]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - includes/specials/SpecialEmailuser.php
MediaWiki 1.30.2
[autoinstallsdev/mediawiki.git] / includes / specials / SpecialEmailuser.php
index 48088ded5ec5d31e68ffc062e5287890ecac45e4..249be7f17fa9a658005262d5276d3f8116830005 100644 (file)
 <?php
 /**
+ * Implements Special:Emailuser
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
  * @file
  * @ingroup SpecialPage
  */
+use MediaWiki\MediaWikiServices;
 
 /**
- *     Constructor for Special:Emailuser.
+ * A special page that allows users to send e-mails to other users
+ *
+ * @ingroup SpecialPage
  */
-function wfSpecialEmailuser( $par ) {
-       global $wgRequest, $wgUser, $wgOut;
+class SpecialEmailUser extends UnlistedSpecialPage {
+       protected $mTarget;
+
+       /**
+        * @var User|string $mTargetObj
+        */
+       protected $mTargetObj;
 
-       if ( !EmailUserForm::userEmailEnabled() ) {
-               $wgOut->showErrorPage( 'nosuchspecialpage', 'nospecialpagetext' );
-               return;
+       public function __construct() {
+               parent::__construct( 'Emailuser' );
        }
 
-       $action = $wgRequest->getVal( 'action' );
-       $target = isset($par) ? $par : $wgRequest->getVal( 'target' );
-       $targetUser = EmailUserForm::validateEmailTarget( $target );
-       
-       if ( !( $targetUser instanceof User ) ) {
-               $wgOut->showErrorPage( $targetUser.'title', $targetUser.'text' );
-               return;
+       public function doesWrites() {
+               return true;
+       }
+
+       public function getDescription() {
+               $target = self::getTarget( $this->mTarget, $this->getUser() );
+               if ( !$target instanceof User ) {
+                       return $this->msg( 'emailuser-title-notarget' )->text();
+               }
+
+               return $this->msg( 'emailuser-title-target', $target->getName() )->text();
        }
-       
-       $form = new EmailUserForm( $targetUser,
-                       $wgRequest->getText( 'wpText' ),
-                       $wgRequest->getText( 'wpSubject' ),
-                       $wgRequest->getBool( 'wpCCMe' ) );
-       if ( $action == 'success' ) {
-               $form->showSuccess();
-               return;
+
+       protected function getFormFields() {
+               $linkRenderer = $this->getLinkRenderer();
+               return [
+                       'From' => [
+                               'type' => 'info',
+                               'raw' => 1,
+                               'default' => $linkRenderer->makeLink(
+                                       $this->getUser()->getUserPage(),
+                                       $this->getUser()->getName()
+                               ),
+                               'label-message' => 'emailfrom',
+                               'id' => 'mw-emailuser-sender',
+                       ],
+                       'To' => [
+                               'type' => 'info',
+                               'raw' => 1,
+                               'default' => $linkRenderer->makeLink(
+                                       $this->mTargetObj->getUserPage(),
+                                       $this->mTargetObj->getName()
+                               ),
+                               'label-message' => 'emailto',
+                               'id' => 'mw-emailuser-recipient',
+                       ],
+                       'Target' => [
+                               'type' => 'hidden',
+                               'default' => $this->mTargetObj->getName(),
+                       ],
+                       'Subject' => [
+                               'type' => 'text',
+                               'default' => $this->msg( 'defemailsubject',
+                                       $this->getUser()->getName() )->inContentLanguage()->text(),
+                               'label-message' => 'emailsubject',
+                               'maxlength' => 200,
+                               'size' => 60,
+                               'required' => true,
+                       ],
+                       'Text' => [
+                               'type' => 'textarea',
+                               'rows' => 20,
+                               'cols' => 80,
+                               'label-message' => 'emailmessage',
+                               'required' => true,
+                       ],
+                       'CCMe' => [
+                               'type' => 'check',
+                               'label-message' => 'emailccme',
+                               'default' => $this->getUser()->getBoolOption( 'ccmeonemails' ),
+                       ],
+               ];
        }
-                                       
-       $error = EmailUserForm::getPermissionsError( $wgUser, $wgRequest->getVal( 'wpEditToken' ) );
-       if ( $error ) {
+
+       public function execute( $par ) {
+               $out = $this->getOutput();
+               $out->addModuleStyles( 'mediawiki.special' );
+
+               $this->mTarget = is_null( $par )
+                       ? $this->getRequest()->getVal( 'wpTarget', $this->getRequest()->getVal( 'target', '' ) )
+                       : $par;
+
+               // This needs to be below assignment of $this->mTarget because
+               // getDescription() needs it to determine the correct page title.
+               $this->setHeaders();
+               $this->outputHeader();
+
+               // error out if sending user cannot do this
+               $error = self::getPermissionsError(
+                       $this->getUser(),
+                       $this->getRequest()->getVal( 'wpEditToken' ),
+                       $this->getConfig()
+               );
+
                switch ( $error ) {
+                       case null:
+                               # Wahey!
+                               break;
+                       case 'badaccess':
+                               throw new PermissionsError( 'sendemail' );
                        case 'blockedemailuser':
-                               $wgOut->blockedPage();
-                               return;
+                               throw new UserBlockedError( $this->getUser()->mBlock );
                        case 'actionthrottledtext':
-                               $wgOut->rateLimited();
-                               return;
-                       case 'sessionfailure':
-                               $form->showForm();
-                               return;
+                               throw new ThrottledError;
                        case 'mailnologin':
-                               $wgOut->showErrorPage( 'mailnologin', 'mailnologintext' );
-                               return;
+                       case 'usermaildisabled':
+                               throw new ErrorPageError( $error, "{$error}text" );
                        default:
-                               // It's a hook error
+                               # It's a hook error
                                list( $title, $msg, $params ) = $error;
-                               $wgOut->showErrorPage( $title, $msg, $params );
-                               return;
-                               
+                               throw new ErrorPageError( $title, $msg, $params );
                }
-       }       
-       
-       if ( "submit" == $action && $wgRequest->wasPosted() ) {
-               $result = $form->doSubmit();
-               
-               if ( !is_null( $result ) ) {
-                       $wgOut->addHTML( wfMsg( "usermailererror" ) .
-                                       ' ' . htmlspecialchars( $result->getMessage() ) );
-               } else {
-                       $titleObj = SpecialPage::getTitleFor( "Emailuser" );
-                       $encTarget = wfUrlencode( $form->getTarget()->getName() );
-                       $wgOut->redirect( $titleObj->getFullURL( "target={$encTarget}&action=success" ) );
+               // Got a valid target user name? Else ask for one.
+               $ret = self::getTarget( $this->mTarget, $this->getUser() );
+               if ( !$ret instanceof User ) {
+                       if ( $this->mTarget != '' ) {
+                               // Messages used here: notargettext, noemailtext, nowikiemailtext
+                               $ret = ( $ret == 'notarget' ) ? 'emailnotarget' : ( $ret . 'text' );
+                               $out->wrapWikiMsg( "<p class='error'>$1</p>", $ret );
+                       }
+                       $out->addHTML( $this->userForm( $this->mTarget ) );
+
+                       return;
                }
-       } else {
-               $form->showForm();
-       }
-}
 
