1 files changed, 1037 insertions, 0 deletions
diff --git a/netwerk/cache2/OldWrappers.cpp b/netwerk/cache2/OldWrappers.cpp
new file mode 100644
index 0000000000..b96dc2ff29
--- /dev/null
+++ b/netwerk/cache2/OldWrappers.cpp
@@ -0,0 +1,1037 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Stuff to link the old imp to the new api - will go away!
+
+#include "CacheLog.h"
+#include "OldWrappers.h"
+#include "CacheStorage.h"
+#include "CacheStorageService.h"
+#include "LoadContextInfo.h"
+#include "nsCacheService.h"
+
+#include "nsIURI.h"
+#include "nsICacheSession.h"
+#include "nsIApplicationCache.h"
+#include "nsIApplicationCacheService.h"
+#include "nsIStreamTransportService.h"
+#include "nsIFile.h"
+#include "nsICacheEntryDoomCallback.h"
+#include "nsICacheListener.h"
+#include "nsICacheStorageVisitor.h"
+
+#include "nsServiceManagerUtils.h"
+#include "nsNetCID.h"
+#include "nsNetUtil.h"
+#include "nsProxyRelease.h"
+#include "mozilla/IntegerPrintfMacros.h"
+#include "mozilla/Telemetry.h"
+
+static NS_DEFINE_CID(kStreamTransportServiceCID, NS_STREAMTRANSPORTSERVICE_CID);
+
+static uint32_t const CHECK_MULTITHREADED =
+    nsICacheStorage::CHECK_MULTITHREADED;
+
+namespace mozilla {
+namespace net {
+
+namespace {
+
+// Fires the doom callback back on the main thread
+// after the cache I/O thread is looped.
+
+class DoomCallbackSynchronizer : public Runnable {
+ public:
+  explicit DoomCallbackSynchronizer(nsICacheEntryDoomCallback* cb)
+      : Runnable("net::DoomCallbackSynchronizer"), mCB(cb) {}
+  nsresult Dispatch();
+
+ private:
+  virtual ~DoomCallbackSynchronizer() = default;
+
+  NS_DECL_NSIRUNNABLE
+  nsCOMPtr<nsICacheEntryDoomCallback> mCB;
+};
+
+nsresult DoomCallbackSynchronizer::Dispatch() {
+  nsresult rv;
+
+  nsCOMPtr<nsICacheService> serv =
+      do_GetService(NS_CACHESERVICE_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIEventTarget> eventTarget;
+  rv = serv->GetCacheIOTarget(getter_AddRefs(eventTarget));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = eventTarget->Dispatch(this, NS_DISPATCH_NORMAL);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP DoomCallbackSynchronizer::Run() {
+  if (!NS_IsMainThread()) {
+    NS_DispatchToMainThread(this);
+  } else {
+    if (mCB) mCB->OnCacheEntryDoomed(NS_OK);
+  }
+  return NS_OK;
+}
+
+// Receives doom callback from the old API and forwards to the new API
+
+class DoomCallbackWrapper : public nsICacheListener {
+  NS_DECL_THREADSAFE_ISUPPORTS
+  NS_DECL_NSICACHELISTENER
+
+  explicit DoomCallbackWrapper(nsICacheEntryDoomCallback* cb) : mCB(cb) {}
+
+ private:
+  virtual ~DoomCallbackWrapper() = default;
+
+  nsCOMPtr<nsICacheEntryDoomCallback> mCB;
+};
+
+NS_IMPL_ISUPPORTS(DoomCallbackWrapper, nsICacheListener);
+
+NS_IMETHODIMP DoomCallbackWrapper::OnCacheEntryAvailable(
+    nsICacheEntryDescriptor* descriptor, nsCacheAccessMode accessGranted,
+    nsresult status) {
+  return NS_OK;
+}
+
+NS_IMETHODIMP DoomCallbackWrapper::OnCacheEntryDoomed(nsresult status) {
+  if (!mCB) return NS_ERROR_NULL_POINTER;
+
+  mCB->OnCacheEntryDoomed(status);
+  mCB = nullptr;
+  return NS_OK;
+}
+
+}  // namespace
+
+// _OldVisitCallbackWrapper
+// Receives visit callbacks from the old API and forwards it to the new API
+
+NS_IMPL_ISUPPORTS(_OldVisitCallbackWrapper, nsICacheVisitor)
+
+_OldVisitCallbackWrapper::~_OldVisitCallbackWrapper() {
+  if (!mHit) {
+    // The device has not been found, to not break the chain, simulate
+    // storage info callback.
