Expose the resource name the client used to the websocket server

This information is exposed to the websocket server through the
client_connected-signal.

example.com/chat?id=10 gives the resource name "/chat?id=10"

6 files changed, 26 insertions, 21 deletions

diff --git a/modules/websocket/doc_classes/WebSocketServer.xml b/modules/websocket/doc_classes/WebSocketServer.xml
index 26e09fd8b3..5491f7de15 100644
--- a/modules/websocket/doc_classes/WebSocketServer.xml
+++ b/modules/websocket/doc_classes/WebSocketServer.xml
@@ -116,8 +116,11 @@
 			</argument>
 			<argument index="1" name="protocol" type="String">
 			</argument>
+			<argument index="2" name="resource_name" type="String">
+			</argument>
 			<description>
-				Emitted when a new client connects. "protocol" will be the sub-protocol agreed with the client.
+				Emitted when a new client connects. "protocol" will be the sub-protocol agreed with the client, and "resource_name" will be the resource name of the URI the peer used.
+				"resource_name" is a path (at the very least a single forward slash) and potentially a query string.
 			</description>
 		</signal>
 		<signal name="client_disconnected">
diff --git a/modules/websocket/emws_peer.cpp b/modules/websocket/emws_peer.cpp
index 1ad3bdc825..05f9e12ae1 100644
--- a/modules/websocket/emws_peer.cpp
+++ b/modules/websocket/emws_peer.cpp
@@ -56,7 +56,7 @@ Error EMWSPeer::put_packet(const uint8_t *p_buffer, int p_buffer_size) {
 	int is_bin = write_mode == WebSocketPeer::WRITE_MODE_BINARY ? 1 : 0;
 	godot_js_websocket_send(peer_sock, p_buffer, p_buffer_size, is_bin);
 	return OK;
-};
+}
 
 Error EMWSPeer::get_packet(const uint8_t **r_buffer, int &r_buffer_size) {
 	if (_in_buffer.packets_left() == 0)
@@ -70,19 +70,19 @@ Error EMWSPeer::get_packet(const uint8_t **r_buffer, int &r_buffer_size) {
 	r_buffer_size = read;
 
 	return OK;
-};
+}
 
 int EMWSPeer::get_available_packet_count() const {
 	return _in_buffer.packets_left();
-};
+}
 
 bool EMWSPeer::was_string_packet() const {
 	return _is_string;
-};
+}
 
 bool EMWSPeer::is_connected_to_host() const {
 	return peer_sock != -1;
-};
+}
 
 void EMWSPeer::close(int p_code, String p_reason) {
 	if (peer_sock != -1) {
@@ -91,7 +91,7 @@ void EMWSPeer::close(int p_code, String p_reason) {
 	_is_string = 0;
 	_in_buffer.clear();
 	peer_sock = -1;
-};
+}
 
 IPAddress EMWSPeer::get_connected_host() const {
 	ERR_FAIL_V_MSG(IPAddress(), "Not supported in HTML5 export.");
@@ -99,7 +99,7 @@ IPAddress EMWSPeer::get_connected_host() const {
 
 uint16_t EMWSPeer::get_connected_port() const {
 	ERR_FAIL_V_MSG(0, "Not supported in HTML5 export.");
-};
+}
 
 void EMWSPeer::set_no_delay(bool p_enabled) {
 	ERR_FAIL_MSG("'set_no_delay' is not supported in HTML5 export.");
@@ -107,10 +107,10 @@ void EMWSPeer::set_no_delay(bool p_enabled) {
 
 EMWSPeer::EMWSPeer() {
 	close();
-};
+}
 
 EMWSPeer::~EMWSPeer() {
 	close();
-};
+}
 
 #endif // JAVASCRIPT_ENABLED
diff --git a/modules/websocket/websocket_server.cpp b/modules/websocket/websocket_server.cpp
index b996852f28..79ca9e4667 100644
--- a/modules/websocket/websocket_server.cpp
+++ b/modules/websocket/websocket_server.cpp
@@ -71,7 +71,7 @@ void WebSocketServer::_bind_methods() {
 
 	ADD_SIGNAL(MethodInfo("client_close_request", PropertyInfo(Variant::INT, "id"), PropertyInfo(Variant::INT, "code"), PropertyInfo(Variant::STRING, "reason")));
 	ADD_SIGNAL(MethodInfo("client_disconnected", PropertyInfo(Variant::INT, "id"), PropertyInfo(Variant::BOOL, "was_clean_close")));
-	ADD_SIGNAL(MethodInfo("client_connected", PropertyInfo(Variant::INT, "id"), PropertyInfo(Variant::STRING, "protocol")));
+	ADD_SIGNAL(MethodInfo("client_connected", PropertyInfo(Variant::INT, "id"), PropertyInfo(Variant::STRING, "protocol"), PropertyInfo(Variant::STRING, "resource_name")));
 	ADD_SIGNAL(MethodInfo("data_received", PropertyInfo(Variant::INT, "id")));
 }
 
@@ -141,13 +141,13 @@ void WebSocketServer::_on_peer_packet(int32_t p_peer_id) {
 	}
 }
 
