resend activation token

cmd/api/router.go

@@ -55,6 +55,8 @@ func (app *application) registerRoutes() {
 	app.echo.GET("/users", app.listUsersHandler, app.authenticate, app.requireRole("admin"))
 	app.echo.GET("/users/:id", app.getUserHandler, app.authenticate)
 	app.echo.GET("/users/activate", app.activateUserHandler)
+	app.echo.GET("/users/resend-activation", app.getResendActivationLinkHandler)
+	app.echo.POST("/users/resend-activation", app.postResendActivationLinkHandler)
 	app.echo.GET("/signup", app.signupHandler)
 	app.echo.POST("/signup", app.createUserHandler)
 	app.echo.GET("/login", app.loginHandler)

cmd/api/user.go

@@ -223,6 +223,45 @@ func (app *application) activateUserHandler(c echo.Context) error {
 	return c.Render(http.StatusOK, "home.tmpl.html", data)
 }
 
+// getResendActivationLinkHandler handles the display of the resend activation link form.
+func (app *application) getResendActivationLinkHandler(c echo.Context) error {
+	return c.Render(http.StatusOK, "resend_activation_link.tmpl.html", app.newTemplateData(c))
+}
+
+// postResendActivationLinkHandler handles the resending of an activation link.
+func (app *application) postResendActivationLinkHandler(c echo.Context) error {
+	email := c.FormValue("email")
+	user, err := app.models.Users.GetByEmail(email)
+	if err != nil {
+		app.sessionManager.Put(c.Request().Context(), "flash_error", "No user exists with this email address.")
+		data := app.newTemplateData(c)
+		return c.Render(http.StatusBadRequest, "home.tmpl.html", data)
+	}
+
+	token, err := app.models.Tokens.New(user.ID, 3*24*time.Hour, model.ScopeActivation)
+	if err != nil {
+		app.sessionManager.Put(c.Request().Context(), "flash_error", "Internal Server Error. Please try again later.")
+		data := app.newTemplateData(c)
+		return c.Render(http.StatusBadRequest, "home.tmpl.html", data)
+	}
+
+	go func() {
+		data := map[string]any{
+			"activationToken": token.Plaintext,
+			"userID":          user.ID,
+		}
+
+		err = app.mailer.Send(user.Email, "welcome.tmpl.html", data)
+		if err != nil {
+			log.Error(err)
+		}
+	}()
+
+	app.sessionManager.Put(c.Request().Context(), "flash", "The activation link has been resent. Please check your mailbox.")
+	data := app.newTemplateData(c)
+	return c.Render(http.StatusOK, "home.tmpl.html", data)
+}
+
 func (app *application) listUsersHandler(c echo.Context) error {
 	users, err := app.models.Users.List()
 	if err != nil {

internal/model/user.go

@@ -118,6 +118,16 @@ func (u *UserModel) GetByID(id uuid.UUID) (*User, error) {
 	return user, nil
 }
 
+// GetByEmail returns a user based on the email address.
+func (u *UserModel) GetByEmail(email string) (*User, error) {
+	user := new(User)
+	result := u.DB.Where("email = ?", email).First(&user)
+	if result.Error != nil {
+		return nil, result.Error
+	}
+	return user, nil
+}
+
 func (u *UserModel) GetRole(c echo.Context) (string, error) {
 	user := c.Get("user").(*User)
 	return user.Role, nil

ui/html/pages/login.tmpl.html

@@ -16,17 +16,21 @@ <h2 class="text-2xl font-bold text-gray-900">Login</h2>
         <input type="password" name="password" id="password" placeholder="Password"
                class="px-4 py-3 rounded-lg shadow-lg focus:outline-none focus:shadow-outline"/>
     </div>
-    <!-- remember me button -->
+    <!-- remember me button
     <div class="flex items-center mt-4">
         <input type="checkbox" name="remember" id="remember" class="mr-2">
         <label for="remember" class="text-gray-600">Remember Me</label>
     </div>
-    <div class="mt-6">
+    -->
+    <div>
         <button type="submit"
                 class="px-5 py-3 mt-8 font-medium text-indigo-600 bg-white rounded-md shadow-lg hover:bg-indigo-50">
             Login
         </button>
     </div>
+    <div class="flex items-center justify-between mt-4">
+        <a href="/users/resend-activation" class="text-xs text-gray-500 hover:underline">Resend Activation Token</a>
+    </div>
 </form>
 {{template "twoGridFoot" .}}
 {{end}}

ui/html/pages/resend_activation_link.tmpl.html

@@ -0,0 +1,22 @@
+{{define "title"}}Resend Activation Token{{end}}
+
+{{define "main"}}
+{{template "twoGridHead" .}}
+<h2 class="text-2xl font-bold text-gray-900">Resend Activation Token</h2>
+<p class="mt-4 text-gray-600">Please enter your email address below to resend your activation token.</p>
+<form class="mt-8" action="/users/resend-activation" method="post">
+    <input type="hidden" name="csrf_token" value="{{.CSRFToken}}">
+    <div class="flex flex-col">
+        <label for="email" class="hidden">Email</label>
+        <input type="email" name="email" id="email" placeholder="Email"
+               class="px-4 py-3 rounded-lg shadow-lg focus:outline-none focus:shadow-outline"/>
+    </div>
+    <div class="mt-6">
+        <button type="submit"
+                class="px-5 py-3 mt-8 font-medium text-indigo-600 bg-white rounded-md shadow-lg hover:bg-indigo-50">
+            Resend Activation Token
+        </button>
+    </div>
+</form>
+{{template "twoGridFoot" .}}
+{{end}}

ui/static/css/tailwind.css

@@ -798,6 +798,11 @@ video {
   line-height: 1.75rem;
 }
 
+.text-xs {
+  font-size: 0.75rem;
+  line-height: 1rem;
+}
+
 .font-bold {
   font-weight: 700;
 }
@@ -815,6 +820,11 @@ video {
   color: rgb(156 163 175 / var(--tw-text-opacity));
 }
 
+.text-gray-500 {
+  --tw-text-opacity: 1;
+  color: rgb(107 114 128 / var(--tw-text-opacity));
+}
+
 .text-gray-600 {
   --tw-text-opacity: 1;
   color: rgb(75 85 99 / var(--tw-text-opacity));