1// Copyright (c) 2012 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 CONTENT_CHILD_NPAPI_PLUGIN_STREAM_URL_H_
6#define CONTENT_CHILD_NPAPI_PLUGIN_STREAM_URL_H_
7
8#include <vector>
9
10#include "base/memory/scoped_ptr.h"
11#include "content/child/npapi/plugin_stream.h"
12#include "content/child/npapi/webplugin_resource_client.h"
13#include "url/gurl.h"
14
15namespace content {
16class PluginInstance;
17class PluginURLFetcher;
18
19// A NPAPI Stream based on a URL.
20class PluginStreamUrl : public PluginStream,
21                        public WebPluginResourceClient {
22 public:
23  // Create a new stream for sending to the plugin by fetching
24  // a URL. If notifyNeeded is set, then the plugin will be notified
25  // when the stream has been fully sent to the plugin.  Initialize
26  // must be called before the object is used.
27  PluginStreamUrl(unsigned long resource_id,
28                  const GURL &url,
29                  PluginInstance *instance,
30                  bool notify_needed,
31                  void *notify_data);
32
33  void SetPluginURLFetcher(PluginURLFetcher* fetcher);
34
35  void URLRedirectResponse(bool allow);
36
37  void FetchRange(const std::string& range);
38
39  // Stop sending the stream to the client.
40  // Overrides the base Close so we can cancel our fetching the URL if
41  // it is still loading.
42  virtual bool Close(NPReason reason) OVERRIDE;
43  virtual WebPluginResourceClient* AsResourceClient() OVERRIDE;
44  virtual void CancelRequest() OVERRIDE;
45
46  // WebPluginResourceClient methods
47  virtual void WillSendRequest(const GURL& url, int http_status_code) OVERRIDE;
48  virtual void DidReceiveResponse(const std::string& mime_type,
49                                  const std::string& headers,
50                                  uint32 expected_length,
51                                  uint32 last_modified,
52                                  bool request_is_seekable) OVERRIDE;
53  virtual void DidReceiveData(const char* buffer,
54                              int length,
55                              int data_offset) OVERRIDE;
56  virtual void DidFinishLoading(unsigned long resource_id) OVERRIDE;
57  virtual void DidFail(unsigned long resource_id) OVERRIDE;
58  virtual bool IsMultiByteResponseExpected() OVERRIDE;
59  virtual int ResourceId() OVERRIDE;
60  virtual void AddRangeRequestResourceId(unsigned long resource_id) OVERRIDE;
61
62 protected:
63  virtual ~PluginStreamUrl();
64
65 private:
66  void SetDeferLoading(bool value);
67
68  // In case of a redirect, this can be called to update the url.  But it must
69  // be called before Open().
70  void UpdateUrl(const char* url);
71
72  GURL url_;
73  unsigned long id_;
74
75  // Ids of additional resources requested via range requests issued on
76  // seekable streams.
77  // This is used when we're loading resources through the renderer, i.e. not
78  // using plugin_url_fetcher_.
79  std::vector<unsigned long> range_requests_;
80  // This is used when we're using plugin_url_fetcher_.
81  std::vector<PluginURLFetcher*> range_request_fetchers_;
82
83  // If the plugin participates in HTTP URL redirect handling then this member
84  // holds the url being redirected to while we wait for the plugin to make a
85  // decision on whether to allow or deny the redirect.
86  std::string pending_redirect_url_;
87
88  scoped_ptr<PluginURLFetcher> plugin_url_fetcher_;
89
90  DISALLOW_COPY_AND_ASSIGN(PluginStreamUrl);
91};
92
93}  // namespace content
94
95#endif // CONTENT_CHILD_NPAPI_PLUGIN_STREAM_URL_H_
96