1 /*
2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #ifndef SandboxExtension_h
27 #define SandboxExtension_h
28
29 #include <wtf/Forward.h>
30 #include <wtf/Noncopyable.h>
31 #include <wtf/PassRefPtr.h>
32 #include <wtf/RefCounted.h>
33 #include <wtf/text/WTFString.h>
34
35 #if ENABLE(WEB_PROCESS_SANDBOX)
36 typedef struct __WKSandboxExtension* WKSandboxExtensionRef;
37 #endif
38
39 namespace CoreIPC {
40 class ArgumentEncoder;
41 class ArgumentDecoder;
42 }
43
44 namespace WebKit {
45
46 class SandboxExtension : public RefCounted<SandboxExtension> {
47 public:
48 enum Type {
49 ReadOnly,
50 WriteOnly,
51 ReadWrite,
52 };
53
54 class Handle {
55 WTF_MAKE_NONCOPYABLE(Handle);
56
57 public:
58 Handle();
59 ~Handle();
60
61 void encode(CoreIPC::ArgumentEncoder*) const;
62 static bool decode(CoreIPC::ArgumentDecoder*, Handle&);
63
64 private:
65 friend class SandboxExtension;
66 #if ENABLE(WEB_PROCESS_SANDBOX)
67 mutable WKSandboxExtensionRef m_sandboxExtension;
68 #endif
69 };
70
71 static PassRefPtr<SandboxExtension> create(const Handle&);
72 static void createHandle(const String& path, Type type, Handle&);
73 static String createHandleForTemporaryFile(const String& prefix, Type type, Handle&);
74 ~SandboxExtension();
75
76 bool invalidate();
77 bool consume();
78 bool consumePermanently();
79
80 private:
81 explicit SandboxExtension(const Handle&);
82
83 #if ENABLE(WEB_PROCESS_SANDBOX)
84 mutable WKSandboxExtensionRef m_sandboxExtension;
85 #endif
86 };
87
88 #if !ENABLE(WEB_PROCESS_SANDBOX)
Handle()89 inline SandboxExtension::Handle::Handle() { }
~Handle()90 inline SandboxExtension::Handle::~Handle() { }
encode(CoreIPC::ArgumentEncoder *)91 inline void SandboxExtension::Handle::encode(CoreIPC::ArgumentEncoder*) const { }
decode(CoreIPC::ArgumentDecoder *,Handle &)92 inline bool SandboxExtension::Handle::decode(CoreIPC::ArgumentDecoder*, Handle&) { return true; }
create(const Handle &)93 inline PassRefPtr<SandboxExtension> SandboxExtension::create(const Handle&) { return 0; }
createHandle(const String & path,Type type,Handle &)94 inline void SandboxExtension::createHandle(const String& path, Type type, Handle&) { }
createHandleForTemporaryFile(const String & prefix,Type type,Handle &)95 inline String SandboxExtension::createHandleForTemporaryFile(const String& prefix, Type type, Handle&) {return String();}
~SandboxExtension()96 inline SandboxExtension::~SandboxExtension() { }
invalidate()97 inline bool SandboxExtension::invalidate() { return true; }
consume()98 inline bool SandboxExtension::consume() { return true; }
consumePermanently()99 inline bool SandboxExtension::consumePermanently() { return true; }
100 #endif
101
102 } // namespace WebKit
103
104
105 #endif // SandboxExtension_h
106