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<?php
namespace MediaWiki\Extension\AbuseFilter;
use MediaWiki\Extension\AbuseFilter\Hooks\AbuseFilterHookRunner;
/**
* This service can be used to manage the list of keywords recognized by the Parser
*/
class KeywordsManager {
public const SERVICE_NAME = 'AbuseFilterKeywordsManager';
/**
* Operators and functions that can be used in AbuseFilter code.
* They are shown in the dropdown in the filter editor.
* Keys of translatable messages with their descriptions are
* based on keys of this array.
* When editing this list or the messages, keep the order
* consistent in both lists.
*
* @var array
*/
private const BUILDER_VALUES = [
'op-arithmetic' => [
// Generates abusefilter-edit-builder-op-arithmetic-addition
'+' => 'addition',
// Generates abusefilter-edit-builder-op-arithmetic-subtraction
'-' => 'subtraction',
// Generates abusefilter-edit-builder-op-arithmetic-multiplication
'*' => 'multiplication',
// Generates abusefilter-edit-builder-op-arithmetic-divide
'/' => 'divide',
// Generates abusefilter-edit-builder-op-arithmetic-modulo
'%' => 'modulo',
// Generates abusefilter-edit-builder-op-arithmetic-pow
'**' => 'pow'
],
'op-comparison' => [
// Generates abusefilter-edit-builder-op-comparison-equal
'==' => 'equal',
// Generates abusefilter-edit-builder-op-comparison-equal-strict
'===' => 'equal-strict',
// Generates abusefilter-edit-builder-op-comparison-notequal
'!=' => 'notequal',
// Generates abusefilter-edit-builder-op-comparison-notequal-strict
'!==' => 'notequal-strict',
// Generates abusefilter-edit-builder-op-comparison-lt
'<' => 'lt',
// Generates abusefilter-edit-builder-op-comparison-gt
'>' => 'gt',
// Generates abusefilter-edit-builder-op-comparison-lte
'<=' => 'lte',
// Generates abusefilter-edit-builder-op-comparison-gte
'>=' => 'gte'
],
'op-bool' => [
// Generates abusefilter-edit-builder-op-bool-not
'!' => 'not',
// Generates abusefilter-edit-builder-op-bool-and
'&' => 'and',
// Generates abusefilter-edit-builder-op-bool-or
'|' => 'or',
// Generates abusefilter-edit-builder-op-bool-xor
'^' => 'xor'
],
'misc' => [
// Generates abusefilter-edit-builder-misc-in
'in' => 'in',
// Generates abusefilter-edit-builder-misc-contains
'contains' => 'contains',
// Generates abusefilter-edit-builder-misc-like
'like' => 'like',
// Generates abusefilter-edit-builder-misc-stringlit
'""' => 'stringlit',
// Generates abusefilter-edit-builder-misc-rlike
'rlike' => 'rlike',
// Generates abusefilter-edit-builder-misc-irlike
'irlike' => 'irlike',
// Generates abusefilter-edit-builder-misc-tern
'cond ? iftrue : iffalse' => 'tern',
// Generates abusefilter-edit-builder-misc-cond
'if cond then iftrue else iffalse end' => 'cond',
// Generates abusefilter-edit-builder-misc-cond-short
'if cond then iftrue end' => 'cond-short',
],
'funcs' => [
// Generates abusefilter-edit-builder-funcs-length
'length(string)' => 'length',
// Generates abusefilter-edit-builder-funcs-lcase
'lcase(string)' => 'lcase',
// Generates abusefilter-edit-builder-funcs-ucase
'ucase(string)' => 'ucase',
// Generates abusefilter-edit-builder-funcs-ccnorm
'ccnorm(string)' => 'ccnorm',
// Generates abusefilter-edit-builder-funcs-ccnorm-contains-any
'ccnorm_contains_any(haystack,needle1,needle2,..)' => 'ccnorm-contains-any',
// Generates abusefilter-edit-builder-funcs-ccnorm-contains-all
