netwerk/cache/nsCacheSession.cpp@97036ab72558 (annotated)
netwerk/cache/nsCacheSession.cpp
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| michael@0 | 2 | * |
| michael@0 | 3 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #include "nsCacheSession.h" |
| michael@0 | 8 | #include "nsCacheService.h" |
| michael@0 | 9 | #include "nsCRT.h" |
| michael@0 | 10 | #include "nsThreadUtils.h" |
| michael@0 | 11 | |
| michael@0 | 12 | NS_IMPL_ISUPPORTS(nsCacheSession, nsICacheSession) |
| michael@0 | 13 | |
| michael@0 | 14 | nsCacheSession::nsCacheSession(const char * clientID, |
| michael@0 | 15 | nsCacheStoragePolicy storagePolicy, |
| michael@0 | 16 | bool streamBased) |
| michael@0 | 17 | : mClientID(clientID), |
| michael@0 | 18 | mInfo(0) |
| michael@0 | 19 | { |
| michael@0 | 20 | SetStoragePolicy(storagePolicy); |
| michael@0 | 21 | |
| michael@0 | 22 | if (streamBased) MarkStreamBased(); |
| michael@0 | 23 | else SetStoragePolicy(nsICache::STORE_IN_MEMORY); |
| michael@0 | 24 | |
| michael@0 | 25 | MarkPublic(); |
| michael@0 | 26 | |
| michael@0 | 27 | MarkDoomEntriesIfExpired(); |
| michael@0 | 28 | } |
| michael@0 | 29 | |
| michael@0 | 30 | nsCacheSession::~nsCacheSession() |
| michael@0 | 31 | { |
| michael@0 | 32 | /* destructor code */ |
| michael@0 | 33 | // notify service we are going away? |
| michael@0 | 34 | } |
| michael@0 | 35 | |
| michael@0 | 36 | |
| michael@0 | 37 | NS_IMETHODIMP nsCacheSession::GetDoomEntriesIfExpired(bool *result) |
| michael@0 | 38 | { |
| michael@0 | 39 | NS_ENSURE_ARG_POINTER(result); |
| michael@0 | 40 | *result = WillDoomEntriesIfExpired(); |
| michael@0 | 41 | return NS_OK; |
| michael@0 | 42 | } |
| michael@0 | 43 | |
| michael@0 | 44 | |
| michael@0 | 45 | NS_IMETHODIMP nsCacheSession::SetProfileDirectory(nsIFile *profileDir) |
| michael@0 | 46 | { |
| michael@0 | 47 | if (StoragePolicy() != nsICache::STORE_OFFLINE && profileDir) { |
| michael@0 | 48 | // Profile directory override is currently implemented only for |
| michael@0 | 49 | // offline cache. This is an early failure to prevent the request |
| michael@0 | 50 | // being processed before it would fail later because of inability |
| michael@0 | 51 | // to assign a cache base dir. |
| michael@0 | 52 | return NS_ERROR_UNEXPECTED; |
| michael@0 | 53 | } |
| michael@0 | 54 | |
| michael@0 | 55 | mProfileDir = profileDir; |
| michael@0 | 56 | return NS_OK; |
| michael@0 | 57 | } |
| michael@0 | 58 | |
| michael@0 | 59 | NS_IMETHODIMP nsCacheSession::GetProfileDirectory(nsIFile **profileDir) |
| michael@0 | 60 | { |
| michael@0 | 61 | if (mProfileDir) |
| michael@0 | 62 | NS_ADDREF(*profileDir = mProfileDir); |
| michael@0 | 63 | else |
| michael@0 | 64 | *profileDir = nullptr; |
| michael@0 | 65 | |
| michael@0 | 66 | return NS_OK; |
| michael@0 | 67 | } |
| michael@0 | 68 | |
| michael@0 | 69 | |
| michael@0 | 70 | NS_IMETHODIMP nsCacheSession::SetDoomEntriesIfExpired(bool doomEntriesIfExpired) |
| michael@0 | 71 | { |
| michael@0 | 72 | if (doomEntriesIfExpired) MarkDoomEntriesIfExpired(); |
