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 string|User 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->address ) {
  59                         if ( $this->name != '' && !wfIsWindows() ) {
  60                                 global $wgEnotifUseRealName;
  61                                 $name = ( $wgEnotifUseRealName && $this->realName ) ? $this->realName : $this->name;
  62                                 $quoted = UserMailer::quotedPrintable( $name );
  63                                 if ( strpos( $quoted, '.' ) !== false || strpos( $quoted, ',' ) !== false ) {
  64                                         $quoted = '"' . $quoted . '"';
  65                                 }
  66                                 return "$quoted <{$this->address}>";
  67                         } else {
  68                                 return $this->address;
  69                         }
  70                 } else {
  71                         return "";
  72                 }
  73         }
  74
  75         function __toString() {
  76                 return $this->toString();
  77         }
  78 }
  79
  80
  81 /**
  82  * Collection of static functions for sending mail
  83  */
  84 class UserMailer {
  85         static $mErrorString;
  86
  87         /**
  88          * Send mail using a PEAR mailer
  89          *
  90          * @param $mailer
  91          * @param $dest
  92          * @param $headers
  93          * @param $body
  94          *
  95          * @return Status
  96          */
  97         protected static function sendWithPear( $mailer, $dest, $headers, $body ) {
  98                 $mailResult = $mailer->send( $dest, $headers, $body );
  99
 100                 # Based on the result return an error string,
 101                 if ( PEAR::isError( $mailResult ) ) {
 102                         wfDebug( "PEAR::Mail failed: " . $mailResult->getMessage() . "\n" );
 103                         return Status::newFatal( 'pear-mail-error', $mailResult->getMessage() );
 104                 } else {
 105                         return Status::newGood();
 106                 }
 107         }
 108
 109         /**
 110          * Creates a single string from an associative array
 111          *
 112          * @param $headers array Associative Array: keys are header field names,
 113          *                 values are ... values.
 114          * @param $endl String: The end of line character.  Defaults to "\n"
 115          * @return String
 116          */
 117         static function arrayToHeaderString( $headers, $endl = "\n" ) {
 118                 foreach( $headers as $name => $value ) {
 119                         $string[] = "$name: $value";
 120                 }
 121                 return implode( $endl, $string );
 122         }
 123
 124         /**
 125          * Create a value suitable for the MessageId Header
 126          *
 127          * @return String
 128          */
 129         static function makeMsgId() {
 130                 global $wgSMTP, $wgServer;
 131
 132                 $msgid = uniqid( wfWikiID() . ".", true ); /* true required for cygwin */
 133                 if ( is_array($wgSMTP) && isset($wgSMTP['IDHost']) && $wgSMTP['IDHost'] ) {
 134                         $domain = $wgSMTP['IDHost'];
 135                 } else {
 136                         $url = wfParseUrl($wgServer);
 137                         $domain = $url['host'];
 138                 }
 139                 return "<$msgid@$domain>";
 140         }
 141
 142         /**
 143          * This function will perform a direct (authenticated) login to
 144          * a SMTP Server to use for mail relaying if 'wgSMTP' specifies an
 145          * array of parameters. It requires PEAR:Mail to do that.
 146          * Otherwise it just uses the standard PHP 'mail' function.
 147          *
 148          * @param $to MailAddress: recipient's email (or an array of them)
 149          * @param $from MailAddress: sender's email
 150          * @param $subject String: email's subject.
 151          * @param $body String: email's text.
 152          * @param $replyto MailAddress: optional reply-to email (default: null).
