbw = wfGetDB( DB_MASTER ); + $latest = $dbw->selectField( 'page', 'page_latest', $conds, __METHOD__ ); + if ( $latest === false ) { + return null; // page does not exist + } + $conds['rev_id'] = $latest; + } else { + $conds[] = 'rev_id = page_latest'; + } return Revision::newFromConds( $conds ); } /** * Make a fake revision object from an archive table row. This is queried * for permissions or even inserted (as in Special:Undelete) - * @todo Fixme: should be a subclass for RevisionDelete. [TS] + * @todo FIXME: Should be a subclass for RevisionDelete. [TS] + * + * @param $row + * @param $overrides array + * + * @return Revision */ public static function newFromArchiveRow( $row, $overrides = array() ) { + global $wgContentHandlerUseDB; + $attribs = $overrides + array( - 'page' => isset( $row->page_id ) ? $row->page_id : null, + 'page' => isset( $row->ar_page_id ) ? $row->ar_page_id : null, 'id' => isset( $row->ar_rev_id ) ? $row->ar_rev_id : null, 'comment' => $row->ar_comment, 'user' => $row->ar_user, @@ -78,14 +149,37 @@ class Revision { 'minor_edit' => $row->ar_minor_edit, 'text_id' => isset( $row->ar_text_id ) ? $row->ar_text_id : null, 'deleted' => $row->ar_deleted, - 'len' => $row->ar_len); + 'len' => $row->ar_len, + 'sha1' => isset( $row->ar_sha1 ) ? $row->ar_sha1 : null, + 'content_model' => isset( $row->ar_content_model ) ? $row->ar_content_model : null, + 'content_format' => isset( $row->ar_content_format ) ? $row->ar_content_format : null, + ); + + if ( !$wgContentHandlerUseDB ) { + unset( $attribs['content_model'] ); + unset( $attribs['content_format'] ); + } + if ( isset( $row->ar_text ) && !$row->ar_text_id ) { // Pre-1.5 ar_text row $attribs['text'] = self::getRevisionText( $row, 'ar_' ); + if ( $attribs['text'] === false ) { + throw new MWException( 'Unable to load text from archive row (possibly bug 22624)' ); + } } return new self( $attribs ); } + /** + * @since 1.19 + * + * @param $row + * @return Revision + */ + public static function newFromRow( $row ) { + return new self( $row ); + } + /** * Load a page revision from a given revision ID number. * Returns null if no such revision can be found. @@ -95,9 +189,7 @@ class Revision { * @return Revision or null */ public static function loadFromId( $db, $id ) { - return Revision::loadFromConds( $db, - array( 'page_id=rev_page', - 'rev_id' => intval( $id ) ) ); + return Revision::loadFromConds( $db, array( 'rev_id' => intval( $id ) ) ); } /** @@ -111,7 +203,7 @@ class Revision { * @return Revision or null */ public static function loadFromPageId( $db, $pageid, $id = 0 ) { - $conds = array( 'page_id=rev_page','rev_page' => intval( $pageid ), 'page_id'=>intval( $pageid ) ); + $conds = array( 'rev_page' => intval( $pageid ), 'page_id' => intval( $pageid ) ); if( $id ) { $conds['rev_id'] = intval( $id ); } else { @@ -136,12 +228,11 @@ class Revision { } else { $matchId = 'page_latest'; } - return Revision::loadFromConds( - $db, + return Revision::loadFromConds( $db, array( "rev_id=$matchId", - 'page_id=rev_page', - 'page_namespace' => $title->getNamespace(), - 'page_title' => $title->getDBkey() ) ); + 'page_namespace' => $title->getNamespace(), + 'page_title' => $title->getDBkey() ) + ); } /** @@ -149,18 +240,17 @@ class Revision { * WARNING: Timestamps may in some circumstances not be unique, * so this isn't the best key to use. * - * @param $db Database + * @param $db DatabaseBase * @param $title Title * @param $timestamp String * @return Revision or null */ public static function loadFromTimestamp( $db, $title, $timestamp ) { - return Revision::loadFromConds( - $db, + return Revision::loadFromConds( $db, array( 'rev_timestamp' => $db->timestamp( $timestamp ), - 'page_id=rev_page', - 'page_namespace' => $title->getNamespace(), - 'page_title' => $title->getDBkey() ) ); + 'page_namespace' => $title->getNamespace(), + 'page_title' => $title->getDBkey() ) + ); } /** @@ -171,19 +261,19 @@ class Revision { */ public static function newFromConds( $conditions ) { $db = wfGetDB( DB_SLAVE ); - $row = Revision::loadFromConds( $db, $conditions ); - if( is_null( $row ) && wfGetLB()->getServerCount() > 1 ) { + $rev = Revision::loadFromConds( $db, $conditions ); + if( is_null( $rev ) && wfGetLB()->getServerCount() > 1 ) { $dbw = wfGetDB( DB_MASTER ); - $row = Revision::loadFromConds( $dbw, $conditions ); + $rev = Revision::loadFromConds( $dbw, $conditions ); } - return $row; + return $rev; } /** * Given a set of conditions, fetch a revision from * the given database connection. * - * @param $db Database + * @param $db DatabaseBase * @param $conditions Array * @return Revision or null */ @@ -191,7 +281,6 @@ class Revision { $res = Revision::fetchFromConds( $db, $conditions ); if( $res ) { $row = $res->fetchObject(); - $res->free(); if( $row ) { $ret = new Revision( $row ); return $ret; @@ -213,9 +302,9 @@ class Revision { return Revision::fetchFromConds( wfGetDB( DB_SLAVE ), array( 'rev_id=page_latest', - 'page_namespace' => $title->getNamespace(), - 'page_title' => $title->getDBkey(), - 'page_id=rev_page' ) ); + 'page_namespace' => $title->getNamespace(), + 'page_title' => $title->getDBkey() ) + ); } /** @@ -223,50 +312,83 @@ class Revision { * which will return matching database rows with the * fields necessary to build Revision objects. * - * @param $db Database + * @param $db DatabaseBase * @param $conditions Array * @return ResultWrapper */ private static function fetchFromConds( $db, $conditions ) { - $fields = self::selectFields(); - $fields[] = 'page_namespace'; - $fields[] = 'page_title'; - $fields[] = 'page_latest'; - $res = $db->select( - array( 'page', 'revision' ), + $fields = array_merge( + self::selectFields(), + self::selectPageFields(), + self::selectUserFields() + ); + return $db->select( + array( 'revision', 'page', 'user' ), $fields, $conditions, __METHOD__, - array( 'LIMIT' => 1 ) ); - $ret = $db->resultObject( $res ); - return $ret; + array( 'LIMIT' => 1 ), + array( 'page' => self::pageJoinCond(), 'user' => self::userJoinCond() ) + ); + } + + /** + * Return the value of a select() JOIN conds array for the user table. + * This will get user table rows for logged-in users. + * @since 1.19 + * @return Array + */ + public static function userJoinCond() { + return array( 'LEFT JOIN', array( 'rev_user != 0', 'user_id = rev_user' ) ); + } + + /** + * Return the value of a select() page conds array for the paeg table. + * This will assure that the revision(s) are not orphaned from live pages. + * @since 1.19 + * @return Array + */ + public static function pageJoinCond() { + return array( 'INNER JOIN', array( 'page_id = rev_page' ) ); } /** * Return the list of revision fields that should be selected to create * a new revision. + * @return array */ - static function selectFields() { - return array( + public static function selectFields() { + global $wgContentHandlerUseDB; + + $fields = array( 'rev_id', 'rev_page', 'rev_text_id', 'rev_timestamp', 'rev_comment', - 'rev_user_text,'. + 'rev_user_text', 'rev_user', 'rev_minor_edit', 'rev_deleted', 'rev_len', - 'rev_parent_id' + 'rev_parent_id', + 'rev_sha1', ); + + if ( $wgContentHandlerUseDB ) { + $fields[] = 'rev_content_format'; + $fields[] = 'rev_content_model'; + } + + return $fields; } - + /** - * Return the list of text fields that should be selected to read the + * Return the list of text fields that should be selected to read the * revision text + * @return array */ - static function selectTextFields() { + public static function selectTextFields() { return array( 'old_text', 'old_flags' @@ -275,15 +397,25 @@ class Revision { /** * Return the list of page fields that should be selected from page table + * @return array */ - static function selectPageFields() { + public static function selectPageFields() { return array( 'page_namespace', 'page_title', + 'page_id', 'page_latest' ); } + /** + * Return the list of user