(bug 454) Merge e-notif 2.00
[lhc/web/wiklou.git] / includes / UserMailer.php
index 92b379d..422f1a8 100644 (file)
@@ -1,10 +1,59 @@
 <?php
+/** Copyright (C) 2004 Thomas Gries <mail@tgries.de>
+# http://www.mediawiki.org/
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# http://www.gnu.org/copyleft/gpl.html
+**/
+
 /**
  * Provide mail capabilities
  *
  * @package MediaWiki
  */
 
+function wfQuotedPrintable_name_and_emailaddr( $string ) {
+       /*      it takes formats like "name <emailaddr>" into account,
+               for which the partial string "name" will be quoted-printable converted
+               but not "<emailaddr>".
+
+               The php mail() function does not accept the email address partial string
+               to be quotedprintable, it does not accept inputs as quotedprintable("name <emailaddr>") .
+
+               case 1:
+               input:  "name <emailaddr> rest"
+               output: "quoted-printable(name) <emailaddr>"
+
+               case 2: (should not happen)
+               input:  "<emailaddr> rest"
+               output: "<emailaddr>"
+
+               case 3: (should not happen)
+               input:  "name"
+               output: "quoted-printable(name)"
+
+               T. Gries 18.11.2004
+       */
+
+       /* do not quote printable for email address string <emailaddr>, but only for the (leading) string, usually the name */
+       preg_match( '/^([^<]*)?(<([A-z0-9_.-]+([A-z0-9_.-]+)*\@[A-z0-9_-]+([A-z0-9_.-]+)*([A-z.]{2,})+)>)?$/', $string, $part );
+       if ( !isset($part[1]) ) return $part[2];
+       if ( !isset($part[2]) ) return wfQuotedprintable($part[1]);
+       return wfQuotedprintable($part[1]) . $part[2] ;
+}
+
 /**
  * This function will perform a direct (authenticated) login to
  * a SMTP Server to use for mail relaying if 'wgSMTP' specifies an
  * @param string $subject email's subject
  * @param string $body email's text
  */
-function userMailer( $to, $from, $subject, $body ) {
-       global $wgUser, $wgSMTP, $wgOutputEncoding, $wgErrorString;
+function userMailer( $to, $from, $subject, $body, $replyto=false ) {
+       global $wgUser, $wgSMTP, $wgOutputEncoding, $wgErrorString, $wgEmergencyContact;
        
-       $qto = wfQuotedPrintable( $to );
+       $qto = wfQuotedPrintable_name_and_emailaddr( $to );
        
-       if (is_array( $wgSMTP ))
-       {
+       if (is_array( $wgSMTP )) {
                require_once( 'Mail.php' );
                
                $timestamp = time();
@@ -30,13 +78,16 @@ function userMailer( $to, $from, $subject, $body ) {
                $headers['From'] = $from;
 /* removing to: field as it should be set by the send() function below
    UNTESTED - Hashar */
-//             $headers["To"] = $qto;
+//             $headers['To'] = $qto;
+/* Reply-To:
+   UNTESTED - Tom Gries */
+               $headers['Reply-To'] = $replyto;
                $headers['Subject'] = $subject;
                $headers['MIME-Version'] = '1.0';
                $headers['Content-type'] = 'text/plain; charset='.$wgOutputEncoding;
                $headers['Content-transfer-encoding'] = '8bit';
                $headers['Message-ID'] = "<{$timestamp}" . $wgUser->getName() . '@' . $wgSMTP['IDHost'] . '>';
-               $headers['X-Mailer'] = 'MediaWiki interuser e-mailer';
+               $headers['X-Mailer'] = 'MediaWiki mailer';
        
                // Create the mail object using the Mail::factory method
                $mail_object =& Mail::factory('smtp', $wgSMTP);
@@ -50,20 +101,23 @@ function userMailer( $to, $from, $subject, $body ) {
                        return $mailResult->getMessage();
                else
                        return 'Mail object return unknown error.';
-       }
-       
-       else
-       {
+       } else  {
+               # In the following $headers = expression we removed "Reply-To: {$from}\r\n" , because it is treated differently
+               # (fifth parameter of the PHP mail function, see some lines below)
                $headers =
                        "MIME-Version: 1.0\n" .
