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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/*
* Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
* Copyright (C) 2008 Collabora Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "PluginPackage.h"
#include "MIMETypeRegistry.h"
#include "npruntime_impl.h"
#include "PluginDatabase.h"
#include "PluginDebug.h"
#include <wtf/text/CString.h>
namespace WebCore {
typedef void gtkInitFunc(int *argc, char ***argv);
bool PluginPackage::fetchInfo()
{
if (!load())
return false;
NPP_GetValueProcPtr gv = (NPP_GetValueProcPtr)m_module->resolve("NP_GetValue");
typedef char *(*NPP_GetMIMEDescriptionProcPtr)();
NPP_GetMIMEDescriptionProcPtr gm =
(NPP_GetMIMEDescriptionProcPtr)m_module->resolve("NP_GetMIMEDescription");
if (!gm || !gv)
return false;
char *buf = 0;
NPError err = gv(0, NPPVpluginNameString, (void*) &buf);
if (err != NPERR_NO_ERROR)
return false;
m_name = buf;
err = gv(0, NPPVpluginDescriptionString, (void*) &buf);
if (err != NPERR_NO_ERROR)
return false;
m_description = buf;
determineModuleVersionFromDescription();
String s = gm();
Vector<String> types;
s.split(UChar(';'), false, types);
for (unsigned i = 0; i < types.size(); ++i) {
Vector<String> mime;
types[i].split(UChar(':'), true, mime);
if (mime.size() > 0) {
Vector<String> exts;
if (mime.size() > 1)
mime[1].split(UChar(','), false, exts);
determineQuirks(mime[0]);
m_mimeToExtensions.add(mime[0], exts);
if (mime.size() > 2)
m_mimeToDescriptions.add(mime[0], mime[2]);
}
}
return true;
}
static NPError staticPluginQuirkRequiresGtkToolKit_NPN_GetValue(NPP instance, NPNVariable variable, void* value)
{
if (variable == NPNVToolkit) {
*static_cast<uint32_t*>(value) = 2;
return NPERR_NO_ERROR;
}
return NPN_GetValue(instance, variable, value);
}
bool PluginPackage::load()
{
if (m_isLoaded) {
m_loadCount++;
return true;
}
m_module = new QLibrary((QString)m_path);
m_module->setLoadHints(QLibrary::ResolveAllSymbolsHint);
if (!m_module->load()) {
LOG(Plugins, "%s not loaded (%s)", m_path.utf8().data(),
m_module->errorString().toLatin1().constData());
return false;
}
m_isLoaded = true;
NP_InitializeFuncPtr NP_Initialize;
NPError npErr;
gtkInitFunc* gtkInit;
NP_Initialize = (NP_InitializeFuncPtr)m_module->resolve("NP_Initialize");
m_NPP_Shutdown = (NPP_ShutdownProcPtr)m_module->resolve("NP_Shutdown");
if (!NP_Initialize || !m_NPP_Shutdown)
goto abort;
memset(&m_pluginFuncs, 0, sizeof(m_pluginFuncs));
m_pluginFuncs.size = sizeof(m_pluginFuncs);
initializeBrowserFuncs();
if (m_path.contains("npwrapper.")) {
// nspluginwrapper relies on the toolkit value to know if glib is available
// It does so in NP_Initialize with a null instance, therefore it is done this way:
m_browserFuncs.getvalue = staticPluginQuirkRequiresGtkToolKit_NPN_GetValue;
}
// WORKAROUND: Prevent gtk based plugin crashes such as BR# 40567 by
// explicitly forcing the initializing of Gtk, i.e. calling gtk_init,
// whenver the symbol is present in the plugin library loaded above.
// Note that this workaround is based on code from the NSPluginClass ctor
// in KDE's kdebase/apps/nsplugins/viewer/nsplugin.cpp file.
gtkInit = (gtkInitFunc*)m_module->resolve("gtk_init");
if (gtkInit) {
// Prevent gtk_init() from replacing the X error handlers, since the Gtk
// handlers abort when they receive an X error, thus killing the viewer.
#ifdef Q_WS_X11
int (*old_error_handler)(Display*, XErrorEvent*) = XSetErrorHandler(0);
int (*old_io_error_handler)(Display*) = XSetIOErrorHandler(0);
#endif
gtkInit(0, 0);
#ifdef Q_WS_X11
XSetErrorHandler(old_error_handler);
XSetIOErrorHandler(old_io_error_handler);
#endif
}
#if defined(XP_UNIX)
npErr = NP_Initialize(&m_browserFuncs, &m_pluginFuncs);
#else
npErr = NP_Initialize(&m_browserFuncs);
#endif
if (npErr != NPERR_NO_ERROR)
goto abort;
m_loadCount++;
return true;
abort:
unloadWithoutShutdown();
return false;
}
uint16_t PluginPackage::NPVersion() const
{
return NP_VERSION_MINOR;
}
}
|
