chore: update license validation

frontend/web/src/pages/SubscriptionSetting.tsx

@@ -76,7 +76,7 @@ const SubscriptionSetting: React.FC = () => {
         <div className="w-full flex justify-between items-center mt-4">
           <div>
             {subscription.plan === PlanType.FREE && (
-              <Link href="https://yourselfhosted.lemonsqueezy.com/checkout/buy/947e9a56-c93a-4294-8d71-2ea4b0f3ec51" target="_blank">
+              <Link href="https://yourselfhosted.gumroad.com/l/slash-pro" target="_blank">
                 Buy a license key
                 <Icon.ExternalLink className="w-4 h-auto ml-1" />
               </Link>
@@ -179,7 +179,7 @@ const SubscriptionSetting: React.FC = () => {
                 <Link
                   className="w-full"
                   underline="none"
-                  href="https://yourselfhosted.lemonsqueezy.com/checkout/buy/947e9a56-c93a-4294-8d71-2ea4b0f3ec51"
+                  href="https://yourselfhosted.gumroad.com/l/slash-pro"
                   target="_blank"
                 >
                   <Button className="w-full bg-gradient-to-r from-pink-500 to-purple-500 shadow hover:opacity-80">Get Pro License</Button>

server/service/license/gumroad/requests.go

@@ -0,0 +1,204 @@
+package gumroad
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+
+	"github.com/pkg/errors"
+)
+
+const (
+	// The base API URL for the Gumroad API.
+	baseAPIURL = "https://api.gumroad.com"
+	// The product ID from Gumroad (base64 encoded).
+	productID = "mjSmJtQJcYNtu4vdxeQWNg=="
+)
+
+type Purchase struct {
+	SellerID                string  `json:"seller_id"`
+	ProductID               string  `json:"product_id"`
+	ProductName             string  `json:"product_name"`
+	Permalink               string  `json:"permalink"`
+	ProductPermalink        string  `json:"product_permalink"`
+	Email                   string  `json:"email"`
+	Price                   int     `json:"price"`
+	GumroadFee              int     `json:"gumroad_fee"`
+	Currency                string  `json:"currency"`
+	Quantity                int     `json:"quantity"`
+	SaleID                  string  `json:"sale_id"`
+	SaleTimestamp           string  `json:"sale_timestamp"`
+	PurchaserID             string  `json:"purchaser_id,omitempty"`
+	SubscriptionID          string  `json:"subscription_id,omitempty"`
+	LicenseKey              string  `json:"license_key"`
+	IsMultiseatLicense      bool    `json:"is_multiseat_license"`
+	IPCountry               string  `json:"ip_country"`
+	Recurrence              string  `json:"recurrence,omitempty"`
+	Refunded                bool    `json:"refunded"`
+	Disputed                bool    `json:"disputed"`
+	DisputeWon              bool    `json:"dispute_won"`
+	Chargebacked            bool    `json:"chargebacked"`
+	ID                      string  `json:"id"`
+	CreatedAt               string  `json:"created_at"`
+	SubscriptionEndedAt     *string `json:"subscription_ended_at"`
+	SubscriptionCancelledAt *string `json:"subscription_cancelled_at"`
+	SubscriptionFailedAt    *string `json:"subscription_failed_at"`
+}
+
+type ValidateLicenseKeyResponse struct {
+	Success  bool      `json:"success"`
+	Uses     int       `json:"uses"`
+	Purchase *Purchase `json:"purchase"`
+	Message  *string   `json:"message"`
+}
+
+type ActiveLicenseKeyResponse struct {
+	Success  bool      `json:"success"`
+	Uses     int       `json:"uses"`
+	Purchase *Purchase `json:"purchase"`
+	Message  *string   `json:"message"`
+}
+
+func ValidateLicenseKey(licenseKey string, instanceName string) (*ValidateLicenseKeyResponse, error) {
+	data := map[string]string{
+		"product_id":  productID,
+		"license_key": licenseKey,
+	}
+	if instanceName != "" {
+		data["increment_uses_count"] = "false"
+	}
+	payload, err := json.Marshal(data)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to marshal data")
+	}
+
+	req, err := http.NewRequest("POST", fmt.Sprintf("%s/v2/licenses/verify", baseAPIURL), bytes.NewBuffer(payload))
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to create request")
+	}
+	req.Header.Set("Accept", "application/json")
+	req.Header.Set("Content-Type", "application/json")
+
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to do request")
+	}
+	defer resp.Body.Close()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	var response ValidateLicenseKeyResponse
+	if err := json.Unmarshal(body, &response); err != nil {
+		return nil, err
+	}
+
+	// Check for errors
+	if response.Message != nil && *response.Message != "" {
+		return nil, errors.New(*response.Message)
+	}
+
+	// Validate the response
+	if response.Success && response.Purchase != nil {
+		purchase := response.Purchase
+
+		// Check if purchase was refunded/chargebacked
+		if purchase.Refunded {
+			return nil, errors.New("license key has been refunded")
+		}
+		if purchase.Chargebacked {
+			return nil, errors.New("license key has been chargebacked")
+		}
+		if purchase.Disputed && !purchase.DisputeWon {
+			return nil, errors.New("license key is disputed")
+		}
+
+		// Check subscription status (for membership products)
+		if purchase.SubscriptionEndedAt != nil && *purchase.SubscriptionEndedAt != "" {
+			return nil, errors.New("subscription has ended")
+		}
+		if purchase.SubscriptionCancelledAt != nil && *purchase.SubscriptionCancelledAt != "" {
+			return nil, errors.New("subscription has been cancelled")
+		}
+		if purchase.SubscriptionFailedAt != nil && *purchase.SubscriptionFailedAt != "" {
+			return nil, errors.New("subscription payment failed")
+		}
+	}
+
+	return &response, nil
+}
+
+func ActiveLicenseKey(licenseKey string, instanceName string) (*ActiveLicenseKeyResponse, error) {
+	data := map[string]string{
+		"product_id":           productID,
+		"license_key":          licenseKey,
+		"increment_uses_count": "true",
+	}
+	payload, err := json.Marshal(data)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to marshal data")
+	}
+
+	req, err := http.NewRequest("POST", fmt.Sprintf("%s/v2/licenses/verify", baseAPIURL), bytes.NewBuffer(payload))
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to create request")
+	}
+	req.Header.Set("Accept", "application/json")
+	req.Header.Set("Content-Type", "application/json")
+
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to do request")
+	}
+	defer resp.Body.Close()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	var response ActiveLicenseKeyResponse
+	if err := json.Unmarshal(body, &response); err != nil {
+		return nil, err
+	}
+
+	// Check for errors
+	if response.Message != nil && *response.Message != "" {
+		return nil, errors.New(*response.Message)
+	}
+
+	// Validate the response
+	if response.Success && response.Purchase != nil {
+		purchase := response.Purchase
+
+		// Check if purchase was refunded/chargebacked
+		if purchase.Refunded {
+			return nil, errors.New("license key has been refunded")
+		}
+		if purchase.Chargebacked {
+			return nil, errors.New("license key has been chargebacked")
+		}
+		if purchase.Disputed && !purchase.DisputeWon {
+			return nil, errors.New("license key is disputed")
+		}
+
+		// Check subscription status (for membership products)
+		if purchase.SubscriptionEndedAt != nil && *purchase.SubscriptionEndedAt != "" {
+			return nil, errors.New("subscription has ended")
+		}
+		if purchase.SubscriptionCancelledAt != nil && *purchase.SubscriptionCancelledAt != "" {
+			return nil, errors.New("subscription has been cancelled")
+		}
+		if purchase.SubscriptionFailedAt != nil && *purchase.SubscriptionFailedAt != "" {
+			return nil, errors.New("subscription payment failed")
+		}
+	}
+
+	return &response, nil
+}

