includes/UserMailer.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @author <brion@pobox.com>
  19  * @author <mail@tgries.de>
  20  * @author Tim Starling
  21  *
  22  */
  23
  24
  25 /**
  26  * Stores a single person's name and email address.
  27  * These are passed in via the constructor, and will be returned in SMTP
  28  * header format when requested.
  29  */
  30 class MailAddress {
  31         /**
  32          * @param $address Mixed: string with an email address, or a User object
  33          * @param $name String: human-readable name if a string address is given
  34          */
  35         function __construct( $address, $name = null, $realName = null ) {
  36                 if( is_object( $address ) && $address instanceof User ) {
  37                         $this->address = $address->getEmail();
  38                         $this->name = $address->getName();
  39                         $this->realName = $address->getRealName();
  40                 } else {
  41                         $this->address = strval( $address );
  42                         $this->name = strval( $name );
  43                         $this->reaName = strval( $realName );
  44                 }
  45         }
  46
  47         /**
  48          * Return formatted and quoted address to insert into SMTP headers
  49          * @return string
  50          */
  51         function toString() {
  52                 # PHP's mail() implementation under Windows is somewhat shite, and
  53                 # can't handle "Joe Bloggs <joe@bloggs.com>" format email addresses,
  54                 # so don't bother generating them
  55                 if( $this->name != '' && !wfIsWindows() ) {
  56                         global $wgEnotifUseRealName;
  57                         $name = ( $wgEnotifUseRealName && $this->realName ) ? $this->realName : $this->name;
  58                         $quoted = wfQuotedPrintable( $name );
  59                         if( strpos( $quoted, '.' ) !== false || strpos( $quoted, ',' ) !== false ) {
  60                                 $quoted = '"' . $quoted . '"';
  61                         }
  62                         return "$quoted <{$this->address}>";
  63                 } else {
  64                         return $this->address;
  65                 }
  66         }
  67
  68         function __toString() {
  69                 return $this->toString();
  70         }
  71 }
  72
  73
  74 /**
  75  * Collection of static functions for sending mail
  76  */
  77 class UserMailer {
  78         /**
  79          * Send mail using a PEAR mailer
  80          */
  81         protected static function sendWithPear($mailer, $dest, $headers, $body)
  82         {
  83                 $mailResult = $mailer->send($dest, $headers, $body);
  84
  85                 # Based on the result return an error string,
  86                 if( PEAR::isError( $mailResult ) ) {
  87                         wfDebug( "PEAR::Mail failed: " . $mailResult->getMessage() . "\n" );
  88                         return new WikiError( $mailResult->getMessage() );
  89                 } else {
  90                         return true;
  91                 }
  92         }
  93
  94         /**
  95          * This function will perform a direct (authenticated) login to
  96          * a SMTP Server to use for mail relaying if 'wgSMTP' specifies an
  97          * array of parameters. It requires PEAR:Mail to do that.
  98          * Otherwise it just uses the standard PHP 'mail' function.
  99          *
 100          * @param $to MailAddress: recipient's email
 101          * @param $from MailAddress: sender's email
 102          * @param $subject String: email's subject.
 103          * @param $body String: email's text.
 104          * @param $replyto String: optional reply-to email (default: null).
 105          * @param $contentType String: optional custom Content-Type
 106          * @return mixed True on success, a WikiError object on failure.
