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1<?php
2/**
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2 of the License, or
6 * (at your option) any later version.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
16 * http://www.gnu.org/copyleft/gpl.html
17 *
18 * @file
19 */
20
21namespace MediaWiki\Specials;
22
23use ErrorPageError;
24use HtmlArmor;
25use LogEventsList;
26use MediaWiki\Block\BlockActionInfo;
27use MediaWiki\Block\BlockPermissionCheckerFactory;
28use MediaWiki\Block\BlockUser;
29use MediaWiki\Block\BlockUserFactory;
30use MediaWiki\Block\BlockUtils;
31use MediaWiki\Block\DatabaseBlock;
32use MediaWiki\Block\DatabaseBlockStore;
33use MediaWiki\Block\Restriction\ActionRestriction;
34use MediaWiki\Block\Restriction\NamespaceRestriction;
35use MediaWiki\Block\Restriction\PageRestriction;
36use MediaWiki\CommentStore\CommentStore;
37use MediaWiki\Context\IContextSource;
38use MediaWiki\Html\Html;
39use MediaWiki\HTMLForm\HTMLForm;
40use MediaWiki\Language\Language;
41use MediaWiki\MainConfigNames;
42use MediaWiki\MediaWikiServices;
43use MediaWiki\Message\Message;
44use MediaWiki\Page\PageReference;
45use MediaWiki\Page\PageReferenceValue;
46use MediaWiki\Permissions\Authority;
47use MediaWiki\Request\WebRequest;
48use MediaWiki\SpecialPage\FormSpecialPage;
49use MediaWiki\SpecialPage\SpecialPage;
50use MediaWiki\Status\Status;
51use MediaWiki\Title\NamespaceInfo;
52use MediaWiki\Title\Title;
53use MediaWiki\Title\TitleFormatter;
54use MediaWiki\User\User;
55use MediaWiki\User\UserIdentity;
56use MediaWiki\User\UserNamePrefixSearch;
57use MediaWiki\User\UserNameUtils;
58use OOUI\FieldLayout;
59use OOUI\HtmlSnippet;
60use OOUI\LabelWidget;
61use OOUI\Widget;
62use Wikimedia\IPUtils;
63use Wikimedia\Message\MessageSpecifier;
64
65/**
66 * Allow users with 'block' user right to block IPs and user accounts from
67 * editing pages and other actions.
68 *
69 * @ingroup SpecialPage
70 */
71class SpecialBlock extends FormSpecialPage {
72
73    private BlockUtils $blockUtils;
74    private BlockPermissionCheckerFactory $blockPermissionCheckerFactory;
75    private BlockUserFactory $blockUserFactory;
76    private DatabaseBlockStore $blockStore;
77    private UserNameUtils $userNameUtils;
78    private UserNamePrefixSearch $userNamePrefixSearch;
79    private BlockActionInfo $blockActionInfo;
80    private TitleFormatter $titleFormatter;
81
82    /** @var UserIdentity|string|null User to be blocked, as passed either by parameter
83     * (url?wpTarget=Foo) or as subpage (Special:Block/Foo)
84     */
85    protected $target;
86
87    /** @var int DatabaseBlock::TYPE_ constant */
88    protected $type;
89
90    /** @var User|string The previous block target */
91    protected $previousTarget;
92
93    /** @var bool Whether the previous submission of the form asked for HideUser */
94    protected $requestedHideUser;
95
96    /** @var bool */
97    protected $alreadyBlocked;
98
99    /**
100     * @var MessageSpecifier[]
101     */
102    protected $preErrors = [];
103
104    /** @var bool */
105    protected bool $useCodex = false;
106
107    /** @var bool */
108    protected bool $useMultiblocks = false;
109
110    /**
111     * @var array <mixed,mixed> An associative array used to pass vars to Codex form
112     */
113    protected array $codexFormData = [];
114
115    private NamespaceInfo $namespaceInfo;
116
117    /**
118     * @param BlockUtils $blockUtils
119     * @param BlockPermissionCheckerFactory $blockPermissionCheckerFactory
120     * @param BlockUserFactory $blockUserFactory
121     * @param DatabaseBlockStore $blockStore
122     * @param UserNameUtils $userNameUtils
123     * @param UserNamePrefixSearch $userNamePrefixSearch
124     * @param BlockActionInfo $blockActionInfo
125     * @param TitleFormatter $titleFormatter
126     * @param NamespaceInfo $namespaceInfo
127     */
128    public function __construct(
129        BlockUtils $blockUtils,
130        BlockPermissionCheckerFactory $blockPermissionCheckerFactory,
131        BlockUserFactory $blockUserFactory,
132        DatabaseBlockStore $blockStore,
133        UserNameUtils $userNameUtils,
134        UserNamePrefixSearch $userNamePrefixSearch,
135        BlockActionInfo $blockActionInfo,
136        TitleFormatter $titleFormatter,
137        NamespaceInfo $namespaceInfo
138    ) {
139        parent::__construct( 'Block', 'block' );
140
141        $this->blockUtils = $blockUtils;
142        $this->blockPermissionCheckerFactory = $blockPermissionCheckerFactory;
143        $this->blockUserFactory = $blockUserFactory;
144        $this->blockStore = $blockStore;
145        $this->userNameUtils = $userNameUtils;
146        $this->userNamePrefixSearch = $userNamePrefixSearch;
147        $this->blockActionInfo = $blockActionInfo;
148        $this->titleFormatter = $titleFormatter;
149        $this->namespaceInfo = $namespaceInfo;
150        $this->useCodex = $this->getConfig()->get( MainConfigNames::UseCodexSpecialBlock ) ||
151            $this->getRequest()->getBool( 'usecodex' );
152        $this->useMultiblocks = $this->getConfig()->get( MainConfigNames::EnableMultiBlocks ) ||
153            $this->getRequest()->getBool( 'multiblocks' );
154    }
155
156    public function getDescription(): Message {
157        return $this->msg( $this->useMultiblocks ? 'block-manage-blocks' : 'block' );
158    }
159
160    /**
161     * @inheritDoc
162     */
163    public function execute( $par ) {
164        parent::execute( $par );
165
166        if ( $this->useCodex ) {
167            $this->codexFormData[ 'blockEnableMultiblocks' ] = $this->useMultiblocks;
168            $this->codexFormData[ 'blockTargetUser' ] = $this->target instanceof UserIdentity ?