 153          * @param $contentType String: optional custom Content-Type (default: text/plain; charset=UTF-8)
 154          * @return Status object
 155          */
 156         public static function send( $to, $from, $subject, $body, $replyto = null, $contentType = 'text/plain; charset=UTF-8' ) {
 157                 global $wgSMTP, $wgEnotifMaxRecips, $wgAdditionalMailParams;
 158
 159                 if ( !is_array( $to ) ) {
 160                         $to = array( $to );
 161                 }
 162
 163                 wfDebug( __METHOD__ . ': sending mail to ' . implode( ', ', $to ) . "\n" );
 164
 165                 $dest = array();
 166                 foreach ( $to as $u ) {
 167                         if ( $u->address ) {
 168                                 $dest[] = $u->address;
 169                         }
 170                 }
 171                 if ( count( $dest ) == 0 ) {
 172                         return Status::newFatal( 'user-mail-no-addy' );
 173                 }
 174
 175                 $headers['From'] = $from->toString();
 176                 $headers['Return-Path'] = $from->address;
 177                 if ( count( $to ) == 1 ) {
 178                         $headers['To'] = $to[0]->toString();
 179                 } else {
 180                         $headers['To'] = 'undisclosed-recipients:;';
 181                 }
 182
 183                 if ( $replyto ) {
 184                         $headers['Reply-To'] = $replyto->toString();
 185                 }
 186
 187                 $headers['Subject'] = self::quotedPrintable( $subject );
 188                 $headers['Date'] = date( 'r' );
 189                 $headers['MIME-Version'] = '1.0';
 190                 $headers['Content-type'] = ( is_null( $contentType ) ?
 191                         'text/plain; charset=UTF-8' : $contentType );
 192                 $headers['Content-transfer-encoding'] = '8bit';
 193
 194                 $headers['Message-ID'] = self::makeMsgId();
 195                 $headers['X-Mailer'] = 'MediaWiki mailer';
 196
 197                 $ret = wfRunHooks( 'AlternateUserMailer', array( $headers, $to, $from, $subject, $body ) );
 198                 if ( $ret === false ) {
 199                         return Status::newGood();
 200                 } elseif ( $ret !== true ) {
 201                         return Status::newFatal( 'php-mail-error', $ret );
 202                 }
 203
 204                 if ( is_array( $wgSMTP ) ) {
 205                         if ( function_exists( 'stream_resolve_include_path' ) ) {
 206                                 $found = stream_resolve_include_path( 'Mail.php' );
 207                         } else {
 208                                 $found = Fallback::stream_resolve_include_path( 'Mail.php' );
 209                         }
 210                         if ( !$found ) {
 211                                 throw new MWException( 'PEAR mail package is not installed' );
 212                         }
 213                         require_once( 'Mail.php' );
 214
 215                         wfSuppressWarnings();
 216
 217                         // Create the mail object using the Mail::factory method
 218                         $mail_object =& Mail::factory( 'smtp', $wgSMTP );
 219                         if ( PEAR::isError( $mail_object ) ) {
 220                                 wfDebug( "PEAR::Mail factory failed: " . $mail_object->getMessage() . "\n" );
 221                                 wfRestoreWarnings();
 222                                 return Status::newFatal( 'pear-mail-error', $mail_object->getMessage() );
 223                         }
 224
 225                         wfDebug( "Sending mail via PEAR::Mail\n" );
 226                         $chunks = array_chunk( $dest, $wgEnotifMaxRecips );
 227                         foreach ( $chunks as $chunk ) {
 228                                 $status = self::sendWithPear( $mail_object, $chunk, $headers, $body );
 229                                 if ( !$status->isOK() ) {
 230                                         wfRestoreWarnings();
 231                                         return $status;
 232                                 }
 233                         }
 234                         wfRestoreWarnings();
 235                         return Status::newGood();
 236                 } else  {
 237                         # Line endings need to be different on Unix and Windows due to
 238                         # the bug described at http://trac.wordpress.org/ticket/2603
 239                         if ( wfIsWindows() ) {
 240                                 $body = str_replace( "\n", "\r\n", $body );
 241                                 $endl = "\r\n";
 242                         } else {
 243                                 $endl = "\n";
 244                         }
 245
 246                         $headers = self::arrayToHeaderString( $headers, $endl );
 247
 248                         wfDebug( "Sending mail via internal mail() function\n" );
 249
 250                         self::$mErrorString = '';
 251                         $html_errors = ini_get( 'html_errors' );
