Extension:AbuseFilter/id

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Manual ekstensi MediaWiki
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AbuseFilter
Status rilis: stabil
AbuseFilter-Management.png
Implementasi Aktivitas pengguna , Halaman istimewa , API
Deskripsi Allows specific behavior-based restrictions to be placed on wiki activity
Perancang awal
Kebijakan kompatibilitas Snapshots releases along with MediaWiki. Master is not backward compatible.
MediaWiki 1.33+
PHP 5.4+ direkomendasikan
Perubahan basis data Ya
Tabel abuse_filter
abuse_filter_action
abuse_filter_history
abuse_filter_log
Lisensi Lisensi Publik Umum GNU 2.0 atau lebih baru
Unduh
  • $wgAbuseFilterConditionLimit
  • $wgAbuseFilterRangeBlockSize
  • $wgAbuseFilterAnonBlockDuration
  • $wgAbuseFilterLogIPMaxAge
  • $wgAbuseFilterCentralDB
  • $wgAbuseFilterDefaultWarningMessage
  • $wgAbuseFilterEmergencyDisableAge
  • $wgAbuseFilterProfileActionsCap
  • $wgAbuseFilterActionRestrictions
  • $wgAbuseFilterActions
  • $wgAbuseFilterAflFilterMigrationStage
  • $wgAbuseFilterLogIP
  • $wgAbuseFilterPrivateDetailsForceReason
  • $wgAbuseFilterEmergencyDisableCount
  • $wgAbuseFilterLogPrivateDetailsAccess
  • $wgAbuseFilterSlowFilterRuntimeLimit
  • $wgAbuseFilterEmergencyDisableThreshold
  • $wgAbuseFilterLocallyDisabledGlobalActions
  • $wgAbuseFilterBlockDuration
  • $wgAbuseFilterDefaultDisallowMessage
  • $wgAbuseFilterValidGroups
  • $wgAbuseFilterNotificationsPrivate
  • $wgAbuseFilterBlockAutopromoteDuration
  • $wgAbuseFilterIsCentral
  • $wgAbuseFilterNotifications
  • abusefilter-modify
  • abusefilter-log-detail
  • abusefilter-view
  • abusefilter-log
  • abusefilter-privatedetails
  • abusefilter-privatedetails-log
  • abusefilter-modify-restricted
  • abusefilter-revert
  • abusefilter-view-private
  • abusefilter-log-private
  • abusefilter-hidden-log
  • abusefilter-hide-log
  • abusefilter-modify-global
Terjemahkan ekstensi AbuseFilter jika tersedia di translatewiki.net

Periksa matriks penggunaan dan versi.

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Coolest Tool Award 2020 square logo.svg

AbuseFilter

2020 Coolest Tool
Award Winner

in the category
Quality


The AbuseFilter extension allows privileged users to set specific actions to be taken when actions by users, such as edits, match certain criteria.

For example, a filter could be created to prevent anonymous users from adding external links, or to block a user who removes more than 2000 characters.

Instalasi

  • Unduh dan letakkan berkas-berkasnya di dalam sebuah direktori yang bernama AbuseFilter di folder extensions/ Anda.
  • Hanya ketika memasang dari git, jalankan Composer untuk memasang dependensi PHP, dengan menjalankan composer install --no-dev di direktori ekstensi. (Lihat task T173141 untuk komplikasi yang mungkin terjadi.)
  • Tambahkan baris berikut di bawah LocalSettings.php Anda:
    wfLoadExtension( 'AbuseFilter' );
    
  • Jalankan skrip pembaruan yang akan membuat tabel basis data yang diperlukan ekstensi ini secara otomatis.
  • Configure as required.
  •   Selesai – Telusuri ke Special:Version di wiki Anda untuk memastikan ekstensinya berhasil dipasang.

