1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef WEBKIT_BROWSER_BLOB_BLOB_URL_REQUEST_JOB_FACTORY_H_
6#define WEBKIT_BROWSER_BLOB_BLOB_URL_REQUEST_JOB_FACTORY_H_
7
8#include "base/compiler_specific.h"
9#include "base/memory/ref_counted.h"
10#include "base/memory/scoped_ptr.h"
11#include "net/url_request/url_request.h"
12#include "net/url_request/url_request_job_factory.h"
13#include "webkit/browser/webkit_storage_browser_export.h"
14
15namespace base {
16class MessageLoopProxy;
17}  // namespace base
18
19namespace fileapi {
20class FileSystemContext;
21}  // namespace fileapi
22
23namespace net {
24class URLRequestContext;
25}  // namespace net
26
27namespace webkit_blob {
28
29class BlobData;
30class BlobDataHandle;
31class BlobStorageContext;
32
33class WEBKIT_STORAGE_BROWSER_EXPORT BlobProtocolHandler
34    : public net::URLRequestJobFactory::ProtocolHandler {
35 public:
36  // A helper to manufacture an URLRequest to retrieve the given blob.
37  static scoped_ptr<net::URLRequest> CreateBlobRequest(
38      scoped_ptr<BlobDataHandle> blob_data_handle,
39      const net::URLRequestContext* request_context,
40      net::URLRequest::Delegate* request_delegate);
41
42  // This class ignores the request's URL and uses the value given
43  // to SetRequestedBlobDataHandle instead.
44  static void SetRequestedBlobDataHandle(
45      net::URLRequest* request,
46      scoped_ptr<BlobDataHandle> blob_data_handle);
47
48  BlobProtocolHandler(BlobStorageContext* context,
49                      fileapi::FileSystemContext* file_system_context,
50                      base::MessageLoopProxy* file_loop_proxy);
51  virtual ~BlobProtocolHandler();
52
53  virtual net::URLRequestJob* MaybeCreateJob(
54      net::URLRequest* request,
55      net::NetworkDelegate* network_delegate) const OVERRIDE;
56
57 private:
58  scoped_refptr<BlobData> LookupBlobData(
59      net::URLRequest* request) const;
60
61  base::WeakPtr<BlobStorageContext> context_;
62  const scoped_refptr<fileapi::FileSystemContext> file_system_context_;
63  const scoped_refptr<base::MessageLoopProxy> file_loop_proxy_;
64
65  DISALLOW_COPY_AND_ASSIGN(BlobProtocolHandler);
66};
67
68}  // namespace webkit_blob
69
70#endif  // WEBKIT_BROWSER_BLOB_BLOB_URL_REQUEST_JOB_FACTORY_H_
71