wikimedia/mediawiki-extensions-AbuseFilter
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mediawiki-extensions-AbuseF.../tests/phpunit/AbuseFilterTest.php
Daimona Eaytoy 4720c97530 Add a new class for methods related to running filters 
Currently we strongly abuse (pardon the pun) the AbuseFilter class: its
purpose should be to hold static functions intended as generic utility
functions (e.g. to format messages, determine whether a filter is global
etc.), but we actually use it for all methods related to running filters.
This patch creates a new class, AbuseFilterRunner, containing all such
methods, which have been made non-static. This leads to several
improvements (also for related methods and the parser), and opens the
way to further improve the code.
Aside from making the code prettier, less global and easier to test,
this patch could also produce a performance improvement, although I
don't have tools to measure that.
Also note that many public methods have been removed, and almost any of
them has been made protected; a couple of them (the ones used from outside)
are left for back-compat, and will be removed in the future.

Change-Id: I2eab2e50356eeb5224446ee2d0df9c787ae95b80
2019-07-23 19:06:27 +00:00

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<?php
use MediaWiki\Block\DatabaseBlock;
use MediaWiki\MediaWikiServices;
use MediaWiki\Revision\MutableRevisionRecord;
use MediaWiki\Revision\RevisionRecord;
use MediaWiki\Revision\SlotRecord;
/**
* Generic tests for utility functions in AbuseFilter
*
* 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
*
* @license GPL-2.0-or-later
*/
/**
* @group Test
* @group AbuseFilter
* @group AbuseFilterGeneric
* @group Database
*
* @covers AbuseFilter
* @covers AFPData
* @covers AbuseFilterVariableHolder
* @covers AFComputedVariable
*/
class AbuseFilterTest extends MediaWikiTestCase {
/** A fake timestamp to use in several time-related tests. */
const FAKE_TIME = 1514700000;
/**
* @var array These tables will be deleted in parent::tearDown.
* We need it to happen to make tests on fresh pages.
*/
protected $tablesUsed = [
'page',
'page_restrictions',
'user',
'text',
'abuse_filter',
'abuse_filter_history',
'abuse_filter_log',
'abuse_filter_actions'
];
/**
* @see MediaWikiTestCase::setUp
*/
protected function setUp() {
parent::setUp();
// Make sure that the config we're using is the one we're expecting
$this->setMwGlobals( [
'wgRestrictionTypes' => [
'create',
'edit',
'move',
'upload'
],
'wgAbuseFilterRestrictions' => [
'degroup' => true
],
'wgAbuseFilterIsCentral' => true,
'wgAbuseFilterActions' => [
'throttle' => true,
'warn' => true,
'disallow' => true,
'blockautopromote' => true,
'block' => true,
'rangeblock' => true,
'degroup' => true,
'tag' => true
],
'wgAbuseFilterValidGroups' => [
'default',
'flow'
],
'wgEnableParserLimitReporting' => false
] );
$this->overrideMwServices();
}
/**
* @see MediaWikiTestCase::tearDown
*/
protected function tearDown() {
MWTimestamp::setFakeTime( false );
parent::tearDown();
}
/**
* Given the name of a variable, naturally sets it to a determined amount
*
* @param User $user
* @param string $var The variable name
* @return array the first position is the result (mixed), the second is a boolean
* indicating whether we've been able to compute the given variable
*/
private function computeExpectedUserVariable( User $user, $var ) {
$success = true;
switch ( $var ) {
case 'user_editcount':
// Create a page and make the user edit it 7 times
$page = WikiPage::factory( Title::newFromText( 'UTPage' ) );
$page->doEditContent(
new WikitextContent( 'AbuseFilter test, page creation' ),
'Testing page for AbuseFilter',
EDIT_NEW,
false,
$user
);
for ( $i = 1; $i <= 7; $i++ ) {
$page->doEditContent(
new WikitextContent( "AbuseFilter test, page revision #$i" ),
'Testing page for AbuseFilter',
EDIT_UPDATE,
false,
$user
);
}
// Reload to reflect deferred update
$user->clearInstanceCache();
$result = 7;
break;
case 'user_name':
$result = $user->getName();
break;
case 'user_emailconfirm':
$time = wfTimestampNow();
$user->setEmailAuthenticationTimestamp( $time );
$result = $time;
break;
case 'user_groups':
$result = $user->getEffectiveGroups();
$user->addGroup( 'AFTestUserGroups' );
array_unshift( $result, 'AFTestUserGroups' );
break;
case 'user_rights':
$rights = [ 'abusefilter-foo', 'abusefilter-bar' ];
$this->setGroupPermissions( [
'AFTestUserRights' => array_fill_keys( $rights, true )
] );
$this->overrideMwServices();
$previous = $user->getRights();
$user->addGroup( 'AFTestUserRights' );
$user->clearInstanceCache();
$result = array_merge( $rights, $previous );
