Tue, 06 Jan 2015 21:39:09 +0100
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 | |
michael@0 | 8 | #include "nspr.h" |
michael@0 | 9 | #include "nscore.h" |
michael@0 | 10 | #include "nsError.h" |
michael@0 | 11 | #include "nsIServiceManager.h" |
michael@0 | 12 | #include "nsNetCID.h" |
michael@0 | 13 | #include "nsICache.h" |
michael@0 | 14 | #include "nsICacheService.h" |
michael@0 | 15 | #include "nsICacheSession.h" |
michael@0 | 16 | #include "nsICacheEntryDescriptor.h" |
michael@0 | 17 | #include "nsICacheListener.h" |
michael@0 | 18 | #include "nsIDNSService.h" |
michael@0 | 19 | #include "nsXPCOM.h" |
michael@0 | 20 | #include "nsISupportsPrimitives.h" |
michael@0 | 21 | #include "nsSupportsPrimitives.h" |
michael@0 | 22 | #include "nsIEventQueueService.h" |
michael@0 | 23 | |
michael@0 | 24 | |
michael@0 | 25 | static NS_DEFINE_CID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID); |
michael@0 | 26 | static NS_DEFINE_CID(kCacheServiceCID, NS_CACHESERVICE_CID); |
michael@0 | 27 | |
michael@0 | 28 | nsCOMPtr<nsIEventQueue> gEventQ; |
michael@0 | 29 | nsCOMPtr<nsICacheService> gCacheService; |
michael@0 | 30 | |
michael@0 | 31 | class AsyncCacheRequest |
michael@0 | 32 | { |
michael@0 | 33 | public: |
michael@0 | 34 | AsyncCacheRequest(const char * key); |
michael@0 | 35 | ~AsyncCacheRequest(); |
michael@0 | 36 | |
michael@0 | 37 | const char * mKey; |
michael@0 | 38 | }; |
michael@0 | 39 | |
michael@0 | 40 | |
michael@0 | 41 | nsresult |
michael@0 | 42 | MakeCacheSession(const char * clientID, nsICacheSession **session) |
michael@0 | 43 | { |
michael@0 | 44 | nsresult rv; |
michael@0 | 45 | |
michael@0 | 46 | if (!gCacheService) { |
michael@0 | 47 | // nsCOMPtr<nsICacheService> cacheService = |
michael@0 | 48 | // do_GetService(kCacheServiceCID, &rv); |
michael@0 | 49 | gCacheService = do_GetService(kCacheServiceCID, &rv); |
michael@0 | 50 | if (NS_FAILED(rv) || !gCacheService) { |
michael@0 | 51 | printf("do_GetService(kCacheServiceCID) failed : %x\n", rv); |
michael@0 | 52 | goto error_exit; |
michael@0 | 53 | } |
michael@0 | 54 | } |
michael@0 | 55 | |
michael@0 | 56 | rv = gCacheService->CreateSession(clientID, |
michael@0 | 57 | nsICache::STORE_IN_MEMORY, |
michael@0 | 58 | nsICache::NOT_STREAM_BASED, |
michael@0 | 59 | session); |
michael@0 | 60 | if (NS_FAILED(rv)) |
michael@0 | 61 | printf("nsCacheService::CreateSession() failed : %x\n", rv); |
michael@0 | 62 | |
michael@0 | 63 | error_exit: |
michael@0 | 64 | return rv; |
michael@0 | 65 | } |
michael@0 | 66 | |
michael@0 | 67 | |
michael@0 | 68 | void |
michael@0 | 69 | TestMemoryObjectCache() |
michael@0 | 70 | { |
michael@0 | 71 | printf("\nTesting Memory Object Cache:\n"); |
michael@0 | 72 | nsCOMPtr<nsICacheSession> session; |
