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                 $strings = array();
 119                 foreach( $headers as $name => $value ) {
 120                         $strings[] = "$name: $value";
 121                 }
 122                 return implode( $endl, $strings );
 123         }
 124
 125         /**
 126          * Create a value suitable for the MessageId Header
 127          *
 128          * @return String
 129          */
 130         static function makeMsgId() {
 131                 global $wgSMTP, $wgServer;
 132
 133                 $msgid = uniqid( wfWikiID() . ".", true ); /* true required for cygwin */
 134                 if ( is_array($wgSMTP) && isset($wgSMTP['IDHost']) && $wgSMTP['IDHost'] ) {
 135                         $domain = $wgSMTP['IDHost'];
 136                 } else {
 137                         $url = wfParseUrl($wgServer);
 138                         $domain = $url['host'];
 139                 }
 140                 return "<$msgid@$domain>";
 141         }
 142
 143         /**
 144          * This function will perform a direct (authenticated) login to
 145          * a SMTP Server to use for mail relaying if 'wgSMTP' specifies an
 146          * array of parameters. It requires PEAR:Mail to do that.
 147          * Otherwise it just uses the standard PHP 'mail' function.
 148          *
 149          * @param $to MailAddress: recipient's email (or an array of them)
 150          * @param $from MailAddress: sender's email
 151          * @param $subject String: email's subject.
 152          * @param $body String: email's text.
 153          * @param $replyto MailAddress: optional reply-to email (default: null).
 154          * @param $contentType String: optional custom Content-Type (default: text/plain; charset=UTF-8)
 155          * @return Status object
 156          */
 157         public static function send( $to, $from, $subject, $body, $replyto = null, $contentType = 'text/plain; charset=UTF-8' ) {
 158                 global $wgSMTP, $wgEnotifMaxRecips, $wgAdditionalMailParams;
 159
 160                 if ( !is_array( $to ) ) {
 161                         $to = array( $to );
 162                 }
 163
 164                 wfDebug( __METHOD__ . ': sending mail to ' . implode( ', ', $to ) . "\n" );
 165
 166                 # Make sure we have at least one address
 167                 $has_address = false;
 168                 foreach ( $to as $u ) {
 169                         if ( $u->address ) {
 170                                 $has_address = true;
 171                                 break;
 172                         }
 173                 }
 174                 if ( !$has_address ) {
 175                         return Status::newFatal( 'user-mail-no-addy' );
 176                 }
 177
 178                 # Forge email headers
 179                 # -------------------
 180                 #
 181                 # WARNING
 182                 #
 183                 # DO NOT add To: or Subject: headers at this step. They need to be
 184                 # handled differently depending upon the mailer we are going to use.
 185                 #
 186                 # To:
 187                 #  PHP mail() first argument is the mail receiver. The argument is
 188                 #  used as a recipient destination and as a To header.
 189                 #
 190                 #  PEAR mailer has a recipient argument which is only used to
 191                 #  send the mail. If no To header is given, PEAR will set it to
 192                 #  to 'undisclosed-recipients:'.
 193                 #
 194                 #  NOTE: To: is for presentation, the actual recipient is specified
 195                 #  by the mailer using the Rcpt-To: header.
 196                 #
 197                 # Subject:
 198                 #  PHP mail() second argument to pass the subject, passing a Subject
 199                 #  as an additional header will result in a duplicate header.
 200                 #
 201                 #  PEAR mailer should be passed a Subject header.
 202                 #
 203                 # -- hashar 20120218
 204
 205                 $headers['From'] = $from->toString();
 206                 $headers['Return-Path'] = $from->address;
 207
 208                 if ( $replyto ) {
 209                         $headers['Reply-To'] = $replyto->toString();
 210                 }
 211
 212                 $headers['Date'] = date( 'r' );
 213                 $headers['MIME-Version'] = '1.0';
 214                 $headers['Content-type'] = ( is_null( $contentType ) ?
