clean: refactor auth & login page auth

api/auth.go

@@ -1,6 +1,7 @@
 package api
 
 import (
+	"GohCMS2/domain/user"
 	"GohCMS2/useCases"
 	"encoding/json"
 	"github.com/go-chi/chi/v5"
@@ -11,13 +12,13 @@ import (
 	"time"
 )
 
-type UserRegister struct {
+type RegisterCredentials struct {
 	Username string `json:"username" validate:"required,min=3,max=20"`
 	Password string `json:"password" validate:"required,min=8"`
 	Email    string `json:"email" validate:"required,email"`
 }
 
-type UserLogin struct {
+type LoginCredentials struct {
 	Username string `json:"username" validate:"required,min=3,max=20"`
 	Password string `json:"password" validate:"required,min=8"`
 }
@@ -60,31 +61,38 @@ func IsLoggedIn(r *http.Request) bool {
 	return token != nil && err == nil
 }
 
-func login(w http.ResponseWriter, r *http.Request) {
-	var user UserLogin
+func getUserFromCredentials(credentials LoginCredentials) (user.User, error) {
+	dbUser, err := Container.GetUserUseCase.GetUserByUsername(credentials.Username)
+	if err != nil {
+		return user.User{}, err
+	}
 
-	err := json.NewDecoder(r.Body).Decode(&user)
+	err = bcrypt.CompareHashAndPassword([]byte(dbUser.Password), []byte(credentials.Password))
+	if err != nil {
+		return user.User{}, err
+	}
+
+	return dbUser, nil
+}
+
+func login(w http.ResponseWriter, r *http.Request) {
+	var credentials LoginCredentials
+
+	err := json.NewDecoder(r.Body).Decode(&credentials)
 	if err != nil {
 		http.Error(w, bodyErrorMessage, http.StatusBadRequest)
 		return
 	}
 
-	err = validate.Struct(user)
+	err = validate.Struct(credentials)
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusBadRequest)
 		return
 	}
 
-	dbUser, err := Container.GetUserUseCase.GetUserByUsername(user.Username)
+	dbUser, err := getUserFromCredentials(credentials)
 	if err != nil {
 		http.Error(w, logsErrorMessage, http.StatusForbidden)
-		return
-	}
-
-	err = bcrypt.CompareHashAndPassword([]byte(dbUser.Password), []byte(user.Password))
-	if err != nil {
-		http.Error(w, logsErrorMessage, http.StatusForbidden)
-		return
 	}
 
 	_ = SetJwtCookie(&w, dbUser.ID)
@@ -99,23 +107,23 @@ func register(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	var user UserRegister
-	err := json.NewDecoder(r.Body).Decode(&user)
+	var credentials RegisterCredentials
+	err := json.NewDecoder(r.Body).Decode(&credentials)
 	if err != nil {
 		http.Error(w, bodyErrorMessage, http.StatusBadRequest)
 		return
 	}
 
-	err = validate.Struct(user)
+	err = validate.Struct(credentials)
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusBadRequest)
 		return
 	}
 
 	createdUser, err := Container.CreateUserUseCase.CreateUser(useCases.CreateUserCommand{
-		Username: user.Username,
-		Password: user.Password,
-		Email:    user.Email,
+		Username: credentials.Username,
+		Password: credentials.Password,
+		Email:    credentials.Email,
 	})
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)

api/pageLogin.go

@@ -1,10 +1,7 @@
 package api
 
 import (
-	"bytes"
-	"encoding/json"
 	"net/http"
-	"os"
 )
 
 const LoginRoute = "/login"
@@ -48,10 +45,11 @@ func GetLoginPageHandler(loginPage *LoginPage) http.HandlerFunc {
 func PostLoginPage(w http.ResponseWriter, r *http.Request) {
 	_ = r.ParseForm()
 
-	credentials, err := json.Marshal(&UserLogin{
+	credentials := LoginCredentials{
 		Username: r.FormValue("username"),
 		Password: r.FormValue("password"),
-	})
+	}
+	err := validate.Struct(credentials)
 	if err != nil {
 		r.Method = http.MethodGet
 		GetLoginPageHandler(&LoginPage{
@@ -61,12 +59,8 @@ func PostLoginPage(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	response, err := http.Post(
-		"http://localhost:"+os.Getenv("PORT")+"/v1/auth/login",
-		"application/json",
-		bytes.NewBuffer(credentials))
-
-	if err != nil || response.StatusCode != http.StatusOK {
+	dbUser, err := getUserFromCredentials(credentials)
+	if err != nil {
 		r.Method = http.MethodGet
 		GetLoginPageHandler(&LoginPage{
 			PageError: NewPageError("Invalid username or password."),
@@ -75,7 +69,7 @@ func PostLoginPage(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	w.Header().Set("Set-Cookie", response.Header.Get("Set-Cookie"))
+	_ = SetJwtCookie(&w, dbUser.ID)
 
 	http.Redirect(w, r, "/home", http.StatusSeeOther)
 }

api/pageRegister.go

@@ -45,7 +45,7 @@ func GetRegisterPageHandler(registerPage *RegisterPage) http.HandlerFunc {
 func PostRegisterPage(w http.ResponseWriter, r *http.Request) {
 	_ = r.ParseForm()
 
-	credentials, err := json.Marshal(&UserRegister{
+	credentials, err := json.Marshal(&RegisterCredentials{
 		Username: r.FormValue("username"),
 		Password: r.FormValue("password"),
 		Email:    r.FormValue("email"),