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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/test/scoped_feature_list.h"
#include "base/values.h"
#include "chrome/browser/policy/policy_test_utils.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/common/pref_names.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "components/content_settings/core/common/content_settings.h"
#include "components/policy/core/common/policy_map.h"
#include "components/policy/core/common/policy_types.h"
#include "components/policy/policy_constants.h"
#include "components/prefs/pref_service.h"
#include "content/browser/browsing_data/browsing_data_test_utils.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/test_navigation_observer.h"
#include "net/base/features.h"
#include "net/cookies/canonical_cookie.h"
#include "net/dns/mock_host_resolver.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "services/network/public/mojom/cookie_manager.mojom.h"
#include "url/gurl.h"
namespace policy {
class LegacyCookieScopePolicyBrowserTest
: public policy::PolicyTest,
public testing::WithParamInterface<bool> {
public:
LegacyCookieScopePolicyBrowserTest() {
if (AreFeaturesEnabled()) {
scoped_feature_list_.InitWithFeatures(
{net::features::kEnablePortBoundCookies,
net::features::kEnableSchemeBoundCookies},
{});
} else {
scoped_feature_list_.InitWithFeatures(
{}, {net::features::kEnablePortBoundCookies,
net::features::kEnableSchemeBoundCookies});
}
}
bool AreFeaturesEnabled() const { return GetParam(); }
protected:
GURL example_port_80_ = GURL("https://www.example.com:80/");
GURL example_port_800_ = GURL("https://www.example.com:800/");
GURL example_port_8000_ = GURL("https://www.example.com:8000/");
GURL example_port_10_ = GURL("https://www.example.com:10/");
GURL foo_port_80_ = GURL("https://www.foo.com:80/");
GURL foo_port_800_ = GURL("https://www.foo.com:800/");
GURL foo_port_8000_ = GURL("https://www.foo.com:8000/");
GURL foo_port_10_ = GURL("https://www.foo.com:10/");
private:
base::test::ScopedFeatureList scoped_feature_list_;
};
IN_PROC_BROWSER_TEST_P(LegacyCookieScopePolicyBrowserTest,
TestLegacyCookieScopeEnabled) {
Profile* profile = browser()->profile();
// No cookies at startup
ASSERT_TRUE(content::GetCookies(profile, example_port_80_).empty());
// Add cookies for example.com and foo.com that alias each other.
ASSERT_TRUE(
content::SetCookie(profile, example_port_80_, "example_cookie=1"));
ASSERT_TRUE(
content::SetCookie(profile, example_port_800_, "example_cookie=2"));
ASSERT_TRUE(
content::SetCookie(profile, example_port_8000_, "example_cookie=3"));
ASSERT_TRUE(content::SetCookie(profile, foo_port_80_, "foo_cookie=1"));
ASSERT_TRUE(content::SetCookie(profile, foo_port_800_, "foo_cookie=2"));
ASSERT_TRUE(content::SetCookie(profile, foo_port_8000_, "foo_cookie=3"));
auto cookies = content::GetAllCookies(profile);
// When the feature is enabled, aliasing cookies will not be deleted.
// Otherwise they are not aliasing and just overwrite.
EXPECT_EQ(cookies.size(), AreFeaturesEnabled() ? 6u : 2u);
PolicyMap policies;
// Enables the policy, which will delete all aliasing cookies under each
// domain once enabled.
SetPolicy(&policies, key::kLegacyCookieScopeEnabled, base::Value(1));
UpdateProviderPolicy(policies);
// Adding an aliasing cookie after setting the policy triggers aliasing cookie
// deletion for that domain.
ASSERT_TRUE(
content::SetCookie(profile, example_port_10_, "example_cookie=4"));
ASSERT_TRUE(content::SetCookie(profile, foo_port_10_, "foo_cookie=4"));
cookies = content::GetAllCookies(profile);
// Only 2 cookies should remain, the last cookie for each domain.
EXPECT_EQ(cookies.size(), 2u);
// Only the last cookie should be present, all aliases should be deleted.
EXPECT_EQ(cookies[0].Name(), "example_cookie");
EXPECT_EQ(cookies[0].Value(), "4");
EXPECT_EQ(cookies[1].Name(), "foo_cookie");
EXPECT_EQ(cookies[1].Value(), "4");
}
IN_PROC_BROWSER_TEST_P(LegacyCookieScopePolicyBrowserTest,
TestLegacyCookieScopeEnabledForDomainList) {
Profile* profile = browser()->profile();
// No cookies at startup
ASSERT_TRUE(content::GetCookies(profile, example_port_80_).empty());
// Add cookies for example.com and foo.com that alias each other.