-/**
- * Implements the Special:Emailuser web interface, and invokes userMailer for sending the email message.
- * @ingroup SpecialPage
- */
-class EmailUserForm {
+               $this->mTargetObj = $ret;
 
-       var $target;
-       var $text, $subject;
-       var $cc_me;     // Whether user requested to be sent a separate copy of their email.
+               // Set the 'relevant user' in the skin, so it displays links like Contributions,
+               // User logs, UserRights, etc.
+               $this->getSkin()->setRelevantUser( $this->mTargetObj );
 
-       /**
-        * @param User $target
-        */
-       function EmailUserForm( $target, $text, $subject, $cc_me ) {
-               $this->target = $target;
-               $this->text = $text;
-               $this->subject = $subject;
-               $this->cc_me = $cc_me;
+               $context = new DerivativeContext( $this->getContext() );
+               $context->setTitle( $this->getPageTitle() ); // Remove subpage
+               $form = new HTMLForm( $this->getFormFields(), $context );
+               // By now we are supposed to be sure that $this->mTarget is a user name
+               $form->addPreText( $this->msg( 'emailpagetext', $this->mTarget )->parse() );
+               $form->setSubmitTextMsg( 'emailsend' );
+               $form->setSubmitCallback( [ __CLASS__, 'uiSubmit' ] );
+               $form->setWrapperLegendMsg( 'email-legend' );
+               $form->loadData();
+
+               if ( !Hooks::run( 'EmailUserForm', [ &$form ] ) ) {
+                       return;
+               }
+
+               $result = $form->show();
+
+               if ( $result === true || ( $result instanceof Status && $result->isGood() ) ) {
+                       $out->setPageTitle( $this->msg( 'emailsent' ) );
+                       $out->addWikiMsg( 'emailsenttext', $this->mTarget );
+                       $out->returnToMain( false, $this->mTargetObj->getUserPage() );
+               }
        }
 