 107          */
 108         static function send( $to, $from, $subject, $body, $replyto=null, $contentType=null ) {
 109                 global $wgSMTP, $wgOutputEncoding, $wgErrorString, $wgEnotifImpersonal;
 110                 global $wgEnotifMaxRecips;
 111
 112                 if ( is_array( $to ) ) {
 113                         wfDebug( __METHOD__.': sending mail to ' . implode( ',', $to ) . "\n" );
 114                 } else {
 115                         wfDebug( __METHOD__.': sending mail to ' . implode( ',', array( $to->toString() ) ) . "\n" );
 116                 }
 117
 118                 if (is_array( $wgSMTP )) {
 119                         require_once( 'Mail.php' );
 120
 121                         $msgid = str_replace(" ", "_", microtime());
 122                         if (function_exists('posix_getpid'))
 123                                 $msgid .= '.' . posix_getpid();
 124
 125                         if (is_array($to)) {
 126                                 $dest = array();
 127                                 foreach ($to as $u)
 128                                         $dest[] = $u->address;
 129                         } else
 130                                 $dest = $to->address;
 131
 132                         $headers['From'] = $from->toString();
 133
 134                         if ($wgEnotifImpersonal) {
 135                                 $headers['To'] = 'undisclosed-recipients:;';
 136                         }
 137                         else {
 138                                 $headers['To'] = implode( ", ", (array )$dest );
 139                         }
 140
 141                         if ( $replyto ) {
 142                                 $headers['Reply-To'] = $replyto->toString();
 143                         }
 144                         $headers['Subject'] = wfQuotedPrintable( $subject );
 145                         $headers['Date'] = date( 'r' );
 146                         $headers['MIME-Version'] = '1.0';
 147                         $headers['Content-type'] = (is_null($contentType) ?
 148                                         'text/plain; charset='.$wgOutputEncoding : $contentType);
 149                         $headers['Content-transfer-encoding'] = '8bit';
 150                         $headers['Message-ID'] = "<$msgid@" . $wgSMTP['IDHost'] . '>'; // FIXME
 151                         $headers['X-Mailer'] = 'MediaWiki mailer';
 152
 153                         // Create the mail object using the Mail::factory method
 154                         $mail_object =& Mail::factory('smtp', $wgSMTP);
 155                         if( PEAR::isError( $mail_object ) ) {
 156                                 wfDebug( "PEAR::Mail factory failed: " . $mail_object->getMessage() . "\n" );
 157                                 return new WikiError( $mail_object->getMessage() );
 158                         }
 159
 160                         wfDebug( "Sending mail via PEAR::Mail to $dest\n" );
 161                         $chunks = array_chunk( (array)$dest, $wgEnotifMaxRecips );
 162                         foreach ($chunks as $chunk) {
 163                                 $e = self::sendWithPear($mail_object, $chunk, $headers, $body);
 164                                 if( WikiError::isError( $e ) )
 165                                         return $e;
 166                         }
 167                 } else  {
 168                         # In the following $headers = expression we removed "Reply-To: {$from}\r\n" , because it is treated differently
 169                         # (fifth parameter of the PHP mail function, see some lines below)
 170
 171                         # Line endings need to be different on Unix and Windows due to
 172                         # the bug described at http://trac.wordpress.org/ticket/2603
 173                         if ( wfIsWindows() ) {
 174                                 $body = str_replace( "\n", "\r\n", $body );
 175                                 $endl = "\r\n";
 176                         } else {
 177                                 $endl = "\n";
 178                         }
 179                         $ctype = (is_null($contentType) ?
 180                                         'text/plain; charset='.$wgOutputEncoding : $contentType);
 181                         $headers =
 182                                 "MIME-Version: 1.0$endl" .
 183                                 "Content-type: $ctype$endl" .
 184                                 "Content-Transfer-Encoding: 8bit$endl" .
 185                                 "X-Mailer: MediaWiki mailer$endl".