                        "Content-type: text/plain; charset={$wgOutputEncoding}\n" .
-                       "Content-transfer-encoding: 8bit\n" .
-                       "From: {$from}\n" .
-                       "X-Mailer: MediaWiki interuser e-mailer";
+                       "Content-Transfer-Encoding: 8bit\n" .
+                       "X-Mailer: MediaWiki mailer\n".
+                       'From:' . wfQuotedPrintable_name_and_emailaddr($from) . "\n";
+               if ($replyto) {
+                       $headers .= 'Reply-To: '.wfQuotedPrintable_name_and_emailaddr($replyto)."\n";
+               }
 
                $wgErrorString = '';
                set_error_handler( 'mailErrorHandler' );
-               mail( $to, $subject, $body, $headers );
+               # added -f parameter, see PHP manual for the fifth parameter when using the mail function
+               mail( wfQuotedPrintable_name_and_emailaddr($to), $subject, $body, $headers, "-f{$wgEmergencyContact}\n");
                restore_error_handler();
 
                return $wgErrorString;
@@ -77,4 +131,244 @@ function mailErrorHandler( $code, $string ) {
        global $wgErrorString;
        $wgErrorString = preg_replace( "/^mail\(\): /", "", $string );
 }
+
+class EmailNotification {
+
+var $to, $subject, $body, $replyto, $from;
+
+# Patch for email notification on page changes T.Gries/M.Arndt 11.09.2004
+#
+#      This new module processes the email notifications when the current page is changed.
+#      It looks up the table watchlist to find out which users are watching that page.
+#
+#      The current implementation sends independent emails to each watching user for the following reason:
+#
+#      -       Each watching user will be notified about the page edit time expressed in his/her local time (UTC is shown additionally).
+#              To achieve this, we need to find the individual timeoffset of each watching user from the preferences..
+#
+#              Suggested improvement to slack down the number of sent emails:
+#              We could think of sending out bulk mails (bcc:user1,user2...) for all these users having the same timeoffset in their preferences.
+#
+#      -       Visit the documentation pages under http://meta.wikipedia.com/Enotif
+
+function NotifyOnPageChange($currentUser, $currentPage, $currentNs, $timestamp, $currentSummary, $currentMinorEdit, $oldid=false) {
+
+       # we use $wgEmergencyContact as sender's address
+       global $wgUser, $wgLang, $wgEmergencyContact;
+       global $wgEmailNotificationForWatchlistPages, $wgEmailNotificationForMinorEdits;
+       global $wgEmailNotificationSystembeep, $wgEmailNotificationForUserTalkPages;
+       global $wgEmailNotificationRevealPageEditorAddress;
+       global $wgEmailNotificationMailsSentFromPageEditor;
+       global $wgEmailAuthentication;
+       global $beeped;
+
+       # The following code is only run, if several conditions are met:
+       # 1. EmailNotification for pages (other than user_talk pages) must be enabled
+       # 2. minor edits (changes) are only regarded if the global flag indicates so
+
+       $isUserTalkPage = ($currentNs == NS_USER_TALK);
+       $enotifusertalkpage = ($isUserTalkPage && $wgEmailNotificationForUserTalkPages);
+       $enotifwatchlistpage = (!$isUserTalkPage && $wgEmailNotificationForWatchlistPages);
+
+       if ( ($enotifusertalkpage || $enotifwatchlistpage)
+               && (!$currentMinorEdit || $wgEmailNotificationForMinorEdits) ) {
+
+               $dbr =& wfGetDB( DB_MASTER );
+               extract( $dbr->tableNames( 'watchlist' ) );
+               $sql = "SELECT wl_user FROM $watchlist
+                       WHERE wl_title='" . $dbr->strencode($currentPage)."'  AND wl_namespace = " . $currentNs .
