-Work on addon editor plugin (disabled by default)

-New HTTPRequest node, to make HTTP requests simpler.

scene/main/http_request.cpp

@@ -0,0 +1,426 @@
+#include "http_request.h"
+
+void HTTPRequest::_redirect_request(const String& p_new_url) {
+
+
+}
+
+Error HTTPRequest::_request() {
+
+	return client->connect(url,port,use_ssl,validate_ssl);
+}
+
+Error HTTPRequest::request(const String& p_url, const Vector<String>& p_custom_headers, bool p_ssl_validate_domain) {
+
+	ERR_FAIL_COND_V(!is_inside_tree(),ERR_UNCONFIGURED);
+	if ( requesting ) {
+		ERR_EXPLAIN("HTTPRequest is processing a request. Wait for completion or cancel it before attempting a new one.");
+		ERR_FAIL_V(ERR_BUSY);
+	}
+
+	url=p_url;
+	use_ssl=false;
+
+	request_string="";
+	port=80;
+	headers=p_custom_headers;
+	request_sent=false;
+	got_response=false;
+	validate_ssl=p_ssl_validate_domain;
+	body_len=-1;
+	body.resize(0);
+	redirections=0;
+
+	print_line("1 url: "+url);
+	if (url.begins_with("http://")) {
+
+		url=url.substr(7,url.length()-7);
+		print_line("no SSL");
+
+	} else if (url.begins_with("https://")) {
+		url=url.substr(8,url.length()-8);
+		use_ssl=true;
+		port=443;
+		print_line("yes SSL");
+	} else {
+		ERR_EXPLAIN("Malformed URL");
+		ERR_FAIL_V(ERR_INVALID_PARAMETER);
+	}
+
+	print_line("2 url: "+url);
+
+	int slash_pos = url.find("/");
+
+	if (slash_pos!=-1) {
+		request_string=url.substr(slash_pos,url.length());
+		url=url.substr(0,slash_pos);
+		print_line("request string: "+request_string);
+	} else {
+		request_string="/";
+		print_line("no request");
+	}
+
+	print_line("3 url: "+url);
+
+	int colon_pos = url.find(":");
+	if (colon_pos!=-1) {
+		port=url.substr(colon_pos+1,url.length()).to_int();
+		url=url.substr(0,colon_pos);
+		ERR_FAIL_COND_V(port<1 || port > 65535,ERR_INVALID_PARAMETER);
+	}
+
+	print_line("4 url: "+url);
+
+	bool has_user_agent=false;
+	bool has_accept=false;
+
+	for(int i=0;i<headers.size();i++) {
+
+		if (headers[i].findn("user-agent:")==0)
+			has_user_agent=true;
+		if (headers[i].findn("Accept:")==0)
+			has_accept=true;
+	}
+
+	if (!has_user_agent) {
+		headers.push_back("User-Agent: GodotEngine/"+String(VERSION_MKSTRING)+" ("+OS::get_singleton()->get_name()+")");
+	}
+
+	if (!has_accept) {
+		headers.push_back("Accept: */*");
+	}
+
+
+	Error err = _request();
+
+	if (err==OK) {
+		set_process(true);
+		requesting=true;
+	}
+
+
+	return err;
+}
+
+
+void HTTPRequest::cancel_request() {
+
+	if (!requesting)
+		return;
+
+	if (!use_threads) {
+		set_process(false);
+	}
+
+	client->close();
+	body.resize(0);
+	got_response=false;
+	response_code=-1;
+	body_len=-1;
+	request_sent=false;
+	requesting=false;
+}
+
+
+bool HTTPRequest::_update_connection() {
+
+	switch( client->get_status() ) {
+		case HTTPClient::STATUS_DISCONNECTED: {
+			return true; //end it, since it's doing something
+		} break;
+		case HTTPClient::STATUS_RESOLVING: {
+			client->poll();
+			//must wait
+			return false;
+		} break;
+		case HTTPClient::STATUS_CANT_RESOLVE: {
+			call_deferred("emit_signal","request_completed",RESULT_CANT_RESOLVE,0,StringArray(),ByteArray());
+			return true;
+
+		} break;
+		case HTTPClient::STATUS_CONNECTING: {
+			client->poll();
+			//must wait
+			return false;
+		} break; //connecting to ip
+		case HTTPClient::STATUS_CANT_CONNECT: {
+
+			call_deferred("emit_signal","request_completed",RESULT_CANT_CONNECT,0,StringArray(),ByteArray());
+			return true;
+
+		} break;
+		case HTTPClient::STATUS_CONNECTED: {
+
+			if (request_sent) {
+
+				if (!got_response) {
+
+					//no body
+
+					got_response=true;
+					response_code=client->get_response_code();
+					List<String> rheaders;
+					client->get_response_headers(&rheaders);
+					response_headers.resize(0);
+					for (List<String>::Element *E=rheaders.front();E;E=E->next()) {
+						print_line("HEADER: "+E->get());
+						response_headers.push_back(E->get());
+					}
+
+					if (response_code==301) {