+    mCB->OnCacheStorageInfo(0, 0, 0, nullptr);
+  }
+
+  if (mVisitEntries) {
+    mCB->OnCacheEntryVisitCompleted();
+  }
+}
+
+NS_IMETHODIMP _OldVisitCallbackWrapper::VisitDevice(
+    const char* deviceID, nsICacheDeviceInfo* deviceInfo, bool* _retval) {
+  if (!mCB) return NS_ERROR_NULL_POINTER;
+
+  *_retval = false;
+  if (strcmp(deviceID, mDeviceID)) {
+    // Not the device we want to visit
+    return NS_OK;
+  }
+
+  mHit = true;
+
+  nsresult rv;
+
+  uint32_t capacity;
+  rv = deviceInfo->GetMaximumSize(&capacity);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIFile> dir;
+  if (!strcmp(mDeviceID, "disk")) {
+    nsCacheService::GetDiskCacheDirectory(getter_AddRefs(dir));
+  } else if (!strcmp(mDeviceID, "offline")) {
+    nsCacheService::GetAppCacheDirectory(getter_AddRefs(dir));
+  }
+
+  if (mLoadInfo && mLoadInfo->IsAnonymous()) {
+    // Anonymous visiting reports 0, 0 since we cannot count that
+    // early the number of anon entries.
+    mCB->OnCacheStorageInfo(0, 0, capacity, dir);
+  } else {
+    // Non-anon visitor counts all non-anon + ALL ANON entries,
+    // there is no way to determine the number of entries when
+    // using the old cache APIs - there is no concept of anonymous
+    // storage.
+    uint32_t entryCount;
+    rv = deviceInfo->GetEntryCount(&entryCount);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    uint32_t totalSize;
+    rv = deviceInfo->GetTotalSize(&totalSize);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    mCB->OnCacheStorageInfo(entryCount, totalSize, capacity, dir);
+  }
+
+  *_retval = mVisitEntries;
+  return NS_OK;
+}
+
+NS_IMETHODIMP _OldVisitCallbackWrapper::VisitEntry(const char* deviceID,
+                                                   nsICacheEntryInfo* entryInfo,
+                                                   bool* _retval) {
+  MOZ_ASSERT(!strcmp(deviceID, mDeviceID));
+
+  nsresult rv;
+
+  *_retval = true;
+
+  // Read all informative properties from the entry.
+  nsAutoCString clientId;
+  rv = entryInfo->GetClientID(clientId);
+  if (NS_FAILED(rv)) return NS_OK;
+
+  if (mLoadInfo->IsPrivate() !=
+      StringBeginsWith(clientId, "HTTP-memory-only-PB"_ns)) {
+    return NS_OK;
+  }
+
+  nsAutoCString cacheKey, enhanceId;
+  rv = entryInfo->GetKey(cacheKey);
+  if (NS_FAILED(rv)) return NS_OK;
+
+  if (StringBeginsWith(cacheKey, "anon&"_ns)) {
+    if (!mLoadInfo->IsAnonymous()) return NS_OK;
+
+    cacheKey = Substring(cacheKey, 5, cacheKey.Length());
+  } else if (mLoadInfo->IsAnonymous()) {
+    return NS_OK;
+  }
+
+  if (StringBeginsWith(cacheKey, "id="_ns)) {
+    int32_t uriSpecEnd = cacheKey.Find("&uri=");
+    if (uriSpecEnd == kNotFound)  // Corrupted, ignore
+      return NS_OK;
+
+    enhanceId = Substring(cacheKey, 3, uriSpecEnd - 3);
+    cacheKey = Substring(cacheKey, uriSpecEnd + 1, cacheKey.Length());
+  }
+
+  if (StringBeginsWith(cacheKey, "uri="_ns)) {
+    cacheKey = Substring(cacheKey, 4, cacheKey.Length());
+  }
+
+  nsCOMPtr<nsIURI> uri;
+  // cacheKey is strip of any prefixes
+  rv = NS_NewURI(getter_AddRefs(uri), cacheKey);
+  if (NS_FAILED(rv)) return NS_OK;
+
+  uint32_t dataSize;
+  if (NS_FAILED(entryInfo->GetDataSize(&dataSize))) dataSize = 0;
+  int32_t fetchCount;
+  if (NS_FAILED(entryInfo->GetFetchCount(&fetchCount))) fetchCount = 0;
+  uint32_t expirationTime;
+  if (NS_FAILED(entryInfo->GetExpirationTime(&expirationTime)))
+    expirationTime = 0;
+  uint32_t lastModified;
+  if (NS_FAILED(entryInfo->GetLastModified(&lastModified))) lastModified = 0;
+
+  // Send them to the consumer.
+  rv = mCB->OnCacheEntryInfo(uri, enhanceId, (int64_t)dataSize, fetchCount,
+                             lastModified, expirationTime, false, mLoadInfo);
+
+  *_retval = NS_SUCCEEDED(rv);
+  return NS_OK;
+}
+
+// _OldGetDiskConsumption
+
+// static
+nsresult _OldGetDiskConsumption::Get(
+    nsICacheStorageConsumptionObserver* aCallback) {
+  nsresult rv;
+
+  nsCOMPtr<nsICacheService> serv =
+      do_GetService(NS_CACHESERVICE_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  RefPtr<_OldGetDiskConsumption> cb = new _OldGetDiskConsumption(aCallback);
+
+  // _OldGetDiskConsumption stores the found size value, but until dispatched
+  // to the main thread it doesn't call on the consupmtion observer. See bellow.
