initial public commit

forms/user_verification_request.go

@@ -0,0 +1,74 @@
+package forms
+
+import (
+	"errors"
+	"time"
+
+	validation "github.com/go-ozzo/ozzo-validation/v4"
+	"github.com/go-ozzo/ozzo-validation/v4/is"
+	"github.com/pocketbase/pocketbase/core"
+	"github.com/pocketbase/pocketbase/mails"
+	"github.com/pocketbase/pocketbase/tools/types"
+)
+
+// UserVerificationRequest defines a user email verification request form.
+type UserVerificationRequest struct {
+	app             core.App
+	resendThreshold float64
+
+	Email string `form:"email" json:"email"`
+}
+
+// NewUserVerificationRequest creates a new user email verification request form.
+func NewUserVerificationRequest(app core.App) *UserVerificationRequest {
+	return &UserVerificationRequest{
+		app:             app,
+		resendThreshold: 120, // 2 min
+	}
+}
+
+// Validate makes the form validatable by implementing [validation.Validatable] interface.
+//
+// // This method doesn't verify that user with `form.Email` exists (this is done on Submit).
+func (form *UserVerificationRequest) Validate() error {
+	return validation.ValidateStruct(form,
+		validation.Field(
+			&form.Email,
+			validation.Required,
+			validation.Length(1, 255),
+			is.Email,
+		),
+	)
+}
+
+// Submit validates and sends a verification request email
+// to the `form.Email` user.
+func (form *UserVerificationRequest) Submit() error {
+	if err := form.Validate(); err != nil {
+		return err
+	}
+
+	user, err := form.app.Dao().FindUserByEmail(form.Email)
+	if err != nil {
+		return err
+	}
+
+	if user.Verified {
+		return nil // already verified
+	}
+
+	now := time.Now().UTC()
+	lastVerificationSentAt := user.LastVerificationSentAt.Time()
+	if (now.Sub(lastVerificationSentAt)).Seconds() < form.resendThreshold {
+		return errors.New("A verification email was already sent.")
+	}
+
+	if err := mails.SendUserVerification(form.app, user); err != nil {
+		return err
+	}
+
+	// update last sent timestamp
+	user.LastVerificationSentAt = types.NowDateTime()
+
+	return form.app.Dao().SaveUser(user)
+}