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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/extensions/blocklist.h"
#include "base/functional/bind.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_runner.h"
#include "chrome/browser/extensions/blocklist_state_fetcher.h"
#include "chrome/browser/extensions/fake_safe_browsing_database_manager.h"
#include "chrome/browser/extensions/scoped_database_manager_for_test.h"
#include "chrome/browser/extensions/test_blocklist.h"
#include "chrome/browser/extensions/test_blocklist_state_fetcher.h"
#include "chrome/browser/extensions/test_extension_prefs.h"
#include "content/public/test/browser_task_environment.h"
#include "extensions/browser/extension_prefs.h"
#include "extensions/common/extension_id.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace extensions {
namespace {
class BlocklistTest : public testing::Test {
public:
BlocklistTest()
: test_prefs_(base::SingleThreadTaskRunner::GetCurrentDefault()) {}
protected:
ExtensionId AddExtension(const ExtensionId& id) {
return test_prefs_.AddExtension(id)->id();
}
private:
content::BrowserTaskEnvironment task_environment_;
TestExtensionPrefs test_prefs_;
};
template <typename T>
void Assign(T* to, const T& from) {
*to = from;
}
} // namespace
TEST_F(BlocklistTest, OnlyIncludesRequestedIDs) {
ExtensionId a = AddExtension("a");
ExtensionId b = AddExtension("b");
ExtensionId c = AddExtension("c");
Blocklist blocklist;
TestBlocklist tester(&blocklist);
tester.SetBlocklistState(a, BLOCKLISTED_MALWARE, false);
tester.SetBlocklistState(b, BLOCKLISTED_MALWARE, false);
EXPECT_EQ(BLOCKLISTED_MALWARE, tester.GetBlocklistState(a));
EXPECT_EQ(BLOCKLISTED_MALWARE, tester.GetBlocklistState(b));
EXPECT_EQ(NOT_BLOCKLISTED, tester.GetBlocklistState(c));
std::set<ExtensionId> blocklisted_ids;
blocklist.GetMalwareIDs(
{a, c}, base::BindOnce(&Assign<std::set<ExtensionId>>, &blocklisted_ids));
base::RunLoop().RunUntilIdle();
EXPECT_EQ((std::set<ExtensionId>{a}), blocklisted_ids);
}
TEST_F(BlocklistTest, SafeBrowsing) {
ExtensionId a = AddExtension("a");
Blocklist blocklist;
TestBlocklist tester(&blocklist);
tester.DisableSafeBrowsing();
EXPECT_EQ(NOT_BLOCKLISTED, tester.GetBlocklistState(a));
tester.SetBlocklistState(a, BLOCKLISTED_MALWARE, false);
// The manager is still disabled at this point, so it won't be blocklisted.
EXPECT_EQ(NOT_BLOCKLISTED, tester.GetBlocklistState(a));
tester.EnableSafeBrowsing();
tester.NotifyUpdate();
base::RunLoop().RunUntilIdle();
// Now it should be.
EXPECT_EQ(BLOCKLISTED_MALWARE, tester.GetBlocklistState(a));
tester.Clear(true);
// Safe browsing blocklist empty, now enabled.
EXPECT_EQ(NOT_BLOCKLISTED, tester.GetBlocklistState(a));
}
// Test getting different blocklist states from Blocklist.
