OpenURL post data handling.

content/browser/cross_site_transfer_browsertest.cc

 // Copyright (c) 2012 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/command_line.h"
 #include "base/macros.h"
 #include "base/strings/stringprintf.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/public/browser/navigation_entry.h"
+#include "content/public/browser/render_view_host.h"
 #include "content/public/browser/resource_dispatcher_host_delegate.h"
 #include "content/public/browser/resource_throttle.h"
 #include "content/public/browser/web_contents.h"
+#include "content/public/common/renderer_preferences.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_navigation_observer.h"
 #include "content/shell/browser/shell.h"
 #include "content/shell/browser/shell_content_browser_client.h"
 #include "content/shell/browser/shell_resource_dispatcher_host_delegate.h"
 #include "net/base/escape.h"
 #include "net/dns/mock_host_resolver.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
@@ skipping 388 matching lines @@
   EXPECT_EQ(1, controller.GetEntryCount());
   EXPECT_EQ(0, controller.GetCurrentEntryIndex());
   EXPECT_EQ(url1, controller.GetEntryAtIndex(0)->GetURL());
 
   // Make sure the request for url2 did not complete.
   EXPECT_FALSE(tracking_delegate().WaitForTrackedURLAndGetCompleted());
 
   shell()->web_contents()->SetDelegate(old_delegate);
 }
 
+// Tests that POST body is not lost when decidePolicyForNavigation tells the
+// renderer to route the request via FrameHostMsg_OpenURL sent to the browser.
+// See also https://crbug.com/344348.
+IN_PROC_BROWSER_TEST_F(CrossSiteTransferTest, PostViaOpenUrlMsg) {

[Łukasz Anforowicz, 2016/05/20 23:24:22]

Is this a reasonable location for this new test?  Note that there is nothing
"cross-site" about the test - the main feature of the test is that it submits a
method=POST form while browser_handles_all_top_level_requests is set to true.

Note - maybe the need for this test will go away if fix for
https://crbug.com/585284 will start exercising OpenURL path for remote frames
(i.e. even if browser_handles_all_top_level_requests is not set to true).

+  GURL main_url(
+      embedded_test_server()->GetURL("/form_that_posts_to_echoall.html"));
+  EXPECT_TRUE(NavigateToURL(shell(), main_url));
+
+  // Ask the renderer to go through OpenURL FrameHostMsg_OpenURL IPC message.
+  // Without this, the test wouldn't repro https://crbug.com/344348.
+  shell()
+      ->web_contents()
+      ->GetMutableRendererPrefs()
+      ->browser_handles_all_top_level_requests = true;
+  shell()->web_contents()->GetRenderViewHost()->SyncRendererPrefs();
+
+  // Submit the form.
+  TestNavigationObserver form_post_observer(shell()->web_contents(), 1);
+  EXPECT_TRUE(ExecuteScript(shell()->web_contents(),
+                            "document.getElementById('form').submit();"));
+  form_post_observer.Wait();
+
+  // Verify that we arrived at the expected, redirected location.
+  GURL target_url(embedded_test_server()->GetURL("/echoall"));
+  EXPECT_EQ(target_url, shell()->web_contents()->GetLastCommittedURL());
+
+  // Verify that POST body was correctly passed to the server.
+  std::string body;
+  EXPECT_TRUE(ExecuteScriptAndExtractString(
+      shell()->web_contents(),
+      "window.domAutomationController.send("
+      "document.getElementsByTagName('pre')[0].innerText);",
+      &body));
+  EXPECT_EQ("text=value\n", body);
+}
+
 }  // namespace content