michael@0 | 73 | nsresult rv = MakeCacheSession("testClientID", getter_AddRefs(session)); |
michael@0 | 74 | if (NS_FAILED(rv)) return; |
michael@0 | 75 | |
michael@0 | 76 | nsCOMPtr<nsICacheEntryDescriptor> descriptor; |
michael@0 | 77 | |
michael@0 | 78 | // Test ACCESS_READ for nonexistent entry |
michael@0 | 79 | printf("\nTest ACCESS_READ:\n"); |
michael@0 | 80 | rv = session->OpenCacheEntry(NS_LITERAL_CSTRING("nonexistent entry"), |
michael@0 | 81 | nsICache::ACCESS_READ, |
michael@0 | 82 | nsICache::BLOCKING, |
michael@0 | 83 | getter_AddRefs(descriptor)); |
michael@0 | 84 | if (rv != NS_ERROR_CACHE_KEY_NOT_FOUND) |
michael@0 | 85 | printf("OpenCacheEntry(ACCESS_READ) returned: %x for nonexistent entry\n", rv); |
michael@0 | 86 | |
michael@0 | 87 | NS_NAMED_LITERAL_CSTRING(cacheKey, "http://www.mozilla.org/somekey"); |
michael@0 | 88 | |
michael@0 | 89 | // Test creating new entry |
michael@0 | 90 | printf("\nTest ACCESS_READ_WRITE:\n"); |
michael@0 | 91 | rv = session->OpenCacheEntry(cacheKey, |
michael@0 | 92 | nsICache::ACCESS_READ_WRITE, |
michael@0 | 93 | nsICache::BLOCKING, |
michael@0 | 94 | getter_AddRefs(descriptor)); |
michael@0 | 95 | if (NS_FAILED(rv)) { |
michael@0 | 96 | printf("OpenCacheEntry(ACCESS_READ_WRITE) failed: %x\n", rv); |
michael@0 | 97 | goto error_exit; |
michael@0 | 98 | } |
michael@0 | 99 | |
michael@0 | 100 | nsCOMPtr<nsISupportsCString> foo = |
michael@0 | 101 | do_CreateInstance(NS_SUPPORTS_CSTRING_CONTRACTID, &rv); |
michael@0 | 102 | |
michael@0 | 103 | foo->SetData(NS_LITERAL_CSTRING("hello world")); |
michael@0 | 104 | |
michael@0 | 105 | rv = descriptor->SetCacheElement(foo); |
michael@0 | 106 | rv = descriptor->SetDataSize(11); |
michael@0 | 107 | rv = descriptor->SetMetaDataElement("itemOne", "metaData works"); |
michael@0 | 108 | descriptor = nullptr; |
michael@0 | 109 | |
michael@0 | 110 | // Test refetching entry |
michael@0 | 111 | |
michael@0 | 112 | rv = session->OpenCacheEntry(cacheKey, |
michael@0 | 113 | nsICache::ACCESS_READ_WRITE, |
michael@0 | 114 | nsICache::BLOCKING, |
michael@0 | 115 | getter_AddRefs(descriptor)); |
michael@0 | 116 | if (NS_FAILED(rv)) { |
michael@0 | 117 | printf("OpenCacheEntry(ACCESS_READ_WRITE #2) failed: %x", rv); |
michael@0 | 118 | goto error_exit; |
michael@0 | 119 | } |
michael@0 | 120 | |
michael@0 | 121 | nsCOMPtr<nsISupportsCString> bar; |
michael@0 | 122 | descriptor->GetCacheElement(getter_AddRefs(bar)); |
michael@0 | 123 | if (foo.get() != bar.get()) { |
michael@0 | 124 | printf("cache elements not the same\n"); |
michael@0 | 125 | } else { |
michael@0 | 126 | printf("data matches...\n"); |
michael@0 | 127 | } |
michael@0 | 128 | |
michael@0 | 129 | char * metaData; |
michael@0 | 130 | rv = descriptor->GetMetaDataElement("itemOne", &metaData); |