+						//redirect
+						if (max_redirects>=0 && redirections>=max_redirects) {
+
+							call_deferred("emit_signal","request_completed",RESULT_REDIRECT_LIMIT_REACHED,response_code,response_headers,ByteArray());
+							return true;
+						}
+
+						String new_request;
+
+						for (List<String>::Element *E=rheaders.front();E;E=E->next()) {
+							if (E->get().findn("Location: ")!=-1) {
+								new_request=E->get().substr(9,E->get().length()).strip_edges();
+							}
+						}
+
+						print_line("NEW LOCATION: "+new_request);
+
+						if (new_request!="") {
+							//process redirect
+							client->close();
+							request_string=new_request;
+							int new_redirs=redirections+1; //because _request() will clear it
+							Error err = _request();
+							print_line("new connection: "+itos(err));
+							if (err==OK) {
+								request_sent=false;
+								got_response=false;
+								body_len=-1;
+								body.resize(0);
+								redirections=new_redirs;
+								return false;
+
+							}
+						}
+					}
+
+
+					call_deferred("emit_signal","request_completed",RESULT_SUCCESS,response_code,response_headers,ByteArray());
+					return true;
+				}
+				if (got_response && body_len<0) {
+					//chunked transfer is done
+					call_deferred("emit_signal","request_completed",RESULT_SUCCESS,response_code,response_headers,body);
+					return true;
+
+				}
+
+				call_deferred("emit_signal","request_completed",RESULT_CHUNKED_BODY_SIZE_MISMATCH,response_code,response_headers,ByteArray());
+				return true;
+				//request migh have been done
+			} else {
+				//did not request yet, do request
+
+				Error err = client->request(HTTPClient::METHOD_GET,request_string,headers);
+				if (err!=OK) {
+					call_deferred("emit_signal","request_completed",RESULT_CONNECTION_ERROR,0,StringArray(),ByteArray());
+					return true;
+				}
+
+				request_sent=true;
+				return false;
+			}
+		} break; //connected: { } break requests only accepted here
+		case HTTPClient::STATUS_REQUESTING: {
+			//must wait, it's requesting
+			client->poll();
+			return false;
+
+		} break; // request in progress
+		case HTTPClient::STATUS_BODY: {
+
+			if (!got_response) {
+				if (!client->has_response()) {
+					call_deferred("emit_signal","request_completed",RESULT_NO_RESPONSE,0,StringArray(),ByteArray());
+					return true;
+				}
+
+				got_response=true;
+				response_code=client->get_response_code();
+				List<String> rheaders;
+				client->get_response_headers(&rheaders);
+				response_headers.resize(0);
+				for (List<String>::Element *E=rheaders.front();E;E=E->next()) {
+					print_line("HEADER: "+E->get());
+					response_headers.push_back(E->get());
+				}
+
+				if (!client->is_response_chunked() && client->get_response_body_length()==0) {
+
+					call_deferred("emit_signal","request_completed",RESULT_SUCCESS,response_code,response_headers,ByteArray());
+					return true;
+				}
+
+
+				if (client->is_response_chunked()) {
+					body_len=-1;
+				} else {
+					body_len=client->get_response_body_length();
+
+					if (body_size_limit>=0 && body_len>body_size_limit) {
+						call_deferred("emit_signal","request_completed",RESULT_BODY_SIZE_LIMIT_EXCEEDED,response_code,response_headers,ByteArray());
+						return true;
+					}
+				}
+
+			}
+
+
+			//print_line("BODY: "+itos(body.size()));
+			client->poll();
+
+			body.append_array(client->read_response_body_chunk());
+
+			if (body_size_limit>=0 && body.size()>body_size_limit) {
+				call_deferred("emit_signal","request_completed",RESULT_BODY_SIZE_LIMIT_EXCEEDED,response_code,response_headers,ByteArray());
+				return true;
+			}
+
+			if (body_len>=0) {
+
+				if (body.size()==body_len) {
+					call_deferred("emit_signal","request_completed",RESULT_SUCCESS,response_code,response_headers,body);
+					return true;
+				}
+				/*if (body.size()>=body_len) {
+					call_deferred("emit_signal","request_completed",RESULT_BODY_SIZE_MISMATCH,response_code,response_headers,ByteArray());