-void WebSocketServer::_on_connect(int32_t p_peer_id, String p_protocol) {
+void WebSocketServer::_on_connect(int32_t p_peer_id, String p_protocol, String p_resource_name) {
 	if (_is_multiplayer) {
 		// Send add to clients
 		_send_add(p_peer_id);
 		emit_signal("peer_connected", p_peer_id);
 	} else {
-		emit_signal("client_connected", p_peer_id, p_protocol);
+		emit_signal("client_connected", p_peer_id, p_protocol, p_resource_name);
 	}
 }
 
diff --git a/modules/websocket/websocket_server.h b/modules/websocket/websocket_server.h
index 26864f3085..c4d651471f 100644
--- a/modules/websocket/websocket_server.h
+++ b/modules/websocket/websocket_server.h
@@ -63,7 +63,7 @@ public:
 	virtual void disconnect_peer(int p_peer_id, int p_code = 1000, String p_reason = "") = 0;
 
 	void _on_peer_packet(int32_t p_peer_id);
-	void _on_connect(int32_t p_peer_id, String p_protocol);
+	void _on_connect(int32_t p_peer_id, String p_protocol, String p_resource_name);
 	void _on_disconnect(int32_t p_peer_id, bool p_was_clean);
 	void _on_close_request(int32_t p_peer_id, int p_code, String p_reason);
 
diff --git a/modules/websocket/wsl_server.cpp b/modules/websocket/wsl_server.cpp
index c889562732..5f794415af 100644
--- a/modules/websocket/wsl_server.cpp
+++ b/modules/websocket/wsl_server.cpp
@@ -34,7 +34,7 @@
 #include "core/config/project_settings.h"
 #include "core/os/os.h"
 
-bool WSLServer::PendingPeer::_parse_request(const Vector<String> p_protocols) {
+bool WSLServer::PendingPeer::_parse_request(const Vector<String> p_protocols, String &r_resource_name) {
 	Vector<String> psa = String((char *)req_buf).split("\r\n");
 	int len = psa.size();
 	ERR_FAIL_COND_V_MSG(len < 4, false, "Not enough response headers, got: " + itos(len) + ", expected >= 4.");
@@ -45,6 +45,7 @@ bool WSLServer::PendingPeer::_parse_request(const Vector<String> p_protocols) {
 	// Wrong protocol
 	ERR_FAIL_COND_V_MSG(req[0] != "GET" || req[2] != "HTTP/1.1", false, "Invalid method or HTTP version.");
 
+	r_resource_name = req[1];
 	Map<String, String> headers;
 	for (int i = 1; i < len; i++) {
 		Vector<String> header = psa[i].split(":", false, 1);
@@ -95,7 +96,7 @@ bool WSLServer::PendingPeer::_parse_request(const Vector<String> p_protocols) {
 	return true;
 }
 
-Error WSLServer::PendingPeer::do_handshake(const Vector<String> p_protocols, uint64_t p_timeout) {
+Error WSLServer::PendingPeer::do_handshake(const Vector<String> p_protocols, uint64_t p_timeout, String &r_resource_name) {
 	if (OS::get_singleton()->get_ticks_msec() - time > p_timeout) {
 		print_verbose(vformat("WebSocket handshake timed out after %.3f seconds.", p_timeout * 0.001));
 		return ERR_TIMEOUT;
@@ -130,7 +131,7 @@ Error WSLServer::PendingPeer::do_handshake(const Vector<String> p_protocols, uin
 			int l = req_pos;
 			if (l > 3 && r[l] == '\n' && r[l - 1] == '\r' && r[l - 2] == '\n' && r[l - 3] == '\r') {
 				r[l - 3] = '\0';
-				if (!_parse_request(p_protocols)) {
+				if (!_parse_request(p_protocols, r_resource_name)) {
 					return FAILED;
 				}
 				String s = "HTTP/1.1 101 Switching Protocols\r\n";
@@ -196,8 +197,9 @@ void WSLServer::poll() {
 
 	List<Ref<PendingPeer>> remove_peers;
 	for (List<Ref<PendingPeer>>::Element *E = _pending.front(); E; E = E->next()) {
+		String resource_name;
 		Ref<PendingPeer> ppeer = E->get();
-		Error err = ppeer->do_handshake(_protocols, handshake_timeout);
+		Error err = ppeer->do_handshake(_protocols, handshake_timeout, resource_name);
 		if (err == ERR_BUSY) {
 			continue;
 		} else if (err != OK) {
@@ -220,7 +222,7 @@ void WSLServer::poll() {
 
 		_peer_map[id] = ws_peer;
 		remove_peers.push_back(ppeer);
-		_on_connect(id, ppeer->protocol);
+		_on_connect(id, ppeer->protocol, resource_name);
 	}
 	for (List<Ref<PendingPeer>>::Element *E = remove_peers.front(); E; E = E->next()) {
 		_pending.erase(E->get());
diff --git a/modules/websocket/wsl_server.h b/modules/websocket/wsl_server.h
index a428c89f4f..93c8bd9604 100644
--- a/modules/websocket/wsl_server.h
+++ b/modules/websocket/wsl_server.h
@@ -46,7 +46,7 @@ class WSLServer : public WebSocketServer {
 private:
 	class PendingPeer : public RefCounted {
 	private:
-		bool _parse_request(const Vector<String> p_protocols);
+		bool _parse_request(const Vector<String> p_protocols, String &r_resource_name);
 
 	public:
 		Ref<StreamPeerTCP> tcp;
@@ -62,7 +62,7 @@ private:
 		CharString response;
 		int response_sent = 0;
 
-		Error do_handshake(const Vector<String> p_protocols, uint64_t p_timeout);
+		Error do_handshake(const Vector<String> p_protocols, uint64_t p_timeout, String &r_resource_name);
 	};
 
 	int _in_buf_size = DEF_BUF_SHIFT;