 186                                 'From: ' . $from->toString();
 187                         if ($replyto) {
 188                                 $headers .= "{$endl}Reply-To: " . $replyto->toString();
 189                         }
 190
 191                         $wgErrorString = '';
 192                         $html_errors = ini_get( 'html_errors' );
 193                         ini_set( 'html_errors', '0' );
 194                         set_error_handler( array( 'UserMailer', 'errorHandler' ) );
 195                         wfDebug( "Sending mail via internal mail() function\n" );
 196
 197                         if (function_exists('mail')) {
 198                                 if (is_array($to)) {
 199                                         foreach ($to as $recip) {
 200                                                 $sent = mail( $recip->toString(), wfQuotedPrintable( $subject ), $body, $headers );
 201                                         }
 202                                 } else {
 203                                         $sent = mail( $to->toString(), wfQuotedPrintable( $subject ), $body, $headers );
 204                                 }
 205                         } else {
 206                                 $wgErrorString = 'PHP is not configured to send mail';
 207                         }
 208
 209                         restore_error_handler();
 210                         ini_set( 'html_errors', $html_errors );
 211
 212                         if ( $wgErrorString ) {
 213                                 wfDebug( "Error sending mail: $wgErrorString\n" );
 214                                 return new WikiError( $wgErrorString );
 215                         } elseif (! $sent) {
 216                                 //mail function only tells if there's an error
 217                                 wfDebug( "Error sending mail\n" );
 218                                 return new WikiError( 'mailer error' );
 219                         } else {
 220                                 return true;
 221                         }
 222                 }
 223         }
 224
 225         /**
 226          * Get the mail error message in global $wgErrorString
 227          *
 228          * @param $code Integer: error number
 229          * @param $string String: error message
 230          */
 231         static function errorHandler( $code, $string ) {
 232                 global $wgErrorString;
 233                 $wgErrorString = preg_replace( '/^mail\(\)(\s*\[.*?\])?: /', '', $string );
 234         }
 235
 236         /**
 237          * Converts a string into a valid RFC 822 "phrase", such as is used for the sender name
 238          */
 239         static function rfc822Phrase( $phrase ) {
 240                 $phrase = strtr( $phrase, array( "\r" => '', "\n" => '', '"' => '' ) );
 241                 return '"' . $phrase . '"';
 242         }
 243 }
 244
 245
 246 class EmailNotification {
 247
 248         /*
 249          * Send users an email.
 250          *
 251          * @param $editor User whose action precipitated the notification.
 252          * @param $timestamp of the event.
 253          * @param Callback that returns an an array of Users who will recieve the notification.
 254          * @param Callback that returns an array($keys, $body, $subject) where
 255          *        * $keys is a dictionary whose keys will be replaced with the corresponding
 256          *          values within the subject and body of the message.
 257          *        * $body is the name of the message that will be used for the email body.
 258          *        * $subject is the name of the message that will be used for the subject.
 259          * Both messages are resolved using the content language.
 260          * The messageCompositionFunction is invoked for each recipient user;
 261          * The keys returned are merged with those given by EmailNotification::commonMessageKeys().
 262          * The recipient is appended to the arguments given to messageCompositionFunction.
 263          * Both callbacks are to be given in the same formats accepted by the hook system.
 264          */
 265         function notify($editor, $timestamp, $userListFunction, $messageCompositionFunction) {
 266                 global $wgEnotifUseRealName, $wgEnotifImpersonal;
 267                 global $wgLang;
 268
 269                 $common_keys = self::commonMessageKeys($editor);
 270                 $users = wfInvoke($userListFunction);
 271                 foreach($users as $u) {
 272                         list($user_keys, $body_msg_name, $subj_msg_name) =
 273                                 wfInvoke($messageCompositionFunction, array($u));
 274                         $keys = array_merge($common_keys, $user_keys);
 275
 276                         if( $wgEnotifImpersonal ) {
 277                                 $keys['$WATCHINGUSERNAME'] = wfMsgForContent('enotif_impersonal_salutation');
