Direitos do utilizador

Assim que instalar a extensão, terá de configurar os direitos do utilizador nas "LocalSettings.php".

Por exemplo, o exemplo de configuração seguinte permitiria que os administradores de sistemas fizessem tudo o que quisessem com o 'Filtro de Abuso' e que todos visualizassem as definições de registo e de filtro público:

$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;
$wgGroupPermissions['sysop']['abusefilter-access-protected-vars'] = true;
$wgGroupPermissions['sysop']['abusefilter-protected-vars-log'] = true;

Parâmetros

[
    'throttle' => true,
    'warn' => true,
    'disallow' => true,
    'blockautopromote' => true,
    'block' => true,
    'rangeblock' => false,
    'degroup' => false,
    'tag' => true
]

1000

[
    'default'
]

[
    'default' => 0.05
]

[
    'default' => 2
]

[
    'default' => 86400
]

[
	"throttle" => false,
	"warn" => false,
	"disallow" => false,
	"blockautopromote" => true,
	"block" => true,
	"rangeblock" => true,
	"degroup" => true,
	"tag" => false
]

false

false

null

false

[
	"throttle" => false,
	"warn" => false,
	"disallow" => false,
	"blockautopromote" => false,
	"block" => false,
	"rangeblock" => false,
	"degroup" => false,
	"tag" => false
]

'indefinite'

null

5

[
    'default' => 'abusefilter-warning'
]

[
    'default' => 'abusefilter-disallowed'
]

true

3 * 30 * 24 * 3600

10000

false

false

500

[
    'IPv4' => '16',
    'IPv6' => '19',
]

[ "user_unnamed_ip" ]

Limitação de emergência

• $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.

Throttled filters can be identified in the list of filters (Special:AbuseFilter) with the state Ativado, Número elevado de correspondências. Throttling happens silently, and there's no way to see when a filter got throttled, except when Extension:Echo is installed, then a notification is sent to the user who was last to modify the filter.

When a filter gets throttled, it doesn't perform any dangerous action (actions usually restricted to special rights like blocking the user, or removing it from groups, controlled by $wgAbuseFilterActionRestrictions), and only "safe" actions are allowed (the ones that can warn or prevent the ongoing action). 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.

list=abusefilters (abf)

Listar informação sobre os filtros

Parâmetros

• 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|protected|!protected
• abflimit – The maximum number of filters to list
• abfprop – Which properties to get: id|description|pattern|actions|hits|comments|lasteditor|lastedittime|status|private|protected

Exemplos

{
    "batchcomplete": "",
    "continue": {
        "abfstartid": 18,
        "continue": "-||"
    },
    "query": {
        "abusefilters": [
            {
                "id": 1,
                "hits": 41430
            },
            {
                "id": 3,
                "hits": 957485
            },
            {
                "id": 5,
                "hits": 5931
            },
            {
                "id": 6,
                "hits": 19
            },
            {
                "id": 8,
                "hits": 7
            },
            {
                "id": 9,
                "hits": 41354
            },
            {
                "id": 11,
                "hits": 132971
            },
            {
                "id": 12,
                "hits": 139693
            },
            {
                "id": 14,
                "hits": 63
            },
            {
                "id": 15,
                "hits": 15
            }
        ]
    }
}

list=abuselog (afl)

Parâmetros

• afllogid – A single integer log ID to list.
• 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|title|action|details|result|timestamp|hidden|revid|wiki)

aflprop=wiki is recognized only on central wikis.

Exemplo

{
    "batchcomplete": "",
    "continue": {
        "aflstart": "2018-03-06T02:34:18Z",
        "continue": "-||"
    },
    "query": {
        "abuselog": [
            {
                "id": 27219261,
                "filter_id": "1073"
            },
            {
                "id": 26938051,
                "filter_id": ""
            },
            {
                "id": 23388942,
                "filter_id": "1"
            },
            {
                "id": 22044912,
                "filter_id": ""
            },
            {
                "id": 22032235,
                "filter_id": ""
            },
            {
                "id": 22032196,
                "filter_id": ""
            },
            {
                "id": 21983882,
                "filter_id": ""
            },
            {
                "id": 20594818,
                "filter_id": "904"
            },
            {
                "id": 20593489,
                "filter_id": "904"
            },
            {
                "id": 20590442,
                "filter_id": "904"
            }
        ]
    }
}

Adição de variáveis para a filtragem

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.

Adição de ações personalizadas

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 MyAction 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 MyAction( $params, $rawParams );
    };
}

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

Adição de grupos de regra

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 Extensão: Discussões Estruturadas . To do that, you should: