blob: 516194cd7e93825142962c8cef8b41d21c0b04c4 [file] [log] [blame]
// Copyright (c) 2013 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 "chrome/renderer/net/net_error_helper.h"
#include <string>
#include "base/command_line.h"
#include "base/i18n/rtl.h"
#include "base/json/json_writer.h"
#include "base/metrics/histogram.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/localized_error.h"
#include "chrome/common/render_messages.h"
#include "chrome/grit/renderer_resources.h"
#include "chrome/renderer/net/net_error_page_controller.h"
#include "components/error_page/common/error_page_params.h"
#include "components/error_page/common/net_error_info.h"
#include "content/public/common/content_client.h"
#include "content/public/common/url_constants.h"
#include "content/public/renderer/content_renderer_client.h"
#include "content/public/renderer/document_state.h"
#include "content/public/renderer/render_frame.h"
#include "content/public/renderer/render_thread.h"
#include "content/public/renderer/render_view.h"
#include "content/public/renderer/resource_fetcher.h"
#include "ipc/ipc_message.h"
#include "ipc/ipc_message_macros.h"
#include "third_party/WebKit/public/platform/WebURL.h"
#include "third_party/WebKit/public/platform/WebURLError.h"
#include "third_party/WebKit/public/platform/WebURLRequest.h"
#include "third_party/WebKit/public/platform/WebURLResponse.h"
#include "third_party/WebKit/public/web/WebDataSource.h"
#include "third_party/WebKit/public/web/WebDocument.h"
#include "third_party/WebKit/public/web/WebLocalFrame.h"
#include "third_party/WebKit/public/web/WebView.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/webui/jstemplate_builder.h"
#include "url/gurl.h"
using base::JSONWriter;
using chrome_common_net::DnsProbeStatus;
using chrome_common_net::DnsProbeStatusToString;
using content::DocumentState;
using content::RenderFrame;
using content::RenderFrameObserver;
using content::RenderThread;
using content::kUnreachableWebDataURL;
using error_page::ErrorPageParams;
using error_page::NetErrorHelperCore;
namespace {
// Number of seconds to wait for the navigation correction service to return
// suggestions. If it takes too long, just use the local error page.
static const int kNavigationCorrectionFetchTimeoutSec = 3;
NetErrorHelperCore::PageType GetLoadingPageType(const blink::WebFrame* frame) {
GURL url = frame->provisionalDataSource()->request().url();
if (!url.is_valid() || url.spec() != kUnreachableWebDataURL)
return NetErrorHelperCore::NON_ERROR_PAGE;
return NetErrorHelperCore::ERROR_PAGE;
}
NetErrorHelperCore::FrameType GetFrameType(const blink::WebFrame* frame) {
if (!frame->parent())
return NetErrorHelperCore::MAIN_FRAME;
return NetErrorHelperCore::SUB_FRAME;
}
} // namespace
NetErrorHelper::NetErrorHelper(RenderFrame* render_frame)
: RenderFrameObserver(render_frame),
content::RenderFrameObserverTracker<NetErrorHelper>(render_frame) {
RenderThread::Get()->AddObserver(this);
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
bool auto_reload_enabled =
command_line->HasSwitch(switches::kEnableOfflineAutoReload);
bool auto_reload_visible_only =
command_line->HasSwitch(switches::kEnableOfflineAutoReloadVisibleOnly);
core_.reset(new NetErrorHelperCore(this,
auto_reload_enabled,
auto_reload_visible_only,
!render_frame->IsHidden()));
}
NetErrorHelper::~NetErrorHelper() {
RenderThread::Get()->RemoveObserver(this);
}
void NetErrorHelper::ReloadButtonPressed() {
core_->ExecuteButtonPress(NetErrorHelperCore::RELOAD_BUTTON);
}
void NetErrorHelper::ShowSavedCopyButtonPressed() {
core_->ExecuteButtonPress(NetErrorHelperCore::SHOW_SAVED_COPY_BUTTON);
}
void NetErrorHelper::MoreButtonPressed() {
