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comparison: dom/ipc/PermissionMessageUtils.cpp
dom/ipc/PermissionMessageUtils.cpp
- changeset 2
- 7e26c7da4463
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| -1:000000000000 | 0:5a0b8ca2128d |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "mozilla/dom/PermissionMessageUtils.h" | |
| 7 #include "nsISerializable.h" | |
| 8 #include "nsSerializationHelper.h" | |
| 9 | |
| 10 namespace IPC { | |
| 11 | |
| 12 void | |
| 13 ParamTraits<Principal>::Write(Message* aMsg, const paramType& aParam) { | |
| 14 bool isNull = !aParam.mPrincipal; | |
| 15 WriteParam(aMsg, isNull); | |
| 16 if (isNull) { | |
| 17 return; | |
| 18 } | |
| 19 | |
| 20 bool isSerialized = false; | |
| 21 nsCString principalString; | |
| 22 nsCOMPtr<nsISerializable> serializable = do_QueryInterface(aParam.mPrincipal); | |
| 23 if (serializable) { | |
| 24 nsresult rv = NS_SerializeToString(serializable, principalString); | |
| 25 if (NS_SUCCEEDED(rv)) { | |
| 26 isSerialized = true; | |
| 27 } | |
| 28 } | |
| 29 | |
| 30 if (!isSerialized) { | |
| 31 NS_RUNTIMEABORT("Unable to serialize principal."); | |
| 32 return; | |
| 33 } | |
| 34 | |
| 35 WriteParam(aMsg, principalString); | |
| 36 } | |
| 37 | |
| 38 bool | |
| 39 ParamTraits<Principal>::Read(const Message* aMsg, void** aIter, paramType* aResult) | |
| 40 { | |
| 41 bool isNull; | |
| 42 if (!ReadParam(aMsg, aIter, &isNull)) { | |
| 43 return false; | |
| 44 } | |
| 45 | |
| 46 if (isNull) { | |
| 47 aResult->mPrincipal = nullptr; | |
| 48 return true; | |
| 49 } | |
| 50 | |
| 51 nsCString principalString; | |
| 52 if (!ReadParam(aMsg, aIter, &principalString)) { | |
| 53 return false; | |
| 54 } | |
| 55 | |
| 56 nsCOMPtr<nsISupports> iSupports; | |
| 57 nsresult rv = NS_DeserializeObject(principalString, getter_AddRefs(iSupports)); | |
| 58 NS_ENSURE_SUCCESS(rv, false); | |
| 59 | |
| 60 nsCOMPtr<nsIPrincipal> principal = do_QueryInterface(iSupports); | |
| 61 NS_ENSURE_TRUE(principal, false); | |
| 62 | |
| 63 principal.swap(aResult->mPrincipal); | |
| 64 return true; | |
| 65 } | |
| 66 | |
| 67 } // namespace IPC | |
| 68 |
