66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
// Copyright 2014 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef COMPONENTS_NACL_RENDERER_MANIFEST_DOWNLOADER_H_
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#define COMPONENTS_NACL_RENDERER_MANIFEST_DOWNLOADER_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <memory>
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#include <string>
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#include "base/functional/callback.h"
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#include "components/nacl/renderer/ppb_nacl_private.h"
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#include "third_party/blink/public/web/web_associated_url_loader_client.h"
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namespace blink {
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class WebAssociatedURLLoader;
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struct WebURLError;
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class WebURLRequest;
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class WebURLResponse;
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}
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namespace nacl {
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// Downloads a NaCl manifest (.nmf) and returns the contents of the file to
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// caller through a callback.
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class ManifestDownloader : public blink::WebAssociatedURLLoaderClient {
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public:
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typedef base::OnceCallback<void(PP_NaClError, const std::string&)> Callback;
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// This is a pretty arbitrary limit on the byte size of the NaCl manifest
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// file.
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// Note that the resulting string object has to have at least one byte extra
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// for the null termination character.
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static const size_t kNaClManifestMaxFileBytes = 1024 * 1024;
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ManifestDownloader(std::unique_ptr<blink::WebAssociatedURLLoader> url_loader,
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bool is_installed,
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Callback cb);
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~ManifestDownloader() override;
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void Load(const blink::WebURLRequest& request);
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private:
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void Close();
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// WebAssociatedURLLoaderClient implementation.
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void DidReceiveResponse(const blink::WebURLResponse& response) override;
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void DidReceiveData(const char* data, int data_length) override;
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void DidFinishLoading() override;
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void DidFail(const blink::WebURLError& error) override;
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std::unique_ptr<blink::WebAssociatedURLLoader> url_loader_;
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bool is_installed_;
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Callback cb_;
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std::string buffer_;
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int status_code_;
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PP_NaClError pp_nacl_error_;
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};
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} // namespace nacl
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#endif // COMPONENTS_NACL_RENDERER_MANIFEST_DOWNLOADER_H_
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