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          * @throws MWException
 156          * @return Status object
 157          */
 158         public static function send( $to, $from, $subject, $body, $replyto = null, $contentType = 'text/plain; charset=UTF-8' ) {
 159                 global $wgSMTP, $wgEnotifMaxRecips, $wgAdditionalMailParams;
 160
 161                 if ( !is_array( $to ) ) {
 162                         $to = array( $to );
 163                 }
 164
 165                 wfDebug( __METHOD__ . ': sending mail to ' . implode( ', ', $to ) . "\n" );
 166
 167                 # Make sure we have at least one address
 168                 $has_address = false;
 169                 foreach ( $to as $u ) {
 170                         if ( $u->address ) {
 171                                 $has_address = true;
 172                                 break;
 173                         }
 174                 }
 175                 if ( !$has_address ) {
 176                         return Status::newFatal( 'user-mail-no-addy' );
 177                 }
 178
 179                 # Forge email headers
 180                 # -------------------
 181                 #
 182                 # WARNING
 183                 #
 184                 # DO NOT add To: or Subject: headers at this step. They need to be
 185                 # handled differently depending upon the mailer we are going to use.
 186                 #
 187                 # To:
 188                 #  PHP mail() first argument is the mail receiver. The argument is
 189                 #  used as a recipient destination and as a To header.
 190                 #
 191                 #  PEAR mailer has a recipient argument which is only used to
 192                 #  send the mail. If no To header is given, PEAR will set it to
 193                 #  to 'undisclosed-recipients:'.
 194                 #
 195                 #  NOTE: To: is for presentation, the actual recipient is specified
 196                 #  by the mailer using the Rcpt-To: header.
 197                 #
 198                 # Subject:
 199                 #  PHP mail() second argument to pass the subject, passing a Subject
 200                 #  as an additional header will result in a duplicate header.
 201                 #
 202                 #  PEAR mailer should be passed a Subject header.
 203                 #
 204                 # -- hashar 20120218
 205
 206                 $headers['From'] = $from->toString();
 207                 $headers['Return-Path'] = $from->address;
 208
 209                 if ( $replyto ) {
 210                         $headers['Reply-To'] = $replyto->toString();
 211                 }
 212
 213                 $headers['Date'] = date( 'r' );
 214                 $headers['MIME-Version'] = '1.0';
 215                 $headers['Content-type'] = ( is_null( $contentType ) ?
 216                         'text/plain; charset=UTF-8' : $contentType );
 217                 $headers['Content-transfer-encoding'] = '8bit';
 218
 219                 $headers['Message-ID'] = self::makeMsgId();
 220                 $headers['X-Mailer'] = 'MediaWiki mailer';
 221
 222                 $ret = wfRunHooks( 'AlternateUserMailer', array( $headers, $to, $from, $subject, $body ) );
 223                 if ( $ret === false ) {
 224                         return Status::newGood();
 225                 } elseif ( $ret !== true ) {
 226                         return Status::newFatal( 'php-mail-error', $ret );
 227                 }
 228
 229                 if ( is_array( $wgSMTP ) ) {
 230                         #
 231                         # PEAR MAILER
 232                         #
 233
 234                         if ( function_exists( 'stream_resolve_include_path' ) ) {
 235                                 $found = stream_resolve_include_path( 'Mail.php' );
 236                         } else {
 237                                 $found = Fallback::stream_resolve_include_path( 'Mail.php' );
 238                         }
 239                         if ( !$found ) {
 240                                 throw new MWException( 'PEAR mail package is not installed' );
 241                         }
 242                         require_once( 'Mail.php' );
 243
 244                         wfSuppressWarnings();
 245
 246                         // Create the mail object using the Mail::factory method
 247                         $mail_object =& Mail::factory( 'smtp', $wgSMTP );
 248                         if ( PEAR::isError( $mail_object ) ) {
 249                                 wfDebug( "PEAR::Mail factory failed: " . $mail_object->getMessage() . "\n" );
 250                                 wfRestoreWarnings();
 251                                 return Status::newFatal( 'pear-mail-error', $mail_object->getMessage() );
 252                         }
 253
 254                         wfDebug( "Sending mail via PEAR::Mail\n" );
 255
 256                         $headers['Subject'] = self::quotedPrintable( $subject );
 257
 258                         # When sending only to one recipient, shows it its email using To:
 259                         if ( count( $to ) == 1 ) {
 260                                 $headers['To'] = $to[0]->toString();
 261                         }
 262
 263                         # Split jobs since SMTP servers tends to limit the maximum
 264                         # number of possible recipients.