michael@0 | 131 | if (NS_SUCCEEDED(rv)) printf("metaData = %s\n", metaData); |
michael@0 | 132 | else printf("GetMetaDataElement failed : rv = %x\n", rv); |
michael@0 | 133 | descriptor = nullptr; |
michael@0 | 134 | |
michael@0 | 135 | // Test ACCESS_WRITE entry |
michael@0 | 136 | printf("\nTest ACCESS_WRITE:\n"); |
michael@0 | 137 | rv = session->OpenCacheEntry(cacheKey, |
michael@0 | 138 | nsICache::ACCESS_WRITE, |
michael@0 | 139 | nsICache::BLOCKING, |
michael@0 | 140 | getter_AddRefs(descriptor)); |
michael@0 | 141 | if (NS_FAILED(rv)) { |
michael@0 | 142 | printf("OpenCacheEntry(ACCESS_WRITE) failed: %x", rv); |
michael@0 | 143 | goto error_exit; |
michael@0 | 144 | } |
michael@0 | 145 | rv = descriptor->GetCacheElement(getter_AddRefs(bar)); |
michael@0 | 146 | if (bar) |
michael@0 | 147 | printf("FAILED: we didn't get new entry.\n"); |
michael@0 | 148 | if (NS_FAILED(rv)) |
michael@0 | 149 | printf("GetCacheElement failed : %x\n", rv); |
michael@0 | 150 | |
michael@0 | 151 | rv = descriptor->GetMetaDataElement("itemOne", &metaData); |
michael@0 | 152 | if (NS_SUCCEEDED(rv)) |
michael@0 | 153 | if (metaData) printf("metaData = %s\n", metaData); |
michael@0 | 154 | else printf("metaData = nullptr\n"); |
michael@0 | 155 | else printf("GetMetaDataElement failed : rv = %x\n", rv); |
michael@0 | 156 | |
michael@0 | 157 | printf("\n"); |
michael@0 | 158 | error_exit: |
michael@0 | 159 | |
michael@0 | 160 | return; |
michael@0 | 161 | } |
michael@0 | 162 | |
michael@0 | 163 | |
michael@0 | 164 | int |
michael@0 | 165 | main(int argc, char* argv[]) |
michael@0 | 166 | { |
michael@0 | 167 | nsresult rv = NS_OK; |
michael@0 | 168 | |
michael@0 | 169 | // Start up XPCOM |
michael@0 | 170 | rv = NS_InitXPCOM2(nullptr, nullptr, nullptr); |
michael@0 | 171 | if (NS_FAILED(rv)) return rv; |
michael@0 | 172 | |
michael@0 | 173 | /** |
michael@0 | 174 | * Create event queue for this thread |
michael@0 | 175 | */ |
michael@0 | 176 | nsCOMPtr<nsIEventQueueService> eventQService = |
michael@0 | 177 | do_GetService(kEventQueueServiceCID, &rv); |
michael@0 | 178 | if (NS_FAILED(rv)) goto error_exit; |
michael@0 | 179 | |
michael@0 | 180 | eventQService->GetThreadEventQueue(NS_CURRENT_THREAD, getter_AddRefs(gEventQ)); |
michael@0 | 181 | |
michael@0 | 182 | /** |
michael@0 | 183 | * Test Cache |
michael@0 | 184 | */ |
michael@0 | 185 | TestMemoryObjectCache(); |
michael@0 | 186 | |
michael@0 | 187 | |
michael@0 | 188 | error_exit: |
michael@0 | 189 | gEventQ = nullptr; |
michael@0 | 190 | eventQService = nullptr; |
michael@0 | 191 | |
michael@0 | 192 | NS_ShutdownXPCOM(nullptr); |
michael@0 | 193 | |
michael@0 | 194 | printf("XPCOM shut down.\n\n"); |
michael@0 | 195 | return rv; |
michael@0 | 196 | } |
michael@0 | 197 | |
michael@0 | 198 | |
michael@0 | 199 |