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Diffstat (limited to 'src/net/sourceforge/jsocks/Proxy.java')
| -rw-r--r-- | src/net/sourceforge/jsocks/Proxy.java | 404 |
1 files changed, 0 insertions, 404 deletions
diff --git a/src/net/sourceforge/jsocks/Proxy.java b/src/net/sourceforge/jsocks/Proxy.java deleted file mode 100644 index 381c0a0..0000000 --- a/src/net/sourceforge/jsocks/Proxy.java +++ /dev/null @@ -1,404 +0,0 @@ -package net.sourceforge.jsocks; -import java.io.IOException; -import java.io.InputStream; -import java.io.InterruptedIOException; -import java.io.OutputStream; -import java.net.InetAddress; -import java.net.Socket; -import java.net.UnknownHostException; - -/** - Abstract class Proxy, base for classes Socks4Proxy and Socks5Proxy. - Defines methods for specifying default proxy, to be - used by all classes of this package. -*/ - -public abstract class Proxy{ - -//Data members - //protected InetRange directHosts = new InetRange(); - - protected InetAddress proxyIP = null; - protected String proxyHost = null; - protected int proxyPort; - protected Socket proxySocket = null; - - protected InputStream in; - protected OutputStream out; - - protected int version; - - protected Proxy chainProxy = null; - - -//Protected static/class variables - protected static Proxy defaultProxy = null; - -//Constructors -//==================== - Proxy(String proxyHost, int proxyPort) throws UnknownHostException { - this.proxyHost = proxyHost; - this.proxyIP = InetAddress.getByName(proxyHost); - this.proxyPort = proxyPort; - } - - Proxy(Proxy chainProxy,InetAddress proxyIP,int proxyPort){ - this.chainProxy = chainProxy; - this.proxyIP = proxyIP; - this.proxyPort = proxyPort; - } - - Proxy(InetAddress proxyIP,int proxyPort){ - this.proxyIP = proxyIP; - this.proxyPort = proxyPort; - } - - Proxy(Proxy p){ - this.proxyIP = p.proxyIP; - this.proxyPort = p.proxyPort; - this.version = p.version; - } - -//Public instance methods -//======================== - - /** - Get the port on which proxy server is running. - * @return Proxy port. - */ - public int getPort(){ - return proxyPort; - } - /** - Get the ip address of the proxy server host. - * @return Proxy InetAddress. - */ - public InetAddress getInetAddress(){ - return proxyIP; - } - - /** - Get string representation of this proxy. - * @returns string in the form:proxyHost:proxyPort \t Version versionNumber - */ - public String toString(){ - return (""+proxyIP.getHostName()+":"+proxyPort+"\tVersion "+version); - } - - -//Public Static(Class) Methods -//============================== - - /** - * Sets SOCKS4 proxy as default. - @param hostName Host name on which SOCKS4 server is running. - @param port Port on which SOCKS4 server is running. - @param user Username to use for communications with proxy. - */ - public static void setDefaultProxy(String hostName,int port,String user) - throws UnknownHostException{ - defaultProxy = new Socks4Proxy(hostName,port,user); - } - - /** - * Sets SOCKS4 proxy as default. - @param ipAddress Host address on which SOCKS4 server is running. - @param port Port on which SOCKS4 server is running. - @param user Username to use for communications with proxy. - */ - public static void setDefaultProxy(InetAddress ipAddress,int port, - String user){ - defaultProxy = new Socks4Proxy(ipAddress,port,user); - } - /** - * Sets SOCKS5 proxy as default. - * Default proxy only supports no-authentication. - @param hostName Host name on which SOCKS5 server is running. - @param port Port on which SOCKS5 server is running. - */ - public static void setDefaultProxy(String hostName,int port) - throws UnknownHostException{ - defaultProxy = new Socks5Proxy(hostName,port); - } - /** - * Sets