-       function showForm() {
-               global $wgOut, $wgUser;
-               $skin = $wgUser->getSkin();
+       /**
+        * Validate target User
+        *
+        * @param string $target Target user name
+        * @param User|null $sender User sending the email
+        * @return User|string User object on success or a string on error
+        */
+       public static function getTarget( $target, User $sender = null ) {
+               if ( $sender === null ) {
+                       wfDeprecated( __METHOD__ . ' without specifying the sending user', '1.30' );
+               }
 
-               $wgOut->setPagetitle( wfMsg( "emailpage" ) );
-               $wgOut->addWikiMsg( "emailpagetext" );
+               if ( $target == '' ) {
+                       wfDebug( "Target is empty.\n" );
 
-               if ( $this->subject === "" ) {
-                       $this->subject = wfMsgExt( 'defemailsubject', array( 'content', 'parsemag' ) );
+                       return 'notarget';
                }
 
-               $titleObj = SpecialPage::getTitleFor( "Emailuser" );
-               $action = $titleObj->getLocalURL( "target=" .
-                       urlencode( $this->target->getName() ) . "&action=submit" );
-
-               $wgOut->addHTML(  
-                       Xml::openElement( 'form', array( 'method' => 'post', 'action' => $action, 'id' => 'emailuser' ) ) .
-                       Xml::openElement( 'fieldset' ) .
-                       Xml::element( 'legend', null, wfMsgExt( 'email-legend', 'parsemag' ) ) .
-                       Xml::openElement( 'table', array( 'class' => 'mw-emailuser-table' ) ) .
-                       "<tr>
-                               <td class='mw-label'>" .
-                                       Xml::label( wfMsg( 'emailfrom' ), 'emailfrom' ) .
-                               "</td>
-                               <td class='mw-input' id='mw-emailuser-sender'>" .
-                                       $skin->link( $wgUser->getUserPage(), htmlspecialchars( $wgUser->getName() ) ) .
-                               "</td>
-                       </tr>
-                       <tr>
-                               <td class='mw-label'>" .
-                                       Xml::label( wfMsg( 'emailto' ), 'emailto' ) .
-                               "</td>
-                               <td class='mw-input' id='mw-emailuser-recipient'>" .
-                                       $skin->link( $this->target->getUserPage(), htmlspecialchars( $this->target->getName() ) ) .
-                               "</td>
-                       </tr>
-                       <tr>
-                               <td class='mw-label'>" .
-                                       Xml::label( wfMsg( 'emailsubject' ), 'wpSubject' ) .
-                               "</td>
-                               <td class='mw-input'>" .
-                                       Xml::input( 'wpSubject', 60, $this->subject, array( 'type' => 'text', 'maxlength' => 200 ) ) .
-                               "</td>
-                       </tr>
-                       <tr>
-                               <td class='mw-label'>" .
-                                       Xml::label( wfMsg( 'emailmessage' ), 'wpText' ) .
-                               "</td>
-                               <td class='mw-input'>" .
-                                       Xml::textarea( 'wpText', $this->text, 80, 20, array( 'id' => 'wpText' ) ) .
-                               "</td>
-                       </tr>
-                       <tr>
-                               <td></td>
-                               <td class='mw-input'>" .
-                                       Xml::checkLabel( wfMsg( 'emailccme' ), 'wpCCMe', 'wpCCMe', $wgUser->getBoolOption( 'ccmeonemails' ) ) .
-                               "</td>
-                       </tr>
-                       <tr>
-                               <td></td>
-                               <td class='mw-submit'>" .
-                                       Xml::submitButton( wfMsg( 'emailsend' ), array( 'name' => 'wpSend', 'accesskey' => 's' ) ) .
-                               "</td>
-                       </tr>" .
-                       Xml::hidden( 'wpEditToken', $wgUser->editToken() ) .
-                       Xml::closeElement( 'table' ) .
-                       Xml::closeElement( 'fieldset' ) .
-                       Xml::closeElement( 'form' )
-               );
+               $nu = User::newFromName( $target );
+               $error = self::validateTarget( $nu, $sender );
+
+               return $error ? $error : $nu;
        }
 
