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rcpp_framework/web_modules/users/user_controller.cpp

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#include "user_controller.h"
#include "web/html/form_validator.h"
#include "web/html/html_builder.h"
#include "web/http/cookie.h"
#include "web/http/http_session.h"
#include "web/http/request.h"
#include "web/http/session_manager.h"
#include "web/http/web_permission.h"
#include "database/database.h"
#include "database/database_manager.h"
#include "database/query_builder.h"
#include "database/query_result.h"
#include "database/table_builder.h"
#include "crypto/hash/sha256.h"
void UserController::handle_request_main(Request *request) {
if (_web_permission.is_valid()) {
if (_web_permission->activate(request)) {
return;
}
}
if (request->session.is_valid()) {
Ref<User> u = request->reference_data["user"];
if (u.is_valid()) {
handle_request(u, request);
return;
}
}
const String &segment = request->get_current_path_segment();
if (segment == "") {
handle_login_request_default(request);
return;
} else if (segment == "login") {
handle_login_request_default(request);
return;
} else if (segment == "register") {
handle_register_request_default(request);
return;
}
handle_login_request_default(request);
}
void UserController::handle_login_request_default(Request *request) {
LoginRequestData data;
if (request->get_method() == HTTP_METHOD_POST) {
// this is probbaly not needed
// it's ok for now as I need to test the validators more
Vector<String> errors;
_login_validator->validate(request, &errors);
for (int i = 0; i < errors.size(); ++i) {
data.error_str += errors[i] + "<br>";
}
// not needed end
data.uname_val = request->get_parameter("username");
data.pass_val = request->get_parameter("password");
Ref<User> user = db_get_user(data.uname_val);
if (user.is_valid()) {
if (!check_password(user, data.pass_val)) {
data.error_str += "Invalid username or password!";
} else {
Ref<HTTPSession> session = request->get_or_create_session();
session->add("user_id", user->id);
SessionManager::get_singleton()->save_session(session);
::Cookie c = ::Cookie("session_id", session->session_id);
c.path = "/";
request->add_cookie(c);
render_login_success(request);
return;
}
} else {
data.error_str += "Invalid username or password!";
}
}
render_login_request_default(request, &data);
}
void UserController::render_login_request_default(Request *request, LoginRequestData *data) {
HTMLBuilder b;
b.w("Login");
b.br();
{
if (data->error_str.size() != 0) {
b.div()->cls("error");
b.w(data->error_str);
b.cdiv();
}
}
b.div()->cls("login");
{
// todo href path helper
b.form()->method("POST")->href("/user/login");
{
b.csrf_token(request);
b.w("Username");
b.br();
b.input()->type("text")->name("username")->value(data->uname_val);
b.cinput();
b.br();
b.w("Password");
b.br();
b.input()->type("password")->name("password");
b.cinput();
b.br();
b.input()->type("submit")->value("Send");
b.cinput();
}
b.cform();
}
b.cdiv();
request->body += b.result;
request->compile_and_send_body();
}
void UserController::handle_register_request_default(Request *request) {
RegisterRequestData data;
if (request->get_method() == HTTP_METHOD_POST) {
Vector<String> errors;
_registration_validator->validate(request, &errors);
for (int i = 0; i < errors.size(); ++i) {
data.error_str += errors[i] + "<br>";
}
data.uname_val = request->get_parameter("username");
data.email_val = request->get_parameter("email");
data.pass_val = request->get_parameter("password");
data.pass_check_val = request->get_parameter("password_check");
// todo username length etc check
// todo pw length etc check
if (is_username_taken(data.uname_val)) {
data.error_str += "Username already taken!<br>";
}
if (is_email_taken(data.email_val)) {
data.error_str += "Email already in use!<br>";
}
if (data.pass_val != data.pass_check_val) {
data.error_str += "The passwords did not match!<br>";
}
if (data.error_str.size() == 0) {
Ref<User> user;
user = create_user();
user->name_user_input = data.uname_val;
user->email_user_input = data.email_val;
create_password(user, data.pass_val);
db_save_user(user);
render_register_success(request);
return;
}
}
render_register_request_default(request, &data);
}
void UserController::render_register_success(Request *request) {
HTMLBuilder b;
b.div()->cls("success");
{
b.w("Registration successful! You can now log in!");
b.br();
b.a()->href("/user/login");
b.w(">> Login <<");
b.ca();
}
b.cdiv();
request->body += b.result;
request->compile_and_send_body();
}
void UserController::render_register_request_default(Request *request, RegisterRequestData *data) {
HTMLBuilder b;
b.w("Registration");
b.br();
{
if (data->error_str.size() != 0) {
