feat(XHR): support HTTP proxy

Author: Xmader

python/pythonmonkey/builtin_modules/XMLHttpRequest-internal.d.ts

@@ -36,6 +36,7 @@ export declare function request(
   headers: Record<string, string>,
   body: string | Uint8Array,
   timeoutMs: number,
+  proxy: string,
   // callbacks for request body progress
   processRequestBodyChunkLength: (bytesLength: number) => void,
   processRequestEndOfBody: () => void,

python/pythonmonkey/builtin_modules/XMLHttpRequest-internal.py

@@ -34,6 +34,7 @@ async def request(
     headers: dict,
     body: Union[str, ByteString],
     timeoutMs: float,
+    proxy: str,
     # callbacks for request body progress
     processRequestBodyChunkLength: Callable[[int], None],
     processRequestEndOfBody: Callable[[], None],
@@ -90,6 +91,7 @@ async def write(self, writer) -> None:
                                data=BytesPayloadWithProgress(body) if body else None,
                                timeout=timeoutOptions,
                                connector=keepAliveConnector,
+                               proxy=proxy if proxy else None,
                                ) as res:
       debug('xhr:aiohttp')('got', res.content_type, 'result')
 

python/pythonmonkey/builtin_modules/XMLHttpRequest.js

@@ -240,6 +240,11 @@ class XMLHttpRequest extends XMLHttpRequestEventTarget
    */
   timeout = 0;
 
+  /**
+   * URL of HTTP proxy to use
+   */
+  proxy = '';
+
   /**
    * A boolean value that indicates whether or not cross-site `Access-Control` requests should be made using credentials such as cookies, authorization headers or TLS client certificates.  
    * Setting withCredentials has no effect on same-origin requests.
@@ -418,6 +423,7 @@ class XMLHttpRequest extends XMLHttpRequestEventTarget
       this.#requestHeaders,
       this.#requestBody ?? '',
       this.timeout,
+      this.proxy,
       processRequestBodyChunkLength,
       processRequestEndOfBody,
       processResponse,