Implemented middleware handling. Also converted middleware handlers to the new stystem.

core/http/middleware.cpp

@@ -7,7 +7,7 @@ bool Middleware::on_before_handle_request_main(Request *request) {
 	return false;
 }
 
-Middleware::Middleware() {
+Middleware::Middleware() : Reference() {
 }
 
 Middleware::~Middleware() {

core/http/session_manager.cpp

@@ -152,7 +152,7 @@ void SessionManager::load_sessions() {
 
 	b->select("id, session_id");
 	b->from(_table_name);
-	//b->print();
+	// b->print();
 	Ref<QueryResult> r = b->run();
 
 	while (r->next_row()) {
@@ -171,7 +171,7 @@ void SessionManager::load_sessions() {
 
 	b->select("session_db_id, key, value");
 	b->from(_data_table_name);
-	//b->print();
+	// b->print();
 	r = b->run();
 
 	while (r->next_row()) {
@@ -213,7 +213,7 @@ void SessionManager::clear() {
 }
 
 String SessionManager::generate_session_id(const String &base) {
-	//todo make something simpler / better
+	// todo make something simpler / better
 
 	SHA256 *h = SHA256::get();
 	String sid = base;
@@ -229,26 +229,6 @@ String SessionManager::generate_session_id(const String &base) {
 	return sid;
 }
 
-void SessionManager::session_setup_middleware(Object *instance, Request *request) {
-	const String sid = request->get_cookie("session_id");
-
-	if (sid == "") {
-		//You could create a session here if you want to always assign sessions to visitors.
-		//Example code:
-		//HTTPSession *session = SessionManager::get_singleton()->create_session();
-		//request->session = session;
-		//request->add_cookie(::Cookie("session_id", session->session_id));
-
-		request->next_stage();
-
-		return;
-	}
-
-	request->session = SessionManager::get_singleton()->get_session(sid);
-
-	request->next_stage();
-}
-
 void SessionManager::migrate() {
 	drop_table();
 	create_table();
@@ -262,7 +242,7 @@ void SessionManager::create_table() {
 	tb->varchar("session_id", 100)->next_row();
 	tb->primary_key("id");
 	tb->ccreate_table();
-	//tb->print();
+	// tb->print();
 	tb->run_query();
 
 	tb->result = "";
@@ -274,7 +254,7 @@ void SessionManager::create_table() {
 	tb->foreign_key("session_db_id");
 	tb->references(_table_name, "id");
 	tb->ccreate_table();
-	//tb->print();
+	// tb->print();
 	tb->run_query();
 }
 void SessionManager::drop_table() {
@@ -310,4 +290,27 @@ SessionManager::~SessionManager() {
 
 SessionManager *SessionManager::_self = nullptr;
 String SessionManager::_table_name = "sessions";
-String SessionManager::_data_table_name = "session_data";
+String SessionManager::_data_table_name = "session_data";
+
+bool SessionSetupMiddleware::on_before_handle_request_main(Request *request) {
+	const String sid = request->get_cookie("session_id");
+
+	if (sid == "") {
+		// You could create a session here if you want to always assign sessions to visitors.
+		// Example code:
+		// HTTPSession *session = SessionManager::get_singleton()->create_session();
+		// request->session = session;
+		// request->add_cookie(::Cookie("session_id", session->session_id));
+
+		return false;
+	}
+
+	request->session = SessionManager::get_singleton()->get_session(sid);
+
+	return false;
+}
+
+SessionSetupMiddleware::SessionSetupMiddleware() {
+}
+SessionSetupMiddleware::~SessionSetupMiddleware() {
+}

core/http/session_manager.h

@@ -3,11 +3,12 @@
 
 #include "core/string.h"
 #include "core/containers/vector.h"
+#include <mutex>
+#include <map>
 
 #include "core/object.h"
 
-#include <map>
-#include <mutex>
+#include "middleware.h"
 
 class HTTPSession;
 class Request;
@@ -29,8 +30,6 @@ public:
 
 	virtual String generate_session_id(const String &base = "");
 
-	static void session_setup_middleware(Object *instance, Request *request);
-
 	virtual void migrate();
 	virtual void create_table();
 	virtual void drop_table();
@@ -51,4 +50,15 @@ protected:
 	static String _data_table_name;
 };
 
+class SessionSetupMiddleware : public Middleware {
+	RCPP_OBJECT(SessionSetupMiddleware, Middleware);
+
+public:
+	//returnring true means handled, false means continue
+	bool on_before_handle_request_main(Request *request);
+
+	SessionSetupMiddleware();
+	~SessionSetupMiddleware();
+};
+
 #endif

core/http/web_root.cpp

@@ -22,54 +22,21 @@ void WebRoot::setup_routes() {
 }
 
 void WebRoot::setup_middleware() {
-	// If you want sessions add this to your inherited class. Should probably be the first one.
-	// middlewares.push_back(HandlerInstance(::SessionManager::session_setup_middleware));
+	// Middlewares get processed in the order they are in the _middlewares array
 