Bagi pengguna yang menjalankan MediaWiki 1.26 atau lebih lama:

Instruksi di atas menjelaskan cara baru untuk memasang ekstensi ini menggunakan wfLoadExtension(). Jika Anda perlu memasang ekstensi ini di versi yang lebih lama (MediaWiki 1.26 dan sebelumnya), bukannya wfLoadExtension( 'AbuseFilter' );, Anda perlu menggunakan:

require_once "$IP/extensions/AbuseFilter/AbuseFilter.php";

Configuration

Hak pengguna

Once you installed the extension, you'll have to set up the user rights in "LocalSettings.php".

Right Deskripsi
abusefilter-modify Membuat atau memodifikasi filter penyalahgunaan
abusefilter-view Menampilkan filter penyalahgunaan
abusefilter-log Menampilkan catatan penyalahgunaan
abusefilter-log-detail Menampilkan entri catatan penyalahgunaan secara rinci
abusefilter-privatedetails Menampilkan data pribadi dalam catatan penyalahgunaan
abusefilter-modify-restricted Memodifikasi filter penyalahgunaan dengan tindakan terbatas
abusefilter-modify-global Buat atau ubah filter penyalahgunaan global
abusefilter-revert Mengembalikan semua perubahan yang dilakukan oleh suatu filter penyalahgunaan yang ditentukan
abusefilter-view-private Lihat penyaringan penyalahgunaan yang ditandai sebagai pribadi
abusefilter-log-private Lihat entri catatan filter penyalahgunaan yang ditandai pribadi
abusefilter-hide-log Sembunyikan entri di dalam catatan penyalahgunaan
abusefilter-hidden-log Lihat entri catatan penyalahgunaan tersembunyi
abusefilter-privatedetails-log Lihat log akses detail pribadi Log Penyalahgunaan

For example, the following sample configuration would allow sysops to do everything they want with AbuseFilter, and everyone to view the log and see public filter settings:

$wgGroupPermissions['sysop']['abusefilter-modify'] = true;
$wgGroupPermissions['*']['abusefilter-log-detail'] = true;
$wgGroupPermissions['*']['abusefilter-view'] = true;
$wgGroupPermissions['*']['abusefilter-log'] = true;
$wgGroupPermissions['sysop']['abusefilter-privatedetails'] = true;
$wgGroupPermissions['sysop']['abusefilter-modify-restricted'] = true;
$wgGroupPermissions['sysop']['abusefilter-revert'] = true;
Filters marked as private can only be viewed by users with either the abusefilter-modify or abusefilter-view-private permission.