core_->ExecuteButtonPress(NetErrorHelperCore::MORE_BUTTON);
}
void NetErrorHelper::DidStartProvisionalLoad() {
blink::WebFrame* frame = render_frame()->GetWebFrame();
core_->OnStartLoad(GetFrameType(frame), GetLoadingPageType(frame));
}
void NetErrorHelper::DidCommitProvisionalLoad(bool is_new_navigation,
bool is_same_page_navigation) {
blink::WebFrame* frame = render_frame()->GetWebFrame();
core_->OnCommitLoad(GetFrameType(frame), frame->document().url());
}
void NetErrorHelper::DidFinishLoad() {
blink::WebFrame* frame = render_frame()->GetWebFrame();
core_->OnFinishLoad(GetFrameType(frame));
}
void NetErrorHelper::OnStop() {
core_->OnStop();
}
void NetErrorHelper::WasShown() {
core_->OnWasShown();
}
void NetErrorHelper::WasHidden() {
core_->OnWasHidden();
}
bool NetErrorHelper::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(NetErrorHelper, message)
IPC_MESSAGE_HANDLER(ChromeViewMsg_NetErrorInfo, OnNetErrorInfo)
IPC_MESSAGE_HANDLER(ChromeViewMsg_SetNavigationCorrectionInfo,
OnSetNavigationCorrectionInfo);
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void NetErrorHelper::NetworkStateChanged(bool enabled) {
core_->NetworkStateChanged(enabled);
}
void NetErrorHelper::GetErrorHTML(
blink::WebFrame* frame,
const blink::WebURLError& error,
bool is_failed_post,
std::string* error_html) {
core_->GetErrorHTML(GetFrameType(frame), error, is_failed_post, error_html);
}
bool NetErrorHelper::ShouldSuppressErrorPage(blink::WebFrame* frame,
const GURL& url) {
return core_->ShouldSuppressErrorPage(GetFrameType(frame), url);
}
void NetErrorHelper::TrackClick(int tracking_id) {
core_->TrackClick(tracking_id);
}
void NetErrorHelper::GenerateLocalizedErrorPage(
const blink::WebURLError& error,
bool is_failed_post,
scoped_ptr<ErrorPageParams> params,
bool* reload_button_shown,
bool* show_saved_copy_button_shown,
std::string* error_html) const {
error_html->clear();
int resource_id = IDR_NET_ERROR_HTML;
const base::StringPiece template_html(
ResourceBundle::GetSharedInstance().GetRawDataResource(resource_id));
if (template_html.empty()) {
NOTREACHED() << "unable to load template.";
} else {
base::DictionaryValue error_strings;
LocalizedError::GetStrings(error.reason, error.domain.utf8(),
error.unreachableURL, is_failed_post,
error.staleCopyInCache,
RenderThread::Get()->GetLocale(),
render_frame()->GetRenderView()->
GetAcceptLanguages(),
params.Pass(), &error_strings);
*reload_button_shown = error_strings.Get("reloadButton", NULL);
*show_saved_copy_button_shown =
error_strings.Get("showSavedCopyButton", NULL);
// "t" is the id of the template's root node.
*error_html = webui::GetTemplatesHtml(template_html, &error_strings, "t");
}
}
void NetErrorHelper::LoadErrorPageInMainFrame(const std::string& html,
const GURL& failed_url) {
blink::WebView* web_view = render_frame()->GetRenderView()->GetWebView();
if (!web_view)
return;
blink::WebFrame* frame = web_view->mainFrame();
frame->loadHTMLString(html, GURL(kUnreachableWebDataURL), failed_url, true);
}
void NetErrorHelper::EnablePageHelperFunctions() {
NetErrorPageController::Install(render_frame());
}
void NetErrorHelper::UpdateErrorPage(const blink::WebURLError& error,
bool is_failed_post) {
base::DictionaryValue error_strings;
LocalizedError::GetStrings(error.reason,
error.domain.utf8(),
error.unreachableURL,
is_failed_post,
error.staleCopyInCache,
RenderThread::Get()->GetLocale(),
render_frame()->GetRenderView()->
GetAcceptLanguages(),
scoped_ptr<ErrorPageParams>(),
&error_strings);
std::string json;
JSONWriter::Write(&error_strings, &json);
std::string js = "if (window.updateForDnsProbe) "
"updateForDnsProbe(" + json + ");";
base::string16 js16;