 278                                 $keys['$PAGEEDITDATE'] = $wgLang->timeanddate($timestamp, true, false, false);
 279                         } else {
 280                                 $keys['$WATCHINGUSERNAME'] = $wgEnotifUseRealName ? $u->getRealName() : $u->getName();
 281                                 $keys['$PAGEEDITDATE'] = $wgLang->timeAndDate($timestamp, true, false,
 282                                         $u->getOption('timecorrection'));
 283                         }
 284
 285                         $subject = strtr(wfMsgForContent( $subj_msg_name ), $keys);
 286                         $body = wordwrap( strtr( wfMsgForContent( $body_msg_name ), $keys ), 72 );
 287
 288                         $to = new MailAddress($u);
 289                         $from = $keys['$FROM_HEADER'];
 290                         $replyto = $keys['$REPLYTO_HEADER'];
 291                         UserMailer::send($to, $from, $subject, $body, $replyto);
 292                 }
 293         }
 294
 295
 296         static function commonMessageKeys($editor) {
 297                 global $wgEnotifUseRealName, $wgEnotifRevealEditorAddress;
 298                 global $wgNoReplyAddress, $wgPasswordSender;
 299
 300                 $keys = array();
 301
 302                 $name = $wgEnotifUseRealName ? $editor->getRealName() : $editor->getName();
 303
 304                 $adminAddress = new MailAddress( $wgPasswordSender, 'WikiAdmin' );
 305                 $editorAddress = new MailAddress( $editor );
 306                 if( $wgEnotifRevealEditorAddress
 307                         && $editor->getEmail() != ''
 308                         && $editor->getOption( 'enotifrevealaddr' ) ) {
 309                         if( $wgEnotifFromEditor ) {
 310                                 $from    = $editorAddress;
 311                         } else {
 312                                 $from    = $adminAddress;
 313                                 $replyto = $editorAddress;
 314                         }
 315                 } else {
 316                         $from    = $adminAddress;
 317                         $replyto = new MailAddress( $wgNoReplyAddress );
 318                 }
 319                 $keys['$FROM_HEADER'] = $from;
 320                 $keys['$REPLYTO_HEADER'] = $replyto;
 321
 322                 if( $editor->isAnon() ) {
 323                         $keys['$PAGEEDITOR'] = wfMsgForContent('enotif_anon_editor', $name);
 324                         $keys['$PAGEEDITOR_EMAIL'] = wfMsgForContent( 'noemailtitle' );
 325                 } else{
 326                         $keys['$PAGEEDITOR'] = $name;
 327                         $keys['$PAGEEDITOR_EMAIL'] = SpecialPage::getSafeTitleFor('Emailuser', $name)->getFullUrl();
 328                 }
 329                 $keys['$PAGEEDITOR_WIKI'] = $editor->getUserPage()->getFullUrl();
 330
 331                 return $keys;
 332         }
 333
 334
 335
 336         /*
 337          * @deprecated
 338          * Use PageChangeNotification::notifyOnPageChange instead.
 339          */
 340         function notifyOnPageChange($editor, $title, $timestamp, $summary, $minorEdit, $oldid = false) {
 341                 PageChangeNotification::notifyOnPageChange($editor, $title, $timestamp, $summary, $minorEdit, $oldid);
 342         }
 343 }
 344
 345 class PageChangeNotification {
 346
 347         /**
 348          * Send emails corresponding to the user $editor editing the page $title.
 349          * Also updates wl_notificationtimestamp.
 350          *
 351          * May be deferred via the job queue.
 352          *
 353          * @param $editor User object
 354          * @param $title Title object
 355          * @param $timestamp
 356          * @param $summary
 357          * @param $minorEdit
 358          * @param $oldid (default: false)
 359          */
 360         static function notifyOnPageChange($editor, $title, $timestamp, $summary, $minorEdit, $oldid = false) {
 361                 global $wgEnotifUseJobQ;
 362
 363                 if( $title->getNamespace() < 0 )
 364                         return;
 365
 366                 if ($wgEnotifUseJobQ) {
 367                         $params = array(
 368                                 "editor" => $editor->getName(),
 369                                 "editorID" => $editor->getID(),
 370                                 "timestamp" => $timestamp,
 371                                 "summary" => $summary,
 372                                 "minorEdit" => $minorEdit,
 373                                 "oldid" => $oldid);
 374                         $job = new EnotifNotifyJob( $title, $params );
 375                         $job->insert();
 376                 } else {
 377                         self::actuallyNotifyOnPageChange($editor, $title, $timestamp, $summary, $minorEdit, $oldid);
 378                 }
 379
 380         }
 381
 382         /*
 383          * Immediate version of notifyOnPageChange().
