dom/cache/CacheStorageParent.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 "mozilla/dom/cache/CacheStorageParent.h"
   8
   9 #include "mozilla/Unused.h"
  10 #include "mozilla/dom/cache/ActorUtils.h"
  11 #include "mozilla/dom/cache/CacheOpParent.h"
  12 #include "mozilla/dom/cache/ManagerId.h"
  13 #include "mozilla/dom/quota/QuotaManager.h"
  14 #include "mozilla/ipc/PBackgroundParent.h"
  15
  16 namespace mozilla::dom::cache {
  17
  18 using mozilla::dom::quota::QuotaManager;
  19 using mozilla::ipc::PBackgroundParent;
  20 using mozilla::ipc::PrincipalInfo;
  21
  22 // declared in ActorUtils.h
  23 PCacheStorageParent* AllocPCacheStorageParent(
  24     PBackgroundParent* aManagingActor, Namespace aNamespace,
  25     const mozilla::ipc::PrincipalInfo& aPrincipalInfo) {
  26   if (NS_WARN_IF(!QuotaManager::IsPrincipalInfoValid(aPrincipalInfo))) {
  27     MOZ_ASSERT(false);
  28     return nullptr;
  29   }
  30
  31   return new CacheStorageParent(aManagingActor, aNamespace, aPrincipalInfo);
  32 }
  33
  34 // declared in ActorUtils.h
  35 void DeallocPCacheStorageParent(PCacheStorageParent* aActor) { delete aActor; }
  36
  37 CacheStorageParent::CacheStorageParent(PBackgroundParent* aManagingActor,
  38                                        Namespace aNamespace,
  39                                        const PrincipalInfo& aPrincipalInfo)
  40     : mNamespace(aNamespace), mVerifiedStatus(NS_OK) {
  41   MOZ_COUNT_CTOR(cache::CacheStorageParent);
  42   MOZ_DIAGNOSTIC_ASSERT(aManagingActor);
  43
  44   // Start the async principal verification process immediately.
  45   mVerifier = PrincipalVerifier::CreateAndDispatch(*this, aManagingActor,
  46                                                    aPrincipalInfo);
  47   MOZ_DIAGNOSTIC_ASSERT(mVerifier);
  48 }
  49
  50 CacheStorageParent::~CacheStorageParent() {
  51   MOZ_COUNT_DTOR(cache::CacheStorageParent);
  52   MOZ_DIAGNOSTIC_ASSERT(!mVerifier);
  53 }
  54
  55 void CacheStorageParent::ActorDestroy(ActorDestroyReason aReason) {
  56   if (mVerifier) {
  57     mVerifier->RemoveListener(*this);
  58     mVerifier = nullptr;
  59   }
  60 }
  61
  62 PCacheOpParent* CacheStorageParent::AllocPCacheOpParent(
  63     const CacheOpArgs& aOpArgs) {
  64   if (aOpArgs.type() != CacheOpArgs::TStorageMatchArgs &&
  65       aOpArgs.type() != CacheOpArgs::TStorageHasArgs &&
  66       aOpArgs.type() != CacheOpArgs::TStorageOpenArgs &&
  67       aOpArgs.type() != CacheOpArgs::TStorageDeleteArgs &&
  68       aOpArgs.type() != CacheOpArgs::TStorageKeysArgs) {
  69     MOZ_CRASH("Invalid operation sent to CacheStorage actor!");
  70   }
  71
  72   return new CacheOpParent(Manager(), mNamespace, aOpArgs);
  73 }
  74
  75 bool CacheStorageParent::DeallocPCacheOpParent(PCacheOpParent* aActor) {
  76   delete aActor;
  77   return true;
  78 }
  79
  80 mozilla::ipc::IPCResult CacheStorageParent::RecvPCacheOpConstructor(
  81     PCacheOpParent* aActor, const CacheOpArgs& aOpArgs) {
  82   auto actor = static_cast<CacheOpParent*>(aActor);
  83
  84   if (mVerifier) {
  85     MOZ_DIAGNOSTIC_ASSERT(!mManagerId);
  86     actor->WaitForVerification(mVerifier);
  87     return IPC_OK();
  88   }
  89
  90   if (NS_WARN_IF(NS_FAILED(mVerifiedStatus))) {
  91     ErrorResult result(mVerifiedStatus);
  92     Unused << CacheOpParent::Send__delete__(actor, std::move(result), void_t());
  93     return IPC_OK();
  94   }
  95
  96   MOZ_DIAGNOSTIC_ASSERT(mManagerId);
  97   actor->Execute(mManagerId);
  98   return IPC_OK();
  99 }
 100
 101 mozilla::ipc::IPCResult CacheStorageParent::RecvTeardown() {
 102   if (!Send__delete__(this)) {
 103     // child process is gone, warn and allow actor to clean up normally
 104     NS_WARNING("CacheStorage failed to delete actor.");
 105   }
 106   return IPC_OK();
 107 }
 108
 109 void CacheStorageParent::OnPrincipalVerified(
 110     nsresult aRv, const SafeRefPtr<ManagerId>& aManagerId) {
 111   MOZ_DIAGNOSTIC_ASSERT(mVerifier);
 112   MOZ_DIAGNOSTIC_ASSERT(!mManagerId);
 113   MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(mVerifiedStatus));
 114
 115   if (NS_WARN_IF(NS_FAILED(aRv))) {
 116     mVerifiedStatus = aRv;
 117   }
 118
 119   mManagerId = aManagerId.clonePtr();
 120   mVerifier->RemoveListener(*this);
 121   mVerifier = nullptr;
 122 }
 123
 124 }  // namespace mozilla::dom::cache