if (!base::UTF8ToUTF16(js.c_str(), js.length(), &js16)) {
NOTREACHED();
return;
}
render_frame()->ExecuteJavaScript(js16);
}
void NetErrorHelper::FetchNavigationCorrections(
const GURL& navigation_correction_url,
const std::string& navigation_correction_request_body) {
DCHECK(!correction_fetcher_.get());
blink::WebView* web_view = render_frame()->GetRenderView()->GetWebView();
if (!web_view)
return;
blink::WebFrame* frame = web_view->mainFrame();
correction_fetcher_.reset(
content::ResourceFetcher::Create(navigation_correction_url));
correction_fetcher_->SetMethod("POST");
correction_fetcher_->SetBody(navigation_correction_request_body);
correction_fetcher_->SetHeader("Content-Type", "application/json");
correction_fetcher_->Start(
frame,
blink::WebURLRequest::RequestContextInternal,
blink::WebURLRequest::FrameTypeTopLevel,
content::ResourceFetcher::PLATFORM_LOADER,
base::Bind(&NetErrorHelper::OnNavigationCorrectionsFetched,
base::Unretained(this)));
correction_fetcher_->SetTimeout(
base::TimeDelta::FromSeconds(kNavigationCorrectionFetchTimeoutSec));
}
void NetErrorHelper::CancelFetchNavigationCorrections() {
correction_fetcher_.reset();
}
void NetErrorHelper::SendTrackingRequest(
const GURL& tracking_url,
const std::string& tracking_request_body) {
blink::WebView* web_view = render_frame()->GetRenderView()->GetWebView();
if (!web_view)
return;
blink::WebFrame* frame = web_view->mainFrame();
// If there's already a pending tracking request, this will cancel it.
tracking_fetcher_.reset(content::ResourceFetcher::Create(tracking_url));
tracking_fetcher_->SetMethod("POST");
tracking_fetcher_->SetBody(tracking_request_body);
tracking_fetcher_->SetHeader("Content-Type", "application/json");
tracking_fetcher_->Start(
frame,
blink::WebURLRequest::RequestContextInternal,
blink::WebURLRequest::FrameTypeTopLevel,
content::ResourceFetcher::PLATFORM_LOADER,
base::Bind(&NetErrorHelper::OnTrackingRequestComplete,
base::Unretained(this)));
}
void NetErrorHelper::ReloadPage() {
render_frame()->GetWebFrame()->reload(false);
}
void NetErrorHelper::LoadPageFromCache(const GURL& page_url) {
blink::WebFrame* web_frame = render_frame()->GetWebFrame();
DCHECK(!EqualsASCII(web_frame->dataSource()->request().httpMethod(), "POST"));
blink::WebURLRequest request(page_url);
request.setCachePolicy(blink::WebURLRequest::ReturnCacheDataDontLoad);
web_frame->loadRequest(request);
}
void NetErrorHelper::OnNetErrorInfo(int status_num) {
DCHECK(status_num >= 0 && status_num < chrome_common_net::DNS_PROBE_MAX);
DVLOG(1) << "Received status " << DnsProbeStatusToString(status_num);
core_->OnNetErrorInfo(static_cast<DnsProbeStatus>(status_num));
}
void NetErrorHelper::OnSetNavigationCorrectionInfo(
const GURL& navigation_correction_url,
const std::string& language,
const std::string& country_code,
const std::string& api_key,
const GURL& search_url) {
core_->OnSetNavigationCorrectionInfo(navigation_correction_url, language,
country_code, api_key, search_url);
}
void NetErrorHelper::OnNavigationCorrectionsFetched(
const blink::WebURLResponse& response,
const std::string& data) {
// The fetcher may only be deleted after |data| is passed to |core_|. Move
// it to a temporary to prevent any potential re-entrancy issues.
scoped_ptr<content::ResourceFetcher> fetcher(
correction_fetcher_.release());
bool success = (!response.isNull() && response.httpStatusCode() == 200);
core_->OnNavigationCorrectionsFetched(
success ? data : "",
render_frame()->GetRenderView()->GetAcceptLanguages(),
base::i18n::IsRTL());
}
void NetErrorHelper::OnTrackingRequestComplete(
const blink::WebURLResponse& response,
const std::string& data) {
tracking_fetcher_.reset();
}