break;
case 'user_blocked':
$block = new DatabaseBlock();
$block->setTarget( $user );
$block->setBlocker( 'UTSysop' );
$block->mReason = 'Testing AbuseFilter variable user_blocked';
$block->mExpiry = 'infinity';
$block->insert();
$result = true;
break;
default:
$success = false;
$result = null;
}
return [ $result, $success ];
}
/**
* Check that the generated user-related variables are correct
*
* @param string $varName The name of the variable we're currently testing
* @covers AbuseFilter::generateUserVars
* @dataProvider provideUserVars
*/
public function testGenerateUserVars( $varName ) {
$user = $this->getMutableTestUser()->getUser();
list( $computed, $successfully ) = $this->computeExpectedUserVariable( $user, $varName );
if ( !$successfully ) {
$this->fail( "Given unknown user-related variable $varName." );
}
$variableHolder = AbuseFilter::generateUserVars( $user );
$actual = $variableHolder->getVar( $varName )->toNative();
$this->assertSame( $computed, $actual );
}
/**
* Data provider for testGenerateUserVars
* @return Generator|array
*/
public function provideUserVars() {
$vars = [
'user_editcount',
'user_name',
'user_emailconfirm',
'user_groups',
'user_rights',
'user_blocked'
];
foreach ( $vars as $var ) {
yield $var => [ $var ];
}
}
/**
* Check that user_age is correct. Needs a separate function to take into account the
* difference between timestamps due to test execution time
*
* @covers AbuseFilter::generateUserVars
*/
public function testUserAgeVar() {
MWTimestamp::setFakeTime( self::FAKE_TIME );
$user = User::newFromName( 'TestUserAge' );
$user->addToDatabase();
$expected = 163;
// Set a fake timestamp so that execution time won't be a problem
MWTimestamp::setFakeTime( self::FAKE_TIME + $expected );
$variableHolder = AbuseFilter::generateUserVars( $user );
$actual = $variableHolder->getVar( 'user_age' )->toNative();
$this->assertEquals( $expected, $actual );
}
/**
* Given the name of a variable, naturally sets it to a determined amount
*
* @param Title $title The title to use for computing variables
* @param string $suffix The suffix of the variable
* @param string|null $options Further options for the test
* @return array the first position is the result (mixed), the second is a boolean
* indicating whether we've been able to compute the given variable. If false, then
* the result may be null if the requested variable doesn't exist, or false if there
* has been some other problem.
*/
private function computeExpectedTitleVariable( Title $title, $suffix, $options = null ) {
$page = WikiPage::factory( $title );
$user = $this->getMutableTestUser()->getUser();
if ( $options === 'restricted' ) {
$action = str_replace( '_restrictions_', '', $suffix );
if ( $action !== 'create' ) {
// To apply other restrictions, the title has to exist
$page->doEditContent(
new WikitextContent( 'AbuseFilter test for title variables' ),
'Testing page for AbuseFilter',
EDIT_NEW,
false,
$user
);
}
$cascade = false;
$page->doUpdateRestrictions(
[ $action => true ],
[ $action => 'infinity' ],
$cascade,
'Testing restrictions for AbuseFilter',
$user
);
}
$success = true;
switch ( $suffix ) {
case '_id':
$result = $title->getArticleID();
break;
case '_namespace':
$result = $title->getNamespace();
break;
case '_title':
$result = $title->getText();
break;
case '_prefixedtitle':
$result = $title->getPrefixedText();
break;
case '_restrictions_create':
case '_restrictions_edit':
case '_restrictions_move':
case '_restrictions_upload':
$type = str_replace( '_restrictions_', '', $suffix );
$restrictions = $title->getRestrictions( $type );
$preliminarCheck = !( $options === 'restricted' xor count( $restrictions ) );
if ( $preliminarCheck ) {
$result = $restrictions;
} else {
$success = false;
$result = false;
}
break;
case '_recent_contributors':
// Create the page and make a couple of edits from different users
$page->doEditContent(
new WikitextContent( 'AbuseFilter test for title variables' ),
'Testing page for AbuseFilter',
EDIT_NEW,
false,
$user
);
$mockContributors = [ 'X>Alice', 'X>Bob', 'X>Charlie' ];
foreach ( $mockContributors as $contributor ) {
$page->doEditContent(
new WikitextContent( "AbuseFilter test, page revision by $contributor" ),
'Testing page for AbuseFilter',
EDIT_UPDATE,
false,
User::newFromName( $contributor, false )
);
}
$contributors = array_reverse( $mockContributors );
array_push( $contributors, $user->getName() );
$result = $contributors;
break;
case '_first_contributor':
// Create the page and make a couple of edits from different users
$page->doEditContent(
new WikitextContent( 'AbuseFilter test for title variables' ),
