includes/UserMailer.php

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