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content / browser / blob_storage / blob_url_browsertest.cc [blame]
// Copyright 2016 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/pattern.h"
#include "build/build_config.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/url_constants.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/test_utils.h"
#include "content/shell/browser/shell.h"
#include "content/test/content_browser_test_utils_internal.h"
#include "net/dns/mock_host_resolver.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "third_party/blink/public/common/features.h"
#include "url/gurl.h"
#include "url/origin.h"
namespace content {
// Tests of the blob: URL scheme.
class BlobUrlBrowserTest : public ContentBrowserTest {
public:
BlobUrlBrowserTest() = default;
BlobUrlBrowserTest(const BlobUrlBrowserTest&) = delete;
BlobUrlBrowserTest& operator=(const BlobUrlBrowserTest&) = delete;
void SetUpOnMainThread() override {
host_resolver()->AddRule("*", "127.0.0.1");
SetupCrossSiteRedirector(embedded_test_server());
ASSERT_TRUE(embedded_test_server()->Start());
}
};
IN_PROC_BROWSER_TEST_F(BlobUrlBrowserTest, LinkToUniqueOriginBlob) {
// Use a data URL to obtain a test page in a unique origin. The page
// contains a link to a "blob:null/SOME-GUID-STRING" URL.
EXPECT_TRUE(NavigateToURL(
shell(),
GURL("data:text/html,<body><script>"
"var link = document.body.appendChild(document.createElement('a'));"
"link.innerText = 'Click Me!';"
"link.href = URL.createObjectURL(new Blob(['potato']));"
"link.target = '_blank';"
"link.id = 'click_me';"
"</script></body>")));
// Click the link.
ShellAddedObserver new_shell_observer;
EXPECT_TRUE(ExecJs(shell(), "document.getElementById('click_me').click()"));
// The link should create a new tab.
Shell* new_shell = new_shell_observer.GetShell();
WebContents* new_contents = new_shell->web_contents();
EXPECT_TRUE(WaitForLoadStop(new_contents));
EXPECT_TRUE(
base::MatchPattern(new_contents->GetVisibleURL().spec(), "blob:null/*"));
EXPECT_EQ(
"null potato",
EvalJs(new_contents, "self.origin + ' ' + document.body.innerText;"));
}
IN_PROC_BROWSER_TEST_F(BlobUrlBrowserTest, LinkToSameOriginBlob) {
// Using an http page, click a link that opens a popup to a same-origin blob.
GURL url = embedded_test_server()->GetURL("chromium.org", "/title1.html");
url::Origin origin = url::Origin::Create(url);
EXPECT_TRUE(NavigateToURL(shell(), url));
ShellAddedObserver new_shell_observer;
EXPECT_TRUE(ExecJs(
shell(),
"var link = document.body.appendChild(document.createElement('a'));"
"link.innerText = 'Click Me!';"
"link.href = URL.createObjectURL(new Blob(['potato']));"
"link.target = '_blank';"
"link.click()"));
// The link should create a new tab.
Shell* new_shell = new_shell_observer.GetShell();
WebContents* new_contents = new_shell->web_contents();
EXPECT_TRUE(WaitForLoadStop(new_contents));
EXPECT_TRUE(base::MatchPattern(new_contents->GetVisibleURL().spec(),
"blob:" + origin.Serialize() + "/*"));
EXPECT_EQ(
origin.Serialize() + " potato",
EvalJs(new_contents, " self.origin + ' ' + document.body.innerText;"));
}
// Regression test for https://crbug.com/646278
IN_PROC_BROWSER_TEST_F(BlobUrlBrowserTest, LinkToSameOriginBlobWithAuthority) {
// Using an http page, click a link that opens a popup to a same-origin blob
// that has a spoofy authority section applied. This should be blocked.
GURL url = embedded_test_server()->GetURL("chromium.org", "/title1.html");
url::Origin origin = url::Origin::Create(url);
EXPECT_TRUE(NavigateToURL(shell(), url));
ShellAddedObserver new_shell_observer;
EXPECT_TRUE(ExecJs(
shell(),
"var link = document.body.appendChild(document.createElement('a'));"
"link.innerText = 'Click Me!';"
"link.href = 'blob:http://spoof.com@' + "
" URL.createObjectURL(new Blob(['potato'])).split('://')[1];"
"link.rel = 'opener'; link.target = '_blank';"
"link.click()"));
// The link should create a new tab.
Shell* new_shell = new_shell_observer.GetShell();
WebContents* new_contents = new_shell->web_contents();
EXPECT_TRUE(WaitForLoadStop(new_contents));
// The spoofy URL should not be shown to the user.
EXPECT_FALSE(
base::MatchPattern(new_contents->GetVisibleURL().spec(), "*spoof*"));
// The currently implemented behavior is that the URL gets rewritten to
// about:blank#blocked.
EXPECT_EQ(kBlockedURL, new_contents->GetVisibleURL().spec());
EXPECT_EQ(
origin.Serialize() + " ",
EvalJs(new_contents,
"self.origin + ' ' + document.body.innerText;")); // no potato
}
// Regression test for https://crbug.com/646278
IN_PROC_BROWSER_TEST_F(BlobUrlBrowserTest, ReplaceStateToAddAuthorityToBlob) {
// history.replaceState from a validly loaded blob URL shouldn't allow adding
// an authority to the inner URL, which would be spoofy.
GURL url = embedded_test_server()->GetURL("chromium.org", "/title1.html");
url::Origin origin = url::Origin::Create(url);
EXPECT_TRUE(NavigateToURL(shell(), url));
ShellAddedObserver new_shell_observer;
EXPECT_TRUE(ExecJs(shell(),
"args = ['<body>potato</body>'];\n"
"b = new Blob(args, {type: 'text/html'});"
"window.open(URL.createObjectURL(b));"));
Shell* new_shell = new_shell_observer.GetShell();
WebContents* new_contents = new_shell->web_contents();
EXPECT_TRUE(WaitForLoadStop(new_contents));
const GURL non_spoofy_blob_url = new_contents->GetLastCommittedURL();
// Now try to URL spoof by embedding an authority to the inner URL using
// `replaceState()` to perform a same-document navigation.
EXPECT_FALSE(
ExecJs(new_contents,
"let host_port = self.origin.split('://')[1];\n"
"let spoof_url = 'blob:http://spoof.com@' + host_port + '/abcd';\n"
"window.history.replaceState({}, '', spoof_url);\n"));
// The spoofy URL should not be shown to the user.
EXPECT_FALSE(
base::MatchPattern(new_contents->GetVisibleURL().spec(), "*spoof*"));
// The currently implemented behavior is a same-document navigation to a
// blocked URL gets rewritten to the current document's URL, i.e.
// `non_spoofy_blob_url`.
// The content of the page stays the same.
EXPECT_EQ(non_spoofy_blob_url, new_contents->GetVisibleURL());
EXPECT_EQ(origin.Serialize(), EvalJs(new_contents, "origin"));
EXPECT_EQ("potato", EvalJs(new_contents, "document.body.innerText"));
std::string window_location =
EvalJs(new_contents, "window.location.href;").ExtractString();
EXPECT_FALSE(base::MatchPattern(window_location, "*spoof*"));
}
} // namespace content