SOCKS5 proxy as default. - * Default proxy only supports no-authentication. - @param ipAddress Host address on which SOCKS5 server is running. - @param port Port on which SOCKS5 server is running. - */ - public static void setDefaultProxy(InetAddress ipAddress,int port){ - defaultProxy = new Socks5Proxy(ipAddress,port); - } - /** - * Sets default proxy. - @param p Proxy to use as default proxy. - */ - public static void setDefaultProxy(Proxy p){ - defaultProxy = p; - } - - /** - Get current default proxy. - * @return Current default proxy, or null if none is set. - */ - public static Proxy getDefaultProxy(){ - return defaultProxy; - } - - /** - Parses strings in the form: host[:port:user:password], and creates - proxy from information obtained from parsing. - <p> - Defaults: port = 1080.<br> - If user specified but not password, creates Socks4Proxy, if user - not specified creates Socks5Proxy, if both user and password are - speciefied creates Socks5Proxy with user/password authentication. - @param proxy_entry String in the form host[:port:user:password] - @return Proxy created from the string, null if entry was somehow - invalid(host unknown for example, or empty string) - */ - public static Proxy parseProxy(String proxy_entry){ - - String proxy_host; - int proxy_port = 1080; - String proxy_user = null; - String proxy_password = null; - Proxy proxy; - - java.util.StringTokenizer st = new java.util.StringTokenizer( - proxy_entry,":"); - if(st.countTokens() < 1) return null; - - proxy_host = st.nextToken(); - if(st.hasMoreTokens()) - try{ - proxy_port = Integer.parseInt(st.nextToken().trim()); - }catch(NumberFormatException nfe){} - - if(st.hasMoreTokens()) - proxy_user = st.nextToken(); - - if(st.hasMoreTokens()) - proxy_password = st.nextToken(); - - try{ - if(proxy_user == null) - proxy = new Socks5Proxy(proxy_host,proxy_port); - else if(proxy_password == null) - proxy = new Socks4Proxy(proxy_host,proxy_port,proxy_user); - else{ - proxy = new Socks5Proxy(proxy_host,proxy_port); - /* - UserPasswordAuthentication upa = new UserPasswordAuthentication( - proxy_user, proxy_password); - - ((Socks5Proxy)proxy).setAuthenticationMethod(upa.METHOD_ID,upa); - */ - } - }catch(UnknownHostException uhe){ - return null; - } - - return proxy; - } - - -//Protected Methods -//================= - - protected void startSession()throws SocksException{ - try{ - proxySocket = new Socket(proxyIP,proxyPort); - in = proxySocket.getInputStream(); - out = proxySocket.getOutputStream(); - }catch(SocksException se){ - throw se; - }catch(IOException io_ex){ - throw new SocksException(SOCKS_PROXY_IO_ERROR,""+io_ex); - } - } - - protected abstract Proxy copy(); - protected abstract ProxyMessage formMessage(int cmd,InetAddress ip,int port); - protected abstract ProxyMessage formMessage(int cmd,String host,int port) - throws UnknownHostException; - protected abstract ProxyMessage formMessage(InputStream in) - throws SocksException, - IOException; - - - protected ProxyMessage connect(InetAddress ip,int port) - throws SocksException{ - try{ - startSession(); - ProxyMessage request = formMessage(SOCKS_CMD_CONNECT, - ip,port); - return exchange(request); - }catch(SocksException se){ - endSession(); - throw se; - } - } - protected ProxyMessage connect(String host,int port) - throws UnknownHostException,SocksException{ - try{ - startSession(); - ProxyMessage request = formMessage(SOCKS_CMD_CONNECT, - host,port); - return exchange(request); - }catch(SocksException se){ - endSession(); - throw se; - } - } - - protected ProxyMessage bind(InetAddress ip,int port) - throws SocksException{ - try{ - startSession(); - ProxyMessage request = formMessage(SOCKS_CMD_BIND, - ip,port); - return