TEST_F(BlocklistTest, GetBlocklistStates) {
Blocklist blocklist;
TestBlocklist tester(&blocklist);
ExtensionId a = AddExtension("a");
ExtensionId b = AddExtension("b");
ExtensionId c = AddExtension("c");
ExtensionId d = AddExtension("d");
ExtensionId e = AddExtension("e");
tester.SetBlocklistState(a, BLOCKLISTED_MALWARE, false);
tester.SetBlocklistState(b, BLOCKLISTED_SECURITY_VULNERABILITY, false);
tester.SetBlocklistState(c, BLOCKLISTED_CWS_POLICY_VIOLATION, false);
tester.SetBlocklistState(d, BLOCKLISTED_POTENTIALLY_UNWANTED, false);
Blocklist::BlocklistStateMap states_abc;
Blocklist::BlocklistStateMap states_bcd;
blocklist.GetBlocklistedIDs(
{a, b, c, e},
base::BindOnce(&Assign<Blocklist::BlocklistStateMap>, &states_abc));
blocklist.GetBlocklistedIDs(
{b, c, d, e},
base::BindOnce(&Assign<Blocklist::BlocklistStateMap>, &states_bcd));
base::RunLoop().RunUntilIdle();
EXPECT_EQ(BLOCKLISTED_MALWARE, states_abc[a]);
EXPECT_EQ(BLOCKLISTED_SECURITY_VULNERABILITY, states_abc[b]);
EXPECT_EQ(BLOCKLISTED_CWS_POLICY_VIOLATION, states_abc[c]);
EXPECT_EQ(BLOCKLISTED_SECURITY_VULNERABILITY, states_bcd[b]);
EXPECT_EQ(BLOCKLISTED_CWS_POLICY_VIOLATION, states_bcd[c]);
EXPECT_EQ(BLOCKLISTED_POTENTIALLY_UNWANTED, states_bcd[d]);
EXPECT_EQ(0U, states_abc.count(e));
EXPECT_EQ(0U, states_bcd.count(e));
int old_request_count = tester.fetcher()->request_count();
Blocklist::BlocklistStateMap states_ad;
blocklist.GetBlocklistedIDs(
{a, d, e},
base::BindOnce(&Assign<Blocklist::BlocklistStateMap>, &states_ad));
base::RunLoop().RunUntilIdle();
EXPECT_EQ(BLOCKLISTED_MALWARE, states_ad[a]);
EXPECT_EQ(BLOCKLISTED_POTENTIALLY_UNWANTED, states_ad[d]);
EXPECT_EQ(0U, states_ad.count(e));
EXPECT_EQ(old_request_count, tester.fetcher()->request_count());
}
// Test both Blocklist and BlocklistStateFetcher by requesting the blocklist
// states, sending fake requests and parsing the responses.
TEST_F(BlocklistTest, FetchBlocklistStates) {
Blocklist blocklist;
scoped_refptr<FakeSafeBrowsingDatabaseManager> blocklist_db(
new FakeSafeBrowsingDatabaseManager(true));
ScopedDatabaseManagerForTest scoped_blocklist_db(blocklist_db);
ExtensionId a = AddExtension("a");
ExtensionId b = AddExtension("b");
ExtensionId c = AddExtension("c");
blocklist_db->Enable();
blocklist_db->SetUnsafe(a, b);
// Prepare real fetcher.
BlocklistStateFetcher* fetcher = new BlocklistStateFetcher();
TestBlocklistStateFetcher fetcher_tester(fetcher);
blocklist.SetBlocklistStateFetcherForTest(fetcher);
fetcher_tester.SetBlocklistVerdict(
a, ClientCRXListInfoResponse_Verdict_CWS_POLICY_VIOLATION);
fetcher_tester.SetBlocklistVerdict(
b, ClientCRXListInfoResponse_Verdict_POTENTIALLY_UNWANTED);
Blocklist::BlocklistStateMap states;
blocklist.GetBlocklistedIDs(
{a, b, c},
base::BindOnce(&Assign<Blocklist::BlocklistStateMap>, &states));
base::RunLoop().RunUntilIdle();
// Two fetchers should be created.
EXPECT_TRUE(fetcher_tester.HandleFetcher(a));
EXPECT_TRUE(fetcher_tester.HandleFetcher(b));
EXPECT_EQ(BLOCKLISTED_CWS_POLICY_VIOLATION, states[a]);
EXPECT_EQ(BLOCKLISTED_POTENTIALLY_UNWANTED, states[b]);
EXPECT_EQ(0U, states.count(c));
Blocklist::BlocklistStateMap cached_states;
blocklist.GetBlocklistedIDs(
{a, b, c},
base::BindOnce(&Assign<Blocklist::BlocklistStateMap>, &cached_states));
base::RunLoop().RunUntilIdle();
// No new fetchers.
EXPECT_FALSE(fetcher_tester.HandleFetcher(c));
EXPECT_EQ(BLOCKLISTED_CWS_POLICY_VIOLATION, cached_states[a]);
EXPECT_EQ(BLOCKLISTED_POTENTIALLY_UNWANTED, cached_states[b]);
EXPECT_EQ(0U, cached_states.count(c));
}
} // namespace extensions
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