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