/**
* Populates the search index with content from all pages
*/
protected function populateSearchIndex()
{
$res = $this->db->select('page', 'MAX(page_id) AS count');
$s = $this->db->fetchObject($res);
$count = $s->count;
$this->output("Rebuilding index fields for {$count} pages...\n");
$n = 0;
$fields = array_merge(Revision::selectPageFields(), Revision::selectFields(), Revision::selectTextFields());
while ($n < $count) {
if ($n) {
$this->output($n . "\n");
}
$end = $n + self::RTI_CHUNK_SIZE - 1;
$res = $this->db->select(['page', 'revision', 'text'], $fields, ["page_id BETWEEN {$n} AND {$end}", 'page_latest = rev_id', 'rev_text_id = old_id'], __METHOD__);
foreach ($res as $s) {
try {
$title = Title::makeTitle($s->page_namespace, $s->page_title);
$rev = new Revision($s);
$content = $rev->getContent();
$u = new SearchUpdate($s->page_id, $title, $content);
$u->doUpdate();
} catch (MWContentSerializationException $ex) {
$this->output("Failed to deserialize content of revision {$s->rev_id} of page " . "`" . $title->getPrefixedDBkey() . "`!\n");
}
}
$n += self::RTI_CHUNK_SIZE;
}
}
/**
* @param IDatabase $db
* @return mixed
*/
public function doQuery($db)
{
$ids = array_map('intval', $this->ids);
$queryInfo = ['tables' => ['revision', 'user'], 'fields' => array_merge(Revision::selectFields(), Revision::selectUserFields()), 'conds' => ['rev_page' => $this->title->getArticleID(), 'rev_id' => $ids], 'options' => ['ORDER BY' => 'rev_id DESC'], 'join_conds' => ['page' => Revision::pageJoinCond(), 'user' => Revision::userJoinCond()]];
ChangeTags::modifyDisplayQuery($queryInfo['tables'], $queryInfo['fields'], $queryInfo['conds'], $queryInfo['join_conds'], $queryInfo['options'], '');
$live = $db->select($queryInfo['tables'], $queryInfo['fields'], $queryInfo['conds'], __METHOD__, $queryInfo['options'], $queryInfo['join_conds']);
if ($live->numRows() >= count($ids)) {
// All requested revisions are live, keeps things simple!
return $live;
}
$archiveQueryInfo = ['tables' => ['archive'], 'fields' => Revision::selectArchiveFields(), 'conds' => ['ar_rev_id' => $ids], 'options' => ['ORDER BY' => 'ar_rev_id DESC'], 'join_conds' => []];
ChangeTags::modifyDisplayQuery($archiveQueryInfo['tables'], $archiveQueryInfo['fields'], $archiveQueryInfo['conds'], $archiveQueryInfo['join_conds'], $archiveQueryInfo['options'], '');
// Check if any requested revisions are available fully deleted.
$archived = $db->select($archiveQueryInfo['tables'], $archiveQueryInfo['fields'], $archiveQueryInfo['conds'], __METHOD__, $archiveQueryInfo['options'], $archiveQueryInfo['join_conds']);
if ($archived->numRows() == 0) {
return $live;
} elseif ($live->numRows() == 0) {
return $archived;
} else {
// Combine the two! Whee
$rows = [];
foreach ($live as $row) {
$rows[$row->rev_id] = $row;
}
foreach ($archived as $row) {
$rows[$row->ar_rev_id] = $row;
}
krsort($rows);
return new FakeResultWrapper(array_values($rows));
}
}
/**
* @param $db DatabaseBase
* @return mixed
*/
public function doQuery($db)
{
$ids = array_map('intval', $this->ids);
$live = $db->select(array('revision', 'page', 'user'), array_merge(Revision::selectFields(), Revision::selectUserFields()), array('rev_page' => $this->title->getArticleID(), 'rev_id' => $ids), __METHOD__, array('ORDER BY' => 'rev_id DESC'), array('page' => Revision::pageJoinCond(), 'user' => Revision::userJoinCond()));
if ($live->numRows() >= count($ids)) {
// All requested revisions are live, keeps things simple!
return $live;
}
// Check if any requested revisions are available fully deleted.
$archived = $db->select(array('archive'), '*', array('ar_rev_id' => $ids), __METHOD__, array('ORDER BY' => 'ar_rev_id DESC'));
if ($archived->numRows() == 0) {
return $live;
} elseif ($live->numRows() == 0) {
return $archived;
} else {
// Combine the two! Whee
$rows = array();
foreach ($live as $row) {
$rows[$row->rev_id] = $row;
}
foreach ($archived as $row) {
$rows[$row->ar_rev_id] = $row;
}
krsort($rows);
return new FakeResultWrapper(array_values($rows));
}
}
function getQueryInfo()
{
$conds = $this->mConds;
$conds['rev_page'] = $this->articleID;
$conds[] = "rev_timestamp < " . $this->mDb->addQuotes($this->maxTimestamp);
return ['tables' => ['revision', 'page', 'user'], 'fields' => array_merge(Revision::selectFields(), Revision::selectUserFields()), 'conds' => $conds, 'join_conds' => ['page' => Revision::pageJoinCond(), 'user' => Revision::userJoinCond()]];
}
/**
* @param IDatabase $db
* @return mixed
*/
public function doQuery($db)
{
$ids = array_map('intval', $this->ids);
$queryInfo = array('tables' => array('revision', 'user'), 'fields' => array_merge(Revision::selectFields(), Revision::selectUserFields()), 'conds' => array('rev_page' => $this->title->getArticleID(), 'rev_id' => $ids), 'options' => array('ORDER BY' => 'rev_id DESC'), 'join_conds' => array('page' => Revision::pageJoinCond(), 'user' => Revision::userJoinCond()));
ChangeTags::modifyDisplayQuery($queryInfo['tables'], $queryInfo['fields'], $queryInfo['conds'], $queryInfo['join_conds'], $queryInfo['options'], '');
return $db->select($queryInfo['tables'], $queryInfo['fields'], $queryInfo['conds'], __METHOD__, $queryInfo['options'], $queryInfo['join_conds']);
}
/**
* @covers Revision::selectFields
*/
public function testSelectFields()
{
$fields = Revision::selectFields();
$this->assertTrue(in_array('rev_id', $fields), 'missing rev_id in list of fields');
$this->assertTrue(in_array('rev_page', $fields), 'missing rev_page in list of fields');
$this->assertTrue(in_array('rev_timestamp', $fields), 'missing rev_timestamp in list of fields');
$this->assertTrue(in_array('rev_user', $fields), 'missing rev_user in list of fields');
$this->assertFalse(in_array('rev_content_model', $fields), 'missing rev_content_model in list of fields');
$this->assertFalse(in_array('rev_content_format', $fields), 'missing rev_content_format in list of fields');
}
public function execute()
{
$db = wfGetDB(DB_MASTER);
if (!$db->tableExists('revision')) {
$this->error("revision table does not exist", true);
}
$this->output("Populating rev_len column\n");
$start = $db->selectField('revision', 'MIN(rev_id)', false, __FUNCTION__);
$end = $db->selectField('revision', 'MAX(rev_id)', false, __FUNCTION__);
if (is_null($start) || is_null($end)) {
$this->output("...revision table seems to be empty.\n");
$db->insert('updatelog', array('ul_key' => 'populate rev_len'), __METHOD__, 'IGNORE');
return;
}
# Do remaining chunks
$blockStart = intval($start);
$blockEnd = intval($start) + $this->mBatchSize - 1;
$count = 0;
$missing = 0;
while ($blockStart <= $end) {
$this->output("...doing rev_id from {$blockStart} to {$blockEnd}\n");
$res = $db->select('revision', Revision::selectFields(), array("rev_id >= {$blockStart}", "rev_id <= {$blockEnd}", "rev_len IS NULL"), __METHOD__);
# Go through and update rev_len from these rows.
foreach ($res as $row) {
$rev = new Revision($row);
$text = $rev->getRawText();
if (!is_string($text)) {
# This should not happen, but sometimes does (bug 20757)
$this->output("Text of revision {$row->rev_id} unavailable!\n");
$missing++;