169                $this->target->getName() :
170                $this->target ?? null;
171            $this->codexFormData[ 'blockShowSuppressLog' ] = $this->getAuthority()->isAllowed( 'suppressionlog' );
172            $this->getOutput()->addJsConfigVars( $this->codexFormData );
173        }
174    }
175
176    /**
177     * @inheritDoc
178     */
179    public function doesWrites() {
180        return true;
181    }
182
183    /**
184     * Check that the user can unblock themselves if they are trying to do so
185     *
186     * @param User $user
187     * @throws ErrorPageError
188     */
189    protected function checkExecutePermissions( User $user ) {
190        parent::checkExecutePermissions( $user );
191        // T17810: blocked admins should have limited access here
192        $status = $this->blockPermissionCheckerFactory
193            ->newBlockPermissionChecker( $this->target, $user )
194            ->checkBlockPermissions();
195        if ( $status !== true ) {
196            throw new ErrorPageError( 'badaccess', $status );
197        }
198    }
199
200    /**
201     * We allow certain special cases where user is blocked
202     *
203     * @return bool
204     */
205    public function requiresUnblock() {
206        return false;
207    }
208
209    /**
210     * Handle some magic here
211     *
212     * @param string $par
213     */
214    protected function setParameter( $par ) {
215        // Extract variables from the request.  Try not to get into a situation where we
216        // need to extract *every* variable from the form just for processing here, but
217        // there are legitimate uses for some variables
218        $request = $this->getRequest();
219        [ $this->target, $this->type ] = $this->getTargetAndTypeInternal( $par, $request );
220        if ( $this->target instanceof UserIdentity ) {
221            // Set the 'relevant user' in the skin, so it displays links like Contributions,
222            // User logs, UserRights, etc.
223            $this->getSkin()->setRelevantUser( $this->target );
224        }
225
226        [ $this->previousTarget, /*...*/ ] = $this->blockUtils
227            ->parseBlockTarget( $request->getVal( 'wpPreviousTarget' ) );
228        $this->requestedHideUser = $request->getBool( 'wpHideUser' );
229
230        if ( $this->useCodex ) {
231            // Parse wpExpiry param
232            $givenExpiry = $request->getVal( 'wpExpiry', '' );
233            if ( wfIsInfinity( $givenExpiry ) ) {
234                $this->codexFormData[ 'blockExpiryPreset' ] = 'infinite';
235            } else {
236                $expiry = date_parse( $givenExpiry );
237                $this->codexFormData[ 'blockExpiryPreset' ] = isset( $expiry[ 'relative' ] ) ?
238                    // Relative expiry (e.g. '1 week')
239                    $givenExpiry :
240                    // Absolute expiry, formatted for <input type="datetime-local">
241                    $this->formatExpiryForHtml( $request->getVal( 'wpExpiry', '' ) );
242            }
243
244            $this->codexFormData[ 'blockTypePreset' ] =
245                $request->getVal( 'wpEditingRestriction' ) === 'sitewide' ||
246                $request->getVal( 'wpEditingRestriction' ) === 'partial' ?
247                $request->getVal( 'wpEditingRestriction' ) :
248                'sitewide';
249            $this->codexFormData[ 'blockReasonPreset' ] = $request->getVal( 'wpReason' );
250            $this->codexFormData[ 'blockReasonOtherPreset' ] = $request->getVal( 'wpReason-other' );
251            $blockAdditionalDetailsPreset = $blockDetailsPreset = [];
252
253            if ( $request->getBool( 'wpCreateAccount' ) ) {
254                $blockDetailsPreset[] = 'wpCreateAccount';
255            }
256
257            if ( $request->getBool( 'wpDisableEmail' ) ) {
258                $blockDetailsPreset[] = 'wpDisableEmail';
259            }
260
261            if ( $request->getBool( 'wpDisableUTEdit' ) ) {
262                $blockDetailsPreset[] = 'wpDisableUTEdit';
263            }
264
265            if ( $request->getVal( 'wpAutoBlock' ) !== '0' ) {
266                $blockAdditionalDetailsPreset[] = 'wpAutoBlock';
267            }
268
269            if ( $request->getBool( 'wpWatch' ) ) {
270                $blockAdditionalDetailsPreset[] = 'wpWatch';
271            }
272
273            if ( $request->getBool( 'wpHideUser' ) ) {
274                $blockAdditionalDetailsPreset[] = 'wpHideUser';
275            }
276
277            if ( $request->getBool( 'wpHardBlock' ) ) {
278                $blockAdditionalDetailsPreset[] = 'wpHardBlock';
279            }
280
281            $this->codexFormData[ 'blockDetailsPreset' ] = $blockDetailsPreset;
282            $this->codexFormData[ 'blockAdditionalDetailsPreset' ] = $blockAdditionalDetailsPreset;
283            $this->codexFormData[ 'blockPageRestrictions' ] = $request->getVal( 'wpPageRestrictions' );
284            $this->codexFormData[ 'blockNamespaceRestrictions' ] = $request->getVal( 'wpNamespaceRestrictions' );
285        }
286    }
287
288    /**
289     * Customizes the HTMLForm a bit
290     *
291     * @param HTMLForm $form
292     */
293    protected function alterForm( HTMLForm $form ) {
294        $form->setHeaderHtml( '' );
295        $form->setSubmitDestructive();
296
297        $msg = $this->alreadyBlocked ? 'ipb-change-block' : 'ipbsubmit';
298        $form->setSubmitTextMsg( $msg );
299
300        $this->addHelpLink( 'Help:Blocking users' );
301
302        // Don't need to do anything if the form has been posted
303        if ( !$this->getRequest()->wasPosted() && $this->preErrors ) {
304            // Mimic error messages normally generated by the form
305            $form->addHeaderHtml( (string)new FieldLayout(
306                new Widget( [] ),
307                [
308                    'align' => 'top',
309                    'errors' => array_map( function ( $errMsg ) {
310                        return new HtmlSnippet( $this->msg( $errMsg )->parse() );
311                    }, $this->preErrors ),
312                ]
313            ) );
314
315            if ( $this->useCodex ) {
316                $this->codexFormData[ 'blockPreErrors' ] = array_map( function ( $errMsg ) {
317                    return $this->msg( $errMsg )->parse();
318                }, $this->preErrors );
319            }
320        }
321    }
322
323    /**
324     * @inheritDoc
325     */
326    protected function getDisplayFormat() {
327        return $this->useCodex ? 'codex' : 'ooui';
328    }
329
330    /**
331     * Get the HTMLForm descriptor array for the block form
332     * @return array
333     */
334    protected function getFormFields() {
335        $conf = $this->getConfig();
336        $blockAllowsUTEdit = $conf->get( MainConfigNames::BlockAllowsUTEdit );
337
338        $this->getOutput()->enableOOUI();
339
