Flattr plugin version 1.2.0

wp-content/plugins/flattr/init.php

+<?php
+
+if ( isset($_GET['page'], $_GET['code']) && !isset($_GET['flattrJAX']) ) {
+    if ($_GET['page'] == "flattr/flattr.php") {
+
+        $flattr_domain = 'flattr.com';
+
+        $key = get_option('flattrss_api_key');
+        $sec = get_option('flattrss_api_secret');
+        $callback = urlencode(home_url()."/wp-admin/admin.php?page=flattr/flattr.php");
+
+        include_once 'flattr_client.php';
+
+        $basic_options = array(
+            'client_id'         => $key,
+            'client_secret'     => $sec,
+            'base_url'          => 'https://api.' . $flattr_domain . '/rest/v2',
+            'site_url'          => 'https://' . $flattr_domain,
+            'authorize_url'     => 'https://' . $flattr_domain . '/oauth/authorize',
+            'access_token_url'  => 'https://' . $flattr_domain . '/oauth/token',
+
+            'redirect_uri'      => $callback,
+            'scopes'            => 'thing+flattr',
+            'token_param_name'  => 'Bearer',
+            'response_type'     => 'code',
+            'grant_type'        => 'authorization_code',
+            'refresh_token'     => null,
+            'access_token'      => null,
+            'code'              => null,
+            'developer_mode'    => false
+        );
+
+        $client = new OAuth2Client($basic_options); 
+
+        try { 
+
+            $access_token = $client->fetchAccessToken($_GET['code']);
+
+            $client = new OAuth2Client(array_merge($basic_options, array(
+                'access_token' => $access_token
+            )));
+
+            try {
+
+                $user = $client->getParsed('/user');
+
+                if (!isset($user['error'])) {
+                    update_user_meta( get_current_user_id(), "user_flattrss_api_oauth_token", $access_token );
+
+                    if (current_user_can('activate_plugins')) {
+                        update_option('flattr_access_token', $access_token);
+                    }
+                }
+                if (!current_user_can('activate_plugins')) {
+                    header("Status: 307");
+                    header("Location: ". home_url()."/wp-admin/users.php?page=flattr/flattr.php?user");
+                    flush();
+                    exit (0);
+                }
+            } catch (Exception $e) {}
+        } catch (Exception $e) {}
+    } 
+}
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