Parameter

Variable name Default value Deskripsi
$wgAbuseFilterActions
[
    'throttle' => true,
    'warn' => true,
    'disallow' => true,
    'blockautopromote' => true,
    'block' => true,
    'rangeblock' => false,
    'degroup' => false,
    'tag' => true
]
The possible actions that can be taken by abuse filters. When adding a new action, check if it is restricted in $wgAbuseFilterActionRestrictions and, if it is, don't forget to add the abusefilter-modify-restricted right to the appropriate user groups.
$wgAbuseFilterConditionLimit
1000
The maximum number of 'conditions' that can be used each time the filters are run against a change. (More complex filters require more 'conditions').
$wgAbuseFilterValidGroups
[
    'default'
]
The list of "groups" filters can be divided into. By default there is only one group. Other extensions may add other groups.
$wgAbuseFilterEmergencyDisableThreshold
[
    'default' => 0.05
]
Disable a filter if it matched more than 2 edits, constituting more than 5 % of the actions which were checked against the filter's group in the "observed" period (at most one day), unless the filter has been changed in the last 86400 seconds (one day). See emergency throttling.
$wgAbuseFilterEmergencyDisableCount
[
    'default' => 2
]
$wgAbuseFilterEmergencyDisableAge
[
    'default' => 86400
]
$wgAbuseFilterParserClass
'AbuseFilterParser'
Name of AbuseFilter's parser class.
$wgAbuseFilterActionRestrictions
[
	"throttle" => false,
	"warn" => false,
	"disallow" => false,
	"blockautopromote" => true,
	"block" => true,
	"rangeblock" => true,
	"degroup" => true,
	"tag" => false
]
Users must have the "abusefilter-modify-restricted" user right as well as "abusefilter-modify" in order to create or modify filters which carry out these actions.
$wgAbuseFilterNotifications
false
Allows to configure the extension to send hit notifications to Special:RecentChanges or UDP. Opsi yang tersedia: rc, udp, rcandudp
$wgAbuseFilterNotificationsPrivate
false
Enable notifications for private filters.
$wgAbuseFilterCentralDB
null
Name of a database where global abuse filters will be stored in (only supported in the latest, development version). Requires CentralAuth installed otherwise global filters will break on a wikifarm.
$wgAbuseFilterIsCentral
false
Set this variable to true for the wiki where global AbuseFilters are stored in (only supported in the latest, development version). Requires CentralAuth installed otherwise global filters will break on a wikifarm.
$wgAbuseFilterLocallyDisabledGlobalActions
[
	"throttle" => false,
	"warn" => false,
	"disallow" => false,
	"blockautopromote" => false,
	"block" => false,
	"rangeblock" => false,
	"degroup" => false,
	"tag" => false
]
Disallow Centralised filters from taking actions set as true in this variable.
$wgAbuseFilterBlockDuration
'indefinite'
Duration of blocks made by AbuseFilter.
as of 1.31.0-wmf.25 block durations may be specified for every single filter and will override this variable. This variable is only used when enabling the block in order to preselect a default duration.
$wgAbuseFilterAnonBlockDuration
null
Duration of blocks made by AbuseFilter on users who are not logged in. The value of $wgAbuseFilterBlockDuration will be used if this is not set.
as of 1.31.0-wmf.25 block durations may be specified for every single filter and will override this variable. This variable is only used when enabling the block in order to preselect a default duration.
$wgAbuseFilterBlockAutopromoteDuration
5
Duration, in days, for which users' autopromotion is blocked by filters.
$wgAbuseFilterCustomActionsHandlers
[]
Callback functions for custom actions. (deprecated in 1.36) Use the AbuseFilterCustomActions hook instead.
$wgAbuseFilterDefaultWarningMessage
[
    'default' => 'abusefilter-warning'
]
Default warning messages, per filter group
$wgAbuseFilterDefaultDisallowMessage
[
    'default' => 'abusefilter-disallowed'
]
Default disallow messages, per filter group
$wgAbuseFilterLogIPMaxAge
3 * 30 * 24 * 3600
Age used as cutoff when purging old IP log data. Defaults to 3 months. Used by maintenance script purgeOldLogIPData.php.
$wgAbuseFilterProfileActionsCap
10000
Number of action that determines when to reset profiling stats.
$wgAbuseFilterLogPrivateDetailsAccess
false
Whether accessing private information from a filter log entry is logged.
$wgAbuseFilterPrivateDetailsForceReason
false
Whether users are forced to provide a reason for accessing private information from a filter log entry.
$wgAbuseFilterSlowFilterRuntimeLimit
500
Runtime in milliseconds before a filter is considered slow.
$wgAbuseFilterRangeBlockSize
[
    'IPv4' => '16',
    'IPv6' => '19',
]
Size of the range blocked by 'rangeblock' action.
$wgAbuseFilterLogIP
true
Whether to include IP in the abuse_filter_log

Pelambatan darurat

AbuseFilter comes with a feature that automatically throttles (disable) filters that have been edited recently and match a certain threshold of the latest actions.

This is done to prevent harmful edits on the filters to block every user that performs an action on the wiki or similar.

The condition to disable the filter depend on those variables:

  • $wgAbuseFilterEmergencyDisableThreshold - Percent of matches over the total amount of actions in the observed period.
  • $wgAbuseFilterEmergencyDisableCount - Count of matches of the filter in the observed period.
  • $wgAbuseFilterEmergencyDisableAge - Age of the filter to take it into account. If the last edit of the filter is older than this number of seconds, the filter won't be throttled, unless it's already throttled.
  • $wgAbuseFilterProfileActionsCap - Maximum number of recent actions to count against the threshold. Note that each action increments a counter, and once this counter reaches this configured value, this counter and the number of recent actions that matches all filters are reset to 0.