| michael@0 | 73 | else ClearDoomEntriesIfExpired(); |
| michael@0 | 74 | return NS_OK; |
| michael@0 | 75 | } |
| michael@0 | 76 | |
| michael@0 | 77 | |
| michael@0 | 78 | NS_IMETHODIMP |
| michael@0 | 79 | nsCacheSession::OpenCacheEntry(const nsACString & key, |
| michael@0 | 80 | nsCacheAccessMode accessRequested, |
| michael@0 | 81 | bool blockingMode, |
| michael@0 | 82 | nsICacheEntryDescriptor ** result) |
| michael@0 | 83 | { |
| michael@0 | 84 | nsresult rv; |
| michael@0 | 85 | |
| michael@0 | 86 | if (NS_IsMainThread()) |
| michael@0 | 87 | rv = NS_ERROR_NOT_AVAILABLE; |
| michael@0 | 88 | else |
| michael@0 | 89 | rv = nsCacheService::OpenCacheEntry(this, |
| michael@0 | 90 | key, |
| michael@0 | 91 | accessRequested, |
| michael@0 | 92 | blockingMode, |
| michael@0 | 93 | nullptr, // no listener |
| michael@0 | 94 | result); |
| michael@0 | 95 | return rv; |
| michael@0 | 96 | } |
| michael@0 | 97 | |
| michael@0 | 98 | |
| michael@0 | 99 | NS_IMETHODIMP nsCacheSession::AsyncOpenCacheEntry(const nsACString & key, |
| michael@0 | 100 | nsCacheAccessMode accessRequested, |
| michael@0 | 101 | nsICacheListener *listener, |
| michael@0 | 102 | bool noWait) |
| michael@0 | 103 | { |
| michael@0 | 104 | nsresult rv; |
| michael@0 | 105 | rv = nsCacheService::OpenCacheEntry(this, |
| michael@0 | 106 | key, |
| michael@0 | 107 | accessRequested, |
| michael@0 | 108 | !noWait, |
| michael@0 | 109 | listener, |
| michael@0 | 110 | nullptr); // no result |
| michael@0 | 111 | |
| michael@0 | 112 | if (rv == NS_ERROR_CACHE_WAIT_FOR_VALIDATION) rv = NS_OK; |
| michael@0 | 113 | return rv; |
| michael@0 | 114 | } |
| michael@0 | 115 | |
| michael@0 | 116 | NS_IMETHODIMP nsCacheSession::EvictEntries() |
| michael@0 | 117 | { |
| michael@0 | 118 | return nsCacheService::EvictEntriesForSession(this); |
| michael@0 | 119 | } |
| michael@0 | 120 | |
| michael@0 | 121 | |
| michael@0 | 122 | NS_IMETHODIMP nsCacheSession::IsStorageEnabled(bool *result) |
| michael@0 | 123 | { |
| michael@0 | 124 | |
| michael@0 | 125 | return nsCacheService::IsStorageEnabledForPolicy(StoragePolicy(), result); |
| michael@0 | 126 | } |
| michael@0 | 127 | |
| michael@0 | 128 | NS_IMETHODIMP nsCacheSession::DoomEntry(const nsACString &key, |
| michael@0 | 129 | nsICacheListener *listener) |
| michael@0 | 130 | { |
| michael@0 | 131 | return nsCacheService::DoomEntry(this, key, listener); |
| michael@0 | 132 | } |
| michael@0 | 133 | |
| michael@0 | 134 | NS_IMETHODIMP nsCacheSession::GetIsPrivate(bool* aPrivate) |
| michael@0 | 135 | { |
| michael@0 | 136 | *aPrivate = IsPrivate(); |
| michael@0 | 137 | return NS_OK; |
| michael@0 | 138 | } |
| michael@0 | 139 | |
| michael@0 | 140 | NS_IMETHODIMP nsCacheSession::SetIsPrivate(bool aPrivate) |
| michael@0 | 141 | { |
| michael@0 | 142 | if (aPrivate) |
| michael@0 | 143 | MarkPrivate(); |
| michael@0 | 144 | else |
| michael@0 | 145 | MarkPublic(); |
| michael@0 | 146 | return NS_OK; |
| michael@0 | 147 | } |