'ccnorm_contains_all(haystack,needle1,needle2,..)' => 'ccnorm-contains-all',
// Generates abusefilter-edit-builder-funcs-rmdoubles
'rmdoubles(string)' => 'rmdoubles',
// Generates abusefilter-edit-builder-funcs-specialratio
'specialratio(string)' => 'specialratio',
// Generates abusefilter-edit-builder-funcs-norm
'norm(string)' => 'norm',
// Generates abusefilter-edit-builder-funcs-count
'count(needle,haystack)' => 'count',
// Generates abusefilter-edit-builder-funcs-rcount
'rcount(needle,haystack)' => 'rcount',
// Generates abusefilter-edit-builder-funcs-get_matches
'get_matches(needle,haystack)' => 'get_matches',
// Generates abusefilter-edit-builder-funcs-rmwhitespace
'rmwhitespace(text)' => 'rmwhitespace',
// Generates abusefilter-edit-builder-funcs-rmspecials
'rmspecials(text)' => 'rmspecials',
// Generates abusefilter-edit-builder-funcs-ip_in_range
'ip_in_range(ip, range)' => 'ip_in_range',
// Generates abusefilter-edit-builder-funcs-ip_in_ranges
'ip_in_ranges(ip, range1, range2, ...)' => 'ip_in_ranges',
// Generates abusefilter-edit-builder-funcs-contains-any
'contains_any(haystack,needle1,needle2,...)' => 'contains-any',
// Generates abusefilter-edit-builder-funcs-contains-all
'contains_all(haystack,needle1,needle2,...)' => 'contains-all',
// Generates abusefilter-edit-builder-funcs-equals-to-any
'equals_to_any(haystack,needle1,needle2,...)' => 'equals-to-any',
// Generates abusefilter-edit-builder-funcs-substr
'substr(subject, offset, length)' => 'substr',
// Generates abusefilter-edit-builder-funcs-strpos
'strpos(haystack, needle)' => 'strpos',
// Generates abusefilter-edit-builder-funcs-str_replace
'str_replace(subject, search, replace)' => 'str_replace',
// Generates abusefilter-edit-builder-funcs-str_replace_regexp
'str_replace_regexp(subject, search, replace)' => 'str_replace_regexp',
// Generates abusefilter-edit-builder-funcs-rescape
'rescape(string)' => 'rescape',
// Generates abusefilter-edit-builder-funcs-set_var
'set_var(var,value)' => 'set_var',
// Generates abusefilter-edit-builder-funcs-sanitize
'sanitize(string)' => 'sanitize',
],
'vars' => [
// Generates abusefilter-edit-builder-vars-timestamp
'timestamp' => 'timestamp',
// Generates abusefilter-edit-builder-vars-accountname
'accountname' => 'accountname',
// Generates abusefilter-edit-builder-vars-action
'action' => 'action',
// Generates abusefilter-edit-builder-vars-addedlines
'added_lines' => 'addedlines',
// Generates abusefilter-edit-builder-vars-delta
'edit_delta' => 'delta',
// Generates abusefilter-edit-builder-vars-diff
'edit_diff' => 'diff',
// Generates abusefilter-edit-builder-vars-newsize
'new_size' => 'newsize',
// Generates abusefilter-edit-builder-vars-oldsize
'old_size' => 'oldsize',
// Generates abusefilter-edit-builder-vars-new-content-model
'new_content_model' => 'new-content-model',
// Generates abusefilter-edit-builder-vars-old-content-model
'old_content_model' => 'old-content-model',
// Generates abusefilter-edit-builder-vars-removedlines
'removed_lines' => 'removedlines',
// Generates abusefilter-edit-builder-vars-summary
'summary' => 'summary',
// Generates abusefilter-edit-builder-vars-page-id
'page_id' => 'page-id',
// Generates abusefilter-edit-builder-vars-page-ns
'page_namespace' => 'page-ns',
// Generates abusefilter-edit-builder-vars-page-title
