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Unified Diff: content/browser/blob_storage/blob_url_browsertest.cc

Issue 2365433002: (re-land) Disallow navigations to blob URLs with non-canonical origins. (Closed)
Patch Set: Remove newline Created 4 years, 3 months ago
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Index: content/browser/blob_storage/blob_url_browsertest.cc
diff --git a/content/browser/blob_storage/blob_url_browsertest.cc b/content/browser/blob_storage/blob_url_browsertest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f25ee5b258fa24a455d7e1d13e7f6f8f42299705
--- /dev/null
+++ b/content/browser/blob_storage/blob_url_browsertest.cc
@@ -0,0 +1,188 @@
+// Copyright 2016 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 "base/macros.h"
+#include "base/strings/pattern.h"
+#include "build/build_config.h"
+#include "content/browser/web_contents/web_contents_impl.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 "url/gurl.h"
+#include "url/origin.h"
+
+namespace content {
+
+// Tests of the blob: URL scheme.
+class BlobUrlBrowserTest : public ContentBrowserTest {
+ public:
+ BlobUrlBrowserTest() {}
+
+ void SetUpOnMainThread() override {
+ host_resolver()->AddRule("*", "127.0.0.1");
+ ASSERT_TRUE(embedded_test_server()->Start());
+ SetupCrossSiteRedirector(embedded_test_server());
+ }
+
+ private:
+ DISALLOW_COPY_AND_ASSIGN(BlobUrlBrowserTest);
+};
+
+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.
+ 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(
+ ExecuteScript(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();
+ WaitForLoadStop(new_contents);
+
+ EXPECT_TRUE(
+ base::MatchPattern(new_contents->GetVisibleURL().spec(), "blob:null/*"));
+ std::string page_content;
+ EXPECT_TRUE(ExecuteScriptAndExtractString(
+ new_contents,
+ "domAutomationController.send("
+ " document.origin + ' ' + document.body.innerText);",
+ &page_content));
+ EXPECT_EQ("null potato", page_content);
+}
+
+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);
+ NavigateToURL(shell(), url);
+
+ ShellAddedObserver new_shell_observer;
+ EXPECT_TRUE(ExecuteScript(
+ 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();
+ WaitForLoadStop(new_contents);
+
+ EXPECT_TRUE(base::MatchPattern(new_contents->GetVisibleURL().spec(),
+ "blob:" + origin.Serialize() + "/*"));
+ std::string page_content;
+ EXPECT_TRUE(ExecuteScriptAndExtractString(
+ new_contents,
+ "domAutomationController.send("
+ " document.origin + ' ' + document.body.innerText);",
+ &page_content));
+ EXPECT_EQ(origin.Serialize() + " potato", page_content);
+}
+
+// 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);
+ NavigateToURL(shell(), url);
+
+ ShellAddedObserver new_shell_observer;
+ EXPECT_TRUE(ExecuteScript(
+ 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.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();
+ 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.
+ EXPECT_EQ("about:blank", new_contents->GetVisibleURL().spec());
+ std::string page_content;
+ EXPECT_TRUE(ExecuteScriptAndExtractString(
+ new_contents,
+ "domAutomationController.send("
+ " document.origin + ' ' + document.body.innerText);",
+ &page_content));
+ EXPECT_EQ(origin.Serialize() + " ", page_content); // 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);
+ NavigateToURL(shell(), url);
+
+ ShellAddedObserver new_shell_observer;
+ EXPECT_TRUE(ExecuteScript(
+ shell(),
+ "var spoof_fn = function () {\n"
+ " host_port = document.origin.split('://')[1];\n"
+ " spoof_url = 'blob:http://spoof.com@' + host_port + '/abcd';\n"
+ " window.history.replaceState({}, '', spoof_url);\n"
+ "};\n"
+ "args = ['<body>potato<scr', 'ipt>(', spoof_fn, ')();</scri', 'pt>'];\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();
+ 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. The content of the page stays the same.
+ EXPECT_EQ("about:blank", new_contents->GetVisibleURL().spec());
+ std::string page_content;
+ EXPECT_TRUE(ExecuteScriptAndExtractString(
+ new_contents,
+ "domAutomationController.send("
+ " document.origin + ' ' + document.body.innerText);",
+ &page_content));
+ EXPECT_EQ(origin.Serialize() + " potato", page_content);
+
+ // TODO(nick): Currently, window.location still reflects the spoof URL.
+ // This seems unfortunate -- can we fix it?
+ std::string window_location;
+ EXPECT_TRUE(ExecuteScriptAndExtractString(
+ new_contents, "domAutomationController.send(window.location.href);",
+ &window_location));
+ EXPECT_TRUE(base::MatchPattern(window_location, "*spoof*"));
+}
+
+} // namespace content
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