Files
Crussell/backend/handlers/webhooks/square.go
T
popertots 2e1ab9d745 feat: Square payment integration, booking flow redesign, and timezone/weekday fixes
- Add Square payment integration (mock + handlers + UI): terminal/online payments,
  refunds, tips, saved cards, webhooks. Build-tagged dev/prod clients.
- Redesign booking flow: Step 4 conditional (deposit only), Step 5 confirmation
  screen with booking ID, auto-submit on transition.
- Redesign schedule modal: 2x3 button grid with Pay Deposit/Pay Early logic.
- Add deposit warning banner at Step 1 for users with outstanding deposits.
- Fix weekday conversion bug: Go 0=Sunday vs DB 0=Monday mismatch in 6 locations.
- Fix timezone bug: UTC vs London time in closing hours validation.
- Fix frontend error parsing: plain text backend errors now displayed correctly.
- Fix crypto.randomUUID fallback for environments without Web Crypto.
- Add 7 new regression tests: closing hours, advance check, active booking limit,
  weekday conversion, UTC/London, deposit snapshot, exceptional hours.
- Fix 3 flaky tests: dynamic dates instead of fixed, no-show timing.
2026-05-23 11:29:34 +01:00

79 lines
2.1 KiB
Go

package webhooks
import (
"crypto/hmac"
"crypto/sha256"
"encoding/hex"
"encoding/json"
"io"
"log"
"net/http"
"os"
)
type SquareWebhookEvent struct {
Type string `json:"type"`
EventID string `json:"event_id"`
CreatedAt string `json:"created_at"`
Data json.RawMessage `json:"data"`
LocationID string `json:"location_id"`
}
func HandleSquareWebhook(w http.ResponseWriter, r *http.Request) {
body, err := io.ReadAll(r.Body)
if err != nil {
log.Printf("Failed to read webhook body: %v", err)
http.Error(w, "Internal server error", http.StatusInternalServerError)
return
}
defer r.Body.Close()
signature := r.Header.Get("x-square-signature")
signingKey := os.Getenv("SQUARE_WEBHOOK_SIGNATURE_KEY")
if signingKey != "" && signature != "" {
if !verifySquareSignature(body, signature, signingKey) {
log.Printf("Invalid Square webhook signature")
http.Error(w, "Invalid signature", http.StatusForbidden)
return
}
}
var event SquareWebhookEvent
if err := json.Unmarshal(body, &event); err != nil {
log.Printf("Failed to parse webhook event: %v", err)
http.Error(w, "Invalid event", http.StatusBadRequest)
return
}
log.Printf("[SQUARE-WEBHOOK] Received event: %s", event.Type)
switch event.Type {
case "payment.updated":
handlePaymentUpdated(event.Data)
case "refund.updated":
handleRefundUpdated(event.Data)
case "dispute.created":
log.Printf("[SQUARE-WEBHOOK] Dispute created: %s", event.EventID)
default:
log.Printf("[SQUARE-WEBHOOK] Unknown event type: %s", event.Type)
}
w.WriteHeader(http.StatusOK)
w.Write([]byte("ok"))
}
func verifySquareSignature(body []byte, signature, signingKey string) bool {
mac := hmac.New(sha256.New, []byte(signingKey))
mac.Write(body)
expected := hex.EncodeToString(mac.Sum(nil))
return hmac.Equal([]byte(signature), []byte(expected))
}
func handlePaymentUpdated(data json.RawMessage) {
log.Printf("[SQUARE-WEBHOOK] payment.updated: %s", string(data))
}
func handleRefundUpdated(data json.RawMessage) {
log.Printf("[SQUARE-WEBHOOK] refund.updated: %s", string(data))
}