+/**
+ * This 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
+ *
+ *
+ */
+class EmailNotification {
+ /**@{{
+ * @private
+ */
+ var $to, $subject, $body, $replyto, $from;
+ var $user, $title, $timestamp, $summary, $minorEdit, $oldid, $composed_common, $editor;
+ var $mailTargets = array();
+
+ /**@}}*/
+
+ /**
+ * Send emails corresponding to the user $editor editing the page $title.
+ * Also updates wl_notificationtimestamp.
+ *
+ * May be deferred via the job queue.
+ *
+ * @param $editor User object
+ * @param $title Title object
+ * @param $timestamp
+ * @param $summary
+ * @param $minorEdit
+ * @param $oldid (default: false)
+ */
+ function notifyOnPageChange($editor, $title, $timestamp, $summary, $minorEdit, $oldid = false) {
+ global $wgEnotifUseJobQ;
+
+ if( $title->getNamespace() < 0 )
+ return;
+
+ if ($wgEnotifUseJobQ) {
+ $params = array(
+ "editor" => $editor->getName(),
+ "editorID" => $editor->getID(),
+ "timestamp" => $timestamp,
+ "summary" => $summary,
+ "minorEdit" => $minorEdit,
+ "oldid" => $oldid);
+ $job = new EnotifNotifyJob( $title, $params );
+ $job->insert();
+ } else {
+ $this->actuallyNotifyOnPageChange($editor, $title, $timestamp, $summary, $minorEdit, $oldid);
+ }
+
+ }
+
+ /*
+ * Immediate version of notifyOnPageChange().
+ *
+ * Send emails corresponding to the user $editor editing the page $title.
+ * Also updates wl_notificationtimestamp.
+ *
+ * @param $editor User object
+ * @param $title Title object
+ * @param $timestamp
+ * @param $summary
+ * @param $minorEdit
+ * @param $oldid (default: false)
+ */
+ function actuallyNotifyOnPageChange($editor, $title, $timestamp, $summary, $minorEdit, $oldid=false) {
+
+ # we use $wgPasswordSender as sender's address
+ global $wgEnotifWatchlist;
+ global $wgEnotifMinorEdits, $wgEnotifUserTalk, $wgShowUpdatedMarker;
+ global $wgEnotifImpersonal;
+
+ wfProfileIn( __METHOD__ );
+
+ # 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
+
+ $isUserTalkPage = ($title->getNamespace() == NS_USER_TALK);
+ $enotifusertalkpage = ($isUserTalkPage && $wgEnotifUserTalk);
+ $enotifwatchlistpage = $wgEnotifWatchlist;
+
+ $this->title = $title;
+ $this->timestamp = $timestamp;
+ $this->summary = $summary;
+ $this->minorEdit = $minorEdit;
+ $this->oldid = $oldid;
+ $this->editor = $editor;
+ $this->composed_common = false;
+
+ $userTalkId = false;
+
+ if ( (!$minorEdit || $wgEnotifMinorEdits) ) {
+ if ( $wgEnotifUserTalk && $isUserTalkPage ) {
+ $targetUser = User::newFromName( $title->getText() );
+ if ( !$targetUser || $targetUser->isAnon() ) {
+ wfDebug( __METHOD__.": user talk page edited, but user does not exist\n" );
+ } elseif ( $targetUser->getId() == $editor->getId() ) {
+ wfDebug( __METHOD__.": user edited their own talk page, no notification sent\n" );
+ } elseif( $targetUser->getOption( 'enotifusertalkpages' ) ) {
+ if( $targetUser->isEmailConfirmed() ) {
+ wfDebug( __METHOD__.": sending talk page update notification\n" );
+ $this->compose( $targetUser );
+ $userTalkId = $targetUser->getId();
+ } else {
+ wfDebug( __METHOD__.": talk page owner doesn't have validated email\n" );
+ }
+ } else {
+ wfDebug( __METHOD__.": talk page owner doesn't want notifications\n" );
+ }
+ }
+
+ if ( $wgEnotifWatchlist ) {
+ // Send updates to watchers other than the current editor
+ $userCondition = 'wl_user != ' . $editor->getID();
+ if ( $userTalkId !== false ) {
+ // Already sent an email to this person
+ $userCondition .= ' AND wl_user != ' . intval( $userTalkId );
+ }
+ $dbr = wfGetDB( DB_SLAVE );
+
+ list( $user ) = $dbr->tableNamesN( 'user' );
+
+ $res = $dbr->select( array( 'watchlist', 'user' ),
+ array( "$user.*" ),
+ array(
+ 'wl_user=user_id',
+ 'wl_title' => $title->getDBkey(),
+ 'wl_namespace' => $title->getNamespace(),
+ $userCondition,
+ 'wl_notificationtimestamp IS NULL',
+ ), __METHOD__ );
+ $userArray = UserArray::newFromResult( $res );
+
+ foreach ( $userArray as $watchingUser ) {
+ if ( $watchingUser->getOption( 'enotifwatchlistpages' ) &&
+ ( !$minorEdit || $watchingUser->getOption('enotifminoredits') ) &&
+ $watchingUser->isEmailConfirmed() )
+ {
+ $this->compose( $watchingUser );
+ }
+ }
+ }
+ }
+
+ global $wgUsersNotifiedOnAllChanges;
+ foreach ( $wgUsersNotifiedOnAllChanges as $name ) {
+ $user = User::newFromName( $name );
+ $this->compose( $user );
+ }
+
+ $this->sendMails();
+
+ if ( $wgShowUpdatedMarker || $wgEnotifWatchlist ) {
+ # 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. Do
+ # not do this to users for their own edits.