-	middlewares.push_back(HandlerInstance([this](Object *instance, Request *request) { this->default_routing_middleware(instance, request); }));
-}
+	// If you want sessions add this to your inherited class. 
+	// _middlewares.push_back(Ref<SessionSetupMiddleware>(new SessionSetupMiddleware()));
 
-void WebRoot::default_routing_middleware(Object *instance, Request *request) {
-	// handle default phase 1
-	std::string path = request->get_path_full();
+	// This one looks up users based on sessions
+	// _middlewares.push_back(Ref<UserSessionSetupMiddleware>(new UserSessionSetupMiddleware()));
 
-	if (FileCache::get_singleton()->wwwroot_has_file(path)) {
-		send_file(path, request);
-
-		return;
-	}
-
-	// call parent handle default
-
-	// from this this will be handled by web router node by default
-	HandlerInstance handler_data;
-
-	// std::function<void(Object *, Request *)> func;
-
-	// if (path == "/") {
-	if (request->get_path_segment_count() == 0) {
-		// quick shortcut
-		handler_data = index_func;
-	} else {
-		const std::string main_route = request->get_current_path_segment();
-
-		handler_data = main_route_map[main_route];
-
-		request->push_path();
-	}
-
-	if (!handler_data.handler_func) {
-		send_error(404, request);
-
-		return;
-	}
-
-	request->handler_instance = handler_data;
-	request->next_stage();
+	// Same as the previous, but if you want the RBAC system to work use one of these
+	// _middlewares.push_back(Ref<RBACUserSessionSetupMiddleware>(new RBACUserSessionSetupMiddleware()));
+	// _middlewares.push_back(Ref<RBACDefaultUserSessionSetupMiddleware>(new RBACDefaultUserSessionSetupMiddleware()));
 }
 
 void WebRoot::default_fallback_error_handler(Request *request, int error_code) {
 	request->compiled_body = default_generic_error_body;
-
 	request->send();
 }
 
@@ -79,9 +46,12 @@ void WebRoot::default_404_error_handler(Request *request, int error_code) {
 }
 
 void WebRoot::handle_request_main(Request *request) {
-	// request->middleware_stack = &middlewares;
-	// note that middlewares handle the routing -> WebRoot::default_routing_middleware by default
-	// request->next_stage();
+	for (int i = 0; i < _middlewares.size(); ++i) {
+		if (_middlewares[i]->on_before_handle_request_main(request)) {
+			//handled
+			return;
+		}
+	}
 
 	// handle files first
 	if (try_send_wwwroot_file(request)) {

core/http/web_root.h

@@ -1,30 +1,28 @@
 #ifndef WEB_ROOT_H
 #define WEB_ROOT_H
 
-#include "web_router_node.h"
+#include "core/containers/vector.h"
+#include "mutex"
 #include <functional>
 #include <map>
 #include <string>
 #include <vector>
 
-#include "mutex"
+#include "web_router_node.h"
 
 #include "handler_instance.h"
+#include "middleware.h"
 
 class Request;
 
-//Middleware turn into a class (reference)
-//add them to a folder
-//method should return bool -> true to continue, false if done
+// FileCache -> set up, for this webroot, don't use singleton
 
-//FileCache -> set up, for this webroot, don't use singleton
+// clean up unused things here
+// remove handler instances!
 
-//clean up unused things here
-//remove handler instances!
+// Update the rest of the modules to the new systems
 
-//Update the rest of the modules to the new systems
-
-//remove middleware stack from request
+// remove middleware stack from request
 
 class WebRoot : public WebRouterNode {
 	RCPP_OBJECT(WebRoot, WebRouterNode);
@@ -63,6 +61,8 @@ public:
 	std::map<std::string, HandlerInstance> main_route_map;
 	std::vector<HandlerInstance> middlewares;
 
+	Vector<Ref<Middleware> > _middlewares;
+
 	std::map<int, std::function<void(Request *, int)> > error_handler_map;
 	std::function<void(Request *, int)> default_error_handler_func;
 

modules/rbac_users/rbac_user_controller.cpp

@@ -7,81 +7,6 @@
 #include "modules/rbac/rbac_default_permissions.h"
 #include "rbac_user.h"
 
