mirror of
https://github.com/VCMP-SqMod/SqMod.git
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4a6bfc086c
Switched to POCO library for unified platform/library interface. Deprecated the external module API. It was creating more problems than solving. Removed most built-in libraries in favor of system libraries for easier maintenance. Cleaned and secured code with help from static analyzers.
300 lines
8.0 KiB
C++
300 lines
8.0 KiB
C++
//
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// SecureStreamSocketImpl.h
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//
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// Library: NetSSL_OpenSSL
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// Package: SSLSockets
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// Module: SecureStreamSocketImpl
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//
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// Definition of the SecureStreamSocketImpl class.
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//
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// Copyright (c) 2006-2010, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef NetSSL_SecureStreamSocketImpl_INCLUDED
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#define NetSSL_SecureStreamSocketImpl_INCLUDED
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#include "Poco/Net/NetSSL.h"
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#include "Poco/Net/SecureSocketImpl.h"
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#include "Poco/Net/StreamSocketImpl.h"
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#include "Poco/Net/Context.h"
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#include "Poco/Net/X509Certificate.h"
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namespace Poco {
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namespace Net {
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class NetSSL_API SecureStreamSocketImpl: public StreamSocketImpl
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/// This class implements a SSL stream socket.
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{
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public:
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SecureStreamSocketImpl(Context::Ptr pContext);
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/// Creates the SecureStreamSocketImpl.
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SecureStreamSocketImpl(StreamSocketImpl* pStreamSocket, Context::Ptr pContext);
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/// Creates the SecureStreamSocketImpl.
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SocketImpl* acceptConnection(SocketAddress& clientAddr);
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/// Not supported by a SecureStreamSocket.
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///
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/// Throws a Poco::InvalidAccessException.
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void connect(const SocketAddress& address);
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/// Initializes the socket and establishes a connection to
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/// the TCP server at the given address.
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///
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/// Can also be used for UDP sockets. In this case, no
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/// connection is established. Instead, incoming and outgoing
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/// packets are restricted to the specified address.
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void connect(const SocketAddress& address, const Poco::Timespan& timeout);
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/// Initializes the socket, sets the socket timeout and
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/// establishes a connection to the TCP server at the given address.
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void connectNB(const SocketAddress& address);
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/// Initializes the socket and establishes a connection to
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/// the TCP server at the given address. Prior to opening the
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/// connection the socket is set to nonblocking mode.
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void bind(const SocketAddress& address, bool reuseAddress = false);
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/// Not supported by a SecureStreamSocket.
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///
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/// Throws a Poco::InvalidAccessException.
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void listen(int backlog = 64);
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/// Not supported by a SecureStreamSocket.
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///
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/// Throws a Poco::InvalidAccessException.
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void close();
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/// Close the socket.
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int sendBytes(const void* buffer, int length, int flags = 0);
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/// Sends the contents of the given buffer through
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/// the socket. Any specified flags are ignored.
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///
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/// Returns the number of bytes sent, which may be
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/// less than the number of bytes specified.
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int receiveBytes(void* buffer, int length, int flags = 0);
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/// Receives data from the socket and stores it
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/// in buffer. Up to length bytes are received.
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///
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/// Returns the number of bytes received.
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int sendTo(const void* buffer, int length, const SocketAddress& address, int flags = 0);
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/// Not supported by a SecureStreamSocket.
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///
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/// Throws a Poco::InvalidAccessException.
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int receiveFrom(void* buffer, int length, SocketAddress& address, int flags = 0);
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/// Not supported by a SecureStreamSocket.
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///
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/// Throws a Poco::InvalidAccessException.
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void sendUrgent(unsigned char data);
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/// Not supported by a SecureStreamSocket.
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///
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/// Throws a Poco::InvalidAccessException.
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int available();
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/// Returns the number of bytes available that can be read
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/// without causing the socket to block.
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///
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/// For an SSL connection, returns the number of bytes that
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/// can be read from the currently buffered SSL record,
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/// before a new record is read from the underlying socket.
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void shutdownReceive();
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/// Shuts down the receiving part of the socket connection.
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///
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/// Since SSL does not support a half shutdown, this does
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/// nothing.
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void shutdownSend();
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/// Shuts down the receiving part of the socket connection.
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///
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/// Since SSL does not support a half shutdown, this does
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/// nothing.
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void shutdown();
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/// Shuts down the SSL connection.
