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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 "base/command_line.h"
#include "content/browser/frame_host/frame_tree.h"
#include "content/browser/frame_host/frame_tree_node.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/url_constants.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/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"
namespace content {
class FrameTreeBrowserTest : public ContentBrowserTest {
public:
FrameTreeBrowserTest() {}
private:
DISALLOW_COPY_AND_ASSIGN(FrameTreeBrowserTest);
};
// Ensures FrameTree correctly reflects page structure during navigations.
IN_PROC_BROWSER_TEST_F(FrameTreeBrowserTest, FrameTreeShape) {
host_resolver()->AddRule("*", "127.0.0.1");
ASSERT_TRUE(test_server()->Start());
GURL base_url = test_server()->GetURL("files/site_isolation/");
GURL::Replacements replace_host;
std::string host_str("A.com"); // Must stay in scope with replace_host.
replace_host.SetHostStr(host_str);
base_url = base_url.ReplaceComponents(replace_host);
// Load doc without iframes. Verify FrameTree just has root.
// Frame tree:
// Site-A Root
NavigateToURL(shell(), base_url.Resolve("blank.html"));
FrameTreeNode* root =
static_cast<WebContentsImpl*>(shell()->web_contents())->
GetFrameTree()->root();
EXPECT_EQ(0U, root->child_count());
// Add 2 same-site frames. Verify 3 nodes in tree with proper names.
// Frame tree:
// Site-A Root -- Site-A frame1
// \-- Site-A frame2
WindowedNotificationObserver observer1(
content::NOTIFICATION_LOAD_STOP,
content::Source<NavigationController>(
&shell()->web_contents()->GetController()));
NavigateToURL(shell(), base_url.Resolve("frames-X-X.html"));
observer1.Wait();
ASSERT_EQ(2U, root->child_count());
EXPECT_EQ(0U, root->child_at(0)->child_count());
EXPECT_EQ(0U, root->child_at(1)->child_count());
}
// TODO(ajwong): Talk with nasko and merge this functionality with
// FrameTreeShape.
IN_PROC_BROWSER_TEST_F(FrameTreeBrowserTest, FrameTreeShape2) {
ASSERT_TRUE(test_server()->Start());
NavigateToURL(shell(),
test_server()->GetURL("files/frame_tree/top.html"));
WebContentsImpl* wc = static_cast<WebContentsImpl*>(shell()->web_contents());
FrameTreeNode* root = wc->GetFrameTree()->root();
// Check that the root node is properly created.
ASSERT_EQ(3UL, root->child_count());
EXPECT_EQ(std::string(), root->frame_name());
ASSERT_EQ(2UL, root->child_at(0)->child_count());
EXPECT_STREQ("1-1-name", root->child_at(0)->frame_name().c_str());
// Verify the deepest node exists and has the right name.
ASSERT_EQ(2UL, root->child_at(2)->child_count());
EXPECT_EQ(1UL, root->child_at(2)->child_at(1)->child_count());
EXPECT_EQ(0UL, root->child_at(2)->child_at(1)->child_at(0)->child_count());
EXPECT_STREQ("3-1-name",
root->child_at(2)->child_at(1)->child_at(0)->frame_name().c_str());
// Navigate to about:blank, which should leave only the root node of the frame
// tree in the browser process.
NavigateToURL(shell(), test_server()->GetURL("files/title1.html"));
root = wc->GetFrameTree()->root();
EXPECT_EQ(0UL, root->child_count());
EXPECT_EQ(std::string(), root->frame_name());
}
// Test that we can navigate away if the previous renderer doesn't clean up its
// child frames.
IN_PROC_BROWSER_TEST_F(FrameTreeBrowserTest, FrameTreeAfterCrash) {
ASSERT_TRUE(test_server()->Start());
NavigateToURL(shell(),
test_server()->GetURL("files/frame_tree/top.html"));
// Ensure the view and frame are live.