 215                         'text/plain; charset=UTF-8' : $contentType );
 216                 $headers['Content-transfer-encoding'] = '8bit';
 217
 218                 $headers['Message-ID'] = self::makeMsgId();
 219                 $headers['X-Mailer'] = 'MediaWiki mailer';
 220
 221                 $ret = wfRunHooks( 'AlternateUserMailer', array( $headers, $to, $from, $subject, $body ) );
 222                 if ( $ret === false ) {
 223                         return Status::newGood();
 224                 } elseif ( $ret !== true ) {
 225                         return Status::newFatal( 'php-mail-error', $ret );
 226                 }
 227
 228                 if ( is_array( $wgSMTP ) ) {
 229                         #
 230                         # PEAR MAILER
 231                         #
 232
 233                         if ( function_exists( 'stream_resolve_include_path' ) ) {
 234                                 $found = stream_resolve_include_path( 'Mail.php' );
 235                         } else {
 236                                 $found = Fallback::stream_resolve_include_path( 'Mail.php' );
 237                         }
 238                         if ( !$found ) {
 239                                 throw new MWException( 'PEAR mail package is not installed' );
 240                         }
 241                         require_once( 'Mail.php' );
 242
 243                         wfSuppressWarnings();
 244
 245                         // Create the mail object using the Mail::factory method
 246                         $mail_object =& Mail::factory( 'smtp', $wgSMTP );
 247                         if ( PEAR::isError( $mail_object ) ) {
 248                                 wfDebug( "PEAR::Mail factory failed: " . $mail_object->getMessage() . "\n" );
 249                                 wfRestoreWarnings();
 250                                 return Status::newFatal( 'pear-mail-error', $mail_object->getMessage() );
 251                         }
 252
 253                         wfDebug( "Sending mail via PEAR::Mail\n" );
 254
 255                         $headers['Subject'] = self::quotedPrintable( $subject );
 256
 257                         # When sending only to one recipient, shows it its email using To:
 258                         if ( count( $to ) == 1 ) {
 259                                 $headers['To'] = $to[0]->toString();
 260                         }
 261
 262                         # Split jobs since SMTP servers tends to limit the maximum
 263                         # number of possible recipients.
 264                         $chunks = array_chunk( $to, $wgEnotifMaxRecips );
 265                         foreach ( $chunks as $chunk ) {
 266                                 $status = self::sendWithPear( $mail_object, $chunk, $headers, $body );
 267                                 # FIXME : some chunks might be sent while others are not!
 268                                 if ( !$status->isOK() ) {
 269                                         wfRestoreWarnings();
 270                                         return $status;
 271                                 }
 272                         }
 273                         wfRestoreWarnings();
 274                         return Status::newGood();
 275                 } else  {
 276                         #
 277                         # PHP mail()
 278                         #
 279
 280                         # Line endings need to be different on Unix and Windows due to
 281                         # the bug described at http://trac.wordpress.org/ticket/2603
 282                         if ( wfIsWindows() ) {
 283                                 $body = str_replace( "\n", "\r\n", $body );
 284                                 $endl = "\r\n";
 285                         } else {
 286                                 $endl = "\n";
 287                         }
 288
 289                         if( count($to) > 1 ) {
 290                                 $headers['To'] = 'undisclosed-recipients:;';
 291                         }
 292                         $headers = self::arrayToHeaderString( $headers, $endl );
 293
 294                         wfDebug( "Sending mail via internal mail() function\n" );
 295
 296                         self::$mErrorString = '';
 297                         $html_errors = ini_get( 'html_errors' );
 298                         ini_set( 'html_errors', '0' );
 299                         set_error_handler( 'UserMailer::errorHandler' );
 300
 301                         $safeMode = wfIniGetBool( 'safe_mode' );
 302                         foreach ( $to as $recip ) {
 303                                 if ( $safeMode ) {
 304                                         $sent = mail( $recip, self::quotedPrintable( $subject ), $body, $headers );