+  rv = serv->VisitEntries(cb);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // We are called from CacheStorageService::AsyncGetDiskConsumption whose IDL
+  // documentation claims the callback is always delievered asynchronously
+  // back to the main thread.  Despite we know the result synchronosusly when
+  // querying the old cache, we need to stand the word and dispatch the result
+  // to the main thread asynchronously.  Hence the dispatch here.
+  return NS_DispatchToMainThread(cb);
+}
+
+NS_IMPL_ISUPPORTS_INHERITED(_OldGetDiskConsumption, Runnable, nsICacheVisitor)
+
+_OldGetDiskConsumption::_OldGetDiskConsumption(
+    nsICacheStorageConsumptionObserver* aCallback)
+    : Runnable("net::_OldGetDiskConsumption"), mCallback(aCallback), mSize(0) {}
+
+NS_IMETHODIMP
+_OldGetDiskConsumption::Run() {
+  mCallback->OnNetworkCacheDiskConsumption(mSize);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+_OldGetDiskConsumption::VisitDevice(const char* deviceID,
+                                    nsICacheDeviceInfo* deviceInfo,
+                                    bool* _retval) {
+  if (!strcmp(deviceID, "disk")) {
+    uint32_t size;
+    nsresult rv = deviceInfo->GetTotalSize(&size);
+    if (NS_SUCCEEDED(rv)) mSize = (int64_t)size;
+  }
+
+  *_retval = false;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+_OldGetDiskConsumption::VisitEntry(const char* deviceID,
+                                   nsICacheEntryInfo* entryInfo,
+                                   bool* _retval) {
+  MOZ_CRASH("Unexpected");
+  return NS_OK;
+}
+
+// _OldCacheEntryWrapper
+
+_OldCacheEntryWrapper::_OldCacheEntryWrapper(nsICacheEntryDescriptor* desc)
+    : mOldDesc(desc), mOldInfo(desc), mCacheEntryId(CacheEntry::GetNextId()) {
+  LOG(("Creating _OldCacheEntryWrapper %p for descriptor %p", this, desc));
+}
+
+_OldCacheEntryWrapper::_OldCacheEntryWrapper(nsICacheEntryInfo* info)
+    : mOldDesc(nullptr),
+      mOldInfo(info),
+      mCacheEntryId(CacheEntry::GetNextId()) {
+  LOG(("Creating _OldCacheEntryWrapper %p for info %p", this, info));
+}
+
+_OldCacheEntryWrapper::~_OldCacheEntryWrapper() {
+  LOG(("Destroying _OldCacheEntryWrapper %p for descriptor %p", this,
+       mOldInfo.get()));
+}
+
+NS_IMETHODIMP _OldCacheEntryWrapper::GetIsForcedValid(bool* aIsForcedValid) {
+  // Unused stub
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP _OldCacheEntryWrapper::ForceValidFor(
+    uint32_t aSecondsToTheFuture) {
+  // Unused stub
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMPL_ISUPPORTS(_OldCacheEntryWrapper, nsICacheEntry)
+
+NS_IMETHODIMP _OldCacheEntryWrapper::AsyncDoom(
+    nsICacheEntryDoomCallback* listener) {
+  RefPtr<DoomCallbackWrapper> cb =
+      listener ? new DoomCallbackWrapper(listener) : nullptr;
+  return AsyncDoom(cb);
+}
+
+NS_IMETHODIMP _OldCacheEntryWrapper::GetDataSize(int64_t* aSize) {
+  uint32_t size;
+  nsresult rv = GetDataSize(&size);
+  if (NS_FAILED(rv)) return rv;
+
+  *aSize = size;
+  return NS_OK;
+}
+
+NS_IMETHODIMP _OldCacheEntryWrapper::GetAltDataSize(int64_t* aSize) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP _OldCacheEntryWrapper::GetAltDataType(nsACString& aType) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP _OldCacheEntryWrapper::GetPersistent(bool* aPersistToDisk) {
+  if (!mOldDesc) {
+    return NS_ERROR_NULL_POINTER;
+  }
+
+  nsresult rv;
+
+  nsCacheStoragePolicy policy;
+  rv = mOldDesc->GetStoragePolicy(&policy);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  *aPersistToDisk = policy != nsICache::STORE_IN_MEMORY;
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP _OldCacheEntryWrapper::Recreate(bool aMemoryOnly,
+                                              nsICacheEntry** aResult) {
+  NS_ENSURE_TRUE(mOldDesc, NS_ERROR_NOT_AVAILABLE);
+
+  nsCacheAccessMode mode;
+  nsresult rv = mOldDesc->GetAccessGranted(&mode);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  if (!(mode & nsICache::ACCESS_WRITE)) return NS_ERROR_NOT_AVAILABLE;
+
+  LOG(("_OldCacheEntryWrapper::Recreate [this=%p]", this));
+
+  if (aMemoryOnly) mOldDesc->SetStoragePolicy(nsICache::STORE_IN_MEMORY);
+
+  nsCOMPtr<nsICacheEntry> self(this);