 252                         ini_set( 'html_errors', '0' );
 253                         set_error_handler( 'UserMailer::errorHandler' );
 254
 255                         $safeMode = wfIniGetBool( 'safe_mode' );
 256                         foreach ( $dest as $recip ) {
 257                                 if ( $safeMode ) {
 258                                         $sent = mail( $recip, self::quotedPrintable( $subject ), $body, $headers );
 259                                 } else {
 260                                         $sent = mail( $recip, self::quotedPrintable( $subject ), $body, $headers, $wgAdditionalMailParams );
 261                                 }
 262                         }
 263
 264                         restore_error_handler();
 265                         ini_set( 'html_errors', $html_errors );
 266
 267                         if ( self::$mErrorString ) {
 268                                 wfDebug( "Error sending mail: " . self::$mErrorString . "\n" );
 269                                 return Status::newFatal( 'php-mail-error', self::$mErrorString );
 270                         } elseif ( ! $sent ) {
 271                                 // mail function only tells if there's an error
 272                                 wfDebug( "Unknown error sending mail\n" );
 273                                 return Status::newFatal( 'php-mail-error-unknown' );
 274                         } else {
 275                                 return Status::newGood();
 276                         }
 277                 }
 278         }
 279
 280         /**
 281          * Set the mail error message in self::$mErrorString
 282          *
 283          * @param $code Integer: error number
 284          * @param $string String: error message
 285          */
 286         static function errorHandler( $code, $string ) {
 287                 self::$mErrorString = preg_replace( '/^mail\(\)(\s*\[.*?\])?: /', '', $string );
 288         }
 289
 290         /**
 291          * Converts a string into a valid RFC 822 "phrase", such as is used for the sender name
 292          * @param $phrase string
 293          * @return string
 294          */
 295         public static function rfc822Phrase( $phrase ) {
 296                 $phrase = strtr( $phrase, array( "\r" => '', "\n" => '', '"' => '' ) );
 297                 return '"' . $phrase . '"';
 298         }
 299
 300         /**
 301          * Converts a string into quoted-printable format
 302          * @since 1.17
 303          * @return string
 304          */
 305         public static function quotedPrintable( $string, $charset = '' ) {
 306                 # Probably incomplete; see RFC 2045
 307                 if( empty( $charset ) ) {
 308                         $charset = 'UTF-8';
 309                 }
 310                 $charset = strtoupper( $charset );
 311                 $charset = str_replace( 'ISO-8859', 'ISO8859', $charset ); // ?
 312
 313                 $illegal = '\x00-\x08\x0b\x0c\x0e-\x1f\x7f-\xff=';
 314                 $replace = $illegal . '\t ?_';
 315                 if( !preg_match( "/[$illegal]/", $string ) ) {
 316                         return $string;
 317                 }
 318                 $out = "=?$charset?Q?";
 319                 $out .= preg_replace_callback( "/([$replace])/",
 320                         array( __CLASS__, 'quotedPrintableCallback' ), $string );
 321                 $out .= '?=';
 322                 return $out;
 323         }
 324
 325         protected static function quotedPrintableCallback( $matches ) {
 326                 return sprintf( "=%02X", ord( $matches[1] ) );
 327         }
 328 }
 329
 330 /**
 331  * This module processes the email notifications when the current page is
 332  * changed. It looks up the table watchlist to find out which users are watching
 333  * that page.
 334  *
 335  * The current implementation sends independent emails to each watching user for
 336  * the following reason:
 337  *
 338  * - Each watching user will be notified about the page edit time expressed in
 339  * his/her local time (UTC is shown additionally). To achieve this, we need to
 340  * find the individual timeoffset of each watching user from the preferences..
 341  *
 342  * Suggested improvement to slack down the number of sent emails: We could think
 343  * of sending out bulk mails (bcc:user1,user2...) for all these users having the
 344  * same timeoffset in their preferences.
 345  *
 346  * Visit the documentation pages under http://meta.wikipedia.com/Enotif
 347  *
 348  *
 349  */
 350 class EmailNotification {
 351         protected $subject, $body, $replyto, $from;
 352         protected $timestamp, $summary, $minorEdit, $oldid, $composed_common;
 353         protected $mailTargets = array();
 354
 355         /**
 356          * @var Title
 357          */
 358         protected $title;
 359
 360         /**
 361          * @var User
 362          */
 363         protected $editor;
 364
 365         /**
 366          * Send emails corresponding to the user $editor editing the page $title.
 367          * Also updates wl_notificationtimestamp.
 368          *
 369          * May be deferred via the job queue.
