1 <?php
2 
3 namespace dokuwiki\Subscriptions;
4 
5 use Diff;
6 use InlineDiffFormatter;
7 use UnifiedDiffFormatter;
8 
9 class PageSubscriptionSender extends SubscriptionSender
10 {
11     /**
12      * Send the diff for some page change
13      *
14      * @param string   $subscriber_mail The target mail address
15      * @param string   $template        Mail template ('subscr_digest', 'subscr_single', 'mailtext', ...)
16      * @param string   $id              Page for which the notification is
17      * @param int|null $rev             Old revision if any
18      * @param string   $summary         Change summary if any
19      * @param int|null $current_rev     New revision if any
20      *
21      * @return bool                     true if successfully sent
22      */
23     public function sendPageDiff($subscriber_mail, $template, $id, $rev = null, $summary = '', $current_rev = null)
24     {
25         global $DIFF_INLINESTYLES;
26 
27         // prepare replacements (keys not set in hrep will be taken from trep)
28         $trep = [
29             'PAGE' => $id,
30             'NEWPAGE' => wl($id, $current_rev ? ('rev=' . $current_rev) : '', true, '&'),
31             'SUMMARY' => $summary,
32             'SUBSCRIBE' => wl($id, ['do' => 'subscribe'], true, '&'),
33         ];
34         $hrep = [];
35 
36         if ($rev) {
37             $subject = 'changed';
38             $trep['OLDPAGE'] = wl($id, "rev=$rev", true, '&');
39 
40             $old_content = rawWiki($id, $rev);
41             $new_content = rawWiki($id);
42 
43             $df = new Diff(
44                 explode("\n", $old_content),
45                 explode("\n", $new_content)
46             );
47             $dformat = new UnifiedDiffFormatter();
48             $tdiff = $dformat->format($df);
49 
50             $DIFF_INLINESTYLES = true;
51             $df = new Diff(
52                 explode("\n", $old_content),
53                 explode("\n", $new_content)
54             );
55             $dformat = new InlineDiffFormatter();
56             $hdiff = $dformat->format($df);
57             $hdiff = '<table>' . $hdiff . '</table>';
58             $DIFF_INLINESTYLES = false;
59         } else {
60             $subject = 'newpage';
61             $trep['OLDPAGE'] = '---';
62             $tdiff = rawWiki($id);
63             $hdiff = nl2br(hsc($tdiff));
64         }
65 
66         $trep['DIFF'] = $tdiff;
67         $hrep['DIFF'] = $hdiff;
68 
69         $headers = ['Message-Id' => $this->getMessageID($id)];
70         if ($rev) {
71             $headers['In-Reply-To'] = $this->getMessageID($id, $rev);
72         }
73 
74         return $this->send(
75             $subscriber_mail,
76             $subject,
77             $id,
78             $template,
79             $trep,
80             $hrep,
81             $headers
82         );
83     }
84 }
85