 305                                 } else {
 306                                         $sent = mail( $recip, self::quotedPrintable( $subject ), $body, $headers, $wgAdditionalMailParams );
 307                                 }
 308                         }
 309
 310                         restore_error_handler();
 311                         ini_set( 'html_errors', $html_errors );
 312
 313                         if ( self::$mErrorString ) {
 314                                 wfDebug( "Error sending mail: " . self::$mErrorString . "\n" );
 315                                 return Status::newFatal( 'php-mail-error', self::$mErrorString );
 316                         } elseif ( ! $sent ) {
 317                                 // mail function only tells if there's an error
 318                                 wfDebug( "Unknown error sending mail\n" );
 319                                 return Status::newFatal( 'php-mail-error-unknown' );
 320                         } else {
 321                                 return Status::newGood();
 322                         }
 323                 }
 324         }
 325
 326         /**
 327          * Set the mail error message in self::$mErrorString
 328          *
 329          * @param $code Integer: error number
 330          * @param $string String: error message
 331          */
 332         static function errorHandler( $code, $string ) {
 333                 self::$mErrorString = preg_replace( '/^mail\(\)(\s*\[.*?\])?: /', '', $string );
 334         }
 335
 336         /**
 337          * Converts a string into a valid RFC 822 "phrase", such as is used for the sender name
 338          * @param $phrase string
 339          * @return string
 340          */
 341         public static function rfc822Phrase( $phrase ) {
 342                 $phrase = strtr( $phrase, array( "\r" => '', "\n" => '', '"' => '' ) );
 343                 return '"' . $phrase . '"';
 344         }
 345
 346         /**
 347          * Converts a string into quoted-printable format
 348          * @since 1.17
 349          * @return string
 350          */
 351         public static function quotedPrintable( $string, $charset = '' ) {
 352                 # Probably incomplete; see RFC 2045
 353                 if( empty( $charset ) ) {
 354                         $charset = 'UTF-8';
 355                 }
 356                 $charset = strtoupper( $charset );
 357                 $charset = str_replace( 'ISO-8859', 'ISO8859', $charset ); // ?
 358
 359                 $illegal = '\x00-\x08\x0b\x0c\x0e-\x1f\x7f-\xff=';
 360                 $replace = $illegal . '\t ?_';
 361                 if( !preg_match( "/[$illegal]/", $string ) ) {
 362                         return $string;
 363                 }
 364                 $out = "=?$charset?Q?";
 365                 $out .= preg_replace_callback( "/([$replace])/",
 366                         array( __CLASS__, 'quotedPrintableCallback' ), $string );
 367                 $out .= '?=';
 368                 return $out;
 369         }
 370
 371         protected static function quotedPrintableCallback( $matches ) {
 372                 return sprintf( "=%02X", ord( $matches[1] ) );
 373         }
 374 }
 375
 376 /**
 377  * This module processes the email notifications when the current page is
 378  * changed. It looks up the table watchlist to find out which users are watching
 379  * that page.
 380  *
 381  * The current implementation sends independent emails to each watching user for
 382  * the following reason:
 383  *
 384  * - Each watching user will be notified about the page edit time expressed in
 385  * his/her local time (UTC is shown additionally). To achieve this, we need to
 386  * find the individual timeoffset of each watching user from the preferences..
 387  *
 388  * Suggested improvement to slack down the number of sent emails: We could think
 389  * of sending out bulk mails (bcc:user1,user2...) for all these users having the
 390  * same timeoffset in their preferences.
 391  *
 392  * Visit the documentation pages under http://meta.wikipedia.com/Enotif
 393  *
 394  *
 395  */
 396 class EmailNotification {
 397         protected $subject, $body, $replyto, $from;
 398         protected $timestamp, $summary, $minorEdit, $oldid, $composed_common;
 399         protected $mailTargets = array();
 400
 401         /**
 402          * @var Title
 403          */
 404         protected $title;
 405
 406         /**
 407          * @var User
 408          */
 409         protected $editor;
 410
 411         /**
 412          * Send emails corresponding to the user $editor editing the page $title.
 413          * Also updates wl_notificationtimestamp.
 414          *
 415          * May be deferred via the job queue.
