1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/base/Crypto.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,216 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.6 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +#include "Crypto.h"
1.8 +#include "jsfriendapi.h"
1.9 +#include "nsCOMPtr.h"
1.10 +#include "nsIRandomGenerator.h"
1.11 +#include "nsPIDOMWindow.h"
1.12 +#include "MainThreadUtils.h"
1.13 +#include "nsXULAppAPI.h"
1.14 +
1.15 +#include "mozilla/dom/ContentChild.h"
1.16 +#include "mozilla/dom/CryptoBinding.h"
1.17 +#include "nsServiceManagerUtils.h"
1.18 +
1.19 +using mozilla::dom::ContentChild;
1.20 +
1.21 +using namespace js::ArrayBufferView;
1.22 +
1.23 +namespace mozilla {
1.24 +namespace dom {
1.25 +
1.26 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Crypto)
1.27 + NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
1.28 + NS_INTERFACE_MAP_ENTRY(nsISupports)
1.29 + NS_INTERFACE_MAP_ENTRY(nsIDOMCrypto)
1.30 +NS_INTERFACE_MAP_END
1.31 +
1.32 +NS_IMPL_CYCLE_COLLECTING_ADDREF(Crypto)
1.33 +NS_IMPL_CYCLE_COLLECTING_RELEASE(Crypto)
1.34 +
1.35 +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(Crypto, mWindow)
1.36 +
1.37 +Crypto::Crypto()
1.38 +{
1.39 + MOZ_COUNT_CTOR(Crypto);
1.40 + SetIsDOMBinding();
1.41 +}
1.42 +
1.43 +Crypto::~Crypto()
1.44 +{
1.45 + MOZ_COUNT_DTOR(Crypto);
1.46 +}
1.47 +
1.48 +void
1.49 +Crypto::Init(nsIDOMWindow* aWindow)
1.50 +{
1.51 + mWindow = do_QueryInterface(aWindow);
1.52 + MOZ_ASSERT(mWindow);
1.53 +}
1.54 +
1.55 +/* virtual */ JSObject*
1.56 +Crypto::WrapObject(JSContext* aCx)
1.57 +{
1.58 + return CryptoBinding::Wrap(aCx, this);
1.59 +}
1.60 +
1.61 +void
1.62 +Crypto::GetRandomValues(JSContext* aCx, const ArrayBufferView& aArray,
1.63 + JS::MutableHandle<JSObject*> aRetval,
1.64 + ErrorResult& aRv)
1.65 +{
1.66 + NS_ABORT_IF_FALSE(NS_IsMainThread(), "Called on the wrong thread");
1.67 +
1.68 + JS::Rooted<JSObject*> view(aCx, aArray.Obj());
1.69 +
1.70 + // Throw if the wrong type of ArrayBufferView is passed in
1.71 + // (Part of the Web Crypto API spec)
1.72 + switch (JS_GetArrayBufferViewType(view)) {
1.73 + case TYPE_INT8:
1.74 + case TYPE_UINT8:
1.75 + case TYPE_UINT8_CLAMPED:
1.76 + case TYPE_INT16:
1.77 + case TYPE_UINT16:
1.78 + case TYPE_INT32:
1.79 + case TYPE_UINT32:
1.80 + break;
1.81 + default:
1.82 + aRv.Throw(NS_ERROR_DOM_TYPE_MISMATCH_ERR);
1.83 + return;
1.84 + }
1.85 +
1.86 + aArray.ComputeLengthAndData();
1.87 + uint32_t dataLen = aArray.Length();
1.88 + if (dataLen == 0) {
1.89 + NS_WARNING("ArrayBufferView length is 0, cannot continue");
1.90 + aRetval.set(view);
1.91 + return;
1.92 + } else if (dataLen > 65536) {
1.93 + aRv.Throw(NS_ERROR_DOM_QUOTA_EXCEEDED_ERR);
1.94 + return;
1.95 + }
1.96 +
1.97 + uint8_t* data = aArray.Data();
1.98 +
1.99 + if (XRE_GetProcessType() != GeckoProcessType_Default) {
1.100 + InfallibleTArray<uint8_t> randomValues;
1.101 + // Tell the parent process to generate random values via PContent
1.102 + ContentChild* cc = ContentChild::GetSingleton();
1.103 + if (!cc->SendGetRandomValues(dataLen, &randomValues) ||
1.104 + randomValues.Length() == 0) {