fields that should be selected from user table + * @return array + */ + public static function selectUserFields() { + return array( 'user_name' ); + } + /** * Constructor * @@ -296,31 +428,49 @@ class Revision { $this->mPage = intval( $row->rev_page ); $this->mTextId = intval( $row->rev_text_id ); $this->mComment = $row->rev_comment; - $this->mUserText = $row->rev_user_text; $this->mUser = intval( $row->rev_user ); $this->mMinorEdit = intval( $row->rev_minor_edit ); $this->mTimestamp = $row->rev_timestamp; $this->mDeleted = intval( $row->rev_deleted ); - if( !isset( $row->rev_parent_id ) ) - $this->mParentId = is_null($row->rev_parent_id) ? null : 0; - else + if( !isset( $row->rev_parent_id ) ) { + $this->mParentId = is_null( $row->rev_parent_id ) ? null : 0; + } else { $this->mParentId = intval( $row->rev_parent_id ); + } - if( !isset( $row->rev_len ) || is_null( $row->rev_len ) ) + if( !isset( $row->rev_len ) || is_null( $row->rev_len ) ) { $this->mSize = null; - else + } else { $this->mSize = intval( $row->rev_len ); + } + + if ( !isset( $row->rev_sha1 ) ) { + $this->mSha1 = null; + } else { + $this->mSha1 = $row->rev_sha1; + } if( isset( $row->page_latest ) ) { $this->mCurrent = ( $row->rev_id == $row->page_latest ); - $row->page_id = $this->mPage; $this->mTitle = Title::newFromRow( $row ); } else { $this->mCurrent = false; $this->mTitle = null; } + if( !isset( $row->rev_content_model ) || is_null( $row->rev_content_model ) ) { + $this->mContentModel = null; # determine on demand if needed + } else { + $this->mContentModel = intval( $row->rev_content_model ); + } + + if( !isset( $row->rev_content_format ) || is_null( $row->rev_content_format ) ) { + $this->mContentFormat = null; # determine on demand if needed + } else { + $this->mContentFormat = intval( $row->rev_content_format ); + } + // Lazy extraction... $this->mText = null; if( isset( $row->old_text ) ) { @@ -329,9 +479,31 @@ class Revision { // 'text' table row entry will be lazy-loaded $this->mTextRow = null; } + + // Use user_name for users and rev_user_text for IPs... + $this->mUserText = null; // lazy load if left null + if ( $this->mUser == 0 ) { + $this->mUserText = $row->rev_user_text; // IP user + } elseif ( isset( $row->user_name ) ) { + $this->mUserText = $row->user_name; // logged-in user + } + $this->mOrigUserText = $row->rev_user_text; } elseif( is_array( $row ) ) { // Build a new revision to be saved... - global $wgUser; + global $wgUser; // ugh + + + # if we have a content object, use it to set the model and type + if ( !empty( $row['content'] ) ) { + if ( !empty( $row['text_id'] ) ) { #FIXME: when is that set? test with external store setup! check out insertOn() + throw new MWException( "Text already stored in external store (id {$row['text_id']}), can't serialize content object" ); + } + + $row['content_model'] = $row['content']->getModel(); + # note: mContentFormat is initializes later accordingly + # note: content is serialized later in this method! + # also set text to null? + } $this->mId = isset( $row['id'] ) ? intval( $row['id'] ) : null; $this->mPage = isset( $row['page'] ) ? intval( $row['page'] ) : null; @@ -339,25 +511,62 @@ class Revision { $this->mUserText = isset( $row['user_text'] ) ? strval( $row['user_text'] ) : $wgUser->getName(); $this->mUser = isset( $row['user'] ) ? intval( $row['user'] ) : $wgUser->getId(); $this->mMinorEdit = isset( $row['minor_edit'] ) ? intval( $row['minor_edit'] ) : 0; - $this->mTimestamp = isset( $row['timestamp'] ) ? strval( $row['timestamp'] ) : wfTimestamp( TS_MW ); + $this->mTimestamp = isset( $row['timestamp'] ) ? strval( $row['timestamp'] ) : wfTimestampNow(); $this->mDeleted = isset( $row['deleted'] ) ? intval( $row['deleted'] ) : 0; $this->mSize = isset( $row['len'] ) ? intval( $row['len'] ) : null; $this->mParentId = isset( $row['parent_id'] ) ? intval( $row['parent_id'] ) : null; + $this->mSha1 = isset( $row['sha1'] ) ? strval( $row['sha1'] ) : null; + + $this->mContentModel = isset( $row['content_model'] ) ? intval( $row['content_model'] ) : null; + $this->mContentFormat = isset( $row['content_format'] ) ? intval( $row['content_format'] ) : null; // Enforce spacing trimming on supplied text $this->mComment = isset( $row['comment'] ) ? trim( strval( $row['comment'] ) ) : null; $this->mText = isset( $row['text'] ) ? rtrim( strval( $row['text'] ) ) : null; $this->mTextRow = null; + # if we have a content object, override mText and mContentModel + if ( !empty( $row['content'] ) ) { + $handler = $this->getContentHandler(); + $this->mContent = $row['content']; + + $this->mContentModel = $this->mContent->getModel(); + $this->mContentHandler = null; + + $this->mText = $handler->serializeContent( $row['content'], $this->getContentFormat() ); + } elseif ( !is_null( $this->mText ) ) { + $handler = $this->getContentHandler(); + $this->mContent = $handler->unserializeContent( $this->mText ); + } + $this->mTitle = null; # Load on demand if needed - $this->mCurrent = false; - # If we still have no len_size, see it we have the text to figure it out - if ( !$this->mSize ) - $this->mSize = is_null( $this->mText ) ? null : strlen( $this->mText ); + $this->mCurrent = false; #XXX: really? we are about to create a revision. it will usually then be the current one. + + # If we still have no length, see it we have the text to figure it out + if ( !$this->mSize ) { + if ( !is_null( $this->mContent ) ) { + $this->mSize = $this->mContent->getSize(); + } else { + #XXX: my be inconsistent with the notion of "size" use for the present content model + #NOTE: should never happen if we have either text or content object! + $this->mSize = is_null( $this->mText ) ? null : strlen( $this->mText ); + } + } + + # Same for sha1 + if ( $this->mSha1 === null ) { + $this->mSha1 = is_null( $this->mText ) ? null : self::base36Sha1( $this->mText ); + } + + $this->getContentModel(); # force lazy init + $this->getContentFormat(); # force lazy init } else { throw new MWException( 'Revision constructor passed invalid row format.' ); } $this->mUnpatrolled = null; + + // @TODO: add support for ar_content_format, ar_content_model, rev_content_format, rev_content_model to API + // @TODO: get rid of $mText } /** @@ -369,6 +578,16 @@ class Revision { return $this->mId; } + /** + * Set the revision ID + * + * @since 1.19 + * @param $id Integer + */ + public function setId( $id ) { + $this->mId = $id; + } + /** * Get text row ID * @@ -381,7 +600,7 @@ class Revision { /** * Get parent revision ID (the original previous page revision) * - * @return Integer + * @return Integer|null */ public function getParentId() { return $this->mParentId; @@ -396,6 +615,15 @@ class Revision { return $this->mSize; } + /** + * Returns the base36 sha1 of the text in this revision, or null if unknown. + * + * @return String + */ + public function getSha1() { + return $this->mSha1; + } + /** * Returns the title of the page associated with this entry. * @@ -408,13 +636,12 @@ class Revision { $dbr = wfGetDB( DB_SLAVE ); $row = $dbr->selectRow( array( 'page', 'revision' ), - array( 'page_namespace', 'page_title' ), + self::selectPageFields(), array( 'page_id=rev_page', - 'rev_id' => $this->mId ), - 'Revision::getTitle' ); - if( $row ) { - $this->mTitle = Title::makeTitle( $row->page_namespace, - $row->page_title ); + 'rev_id' => $this->mId ), + __METHOD__ ); + if ( $row ) { + $this->mTitle = Title::newFromRow( $row ); } return $this->mTitle; } @@ -439,21 +666,21 @@ class Revision { /** * Fetch revision's user id if it's available to the specified audience. - * If the specified audience does not have access to it, zero will be + * If the specified audience does not have access to it, zero will be * returned. * * @param $audience Integer: one of: * Revision::FOR_PUBLIC to be displayed to all users * Revision::FOR_THIS_USER to be displayed to $wgUser * Revision::RAW get the ID regardless of permissions - * - * + * @param $user User object to check for, only if FOR_THIS_USER is passed + * to the $audience parameter * @return Integer */ - public function getUser( $audience = self::FOR_PUBLIC ) { + public function getUser( $audience = self::FOR_PUBLIC, User $user = null ) { if( $audience == self::FOR_PUBLIC && $this->isDeleted( self::DELETED_USER ) ) { return 0; - } elseif( $audience == self::FOR_THIS_USER && !