wiki.techinc.nl/includes/api/ApiQueryUserContributions.php
blackspirit96 82ee5f6e4c API should allow querying user contribs by userid
It verifies that the userids are valid and then it gathers
all the contribs. Anonymous users are not suported by userids
because every anonymous user have userid === 0.

Bug: T114465
Change-Id: Id4f4fb76ea06332a7c83a55922fdfda2d665e85a
2017-01-06 13:56:12 +00:00

587 lines
18 KiB
PHP

<?php
/**
*
*
* Created on Oct 16, 2006
*
* Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@gmail.com"
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* This query action adds a list of a specified user's contributions to the output.
*
* @ingroup API
*/
class ApiQueryContributions extends ApiQueryBase {
public function __construct( ApiQuery $query, $moduleName ) {
parent::__construct( $query, $moduleName, 'uc' );
}
private $params, $prefixMode, $userprefix, $multiUserMode, $idMode, $usernames, $userids,
$parentLens;
private $fld_ids = false, $fld_title = false, $fld_timestamp = false,
$fld_comment = false, $fld_parsedcomment = false, $fld_flags = false,
$fld_patrolled = false, $fld_tags = false, $fld_size = false, $fld_sizediff = false;
public function execute() {
// Parse some parameters
$this->params = $this->extractRequestParams();
$prop = array_flip( $this->params['prop'] );
$this->fld_ids = isset( $prop['ids'] );
$this->fld_title = isset( $prop['title'] );
$this->fld_comment = isset( $prop['comment'] );
$this->fld_parsedcomment = isset( $prop['parsedcomment'] );
$this->fld_size = isset( $prop['size'] );
$this->fld_sizediff = isset( $prop['sizediff'] );
$this->fld_flags = isset( $prop['flags'] );
$this->fld_timestamp = isset( $prop['timestamp'] );
$this->fld_patrolled = isset( $prop['patrolled'] );
$this->fld_tags = isset( $prop['tags'] );
// Most of this code will use the 'contributions' group DB, which can map to replica DBs
// with extra user based indexes or partioning by user. The additional metadata
// queries should use a regular replica DB since the lookup pattern is not all by user.
$dbSecondary = $this->getDB(); // any random replica DB
// TODO: if the query is going only against the revision table, should this be done?
$this->selectNamedDB( 'contributions', DB_REPLICA, 'contributions' );
$this->requireOnlyOneParameter( $this->params, 'userprefix', 'userids', 'user' );
$this->idMode = false;
if ( isset( $this->params['userprefix'] ) ) {
$this->prefixMode = true;
$this->multiUserMode = true;
$this->userprefix = $this->params['userprefix'];
} elseif ( isset( $this->params['userids'] ) ) {
$this->userids = [];
if ( !count( $this->params['userids'] ) ) {
$encParamName = $this->encodeParamName( 'userids' );
$this->dieWithError( [ 'apierror-paramempty', $encParamName ], "paramempty_$encParamName" );
}
foreach ( $this->params['userids'] as $uid ) {
if ( $uid <= 0 ) {
$this->dieWithError( [ 'apierror-invaliduserid', $uid ], 'invaliduserid' );
}
$this->userids[] = $uid;
}
$this->prefixMode = false;
$this->multiUserMode = ( count( $this->params['userids'] ) > 1 );
$this->idMode = true;
} else {
$anyIPs = false;
$this->userids = [];
$this->usernames = [];
if ( !count( $this->params['user'] ) ) {
$encParamName = $this->encodeParamName( 'user' );
$this->dieWithError(
[ 'apierror-paramempty', $encParamName ], "paramempty_$encParamName"
);
}
foreach ( $this->params['user'] as $u ) {
if ( $u === '' ) {
$encParamName = $this->encodeParamName( 'user' );
$this->dieWithError(
[ 'apierror-paramempty', $encParamName ], "paramempty_$encParamName"
);
}
if ( User::isIP( $u ) ) {
$anyIPs = true;
$this->usernames[] = $u;
} else {
$name = User::getCanonicalName( $u, 'valid' );
if ( $name === false ) {
$encParamName = $this->encodeParamName( 'user' );
$this->dieWithError(
[ 'apierror-baduser', $encParamName, wfEscapeWikiText( $u ) ], "baduser_$encParamName"
);
}
$this->usernames[] = $name;
}
}
$this->prefixMode = false;
$this->multiUserMode = ( count( $this->params['user'] ) > 1 );
if ( !$anyIPs ) {
$dbr = $this->getDB();
$res = $dbr->select( 'user', 'user_id', [ 'user_name' => $this->usernames ], __METHOD__ );
foreach ( $res as $row ) {
$this->userids[] = $row->user_id;
}
$this->idMode = count( $this->userids ) === count( $this->usernames );
}
}
$this->prepareQuery();
$hookData = [];
// Do the actual query.
