includes/UserMailer.php

   1 <?php
   2 /**
   3  * Classes used to send e-mails
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @author <brion@pobox.com>
  22  * @author <mail@tgries.de>
  23  * @author Tim Starling
  24  */
  25
  26
  27 /**
  28  * Stores a single person's name and email address.
  29  * These are passed in via the constructor, and will be returned in SMTP
  30  * header format when requested.
  31  */
  32 class MailAddress {
  33         /**
  34          * @param $address Mixed: string with an email address, or a User object
  35          * @param $name String: human-readable name if a string address is given
  36          * @param $realName String: human-readable real name if a string address is given
  37          */
  38         function __construct( $address, $name = null, $realName = null ) {
  39                 if( is_object( $address ) && $address instanceof User ) {
  40                         $this->address = $address->getEmail();
  41                         $this->name = $address->getName();
  42                         $this->realName = $address->getRealName();
  43                 } else {
  44                         $this->address = strval( $address );
  45                         $this->name = strval( $name );
  46                         $this->realName = strval( $realName );
  47                 }
  48         }
  49
  50         /**
  51          * Return formatted and quoted address to insert into SMTP headers
  52          * @return string
  53          */
  54         function toString() {
  55                 # PHP's mail() implementation under Windows is somewhat shite, and
  56                 # can't handle "Joe Bloggs <joe@bloggs.com>" format email addresses,
  57                 # so don't bother generating them
  58                 if( $this->name != '' && !wfIsWindows() ) {
  59                         global $wgEnotifUseRealName;
  60                         $name = ( $wgEnotifUseRealName && $this->realName ) ? $this->realName : $this->name;
  61                         $quoted = wfQuotedPrintable( $name );
  62                         if( strpos( $quoted, '.' ) !== false || strpos( $quoted, ',' ) !== false ) {
  63                                 $quoted = '"' . $quoted . '"';
  64                         }
  65                         return "$quoted <{$this->address}>";
  66                 } else {
  67                         return $this->address;
  68                 }
  69         }
  70
  71         function __toString() {
  72                 return $this->toString();
  73         }
  74 }
  75
  76
  77 /**
  78  * Collection of static functions for sending mail
  79  */
  80 class UserMailer {
  81         static $mErrorString;
  82
  83         /**
  84          * Send mail using a PEAR mailer
  85          */
  86         protected static function sendWithPear($mailer, $dest, $headers, $body)
  87         {
  88                 $mailResult = $mailer->send($dest, $headers, $body);
  89
  90                 # Based on the result return an error string,
  91                 if( PEAR::isError( $mailResult ) ) {
  92                         wfDebug( "PEAR::Mail failed: " . $mailResult->getMessage() . "\n" );
  93                         return new WikiError( $mailResult->getMessage() );
  94                 } else {
  95                         return true;
  96                 }
  97         }
  98
  99         /**
 100          * This function will perform a direct (authenticated) login to
 101          * a SMTP Server to use for mail relaying if 'wgSMTP' specifies an
 102          * array of parameters. It requires PEAR:Mail to do that.
 103          * Otherwise it just uses the standard PHP 'mail' function.
 104          *
 105          * @param $to MailAddress: recipient's email (or an array of them)
 106          * @param $from MailAddress: sender's email
 107          * @param $subject String: email's subject.
 108          * @param $body String: email's text.
 109          * @param $replyto MailAddress: optional reply-to email (default: null).
 110          * @param $contentType String: optional custom Content-Type
 111          * @return mixed True on success, a WikiError object on failure.