-void RBACUserController::rbac_user_session_setup_middleware(Object *instance, Request *request) {
-	if (request->session) {
-		int user_id = request->session->get_int("user_id");
-
-		if (user_id != 0) {
-
-			Ref<RBACUser> u = UserController::get_singleton()->db_get_user(user_id);
-
-			if (u.is_valid()) {
-				request->reference_data["user"] = u;
-			} else {
-				// log
-				request->session->remove_int("user_id");
-			}
-		}
-	}
-
-	request->next_stage();
-}
-
-void RBACUserController::rbac_default_user_session_middleware(Object *instance, Request *request) {
-	// note: add a new file handler middleware func, so basic file handling is easy to set up before this
-
-	Ref<RBACRank> rank;
-
-	if (request->session) {
-		int user_id = request->session->get_int("user_id");
-
-		if (user_id != 0) {
-
-			Ref<RBACUser> u = UserController::get_singleton()->db_get_user(user_id);
-
-			if (u.is_valid()) {
-				rank = u->rbac_rank;
-
-				request->reference_data["user"] = u;
-			} else {
-				// log
-				request->session->remove_int("user_id");
-			}
-		}
-	}
-
-	if (!rank.is_valid()) {
-		rank = RBACController::get_singleton()->get_default_rank();
-
-		if (!rank.is_valid()) {
-			if (RBACController::get_singleton()->continue_on_missing_default_rank()) {
-				RLOG_ERR("get_default_rank() has not been set up properly!!! Continuing!");
-				request->next_stage();
-			} else {
-				RLOG_ERR("get_default_rank() has not been set up properly!!! Sending 404!");
-				request->send_error(404);
-			}
-
-			return;
-		}
-	}
-
-	if (!rank->has_permission(request, User::PERMISSION_READ)) {
-		if (rank->has_rank_permission(RBAC_RANK_PERMISSION_USE_REDIRECT)) {
-			// Note this can make the webapp prone to enumerations, if not done correctly
-			// e.g. redirect from /admin, but sending 404 on a non existing uri, which does not have
-			// a special rbac entry
-			request->send_redirect(RBACController::get_singleton()->get_redirect_url());
-			return;
-		}
-
-		request->send_error(404);
-		return;
-	}
-
-	request->next_stage();
-}
-
 Ref<User> RBACUserController::db_get_user(const int id) {
 	Ref<RBACUser> u = UserController::db_get_user(id);
 
@@ -131,3 +56,91 @@ RBACUserController::RBACUserController() :
 
 RBACUserController::~RBACUserController() {
 }
+
+// returnring true means handled, false means continue
+bool RBACUserSessionSetupMiddleware::on_before_handle_request_main(Request *request) {
+	if (request->session) {
+		int user_id = request->session->get_int("user_id");
+
+		if (user_id != 0) {
+
+			Ref<RBACUser> u = UserController::get_singleton()->db_get_user(user_id);
+
+			if (u.is_valid()) {
+				request->reference_data["user"] = u;
+			} else {
+				// log
+				request->session->remove_int("user_id");
+			}
+		}
+	}
+
+	return false;
+}
+
+RBACUserSessionSetupMiddleware::RBACUserSessionSetupMiddleware() {
+}
+RBACUserSessionSetupMiddleware::~RBACUserSessionSetupMiddleware() {
+}
+
+// returnring true means handled, false means continue
+bool RBACDefaultUserSessionSetupMiddleware::on_before_handle_request_main(Request *request) {
+	// note: add a new file handler middleware func, so basic file handling is easy to set up before this
+
+	Ref<RBACRank> rank;
+
+	if (request->session) {
+		int user_id = request->session->get_int("user_id");
+
+		if (user_id != 0) {
+
+			Ref<RBACUser> u = UserController::get_singleton()->db_get_user(user_id);
+
+			if (u.is_valid()) {
+				rank = u->rbac_rank;
+
+				request->reference_data["user"] = u;
+			} else {
+				// log
+				request->session->remove_int("user_id");
+			}
+		}
+	}
+
+	if (!rank.is_valid()) {
+		rank = RBACController::get_singleton()->get_default_rank();
+
+		if (!rank.is_valid()) {
+			if (RBACController::get_singleton()->continue_on_missing_default_rank()) {
+				RLOG_ERR("get_default_rank() has not been set up properly!!! Continuing!");
+				return false;
+			} else {
+				RLOG_ERR("get_default_rank() has not been set up properly!!! Sending 404!");
+				request->send_error(404);
+				return true;
+			}
+
+			
+		}
+	}
+
+	if (!rank->has_permission(request, User::PERMISSION_READ)) {
+		if (rank->has_rank_permission(RBAC_RANK_PERMISSION_USE_REDIRECT)) {
+			// Note this can make the webapp prone to enumerations, if not done correctly
+			// e.g. redirect from /admin, but sending 404 on a non existing uri, which does not have
+			// a special rbac entry
+			request->send_redirect(RBACController::get_singleton()->get_redirect_url());
+			return true;
+		}
+
+		request->send_error(404);
+		return true;
+	}
+
+	return false;
+}
+
+RBACDefaultUserSessionSetupMiddleware::RBACDefaultUserSessionSetupMiddleware() {
+}
+RBACDefaultUserSessionSetupMiddleware::~RBACDefaultUserSessionSetupMiddleware() {
+}

modules/rbac_users/rbac_user_controller.h

@@ -3,17 +3,14 @@
 
 #include "modules/users/user_controller.h"
 
