dom/payments/MerchantValidationEvent.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/dom/MerchantValidationEvent.h"
   8 #include "nsNetCID.h"
   9 #include "mozilla/dom/Document.h"
  10 #include "mozilla/dom/PaymentRequest.h"
  11 #include "mozilla/dom/Location.h"
  12 #include "mozilla/dom/URL.h"
  13 #include "mozilla/ResultExtensions.h"
  14 #include "nsIURI.h"
  15 #include "nsNetUtil.h"
  16
  17 namespace mozilla::dom {
  18
  19 NS_IMPL_CYCLE_COLLECTION_INHERITED(MerchantValidationEvent, Event,
  20                                    mValidationURL, mRequest)
  21
  22 NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(MerchantValidationEvent, Event)
  23 NS_IMPL_CYCLE_COLLECTION_TRACE_END
  24
  25 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MerchantValidationEvent)
  26 NS_INTERFACE_MAP_END_INHERITING(Event)
  27
  28 NS_IMPL_ADDREF_INHERITED(MerchantValidationEvent, Event)
  29 NS_IMPL_RELEASE_INHERITED(MerchantValidationEvent, Event)
  30
  31 // User-land code constructor
  32 already_AddRefed<MerchantValidationEvent> MerchantValidationEvent::Constructor(
  33     const GlobalObject& aGlobal, const nsAString& aType,
  34     const MerchantValidationEventInit& aEventInitDict, ErrorResult& aRv) {
  35   // validate passed URL
  36   nsCOMPtr<mozilla::dom::EventTarget> owner =
  37       do_QueryInterface(aGlobal.GetAsSupports());
  38   return Constructor(owner, aType, aEventInitDict, aRv);
  39 }
  40
  41 // Internal JS object constructor
  42 already_AddRefed<MerchantValidationEvent> MerchantValidationEvent::Constructor(
  43     EventTarget* aOwner, const nsAString& aType,
  44     const MerchantValidationEventInit& aEventInitDict, ErrorResult& aRv) {
  45   RefPtr<MerchantValidationEvent> e = new MerchantValidationEvent(aOwner);
  46   bool trusted = e->Init(aOwner);
  47   e->InitEvent(aType, aEventInitDict.mBubbles, aEventInitDict.mCancelable);
  48   e->init(aEventInitDict, aRv);
  49   if (aRv.Failed()) {
  50     return nullptr;
  51   }
  52   e->SetTrusted(trusted);
  53   e->SetComposed(aEventInitDict.mComposed);
  54   return e.forget();
  55 }
  56
  57 void MerchantValidationEvent::init(
  58     const MerchantValidationEventInit& aEventInitDict, ErrorResult& aRv) {
  59   // Check methodName is valid
  60   if (!aEventInitDict.mMethodName.IsEmpty()) {
  61     PaymentRequest::IsValidPaymentMethodIdentifier(aEventInitDict.mMethodName,
  62                                                    aRv);
  63     if (aRv.Failed()) {
  64       return;
  65     }
  66   }
  67   SetMethodName(aEventInitDict.mMethodName);
  68   nsCOMPtr<nsPIDOMWindowInner> window = do_QueryInterface(GetParentObject());
  69   auto doc = window->GetExtantDoc();
  70   if (!doc) {
  71     aRv.ThrowAbortError("The owner document does not exist");
  72     return;
  73   }
  74
  75   Result<OwningNonNull<nsIURI>, nsresult> rv =
  76       doc->ResolveWithBaseURI(aEventInitDict.mValidationURL);
  77   if (rv.isErr()) {
  78     aRv.ThrowTypeError("validationURL cannot be parsed");
  79     return;
  80   }
  81   mValidationURL = rv.unwrap();
  82 }
  83
  84 MerchantValidationEvent::MerchantValidationEvent(EventTarget* aOwner)
  85     : Event(aOwner, nullptr, nullptr), mWaitForUpdate(false) {
  86   MOZ_ASSERT(aOwner);
  87 }
  88
  89 void MerchantValidationEvent::ResolvedCallback(JSContext* aCx,
  90                                                JS::Handle<JS::Value> aValue,
  91                                                ErrorResult& aRv) {
  92   MOZ_ASSERT(aCx);
  93   MOZ_ASSERT(mRequest);
  94
  95   if (!mWaitForUpdate) {
  96     return;
  97   }
  98   mWaitForUpdate = false;
  99
 100   // If we eventually end up supporting merchant validation
 101   // we would validate `aValue` here, as per:
 102   // https://w3c.github.io/payment-request/#validate-merchant-s-details-algorithm
 103   //
 104   // Right now, MerchantValidationEvent is only implemented for standards
 105   // conformance, which is why at this point we throw a
 106   // NS_ERROR_DOM_NOT_SUPPORTED_ERR.