'Testing page for AbuseFilter',
EDIT_NEW,
false,
$user
);
$mockContributors = [ 'X>Alice', 'X>Bob', 'X>Charlie' ];
foreach ( $mockContributors as $contributor ) {
$page->doEditContent(
new WikitextContent( "AbuseFilter test, page revision by $contributor" ),
'Testing page for AbuseFilter',
EDIT_UPDATE,
false,
User::newFromName( $contributor, false )
);
}
$result = $user->getName();
break;
default:
$success = false;
$result = null;
}
return [ $result, $success ];
}
/**
* Check that the generated title-related variables are correct
*
* @param string $prefix The prefix of the variables we're currently testing
* @param string $suffix The suffix of the variables we're currently testing
* @param string|null $options Whether we want to execute the test with specific options
* Right now, this can only be 'restricted' for restrictions variables; in this case,
* the tested title will have the requested restriction.
* @covers AbuseFilter::generateTitleVars
* @dataProvider provideTitleVars
*/
public function testGenerateTitleVars( $prefix, $suffix, $options = null ) {
$varName = $prefix . $suffix;
$titleNamespace = 0;
$titleText = 'AbuseFilter test';
if ( $options === 'restricted' ) {
// Test on a different page
$titleText = 'AbuseFilter restrictions test';
if ( str_replace( '_restrictions_', '', $suffix ) === 'upload' ) {
// Only files can have upload restrictions
$titleNamespace = 6;
}
}
$title = Title::makeTitle( $titleNamespace, $titleText );
list( $computed, $success ) = $this->computeExpectedTitleVariable( $title, $suffix, $options );
if ( !$success ) {
if ( $computed === null ) {
$this->fail( "Given unknown title-related variable $varName." );
} else {
$this->fail( "AbuseFilter variable $varName is computed wrongly." );
}
}
$variableHolder = AbuseFilter::generateTitleVars( $title, $prefix );
$actual = $variableHolder->getVar( $varName )->toNative();
$this->assertSame( $computed, $actual );
}
/**
* Data provider for testGenerateUserVars
* @return Generator|array
*/
public function provideTitleVars() {
$prefixes = [ 'page', 'moved_from', 'moved_to' ];
$suffixes = [
'_id',
'_namespace',
'_title',
'_prefixedtitle',
'_restrictions_create',
'_restrictions_edit',
'_restrictions_move',
'_restrictions_upload',
'_first_contributor',
'_recent_contributors'
];
foreach ( $prefixes as $prefix ) {
foreach ( $suffixes as $suffix ) {
yield $prefix . $suffix => [ $prefix, $suffix ];
if ( strpos( $suffix, 'restrictions' ) !== false ) {
// Add a case where the page has the restriction
yield $prefix . $suffix . ', restricted' => [ $prefix, $suffix, 'restricted' ];
}
}
}
}
/**
* Check that _age variables are correct. They need a separate function to take into
* account the difference between timestamps due to test execution time
*
* @param string $prefix Prefix of the variable to test
* @covers AbuseFilter::generateTitleVars
* @dataProvider provideAgeVars
*/
public function testAgeVars( $prefix ) {
$varName = $prefix . '_age';
MWTimestamp::setFakeTime( self::FAKE_TIME );
$title = Title::newFromText( 'AbuseFilter test' );
$page = WikiPage::factory( $title );
$page->doEditContent(
new WikitextContent( 'AbuseFilter _age variables test' ),
'Testing page for AbuseFilter',
EDIT_NEW,
false,
$this->getTestUser()->getUser()
);
$expected = 123;
MWTimestamp::setFakeTime( self::FAKE_TIME + $expected );
$variableHolder = AbuseFilter::generateTitleVars( $title, $prefix );
$actual = $variableHolder->getVar( $varName )->toNative();
$this->assertEquals( $expected, $actual );
}
/**
* Data provider for testAgeVars
* @return Generator|array
*/
public function provideAgeVars() {
$prefixes = [ 'page', 'moved_from', 'moved_to' ];
foreach ( $prefixes as $prefix ) {
yield "{$prefix}_age" => [ $prefix ];
}
}
/**
* @covers AbuseFilter::bufferTagsToSetByAction
*/
public function testTagsToSetWillNotContainDuplicates() {
AbuseFilter::$tagsToSet = [];
$iterations = 3;
$actionID = wfRandomString( 30 );
while ( $iterations-- ) {
AbuseFilter::bufferTagsToSetByAction( [ $actionID => [ 'uniqueTag' ] ] );
$this->assertSame( [ 'uniqueTag' ], reset( AbuseFilter::$tagsToSet ) );
}
}
/**
* Check that version comparing works well
*
* @param array $firstVersion [ stdClass, array ]
* @param array $secondVersion [ stdClass, array ]
* @param array $expected The differences
* @covers AbuseFilter::compareVersions
* @dataProvider provideVersions
*/
public function testCompareVersions( $firstVersion, $secondVersion, $expected ) {
$differences = AbuseFilter::compareVersions( $firstVersion, $secondVersion );
$this->assertSame(
$expected,
$differences,
'AbuseFilter::compareVersions did not output the expected result.'