 265                         $chunks = array_chunk( $to, $wgEnotifMaxRecips );
 266                         foreach ( $chunks as $chunk ) {
 267                                 $status = self::sendWithPear( $mail_object, $chunk, $headers, $body );
 268                                 # FIXME : some chunks might be sent while others are not!
 269                                 if ( !$status->isOK() ) {
 270                                         wfRestoreWarnings();
 271                                         return $status;
 272                                 }
 273                         }
 274                         wfRestoreWarnings();
 275                         return Status::newGood();
 276                 } else {
 277                         #
 278                         # PHP mail()
 279                         #
 280
 281                         # Line endings need to be different on Unix and Windows due to
 282                         # the bug described at http://trac.wordpress.org/ticket/2603
 283                         if ( wfIsWindows() ) {
 284                                 $body = str_replace( "\n", "\r\n", $body );
 285                                 $endl = "\r\n";
 286                         } else {
 287                                 $endl = "\n";
 288                         }
 289
 290                         if( count($to) > 1 ) {
 291                                 $headers['To'] = 'undisclosed-recipients:;';
 292                         }
 293                         $headers = self::arrayToHeaderString( $headers, $endl );
 294
 295                         wfDebug( "Sending mail via internal mail() function\n" );
 296
 297                         self::$mErrorString = '';
 298                         $html_errors = ini_get( 'html_errors' );
 299                         ini_set( 'html_errors', '0' );
 300                         set_error_handler( 'UserMailer::errorHandler' );
 301
 302                         $safeMode = wfIniGetBool( 'safe_mode' );
 303                         foreach ( $to as $recip ) {
 304                                 if ( $safeMode ) {
 305                                         $sent = mail( $recip, self::quotedPrintable( $subject ), $body, $headers );
 306                                 } else {
 307                                         $sent = mail( $recip, self::quotedPrintable( $subject ), $body, $headers, $wgAdditionalMailParams );
 308                                 }
 309                         }
 310
 311                         restore_error_handler();
 312                         ini_set( 'html_errors', $html_errors );
 313
 314                         if ( self::$mErrorString ) {
 315                                 wfDebug( "Error sending mail: " . self::$mErrorString . "\n" );
 316                                 return Status::newFatal( 'php-mail-error', self::$mErrorString );
 317                         } elseif ( ! $sent ) {
 318                                 // mail function only tells if there's an error
 319                                 wfDebug( "Unknown error sending mail\n" );
 320                                 return Status::newFatal( 'php-mail-error-unknown' );
 321                         } else {
 322                                 return Status::newGood();
 323                         }
 324                 }
 325         }
 326
 327         /**
 328          * Set the mail error message in self::$mErrorString
 329          *
 330          * @param $code Integer: error number
 331          * @param $string String: error message
 332          */
 333         static function errorHandler( $code, $string ) {
 334                 self::$mErrorString = preg_replace( '/^mail\(\)(\s*\[.*?\])?: /', '', $string );
 335         }
 336
 337         /**
 338          * Converts a string into a valid RFC 822 "phrase", such as is used for the sender name
 339          * @param $phrase string
 340          * @return string
 341          */
 342         public static function rfc822Phrase( $phrase ) {
 343                 $phrase = strtr( $phrase, array( "\r" => '', "\n" => '', '"' => '' ) );
 344                 return '"' . $phrase . '"';
 345         }
 346
 347         /**
 348          * Converts a string into quoted-printable format
 349          * @since 1.17
 350          * @return string
 351          */
 352         public static function quotedPrintable( $string, $charset = '' ) {
 353                 # Probably incomplete; see RFC 2045
 354                 if( empty( $charset ) ) {
 355                         $charset = 'UTF-8';
 356                 }
 357                 $charset = strtoupper( $charset );
 358                 $charset = str_replace( 'ISO-8859', 'ISO8859', $charset ); // ?
