#286 initial steps for supporting mollie: create a payment + redirect

src/main/java/alfio/config/SpringBootInitializer.java

@@ -88,7 +88,7 @@ public EmbeddedServletContainerCustomizer embeddedServletContainerCustomizer() {
             mimeMappings.put("svg", "image/svg+xml");
             container.setSessionTimeout(2, TimeUnit.HOURS);
             container.setMimeMappings(new MimeMappings(mimeMappings));
-            container.addErrorPages(new ErrorPage(HttpStatus.NOT_FOUND, "/404-not-found"), new ErrorPage(HttpStatus.INTERNAL_SERVER_ERROR, "/500-internal-server-error"), new ErrorPage("/session-expired"));
+            //container.addErrorPages(new ErrorPage(HttpStatus.NOT_FOUND, "/404-not-found"), new ErrorPage(HttpStatus.INTERNAL_SERVER_ERROR, "/500-internal-server-error"), new ErrorPage("/session-expired"));
 
             Optional.ofNullable(System.getProperty("alfio.worker.name")).ifPresent(workerName -> {
                 ((JettyEmbeddedServletContainerFactory)container).addServerCustomizers(server -> {

src/main/java/alfio/controller/ReservationController.java

@@ -420,8 +420,22 @@ public String handleReservation(@PathVariable("eventName") String eventName,
                 return redirectReservation(ticketReservation, eventName, reservationId);
             }
         }
-        //
 
+        //handle mollie redirect
+        if(paymentForm.getPaymentMethod() == PaymentProxy.MOLLIE) {
+            OrderSummary orderSummary = ticketReservationManager.orderSummaryForReservationId(reservationId, event, locale);
+            try {
+                String checkoutUrl = paymentManager.createMollieCheckoutRequest(event, reservationId, orderSummary, customerName,
+                    paymentForm.getEmail(), paymentForm.getBillingAddress(), locale, paymentForm.isPostponeAssignment());
+                assignTickets(eventName, reservationId, paymentForm, bindingResult, request, true);
+                return "redirect:" + checkoutUrl;
+            } catch (Exception e) {
+                bindingResult.reject(ErrorsCode.STEP_2_PAYMENT_REQUEST_CREATION);
+                SessionUtil.addToFlash(bindingResult, redirectAttributes);
+                return redirectReservation(ticketReservation, eventName, reservationId);
+            }
+        }
+        //
 
         final PaymentResult status = ticketReservationManager.confirm(paymentForm.getToken(), paymentForm.getPaypalPayerID(), event, reservationId, paymentForm.getEmail(),
             customerName, locale, paymentForm.getBillingAddress(), reservationCost, SessionUtil.retrieveSpecialPriceSessionId(request),

src/main/java/alfio/manager/MollieManager.java

@@ -16,10 +16,86 @@
  */
 package alfio.manager;
 
+import alfio.manager.system.ConfigurationManager;
+import alfio.model.CustomerName;
+import alfio.model.Event;
+import alfio.model.OrderSummary;
+import alfio.model.TicketReservation;
+import alfio.model.system.Configuration;
+import alfio.model.system.ConfigurationKeys;
+import alfio.repository.TicketReservationRepository;
+import alfio.util.Json;
+import com.google.gson.reflect.TypeToken;
+import com.squareup.okhttp.*;
+import lombok.AllArgsConstructor;
 import lombok.extern.log4j.Log4j2;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.context.MessageSource;
 import org.springframework.stereotype.Component;
 