 107
 108   ErrorResult result;
 109   result.ThrowNotSupportedError(
 110       "complete() is not supported by Firefox currently");
 111   mRequest->AbortUpdate(result);
 112   mRequest->SetUpdating(false);
 113 }
 114
 115 void MerchantValidationEvent::RejectedCallback(JSContext* aCx,
 116                                                JS::Handle<JS::Value> aValue,
 117                                                ErrorResult& aRv) {
 118   MOZ_ASSERT(mRequest);
 119   if (!mWaitForUpdate) {
 120     return;
 121   }
 122   mWaitForUpdate = false;
 123   ErrorResult result;
 124   result.ThrowAbortError(
 125       "The promise for MerchantValidtaionEvent.complete() is rejected");
 126   mRequest->AbortUpdate(result);
 127   mRequest->SetUpdating(false);
 128 }
 129
 130 void MerchantValidationEvent::Complete(Promise& aPromise, ErrorResult& aRv) {
 131   if (!IsTrusted()) {
 132     aRv.ThrowInvalidStateError("Called on an untrusted event");
 133     return;
 134   }
 135
 136   MOZ_ASSERT(mRequest);
 137
 138   if (mWaitForUpdate) {
 139     aRv.ThrowInvalidStateError(
 140         "The MerchantValidationEvent is waiting for update");
 141     return;
 142   }
 143
 144   if (!mRequest->ReadyForUpdate()) {
 145     aRv.ThrowInvalidStateError(
 146         "The PaymentRequest state is not eInteractive or the PaymentRequest is "
 147         "updating");
 148     return;
 149   }
 150
 151   aPromise.AppendNativeHandler(this);
 152
 153   StopPropagation();
 154   StopImmediatePropagation();
 155   mWaitForUpdate = true;
 156   mRequest->SetUpdating(true);
 157 }
 158
 159 void MerchantValidationEvent::SetRequest(PaymentRequest* aRequest) {
 160   MOZ_ASSERT(IsTrusted());
 161   MOZ_ASSERT(!mRequest);
 162   MOZ_ASSERT(aRequest);
 163
 164   mRequest = aRequest;
 165 }
 166
 167 void MerchantValidationEvent::GetValidationURL(nsAString& aValidationURL) {
 168   nsAutoCString utf8href;
 169   nsresult rv = mValidationURL->GetSpec(utf8href);
 170   MOZ_ASSERT(NS_SUCCEEDED(rv));
 171   Unused << rv;
 172   aValidationURL.Assign(NS_ConvertUTF8toUTF16(utf8href));
 173 }
 174
 175 void MerchantValidationEvent::GetMethodName(nsAString& aMethodName) {
 176   aMethodName.Assign(mMethodName);
 177 }
 178
 179 void MerchantValidationEvent::SetMethodName(const nsAString& aMethodName) {
 180   mMethodName.Assign(aMethodName);
 181 }
 182
 183 MerchantValidationEvent::~MerchantValidationEvent() = default;
 184
 185 JSObject* MerchantValidationEvent::WrapObjectInternal(
 186     JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
 187   return MerchantValidationEvent_Binding::Wrap(aCx, this, aGivenProto);
 188 }
 189
 190 }  // namespace mozilla::dom