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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/nacl/renderer/manifest_downloader.h"
#include <utility>
#include "base/functional/callback.h"
#include "components/nacl/renderer/histogram.h"
#include "components/nacl/renderer/nexe_load_manager.h"
#include "net/base/net_errors.h"
#include "third_party/blink/public/platform/web_url_error.h"
#include "third_party/blink/public/platform/web_url_response.h"
#include "third_party/blink/public/web/web_associated_url_loader.h"
namespace nacl {
ManifestDownloader::ManifestDownloader(
std::unique_ptr<blink::WebAssociatedURLLoader> url_loader,
bool is_installed,
Callback cb)
: url_loader_(std::move(url_loader)),
is_installed_(is_installed),
cb_(std::move(cb)),
status_code_(-1),
pp_nacl_error_(PP_NACL_ERROR_LOAD_SUCCESS) {
CHECK(!cb_.is_null());
}
ManifestDownloader::~ManifestDownloader() { }
void ManifestDownloader::Load(const blink::WebURLRequest& request) {
url_loader_->LoadAsynchronously(request, this);
}
void ManifestDownloader::DidReceiveResponse(
const blink::WebURLResponse& response) {
if (response.HttpStatusCode() != 200)
pp_nacl_error_ = PP_NACL_ERROR_MANIFEST_LOAD_URL;
status_code_ = response.HttpStatusCode();
}
void ManifestDownloader::DidReceiveData(base::span<const char> data) {
if (buffer_.size() + data.size() > kNaClManifestMaxFileBytes) {
pp_nacl_error_ = PP_NACL_ERROR_MANIFEST_TOO_LARGE;
buffer_.clear();
}
if (pp_nacl_error_ == PP_NACL_ERROR_LOAD_SUCCESS)
buffer_.append(data.data(), data.size());
}
void ManifestDownloader::Close() {
// We log the status code here instead of in didReceiveResponse so that we
// always log a histogram value, even when we never receive a status code.
HistogramHTTPStatusCode(
is_installed_ ? "NaCl.HttpStatusCodeClass.Manifest.InstalledApp" :
"NaCl.HttpStatusCodeClass.Manifest.NotInstalledApp",
status_code_);
std::move(cb_).Run(pp_nacl_error_, buffer_);
delete this;
}
void ManifestDownloader::DidFinishLoading() {
Close();
}
void ManifestDownloader::DidFail(const blink::WebURLError& error) {
// TODO(teravest): Find a place to share this code with PepperURLLoaderHost.
pp_nacl_error_ = PP_NACL_ERROR_MANIFEST_LOAD_URL;
switch (error.reason()) {
case net::ERR_ACCESS_DENIED:
case net::ERR_NETWORK_ACCESS_DENIED:
pp_nacl_error_ = PP_NACL_ERROR_MANIFEST_NOACCESS_URL;
break;
}
if (error.is_web_security_violation())
pp_nacl_error_ = PP_NACL_ERROR_MANIFEST_NOACCESS_URL;
Close();
}
} // namespace nacl
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