 370          *
 371          * @param $editor User object
 372          * @param $title Title object
 373          * @param $timestamp
 374          * @param $summary
 375          * @param $minorEdit
 376          * @param $oldid (default: false)
 377          */
 378         public function notifyOnPageChange( $editor, $title, $timestamp, $summary, $minorEdit, $oldid = false ) {
 379                 global $wgEnotifUseJobQ, $wgEnotifWatchlist, $wgShowUpdatedMarker, $wgEnotifMinorEdits,
 380                         $wgUsersNotifiedOnAllChanges, $wgEnotifUserTalk;
 381
 382                 if ( $title->getNamespace() < 0 ) {
 383                         return;
 384                 }
 385
 386                 // Build a list of users to notfiy
 387                 $watchers = array();
 388                 if ( $wgEnotifWatchlist || $wgShowUpdatedMarker ) {
 389                         $dbw = wfGetDB( DB_MASTER );
 390                         $res = $dbw->select( array( 'watchlist' ),
 391                                 array( 'wl_user' ),
 392                                 array(
 393                                         'wl_title' => $title->getDBkey(),
 394                                         'wl_namespace' => $title->getNamespace(),
 395                                         'wl_user != ' . intval( $editor->getID() ),
 396                                         'wl_notificationtimestamp IS NULL',
 397                                 ), __METHOD__
 398                         );
 399                         foreach ( $res as $row ) {
 400                                 $watchers[] = intval( $row->wl_user );
 401                         }
 402                         if ( $watchers ) {
 403                                 // Update wl_notificationtimestamp for all watching users except
 404                                 // the editor
 405                                 $dbw->begin();
 406                                 $dbw->update( 'watchlist',
 407                                         array( /* SET */
 408                                                 'wl_notificationtimestamp' => $dbw->timestamp( $timestamp )
 409                                         ), array( /* WHERE */
 410                                                 'wl_title' => $title->getDBkey(),
 411                                                 'wl_namespace' => $title->getNamespace(),
 412                                                 'wl_user' => $watchers
 413                                         ), __METHOD__
 414                                 );
 415                                 $dbw->commit();
 416                         }
 417                 }
 418
 419                 $sendEmail = true;
 420                 // If nobody is watching the page, and there are no users notified on all changes
 421                 // don't bother creating a job/trying to send emails
 422                 // $watchers deals with $wgEnotifWatchlist
 423                 if ( !count( $watchers ) && !count( $wgUsersNotifiedOnAllChanges ) ) {
 424                         $sendEmail = false;
 425                         // Only send notification for non minor edits, unless $wgEnotifMinorEdits
 426                         if ( !$minorEdit || ( $wgEnotifMinorEdits && !$editor->isAllowed( 'nominornewtalk' ) ) ) {
 427                                 $isUserTalkPage = ( $title->getNamespace() == NS_USER_TALK );
 428                                 if ( $wgEnotifUserTalk && $isUserTalkPage && $this->canSendUserTalkEmail( $editor, $title, $minorEdit ) ) {
 429                                         $sendEmail = true;
 430                                 }
 431                         }
 432                 }
 433
 434                 if ( !$sendEmail ) {
 435                         return;
 436                 }
 437                 if ( $wgEnotifUseJobQ ) {
 438                         $params = array(
 439                                 'editor' => $editor->getName(),
 440                                 'editorID' => $editor->getID(),
 441                                 'timestamp' => $timestamp,
 442                                 'summary' => $summary,
 443                                 'minorEdit' => $minorEdit,
 444                                 'oldid' => $oldid,
 445                                 'watchers' => $watchers
 446                         );
 447                         $job = new EnotifNotifyJob( $title, $params );
 448                         $job->insert();
 449                 } else {
 450                         $this->actuallyNotifyOnPageChange( $editor, $title, $timestamp, $summary, $minorEdit, $oldid, $watchers );
 451                 }
 452         }
 453
 454         /**
 455          * Immediate version of notifyOnPageChange().
 456          *
 457          * Send emails corresponding to the user $editor editing the page $title.
 458          * Also updates wl_notificationtimestamp.