$res = $this->select( __METHOD__, [], $hookData );
if ( $this->fld_sizediff ) {
$revIds = [];
foreach ( $res as $row ) {
if ( $row->rev_parent_id ) {
$revIds[] = $row->rev_parent_id;
}
}
$this->parentLens = Revision::getParentLengths( $dbSecondary, $revIds );
$res->rewind(); // reset
}
// Initialise some variables
$count = 0;
$limit = $this->params['limit'];
// Fetch each row
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...
$this->setContinueEnumParameter( 'continue', $this->continueStr( $row ) );
break;
}
$vals = $this->extractRowInfo( $row );
$fit = $this->processRow( $row, $vals, $hookData ) &&
$this->getResult()->addValue( [ 'query', $this->getModuleName() ], null, $vals );
if ( !$fit ) {
$this->setContinueEnumParameter( 'continue', $this->continueStr( $row ) );
break;
}
}
$this->getResult()->addIndexedTagName(
[ 'query', $this->getModuleName() ],
'item'
);
}
/**
* Prepares the query and returns the limit of rows requested
*/
private function prepareQuery() {
// We're after the revision table, and the corresponding page
// row for anything we retrieve. We may also need the
// recentchanges row and/or tag summary row.
$user = $this->getUser();
$tables = [ 'page', 'revision' ]; // Order may change
$this->addWhere( 'page_id=rev_page' );
// Handle continue parameter
if ( !is_null( $this->params['continue'] ) ) {
$continue = explode( '|', $this->params['continue'] );
$db = $this->getDB();
if ( $this->multiUserMode ) {
$this->dieContinueUsageIf( count( $continue ) != 4 );
$modeFlag = array_shift( $continue );
$this->dieContinueUsageIf( !in_array( $modeFlag, [ 'id', 'name' ] ) );
if ( $this->idMode && $modeFlag === 'name' ) {
// The users were created since this query started, but we
// can't go back and change modes now. So just keep on with
// name mode.
$this->idMode = false;
}
$this->dieContinueUsageIf( ( $modeFlag === 'id' ) !== $this->idMode );
$userField = $this->idMode ? 'rev_user' : 'rev_user_text';
$encUser = $db->addQuotes( array_shift( $continue ) );
} else {
$this->dieContinueUsageIf( count( $continue ) != 2 );
}
$encTS = $db->addQuotes( $db->timestamp( $continue[0] ) );
$encId = (int)$continue[1];
$this->dieContinueUsageIf( $encId != $continue[1] );
$op = ( $this->params['dir'] == 'older' ? '<' : '>' );
if ( $this->multiUserMode ) {
$this->addWhere(
"$userField $op $encUser OR " .
"($userField = $encUser AND " .
"(rev_timestamp $op $encTS OR " .
"(rev_timestamp = $encTS AND " .
"rev_id $op= $encId)))"
);
} else {
$this->addWhere(
"rev_timestamp $op $encTS OR " .
"(rev_timestamp = $encTS AND " .