 416          *
 417          * @param $editor User object
 418          * @param $title Title object
 419          * @param $timestamp
 420          * @param $summary
 421          * @param $minorEdit
 422          * @param $oldid (default: false)
 423          */
 424         public function notifyOnPageChange( $editor, $title, $timestamp, $summary, $minorEdit, $oldid = false ) {
 425                 global $wgEnotifUseJobQ, $wgEnotifWatchlist, $wgShowUpdatedMarker, $wgEnotifMinorEdits,
 426                         $wgUsersNotifiedOnAllChanges, $wgEnotifUserTalk;
 427
 428                 if ( $title->getNamespace() < 0 ) {
 429                         return;
 430                 }
 431
 432                 // Build a list of users to notfiy
 433                 $watchers = array();
 434                 if ( $wgEnotifWatchlist || $wgShowUpdatedMarker ) {
 435                         $dbw = wfGetDB( DB_MASTER );
 436                         $res = $dbw->select( array( 'watchlist' ),
 437                                 array( 'wl_user' ),
 438                                 array(
 439                                         'wl_title' => $title->getDBkey(),
 440                                         'wl_namespace' => $title->getNamespace(),
 441                                         'wl_user != ' . intval( $editor->getID() ),
 442                                         'wl_notificationtimestamp IS NULL',
 443                                 ), __METHOD__
 444                         );
 445                         foreach ( $res as $row ) {
 446                                 $watchers[] = intval( $row->wl_user );
 447                         }
 448                         if ( $watchers ) {
 449                                 // Update wl_notificationtimestamp for all watching users except
 450                                 // the editor
 451                                 $dbw->begin( __METHOD__ );
 452                                 $dbw->update( 'watchlist',
 453                                         array( /* SET */
 454                                                 'wl_notificationtimestamp' => $dbw->timestamp( $timestamp )
 455                                         ), array( /* WHERE */
 456                                                 'wl_title' => $title->getDBkey(),
 457                                                 'wl_namespace' => $title->getNamespace(),
 458                                                 'wl_user' => $watchers
 459                                         ), __METHOD__
 460                                 );
 461                                 $dbw->commit( __METHOD__ );
 462                         }
 463                 }
 464
 465                 $sendEmail = true;
 466                 // If nobody is watching the page, and there are no users notified on all changes
 467                 // don't bother creating a job/trying to send emails
 468                 // $watchers deals with $wgEnotifWatchlist
 469                 if ( !count( $watchers ) && !count( $wgUsersNotifiedOnAllChanges ) ) {
 470                         $sendEmail = false;
 471                         // Only send notification for non minor edits, unless $wgEnotifMinorEdits
 472                         if ( !$minorEdit || ( $wgEnotifMinorEdits && !$editor->isAllowed( 'nominornewtalk' ) ) ) {
 473                                 $isUserTalkPage = ( $title->getNamespace() == NS_USER_TALK );
 474                                 if ( $wgEnotifUserTalk && $isUserTalkPage && $this->canSendUserTalkEmail( $editor, $title, $minorEdit ) ) {
 475                                         $sendEmail = true;
 476                                 }
 477                         }
 478                 }
 479
 480                 if ( !$sendEmail ) {
 481                         return;
 482                 }
 483                 if ( $wgEnotifUseJobQ ) {
 484                         $params = array(
 485                                 'editor' => $editor->getName(),
 486                                 'editorID' => $editor->getID(),
 487                                 'timestamp' => $timestamp,
 488                                 'summary' => $summary,
 489                                 'minorEdit' => $minorEdit,
 490                                 'oldid' => $oldid,
 491                                 'watchers' => $watchers
 492                         );
 493                         $job = new EnotifNotifyJob( $title, $params );
 494                         $job->insert();
 495                 } else {
 496                         $this->actuallyNotifyOnPageChange( $editor, $title, $timestamp, $summary, $minorEdit, $oldid, $watchers );
 497                 }
 498         }
 499
 500         /**
 501          * Immediate version of notifyOnPageChange().
 502          *
 503          * Send emails corresponding to the user $editor editing the page $title.
 504          * Also updates wl_notificationtimestamp.