+                       " AND wl_user <>" . $currentUser . " AND wl_notificationtimestamp <= 1";
+               $res = $dbr->query( $sql,'UserMailer::NotifyOnChange');
+
+               if ( $dbr->numRows( $res ) > 0 ) { # if anyone is watching ... set up the email message text which is common for all receipients ...
+
+                       # This is a switch for one beep on the server when sending notification mails
+                       $beeped = false;
+
+                       $article->mTimestamp = $timestamp;
+                       $article->mSummary = $currentSummary;
+                       $article->mMinorEdit = $currentMinorEdit;
+                       $article->mNamespace = $currentNs;
+                       $article->mTitle = $currentPage;
+                       $article->mOldid = $oldid;
+
+                       $mail = $this->ComposeCommonMailtext( $wgUser, $article );
+                       $watchingUser = new User();
+
+                       for ($i = 1; $i <= $dbr->numRows( $res ); $i++) { # ... now do for all watching users ... if the options fit
+
+                               $wuser = $dbr->fetchObject( $res );
+                               $watchingUser->setID($wuser->wl_user);
+                               if ( ( $enotifwatchlistpage && $watchingUser->getOption('enotifwatchlistpages') ) ||
+                                       ( $enotifusertalkpage && $watchingUser->getOption('enotifusertalkpages') )
+                               && (!$currentMinorEdit || ($wgEmailNotificationForMinorEdits && $watchingUser->getOption('enotifminoredits') ) )
+                               && ($watchingUser->getEmail() != '')
+                               && (!$wgEmailAuthentication || ($watchingUser->getEmailAuthenticationtimestamp() != 0 ) ) ) {
+                                       # ... adjust remaining text and page edit time placeholders
+                                       # which needs to be personalized for each user
+                                       $sent = $this->ComposeAndSendPersonalisedMail( $watchingUser, $mail, $article );
+                                       /* the beep here beeps once when a watched-listed page is changed */
+                                       if ($sent && !$beeped && ($wgEmailNotificationSystembeep != '') ) {
+                                               $last_line = system($wgEmailNotificationSystembeep);
+                                               $beeped=true;
+                                       }
+                               } # if the watching user has an email address in the preferences
+                               # mark the changed watch-listed page with a timestamp, so that the page is listed with an "updated since your last visit" icon in the watch list, ...
+                               # ... no matter, if the watching user has or has not indicated an email address in his/her preferences.
+                               # We memorise the event of sending out a notification and use this as a flag to suppress further mails for changes on the same page for that watching user
+                               $dbw =& wfGetDB( DB_MASTER );
+                               $succes = $dbw->update( 'watchlist',
+                                       array( /* SET */
+                                               'wl_notificationtimestamp' => $article->mTimestamp
+                                       ), array( /* WHERE */
+                                               'wl_title' => $currentPage,
+                                               'wl_namespace' => $currentNs,
+                                               'wl_user' => $wuser->wl_user
+                                       ), 'UserMailer::NotifyOnChange'
+                               );
+                       } # for every watching user
+               } # if anyone is watching
+       } # if $wgEmailNotificationForWatchlistPages = true
+} # function NotifyOnChange