$this->userCan( self::DELETED_USER ) ) { + } elseif( $audience == self::FOR_THIS_USER && !$this->userCan( self::DELETED_USER, $user ) ) { return 0; } else { return $this->mUser; @@ -471,23 +698,24 @@ class Revision { /** * Fetch revision's username if it's available to the specified audience. - * If the specified audience does not have access to the username, an + * If the specified audience does not have access to the username, an * empty string will be returned. * * @param $audience Integer: one of: * Revision::FOR_PUBLIC to be displayed to all users * Revision::FOR_THIS_USER to be displayed to $wgUser * Revision::RAW get the text regardless of permissions - * + * @param $user User object to check for, only if FOR_THIS_USER is passed + * to the $audience parameter * @return string */ - public function getUserText( $audience = self::FOR_PUBLIC ) { + public function getUserText( $audience = self::FOR_PUBLIC, User $user = null ) { if( $audience == self::FOR_PUBLIC && $this->isDeleted( self::DELETED_USER ) ) { return ''; - } elseif( $audience == self::FOR_THIS_USER && !$this->userCan( self::DELETED_USER ) ) { + } elseif( $audience == self::FOR_THIS_USER && !$this->userCan( self::DELETED_USER, $user ) ) { return ''; } else { - return $this->mUserText; + return $this->getRawUserText(); } } @@ -497,25 +725,34 @@ class Revision { * @return String */ public function getRawUserText() { + if ( $this->mUserText === null ) { + $this->mUserText = User::whoIs( $this->mUser ); // load on demand + if ( $this->mUserText === false ) { + # This shouldn't happen, but it can if the wiki was recovered + # via importing revs and there is no user table entry yet. + $this->mUserText = $this->mOrigUserText; + } + } return $this->mUserText; } /** * Fetch revision comment if it's available to the specified audience. - * If the specified audience does not have access to the comment, an + * If the specified audience does not have access to the comment, an * empty string will be returned. * * @param $audience Integer: one of: * Revision::FOR_PUBLIC to be displayed to all users * Revision::FOR_THIS_USER to be displayed to $wgUser * Revision::RAW get the text regardless of permissions - * + * @param $user User object to check for, only if FOR_THIS_USER is passed + * to the $audience parameter * @return String */ - function getComment( $audience = self::FOR_PUBLIC ) { + function getComment( $audience = self::FOR_PUBLIC, User $user = null ) { if( $audience == self::FOR_PUBLIC && $this->isDeleted( self::DELETED_COMMENT ) ) { return ''; - } elseif( $audience == self::FOR_THIS_USER && !$this->userCan( self::DELETED_COMMENT ) ) { + } elseif( $audience == self::FOR_THIS_USER && !$this->userCan( self::DELETED_COMMENT, $user ) ) { return ''; } else { return $this->mComment; @@ -537,7 +774,7 @@ class Revision { public function isMinor() { return (bool)$this->mMinorEdit; } - + /** * @return Integer rcid of the unpatrolled row, zero if there isn't one */ @@ -560,7 +797,7 @@ class Revision { } /** - * int $field one of DELETED_* bitfield constants + * @param $field int one of DELETED_* bitfield constants * * @return Boolean */ @@ -570,6 +807,8 @@ class Revision { /** * Get the deletion bitfield of the revision + * + * @return int */ public function getVisibility() { return (int)$this->mDeleted; @@ -577,34 +816,58 @@ class Revision { /** * Fetch revision text if it's available to the specified audience. - * If the specified audience does not have the ability to view this + * If