1 files changed, 45 insertions, 3 deletions
diff --git a/frontend/src/backend.js b/frontend/src/backend.js
index 72ee9dd..dc5089f 100644
--- a/frontend/src/backend.js
+++ b/frontend/src/backend.js
@@ -1,7 +1,23 @@
+/*
+ * This file is part of caronte (https://github.com/eciavatta/caronte).
+ * Copyright (c) 2020 Emiliano Ciavatta.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 
 async function json(method, url, data, json, headers) {
     const options = {
-        method: method,
+        method,
         body: json != null ? JSON.stringify(json) : data,
         mode: "cors",
         cache: "no-cache",
@@ -26,9 +42,33 @@ async function json(method, url, data, json, headers) {
     }
 }
 
+async function download(url, headers) {
+
+    const options = {
+        mode: "cors",
+        cache: "no-cache",
+        credentials: "same-origin",
+        headers: headers || {},
+        redirect: "follow",
+        referrerPolicy: "no-referrer",
+    };
+    const response = await fetch(url, options);
+    const result = {
+        statusCode: response.status,
+        status: `${response.status} ${response.statusText}`,
+        blob: await response.blob()
+    };
+
+    if (response.status >= 200 && response.status < 300) {
+        return result;
+    } else {
+        return Promise.reject(result);
+    }
+}
+
 const backend = {
     get: (url = "", headers = null) =>
-        json("GET", url, null,null, headers),
+        json("GET", url, null, null, headers),
     post: (url = "", data = null, headers = null) =>
         json("POST", url, null, data, headers),
     put: (url = "", data = null, headers = null) =>
@@ -36,7 +76,9 @@ const backend = {
     delete: (url = "", data = null, headers = null) =>
         json("DELETE", url, null, data, headers),
     postFile: (url = "", data = null, headers = {}) =>
-        json("POST", url, data, null, headers)
+        json("POST", url, data, null, headers),
+    download: (url = "", headers = null) =>
+        download(url, headers)
 };
 
 export default backend;