-       /*
-        * Really send a mail. Permissions should have been checked using 
-        * EmailUserForm::getPermissionsError. It is probably also a good idea to
-        * check the edit token and ping limiter in advance.
+       /**
+        * Validate target User
+        *
+        * @param User $target Target user
+        * @param User|null $sender User sending the email
+        * @return string Error message or empty string if valid.
+        * @since 1.30
         */
-       function doSubmit() {
-               global $wgUser, $wgUserEmailUseReplyTo, $wgSiteName;
+       public static function validateTarget( $target, User $sender = null ) {
+               if ( $sender === null ) {
+                       wfDeprecated( __METHOD__ . ' without specifying the sending user', '1.30' );
+               }
 
-               $to = new MailAddress( $this->target );
-               $from = new MailAddress( $wgUser );
-               $subject = $this->subject;
+               if ( !$target instanceof User || !$target->getId() ) {
+                       wfDebug( "Target is invalid user.\n" );
 
-               // Add a standard footer and trim up trailing newlines
-               $this->text = rtrim($this->text) . "\n\n-- \n" . wfMsgExt( 'emailuserfooter',
-                       array( 'content', 'parsemag' ), array( $from->name, $to->name ) );
-               
-               if( wfRunHooks( 'EmailUser', array( &$to, &$from, &$subject, &$this->text ) ) ) {
-
-                       if( $wgUserEmailUseReplyTo ) {
-                               // Put the generic wiki autogenerated address in the From:
-                               // header and reserve the user for Reply-To.
-                               //
-                               // This is a bit ugly, but will serve to differentiate
-                               // wiki-borne mails from direct mails and protects against
-                               // SPF and bounce problems with some mailers (see below).
-                               global $wgPasswordSender;
-                               $mailFrom = new MailAddress( $wgPasswordSender );
-                               $replyTo = $from;
-                       } else {
-                               // Put the sending user's e-mail address in the From: header.
-                               //
-                               // This is clean-looking and convenient, but has issues.
-                               // One is that it doesn't as clearly differentiate the wiki mail
-                               // from "directly" sent mails.
-                               //
-                               // Another is that some mailers (like sSMTP) will use the From
-                               // address as the envelope sender as well. For open sites this
-                               // can cause mails to be flunked for SPF violations (since the
-                               // wiki server isn't an authorized sender for various users'
-                               // domains) as well as creating a privacy issue as bounces
-                               // containing the recipient's e-mail address may get sent to
-                               // the sending user.
-                               $mailFrom = $from;
-                               $replyTo = null;
-                       }
-                       
-                       $mailResult = UserMailer::send( $to, $mailFrom, $subject, $this->text, $replyTo );
+                       return 'notarget';
+               } elseif ( !$target->isEmailConfirmed() ) {
+                       wfDebug( "User has no valid email.\n" );
 
-                       if( WikiError::isError( $mailResult ) ) {
-                               return $mailResult;
-                               
-                       } else {
+                       return 'noemail';
+               } elseif ( !$target->canReceiveEmail() ) {
+                       wfDebug( "User does not allow user emails.\n" );
 
-                               // if the user requested a copy of this mail, do this now,
-                               // unless they are emailing themselves, in which case one copy of the message is sufficient.
-                               if ($this->cc_me && $to != $from) {
-                                       $cc_subject = wfMsg('emailccsubject', $this->target->getName(), $subject);
-                                       if( wfRunHooks( 'EmailUser', array( &$from, &$from, &$cc_subject, &$this->text ) ) ) {
-                                               $ccResult = UserMailer::send( $from, $from, $cc_subject, $this->text );
-                                               if( WikiError::isError( $ccResult ) ) {
-                                                       // At this stage, the user's CC mail has failed, but their
-                                                       // original mail has succeeded. It's unlikely, but still, what to do?
-                                                       // We can either show them an error, or we can say everything was fine,
-                                                       // or we can say we sort of failed AND sort of succeeded. Of these options,
-                                                       // simply saying there was an error is probably best.
-                                                       return $ccResult;
-                                               }
-                                       }
-                               }
+                       return 'nowikiemail';
+               } elseif ( $sender !== null ) {
+                       $blacklist = $target->getOption( 'email-blacklist', [] );
+                       if ( $blacklist ) {
+                               $lookup = CentralIdLookup::factory();
+                               $senderId = $lookup->centralIdFromLocalUser( $sender );
+                               if ( $senderId !== 0 && in_array( $senderId, $blacklist ) ) {
+                                       wfDebug( "User does not allow user emails from this user.\n" );
 