340        $user = $this->getUser();
341
342        $suggestedDurations = $this->getLanguage()->getBlockDurations();
343
344        $a = [];
345
346        $a['Target'] = [
347            'type' => 'user',
348            'ipallowed' => true,
349            'iprange' => true,
350            'id' => 'mw-bi-target',
351            'size' => '45',
352            'autofocus' => true,
353            'required' => true,
354            'placeholder' => $this->msg( 'block-target-placeholder' )->text(),
355            'validation-callback' => function ( $value, $alldata, $form ) {
356                $status = $this->blockUtils->validateTarget( $value );
357                if ( !$status->isOK() ) {
358                    $errors = $status->getMessages();
359                    return $form->msg( $errors[0] );
360                }
361                return true;
362            },
363            'section' => 'target',
364        ];
365
366        $editingRestrictionOptions = $this->useCodex ?
367            // If we're using Codex, use the option-descriptions feature, which is only supported by Codex
368            [
369                'options-messages' => [
370                    'ipb-sitewide' => 'sitewide',
371                    'ipb-partial' => 'partial'
372                ],
373                'option-descriptions-messages' => [
374                    'sitewide' => 'ipb-sitewide-help',
375                    'partial' => 'ipb-partial-help'
376                ],
377                'option-descriptions-messages-parse' => true,
378            ] :
379            // Otherwise, if we're using OOUI, add the options' descriptions as part of their labels
380            [
381                'options' => [
382                    $this->msg( 'ipb-sitewide' )->escaped() .
383                        new LabelWidget( [
384                            'classes' => [ 'oo-ui-inline-help' ],
385                            'label' => new HtmlSnippet( $this->msg( 'ipb-sitewide-help' )->parse() ),
386                        ] ) => 'sitewide',
387                    $this->msg( 'ipb-partial' )->escaped() .
388                        new LabelWidget( [
389                            'classes' => [ 'oo-ui-inline-help' ],
390                            'label' => new HtmlSnippet( $this->msg( 'ipb-partial-help' )->parse() ),
391                        ] ) => 'partial',
392                ]
393            ];
394
395        $a['EditingRestriction'] = [
396            'type' => 'radio',
397            'cssclass' => 'mw-block-editing-restriction',
398            'default' => 'sitewide',
399            'section' => 'actions',
400        ] + $editingRestrictionOptions;
401
402        $a['PageRestrictions'] = [
403            'type' => 'titlesmultiselect',
404            'label' => $this->msg( 'ipb-pages-label' )->text(),
405            'exists' => true,
406            'max' => 10,
407            'cssclass' => 'mw-htmlform-checkradio-indent mw-block-partial-restriction',
408            'default' => '',
409            'showMissing' => false,
410            'excludeDynamicNamespaces' => true,
411            'input' => [
412                'autocomplete' => false
413            ],
414            'section' => 'actions',
415        ];
416
417        $a['NamespaceRestrictions'] = [
418            'type' => 'namespacesmultiselect',
419            'label' => $this->msg( 'ipb-namespaces-label' )->text(),
420            'exists' => true,
421            'cssclass' => 'mw-htmlform-checkradio-indent mw-block-partial-restriction',
422            'default' => '',
423            'input' => [
424                'autocomplete' => false
425            ],
426            'section' => 'actions',
427        ];
428
429        if ( $conf->get( MainConfigNames::EnablePartialActionBlocks ) ) {
430            $blockActions = $this->blockActionInfo->getAllBlockActions();
431            $optionMessages = array_combine(
432                array_map( static function ( $action ) {
433                    return "ipb-action-$action";
434                }, array_keys( $blockActions ) ),
435                $blockActions
436            );
437
438            $this->codexFormData[ 'partialBlockActionOptions'] = $optionMessages;
439
440            $a['ActionRestrictions'] = [
441                'type' => 'multiselect',
442                'cssclass' => 'mw-htmlform-checkradio-indent mw-block-partial-restriction mw-block-action-restriction',
443                'options-messages' => $optionMessages,
444                'section' => 'actions',
445            ];
446        }
447
448        $a['CreateAccount'] = [
449            'type' => 'check',
450            'cssclass' => 'mw-block-restriction',
451            'label-message' => 'ipbcreateaccount',
452            'default' => true,
453            'section' => 'details',
454        ];
455
456        if ( $this->blockPermissionCheckerFactory
457            ->newBlockPermissionChecker( null, $user )
458            ->checkEmailPermissions()
459        ) {
460            $a['DisableEmail'] = [
461                'type' => 'check',
462                'cssclass' => 'mw-block-restriction',
463                'label-message' => 'ipbemailban',
464                'section' => 'details',
465            ];
466
467            $this->codexFormData[ 'blockDisableEmailVisible'] = true;
468        }
469
470        if ( $blockAllowsUTEdit ) {
471            $a['DisableUTEdit'] = [
472                'type' => 'check',
473                'cssclass' => 'mw-block-restriction',
474                'label-message' => 'ipb-disableusertalk',
475                'default' => false,
476                'section' => 'details',
477            ];
478
479            $this->codexFormData[ 'blockDisableUTEditVisible'] = true;
480        }
481
482        $defaultExpiry = $this->msg( 'ipb-default-expiry' )->inContentLanguage();
483        if ( $this->type === DatabaseBlock::TYPE_RANGE || $this->type === DatabaseBlock::TYPE_IP ) {
484            $defaultExpiryIP = $this->msg( 'ipb-default-expiry-ip' )->inContentLanguage();
485            if ( !$defaultExpiryIP->isDisabled() ) {
486                $defaultExpiry = $defaultExpiryIP;
487            }
488        }
489
490        $a['Expiry'] = [
491            'type' => 'expiry',
492            'required' => true,
493            'options' => $suggestedDurations,
494            'default' => $defaultExpiry->text(),
495            'section' => 'expiry',
496        ];
497        $this->codexFormData[ 'blockExpiryOptions' ] = $suggestedDurations;
498        $this->codexFormData[ 'blockExpiryDefault' ] = $defaultExpiry->text();
499
500        $a['Reason'] = [
501            'type' => 'selectandother',
502            // HTML maxlength uses "UTF-16 code units", which means that characters outside BMP
503            // (e.g. emojis) count for two each. This limit is overridden in JS to instead count
504            // Unicode codepoints.
