chore(auth): #331 add tests for sign in

handler/auth.go

@@ -31,8 +31,8 @@ func NewAuth(service service.Auth, render *Render) Auth {
 }
 
 func (handler AuthImpl) Handle(router *http.ServeMux) {
-	router.Handle("/auth/signin", handler.handleSignInPage())
-	router.Handle("/api/auth/signin", handler.handleSignIn())
+	router.Handle("GET /auth/signin", handler.handleSignInPage())
+	router.Handle("POST /api/auth/signin", handler.handleSignIn())
 
 	router.Handle("/auth/signup", handler.handleSignUpPage())
 	router.Handle("/auth/verify", handler.handleSignUpVerifyPage())

main_test.go

@@ -113,6 +113,138 @@ func TestIntegrationAuth(t *testing.T) {
 	t.Parallel()
 
 	t.Run("SignIn", func(t *testing.T) {
+		t.Run(`should redirect to "/" if user is already signed in`, func(t *testing.T) {
+			t.Parallel()
+
+			db, basePath, ctx := setupIntegrationTest(t)
+
+			userId := uuid.New()
+			sessionId := "session-id"
+			pass := service.GetHashPassword("password", []byte("salt"))
+
+			_, err := db.Exec(`
+			INSERT INTO user (user_id, email, email_verified, is_admin, password, salt, created_at) 
+			VALUES (?, "mail@mail.de", TRUE, FALSE, ?, ?, datetime())`, userId, pass, []byte("salt"))
+			assert.Nil(t, err)
+			_, err = db.Exec(`
+			INSERT INTO session (session_id, user_id, created_at, expires_at)
+			VALUES (?, ?, datetime(), datetime("now", "+1 day"))`, sessionId, userId)
+			assert.Nil(t, err)
+
+			req, err := http.NewRequestWithContext(ctx, "GET", basePath+"/auth/signin", nil)
+			assert.Nil(t, err)
+			req.Header.Set("Cookie", "id="+sessionId)
+			resp, err := httpClient.Do(req)
+			assert.Nil(t, err)
+			assert.Equal(t, http.StatusSeeOther, resp.StatusCode)
+			assert.Equal(t, "/", resp.Header.Get("Location"))
+		})
+		t.Run(`should fail without valid csrf token`, func(t *testing.T) {
+			t.Parallel()
+
+			db, basePath, ctx := setupIntegrationTest(t)
+
+			userId := uuid.New()
+			pass := service.GetHashPassword("password", []byte("salt"))
+
+			_, err := db.Exec(`
+			INSERT INTO user (user_id, email, email_verified, is_admin, password, salt, created_at) 
+			VALUES (?, "mail@mail.de", TRUE, FALSE, ?, ?, datetime())`, userId, pass, []byte("salt"))
+			assert.Nil(t, err)
+
+			formData := url.Values{
+				"email":      {"mail@mail.de"},
+				"password":   {"password"},
+				"csrf-token": {"invalid-csrf-token"},
+			}
+
+			req, err := http.NewRequestWithContext(ctx, "POST", basePath+"/api/auth/signin", strings.NewReader(formData.Encode()))
+			assert.Nil(t, err)
+			req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+			resp, err := httpClient.Do(req)
+			assert.Nil(t, err)
+			assert.Equal(t, http.StatusBadRequest, resp.StatusCode)
+		})
+		t.Run(`should fail with invalid username`, func(t *testing.T) {
+			t.Parallel()
+
+			db, basePath, ctx := setupIntegrationTest(t)
+
+			userId := uuid.New()
+			pass := service.GetHashPassword("password", []byte("salt"))
+
+			_, err := db.Exec(`
+				INSERT INTO user (user_id, email, email_verified, is_admin, password, salt, created_at) 
+				VALUES (?, "mail@mail.de", TRUE, FALSE, ?, ?, datetime())`, userId, pass, []byte("salt"))
+			assert.Nil(t, err)
+
+			req, err := http.NewRequestWithContext(ctx, "GET", basePath+"/auth/signin", nil)
+			assert.Nil(t, err)
+			resp, err := httpClient.Do(req)
+			assert.Nil(t, err)
+
+			html, err := html.Parse(resp.Body)
+			assert.Nil(t, err)
+			csrfToken := findCsrfToken(html)
+			assert.NotEqual(t, "", csrfToken)
+			session := findCookie(resp, "id")
+
+			formData := url.Values{
+				"email":      {"invalid@mail.de"},
+				"password":   {"password"},
+				"csrf-token": {csrfToken},
+			}
+
+			req, err = http.NewRequestWithContext(ctx, "POST", basePath+"/api/auth/signin", strings.NewReader(formData.Encode()))
+			assert.Nil(t, err)
+			req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+			req.Header.Set("Cookie", "id="+session.Value)
+			req.Header.Set("HX-Request", "true")
+			resp, err = httpClient.Do(req)
+			assert.Nil(t, err)
+			assert.Equal(t, http.StatusUnauthorized, resp.StatusCode)
+			assert.Contains(t, resp.Header.Get("HX-Trigger"), "email or password")
+		})
+		t.Run(`should fail with invalid password`, func(t *testing.T) {
+			t.Parallel()
+
+			db, basePath, ctx := setupIntegrationTest(t)
+
+			userId := uuid.New()
+			pass := service.GetHashPassword("password", []byte("salt"))
+
+			_, err := db.Exec(`
+				INSERT INTO user (user_id, email, email_verified, is_admin, password, salt, created_at) 
+				VALUES (?, "mail@mail.de", TRUE, FALSE, ?, ?, datetime())`, userId, pass, []byte("salt"))
+			assert.Nil(t, err)
+
+			req, err := http.NewRequestWithContext(ctx, "GET", basePath+"/auth/signin", nil)
+			assert.Nil(t, err)
+			resp, err := httpClient.Do(req)
+			assert.Nil(t, err)
+
+			html, err := html.Parse(resp.Body)
+			assert.Nil(t, err)
+			csrfToken := findCsrfToken(html)
+			assert.NotEqual(t, "", csrfToken)
+			session := findCookie(resp, "id")
+
+			formData := url.Values{
+				"email":      {"mail@mail.de"},
+				"password":   {"invalid-password"},
+				"csrf-token": {csrfToken},
+			}
+
+			req, err = http.NewRequestWithContext(ctx, "POST", basePath+"/api/auth/signin", strings.NewReader(formData.Encode()))
+			assert.Nil(t, err)
+			req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+			req.Header.Set("Cookie", "id="+session.Value)
+			req.Header.Set("HX-Request", "true")
+			resp, err = httpClient.Do(req)
+			assert.Nil(t, err)
+			assert.Equal(t, http.StatusUnauthorized, resp.StatusCode)
+			assert.Contains(t, resp.Header.Get("HX-Trigger"), "email or password")
+		})
 		t.Run("should return secure cookie with NEW session-id", func(t *testing.T) {
 			t.Parallel()
 

utils/http.go

@@ -1,11 +1,11 @@
 package utils
 
 import (
-	"me-fit/log"
-
 	"fmt"
 	"net/http"
 	"time"
+
+	"me-fit/log"
 )
 
 func TriggerToast(w http.ResponseWriter, r *http.Request, class string, message string, statusCode int) {