'page_title' => 'page-title',
// Generates abusefilter-edit-builder-vars-page-prefixedtitle
'page_prefixedtitle' => 'page-prefixedtitle',
// Generates abusefilter-edit-builder-vars-page-age
'page_age' => 'page-age',
// Generates abusefilter-edit-builder-vars-page-last-edit-age
'page_last_edit_age' => 'page-last-edit-age',
// Generates abusefilter-edit-builder-vars-movedfrom-id
'moved_from_id' => 'movedfrom-id',
// Generates abusefilter-edit-builder-vars-movedfrom-ns
'moved_from_namespace' => 'movedfrom-ns',
// Generates abusefilter-edit-builder-vars-movedfrom-title
'moved_from_title' => 'movedfrom-title',
// Generates abusefilter-edit-builder-vars-movedfrom-prefixedtitle
'moved_from_prefixedtitle' => 'movedfrom-prefixedtitle',
// Generates abusefilter-edit-builder-vars-movedfrom-age
'moved_from_age' => 'movedfrom-age',
// Generates abusefilter-edit-builder-vars-movedfrom-last-edit-age
'moved_from_last_edit_age' => 'movedfrom-last-edit-age',
// Generates abusefilter-edit-builder-vars-movedto-id
'moved_to_id' => 'movedto-id',
// Generates abusefilter-edit-builder-vars-movedto-ns
'moved_to_namespace' => 'movedto-ns',
// Generates abusefilter-edit-builder-vars-movedto-title
'moved_to_title' => 'movedto-title',
// Generates abusefilter-edit-builder-vars-movedto-prefixedtitle
'moved_to_prefixedtitle' => 'movedto-prefixedtitle',
// Generates abusefilter-edit-builder-vars-movedto-age
'moved_to_age' => 'movedto-age',
// Generates abusefilter-edit-builder-vars-movedto-last-edit-age
'moved_to_last_edit_age' => 'movedto-last-edit-age',
// Generates abusefilter-edit-builder-vars-user-editcount
'user_editcount' => 'user-editcount',
// Generates abusefilter-edit-builder-vars-user-age
'user_age' => 'user-age',
// Generates abusefilter-edit-builder-vars-user-unnamed-ip
'user_unnamed_ip' => 'user-unnamed-ip',
// Generates abusefilter-edit-builder-vars-user-name
'user_name' => 'user-name',
// Generates abusefilter-edit-builder-vars-user-type
'user_type' => 'user-type',
// Generates abusefilter-edit-builder-vars-user-groups
'user_groups' => 'user-groups',
// Generates abusefilter-edit-builder-vars-user-rights
'user_rights' => 'user-rights',
// Generates abusefilter-edit-builder-vars-user-blocked
'user_blocked' => 'user-blocked',
// Generates abusefilter-edit-builder-vars-user-emailconfirm
'user_emailconfirm' => 'user-emailconfirm',
// Generates abusefilter-edit-builder-vars-old-wikitext
'old_wikitext' => 'old-wikitext',
// Generates abusefilter-edit-builder-vars-new-wikitext
'new_wikitext' => 'new-wikitext',
// Generates abusefilter-edit-builder-vars-added-links
'added_links' => 'added-links',
// Generates abusefilter-edit-builder-vars-removed-links
'removed_links' => 'removed-links',
// Generates abusefilter-edit-builder-vars-all-links
'all_links' => 'all-links',
// Generates abusefilter-edit-builder-vars-new-pst
'new_pst' => 'new-pst',
// Generates abusefilter-edit-builder-vars-diff-pst
'edit_diff_pst' => 'diff-pst',
// Generates abusefilter-edit-builder-vars-addedlines-pst
'added_lines_pst' => 'addedlines-pst',
// Generates abusefilter-edit-builder-vars-new-text
'new_text' => 'new-text',
// Generates abusefilter-edit-builder-vars-new-html
'new_html' => 'new-html',
// Generates abusefilter-edit-builder-vars-restrictions-edit
'page_restrictions_edit' => 'restrictions-edit',