 384          *
 385          * Send emails corresponding to the user $editor editing the page $title.
 386          * Also updates wl_notificationtimestamp.
 387          *
 388          * @param $editor User object
 389          * @param $title Title object
 390          * @param $timestamp
 391          * @param $summary
 392          * @param $minorEdit
 393          * @param $oldid (default: false)
 394          */
 395         static function actuallyNotifyOnPageChange($editor, $title, $timestamp,
 396                         $summary, $minorEdit, $oldid=false) {
 397                 global $wgShowUpdatedMarker, $wgEnotifWatchlist;
 398
 399                 wfProfileIn( __METHOD__ );
 400
 401                 EmailNotification::notify($editor, $timestamp,
 402                         array('PageChangeNotification::usersList', array($editor, $title, $minorEdit)),
 403                         array('PageChangeNotification::message', array($oldid, $minorEdit, $summary, $title, $editor) ) );
 404
 405                 $latestTimestamp = Revision::getTimestampFromId( $title, $title->getLatestRevID() );
 406                 // Do not update watchlists if something else already did.
 407                 if ( $timestamp >= $latestTimestamp && ($wgShowUpdatedMarker || $wgEnotifWatchlist) ) {
 408                         # Mark the changed watch-listed page with a timestamp, so that the page is
 409                         # listed with an "updated since your last visit" icon in the watch list. Do
 410                         # not do this to users for their own edits.
 411                         $dbw = wfGetDB( DB_MASTER );
 412                         $dbw->update( 'watchlist',
 413                                 array( /* SET */
 414                                         'wl_notificationtimestamp' => $dbw->timestamp($timestamp)
 415                                 ), array( /* WHERE */
 416                                         'wl_title' => $title->getDBkey(),
 417                                         'wl_namespace' => $title->getNamespace(),
 418                                         'wl_notificationtimestamp IS NULL',
 419                                         'wl_user != ' . $editor->getID()
 420                                 ), __METHOD__
 421                         );
 422                 }
 423
 424                 wfProfileOut( __METHOD__ );
 425         }
 426
 427
 428         static function message( $stuff ) {
 429                 global $wgEnotifImpersonal;
 430
 431                 list($oldid, $medit, $summary, $title, $user) = $stuff;
 432                 $keys = array();
 433
 434                 # regarding the use of oldid as an indicator for the last visited version, see also
 435                 # http://bugzilla.wikipeda.org/show_bug.cgi?id=603 "Delete + undelete cycle doesn't preserve old_id"
 436                 # However, in the case of a new page which is already watched, we have no previous version to compare
 437                 if( $oldid ) {
 438                         $difflink = $title->getFullUrl( 'diff=0&oldid=' . $oldid );
 439                         $keys['$NEWPAGE'] = wfMsgForContent( 'enotif_lastvisited', $difflink );
 440                         $keys['$OLDID']   = $oldid;
 441                         $keys['$CHANGEDORCREATED'] = wfMsgForContent( 'changed' );
 442                 } else {
 443                         $keys['$NEWPAGE'] = wfMsgForContent( 'enotif_newpagetext' );
 444                         # clear $OLDID placeholder in the message template
 445                         $keys['$OLDID']   = '';
 446                         $keys['$CHANGEDORCREATED'] = wfMsgForContent( 'created' );
 447                 }
 448
 449                 if ($wgEnotifImpersonal && $oldid) {
 450                         # For impersonal mail, show a diff link to the last revision.