 459          *
 460          * @param $editor User object
 461          * @param $title Title object
 462          * @param $timestamp string Edit timestamp
 463          * @param $summary string Edit summary
 464          * @param $minorEdit bool
 465          * @param $oldid int Revision ID
 466          * @param $watchers array of user IDs
 467          */
 468         public function actuallyNotifyOnPageChange( $editor, $title, $timestamp, $summary, $minorEdit, $oldid, $watchers ) {
 469                 # we use $wgPasswordSender as sender's address
 470                 global $wgEnotifWatchlist;
 471                 global $wgEnotifMinorEdits, $wgEnotifUserTalk;
 472
 473                 wfProfileIn( __METHOD__ );
 474
 475                 # The following code is only run, if several conditions are met:
 476                 # 1. EmailNotification for pages (other than user_talk pages) must be enabled
 477                 # 2. minor edits (changes) are only regarded if the global flag indicates so
 478
 479                 $isUserTalkPage = ( $title->getNamespace() == NS_USER_TALK );
 480
 481                 $this->title = $title;
 482                 $this->timestamp = $timestamp;
 483                 $this->summary = $summary;
 484                 $this->minorEdit = $minorEdit;
 485                 $this->oldid = $oldid;
 486                 $this->editor = $editor;
 487                 $this->composed_common = false;
 488
 489                 $userTalkId = false;
 490
 491                 if ( !$minorEdit || ( $wgEnotifMinorEdits && !$editor->isAllowed( 'nominornewtalk' ) ) ) {
 492
 493                         if ( $wgEnotifUserTalk && $isUserTalkPage && $this->canSendUserTalkEmail( $editor, $title, $minorEdit ) ) {
 494                                 $targetUser = User::newFromName( $title->getText() );
 495                                 $this->compose( $targetUser );
 496                                 $userTalkId = $targetUser->getId();
 497                         }
 498
 499                         if ( $wgEnotifWatchlist ) {
 500                                 // Send updates to watchers other than the current editor
 501                                 $userArray = UserArray::newFromIDs( $watchers );
 502                                 foreach ( $userArray as $watchingUser ) {
 503                                         if ( $watchingUser->getOption( 'enotifwatchlistpages' ) &&
 504                                                 ( !$minorEdit || $watchingUser->getOption( 'enotifminoredits' ) ) &&
 505                                                 $watchingUser->isEmailConfirmed() &&
 506                                                 $watchingUser->getID() != $userTalkId )
 507                                         {
 508                                                 $this->compose( $watchingUser );
 509                                         }
 510                                 }
 511                         }
 512                 }
 513
 514                 global $wgUsersNotifiedOnAllChanges;
 515                 foreach ( $wgUsersNotifiedOnAllChanges as $name ) {
 516                         if ( $editor->getName() == $name ) {
 517                                 // No point notifying the user that actually made the change!
 518                                 continue;
 519                         }
 520                         $user = User::newFromName( $name );
 521                         $this->compose( $user );
 522                 }
 523
 524                 $this->sendMails();
 525                 wfProfileOut( __METHOD__ );
 526         }
 527
 528         /**
 529          * @param $editor User
 530          * @param $title Title bool
 531          * @param $minorEdit
 532          * @return bool
 533          */
 534         private function canSendUserTalkEmail( $editor, $title, $minorEdit ) {
 535                 global $wgEnotifUserTalk;
 536                 $isUserTalkPage = ( $title->getNamespace() == NS_USER_TALK );
 537
 538                 if ( $wgEnotifUserTalk && $isUserTalkPage ) {
 539                         $targetUser = User::newFromName( $title->getText() );
 540
 541                         if ( !$targetUser || $targetUser->isAnon() ) {
 542                                 wfDebug( __METHOD__ . ": user talk page edited, but user does not exist\n" );
 543                         } elseif ( $targetUser->getId() == $editor->getId() ) {
 544                                 wfDebug( __METHOD__ . ": user edited their own talk page, no notification sent\n" );
 545                         } elseif ( $targetUser->getOption( 'enotifusertalkpages' ) &&
 546                                 ( !$minorEdit || $targetUser->getOption( 'enotifminoredits' ) ) )
 547                         {
 548                                 if ( $targetUser->isEmailConfirmed() ) {
 549                                         wfDebug( __METHOD__ . ": sending talk page update notification\n" );
 550                                         return true;
 551                                 } else {
 552                                         wfDebug( __METHOD__ . ": talk page owner doesn't have validated email\n" );
 553                                 }
 554                         } else {
 555                                 wfDebug( __METHOD__ . ": talk page owner doesn't want notifications\n" );
 556                         }
 557                 }
 558                 return false;
 559         }
 560
 561         /**
 562          * Generate the generic "this page has been changed" e-mail text.