505            'maxlength' => CommentStore::COMMENT_CHARACTER_LIMIT,
506            'maxlength-unit' => 'codepoints',
507            'options-message' => 'ipbreason-dropdown',
508            'section' => 'reason',
509            'help-message' => 'block-reason-help',
510        ];
511
512        if ( $this->useCodex ) {
513            $blockReasonOptions = Html::listDropdownOptionsCodex(
514                Html::listDropdownOptions( $this->msg( 'ipbreason-dropdown' )->plain(),
515                    [ 'other' => $this->msg( 'htmlform-selectorother-other' )->text() ]
516            ) );
517            $this->codexFormData[ 'blockReasonOptions' ] = $blockReasonOptions;
518            $this->codexFormData[ 'blockReasonMaxLength' ] = CommentStore::COMMENT_CHARACTER_LIMIT;
519        }
520
521        $a['AutoBlock'] = [
522            'type' => 'check',
523            'label-message' => [
524                'ipbenableautoblock',
525                Message::durationParam( $conf->get( MainConfigNames::AutoblockExpiry ) )
526            ],
527            'default' => true,
528            'section' => 'options',
529        ];
530        $this->codexFormData['blockAutoblockExpiry'] = $this->getLanguage()
531            ->formatDuration( $conf->get( MainConfigNames::AutoblockExpiry ) );
532
533        // Allow some users to hide name from block log, blocklist and listusers
534        if ( $this->getAuthority()->isAllowed( 'hideuser' ) ) {
535            $a['HideUser'] = [
536                'type' => 'check',
537                'label-message' => 'ipbhidename',
538                'cssclass' => 'mw-block-hideuser',
539                'section' => 'options',
540            ];
541
542            $this->codexFormData['blockHideUser'] = true;
543        }
544
545        // Watchlist their user page? (Only if user is logged in)
546        if ( $user->isRegistered() ) {
547            $a['Watch'] = [
548                'type' => 'check',
549                'label-message' => 'ipbwatchuser',
550                'section' => 'options',
551            ];
552        }
553
554        $a['HardBlock'] = [
555            'type' => 'check',
556            'label-message' => 'ipb-hardblock',
557            'default' => false,
558            'section' => 'options',
559        ];
560
561        // This is basically a copy of the Target field, but the user can't change it, so we
562        // can see if the warnings we maybe showed to the user before still apply
563        $a['PreviousTarget'] = [
564            'type' => 'hidden',
565            'default' => false,
566        ];
567
568        // We'll turn this into a checkbox if we need to
569        $a['Confirm'] = [
570            'type' => 'hidden',
571            'default' => '',
572            'label-message' => 'ipb-confirm',
573            'cssclass' => 'mw-block-confirm',
574        ];
575
576        $this->maybeAlterFormDefaults( $a );
577
578        // Allow extensions to add more fields
579        $this->getHookRunner()->onSpecialBlockModifyFormFields( $this, $a );
580
581        return $a;
582    }
583
584    /**
585     * If the user has already been blocked with similar settings, load that block
586     * and change the defaults for the form fields to match the existing settings.