);
}
/**
* Data provider for testCompareVersions
* @return array
*/
public function provideVersions() {
return [
[
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'disallow' => []
]
],
[
(object)[
'af_public_comments' => 'OtherComments',
'af_pattern' => '/*Other pattern*/',
'af_comments' => 'Other comments',
'af_deleted' => 1,
'af_enabled' => 0,
'af_hidden' => 1,
'af_global' => 1,
'af_group' => 'flow'
],
[
'disallow' => []
]
],
[
'af_public_comments',
'af_pattern',
'af_comments',
'af_deleted',
'af_enabled',
'af_hidden',
'af_global',
'af_group',
]
],
[
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'disallow' => []
]
],
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'disallow' => []
]
],
[]
],
[
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'disallow' => []
]
],
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'degroup' => []
]
],
[ 'actions' ]
],
[
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'disallow' => []
]
],
[
(object)[
'af_public_comments' => 'OtherComments',
'af_pattern' => '/*Other pattern*/',
'af_comments' => 'Other comments',
'af_deleted' => 1,
'af_enabled' => 0,
'af_hidden' => 1,
'af_global' => 1,
'af_group' => 'flow'
],
[
'blockautopromote' => []
]
],
[
'af_public_comments',
'af_pattern',
'af_comments',
'af_deleted',
'af_enabled',
'af_hidden',
'af_global',
'af_group',
'actions'
]
],
[
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'disallow' => []
]
],
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'warn' => [
'abusefilter-warning'
]
]
],
[ 'actions' ]
],
[
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'warn' => [
'abusefilter-warning'
]
]
],
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'disallow' => []
]
],
[ 'actions' ]
],
[
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'warn' => [
'abusefilter-warning'
]
]
],
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'warn' => [
'abusefilter-my-best-warning'
],
'degroup' => []
]
],
[ 'actions' ]
],
[
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'warn' => [
'abusefilter-warning'
]
]
],
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Other Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 1,
'af_global' => 0,
'af_group' => 'flow'
],
[
'warn' => [
'abusefilter-my-best-warning'
]
]
],
[
'af_pattern',
'af_hidden',
'af_group',
'actions'
]
],
[
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'default'
],
[
'warn' => [
'abusefilter-beautiful-warning'
]
]
],
[
(object)[
'af_public_comments' => 'Comments',
'af_pattern' => '/*Pattern*/',
'af_comments' => 'Comments',
'af_deleted' => 0,
'af_enabled' => 1,
'af_hidden' => 0,
'af_global' => 0,
'af_group' => 'flow'
],
[
'warn' => [
'abusefilter-my-best-warning'
]
]
],
[
'af_group',
'actions'
]
],
];
}
/**
* Check that row translating from abuse_filter_history to abuse_filter is working fine
*
* @param stdClass $row The row to translate
* @param array $expected The expected result
* @covers AbuseFilter::translateFromHistory
* @dataProvider provideHistoryRows
*/
public function testTranslateFromHistory( $row, $expected ) {
$actual = AbuseFilter::translateFromHistory( $row );
$this->assertEquals(
$expected,
$actual,
'AbuseFilter::translateFromHistory produced a wrong output.'