 359
 360                 $illegal = '\x00-\x08\x0b\x0c\x0e-\x1f\x7f-\xff=';
 361                 $replace = $illegal . '\t ?_';
 362                 if( !preg_match( "/[$illegal]/", $string ) ) {
 363                         return $string;
 364                 }
 365                 $out = "=?$charset?Q?";
 366                 $out .= preg_replace_callback( "/([$replace])/",
 367                         array( __CLASS__, 'quotedPrintableCallback' ), $string );
 368                 $out .= '?=';
 369                 return $out;
 370         }
 371
 372         protected static function quotedPrintableCallback( $matches ) {
 373                 return sprintf( "=%02X", ord( $matches[1] ) );
 374         }
 375 }
 376
 377 /**
 378  * This module processes the email notifications when the current page is
 379  * changed. It looks up the table watchlist to find out which users are watching
 380  * that page.
 381  *
 382  * The current implementation sends independent emails to each watching user for
 383  * the following reason:
 384  *
 385  * - Each watching user will be notified about the page edit time expressed in
 386  * his/her local time (UTC is shown additionally). To achieve this, we need to
 387  * find the individual timeoffset of each watching user from the preferences..
 388  *
 389  * Suggested improvement to slack down the number of sent emails: We could think
 390  * of sending out bulk mails (bcc:user1,user2...) for all these users having the
 391  * same timeoffset in their preferences.
 392  *
 393  * Visit the documentation pages under http://meta.wikipedia.com/Enotif
 394  *
 395  *
 396  */
 397 class EmailNotification {
 398         protected $subject, $body, $replyto, $from;
 399         protected $timestamp, $summary, $minorEdit, $oldid, $composed_common, $pageStatus;
 400         protected $mailTargets = array();
 401
 402         /**
 403          * @var Title
 404          */
 405         protected $title;
 406
 407         /**
 408          * @var User
 409          */
 410         protected $editor;
 411
 412         /**
 413          * Send emails corresponding to the user $editor editing the page $title.
 414          * Also updates wl_notificationtimestamp.
 415          *
 416          * May be deferred via the job queue.
 417          *
 418          * @param $editor User object
 419          * @param $title Title object
 420          * @param $timestamp
 421          * @param $summary
 422          * @param $minorEdit
 423          * @param $oldid (default: false)
 424          * @param $pageStatus (default: 'changed')
 425          */
 426         public function notifyOnPageChange( $editor, $title, $timestamp, $summary, $minorEdit, $oldid = false, $pageStatus = 'changed' ) {
 427                 global $wgEnotifUseJobQ, $wgEnotifWatchlist, $wgShowUpdatedMarker, $wgEnotifMinorEdits,
 428                         $wgUsersNotifiedOnAllChanges, $wgEnotifUserTalk;
 429
 430                 if ( $title->getNamespace() < 0 ) {
 431                         return;
 432                 }
 433
 434                 // Build a list of users to notfiy
 435                 $watchers = array();
 436                 if ( $wgEnotifWatchlist || $wgShowUpdatedMarker ) {
 437                         $dbw = wfGetDB( DB_MASTER );
 438                         $res = $dbw->select( array( 'watchlist' ),
 439                                 array( 'wl_user' ),
 440                                 array(
 441                                         'wl_user != ' . intval( $editor->getID() ),
 442                                         'wl_namespace' => $title->getNamespace(),
 443                                         'wl_title' => $title->getDBkey(),
 444                                         'wl_notificationtimestamp IS NULL',
 445                                 ), __METHOD__
 446                         );
 447                         foreach ( $res as $row ) {
 448                                 $watchers[] = intval( $row->wl_user );
 449                         }
 450                         if ( $watchers ) {
 451                                 // Update wl_notificationtimestamp for all watching users except the editor
 452                                 $fname = __METHOD__;
 453                                 $dbw->onTransactionIdle(
 454                                         function() use ( $dbw, $timestamp, $watchers, $title, $fname ) {
 455                                                 $dbw->begin( $fname );
 456                                                 $dbw->update( 'watchlist',
 457                                                         array( /* SET */