} else {
# Update the row...
$db->update('revision', array('rev_len' => strlen($text)), array('rev_id' => $row->rev_id), __METHOD__);
$count++;
}
}
$blockStart += $this->mBatchSize;
$blockEnd += $this->mBatchSize;
wfWaitForSlaves(5);
}
$logged = $db->insert('updatelog', array('ul_key' => 'populate rev_len'), __METHOD__, 'IGNORE');
if ($logged) {
$this->output("rev_len population complete ... {$count} rows changed ({$missing} missing)\n");
return true;
} else {
$this->output("Could not insert rev_len population row.\n");
return false;
}
}
public function doDBUpdates()
{
$db = $this->getDB(DB_MASTER);
if (!$db->tableExists('revision')) {
$this->error("revision table does not exist", true);
} else {
if (!$db->fieldExists('revision', 'rev_sha1', __METHOD__)) {
$this->output("rev_sha1 column does not exist\n\n", true);
return false;
}
}
$this->output("Populating rev_len column\n");
$start = $db->selectField('revision', 'MIN(rev_id)', false, __METHOD__);
$end = $db->selectField('revision', 'MAX(rev_id)', false, __METHOD__);
if (!$start || !$end) {
$this->output("...revision table seems to be empty.\n");
return true;
}
# Do remaining chunks
$blockStart = intval($start);
$blockEnd = intval($start) + $this->mBatchSize - 1;
$count = 0;
$missing = 0;
$fields = Revision::selectFields();
while ($blockStart <= $end) {
$this->output("...doing rev_id from {$blockStart} to {$blockEnd}\n");
$res = $db->select('revision', $fields, array("rev_id >= {$blockStart}", "rev_id <= {$blockEnd}", "rev_len IS NULL"), __METHOD__);
# Go through and update rev_len from these rows.
foreach ($res as $row) {
$rev = new Revision($row);
$content = $rev->getContent();
if (!$content) {
# This should not happen, but sometimes does (bug 20757)
$this->output("Content of revision {$row->rev_id} unavailable!\n");
$missing++;
} else {
# Update the row...
$db->update('revision', array('rev_len' => $content->getSize()), array('rev_id' => $row->rev_id), __METHOD__);
$count++;
}
}
$blockStart += $this->mBatchSize;
$blockEnd += $this->mBatchSize;
wfWaitForSlaves();
}
$this->output("rev_len population complete ... {$count} rows changed ({$missing} missing)\n");
return true;
}
public function execute()
{
global $wgUser;
$dbr = wfGetDB(DB_SLAVE);
$ret = $dbr->select(array('flaggedpages', 'revision', 'page'), array_merge(Revision::selectFields(), array($dbr->tableName('page') . '.*')), array('fp_pending_since IS NOT NULL', 'page_id = fp_page_id', 'rev_page = fp_page_id', 'rev_timestamp >= fp_pending_since'), __METHOD__, array('ORDER BY' => 'fp_pending_since DESC'));
foreach ($ret as $row) {
$title = Title::newFromRow($row);
$article = new Article($title);
$rev = new Revision($row);
// Trigger cache regeneration
$start = microtime(true);
FRInclusionCache::getRevIncludes($article, $rev, $wgUser, 'regen');
$elapsed = intval((microtime(true) - $start) * 1000);
$this->cachePendingRevsLog($title->getPrefixedDBkey() . " rev:" . $rev->getId() . " {$elapsed}ms");
}
}
public function run()
{
$page = WikiPage::newFromID($this->params['pageId'], WikiPage::READ_LATEST);
if (!$page) {
$this->setLastError("Could not find page #{$this->params['pageId']}");
return false;
// deleted?
}
$dbw = wfGetDB(DB_MASTER);
// Use a named lock so that jobs for this page see each others' changes
$lockKey = "CategoryMembershipUpdates:{$page->getId()}";
$scopedLock = $dbw->getScopedLockAndFlush($lockKey, __METHOD__, 10);
if (!$scopedLock) {
$this->setLastError("Could not acquire lock '{$lockKey}'");
return false;
}
$dbr = wfGetDB(DB_SLAVE, ['recentchanges']);
// Wait till the slave is caught up so that jobs for this page see each others' changes
if (!wfGetLB()->safeWaitForMasterPos($dbr)) {
$this->setLastError("Timed out while waiting for slave to catch up");
return false;
}
// Clear any stale REPEATABLE-READ snapshot
$dbr->commit(__METHOD__, 'flush');
$cutoffUnix = wfTimestamp(TS_UNIX, $this->params['revTimestamp']);
// Using ENQUEUE_FUDGE_SEC handles jobs inserted out of revision order due to the delay
// between COMMIT and actual enqueueing of the CategoryMembershipChangeJob job.
$cutoffUnix -= self::ENQUEUE_FUDGE_SEC;
// Get the newest revision that has a SRC_CATEGORIZE row...
$row = $dbr->selectRow(['revision', 'recentchanges'], ['rev_timestamp', 'rev_id'], ['rev_page' => $page->getId(), 'rev_timestamp >= ' . $dbr->addQuotes($dbr->timestamp($cutoffUnix))], __METHOD__, ['ORDER BY' => 'rev_timestamp DESC, rev_id DESC'], ['recentchanges' => ['INNER JOIN', ['rc_this_oldid = rev_id', 'rc_source' => RecentChange::SRC_CATEGORIZE, 'rc_cur_id = rev_page', 'rc_timestamp >= rev_timestamp']]]);
// Only consider revisions newer than any such revision
if ($row) {
$cutoffUnix = wfTimestamp(TS_UNIX, $row->rev_timestamp);
$lastRevId = (int) $row->rev_id;
} else {
$lastRevId = 0;
}
// Find revisions to this page made around and after this revision which lack category
// notifications in recent changes. This lets jobs pick up were the last one left off.
$encCutoff = $dbr->addQuotes($dbr->timestamp($cutoffUnix));
$res = $dbr->select('revision', Revision::selectFields(), ['rev_page' => $page->getId(), "rev_timestamp > {$encCutoff}" . " OR (rev_timestamp = {$encCutoff} AND rev_id > {$lastRevId})"], __METHOD__, ['ORDER BY' => 'rev_timestamp ASC, rev_id ASC']);
// Apply all category updates in revision timestamp order
foreach ($res as $row) {
$this->notifyUpdatesForRevision($page, Revision::newFromRow($row));
}
return true;
}
public function run()
{
$page = WikiPage::newFromID($this->params['pageId'], WikiPage::READ_LATEST);
if (!$page) {
$this->setLastError("Could not find page #{$this->params['pageId']}");
return false;
// deleted?
}
$dbw = wfGetDB(DB_MASTER);
// Use a named lock so that jobs for this page see each others' changes
$fname = __METHOD__;
$lockKey = "CategoryMembershipUpdates:{$page->getId()}";
if (!$dbw->lock($lockKey, $fname, 10)) {
$this->setLastError("Could not acquire lock '{$lockKey}'");
return false;
}
$unlocker = new ScopedCallback(function () use($dbw, $lockKey, $fname) {
$dbw->unlock($lockKey, $fname);
});
// Sanity: clear any DB transaction snapshot
$dbw->commit(__METHOD__, 'flush');
$cutoffUnix = wfTimestamp(TS_UNIX, $this->params['revTimestamp']);
// Using ENQUEUE_FUDGE_SEC handles jobs inserted out of revision order due to the delay
// between COMMIT and actual enqueueing of the CategoryMembershipChangeJob job.
$cutoffUnix -= self::ENQUEUE_FUDGE_SEC;
// Get the newest revision that has a SRC_CATEGORIZE row...
$row = $dbw->selectRow(array('revision', 'recentchanges'), array('rev_timestamp', 'rev_id'), array('rev_page' => $page->getId(), 'rev_timestamp >= ' . $dbw->addQuotes($dbw->timestamp($cutoffUnix))), __METHOD__, array('ORDER BY' => 'rev_timestamp DESC, rev_id DESC'), array('recentchanges' => array('INNER JOIN', array('rc_this_oldid = rev_id', 'rc_source' => RecentChange::SRC_CATEGORIZE, 'rc_cur_id = rev_page', 'rc_timestamp >= rev_timestamp'))));
// Only consider revisions newer than any such revision
if ($row) {
$cutoffUnix = wfTimestamp(TS_UNIX, $row->rev_timestamp);
$lastRevId = (int) $row->rev_id;
} else {
$lastRevId = 0;
}
// Find revisions to this page made around and after this revision which lack category
// notifications in recent changes. This lets jobs pick up were the last one left off.