+  self.forget(aResult);
+  return NS_OK;
+}
+
+NS_IMETHODIMP _OldCacheEntryWrapper::OpenInputStream(int64_t offset,
+                                                     nsIInputStream** _retval) {
+  if (offset > PR_UINT32_MAX) return NS_ERROR_INVALID_ARG;
+
+  return OpenInputStream(uint32_t(offset), _retval);
+}
+NS_IMETHODIMP _OldCacheEntryWrapper::OpenOutputStream(
+    int64_t offset, int64_t predictedSize, nsIOutputStream** _retval) {
+  if (offset > PR_UINT32_MAX) return NS_ERROR_INVALID_ARG;
+
+  return OpenOutputStream(uint32_t(offset), _retval);
+}
+
+NS_IMETHODIMP _OldCacheEntryWrapper::MaybeMarkValid() {
+  LOG(("_OldCacheEntryWrapper::MaybeMarkValid [this=%p]", this));
+
+  NS_ENSURE_TRUE(mOldDesc, NS_ERROR_NULL_POINTER);
+
+  nsCacheAccessMode mode;
+  nsresult rv = mOldDesc->GetAccessGranted(&mode);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  if (mode & nsICache::ACCESS_WRITE) {
+    LOG(("Marking cache entry valid [entry=%p, descr=%p]", this, mOldDesc));
+    return mOldDesc->MarkValid();
+  }
+
+  LOG(("Not marking read-only cache entry valid [entry=%p, descr=%p]", this,
+       mOldDesc));
+  return NS_OK;
+}
+
+NS_IMETHODIMP _OldCacheEntryWrapper::HasWriteAccess(bool aWriteAllowed_unused,
+                                                    bool* aWriteAccess) {
+  NS_ENSURE_TRUE(mOldDesc, NS_ERROR_NULL_POINTER);
+  NS_ENSURE_ARG(aWriteAccess);
+
+  nsCacheAccessMode mode;
+  nsresult rv = mOldDesc->GetAccessGranted(&mode);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  *aWriteAccess = !!(mode & nsICache::ACCESS_WRITE);
+
+  LOG(("_OldCacheEntryWrapper::HasWriteAccess [this=%p, write-access=%d]", this,
+       *aWriteAccess));
+
+  return NS_OK;
+}
+
+namespace {
+
+class MetaDataVisitorWrapper : public nsICacheMetaDataVisitor {
+  virtual ~MetaDataVisitorWrapper() = default;
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICACHEMETADATAVISITOR
+  explicit MetaDataVisitorWrapper(nsICacheEntryMetaDataVisitor* cb) : mCB(cb) {}
+  nsCOMPtr<nsICacheEntryMetaDataVisitor> mCB;
+};
+
+NS_IMPL_ISUPPORTS(MetaDataVisitorWrapper, nsICacheMetaDataVisitor)
+
+NS_IMETHODIMP
+MetaDataVisitorWrapper::VisitMetaDataElement(char const* key, char const* value,
+                                             bool* goon) {
+  *goon = true;
+  return mCB->OnMetaDataElement(key, value);
+}
+
+}  // namespace
+
+NS_IMETHODIMP _OldCacheEntryWrapper::VisitMetaData(
+    nsICacheEntryMetaDataVisitor* cb) {
+  RefPtr<MetaDataVisitorWrapper> w = new MetaDataVisitorWrapper(cb);
+  return mOldDesc->VisitMetaData(w);
+}
+
+namespace {
+
+void GetCacheSessionNameForStoragePolicy(const nsACString& scheme,
+                                         nsCacheStoragePolicy storagePolicy,
+                                         bool isPrivate,
+                                         OriginAttributes const* originAttribs,
+                                         nsACString& sessionName) {
+  MOZ_ASSERT(!isPrivate || storagePolicy == nsICache::STORE_IN_MEMORY);
+
+  // HTTP
+  if (scheme.EqualsLiteral("http") || scheme.EqualsLiteral("https")) {
+    switch (storagePolicy) {
+      case nsICache::STORE_IN_MEMORY:
+        if (isPrivate)
+          sessionName.AssignLiteral("HTTP-memory-only-PB");
+        else
+          sessionName.AssignLiteral("HTTP-memory-only");
+        break;
+      case nsICache::STORE_OFFLINE:
+        // XXX This is actually never used, only added to prevent
+        // any compatibility damage.
+        sessionName.AssignLiteral("HTTP-offline");
+        break;
+      default:
+        sessionName.AssignLiteral("HTTP");
+        break;
+    }
+  }
+  // FTP
+  else if (scheme.EqualsLiteral("ftp")) {
+    if (isPrivate)
+      sessionName.AssignLiteral("FTP-private");
+    else
+      sessionName.AssignLiteral("FTP");
+  }
+  // all remaining URL scheme
+  else {
+    // Since with the new API a consumer cannot specify its own session name
+    // and partitioning of the cache is handled stricly only by the cache
+    // back-end internally, we will use a separate session name to pretend
+    // functionality of the new API wrapping the Darin's cache for all other
+    // URL schemes.