ASSERT_TRUE(
content::SetCookie(profile, example_port_80_, "example_cookie=1"));
ASSERT_TRUE(
content::SetCookie(profile, example_port_800_, "example_cookie=2"));
ASSERT_TRUE(
content::SetCookie(profile, example_port_8000_, "example_cookie=3"));
ASSERT_TRUE(content::SetCookie(profile, foo_port_80_, "foo_cookie=1"));
ASSERT_TRUE(content::SetCookie(profile, foo_port_800_, "foo_cookie=2"));
ASSERT_TRUE(content::SetCookie(profile, foo_port_8000_, "foo_cookie=3"));
auto cookies = content::GetAllCookies(profile);
// When the feature is enabled, aliasing cookies will not be deleted.
// Otherwise they are not aliasing and just overwrite.
EXPECT_EQ(cookies.size(), AreFeaturesEnabled() ? 6u : 2u);
base::Value::List policy_value;
// Set the policy to enable legacy cookie scope for the domains in the list.
policy_value.Append("example.com");
policy_value.Append("foo.com");
PolicyMap policies;
SetPolicy(&policies, key::kLegacyCookieScopeEnabledForDomainList,
base::Value(std::move(policy_value)));
UpdateProviderPolicy(policies);
// Adding aliasing cookie after setting policy so all previous aliases should
// be deleted.
ASSERT_TRUE(
content::SetCookie(profile, example_port_10_, "example_cookie=4"));
ASSERT_TRUE(content::SetCookie(profile, foo_port_10_, "foo_cookie=4"));
cookies = content::GetAllCookies(profile);
// Only the last cookie should be present, all aliases should be deleted.
EXPECT_EQ(cookies.size(), 2u);
EXPECT_EQ(cookies[0].Name(), "example_cookie");
EXPECT_EQ(cookies[0].Value(), "4");
EXPECT_EQ(cookies[1].Name(), "foo_cookie");
EXPECT_EQ(cookies[1].Value(), "4");
}
IN_PROC_BROWSER_TEST_P(LegacyCookieScopePolicyBrowserTest,
TestLegacyCookieScopeEnabledForSingleDomain) {
Profile* profile = browser()->profile();
// No cookies at startup
ASSERT_TRUE(content::GetCookies(profile, example_port_80_).empty());
// Add cookies for example.com and foo.com that alias each other.
ASSERT_TRUE(
content::SetCookie(profile, example_port_80_, "example_cookie=1"));
ASSERT_TRUE(
content::SetCookie(profile, example_port_800_, "example_cookie=2"));
ASSERT_TRUE(
content::SetCookie(profile, example_port_8000_, "example_cookie=3"));
ASSERT_TRUE(content::SetCookie(profile, foo_port_80_, "foo_cookie=1"));
ASSERT_TRUE(content::SetCookie(profile, foo_port_800_, "foo_cookie=2"));
ASSERT_TRUE(content::SetCookie(profile, foo_port_8000_, "foo_cookie=3"));
auto cookies = content::GetAllCookies(profile);
if (AreFeaturesEnabled()) {
EXPECT_EQ(cookies.size(), 6u);
} else {
EXPECT_EQ(cookies.size(), 2u);
}
base::Value::List policy_value;
// Set the policy to enable legacy cookie scope for the example.com
// Aliases under foo.com should not be deleted due to this.
policy_value.Append("example.com");
PolicyMap policies;
SetPolicy(&policies, key::kLegacyCookieScopeEnabledForDomainList,
base::Value(std::move(policy_value)));
UpdateProviderPolicy(policies);
// Adding aliasing cookie after setting policy so all previous aliases should
// be deleted.
ASSERT_TRUE(
content::SetCookie(profile, example_port_10_, "example_cookie=4"));
// foo_cookie=4 and all of it's aliases should not be deleted.
ASSERT_TRUE(content::SetCookie(profile, foo_port_10_, "foo_cookie=4"));
cookies = content::GetAllCookies(profile);
// Separate cookies by name.
std::vector<net::CanonicalCookie> example_cookies;
std::vector<net::CanonicalCookie> foo_cookies;
for (const auto& cookie : cookies) {
if (cookie.Name() == "example_cookie") {
example_cookies.push_back(cookie);
} else if (cookie.Name() == "foo_cookie") {
foo_cookies.push_back(cookie);
}
}
// Check the number of cookies for each name.
// Only one example_cookie should remain.
EXPECT_EQ(example_cookies.size(), 1u);
EXPECT_EQ(example_cookies[0].Value(), "4");
if (AreFeaturesEnabled()) {
// All foo_cookie should remain.
EXPECT_EQ(foo_cookies.size(), 4u);
} else {
// Without port-bound cookies, these are not aliasing and just overwrite.
EXPECT_EQ(foo_cookies.size(), 1u);
EXPECT_EQ(foo_cookies[0].Value(), "4");
}
}
IN_PROC_BROWSER_TEST_P(
LegacyCookieScopePolicyBrowserTest,
TestLegacyCookieScopeEnabledForDomainListPartitionedCookies) {
Profile* profile = browser()->profile();
// No cookies at startup
ASSERT_TRUE(content::GetCookies(profile, example_port_80_).empty());
net::CookiePartitionKey partition_key =
net::CookiePartitionKey::FromURLForTesting(
GURL("https://www.example.com"));
// Add cookies for example.com and foo.com that alias each other.
