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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
#include <vector>
#include "base/command_line.h"
#include "base/files/file_util.h"
#include "base/path_service.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "chrome/browser/extensions/extension_apitest.h"
#include "chrome/browser/extensions/test_extension_dir.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/test/base/ui_test_utils.h"
#include "components/crx_file/id_util.h"
#include "content/public/test/browser_test_utils.h"
#include "extensions/common/extension_builder.h"
#include "extensions/common/manifest_handlers/content_capabilities_handler.h"
#include "extensions/common/switches.h"
#include "extensions/common/url_pattern.h"
#include "net/dns/mock_host_resolver.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "storage/browser/quota/special_storage_policy.h"
using extensions::DictionaryBuilder;
using extensions::Extension;
using extensions::ExtensionBuilder;
using extensions::ListBuilder;
class ContentCapabilitiesTest : public ExtensionApiTest {
protected:
void SetUpCommandLine(base::CommandLine* command_line) override {
ExtensionApiTest::SetUpCommandLine(command_line);
command_line->AppendSwitchASCII(
extensions::switches::kWhitelistedExtensionID,
crx_file::id_util::GenerateIdForPath(
base::MakeAbsoluteFilePath(test_extension_dir_.unpacked_path())));
}
// Builds an extension manifest with the given content_capabilities matches
// and permissions. The extension always has the same (whitelisted) ID.
scoped_refptr<const Extension> LoadExtensionWithCapabilities(
const std::string& matches,
const std::string& permissions,
const std::string& extension_permissions = "[]") {
std::string manifest = base::StringPrintf(
"{\n"
" \"name\": \"content_capabilities test extensions\",\n"
" \"version\": \"1\",\n"
" \"manifest_version\": 2,\n"
" \"content_capabilities\": {\n"
" \"matches\": %s,\n"
" \"permissions\": %s\n"
" },\n"
" \"permissions\": %s\n"
"}\n",
matches.c_str(), permissions.c_str(), extension_permissions.c_str());
test_extension_dir_.WriteManifest(manifest);
return LoadExtension(test_extension_dir_.unpacked_path());
}
std::string MakeJSONList(const std::string& s0 = "",
const std::string& s1 = "",
const std::string& s2 = "") {
std::vector<std::string> v;
if (!s0.empty())
v.push_back(s0);
if (!s1.empty())
v.push_back(s1);
if (!s2.empty())
v.push_back(s2);
std::string list = JoinString(v, "\",\"");
if (!list.empty())
list = "\"" + list + "\"";
return "[" + list + "]";
}
content::WebContents* web_contents() {
return browser()->tab_strip_model()->GetActiveWebContents();
}
GURL GetTestURLFor(const std::string& host) {
std::string port = base::IntToString(embedded_test_server()->port());
GURL::Replacements replacements;
replacements.SetHostStr(host);
replacements.SetPortStr(port);
return embedded_test_server()
->GetURL("/" + host + ".html")
.ReplaceComponents(replacements);
}
void InitializeTestServer() {
base::FilePath test_data;
EXPECT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &test_data));
embedded_test_server()->ServeFilesFromDirectory(
test_data.AppendASCII("extensions/content_capabilities"));
ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
host_resolver()->AddRule("*", embedded_test_server()->base_url().host());
}
// Run some script in the context of the given origin and in the presence of
// the given extension. This is used to wrap calls into the JS test functions
// defined by
// $(DIR_TEST_DATA)/extensions/content_capabilities/capability_tests.js.