$encCutoff = $dbw->addQuotes($dbw->timestamp($cutoffUnix));
$res = $dbw->select('revision', Revision::selectFields(), array('rev_page' => $page->getId(), "rev_timestamp > {$encCutoff}" . " OR (rev_timestamp = {$encCutoff} AND rev_id > {$lastRevId})"), __METHOD__, array('ORDER BY' => 'rev_timestamp ASC, rev_id ASC'));
// Apply all category updates in revision timestamp order
foreach ($res as $row) {
$this->notifyUpdatesForRevision($page, Revision::newFromRow($row));
}
ScopedCallback::consume($unlocker);
return true;
}
public function doDBUpdates()
{
$db = $this->getDB(DB_MASTER);
if (!$db->tableExists('revision')) {
$this->error("revision table does not exist", true);
} elseif (!$db->tableExists('archive')) {
$this->error("archive table does not exist", true);
} elseif (!$db->fieldExists('revision', 'rev_len', __METHOD__)) {
$this->output("rev_len column does not exist\n\n", true);
return false;
}
$this->output("Populating rev_len column\n");
$rev = $this->doLenUpdates('revision', 'rev_id', 'rev', Revision::selectFields());
$this->output("Populating ar_len column\n");
$ar = $this->doLenUpdates('archive', 'ar_id', 'ar', Revision::selectArchiveFields());
$this->output("rev_len and ar_len population complete [{$rev} revision rows, {$ar} archive rows].\n");
return true;
}
function EditOwn($title, $user, $action, &$result)
{
static $cache = array();
global $wgEditOwnExcludedNamespaces, $wgEditOwnActions;
if (!is_array($wgEditOwnExcludedNamespaces)) {
// Prevent PHP from whining
$wgEditOwnExcludedNamespaces = array();
}
if (!in_array($action, $wgEditOwnActions) || $user->isAllowed('editall') || in_array($title->getNamespace(), $wgEditOwnExcludedNamespaces)) {
$result = null;
return true;
}
if (isset($cache[$user->getName()][$title->getArticleId()])) {
$result = $cache[$user->getName()][$title->getArticleId()];
return is_null($result);
}
if (!$title->exists()) {
// Creation is allowed
$cache[$user->getName()][$title->getArticleId()] = null;
$result = null;
return true;
}
// Since there's no easy way to get the first revision,
// we'll just do a DB query
$dbr = wfGetDb(DB_SLAVE);
$res = $dbr->select('revision', Revision::selectFields(), array('rev_page' => $title->getArticleId()), __METHOD__, array('ORDER BY' => 'rev_timestamp', 'LIMIT' => 1));
$row = $dbr->fetchObject($res);
if (!$row) {
// Title with no revs, weird... allow creation
$cache[$user->getName()][$title->getArticleId()] = null;
$result = null;
return true;
}
$rev = new Revision($row);
if ($user->getName() == $rev->getRawUserText()) {
$cache[$user->getName()][$title->getArticleId()] = null;
$result = null;
return true;
}
$cache[$user->getName()][$title->getArticleId()] = false;
$result = false;
return false;
}
/**
* @param IDatabase $db
* @return mixed
*/
public function doQuery($db)
{
$conds = ['rev_page' => $this->title->getArticleID()];
if ($this->ids !== null) {
$conds['rev_id'] = array_map('intval', $this->ids);
}
return $db->select(['revision', 'page', 'user'], array_merge(Revision::selectFields(), Revision::selectUserFields()), $conds, __METHOD__, ['ORDER BY' => 'rev_id DESC'], ['page' => Revision::pageJoinCond(), 'user' => Revision::userJoinCond()]);
}
/**
* Back-end article deletion
* Deletes the article with database consistency, writes logs, purges caches
*
* @since 1.19
*
* @param string $reason Delete reason for deletion log
* @param bool $suppress Suppress all revisions and log the deletion in
* the suppression log instead of the deletion log
* @param int $u1 Unused
* @param bool $u2 Unused
* @param array|string &$error Array of errors to append to
* @param User $user The deleting user
* @param array $tags Tags to apply to the deletion action
* @return Status Status object; if successful, $status->value is the log_id of the
* deletion log entry. If the page couldn't be deleted because it wasn't
* found, $status is a non-fatal 'cannotdelete' error
*/
public function doDeleteArticleReal($reason, $suppress = false, $u1 = null, $u2 = null, &$error = '', User $user = null, $tags = [])
{
global $wgUser, $wgContentHandlerUseDB;
wfDebug(__METHOD__ . "\n");
$status = Status::newGood();
if ($this->mTitle->getDBkey() === '') {
$status->error('cannotdelete', wfEscapeWikiText($this->getTitle()->getPrefixedText()));
return $status;
}
$user = is_null($user) ? $wgUser : $user;
if (!Hooks::run('ArticleDelete', [&$this, &$user, &$reason, &$error, &$status, $suppress])) {
if ($status->isOK()) {
// Hook aborted but didn't set a fatal status
$status->fatal('delete-hook-aborted');
}
return $status;
}
$dbw = wfGetDB(DB_MASTER);
$dbw->startAtomic(__METHOD__);
$this->loadPageData(self::READ_LATEST);
$id = $this->getId();
// T98706: lock the page from various other updates but avoid using
// WikiPage::READ_LOCKING as that will carry over the FOR UPDATE to
// the revisions queries (which also JOIN on user). Only lock the page
// row and CAS check on page_latest to see if the trx snapshot matches.
$lockedLatest = $this->lockAndGetLatest();
if ($id == 0 || $this->getLatest() != $lockedLatest) {
$dbw->endAtomic(__METHOD__);
// Page not there or trx snapshot is stale
$status->error('cannotdelete', wfEscapeWikiText($this->getTitle()->getPrefixedText()));
return $status;
}
// Given the lock above, we can be confident in the title and page ID values
$namespace = $this->getTitle()->getNamespace();
$dbKey = $this->getTitle()->getDBkey();
// At this point we are now comitted to returning an OK
// status unless some DB query error or other exception comes up.
// This way callers don't have to call rollback() if $status is bad
// unless they actually try to catch exceptions (which is rare).
// we need to remember the old content so we can use it to generate all deletion updates.
$revision = $this->getRevision();
try {
$content = $this->getContent(Revision::RAW);
} catch (Exception $ex) {
wfLogWarning(__METHOD__ . ': failed to load content during deletion! ' . $ex->getMessage());
$content = null;
}
$fields = Revision::selectFields();
$bitfield = false;
// Bitfields to further suppress the content
if ($suppress) {
$bitfield = Revision::SUPPRESSED_ALL;
$fields = array_diff($fields, ['rev_deleted']);
}
// For now, shunt the revision data into the archive table.
// Text is *not* removed from the text table; bulk storage
// is left intact to avoid breaking block-compression or
// immutable storage schemes.
// In the future, we may keep revisions and mark them with
// the rev_deleted field, which is reserved for this purpose.
// Get all of the page revisions
$res = $dbw->select('revision', $fields, ['rev_page' => $id], __METHOD__, 'FOR UPDATE');
// Build their equivalent archive rows
$rowsInsert = [];
foreach ($res as $row) {
$rowInsert = ['ar_namespace' => $namespace, 'ar_title' => $dbKey, 'ar_comment' => $row->rev_comment, 'ar_user' => $row->rev_user, 'ar_user_text' => $row->rev_user_text, 'ar_timestamp' => $row->rev_timestamp, 'ar_minor_edit' => $row->rev_minor_edit, 'ar_rev_id' => $row->rev_id, 'ar_parent_id' => $row->rev_parent_id, 'ar_text_id' => $row->rev_text_id, 'ar_text' => '', 'ar_flags' => '', 'ar_len' => $row->rev_len, 'ar_page_id' => $id, 'ar_deleted' => $suppress ? $bitfield : $row->rev_deleted, 'ar_sha1' => $row->rev_sha1];
if ($wgContentHandlerUseDB) {
$rowInsert['ar_content_model'] = $row->rev_content_model;
$rowInsert['ar_content_format'] = $row->rev_content_format;
}
$rowsInsert[] = $rowInsert;
}
// Copy them into the archive table
$dbw->insert('archive', $rowsInsert, __METHOD__);
// Save this so we can pass it to the ArticleDeleteComplete hook.