RenderViewHost* rvh = shell()->web_contents()->GetRenderViewHost();
RenderFrameHostImpl* rfh =
static_cast<RenderFrameHostImpl*>(rvh->GetMainFrame());
EXPECT_TRUE(rvh->IsRenderViewLive());
EXPECT_TRUE(rfh->IsRenderFrameLive());
// Crash the renderer so that it doesn't send any FrameDetached messages.
RenderProcessHostWatcher crash_observer(
shell()->web_contents(),
RenderProcessHostWatcher::WATCH_FOR_PROCESS_EXIT);
NavigateToURL(shell(), GURL(kChromeUICrashURL));
crash_observer.Wait();
// The frame tree should be cleared.
WebContentsImpl* wc = static_cast<WebContentsImpl*>(shell()->web_contents());
FrameTreeNode* root = wc->GetFrameTree()->root();
EXPECT_EQ(0UL, root->child_count());
// Ensure the view and frame aren't live anymore.
EXPECT_FALSE(rvh->IsRenderViewLive());
EXPECT_FALSE(rfh->IsRenderFrameLive());
// Navigate to a new URL.
GURL url(test_server()->GetURL("files/title1.html"));
NavigateToURL(shell(), url);
EXPECT_EQ(0UL, root->child_count());
EXPECT_EQ(url, root->current_url());
// Ensure the view and frame are live again.
EXPECT_TRUE(rvh->IsRenderViewLive());
EXPECT_TRUE(rfh->IsRenderFrameLive());
}
// Test that we can navigate away if the previous renderer doesn't clean up its
// child frames.
IN_PROC_BROWSER_TEST_F(FrameTreeBrowserTest, NavigateWithLeftoverFrames) {
host_resolver()->AddRule("*", "127.0.0.1");
ASSERT_TRUE(test_server()->Start());
GURL base_url = test_server()->GetURL("files/site_isolation/");
GURL::Replacements replace_host;
std::string host_str("A.com"); // Must stay in scope with replace_host.
replace_host.SetHostStr(host_str);
base_url = base_url.ReplaceComponents(replace_host);
NavigateToURL(shell(),
test_server()->GetURL("files/frame_tree/top.html"));
// Hang the renderer so that it doesn't send any FrameDetached messages.
// (This navigation will never complete, so don't wait for it.)
shell()->LoadURL(GURL(kChromeUIHangURL));
// Check that the frame tree still has children.
WebContentsImpl* wc = static_cast<WebContentsImpl*>(shell()->web_contents());
FrameTreeNode* root = wc->GetFrameTree()->root();
ASSERT_EQ(3UL, root->child_count());
// Navigate to a new URL. We use LoadURL because NavigateToURL will try to
// wait for the previous navigation to stop.
TestNavigationObserver tab_observer(wc, 1);
shell()->LoadURL(base_url.Resolve("blank.html"));
tab_observer.Wait();
// The frame tree should now be cleared.
EXPECT_EQ(0UL, root->child_count());
}
// Ensure that IsRenderFrameLive is true for main frames and same-site iframes.
IN_PROC_BROWSER_TEST_F(FrameTreeBrowserTest, IsRenderFrameLive) {
host_resolver()->AddRule("*", "127.0.0.1");
ASSERT_TRUE(test_server()->Start());
GURL main_url(test_server()->GetURL("files/frame_tree/top.html"));
NavigateToURL(shell(), main_url);
// It is safe to obtain the root frame tree node here, as it doesn't change.
FrameTreeNode* root = static_cast<WebContentsImpl*>(shell()->web_contents())
->GetFrameTree()->root();
// The root and subframe should each have a live RenderFrame.
EXPECT_TRUE(
root->current_frame_host()->render_view_host()->IsRenderViewLive());
EXPECT_TRUE(root->current_frame_host()->IsRenderFrameLive());
EXPECT_TRUE(root->child_at(0)->current_frame_host()->IsRenderFrameLive());
// Load a same-site page into iframe and it should still be live.
