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  // Stop sending the stream to the client.
38  // Overrides the base Close so we can cancel our fetching the URL if
39  // it is still loading.
40  virtual bool Close(NPReason reason) OVERRIDE;
41  virtual WebPluginResourceClient* AsResourceClient() OVERRIDE;
42  virtual void CancelRequest() OVERRIDE;
43
44  // WebPluginResourceClient methods
45  virtual void WillSendRequest(const GURL& url, int http_status_code) OVERRIDE;
46  virtual void DidReceiveResponse(const std::string& mime_type,
47                                  const std::string& headers,
48                                  uint32 expected_length,
49                                  uint32 last_modified,
50                                  bool request_is_seekable) OVERRIDE;
51  virtual void DidReceiveData(const char* buffer,
52                              int length,
53                              int data_offset) OVERRIDE;
54  virtual void DidFinishLoading(unsigned long resource_id) OVERRIDE;
55  virtual void DidFail(unsigned long resource_id) OVERRIDE;
56  virtual bool IsMultiByteResponseExpected() OVERRIDE;
57  virtual int ResourceId() OVERRIDE;
58  virtual void AddRangeRequestResourceId(unsigned long resource_id) OVERRIDE;
59
60 protected:
61  virtual ~PluginStreamUrl();
62
63 private:
64  void SetDeferLoading(bool value);
65
66  // In case of a redirect, this can be called to update the url.  But it must
67  // be called before Open().
68  void UpdateUrl(const char* url);
69
70  GURL url_;
71  unsigned long id_;
72  // Ids of additional resources requested via range requests issued on
73  // seekable streams.
74  std::vector<unsigned long> range_requests_;
75
76  // If the plugin participates in HTTP URL redirect handling then this member
77  // holds the url being redirected to while we wait for the plugin to make a
78  // decision on whether to allow or deny the redirect.
79  std::string pending_redirect_url_;
80
81  scoped_ptr<PluginURLFetcher> plugin_url_fetcher_;
82
83  DISALLOW_COPY_AND_ASSIGN(PluginStreamUrl);
84};
85
86}  // namespace content
87
88#endif // CONTENT_CHILD_NPAPI_PLUGIN_STREAM_URL_H_
89