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Diffstat (limited to 'Sockets/TcpSocket.h')
| -rw-r--r-- | Sockets/TcpSocket.h | 355 |
1 files changed, 0 insertions, 355 deletions
diff --git a/Sockets/TcpSocket.h b/Sockets/TcpSocket.h deleted file mode 100644 index 47f7d15..0000000 --- a/Sockets/TcpSocket.h +++ /dev/null @@ -1,355 +0,0 @@ -/** \file TcpSocket.h - ** \date 2004-02-13 - ** \author grymse@alhem.net -**/ -/* -Copyright (C) 2004-2007 Anders Hedstrom - -This library is made available under the terms of the GNU GPL. - -If you would like to use this library in a closed-source application, -a separate license agreement is available. For information about -the closed-source license agreement for the C++ sockets library, -please visit http://www.alhem.net/Sockets/license.html and/or -email license@alhem.net. - -This program is free software; you can redistribute it and/or -modify it under the terms of the GNU General Public License -as published by the Free Software Foundation; either version 2 -of the License, or (at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -*/ -#ifndef _SOCKETS_TcpSocket_H -#define _SOCKETS_TcpSocket_H -#include "sockets-config.h" -#include "StreamSocket.h" -#ifdef HAVE_OPENSSL -#include <openssl/ssl.h> -#include "SSLInitializer.h" -#endif - - -#define TCP_BUFSIZE_READ 16400 -#define TCP_OUTPUT_CAPACITY 1024000 - - -#ifdef SOCKETS_NAMESPACE -namespace SOCKETS_NAMESPACE { -#endif - -class SocketAddress; - - -/** Socket implementation for TCP. - \ingroup basic */ -class TcpSocket : public StreamSocket -{ - /** \defgroup internal Internal utility */ -protected: - /** Buffer class containing one read/write circular buffer. - \ingroup internal */ - class CircularBuffer - { - public: - CircularBuffer(size_t size); - ~CircularBuffer(); - - /** append l bytes from p to buffer */ - bool Write(const char *p,size_t l); - /** copy l bytes from buffer to dest */ - bool Read(char *dest,size_t l); - /** skip l bytes from buffer */ - bool Remove(size_t l); - /** read l bytes from buffer, returns as string. */ - std::string ReadString(size_t l); - - /** total buffer length */ - size_t GetLength(); - /** pointer to circular buffer beginning */ - const char *GetStart(); - /** return number of bytes from circular buffer beginning to buffer physical end */ - size_t GetL(); - /** return free space in buffer, number of bytes until buffer overrun */ - size_t Space(); - - /** return total number of bytes written to this buffer, ever */ - unsigned long ByteCounter(bool clear = false); - - private: - CircularBuffer(const CircularBuffer& s) {} - CircularBuffer& operator=(const CircularBuffer& ) { return *this; } - char *buf; - size_t m_max; - size_t m_q; - size_t m_b; - size_t m_t; - unsigned long m_count; - }; - /** Output buffer struct. - \ingroup internal */ - struct OUTPUT { - OUTPUT() : _b(0), _t(0), _q(0) {} - OUTPUT(const char *buf, size_t len) : _b(0), _t(len), _q(len) { - memcpy(_buf, buf, len); - } - size_t Space() { - return TCP_OUTPUT_CAPACITY - _t; - } - void Add(const char *buf, size_t len) { - memcpy(_buf + _t, buf, len); - _t += len; - _q += len; - } - size_t Remove(size_t len) { - _b += len; - _q -= len; - return _q; - } - const char *Buf() { - return _buf + _b; - } - size_t Len() { - return _q; - } - size_t _b; - size_t _t; - size_t _q; - char _buf[TCP_OUTPUT_CAPACITY]; - }; - typedef std::list<OUTPUT *> output_l; - -public: - /** Constructor with standard values on input/output buffers. */ - TcpSocket(ISocketHandler& ); - /** Constructor with custom values for i/o buffer. - \param h ISocketHandler reference - \param isize Input buffer size - \param osize Output buffer size */ - TcpSocket(ISocketHandler& h,size_t