);
}
/**
* Data provider for testTranslateFromHistory
* @return array
*/
public function provideHistoryRows() {
return [
[
(object)[
'afh_filter' => 1,
'afh_user' => 0,
'afh_user_text' => 'FilteredUser',
'afh_timestamp' => '20180706142932',
'afh_pattern' => '/*Pattern*/',
'afh_comments' => 'Comments',
'afh_flags' => 'enabled,hidden',
'afh_public_comments' => 'Description',
'afh_actions' => serialize( [
'degroup' => [],
'disallow' => []
] ),
'afh_deleted' => 0,
'afh_changed_fields' => 'actions',
'afh_group' => 'default'
],
[
(object)[
'af_pattern' => '/*Pattern*/',
'af_user' => 0,
'af_user_text' => 'FilteredUser',
'af_timestamp' => '20180706142932',
'af_comments' => 'Comments',
'af_public_comments' => 'Description',
'af_deleted' => 0,
'af_id' => 1,
'af_group' => 'default',
'af_hidden' => 1,
'af_enabled' => 1
],
[
'degroup' => [],
'disallow' => []
]
]
],
[
(object)[
'afh_filter' => 5,
'afh_user' => 0,
'afh_user_text' => 'FilteredUser',
'afh_timestamp' => '20180706145516',
'afh_pattern' => '1 === 1',
'afh_comments' => '',
'afh_flags' => '',
'afh_public_comments' => 'Our best filter',
'afh_actions' => serialize( [
'warn' => [
'abusefilter-warning',
''
],
'disallow' => [],
] ),
'afh_deleted' => 0,
'afh_changed_fields' => 'af_pattern,af_comments,af_enabled,actions',
'afh_group' => 'flow'
],
[
(object)[
'af_pattern' => '1 === 1',
'af_user' => 0,
'af_user_text' => 'FilteredUser',
'af_timestamp' => '20180706145516',
'af_comments' => '',
'af_public_comments' => 'Our best filter',
'af_deleted' => 0,
'af_id' => 5,
'af_group' => 'flow',
'af_hidden' => 0,
'af_enabled' => 0
],
[
'warn' => [
'abusefilter-warning',
''
],
'disallow' => []
]
]
],
[
(object)[
'afh_filter' => 7,
'afh_user' => 1,
'afh_user_text' => 'AnotherUser',
'afh_timestamp' => '20160511185604',
'afh_pattern' => 'added_lines irlike "lol" & summary == "ggwp"',
'afh_comments' => 'Show vandals no mercy, for you shall receive none.',
'afh_flags' => 'enabled,hidden',
'afh_public_comments' => 'Whatever',
'afh_actions' => serialize( [
'warn' => [
'abusefilter-warning',
''
],
'disallow' => [],
'block' => [
'blocktalk',
'8 hours',
'infinity'
]
] ),
'afh_deleted' => 0,
'afh_changed_fields' => 'af_pattern,af_comments,af_enabled,af_public_comments,actions',
'afh_group' => 'default'
],
[
(object)[
'af_pattern' => 'added_lines irlike "lol" & summary == "ggwp"',
'af_user' => 1,
'af_user_text' => 'AnotherUser',
'af_timestamp' => '20160511185604',
'af_comments' => 'Show vandals no mercy, for you shall receive none.',
'af_public_comments' => 'Whatever',
'af_deleted' => 0,
'af_id' => 7,
'af_group' => 'default',
'af_hidden' => 1,
'af_enabled' => 1
],
[
'warn' => [
'abusefilter-warning',
''
],
'disallow' => [],
'block' => [
'blocktalk',
'8 hours',
'infinity'
]
]
]
],
[
(object)[
'afh_filter' => 131,
'afh_user' => 15,
'afh_user_text' => 'YetAnotherUser',
'afh_timestamp' => '20180511185604',
'afh_pattern' => 'user_name == "Thatguy"',
'afh_comments' => '',
'afh_flags' => 'hidden,deleted',
'afh_public_comments' => 'No comment.',
'afh_actions' => serialize( [
'throttle' => [
'131',
'3,60',
'user'
],
'tag' => [
'mytag',
'yourtag'
]
] ),
'afh_deleted' => 1,
'afh_changed_fields' => 'af_pattern',
'afh_group' => 'default'
],
[
(object)[
'af_pattern' => 'user_name == "Thatguy"',
'af_user' => 15,
'af_user_text' => 'YetAnotherUser',
'af_timestamp' => '20180511185604',
'af_comments' => '',
'af_public_comments' => 'No comment.',
'af_deleted' => 1,
'af_id' => 131,
'af_group' => 'default',
'af_hidden' => 1,
'af_enabled' => 0
],
[
'throttle' => [
'131',
'3,60',
'user'
],
'tag' => [
'mytag',
'yourtag'
]
]
]
]
];
}
/**
* Given the name of a variable, naturally sets it to a determined amount
*
* @param string $old The old wikitext of the page
* @param string $new The new wikitext of the page
* @param AbuseFilterVariableHolder &$vars The object to use to store/retrieve variables
* @param WikiPage $page The page to use
* @return array
*/
private function computeExpectedEditVariable(
$old,
$new,
AbuseFilterVariableHolder &$vars,
WikiPage $page
) {
$popts = ParserOptions::newCanonical();
// Order matters here. Some variables rely on other ones.