+    // Deliberately omitting |anonymous| since other session types don't
+    // recognize it too.
+    sessionName.AssignLiteral("other");
+    if (isPrivate) sessionName.AppendLiteral("-private");
+  }
+
+  nsAutoCString suffix;
+  originAttribs->CreateSuffix(suffix);
+  sessionName.Append(suffix);
+}
+
+nsresult GetCacheSession(const nsACString& aScheme, bool aWriteToDisk,
+                         nsILoadContextInfo* aLoadInfo,
+                         nsIApplicationCache* aAppCache,
+                         nsICacheSession** _result) {
+  nsresult rv;
+
+  nsCacheStoragePolicy storagePolicy;
+  if (aAppCache)
+    storagePolicy = nsICache::STORE_OFFLINE;
+  else if (!aWriteToDisk || aLoadInfo->IsPrivate())
+    storagePolicy = nsICache::STORE_IN_MEMORY;
+  else
+    storagePolicy = nsICache::STORE_ANYWHERE;
+
+  nsAutoCString clientId;
+  if (aAppCache) {
+    aAppCache->GetClientID(clientId);
+  } else {
+    GetCacheSessionNameForStoragePolicy(
+        aScheme, storagePolicy, aLoadInfo->IsPrivate(),
+        aLoadInfo->OriginAttributesPtr(), clientId);
+  }
+
+  LOG(("  GetCacheSession for client=%s, policy=%d", clientId.get(),
+       storagePolicy));
+
+  nsCOMPtr<nsICacheService> serv =
+      do_GetService(NS_CACHESERVICE_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsICacheSession> session;
+  rv = nsCacheService::GlobalInstance()->CreateSessionInternal(
+      clientId.get(), storagePolicy, nsICache::STREAM_BASED,
+      getter_AddRefs(session));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = session->SetIsPrivate(aLoadInfo->IsPrivate());
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = session->SetDoomEntriesIfExpired(false);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  if (aAppCache) {
+    nsCOMPtr<nsIFile> profileDirectory;
+    aAppCache->GetProfileDirectory(getter_AddRefs(profileDirectory));
+    if (profileDirectory) rv = session->SetProfileDirectory(profileDirectory);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  session.forget(_result);
+  return NS_OK;
+}
+
+}  // namespace
+
+NS_IMPL_ISUPPORTS_INHERITED(_OldCacheLoad, Runnable, nsICacheListener)
+
+_OldCacheLoad::_OldCacheLoad(const nsACString& aScheme,
+                             const nsACString& aCacheKey,
+                             nsICacheEntryOpenCallback* aCallback,
+                             nsIApplicationCache* aAppCache,
+                             nsILoadContextInfo* aLoadInfo, bool aWriteToDisk,
+                             uint32_t aFlags)
+    : Runnable("net::_OldCacheLoad"),
+      mScheme(aScheme),
+      mCacheKey(aCacheKey),
+      mCallback(aCallback),
+      mLoadInfo(GetLoadContextInfo(aLoadInfo)),
+      mFlags(aFlags),
+      mWriteToDisk(aWriteToDisk),
+      mNew(true),
+      mOpening(true),
+      mSync(false),
+      mStatus(NS_ERROR_UNEXPECTED),
+      mRunCount(0),
+      mAppCache(aAppCache) {}
+
+_OldCacheLoad::~_OldCacheLoad() {
+  ProxyReleaseMainThread("_OldCacheLoad::mAppCache", mAppCache);
+}
+
+nsresult _OldCacheLoad::Start() {
+  LOG(("_OldCacheLoad::Start [this=%p, key=%s]", this, mCacheKey.get()));
+
+  mLoadStart = mozilla::TimeStamp::Now();
+
+  nsresult rv;
+
+  // Consumers that can invoke this code as first and off the main thread
+  // are responsible for initiating these two services on the main thread.
+  // Currently no one does that.
+
+  // XXX: Start the cache service; otherwise DispatchToCacheIOThread will
+  // fail.
