1 files changed, 88 insertions, 0 deletions
diff --git a/platform/www/inc/Subscriptions/PageSubscriptionSender.php b/platform/www/inc/Subscriptions/PageSubscriptionSender.php
new file mode 100644
index 0000000..e5577c1
--- /dev/null
+++ b/platform/www/inc/Subscriptions/PageSubscriptionSender.php
@@ -0,0 +1,88 @@
+<?php
+
+
+namespace dokuwiki\Subscriptions;
+
+
+use Diff;
+use InlineDiffFormatter;
+use UnifiedDiffFormatter;
+
+class PageSubscriptionSender extends SubscriptionSender
+{
+
+    /**
+     * Send the diff for some page change
+     *
+     * @param string   $subscriber_mail The target mail address
+     * @param string   $template        Mail template ('subscr_digest', 'subscr_single', 'mailtext', ...)
+     * @param string   $id              Page for which the notification is
+     * @param int|null $rev             Old revision if any
+     * @param string   $summary         Change summary if any
+     * @param int|null $current_rev     New revision if any
+     *
+     * @return bool                     true if successfully sent
+     */
+    public function sendPageDiff($subscriber_mail, $template, $id, $rev = null, $summary = '', $current_rev = null)
+    {
+        global $DIFF_INLINESTYLES;
+
+        // prepare replacements (keys not set in hrep will be taken from trep)
+        $trep = [
+            'PAGE' => $id,
+            'NEWPAGE' => wl($id, $current_rev?('rev='.$current_rev):'', true, '&'),
+            'SUMMARY' => $summary,
+            'SUBSCRIBE' => wl($id, ['do' => 'subscribe'], true, '&'),
+        ];
+        $hrep = [];
+
+        if ($rev) {
+            $subject = 'changed';
+            $trep['OLDPAGE'] = wl($id, "rev=$rev", true, '&');
+
+            $old_content = rawWiki($id, $rev);
+            $new_content = rawWiki($id);
+
+            $df = new Diff(
+                explode("\n", $old_content),
+                explode("\n", $new_content)
+            );
+            $dformat = new UnifiedDiffFormatter();
+            $tdiff = $dformat->format($df);
+
+            $DIFF_INLINESTYLES = true;
+            $df = new Diff(
+                explode("\n", $old_content),
+                explode("\n", $new_content)
+            );
+            $dformat = new InlineDiffFormatter();
+            $hdiff = $dformat->format($df);
+            $hdiff = '<table>' . $hdiff . '</table>';
+            $DIFF_INLINESTYLES = false;
+        } else {
+            $subject = 'newpage';
+            $trep['OLDPAGE'] = '---';
+            $tdiff = rawWiki($id);
+            $hdiff = nl2br(hsc($tdiff));
+        }
+
+        $trep['DIFF'] = $tdiff;
+        $hrep['DIFF'] = $hdiff;
+
+        $headers = ['Message-Id' => $this->getMessageID($id)];
+        if ($rev) {
+            $headers['In-Reply-To'] = $this->getMessageID($id, $rev);
+        }
+
+        return $this->send(
+            $subscriber_mail,
+            $subject,
+            $id,
+            $template,
+            $trep,
+            $hrep,
+            $headers
+        );
+    }
+
+}