GURL http_url(test_server()->GetURL("files/title1.html"));
NavigateFrameToURL(root->child_at(0), http_url);
EXPECT_TRUE(
root->current_frame_host()->render_view_host()->IsRenderViewLive());
EXPECT_TRUE(root->current_frame_host()->IsRenderFrameLive());
EXPECT_TRUE(root->child_at(0)->current_frame_host()->IsRenderFrameLive());
}
class CrossProcessFrameTreeBrowserTest : public ContentBrowserTest {
public:
CrossProcessFrameTreeBrowserTest() {}
void SetUpCommandLine(base::CommandLine* command_line) override {
command_line->AppendSwitch(switches::kSitePerProcess);
}
private:
DISALLOW_COPY_AND_ASSIGN(CrossProcessFrameTreeBrowserTest);
};
// Ensure that we can complete a cross-process subframe navigation.
#if defined(OS_ANDROID)
#define MAYBE_CreateCrossProcessSubframeProxies DISABLED_CreateCrossProcessSubframeProxies
#else
#define MAYBE_CreateCrossProcessSubframeProxies CreateCrossProcessSubframeProxies
#endif
IN_PROC_BROWSER_TEST_F(CrossProcessFrameTreeBrowserTest,
MAYBE_CreateCrossProcessSubframeProxies) {
host_resolver()->AddRule("*", "127.0.0.1");
ASSERT_TRUE(test_server()->Start());
GURL main_url(test_server()->GetURL("files/site_per_process_main.html"));
NavigateToURL(shell(), main_url);
// It is safe to obtain the root frame tree node here, as it doesn't change.
FrameTreeNode* root = static_cast<WebContentsImpl*>(shell()->web_contents())
->GetFrameTree()->root();
// There should not be a proxy for the root's own SiteInstance.
SiteInstance* root_instance = root->current_frame_host()->GetSiteInstance();
EXPECT_FALSE(root->render_manager()->GetRenderFrameProxyHost(root_instance));
// Load same-site page into iframe.
GURL http_url(test_server()->GetURL("files/title1.html"));
NavigateFrameToURL(root->child_at(0), http_url);
// These must stay in scope with replace_host.
GURL::Replacements replace_host;
std::string foo_com("foo.com");
// Load cross-site page into iframe.
GURL cross_site_url(test_server()->GetURL("files/title2.html"));
replace_host.SetHostStr(foo_com);
cross_site_url = cross_site_url.ReplaceComponents(replace_host);
NavigateFrameToURL(root->child_at(0), cross_site_url);
// Ensure that we have created a new process for the subframe.
ASSERT_EQ(2U, root->child_count());
FrameTreeNode* child = root->child_at(0);
SiteInstance* child_instance = child->current_frame_host()->GetSiteInstance();
RenderViewHost* rvh = child->current_frame_host()->render_view_host();
RenderProcessHost* rph = child->current_frame_host()->GetProcess();
EXPECT_NE(shell()->web_contents()->GetRenderViewHost(), rvh);
EXPECT_NE(shell()->web_contents()->GetSiteInstance(), child_instance);
EXPECT_NE(shell()->web_contents()->GetRenderProcessHost(), rph);
// Ensure that the root node has a proxy for the child node's SiteInstance.
EXPECT_TRUE(root->render_manager()->GetRenderFrameProxyHost(child_instance));
// Also ensure that the child has a proxy for the root node's SiteInstance.
EXPECT_TRUE(child->render_manager()->GetRenderFrameProxyHost(root_instance));
// The nodes should not have proxies for their own SiteInstance.
EXPECT_FALSE(root->render_manager()->GetRenderFrameProxyHost(root_instance));
EXPECT_FALSE(
child->render_manager()->GetRenderFrameProxyHost(child_instance));
// Ensure that the RenderViews and RenderFrames are all live.
EXPECT_TRUE(
root->current_frame_host()->render_view_host()->IsRenderViewLive());
EXPECT_TRUE(
child->current_frame_host()->render_view_host()->IsRenderViewLive());
EXPECT_TRUE(root->current_frame_host()->IsRenderFrameLive());
EXPECT_TRUE(root->child_at(0)->current_frame_host()->IsRenderFrameLive());
}
} // namespace content
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