+  nsCOMPtr<nsICacheService> service =
+      do_GetService(NS_CACHESERVICE_CONTRACTID, &rv);
+
+  // Ensure the stream transport service gets initialized on the main thread
+  if (NS_SUCCEEDED(rv) && NS_IsMainThread()) {
+    nsCOMPtr<nsIStreamTransportService> sts =
+        do_GetService(kStreamTransportServiceCID, &rv);
+  }
+
+  if (NS_SUCCEEDED(rv)) {
+    rv = service->GetCacheIOTarget(getter_AddRefs(mCacheThread));
+  }
+
+  if (NS_SUCCEEDED(rv)) {
+    bool onCacheTarget;
+    rv = mCacheThread->IsOnCurrentThread(&onCacheTarget);
+    if (NS_SUCCEEDED(rv) && onCacheTarget) {
+      mSync = true;
+    }
+  }
+
+  if (NS_SUCCEEDED(rv)) {
+    if (mSync) {
+      rv = Run();
+    } else {
+      rv = mCacheThread->Dispatch(this, NS_DISPATCH_NORMAL);
+    }
+  }
+
+  return rv;
+}
+
+NS_IMETHODIMP
+_OldCacheLoad::Run() {
+  LOG(("_OldCacheLoad::Run [this=%p, key=%s, cb=%p]", this, mCacheKey.get(),
+       mCallback.get()));
+
+  nsresult rv;
+
+  if (mOpening) {
+    mOpening = false;
+    nsCOMPtr<nsICacheSession> session;
+    rv = GetCacheSession(mScheme, mWriteToDisk, mLoadInfo, mAppCache,
+                         getter_AddRefs(session));
+    if (NS_SUCCEEDED(rv)) {
+      // AsyncOpenCacheEntry isn't really async when its called on the
+      // cache service thread.
+
+      nsCacheAccessMode cacheAccess;
+      if (mFlags & nsICacheStorage::OPEN_TRUNCATE)
+        cacheAccess = nsICache::ACCESS_WRITE;
+      else if ((mFlags & nsICacheStorage::OPEN_READONLY) || mAppCache)
+        cacheAccess = nsICache::ACCESS_READ;
+      else
+        cacheAccess = nsICache::ACCESS_READ_WRITE;
+
+      LOG(("  session->AsyncOpenCacheEntry with access=%d", cacheAccess));
+
+      bool bypassBusy = mFlags & nsICacheStorage::OPEN_BYPASS_IF_BUSY;
+
+      if (mSync && cacheAccess == nsICache::ACCESS_WRITE) {
+        nsCOMPtr<nsICacheEntryDescriptor> entry;
+        rv = session->OpenCacheEntry(mCacheKey, cacheAccess, bypassBusy,
+                                     getter_AddRefs(entry));
+
+        nsCacheAccessMode grantedAccess = 0;
+        if (NS_SUCCEEDED(rv)) {
+          entry->GetAccessGranted(&grantedAccess);
+        }
+
+        return OnCacheEntryAvailable(entry, grantedAccess, rv);
+      }
+
+      rv = session->AsyncOpenCacheEntry(mCacheKey, cacheAccess, this,
+                                        bypassBusy);
+      if (NS_SUCCEEDED(rv)) return NS_OK;
+    }
+
+    // Opening failed, propagate the error to the consumer
+    LOG(("  Opening cache entry failed with rv=0x%08" PRIx32,
+         static_cast<uint32_t>(rv)));
+    mStatus = rv;
+    mNew = false;
+    NS_DispatchToMainThread(this);
+  } else {
+    if (!mCallback) {
+      LOG(("  duplicate call, bypassed"));
+      return NS_OK;
+    }
+
+    if (NS_SUCCEEDED(mStatus)) {
+      if (mFlags & nsICacheStorage::OPEN_TRUNCATE) {
+        mozilla::Telemetry::AccumulateTimeDelta(
+            mozilla::Telemetry::NETWORK_CACHE_V1_TRUNCATE_TIME_MS, mLoadStart);
+      } else if (mNew) {
+        mozilla::Telemetry::AccumulateTimeDelta(
+            mozilla::Telemetry::NETWORK_CACHE_V1_MISS_TIME_MS, mLoadStart);
+      } else {
+        mozilla::Telemetry::AccumulateTimeDelta(
+            mozilla::Telemetry::NETWORK_CACHE_V1_HIT_TIME_MS, mLoadStart);
+      }
+    }
+
+    if (!(mFlags & CHECK_MULTITHREADED)) Check();
+
+    // break cycles
+    nsCOMPtr<nsICacheEntryOpenCallback> cb = std::move(mCallback);
+    mCacheThread = nullptr;
+    nsCOMPtr<nsICacheEntry> entry = std::move(mCacheEntry);
+
+    rv = cb->OnCacheEntryAvailable(entry, mNew, mAppCache, mStatus);
+
+    if (NS_FAILED(rv) && entry) {
+      LOG(("  cb->OnCacheEntryAvailable failed with rv=0x%08" PRIx32,
+           static_cast<uint32_t>(rv)));
+      if (mNew)
+        entry->AsyncDoom(nullptr);
+      else
+        entry->Close();
+    }
+  }
+
+  return rv;
+}
+
+NS_IMETHODIMP
+_OldCacheLoad::OnCacheEntryAvailable(nsICacheEntryDescriptor* entry,
+                                     nsCacheAccessMode access,
+                                     nsresult status) {
+  LOG(
+      ("_OldCacheLoad::OnCacheEntryAvailable [this=%p, ent=%p, cb=%p, "
+       "appcache=%p, access=%x]",
+       this, entry, mCallback.get(), mAppCache.get(), access));
+
+  // XXX Bug 759805: Sometimes we will call this method directly from
+  // HttpCacheQuery::Run when AsyncOpenCacheEntry fails, but
+  // AsyncOpenCacheEntry will also call this method. As a workaround, we just
+  // ensure we only execute this code once.
