Standards

[friendica.git] / src / Model / GServer.php

diff --git a/src/Model/GServer.php b/src/Model/GServer.php
index e91a946e0bf3e0362b03e0dd2da7db2385ac7097..7e1d178ddfe1bf6986f36cc9464b00b95f165148 100644 (file)
--- a/src/Model/GServer.php
+++ b/src/Model/GServer.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * @copyright Copyright (C) 2020, Friendica
+ * @copyright Copyright (C) 2010-2021, the Friendica project
  *
  * @license GNU AGPL version 3 or any later version
  *
@@ -23,6 +23,7 @@ namespace Friendica\Model;
 
 use DOMDocument;
 use DOMXPath;
+use Exception;
 use Friendica\Core\Logger;
 use Friendica\Core\Protocol;
 use Friendica\Core\System;
@@ -801,6 +802,7 @@ class GServer
        /**
         * Parses Nodeinfo 2
         *
+        * @see https://git.feneas.org/jaywink/nodeinfo2
         * @param string $nodeinfo_url address of the nodeinfo path
         * @return array Server data
         * @throws \Friendica\Network\HTTPException\InternalServerErrorException
@@ -849,7 +851,9 @@ class GServer
                if (!empty($nodeinfo['protocols'])) {
                        $protocols = [];
                        foreach ($nodeinfo['protocols'] as $protocol) {
-                               $protocols[$protocol] = true;
+                               if (is_string($protocol)) {
+                                       $protocols[$protocol] = true;
+                               }
                        }
 
                        if (!empty($protocols['dfrn'])) {
@@ -1474,6 +1478,10 @@ class GServer
         */
        private static function analyseRootBody($curlResult, array $serverdata, string $url)
        {
+               if (empty($curlResult->getBody())) {
+                       return $serverdata;
+               }
+
                $doc = new DOMDocument();
                @$doc->loadHTML($curlResult->getBody());
                $xpath = new DOMXPath($doc);
@@ -1734,4 +1742,86 @@ class GServer
 
                DI::config()->set('poco', 'last_federation_discovery', time());
        }
+
+       /**
+        * Set the protocol for the given server
+        *
+        * @param int $gsid     Server id
+        * @param int $protocol Protocol id
+        * @return void 
+        * @throws Exception 
+        */
+       public static function setProtocol(int $gsid, int $protocol)
+       {
+               if (empty($gsid)) {
+                       return;
+               }
+
+               $gserver = DBA::selectFirst('gserver', ['protocol', 'url'], ['id' => $gsid]);
+               if (!DBA::isResult($gserver)) {
+                       return;
+               }
+
+               $old = $gserver['protocol'];
+
+               if (!is_null($old)) {
+                       /*
+                       The priority for the protocols is:
+                               1. ActivityPub
+                               2. DFRN via Diaspora
+                               3. Legacy DFRN
+                               4. Diaspora
+                               5. OStatus
+                       */
+
+                       // We don't need to change it when nothing is to be changed
+                       if ($old == $protocol) {
+                               return;
+                       }
+
+                       // We don't want to mark a server as OStatus when it had been marked with any other protocol before
+                       if ($protocol == Post\DeliveryData::OSTATUS) {
+                               return;
+                       }
+
+                       // If the server is marked as ActivityPub then we won't change it to anything different
+                       if ($old == Post\DeliveryData::ACTIVITYPUB) {
+                               return;
+                       }
+
+                       // Don't change it to anything lower than DFRN if the new one wasn't ActivityPub
+                       if (($old == Post\DeliveryData::DFRN) && ($protocol != Post\DeliveryData::ACTIVITYPUB)) {
+                               return;
+                       }
+
+                       // Don't change it to Diaspora when it is a legacy DFRN server
+                       if (($old == Post\DeliveryData::LEGACY_DFRN) && ($protocol == Post\DeliveryData::DIASPORA)) {
+                               return;
+                       }
+               }
+
+               Logger::info('Protocol for server', ['protocol' => $protocol, 'old' => $old, 'id' => $gsid, 'url' => $gserver['url'], 'callstack' => System::callstack(20)]);
+               DBA::update('gserver', ['protocol' => $protocol], ['id' => $gsid]);
+       }
+
+       /**
+        * Fetch the protocol of the given server
+        *
+        * @param int $gsid Server id
+        * @return int 
+        * @throws Exception 
+        */
+       public static function getProtocol(int $gsid)
+       {
+               if (empty($gsid)) {
+                       return null;
+               }
+
+               $gserver = DBA::selectFirst('gserver', ['protocol'], ['id' => $gsid]);
+               if (DBA::isResult($gserver)) {
+                       return $gserver['protocol'];
+               }
+
+               return null;
+       }
 }