+
+function ComposeCommonMailtext ( $pageeditorUser, $article ) {
+
+       global $wgLang, $wgEmergencyContact;
+       global $wgEmailNotificationRevealPageEditorAddress, $wgEmailNotificationMailsSentFromPageEditor;
+       global $wgNoReplyAddress;
+
+       $summary = ($article->mSummary == '') ? ' - ' : $article->mSummary;
+       $medit = ($article->mMinorEdit) ? wfMsg( 'minoredit' ) : '';
+
+       # You as the WikiAdmin and Sysops can make use of plenty of named variables when composing
+       # your notification emails while simply editing the Meta pages
+
+       $to             = wfMsg( 'email_notification_to' );
+       $subject        = wfMsg( 'email_notification_subject' );
+       $body           = wfMsg( 'email_notification_body' );
+       $from           = ''; /* fail safe */
+       $replyto        = ''; /* fail safe */
+
+       # regarding the use of oldid as an indicator for the last visited version, see also
+       # http://bugzilla.wikipeda.org/show_bug.cgi?id=603 "Delete + undelete cycle doesn't preserve old_id"
+       # However, in the case of a new page which is already watched, we have no previous version to compare
+       if ($article->mOldid) {
+               $body = str_replace('$NEWPAGE', wfMsg( 'email_notification_lastvisitedrevisiontext' ), $body);
+               $body = str_replace('$OLDID', $article->mOldid , $body);
+       } else {
+               $body = str_replace('$NEWPAGE', wfMsg( 'email_notification_newpagetext' ), $body );
+               $body = str_replace('$OLDID', '', $body); # clear $OLDID placeholder in the message template
+       }
+
+       $pagetitle = $article->mTitle;
+       if ($article->mNamespace != 0) { $pagetitle = $wgLang->getNsText($article->mNamespace).':'.$pagetitle; };
+       $subject = str_replace('$PAGETITLE_QP', wfQuotedPrintable(str_replace( '_', ' ', $pagetitle)), $subject);
+       $body = str_replace('%24PAGETITLE_RAWURL', wfUrlencode($pagetitle), $body);
+       $body = str_replace('$PAGETITLE_RAWURL', wfUrlencode($pagetitle), $body);
+       $body = str_replace('%24PAGETITLE', $pagetitle, $body); # needed for the {{localurl:$PAGETITLE}} in the messagetext, "$" appears here as "%24"
+       $body = str_replace('$PAGETITLE', $pagetitle, $body);
+       $body = str_replace('$PAGETIMESTAMP', $article->mTimestamp, $body);     # this is the raw internal timestamp - can be useful, too
+       $body = str_replace('$PAGEEDITDATEUTC', $wgLang->timeanddate( $article->mTimestamp, false, false, false, true ), $body);
+       $body = str_replace('$PAGEMINOREDIT', $medit,$body);
+       $body = str_replace('$PAGESUMMARY', $summary, $body);
+
+       $pageeditor_qp = wfQuotedPrintable($pageeditorUser->getName());
+       # the user who edited is $pageeditorUser->getName():
+       # reveal the page editor's address as REPLY-TO address only if the user has not opted-out
+       if (($pageeditorUser->getEmail() != '')
+       && $pageeditorUser->getOption('enotifrevealaddr')
+       && $wgEmailNotificationRevealPageEditorAddress ) {
+               if ($wgEmailNotificationMailsSentFromPageEditor) {
+                       $from = $pageeditorUser->getName().' <'.$pageeditorUser->getEmail().'>';
+               } else {
+                       $from = 'WikiAdmin <'.$wgEmergencyContact.'>';
+                       if ($wgEmailNotificationRevealPageEditorAddress) {
+                               $replyto = $pageeditorUser->getName().' <'.$pageeditorUser->getEmail().'>';
+                       }
+               }
+               $body = str_replace('$PAGEEDITORNAMEANDEMAILADDR', $pageeditorUser->getName().' <'.$pageeditorUser->getEmail().'>', $body);
+       } else {
+               $from = 'WikiAdmin <'.$wgEmergencyContact.'>';
+               $replyto = $wgNoReplyAddress;
+               $body = str_replace('$PAGEEDITORNAMEANDEMAILADDR', $replyto, $body);
+       }
+
+       if ($pageeditorUser->isIP($pageeditorUser->getName())) { #real anon (user:xxx.xxx.xxx.xxx)