testing::AssertionResult TestScriptResult(const Extension* extension,
const GURL& url,
const char* code) {
ui_test_utils::NavigateToURL(browser(), url);
bool result = false;
if (!content::ExecuteScriptAndExtractBool(web_contents(), code, &result))
return testing::AssertionFailure() << "Could not execute test script.";
if (!result)
return testing::AssertionFailure();
return testing::AssertionSuccess();
}
testing::AssertionResult CanReadClipboard(const Extension* extension,
const GURL& url) {
return TestScriptResult(extension, url, "tests.canReadClipboard()");
}
testing::AssertionResult CanWriteClipboard(const Extension* extension,
const GURL& url) {
return TestScriptResult(extension, url, "tests.canWriteClipboard()");
}
testing::AssertionResult HasUnlimitedStorage(const Extension* extension,
const GURL& url) {
if (profile()->GetSpecialStoragePolicy()->IsStorageUnlimited(url))
return testing::AssertionSuccess();
return testing::AssertionFailure();
}
private:
extensions::TestExtensionDir test_extension_dir_;
};
IN_PROC_BROWSER_TEST_F(ContentCapabilitiesTest, NoCapabilities) {
InitializeTestServer();
scoped_refptr<const Extension> extension = LoadExtensionWithCapabilities(
MakeJSONList("http://foo.example.com/*"), MakeJSONList());
EXPECT_FALSE(
CanReadClipboard(extension.get(), GetTestURLFor("foo.example.com")));
EXPECT_FALSE(
CanWriteClipboard(extension.get(), GetTestURLFor("foo.example.com")));
EXPECT_FALSE(
HasUnlimitedStorage(extension.get(), GetTestURLFor("foo.example.com")));
}
IN_PROC_BROWSER_TEST_F(ContentCapabilitiesTest, ClipboardRead) {
InitializeTestServer();
scoped_refptr<const Extension> extension = LoadExtensionWithCapabilities(
MakeJSONList("http://foo.example.com/*"), MakeJSONList("clipboardRead"));
EXPECT_TRUE(
CanReadClipboard(extension.get(), GetTestURLFor("foo.example.com")));
EXPECT_FALSE(
CanReadClipboard(extension.get(), GetTestURLFor("bar.example.com")));
EXPECT_FALSE(
CanWriteClipboard(extension.get(), GetTestURLFor("foo.example.com")));
}
IN_PROC_BROWSER_TEST_F(ContentCapabilitiesTest, ClipboardWrite) {
InitializeTestServer();
scoped_refptr<const Extension> extension = LoadExtensionWithCapabilities(
MakeJSONList("http://foo.example.com/*"), MakeJSONList("clipboardWrite"));
EXPECT_TRUE(
CanWriteClipboard(extension.get(), GetTestURLFor("foo.example.com")));
EXPECT_FALSE(
CanWriteClipboard(extension.get(), GetTestURLFor("bar.example.com")));
EXPECT_FALSE(
CanReadClipboard(extension.get(), GetTestURLFor("foo.example.com")));
}
IN_PROC_BROWSER_TEST_F(ContentCapabilitiesTest, ClipboardReadWrite) {
InitializeTestServer();
scoped_refptr<const Extension> extension = LoadExtensionWithCapabilities(
MakeJSONList("http://foo.example.com/*"),
MakeJSONList("clipboardRead", "clipboardWrite"));
EXPECT_TRUE(
CanReadClipboard(extension.get(), GetTestURLFor("foo.example.com")));
EXPECT_TRUE(
CanWriteClipboard(extension.get(), GetTestURLFor("foo.example.com")));
EXPECT_FALSE(
CanReadClipboard(extension.get(), GetTestURLFor("bar.example.com")));
EXPECT_FALSE(
CanWriteClipboard(extension.get(), GetTestURLFor("bar.example.com")));
}
IN_PROC_BROWSER_TEST_F(ContentCapabilitiesTest, UnlimitedStorage) {
InitializeTestServer();
scoped_refptr<const Extension> extension =
LoadExtensionWithCapabilities(MakeJSONList("http://foo.example.com/*"),
MakeJSONList("unlimitedStorage"));
EXPECT_TRUE(
HasUnlimitedStorage(extension.get(), GetTestURLFor("foo.example.com")));
EXPECT_FALSE(
HasUnlimitedStorage(extension.get(), GetTestURLFor("bar.example.com")));
}
IN_PROC_BROWSER_TEST_F(ContentCapabilitiesTest, WebUnlimitedStorageIsIsolated) {
InitializeTestServer();
// This extension grants unlimited storage to bar.example.com but does not
// have unlimitedStorage itself.
scoped_refptr<const Extension> extension = LoadExtensionWithCapabilities(
MakeJSONList("http://bar.example.com/*"),
MakeJSONList("unlimitedStorage"), MakeJSONList("storage"));
EXPECT_FALSE(
HasUnlimitedStorage(extension.get(), extension->GetResourceURL("")));
EXPECT_TRUE(
HasUnlimitedStorage(extension.get(), GetTestURLFor("bar.example.com")));
}
IN_PROC_BROWSER_TEST_F(ContentCapabilitiesTest,
ExtensionUnlimitedStorageIsIsolated) {
InitializeTestServer();
// This extension has unlimitedStorage but doesn't grant it to foo.example.com
scoped_refptr<const Extension> extension = LoadExtensionWithCapabilities(
MakeJSONList("http://foo.example.com/*"), MakeJSONList("clipboardRead"),
MakeJSONList("unlimitedStorage"));
EXPECT_TRUE(
HasUnlimitedStorage(extension.get(), extension->GetResourceURL("")));
EXPECT_FALSE(
HasUnlimitedStorage(extension.get(), GetTestURLFor("foo.example.com")));
}
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