587     * @param array &$fields HTMLForm descriptor array
588     */
589    protected function maybeAlterFormDefaults( &$fields ) {
590        // This will be overwritten by request data
591        $fields['Target']['default'] = (string)$this->target;
592
593        if ( $this->target ) {
594            $status = $this->blockUtils->validateTarget( $this->target );
595            if ( !$status->isOK() ) {
596                $errors = $status->getMessages( 'error' );
597                $this->preErrors = array_merge( $this->preErrors, $errors );
598            }
599        }
600
601        // This won't be
602        $fields['PreviousTarget']['default'] = (string)$this->target;
603
604        $block = $this->blockStore->newFromTarget( $this->target );
605
606        // Populate fields if there is a block that is not an autoblock; if it is a range
607        // block, only populate the fields if the range is the same as $this->target
608        if ( $block instanceof DatabaseBlock && $block->getType() !== DatabaseBlock::TYPE_AUTO
609            && ( $this->type != DatabaseBlock::TYPE_RANGE
610                || ( $this->target && $block->isBlocking( $this->target ) ) )
611        ) {
612            $fields['HardBlock']['default'] = $block->isHardblock();
613            $fields['CreateAccount']['default'] = $block->isCreateAccountBlocked();
614            $fields['AutoBlock']['default'] = $block->isAutoblocking();
615
616            if ( isset( $fields['DisableEmail'] ) ) {
617                $fields['DisableEmail']['default'] = $block->isEmailBlocked();
618            }
619
620            if ( isset( $fields['HideUser'] ) ) {
621                $fields['HideUser']['default'] = $block->getHideName();
622            }
623
624            if ( isset( $fields['DisableUTEdit'] ) ) {
625                $fields['DisableUTEdit']['default'] = !$block->isUsertalkEditAllowed();
626            }
627
628            // If the username was hidden (bl_deleted == 1), don't show the reason
629            // unless this user also has rights to hideuser: T37839
630            if ( !$block->getHideName() || $this->getAuthority()->isAllowed( 'hideuser' ) ) {
631                $fields['Reason']['default'] = $block->getReasonComment()->text;
632            } else {
633                $fields['Reason']['default'] = '';
634            }
635
636            if ( $this->getRequest()->wasPosted() ) {
637                // Ok, so we got a POST submission asking us to reblock a user.  So show the
638                // confirm checkbox; the user will only see it if they haven't previously
639                $fields['Confirm']['type'] = 'check';
640            } else {
641                // We got a target, but it wasn't a POST request, so the user must have gone
642                // to a link like [[Special:Block/User]].  We don't need to show the checkbox
643                // as long as they go ahead and block *that* user
644                $fields['Confirm']['default'] = 1;
645            }
646
647            if ( $block->getExpiry() == 'infinity' ) {
648                $fields['Expiry']['default'] = $this->codexFormData[ 'blockExpiryDefault' ] = 'infinite';
649            } else {
650                $fields['Expiry']['default'] = wfTimestamp( TS_RFC2822, $block->getExpiry() );
651
652                // Don't overwrite if expiry was specified in the URL
653                if ( !isset( $this->codexFormData[ 'blockExpiryPreset' ] ) ) {
654                    $this->codexFormData[ 'blockExpiryPreset' ] = $this->formatExpiryForHtml( $block->getExpiry() );
655                }
656            }
657
658            if ( !$block->isSitewide() ) {
659                $fields['EditingRestriction']['default'] =
660                    $this->codexFormData[ 'blockTypePreset' ] = 'partial';
661
662                $pageRestrictions = [];
663                $namespaceRestrictions = [];
664                foreach ( $block->getRestrictions() as $restriction ) {
665                    if ( $restriction instanceof PageRestriction && $restriction->getTitle() ) {
666                        $pageRestrictions[] = $restriction->getTitle()->getPrefixedText();
667                    } elseif ( $restriction instanceof NamespaceRestriction &&
668                        $this->namespaceInfo->exists( $restriction->getValue() )
669                    ) {
670                        $namespaceRestrictions[] = $restriction->getValue();
671                    }
672                }
673
674                // Sort the restrictions so they are in alphabetical order.
675                sort( $pageRestrictions );
676                $fields['PageRestrictions']['default'] =
677                    $this->codexFormData[ 'blockPageRestrictions' ] = implode( "\n", $pageRestrictions );
678                sort( $namespaceRestrictions );
679                $fields['NamespaceRestrictions']['default'] =
680                    $this->codexFormData[ 'blockNamespaceRestrictions' ] = implode( "\n", $namespaceRestrictions );
681
682                if ( $this->getConfig()->get( MainConfigNames::EnablePartialActionBlocks ) ) {
683                    $actionRestrictions = [];
684                    foreach ( $block->getRestrictions() as $restriction ) {
685                        if ( $restriction instanceof ActionRestriction ) {
686                            $actionRestrictions[] = $restriction->getValue();
687                        }
688                    }
689                    $fields['ActionRestrictions']['default'] = $actionRestrictions;
690                }
691            }
692
693            $this->alreadyBlocked = true;
694            $this->codexFormData[ 'blockAlreadyBlocked' ] = $this->alreadyBlocked;
695            $this->preErrors[] = $this->msg( 'ipb-needreblock', wfEscapeWikiText( $block->getTargetName() ) );
696        }
697
698        if ( $this->alreadyBlocked || $this->getRequest()->wasPosted()
699            || $this->getRequest()->getCheck( 'wpCreateAccount' )
700        ) {
701            $this->getOutput()->addJsConfigVars( 'wgCreateAccountDirty', true );
702        }
703
704        // We always need confirmation to do HideUser
705        if ( $this->requestedHideUser && $this->getAuthority()->isAllowed( 'hideuser' ) ) {
706            $fields['Confirm']['type'] = 'check';
707            unset( $fields['Confirm']['default'] );
708            $this->preErrors[] = $this->msg( 'ipb-confirmhideuser', 'ipb-confirmaction' );
709        }
710
711        // Or if the user is trying to block themselves
712        if ( (string)$this->target === $this->getUser()->getName() ) {
713            $fields['Confirm']['type'] = 'check';
714            unset( $fields['Confirm']['default'] );
715            $this->preErrors[] = $this->msg( 'ipb-blockingself', 'ipb-confirmaction' );
716        }
717    }
718
719    /**
720     * Format a date string for use by <input type="datetime-local">
721     *
722     * @param string $expiry
723     * @return string Formatted as YYYY-MM-DDTHH:mm
724     */
725    private function formatExpiryForHtml( string $expiry ): string {
726        if ( preg_match( '/^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}/', $expiry ) === 1 ) {
727            // YYYY-MM-DDTHH:mm which is accepted by <input type="datetime-local">, but not by MediaWiki.
728            return substr( $expiry, 0, 16 );
729        } elseif ( $expiry === '' ) {
730            // No expiry specified
731            return '';
732        }
733        return substr( wfTimestamp( TS_ISO_8601, $expiry ), 0, 16 );
734    }
735
736    /**
737     * Add header elements like block log entries, etc.
