Detect pump.io servers

diff --git a/src/Model/GServer.php b/src/Model/GServer.php
index bf6672962e0c52fde76767681cf609bf96686a32..b9efae80400ce3e674b908f63331521d2217ab4d 100644 (file)
--- a/src/Model/GServer.php
+++ b/src/Model/GServer.php
@@ -67,6 +67,7 @@ class GServer
        const DETECT_MASTODON_API = 16;
        const DETECT_STATUS_PHP = 17; // Nextcloud
        const DETECT_V1_CONFIG = 18;
+       const DETECT_PUMPIO = 19;
 
        // Standardized endpoints
        const DETECT_STATISTICS_JSON = 100;
@@ -468,6 +469,10 @@ class GServer
                                $serverdata = self::detectGNUSocial($url, $serverdata);
                        }
 
+                       if (empty($serverdata['network'])) {
+                               $serverdata = self::detectPumpIO($url, $serverdata);
+                       }
+
                        $serverdata = array_merge($nodeinfo, $serverdata);
                } else {
                        $serverdata = $nodeinfo;
@@ -1366,7 +1371,57 @@ class GServer
                }
 
                return $val;
-        }
+    }
+
+       /**
+        * Detect if the URL belongs to a pump.io server
+        *
+        * @param string $url        URL of the given server
+        * @param array  $serverdata array with server data
+        *
+        * @return array server data
+        */
+       private static function detectPumpIO(string $url, array $serverdata)
+       {
+               $curlResult = DI::httpClient()->get($url . '/.well-known/host-meta.json');
+               if (!$curlResult->isSuccess()) {
+                       return $serverdata;
+               }
+
+               $data = json_decode($curlResult->getBody(), true);
+               if (empty($data['links'])) {
+                       return $serverdata;
+
+               }
+
+               // We are looking for some endpoints that are typical for pump.io
+               $trust = 0;
+               foreach ($data['links'] as $link) {
+                       if (empty($link['rel'])) {
+                               continue;
+                       }
+                       if (in_array($link['rel'], ['registration_endpoint', 'dialback', 'http://apinamespace.org/activitypub/whoami'])) {
+                               ++$trust;
+                       }
+               }
+
+               if ($trust == 3) {
+                       $serverdata['detection-method'] = self::DETECT_PUMPIO;
+
+                       $serverdata['platform'] = 'pumpio';
+                       $serverdata['version']  = '';
+                       $serverdata['network']  = Protocol::PUMPIO;
+
+                       $servers = $curlResult->getHeader('Server');
+                       foreach ($servers as $server) {
+                               if (preg_match("#pump.io/(.*)\s#U", $server, $matches)) {
+                                       $serverdata['version']  = $matches[1];
+                               }
+                       }
+               }
+
+               return $serverdata;
+       }
 
        /**
         * Detect if the URL belongs to a GNU Social server