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/* -*- 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/. */
#include "UrlClassifierFeatureBase.h"
#include "Classifier.h"
#include "mozilla/Preferences.h"
namespace mozilla {
using namespace safebrowsing;
namespace net {
namespace {
void OnPrefsChange(const char* aPrefName, void* aArray) {
auto array = static_cast<nsTArray<nsCString>*>(aArray);
MOZ_ASSERT(array);
nsAutoCString value;
Preferences::GetCString(aPrefName, value);
Classifier::SplitTables(value, *array);
}
} // namespace
NS_INTERFACE_MAP_BEGIN(UrlClassifierFeatureBase)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIUrlClassifierFeature)
NS_INTERFACE_MAP_ENTRY(nsIUrlClassifierFeature)
NS_INTERFACE_MAP_ENTRY(nsIUrlClassifierExceptionListObserver)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(UrlClassifierFeatureBase)
NS_IMPL_RELEASE(UrlClassifierFeatureBase)
UrlClassifierFeatureBase::UrlClassifierFeatureBase(
const nsACString& aName, const nsACString& aPrefBlocklistTables,
const nsACString& aPrefEntitylistTables,
const nsACString& aPrefBlocklistHosts,
const nsACString& aPrefEntitylistHosts,
const nsACString& aPrefBlocklistTableName,
const nsACString& aPrefEntitylistTableName,
const nsACString& aPrefExceptionHosts)
: mName(aName), mPrefExceptionHosts(aPrefExceptionHosts) {
static_assert(nsIUrlClassifierFeature::blocklist == 0,
"nsIUrlClassifierFeature::blocklist must be 0");
static_assert(nsIUrlClassifierFeature::entitylist == 1,
"nsIUrlClassifierFeature::entitylist must be 1");
mPrefTables[nsIUrlClassifierFeature::blocklist] = aPrefBlocklistTables;
mPrefTables[nsIUrlClassifierFeature::entitylist] = aPrefEntitylistTables;
mPrefHosts[nsIUrlClassifierFeature::blocklist] = aPrefBlocklistHosts;
mPrefHosts[nsIUrlClassifierFeature::entitylist] = aPrefEntitylistHosts;
mPrefTableNames[nsIUrlClassifierFeature::blocklist] = aPrefBlocklistTableName;
mPrefTableNames[nsIUrlClassifierFeature::entitylist] =
aPrefEntitylistTableName;
}
UrlClassifierFeatureBase::~UrlClassifierFeatureBase() = default;
void UrlClassifierFeatureBase::InitializePreferences() {
for (uint32_t i = 0; i < 2; ++i) {
if (!mPrefTables[i].IsEmpty()) {
Preferences::RegisterCallbackAndCall(OnPrefsChange, mPrefTables[i],
&mTables[i]);
}
if (!mPrefHosts[i].IsEmpty()) {
Preferences::RegisterCallbackAndCall(OnPrefsChange, mPrefHosts[i],
&mHosts[i]);
}
}
nsCOMPtr<nsIUrlClassifierExceptionListService> exceptionListService =
do_GetService("@mozilla.org/url-classifier/exception-list-service;1");
if (NS_WARN_IF(!exceptionListService)) {
return;
}
exceptionListService->RegisterAndRunExceptionListObserver(
mName, mPrefExceptionHosts, this);
}
void UrlClassifierFeatureBase::ShutdownPreferences() {
for (uint32_t i = 0; i < 2; ++i) {
if (!mPrefTables[i].IsEmpty()) {
Preferences::UnregisterCallback(OnPrefsChange, mPrefTables[i],
&mTables[i]);
}
if (!mPrefHosts[i].IsEmpty()) {
Preferences::UnregisterCallback(OnPrefsChange, mPrefHosts[i], &mHosts[i]);
}
}
nsCOMPtr<nsIUrlClassifierExceptionListService> exceptionListService =
do_GetService("@mozilla.org/url-classifier/exception-list-service;1");
if (exceptionListService) {
exceptionListService->UnregisterExceptionListObserver(mName, this);
}
}
NS_IMETHODIMP
UrlClassifierFeatureBase::OnExceptionListUpdate(const nsACString& aList) {
mExceptionHosts = aList;
return NS_OK;
}
NS_IMETHODIMP
UrlClassifierFeatureBase::GetName(nsACString& aName) {
aName = mName;
return NS_OK;
}
NS_IMETHODIMP
UrlClassifierFeatureBase::GetTables(nsIUrlClassifierFeature::listType aListType,
nsTArray<nsCString>& aTables) {
if (aListType != nsIUrlClassifierFeature::blocklist &&
aListType != nsIUrlClassifierFeature::entitylist) {
return NS_ERROR_INVALID_ARG;
}
aTables = mTables[aListType].Clone();
return NS_OK;
}
NS_IMETHODIMP
UrlClassifierFeatureBase::HasTable(const nsACString& aTable,
nsIUrlClassifierFeature::listType aListType,
bool* aResult) {
NS_ENSURE_ARG_POINTER(aResult);
if (aListType != nsIUrlClassifierFeature::blocklist &&
aListType != nsIUrlClassifierFeature::entitylist) {
return NS_ERROR_INVALID_ARG;
}
*aResult = mTables[aListType].Contains(aTable);
return NS_OK;
}
NS_IMETHODIMP
UrlClassifierFeatureBase::HasHostInPreferences(
const nsACString& aHost, nsIUrlClassifierFeature::listType aListType,
nsACString& aPrefTableName, bool* aResult) {
NS_ENSURE_ARG_POINTER(aResult);
if (aListType != nsIUrlClassifierFeature::blocklist &&
aListType != nsIUrlClassifierFeature::entitylist) {
return NS_ERROR_INVALID_ARG;
}
*aResult = mHosts[aListType].Contains(aHost);
if (*aResult) {
aPrefTableName = mPrefTableNames[aListType];
}
return NS_OK;
}
NS_IMETHODIMP
UrlClassifierFeatureBase::GetExceptionHostList(nsACString& aList) {
aList = mExceptionHosts;
return NS_OK;
}
} // namespace net
} // namespace mozilla
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