 451                         $keys['$NEWPAGE'] = wfMsgForContent('enotif_lastdiff',
 452                                         $title->getFullURL("oldid={$oldid}&diff=prev"));
 453                 }
 454
 455                 $keys['$PAGETITLE'] = $title->getPrefixedText();
 456                 $keys['$PAGETITLE_URL'] = $title->getFullUrl();
 457                 $keys['$PAGEMINOREDIT'] = $medit ? wfMsg( 'minoredit' ) : '';
 458                 $keys['$PAGESUMMARY'] = ($summary == '') ? ' - ' : $summary;
 459
 460                 return array($keys, 'enotif_body', 'enotif_subject');
 461         }
 462
 463         static function usersList($stuff) {
 464                 global $wgEnotifWatchlist, $wgEnotifMinorEdits, $wgUsersNotifiedOnAllChanges;
 465
 466                 list($editor, $title, $minorEdit) = $stuff;
 467                 $recipients = array();
 468
 469                 # User talk pages:
 470                 $userTalkId = false;
 471                 if( $title->getNamespace() == NS_USER_TALK && (!$minorEdit || $wgEnotifMinorEdits) ) {
 472                    $targetUser = User::newFromName($title->getText());
 473
 474                    if ( !$targetUser || $targetUser->isAnon() )
 475                       $msg = "user talk page edited, but user does not exist";
 476
 477                    else if ( $targetUser->getId() == $editor->getId() )
 478                       $msg = "user edited their own talk page, no notification sent";
 479
 480                    else if ( !$targetUser->getOption('enotifusertalkpages') )
 481                       $msg = "talk page owner doesn't want notifications";
 482
 483                    else if ( !$targetUser->isEmailConfirmed() )
 484                       $msg = "talk page owner doesn't have validated email";
 485
 486                    else {
 487                       $msg = "sending talk page update notification";
 488                       $recipients[] = $targetUser;
 489                       $userTalkId = $targetUser->getId(); # won't be included in watchlist, below.
 490                    }
 491                    wfDebug( __METHOD__ .": ". $msg . "\n" );
 492                 }
 493                 wfDebug("Did not send a user-talk notification.\n");
 494
 495                 if( $wgEnotifWatchlist && (!$minorEdit || $wgEnotifMinorEdits) ) {
 496                         // Send updates to watchers other than the current editor
 497                         $userCondition = 'wl_user != ' . $editor->getID();
 498
 499                         if ( $userTalkId !== false ) {
 500                                 // Already sent an email to this person
 501                                 $userCondition .= ' AND wl_user != ' . intval( $userTalkId );
 502                         }
 503                         $dbr = wfGetDB( DB_SLAVE );
 504
 505                         list( $user ) = $dbr->tableNamesN( 'user' );
 506
 507                         $res = $dbr->select( array( 'watchlist', 'user' ),
 508                                 array( "$user.*" ),
 509                                 array(
 510                                         'wl_user=user_id',
 511                                         'wl_title' => $title->getDBkey(),
 512                                         'wl_namespace' => $title->getNamespace(),
 513                                         $userCondition,
 514                                         'wl_notificationtimestamp IS NULL',
 515                                 ), __METHOD__ );
 516                         $userArray = UserArray::newFromResult( $res );
 517
 518                         foreach ( $userArray as $watchingUser ) {
 519                                 if ( $watchingUser->getOption( 'enotifwatchlistpages' ) &&
 520                                                 ( !$minorEdit || $watchingUser->getOption('enotifminoredits') ) &&
 521                                                 $watchingUser->isEmailConfirmed() ) {
 522                                         $recipients[] = $watchingUser;
 523                                 }
 524                         }
 525                 }
 526
 527                 foreach ( $wgUsersNotifiedOnAllChanges as $name ) {
 528                         $recipients[] = User::newFromName($name);
 529                 }
 530
 531                 return $recipients;
 532         }
 533 }
 534
 535 /**
 536  * Backwards compatibility functions
 537  */
 538 function wfRFC822Phrase( $s ) {
 539         return UserMailer::rfc822Phrase( $s );
 540 }
 541
 542 function userMailer( $to, $from, $subject, $body, $replyto=null ) {
 543         return UserMailer::send( $to, $from, $subject, $body, $replyto );
 544 }