add support for relative urls

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Libcurl.js Changelog:
 
+## v0.6.8 (4/30/24):
+- Add support for relative URLs in HTTP sessions
+- Better error handling for invalid URLs
+
 ## v0.6.7 (3/26/24):
 - Fix handling of `Request` objects when passed into `libcurl.fetch`
 
@@ -91,14 +95,14 @@
 - Add an option to redirect the verbose curl output.
 - Use separate callbacks for stdout and stderr.
 
-## v0.1.2 (2/1/23):
+## v0.1.2 (2/1/24):
 - Fix bundling the WASM into a single file
 - Add unit tests
 
-## v0.1.1 (1/29/23):
+## v0.1.1 (1/29/24):
 - Don't set a default websocket proxy URL
 
-## v0.1.0 (1/28/23):
+## v0.1.0 (1/28/24):
 - Initial release on NPM
 - Add Github Actions for automatic builds
 - Add WebSocket support

README.md

@@ -134,6 +134,17 @@ Each HTTP session has the following methods available:
 - `export_cookies` - Export any cookies which were recorded in the session. This will return an empty string if cookies are disabled or no cookies have been set yet. 
 - `close` - Close all connections and clean up the session. You must call this after you are done using the session, otherwise it will leak memory. 
 
+The following attributes are supported:
+- `base_url` - Set the base URL used to resolve relative URLs. If this is not defined then an error will be thrown when attempting to fetch a relative URL.
+
+```js
+let session = new libcurl.HTTPSession();
+session.base_url = "https://ading.dev";
+let r = await session.fetch("/projects/");
+console.log(await r.text());
+session.close();
+```
+
 ### Creating WebSocket Connections:
 To use WebSockets, create a `libcurl.CurlWebSocket` object, which takes the following arguments:
 - `url` - The Websocket URL.

client/javascript/http.js

@@ -2,6 +2,7 @@ class HTTPSession extends CurlSession {
   constructor(options={}) {
     super();
     this.options = options;
+    this.base_url = undefined;
 
     this.set_connections(50, 40);
     this.import_cookies();
@@ -90,6 +91,9 @@ class HTTPSession extends CurlSession {
       params.headers = params.headers || Object.fromEntries(resource.headers);
       params.method = params.method || resource.method;
     }
+    else {
+      url = (new URL(url, this.base_url)).href;
+    }
     let body = await this.constructor.create_options(params);
     return await this.request_async(url, params, body);
   }

client/package.json

@@ -1,6 +1,6 @@
 {
   "name": "libcurl.js",
-  "version": "0.6.7",
+  "version": "0.6.8",
   "description": "An experimental port of libcurl to WebAssembly for use in the browser.",
   "main": "libcurl.mjs",
   "exports": {