tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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PermissionMessageUtils.cpp (1492B)

      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/PermissionMessageUtils.h"
      8 
      9 #include "ipc/IPCMessageUtilsSpecializations.h"
     10 #include "mozilla/ipc/BackgroundUtils.h"
     11 #include "mozilla/ipc/PBackgroundSharedTypes.h"
     12 #include "nsCOMPtr.h"
     13 #include "nsIPrincipal.h"
     14 
     15 namespace IPC {
     16 
     17 void ParamTraits<nsIPrincipal*>::Write(IPC::MessageWriter* aWriter,
     18                                       nsIPrincipal* aParam) {
     19  mozilla::Maybe<mozilla::ipc::PrincipalInfo> info;
     20  if (aParam) {
     21    info.emplace();
     22    nsresult rv = PrincipalToPrincipalInfo(aParam, info.ptr());
     23    MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
     24  }
     25 
     26  WriteParam(aWriter, info);
     27 }
     28 
     29 bool ParamTraits<nsIPrincipal*>::Read(IPC::MessageReader* aReader,
     30                                      RefPtr<nsIPrincipal>* aResult) {
     31  mozilla::Maybe<mozilla::ipc::PrincipalInfo> info;
     32  if (!ReadParam(aReader, &info)) {
     33    return false;
     34  }
     35 
     36  if (info.isNothing()) {
     37    return true;
     38  }
     39 
     40  auto principalOrErr = PrincipalInfoToPrincipal(info.ref());
     41 
     42  if (NS_WARN_IF(principalOrErr.isErr())) {
     43    return false;
     44  }
     45 
     46  nsCOMPtr<nsIPrincipal> principal = principalOrErr.unwrap();
     47  *aResult = principal;
     48  return true;
     49 }
     50 
     51 }  // namespace IPC