| // Copyright 2015 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/files/file_path.h" |
| #include "base/functional/bind.h" |
| #include "base/strings/stringprintf.h" |
| #include "chrome/browser/extensions/extension_apitest.h" |
| #include "chrome/browser/ui/browser_navigator_params.h" |
| #include "chrome/browser/ui/tabs/tab_strip_model.h" |
| #include "chrome/test/base/ui_test_utils.h" |
| #include "content/public/browser/web_contents.h" |
| #include "content/public/test/browser_test.h" |
| #include "content/public/test/browser_test_utils.h" |
| #include "extensions/common/extension.h" |
| #include "extensions/test/test_extension_dir.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 "services/network/public/cpp/features.h" |
| |
| namespace extensions { |
| |
| namespace { |
| |
| // Returns a response whose body is request's origin. |
| std::unique_ptr<net::test_server::HttpResponse> HandleEchoOrigin( |
| const net::test_server::HttpRequest& request) { |
| if (request.relative_url != "/echo-origin") |
| return nullptr; |
| |
| auto response = std::make_unique<net::test_server::BasicHttpResponse>(); |
| response->set_code(net::HTTP_OK); |
| response->set_content_type("text/plain"); |
| auto it = request.headers.find("origin"); |
| if (it != request.headers.end()) { |
| response->set_content(it->second); |
| } else { |
| response->set_content("<no origin attached>"); |
| } |
| response->AddCustomHeader("access-control-allow-origin", "*"); |
| |
| return response; |
| } |
| |
| // JavaScript snippet which performs a fetch given a URL expression to be |
| // substituted as %s, then sends back the fetched content using |
| // chrome.test.sendScriptResult. |
| const char* kFetchScript = R"( |
| fetch(%s).then(function(result) { |
| return result.text(); |
| }).then(function(text) { |
| chrome.test.sendScriptResult(text); |
| }).catch(function(err) { |
| chrome.test.sendScriptResult(String(err)); |
| }); |
| )"; |
| |
| // JavaScript snippet which performs a fetch given a URL expression to be |
| // substituted as %s. |
| const char* kDOMFetchScript = R"( |
| fetch(%s).then(function(result) { |
| return result.text(); |
| }).catch(function(err) { |
| return String(err); |
| }); |
| )"; |
| |
| constexpr char kFetchPostScript[] = R"( |
| fetch($1, {method: 'POST'}).then((result) => { |
| return result.text(); |
| }).then((text) => { |
| window.domAutomationController.send(text); |
| }).catch((error) => { |
| window.domAutomationController.send(String(err)); |
| }); |
| )"; |
| |
| class ExtensionFetchTest : public ExtensionApiTest { |
| protected: |
| // Writes an empty background page and a text file called "text" with content |
| // "text content", then loads and returns the extension. |dir| must already |
| // have a manifest. |
| const Extension* WriteFilesAndLoadTestExtension(TestExtensionDir* dir) { |
| dir->WriteFile(FILE_PATH_LITERAL("text"), "text content"); |
| dir->WriteFile(FILE_PATH_LITERAL("bg.js"), ""); |
| return LoadExtension(dir->UnpackedPath()); |
| } |
| |
| // Returns |kFetchScript| with |url_expression| substituted as its test URL. |
| std::string GetFetchScript(const std::string& url_expression) { |
| return base::StringPrintf(kFetchScript, url_expression.c_str()); |
| } |
| |
| // Returns |kDOMFetchScript| with |url_expression| substituted as its test |
| // URL. |
| std::string GetDOMFetchScript(const std::string& url_expression) { |
| return base::StringPrintf(kDOMFetchScript, url_expression.c_str()); |
| } |
| |
| // Returns |url| as a string surrounded by single quotes, for passing to |
| // JavaScript as a string literal. |
| std::string GetQuotedURL(const GURL& url) { |
| return base::StringPrintf("'%s'", url.spec().c_str()); |
| } |
| |
| // Like GetQuotedURL(), but fetching the URL from the test server's |host| |
| // and |path|. |
| std::string GetQuotedTestServerURL(const std::string& host, |
| const std::string& path) { |
| return GetQuotedURL(embedded_test_server()->GetURL(host, path)); |
| } |
| |
| // Opens a tab, puts it in the foreground, navigates it to |url| then returns |
| // its WebContents. |
| content::WebContents* CreateAndNavigateTab(const GURL& url) { |
| NavigateParams params(browser(), url, ui::PAGE_TRANSITION_LINK); |
| params.disposition = WindowOpenDisposition::NEW_FOREGROUND_TAB; |
| ui_test_utils::NavigateToURL(¶ms); |
| return browser()->tab_strip_model()->GetActiveWebContents(); |
| } |
| |
| void SetUpOnMainThread() override { |
| ExtensionApiTest::SetUpOnMainThread(); |
