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content / browser / network / network_errors_listing_ui.cc [blame]
// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/342213636): Remove this and spanify to fix the errors.
#pragma allow_unsafe_buffers
#endif
#include "content/browser/network/network_errors_listing_ui.h"
#include <memory>
#include <utility>
#include "base/functional/bind.h"
#include "base/json/json_writer.h"
#include "base/memory/ref_counted_memory.h"
#include "base/values.h"
#include "content/grit/network_errors_resources.h"
#include "content/grit/network_errors_resources_map.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
#include "content/public/common/url_constants.h"
#include "net/base/net_errors.h"
#include "net/log/net_log_util.h"
static const char kNetworkErrorDataFile[] = "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 {
base::Value::List GetNetworkErrorData() {
base::Value::Dict error_codes = net::GetNetConstants();
const base::Value::Dict* net_error_codes_dict =
error_codes.FindDict(kNetworkErrorKey);
DCHECK(net_error_codes_dict);
base::Value::List error_list;
for (auto it = net_error_codes_dict->begin();
it != net_error_codes_dict->end(); ++it) {
const int error_code = it->second.GetInt();
// 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) {
base::Value::Dict error;
error.Set(kErrorIdField, error_code);
error.Set(kErrorCodeField, it->first);
error_list.Append(std::move(error));
}
}
return error_list;
}
bool ShouldHandleWebUIRequestCallback(const std::string& path) {
return path == kNetworkErrorDataFile;
}
void HandleWebUIRequestCallback(BrowserContext* current_context,
const std::string& path,
WebUIDataSource::GotDataCallback callback) {
DCHECK(ShouldHandleWebUIRequestCallback(path));
base::Value::Dict data;
data.Set(kErrorCodesDataName, GetNetworkErrorData());
std::string json_string;
base::JSONWriter::Write(data, &json_string);
std::move(callback).Run(
base::MakeRefCounted<base::RefCountedString>(std::move(json_string)));
}
} // namespace
NetworkErrorsListingUI::NetworkErrorsListingUI(WebUI* web_ui)
: WebUIController(web_ui) {
// Set up the chrome://network-errors source.
WebUIDataSource* html_source = WebUIDataSource::CreateAndAdd(
web_ui->GetWebContents()->GetBrowserContext(),
kChromeUINetworkErrorsListingHost);
// Add required resources.
html_source->UseStringsJs();
html_source->AddResourcePaths(
base::make_span(kNetworkErrorsResources, kNetworkErrorsResourcesSize));
html_source->SetDefaultResource(
IDR_NETWORK_ERRORS_NETWORK_ERRORS_LISTING_HTML);
html_source->SetRequestFilter(
base::BindRepeating(&ShouldHandleWebUIRequestCallback),
base::BindRepeating(&HandleWebUIRequestCallback,
web_ui->GetWebContents()->GetBrowserContext()));
}
} // namespace content