Add some functionality

new handler for Login

add errors

src/application/application.cpp

@@ -43,11 +43,23 @@ int Application::run() const {
 
   UserRepository      user_repository(db);
   PasswordHasher      password_hasher;
-  AuthService    auth_service(user_repository, password_hasher);
+  SessionRepository   session(db);
+  SessionTokenService token_service;
+
+  AuthService auth_service(user_repository, session, password_hasher, token_service,
+                           settings_.session_ttl);
 
   HealthController health_controller;
   AuthController   auth_controller(auth_service);
 
+  drogon::app().registerHandler(
+      "/login",
+      [&auth_controller](const drogon::HttpRequestPtr                          &req,
+                         std::function<void(const drogon::HttpResponsePtr &)> &&callback) {
+        auth_controller.login(req, std::move(callback));
+      },
+      { drogon::Post });
+
   drogon::app().registerHandler(
       "/register",
       [&auth_controller](const drogon::HttpRequestPtr                          &req,

src/http/controllers/auth_controller.cpp

@@ -1,13 +1,80 @@
 #include "http/controllers/auth_controller.hpp"
 
+#include "service/auth_errors.hpp"
 #include "service/auto_service.hpp"
 
 #include <drogon/drogon.h>
 #include <json/json.h>
 
 AuthController::AuthController(AuthService &auth_service)
-    : authService_(auth_service) {}
+    : auto_servise_(auth_service) {}
 
+void AuthController::login(const drogon::HttpRequestPtr                          &req,
+                           std::function<void(const drogon::HttpResponsePtr &)> &&callback) const {
+  const auto json = req->getJsonObject();
+  if(!isValidAuthJson(json)) {
+    Json::Value error;
+    error["error"]["code"]    = "invalid_request";
+    error["error"]["message"] = "Expected JSON body with email and password";
+
+    auto responce = drogon::HttpResponse::newHttpJsonResponse(error);
+    responce->setStatusCode(drogon::k400BadRequest);
+    callback(responce);
+    return;
+  }
+  try {
+    const auto result = auto_servise_.login(LoginCommand{
+        .email    = (*json)["email"].asString(),
+        .password = (*json)["password"].asString(),
+    });
+
+    Json::Value body;
+    body["message"] = "ok";
+
+    auto response = drogon::HttpResponse::newHttpJsonResponse(body);
+    response->setStatusCode(drogon::k200OK);
+
+    drogon::Cookie cookie("sid", result.session_token);
+    cookie.setHttpOnly(true);
+    cookie.setPath("/");
+    cookie.setSameSite(drogon::Cookie::SameSite::kLax);
+
+    response->addCookie(cookie);
+    callback(response);
+  } catch(const InvalidCredentialsError &ex) {
+    Json::Value error;
+    error["error"]["code"]    = "invalid_credentials";
+    error["error"]["message"] = ex.what();
+
+    auto response = drogon::HttpResponse::newHttpJsonResponse(error);
+    response->setStatusCode(drogon::k401Unauthorized);
+    callback(response);
+  } catch(const UnauthorizedError &ex) {
+    Json::Value error;
+    error["error"]["code"]    = "unauthorized";
+    error["error"]["message"] = ex.what();
+
+    auto response = drogon::HttpResponse::newHttpJsonResponse(error);
+    response->setStatusCode(drogon::k403Forbidden);
+    callback(response);
+  } catch(const ValidationError &ex) {
+    Json::Value error;
+    error["error"]["code"]    = "validation_error";
+    error["error"]["message"] = ex.what();
+
+    auto response = drogon::HttpResponse::newHttpJsonResponse(error);
+    response->setStatusCode(drogon::k400BadRequest);
+    callback(response);
+  } catch(const std::exception &ex) {
+    Json::Value error;
+    error["error"]["code"]    = "internal_error";
+    error["error"]["message"] = "Internal server error";
+
+    auto response = drogon::HttpResponse::newHttpJsonResponse(error);
+    response->setStatusCode(drogon::k500InternalServerError);
+    callback(response);
+  }
+}
 void AuthController::register_user(
     const drogon::HttpRequestPtr                          &req,
     std::function<void(const drogon::HttpResponsePtr &)> &&callback) const {
@@ -24,7 +91,7 @@ void AuthController::register_user(
   }
 
