Add session cookie handling for authentication

internal/service/auth/auth.go

@@ -1,10 +1,16 @@
 package auth
 
 import (
+	"time"
+
 	"github.com/eduardolat/pgbackweb/internal/config"
 	"github.com/eduardolat/pgbackweb/internal/database/dbgen"
 )
 
+const (
+	maxSessionAge = time.Hour * 12
+)
+
 type Service struct {
 	env   *config.Env
 	dbgen *dbgen.Queries

internal/service/auth/cookies.go

@@ -0,0 +1,23 @@
+package auth
+
+import (
+	"net/http"
+
+	"github.com/eduardolat/pgbackweb/internal/database/dbgen"
+	"github.com/labstack/echo/v4"
+)
+
+const (
+	sessionCookieName = "pbw_session"
+)
+
+func (s *Service) SetSessionCookie(c echo.Context, session dbgen.Session) {
+	cookie := http.Cookie{
+		Name:     sessionCookieName,
+		Value:    session.Token,
+		MaxAge:   int(maxSessionAge.Seconds()),
+		HttpOnly: true,
+		SameSite: http.SameSiteStrictMode,
+	}
+	c.SetCookie(&cookie)
+}

internal/service/auth/delete_old_sessions.go

@@ -7,8 +7,6 @@ import (
 	"github.com/eduardolat/pgbackweb/internal/logger"
 )
 
-const maxSessionAge = time.Hour * 12
-
 func (s *Service) DeleteOldSessions() {
 	ctx := context.Background()
 	dateThreshold := time.Now().Add(-maxSessionAge)

internal/view/web/auth/login.go

@@ -4,8 +4,11 @@ import (
 	"net/http"
 
 	lucide "github.com/eduardolat/gomponents-lucide"
+	"github.com/eduardolat/pgbackweb/internal/logger"
 	"github.com/eduardolat/pgbackweb/internal/util/echoutil"
+	"github.com/eduardolat/pgbackweb/internal/validate"
 	"github.com/eduardolat/pgbackweb/internal/view/web/component"
+	"github.com/eduardolat/pgbackweb/internal/view/web/htmx"
 	"github.com/eduardolat/pgbackweb/internal/view/web/layout"
 	"github.com/labstack/echo/v4"
 	"github.com/maragudk/gomponents"
@@ -21,6 +24,8 @@ func loginPage() gomponents.Node {
 		component.H1Text("Login"),
 
 		html.Form(
+			htmx.HxPost("/auth/login"),
+			htmx.HxDisabledELT("find button"),
 			html.Class("mt-4 space-y-2"),
 
 			component.InputControl(component.InputControlParams{
@@ -42,7 +47,8 @@ func loginPage() gomponents.Node {
 			}),
 
 			html.Div(
-				html.Class("pt-2 grid place-items-end"),
+				html.Class("pt-2 flex justify-end items-center space-x-2"),
+				component.HxLoadingMd(),
 				html.Button(
 					html.Class("btn btn-primary"),
 					html.Type("submit"),
@@ -58,3 +64,34 @@ func loginPage() gomponents.Node {
 		Body:  content,
 	})
 }
+
+func (h *handlers) loginHandler(c echo.Context) error {
+	ctx := c.Request().Context()
+
+	var formData struct {
+		Email    string `form:"email" validate:"required,email"`
+		Password string `form:"password" validate:"required,max=50"`
+	}
+	if err := c.Bind(&formData); err != nil {
+		return htmx.RespondToastError(c, err.Error())
+	}
+	if err := validate.Struct(&formData); err != nil {
+		return htmx.RespondToastError(c, err.Error())
+	}
+
+	session, err := h.servs.AuthService.Login(
+		ctx, formData.Email, formData.Password, c.RealIP(), c.Request().UserAgent(),
+	)
+	if err != nil {
+		logger.Error("login failed", logger.KV{
+			"email": formData.Email,
+			"ip":    c.RealIP(),
+			"ua":    c.Request().UserAgent(),
+			"err":   err,
+		})
+		return htmx.RespondToastError(c, "Login failed")
+	}
+
+	h.servs.AuthService.SetSessionCookie(c, session)
+	return htmx.RespondRedirect(c, "/dashboard")
+}

internal/view/web/auth/router.go

@@ -16,4 +16,5 @@ func MountRouter(parent *echo.Group, servs *service.Service) {
 	parent.POST("/create-first-user", h.createFirstUserHandler)
 
 	parent.GET("/login", h.loginPageHandler)
+	parent.POST("/login", h.loginHandler)
 }