+					return true;
+				}*/
+			}
+
+			return false;
+
+		} break; // request resulted in body: { } break which must be read
+		case HTTPClient::STATUS_CONNECTION_ERROR: {
+			call_deferred("emit_signal","request_completed",RESULT_CONNECTION_ERROR,0,StringArray(),ByteArray());
+			return true;
+		} break;
+		case HTTPClient::STATUS_SSL_HANDSHAKE_ERROR: {
+			call_deferred("emit_signal","request_completed",RESULT_SSL_HANDSHAKE_ERROR,0,StringArray(),ByteArray());
+			return true;
+		} break;
+
+	}
+
+	ERR_FAIL_V(false);
+}
+
+void HTTPRequest::_notification(int p_what) {
+
+	if (p_what==NOTIFICATION_PROCESS) {
+
+		bool done = _update_connection();
+		if (done) {
+
+			set_process(false);
+			cancel_request();
+		}
+	}
+}
+
+void HTTPRequest::set_use_threads(bool p_use) {
+
+	ERR_FAIL_COND( status!=HTTPClient::STATUS_DISCONNECTED );
+	use_threads=p_use;
+}
+
+bool HTTPRequest::is_using_threads() const {
+
+	return use_threads;
+}
+
+void HTTPRequest::set_body_size_limit(int p_bytes) {
+
+	ERR_FAIL_COND( status!=HTTPClient::STATUS_DISCONNECTED );
+
+	body_size_limit=p_bytes;
+}
+
+int HTTPRequest::get_body_size_limit() const {
+
+	return body_size_limit;
+}
+
+HTTPClient::Status HTTPRequest::get_http_client_status() const {
+	return client->get_status();
+}
+
+void HTTPRequest::set_max_redirects(int p_max) {
+
+	max_redirects=p_max;
+}
+
+int HTTPRequest::get_max_redirects() const{
+
+	return max_redirects;
+}
+
+
+void HTTPRequest::_bind_methods() {
+
+	ObjectTypeDB::bind_method(_MD("request","url","custom_headers","ssl_validate_domain"),&HTTPRequest::request,DEFVAL(StringArray()),DEFVAL(true));
+	ObjectTypeDB::bind_method(_MD("cancel_request"),&HTTPRequest::cancel_request);
+
+	ObjectTypeDB::bind_method(_MD("get_http_client_status"),&HTTPRequest::get_http_client_status);
+
+	ObjectTypeDB::bind_method(_MD("set_use_threads","enable"),&HTTPRequest::set_use_threads);
+	ObjectTypeDB::bind_method(_MD("is_using_threads"),&HTTPRequest::is_using_threads);
+
+	ObjectTypeDB::bind_method(_MD("set_body_size_limit","bytes"),&HTTPRequest::set_body_size_limit);
+	ObjectTypeDB::bind_method(_MD("get_body_size_limit"),&HTTPRequest::get_body_size_limit);
+
+	ObjectTypeDB::bind_method(_MD("set_max_redirects","amount"),&HTTPRequest::set_max_redirects);
+	ObjectTypeDB::bind_method(_MD("get_max_redirects"),&HTTPRequest::get_max_redirects);
+
+	ObjectTypeDB::bind_method(_MD("_redirect_request"),&HTTPRequest::_redirect_request);
+
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL,"use_threads"),_SCS("set_use_threads"),_SCS("is_using_threads"));
+	ADD_PROPERTY(PropertyInfo(Variant::INT,"body_size_limit",PROPERTY_HINT_RANGE,"-1,2000000000"),_SCS("set_body_size_limit"),_SCS("get_body_size_limit"));
+	ADD_PROPERTY(PropertyInfo(Variant::INT,"max_redirects",PROPERTY_HINT_RANGE,"-1,1024"),_SCS("set_max_redirects"),_SCS("get_max_redirects"));
+
+	ADD_SIGNAL(MethodInfo("request_completed",PropertyInfo(Variant::INT,"result"),PropertyInfo(Variant::INT,"response_code"),PropertyInfo(Variant::STRING_ARRAY,"headers"),PropertyInfo(Variant::RAW_ARRAY,"body")));
+
+	BIND_CONSTANT( RESULT_SUCCESS );
+	//BIND_CONSTANT( RESULT_NO_BODY );
+	BIND_CONSTANT( RESULT_CHUNKED_BODY_SIZE_MISMATCH );
+	BIND_CONSTANT( RESULT_CANT_CONNECT );
+	BIND_CONSTANT( RESULT_CANT_RESOLVE );
+	BIND_CONSTANT( RESULT_CONNECTION_ERROR );
+	BIND_CONSTANT( RESULT_SSL_HANDSHAKE_ERROR );
+	BIND_CONSTANT( RESULT_NO_RESPONSE );
+	BIND_CONSTANT( RESULT_BODY_SIZE_LIMIT_EXCEEDED );
+	BIND_CONSTANT( RESULT_REQUEST_FAILED );
+	BIND_CONSTANT( RESULT_REDIRECT_LIMIT_REACHED );
+
+}
+
+HTTPRequest::HTTPRequest()
+{
+
+
+	port=80;
+	redirections=0;
+	max_redirects=8;
+	body_len=-1;
+	got_response=false;
+	validate_ssl=false;
+	use_ssl=false;
+	response_code=0;
+	request_sent=false;
+	client.instance();
+	use_threads=false;
+	body_size_limit=-1;
+	status=HTTPClient::STATUS_DISCONNECTED;
+
+}
+