 458                                                                 'wl_notificationtimestamp' => $dbw->timestamp( $timestamp )
 459                                                         ), array( /* WHERE */
 460                                                                 'wl_user'      => $watchers,
 461                                                                 'wl_namespace' => $title->getNamespace(),
 462                                                                 'wl_title'     => $title->getDBkey(),
 463                                                         ), $fname
 464                                                 );
 465                                                 $dbw->commit( $fname );
 466                                         }
 467                                 );
 468                         }
 469                 }
 470
 471                 $sendEmail = true;
 472                 // If nobody is watching the page, and there are no users notified on all changes
 473                 // don't bother creating a job/trying to send emails
 474                 // $watchers deals with $wgEnotifWatchlist
 475                 if ( !count( $watchers ) && !count( $wgUsersNotifiedOnAllChanges ) ) {
 476                         $sendEmail = false;
 477                         // Only send notification for non minor edits, unless $wgEnotifMinorEdits
 478                         if ( !$minorEdit || ( $wgEnotifMinorEdits && !$editor->isAllowed( 'nominornewtalk' ) ) ) {
 479                                 $isUserTalkPage = ( $title->getNamespace() == NS_USER_TALK );
 480                                 if ( $wgEnotifUserTalk && $isUserTalkPage && $this->canSendUserTalkEmail( $editor, $title, $minorEdit ) ) {
 481                                         $sendEmail = true;
 482                                 }
 483                         }
 484                 }
 485
 486                 if ( !$sendEmail ) {
 487                         return;
 488                 }
 489                 if ( $wgEnotifUseJobQ ) {
 490                         $params = array(
 491                                 'editor' => $editor->getName(),
 492                                 'editorID' => $editor->getID(),
 493                                 'timestamp' => $timestamp,
 494                                 'summary' => $summary,
 495                                 'minorEdit' => $minorEdit,
 496                                 'oldid' => $oldid,
 497                                 'watchers' => $watchers,
 498                                 'pageStatus' => $pageStatus
 499                         );
 500                         $job = new EnotifNotifyJob( $title, $params );
 501                         JobQueueGroup::singleton()->push( $job );
 502                 } else {
 503                         $this->actuallyNotifyOnPageChange( $editor, $title, $timestamp, $summary, $minorEdit, $oldid, $watchers, $pageStatus );
 504                 }
 505         }
 506
 507         /**
 508          * Immediate version of notifyOnPageChange().
 509          *
 510          * Send emails corresponding to the user $editor editing the page $title.
 511          * Also updates wl_notificationtimestamp.
 512          *
 513          * @param $editor User object
 514          * @param $title Title object
 515          * @param $timestamp string Edit timestamp
 516          * @param $summary string Edit summary
 517          * @param $minorEdit bool
 518          * @param $oldid int Revision ID
 519          * @param $watchers array of user IDs
 520          */
 521         public function actuallyNotifyOnPageChange( $editor, $title, $timestamp, $summary, $minorEdit,
 522                 $oldid, $watchers, $pageStatus = 'changed' ) {
 523                 # we use $wgPasswordSender as sender's address
 524                 global $wgEnotifWatchlist;
 525                 global $wgEnotifMinorEdits, $wgEnotifUserTalk;
 526
 527                 wfProfileIn( __METHOD__ );
 528
 529                 # The following code is only run, if several conditions are met:
 530                 # 1. EmailNotification for pages (other than user_talk pages) must be enabled
 531                 # 2. minor edits (changes) are only regarded if the global flag indicates so
 532
 533                 $isUserTalkPage = ( $title->getNamespace() == NS_USER_TALK );
 534
 535                 $this->title = $title;
 536                 $this->timestamp = $timestamp;
 537                 $this->summary = $summary;
 538                 $this->minorEdit = $minorEdit;
 539                 $this->oldid = $oldid;
 540                 $this->editor = $editor;