$variables = [
'new_html',
'new_pst',
'new_text',
'edit_diff',
'edit_diff_pst',
'new_size',
'old_size',
'edit_delta',
'added_lines',
'removed_lines',
'added_lines_pst',
'all_links',
'old_links',
'added_links',
'removed_links'
];
// Set required variables
$vars->setVar( 'old_wikitext', $old );
$vars->setVar( 'new_wikitext', $new );
$vars->setVar( 'summary', 'Testing page for AbuseFilter' );
$computedVariables = [];
foreach ( $variables as $var ) {
$success = true;
// Reset text variables since some operations are changing them.
$oldText = $old;
$newText = $new;
switch ( $var ) {
case 'edit_diff_pst':
$newText = $vars->getVar( 'new_pst' )->toString();
// Intentional fall-through
case 'edit_diff':
$diffs = new Diff( explode( "\n", $oldText ), explode( "\n", $newText ) );
$format = new UnifiedDiffFormatter();
$result = $format->format( $diffs );
break;
case 'new_size':
$result = strlen( $newText );
break;
case 'old_size':
$result = strlen( $oldText );
break;
case 'edit_delta':
$result = strlen( $newText ) - strlen( $oldText );
break;
case 'added_lines_pst':
case 'added_lines':
case 'removed_lines':
$diffVariable = $var === 'added_lines_pst' ? 'edit_diff_pst' : 'edit_diff';
$diff = $vars->getVar( $diffVariable )->toString();
$line_prefix = $var === 'removed_lines' ? '-' : '+';
$diff_lines = explode( "\n", $diff );
$interest_lines = [];
foreach ( $diff_lines as $line ) {
if ( substr( $line, 0, 1 ) === $line_prefix ) {
$interest_lines[] = substr( $line, strlen( $line_prefix ) );
}
}
$result = $interest_lines;
break;
case 'new_text':
$newHtml = $vars->getVar( 'new_html' )->toString();
$result = StringUtils::delimiterReplace( '<', '>', '', $newHtml );
break;
case 'new_pst':
case 'new_html':
$content = ContentHandler::makeContent( $newText, $page->getTitle() );
$editInfo = $page->prepareContentForEdit( $content );
if ( $var === 'new_pst' ) {
$result = $editInfo->pstContent->serialize( $editInfo->format );
} else {
$result = $editInfo->output->getText();
}
break;
case 'all_links':
$content = ContentHandler::makeContent( $newText, $page->getTitle() );
$editInfo = $page->prepareContentForEdit( $content );
$result = array_keys( $editInfo->output->getExternalLinks() );
break;
case 'old_links':
$popts->setTidy( true );
$parser = MediaWikiServices::getInstance()->getParser();
$edit = $parser->parse( $oldText, $page->getTitle(), $popts );
$result = array_keys( $edit->getExternalLinks() );
break;
case 'added_links':
case 'removed_links':
$oldLinks = $vars->getVar( 'old_links' )->toString();
$newLinks = $vars->getVar( 'all_links' )->toString();
$oldLinks = explode( "\n", $oldLinks );
$newLinks = explode( "\n", $newLinks );
if ( $var === 'added_links' ) {
$result = array_diff( $newLinks, $oldLinks );
} else {
$result = array_diff( $oldLinks, $newLinks );
}
break;
default:
$success = false;
$result = null;
}
$computedVariables[$var] = [ $result, $success ];
$vars->setVar( $var, $result );
}
return $computedVariables;
}
/**
* Check that the generated variables for edits are correct
*
* @param string $oldText The old wikitext of the page
* @param string $newText The new wikitext of the page
* @covers AbuseFilter::getEditVars
* @dataProvider provideEditVars
*/
public function testGetEditVars( $oldText, $newText ) {
$title = Title::makeTitle( 0, 'AbuseFilter test' );
$page = WikiPage::factory( $title );
$user = $this->getTestUser()->getUser();
$page->doEditContent(
new WikitextContent( $oldText ),
'Creating the test page',
EDIT_NEW,
false,
$user
);
$page->doEditContent(
new WikitextContent( $newText ),
'Testing page for AbuseFilter',
EDIT_UPDATE,
false,
$user
);
$vars = new AbuseFilterVariableHolder();
$computeResult = $this->computeExpectedEditVariable( $oldText, $newText, $vars, $page );
$computedVariables = [];