 505          *
 506          * @param $editor User object
 507          * @param $title Title object
 508          * @param $timestamp string Edit timestamp
 509          * @param $summary string Edit summary
 510          * @param $minorEdit bool
 511          * @param $oldid int Revision ID
 512          * @param $watchers array of user IDs
 513          */
 514         public function actuallyNotifyOnPageChange( $editor, $title, $timestamp, $summary, $minorEdit, $oldid, $watchers ) {
 515                 # we use $wgPasswordSender as sender's address
 516                 global $wgEnotifWatchlist;
 517                 global $wgEnotifMinorEdits, $wgEnotifUserTalk;
 518
 519                 wfProfileIn( __METHOD__ );
 520
 521                 # The following code is only run, if several conditions are met:
 522                 # 1. EmailNotification for pages (other than user_talk pages) must be enabled
 523                 # 2. minor edits (changes) are only regarded if the global flag indicates so
 524
 525                 $isUserTalkPage = ( $title->getNamespace() == NS_USER_TALK );
 526
 527                 $this->title = $title;
 528                 $this->timestamp = $timestamp;
 529                 $this->summary = $summary;
 530                 $this->minorEdit = $minorEdit;
 531                 $this->oldid = $oldid;
 532                 $this->editor = $editor;
 533                 $this->composed_common = false;
 534
 535                 $userTalkId = false;
 536
 537                 if ( !$minorEdit || ( $wgEnotifMinorEdits && !$editor->isAllowed( 'nominornewtalk' ) ) ) {
 538
 539                         if ( $wgEnotifUserTalk && $isUserTalkPage && $this->canSendUserTalkEmail( $editor, $title, $minorEdit ) ) {
 540                                 $targetUser = User::newFromName( $title->getText() );
 541                                 $this->compose( $targetUser );
 542                                 $userTalkId = $targetUser->getId();
 543                         }
 544
 545                         if ( $wgEnotifWatchlist ) {
 546                                 // Send updates to watchers other than the current editor
 547                                 $userArray = UserArray::newFromIDs( $watchers );
 548                                 foreach ( $userArray as $watchingUser ) {
 549                                         if ( $watchingUser->getOption( 'enotifwatchlistpages' ) &&
 550                                                 ( !$minorEdit || $watchingUser->getOption( 'enotifminoredits' ) ) &&
 551                                                 $watchingUser->isEmailConfirmed() &&
 552                                                 $watchingUser->getID() != $userTalkId )
 553                                         {
 554                                                 $this->compose( $watchingUser );
 555                                         }
 556                                 }
 557                         }
 558                 }
 559
 560                 global $wgUsersNotifiedOnAllChanges;
 561                 foreach ( $wgUsersNotifiedOnAllChanges as $name ) {
 562                         if ( $editor->getName() == $name ) {
 563                                 // No point notifying the user that actually made the change!
 564                                 continue;
 565                         }
 566                         $user = User::newFromName( $name );
 567                         $this->compose( $user );
 568                 }
 569
 570                 $this->sendMails();
 571                 wfProfileOut( __METHOD__ );
 572         }
 573
 574         /**
 575          * @param $editor User
 576          * @param $title Title bool
 577          * @param $minorEdit
 578          * @return bool
 579          */
 580         private function canSendUserTalkEmail( $editor, $title, $minorEdit ) {
 581                 global $wgEnotifUserTalk;
 582                 $isUserTalkPage = ( $title->getNamespace() == NS_USER_TALK );
 583
 584                 if ( $wgEnotifUserTalk && $isUserTalkPage ) {
 585                         $targetUser = User::newFromName( $title->getText() );
 586
 587                         if ( !$targetUser || $targetUser->isAnon() ) {
 588                                 wfDebug( __METHOD__ . ": user talk page edited, but user does not exist\n" );
 589                         } elseif ( $targetUser->getId() == $editor->getId() ) {
 590                                 wfDebug( __METHOD__ . ": user edited their own talk page, no notification sent\n" );
 591                         } elseif ( $targetUser->getOption( 'enotifusertalkpages' ) &&
 592                                 ( !$minorEdit || $targetUser->getOption( 'enotifminoredits' ) ) )
 593                         {
 594                                 if ( $targetUser->isEmailConfirmed() ) {
 595                                         wfDebug( __METHOD__ . ": sending talk page update notification\n" );
 596                                         return true;
 597                                 } else {
 598                                         wfDebug( __METHOD__ . ": talk page owner doesn't have validated email\n" );
 599                                 }
 600                         } else {
 601                                 wfDebug( __METHOD__ . ": talk page owner doesn't want notifications\n" );
 602                         }
 603                 }
 604                 return false;
 605         }
 606
 607         /**
 608          * Generate the generic "this page has been changed" e-mail text.
