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1 // Copyright (c) 2006-2008 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/glue/plugins/plugin_stream.h" | |
6 | |
7 #include "base/logging.h" | |
8 #include "webkit/glue/plugins/plugin_instance.h" | |
9 | |
10 namespace NPAPI { | |
11 | |
12 PluginStream::PluginStream( | |
13 PluginInstance *instance, | |
14 const char *url, | |
15 bool need_notify, | |
16 void *notify_data) | |
17 : instance_(instance), | |
18 notify_needed_(need_notify), | |
19 notify_data_(notify_data), | |
20 close_on_write_data_(false), | |
21 opened_(false), | |
22 requested_plugin_mode_(NP_NORMAL), | |
23 temp_file_handle_(INVALID_HANDLE_VALUE), | |
24 seekable_stream_(false), | |
25 data_offset_(0) { | |
26 memset(&stream_, 0, sizeof(stream_)); | |
27 stream_.url = _strdup(url); | |
28 temp_file_name_[0] = '\0'; | |
29 } | |
30 | |
31 void PluginStream::UpdateUrl(const char* url) { | |
32 DCHECK(!opened_); | |
33 free(const_cast<char*>(stream_.url)); | |
34 stream_.url = _strdup(url); | |
35 pending_redirect_url_.clear(); | |
36 } | |
37 | |
38 void PluginStream::WriteAsFile() { | |
39 if (requested_plugin_mode_ == NP_ASFILE || | |
40 requested_plugin_mode_ == NP_ASFILEONLY) | |
41 instance_->NPP_StreamAsFile(&stream_, temp_file_name_); | |
42 } | |
43 | |
44 size_t PluginStream::WriteBytes(const char *buf, size_t length) { | |
45 DWORD bytes; | |
46 | |
47 if (!WriteFile(temp_file_handle_, buf, length, &bytes, 0)) | |
48 return 0U; | |
49 | |
50 return static_cast<size_t>(bytes); | |
51 } | |
52 | |
53 bool PluginStream::OpenTempFile() { | |
54 DCHECK(temp_file_handle_ == INVALID_HANDLE_VALUE); | |
55 | |
56 // The reason for using all the Ascii versions of these filesystem | |
57 // calls is that the filename which we pass back to the plugin | |
58 // via NPAPI is an ascii filename. Otherwise, we'd use wide-chars. | |
59 // | |
60 // TODO: | |
61 // This is a bug in NPAPI itself, and it needs to be fixed. | |
62 // The case which will fail is if a user has a multibyte name, | |
63 // but has the system locale set to english. GetTempPathA will | |
64 // return junk in this case, causing us to be unable to open the | |
65 // file. | |
66 | |
67 char temp_directory[MAX_PATH]; | |
68 if (GetTempPathA(MAX_PATH, temp_directory) == 0) | |
69 return false; | |
70 if (GetTempFileNameA(temp_directory, "npstream", 0, temp_file_name_) == 0) | |
71 return false; | |
72 temp_file_handle_ = CreateFileA(temp_file_name_, | |
73 FILE_ALL_ACCESS, | |
74 FILE_SHARE_READ, | |
75 0, | |
76 CREATE_ALWAYS, | |
77 FILE_ATTRIBUTE_NORMAL, | |
78 0); | |
79 if (temp_file_handle_ == INVALID_HANDLE_VALUE) { | |
80 temp_file_name_[0] = '\0'; | |
81 return false; | |
82 } | |
83 return true; | |
84 } | |
85 | |
86 void PluginStream::CloseTempFile() { | |
87 if (temp_file_handle_ != INVALID_HANDLE_VALUE) { | |
88 CloseHandle(temp_file_handle_); | |
89 temp_file_handle_ = INVALID_HANDLE_VALUE; | |
90 } | |
91 } | |
92 | |
93 bool PluginStream::TempFileIsValid() { | |
94 return temp_file_handle_ != INVALID_HANDLE_VALUE; | |
95 } | |
96 | |
97 } // namespace NPAPI | |
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