foreach ( $computeResult as $varName => $computed ) {
if ( !$computed[1] ) {
$this->fail( "Given unknown edit variable $varName." );
}
$computedVariables[$varName] = $computed[0];
}
$vars->addHolders( AbuseFilter::getEditVars( $title, $page ) );
$actualVariables = [];
foreach ( array_keys( $vars->getVars() ) as $varName ) {
$actualVariables[$varName] = $vars->getVar( $varName )->toNative();
}
$differences = [];
foreach ( $computedVariables as $var => $computed ) {
if ( !isset( $actualVariables[$var] ) ) {
$this->fail( "AbuseFilter::getEditVars didn't set the $var variable." );
} elseif ( $computed !== $actualVariables[$var] ) {
$differences[] = $var;
}
}
$this->assertEmpty(
$differences,
'The following AbuseFilter variables are computed wrongly: ' . implode( ', ', $differences )
);
}
/**
* Data provider for testGetEditVars
* @return array
*/
public function provideEditVars() {
return [
[
'[https://www.mediawiki.it/wiki/Extension:AbuseFilter AbuseFilter] test page',
'Adding something to compute edit variables. Here are some diacritics to make sure ' .
"the test behaves well with unicode: Là giù cascherò io altresì.\n名探偵コナン.\n" .
"[[Help:Pre Save Transform|]] should make the difference as well.\n" .
'Instead, [https://www.mediawiki.it this] is an external link.'
],
[
'Adding something to compute edit variables. Here are some diacritics to make sure ' .
"the test behaves well with unicode: Là giù cascherò io altresì.\n名探偵コナン.\n" .
"[[Help:Pre Save Transform|]] should make the difference as well.\n" .
'Instead, [https://www.mediawiki.it this] is an external link.',
'[https://www.mediawiki.it/wiki/Extension:AbuseFilter AbuseFilter] test page'
],
[
"A '''foo''' is not a ''bar''.",
"Actually, according to [http://en.wikipedia.org ''Wikipedia''], a '''''foo''''' " .
'is <small>more or less</small> the same as a <b>bar</b>, except that a foo is ' .
'usually provided together with a [[cellar door|]] to make it work<ref>Yes, really</ref>.'
],
[
'This edit will be pretty smll',
'This edit will be pretty small'
]
];
}
/**
* @param RevisionRecord $rev The revision being converted
* @param string $userGroup The group to assign to the test user
* @param string $expected The expected textual representation of the Revision
* @covers AbuseFilter::revisionToString
* @dataProvider provideRevisionToString
*/
public function testRevisionToString( $rev, $userGroup, $expected ) {
if ( $userGroup === 'user' ) {
$user = $this->getTestUser()->getUser();
} else {
$user = $this->getTestUser( $userGroup )->getUser();
}
$actual = AbuseFilter::revisionToString( $rev, $user );
$this->assertSame( $expected, $actual );
}
/**
* Data provider for testRevisionToString
*
* @return Generator|array
*/
public function provideRevisionToString() {
yield 'no revision' => [ null, RevisionRecord::FOR_PUBLIC, '' ];
$title = Title::newFromText( __METHOD__ );
$revRec = new MutableRevisionRecord( $title );
$revRec->setContent( SlotRecord::MAIN, new TextContent( 'Main slot text.' ) );
yield 'Revision instance' => [
new Revision( $revRec ),
'user',
'Main slot text.'
];
yield 'RevisionRecord instance' => [
$revRec,
'user',
'Main slot text.'
];
$revRec = new MutableRevisionRecord( $title );
$revRec->setContent( SlotRecord::MAIN, new TextContent( 'Main slot text.' ) );
$revRec->setContent( 'aux', new TextContent( 'Aux slot content.' ) );
yield 'Multi-slot' => [
$revRec,
'user',
"Main slot text.\n\nAux slot content."
];
$revRec = new MutableRevisionRecord( $title );
$revRec->setContent( SlotRecord::MAIN, new TextContent( 'Main slot text.' ) );
$revRec->setVisibility( RevisionRecord::DELETED_TEXT );
yield 'Suppressed revision, unprivileged' => [
$revRec,
'user',
''
];
yield 'Suppressed revision, privileged' => [
$revRec,
'sysop',
'Main slot text.'