b.div()->cls("error");
b.w(data->error_str);
b.cdiv();
}
}
b.div()->cls("register");
{
// todo href path helper
b.form()->method("POST")->href("/user/register");
{
b.csrf_token(request);
b.w("Username");
b.br();
b.input()->type("text")->name("username")->value(data->uname_val);
b.cinput();
b.br();
b.w("Email");
b.br();
b.input()->type("email")->name("email")->value(data->email_val);
b.cinput();
b.br();
b.w("Password");
b.br();
b.input()->type("password")->name("password");
b.cinput();
b.br();
b.w("Password again");
b.br();
b.input()->type("password")->name("password_check");
b.cinput();
b.br();
b.input()->type("submit")->value("Register");
b.cinput();
}
b.cform();
}
b.cdiv();
request->body += b.result;
request->compile_and_send_body();
}
void UserController::render_already_logged_in_error(Request *request) {
request->body += "You are already logged in.";
request->compile_and_send_body();
}
void UserController::render_login_success(Request *request) {
request->body = "Login Success!<br>";
// request->compile_and_send_body();
request->send_redirect("/user/settings");
}
void UserController::handle_request(Ref<User> &user, Request *request) {
const String &segment = request->get_current_path_segment();
if (segment == "") {
handle_main_page_request(user, request);
} else if (segment == "settings") {
handle_settings_request(user, request);
} else if (segment == "password_reset") {
handle_password_reset_request(user, request);
} else if (segment == "logout") {
handle_logout_request(user, request);
} else if (segment == "delete") {
handle_delete_request(user, request);
} else if (segment == "login") {
render_already_logged_in_error(request);
} else if (segment == "register") {
render_already_logged_in_error(request);
} else {
request->send_error(404);
}
}
void UserController::handle_main_page_request(Ref<User> &user, Request *request) {
request->body += "handle_main_page_request";
request->compile_and_send_body();
}
void UserController::handle_settings_request(Ref<User> &user, Request *request) {
SettingsRequestData data;
if (request->get_method() == HTTP_METHOD_POST) {
data.uname_val = request->get_parameter("username");
data.email_val = request->get_parameter("email");
data.pass_val = request->get_parameter("password");
data.pass_check_val = request->get_parameter("password_check");
bool changed = false;
Vector<String> errors;
bool valid = _profile_validator->validate(request, &errors);
for (int i = 0; i < errors.size(); ++i) {
data.error_str += errors[i] + "<br>";
}
if (valid) {
if (data.uname_val == user->name_user_input) {
data.uname_val = "";
}
if (data.email_val == user->email_user_input) {
data.email_val = "";
}
if (data.uname_val != "") {
if (is_username_taken(data.uname_val)) {
data.error_str += "Username already taken!<br>";
} else {
// todo sanitize for html special chars!
user->name_user_input = data.uname_val;
changed = true;
data.uname_val = "";
}
}
if (data.email_val != "") {
if (is_email_taken(data.email_val)) {
data.error_str += "Email already in use!<br>";
} else {
// todo sanitize for html special chars!
// also send email
user->email_user_input = data.email_val;
changed = true;
data.email_val = "";
}
}
if (data.pass_val != "") {
if (data.pass_val != data.pass_check_val) {
data.error_str += "The passwords did not match!<br>";
} else {
create_password(user, data.pass_val);
changed = true;
}
}
if (changed) {
db_save_user(user);
}
}
}
render_settings_request(user, request, &data);
}
void UserController::render_settings_request(Ref<User> &user, Request *request, SettingsRequestData *data) {
HTMLBuilder b;
b.w("Settings");
b.br();
{
if (data->error_str.size() != 0) {
b.div()->cls("error");
b.w(data->error_str);
b.cdiv();
}
}
b.div()->cls("settings");
{
// todo href path helper
b.form()->method("POST")->href("/user/settings");
{
b.csrf_token(request);
b.w("Username");
b.br();
b.input()->type("text")->name("username")->placeholder(user->name_user_input)->value(data->uname_val);
b.cinput();
b.br();
b.w("Email");
b.br();
b.input()->type("email")->name("email")->placeholder(user->email_user_input)->value(data->email_val);
b.cinput();
b.br();
b.w("Password");
b.br();
b.input()->type("password")->placeholder("*******")->name("password");
b.cinput();
b.br();
b.w("Password again");
b.br();
b.input()->type("password")->placeholder("*******")->name("password_check");
b.cinput();
b.br();
b.input()->type("submit")->value("Save");
b.cinput();
}
b.cform();
}
b.cdiv();
request->body += b.result;
request->compile_and_send_body();
}
void UserController::handle_password_reset_request(Ref<User> &user, Request *request) {
request->body += "handle_password_reset_request";
request->compile_and_send_body();
}