   try {
-    const auto result = authService_.register_user(RegisterCommand{
+    const auto result = auto_servise_.register_user(RegisterCommand{
         .email    = (*json)["email"].asString(),
         .password = (*json)["password"].asString(),
     });
@@ -37,29 +104,23 @@ void AuthController::register_user(
     responce->setStatusCode(drogon::k201Created);
 
     callback(responce);
-  } catch(const std::exception &ex) {
+  } catch(const EmailAlreadyExistsError &ex) {
     Json::Value error;
     error["error"]["message"] = ex.what();
-
-    const std::string message = ex.what();
-
-    if(message == "Email already exists") {
     error["error"]["code"]    = "email_already_exists";
 
     auto response = drogon::HttpResponse::newHttpJsonResponse(error);
     response->setStatusCode(drogon::k409Conflict);
-      callback(response);
+  } catch(const ValidationError &ex) {
-      return;
+    Json::Value error;
-    }
+    error["error"]["message"] = ex.what();
-
-    if(message == "Invalid email" || message == "Invalid password") {
     error["error"]["code"]    = "validation_error";
 
     auto response = drogon::HttpResponse::newHttpJsonResponse(error);
     callback(response);
-      return;
+  } catch(const std::exception &ex) {
-    }
+    Json::Value error;
-
+    error["error"]["message"] = ex.what();
     error["error"]["code"]    = "internal_error";
 
     auto response = drogon::HttpResponse::newHttpJsonResponse(error);

src/http/controllers/auth_controller.hpp

@@ -12,9 +12,13 @@ public:
   void register_user(const drogon::HttpRequestPtr                          &req,
                      std::function<void(const drogon::HttpResponsePtr &)> &&callback) const;
 
-private:
+  void login(const drogon::HttpRequestPtr                          &req,
-  bool isValidAuthJson(const std::shared_ptr<Json::Value> &req) const;
+             std::function<void(const drogon::HttpResponsePtr &)> &&callback) const;
 
 private:
-  AuthService &authService_;
+  bool isValidAuthJson(const std::shared_ptr<Json::Value> &req) const;
+  bool isValidLoginJson(const std::shared_ptr<Json::Value> &req) const;
+
+private:
+  AuthService &auto_servise_;
 };

src/service/auth_errors.hpp

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <stdexcept>
+
+class ValidationError: public std::runtime_error {
+public:
+  using std::runtime_error::runtime_error;
+};
+
+class EmailAlreadyExistsError: public std::runtime_error {
+public:
+  using std::runtime_error::runtime_error;
+};
+
+class InvalidCredentialsError: public std::runtime_error {
+public:
+  using std::runtime_error::runtime_error;
+};
+
+class UnauthorizedError: public std::runtime_error {
+public:
+  using std::runtime_error::runtime_error;
+};

src/service/auth_service.cpp

@@ -1,31 +1,79 @@
+#include "auth_errors.hpp"
+#include "repo/session_repository.hpp"
 #include "repo/user_repository.hpp"
 #include "security/password_hasher.hpp"
+#include "security/session_token_service.hpp"
 #include "util/time_utils.hpp"
 #include "util/validation.hpp"
 
 #include <service/auto_service.hpp>
 #include <stdexcept>
 
-AuthService::AuthService(UserRepository &users, PasswordHasher &password_hasher)
+AuthService::AuthService(UserRepository &users, SessionRepository &session,
+                         PasswordHasher &password_hasher, SessionTokenService &token_service,
+                         std::chrono::seconds session_ttl)
     : users_(users)
-    , passwordHasher_(password_hasher) {}
+    , sessions_(session)
-
+    , password_hasher_(password_hasher)
-RegisterResult AuthService::register_user(const RegisterCommand &command) const {
+    , token_service_(token_service)
-  const auto email = normalize_email(command.email);
+    , session_ttl_(session_ttl) {}
 