isize,size_t osize); - ~TcpSocket(); - - /** Open a connection to a remote server. - If you want your socket to connect to a server, - always call Open before Add'ing a socket to the sockethandler. - If not, the connection attempt will not be monitored by the - socket handler... - \param ip IP address - \param port Port number - \param skip_socks Do not use socks4 even if configured */ - bool Open(ipaddr_t ip,port_t port,bool skip_socks = false); -#ifdef ENABLE_IPV6 -#ifdef IPPROTO_IPV6 - /** Open connection. - \param ip Ipv6 address - \param port Port number - \param skip_socks Do not use socks4 even if configured */ - bool Open(in6_addr ip,port_t port,bool skip_socks = false); -#endif -#endif - bool Open(SocketAddress&,bool skip_socks = false); - bool Open(SocketAddress&,SocketAddress& bind_address,bool skip_socks = false); - /** Open connection. - \param host Hostname - \param port Port number */ - bool Open(const std::string &host,port_t port); - - /** Connect timeout callback. */ - void OnConnectTimeout(); -#ifdef _WIN32 - /** Connection failed reported as exception on win32 */ - void OnException(); -#endif - - /** Close file descriptor - internal use only. - \sa SetCloseAndDelete */ - int Close(); - - /** Send a string. - \param s String to send - \param f Dummy flags -- not used */ - void Send(const std::string &s,int f = 0); - /** Send string using printf formatting. */ - void Sendf(const char *format, ...); - /** Send buffer of bytes. - \param buf Buffer pointer - \param len Length of data - \param f Dummy flags -- not used */ - void SendBuf(const char *buf,size_t len,int f = 0); - /** This callback is executed after a successful read from the socket. - \param buf Pointer to the data - \param len Length of the data */ - virtual void OnRawData(const char *buf,size_t len); - - /** Called when output buffer has been sent. - Note: Will only be called IF the output buffer has been used. - Send's that was successful without needing the output buffer - will not generate a call to this method. */ - virtual void OnWriteComplete(); - /** Number of bytes in input buffer. */ - size_t GetInputLength(); - /** Number of bytes in output buffer. */ - size_t GetOutputLength(); - - /** Callback fires when a socket in line protocol has read one full line. - \param line Line read */ - void OnLine(const std::string& line); - /** Get counter of number of bytes received. */ - uint64_t GetBytesReceived(bool clear = false); - /** Get counter of number of bytes sent. */ - uint64_t GetBytesSent(bool clear = false); - - /** Socks4 specific callback. */ - void OnSocks4Connect(); - /** Socks4 specific callback. */ - void OnSocks4ConnectFailed(); - /** Socks4 specific callback. - \return 'need_more' */ - bool OnSocks4Read(); - -#ifdef ENABLE_RESOLVER - /** Callback executed when resolver thread has finished a resolve request. */ - void OnResolved(int id,ipaddr_t a,port_t port); -#ifdef ENABLE_IPV6 - void OnResolved(int id,in6_addr& a,port_t port); -#endif -#endif -#ifdef HAVE_OPENSSL - /** Callback for 'New' ssl support - replaces SSLSocket. Internal use. */ - void OnSSLConnect(); - /** Callback for 'New' ssl support - replaces SSLSocket. Internal use. */ - void OnSSLAccept(); - /** This method must be implemented to initialize - the ssl context for an outgoing connection. */ - virtual void InitSSLClient(); - /** This method must be implemented to initialize - the ssl context for an incoming connection. */ - virtual void InitSSLServer(); -#endif - -#ifdef ENABLE_RECONNECT - /** Flag that says a broken connection will try to reconnect. */ - void SetReconnect(bool = true); - /** Check reconnect on lost connection flag status. */ - bool