+  NS_ENSURE_TRUE(mRunCount == 0, NS_ERROR_UNEXPECTED);
+  ++mRunCount;
+
+  mCacheEntry = entry ? new _OldCacheEntryWrapper(entry) : nullptr;
+  mStatus = status;
+  mNew = access == nsICache::ACCESS_WRITE;
+
+  if (mFlags & CHECK_MULTITHREADED) Check();
+
+  if (mSync) return Run();
+
+  return NS_DispatchToMainThread(this);
+}
+
+void _OldCacheLoad::Check() {
+  if (!mCacheEntry) return;
+
+  if (mNew) return;
+
+  uint32_t result;
+  nsresult rv = mCallback->OnCacheEntryCheck(mCacheEntry, mAppCache, &result);
+  LOG(("  OnCacheEntryCheck result ent=%p, cb=%p, appcache=%p, rv=0x%08" PRIx32
+       ", result=%d",
+       mCacheEntry.get(), mCallback.get(), mAppCache.get(),
+       static_cast<uint32_t>(rv), result));
+
+  if (NS_FAILED(rv)) {
+    NS_WARNING("cache check failed");
+  }
+
+  if (NS_FAILED(rv) || result == nsICacheEntryOpenCallback::ENTRY_NOT_WANTED) {
+    mCacheEntry->Close();
+    mCacheEntry = nullptr;
+    mStatus = NS_ERROR_CACHE_KEY_NOT_FOUND;
+  }
+}
+
+NS_IMETHODIMP
+_OldCacheLoad::OnCacheEntryDoomed(nsresult) { return NS_ERROR_NOT_IMPLEMENTED; }
+
+// nsICacheStorage old cache wrapper
+
+NS_IMPL_ISUPPORTS(_OldStorage, nsICacheStorage)
+
+_OldStorage::_OldStorage(nsILoadContextInfo* aInfo, bool aAllowDisk,
+                         bool aLookupAppCache, bool aOfflineStorage,
+                         nsIApplicationCache* aAppCache)
+    : mLoadInfo(GetLoadContextInfo(aInfo)),
+      mAppCache(aAppCache),
+      mWriteToDisk(aAllowDisk),
+      mLookupAppCache(aLookupAppCache),
+      mOfflineStorage(aOfflineStorage) {}
+
+_OldStorage::~_OldStorage() = default;
+
+NS_IMETHODIMP _OldStorage::AsyncOpenURI(nsIURI* aURI,
+                                        const nsACString& aIdExtension,
+                                        uint32_t aFlags,
+                                        nsICacheEntryOpenCallback* aCallback) {
+  NS_ENSURE_ARG(aURI);
+  NS_ENSURE_ARG(aCallback);
+
+#ifdef MOZ_LOGGING
+  nsAutoCString uriSpec;
+  aURI->GetAsciiSpec(uriSpec);
+  LOG(("_OldStorage::AsyncOpenURI [this=%p, uri=%s, ide=%s, flags=%x]", this,
+       uriSpec.get(), aIdExtension.BeginReading(), aFlags));
+#endif
+
+  nsresult rv;
+
+  nsAutoCString cacheKey, scheme;
+  rv = AssembleCacheKey(aURI, aIdExtension, cacheKey, scheme);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  if (!mAppCache && (mLookupAppCache || mOfflineStorage)) {
+    rv = ChooseApplicationCache(cacheKey, getter_AddRefs(mAppCache));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    if (mAppCache) {
+      // From a chosen appcache open only as readonly
+      aFlags &= ~nsICacheStorage::OPEN_TRUNCATE;
+    }
+  }
+
+  RefPtr<_OldCacheLoad> cacheLoad = new _OldCacheLoad(
+      scheme, cacheKey, aCallback, mAppCache, mLoadInfo, mWriteToDisk, aFlags);
+
+  rv = cacheLoad->Start();
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP _OldStorage::OpenTruncate(nsIURI* aURI,
+                                        const nsACString& aIdExtension,
+                                        nsICacheEntry** aCacheEntry) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP _OldStorage::Exists(nsIURI* aURI, const nsACString& aIdExtension,
+                                  bool* aResult) {
+  return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP _OldStorage::AsyncDoomURI(nsIURI* aURI,
+                                        const nsACString& aIdExtension,
+                                        nsICacheEntryDoomCallback* aCallback) {
+  LOG(("_OldStorage::AsyncDoomURI"));
+
+  nsresult rv;
+
+  nsAutoCString cacheKey, scheme;
+  rv = AssembleCacheKey(aURI, aIdExtension, cacheKey, scheme);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsICacheSession> session;
+  rv = GetCacheSession(scheme, mWriteToDisk, mLoadInfo, mAppCache,
+                       getter_AddRefs(session));
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  RefPtr<DoomCallbackWrapper> cb =
+      aCallback ? new DoomCallbackWrapper(aCallback) : nullptr;
+  rv = session->DoomEntry(cacheKey, cb);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP _OldStorage::AsyncEvictStorage(
+    nsICacheEntryDoomCallback* aCallback) {
+  LOG(("_OldStorage::AsyncEvictStorage"));
+
+  nsresult rv;
+
+  if (!mAppCache && mOfflineStorage) {
+    nsCOMPtr<nsIApplicationCacheService> appCacheService =
+        do_GetService(NS_APPLICATIONCACHESERVICE_CONTRACTID, &rv);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    rv = appCacheService->Evict(mLoadInfo);
+    NS_ENSURE_SUCCESS(rv, rv);
+  } else if (mAppCache) {
+    nsCOMPtr<nsICacheSession> session;
+    rv = GetCacheSession(""_ns, mWriteToDisk, mLoadInfo, mAppCache,
+                         getter_AddRefs(session));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    rv = session->EvictEntries();
+    NS_ENSURE_SUCCESS(rv, rv);
+  } else {
+    // Oh, I'll be so happy when session names are gone...
