Update tester program so I don't have to keep remembering to remove my login credentials

.gitignore

@@ -13,3 +13,4 @@ lib*.a
 matrix-send
 .scripts
 windows_bs
+auth_file

src/test.cpp

@@ -55,18 +55,54 @@ void keyboard_fn(matrix::roomcxn cxn, std::atomic_bool& should_quit){
 	}
 }
 
+matrix::auth_data read_auth_file(const char* filename){
+	raii::filerd fp(filename, "r");
+	if(!fp){
+		return {};
+	}
+	raii::rjp_ptr root(rjp_parse(fp.read(fp.length())));
+	if(!root.get())
+		return {};
+
+	raii::rjp_string user = rjp_search_member(root.get(), "user", 0).value;
+	raii::rjp_string pass = rjp_search_member(root.get(), "pass", 0).value;
+	raii::rjp_string server = rjp_search_member(root.get(), "server", 0).value;
+	raii::rjp_string token = rjp_search_member(root.get(), "token", 0).value;
+	raii::rjp_string agent = rjp_search_member(root.get(), "useragent", 0).value;
+
+	return matrix::auth_data{user, pass, server, agent, token};
+}
+void write_to_auth_file(const char* filename, const matrix::auth_data& auth){
+	raii::rjp_ptr root(rjp_init_json_as(rjp_object()));
+	if(!root.get())
+		return;
+
+	rjp_add_member(root.get(), "user", 4, rjp_string_copy(auth.name));
+	rjp_add_member(root.get(), "pass", 4, rjp_string_copy(auth.pass));
+	rjp_add_member(root.get(), "server", 6, rjp_string_copy(auth.homeserver));
+	rjp_add_member(root.get(), "token", 5, rjp_string_copy(auth.access_token));
+	rjp_add_member(root.get(), "useragent", 9, rjp_string_copy(auth.useragent));
+	raii::rjp_string output;
+	output.reset(rjp_to_json(root.get()));
+
+	raii::filerd fp(filename, "w");
+	if(!fp)
+		return;
+	fp.write(output);
+}
+
 int main(){
-	const char* username = "username";
+	matrix::auth_data auth = read_auth_file("auth_file");
-	const char* password = "password";
-	const char* useragent = "rexy712s test bot";
-	const char* homeserver = "matrix.org";
-	matrix::auth_data auth{username, password, homeserver, useragent};
 
 	matrix::session ses(auth);
 	if(!ses.valid()){
 		fprintf(stderr, "Failed to init matrix session!\n");
 		return 1;
 	}
+	if(!auth.access_token){
+		auth.access_token = ses.access_token();
+		write_to_auth_file("auth_file", auth);
+	}
 	fprintf(stderr, "Succ\n");
 
 	std::atomic_bool should_quit = false;