 563          */
 564         private function composeCommonMailtext() {
 565                 global $wgPasswordSender, $wgPasswordSenderName, $wgNoReplyAddress;
 566                 global $wgEnotifFromEditor, $wgEnotifRevealEditorAddress;
 567                 global $wgEnotifImpersonal, $wgEnotifUseRealName;
 568
 569                 $this->composed_common = true;
 570
 571                 # You as the WikiAdmin and Sysops can make use of plenty of
 572                 # named variables when composing your notification emails while
 573                 # simply editing the Meta pages
 574
 575                 $keys = array();
 576
 577                 if ( $this->oldid ) {
 578                         // Always show a link to the diff which triggered the mail. See bug 32210.
 579                         $keys['$NEWPAGE'] = wfMsgForContent( 'enotif_lastdiff',
 580                                 $this->title->getCanonicalUrl( 'diff=next&oldid=' . $this->oldid ) );
 581                         if ( !$wgEnotifImpersonal ) {
 582                                 // For personal mail, also show a link to the diff of all changes
 583                                 // since last visited.
 584                                 $keys['$NEWPAGE'] .= " \n" . wfMsgForContent( 'enotif_lastvisited',
 585                                         $this->title->getCanonicalUrl( 'diff=0&oldid=' . $this->oldid ) );
 586                         }
 587                         $keys['$OLDID']   = $this->oldid;
 588                         $keys['$CHANGEDORCREATED'] = wfMsgForContent( 'changed' );
 589                 } else {
 590                         $keys['$NEWPAGE'] = wfMsgForContent( 'enotif_newpagetext' );
 591                         # clear $OLDID placeholder in the message template
 592                         $keys['$OLDID']   = '';
 593                         $keys['$CHANGEDORCREATED'] = wfMsgForContent( 'created' );
 594                 }
 595
 596                 $keys['$PAGETITLE'] = $this->title->getPrefixedText();
 597                 $keys['$PAGETITLE_URL'] = $this->title->getCanonicalUrl();
 598                 $keys['$PAGEMINOREDIT'] = $this->minorEdit ? wfMsgForContent( 'minoredit' ) : '';
 599                 $keys['$PAGESUMMARY'] = $this->summary == '' ? ' - ' : $this->summary;
 600                 $keys['$UNWATCHURL'] = $this->title->getCanonicalUrl( 'action=unwatch' );
 601
 602                 if ( $this->editor->isAnon() ) {
 603                         # real anon (user:xxx.xxx.xxx.xxx)
 604                         $keys['$PAGEEDITOR'] = wfMsgForContent( 'enotif_anon_editor', $this->editor->getName() );
 605                         $keys['$PAGEEDITOR_EMAIL'] = wfMsgForContent( 'noemailtitle' );
 606                 } else {
 607                         $keys['$PAGEEDITOR'] = $wgEnotifUseRealName ? $this->editor->getRealName() : $this->editor->getName();
 608                         $emailPage = SpecialPage::getSafeTitleFor( 'Emailuser', $this->editor->getName() );
 609                         $keys['$PAGEEDITOR_EMAIL'] = $emailPage->getCanonicalUrl();
 610                 }
 611
 612                 $keys['$PAGEEDITOR_WIKI'] = $this->editor->getUserPage()->getCanonicalUrl();
 613
 614                 # Now build message's subject and body
 615
 616                 $subject = wfMsgExt( 'enotif_subject', 'content' );
 617                 $subject = strtr( $subject, $keys );
 618                 $this->subject = MessageCache::singleton()->transform( $subject, false, null, $this->title );
 619
 620                 $body = wfMsgExt( 'enotif_body', 'content' );
 621                 $body = strtr( $body, $keys );
 622                 $body = MessageCache::singleton()->transform( $body, false, null, $this->title );
 623                 $this->body = wordwrap( $body, 72 );
 624
 625                 # Reveal the page editor's address as REPLY-TO address only if
 626                 # the user has not opted-out and the option is enabled at the
 627                 # global configuration level.