738     * @return string
739     */
740    protected function preHtml() {
741        $this->getOutput()->addModuleStyles( [ 'mediawiki.special' ] );
742        if ( $this->useCodex ) {
743            $this->getOutput()->addModules( [ 'mediawiki.special.block.codex' ] );
744        } else {
745            $this->getOutput()->addModules( [ 'mediawiki.special.block' ] );
746        }
747
748        $blockCIDRLimit = $this->getConfig()->get( MainConfigNames::BlockCIDRLimit );
749        $text = $this->msg( 'blockiptext', $blockCIDRLimit['IPv4'], $blockCIDRLimit['IPv6'] )->parse();
750
751        $otherBlockMessages = [];
752        if ( $this->target !== null ) {
753            $targetName = $this->target;
754            if ( $this->target instanceof UserIdentity ) {
755                $targetName = $this->target->getName();
756            }
757            // Get other blocks, i.e. from GlobalBlocking or TorBlock extension
758            $this->getHookRunner()->onOtherBlockLogLink(
759                $otherBlockMessages, $targetName );
760
761            if ( count( $otherBlockMessages ) ) {
762                $s = Html::rawElement(
763                    'h2',
764                    [],
765                    $this->msg( 'ipb-otherblocks-header', count( $otherBlockMessages ) )->parse()
766                ) . "\n";
767
768                $list = '';
769
770                foreach ( $otherBlockMessages as $link ) {
771                    $list .= Html::rawElement( 'li', [], $link ) . "\n";
772                }
773
774                $s .= Html::rawElement(
775                    'ul',
776                    [ 'class' => 'mw-blockip-alreadyblocked' ],
777                    $list
778                ) . "\n";
779
780                $text .= $s;
781            }
782        }
783
784        return $text;
785    }
786
787    /**
788     * Add footer elements to the form
789     * @return string
790     */
791    protected function postHtml() {
792        $links = [];
793
794        $this->getOutput()->addModuleStyles( 'mediawiki.special' );
795
796        $linkRenderer = $this->getLinkRenderer();
797        // Link to the user's contributions, if applicable
798        if ( $this->target instanceof UserIdentity ) {
799            $contribsPage = SpecialPage::getTitleFor( 'Contributions', $this->target->getName() );
800            $links[] = $linkRenderer->makeLink(
801                $contribsPage,
802                $this->msg( 'ipb-blocklist-contribs', $this->target->getName() )->text()
803            );
804        }
805
806        // Link to unblock the specified user, or to a blank unblock form
807        if ( $this->target instanceof UserIdentity ) {
808            $message = $this->msg(
809                'ipb-unblock-addr',
810                wfEscapeWikiText( $this->target->getName() )
811            )->parse();
812            $list = SpecialPage::getTitleFor( 'Unblock', $this->target->getName() );
813        } else {
814            $message = $this->msg( 'ipb-unblock' )->parse();
815            $list = SpecialPage::getTitleFor( 'Unblock' );
816        }
817        $links[] = $linkRenderer->makeKnownLink(
818            $list,
819            new HtmlArmor( $message )
820        );
821
822        // Link to the block list
823        $links[] = $linkRenderer->makeKnownLink(
824            SpecialPage::getTitleFor( 'BlockList' ),
825            $this->msg( 'ipb-blocklist' )->text()
826        );
827
828        // Link to edit the block dropdown reasons, if applicable
829        if ( $this->getAuthority()->isAllowed( 'editinterface' ) ) {
830            $links[] = $linkRenderer->makeKnownLink(
831                $this->msg( 'ipbreason-dropdown' )->inContentLanguage()->getTitle(),
832                $this->msg( 'ipb-edit-dropdown' )->text(),
833                [],
834                [ 'action' => 'edit' ]
835            );
836        }
837
838        $text = Html::rawElement(
839            'p',
840            [ 'class' => 'mw-ipb-conveniencelinks' ],
841            $this->getLanguage()->pipeList( $links )
842        );
843
844        $userPage = self::getTargetUserTitle( $this->target );
845        if ( $userPage ) {
846            // Get relevant extracts from the block and suppression logs, if possible
847            $out = '';
848
849            LogEventsList::showLogExtract(
850                $out,
851                'block',
852                $userPage,
853                '',
854                [
855                    'lim' => 10,
856                    'msgKey' => [
857                        'blocklog-showlog',
858                        $this->titleFormatter->getText( $userPage ),
859                    ],
860                    'showIfEmpty' => false
861                ]
862            );
863            $text .= $out;
864
865            // Add suppression block entries if allowed
866            if ( $this->getAuthority()->isAllowed( 'suppressionlog' ) ) {
867                LogEventsList::showLogExtract(
868                    $out,
869                    'suppress',
870                    $userPage,
871                    '',
872                    [
873                        'lim' => 10,
874                        'conds' => [ 'log_action' => [ 'block', 'reblock', 'unblock' ] ],
875                        'msgKey' => [
876                            'blocklog-showsuppresslog',
877                            $this->titleFormatter->getText( $userPage ),
878                        ],
879                        'showIfEmpty' => false
880                    ]
881                );
882
883                $text .= $out;
884            }
885        }
886
887        return $text;
888    }
889
890    /**
891     * Get a user page target for things like logs.
892     * This handles account and IP range targets.
893     * @param UserIdentity|string|null $target
894     * @return PageReference|null
895     */
896    protected static function getTargetUserTitle( $target ): ?PageReference {
897        if ( $target instanceof UserIdentity ) {
898            return PageReferenceValue::localReference( NS_USER, $target->getName() );
899        }
900
901        if ( is_string( $target ) && IPUtils::isIPAddress( $target ) ) {
902            return PageReferenceValue::localReference( NS_USER, $target );
903        }
904
905        return null;
906    }
907
908    /**
909     * Get the target and type, given the request and the subpage parameter.
910     * Several parameters are handled for backwards compatability. 'wpTarget' is
911     * prioritized, since it matches the HTML form.
