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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/utf_string_conversions.h"
#include "content/browser/child_process_security_policy_impl.h"
#include "content/browser/renderer_host/render_process_host_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/shell/browser/shell.h"
#include "testing/gmock/include/gmock/gmock.h"
namespace content {
class ProcessInternalsWebUiBrowserTest : public ContentBrowserTest {
protected:
// Executing javascript in the WebUI requires using an isolated world in which
// to execute the script because WebUI has a default CSP policy denying
// "eval()", which is what EvalJs uses under the hood.
bool ExecJsInWebUI(const std::string& script) {
return ExecJs(shell()->web_contents()->GetPrimaryMainFrame(), script,
EXECUTE_SCRIPT_DEFAULT_OPTIONS, 1 /* world_id */);
}
};
// This test verifies that loading of the process-internals WebUI works
// correctly and the process rendering it has no WebUI bindings.
IN_PROC_BROWSER_TEST_F(ProcessInternalsWebUiBrowserTest, NoProcessBindings) {
GURL url("chrome://process-internals/#web-contents");
EXPECT_TRUE(NavigateToURL(shell(), url));
EXPECT_FALSE(ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings(
shell()
->web_contents()
->GetPrimaryMainFrame()
->GetProcess()
->GetDeprecatedID()));
// Execute script to ensure the page has loaded correctly and was successful
// at retrieving data from the browser process.
// Note: This requires using an isolated world in which to execute the
// script because WebUI has a default CSP policy denying "eval()", which is
// what EvalJs uses under the hood.
std::string page_contents =
EvalJs(shell()->web_contents()->GetPrimaryMainFrame(),
"document.body.innerHTML", EXECUTE_SCRIPT_DEFAULT_OPTIONS,
1 /* world_id */)
.ExtractString();
// Crude verification that the page had the right content.
EXPECT_THAT(page_contents, ::testing::HasSubstr("Process Internals"));
}
IN_PROC_BROWSER_TEST_F(ProcessInternalsWebUiBrowserTest,
MojoJsBindingsCorrectlyScoped) {
const std::u16string passed_title = u"passed";
GURL url("chrome://process-internals/#web-contents");
EXPECT_TRUE(NavigateToURL(shell(), url));
{
TitleWatcher sent_title_watcher(shell()->web_contents(), passed_title);
EXPECT_TRUE(
ExecJsInWebUI("document.title = window.Mojo? 'passed' : 'failed';"));
EXPECT_EQ(passed_title, sent_title_watcher.WaitAndGetTitle());
}
EXPECT_TRUE(NavigateToURL(shell(), GURL("about:blank")));
{
TitleWatcher sent_title_watcher(shell()->web_contents(), passed_title);
EXPECT_TRUE(
ExecJsInWebUI("document.title = window.Mojo? 'failed' : 'passed';"));
EXPECT_EQ(passed_title, sent_title_watcher.WaitAndGetTitle());
}
}
} // namespace content
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