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// Copyright 2015 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 "content/browser/net/network_errors_listing_ui.h"
#include <memory>
#include <utility>
#include "base/bind.h"
#include "base/json/json_writer.h"
#include "base/memory/ref_counted_memory.h"
#include "base/values.h"
#include "content/grit/content_resources.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/url_constants.h"
#include "net/base/net_errors.h"
#include "net/log/net_log_util.h"
static const char kDataFile[] = "network-error-data.json";
static const char kErrorCodeField[] = "errorCode";
static const char kErrorCodesDataName[] = "errorCodes";
static const char kErrorIdField[] = "errorId";
static const char kNetworkErrorKey[] = "netError";
namespace content {
namespace {
std::unique_ptr<base::ListValue> GetNetworkErrorData() {
std::unique_ptr<base::DictionaryValue> error_codes = net::GetNetConstants();
const base::DictionaryValue* net_error_codes_dict = nullptr;
for (base::DictionaryValue::Iterator itr(*error_codes); !itr.IsAtEnd();
itr.Advance()) {
if (itr.key() == kNetworkErrorKey) {
itr.value().GetAsDictionary(&net_error_codes_dict);
break;
}
}
std::unique_ptr<base::ListValue> error_list(new base::ListValue());
for (base::DictionaryValue::Iterator itr(*net_error_codes_dict);
!itr.IsAtEnd(); itr.Advance()) {
int error_code;
itr.value().GetAsInteger(&error_code);
// Exclude the aborted and pending codes as these don't return a page.
if (error_code != net::Error::ERR_IO_PENDING &&
error_code != net::Error::ERR_ABORTED) {
std::unique_ptr<base::DictionaryValue> error(new base::DictionaryValue());
error->SetInteger(kErrorIdField, error_code);
error->SetString(kErrorCodeField, itr.key());
error_list->Append(std::move(error));
}
}
return error_list;
}
bool HandleRequestCallback(BrowserContext* current_context,
const std::string& path,
const WebUIDataSource::GotDataCallback& callback) {
if (path != kDataFile)
return false;
base::DictionaryValue data;
data.Set(kErrorCodesDataName, GetNetworkErrorData().release());
std::string json_string;
base::JSONWriter::Write(data, &json_string);
callback.Run(base::RefCountedString::TakeString(&json_string));
return true;
}
} // namespace
NetworkErrorsListingUI::NetworkErrorsListingUI(WebUI* web_ui)
: WebUIController(web_ui) {
// Set up the chrome://network-errors source.
WebUIDataSource* html_source =
WebUIDataSource::Create(kChromeUINetworkErrorsListingHost);
// Add required resources.
html_source->SetJsonPath("strings.js");
html_source->AddResourcePath("network_errors_listing.css",
IDR_NETWORK_ERROR_LISTING_CSS);
html_source->AddResourcePath("network_errors_listing.js",
IDR_NETWORK_ERROR_LISTING_JS);
html_source->SetDefaultResource(IDR_NETWORK_ERROR_LISTING_HTML);
html_source->SetRequestFilter(
base::Bind(&HandleRequestCallback,
web_ui->GetWebContents()->GetBrowserContext()));
BrowserContext* browser_context =
web_ui->GetWebContents()->GetBrowserContext();
WebUIDataSource::Add(browser_context, html_source);
}
} // namespace content
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