 628                 $adminAddress = new MailAddress( $wgPasswordSender, $wgPasswordSenderName );
 629                 if ( $wgEnotifRevealEditorAddress
 630                         && ( $this->editor->getEmail() != '' )
 631                         && $this->editor->getOption( 'enotifrevealaddr' ) )
 632                 {
 633                         $editorAddress = new MailAddress( $this->editor );
 634                         if ( $wgEnotifFromEditor ) {
 635                                 $this->from    = $editorAddress;
 636                         } else {
 637                                 $this->from    = $adminAddress;
 638                                 $this->replyto = $editorAddress;
 639                         }
 640                 } else {
 641                         $this->from    = $adminAddress;
 642                         $this->replyto = new MailAddress( $wgNoReplyAddress );
 643                 }
 644         }
 645
 646         /**
 647          * Compose a mail to a given user and either queue it for sending, or send it now,
 648          * depending on settings.
 649          *
 650          * Call sendMails() to send any mails that were queued.
 651          * @param $user User
 652          */
 653         function compose( $user ) {
 654                 global $wgEnotifImpersonal;
 655
 656                 if ( !$this->composed_common )
 657                         $this->composeCommonMailtext();
 658
 659                 if ( $wgEnotifImpersonal ) {
 660                         $this->mailTargets[] = new MailAddress( $user );
 661                 } else {
 662                         $this->sendPersonalised( $user );
 663                 }
 664         }
 665
 666         /**
 667          * Send any queued mails
 668          */
 669         function sendMails() {
 670                 global $wgEnotifImpersonal;
 671                 if ( $wgEnotifImpersonal ) {
 672                         $this->sendImpersonal( $this->mailTargets );
 673                 }
 674         }
 675
 676         /**
 677          * Does the per-user customizations to a notification e-mail (name,
 678          * timestamp in proper timezone, etc) and sends it out.
 679          * Returns true if the mail was sent successfully.
 680          *
 681          * @param $watchingUser User object
 682          * @return Boolean
 683          * @private
 684          */
 685         function sendPersonalised( $watchingUser ) {
 686                 global $wgContLang, $wgEnotifUseRealName;
 687                 // From the PHP manual:
 688                 //     Note:  The to parameter cannot be an address in the form of "Something <someone@example.com>".
 689                 //     The mail command will not parse this properly while talking with the MTA.
 690                 $to = new MailAddress( $watchingUser );
 691
 692                 # $PAGEEDITDATE is the time and date of the page change
 693                 # expressed in terms of individual local time of the notification
 694                 # recipient, i.e. watching user
 695                 $body = str_replace(
 696                         array( '$WATCHINGUSERNAME',
 697                                 '$PAGEEDITDATE',
 698                                 '$PAGEEDITTIME' ),
 699                         array( $wgEnotifUseRealName ? $watchingUser->getRealName() : $watchingUser->getName(),
 700                                 $wgContLang->userDate( $this->timestamp, $watchingUser ),
 701                                 $wgContLang->userTime( $this->timestamp, $watchingUser ) ),
 702                         $this->body );
 703
 704                 return UserMailer::send( $to, $this->from, $this->subject, $body, $this->replyto );
 705         }
 706
 707         /**
 708          * Same as sendPersonalised but does impersonal mail suitable for bulk
 709          * mailing.  Takes an array of MailAddress objects.
 710          * @return Status
 711          */
 712         function sendImpersonal( $addresses ) {
 713                 global $wgContLang;
 714
 715                 if ( empty( $addresses ) )
 716                         return;
 717
 718                 $body = str_replace(
 719                                 array( '$WATCHINGUSERNAME',
 720                                         '$PAGEEDITDATE',
 721                                         '$PAGEEDITTIME' ),
 722                                 array( wfMsgForContent( 'enotif_impersonal_salutation' ),
 723                                         $wgContLang->date( $this->timestamp, false, false ),
 724                                         $wgContLang->time( $this->timestamp, false, false ) ),
 725                                 $this->body );
 726
 727                 return UserMailer::send( $addresses, $this->from, $this->subject, $body, $this->replyto );
 728         }
 729
 730 } # end of class EmailNotification