 541                 $this->composed_common = false;
 542                 $this->pageStatus = $pageStatus;
 543
 544                 $formattedPageStatus = array( 'deleted', 'created', 'moved', 'restored', 'changed' );
 545
 546                 wfRunHooks( 'UpdateUserMailerFormattedPageStatus', array( &$formattedPageStatus ) );
 547                 if ( !in_array( $this->pageStatus, $formattedPageStatus ) ) {
 548                         throw new MWException( 'Not a valid page status!' );
 549                 }
 550
 551                 $userTalkId = false;
 552
 553                 if ( !$minorEdit || ( $wgEnotifMinorEdits && !$editor->isAllowed( 'nominornewtalk' ) ) ) {
 554
 555                         if ( $wgEnotifUserTalk && $isUserTalkPage && $this->canSendUserTalkEmail( $editor, $title, $minorEdit ) ) {
 556                                 $targetUser = User::newFromName( $title->getText() );
 557                                 $this->compose( $targetUser );
 558                                 $userTalkId = $targetUser->getId();
 559                         }
 560
 561                         if ( $wgEnotifWatchlist ) {
 562                                 // Send updates to watchers other than the current editor
 563                                 $userArray = UserArray::newFromIDs( $watchers );
 564                                 foreach ( $userArray as $watchingUser ) {
 565                                         if ( $watchingUser->getOption( 'enotifwatchlistpages' ) &&
 566                                                 ( !$minorEdit || $watchingUser->getOption( 'enotifminoredits' ) ) &&
 567                                                 $watchingUser->isEmailConfirmed() &&
 568                                                 $watchingUser->getID() != $userTalkId )
 569                                         {
 570                                                 $this->compose( $watchingUser );
 571                                         }
 572                                 }
 573                         }
 574                 }
 575
 576                 global $wgUsersNotifiedOnAllChanges;
 577                 foreach ( $wgUsersNotifiedOnAllChanges as $name ) {
 578                         if ( $editor->getName() == $name ) {
 579                                 // No point notifying the user that actually made the change!
 580                                 continue;
 581                         }
 582                         $user = User::newFromName( $name );
 583                         $this->compose( $user );
 584                 }
 585
 586                 $this->sendMails();
 587                 wfProfileOut( __METHOD__ );
 588         }
 589
 590         /**
 591          * @param $editor User
 592          * @param $title Title bool
 593          * @param $minorEdit
 594          * @return bool
 595          */
 596         private function canSendUserTalkEmail( $editor, $title, $minorEdit ) {
 597                 global $wgEnotifUserTalk;
 598                 $isUserTalkPage = ( $title->getNamespace() == NS_USER_TALK );
 599
 600                 if ( $wgEnotifUserTalk && $isUserTalkPage ) {
 601                         $targetUser = User::newFromName( $title->getText() );
 602
 603                         if ( !$targetUser || $targetUser->isAnon() ) {
 604                                 wfDebug( __METHOD__ . ": user talk page edited, but user does not exist\n" );
 605                         } elseif ( $targetUser->getId() == $editor->getId() ) {
 606                                 wfDebug( __METHOD__ . ": user edited their own talk page, no notification sent\n" );
 607                         } elseif ( $targetUser->getOption( 'enotifusertalkpages' ) &&
 608                                 ( !$minorEdit || $targetUser->getOption( 'enotifminoredits' ) ) )
 609                         {
 610                                 if ( $targetUser->isEmailConfirmed() ) {
 611                                         wfDebug( __METHOD__ . ": sending talk page update notification\n" );
 612                                         return true;
 613                                 } else {
 614                                         wfDebug( __METHOD__ . ": talk page owner doesn't have validated email\n" );
 615                                 }
 616                         } else {
 617                                 wfDebug( __METHOD__ . ": talk page owner doesn't want notifications\n" );
 618                         }
 619                 }
 620                 return false;
 621         }
 622
 623         /**
 624          * Generate the generic "this page has been changed" e-mail text.
