1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "webkit/glue/plugins/plugin_stream.h"
#include "base/logging.h"
#include "webkit/glue/plugins/plugin_instance.h"
namespace NPAPI {
PluginStream::PluginStream(
PluginInstance *instance,
const char *url,
bool need_notify,
void *notify_data)
: instance_(instance),
notify_needed_(need_notify),
notify_data_(notify_data),
close_on_write_data_(false),
opened_(false),
requested_plugin_mode_(NP_NORMAL),
temp_file_handle_(INVALID_HANDLE_VALUE),
seekable_stream_(false),
data_offset_(0) {
memset(&stream_, 0, sizeof(stream_));
stream_.url = _strdup(url);
temp_file_name_[0] = '\0';
}
void PluginStream::UpdateUrl(const char* url) {
DCHECK(!opened_);
free(const_cast<char*>(stream_.url));
stream_.url = _strdup(url);
}
void PluginStream::WriteAsFile() {
if (requested_plugin_mode_ == NP_ASFILE ||
requested_plugin_mode_ == NP_ASFILEONLY)
instance_->NPP_StreamAsFile(&stream_, temp_file_name_);
}
size_t PluginStream::WriteBytes(const char *buf, size_t length) {
DWORD bytes;
if (!WriteFile(temp_file_handle_, buf, length, &bytes, 0))
return 0U;
return static_cast<size_t>(bytes);
}
bool PluginStream::OpenTempFile() {
DCHECK(temp_file_handle_ == INVALID_HANDLE_VALUE);
// The reason for using all the Ascii versions of these filesystem
// calls is that the filename which we pass back to the plugin
// via NPAPI is an ascii filename. Otherwise, we'd use wide-chars.
//
// TODO:
// This is a bug in NPAPI itself, and it needs to be fixed.
// The case which will fail is if a user has a multibyte name,
// but has the system locale set to english. GetTempPathA will
// return junk in this case, causing us to be unable to open the
// file.
char temp_directory[MAX_PATH];
if (GetTempPathA(MAX_PATH, temp_directory) == 0)
return false;
if (GetTempFileNameA(temp_directory, "npstream", 0, temp_file_name_) == 0)
return false;
temp_file_handle_ = CreateFileA(temp_file_name_,
FILE_ALL_ACCESS,
FILE_SHARE_READ,
0,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
0);
if (temp_file_handle_ == INVALID_HANDLE_VALUE) {
temp_file_name_[0] = '\0';
return false;
}
return true;
}
void PluginStream::CloseTempFile() {
if (temp_file_handle_ != INVALID_HANDLE_VALUE) {
CloseHandle(temp_file_handle_);
temp_file_handle_ = INVALID_HANDLE_VALUE;
}
}
bool PluginStream::TempFileIsValid() {
return temp_file_handle_ != INVALID_HANDLE_VALUE;
}
} // namespace NPAPI
|