 112          */
 113         static function send( $to, $from, $subject, $body, $replyto=null, $contentType=null ) {
 114                 global $wgSMTP, $wgOutputEncoding, $wgEnotifImpersonal;
 115                 global $wgEnotifMaxRecips, $wgAdditionalMailParams;
 116
 117                 if ( is_array( $to ) ) {
 118                         // This wouldn't be necessary if implode() worked on arrays of
 119                         // objects using __toString(). http://bugs.php.net/bug.php?id=36612
 120                         foreach( $to as $t ) {
 121                                 $emails .= $t->toString() . ",";
 122                         }
 123                         $emails = rtrim( $emails, ',' );
 124                         wfDebug( __METHOD__.': sending mail to ' . $emails . "\n" );
 125                 } else {
 126                         wfDebug( __METHOD__.': sending mail to ' . implode( ',', array( $to->toString() ) ) . "\n" );
 127                 }
 128
 129                 if (is_array( $wgSMTP )) {
 130                         $found = false;
 131                         $pathArray = explode( PATH_SEPARATOR, get_include_path() );
 132                         foreach ( $pathArray as $path ) {
 133                                 if ( file_exists( $path . DIRECTORY_SEPARATOR . 'Mail.php' ) ) {
 134                                         $found = true;
 135                                         break;
 136                                 }
 137                         }
 138                         if ( !$found ) {
 139                                 throw new MWException( 'PEAR mail package is not installed' );
 140                         }
 141                         require_once( 'Mail.php' );
 142
 143                         $msgid = str_replace(" ", "_", microtime());
 144                         if (function_exists('posix_getpid'))
 145                                 $msgid .= '.' . posix_getpid();
 146
 147                         if (is_array($to)) {
 148                                 $dest = array();
 149                                 foreach ($to as $u)
 150                                         $dest[] = $u->address;
 151                         } else
 152                                 $dest = $to->address;
 153
 154                         $headers['From'] = $from->toString();
 155
 156                         if ($wgEnotifImpersonal) {
 157                                 $headers['To'] = 'undisclosed-recipients:;';
 158                         }
 159                         else {
 160                                 $headers['To'] = implode( ", ", (array )$dest );
 161                         }
 162
 163                         if ( $replyto ) {
 164                                 $headers['Reply-To'] = $replyto->toString();
 165                         }
 166                         $headers['Subject'] = wfQuotedPrintable( $subject );
 167                         $headers['Date'] = date( 'r' );
 168                         $headers['MIME-Version'] = '1.0';
 169                         $headers['Content-type'] = (is_null($contentType) ?
 170                                         'text/plain; charset='.$wgOutputEncoding : $contentType);
 171                         $headers['Content-transfer-encoding'] = '8bit';
 172                         $headers['Message-ID'] = "<$msgid@" . $wgSMTP['IDHost'] . '>'; // FIXME
 173                         $headers['X-Mailer'] = 'MediaWiki mailer';
 174
 175                         wfSuppressWarnings();
 176
 177                         // Create the mail object using the Mail::factory method
 178                         $mail_object =& Mail::factory('smtp', $wgSMTP);
 179                         if( PEAR::isError( $mail_object ) ) {
 180                                 wfDebug( "PEAR::Mail factory failed: " . $mail_object->getMessage() . "\n" );
 181                                 wfRestoreWarnings();
 182                                 return new WikiError( $mail_object->getMessage() );
 183                         }
 184
 185                         wfDebug( "Sending mail via PEAR::Mail to $dest\n" );
 186                         $chunks = array_chunk( (array)$dest, $wgEnotifMaxRecips );
 187                         foreach ($chunks as $chunk) {
 188                                 $e = self::sendWithPear($mail_object, $chunk, $headers, $body);
 189                                 if( WikiError::isError( $e ) ) {
 190                                         wfRestoreWarnings();
 191                                         return $e;
 192                                 }
 193                         }
 194                         wfRestoreWarnings();
 195                 } else  {
 196                         # In the following $headers = expression we removed "Reply-To: {$from}\r\n" , because it is treated differently
 197                         # (fifth parameter of the PHP mail function, see some lines below)
 198
 199                         # Line endings need to be different on Unix and Windows due to
 200                         # the bug described at http://trac.wordpress.org/ticket/2603
 201                         if ( wfIsWindows() ) {
 202                                 $body = str_replace( "\n", "\r\n", $body );
 203                                 $endl = "\r\n";
 204                         } else {
 205                                 $endl = "\n";
 206                         }
 207                         $ctype = (is_null($contentType) ?
