fix: set correctly request->session

The session cookie was not created because request->session pointed at
a temporary session.

While here:
- do some cleaning in App
- set request->mount too
- add fcgi_cannot_create_request_delay to the config
- fix: in mailregister plugin get model_connector from env (and not from the request)

winixd/core/app.cpp

@@ -98,7 +98,7 @@ App::App()
 	config.SetFileLog(&file_log);
 	config.SetLogBuffer(&log_buffer);
 
-	cur.request = nullptr;
+	cur.request = nullptr; // they are first set in App::Init()
 	cur.session = nullptr;
 	cur.mount   = nullptr;
 
@@ -352,6 +352,12 @@ bool App::InitializePlugins()
 
 bool App::Init()
 {
+	cur.session = session_manager.GetTmpSession();
+	cur.mount   = system.mounts.GetEmptyMount();;
+	system.req_tab.resize(1);
+	cur.request = &system.req_tab.back();
+	InitializeNewRequest(*cur.request); // this will set cur.request->session (from cur.session) and cur.request->mount (from cur.mount)
+
 	if( !config.db_conn_string.empty() )
 		postgresql_connector.set_conn_param(config.db_conn_string);
 	else
@@ -617,9 +623,10 @@ void App::MakeRenameMeToABetterName()
 	cur.request->item.set_connector(model_connector);
 
 	cur.session = session_manager.PrepareSession();
+	cur.request->session = cur.session;
 	model_connector.set_winix_session(cur.session);
 
-	functions.CheckFunctionAndSymlink(); // here a function can be changed
+	functions.CheckFunctionAndSymlink(); // here a function can be changed (and mount point but cur.mount and cur->request->mount will be set)
 
 	if( cur.request->function )
 	{
@@ -628,6 +635,7 @@ void App::MakeRenameMeToABetterName()
 	}
 
 	cur.session = session_manager.CheckIfFunctionRequireSession();
+	cur.request->session = cur.session;
 	model_connector.set_winix_session(cur.session);
 
 	SetLocale();
@@ -736,6 +744,7 @@ void App::ProcessRequestThrow()
 			}
 
 			cur.mount = system.mounts.CalcCurMount(cur.request);
+			cur.request->mount = cur.mount;
 
 			if( cur.mount->type != system.mounts.MountTypeStatic() )
 			{
@@ -811,20 +820,20 @@ void App::ClearAfterRequest()
 }
 
 
-bool App::InitializeRequestForFastCGI()
+bool App::InitializeRequestForFastCGI(Request & request)
 {
 	bool request_initialized = false;
 
 	while( !synchro.was_stop_signal && !request_initialized )
 	{
-		if( FCGX_InitRequest(&cur.request->fcgi_request, fcgi_socket, FCGI_FAIL_ACCEPT_ON_INTR) == 0 )
+		if( FCGX_InitRequest(&request.fcgi_request, fcgi_socket, FCGI_FAIL_ACCEPT_ON_INTR) == 0 )
 		{
 			request_initialized = true;
 		}
 		else
 		{
 			log << log1 << "App: FCGX_InitRequest fails, I cannot read a new request, I wait 3s and will try again..." << logend << logsave;
-			sleep(3); // IMPROVEME put me to config
+			sleep(config.fcgi_cannot_create_request_delay);
 		}
 	}
 
@@ -832,44 +841,30 @@ bool App::InitializeRequestForFastCGI()
 }
 
 
-void App::SetRequestDependency()
+void App::SetRequestDependency(Request & request)
 {
-	cur.request->SetConfig(&config);
-	cur.request->SetTemplates(&templates);
-	cur.request->SetCompress(&compress);
-	cur.request->SetPlugin(&plugin);
-	cur.request->SetMounts(&system.mounts);
+	request.SetConfig(&config);
+	request.SetTemplates(&templates);
+	request.SetCompress(&compress);
+	request.SetPlugin(&plugin);
+	request.SetMounts(&system.mounts);
 
-	cur.request->session = cur.session;
-	cur.request->mount = cur.mount;
+	request.session = cur.session;
+	request.mount = cur.mount;
 
-	cur.request->set_connector(&model_connector);
-	cur.request->item.set_connector(&model_connector);
+	request.set_connector(&model_connector);
+	request.item.set_connector(&model_connector);
 }
 
 
-void App::InitializeNewRequest()
+void App::InitializeNewRequest(Request & request)
 {
-	SetRequestDependency();
-	cur.request->Clear(); // IMPROVE ME what about an 'id' in request? it should be unique?
-	InitializeRequestForFastCGI();
+	SetRequestDependency(request);
+	request.Clear();
+	InitializeRequestForFastCGI(request);
 }
 
 
-// use with lock/unlock
-void App::PrepareRequest()
-{
-	Winix::Lock lock(synchro);
-
-	if( system.req_tab.empty() )
-	{
-		system.req_tab.resize(1);
-	}
-
-	cur.request = &system.req_tab.back();
-	InitializeNewRequest();
-}
-
 
 void App::PutRequestToJob()
 {
@@ -903,12 +898,6 @@ void App::Start()
 	{
 		Winix::Lock lock(synchro);
 		was_stop_signal = synchro.was_stop_signal;
-	}
-
-	PrepareRequest();
-
-	{
-		Winix::Lock lock(synchro);
 		fcgi_request = &cur.request->fcgi_request;
 	}
 
@@ -960,7 +949,7 @@ void App::Start()
 				 */
 				system.req_tab.resize(system.req_tab.size() + 1);
 				cur.request = &system.req_tab.back();
-				InitializeNewRequest();
+				InitializeNewRequest(*cur.request); // cur.request->session, cur.request->mount, cur.request->id etc. are set when the request starts
 			}
 		}