$archivedRevisionCount = $dbw->affectedRows();
// Clone the title and wikiPage, so we have the information we need when
// we log and run the ArticleDeleteComplete hook.
$logTitle = clone $this->mTitle;
$wikiPageBeforeDelete = clone $this;
// Now that it's safely backed up, delete it
$dbw->delete('page', ['page_id' => $id], __METHOD__);
$dbw->delete('revision', ['rev_page' => $id], __METHOD__);
// Log the deletion, if the page was suppressed, put it in the suppression log instead
$logtype = $suppress ? 'suppress' : 'delete';
$logEntry = new ManualLogEntry($logtype, 'delete');
$logEntry->setPerformer($user);
$logEntry->setTarget($logTitle);
$logEntry->setComment($reason);
$logEntry->setTags($tags);
$logid = $logEntry->insert();
$dbw->onTransactionPreCommitOrIdle(function () use($dbw, $logEntry, $logid) {
// Bug 56776: avoid deadlocks (especially from FileDeleteForm)
$logEntry->publish($logid);
}, __METHOD__);
$dbw->endAtomic(__METHOD__);
$this->doDeleteUpdates($id, $content, $revision);
Hooks::run('ArticleDeleteComplete', [&$wikiPageBeforeDelete, &$user, $reason, $id, $content, $logEntry, $archivedRevisionCount]);
$status->value = $logid;
// Show log excerpt on 404 pages rather than just a link
$cache = ObjectCache::getMainStashInstance();
$key = wfMemcKey('page-recent-delete', md5($logTitle->getPrefixedText()));
$cache->set($key, 1, $cache::TTL_DAY);
return $status;
}
function getQueryInfo()
{
$queryInfo = array('tables' => array('revision', 'user'), 'fields' => array_merge(Revision::selectFields(), Revision::selectUserFields()), 'conds' => array_merge(array('rev_page' => $this->getWikiPage()->getId()), $this->conds), 'options' => array('USE INDEX' => array('revision' => 'page_timestamp')), 'join_conds' => array('user' => Revision::userJoinCond()));
ChangeTags::modifyDisplayQuery($queryInfo['tables'], $queryInfo['fields'], $queryInfo['conds'], $queryInfo['join_conds'], $queryInfo['options'], $this->tagFilter);
wfRunHooks('PageHistoryPager::getQueryInfo', array(&$this, &$queryInfo));
return $queryInfo;
}
function getQueryInfo()
{
list($tables, $index, $userCond, $join_cond) = $this->getUserCond();
$user = $this->getUser();
$conds = array_merge($userCond, $this->getNamespaceCond());
// Paranoia: avoid brute force searches (bug 17342)
if (!$user->isAllowed('deletedhistory')) {
$conds[] = $this->mDb->bitAnd('rev_deleted', Revision::DELETED_USER) . ' = 0';
} elseif (!$user->isAllowed('suppressrevision')) {
$conds[] = $this->mDb->bitAnd('rev_deleted', Revision::SUPPRESSED_USER) . ' != ' . Revision::SUPPRESSED_USER;
}
# Don't include orphaned revisions
$join_cond['page'] = Revision::pageJoinCond();
# Get the current user name for accounts
$join_cond['user'] = Revision::userJoinCond();
$queryInfo = array('tables' => $tables, 'fields' => array_merge(Revision::selectFields(), Revision::selectUserFields(), array('page_namespace', 'page_title', 'page_is_new', 'page_latest', 'page_is_redirect', 'page_len')), 'conds' => $conds, 'options' => array('USE INDEX' => array('revision' => $index)), 'join_conds' => $join_cond);
ChangeTags::modifyDisplayQuery($queryInfo['tables'], $queryInfo['fields'], $queryInfo['conds'], $queryInfo['join_conds'], $queryInfo['options'], $this->tagFilter);
wfRunHooks('ContribsPager::getQueryInfo', array(&$this, &$queryInfo));
return $queryInfo;
}
function loadFromDB($dbname, $page_id, $rev_id)
{
$db = wfGetDB(DB_SLAVE, 'stats', $dbname);
$fields = Revision::selectPageFields();
$fields = array_merge($fields, Revision::selectFields());
$fields[] = " date_format(rev_timestamp, '%Y-%m-%d %H:%i:%s') as ts ";
$oRow = $db->selectRow(array('revision', 'page'), $fields, array("rev_page = page_id", 'page_id' => $page_id, 'rev_id' => $rev_id), __METHOD__);
if (empty($oRow)) {
$fields = array('ar_namespace as page_namespace', 'ar_title as page_title', 'ar_comment as rev_comment', 'ar_user as rev_user', 'ar_user_text as rev_user_text', 'ar_timestamp as rev_timestamp', 'ar_minor_edit as rev_minor_edit', 'ar_rev_id as rev_id', 'ar_text_id as rev_text_id', 'ar_len as rev_len', 'ar_page_id as page_id', 'ar_page_id as rev_page', 'ar_deleted as rev_deleted', '0 as rev_parent_id', 'date_format(ar_timestamp, \'%Y-%m-%d %H:%i:%s\') as ts');
$conditions = array('ar_page_id' => $page_id, 'ar_rev_id' => $rev_id);
$oRow = $db->selectRow('archive', $fields, $conditions, __METHOD__);
}
return $oRow;
}
/**
* @param ApiPageSet $resultPageSet
* @return void
*/
protected function run(ApiPageSet $resultPageSet = null)
{
$db = $this->getDB();
$params = $this->extractRequestParams(false);
$result = $this->getResult();
$this->requireMaxOneParameter($params, 'user', 'excludeuser');
// Namespace check is likely to be desired, but can't be done
// efficiently in SQL.