server/service/license/license.go

@@ -13,6 +13,7 @@ import (
 	v1pb "github.com/yourselfhosted/slash/proto/gen/api/v1"
 	storepb "github.com/yourselfhosted/slash/proto/gen/store"
 	"github.com/yourselfhosted/slash/server/profile"
+	"github.com/yourselfhosted/slash/server/service/license/gumroad"
 	"github.com/yourselfhosted/slash/server/service/license/lemonsqueezy"
 	"github.com/yourselfhosted/slash/store"
 )
@@ -159,18 +160,31 @@ func validateLicenseKey(licenseKey string) (*ValidateResult, error) {
 		return result, nil
 	}
 
-	// Try to validate the license key with the license server.
-	validateResponse, err := lemonsqueezy.ValidateLicenseKey(licenseKey, "")
-	if err != nil {
-		return nil, errors.Wrap(err, "failed to validate license key")
+	// Try to validate the license key with Gumroad.
+	gumroadResponse, err := gumroad.ValidateLicenseKey(licenseKey, "")
+	if err == nil && gumroadResponse.Success {
+		result := &ValidateResult{
+			Plan:     v1pb.PlanType_PRO,
+			Features: getDefaultFeatures(v1pb.PlanType_PRO),
+			Seats:    -1, // Unlimited seats for Gumroad subscriptions
 		}
-	if validateResponse.Valid {
+		// For subscription products, set expiration based on recurrence
+		if gumroadResponse.Purchase != nil && gumroadResponse.Purchase.Recurrence != "" {
+			// Subscription is active, set expiration to 1 year from now
+			result.ExpiresTime = time.Now().AddDate(1, 0, 0)
+		}
+		return result, nil
+	}
+
+	// Try to validate the license key with LemonSqueezy (fallback for existing customers).
+	lemonsqueezyResponse, err := lemonsqueezy.ValidateLicenseKey(licenseKey, "")
+	if err == nil && lemonsqueezyResponse.Valid {
 		result := &ValidateResult{
 			Plan:     v1pb.PlanType_PRO,
 			Features: getDefaultFeatures(v1pb.PlanType_PRO),
 		}
-		if validateResponse.LicenseKey.ExpiresAt != nil && *validateResponse.LicenseKey.ExpiresAt != "" {
-			expiresTime, err := time.Parse(time.RFC3339Nano, *validateResponse.LicenseKey.ExpiresAt)
+		if lemonsqueezyResponse.LicenseKey.ExpiresAt != nil && *lemonsqueezyResponse.LicenseKey.ExpiresAt != "" {
+			expiresTime, err := time.Parse(time.RFC3339Nano, *lemonsqueezyResponse.LicenseKey.ExpiresAt)
 			if err != nil {
 				return nil, errors.Wrap(err, "failed to parse license key expires time")
 			}