From 21b398252aaf28d9ff8045fbe3e9fcb162a6f447 Mon Sep 17 00:00:00 2001
From: Max Kostikov <max@kostikov.co>
Date: Wed, 4 Dec 2019 03:44:24 +0100
Subject: Add content pinning support

---
 Zotlabs/Module/Pin.php | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 Zotlabs/Module/Pin.php

(limited to 'Zotlabs/Module/Pin.php')

diff --git a/Zotlabs/Module/Pin.php b/Zotlabs/Module/Pin.php
new file mode 100644
index 000000000..74297aa7c
--- /dev/null
+++ b/Zotlabs/Module/Pin.php
@@ -0,0 +1,68 @@
+<?php
+namespace Zotlabs\Module;
+
+/*
+ * Pinned post processing
+ */
+
+use App;
+
+class Pin extends \Zotlabs\Web\Controller {
+
+
+	function init() {
+
+		if(argc() !== 2)
+			http_status_exit(400, 'Bad request');
+	}
+
+
+	function post() {
+
+		$item_id = intval($_POST['id']);
+
+		if ($item_id <= 0)
+			http_status_exit(404, 'Not found');
+
+		$observer = \App::get_observer();
+		if(! $observer)
+			http_status_exit(403, 'Forbidden');
+
+		$r = q("SELECT * FROM item WHERE id = %d AND id = parent AND item_private = 0 LIMIT 1",
+			$item_id
+		);
+		if(! $r) {
+			notice(t('Unable to locate original post.'));
+			http_status_exit(404, 'Not found');
+		}
+
+		$midb64 = 'b64.' . base64url_encode($r[0]['mid']);
+		$pinned = (in_array($midb64, get_pconfig($r[0]['uid'], 'pinned', $r[0]['item_type'], [])) ? true : false);
+
+		switch(argv(1)) {
+
+			case 'pin':
+				if(! local_channel() || local_channel() != $r[0]['uid'])
+					http_status_exit(403, 'Forbidden');
+				// Currently allow only one pinned item for each type
+				set_pconfig($r[0]['uid'], 'pinned', $r[0]['item_type'], ($pinned ? [] : [ $midb64 ]));
+				if($pinned)
+					del_pconfig($r[0]['uid'], 'pinned_hide', $midb64);
+				break;
+
+			case 'hide':
+				if($pinned) {
+					$hidden = get_pconfig($r[0]['uid'], 'pinned_hide', $midb64, []);
+					if(! in_array($observer['xchan_hash'], $hidden)) {
+						$hidden[] = $observer['xchan_hash'];
+						set_pconfig($r[0]['uid'], 'pinned_hide', $midb64, $hidden);
+					}
+				}
+
+			default:
+				http_status_exit(404, 'Not found');
+		}
+
+		build_sync_packet($r[0]['uid'], [ 'config' ]);
+	}
+}
-- 
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