Throttled filters can be identified in the list of filters (Special:AbuseFilter) with the state Diaktifkan, dibatasi. Throttling happens silently, and there's no way to see when a filter got throttled.

When a filter gets throttled, it doesn't perform any dangerous action (the ones that can prevent the ongoing action), and only "safe" actions are allowed. Throttled filters don't get enabled automatically. To disable the throttling, you need to edit the filter. Note that you need to actually change something from the filter: changing something from the filter's notes is sufficient.

Note that editing the filter updates its age, and can cause it to be disabled if it reaches again the conditions to be throttled in a short period since the last edit, leading to a unusable filter if your wiki has more abuse edits than legitimate ones. Filters can also get randomly throttled if the action count reaches $wgAbuseFilterProfileActionsCap, causing all filter matches count to reset to 0, and then someone repeatedly makes a filter to hit.

Creating and managing filters

Once the extension has been installed, filters can be created/tested/changed/deleted and the logs can be accessed from the Abuse filter management page Special:AbuseFilter.

  • To import filters from Wikipedia: When you have installed the extension, go to w:Special:AbuseFilter, choose a filter (say w:Special:AbuseFilter/3), then click "Export this filter to another wiki", copy the text, go to "Special:AbuseFilter/import" on your wiki, paste the text.

API

AbuseFilter adds two API list modules, one for details of abuse filters ("abusefilters") and one for the abuse log, since it is separate from other MediaWiki logs ("abuselog"). It is not possible to create or modify abuse filters using the API.

list = abusefilters

List information about filters

Parameter
  • abfstartid - The filter id to start enumerating from
  • abfendid - The filter id to stop enumerating at
  • abfdir - The direction in which to enumerate (older, newer)
  • abfshow - Show only filters which meet these criteria (enabled|!enabled|deleted|!deleted|private|!private)
  • abflimit - The maximum number of filters to list
  • abfprop - Which properties to get (id|description|pattern|actions|hits|comments|lasteditor|lastedittime|status|private)

When filters are private, some of the properties specified with abfprop will be missing unless you have the appropriate user rights.

Examples

List non-private abuse filters

Result
<api>
  <query>
    <abusefilters>
      <filter id="1" hits="867" />
      <filter id="3" hits="66110" />
      <filter id="5" hits="464" />
      <filter id="6" hits="19" />
      <filter id="8" hits="7" />
      <filter id="9" hits="24869" />
      <filter id="11" hits="10033" />
      <filter id="14" hits="63" />
      <filter id="15" hits="15" />
      <filter id="16" hits="44" />
    </abusefilters>
  </query>
  <query-continue>
    <abusefilters abfstartid="18" />
  </query-continue>
</api>

list = abuselog

List instances where actions triggered an abuse filter.

Parameters
  • aflstart - The timestamp to start enumerating from
  • aflend - The timestamp to stop enumerating at
  • afldir - The direction in which to enumerate (older, newer)
  • afluser - Show only entries where the action was attempted by a given user or IP address.
  • afltitle - Show only entries where the action involved a given page.
  • aflfilter - Show only entries that triggered a given filter ID
  • afllimit - The maximum number of entries to list
  • aflprop - Which properties to get: (ids|filter|user|ip|title|action|details|result|timestamp|hidden|revid|wiki)
Contoh

List instances where the abuse filter was triggered in response to actions from the user "SineBot"

Result
<api>
  <query>
    <abuselog>
      <item id="900937" filter_id="211" user="SineBot" result="" />
      <item id="888404" filter_id="211" user="SineBot" result="" />
      <item id="862751" filter_id="211" user="SineBot" result="" />
      <item id="855649" filter_id="211" user="SineBot" result="" />
      <item id="842429" filter_id="211" user="SineBot" result="" />
      <item id="840958" filter_id="1" user="SineBot" result="" />
      <item id="824151" filter_id="211" user="SineBot" result="" />
      <item id="804892" filter_id="211" user="SineBot" result="" />
      <item id="205254" filter_id="58" user="SineBot" result="disallow" />
      <item id="205252" filter_id="58" user="SineBot" result="disallow" />
    </abuselog>
  </query>
  <query-continue>
    <abuselog aflstart="2009-04-19T02:07:55Z" />
  </query-continue>
</api>

Kemungkinan kesalahan

  • Some users might experience that creating new filters or modifying old filters fail and the user just gets redirected to the original page. If the Wiki is using SSL certificates, this error could possibly be because of the $wgServer value, which might be using "http://" instead of "https://". An indication of this error will be, the browser giving https warning for Special:AbuseFilter pages. (Topic:T23dyyih0ofjada5)

Integrasi dengan ekstensi lain

You can integrate AbuseFilter with other extension in various ways.