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+
 @Component
 @Log4j2
+@AllArgsConstructor
 public class MollieManager {
+
+    private final OkHttpClient client = new OkHttpClient();
+    private final ConfigurationManager configurationManager;
+    private final MessageSource messageSource;
+    private final TicketReservationRepository ticketReservationRepository;
+
+    public String createCheckoutRequest(Event event, String reservationId, OrderSummary orderSummary, CustomerName customerName, String email, String billingAddress, Locale locale, boolean postponeAssignment) throws Exception {
+
+        String mollieAPIKey = configurationManager.getRequiredValue(Configuration.from(event.getOrganizationId(), ConfigurationKeys.MOLLIE_API_KEY));
+
+        String eventName = event.getShortName();
+
+        String baseUrl = StringUtils.removeEnd(configurationManager.getRequiredValue(Configuration.from(event.getOrganizationId(), event.getId(), ConfigurationKeys.BASE_URL)), "/");
+
+        String bookUrl = baseUrl+"/event/" + eventName + "/reservation/" + reservationId + "/book";
+
+
+        Map<String, Object> payload = new HashMap<>();
+        payload.put("amount", orderSummary.getTotalPrice()); // quite ugly, but the mollie api require json floating point...
+
+        //
+        String description = messageSource.getMessage("reservation-email-subject", new Object[] {configurationManager.getShortReservationID(event, reservationId), event.getDisplayName()}, locale);
+        payload.put("description", description);
+        payload.put("redirectUrl", bookUrl);
+        payload.put("webhookUrl", baseUrl+"/api/webhook/mollie"); //for testing: "https://test.alf.io/api/webhook/mollie"
+        payload.put("metadata", Collections.singletonMap("reservationId", reservationId));
+
+
+        RequestBody body = RequestBody.create(MediaType.parse("application/json"), Json.GSON.toJson(payload));
+        Request request = new Request.Builder().url("https://api.mollie.nl/v1/payments")
+            .header("Authorization", "Bearer " + mollieAPIKey)
+            .post(body)
+            .build();
+
+
+
+
+        Response resp = client.newCall(request).execute();
+        try(ResponseBody responseBody = resp.body()) {
+            String respBody = responseBody.string();
+            if (!resp.isSuccessful()) {
+                String msg = "was not able to create a payment for reservation id " + reservationId + ": " + respBody;
+                log.warn(msg);
+                throw new Exception(msg);
+            } else {
+
+                TicketReservation reservation = ticketReservationRepository.findReservationById(reservationId);
+                //TODO: switch the reservation in a status "PROCESSING" -> so we can then handle them in the webhook
+                //TODO: see statuses: https://www.mollie.com/en/docs/status
+                //      basically, we need to handle the cases "expired", "cancelled" and "paid"
+                Map<String, Object> res = Json.GSON.fromJson(respBody, (new TypeToken<Map<String, Object>>() {}).getType());
+                return ((Map<String, String> )res.get("links")).get("paymentUrl");
+            }
+        }
+
+    }
 }

src/main/java/alfio/manager/PaymentManager.java

@@ -134,6 +134,10 @@ public String createPaypalCheckoutRequest(Event event, String reservationId, Ord
         return paypalManager.createCheckoutRequest(event, reservationId, orderSummary, customerName, email, billingAddress, locale, postponeAssignment);
     }
 
+    public String createMollieCheckoutRequest(Event event, String reservationId, OrderSummary orderSummary, CustomerName customerName, String email, String billingAddress, Locale locale, boolean postponeAssignment) throws Exception {
+        return mollieManager.createCheckoutRequest(event, reservationId, orderSummary, customerName, email, billingAddress, locale, postponeAssignment);
+    }
+
     public boolean refund(TicketReservation reservation, Event event, Optional<Integer> amount, String username) {
         Transaction transaction = transactionRepository.loadByReservationId(reservation.getId());
         boolean res = false;

src/main/resources/alfio/i18n/public.properties

@@ -339,4 +339,6 @@ reservation-page.country.outside-eu=Outside the EU
 reservation-page.vat-validation-error=The VAT Nr. is not valid for the selected country. Please check the input parameter.
 reservation-page.vat-validation-required=Please validate the VAT number.
 reservation-page.vat-error=Cannot validate the VAT. Please try again.
-invoice.vat-voided=VAT not added as per EU Directives
+invoice.vat-voided=VAT not added as per EU Directives
+reservation-page.mollie.description=TODO: mollie description
+reservation-page.mollie=Mollie

src/main/resources/alfio/i18n/public_de.properties

@@ -332,3 +332,5 @@ reservation-page.time-for-completion.labels.and=und
 reservation-page.vat-validation-required=Bitte die MwSt-Nummer valideren.
 reservation-page.vat-validation-error=Die MwSt-Nummer ist nicht g\u00FCltig f\u00FCr das ausgew\u00E4hlte Land. Bitte pr\u00FCfen.
 reservation-page.receipt-address=Rechnungsadresse
+reservation-page.mollie=Mollie
+reservation-page.mollie.description=TODO: mollie description