+#include "core/http/middleware.h"
+
 class Request;
 
 class RBACUserController : public UserController {
 	RCPP_OBJECT(RBACUserController, UserController);
 
 public:
-	// just session setup
-	static void rbac_user_session_setup_middleware(Object *instance, Request *request);
-	// this one also handles missing read permission / redirect
-	static void rbac_default_user_session_middleware(Object *instance, Request *request);
-
 	// db
 
 	Ref<User> db_get_user(const int id);
@@ -29,4 +26,29 @@ public:
 protected:
 };
 
+// just session setup
+class RBACUserSessionSetupMiddleware : public Middleware {
+	RCPP_OBJECT(RBACUserSessionSetupMiddleware, Middleware);
+
+public:
+	//returnring true means handled, false means continue
+	bool on_before_handle_request_main(Request *request);
+
+	RBACUserSessionSetupMiddleware();
+	~RBACUserSessionSetupMiddleware();
+};
+
+// this one also handles missing read permission / redirect
+class RBACDefaultUserSessionSetupMiddleware : public Middleware {
+	RCPP_OBJECT(RBACDefaultUserSessionSetupMiddleware, Middleware);
+
+public:
+	//returnring true means handled, false means continue
+	bool on_before_handle_request_main(Request *request);
+
+	RBACDefaultUserSessionSetupMiddleware();
+	~RBACDefaultUserSessionSetupMiddleware();
+};
+
+
 #endif

modules/users/user_controller.cpp

@@ -503,26 +503,6 @@ void UserController::create_validators() {
 	}
 }
 
-void UserController::user_session_setup_middleware(Object *instance, Request *request) {
-	if (request->session) {
-		int user_id = request->session->get_int("user_id");
-
-		if (user_id != 0) {
-
-			Ref<User> u = UserController::get_singleton()->db_get_user(user_id);
-
-			if (u.is_valid()) {
-				request->reference_data["user"] = u;
-			} else {
-				// log
-				request->session->remove_int("user_id");
-			}
-		}
-	}
-
-	request->next_stage();
-}
-
 Ref<User> UserController::db_get_user(const int id) {
 	if (id == 0) {
 		return Ref<User>();
@@ -810,3 +790,30 @@ FormValidator *UserController::_profile_validator = nullptr;
 
 String UserController::_path = "./";
 String UserController::_table_name = "users";
+
+
+// returnring true means handled, false means continue
+bool UserSessionSetupMiddleware::on_before_handle_request_main(Request *request) {
+	if (request->session) {
+		int user_id = request->session->get_int("user_id");
+
+		if (user_id != 0) {
+
+			Ref<User> u = UserController::get_singleton()->db_get_user(user_id);
+
+			if (u.is_valid()) {
+				request->reference_data["user"] = u;
+			} else {
+				// log
+				request->session->remove_int("user_id");
+			}
+		}
+	}
+
+	return false;
+}
+
+UserSessionSetupMiddleware::UserSessionSetupMiddleware() {
+}
+UserSessionSetupMiddleware::~UserSessionSetupMiddleware() {
+}

modules/users/user_controller.h

@@ -7,6 +7,7 @@
 #include "core/http/web_node.h"
 
 #include "user.h"
+#include "core/http/middleware.h"
 
 class Request;
 class FormValidator;
@@ -62,8 +63,6 @@ public:
 
 	virtual void create_validators();
 
-	static void user_session_setup_middleware(Object *instance, Request *request);
-
 	// db
 
 	virtual Ref<User> db_get_user(const int id);
@@ -104,4 +103,17 @@ protected:
 	static String _table_name;
 };
 
+// just session setup
+class UserSessionSetupMiddleware : public Middleware {
+	RCPP_OBJECT(UserSessionSetupMiddleware, Middleware);
+
+public:
+	//returnring true means handled, false means continue
+	bool on_before_handle_request_main(Request *request);
+
+	UserSessionSetupMiddleware();
+	~UserSessionSetupMiddleware();
+};
+
+
 #endif