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// Copyright 2019 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/strings/escape.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/test/scoped_feature_list.h"
#include "content/browser/renderer_host/frame_tree_node.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/public/test/content_mock_cert_verifier.h"
#include "content/public/test/signed_exchange_browser_test_helper.h"
#include "content/public/test/test_navigation_observer.h"
#include "content/shell/browser/shell.h"
#include "content/test/content_browser_test_utils_internal.h"
#include "net/base/filename_util.h"
#include "net/dns/mock_host_resolver.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "net/test/embedded_test_server/http_request.h"
#include "net/test/embedded_test_server/http_response.h"
#include "net/test/embedded_test_server/request_handler_util.h"
#include "services/network/public/cpp/features.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
namespace {
base::FilePath TestFilePath(const char* filename) {
base::ScopedAllowBlockingForTesting allow_blocking;
return GetTestFilePath("", filename);
}
class AncestorThrottleTest : public ContentBrowserTest,
public ::testing::WithParamInterface<bool> {
public:
AncestorThrottleTest() = default;
protected:
void SetUpOnMainThread() override {
host_resolver()->AddRule("*", "127.0.0.1");
ASSERT_TRUE(embedded_test_server()->Start());
}
private:
base::test::ScopedFeatureList feature_list_;
};
// Tests that an iframe navigation with frame-ancestors 'none' is blocked.
IN_PROC_BROWSER_TEST_F(AncestorThrottleTest, FailedCSP) {
GURL parent_url(
embedded_test_server()->GetURL("foo.com", "/page_with_iframe.html"));
GURL iframe_url(
embedded_test_server()->GetURL("foo.com", "/frame-ancestors-none.html"));
WebContentsImpl* web_contents =
static_cast<WebContentsImpl*>(shell()->web_contents());
EXPECT_TRUE(NavigateToURL(web_contents, parent_url));
EXPECT_TRUE(NavigateIframeToURL(web_contents, "test_iframe", iframe_url));
// Check that we have an opaque origin, since the frame was blocked.
// TODO(lfg): We can't check last_navigation_succeded because of
// https://crbug.com/1000804.
EXPECT_TRUE(web_contents->GetPrimaryFrameTree()
.root()
->child_at(0)
->current_frame_host()
->GetLastCommittedOrigin()
.opaque());
}
// Tests that X-Frame-Options is ignored if frame-ancestors is specified.
IN_PROC_BROWSER_TEST_F(AncestorThrottleTest, XFOAndCSPFrameAncestors) {
GURL parent_url(
embedded_test_server()->GetURL("foo.com", "/page_with_iframe.html"));
GURL iframe_url(embedded_test_server()->GetURL(
"foo.com",
"/set-header?"
"Content-Security-Policy: frame-ancestors *&"
"X-Frame-Options: DENY"));
WebContentsImpl* web_contents =
static_cast<WebContentsImpl*>(shell()->web_contents());
EXPECT_TRUE(NavigateToURL(web_contents, parent_url));
EXPECT_TRUE(NavigateIframeToURL(web_contents, "test_iframe", iframe_url));
// Check that we do not have an opaque origin, since the frame was allowed.
// TODO(lfg): We can't check last_navigation_succeded because of
// https://crbug.com/1000804.
EXPECT_FALSE(web_contents->GetPrimaryFrameTree()
.root()
->child_at(0)
->current_frame_host()
->GetLastCommittedOrigin()
.opaque());
}
// Tests that redirecting on a forbidden frame-ancestors will still commit if
// the final response does not have a CSP policy that prevents the navigation.
IN_PROC_BROWSER_TEST_F(AncestorThrottleTest, RedirectCommitsIfNoCSP) {
GURL parent_url(
embedded_test_server()->GetURL("foo.com", "/page_with_iframe.html"));
GURL iframe_url(
embedded_test_server()->GetURL("foo.com", "/redirect301-csp-to-http"));
WebContentsImpl* web_contents =
static_cast<WebContentsImpl*>(shell()->web_contents());
EXPECT_TRUE(NavigateToURL(web_contents, parent_url));
EXPECT_TRUE(NavigateIframeToURL(web_contents, "test_iframe", iframe_url));
// Check that we don't have an opaque origin, since the frame should have
// loaded.
// TODO(lfg): We can't check last_navigation_succeded because of
// https://crbug.com/1000804.
EXPECT_FALSE(web_contents->GetPrimaryFrameTree()
.root()
->child_at(0)
->current_frame_host()
->GetLastCommittedOrigin()
.opaque());
}
// Tests that redirecting on a forbidden frame-ancestors will not commit if
// the final response does have a CSP policy that prevents the navigation.