Reconnect(); - /** Flag to determine if a reconnect is in progress. */ - void SetIsReconnect(bool x = true); - /** Socket is reconnecting. */ - bool IsReconnect(); -#endif - - void DisableInputBuffer(bool = true); - - void OnOptions(int,int,int,SOCKET); - - void SetLineProtocol(bool = true); - - // TCP options - bool SetTcpNodelay(bool = true); - - virtual int Protocol(); - - /** Trigger limit for callback OnTransferLimit. */ - void SetTransferLimit(size_t sz); - /** This callback fires when the output buffer drops below the value - set by SetTransferLimit. Default: 0 (disabled). */ - virtual void OnTransferLimit(); - -protected: - TcpSocket(const TcpSocket& ); - void OnRead(); - void OnRead( char *buf, size_t n ); - void OnWrite(); -#ifdef HAVE_OPENSSL - /** SSL; Initialize ssl context for a client socket. - \param meth_in SSL method */ - void InitializeContext(const std::string& context, SSL_METHOD *meth_in = NULL); - /** SSL; Initialize ssl context for a server socket. - \param keyfile Combined private key/certificate file - \param password Password for private key - \param meth_in SSL method */ - void InitializeContext(const std::string& context, const std::string& keyfile, const std::string& password, SSL_METHOD *meth_in = NULL); - /** SSL; Initialize ssl context for a server socket. - \param certfile Separate certificate file - \param keyfile Combined private key/certificate file - \param password Password for private key - \param meth_in SSL method */ - void InitializeContext(const std::string& context, const std::string& certfile, const std::string& keyfile, const std::string& password, SSL_METHOD *meth_in = NULL); - /** SSL; Password callback method. */ -static int SSL_password_cb(char *buf,int num,int rwflag,void *userdata); - /** SSL; Get pointer to ssl context structure. */ - virtual SSL_CTX *GetSslContext(); - /** SSL; Get pointer to ssl structure. */ - virtual SSL *GetSsl(); - /** ssl; still negotiating connection. */ - bool SSLNegotiate(); - /** SSL; Get ssl password. */ - const std::string& GetPassword(); -#endif - - CircularBuffer ibuf; ///< Circular input buffer - -private: - TcpSocket& operator=(const TcpSocket& ) { return *this; } - - /** the actual send() */ - int TryWrite(const char *buf, size_t len); - /** add data to output buffer top */ - void Buffer(const char *buf, size_t len); - - // - bool m_b_input_buffer_disabled; - uint64_t m_bytes_sent; - uint64_t m_bytes_received; - bool m_skip_c; ///< Skip second char of CRLF or LFCR sequence in OnRead - char m_c; ///< First char in CRLF or LFCR sequence - std::string m_line; ///< Current line in line protocol mode -#ifdef SOCKETS_DYNAMIC_TEMP - char *m_buf; ///< temporary read buffer -#endif - output_l m_obuf; ///< output buffer - OUTPUT *m_obuf_top; ///< output buffer on top - size_t m_transfer_limit; - size_t m_output_length; - -#ifdef HAVE_OPENSSL -static SSLInitializer m_ssl_init; - SSL_CTX *m_ssl_ctx; ///< ssl context - SSL *m_ssl; ///< ssl 'socket' - BIO *m_sbio; ///< ssl bio - std::string m_password; ///< ssl password -#endif - -#ifdef ENABLE_SOCKS4 - int m_socks4_state; ///< socks4 support - char m_socks4_vn; ///< socks4 support, temporary variable - char m_socks4_cd; ///< socks4 support, temporary variable - unsigned short m_socks4_dstport; ///< socks4 support - unsigned long m_socks4_dstip; ///< socks4 support -#endif - -#ifdef ENABLE_RESOLVER - int m_resolver_id; ///< Resolver id (if any) for current Open call -#endif - -#ifdef ENABLE_RECONNECT - bool m_b_reconnect; ///< Reconnect on lost connection flag - bool m_b_is_reconnect; ///< Trying to reconnect -#endif - -}; - - -#ifdef SOCKETS_NAMESPACE -} -#endif - -#endif // _SOCKETS_TcpSocket_H - |