 609          */
 610         private function composeCommonMailtext() {
 611                 global $wgPasswordSender, $wgPasswordSenderName, $wgNoReplyAddress;
 612                 global $wgEnotifFromEditor, $wgEnotifRevealEditorAddress;
 613                 global $wgEnotifImpersonal, $wgEnotifUseRealName;
 614
 615                 $this->composed_common = true;
 616
 617                 # You as the WikiAdmin and Sysops can make use of plenty of
 618                 # named variables when composing your notification emails while
 619                 # simply editing the Meta pages
 620
 621                 $keys = array();
 622                 $postTransformKeys = array();
 623
 624                 if ( $this->oldid ) {
 625                         // Always show a link to the diff which triggered the mail. See bug 32210.
 626                         $keys['$NEWPAGE'] = wfMsgForContent( 'enotif_lastdiff',
 627                                 $this->title->getCanonicalUrl( 'diff=next&oldid=' . $this->oldid ) );
 628                         if ( !$wgEnotifImpersonal ) {
 629                                 // For personal mail, also show a link to the diff of all changes
 630                                 // since last visited.
 631                                 $keys['$NEWPAGE'] .= " \n" . wfMsgForContent( 'enotif_lastvisited',
 632                                         $this->title->getCanonicalUrl( 'diff=0&oldid=' . $this->oldid ) );
 633                         }
 634                         $keys['$OLDID']   = $this->oldid;
 635                         $keys['$CHANGEDORCREATED'] = wfMsgForContent( 'changed' );
 636                 } else {
 637                         $keys['$NEWPAGE'] = wfMsgForContent( 'enotif_newpagetext' );
 638                         # clear $OLDID placeholder in the message template
 639                         $keys['$OLDID']   = '';
 640                         $keys['$CHANGEDORCREATED'] = wfMsgForContent( 'created' );
 641                 }
 642
 643                 $keys['$PAGETITLE'] = $this->title->getPrefixedText();
 644                 $keys['$PAGETITLE_URL'] = $this->title->getCanonicalUrl();
 645                 $keys['$PAGEMINOREDIT'] = $this->minorEdit ? wfMsgForContent( 'minoredit' ) : '';
 646                 $keys['$UNWATCHURL'] = $this->title->getCanonicalUrl( 'action=unwatch' );
 647
 648                 if ( $this->editor->isAnon() ) {
 649                         # real anon (user:xxx.xxx.xxx.xxx)
 650                         $keys['$PAGEEDITOR'] = wfMsgForContent( 'enotif_anon_editor', $this->editor->getName() );
 651                         $keys['$PAGEEDITOR_EMAIL'] = wfMsgForContent( 'noemailtitle' );
 652                 } else {
 653                         $keys['$PAGEEDITOR'] = $wgEnotifUseRealName ? $this->editor->getRealName() : $this->editor->getName();
 654                         $emailPage = SpecialPage::getSafeTitleFor( 'Emailuser', $this->editor->getName() );
 655                         $keys['$PAGEEDITOR_EMAIL'] = $emailPage->getCanonicalUrl();
 656                 }
 657
 658                 $keys['$PAGEEDITOR_WIKI'] = $this->editor->getUserPage()->getCanonicalUrl();
 659
 660                 # Replace this after transforming the message, bug 35019
 661                 $postTransformKeys['$PAGESUMMARY'] = $this->summary == '' ? ' - ' : $this->summary;
 662
 663                 # Now build message's subject and body
 664
 665                 $subject = wfMsgExt( 'enotif_subject', 'content' );
 666                 $subject = strtr( $subject, $keys );
 667                 $subject = MessageCache::singleton()->transform( $subject, false, null, $this->title );
 668                 $this->subject = strtr( $subject, $postTransformKeys );
 669
 670                 $body = wfMsgExt( 'enotif_body', 'content' );
 671                 $body = strtr( $body, $keys );
 672                 $body = MessageCache::singleton()->transform( $body, false, null, $this->title );
 673                 $this->body = wordwrap( strtr( $body, $postTransformKeys ), 72 );
 674
 675                 # Reveal the page editor's address as REPLY-TO address only if
 676                 # the user has not opted-out and the option is enabled at the
 677                 # global configuration level.