 625          */
 626         private function composeCommonMailtext() {
 627                 global $wgPasswordSender, $wgPasswordSenderName, $wgNoReplyAddress;
 628                 global $wgEnotifFromEditor, $wgEnotifRevealEditorAddress;
 629                 global $wgEnotifImpersonal, $wgEnotifUseRealName;
 630
 631                 $this->composed_common = true;
 632
 633                 # You as the WikiAdmin and Sysops can make use of plenty of
 634                 # named variables when composing your notification emails while
 635                 # simply editing the Meta pages
 636
 637                 $keys = array();
 638                 $postTransformKeys = array();
 639                 $pageTitleUrl = $this->title->getCanonicalUrl();
 640                 $pageTitle = $this->title->getPrefixedText();
 641
 642                 if ( $this->oldid ) {
 643                         // Always show a link to the diff which triggered the mail. See bug 32210.
 644                         $keys['$NEWPAGE'] = "\n\n" . wfMessage( 'enotif_lastdiff',
 645                                 $this->title->getCanonicalUrl( 'diff=next&oldid=' . $this->oldid ) )
 646                                 ->inContentLanguage()->text();
 647
 648                         if ( !$wgEnotifImpersonal ) {
 649                                 // For personal mail, also show a link to the diff of all changes
 650                                 // since last visited.
 651                                 $keys['$NEWPAGE'] .= "\n\n" .  wfMessage( 'enotif_lastvisited',
 652                                         $this->title->getCanonicalUrl( 'diff=0&oldid=' . $this->oldid ) )
 653                                         ->inContentLanguage()->text();
 654                         }
 655                         $keys['$OLDID']   = $this->oldid;
 656                 } else {
 657                         # clear $OLDID placeholder in the message template
 658                         $keys['$OLDID']   = '';
 659                         $keys['$NEWPAGE'] = '';
 660                 }
 661
 662                 $keys['$PAGETITLE'] = $this->title->getPrefixedText();
 663                 $keys['$PAGETITLE_URL'] = $this->title->getCanonicalUrl();
 664                 $keys['$PAGEMINOREDIT'] = $this->minorEdit ?
 665                         wfMessage( 'minoredit' )->inContentLanguage()->text() : '';
 666                 $keys['$UNWATCHURL'] = $this->title->getCanonicalUrl( 'action=unwatch' );
 667
 668                 if ( $this->editor->isAnon() ) {
 669                         # real anon (user:xxx.xxx.xxx.xxx)
 670                         $keys['$PAGEEDITOR'] = wfMessage( 'enotif_anon_editor', $this->editor->getName() )
 671                                 ->inContentLanguage()->text();
 672                         $keys['$PAGEEDITOR_EMAIL'] = wfMessage( 'noemailtitle' )->inContentLanguage()->text();
 673
 674                 } else {
 675                         $keys['$PAGEEDITOR'] = $wgEnotifUseRealName ? $this->editor->getRealName() : $this->editor->getName();
 676                         $emailPage = SpecialPage::getSafeTitleFor( 'Emailuser', $this->editor->getName() );
 677                         $keys['$PAGEEDITOR_EMAIL'] = $emailPage->getCanonicalUrl();
 678                 }
 679
 680                 $keys['$PAGEEDITOR_WIKI'] = $this->editor->getUserPage()->getCanonicalUrl();
 681
 682                 # Replace this after transforming the message, bug 35019
 683                 $postTransformKeys['$PAGESUMMARY'] = $this->summary == '' ? ' - ' : $this->summary;
 684
 685                 # Now build message's subject and body
 686                 $this->subject = wfMessage( 'enotif_subject_' . $this->pageStatus )->inContentLanguage()
 687                         ->params( $pageTitle, $keys['$PAGEEDITOR'] )->escaped();
 688
 689                 $keys['$PAGEINTRO'] = wfMessage( 'enotif_body_intro_' . $this->pageStatus )
 690                         ->inContentLanguage()->params( $pageTitle, $keys['$PAGEEDITOR'], $pageTitleUrl )
 691                         ->escaped();
 692
 693                 $body = wfMessage( 'enotif_body' )->inContentLanguage()->plain();
 694                 $body = strtr( $body, $keys );
 695                 $body = MessageCache::singleton()->transform( $body, false, null, $this->title );
 696                 $this->body = wordwrap( strtr( $body, $postTransformKeys ), 72 );
 697
 698                 # Reveal the page editor's address as REPLY-TO address only if
 699                 # the user has not opted-out and the option is enabled at the
 700                 # global configuration level.