// Generates abusefilter-edit-builder-vars-restrictions-move
'page_restrictions_move' => 'restrictions-move',
// Generates abusefilter-edit-builder-vars-restrictions-create
'page_restrictions_create' => 'restrictions-create',
// Generates abusefilter-edit-builder-vars-restrictions-upload
'page_restrictions_upload' => 'restrictions-upload',
// Generates abusefilter-edit-builder-vars-recent-contributors
'page_recent_contributors' => 'recent-contributors',
// Generates abusefilter-edit-builder-vars-first-contributor
'page_first_contributor' => 'first-contributor',
// Generates abusefilter-edit-builder-vars-movedfrom-restrictions-edit
'moved_from_restrictions_edit' => 'movedfrom-restrictions-edit',
// Generates abusefilter-edit-builder-vars-movedfrom-restrictions-move
'moved_from_restrictions_move' => 'movedfrom-restrictions-move',
// Generates abusefilter-edit-builder-vars-movedfrom-restrictions-create
'moved_from_restrictions_create' => 'movedfrom-restrictions-create',
// Generates abusefilter-edit-builder-vars-movedfrom-restrictions-upload
'moved_from_restrictions_upload' => 'movedfrom-restrictions-upload',
// Generates abusefilter-edit-builder-vars-movedfrom-recent-contributors
'moved_from_recent_contributors' => 'movedfrom-recent-contributors',
// Generates abusefilter-edit-builder-vars-movedfrom-first-contributor
'moved_from_first_contributor' => 'movedfrom-first-contributor',
// Generates abusefilter-edit-builder-vars-movedto-restrictions-edit
'moved_to_restrictions_edit' => 'movedto-restrictions-edit',
// Generates abusefilter-edit-builder-vars-movedto-restrictions-move
'moved_to_restrictions_move' => 'movedto-restrictions-move',
// Generates abusefilter-edit-builder-vars-movedto-restrictions-create
'moved_to_restrictions_create' => 'movedto-restrictions-create',
// Generates abusefilter-edit-builder-vars-movedto-restrictions-upload
'moved_to_restrictions_upload' => 'movedto-restrictions-upload',
// Generates abusefilter-edit-builder-vars-movedto-recent-contributors
'moved_to_recent_contributors' => 'movedto-recent-contributors',
// Generates abusefilter-edit-builder-vars-movedto-first-contributor
'moved_to_first_contributor' => 'movedto-first-contributor',
// Generates abusefilter-edit-builder-vars-old-links
'old_links' => 'old-links',
// Generates abusefilter-edit-builder-vars-file-sha1
'file_sha1' => 'file-sha1',
// Generates abusefilter-edit-builder-vars-file-size
'file_size' => 'file-size',
// Generates abusefilter-edit-builder-vars-file-mime
'file_mime' => 'file-mime',
// Generates abusefilter-edit-builder-vars-file-mediatype
'file_mediatype' => 'file-mediatype',
// Generates abusefilter-edit-builder-vars-file-width
'file_width' => 'file-width',
// Generates abusefilter-edit-builder-vars-file-height
'file_height' => 'file-height',
// Generates abusefilter-edit-builder-vars-file-bits-per-channel
'file_bits_per_channel' => 'file-bits-per-channel',
// Generates abusefilter-edit-builder-vars-wiki-name
'wiki_name' => 'wiki-name',
// Generates abusefilter-edit-builder-vars-wiki-language
'wiki_language' => 'wiki-language',
],
];
/**
* Old vars which aren't in use anymore.
* The translatable messages that are based
* on them are not shown in the filter editor,
* but may still be shown in the log descriptions of
* filter actions that were taken by filters
* that used them.