+ $dbw = wfGetDB( DB_MASTER );
+ $dbw->update( 'watchlist',
+ array( /* SET */
+ 'wl_notificationtimestamp' => $dbw->timestamp($timestamp)
+ ), array( /* WHERE */
+ 'wl_title' => $title->getDBkey(),
+ 'wl_namespace' => $title->getNamespace(),
+ 'wl_notificationtimestamp IS NULL',
+ 'wl_user != ' . $editor->getID()
+ ), __METHOD__
+ );
+ }
+
+ wfProfileOut( __METHOD__ );
+ } # function NotifyOnChange
+
+ /**
+ * @private
+ */
+ function composeCommonMailtext() {
+ global $wgPasswordSender, $wgNoReplyAddress;
+ global $wgEnotifFromEditor, $wgEnotifRevealEditorAddress;
+ global $wgEnotifImpersonal;
+
+ $this->composed_common = true;
+
+ $summary = ($this->summary == '') ? ' - ' : $this->summary;
+ $medit = ($this->minorEdit) ? 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
+
+ $subject = wfMsgForContent( 'enotif_subject' );
+ $body = wfMsgForContent( 'enotif_body' );
+ $from = ''; /* fail safe */
+ $replyto = ''; /* fail safe */
+ $keys = array();
+
+ # 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( $this->oldid ) {
+ $difflink = $this->title->getFullUrl( 'diff=0&oldid=' . $this->oldid );
+ $keys['$NEWPAGE'] = wfMsgForContent( 'enotif_lastvisited', $difflink );
+ $keys['$OLDID'] = $this->oldid;
+ $keys['$CHANGEDORCREATED'] = wfMsgForContent( 'changed' );
+ } else {
+ $keys['$NEWPAGE'] = wfMsgForContent( 'enotif_newpagetext' );
+ # clear $OLDID placeholder in the message template
+ $keys['$OLDID'] = '';
+ $keys['$CHANGEDORCREATED'] = wfMsgForContent( 'created' );
+ }
+
+ if ($wgEnotifImpersonal && $this->oldid)
+ /*
+ * For impersonal mail, show a diff link to the last
+ * revision.
+ */
+ $keys['$NEWPAGE'] = wfMsgForContent('enotif_lastdiff',
+ $this->title->getFullURL("oldid={$this->oldid}&diff=prev"));
+
+ $body = strtr( $body, $keys );
+ $pagetitle = $this->title->getPrefixedText();
+ $keys['$PAGETITLE'] = $pagetitle;
+ $keys['$PAGETITLE_URL'] = $this->title->getFullUrl();
+
+ $keys['$PAGEMINOREDIT'] = $medit;
+ $keys['$PAGESUMMARY'] = $summary;
+
+ $subject = strtr( $subject, $keys );
+
+ # Reveal the page editor's address as REPLY-TO address only if
+ # the user has not opted-out and the option is enabled at the
+ # global configuration level.