$miser_ns = null;
$needPageTable = false;
if ($params['namespace'] !== null) {
$params['namespace'] = array_unique($params['namespace']);
sort($params['namespace']);
if ($params['namespace'] != MWNamespace::getValidNamespaces()) {
$needPageTable = true;
if ($this->getConfig()->get('MiserMode')) {
$miser_ns = $params['namespace'];
} else {
$this->addWhere(array('page_namespace' => $params['namespace']));
}
}
}
$this->addTables('revision');
if ($resultPageSet === null) {
$this->parseParameters($params);
$this->addTables('page');
$this->addJoinConds(array('page' => array('INNER JOIN', array('rev_page = page_id'))));
$this->addFields(Revision::selectFields());
$this->addFields(Revision::selectPageFields());
// Review this depeneding on the outcome of T113901
$this->addOption('STRAIGHT_JOIN');
} else {
$this->limit = $this->getParameter('limit') ?: 10;
$this->addFields(array('rev_timestamp', 'rev_id'));
if ($params['generatetitles']) {
$this->addFields(array('rev_page'));
}
if ($needPageTable) {
$this->addTables('page');
$this->addJoinConds(array('page' => array('INNER JOIN', array('rev_page = page_id'))));
$this->addFieldsIf(array('page_namespace'), (bool) $miser_ns);
// Review this depeneding on the outcome of T113901
$this->addOption('STRAIGHT_JOIN');
}
}
if ($this->fld_tags) {
$this->addTables('tag_summary');
$this->addJoinConds(array('tag_summary' => array('LEFT JOIN', array('rev_id=ts_rev_id'))));
$this->addFields('ts_tags');
}
if ($this->fetchContent) {
$this->addTables('text');
$this->addJoinConds(array('text' => array('INNER JOIN', array('rev_text_id=old_id'))));
$this->addFields('old_id');
$this->addFields(Revision::selectTextFields());
}
if ($params['user'] !== null) {
$id = User::idFromName($params['user']);
if ($id) {
$this->addWhereFld('rev_user', $id);
} else {
$this->addWhereFld('rev_user_text', $params['user']);
}
} elseif ($params['excludeuser'] !== null) {
$id = User::idFromName($params['excludeuser']);
if ($id) {
$this->addWhere('rev_user != ' . $id);
} else {
$this->addWhere('rev_user_text != ' . $db->addQuotes($params['excludeuser']));
}
}
if ($params['user'] !== null || $params['excludeuser'] !== null) {
// Paranoia: avoid brute force searches (bug 17342)
if (!$this->getUser()->isAllowed('deletedhistory')) {
$bitmask = Revision::DELETED_USER;
} elseif (!$this->getUser()->isAllowedAny('suppressrevision', 'viewsuppressed')) {
$bitmask = Revision::DELETED_USER | Revision::DELETED_RESTRICTED;
} else {
$bitmask = 0;
}
if ($bitmask) {
$this->addWhere($db->bitAnd('rev_deleted', $bitmask) . " != {$bitmask}");
}
}
$dir = $params['dir'];
if ($params['continue'] !== null) {
$op = $dir == 'newer' ? '>' : '<';
$cont = explode('|', $params['continue']);
$this->dieContinueUsageIf(count($cont) != 2);
$ts = $db->addQuotes($db->timestamp($cont[0]));
$rev_id = (int) $cont[1];
$this->dieContinueUsageIf(strval($rev_id) !== $cont[1]);
$this->addWhere("rev_timestamp {$op} {$ts} OR " . "(rev_timestamp = {$ts} AND " . "rev_id {$op}= {$rev_id})");
}
$this->addOption('LIMIT', $this->limit + 1);
$sort = $dir == 'newer' ? '' : ' DESC';
$orderby = array();
// Targeting index rev_timestamp, user_timestamp, or usertext_timestamp
// But 'user' is always constant for the latter two, so it doesn't matter here.
$orderby[] = "rev_timestamp {$sort}";
$orderby[] = "rev_id {$sort}";
$this->addOption('ORDER BY', $orderby);
$res = $this->select(__METHOD__);
$pageMap = array();
// Maps rev_page to array index
$count = 0;
$nextIndex = 0;
$generated = array();
foreach ($res as $row) {
if (++$count > $this->limit) {
// We've had enough
$this->setContinueEnumParameter('continue', "{$row->rev_timestamp}|{$row->rev_id}");
break;
}
// Miser mode namespace check
if ($miser_ns !== null && !in_array($row->page_namespace, $miser_ns)) {
continue;
}
if ($resultPageSet !== null) {
if ($params['generatetitles']) {
$generated[$row->rev_page] = $row->rev_page;
} else {
$generated[] = $row->rev_id;
}
} else {
$revision = Revision::newFromRow($row);
$rev = $this->extractRevisionInfo($revision, $row);
if (!isset($pageMap[$row->rev_page])) {
$index = $nextIndex++;
$pageMap[$row->rev_page] = $index;
$title = $revision->getTitle();
$a = array('pageid' => $title->getArticleID(), 'revisions' => array($rev));
ApiResult::setIndexedTagName($a['revisions'], 'rev');
ApiQueryBase::addTitleInfo($a, $title);
$fit = $result->addValue(array('query', $this->getModuleName()), $index, $a);
} else {
$index = $pageMap[$row->rev_page];
$fit = $result->addValue(array('query', $this->getModuleName(), $index, 'revisions'), null, $rev);
}
if (!$fit) {
$this->setContinueEnumParameter('continue', "{$row->rev_timestamp}|{$row->rev_id}");
break;
}
}
}
if ($resultPageSet !== null) {
if ($params['generatetitles']) {
$resultPageSet->populateFromPageIDs($generated);
} else {
$resultPageSet->populateFromRevisionIDs($generated);
}
} else {
$result->addIndexedTagName(array('query', $this->getModuleName()), 'page');
}
}
function getQueryInfo()
{
$queryInfo = array('tables' => array('revision'), 'fields' => Revision::selectFields(), 'conds' => array_merge(array('rev_page' => $this->historyPage->getTitle()->getArticleID()), $this->conds), 'options' => array('USE INDEX' => array('revision' => 'page_timestamp')), 'join_conds' => array('tag_summary' => array('LEFT JOIN', 'ts_rev_id=rev_id')));
ChangeTags::modifyDisplayQuery($queryInfo['tables'], $queryInfo['fields'], $queryInfo['conds'], $queryInfo['join_conds'], $queryInfo['options'], $this->tagFilter);
wfRunHooks('PageHistoryPager::getQueryInfo', array(&$this, &$queryInfo));
return $queryInfo;
}
/**
* Get select fields for FlaggedRevision DB row (flaggedrevs/revision tables)
* @return array
*/
public static function selectFields()
{
return array_merge(Revision::selectFields(), array('fr_rev_id', 'fr_page_id', 'fr_rev_timestamp', 'fr_user', 'fr_timestamp', 'fr_quality', 'fr_tags', 'fr_flags', 'fr_img_name', 'fr_img_sha1', 'fr_img_timestamp'));
}
function getQueryInfo() {
$conds = $this->mConds;
$conds['rev_page'] = $this->articleID;
$conds[] = "rev_timestamp < {$this->maxTimestamp}";
return array(
'tables' => array( 'revision', 'page', 'user' ),
'fields' => array_merge( Revision::selectFields(), Revision::selectUserFields() ),
'conds' => $conds,
'join_conds' => array(
'page' => Revision::pageJoinCond(),
'user' => Revision::userJoinCond() )
);
}
function getQueryInfo()
{
return array('tables' => 'revision', 'fields' => Revision::selectFields(), 'conds' => array('rev_page' => $this->mPageHistory->mTitle->getArticleID()), 'options' => array('USE INDEX' => 'page_timestamp'));
}
protected function run(ApiPageSet $resultPageSet = null)
{
$params = $this->extractRequestParams(false);
// If any of those parameters are used, work in 'enumeration' mode.
// Enum mode can only be used when exactly one page is provided.
// Enumerating revisions on multiple pages make it extremely
// difficult to manage continuations and require additional SQL indexes
$enumRevMode = !is_null($params['user']) || !is_null($params['excludeuser']) || !is_null($params['limit']) || !is_null($params['startid']) || !is_null($params['endid']) || $params['dir'] === 'newer' || !is_null($params['start']) || !is_null($params['end']);
$pageSet = $this->getPageSet();
$pageCount = $pageSet->getGoodTitleCount();
$revCount = $pageSet->getRevisionCount();
// Optimization -- nothing to do
if ($revCount === 0 && $pageCount === 0) {
// Nothing to do
return;
}
if ($revCount > 0 && count($pageSet->getLiveRevisionIDs()) === 0) {
// We're in revisions mode but all given revisions are deleted
return;
}
if ($revCount > 0 && $enumRevMode) {
$this->dieUsage('The revids= parameter may not be used with the list options ' . '(limit, startid, endid, dirNewer, start, end).', 'revids');
}
if ($pageCount > 1 && $enumRevMode) {
$this->dieUsage('titles, pageids or a generator was used to supply multiple pages, ' . 'but the limit, startid, endid, dirNewer, user, excludeuser, start ' . 'and end parameters may only be used on a single page.', 'multpages');
}
// In non-enum mode, rvlimit can't be directly used. Use the maximum
// allowed value.
