file invidious_01.php with several actual alternative webpages

file invidious.php modified with several actual alternative webpages

the original https://invidio.us link was replaced with https://invidious.fdn.fr
in commented text the sites https://invidious.exonip.de/ and https://ytb.trom.tf/
are added as alternatives.
these sites where refereed to on https://invidio.us
the selected sites display the original github invidious segwit btc address

invidious_01.php

@@ -0,0 +1,62 @@
+<?php
+/*
+ * Name: invidious
+ * Description: Replaces links to youtube.com to an invidious server in all displays of postings on a node.
+ * Version: 1.0
+ * Author: Tobias Diekershoff <tobias@social.diekershoff.de>
+ *
+ * Copyright (c) 2020 Tobias Diekershoff
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and 
+ * associated documentation files (the "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in all copies or substantial
+ * portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
+ * NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+use Friendica\Core\Addon;
+use Friendica\DI;
+
+function invidious_install() {
+    Addon::registerHook ('prepare_body', 'addon/invidious/invidious.php', 'invidious_render');
+}
+
+/*
+ *  replace "youtube.com" with "invidio.us"
+ * https://invidio.us
+ * https://invidious.fdn.fr/
+ * https://ytb.trom.tf/
+ * https://invidious.exonip.de/
+ * 
+ */
+function invidious_render(&$a, &$o) {
+    // this needs to be a system setting
+
+    $invidious = 'https://invidious.fdn.fr';
+	$replaced = false;
+    if (strstr($o[html],'https://www.youtube.com')) {
+		$o['html'] = str_replace('https://www.youtube.com', $invidious, $o[html]);
+		$replaced = true;
+    }
+    if (strstr($o[html],'https://youtube.com')) {
+		$o['html'] = str_replace('https://youtube.com', $invidious, $o[html]);
+		$replaced = true;
+    }
+    if (strstr($o[html],'https://youtu.be')) {
+		$o['html'] = str_replace('https://youtu.be', $invidious, $o[html]);
+		$replaced = true;
+	}
+	// add a note about the replacement
+	if ($replaced) {
+        $o['html'] .= '<hr><p>'.DI::l10n()->t('Links to Youtube in this posting were replaced by links to the Nitter instance at %s', $invidious).'</p>';
+	}
+}