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void abort();
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/// Aborts the connection by closing the underlying
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/// TCP connection. No orderly SSL shutdown is performed.
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bool secure() const;
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/// Returns true iff the socket's connection is secure
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/// (using SSL or TLS).
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void setPeerHostName(const std::string& hostName);
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/// Sets the peer host name for certificate validation purposes.
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const std::string& getPeerHostName() const;
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/// Returns the peer host name.
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bool havePeerCertificate() const;
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/// Returns true iff the peer has presented a
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/// certificate.
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X509Certificate peerCertificate() const;
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/// Returns the peer's X509 certificate.
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///
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/// Throws a SSLException if the peer did not
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/// present a certificate.
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Context::Ptr context() const;
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/// Returns the SSL context used by this socket.
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void setLazyHandshake(bool flag = true);
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/// Enable lazy SSL handshake. If enabled, the SSL handshake
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/// will be performed the first time date is sent or
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/// received over the connection.
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bool getLazyHandshake() const;
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/// Returns true if setLazyHandshake(true) has been called.
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void verifyPeerCertificate();
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/// Performs post-connect (or post-accept) peer certificate validation,
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/// using the peer's IP address as host name.
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void verifyPeerCertificate(const std::string& hostName);
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/// Performs post-connect (or post-accept) peer certificate validation
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/// using the given host name.
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int completeHandshake();
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/// Completes the SSL handshake.
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///
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/// If the SSL connection was the result of an accept(),
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/// the server-side handshake is completed, otherwise
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/// a client-side handshake is performed.
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Session::Ptr currentSession();
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/// Returns the SSL session of the current connection,
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/// for reuse in a future connection (if session caching
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/// is enabled).
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///
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/// If no connection is established, returns null.
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void useSession(Session::Ptr pSession);
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/// Sets the SSL session to use for the next
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/// connection. Setting a previously saved Session
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/// object is necessary to enable session caching.
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///
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/// To remove the currently set session, a null pointer
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/// can be given.
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///
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/// Must be called before connect() to be effective.
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bool sessionWasReused();
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/// Returns true iff a reused session was negotiated during
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/// the handshake.
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protected:
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void acceptSSL();
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/// Performs a SSL server-side handshake.
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void connectSSL();
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/// Performs a SSL client-side handshake on an already connected TCP socket.
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~SecureStreamSocketImpl();
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/// Destroys the SecureStreamSocketImpl.
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static int lastError();
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static void error();
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static void error(const std::string& arg);
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static void error(int code);
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static void error(int code, const std::string& arg);
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private:
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SecureStreamSocketImpl(const SecureStreamSocketImpl&);
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SecureStreamSocketImpl& operator = (const SecureStreamSocketImpl&);
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SecureSocketImpl _impl;
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bool _lazyHandshake;
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friend class SecureSocketImpl;
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friend class SecureStreamSocket;
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};
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//
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// inlines
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//
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inline const std::string& SecureStreamSocketImpl::getPeerHostName() const
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{
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return _impl.getPeerHostName();
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}
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inline void SecureStreamSocketImpl::setPeerHostName(const std::string& peerHostName)
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{
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_impl.setPeerHostName(peerHostName);
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}
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inline Context::Ptr SecureStreamSocketImpl::context() const
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{
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return _impl.context();
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}
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inline Session::Ptr SecureStreamSocketImpl::currentSession()
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{
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return _impl.currentSession();
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}
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inline void SecureStreamSocketImpl::useSession(Session::Ptr pSession)
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{
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_impl.useSession(pSession);
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}
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inline bool SecureStreamSocketImpl::sessionWasReused()
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{
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return _impl.sessionWasReused();
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}
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inline int SecureStreamSocketImpl::lastError()
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{
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return SocketImpl::lastError();
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}
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inline void SecureStreamSocketImpl::error()
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{
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return SocketImpl::error();
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}
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inline void SecureStreamSocketImpl::error(const std::string& arg)
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{
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return SocketImpl::error(arg);
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}
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inline void SecureStreamSocketImpl::error(int code)
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{
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return SocketImpl::error(code);
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}
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inline void SecureStreamSocketImpl::error(int code, const std::string& arg)
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{
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return SocketImpl::error(code, arg);
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}
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} } // namespace Poco::Net
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#endif // NetSSL_SecureStreamSocketImpl_INCLUDED
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