void UserController::handle_logout_request(Ref<User> &user, Request *request) {
request->remove_cookie("session_id");
db_save_user(user);
SessionManager::get_singleton()->delete_session(request->session->session_id);
request->session = nullptr;
HTMLBuilder b;
b.w("Logout successful!");
request->body += b.result;
request->compile_and_send_body();
}
void UserController::handle_delete_request(Ref<User> &user, Request *request) {
request->body += "handle_delete_request";
request->compile_and_send_body();
}
void UserController::create_validators() {
if (!_login_validator) {
// Login
_login_validator = new FormValidator();
_login_validator->new_field("username", "Username")->need_to_exist()->need_to_be_alpha_numeric()->need_minimum_length(5)->need_maximum_length(20);
FormField *pw = _login_validator->new_field("password", "Password");
pw->need_to_exist();
pw->need_to_have_lowercase_character()->need_to_have_uppercase_character();
pw->need_minimum_length(5);
}
if (!_registration_validator) {
// Registration
_registration_validator = new FormValidator();
_registration_validator->new_field("username", "Username")->need_to_exist()->need_to_be_alpha_numeric()->need_minimum_length(5)->need_maximum_length(20);
_registration_validator->new_field("email", "Email")->need_to_exist()->need_to_be_email();
FormField *pw = _registration_validator->new_field("password", "Password");
pw->need_to_exist();
pw->need_to_have_lowercase_character()->need_to_have_uppercase_character();
pw->need_minimum_length(5);
_registration_validator->new_field("password_check", "Password check")->need_to_match("password");
_registration_validator->new_field("email", "Email")->need_to_exist()->need_to_be_email();
}
if (!_profile_validator) {
_profile_validator = new FormValidator();
_profile_validator->new_field("username", "Username")->ignore_if_not_exists()->need_to_be_alpha_numeric()->need_minimum_length(5)->need_maximum_length(20);
_profile_validator->new_field("email", "Email")->ignore_if_not_exists()->need_to_be_email();
FormField *pw = _profile_validator->new_field("password", "Password");
pw->ignore_if_not_exists();
pw->need_to_have_lowercase_character()->need_to_have_uppercase_character();
pw->need_minimum_length(5);
_profile_validator->new_field("password_check", "Password check")->ignore_if_other_field_not_exists("password")->need_to_match("password");
}
}
Ref<User> UserController::db_get_user(const int id) {
if (id == 0) {
return Ref<User>();
}
Ref<QueryBuilder> b = get_query_builder();
b->select("username, email, rank, pre_salt, post_salt, password_hash, banned, password_reset_token, locked");
b->from(_table_name);
b->where()->wp("id", id);
b->end_command();
Ref<QueryResult> r = b->run();
if (!r->next_row()) {
return Ref<User>();
}
Ref<User> user;
user = create_user();
user->id = id;
user->name_user_input = r->get_cell(0);
user->email_user_input = r->get_cell(1);
user->rank = r->get_cell_int(2);
user->pre_salt = r->get_cell(3);
user->post_salt = r->get_cell(4);
user->password_hash = r->get_cell(5);
user->banned = r->get_cell_bool(6);
user->password_reset_token = r->get_cell(7);
user->locked = r->get_cell_bool(8);
return user;
}
Ref<User> UserController::db_get_user(const String &user_name_input) {
if (user_name_input == "") {
return Ref<User>();
}
Ref<QueryBuilder> b = get_query_builder();
b->select("id, email, rank, pre_salt, post_salt, password_hash, banned, password_reset_token, locked");
b->from(_table_name);
b->where()->wp("username", user_name_input);
b->end_command();
Ref<QueryResult> r = b->run();
if (!r->next_row()) {
return Ref<User>();
}
Ref<User> user;
user = create_user();
user->id = r->get_cell_int(0);
user->name_user_input = user_name_input;
user->email_user_input = r->get_cell(1);
user->rank = r->get_cell_int(2);
user->pre_salt = r->get_cell(3);
user->post_salt = r->get_cell(4);
user->password_hash = r->get_cell(5);
user->banned = r->get_cell_bool(6);
user->password_reset_token = r->get_cell(7);
user->locked = r->get_cell_bool(8);
return user;
}
void UserController::db_save_user(Ref<User> &user) {
Ref<QueryBuilder> b = get_query_builder();
if (user->id == 0) {
b->insert(_table_name, "username, email, rank, pre_salt, post_salt, password_hash, banned, password_reset_token, locked");
b->values();
b->val(user->name_user_input);
b->val(user->email_user_input);
b->val(user->rank);
b->val(user->pre_salt);
b->val(user->post_salt);
b->val(user->password_hash);
b->val(user->banned);
b->val(user->password_reset_token);
b->val(user->locked);
b->cvalues();
b->end_command();
b->select_last_insert_id();
Ref<QueryResult> r = b->run();
user->id = r->get_last_insert_rowid();
} else {
b->update(_table_name);
b->set();
b->setp("username", user->name_user_input);