the specified audience does not have the ability to view this * revision, an empty string will be returned. * * @param $audience Integer: one of: * Revision::FOR_PUBLIC to be displayed to all users * Revision::FOR_THIS_USER to be displayed to $wgUser * Revision::RAW get the text regardless of permissions + * @param $user User object to check for, only if FOR_THIS_USER is passed + * to the $audience parameter + * @return String + * @deprecated in 1.WD, use getContent() instead + */ + public function getText( $audience = self::FOR_PUBLIC, User $user = null ) { #FIXME: deprecated, replace usage! #FIXME: used a LOT! + wfDeprecated( __METHOD__, '1.WD' ); + + $content = $this->getContent(); + return ContentHandler::getContentText( $content ); # returns the raw content text, if applicable + } + + /** + * Fetch revision content if it's available to the specified audience. + * If the specified audience does not have the ability to view this + * revision, null will be returned. * + * @param $audience Integer: one of: + * Revision::FOR_PUBLIC to be displayed to all users + * Revision::FOR_THIS_USER to be displayed to $wgUser + * Revision::RAW get the text regardless of permissions + * @param $user User object to check for, only if FOR_THIS_USER is passed + * to the $audience parameter + * @return Content * - * @return String + * @since 1.WD */ - public function getText( $audience = self::FOR_PUBLIC ) { + public function getContent( $audience = self::FOR_PUBLIC, User $user = null ) { if( $audience == self::FOR_PUBLIC && $this->isDeleted( self::DELETED_TEXT ) ) { - return ''; - } elseif( $audience == self::FOR_THIS_USER && !$this->userCan( self::DELETED_TEXT ) ) { - return ''; + return null; + } elseif( $audience == self::FOR_THIS_USER && !$this->userCan( self::DELETED_TEXT, $user ) ) { + return null; } else { - return $this->getRawText(); + return $this->getContentInternal(); } } /** * Alias for getText(Revision::FOR_THIS_USER) * - * @deprecated + * @deprecated since 1.17 * @return String */ public function revText() { + wfDeprecated( __METHOD__, '1.17' ); return $this->getText( self::FOR_THIS_USER ); } @@ -613,12 +876,82 @@ class Revision { * * @return String */ - public function getRawText() { - if( is_null( $this->mText ) ) { - // Revision text is immutable. Load on demand: - $this->mText = $this->loadText(); + public function getRawText() { #FIXME: deprecated, replace usage! + return $this->getText( self::RAW ); + } + + protected function getContentInternal() { + if( is_null( $this->mContent ) ) { + // Revision is immutable. Load on demand: + + $handler = $this->getContentHandler(); + $format = $this->getContentFormat(); + $title = $this->getTitle(); + + if( is_null( $this->mText ) ) { + // Load text on demand: + $this->mText = $this->loadText(); + } + + $this->mContent = is_null( $this->mText ) ? null : $handler->unserializeContent( $this->mText, $format ); } - return $this->mText; + + return $this->mContent; + } + + /** + * Returns the content model for this revision. + * + * If no content model was stored in the database, $this->getTitle()->getContentModel() is + * used to determine the content model to use. If no title is know, CONTENT_MODEL_WIKITEXT + * is used as a last resort. + * + * @return int the content model id associated with this revision, see the CONTENT_MODEL_XXX constants. + **/ + public function getContentModel() { + if ( !$this->mContentModel ) { + $title = $this->getTitle(); + $this->mContentModel = ( $title ? $title->getContentModel() : CONTENT_MODEL_WIKITEXT ); + + assert( !empty( $this->mContentModel ) ); + } + + return $this->mContentModel; + } + + /** + * Returns the content format for this revision. + * + * If no content format was stored in the database, the default format for this + * revision's content model is returned. + * + * @return int the content format id associated with this revision, see the CONTENT_FORMAT_XXX constants. + **/ + public function getContentFormat() { + if ( !