Introduce HandlerUserSettings to change user settings, e. g. pw changes

handlers/handlerfactory.cpp

@@ -32,6 +32,7 @@ SOFTWARE.
 #include "handlercategory.h"
 #include "handlerhistory.h"
 #include "handlerpagedelete.h"
+#include "handlerusersettings.h"
 
 std::unique_ptr<Handler> HandlerFactory::createHandler(const std::string &action, Session &userSession)
 {
@@ -75,6 +76,10 @@ std::unique_ptr<Handler> HandlerFactory::createHandler(const std::string &action
 	{
 		return produce<HandlerHistory>(userSession);
 	}
+	if(action == "usersettings")
+	{
+		return produce<HandlerUserSettings>(userSession);
+	}
 
 	return produce<HandlerInvalidAction>(userSession);
 }

handlers/handlerusersettings.cpp

@@ -0,0 +1,71 @@
+#include "handlerusersettings.h"
+#include "../authenticator.h"
+#include "../random.h"
+
+Response HandlerUserSettings::handleRequest(const Request &r)
+{
+	if(r.getRequestMethod() == "POST")
+	{
+		if(r.post("do") == "submit")
+		{
+			std::string oldpassword = r.post("oldpassword");
+			std::string newpassword = r.post("newpassword");
+			std::string newpasswordconfirm = r.post("newpasswordconfirm");
+
+			if(newpassword != newpasswordconfirm)
+			{
+				//TODO: is not nice, users has to hit the back button...
+				return this->errorResponse("Passwords don't match", "The entered new passwords don't match");
+			}
+			auto userDao = this->database->createUserDao();
+			Authenticator authenticator(*userDao);
+
+			std::variant<User, AuthenticationError> authresult = authenticator.authenticate(this->userSession->user.login, oldpassword);
+			if(std::holds_alternative<AuthenticationError>(authresult))
+			{
+				return this->errorResponse("Invalid current password", "The old password you entered is invalid");
+			}
+			Random r;
+			std::vector<char> salt = r.getRandom(23);
+			User user = std::get<User>(authresult);
+			user.salt = salt;
+			user.password = authenticator.hash(newpassword, user.salt);
+			if(user.password.empty())
+			{
+				Logger::error() << "Authenticator pbkdf5 returned emptys hash";
+				return this->errorResponse("Error", "An error occured while trying to store new password");
+			}
+			try
+			{
+				userDao->save(user);
+			}
+			catch(const DatabaseException &e)
+			{
+				Logger::debug() << "Error saving user: " << e.what();
+				return errorResponse("Error", "A database error occured while trying to save user with new settings");
+			}
+
+			return Response::redirectTemporarily(this->urlProvider->userSettings());
+		}
+	}
+
+	TemplatePage &userSettingsPage = this->templ->getPage("usersettings");
+	setGeneralVars(userSettingsPage);
+	userSettingsPage.setVar("usersettingsurl", urlProvider->userSettings());
+	userSettingsPage.setVar("title", createPageTitle("User settings - " + this->userSession->user.login));
+	Response result;
+	result.setStatus(200);
+	result.setBody(userSettingsPage.render());
+
+	return result;
+}
+
+bool HandlerUserSettings::canAccess(const Permissions &perms)
+{
+	return this->userSession->loggedIn;
+}
+
+std::string HandlerUserSettings::accessErrorMessage()
+{
+	return "Only logged-in users can change their settings";
+}

handlers/handlerusersettings.h

@@ -0,0 +1,13 @@
+#ifndef HANDLERUSERSETTINGS_H
+#define HANDLERUSERSETTINGS_H
+#include "handler.h"
+class HandlerUserSettings : public Handler
+{
+  public:
+	using Handler::Handler;
+	Response handleRequest(const Request &r);
+	bool canAccess(const Permissions &perms);
+	std::string accessErrorMessage();
+};
+
+#endif // HANDLERUSERSETTINGS_H