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
|
/*
* Copyright (C) 2006, 2008 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 "CString.h"
#include "MIMETypeRegistry.h"
#include "PluginDatabase.h"
#include "PluginDebug.h"
#include "Timer.h"
#include "npruntime_impl.h"
#include <string.h>
#include <wtf/OwnArrayPtr.h>
namespace WebCore {
PluginPackage::~PluginPackage()
{
// This destructor gets called during refresh() if PluginDatabase's
// PluginSet hash is already populated, as it removes items from
// the hash table. Calling the destructor on a loaded plug-in of
// course would cause a crash, so we check to call unload before we
// ASSERT.
// FIXME: There is probably a better way to fix this.
if (m_loadCount == 0)
unloadWithoutShutdown();
else
unload();
ASSERT(!m_isLoaded);
}
void PluginPackage::freeLibrarySoon()
{
ASSERT(!m_freeLibraryTimer.isActive());
ASSERT(m_module);
ASSERT(m_loadCount == 0);
#ifdef ANDROID_PLUGINS
// TODO(jripley): Timer<T> is broken. Unload immediately for now.
unloadModule(m_module);
m_module = 0;
#else
m_freeLibraryTimer.startOneShot(0);
#endif
}
void PluginPackage::freeLibraryTimerFired(Timer<PluginPackage>*)
{
ASSERT(m_module);
ASSERT(m_loadCount == 0);
unloadModule(m_module);
m_module = 0;
}
int PluginPackage::compare(const PluginPackage& compareTo) const
{
// Sort plug-ins that allow multiple instances first.
bool AallowsMultipleInstances = !quirks().contains(PluginQuirkDontAllowMultipleInstances);
bool BallowsMultipleInstances = !compareTo.quirks().contains(PluginQuirkDontAllowMultipleInstances);
if (AallowsMultipleInstances != BallowsMultipleInstances)
return AallowsMultipleInstances ? -1 : 1;
// Sort plug-ins in a preferred path first.
bool AisInPreferredDirectory = PluginDatabase::isPreferredPluginDirectory(parentDirectory());
bool BisInPreferredDirectory = PluginDatabase::isPreferredPluginDirectory(compareTo.parentDirectory());
if (AisInPreferredDirectory != BisInPreferredDirectory)
return AisInPreferredDirectory ? -1 : 1;
int diff = strcmp(name().utf8().data(), compareTo.name().utf8().data());
if (diff)
return diff;
if (diff = compareFileVersion(compareTo.version()))
return diff;
return strcmp(parentDirectory().utf8().data(), compareTo.parentDirectory().utf8().data());
}
PluginPackage::PluginPackage(const String& path, const time_t& lastModified)
: m_isLoaded(false)
, m_loadCount(0)
, m_path(path)
, m_moduleVersion(0)
, m_module(0)
, m_lastModified(lastModified)
, m_freeLibraryTimer(this, &PluginPackage::freeLibraryTimerFired)
{
m_fileName = pathGetFileName(m_path);
m_parentDirectory = m_path.left(m_path.length() - m_fileName.length() - 1);
}
void PluginPackage::unload()
{
if (!m_isLoaded)
return;
if (--m_loadCount > 0)
return;
m_NPP_Shutdown();
unloadWithoutShutdown();
}
void PluginPackage::unloadWithoutShutdown()
{
if (!m_isLoaded)
return;
ASSERT(m_loadCount == 0);
ASSERT(m_module);
#if defined(ANDROID_PLUGINS)
// Remove the Java object from PluginList.
unregisterPluginObject();
#endif
// <rdar://5530519>: Crash when closing tab with pdf file (Reader 7 only)
// If the plugin has subclassed its parent window, as with Reader 7, we may have
// gotten here by way of the plugin's internal window proc forwarding a message to our
// original window proc. If we free the plugin library from here, we will jump back
// to code we just freed when we return, so delay calling FreeLibrary at least until
// the next message loop
freeLibrarySoon();
m_isLoaded = false;
}
PassRefPtr<PluginPackage> PluginPackage::createPackage(const String& path, const time_t& lastModified)
{
RefPtr<PluginPackage> package = adoptRef(new PluginPackage(path, lastModified));
if (!package->fetchInfo())
return 0;
return package.release();
}
}
|
