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// Copyright (c) 2012 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.
#ifndef CONTENT_BROWSER_LOADER_CERTIFICATE_RESOURCE_HANDLER_H_
#define CONTENT_BROWSER_LOADER_CERTIFICATE_RESOURCE_HANDLER_H_
#include <string>
#include <utility>
#include <vector>
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "content/browser/loader/resource_handler.h"
#include "net/base/mime_util.h"
namespace net {
class IOBuffer;
class URLRequest;
class URLRequestStatus;
} // namespace net
namespace content {
// This class handles certificate mime types such as:
// - "application/x-x509-user-cert"
// - "application/x-x509-ca-cert"
// - "application/x-pkcs12"
//
class CertificateResourceHandler : public ResourceHandler {
public:
explicit CertificateResourceHandler(net::URLRequest* request);
~CertificateResourceHandler() override;
bool OnUploadProgress(uint64 position, uint64 size) override;
// Not needed, as this event handler ought to be the final resource.
bool OnRequestRedirected(const net::RedirectInfo& redirect_info,
ResourceResponse* resp,
bool* defer) override;
// Check if this indeed an X509 cert.
bool OnResponseStarted(ResourceResponse* resp, bool* defer) override;
// Pass-through implementation.
bool OnWillStart(const GURL& url, bool* defer) override;
// Pass-through implementation.
bool OnBeforeNetworkStart(const GURL& url, bool* defer) override;
// Create a new buffer to store received data.
bool OnWillRead(scoped_refptr<net::IOBuffer>* buf,
int* buf_size,
int min_size) override;
// A read was completed, maybe allocate a new buffer for further data.
bool OnReadCompleted(int bytes_read, bool* defer) override;
// Done downloading the certificate.
void OnResponseCompleted(const net::URLRequestStatus& urs,
const std::string& sec_info,
bool* defer) override;
// N/A to cert downloading.
void OnDataDownloaded(int bytes_downloaded) override;
private:
typedef std::vector<std::pair<scoped_refptr<net::IOBuffer>,
size_t> > ContentVector;
void AssembleResource();
size_t content_length_;
ContentVector buffer_;
scoped_refptr<net::IOBuffer> read_buffer_;
scoped_refptr<net::IOBuffer> resource_buffer_; // Downloaded certificate.
net::CertificateMimeType cert_type_;
DISALLOW_COPY_AND_ASSIGN(CertificateResourceHandler);
};
} // namespace content
#endif // CONTENT_BROWSER_LOADER_CERTIFICATE_RESOURCE_HANDLER_H_
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