if (!$enumRevMode) {
$this->setParsedLimit = false;
$params['limit'] = 'max';
}
$db = $this->getDB();
$this->addTables(array('revision', 'page'));
$this->addJoinConds(array('page' => array('INNER JOIN', array('page_id = rev_page'))));
if ($resultPageSet === null) {
$this->parseParameters($params);
$this->token = $params['token'];
$this->addFields(Revision::selectFields());
if ($this->token !== null || $pageCount > 0) {
$this->addFields(Revision::selectPageFields());
}
} else {
$this->limit = $this->getParameter('limit') ?: 10;
$this->addFields(array('rev_id', 'rev_page'));
}
if ($this->fld_tags) {
$this->addTables('tag_summary');
$this->addJoinConds(array('tag_summary' => array('LEFT JOIN', array('rev_id=ts_rev_id'))));
$this->addFields('ts_tags');
}
if (!is_null($params['tag'])) {
$this->addTables('change_tag');
$this->addJoinConds(array('change_tag' => array('INNER JOIN', array('rev_id=ct_rev_id'))));
$this->addWhereFld('ct_tag', $params['tag']);
}
if ($this->fetchContent) {
// For each page we will request, the user must have read rights for that page
$user = $this->getUser();
/** @var $title Title */
foreach ($pageSet->getGoodTitles() as $title) {
if (!$title->userCan('read', $user)) {
$this->dieUsage('The current user is not allowed to read ' . $title->getPrefixedText(), 'accessdenied');
}
}
$this->addTables('text');
$this->addJoinConds(array('text' => array('INNER JOIN', array('rev_text_id=old_id'))));
$this->addFields('old_id');
$this->addFields(Revision::selectTextFields());
}
// add user name, if needed
if ($this->fld_user) {
$this->addTables('user');
$this->addJoinConds(array('user' => Revision::userJoinCond()));
$this->addFields(Revision::selectUserFields());
}
if ($enumRevMode) {
// This is mostly to prevent parameter errors (and optimize SQL?)
if (!is_null($params['startid']) && !is_null($params['start'])) {
$this->dieUsage('start and startid cannot be used together', 'badparams');
}
if (!is_null($params['endid']) && !is_null($params['end'])) {
$this->dieUsage('end and endid cannot be used together', 'badparams');
}
if (!is_null($params['user']) && !is_null($params['excludeuser'])) {
$this->dieUsage('user and excludeuser cannot be used together', 'badparams');
}
// Continuing effectively uses startid. But we can't use rvstartid
// directly, because there is no way to tell the client to ''not''
// send rvstart if it sent it in the original query. So instead we
// send the continuation startid as rvcontinue, and ignore both
// rvstart and rvstartid when that is supplied.
if (!is_null($params['continue'])) {
$params['startid'] = $params['continue'];
$params['start'] = null;
}
// This code makes an assumption that sorting by rev_id and rev_timestamp produces
// the same result. This way users may request revisions starting at a given time,
// but to page through results use the rev_id returned after each page.
// Switching to rev_id removes the potential problem of having more than
// one row with the same timestamp for the same page.
// The order needs to be the same as start parameter to avoid SQL filesort.
if (is_null($params['startid']) && is_null($params['endid'])) {
$this->addTimestampWhereRange('rev_timestamp', $params['dir'], $params['start'], $params['end']);
} else {
$this->addWhereRange('rev_id', $params['dir'], $params['startid'], $params['endid']);
// One of start and end can be set
// If neither is set, this does nothing
$this->addTimestampWhereRange('rev_timestamp', $params['dir'], $params['start'], $params['end'], false);
}
// There is only one ID, use it
$ids = array_keys($pageSet->getGoodTitles());
$this->addWhereFld('rev_page', reset($ids));
if (!is_null($params['user'])) {
$this->addWhereFld('rev_user_text', $params['user']);
} elseif (!is_null($params['excludeuser'])) {
$this->addWhere('rev_user_text != ' . $db->addQuotes($params['excludeuser']));
}
if (!is_null($params['user']) || !is_null($params['excludeuser'])) {
// Paranoia: avoid brute force searches (bug 17342)
if (!$this->getUser()->isAllowed('deletedhistory')) {
$bitmask = Revision::DELETED_USER;
} elseif (!$this->getUser()->isAllowedAny('suppressrevision', 'viewsuppressed')) {
$bitmask = Revision::DELETED_USER | Revision::DELETED_RESTRICTED;
} else {
$bitmask = 0;
}
if ($bitmask) {
$this->addWhere($db->bitAnd('rev_deleted', $bitmask) . " != {$bitmask}");
}
}
} elseif ($revCount > 0) {
$revs = $pageSet->getLiveRevisionIDs();
// Get all revision IDs
$this->addWhereFld('rev_id', array_keys($revs));
if (!is_null($params['continue'])) {
$this->addWhere('rev_id >= ' . intval($params['continue']));
}
$this->addOption('ORDER BY', 'rev_id');
} elseif ($pageCount > 0) {
$titles = $pageSet->getGoodTitles();
// When working in multi-page non-enumeration mode,
// limit to the latest revision only
$this->addWhere('page_latest=rev_id');
// Get all page IDs
$this->addWhereFld('page_id', array_keys($titles));
// Every time someone relies on equality propagation, god kills a kitten :)
$this->addWhereFld('rev_page', array_keys($titles));
if (!is_null($params['continue'])) {
$cont = explode('|', $params['continue']);
$this->dieContinueUsageIf(count($cont) != 2);
$pageid = intval($cont[0]);
$revid = intval($cont[1]);
$this->addWhere("rev_page > {$pageid} OR " . "(rev_page = {$pageid} AND " . "rev_id >= {$revid})");
}
$this->addOption('ORDER BY', array('rev_page', 'rev_id'));
} else {
ApiBase::dieDebug(__METHOD__, 'param validation?');
}
$this->addOption('LIMIT', $this->limit + 1);
$count = 0;
$generated = array();
$res = $this->select(__METHOD__);
foreach ($res as $row) {
if (++$count > $this->limit) {
// We've reached the one extra which shows that there are
// additional pages to be had. Stop here...
if ($enumRevMode) {
$this->setContinueEnumParameter('continue', intval($row->rev_id));
} elseif ($revCount > 0) {
$this->setContinueEnumParameter('continue', intval($row->rev_id));
} else {
$this->setContinueEnumParameter('continue', intval($row->rev_page) . '|' . intval($row->rev_id));
}
break;
}
if ($resultPageSet !== null) {
$generated[] = $row->rev_id;
} else {
$revision = new Revision($row);
$rev = $this->extractRevisionInfo($revision, $row);
if ($this->token !== null) {
$title = $revision->getTitle();
$tokenFunctions = $this->getTokenFunctions();
foreach ($this->token as $t) {
$val = call_user_func($tokenFunctions[$t], $title->getArticleID(), $title, $revision);
if ($val === false) {
$this->setWarning("Action '{$t}' is not allowed for the current user");
} else {
$rev[$t . 'token'] = $val;
}
}
}
$fit = $this->addPageSubItem($row->rev_page, $rev, 'rev');
if (!$fit) {
if ($enumRevMode) {
$this->setContinueEnumParameter('continue', intval($row->rev_id));
} elseif ($revCount > 0) {
$this->setContinueEnumParameter('continue', intval($row->rev_id));
} else {
$this->setContinueEnumParameter('continue', intval($row->rev_page) . '|' . intval($row->rev_id));
}
break;
}
}
}
if ($resultPageSet !== null) {
$resultPageSet->populateFromRevisionIDs($generated);
}
}
private function buildRevisionList($title, $errMsg = '')
{
// Builds a form listing the last 50 revisions of $pagename
// that allows changing authors
// $pagename: Title object
// $errMsg: Error message
// Returns: HTML.