-                               wfRunHooks( 'EmailUserComplete', array( $to, $from, $subject, $this->text ) );
-                               return;
+                                       return 'nowikiemail';
+                               }
                        }
                }
-       }
-
-       function showSuccess( &$user = null ) {
-               global $wgOut;
-               
-               if ( is_null($user) )
-                       $user = $this->target;
 
-               $wgOut->setPagetitle( wfMsg( "emailsent" ) );
-               $wgOut->addWikiMsg( 'emailsenttext' );
-
-               $wgOut->returnToMain( false, $user->getUserPage() );
-       }
-       
-       function getTarget() {
-               return $this->target;
+               return '';
        }
-       
-       static function userEmailEnabled() {
-               global $wgEnableEmail, $wgEnableUserEmail;
-               return $wgEnableEmail && $wgEnableUserEmail;
-               
-       }
-       static function validateEmailTarget ( $target ) {
-               if ( $target == "" ) {
-                       wfDebug( "Target is empty.\n" );
-                       return "notarget";
+
+       /**
+        * Check whether a user is allowed to send email
+        *
+        * @param User $user
+        * @param string $editToken Edit token
+        * @param Config $config optional for backwards compatibility
+        * @return string|null Null on success or string on error
+        */
+       public static function getPermissionsError( $user, $editToken, Config $config = null ) {
+               if ( $config === null ) {
+                       wfDebug( __METHOD__ . ' called without a Config instance passed to it' );
+                       $config = MediaWikiServices::getInstance()->getMainConfig();
                }
-       
-               $nt = Title::newFromURL( $target );
-               if ( is_null( $nt ) ) {
-                       wfDebug( "Target is invalid title.\n" );
-                       return "notarget";
+               if ( !$config->get( 'EnableEmail' ) || !$config->get( 'EnableUserEmail' ) ) {
+                       return 'usermaildisabled';
                }
-       
-               $nu = User::newFromName( $nt->getText() );
-               if( !$nu instanceof User || !$nu->getId() ) {
-                       wfDebug( "Target is invalid user.\n" );
-                       return "notarget";
-               } else if ( !$nu->isEmailConfirmed() ) {
-                       wfDebug( "User has no valid email.\n" );
-                       return "noemail";
-               } else if ( !$nu->canReceiveEmail() ) {
-                       wfDebug( "User does not allow user emails.\n" );
-                       return "nowikiemail";
+
+               // Run this before $user->isAllowed, to show appropriate message to anons (T160309)
+               if ( !$user->isEmailConfirmed() ) {
+                       return 'mailnologin';
                }
-               
-               return $nu;
-       }
-       static function getPermissionsError ( $user, $editToken ) {
-               if( !$user->canSendEmail() ) {
-                       wfDebug( "User can't send.\n" );
-                       // FIXME: this is also the error if user is in a group
-                       //        that is not allowed to send e-mail (no right
-                       //        'sendemail'). Error messages should probably
-                       //        be more fine grained.
-                       return "mailnologin";
+
+               if ( !$user->isAllowed( 'sendemail' ) ) {
+                       return 'badaccess';
                }
-               
-               if( $user->isBlockedFromEmailuser() ) {
+
+               if ( $user->isBlockedFromEmailuser() ) {
                        wfDebug( "User is blocked from sending e-mail.\n" );
+
                        return "blockedemailuser";
                }
-               
-               if( $user->pingLimiter( 'emailuser' ) ) {
-                       wfDebug( "Ping limiter triggered.\n" ); 
+
+               if ( $user->pingLimiter( 'emailuser' ) ) {
+                       wfDebug( "Ping limiter triggered.\n" );
+
                        return 'actionthrottledtext';
                }
-               
-               $hookErr = null;
-               wfRunHooks( 'EmailUserPermissionsErrors', array( $user, $editToken, &$hookErr ) );
-               
-               if ($hookErr) {
+
+               $hookErr = false;
+
+               Hooks::run( 'UserCanSendEmail', [ &$user, &$hookErr ] );
+               Hooks::run( 'EmailUserPermissionsErrors', [ $user, $editToken, &$hookErr ] );
+
+               if ( $hookErr ) {
                        return $hookErr;
                }
-               
-               if( !$user->matchEditToken( $editToken ) ) {
-                       wfDebug( "Matching edit token failed.\n" );
-                       return 'sessionfailure';
+
+               return null;
+       }
+
+       /**
+        * Form to ask for target user name.
+        *
+        * @param string $name User name submitted.