912     *
913     * @param string|null $par Subpage parameter passed to setup, or data value from
914     *  the HTMLForm
915     * @param WebRequest $request Try and get data from a request too
916     * @return array [ UserIdentity|string|null, DatabaseBlock::TYPE_ constant|null ]
917     * @phan-return array{0:UserIdentity|string|null,1:int|null}
918     */
919    private function getTargetAndTypeInternal( ?string $par, WebRequest $request ) {
920        $possibleTargets = [
921            $request->getVal( 'wpTarget', null ),
922            $par,
923            $request->getVal( 'ip', null ),
924            // B/C @since 1.18
925            $request->getVal( 'wpBlockAddress', null ),
926        ];
927        foreach ( $possibleTargets as $possibleTarget ) {
928            $targetAndType = $this->blockUtils
929                ->parseBlockTarget( $possibleTarget );
930            // If type is not null then target is valid
931            if ( $targetAndType[ 1 ] !== null ) {
932                break;
933            }
934        }
935        return $targetAndType;
936    }
937
938    /**
939     * Given the form data, actually implement a block.
940     *
941     * @deprecated since 1.36, use BlockUserFactory service instead,
942     *     hard-deprecated since 1.43
943     * @param array $data
944     * @param IContextSource $context
945     * @return bool|string|array|Status
946     */
947    public static function processForm( array $data, IContextSource $context ) {
948        wfDeprecated( __METHOD__, '1.36' );
949        $services = MediaWikiServices::getInstance();
950        return self::processFormInternal(
951            $data,
952            $context->getAuthority(),
953            $services->getBlockUserFactory(),
954            $services->getBlockUtils()
955        );
956    }
957
958    /**
959     * Implementation details for processForm
960     * Own function to allow sharing the deprecated code with non-deprecated and service code
961     *
962     * @param array $data
963     * @param Authority $performer
964     * @param BlockUserFactory $blockUserFactory
965     * @param BlockUtils $blockUtils
966     * @return bool|string|array|Status
967     */
968    private static function processFormInternal(
969        array $data,
970        Authority $performer,
971        BlockUserFactory $blockUserFactory,
972        BlockUtils $blockUtils
973    ) {
974        // Temporarily access service container until the feature flag is removed: T280532
975        $enablePartialActionBlocks = MediaWikiServices::getInstance()
976            ->getMainConfig()->get( MainConfigNames::EnablePartialActionBlocks );
977
978        $isPartialBlock = isset( $data['EditingRestriction'] ) &&
979            $data['EditingRestriction'] === 'partial';
980
981        // This might have been a hidden field or a checkbox, so interesting data
982        // can come from it
983        $data['Confirm'] = !in_array( $data['Confirm'], [ '', '0', null, false ], true );
984
985        // If the user has done the form 'properly', they won't even have been given the
986        // option to suppress-block unless they have the 'hideuser' permission
987        if ( !isset( $data['HideUser'] ) ) {
988            $data['HideUser'] = false;
989        }
990
991        /** @var User $target */
992        [ $target, $type ] = $blockUtils->parseBlockTarget( $data['Target'] );
993        if ( $type == DatabaseBlock::TYPE_USER ) {
994            $target = $target->getName();
995
996            // Give admins a heads-up before they go and block themselves.  Much messier
997            // to do this for IPs, but it's pretty unlikely they'd ever get the 'block'
998            // permission anyway, although the code does allow for it.
999            // Note: Important to use $target instead of $data['Target']
1000            // since both $data['PreviousTarget'] and $target are normalized
1001            // but $data['target'] gets overridden by (non-normalized) request variable
1002            // from previous request.
1003            if ( $target === $performer->getUser()->getName() &&
1004                ( $data['PreviousTarget'] !== $target || !$data['Confirm'] )
1005            ) {
1006                return [ 'ipb-blockingself', 'ipb-confirmaction' ];
1007            }
1008
1009            if ( $data['HideUser'] && !$data['Confirm'] ) {
1010                return [ 'ipb-confirmhideuser', 'ipb-confirmaction' ];
1011            }
1012        } elseif ( $type == DatabaseBlock::TYPE_IP ) {
1013            $target = $target->getName();
1014        } elseif ( $type != DatabaseBlock::TYPE_RANGE ) {
1015            // This should have been caught in the form field validation
1016            return [ 'badipaddress' ];
1017        }
1018
1019        // Reason, to be passed to the block object. For default values of reason, see
1020        // HTMLSelectAndOtherField::getDefault
1021        $blockReason = $data['Reason'][0] ?? '';
1022
1023        $pageRestrictions = [];
1024        $namespaceRestrictions = [];
1025        $actionRestrictions = [];
1026        if ( $isPartialBlock ) {
1027            if ( isset( $data['PageRestrictions'] ) && $data['PageRestrictions'] !== '' ) {
1028                $titles = explode( "\n", $data['PageRestrictions'] );
1029                foreach ( $titles as $title ) {
1030                    $pageRestrictions[] = PageRestriction::newFromTitle( $title );
1031                }
1032            }
1033            if ( isset( $data['NamespaceRestrictions'] ) && $data['NamespaceRestrictions'] !== '' ) {
1034                $namespaceRestrictions = array_map( static function ( $id ) {
1035                    return new NamespaceRestriction( 0, (int)$id );
1036                }, explode( "\n", $data['NamespaceRestrictions'] ) );
1037            }
1038            if (
1039                $enablePartialActionBlocks &&
1040                isset( $data['ActionRestrictions'] ) &&
1041                $data['ActionRestrictions'] !== ''
1042            ) {
1043                $actionRestrictions = array_map( static function ( $id ) {
1044                    return new ActionRestriction( 0, $id );
1045                }, $data['ActionRestrictions'] );
1046            }
1047        }
1048        $restrictions = array_merge( $pageRestrictions, $namespaceRestrictions, $actionRestrictions );
1049
1050        if ( !isset( $data['Tags'] ) ) {
1051            $data['Tags'] = [];
1052        }
1053
1054        $blockOptions = [
1055            'isCreateAccountBlocked' => $data['CreateAccount'],
1056            'isHardBlock' => $data['HardBlock'],
1057            'isAutoblocking' => $data['AutoBlock'],
1058            'isHideUser' => $data['HideUser'],
1059            'isPartial' => $isPartialBlock,
1060        ];
1061
1062        if ( isset( $data['DisableUTEdit'] ) ) {
1063            $blockOptions['isUserTalkEditBlocked'] = $data['DisableUTEdit'];
1064        }
1065        if ( isset( $data['DisableEmail'] ) ) {
1066            $blockOptions['isEmailBlocked'] = $data['DisableEmail'];
1067        }
1068
1069        $blockUser = $blockUserFactory->newBlockUser(
1070            $target,
1071            $performer,
1072            $data['Expiry'],
1073            $blockReason,
1074            $blockOptions,
1075            $restrictions,
1076            $data['Tags']
1077        );
1078
1079        // Indicates whether the user is confirming the block and is aware of
1080        // the conflict (did not change the block target in the meantime)
1081        $blockNotConfirmed = !$data['Confirm'] || ( array_key_exists( 'PreviousTarget', $data )
1082            && $data['PreviousTarget'] !== $target );
1083
1084        // Special case for API - T34434
1085        $reblockNotAllowed = ( array_key_exists( 'Reblock', $data ) && !$data['Reblock'] );
1086
1087        $doReblock = !$blockNotConfirmed && !$reblockNotAllowed;
1088
1089        $status = $blockUser->placeBlock( $doReblock );
1090        if ( !$status->isOK() ) {
1091            return $status;
1092        }
1093
1094        if (
1095            // Can't watch a range block
1096            $type != DatabaseBlock::TYPE_RANGE
1097
1098            // Technically a wiki can be configured to allow anonymous users to place blocks,
1099            // in which case the 'Watch' field isn't included in the form shown, and we should
1100            // not try to access it.
