use urlJoin

server/src/config.ts

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-import { convertType } from "./utils";
+import { convertType, urlJoin } from "./utils";
 
 const SERVER = {
   url: process.env.SERVER_URL,
@@ -28,14 +28,18 @@ const SERVER = {
   wsSuffix: "/ws",
 };
 
+const gatewayUrl = process.env.GATEWAY_URL || urlJoin(SERVER.url ?? "", "/api");
+
 const DEPLOYMENT = {
-  gatewayUrl: process.env.GATEWAY_URL || SERVER.url + "/api",
-  gatewayLoginUrl:
-    (process.env.GATEWAY_URL || SERVER.url + "/api") +
-    (process.env.GATEWAY_LOGIN_PATH || "/auth/login"),
-  gatewayLogoutUrl:
-    (process.env.GATEWAY_URL || SERVER.url + "/api") +
-    (process.env.GATEWAY_LOGOUT_PATH || "/auth/logout"),
+  gatewayUrl,
+  gatewayLoginUrl: urlJoin(
+    gatewayUrl,
+    process.env.GATEWAY_LOGIN_PATH || "/auth/login"
+  ),
+  gatewayLogoutUrl: urlJoin(
+    gatewayUrl,
+    process.env.GATEWAY_LOGOUT_PATH || "/auth/logout"
+  ),
 };
 
 const SENTRY = {

server/src/utils/index.ts

@@ -16,6 +16,8 @@
  * limitations under the License.
  */
 
+import urlJoin from "./url-join";
+
 
 /**
  * Convert string to booloan or numbers. Useful to handle values coming from environmental variables.
@@ -134,4 +136,4 @@ function simpleHash(str: string, seed = 0): number {
   return 4294967296 * (2097151 & h2) + (h1 >>> 0);
 }
 
-export { clamp, convertType, getCookieValueByName, getRelease, simpleHash, sleep };
+export { clamp, convertType, getCookieValueByName, getRelease, simpleHash, sleep, urlJoin };

server/src/utils/url-join.ts

@@ -0,0 +1,69 @@
+/* eslint-disable no-useless-escape */
+/* eslint-disable curly */
+
+/** url-join library from https://github.com/jfromaniello/url-join/blob/main/lib/url-join.js */
+function normalize(strArray: string[]) {
+  const resultArray = [];
+  if (strArray.length === 0) {
+    return "";
+  }
+
+  if (typeof strArray[0] !== "string") {
+    throw new TypeError("Url must be a string. Received " + strArray[0]);
+  }
+
+  // If the first part is a plain protocol, we combine it with the next part.
+  if (strArray[0].match(/^[^/:]+:\/*$/) && strArray.length > 1) {
+    strArray[0] = strArray.shift() + strArray[0];
+  }
+
+  // There must be two or three slashes in the file protocol, two slashes in anything else.
+  if (strArray[0].match(/^file:\/\/\//)) {
+    strArray[0] = strArray[0].replace(/^([^/:]+):\/*/, "$1:///");
+  } else {
+    strArray[0] = strArray[0].replace(/^([^/:]+):\/*/, "$1://");
+  }
+
+  for (let i = 0; i < strArray.length; i++) {
+    let component = strArray[i];
+
+    if (typeof component !== "string") {
+      throw new TypeError("Url must be a string. Received " + component);
+    }
+
+    if (component === "") {
+      continue;
+    }
+
+    if (i > 0) {
+      // Removing the starting slashes for each component but the first.
+      component = component.replace(/^[\/]+/, "");
+    }
+    if (i < strArray.length - 1) {
+      // Removing the ending slashes for each component but the last.
+      component = component.replace(/[\/]+$/, "");
+    } else {
+      // For the last component we will combine multiple slashes to a single one.
+      component = component.replace(/[\/]+$/, "/");
+    }
+
+    resultArray.push(component);
+  }
+
+  let str = resultArray.join("/");
+  // Each input component is now separated by a single slash except the possible first plain protocol part.
+
+  // remove trailing slash before parameters or hash
+  str = str.replace(/\/(\?|&|#[^!])/g, "$1");
+
+  // replace ? in parameters with &
+  const parts = str.split("?");
+  str = parts.shift() + (parts.length > 0 ? "?" : "") + parts.join("&");
+
+  return str;
+}
+
+export default function urlJoin(...args: string[]): string {
+  const parts = Array.from(Array.isArray(args[0]) ? args[0] : args);
+  return normalize(parts);
+}