exchange(request); - }catch(SocksException se){ - endSession(); - throw se; - } - } - protected ProxyMessage bind(String host,int port) - throws UnknownHostException,SocksException{ - try{ - startSession(); - ProxyMessage request = formMessage(SOCKS_CMD_BIND, - host,port); - return exchange(request); - }catch(SocksException se){ - endSession(); - throw se; - } - } - - protected ProxyMessage accept() - throws IOException,SocksException{ - ProxyMessage msg; - try{ - msg = formMessage(in); - }catch(InterruptedIOException iioe){ - throw iioe; - }catch(IOException io_ex){ - endSession(); - throw new SocksException(SOCKS_PROXY_IO_ERROR,"While Trying accept:" - +io_ex); - } - return msg; - } - - protected ProxyMessage udpAssociate(InetAddress ip,int port) - throws SocksException{ - try{ - startSession(); - ProxyMessage request = formMessage(SOCKS_CMD_UDP_ASSOCIATE, - ip,port); - if(request != null) - return exchange(request); - }catch(SocksException se){ - endSession(); - throw se; - } - //Only get here if request was null - endSession(); - throw new SocksException(SOCKS_METHOD_NOTSUPPORTED, - "This version of proxy does not support UDP associate, use version 5"); - } - protected ProxyMessage udpAssociate(String host,int port) - throws UnknownHostException,SocksException{ - try{ - startSession(); - ProxyMessage request = formMessage(SOCKS_CMD_UDP_ASSOCIATE, - host,port); - if(request != null) return exchange(request); - }catch(SocksException se){ - endSession(); - throw se; - } - //Only get here if request was null - endSession(); - throw new SocksException(SOCKS_METHOD_NOTSUPPORTED, - "This version of proxy does not support UDP associate, use version 5"); - } - - - protected void endSession(){ - try{ - if(proxySocket!=null) proxySocket.close(); - proxySocket = null; - }catch(IOException io_ex){ - } - } - - /** - *Sends the request to SOCKS server - */ - protected void sendMsg(ProxyMessage msg)throws SocksException, - IOException{ - msg.write(out); - } - - /** - * Reads the reply from the SOCKS server - */ - protected ProxyMessage readMsg()throws SocksException, - IOException{ - return formMessage(in); - } - /** - *Sends the request reads reply and returns it - *throws exception if something wrong with IO - *or the reply code is not zero - */ - protected ProxyMessage exchange(ProxyMessage request) - throws SocksException{ - ProxyMessage reply; - try{ - request.write(out); - reply = formMessage(in); - }catch(SocksException s_ex){ - throw s_ex; - }catch(IOException ioe){ - throw(new SocksException(SOCKS_PROXY_IO_ERROR,""+ioe)); - } - return reply; - } - - -//Private methods -//=============== - - -//Constants - - public static final int SOCKS_SUCCESS =0; - public static final int SOCKS_FAILURE =1; - public static final int SOCKS_BADCONNECT =2; - public static final int SOCKS_BADNETWORK =3; - public static final int SOCKS_HOST_UNREACHABLE =4; - public static final int SOCKS_CONNECTION_REFUSED =5; - public static final int SOCKS_TTL_EXPIRE =6; - public static final int SOCKS_CMD_NOT_SUPPORTED =7; - public static final int SOCKS_ADDR_NOT_SUPPORTED =8; - - public static final int SOCKS_NO_PROXY =1<<16; - public static final int SOCKS_PROXY_NO_CONNECT =2<<16; - public static final int SOCKS_PROXY_IO_ERROR =3<<16; - public static final int SOCKS_AUTH_NOT_SUPPORTED =4<<16; - public static final int SOCKS_AUTH_FAILURE =5<<16; - public static final int SOCKS_JUST_ERROR =6<<16; - - public static final int SOCKS_DIRECT_FAILED =7<<16; - public static final int SOCKS_METHOD_NOTSUPPORTED =8<<16; - - - public static final int SOCKS_CMD_CONNECT =0x1; - static final int SOCKS_CMD_BIND =0x2; - static final int SOCKS_CMD_UDP_ASSOCIATE =0x3; - -} |