ASSERT_TRUE(content::SetCookie(
profile, example_port_80_,
"example_cookie=1;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
ASSERT_TRUE(content::SetCookie(
profile, example_port_800_,
"example_cookie=2;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
ASSERT_TRUE(content::SetCookie(
profile, example_port_8000_,
"example_cookie=3;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
ASSERT_TRUE(content::SetCookie(
profile, foo_port_80_, "foo_cookie=1;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
ASSERT_TRUE(content::SetCookie(
profile, foo_port_800_, "foo_cookie=2;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
ASSERT_TRUE(content::SetCookie(
profile, foo_port_8000_, "foo_cookie=3;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
auto cookies = content::GetAllCookies(profile);
// When the feature is enabled, aliasing cookies will not be deleted.
// Otherwise they are not aliasing and just overwrite.
EXPECT_EQ(cookies.size(), AreFeaturesEnabled() ? 6u : 2u);
base::Value::List policy_value;
// Set the policy to enable legacy cookie scope for the domains in the list.
policy_value.Append("example.com");
policy_value.Append("foo.com");
PolicyMap policies;
SetPolicy(&policies, key::kLegacyCookieScopeEnabledForDomainList,
base::Value(std::move(policy_value)));
UpdateProviderPolicy(policies);
// Adding aliasing cookie after setting policy so all previous aliases should
// be deleted.
ASSERT_TRUE(content::SetCookie(
profile, example_port_10_,
"example_cookie=4;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
ASSERT_TRUE(content::SetCookie(
profile, foo_port_10_, "foo_cookie=4;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
cookies = content::GetAllCookies(profile);
// Only the last cookie should be present, all aliases should be deleted.
EXPECT_EQ(cookies.size(), 2u);
EXPECT_EQ(cookies[0].Name(), "example_cookie");
EXPECT_EQ(cookies[0].Value(), "4");
EXPECT_TRUE(cookies[0].IsPartitioned());
EXPECT_EQ(cookies[1].Name(), "foo_cookie");
EXPECT_EQ(cookies[1].Value(), "4");
EXPECT_TRUE(cookies[1].IsPartitioned());
}
IN_PROC_BROWSER_TEST_P(LegacyCookieScopePolicyBrowserTest,
TestLegacyCookieScopeEnabledPartitionedCookies) {
Profile* profile = browser()->profile();
// No cookies at startup
ASSERT_TRUE(content::GetCookies(profile, example_port_80_).empty());
net::CookiePartitionKey partition_key =
net::CookiePartitionKey::FromURLForTesting(
GURL("https://www.example.com"));
// Add cookies for example.com and foo.com that alias each other.
ASSERT_TRUE(content::SetCookie(
profile, example_port_80_,
"example_cookie=1;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
ASSERT_TRUE(content::SetCookie(
profile, example_port_800_,
"example_cookie=2;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
ASSERT_TRUE(content::SetCookie(
profile, example_port_8000_,
"example_cookie=3;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
ASSERT_TRUE(content::SetCookie(
profile, foo_port_80_, "foo_cookie=1;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
ASSERT_TRUE(content::SetCookie(
profile, foo_port_800_, "foo_cookie=2;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
ASSERT_TRUE(content::SetCookie(
profile, foo_port_8000_, "foo_cookie=3;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
auto cookies = content::GetAllCookies(profile);
// When the feature is enabled, aliasing cookies will not be deleted.
// Otherwise they are not aliasing and just overwrite.
EXPECT_EQ(cookies.size(), AreFeaturesEnabled() ? 6u : 2u);
base::Value::List policy_value;
// Set the policy to enable legacy cookie scope for the domains in the list.
policy_value.Append("example.com");
policy_value.Append("foo.com");
PolicyMap policies;
SetPolicy(&policies, key::kLegacyCookieScopeEnabled, base::Value(1));
UpdateProviderPolicy(policies);
// Adding aliasing cookie after setting policy so all previous aliases should
// be deleted.
ASSERT_TRUE(content::SetCookie(
profile, example_port_10_,
"example_cookie=4;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
ASSERT_TRUE(content::SetCookie(
profile, foo_port_10_, "foo_cookie=4;SameSite=None;Secure;Partitioned",
net::CookieOptions::SameSiteCookieContext::MakeInclusive(),
&partition_key));
cookies = content::GetAllCookies(profile);
// Only the last cookie should be present, all aliases should be deleted.
EXPECT_EQ(cookies.size(), 2u);
EXPECT_EQ(cookies[0].Name(), "example_cookie");
EXPECT_EQ(cookies[0].Value(), "4");
EXPECT_TRUE(cookies[0].IsPartitioned());
EXPECT_EQ(cookies[1].Name(), "foo_cookie");
EXPECT_EQ(cookies[1].Value(), "4");
EXPECT_TRUE(cookies[1].IsPartitioned());
}
INSTANTIATE_TEST_SUITE_P(All,
LegacyCookieScopePolicyBrowserTest,
testing::Bool());
} // namespace policy
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