dom/payments/BasicCardPayment.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 "BasicCardPayment.h"
   8 #include "PaymentAddress.h"
   9 #include "mozilla/ClearOnShutdown.h"
  10 #include "mozilla/ErrorResult.h"
  11 #include "nsArrayUtils.h"
  12
  13 namespace mozilla::dom {
  14 namespace {
  15 bool IsValidNetwork(const nsAString& aNetwork) {
  16   return aNetwork.Equals(u"amex"_ns) || aNetwork.Equals(u"cartebancaire"_ns) ||
  17          aNetwork.Equals(u"diners"_ns) || aNetwork.Equals(u"discover"_ns) ||
  18          aNetwork.Equals(u"jcb"_ns) || aNetwork.Equals(u"mastercard"_ns) ||
  19          aNetwork.Equals(u"mir"_ns) || aNetwork.Equals(u"unionpay"_ns) ||
  20          aNetwork.Equals(u"visa"_ns);
  21 }
  22 }  // end of namespace
  23
  24 StaticRefPtr<BasicCardService> gBasicCardService;
  25
  26 already_AddRefed<BasicCardService> BasicCardService::GetService() {
  27   if (!gBasicCardService) {
  28     gBasicCardService = new BasicCardService();
  29     ClearOnShutdown(&gBasicCardService);
  30   }
  31   RefPtr<BasicCardService> service = gBasicCardService;
  32   return service.forget();
  33 }
  34
  35 bool BasicCardService::IsBasicCardPayment(const nsAString& aSupportedMethods) {
  36   return aSupportedMethods.Equals(u"basic-card"_ns);
  37 }
  38
  39 bool BasicCardService::IsValidBasicCardRequest(JSContext* aCx, JSObject* aData,
  40                                                nsAString& aErrorMsg) {
  41   if (!aData) {
  42     return true;
  43   }
  44   JS::RootedValue data(aCx, JS::ObjectValue(*aData));
  45
  46   BasicCardRequest request;
  47   if (!request.Init(aCx, data)) {
  48     aErrorMsg.AssignLiteral(
  49         "Fail to convert methodData.data to BasicCardRequest.");
  50     return false;
  51   }
  52
  53   for (const nsString& network : request.mSupportedNetworks) {
  54     if (!IsValidNetwork(network)) {
  55       aErrorMsg.Assign(network + u" is not an valid network."_ns);
  56       return false;
  57     }
  58   }
  59   return true;
  60 }
  61
  62 bool BasicCardService::IsValidExpiryMonth(const nsAString& aExpiryMonth) {
  63   // ExpiryMonth can only be
  64   //   1. empty string
  65   //   2. 01 ~ 12
  66   if (aExpiryMonth.IsEmpty()) {
  67     return true;
  68   }
  69   if (aExpiryMonth.Length() != 2) {
  70     return false;
  71   }
  72   // can only be 00 ~ 09
  73   if (aExpiryMonth.CharAt(0) == '0') {
  74     if (aExpiryMonth.CharAt(1) < '0' || aExpiryMonth.CharAt(1) > '9') {
  75       return false;
  76     }
  77     return true;
  78   }
  79   // can only be 11 or 12
  80   if (aExpiryMonth.CharAt(0) == '1') {
  81     if (aExpiryMonth.CharAt(1) != '1' && aExpiryMonth.CharAt(1) != '2') {
  82       return false;
  83     }
  84     return true;
  85   }
  86   return false;
  87 }
  88
  89 bool BasicCardService::IsValidExpiryYear(const nsAString& aExpiryYear) {
  90   // ExpiryYear can only be
  91   //   1. empty string
  92   //   2. 0000 ~ 9999
  93   if (!aExpiryYear.IsEmpty()) {
  94     if (aExpiryYear.Length() != 4) {
  95       return false;
  96     }
  97     for (uint32_t index = 0; index < 4; ++index) {
  98       if (aExpiryYear.CharAt(index) < '0' || aExpiryYear.CharAt(index) > '9') {
  99         return false;
 100       }
 101     }
 102   }
 103   return true;
 104 }
 105
 106 void BasicCardService::CheckForValidBasicCardErrors(JSContext* aCx,
 107                                                     JSObject* aData,
 108                                                     ErrorResult& aRv) {
 109   MOZ_ASSERT(aData, "Don't pass null data");
 110   JS::RootedValue data(aCx, JS::ObjectValue(*aData));
 111
 112   // XXXbz Just because aData converts to BasicCardErrors right now doesn't mean
 113   // it will if someone tries again!  Should we be replacing aData with a
 114   // conversion of the BasicCardErrors dictionary to a JS object in a clean
 115   // compartment or something?
 116   BasicCardErrors bcError;
 117   if (!bcError.Init(aCx, data)) {
 118     aRv.NoteJSContextException(aCx);
 119   }
 120 }
 121 }  // namespace mozilla::dom