1.105 + aRv.Throw(NS_ERROR_FAILURE);
1.106 + return;
1.107 + }
1.108 + NS_ASSERTION(dataLen == randomValues.Length(),
1.109 + "Invalid length returned from parent process!");
1.110 + memcpy(data, randomValues.Elements(), dataLen);
1.111 + } else {
1.112 + uint8_t *buf = GetRandomValues(dataLen);
1.113 +
1.114 + if (!buf) {
1.115 + aRv.Throw(NS_ERROR_FAILURE);
1.116 + return;
1.117 + }
1.118 +
1.119 + memcpy(data, buf, dataLen);
1.120 + NS_Free(buf);
1.121 + }
1.122 +
1.123 + aRetval.set(view);
1.124 +}
1.125 +
1.126 +#ifndef MOZ_DISABLE_CRYPTOLEGACY
1.127 +// Stub out the legacy nsIDOMCrypto methods. The actual
1.128 +// implementations are in security/manager/ssl/src/nsCrypto.{cpp,h}
1.129 +
1.130 +NS_IMETHODIMP
1.131 +Crypto::GetEnableSmartCardEvents(bool *aEnableSmartCardEvents)
1.132 +{
1.133 + return NS_ERROR_NOT_IMPLEMENTED;
1.134 +}
1.135 +
1.136 +NS_IMETHODIMP
1.137 +Crypto::SetEnableSmartCardEvents(bool aEnableSmartCardEvents)
1.138 +{
1.139 + return NS_ERROR_NOT_IMPLEMENTED;
1.140 +}
1.141 +
1.142 +bool
1.143 +Crypto::EnableSmartCardEvents()
1.144 +{
1.145 + return false;
1.146 +}
1.147 +
1.148 +void
1.149 +Crypto::SetEnableSmartCardEvents(bool aEnable, ErrorResult& aRv)
1.150 +{
1.151 + aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
1.152 +}
1.153 +
1.154 +void
1.155 +Crypto::GetVersion(nsString& aVersion)
1.156 +{
1.157 +}
1.158 +
1.159 +mozilla::dom::CRMFObject*
1.160 +Crypto::GenerateCRMFRequest(JSContext* aContext,
1.161 + const nsCString& aReqDN,
1.162 + const nsCString& aRegToken,
1.163 + const nsCString& aAuthenticator,
1.164 + const nsCString& aEaCert,
1.165 + const nsCString& aJsCallback,
1.166 + const Sequence<JS::Value>& aArgs,
1.167 + ErrorResult& aRv)
1.168 +{
1.169 + aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
1.170 + return nullptr;
1.171 +}
1.172 +
1.173 +void
1.174 +Crypto::ImportUserCertificates(const nsAString& aNickname,
1.175 + const nsAString& aCmmfResponse,
1.176 + bool aDoForcedBackup,
1.177 + nsAString& aReturn,
1.178 + ErrorResult& aRv)
1.179 +{
1.180 + aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
1.181 +}
1.182 +
1.183 +void
1.184 +Crypto::SignText(JSContext* aContext,
1.185 + const nsAString& aStringToSign,
1.186 + const nsAString& aCaOption,
1.187 + const Sequence<nsCString>& aArgs,
1.188 + nsAString& aReturn)
1.189 +
1.190 +{
1.191 + aReturn.AssignLiteral("error:internalError");
1.192 +}
1.193 +
1.194 +void
1.195 +Crypto::Logout(ErrorResult& aRv)
1.196 +{
1.197 + aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
1.198 +}
1.199 +
1.200 +#endif
1.201 +
1.202 +/* static */ uint8_t*
1.203 +Crypto::GetRandomValues(uint32_t aLength)
1.204 +{
1.205 + nsCOMPtr<nsIRandomGenerator> randomGenerator;
1.206 + nsresult rv;
1.207 + randomGenerator = do_GetService("@mozilla.org/security/random-generator;1");
1.208 + NS_ENSURE_TRUE(randomGenerator, nullptr);
1.209 +
1.210 + uint8_t* buf;
1.211 + rv = randomGenerator->GenerateRandomBytes(aLength, &buf);
1.212 +
1.213 + NS_ENSURE_SUCCESS(rv, nullptr);
1.214 +
1.215 + return buf;
1.216 +}
1.217 +
1.218 +} // namespace dom
1.219 +} // namespace mozilla