];
}
/**
* Test storing and loading the var dump. See also AbuseFilterConsequencesTest::testVarDump
*
* @param array $variables Map of [ name => value ] to build an AbuseFilterVariableHolder with
* @covers AbuseFilter::storeVarDump
* @covers AbuseFilter::loadVarDump
* @covers AbuseFilterVariableHolder::dumpAllVars
* @dataProvider provideVariables
*/
public function testVarDump( $variables ) {
global $wgCompressRevisions, $wgDefaultExternalStore;
$holder = new AbuseFilterVariableHolder();
foreach ( $variables as $name => $value ) {
$holder->setVar( $name, $value );
}
if ( array_intersect_key( AbuseFilter::getDeprecatedVariables(), $variables ) ) {
$holder->mVarsVersion = 1;
}
$insertID = AbuseFilter::storeVarDump( $holder );
$dbw = wfGetDB( DB_MASTER );
$flags = $dbw->selectField(
'text',
'old_flags',
'',
__METHOD__,
[ 'ORDER BY' => 'old_id DESC' ]
);
$this->assertNotFalse( $flags, 'The var dump has not been saved.' );
$flags = explode( ',', $flags );
$expectedFlags = [ 'nativeDataArray' ];
if ( $wgCompressRevisions ) {
$expectedFlags[] = 'gzip';
}
if ( $wgDefaultExternalStore ) {
$expectedFlags[] = 'external';
}
$this->assertEquals( $expectedFlags, $flags, 'The var dump does not have the correct flags' );
$dump = AbuseFilter::loadVarDump( "stored-text:$insertID" );
$this->assertEquals( $holder, $dump, 'The var dump is not saved correctly' );
}
/**
* Data provider for testVarDump
*
* @return array
*/
public function provideVariables() {
return [
'Only basic variables' => [
[
'old_wikitext' => 'Old text',
'new_wikitext' => 'New text'
]
],
[
[
'old_wikitext' => 'Old text',
'new_wikitext' => 'New text',
'user_editcount' => 15,
'added_lines' => [ 'Foo', '', 'Bar' ]
]
],
'Deprecated variables' => [
[
'old_wikitext' => 'Old text',
'new_wikitext' => 'New text',
'article_articleid' => 11745,
'article_first_contributor' => 'Good guy'
]
],
[
[
'old_wikitext' => 'Old text',
'new_wikitext' => 'New text',
'page_title' => 'Some title',
'summary' => 'Fooooo'
]
],
[
[
'old_wikitext' => 'Old text',
'new_wikitext' => 'New text',
'all_links' => [ 'https://en.wikipedia.org' ],
'moved_to_id' => 156,
'moved_to_prefixedtitle' => 'MediaWiki:Foobar.js',
'new_content_model' => CONTENT_MODEL_JAVASCRIPT
]
],
[
[
'old_wikitext' => 'Old text',
'new_wikitext' => 'New text',
'timestamp' => 1546000295,
'action' => 'delete',
'page_namespace' => 114
]
],
[
[
'old_wikitext' => 'Old text',
'new_wikitext' => 'New text',
'new_html' => 'Foo <small>bar</small> <s>lol</s>.',
'new_pst' => '[[Link|link]] test {{blah}}.'
]
],
'Disabled vars' => [
[
'old_wikitext' => 'Old text',
'new_wikitext' => 'New text',
'old_html' => 'Foo <small>bar</small> <s>lol</s>.',
'old_text' => 'Foobar'
]
]
];
}
/**
* @param string $name The name of a filter
* @param array|null $expected If array, the expected result like [ id, isGlobal ].
* If null it means that we're expecting an exception.
* @covers AbuseFilter::splitGlobalName
* @dataProvider provideGlobalNames
*/
public function testSplitGlobalName( $name, $expected ) {
if ( $expected !== null ) {
$actual = AbuseFilter::splitGlobalName( $name );
$this->assertSame( $expected, $actual );
} else {
$this->expectException( InvalidArgumentException::class );
AbuseFilter::splitGlobalName( $name );
}
}
/**
* Data provider for testSplitGlobalName
*
* @return array
*/
public function provideGlobalNames() {
return [
[ '15', [ 15, false ] ],
[ 15, [ 15, false ] ],
[ 'global-1', [ 1, true ] ],
[ 'new', null ],
[ false, null ],
[ 'global-15-global', null ],
[ 0, [ 0, false ] ],
[ 'global-', null ],
[ 'global-lol', null ],
[ 'global-17.2', null ],
[ '17,2', null ],
];
}
}
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