+    nsCOMPtr<nsICacheSession> session;
+    rv = GetCacheSession("http"_ns, mWriteToDisk, mLoadInfo, mAppCache,
+                         getter_AddRefs(session));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    rv = session->EvictEntries();
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    // This clears any data from schemes other than http or ftp.
+    rv = GetCacheSession(""_ns, mWriteToDisk, mLoadInfo, mAppCache,
+                         getter_AddRefs(session));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    rv = session->EvictEntries();
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  if (aCallback) {
+    RefPtr<DoomCallbackSynchronizer> sync =
+        new DoomCallbackSynchronizer(aCallback);
+    rv = sync->Dispatch();
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP _OldStorage::AsyncVisitStorage(nsICacheStorageVisitor* aVisitor,
+                                             bool aVisitEntries) {
+  LOG(("_OldStorage::AsyncVisitStorage"));
+
+  NS_ENSURE_ARG(aVisitor);
+
+  nsresult rv;
+
+  nsCOMPtr<nsICacheService> serv =
+      do_GetService(NS_CACHESERVICE_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  char* deviceID;
+  if (mAppCache || mOfflineStorage) {
+    deviceID = const_cast<char*>("offline");
+  } else if (!mWriteToDisk || mLoadInfo->IsPrivate()) {
+    deviceID = const_cast<char*>("memory");
+  } else {
+    deviceID = const_cast<char*>("disk");
+  }
+
+  RefPtr<_OldVisitCallbackWrapper> cb = new _OldVisitCallbackWrapper(
+      deviceID, aVisitor, aVisitEntries, mLoadInfo);
+  rv = nsCacheService::GlobalInstance()->VisitEntriesInternal(cb);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP _OldStorage::GetCacheIndexEntryAttrs(
+    nsIURI* aURI, const nsACString& aIdExtension, bool* aHasAltData,
+    uint32_t* aSizeInKB) {
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+// Internal
+
+nsresult _OldStorage::AssembleCacheKey(nsIURI* aURI,
+                                       nsACString const& aIdExtension,
+                                       nsACString& aCacheKey,
+                                       nsACString& aScheme) {
+  // Copied from nsHttpChannel::AssembleCacheKey
+
+  aCacheKey.Truncate();
+
+  nsresult rv;
+
+  rv = aURI->GetScheme(aScheme);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsAutoCString uriSpec;
+  if (aScheme.EqualsLiteral("http") || aScheme.EqualsLiteral("https")) {
+    if (mLoadInfo->IsAnonymous()) {
+      aCacheKey.AssignLiteral("anon&");
+    }
+
+    if (!aIdExtension.IsEmpty()) {
+      aCacheKey.AppendPrintf("id=%s&", aIdExtension.BeginReading());
+    }
+
+    nsCOMPtr<nsIURI> noRefURI;
+    rv = NS_GetURIWithoutRef(aURI, getter_AddRefs(noRefURI));
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    rv = noRefURI->GetAsciiSpec(uriSpec);
+    NS_ENSURE_SUCCESS(rv, rv);
+
+    if (!aCacheKey.IsEmpty()) {
+      aCacheKey.AppendLiteral("uri=");
+    }
+  } else {
+    rv = aURI->GetAsciiSpec(uriSpec);
+    NS_ENSURE_SUCCESS(rv, rv);
+  }
+
+  aCacheKey.Append(uriSpec);
+
+  return NS_OK;
+}
+
+nsresult _OldStorage::ChooseApplicationCache(const nsACString& cacheKey,
+                                             nsIApplicationCache** aCache) {
+  nsresult rv;
+
+  nsCOMPtr<nsIApplicationCacheService> appCacheService =
+      do_GetService(NS_APPLICATIONCACHESERVICE_CONTRACTID, &rv);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  rv = appCacheService->ChooseApplicationCache(cacheKey, mLoadInfo, aCache);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  return NS_OK;
+}
+
+}  // namespace net
+}  // namespace mozilla