 208                                         'text/plain; charset='.$wgOutputEncoding : $contentType);
 209                         $headers =
 210                                 "MIME-Version: 1.0$endl" .
 211                                 "Content-type: $ctype$endl" .
 212                                 "Content-Transfer-Encoding: 8bit$endl" .
 213                                 "X-Mailer: MediaWiki mailer$endl".
 214                                 'From: ' . $from->toString();
 215                         if ($replyto) {
 216                                 $headers .= "{$endl}Reply-To: " . $replyto->toString();
 217                         }
 218
 219                         wfDebug( "Sending mail via internal mail() function\n" );
 220
 221                         self::$mErrorString = '';
 222                         $html_errors = ini_get( 'html_errors' );
 223                         ini_set( 'html_errors', '0' );
 224                         set_error_handler( array( 'UserMailer', 'errorHandler' ) );
 225
 226                         if (is_array($to)) {
 227                                 foreach ($to as $recip) {
 228                                         $sent = mail( $recip->toString(), wfQuotedPrintable( $subject ), $body, $headers, $wgAdditionalMailParams );
 229                                 }
 230                         } else {
 231                                 $sent = mail( $to->toString(), wfQuotedPrintable( $subject ), $body, $headers, $wgAdditionalMailParams );
 232                         }
 233
 234                         restore_error_handler();
 235                         ini_set( 'html_errors', $html_errors );
 236
 237                         if ( self::$mErrorString ) {
 238                                 wfDebug( "Error sending mail: " . self::$mErrorString . "\n" );
 239                                 return new WikiError( self::$mErrorString );
 240                         } elseif (! $sent ) {
 241                                 //mail function only tells if there's an error
 242                                 wfDebug( "Error sending mail\n" );
 243                                 return new WikiError( 'mail() failed' );
 244                         } else {
 245                                 return true;
 246                         }
 247                 }
 248         }
 249
 250         /**
 251          * Set the mail error message in self::$mErrorString
 252          *
 253          * @param $code Integer: error number
 254          * @param $string String: error message
 255          */
 256         static function errorHandler( $code, $string ) {
 257                 self::$mErrorString = preg_replace( '/^mail\(\)(\s*\[.*?\])?: /', '', $string );
 258         }
 259
 260         /**
 261          * Converts a string into a valid RFC 822 "phrase", such as is used for the sender name
 262          */
 263         static function rfc822Phrase( $phrase ) {
 264                 $phrase = strtr( $phrase, array( "\r" => '', "\n" => '', '"' => '' ) );
 265                 return '"' . $phrase . '"';
 266         }
 267 }
 268
 269 /**
 270  * This module processes the email notifications when the current page is
 271  * changed. It looks up the table watchlist to find out which users are watching
 272  * that page.
 273  *
 274  * The current implementation sends independent emails to each watching user for
 275  * the following reason:
 276  *
 277  * - Each watching user will be notified about the page edit time expressed in
 278  * his/her local time (UTC is shown additionally). To achieve this, we need to
 279  * find the individual timeoffset of each watching user from the preferences..
 280  *
 281  * Suggested improvement to slack down the number of sent emails: We could think
 282  * of sending out bulk mails (bcc:user1,user2...) for all these users having the
 283  * same timeoffset in their preferences.
 284  *
 285  * Visit the documentation pages under http://meta.wikipedia.com/Enotif
 286  *
 287  *
 288  */
 289 class EmailNotification {
 290         protected $to, $subject, $body, $replyto, $from;
 291         protected $user, $title, $timestamp, $summary, $minorEdit, $oldid, $composed_common, $editor;
 292         protected $mailTargets = array();
 293
 294         /**
 295          * Send emails corresponding to the user $editor editing the page $title.
 296          * Also updates wl_notificationtimestamp.
 297          *
 298          * May be deferred via the job queue.
