| // Copyright 2014 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 <string> |
| |
| #include "base/callback.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "components/nacl/renderer/ppb_nacl_private.h" |
| #include "third_party/WebKit/public/platform/WebURLLoaderClient.h" |
| |
| namespace blink { |
| struct WebURLError; |
| class WebURLLoader; |
| 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::WebURLLoaderClient { |
| public: |
| typedef base::Callback<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(scoped_ptr<blink::WebURLLoader> url_loader, |
| bool is_installed, |
| Callback cb); |
| virtual ~ManifestDownloader(); |
| |
| void Load(const blink::WebURLRequest& request); |
| |
| private: |
| // WebURLLoaderClient implementation. |
| virtual void didReceiveResponse(blink::WebURLLoader* loader, |
| const blink::WebURLResponse& response); |
| virtual void didReceiveData(blink::WebURLLoader* loader, |
| const char* data, |
| int data_length, |
| int encoded_data_length); |
| virtual void didFinishLoading(blink::WebURLLoader* loader, |
| double finish_time, |
| int64_t total_encoded_data_length); |
| virtual void didFail(blink::WebURLLoader* loader, |
| const blink::WebURLError& error); |
| |
| scoped_ptr<blink::WebURLLoader> url_loader_; |
| bool is_installed_; |
| Callback cb_; |
| std::string buffer_; |
| int status_code_; |
| PP_NaClError pp_nacl_error_; |
| }; |
| |
| } // namespace nacl |