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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 #include "webkit/plugins/npapi/plugin_stream_url.h" | |
6 | |
7 #include <algorithm> | |
8 | |
9 #include "net/http/http_response_headers.h" | |
10 #include "webkit/plugins/npapi/plugin_host.h" | |
11 #include "webkit/plugins/npapi/plugin_instance.h" | |
12 #include "webkit/plugins/npapi/plugin_lib.h" | |
13 #include "webkit/plugins/npapi/webplugin.h" | |
14 | |
15 namespace webkit { | |
16 namespace npapi { | |
17 | |
18 PluginStreamUrl::PluginStreamUrl( | |
19 unsigned long resource_id, | |
20 const GURL &url, | |
21 PluginInstance *instance, | |
22 bool notify_needed, | |
23 void *notify_data) | |
24 : PluginStream(instance, url.spec().c_str(), notify_needed, notify_data), | |
25 url_(url), | |
26 id_(resource_id) { | |
27 } | |
28 | |
29 bool PluginStreamUrl::Close(NPReason reason) { | |
30 // Protect the stream against it being destroyed or the whole plugin instance | |
31 // being destroyed within the destroy stream handler. | |
32 scoped_refptr<PluginStream> protect(this); | |
33 CancelRequest(); | |
34 bool result = PluginStream::Close(reason); | |
35 instance()->RemoveStream(this); | |
36 return result; | |
37 } | |
38 | |
39 WebPluginResourceClient* PluginStreamUrl::AsResourceClient() { | |
40 return static_cast<WebPluginResourceClient*>(this); | |
41 } | |
42 | |
43 void PluginStreamUrl::CancelRequest() { | |
44 if (id_ > 0) { | |
45 if (instance()->webplugin()) { | |
46 instance()->webplugin()->CancelResource(id_); | |
47 } | |
48 id_ = 0; | |
49 } | |
50 if (instance()->webplugin()) { | |
51 for (size_t i = 0; i < range_requests_.size(); ++i) | |
52 instance()->webplugin()->CancelResource(range_requests_[i]); | |
53 } | |
54 range_requests_.clear(); | |
55 } | |
56 | |
57 void PluginStreamUrl::WillSendRequest(const GURL& url, int http_status_code) { | |
58 if (notify_needed()) { | |
59 // If the plugin participates in HTTP url redirect handling then notify it. | |
60 if (net::HttpResponseHeaders::IsRedirectResponseCode(http_status_code) && | |
61 instance()->handles_url_redirects()) { | |
62 pending_redirect_url_ = url.spec(); | |
63 instance()->NPP_URLRedirectNotify(url.spec().c_str(), http_status_code, | |
64 notify_data()); | |
65 return; | |
66 } | |
67 } | |
68 url_ = url; | |
69 UpdateUrl(url.spec().c_str()); | |
70 } | |
71 | |
72 void PluginStreamUrl::DidReceiveResponse(const std::string& mime_type, | |
73 const std::string& headers, | |
74 uint32 expected_length, | |
75 uint32 last_modified, | |
76 bool request_is_seekable) { | |
77 // Protect the stream against it being destroyed or the whole plugin instance | |
78 // being destroyed within the new stream handler. | |
79 scoped_refptr<PluginStream> protect(this); | |
80 | |
81 bool opened = Open(mime_type, | |
82 headers, | |
83 expected_length, | |
84 last_modified, | |
85 request_is_seekable); | |
86 if (!opened) { | |
87 CancelRequest(); | |
88 instance()->RemoveStream(this); | |
89 } else { | |
90 SetDeferLoading(false); | |
91 } | |
92 } | |
93 | |
94 void PluginStreamUrl::DidReceiveData(const char* buffer, int length, | |
95 int data_offset) { | |
96 if (!open()) | |
97 return; | |
98 | |
99 // Protect the stream against it being destroyed or the whole plugin instance | |
100 // being destroyed within the write handlers | |
101 scoped_refptr<PluginStream> protect(this); | |
102 | |
103 if (length > 0) { | |
104 // The PluginStreamUrl instance could get deleted if the plugin fails to | |
105 // accept data in NPP_Write. | |
106 if (Write(const_cast<char*>(buffer), length, data_offset) > 0) { | |
107 SetDeferLoading(false); | |
108 } | |
109 } | |
110 } | |
111 | |
112 void PluginStreamUrl::DidFinishLoading(unsigned long resource_id) { | |
113 if (!seekable()) { | |
114 Close(NPRES_DONE); | |
115 } else { | |
116 std::vector<unsigned long>::iterator it_resource = std::find( | |
117 range_requests_.begin(), | |
118 range_requests_.end(), | |
119 resource_id); | |
120 // Resource id must be known to us - either main resource id, or one | |
121 // of the resources, created for range requests. | |
122 DCHECK(resource_id == id_ || it_resource != range_requests_.end()); | |
123 // We should notify the plugin about failed/finished requests to ensure | |
124 // that the number of active resource clients does not continue to grow. | |
125 if (instance()->webplugin()) | |
126 instance()->webplugin()->CancelResource(resource_id); | |
127 if (it_resource != range_requests_.end()) | |
128 range_requests_.erase(it_resource); | |
129 } | |
130 } | |
131 | |
132 void PluginStreamUrl::DidFail(unsigned long resource_id) { | |
133 Close(NPRES_NETWORK_ERR); | |
134 } | |
135 | |
136 bool PluginStreamUrl::IsMultiByteResponseExpected() { | |
137 return seekable(); | |
138 } | |
139 | |
140 int PluginStreamUrl::ResourceId() { | |
141 return id_; | |
142 } | |
143 | |
144 PluginStreamUrl::~PluginStreamUrl() { | |
145 if (instance() && instance()->webplugin()) { | |
146 instance()->webplugin()->ResourceClientDeleted(AsResourceClient()); | |
147 } | |
148 } | |
149 | |
150 void PluginStreamUrl::AddRangeRequestResourceId(unsigned long resource_id) { | |
151 DCHECK_NE(resource_id, 0u); | |
152 range_requests_.push_back(resource_id); | |
153 } | |
154 | |
155 void PluginStreamUrl::SetDeferLoading(bool value) { | |
156 if (id_ > 0) | |
157 instance()->webplugin()->SetDeferResourceLoading(id_, value); | |
158 for (size_t i = 0; i < range_requests_.size(); ++i) | |
159 instance()->webplugin()->SetDeferResourceLoading(range_requests_[i], | |
160 value); | |
161 } | |
162 | |
163 } // namespace npapi | |
164 } // namespace webkit | |
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