 299          *
 300          * @param $editor User object
 301          * @param $title Title object
 302          * @param $timestamp
 303          * @param $summary
 304          * @param $minorEdit
 305          * @param $oldid (default: false)
 306          */
 307         function notifyOnPageChange($editor, $title, $timestamp, $summary, $minorEdit, $oldid = false) {
 308                 global $wgEnotifUseJobQ, $wgEnotifWatchlist, $wgShowUpdatedMarker;
 309
 310                 if ($title->getNamespace() < 0)
 311                         return;
 312
 313                 // Build a list of users to notfiy
 314                 $watchers = array();
 315                 if ($wgEnotifWatchlist || $wgShowUpdatedMarker) {
 316                         $dbw = wfGetDB( DB_MASTER );
 317                         $res = $dbw->select( array( 'watchlist' ),
 318                                 array( 'wl_user' ),
 319                                 array(
 320                                         'wl_title' => $title->getDBkey(),
 321                                         'wl_namespace' => $title->getNamespace(),
 322                                         'wl_user != ' . intval( $editor->getID() ),
 323                                         'wl_notificationtimestamp IS NULL',
 324                                 ), __METHOD__
 325                         );
 326                         foreach ( $res as $row ) {
 327                                 $watchers[] = intval( $row->wl_user );
 328                         }
 329                         if ($watchers) {
 330                                 // Update wl_notificationtimestamp for all watching users except
 331                                 // the editor
 332                                 $dbw->begin();
 333                                 $dbw->update( 'watchlist',
 334                                         array( /* SET */
 335                                                 'wl_notificationtimestamp' => $dbw->timestamp( $timestamp )
 336                                         ), array( /* WHERE */
 337                                                 'wl_title' => $title->getDBkey(),
 338                                                 'wl_namespace' => $title->getNamespace(),
 339                                                 'wl_user' => $watchers
 340                                         ), __METHOD__
 341                                 );
 342                                 $dbw->commit();
 343                         }
 344                 }
 345
 346                 if ($wgEnotifUseJobQ) {
 347                         $params = array(
 348                                 "editor" => $editor->getName(),
 349                                 "editorID" => $editor->getID(),
 350                                 "timestamp" => $timestamp,
 351                                 "summary" => $summary,
 352                                 "minorEdit" => $minorEdit,
 353                                 "oldid" => $oldid,
 354                                 "watchers" => $watchers);
 355                         $job = new EnotifNotifyJob( $title, $params );
 356                         $job->insert();
 357                 } else {
 358                         $this->actuallyNotifyOnPageChange( $editor, $title, $timestamp, $summary, $minorEdit, $oldid, $watchers );
 359                 }
 360
 361         }
 362
 363         /*
 364          * Immediate version of notifyOnPageChange().
 365          *
 366          * Send emails corresponding to the user $editor editing the page $title.
 367          * Also updates wl_notificationtimestamp.
