1 files changed, 145 insertions, 0 deletions
diff --git a/platform/javascript/http_request.js b/platform/javascript/http_request.js
new file mode 100644
index 0000000000..f30240b41b
--- /dev/null
+++ b/platform/javascript/http_request.js
@@ -0,0 +1,145 @@
+/*************************************************************************/
+/*  http_request.js                                                      */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+var GodotHTTPRequest = {
+
+	$GodotHTTPRequest: {
+
+		requests: [],
+
+		getUnusedRequestId: function() {
+			var idMax = GodotHTTPRequest.requests.length;
+			for (var potentialId = 0; potentialId < idMax; ++potentialId) {
+				if (GodotHTTPRequest.requests[potentialId] instanceof XMLHttpRequest) {
+					continue;
+				}
+				return potentialId;
+			}
+			GodotHTTPRequest.requests.push(null)
+			return idMax;
+		},
+
+		setupRequest: function(xhr) {
+			xhr.responseType = 'arraybuffer';
+		},
+	},
+
+	godot_xhr_new: function() {
+		var newId = GodotHTTPRequest.getUnusedRequestId();
+		GodotHTTPRequest.requests[newId] = new XMLHttpRequest;
+		GodotHTTPRequest.setupRequest(GodotHTTPRequest.requests[newId]);
+		return newId;
+	},
+
+	godot_xhr_reset: function(xhrId) {
+		GodotHTTPRequest.requests[xhrId] = new XMLHttpRequest;
+		GodotHTTPRequest.setupRequest(GodotHTTPRequest.requests[xhrId]);
+	},
+
+	godot_xhr_free: function(xhrId) {
+		GodotHTTPRequest.requests[xhrId].abort();
+		GodotHTTPRequest.requests[xhrId] = null;
+	},
+
+	godot_xhr_open: function(xhrId, method, url, user, password) {
+		user = user > 0 ? UTF8ToString(user) : null;
+		password = password > 0 ? UTF8ToString(password) : null;
+		GodotHTTPRequest.requests[xhrId].open(UTF8ToString(method), UTF8ToString(url), true, user, password);
+	},
+
+	godot_xhr_set_request_header: function(xhrId, header, value) {
+		GodotHTTPRequest.requests[xhrId].setRequestHeader(UTF8ToString(header), UTF8ToString(value));
+	},
+
+	godot_xhr_send_null: function(xhrId) {
+		GodotHTTPRequest.requests[xhrId].send();
+	},
+
+	godot_xhr_send_string: function(xhrId, strPtr) {
+		if (!strPtr) {
+			Module.printErr("Failed to send string per XHR: null pointer");
+			return;
+		}
+		GodotHTTPRequest.requests[xhrId].send(UTF8ToString(strPtr));
+	},
+
+	godot_xhr_send_data: function(xhrId, ptr, len) {
+		if (!ptr) {
+			Module.printErr("Failed to send data per XHR: null pointer");
+			return;
+		}
+		if (len < 0) {
+			Module.printErr("Failed to send data per XHR: buffer length less than 0");
+			return;
+		}
+		GodotHTTPRequest.requests[xhrId].send(HEAPU8.subarray(ptr, ptr + len));
+	},
+
+	godot_xhr_abort: function(xhrId) {
+		GodotHTTPRequest.requests[xhrId].abort();
+	},
+
+	godot_xhr_get_status: function(xhrId) {
+		return GodotHTTPRequest.requests[xhrId].status;
+	},
+
+	godot_xhr_get_ready_state: function(xhrId) {
+		return GodotHTTPRequest.requests[xhrId].readyState;
+	},
+
+	godot_xhr_get_response_headers_length: function(xhrId) {
+		var headers = GodotHTTPRequest.requests[xhrId].getAllResponseHeaders();
+		return headers === null ? 0 : lengthBytesUTF8(headers);
+	},
+
+	godot_xhr_get_response_headers: function(xhrId, dst, len) {
+		var str = GodotHTTPRequest.requests[xhrId].getAllResponseHeaders();
+		if (str === null)
+			return;
+		var buf = new Uint8Array(len + 1);
+		stringToUTF8Array(str, buf, 0, buf.length);
+		buf = buf.subarray(0, -1);
+		HEAPU8.set(buf, dst);
+	},
+
+	godot_xhr_get_response_length: function(xhrId) {
+		var body = GodotHTTPRequest.requests[xhrId].response;
+		return body === null ? 0 : body.byteLength;
+	},
+
+	godot_xhr_get_response: function(xhrId, dst, len) {
+		var buf = GodotHTTPRequest.requests[xhrId].response;
+		if (buf === null)
+			return;
+		buf = new Uint8Array(buf).subarray(0, len);
+		HEAPU8.set(buf, dst);
+	},
+};
+
+autoAddDeps(GodotHTTPRequest, "$GodotHTTPRequest");
+mergeInto(LibraryManager.library, GodotHTTPRequest);