+// LoginResult AuthService::login(const LoginCommand &loginCommand) const { const auto email }
+void AuthService::validateData(std::string_view email, std::string_view password) const {
   if(!is_valid_email(email)) {
-    throw std::runtime_error("Invalid email");
+    throw ValidationError{ "Invalid Email" };
   }
 
-  if(!is_valid_password(command.password)) {
+  if(!is_valid_password(password)) {
-    throw std::runtime_error("Invalid password");
+    throw ValidationError("Invalid password");
   }
 
   if(users_.find_by_email(email).has_value()) {
-    throw std::runtime_error("Email already exists");
+    throw EmailAlreadyExistsError("Email already exists");
+  }
+}
+LoginResult AuthService::login(const LoginCommand &command) const {
+  const auto email = normalize_email(command.email);
+  // validateData(email, command.password);
+  if(!is_valid_email(email) || command.password.empty()) {
+    throw ValidationError{ "Invalid login request" };
   }
 
-  const auto password_hash = passwordHasher_.hash(command.password);
+  const auto user = users_.find_by_email(email);
+  if(!user.has_value()) {
+    throw InvalidCredentialsError("Invalid email or password");
+  }
+
+  if(!user->is_active) {
+    throw UnauthorizedError("User is disabled");
+  }
+
+  try {
+    if(!password_hasher_.verify(command.password, user->password_hash)) {
+      throw InvalidCredentialsError{ "Invalid email or password" };
+    }
+  } catch(...) {
+    throw InvalidCredentialsError{ "Invalid email or password" };
+  }
+
+  const auto token_pair = token_service_.generate();
+
+  const auto created_at = now_utc_iso8601();
+  const auto expires_at = expires_at_from_now(session_ttl_);
+
+  sessions_.create(user->id, token_pair.token_hash, created_at, expires_at);
+
+  return LoginResult{
+    .session_token = token_pair.raw_token,
+  };
+}
+
+RegisterResult AuthService::register_user(const RegisterCommand &command) const {
+  const auto email = normalize_email(command.email);
+  validateData(email, command.password);
+
+  const auto password_hash = password_hasher_.hash(command.password);
+
   const auto now = now_utc_iso8601();
 
   const auto user = users_.create(email, password_hash, now, now);

src/service/auto_service.hpp

@@ -1,9 +1,21 @@
 #pragma once
+#include <chrono>
 #include <cstdint>
 #include <string>
 
 class UserRepository;
 class PasswordHasher;
+class SessionRepository;
+class SessionTokenService;
+
+struct LoginCommand {
+  std::string email;
+  std::string password;
+};
+
+struct LoginResult {
+  std::string session_token;
+};
 
 struct RegisterCommand {
   std::string email;
@@ -17,11 +29,19 @@ struct RegisterResult {
 
 class AuthService {
 public:
-  AuthService(UserRepository &users, PasswordHasher &password_hasher);
+  AuthService(UserRepository &users, SessionRepository &session, PasswordHasher &password_hasher,
+              SessionTokenService &token_service, std::chrono::seconds session_ttl);
 
   RegisterResult register_user(const RegisterCommand &command) const;
+  LoginResult    login(const LoginCommand &loginCommand) const;
+
+private:
+  void validateData(std::string_view email, std::string_view password) const;
 
 private:
   UserRepository      &users_;
-  PasswordHasher &passwordHasher_;
+  SessionRepository   &sessions_;
+  PasswordHasher      &password_hasher_;
+  SessionTokenService &token_service_;
+  std::chrono::seconds session_ttl_;
 };