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#include "Common.h"
#include "HashStore.h"
#include "Classifier.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsTArray.h"
#include "nsIThread.h"
#include "nsThreadUtils.h"
#include "nsUrlClassifierUtils.h"
using namespace mozilla;
using namespace mozilla::safebrowsing;
#define GTEST_SAFEBROWSING_DIR NS_LITERAL_CSTRING("safebrowsing")
#define GTEST_TABLE NS_LITERAL_CSTRING("gtest-malware-proto")
template <typename Function>
void RunTestInNewThread(Function&& aFunction) {
nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction(
"RunTestInNewThread", mozilla::Forward<Function>(aFunction));
nsCOMPtr<nsIThread> testingThread;
nsresult rv =
NS_NewNamedThread("Testing Thread", getter_AddRefs(testingThread), r);
ASSERT_EQ(rv, NS_OK);
testingThread->Shutdown();
}
nsresult SyncApplyUpdates(Classifier* aClassifier,
nsTArray<TableUpdate*>* aUpdates) {
// We need to spin a new thread specifically because the callback
// will be on the caller thread. If we call Classifier::AsyncApplyUpdates
// and wait on the same thread, this function will never return.
nsresult ret = NS_ERROR_FAILURE;
bool done = false;
auto onUpdateComplete = [&done, &ret](nsresult rv) {
// We are on the "ApplyUpdate" thread. Post an event to main thread
// so that we can avoid busy waiting on the main thread.
nsCOMPtr<nsIRunnable> r =
NS_NewRunnableFunction("SyncApplyUpdates", [&done, &ret, rv] {
ret = rv;
done = true;
});
NS_DispatchToMainThread(r);
};
nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction("SyncApplyUpdates", [&]() {
nsresult rv = aClassifier->AsyncApplyUpdates(aUpdates, onUpdateComplete);
if (NS_FAILED(rv)) {
onUpdateComplete(rv);
}
});
nsCOMPtr<nsIThread> testingThread;
NS_NewNamedThread("ApplyUpdates", getter_AddRefs(testingThread));
if (!testingThread) {
return NS_ERROR_FAILURE;
}
testingThread->Dispatch(r, NS_DISPATCH_NORMAL);
// NS_NewCheckSummedOutputStream in HashStore::WriteFile
// will synchronously init NS_CRYPTO_HASH_CONTRACTID on
// the main thread. As a result we have to keep processing
// pending event until |done| becomes true. If there's no
// more pending event, what we only can do is wait.
MOZ_ALWAYS_TRUE(SpinEventLoopUntil([&]() { return done; }));
return ret;
}
already_AddRefed<nsIFile> GetFile(const nsTArray<nsString>& path) {
nsCOMPtr<nsIFile> file;
nsresult rv =
NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(file));
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
for (uint32_t i = 0; i < path.Length(); i++) {
file->Append(path[i]);
}
return file.forget();
}
void ApplyUpdate(nsTArray<TableUpdate*>& updates) {
nsCOMPtr<nsIFile> file;
NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(file));
UniquePtr<Classifier> classifier(new Classifier());
classifier->Open(*file);
{
// Force nsIUrlClassifierUtils loading on main thread
// because nsIUrlClassifierDBService will not run in advance
// in gtest.
nsresult rv;
nsCOMPtr<nsIUrlClassifierUtils> dummy =
do_GetService(NS_URLCLASSIFIERUTILS_CONTRACTID, &rv);
ASSERT_TRUE(NS_SUCCEEDED(rv));
}
SyncApplyUpdates(classifier.get(), &updates);
}
void ApplyUpdate(TableUpdate* update) {
nsTArray<TableUpdate*> updates = {update};
ApplyUpdate(updates);
}
void PrefixArrayToPrefixStringMap(const nsTArray<nsCString>& prefixArray,
PrefixStringMap& out) {
out.Clear();
for (uint32_t i = 0; i < prefixArray.Length(); i++) {
const nsCString& prefix = prefixArray[i];
nsCString* prefixString = out.LookupOrAdd(prefix.Length());
prefixString->Append(prefix.BeginReading(), prefix.Length());
}
}
nsresult PrefixArrayToAddPrefixArrayV2(const nsTArray<nsCString>& prefixArray,
AddPrefixArray& out) {
out.Clear();
for (size_t i = 0; i < prefixArray.Length(); i++) {
// Create prefix hash from string
Prefix hash;
static_assert(sizeof(hash.buf) == PREFIX_SIZE,
"Prefix must be 4 bytes length");
memcpy(hash.buf, prefixArray[i].BeginReading(), PREFIX_SIZE);
AddPrefix* add = out.AppendElement(fallible);
if (!add) {
return NS_ERROR_OUT_OF_MEMORY;
}
add->addChunk = i;
add->prefix = hash;
}
return NS_OK;
}
nsCString GeneratePrefix(const nsCString& aFragment, uint8_t aLength) {
Completion complete;
complete.FromPlaintext(aFragment);
nsCString hash;
hash.Assign((const char*)complete.buf, aLength);
return hash;
}
static nsresult BuildCache(LookupCacheV2* cache,
const _PrefixArray& prefixArray) {
AddPrefixArray prefixes;
AddCompleteArray completions;
nsresult rv = PrefixArrayToAddPrefixArrayV2(prefixArray, prefixes);
if (NS_FAILED(rv)) {
return rv;
}
EntrySort(prefixes);
return cache->Build(prefixes, completions);
}
static nsresult BuildCache(LookupCacheV4* cache,
const _PrefixArray& prefixArray) {
PrefixStringMap map;
PrefixArrayToPrefixStringMap(prefixArray, map);
return cache->Build(map);
}
template <typename T>
UniquePtr<T> SetupLookupCache(const _PrefixArray& prefixArray) {
nsCOMPtr<nsIFile> file;
NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(file));
file->AppendNative(GTEST_SAFEBROWSING_DIR);
UniquePtr<T> cache = MakeUnique<T>(GTEST_TABLE, EmptyCString(), file);
nsresult rv = cache->Init();
EXPECT_EQ(rv, NS_OK);
rv = BuildCache(cache.get(), prefixArray);
EXPECT_EQ(rv, NS_OK);
return Move(cache);
}
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