IN_PROC_BROWSER_TEST_F(AncestorThrottleTest, RedirectFails) {
GURL parent_url(
embedded_test_server()->GetURL("foo.com", "/page_with_iframe.html"));
GURL iframe_url(embedded_test_server()->GetURL(
"foo.com", "/redirect301-csp-to-frame-ancestors-none"));
WebContentsImpl* web_contents =
static_cast<WebContentsImpl*>(shell()->web_contents());
EXPECT_TRUE(NavigateToURL(web_contents, parent_url));
EXPECT_TRUE(NavigateIframeToURL(web_contents, "test_iframe", iframe_url));
// Check that we have an opaque origin, since the frame was blocked.
// TODO(lfg): We can't check last_navigation_succeded because of
// https://crbug.com/1000804.
EXPECT_TRUE(web_contents->GetPrimaryFrameTree()
.root()
->child_at(0)
->current_frame_host()
->GetLastCommittedOrigin()
.opaque());
}
// Check that we don't process CSP for 204 responses.
IN_PROC_BROWSER_TEST_F(AncestorThrottleTest, Response204CSP) {
GURL parent_url(
embedded_test_server()->GetURL("foo.com", "/page_with_iframe.html"));
GURL iframe_url(embedded_test_server()->GetURL(
"foo.com", "/response204-csp-frame-ancestors-none"));
WebContentsImpl* web_contents =
static_cast<WebContentsImpl*>(shell()->web_contents());
EXPECT_TRUE(NavigateToURL(web_contents, parent_url));
EXPECT_TRUE(NavigateIframeToURL(web_contents, "test_iframe", iframe_url));
// Not crashing means that the test succeeded.
}
// Tests iframes embedded by local files.
IN_PROC_BROWSER_TEST_F(AncestorThrottleTest, FrameAncestorsFileURLs) {
struct {
const char* csp;
bool expect_allowed;
} testCases[]{
{"frame-ancestors 'none'", false},
{"frame-ancestors file:", true},
{"frame-ancestors 'self'", false},
};
WebContentsImpl* web_contents =
static_cast<WebContentsImpl*>(shell()->web_contents());
GURL parent_url =
net::FilePathToFileURL(TestFilePath("page_with_iframe.html"));
for (const auto& testCase : testCases) {
GURL iframe_url(embedded_test_server()->GetURL(
"foo.com",
base::StringPrintf("/set-header?Content-Security-Policy: %s;",
testCase.csp)));
EXPECT_TRUE(NavigateToURL(web_contents, parent_url));
EXPECT_TRUE(NavigateIframeToURL(web_contents, "test_iframe", iframe_url));
// Check that we have an opaque origin, since the frame was blocked.
// TODO(lfg): We can't check last_navigation_succeded because of
// https://crbug.com/1000804.
bool is_opaque = web_contents->GetPrimaryFrameTree()
.root()
->child_at(0)
->current_frame_host()
->GetLastCommittedOrigin()
.opaque();
EXPECT_EQ(is_opaque, !(testCase.expect_allowed));
}
}
class AncestorThrottleSXGTest : public AncestorThrottleTest {
protected:
void SetUpCommandLine(base::CommandLine* command_line) override {
AncestorThrottleTest::SetUpCommandLine(command_line);
mock_cert_verifier_.SetUpCommandLine(command_line);
}
void SetUp() override {
sxg_test_helper_.SetUp();
AncestorThrottleTest::SetUp();
}
void SetUpInProcessBrowserTestFixture() override {
AncestorThrottleTest::SetUpInProcessBrowserTestFixture();
mock_cert_verifier_.SetUpInProcessBrowserTestFixture();
}
void TearDownOnMainThread() override {
sxg_test_helper_.TearDownOnMainThread();
AncestorThrottleTest::TearDownOnMainThread();
}
void TearDownInProcessBrowserTestFixture() override {
mock_cert_verifier_.TearDownInProcessBrowserTestFixture();
AncestorThrottleTest::TearDownInProcessBrowserTestFixture();
}
protected:
ContentMockCertVerifier mock_cert_verifier_;
SignedExchangeBrowserTestHelper sxg_test_helper_;
};
IN_PROC_BROWSER_TEST_F(AncestorThrottleSXGTest, SXGWithCSP) {
sxg_test_helper_.InstallMockCert(mock_cert_verifier_.mock_cert_verifier());
sxg_test_helper_.InstallMockCertChainInterceptor();
WebContentsImpl* web_contents =
static_cast<WebContentsImpl*>(shell()->web_contents());
EXPECT_TRUE(NavigateToURL(
web_contents, embedded_test_server()->GetURL("/page_with_iframe.html")));
GURL url = embedded_test_server()->GetURL("/sxg/test.example.org_csp.sxg");
FrameTreeNode* iframe_node =
web_contents->GetPrimaryFrameTree().root()->child_at(0);
NavigateFrameToURL(iframe_node, url);
EXPECT_TRUE(
iframe_node->current_frame_host()->GetLastCommittedOrigin().opaque());
}
} // namespace
} // namespace content
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