+               $subject = str_replace('$PAGEEDITOR_QP', 'anonymous user ' . $pageeditorUser->getName(), $subject);
+               $body = str_replace('$PAGEEDITOR_RAWURL', wfUrlencode($pageeditorUser->getName()) . ' (anonymous user)' , $body);
+               $body = str_replace('%24PAGEEDITOR_RAWURL', wfUrlencode($pageeditorUser->getName()) . ' (anonymous user)' , $body);
+               $body = str_replace('%24PAGEEDITORE', $pageeditorUser->getName() . ' (anonymous user)' , $body);
+               $body = str_replace('$PAGEEDITORE', $pageeditorUser->getName() . ' (anonymous user)' , $body);
+               $body = str_replace('$PAGEEDITOR', 'anonymous user ' . $pageeditorUser->getName(), $body);
+       } else {
+               $subject = str_replace('$PAGEEDITOR_QP', $pageeditor_qp, $subject);
+               $body = str_replace('$PAGEEDITOR_RAWURL', wfUrlencode($pageeditorUser->getName()), $body);
+               $body = str_replace('%24PAGEEDITOR_RAWURL', wfUrlencode($pageeditorUser->getName()), $body);
+               $body = str_replace('%24PAGEEDITORE', str_replace( ' ', '_', $pageeditorUser->getName()), $body);
+               $body = str_replace('$PAGEEDITORE', str_replace( ' ', '_', $pageeditorUser->getName()), $body);
+               $body = str_replace('$PAGEEDITOR',$pageeditorUser->getName(), $body);
+       }
+
+       # now save this as the constant user-independent part of the message
+       $this->to       = $to;
+       $this->from     = $from;
+       $this->replyto  = $replyto;
+       $this->subject  = $subject;
+       $this->body     = $body;
+       return $this;
+}
+
+
+function ComposeAndSendPersonalisedMail( $watchingUser, $mail, $article) {
+
+       /* returns true if the mail was sent successfully */
+       global $wgLang;
+
+       $to = $watchingUser->getName().' <'.$watchingUser->getEmail().'>';
+       $body = str_replace('$WATCHINGUSERNAME', $watchingUser->getName() , $mail->body);
+       $body = str_replace('$WATCHINGUSEREMAILADDR', $watchingUser->getEmail(), $body);
+
+       $timecorrection = $watchingUser->getOption('timecorrection');
+       if (!$timecorrection) { $timecorrection = '00:00'; }    # fail safe - I prefer it. TomGries
+       #  $PAGEEDITDATE is the time and date of the page change expressed in terms of individual local time of the notification recipient, i.e. watching user
+       $body = str_replace('$PAGEEDITDATE', $wgLang->timeanddate($article->mTimestamp, true, false, $timecorrection, true), $body);
+       return (userMailer($to, $mail->from, $mail->subject, $body, $mail->replyto) == '');
+}
+
+function Clear($currentUser, $currentPage, $currentNs) {
+       $dbw =& wfGetDB( DB_MASTER );
+       $success = $dbw->update( 'watchlist',
+                       array( /* SET */
+                               'wl_notificationtimestamp' => 0
+                       ), array( /* WHERE */
+                               'wl_title' => $currentPage,
+                               'wl_namespace' => $currentNs,
+                               'wl_user' => $currentUser
+                       ), 'UserMailer::Clear'
+       );
+}
+
+function ClearAll($currentUser) {
+       global $_REQUEST;
+
+       if ($currentUser != 0)  {
+
+               if( $_REQUEST['reset'] == 'all') {
+
+                       $dbw =& wfGetDB( DB_MASTER );
+                       $success = $dbw->update( 'watchlist',
+                               array( /* SET */
+                                       'wl_notificationtimestamp' => 0
+                               ), array( /* WHERE */
+                                       'wl_user' => $currentUser
+                               ), 'UserMailer::ClearAll'
+                       );
+
+               #       we also need to clear here the "you have new message" notification for the own user_talk page
+               #       This is cleared one page view later in Article::viewUpdates();
+               }
+       }
+}
+
+} # end of class EmailNotification
 ?>