 368          *
 369          * @param $editor User object
 370          * @param $title Title object
 371          * @param $timestamp string Edit timestamp
 372          * @param $summary string Edit summary
 373          * @param $minorEdit bool
 374          * @param $oldid int Revision ID
 375          * @param $watchers array of user IDs
 376          */
 377         function actuallyNotifyOnPageChange($editor, $title, $timestamp, $summary, $minorEdit, $oldid, $watchers) {
 378                 # we use $wgPasswordSender as sender's address
 379                 global $wgEnotifWatchlist;
 380                 global $wgEnotifMinorEdits, $wgEnotifUserTalk;
 381
 382                 wfProfileIn( __METHOD__ );
 383
 384                 # The following code is only run, if several conditions are met:
 385                 # 1. EmailNotification for pages (other than user_talk pages) must be enabled
 386                 # 2. minor edits (changes) are only regarded if the global flag indicates so
 387
 388                 $isUserTalkPage = ($title->getNamespace() == NS_USER_TALK);
 389
 390                 $this->title = $title;
 391                 $this->timestamp = $timestamp;
 392                 $this->summary = $summary;
 393                 $this->minorEdit = $minorEdit;
 394                 $this->oldid = $oldid;
 395                 $this->editor = $editor;
 396                 $this->composed_common = false;
 397
 398                 $userTalkId = false;
 399
 400                 if ( !$minorEdit || ($wgEnotifMinorEdits && !$editor->isAllowed('nominornewtalk') ) ) {
 401                         if ( $wgEnotifUserTalk && $isUserTalkPage ) {
 402                                 $targetUser = User::newFromName( $title->getText() );
 403                                 if ( !$targetUser || $targetUser->isAnon() ) {
 404                                         wfDebug( __METHOD__.": user talk page edited, but user does not exist\n" );
 405                                 } elseif ( $targetUser->getId() == $editor->getId() ) {
 406                                         wfDebug( __METHOD__.": user edited their own talk page, no notification sent\n" );
 407                                 } elseif( $targetUser->getOption( 'enotifusertalkpages' ) ) {
 408                                         if( $targetUser->isEmailConfirmed() ) {
 409                                                 wfDebug( __METHOD__.": sending talk page update notification\n" );
 410                                                 $this->compose( $targetUser );
 411                                                 $userTalkId = $targetUser->getId();
 412                                         } else {
 413                                                 wfDebug( __METHOD__.": talk page owner doesn't have validated email\n" );
 414                                         }
 415                                 } else {
 416                                         wfDebug( __METHOD__.": talk page owner doesn't want notifications\n" );
 417                                 }
 418                         }
 419
 420                         if ( $wgEnotifWatchlist ) {
 421                                 // Send updates to watchers other than the current editor
 422                                 $userArray = UserArray::newFromIDs( $watchers );
 423                                 foreach ( $userArray as $watchingUser ) {
 424                                         if ( $watchingUser->getOption( 'enotifwatchlistpages' ) &&
 425                                                 ( !$minorEdit || $watchingUser->getOption('enotifminoredits') ) &&
 426                                                 $watchingUser->isEmailConfirmed() &&
 427                                                 $watchingUser->getID() != $userTalkId )
 428                                         {
 429                                                 $this->compose( $watchingUser );
 430                                         }
 431                                 }
 432                         }
 433                 }
 434
 435                 global $wgUsersNotifiedOnAllChanges;
 436                 foreach ( $wgUsersNotifiedOnAllChanges as $name ) {
 437                         $user = User::newFromName( $name );
 438                         $this->compose( $user );
 439                 }
 440
 441                 $this->sendMails();
 442                 wfProfileOut( __METHOD__ );
 443         }
 444
 445         /**
 446          * @private
 447          */
 448         function composeCommonMailtext() {
 449                 global $wgPasswordSender, $wgPasswordSenderName, $wgNoReplyAddress;
 450                 global $wgEnotifFromEditor, $wgEnotifRevealEditorAddress;
 451                 global $wgEnotifImpersonal, $wgEnotifUseRealName;
 452
 453                 $this->composed_common = true;
 454
 455                 $summary = ($this->summary == '') ? ' - ' : $this->summary;
 456                 $medit   = ($this->minorEdit) ? wfMsgForContent( 'minoredit' ) : '';
 457
 458                 # You as the WikiAdmin and Sysops can make use of plenty of
 459                 # named variables when composing your notification emails while
 460                 # simply editing the Meta pages
 461
 462                 $subject = wfMsgForContent( 'enotif_subject' );
 463                 $body    = wfMsgForContent( 'enotif_body' );
 464                 $from    = ''; /* fail safe */
 465                 $replyto = ''; /* fail safe */
 466                 $keys    = array();
 467
 468                 if( $this->oldid ) {
 469                         $difflink = $this->title->getFullUrl( 'diff=0&oldid=' . $this->oldid );
 470                         $keys['$NEWPAGE'] = wfMsgForContent( 'enotif_lastvisited', $difflink );
 471                         $keys['$OLDID']   = $this->oldid;
 472                         $keys['$CHANGEDORCREATED'] = wfMsgForContent( 'changed' );
 473                 } else {
 474                         $keys['$NEWPAGE'] = wfMsgForContent( 'enotif_newpagetext' );
 475                         # clear $OLDID placeholder in the message template
 476                         $keys['$OLDID']   = '';
 477                         $keys['$CHANGEDORCREATED'] = wfMsgForContent( 'created' );
 478                 }
 479
 480                 if ($wgEnotifImpersonal && $this->oldid) {
 481                         /*
 482                          * For impersonal mail, show a diff link to the last
 483                          * revision.