$this->mContentFormat ) { + $handler = $this->getContentHandler(); + $this->mContentFormat = $handler->getDefaultFormat(); + + assert( !empty( $this->mContentFormat ) ); + } + + return $this->mContentFormat; + } + + /** + * Returns the content handler appropriate for this revision's content model. + * + * @return ContentHandler + */ + public function getContentHandler() { + if ( !$this->mContentHandler ) { + $model = $this->getContentModel(); + $this->mContentHandler = ContentHandler::getForModelID( $model ); + + assert( $this->mContentHandler->isSupportedFormat( $this->getContentFormat() ) ); + } + + return $this->mContentHandler; } /** @@ -722,8 +1055,8 @@ class Revision { # Use external methods for external objects, text in table is URL-only then if ( in_array( 'external', $flags ) ) { $url = $text; - @list(/* $proto */, $path ) = explode( '://', $url, 2 ); - if( $path == '' ) { + $parts = explode( '://', $url, 2 ); + if( count( $parts ) == 1 || $parts[1] == '' ) { wfProfileOut( __METHOD__ ); return false; } @@ -751,15 +1084,15 @@ class Revision { } global $wgLegacyEncoding; - if( $text !== false && $wgLegacyEncoding - && !in_array( 'utf-8', $flags ) && !in_array( 'utf8', $flags ) ) + if( $text !== false && $wgLegacyEncoding + && !in_array( 'utf-8', $flags ) && !in_array( 'utf8', $flags ) ) { # Old revisions kept around in a legacy encoding? # Upconvert on demand. # ("utf8" checked for compatibility with some broken # conversion scripts 2008-12-30) - global $wgInputEncoding, $wgContLang; - $text = $wgContLang->iconv( $wgLegacyEncoding, $wgInputEncoding, $text ); + global $wgContLang; + $text = $wgContLang->iconv( $wgLegacyEncoding, 'UTF-8', $text ); } } wfProfileOut( __METHOD__ ); @@ -799,11 +1132,11 @@ class Revision { * Insert a new revision into the database, returning the new revision ID * number on success and dies horribly on failure. * - * @param $dbw DatabaseBase (master connection) + * @param $dbw DatabaseBase: (master connection) * @return Integer */ public function insertOn( $dbw ) { - global $wgDefaultExternalStore; + global $wgDefaultExternalStore, $wgContentHandlerUseDB; wfProfileIn( __METHOD__ ); @@ -842,23 +1175,33 @@ class Revision { $rev_id = isset( $this->mId ) ? $this->mId : $dbw->nextSequenceValue( 'revision_rev_id_seq' ); - $dbw->insert( 'revision', - array( - 'rev_id' => $rev_id, - 'rev_page' => $this->mPage, - 'rev_text_id' => $this->mTextId, - 'rev_comment' => $this->mComment, - 'rev_minor_edit' => $this->mMinorEdit ? 1 : 0, - 'rev_user' => $this->mUser, - 'rev_user_text' => $this->mUserText, - 'rev_timestamp' => $dbw->timestamp( $this->mTimestamp ), - 'rev_deleted' => $this->mDeleted, - 'rev_len' => $this->mSize, - 'rev_parent_id' => is_null($this->mParentId) ? - $this->getPreviousRevisionId( $dbw ) : $this->mParentId - ), __METHOD__ + + $row = array( + 'rev_id' => $rev_id, + 'rev_page' => $this->mPage, + 'rev_text_id' => $this->mTextId, + 'rev_comment' => $this->mComment, + 'rev_minor_edit' => $this->mMinorEdit ? 1 : 0, + 'rev_user' => $this->mUser, + 'rev_user_text' => $this->mUserText, + 'rev_timestamp' => $dbw->timestamp( $this->mTimestamp ), + 'rev_deleted' => $this->mDeleted, + 'rev_len' => $this->mSize, + 'rev_parent_id' => is_null( $this->mParentId ) + ? $this->getPreviousRevisionId( $dbw ) + : $this->mParentId, + 'rev_sha1' => is_null( $this->mSha1 ) + ? Revision::base36Sha1( $this->mText ) + : $this->mSha1, ); + if ( $wgContentHandlerUseDB ) { + $row[ 'rev_content_model' ] = $this->getContentModel(); + $row[ 'rev_content_format' ] = $this->getContentFormat(); + } + + $dbw->insert( 'revision', $row, __METHOD__ ); + $this->mId = !is_null( $rev_id ) ? $rev_id : $dbw->insertId(); wfRunHooks( 'RevisionInsertComplete', array( &$this, $data, $flags ) ); @@ -867,6 +1210,15 @@ class Revision { return $this->mId; } + /** + * Get the base 36 SHA-1 value for a string of text + * @param $text String + * @return String + */ + public static function base36Sha1( $text ) { + return wfBaseConvert( sha1( $text ), 16, 36, 31 ); + } + /** * Lazy-load the revision's text. * Currently hardcoded to the 'text' table storage engine. @@ -939,14 +1291,23 @@ class Revision { * @param $pageId Integer: ID number of the page to read from * @param $summary String: revision's summary * @param $minor Boolean: whether the revision should be considered as minor - * @return Mixed: Revision, or null on error + * @return Revision|null on error */ public static function newNullRevision( $dbw, $pageId, $summary, $minor ) { + global $wgContentHandlerUseDB; + wfProfileIn( __METHOD__ ); + $fields = array( 'page_latest', 'rev_text_id', 'rev_len', 'rev_sha1' ); + + if ( $wgContentHandlerUseDB ) { + $fields[] = 'rev_content_model'; + $fields[] = 'rev_content_format'; + } + $current = $dbw->selectRow( array( 'page', 'revision' ), - array( 'page_latest', 'rev_text_id', 'rev_len' ), + $fields, array( 'page_id' => $pageId, 'page_latest=rev_id', @@ -954,14 +1315,22 @@ class Revision { __METHOD__ ); if( $current ) { - $revision = new Revision( array( + $row = array( 'page' => $pageId, 'comment' => $summary, 'minor_edit' => $minor, 'text_id' => $current->rev_text_id, 'parent_id' => $current->page_latest, - 'len' => $current->rev_len - ) ); + 'len' => $current->rev_len, + 'sha1' => $current->rev_sha1, + ); + + if ( $wgContentHandlerUseDB ) { + $row[ 'content_model' ] = $current->rev_content_model; + $row[ 'content_format' ] = $current->rev_content_format; + } + + $revision = new Revision( $row ); } else { $revision = null; } @@ -977,10 +1346,11 @@ class Revision { * @param $field Integer:one of self::DELETED_TEXT, * self::DELETED_COMMENT, * self::DELETED_USER + * @param $user User object to check, or null to use $wgUser * @return Boolean */ - public function userCan( $field ) { - return self::userCanBitfield( $this->mDeleted, $field ); + public function userCan( $field, User $user = null ) { + return self::userCanBitfield( $this->mDeleted, $field, $user ); } /** @@ -992,12 +1362,11 @@ class Revision { * @param $field Integer: one of self::DELETED_TEXT = File::DELETED_FILE, * self::DELETED_COMMENT = File::DELETED_COMMENT, * self::DELETED_USER = File::DELETED_USER + * @param $user User object to check, or null to use $wgUser * @return Boolean */ - public static function userCanBitfield( $bitfield, $field ) { + public static function userCanBitfield( $bitfield, $field, User $user = null ) { if( $bitfield & $field ) { // aspect is deleted - global $wgUser; - $permission = ''; if ( $bitfield & self::DELETED_RESTRICTED ) { $permission = 'suppressrevision'; } elseif ( $field & self::DELETED_TEXT ) { @@ -1006,7 +1375,11 @@ class Revision { $permission = 'deletedhistory'; } wfDebug( "Checking for $permission due to $field match on $bitfield\n" ); - return $wgUser->isAllowed( $permission ); + if ( $user === null ) { + global $wgUser; + $user = $wgUser; + } + return $user->isAllowed( $permission ); } else { return true; } @@ -1026,7 +1399,7 @@ class Revision { $id = 0; } $conds = array( 'rev_id' => $id ); - $conds['rev_page'] = $title->getArticleId(); + $conds['rev_page'] = $title->getArticleID(); $timestamp = $dbr->selectField( 'revision', 'rev_timestamp', $conds, __METHOD__ ); if ( $timestamp === false && wfGetLB()->getServerCount() > 1 ) { # Not in slave, try master @@ -1060,18 +1433,10 @@ class Revision { * @return Integer */ static function countByTitle( $db, $title ) { - $id = $title->getArticleId(); + $id = $title->getArticleID(); if( $id ) { return Revision::countByPageId( $db, $id ); } return 0; } } - -/** - * Aliases for backwards compatibility with 1.6 - */ -define( 'MW_REV_DELETED_TEXT', Revision::DELETED_TEXT ); -define( 'MW_REV_DELETED_COMMENT', Revision::DELETED_COMMENT ); -define( 'MW_REV_DELETED_USER', Revision::DELETED_USER ); -define( 'MW_REV_DELETED_RESTRICTED', Revision::DELETED_RESTRICTED );