tor-browser

The Tor Browser
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ReferrerInfoUtils.cpp (1645B)

      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/ReferrerInfoUtils.h"
      8 
      9 #include "ipc/IPCMessageUtilsSpecializations.h"
     10 #include "nsSerializationHelper.h"
     11 #include "nsString.h"
     12 
     13 namespace IPC {
     14 
     15 void ParamTraits<nsIReferrerInfo*>::Write(MessageWriter* aWriter,
     16                                          nsIReferrerInfo* aParam) {
     17  bool isNull = !aParam;
     18  WriteParam(aWriter, isNull);
     19  if (isNull) {
     20    return;
     21  }
     22  nsAutoCString infoString;
     23  nsresult rv = NS_SerializeToString(aParam, infoString);
     24  if (NS_FAILED(rv)) {
     25    MOZ_CRASH("Unable to serialize referrer info.");
     26    return;
     27  }
     28  WriteParam(aWriter, infoString);
     29 }
     30 
     31 bool ParamTraits<nsIReferrerInfo*>::Read(MessageReader* aReader,
     32                                         RefPtr<nsIReferrerInfo>* aResult) {
     33  bool isNull;
     34  if (!ReadParam(aReader, &isNull)) {
     35    return false;
     36  }
     37  if (isNull) {
     38    *aResult = nullptr;
     39    return true;
     40  }
     41  nsAutoCString infoString;
     42  if (!ReadParam(aReader, &infoString)) {
     43    return false;
     44  }
     45  nsCOMPtr<nsISupports> iSupports;
     46  nsresult rv = NS_DeserializeObject(infoString, getter_AddRefs(iSupports));
     47  NS_ENSURE_SUCCESS(rv, false);
     48  nsCOMPtr<nsIReferrerInfo> referrerInfo = do_QueryInterface(iSupports);
     49  NS_ENSURE_TRUE(referrerInfo, false);
     50  *aResult = ToRefPtr(std::move(referrerInfo));
     51  return true;
     52 }
     53 
     54 }  // namespace IPC