| host_resolver()->AddRule("*", "127.0.0.1"); |
| |
| embedded_test_server()->RegisterRequestHandler( |
| base::BindRepeating(HandleEchoOrigin)); |
| ASSERT_TRUE(StartEmbeddedTestServer()); |
| } |
| }; |
| |
| IN_PROC_BROWSER_TEST_F(ExtensionFetchTest, ExtensionCanFetchExtensionResource) { |
| TestExtensionDir dir; |
| constexpr char kManifest[] = |
| R"({ |
| "background": {"scripts": ["bg.js"]}, |
| "manifest_version": 2, |
| "name": "ExtensionCanFetchExtensionResource", |
| "version": "1" |
| })"; |
| dir.WriteManifest(kManifest); |
| const Extension* extension = WriteFilesAndLoadTestExtension(&dir); |
| ASSERT_TRUE(extension); |
| |
| EXPECT_EQ( |
| "text content", |
| ExecuteScriptInBackgroundPage( |
| extension->id(), GetFetchScript("chrome.runtime.getURL('text')"))); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(ExtensionFetchTest, |
| ExtensionCanFetchHostedResourceWithHostPermissions) { |
| TestExtensionDir dir; |
| constexpr char kManifest[] = |
| R"({ |
| "background": {"scripts": ["bg.js"]}, |
| "manifest_version": 2, |
| "name": "ExtensionCanFetchHostedResourceWithHostPermissions", |
| "permissions": ["http://example.com/*"], |
| "version": "1" |
| })"; |
| dir.WriteManifest(kManifest); |
| const Extension* extension = WriteFilesAndLoadTestExtension(&dir); |
| ASSERT_TRUE(extension); |
| |
| EXPECT_EQ("Hello!", ExecuteScriptInBackgroundPage( |
| extension->id(), |
| GetFetchScript(GetQuotedTestServerURL( |
| "example.com", "/extensions/test_file.txt")))); |
| } |
| |
| IN_PROC_BROWSER_TEST_F( |
| ExtensionFetchTest, |
| ExtensionCannotFetchHostedResourceWithoutHostPermissions) { |
| TestExtensionDir dir; |
| constexpr char kManifest[] = |
| R"({ |
| "background": {"scripts": ["bg.js"]}, |
| "manifest_version": 2, |
| "name": "ExtensionCannotFetchHostedResourceWithoutHostPermissions", |
| "version": "1" |
| })"; |
| dir.WriteManifest(kManifest); |
| const Extension* extension = WriteFilesAndLoadTestExtension(&dir); |
| ASSERT_TRUE(extension); |
| |
| // TODO(kalman): Another test would be to configure the test server to work |
| // with CORS, and test that the fetch succeeds. |
| EXPECT_EQ( |
| "TypeError: Failed to fetch", |
| ExecuteScriptInBackgroundPage( |
| extension->id(), GetFetchScript(GetQuotedTestServerURL( |
| "example.com", "/extensions/test_file.txt")))); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(ExtensionFetchTest, |
| HostCanFetchWebAccessibleExtensionResource) { |
| TestExtensionDir dir; |
| constexpr char kManifest[] = |
| R"({ |
| "background": {"scripts": ["bg.js"]}, |
| "manifest_version": 2, |
| "name": "HostCanFetchWebAccessibleExtensionResource", |
| "version": "1", |
| "web_accessible_resources": ["text"] |
| })"; |
| dir.WriteManifest(kManifest); |
| const Extension* extension = WriteFilesAndLoadTestExtension(&dir); |
| ASSERT_TRUE(extension); |
| |
| content::WebContents* empty_tab = CreateAndNavigateTab( |
| embedded_test_server()->GetURL("example.com", "/empty.html")); |
| |
| // TODO(kalman): Test this from a content script too. |
| EXPECT_EQ( |
| "text content", |
| content::EvalJs(empty_tab, GetDOMFetchScript(GetQuotedURL( |
| extension->GetResourceURL("text"))))); |
| } |
| |
| // Calling fetch() from a http(s) service worker context to a |
| // chrome-extensions:// URL since the loading path in a service worker is |
| // different from pages. |
| // This is a regression test for https://crbug.com/901443. |
| IN_PROC_BROWSER_TEST_F( |
| ExtensionFetchTest, |
| HostCanFetchWebAccessibleExtensionResource_FetchFromServiceWorker) { |
| TestExtensionDir dir; |
| constexpr char kManifest[] = |
| R"({ |
| "background": {"scripts": ["bg.js"]}, |
| "manifest_version": 2, |
| "name": "FetchFromServiceWorker", |
| "version": "1", |
| "web_accessible_resources": ["text"] |
| })"; |
| dir.WriteManifest(kManifest); |
| const Extension* extension = WriteFilesAndLoadTestExtension(&dir); |
| ASSERT_TRUE(extension); |
| |
| content::WebContents* tab = |
| CreateAndNavigateTab(embedded_test_server()->GetURL( |
| "/workers/fetch_from_service_worker.html")); |
| EXPECT_EQ("ready", content::EvalJs(tab, "setup();")); |
| EXPECT_EQ("text content", |
| content::EvalJs( |
| tab, base::StringPrintf( |
| "fetch_from_service_worker('%s');", |
| extension->GetResourceURL("text").spec().c_str()))); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(ExtensionFetchTest, |
| HostCannotFetchNonWebAccessibleExtensionResource) { |
| TestExtensionDir dir; |
| constexpr char kManifest[] = |