"rev_id $op= $encId)"
);
}
}
// Don't include any revisions where we're not supposed to be able to
// see the username.
if ( !$user->isAllowed( 'deletedhistory' ) ) {
$bitmask = Revision::DELETED_USER;
} elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
$bitmask = Revision::DELETED_USER | Revision::DELETED_RESTRICTED;
} else {
$bitmask = 0;
}
if ( $bitmask ) {
$this->addWhere( $this->getDB()->bitAnd( 'rev_deleted', $bitmask ) . " != $bitmask" );
}
// We only want pages by the specified users.
if ( $this->prefixMode ) {
$this->addWhere( 'rev_user_text' .
$this->getDB()->buildLike( $this->userprefix, $this->getDB()->anyString() ) );
} elseif ( $this->idMode ) {
$this->addWhereFld( 'rev_user', $this->userids );
} else {
$this->addWhereFld( 'rev_user_text', $this->usernames );
}
// ... and in the specified timeframe.
// Ensure the same sort order for rev_user/rev_user_text and rev_timestamp
// so our query is indexed
if ( $this->multiUserMode ) {
$this->addWhereRange( $this->idMode ? 'rev_user' : 'rev_user_text',
$this->params['dir'], null, null );
}
$this->addTimestampWhereRange( 'rev_timestamp',
$this->params['dir'], $this->params['start'], $this->params['end'] );
// Include in ORDER BY for uniqueness
$this->addWhereRange( 'rev_id', $this->params['dir'], null, null );
$this->addWhereFld( 'page_namespace', $this->params['namespace'] );
$show = $this->params['show'];
if ( $this->params['toponly'] ) { // deprecated/old param
$show[] = 'top';
}
if ( !is_null( $show ) ) {
$show = array_flip( $show );
if ( ( isset( $show['minor'] ) && isset( $show['!minor'] ) )
|| ( isset( $show['patrolled'] ) && isset( $show['!patrolled'] ) )
|| ( isset( $show['top'] ) && isset( $show['!top'] ) )
|| ( isset( $show['new'] ) && isset( $show['!new'] ) )
) {
$this->dieWithError( 'apierror-show' );
}
$this->addWhereIf( 'rev_minor_edit = 0', isset( $show['!minor'] ) );
$this->addWhereIf( 'rev_minor_edit != 0', isset( $show['minor'] ) );
$this->addWhereIf( 'rc_patrolled = 0', isset( $show['!patrolled'] ) );
$this->addWhereIf( 'rc_patrolled != 0', isset( $show['patrolled'] ) );
$this->addWhereIf( 'rev_id != page_latest', isset( $show['!top'] ) );
$this->addWhereIf( 'rev_id = page_latest', isset( $show['top'] ) );
$this->addWhereIf( 'rev_parent_id != 0', isset( $show['!new'] ) );
$this->addWhereIf( 'rev_parent_id = 0', isset( $show['new'] ) );
}
$this->addOption( 'LIMIT', $this->params['limit'] + 1 );
// Mandatory fields: timestamp allows request continuation
// ns+title checks if the user has access rights for this page
// user_text is necessary if multiple users were specified
$this->addFields( [
'rev_id',
'rev_timestamp',
'page_namespace',
'page_title',
'rev_user',
'rev_user_text',
'rev_deleted'
] );
if ( isset( $show['patrolled'] ) || isset( $show['!patrolled'] ) ||
$this->fld_patrolled
) {
if ( !$user->useRCPatrol() && !$user->useNPPatrol() ) {
$this->dieWithError( 'apierror-permissiondenied-patrolflag', 'permissiondenied' );
}
// Use a redundant join condition on both
// timestamp and ID so we can use the timestamp
// index
$index['recentchanges'] = 'rc_user_text';
if ( isset( $show['patrolled'] ) || isset( $show['!patrolled'] ) ) {
// Put the tables in the right order for
// STRAIGHT_JOIN
$tables = [ 'revision', 'recentchanges', 'page' ];
$this->addOption( 'STRAIGHT_JOIN' );
$this->addWhere( 'rc_user_text=rev_user_text' );
$this->addWhere( 'rc_timestamp=rev_timestamp' );
$this->addWhere( 'rc_this_oldid=rev_id' );
} else {
$tables[] = 'recentchanges';
$this->addJoinConds( [ 'recentchanges' => [
'LEFT JOIN', [
'rc_user_text=rev_user_text',
'rc_timestamp=rev_timestamp',
'rc_this_oldid=rev_id' ] ] ] );
}
}
$this->addTables( $tables );
$this->addFieldsIf( 'rev_page', $this->fld_ids );
$this->addFieldsIf( 'page_latest', $this->fld_flags );
// $this->addFieldsIf( 'rev_text_id', $this->fld_ids ); // Should this field be exposed?