src/main/resources/alfio/i18n/public_it.properties

@@ -325,4 +325,6 @@ reservation-page.time-for-completion.labels.plural=| secondi| minuti| ore| giorn
 reservation-page.time-for-completion.labels.and=e
 reservation-page.vat-validation-required=\u00C8 necessario validare il num. IVA prima di continuare.
 reservation-page.vat-validation-error=Il numero IVA immesso non risulta valido per il paese selezionato.
-reservation-page.receipt-address=Indirizzo per la ricevuta
+reservation-page.receipt-address=Indirizzo per la ricevuta
+reservation-page.mollie=Mollie
+reservation-page.mollie.description=TODO: mollie description

src/main/resources/alfio/i18n/public_nl.properties

@@ -336,3 +336,5 @@ reservation-page.time-for-completion.labels.and=en
 reservation-page.vat-validation-required=Verifieer uw BTW nummer.
 reservation-page.vat-validation-error=Uw BTW nummer is niet geldig voor het geselecteerde land. Check nogmaals of uw BTW nummer klopt.
 reservation-page.receipt-address=Factuuradres
+reservation-page.mollie=Mollie
+reservation-page.mollie.description=TODO: mollie description

src/main/webapp/WEB-INF/templates/event/payment/mollie.ms

@@ -0,0 +1 @@
+<div class="wMarginBottom wMarginTop text-muted">{{#i18n}}reservation-page.mollie.description{{/i18n}}</div>

src/main/webapp/WEB-INF/templates/event/reservation-page.ms

@@ -207,6 +207,7 @@
                     <input type="radio" required name="paymentMethod" id="option-{{.}}" data-payment-method="{{.}}" autocomplete="off" value="{{.}}">
                     {{#is-payment-method}}[STRIPE,{{.}}]<i class="fa fa-cc-stripe"></i> {{#i18n}}reservation-page.credit-card{{/i18n}}{{/is-payment-method}}
                     {{#is-payment-method}}[PAYPAL,{{.}}]<i class="fa fa-paypal"></i> {{#i18n}}reservation-page.paypal{{/i18n}}{{/is-payment-method}}
+                    {{#is-payment-method}}[MOLLIE,{{.}}] {{#i18n}}reservation-page.mollie{{/i18n}}{{/is-payment-method}}
                     {{#is-payment-method}}[ON_SITE,{{.}}]<i class="fa fa-money"></i> {{#i18n}}reservation-page.on-site{{/i18n}}{{/is-payment-method}}
                     {{#is-payment-method}}[OFFLINE,{{.}}]<i class="fa fa-exchange"></i> {{#i18n}}reservation-page.offline{{/i18n}}{{/is-payment-method}}
                 </label>
@@ -218,6 +219,7 @@
                 <h4 class="wMarginTop">
                 {{#is-payment-method}}[STRIPE,{{.}}]<i class="fa fa-credit-card"></i> {{#i18n}}reservation-page.credit-card{{/i18n}}{{/is-payment-method}}
                 {{#is-payment-method}}[PAYPAL,{{.}}]<i class="fa fa-paypal"></i> {{#i18n}}reservation-page.paypal{{/i18n}}{{/is-payment-method}}
+                {{#is-payment-method}}[MOLLIE,{{.}}] {{#i18n}}reservation-page.mollie{{/i18n}}{{/is-payment-method}}
                 {{#is-payment-method}}[ON_SITE,{{.}}]<i class="fa fa-money"></i> {{#i18n}}reservation-page.on-site{{/i18n}}{{/is-payment-method}}
                 {{#is-payment-method}}[OFFLINE,{{.}}]<i class="fa fa-exchange"></i> {{#i18n}}reservation-page.offline{{/i18n}}{{/is-payment-method}}
                 </h4>
@@ -228,6 +230,7 @@
             <div class="payment-method-detail" id="payment-method-{{.}}">
                 {{#is-payment-method}}[STRIPE,{{.}}]{{> /event/payment/stripe }}{{/is-payment-method}}
                 {{#is-payment-method}}[PAYPAL,{{.}}]{{> /event/payment/paypal }}{{/is-payment-method}}
+                {{#is-payment-method}}[MOLLIE,{{.}}]{{> /event/payment/mollie }}{{/is-payment-method}}
                 {{#is-payment-method}}[ON_SITE,{{.}}]{{> /event/payment/on-site }}{{/is-payment-method}}
                 {{#is-payment-method}}[OFFLINE,{{.}}]{{> /event/payment/offline }}{{/is-payment-method}}
             </div>