 678                 $adminAddress = new MailAddress( $wgPasswordSender, $wgPasswordSenderName );
 679                 if ( $wgEnotifRevealEditorAddress
 680                         && ( $this->editor->getEmail() != '' )
 681                         && $this->editor->getOption( 'enotifrevealaddr' ) )
 682                 {
 683                         $editorAddress = new MailAddress( $this->editor );
 684                         if ( $wgEnotifFromEditor ) {
 685                                 $this->from    = $editorAddress;
 686                         } else {
 687                                 $this->from    = $adminAddress;
 688                                 $this->replyto = $editorAddress;
 689                         }
 690                 } else {
 691                         $this->from    = $adminAddress;
 692                         $this->replyto = new MailAddress( $wgNoReplyAddress );
 693                 }
 694         }
 695
 696         /**
 697          * Compose a mail to a given user and either queue it for sending, or send it now,
 698          * depending on settings.
 699          *
 700          * Call sendMails() to send any mails that were queued.
 701          * @param $user User
 702          */
 703         function compose( $user ) {
 704                 global $wgEnotifImpersonal;
 705
 706                 if ( !$this->composed_common )
 707                         $this->composeCommonMailtext();
 708
 709                 if ( $wgEnotifImpersonal ) {
 710                         $this->mailTargets[] = new MailAddress( $user );
 711                 } else {
 712                         $this->sendPersonalised( $user );
 713                 }
 714         }
 715
 716         /**
 717          * Send any queued mails
 718          */
 719         function sendMails() {
 720                 global $wgEnotifImpersonal;
 721                 if ( $wgEnotifImpersonal ) {
 722                         $this->sendImpersonal( $this->mailTargets );
 723                 }
 724         }
 725
 726         /**
 727          * Does the per-user customizations to a notification e-mail (name,
 728          * timestamp in proper timezone, etc) and sends it out.
 729          * Returns true if the mail was sent successfully.
 730          *
 731          * @param $watchingUser User object
 732          * @return Boolean
 733          * @private
 734          */
 735         function sendPersonalised( $watchingUser ) {
 736                 global $wgContLang, $wgEnotifUseRealName;
 737                 // From the PHP manual:
 738                 //     Note:  The to parameter cannot be an address in the form of "Something <someone@example.com>".
 739                 //     The mail command will not parse this properly while talking with the MTA.
 740                 $to = new MailAddress( $watchingUser );
 741
 742                 # $PAGEEDITDATE is the time and date of the page change
 743                 # expressed in terms of individual local time of the notification
 744                 # recipient, i.e. watching user
 745                 $body = str_replace(
 746                         array( '$WATCHINGUSERNAME',
 747                                 '$PAGEEDITDATE',
 748                                 '$PAGEEDITTIME' ),
 749                         array( $wgEnotifUseRealName ? $watchingUser->getRealName() : $watchingUser->getName(),
 750                                 $wgContLang->userDate( $this->timestamp, $watchingUser ),
 751                                 $wgContLang->userTime( $this->timestamp, $watchingUser ) ),
 752                         $this->body );
 753
 754                 return UserMailer::send( $to, $this->from, $this->subject, $body, $this->replyto );
 755         }
 756
 757         /**
 758          * Same as sendPersonalised but does impersonal mail suitable for bulk
 759          * mailing.  Takes an array of MailAddress objects.
 760          * @return Status
 761          */
 762         function sendImpersonal( $addresses ) {
 763                 global $wgContLang;
 764
 765                 if ( empty( $addresses ) )
 766                         return;
 767
 768                 $body = str_replace(
 769                                 array( '$WATCHINGUSERNAME',
 770                                         '$PAGEEDITDATE',
 771                                         '$PAGEEDITTIME' ),
 772                                 array( wfMsgForContent( 'enotif_impersonal_salutation' ),
 773                                         $wgContLang->date( $this->timestamp, false, false ),
 774                                         $wgContLang->time( $this->timestamp, false, false ) ),
 775                                 $this->body );
 776
 777                 return UserMailer::send( $addresses, $this->from, $this->subject, $body, $this->replyto );
 778         }
 779
 780 } # end of class EmailNotification