$this->addFieldsIf( 'rev_comment', $this->fld_comment || $this->fld_parsedcomment );
$this->addFieldsIf( 'rev_len', $this->fld_size || $this->fld_sizediff );
$this->addFieldsIf( 'rev_minor_edit', $this->fld_flags );
$this->addFieldsIf( 'rev_parent_id', $this->fld_flags || $this->fld_sizediff || $this->fld_ids );
$this->addFieldsIf( 'rc_patrolled', $this->fld_patrolled );
if ( $this->fld_tags ) {
$this->addTables( 'tag_summary' );
$this->addJoinConds(
[ 'tag_summary' => [ 'LEFT JOIN', [ 'rev_id=ts_rev_id' ] ] ]
);
$this->addFields( 'ts_tags' );
}
if ( isset( $this->params['tag'] ) ) {
$this->addTables( 'change_tag' );
$this->addJoinConds(
[ 'change_tag' => [ 'INNER JOIN', [ 'rev_id=ct_rev_id' ] ] ]
);
$this->addWhereFld( 'ct_tag', $this->params['tag'] );
}
if ( isset( $index ) ) {
$this->addOption( 'USE INDEX', $index );
}
}
/**
* Extract fields from the database row and append them to a result array
*
* @param stdClass $row
* @return array
*/
private function extractRowInfo( $row ) {
$vals = [];
$anyHidden = false;
if ( $row->rev_deleted & Revision::DELETED_TEXT ) {
$vals['texthidden'] = true;
$anyHidden = true;
}
// Any rows where we can't view the user were filtered out in the query.
$vals['userid'] = (int)$row->rev_user;
$vals['user'] = $row->rev_user_text;
if ( $row->rev_deleted & Revision::DELETED_USER ) {
$vals['userhidden'] = true;
$anyHidden = true;
}
if ( $this->fld_ids ) {
$vals['pageid'] = intval( $row->rev_page );
$vals['revid'] = intval( $row->rev_id );
// $vals['textid'] = intval( $row->rev_text_id ); // todo: Should this field be exposed?
if ( !is_null( $row->rev_parent_id ) ) {
$vals['parentid'] = intval( $row->rev_parent_id );
}
}
$title = Title::makeTitle( $row->page_namespace, $row->page_title );
if ( $this->fld_title ) {
ApiQueryBase::addTitleInfo( $vals, $title );
}
if ( $this->fld_timestamp ) {
$vals['timestamp'] = wfTimestamp( TS_ISO_8601, $row->rev_timestamp );
}
if ( $this->fld_flags ) {
$vals['new'] = $row->rev_parent_id == 0 && !is_null( $row->rev_parent_id );
$vals['minor'] = (bool)$row->rev_minor_edit;
$vals['top'] = $row->page_latest == $row->rev_id;
}
if ( ( $this->fld_comment || $this->fld_parsedcomment ) && isset( $row->rev_comment ) ) {
if ( $row->rev_deleted & Revision::DELETED_COMMENT ) {
$vals['commenthidden'] = true;
$anyHidden = true;
}
$userCanView = Revision::userCanBitfield(
$row->rev_deleted,
Revision::DELETED_COMMENT, $this->getUser()
);
if ( $userCanView ) {
if ( $this->fld_comment ) {
$vals['comment'] = $row->rev_comment;
}
if ( $this->fld_parsedcomment ) {
$vals['parsedcomment'] = Linker::formatComment( $row->rev_comment, $title );
}
}
}
if ( $this->fld_patrolled ) {
$vals['patrolled'] = (bool)$row->rc_patrolled;
}
if ( $this->fld_size && !is_null( $row->rev_len ) ) {
$vals['size'] = intval( $row->rev_len );
}