 484                          */
 485                         $keys['$NEWPAGE'] = wfMsgForContent('enotif_lastdiff',
 486                                         $this->title->getFullURL("oldid={$this->oldid}&diff=next"));
 487         }
 488
 489                 $body = strtr( $body, $keys );
 490                 $pagetitle = $this->title->getPrefixedText();
 491                 $keys['$PAGETITLE']          = $pagetitle;
 492                 $keys['$PAGETITLE_URL']      = $this->title->getFullUrl();
 493
 494                 $keys['$PAGEMINOREDIT']      = $medit;
 495                 $keys['$PAGESUMMARY']        = $summary;
 496                 $keys['$UNWATCHURL']         = $this->title->getFullUrl( 'action=unwatch' );
 497
 498                 $subject = strtr( $subject, $keys );
 499
 500                 # Reveal the page editor's address as REPLY-TO address only if
 501                 # the user has not opted-out and the option is enabled at the
 502                 # global configuration level.
 503                 $editor = $this->editor;
 504                 $name    = $wgEnotifUseRealName ? $editor->getRealName() : $editor->getName();
 505                 $adminAddress = new MailAddress( $wgPasswordSender, $wgPasswordSenderName );
 506                 $editorAddress = new MailAddress( $editor );
 507                 if( $wgEnotifRevealEditorAddress
 508                     && ( $editor->getEmail() != '' )
 509                     && $editor->getOption( 'enotifrevealaddr' ) ) {
 510                         if( $wgEnotifFromEditor ) {
 511                                 $from    = $editorAddress;
 512                         } else {
 513                                 $from    = $adminAddress;
 514                                 $replyto = $editorAddress;
 515                         }
 516                 } else {
 517                         $from    = $adminAddress;
 518                         $replyto = new MailAddress( $wgNoReplyAddress );
 519                 }
 520
 521                 if( $editor->isIP( $name ) ) {
 522                         #real anon (user:xxx.xxx.xxx.xxx)
 523                         $utext = wfMsgForContent('enotif_anon_editor', $name);
 524                         $subject = str_replace('$PAGEEDITOR', $utext, $subject);
 525                         $keys['$PAGEEDITOR']       = $utext;
 526                         $keys['$PAGEEDITOR_EMAIL'] = wfMsgForContent( 'noemailtitle' );
 527                 } else {
 528                         $subject = str_replace('$PAGEEDITOR', $name, $subject);
 529                         $keys['$PAGEEDITOR']          = $name;
 530                         $emailPage = SpecialPage::getSafeTitleFor( 'Emailuser', $name );
 531                         $keys['$PAGEEDITOR_EMAIL'] = $emailPage->getFullUrl();
 532                 }
 533                 $userPage = $editor->getUserPage();
 534                 $keys['$PAGEEDITOR_WIKI'] = $userPage->getFullUrl();
 535                 $body = strtr( $body, $keys );
 536                 $body = wordwrap( $body, 72 );
 537
 538                 # now save this as the constant user-independent part of the message
 539                 $this->from    = $from;
 540                 $this->replyto = $replyto;
 541                 $this->subject = $subject;
 542                 $this->body    = $body;
 543         }
 544
 545         /**
 546          * Compose a mail to a given user and either queue it for sending, or send it now,
 547          * depending on settings.