global $wgScript;
$dbr = wfGetDb(DB_SLAVE);
$res = $dbr->select('revision', Revision::selectFields(), array('rev_page' => $title->getArticleId()), __METHOD__, array('ORDER BY' => 'rev_timestamp DESC', 'LIMIT' => 50));
$revs = array();
while ($r = $dbr->fetchObject($res)) {
$revs[] = new Revision($r);
}
if (empty($revs)) {
// That's *very* weird
return wfMsg('changeauthor-weirderror');
}
$retval = Xml::openElement('form', array('method' => 'POST', 'action' => $wgScript));
$retval .= Xml::hidden('title', $this->selfTitle->getPrefixedDbKey());
$retval .= Xml::hidden('action', 'change');
$retval .= Xml::hidden('targetpage', $title->getPrefixedDbKey());
$retval .= Xml::openElement('fieldset');
$retval .= Xml::element('p', array(), wfMsg('changeauthor-explanation-multi'));
$retval .= Xml::inputLabel(wfMsg('changeauthor-comment'), 'comment', 'comment', 50);
$retval .= Xml::submitButton(wfMsg('changeauthor-changeauthors-multi'));
if ($errMsg != '') {
$retval .= Xml::openElement('p') . Xml::openElement('b');
$retval .= Xml::element('font', array('color' => 'red'), $errMsg);
$retval .= Xml::closeElement('b') . Xml::closeElement('p');
}
$retval .= Xml::element('h2', array(), $title->getPrefixedText());
$retval .= Xml::openElement('ul');
$count = count($revs);
foreach ($revs as $i => $rev) {
$retval .= $this->buildRevisionLine($rev, $title, $i == 0, $i == $count - 1);
}
$retval .= Xml::closeElement('ul');
$retval .= Xml::closeElement('fieldset');
$retval .= Xml::closeElement('form');
return $retval;
}
/**
* @covers Revision::selectFields
*/
public function testSelectFields()
{
global $wgContentHandlerUseDB;
$fields = Revision::selectFields();
$this->assertTrue(in_array('rev_id', $fields), 'missing rev_id in list of fields');
$this->assertTrue(in_array('rev_page', $fields), 'missing rev_page in list of fields');
$this->assertTrue(in_array('rev_timestamp', $fields), 'missing rev_timestamp in list of fields');
$this->assertTrue(in_array('rev_user', $fields), 'missing rev_user in list of fields');
if ($wgContentHandlerUseDB) {
$this->assertTrue(in_array('rev_content_model', $fields), 'missing rev_content_model in list of fields');
$this->assertTrue(in_array('rev_content_format', $fields), 'missing rev_content_format in list of fields');
}
}
/**
* Get the first revision of the page
*
* @param int $flags Title::GAID_FOR_UPDATE
* @return Revision|null If page doesn't exist
*/
public function getFirstRevision($flags = 0)
{
$pageId = $this->getArticleID($flags);
if ($pageId) {
$db = $flags & self::GAID_FOR_UPDATE ? wfGetDB(DB_MASTER) : wfGetDB(DB_SLAVE);
$row = $db->selectRow('revision', Revision::selectFields(), array('rev_page' => $pageId), __METHOD__, array('ORDER BY' => 'rev_timestamp ASC', 'LIMIT' => 1));
if ($row) {
return new Revision($row);
}
}
return null;
}
/**
* Builds a form listing the last 50 revisions of $title that allows changing authors
* @param $title Title object
* @param $errMsg String: error message
* @return HTML
*/
private function buildRevisionList($title, $errMsg = '')
{
global $wgScript;
$dbr = wfGetDB(DB_SLAVE);
$res = $dbr->select('revision', Revision::selectFields(), array('rev_page' => $title->getArticleId()), __METHOD__, array('ORDER BY' => 'rev_timestamp DESC', 'LIMIT' => 50));
$revs = array();
while ($r = $dbr->fetchObject($res)) {
$revs[] = new Revision($r);
}
if (empty($revs)) {
// That's *very* weird
return wfMsg('changeauthor-weirderror');
}
$retval = Xml::openElement('form', array('method' => 'post', 'action' => $wgScript));
$retval .= Html::Hidden('title', $this->selfTitle->getPrefixedDBkey());
$retval .= Html::Hidden('action', 'change');
$retval .= Html::Hidden('targetpage', $title->getPrefixedDBkey());
$retval .= Xml::openElement('fieldset');
$retval .= Xml::element('p', array(), wfMsg('changeauthor-explanation-multi'));
$retval .= Xml::inputLabel(wfMsg('changeauthor-comment'), 'comment', 'comment', 50);
$retval .= Xml::submitButton(wfMsgExt('changeauthor-changeauthors-multi', array('parsemag', 'escape'), count($revs)));
if ($errMsg != '') {
$retval .= Xml::openElement('p') . Xml::openElement('b');
$retval .= Xml::element('font', array('color' => 'red'), $errMsg);
$retval .= Xml::closeElement('b') . Xml::closeElement('p');
}
$retval .= Xml::element('h2', array(), $title->getPrefixedText());
$retval .= Xml::openElement('ul');
$count = count($revs);
foreach ($revs as $i => $rev) {
$retval .= $this->buildRevisionLine($rev, $title, $i == 0, $i == $count - 1);
}
$retval .= Xml::closeElement('ul');
$retval .= Xml::closeElement('fieldset');
$retval .= Xml::closeElement('form');
return $retval;
}
/**
* Get the Revision object of the oldest revision
* @return Revision|null
*/
public function getOldestRevision() {
wfProfileIn( __METHOD__ );
// Try using the slave database first, then try the master
$continue = 2;
$db = wfGetDB( DB_SLAVE );
$revSelectFields = Revision::selectFields();
$row = null;
while ( $continue ) {
$row = $db->selectRow(
array( 'page', 'revision' ),
$revSelectFields,
array(
'page_namespace' => $this->mTitle->getNamespace(),
'page_title' => $this->mTitle->getDBkey(),
'rev_page = page_id'
),
__METHOD__,
array(
'ORDER BY' => 'rev_timestamp ASC'
)
);
if ( $row ) {
$continue = 0;
} else {
$db = wfGetDB( DB_MASTER );
$continue--;
}
}
wfProfileOut( __METHOD__ );
return $row ? Revision::newFromRow( $row ) : null;
}
public function execute()
{
$params = $this->extractRequestParams(false);
// If any of those parameters are used, work in 'enumeration' mode.
// Enum mode can only be used when exactly one page is provided.
// Enumerating revisions on multiple pages make it extremely
// difficult to manage continuations and require additional SQL indexes
$enumRevMode = !is_null($params['user']) || !is_null($params['excludeuser']) || !is_null($params['limit']) || !is_null($params['startid']) || !is_null($params['endid']) || $params['dir'] === 'newer' || !is_null($params['start']) || !is_null($params['end']);
$pageSet = $this->getPageSet();
$pageCount = $pageSet->getGoodTitleCount();
$revCount = $pageSet->getRevisionCount();
// Optimization -- nothing to do
if ($revCount === 0 && $pageCount === 0) {
return;
}
if ($revCount > 0 && $enumRevMode) {
$this->dieUsage('The revids= parameter may not be used with the list options (limit, startid, endid, dirNewer, start, end).', 'revids');
}
if ($pageCount > 1 && $enumRevMode) {
$this->dieUsage('titles, pageids or a generator was used to supply multiple pages, but the limit, startid, endid, dirNewer, user, excludeuser, start and end parameters may only be used on a single page.', 'multpages');
}
if (!is_null($params['difftotext'])) {
$this->difftotext = $params['difftotext'];
} elseif (!is_null($params['diffto'])) {
if ($params['diffto'] == 'cur') {
$params['diffto'] = 0;
}
if ((!ctype_digit($params['diffto']) || $params['diffto'] < 0) && $params['diffto'] != 'prev' && $params['diffto'] != 'next') {
$this->dieUsage('rvdiffto must be set to a non-negative number, "prev", "next" or "cur"', 'diffto');
}
// Check whether the revision exists and is readable,
// DifferenceEngine returns a rather ambiguous empty
// string if that's not the case
if ($params['diffto'] != 0) {
$difftoRev = Revision::newFromID($params['diffto']);
if (!$difftoRev) {
$this->dieUsageMsg(array('nosuchrevid', $params['diffto']));
}
if ($difftoRev->isDeleted(Revision::DELETED_TEXT)) {
$this->setWarning("Couldn't diff to r{$difftoRev->getID()}: content is hidden");
$params['diffto'] = null;
}
}
$this->diffto = $params['diffto'];
}
$db = $this->getDB();
$this->addTables('page');
$this->addFields(Revision::selectFields());
$this->addWhere('page_id = rev_page');
$prop = array_flip($params['prop']);
// Optional fields
$this->fld_ids = isset($prop['ids']);
// $this->addFieldsIf('rev_text_id', $this->fld_ids); // should this be exposed?