if ( $this->fld_sizediff
&& !is_null( $row->rev_len )
&& !is_null( $row->rev_parent_id )
) {
$parentLen = isset( $this->parentLens[$row->rev_parent_id] )
? $this->parentLens[$row->rev_parent_id]
: 0;
$vals['sizediff'] = intval( $row->rev_len - $parentLen );
}
if ( $this->fld_tags ) {
if ( $row->ts_tags ) {
$tags = explode( ',', $row->ts_tags );
ApiResult::setIndexedTagName( $tags, 'tag' );
$vals['tags'] = $tags;
} else {
$vals['tags'] = [];
}
}
if ( $anyHidden && $row->rev_deleted & Revision::DELETED_RESTRICTED ) {
$vals['suppressed'] = true;
}
return $vals;
}
private function continueStr( $row ) {
if ( $this->multiUserMode ) {
if ( $this->idMode ) {
return "id|$row->rev_user|$row->rev_timestamp|$row->rev_id";
} else {
return "name|$row->rev_user_text|$row->rev_timestamp|$row->rev_id";
}
} else {
return "$row->rev_timestamp|$row->rev_id";
}
}
public function getCacheMode( $params ) {
// This module provides access to deleted revisions and patrol flags if
// the requester is logged in
return 'anon-public-user-private';
}
public function getAllowedParams() {
return [
'limit' => [
ApiBase::PARAM_DFLT => 10,
ApiBase::PARAM_TYPE => 'limit',
ApiBase::PARAM_MIN => 1,
ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
],
'start' => [
ApiBase::PARAM_TYPE => 'timestamp'
],
'end' => [
ApiBase::PARAM_TYPE => 'timestamp'
],
'continue' => [
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
],
'user' => [
ApiBase::PARAM_TYPE => 'user',
ApiBase::PARAM_ISMULTI => true
],
'userids' => [
ApiBase::PARAM_TYPE => 'integer',
ApiBase::PARAM_ISMULTI => true
],
'userprefix' => null,
'dir' => [
ApiBase::PARAM_DFLT => 'older',
ApiBase::PARAM_TYPE => [
'newer',
'older'
],
ApiBase::PARAM_HELP_MSG => 'api-help-param-direction',
],
'namespace' => [
ApiBase::PARAM_ISMULTI => true,
ApiBase::PARAM_TYPE => 'namespace'
],
'prop' => [
ApiBase::PARAM_ISMULTI => true,
ApiBase::PARAM_DFLT => 'ids|title|timestamp|comment|size|flags',
ApiBase::PARAM_TYPE => [
'ids',
'title',
'timestamp',
'comment',
'parsedcomment',
'size',
'sizediff',
'flags',
'patrolled',
'tags'
],
ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
],
'show' => [
ApiBase::PARAM_ISMULTI => true,
ApiBase::PARAM_TYPE => [
'minor',
'!minor',
'patrolled',
'!patrolled',
'top',
'!top',
'new',
'!new',
],
ApiBase::PARAM_HELP_MSG => [
'apihelp-query+usercontribs-param-show',
$this->getConfig()->get( 'RCMaxAge' )
],
],
'tag' => null,
'toponly' => [
ApiBase::PARAM_DFLT => false,
ApiBase::PARAM_DEPRECATED => true,
],
];
}
protected function getExamplesMessages() {
return [
'action=query&list=usercontribs&ucuser=Example'
=> 'apihelp-query+usercontribs-example-user',
'action=query&list=usercontribs&ucuserprefix=192.0.2.'
=> 'apihelp-query+usercontribs-example-ipprefix',
];
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/API:Usercontribs';
}
}