Menambahkan variabel untuk pemfilteran

It is possible to add new variables, to be used in abuse filters. A list of examples is available . To do that, you should:

  • Add a handler for the AbuseFilter-builder hook. To add a variable, you should use $builder['vars']['variable_name'] = 'i18n-key';, where variable_name is the name of the variable, and i18n-key is the fragment of an i18n key. The full key will be abusefilter-edit-builder-vars-{$your_key}.
  • Add the i18n messages you chose at the previous point.
  • Choose a hook handler where the variable will be computed. Depending on your use case, you could:
    • Implement the AbuseFilter-generateTitleVars hook; this is specifically thought for page-related variables;
    • Implement the AbuseFilter-generateUserVars hook; this is specifically thought for user-related variables;
    • Implement the AbuseFilter-generateGenericVars hook; this is for variables not bound to a specific page or user;
    • Implement the AbuseFilterAlterVariables hook; this is a bit more flexible than the other hooks, but it has a downside: your variable will not be available when examining past RecentChanges entries. If you want to implement that feature (and it's recommended to do so), you should use one of the hooks listed above, and use its third parameter ($RCRow).
  • Inside the hook handler, there are two ways to add a variable:
    • The "direct" way is calling $vars->setVar( 'var_name', var_value );. This is ideal only when the value is easy and quick to compute: the value is computed even if no active filter will use it.
    • The "lazy" way is calling $vars->setLazyLoadVar( 'var_name', 'method_name', $params );. Here, 'method_name' is a (unique) identifier that will be used to compute the variable (it's recommended to prefix it with the name of your extension). To register the method, you should add a handler for the AbuseFilter-computeVariable hook; therein, you should check if the $method passed matches your 'method_name', and if so, compute the variable. Lastly, $params is an array of parameters that you'll need to compute the variable; these are passed to the computeVariable hook handler. For an example of this, you can check out CentralAuth's global_user_groups.

Adding custom actions

You can add custom action handlers, so that each filter may perform further actions. To do that, you choose a name for the action ('my-action' from now on), and then:

  • Create a class named e.g. MyAction, that should extend \MediaWiki\Extension\AbuseFilter\Consequence, which can also implement HookAborterConsequence or ConsequencesDisablerConsequence
  • Add a subscriber to the AbuseFilterCustomActions hook; the subscriber should provide a callback as documented in the hook documentation, that returns an instance of the class created above, for instance:
class MyConsequence extends \MediaWiki\Extension\AbuseFilter\Consequence {
    public function run() {
        throw new \Exception( 'Write me' );
    }
}
public function onAbuseFilterCustomActions( &$actions ) {
    $actions[] = function ( \MediaWiki\Extension\AbuseFilter\Consequence\Parameters $params, array $rawParams ) : MyConsequence {
        return new MyConsequence( $params, $rawParams );
    };
}

Then you should add the following i18n messages; you can replace 'my_action' with e.g. 'block' to see what the messages are for:

  • 'abusefilter-edit-action-${my_action}'
  • 'abusefilter-action-${my_action'

Adding rule groups

You can also add extra rule groups, which can be used to group existing abuse filters. Note that, at the moment, each filter can only be in a single group (T116642). Currently, the only known consumer of this feature is Extension:StructuredDiscussions. To do that, you should:

  • Append the name of the group to $wgAbuseFilterValidGroups
  • Add some code to run the filters with your group. Note that AbuseFilter won't do that on its own. To do that, you should construct an AbuseFilterRunner object, passing in the name of your group.

See also