b->setp("email", user->email_user_input);
b->setp("rank", user->rank);
b->setp("pre_salt", user->pre_salt);
b->setp("post_salt", user->post_salt);
b->setp("password_hash", user->password_hash);
b->setp("banned", user->banned);
b->setp("password_reset_token", user->password_reset_token);
b->setp("locked", user->locked);
b->cset();
b->where()->wp("id", user->id);
// b->print();
b->run_query();
}
}
Vector<Ref<User> > UserController::db_get_all() {
Ref<QueryBuilder> b = get_query_builder();
b->select("id, username, email, rank, pre_salt, post_salt, password_hash, banned, password_reset_token, locked");
b->from(_table_name);
b->end_command();
// b->print();
Vector<Ref<User> > users;
Ref<QueryResult> r = b->run();
while (r->next_row()) {
Ref<User> user = create_user();
user->id = r->get_cell_int(0);
user->name_user_input = r->get_cell(1);
user->email_user_input = r->get_cell(2);
user->rank = r->get_cell_int(3);
user->pre_salt = r->get_cell(4);
user->post_salt = r->get_cell(5);
user->password_hash = r->get_cell(6);
user->banned = r->get_cell_bool(7);
user->password_reset_token = r->get_cell(8);
user->locked = r->get_cell_bool(9);
users.push_back(user);
}
return users;
}
Ref<User> UserController::create_user() {
Ref<User> u;
u.instance();
return u;
}
bool UserController::is_username_taken(const String &user_name_input) {
Ref<QueryBuilder> b = get_query_builder();
b->select("id")->from(_table_name)->where("username")->like(user_name_input)->end_command();
Ref<QueryResult> r = b->run();
return r->next_row();
}
bool UserController::is_email_taken(const String &email_input) {
Ref<QueryBuilder> b = get_query_builder();
b->select("id")->from(_table_name)->where("username")->like(email_input)->end_command();
Ref<QueryResult> r = b->run();
return r->next_row();
}
bool UserController::check_password(const Ref<User> &user, const String &p_password) {
return hash_password(user, p_password) == user->password_hash;
}
void UserController::create_password(Ref<User> &user, const String &p_password) {
if (!user.is_valid()) {
printf("Error UserController::create_password !user.is_valid()!\n");
return;
}
// todo improve a bit
user->pre_salt = hash_password(user, user->name_user_input + user->email_user_input);
user->post_salt = hash_password(user, user->email_user_input + user->name_user_input);
user->password_hash = hash_password(user, p_password);
}
String UserController::hash_password(const Ref<User> &user, const String &p_password) {
if (!user.is_valid()) {
printf("Error UserController::hash_password !user.is_valid()!\n");
return "";
}
Ref<SHA256> s = SHA256::get();
String p = user->pre_salt + p_password + user->post_salt;
String c = s->compute(p);
return c;
}
void UserController::create_table() {
Ref<TableBuilder> tb = get_table_builder();
tb->create_table(_table_name);
tb->integer("id")->auto_increment()->next_row();
tb->varchar("username", 60)->not_null()->next_row();
tb->varchar("email", 100)->not_null()->next_row();
tb->integer("rank")->not_null()->next_row();
tb->varchar("pre_salt", 100)->next_row();
tb->varchar("post_salt", 100)->next_row();
tb->varchar("password_hash", 100)->next_row();
tb->integer("banned")->next_row();
tb->varchar("password_reset_token", 100)->next_row();
tb->integer("locked")->next_row();
tb->primary_key("id");
tb->ccreate_table();
tb->run_query();
// tb->print();
}
void UserController::drop_table() {
Ref<TableBuilder> tb = get_table_builder();
tb->drop_table_if_exists(_table_name)->run_query();
}
void UserController::create_default_entries() {
Ref<User> user;
user = create_user();
user->rank = 3;
user->name_user_input = "admin";
user->email_user_input = "admin@admin.com";
create_password(user, "Password");
db_save_user(user);
user = create_user();
user->rank = 1;
user->name_user_input = "user";
user->email_user_input = "user@user.com";
create_password(user, "Password");
db_save_user(user);
}
UserController *UserController::get_singleton() {
return _self;
}
UserController::UserController() :
WebNode() {
if (_self) {
printf("UserController::UserController(): Error! self is not null!/n");
}
_self = this;
create_validators();
}
UserController::~UserController() {
if (_self == this) {
_self = nullptr;
}
}
UserController *UserController::_self = nullptr;
FormValidator *UserController::_login_validator = nullptr;
FormValidator *UserController::_registration_validator = nullptr;
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.is_valid()) {
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("user_id");
}
}
}
return false;
}
UserSessionSetupMiddleware::UserSessionSetupMiddleware() {
}
UserSessionSetupMiddleware::~UserSessionSetupMiddleware() {
}
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