+ $editor = $this->editor;
+ $name = $editor->getName();
+ $adminAddress = new MailAddress( $wgPasswordSender, 'WikiAdmin' );
+ $editorAddress = new MailAddress( $editor );
+ if( $wgEnotifRevealEditorAddress
+ && ( $editor->getEmail() != '' )
+ && $editor->getOption( 'enotifrevealaddr' ) ) {
+ if( $wgEnotifFromEditor ) {
+ $from = $editorAddress;
+ } else {
+ $from = $adminAddress;
+ $replyto = $editorAddress;
+ }
+ } else {
+ $from = $adminAddress;
+ $replyto = new MailAddress( $wgNoReplyAddress );
+ }
+
+ if( $editor->isIP( $name ) ) {
+ #real anon (user:xxx.xxx.xxx.xxx)
+ $utext = wfMsgForContent('enotif_anon_editor', $name);
+ $subject = str_replace('$PAGEEDITOR', $utext, $subject);
+ $keys['$PAGEEDITOR'] = $utext;
+ $keys['$PAGEEDITOR_EMAIL'] = wfMsgForContent( 'noemailtitle' );
+ } else {
+ $subject = str_replace('$PAGEEDITOR', $name, $subject);
+ $keys['$PAGEEDITOR'] = $name;
+ $emailPage = SpecialPage::getSafeTitleFor( 'Emailuser', $name );
+ $keys['$PAGEEDITOR_EMAIL'] = $emailPage->getFullUrl();
+ }
+ $userPage = $editor->getUserPage();
+ $keys['$PAGEEDITOR_WIKI'] = $userPage->getFullUrl();
+ $body = strtr( $body, $keys );
+ $body = wordwrap( $body, 72 );
+
+ # now save this as the constant user-independent part of the message
+ $this->from = $from;
+ $this->replyto = $replyto;
+ $this->subject = $subject;
+ $this->body = $body;
+ }
+
+ /**
+ * Compose a mail to a given user and either queue it for sending, or send it now,
+ * depending on settings.
+ *
+ * Call sendMails() to send any mails that were queued.
+ */
+ function compose( $user ) {
+ global $wgEnotifImpersonal;
+
+ if ( !$this->composed_common )
+ $this->composeCommonMailtext();
+
+ if ( $wgEnotifImpersonal ) {
+ $this->mailTargets[] = new MailAddress( $user );
+ } else {
+ $this->sendPersonalised( $user );
+ }
+ }
+
+ /**
+ * Send any queued mails
+ */
+ function sendMails() {
+ global $wgEnotifImpersonal;
+ if ( $wgEnotifImpersonal ) {
+ $this->sendImpersonal( $this->mailTargets );
+ }
+ }
+
+ /**
+ * Does the per-user customizations to a notification e-mail (name,
+ * timestamp in proper timezone, etc) and sends it out.
+ * Returns true if the mail was sent successfully.
+ *
+ * @param User $watchingUser
+ * @param object $mail
+ * @return bool
+ * @private
+ */
+ function sendPersonalised( $watchingUser ) {
+ global $wgLang;
+ // From the PHP manual:
+ // Note: The to parameter cannot be an address in the form of "Something <someone@example.com>".
+ // The mail command will not parse this properly while talking with the MTA.
+ $to = new MailAddress( $watchingUser );
+ $body = str_replace( '$WATCHINGUSERNAME', $watchingUser->getName() , $this->body );
+
+ $timecorrection = $watchingUser->getOption( 'timecorrection' );
+
+ # $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( $this->timestamp, true, false, $timecorrection ),
+ $body);
+
+ return UserMailer::send($to, $this->from, $this->subject, $body, $this->replyto);
+ }
+
+ /**
+ * Same as sendPersonalised but does impersonal mail suitable for bulk
+ * mailing. Takes an array of MailAddress objects.
+ */
+ function sendImpersonal( $addresses ) {
+ global $wgLang;
+
+ if (empty($addresses))
+ return;
+
+ $body = str_replace(
+ array( '$WATCHINGUSERNAME',
+ '$PAGEEDITDATE'),
+ array( wfMsgForContent('enotif_impersonal_salutation'),
+ $wgLang->timeanddate($this->timestamp, true, false, false)),
+ $this->body);
+
+ return UserMailer::send($addresses, $this->from, $this->subject, $body, $this->replyto);
+ }
+
+} # end of class EmailNotification
+
+/**
+ * Backwards compatibility functions
+ */
+function wfRFC822Phrase( $s ) {
+ return UserMailer::rfc822Phrase( $s );