 548          *
 549          * Call sendMails() to send any mails that were queued.
 550          */
 551         function compose( $user ) {
 552                 global $wgEnotifImpersonal;
 553
 554                 if ( !$this->composed_common )
 555                         $this->composeCommonMailtext();
 556
 557                 if ( $wgEnotifImpersonal ) {
 558                         $this->mailTargets[] = new MailAddress( $user );
 559                 } else {
 560                         $this->sendPersonalised( $user );
 561                 }
 562         }
 563
 564         /**
 565          * Send any queued mails
 566          */
 567         function sendMails() {
 568                 global $wgEnotifImpersonal;
 569                 if ( $wgEnotifImpersonal ) {
 570                         $this->sendImpersonal( $this->mailTargets );
 571                 }
 572         }
 573
 574         /**
 575          * Does the per-user customizations to a notification e-mail (name,
 576          * timestamp in proper timezone, etc) and sends it out.
 577          * Returns true if the mail was sent successfully.
 578          *
 579          * @param $watchingUser User object
 580          * @return Boolean
 581          * @private
 582          */
 583         function sendPersonalised( $watchingUser ) {
 584                 global $wgContLang, $wgEnotifUseRealName;
 585                 // From the PHP manual:
 586                 //     Note:  The to parameter cannot be an address in the form of "Something <someone@example.com>".
 587                 //     The mail command will not parse this properly while talking with the MTA.
 588                 $to = new MailAddress( $watchingUser );
 589                 $name = $wgEnotifUseRealName ? $watchingUser->getRealName() : $watchingUser->getName();
 590                 $body = str_replace( '$WATCHINGUSERNAME', $name , $this->body );
 591
 592                 $timecorrection = $watchingUser->getOption( 'timecorrection' );
 593
 594                 # $PAGEEDITDATE is the time and date of the page change
 595                 # expressed in terms of individual local time of the notification
 596                 # recipient, i.e. watching user
 597                 $body = str_replace(
 598                         array(  '$PAGEEDITDATEANDTIME',
 599                                 '$PAGEEDITDATE',
 600                                 '$PAGEEDITTIME' ),
 601                         array(  $wgContLang->timeanddate( $this->timestamp, true, false, $timecorrection ),
 602                                 $wgContLang->date( $this->timestamp, true, false, $timecorrection ),
 603                                 $wgContLang->time( $this->timestamp, true, false, $timecorrection ) ),
 604                         $body);
 605
 606                 return UserMailer::send($to, $this->from, $this->subject, $body, $this->replyto);
 607         }
 608
 609         /**
 610          * Same as sendPersonalised but does impersonal mail suitable for bulk
 611          * mailing.  Takes an array of MailAddress objects.
 612          */
 613         function sendImpersonal( $addresses ) {
 614                 global $wgContLang;
 615
 616                 if (empty($addresses))
 617                         return;
 618
 619                 $body = str_replace(
 620                                 array(  '$WATCHINGUSERNAME',
 621                                         '$PAGEEDITDATE'),
 622                                 array(  wfMsgForContent('enotif_impersonal_salutation'),
 623                                         $wgContLang->timeanddate($this->timestamp, true, false, false)),
 624                                 $this->body);
 625
 626                 return UserMailer::send($addresses, $this->from, $this->subject, $body, $this->replyto);
 627         }
 628
 629 } # end of class EmailNotification
 630
 631 /**@{
 632  * Backwards compatibility functions
 633  *
 634  * @deprecated Use UserMailer methods; will be removed in 1.19
 635  */
 636 function wfRFC822Phrase( $s ) {
 637         wfDeprecated( __FUNCTION__ );
 638         return UserMailer::rfc822Phrase( $s );
 639 }
 640
 641 function userMailer( $to, $from, $subject, $body, $replyto=null ) {
 642         wfDeprecated( __FUNCTION__ );
 643         return UserMailer::send( $to, $from, $subject, $body, $replyto );
 644 }
 645 /**@}*/