| /* |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #include <wtf/Forward.h> |
| #include <wtf/Noncopyable.h> |
| #include <wtf/ProcessID.h> |
| #include <wtf/RefCounted.h> |
| #include <wtf/RefPtr.h> |
| #include <wtf/Vector.h> |
| #include <wtf/text/WTFString.h> |
| |
| namespace IPC { |
| class Encoder; |
| class Decoder; |
| } |
| |
| namespace WebKit { |
| |
| class SandboxExtensionImpl; |
| |
| class SandboxExtension : public RefCounted<SandboxExtension> { |
| public: |
| enum class Type { |
| ReadOnly, |
| ReadWrite, |
| Mach, |
| Generic, |
| ReadByProcess |
| }; |
| |
| class Handle { |
| WTF_MAKE_NONCOPYABLE(Handle); |
| public: |
| Handle(); |
| #if ENABLE(SANDBOX_EXTENSIONS) |
| Handle(Handle&&); |
| Handle& operator=(Handle&&); |
| #else |
| Handle(Handle&&) = default; |
| Handle& operator=(Handle&&) = default; |
| #endif |
| ~Handle(); |
| |
| void encode(IPC::Encoder&) const; |
| static Optional<Handle> decode(IPC::Decoder&); |
| |
| private: |
| friend class SandboxExtension; |
| #if ENABLE(SANDBOX_EXTENSIONS) |
| mutable std::unique_ptr<SandboxExtensionImpl> m_sandboxExtension; |
| #endif |
| }; |
| |
| class HandleArray { |
| WTF_MAKE_NONCOPYABLE(HandleArray); |
| public: |
| HandleArray(); |
| HandleArray(HandleArray&&) = default; |
| HandleArray& operator=(HandleArray&&) = default; |
| ~HandleArray(); |
| void allocate(size_t); |
| Handle& operator[](size_t i); |
| Handle& at(size_t i) { return operator[](i); } |
| const Handle& operator[](size_t i) const; |
| size_t size() const; |
| void encode(IPC::Encoder&) const; |
| static Optional<HandleArray> decode(IPC::Decoder&); |
| |
| private: |
| #if ENABLE(SANDBOX_EXTENSIONS) |
| Vector<Handle> m_data; |
| #else |
| Handle m_emptyHandle; |
| #endif |
| }; |
| |
| static RefPtr<SandboxExtension> create(Handle&&); |
| static bool createHandle(const String& path, Type, Handle&); |
| static bool createHandleWithoutResolvingPath(const String& path, Type, Handle&); |
| static bool createHandleForReadWriteDirectory(const String& path, Handle&); // Will attempt to create the directory. |
| static String createHandleForTemporaryFile(const String& prefix, Type, Handle&); |
| static bool createHandleForGenericExtension(const String& extensionClass, Handle&); |
| #if HAVE(AUDIT_TOKEN) |
| static bool createHandleForMachLookupByAuditToken(const String& service, audit_token_t, Handle&); |
| static bool createHandleForReadByAuditToken(const String& path, audit_token_t, Handle&); |
| #endif |
| ~SandboxExtension(); |
| |
| bool consume(); |
| bool revoke(); |
| |
| bool consumePermanently(); |
| static bool consumePermanently(const Handle&); |
| |
| private: |
| explicit SandboxExtension(const Handle&); |
| |
| #if ENABLE(SANDBOX_EXTENSIONS) |
| mutable std::unique_ptr<SandboxExtensionImpl> m_sandboxExtension; |
| size_t m_useCount { 0 }; |
| #endif |
| }; |
| |
| #if !ENABLE(SANDBOX_EXTENSIONS) |
| inline SandboxExtension::Handle::Handle() { } |
| inline SandboxExtension::Handle::~Handle() { } |
| inline void SandboxExtension::Handle::encode(IPC::Encoder&) const { } |
| inline Optional<SandboxExtension::Handle> SandboxExtension::Handle::decode(IPC::Decoder&) { return SandboxExtension::Handle { }; } |
| 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::Encoder&) const { } |
| inline auto SandboxExtension::HandleArray::decode(IPC::Decoder&) -> Optional<HandleArray> { return {{ }}; } |
| inline RefPtr<SandboxExtension> SandboxExtension::create(Handle&&) { return nullptr; } |
| inline bool SandboxExtension::createHandle(const String&, Type, Handle&) { return true; } |
| inline bool SandboxExtension::createHandleWithoutResolvingPath(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 bool SandboxExtension::createHandleForGenericExtension(const String& /*extensionClass*/, Handle&) { return true; } |
| 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; } |
| inline String resolvePathForSandboxExtension(const String& path) { return path; } |
| inline String resolveAndCreateReadWriteDirectoryForSandboxExtension(const String& path) { return path; } |
| #else |
| String stringByResolvingSymlinksInPath(const String& path); |
| String resolvePathForSandboxExtension(const String& path); |
| String resolveAndCreateReadWriteDirectoryForSandboxExtension(const String& path); |
| #endif |
| |
| } // namespace WebKit |