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/*
* Copyright (C) 2010 Apple Inc. 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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.
*/
#ifndef SandboxExtension_h
#define SandboxExtension_h
#include <wtf/Forward.h>
#include <wtf/Noncopyable.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/text/WTFString.h>
#if ENABLE(SANDBOX_EXTENSIONS)
typedef struct __WKSandboxExtension* WKSandboxExtensionRef;
#endif
namespace IPC {
class ArgumentEncoder;
class ArgumentDecoder;
}
namespace WebKit {
class SandboxExtension : public RefCounted<SandboxExtension> {
public:
enum Type {
ReadOnly,
ReadWrite
};
class Handle {
WTF_MAKE_NONCOPYABLE(Handle);
public:
Handle();
~Handle();
void encode(IPC::ArgumentEncoder&) const;
static bool decode(IPC::ArgumentDecoder&, Handle&);
private:
friend class SandboxExtension;
#if ENABLE(SANDBOX_EXTENSIONS)
mutable WKSandboxExtensionRef m_sandboxExtension;
#endif
};
class HandleArray {
WTF_MAKE_NONCOPYABLE(HandleArray);
public:
HandleArray();
~HandleArray();
void allocate(size_t);
Handle& operator[](size_t i);
const Handle& operator[](size_t i) const;
size_t size() const;
void encode(IPC::ArgumentEncoder&) const;
static bool decode(IPC::ArgumentDecoder&, HandleArray&);
private:
#if ENABLE(SANDBOX_EXTENSIONS)
std::unique_ptr<Handle[]> m_data;
size_t m_size;
#else
Handle m_emptyHandle;
#endif
};
static RefPtr<SandboxExtension> create(const Handle&);
static bool createHandle(const String& path, Type type, Handle&);
static bool createHandleForReadWriteDirectory(const String& path, Handle&); // Will attempt to create the directory.
static String createHandleForTemporaryFile(const String& prefix, Type type, Handle&);
~SandboxExtension();
bool consume();
bool revoke();
bool consumePermanently();
static bool consumePermanently(const Handle&);
private:
explicit SandboxExtension(const Handle&);
#if ENABLE(SANDBOX_EXTENSIONS)
mutable WKSandboxExtensionRef m_sandboxExtension;
size_t m_useCount;
#endif
};
#if !ENABLE(SANDBOX_EXTENSIONS)
inline SandboxExtension::Handle::Handle() { }
inline SandboxExtension::Handle::~Handle() { }
inline void SandboxExtension::Handle::encode(IPC::ArgumentEncoder&) const { }
inline bool SandboxExtension::Handle::decode(IPC::ArgumentDecoder&, Handle&) { return true; }
inline SandboxExtension::HandleArray::HandleArray() { }
inline SandboxExtension::HandleArray::~HandleArray() { }
inline void SandboxExtension::HandleArray::allocate(size_t) { }
inline size_t SandboxExtension::HandleArray::size() const { return 0; }
inline const SandboxExtension::Handle& SandboxExtension::HandleArray::operator[](size_t) const { return m_emptyHandle; }
inline SandboxExtension::Handle& SandboxExtension::HandleArray::operator[](size_t) { return m_emptyHandle; }
inline void SandboxExtension::HandleArray::encode(IPC::ArgumentEncoder&) const { }
inline bool SandboxExtension::HandleArray::decode(IPC::ArgumentDecoder&, HandleArray&) { return true; }
inline RefPtr<SandboxExtension> SandboxExtension::create(const Handle&) { return nullptr; }
inline bool SandboxExtension::createHandle(const String&, Type, Handle&) { return true; }
inline bool SandboxExtension::createHandleForReadWriteDirectory(const String&, Handle&) { return true; }
inline String SandboxExtension::createHandleForTemporaryFile(const String& /*prefix*/, Type, Handle&) {return String();}
inline SandboxExtension::~SandboxExtension() { }
inline bool SandboxExtension::revoke() { return true; }
inline bool SandboxExtension::consume() { return true; }
inline bool SandboxExtension::consumePermanently() { return true; }
inline bool SandboxExtension::consumePermanently(const Handle&) { return true; }
inline String stringByResolvingSymlinksInPath(const String& path) { return path; }
#else
String stringByResolvingSymlinksInPath(const String& path);
#endif
} // namespace WebKit
#endif // SandboxExtension_h
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