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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.
#ifndef COMPONENTS_NACL_RENDERER_MANIFEST_DOWNLOADER_H_
#define COMPONENTS_NACL_RENDERER_MANIFEST_DOWNLOADER_H_
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include <string>
#include "base/functional/callback.h"
#include "components/nacl/renderer/ppb_nacl_private.h"
#include "third_party/blink/public/web/web_associated_url_loader_client.h"
namespace blink {
class WebAssociatedURLLoader;
struct WebURLError;
class WebURLRequest;
class WebURLResponse;
}
namespace nacl {
// Downloads a NaCl manifest (.nmf) and returns the contents of the file to
// caller through a callback.
class ManifestDownloader : public blink::WebAssociatedURLLoaderClient {
public:
typedef base::OnceCallback<void(PP_NaClError, const std::string&)> Callback;
// This is a pretty arbitrary limit on the byte size of the NaCl manifest
// file.
// Note that the resulting string object has to have at least one byte extra
// for the null termination character.
static const size_t kNaClManifestMaxFileBytes = 1024 * 1024;
ManifestDownloader(std::unique_ptr<blink::WebAssociatedURLLoader> url_loader,
bool is_installed,
Callback cb);
~ManifestDownloader() override;
void Load(const blink::WebURLRequest& request);
private:
void Close();
// WebAssociatedURLLoaderClient implementation.
void DidReceiveResponse(const blink::WebURLResponse& response) override;
void DidReceiveData(base::span<const char> data) override;
void DidFinishLoading() override;
void DidFail(const blink::WebURLError& error) override;
std::unique_ptr<blink::WebAssociatedURLLoader> url_loader_;
bool is_installed_;
Callback cb_;
std::string buffer_;
int status_code_;
PP_NaClError pp_nacl_error_;
};
} // namespace nacl
#endif // COMPONENTS_NACL_RENDERER_MANIFEST_DOWNLOADER_H_
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