+        * @return string Form asking for user name.
+        */
+       protected function userForm( $name ) {
+               $this->getOutput()->addModules( 'mediawiki.userSuggest' );
+               $string = Html::openElement(
+                               'form',
+                               [ 'method' => 'get', 'action' => wfScript(), 'id' => 'askusername' ]
+                       ) .
+                       Html::hidden( 'title', $this->getPageTitle()->getPrefixedText() ) .
+                       Html::openElement( 'fieldset' ) .
+                       Html::rawElement( 'legend', null, $this->msg( 'emailtarget' )->parse() ) .
+                       Html::label(
+                               $this->msg( 'emailusername' )->text(),
+                               'emailusertarget'
+                       ) . '&#160;' .
+                       Html::input(
+                               'target',
+                               $name,
+                               'text',
+                               [
+                                       'id' => 'emailusertarget',
+                                       'class' => 'mw-autocomplete-user', // used by mediawiki.userSuggest
+                                       'autofocus' => true,
+                                       'size' => 30,
+                               ]
+                       ) .
+                       ' ' .
+                       Html::submitButton( $this->msg( 'emailusernamesubmit' )->text(), [] ) .
+                       Html::closeElement( 'fieldset' ) .
+                       Html::closeElement( 'form' ) . "\n";
+
+               return $string;
+       }
+
+       /**
+        * Submit callback for an HTMLForm object, will simply call submit().
+        *
+        * @since 1.20
+        * @param array $data
+        * @param HTMLForm $form
+        * @return Status|bool
+        */
+       public static function uiSubmit( array $data, HTMLForm $form ) {
+               return self::submit( $data, $form->getContext() );
+       }
+
+       /**
+        * Really send a mail. Permissions should have been checked using
+        * getPermissionsError(). It is probably also a good
+        * idea to check the edit token and ping limiter in advance.
+        *
+        * @param array $data
+        * @param IContextSource $context
+        * @return Status|bool
+        */
+       public static function submit( array $data, IContextSource $context ) {
+               $config = $context->getConfig();
+
+               $target = self::getTarget( $data['Target'], $context->getUser() );
+               if ( !$target instanceof User ) {
+                       // Messages used here: notargettext, noemailtext, nowikiemailtext
+                       return Status::newFatal( $target . 'text' );
+               }
+
+               $to = MailAddress::newFromUser( $target );
+               $from = MailAddress::newFromUser( $context->getUser() );
+               $subject = $data['Subject'];
+               $text = $data['Text'];
+
+               // Add a standard footer and trim up trailing newlines
+               $text = rtrim( $text ) . "\n\n-- \n";
+               $text .= $context->msg( 'emailuserfooter',
+                       $from->name, $to->name )->inContentLanguage()->text();
+
+               $error = false;
+               if ( !Hooks::run( 'EmailUser', [ &$to, &$from, &$subject, &$text, &$error ] ) ) {
+                       if ( $error instanceof Status ) {
+                               return $error;
+                       } elseif ( $error === false || $error === '' || $error === [] ) {
+                               // Possibly to tell HTMLForm to pretend there was no submission?
+                               return false;
+                       } elseif ( $error === true ) {
+                               // Hook sent the mail itself and indicates success?
+                               return Status::newGood();
+                       } elseif ( is_array( $error ) ) {
+                               $status = Status::newGood();
+                               foreach ( $error as $e ) {
+                                       $status->fatal( $e );
+                               }
+                               return $status;
+                       } elseif ( $error instanceof MessageSpecifier ) {
+                               return Status::newFatal( $error );
+                       } else {
+                               // Ugh. Either a raw HTML string, or something that's supposed
+                               // to be treated like one.
+                               $type = is_object( $error ) ? get_class( $error ) : gettype( $error );
+                               wfDeprecated( "EmailUser hook returning a $type as \$error", '1.29' );
+                               return Status::newFatal( new ApiRawMessage(
+                                       [ '$1', Message::rawParam( (string)$error ) ], 'hookaborted'
+                               ) );
+                       }
+               }
+
