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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
// Copyright (c) 2009 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 "config.h"
#include "webkit/glue/plugins/plugin_lib.h"
#include <dlfcn.h>
#include "base/string_util.h"
#include "base/sys_string_conversions.h"
#include "webkit/glue/plugins/plugin_list.h"
// These headers must be included in this order to make the declaration gods
// happy.
#include "base/third_party/nspr/prcpucfg_linux.h"
#include "third_party/mozilla/include/nsplugindefs.h"
namespace NPAPI {
// static
PluginLib::NativeLibrary PluginLib::LoadNativeLibrary(
const FilePath& library_path) {
void* dl = dlopen(library_path.value().c_str(), RTLD_LAZY);
if (!dl)
NOTREACHED() << "dlopen failed: " << dlerror();
return dl;
}
// static
void PluginLib::UnloadNativeLibrary(NativeLibrary library) {
int ret = dlclose(library);
if (ret < 0)
NOTREACHED() << "dlclose failed: " << dlerror();
}
// static
void* PluginLib::GetFunctionPointerFromNativeLibrary(
NativeLibrary library,
NativeLibraryFunctionNameType name) {
return dlsym(library, name);
}
bool PluginLib::ReadWebPluginInfo(const FilePath& filename,
WebPluginInfo* info) {
// The file to reference is:
// http://mxr.mozilla.org/firefox/source/modules/plugin/base/src/nsPluginsDirUnix.cpp
void* dl = LoadNativeLibrary(filename);
if (!dl)
return false;
info->path = filename;
// See comments in plugin_lib_mac regarding this symbol.
typedef const char* (*NP_GetMimeDescriptionType)();
NP_GetMimeDescriptionType NP_GetMIMEDescription =
reinterpret_cast<NP_GetMimeDescriptionType>(
dlsym(dl, "NP_GetMIMEDescription"));
const char* mime_description = NULL;
if (NP_GetMIMEDescription)
mime_description = NP_GetMIMEDescription();
if (mime_description) {
// We parse the description here into WebPluginMimeType structures.
// Description for Flash 10 looks like (all as one string):
// "application/x-shockwave-flash:swf:Shockwave Flash;"
// "application/futuresplash:spl:FutureSplash Player"
std::vector<std::string> descriptions;
SplitString(mime_description, ';', &descriptions);
for (size_t i = 0; i < descriptions.size(); ++i) {
std::vector<std::string> fields;
SplitString(descriptions[i], ':', &fields);
if (fields.size() != 3) {
LOG(WARNING) << "Couldn't parse plugin info: " << descriptions[i];
continue;
}
WebPluginMimeType mime_type;
mime_type.mime_type = fields[0];
SplitString(fields[1], ',', &mime_type.file_extensions);
mime_type.description = ASCIIToWide(fields[2]);
info->mime_types.push_back(mime_type);
}
}
// The plugin name and description live behind NP_GetValue calls.
typedef NPError (*NP_GetValueType)(void* unused,
nsPluginVariable variable,
void* value_out);
NP_GetValueType NP_GetValue =
reinterpret_cast<NP_GetValueType>(dlsym(dl, "NP_GetValue"));
if (NP_GetValue) {
const char* name = NULL;
NP_GetValue(NULL, nsPluginVariable_NameString, &name);
if (name)
info->name = ASCIIToWide(name);
const char* description = NULL;
NP_GetValue(NULL, nsPluginVariable_DescriptionString, &description);
if (description)
info->desc = ASCIIToWide(description);
}
return true;
}
} // namespace NPAPI
|