| R"({ |
| "background": {"scripts": ["bg.js"]}, |
| "manifest_version": 2, |
| "name": "HostCannotFetchNonWebAccessibleExtensionResource", |
| "version": "1" |
| })"; |
| dir.WriteManifest(kManifest); |
| const Extension* extension = WriteFilesAndLoadTestExtension(&dir); |
| ASSERT_TRUE(extension); |
| |
| content::WebContents* empty_tab = CreateAndNavigateTab( |
| embedded_test_server()->GetURL("example.com", "/empty.html")); |
| |
| // TODO(kalman): Test this from a content script too. |
| EXPECT_EQ( |
| "TypeError: Failed to fetch", |
| content::EvalJs(empty_tab, GetDOMFetchScript(GetQuotedURL( |
| extension->GetResourceURL("text"))))); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(ExtensionFetchTest, FetchResponseType) { |
| const std::string script = base::StringPrintf( |
| R"(fetch(%s).then((response) => { |
| chrome.test.sendScriptResult(response.type); |
| }).catch((err) => { |
| chrome.test.sendScriptResult(String(err)); |
| });)", |
| GetQuotedTestServerURL("example.com", "/extensions/test_file.txt") |
| .data()); |
| TestExtensionDir dir; |
| constexpr char kManifest[] = |
| R"({ |
| "background": {"scripts": ["bg.js"]}, |
| "manifest_version": 2, |
| "name": "FetchResponseType", |
| "permissions": ["http://example.com/*"], |
| "version": "1" |
| })"; |
| dir.WriteManifest(kManifest); |
| const Extension* extension = WriteFilesAndLoadTestExtension(&dir); |
| ASSERT_TRUE(extension); |
| |
| EXPECT_EQ("basic", ExecuteScriptInBackgroundPage(extension->id(), script)); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(ExtensionFetchTest, OriginOnPostWithPermissions) { |
| TestExtensionDir dir; |
| dir.WriteManifest(R"JSON( |
| { |
| "background": {"scripts": ["bg.js"]}, |
| "manifest_version": 2, |
| "name": "FetchResponseType", |
| "permissions": ["http://example.com/*"], |
| "version": "1" |
| })JSON"); |
| const Extension* extension = WriteFilesAndLoadTestExtension(&dir); |
| ASSERT_TRUE(extension); |
| |
| GURL destination_url = |
| embedded_test_server()->GetURL("example.com", "/echo-origin"); |
| std::string script = content::JsReplace(kFetchPostScript, destination_url); |
| std::string origin_string = url::Origin::Create(extension->url()).Serialize(); |
| EXPECT_EQ(origin_string, |
| ExecuteScriptInBackgroundPageDeprecated(extension->id(), script)); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(ExtensionFetchTest, OriginOnPostWithoutPermissions) { |
| TestExtensionDir dir; |
| dir.WriteManifest(R"JSON( |
| { |
| "background": {"scripts": ["bg.js"]}, |
| "manifest_version": 2, |
| "name": "FetchResponseType", |
| "permissions": [], |
| "version": "1" |
| })JSON"); |
| const Extension* extension = WriteFilesAndLoadTestExtension(&dir); |
| ASSERT_TRUE(extension); |
| |
| const std::string script = content::JsReplace( |
| kFetchPostScript, |
| embedded_test_server()->GetURL("example.com", "/echo-origin")); |
| EXPECT_EQ(url::Origin::Create(extension->url()).Serialize(), |
| ExecuteScriptInBackgroundPageDeprecated(extension->id(), script)); |
| } |
| |
| // An extension background script should be able to fetch resources contained in |
| // the extension, and those resources should not be opaque. |
| IN_PROC_BROWSER_TEST_F(ExtensionFetchTest, ExtensionResourceShouldNotBeOpaque) { |
| // We use a script to test this feature. Ideally testing with fetch() and |
| // response type is better, but some logic in blink (see the manual |
| // response type handling in blink::FetchManager) would hide potential |
| // breakages, which is why we are using a script. |
| const std::string script = base::StringPrintf(R"( |
| const script = document.createElement('script'); |
| window.onerror = (message) => { |
| chrome.test.sendScriptResult('onerror: ' + message); |
| } |
| script.src = 'error.js' |
| document.body.appendChild(script);)"); |
| TestExtensionDir dir; |
| dir.WriteManifest(R"JSON( |
| { |
| "background": {"scripts": ["bg.js"]}, |
| "manifest_version": 2, |
| "name": "FetchResponseType", |
| "permissions": [], |
| "version": "1" |
| })JSON"); |
| dir.WriteFile(FILE_PATH_LITERAL("error.js"), "throw TypeError('hi!')"); |
| const Extension* extension = WriteFilesAndLoadTestExtension(&dir); |
| ASSERT_TRUE(extension); |
| |
| // We expect that we can read the content of the error here. Otherwise |
| // "onerror: Script error." will be seen. |
| EXPECT_EQ("onerror: Uncaught TypeError: hi!", |
| ExecuteScriptInBackgroundPage(extension->id(), script)); |
| } |
| |
| } // namespace |
| |
| } // namespace extensions |