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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/search/new_tab_page_navigation_throttle.h"
#include <utility>
#include "base/metrics/histogram_macros.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/search/search.h"
#include "chrome/common/url_constants.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/browser/page_navigator.h"
#include "content/public/browser/web_contents.h"
#include "net/http/http_response_headers.h"
#include "net/http/http_status_code.h"
#include "url/gurl.h"
NewTabPageNavigationThrottle::NewTabPageNavigationThrottle(
content::NavigationThrottleRegistry& registry)
: content::NavigationThrottle(registry) {}
NewTabPageNavigationThrottle::~NewTabPageNavigationThrottle() = default;
const char* NewTabPageNavigationThrottle::GetNameForLogging() {
return "NewTabPageNavigationThrottle";
}
// static
void NewTabPageNavigationThrottle::MaybeCreateAndAdd(
content::NavigationThrottleRegistry& registry) {
content::NavigationHandle& handle = registry.GetNavigationHandle();
content::WebContents* web_contents = handle.GetWebContents();
Profile* profile =
Profile::FromBrowserContext(web_contents->GetBrowserContext());
if (web_contents->GetVisibleURL() != chrome::kChromeUINewTabURL ||
!search::IsInstantNTPURL(handle.GetURL(), profile)) {
return;
}
registry.AddThrottle(
std::make_unique<NewTabPageNavigationThrottle>(registry));
}
content::NavigationThrottle::ThrottleCheckResult
NewTabPageNavigationThrottle::WillProcessResponse() {
const net::HttpResponseHeaders* headers =
navigation_handle()->GetResponseHeaders();
if (!headers) {
return content::NavigationThrottle::PROCEED;
}
int response_code = headers->response_code();
if (response_code < 400 && response_code != net::HTTP_NO_CONTENT) {
return content::NavigationThrottle::PROCEED;
}
return OpenLocalNewTabPage();
}
content::NavigationThrottle::ThrottleCheckResult
NewTabPageNavigationThrottle::WillFailRequest() {
return OpenLocalNewTabPage();
}
content::NavigationThrottle::ThrottleCheckResult
NewTabPageNavigationThrottle::OpenLocalNewTabPage() {
content::OpenURLParams params =
content::OpenURLParams::FromNavigationHandle(navigation_handle());
params.url = GURL(chrome::kChromeUINewTabPageThirdPartyURL);
params.is_renderer_initiated = false;
navigation_handle()->GetWebContents()->OpenURL(
std::move(params), /*navigation_handle_callback=*/{});
return content::NavigationThrottle::CANCEL_AND_IGNORE;
}
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