*
* @var array
*/
private const DISABLED_VARS = [
// Generates abusefilter-edit-builder-vars-old-text
'old_text' => 'old-text',
// Generates abusefilter-edit-builder-vars-old-html
'old_html' => 'old-html',
// Generates abusefilter-edit-builder-vars-minor-edit
'minor_edit' => 'minor-edit'
];
private const DEPRECATED_VARS = [
'article_text' => 'page_title',
'article_prefixedtext' => 'page_prefixedtitle',
'article_namespace' => 'page_namespace',
'article_articleid' => 'page_id',
'article_restrictions_edit' => 'page_restrictions_edit',
'article_restrictions_move' => 'page_restrictions_move',
'article_restrictions_create' => 'page_restrictions_create',
'article_restrictions_upload' => 'page_restrictions_upload',
'article_recent_contributors' => 'page_recent_contributors',
'article_first_contributor' => 'page_first_contributor',
'moved_from_text' => 'moved_from_title',
'moved_from_prefixedtext' => 'moved_from_prefixedtitle',
'moved_from_articleid' => 'moved_from_id',
'moved_to_text' => 'moved_to_title',
'moved_to_prefixedtext' => 'moved_to_prefixedtitle',
'moved_to_articleid' => 'moved_to_id',
];
/** @var string[][] Final list of builder values */
private $builderValues;
/** @var string[] Final list of deprecated vars */
private $deprecatedVars;
/** @var AbuseFilterHookRunner */
private $hookRunner;
/**
* @param AbuseFilterHookRunner $hookRunner
*/
public function __construct( AbuseFilterHookRunner $hookRunner ) {
$this->hookRunner = $hookRunner;
}
/**
* @return array
*/
public function getDisabledVariables(): array {
return self::DISABLED_VARS;
}
/**
* @return array
*/
public function getDeprecatedVariables(): array {
if ( $this->deprecatedVars === null ) {
$this->deprecatedVars = self::DEPRECATED_VARS;
$this->hookRunner->onAbuseFilter_deprecatedVariables( $this->deprecatedVars );
}
return $this->deprecatedVars;
}
/**
* @return array
*/
public function getBuilderValues(): array {
if ( $this->builderValues === null ) {
$this->builderValues = self::BUILDER_VALUES;
$this->hookRunner->onAbuseFilter_builder( $this->builderValues );
}
return $this->builderValues;
}
/**
* @param string $name
* @return bool
*/
public function isVarDisabled( string $name ): bool {
return array_key_exists( $name, self::DISABLED_VARS );
}
/**
* @param string $name
* @return bool
*/
public function isVarDeprecated( string $name ): bool {
return array_key_exists( $name, $this->getDeprecatedVariables() );
}
/**
* @param string $name
* @return bool
*/
public function isVarInUse( string $name ): bool {
return array_key_exists( $name, $this->getVarsMappings() );
}
/**
* Check whether the given name corresponds to a known variable.
* @param string $name
* @return bool
*/
public function varExists( string $name ): bool {
return $this->isVarInUse( $name ) ||
$this->isVarDisabled( $name ) ||
$this->isVarDeprecated( $name );
}
/**
* Get the message for a builtin variable; takes deprecated variables into account.
* Returns null for non-builtin variables.
*
* @param string $var
* @return string|null
*/
public function getMessageKeyForVar( string $var ): ?string {
if ( !$this->varExists( $var ) ) {
return null;
}
if ( $this->isVarDeprecated( $var ) ) {
$var = $this->getDeprecatedVariables()[$var];
}
$key = self::DISABLED_VARS[$var] ??
$this->getVarsMappings()[$var];
return "abusefilter-edit-builder-vars-$key";
}
/**
* @return array
*/
public function getVarsMappings(): array {
return $this->getBuilderValues()['vars'];
}
/**
* Get a list of core variables, i.e. variables defined in AbuseFilter (ignores hooks).
* You usually want to use getVarsMappings(), not this one.
* @return string[]
*/
public function getCoreVariables(): array {
return array_keys( self::BUILDER_VALUES['vars'] );
}
}