$this->fld_flags = isset($prop['flags']);
$this->fld_timestamp = isset($prop['timestamp']);
$this->fld_comment = isset($prop['comment']);
$this->fld_parsedcomment = isset($prop['parsedcomment']);
$this->fld_size = isset($prop['size']);
$this->fld_sha1 = isset($prop['sha1']);
$this->fld_userid = isset($prop['userid']);
$this->fld_user = isset($prop['user']);
$this->token = $params['token'];
// Possible indexes used
$index = array();
$userMax = $this->fld_content ? ApiBase::LIMIT_SML1 : ApiBase::LIMIT_BIG1;
$botMax = $this->fld_content ? ApiBase::LIMIT_SML2 : ApiBase::LIMIT_BIG2;
$limit = $params['limit'];
if ($limit == 'max') {
$limit = $this->getMain()->canApiHighLimits() ? $botMax : $userMax;
$this->getResult()->setParsedLimit($this->getModuleName(), $limit);
}
if (!is_null($this->token) || $pageCount > 0) {
$this->addFields(Revision::selectPageFields());
}
if (isset($prop['tags'])) {
$this->fld_tags = true;
$this->addTables('tag_summary');
$this->addJoinConds(array('tag_summary' => array('LEFT JOIN', array('rev_id=ts_rev_id'))));
$this->addFields('ts_tags');
}
if (!is_null($params['tag'])) {
$this->addTables('change_tag');
$this->addJoinConds(array('change_tag' => array('INNER JOIN', array('rev_id=ct_rev_id'))));
$this->addWhereFld('ct_tag', $params['tag']);
global $wgOldChangeTagsIndex;
$index['change_tag'] = $wgOldChangeTagsIndex ? 'ct_tag' : 'change_tag_tag_id';
}
if (isset($prop['content']) || !is_null($this->difftotext)) {
// For each page we will request, the user must have read rights for that page
foreach ($pageSet->getGoodTitles() as $title) {
if (!$title->userCan('read')) {
$this->dieUsage('The current user is not allowed to read ' . $title->getPrefixedText(), 'accessdenied');
}
}
$this->addTables('text');
$this->addWhere('rev_text_id=old_id');
$this->addFields('old_id');
$this->addFields(Revision::selectTextFields());
$this->fld_content = isset($prop['content']);
$this->expandTemplates = $params['expandtemplates'];
$this->generateXML = $params['generatexml'];
$this->parseContent = $params['parse'];
if ($this->parseContent) {
// Must manually initialize unset limit
if (is_null($limit)) {
$limit = 1;
}
// We are only going to parse 1 revision per request
$this->validateLimit('limit', $limit, 1, 1, 1);
}
if (isset($params['section'])) {
$this->section = $params['section'];
} else {
$this->section = false;
}
}
// add user name, if needed
if ($this->fld_user) {
$this->addTables('user');
$this->addJoinConds(array('user' => Revision::userJoinCond()));
$this->addFields(Revision::selectUserFields());
}
// Bug 24166 - API error when using rvprop=tags
$this->addTables('revision');
if ($enumRevMode) {
// This is mostly to prevent parameter errors (and optimize SQL?)
if (!is_null($params['startid']) && !is_null($params['start'])) {
$this->dieUsage('start and startid cannot be used together', 'badparams');
}
if (!is_null($params['endid']) && !is_null($params['end'])) {
$this->dieUsage('end and endid cannot be used together', 'badparams');
}
if (!is_null($params['user']) && !is_null($params['excludeuser'])) {
$this->dieUsage('user and excludeuser cannot be used together', 'badparams');
}
// Continuing effectively uses startid. But we can't use rvstartid
// directly, because there is no way to tell the client to ''not''
// send rvstart if it sent it in the original query. So instead we
// send the continuation startid as rvcontinue, and ignore both
// rvstart and rvstartid when that is supplied.
if (!is_null($params['continue'])) {
$params['startid'] = $params['continue'];
unset($params['start']);
}
// This code makes an assumption that sorting by rev_id and rev_timestamp produces
// the same result. This way users may request revisions starting at a given time,
// but to page through results use the rev_id returned after each page.
// Switching to rev_id removes the potential problem of having more than
// one row with the same timestamp for the same page.
// The order needs to be the same as start parameter to avoid SQL filesort.
if (is_null($params['startid']) && is_null($params['endid'])) {
$this->addTimestampWhereRange('rev_timestamp', $params['dir'], $params['start'], $params['end']);
} else {
$this->addWhereRange('rev_id', $params['dir'], $params['startid'], $params['endid']);
// One of start and end can be set
// If neither is set, this does nothing
$this->addTimestampWhereRange('rev_timestamp', $params['dir'], $params['start'], $params['end'], false);
}
// must manually initialize unset limit
if (is_null($limit)) {
$limit = 10;
}
$this->validateLimit('limit', $limit, 1, $userMax, $botMax);
// There is only one ID, use it
$ids = array_keys($pageSet->getGoodTitles());
$this->addWhereFld('rev_page', reset($ids));
if (!is_null($params['user'])) {
$this->addWhereFld('rev_user_text', $params['user']);
} elseif (!is_null($params['excludeuser'])) {
$this->addWhere('rev_user_text != ' . $db->addQuotes($params['excludeuser']));
}
if (!is_null($params['user']) || !is_null($params['excludeuser'])) {
// Paranoia: avoid brute force searches (bug 17342)
$this->addWhere($db->bitAnd('rev_deleted', Revision::DELETED_USER) . ' = 0');
}
} elseif ($revCount > 0) {
$max = $this->getMain()->canApiHighLimits() ? $botMax : $userMax;
$revs = $pageSet->getRevisionIDs();
if (self::truncateArray($revs, $max)) {
$this->setWarning("Too many values supplied for parameter 'revids': the limit is {$max}");
}
// Get all revision IDs
$this->addWhereFld('rev_id', array_keys($revs));
if (!is_null($params['continue'])) {
$this->addWhere('rev_id >= ' . intval($params['continue']));
}
$this->addOption('ORDER BY', 'rev_id');
// assumption testing -- we should never get more then $revCount rows.
$limit = $revCount;
} elseif ($pageCount > 0) {
$max = $this->getMain()->canApiHighLimits() ? $botMax : $userMax;
$titles = $pageSet->getGoodTitles();
if (self::truncateArray($titles, $max)) {
$this->setWarning("Too many values supplied for parameter 'titles': the limit is {$max}");
}
// When working in multi-page non-enumeration mode,
// limit to the latest revision only
$this->addWhere('page_id=rev_page');
$this->addWhere('page_latest=rev_id');
// Get all page IDs
$this->addWhereFld('page_id', array_keys($titles));
// Every time someone relies on equality propagation, god kills a kitten :)
$this->addWhereFld('rev_page', array_keys($titles));
if (!is_null($params['continue'])) {
$cont = explode('|', $params['continue']);
if (count($cont) != 2) {
$this->dieUsage('Invalid continue param. You should pass the original ' . 'value returned by the previous query', '_badcontinue');
}
$pageid = intval($cont[0]);
$revid = intval($cont[1]);
$this->addWhere("rev_page > {$pageid} OR " . "(rev_page = {$pageid} AND " . "rev_id >= {$revid})");
}
$this->addOption('ORDER BY', array('rev_page', 'rev_id'));
// assumption testing -- we should never get more then $pageCount rows.
$limit = $pageCount;
} else {
ApiBase::dieDebug(__METHOD__, 'param validation?');
}
$this->addOption('LIMIT', $limit + 1);
$this->addOption('USE INDEX', $index);
$count = 0;
$res = $this->select(__METHOD__);
foreach ($res as $row) {
if (++$count > $limit) {
// We've reached the one extra which shows that there are additional pages to be had. Stop here...
if (!$enumRevMode) {
ApiBase::dieDebug(__METHOD__, 'Got more rows then expected');
// bug report
}
$this->setContinueEnumParameter('continue', intval($row->rev_id));
break;
}
$fit = $this->addPageSubItem($row->rev_page, $this->extractRowInfo($row), 'rev');
if (!$fit) {
if ($enumRevMode) {
$this->setContinueEnumParameter('continue', intval($row->rev_id));
} elseif ($revCount > 0) {
$this->setContinueEnumParameter('continue', intval($row->rev_id));
} else {
$this->setContinueEnumParameter('continue', intval($row->rev_page) . '|' . intval($row->rev_id));
}
break;
}
}
}