 701                 $adminAddress = new MailAddress( $wgPasswordSender, $wgPasswordSenderName );
 702                 if ( $wgEnotifRevealEditorAddress
 703                         && ( $this->editor->getEmail() != '' )
 704                         && $this->editor->getOption( 'enotifrevealaddr' ) )
 705                 {
 706                         $editorAddress = new MailAddress( $this->editor );
 707                         if ( $wgEnotifFromEditor ) {
 708                                 $this->from    = $editorAddress;
 709                         } else {
 710                                 $this->from    = $adminAddress;
 711                                 $this->replyto = $editorAddress;
 712                         }
 713                 } else {
 714                         $this->from    = $adminAddress;
 715                         $this->replyto = new MailAddress( $wgNoReplyAddress );
 716                 }
 717         }
 718
 719         /**
 720          * Compose a mail to a given user and either queue it for sending, or send it now,
 721          * depending on settings.
 722          *
 723          * Call sendMails() to send any mails that were queued.
 724          * @param $user User
 725          */
 726         function compose( $user ) {
 727                 global $wgEnotifImpersonal;
 728
 729                 if ( !$this->composed_common )
 730                         $this->composeCommonMailtext();
 731
 732                 if ( $wgEnotifImpersonal ) {
 733                         $this->mailTargets[] = new MailAddress( $user );
 734                 } else {
 735                         $this->sendPersonalised( $user );
 736                 }
 737         }
 738
 739         /**
 740          * Send any queued mails
 741          */
 742         function sendMails() {
 743                 global $wgEnotifImpersonal;
 744                 if ( $wgEnotifImpersonal ) {
 745                         $this->sendImpersonal( $this->mailTargets );
 746                 }
 747         }
 748
 749         /**
 750          * Does the per-user customizations to a notification e-mail (name,
 751          * timestamp in proper timezone, etc) and sends it out.
 752          * Returns true if the mail was sent successfully.
 753          *
 754          * @param $watchingUser User object
 755          * @return Boolean
 756          * @private
 757          */
 758         function sendPersonalised( $watchingUser ) {
 759                 global $wgContLang, $wgEnotifUseRealName;
 760                 // From the PHP manual:
 761                 //     Note:  The to parameter cannot be an address in the form of "Something <someone@example.com>".
 762                 //     The mail command will not parse this properly while talking with the MTA.
 763                 $to = new MailAddress( $watchingUser );
 764
 765                 # $PAGEEDITDATE is the time and date of the page change
 766                 # expressed in terms of individual local time of the notification
 767                 # recipient, i.e. watching user
 768                 $body = str_replace(
 769                         array( '$WATCHINGUSERNAME',
 770                                 '$PAGEEDITDATE',
 771                                 '$PAGEEDITTIME' ),
 772                         array( $wgEnotifUseRealName ? $watchingUser->getRealName() : $watchingUser->getName(),
 773                                 $wgContLang->userDate( $this->timestamp, $watchingUser ),
 774                                 $wgContLang->userTime( $this->timestamp, $watchingUser ) ),
 775                         $this->body );
 776
 777                 return UserMailer::send( $to, $this->from, $this->subject, $body, $this->replyto );
 778         }
 779
 780         /**
 781          * Same as sendPersonalised but does impersonal mail suitable for bulk
 782          * mailing.  Takes an array of MailAddress objects.
 783          * @return Status
 784          */
 785         function sendImpersonal( $addresses ) {
 786                 global $wgContLang;
 787
 788                 if ( empty( $addresses ) )
 789                         return;
 790
 791                 $body = str_replace(
 792                                 array( '$WATCHINGUSERNAME',
 793                                         '$PAGEEDITDATE',
 794                                         '$PAGEEDITTIME' ),
 795                                 array( wfMessage( 'enotif_impersonal_salutation' )->inContentLanguage()->text(),
 796                                         $wgContLang->date( $this->timestamp, false, false ),
 797                                         $wgContLang->time( $this->timestamp, false, false ) ),
 798                                 $this->body );
 799
 800                 return UserMailer::send( $addresses, $this->from, $this->subject, $body, $this->replyto );
 801         }
 802
 803 } # end of class EmailNotification