1101            && array_key_exists( 'Watch', $data )
1102            && $data['Watch']
1103        ) {
1104            MediaWikiServices::getInstance()->getWatchlistManager()->addWatchIgnoringRights(
1105                $performer->getUser(),
1106                Title::makeTitle( NS_USER, $target )
1107            );
1108        }
1109
1110        return true;
1111    }
1112
1113    /**
1114     * Get an array of suggested block durations from MediaWiki:Ipboptions
1115     * @todo FIXME: This uses a rather odd syntax for the options, should it be converted
1116     *     to the standard "**<duration>|<displayname>" format?
1117     * @deprecated since 1.42, use Language::getBlockDurations() instead,
1118     *     hard-deprecated since 1.43
1119     * @param Language|null $lang The language to get the durations in, or null to use
1120     *     the wiki's content language
1121     * @param bool $includeOther Whether to include the 'other' option in the list of
1122     *     suggestions
1123     * @return string[]
1124     */
1125    public static function getSuggestedDurations( ?Language $lang = null, $includeOther = true ) {
1126        wfDeprecated( __METHOD__, '1.42' );
1127        $lang ??= MediaWikiServices::getInstance()->getContentLanguage();
1128        return $lang->getBlockDurations( $includeOther );
1129    }
1130
1131    /**
1132     * Convert a submitted expiry time, which may be relative ("2 weeks", etc) or absolute
1133     * ("24 May 2034", etc), into an absolute timestamp we can put into the database.
1134     *
1135     * @deprecated since 1.36, use BlockUser::parseExpiryInput instead,
1136     *     hard-deprecated since 1.43
1137     *
1138     * @param string $expiry Whatever was typed into the form
1139     * @return string|bool Timestamp or 'infinity' or false on error.
1140     */
1141    public static function parseExpiryInput( $expiry ) {
1142        wfDeprecated( __METHOD__, '1.36' );
1143        return BlockUser::parseExpiryInput( $expiry );
1144    }
1145
1146    /**
1147     * Can we do an email block?
1148     *
1149     * @deprecated since 1.36, use BlockPermissionChecker service instead,
1150     *     hard-deprecated since 1.43
1151     * @param UserIdentity $user The sysop wanting to make a block
1152     * @return bool
1153     */
1154    public static function canBlockEmail( UserIdentity $user ) {
1155        wfDeprecated( __METHOD__, '1.36' );
1156        return MediaWikiServices::getInstance()
1157            ->getBlockPermissionCheckerFactory()
1158            ->newBlockPermissionChecker( null, User::newFromIdentity( $user ) )
1159            ->checkEmailPermissions();
1160    }
1161
1162    /**
1163     * Process the form on POST submission.
1164     * @param array $data
1165     * @param HTMLForm|null $form
1166     * @return bool|string|array|Status As documented for HTMLForm::trySubmit.
1167     */
1168    public function onSubmit( array $data, ?HTMLForm $form = null ) {
1169        return self::processFormInternal(
1170            $data,
1171            $this->getAuthority(),
1172            $this->blockUserFactory,
1173            $this->blockUtils
1174        );
1175    }
1176
1177    /**
1178     * Do something exciting on successful processing of the form, most likely to show a
1179     * confirmation message
1180     */
1181    public function onSuccess() {
1182        $out = $this->getOutput();
1183        $out->setPageTitleMsg( $this->msg( 'blockipsuccesssub' ) );
1184        $out->addWikiMsg( 'blockipsuccesstext', wfEscapeWikiText( $this->target ) );
1185    }
1186
1187    /**
1188     * Return an array of subpages beginning with $search that this special page will accept.
1189     *
1190     * @param string $search Prefix to search for
1191     * @param int $limit Maximum number of results to return (usually 10)
1192     * @param int $offset Number of results to skip (usually 0)
1193     * @return string[] Matching subpages
1194     */
1195    public function prefixSearchSubpages( $search, $limit, $offset ) {
1196        $search = $this->userNameUtils->getCanonical( $search );
1197        if ( !$search ) {
1198            // No prefix suggestion for invalid user
1199            return [];
1200        }
1201        // Autocomplete subpage as user list - public to allow caching
1202        return $this->userNamePrefixSearch
1203            ->search( UserNamePrefixSearch::AUDIENCE_PUBLIC, $search, $limit, $offset );
1204    }
1205
1206    /**
1207     * @inheritDoc
1208     */
1209    protected function getGroupName() {
1210        return 'users';
1211    }
1212}
1213
1214/** @deprecated class alias since 1.41 */
1215class_alias( SpecialBlock::class, 'SpecialBlock' );