+               if ( $config->get( 'UserEmailUseReplyTo' ) ) {
+                       /**
+                        * Put the generic wiki autogenerated address in the From:
+                        * header and reserve the user for Reply-To.
+                        *
+                        * This is a bit ugly, but will serve to differentiate
+                        * wiki-borne mails from direct mails and protects against
+                        * SPF and bounce problems with some mailers (see below).
+                        */
+                       $mailFrom = new MailAddress( $config->get( 'PasswordSender' ),
+                               wfMessage( 'emailsender' )->inContentLanguage()->text() );
+                       $replyTo = $from;
+               } else {
+                       /**
+                        * Put the sending user's e-mail address in the From: header.
+                        *
+                        * This is clean-looking and convenient, but has issues.
+                        * One is that it doesn't as clearly differentiate the wiki mail
+                        * from "directly" sent mails.
+                        *
+                        * Another is that some mailers (like sSMTP) will use the From
+                        * address as the envelope sender as well. For open sites this
+                        * can cause mails to be flunked for SPF violations (since the
+                        * wiki server isn't an authorized sender for various users'
+                        * domains) as well as creating a privacy issue as bounces
+                        * containing the recipient's e-mail address may get sent to
+                        * the sending user.
+                        */
+                       $mailFrom = $from;
+                       $replyTo = null;
+               }
+
+               $status = UserMailer::send( $to, $mailFrom, $subject, $text, [
+                       'replyTo' => $replyTo,
+               ] );
+
+               if ( !$status->isGood() ) {
+                       return $status;
+               } else {
+                       // if the user requested a copy of this mail, do this now,
+                       // unless they are emailing themselves, in which case one
+                       // copy of the message is sufficient.
+                       if ( $data['CCMe'] && $to != $from ) {
+                               $ccTo = $from;
+                               $ccFrom = $from;
+                               $ccSubject = $context->msg( 'emailccsubject' )->rawParams(
+                                       $target->getName(), $subject )->text();
+                               $ccText = $text;
+
+                               Hooks::run( 'EmailUserCC', [ &$ccTo, &$ccFrom, &$ccSubject, &$ccText ] );
+
+                               if ( $config->get( 'UserEmailUseReplyTo' ) ) {
+                                       $mailFrom = new MailAddress(
+                                               $config->get( 'PasswordSender' ),
+                                               wfMessage( 'emailsender' )->inContentLanguage()->text()
+                                       );
+                                       $replyTo = $ccFrom;
+                               } else {
+                                       $mailFrom = $ccFrom;
+                                       $replyTo = null;
+                               }
+
+                               $ccStatus = UserMailer::send(
+                                       $ccTo, $mailFrom, $ccSubject, $ccText, [
+                                               'replyTo' => $replyTo,
+                               ] );
+                               $status->merge( $ccStatus );
+                       }
+
+                       Hooks::run( 'EmailUserComplete', [ $to, $from, $subject, $text ] );
+
+                       return $status;
+               }
+       }
+
+       /**
+        * Return an array of subpages beginning with $search that this special page will accept.
+        *
+        * @param string $search Prefix to search for
+        * @param int $limit Maximum number of results to return (usually 10)
+        * @param int $offset Number of results to skip (usually 0)
+        * @return string[] Matching subpages
+        */
+       public function prefixSearchSubpages( $search, $limit, $offset ) {
+               $user = User::newFromName( $search );
+               if ( !$user ) {
+                       // No prefix suggestion for invalid user
+                       return [];
                }
+               // Autocomplete subpage as user list - public to allow caching
+               return UserNamePrefixSearch::search( 'public', $search, $limit, $offset );
        }
-       
-       static function newFromURL( $target, $text, $subject, $cc_me )
-       {
-               $nt = Title::newFromURL( $target );
-               $nu = User::newFromName( $nt->getText() );
-               return new EmailUserForm( $nu, $text, $subject, $cc_me );
+
+       protected function getGroupName() {
+               return 'users';
        }
 }