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  1 /******************************************************************************
  2 *
  3 * Copyright (C) 2004-2008, The Gentee Group. All rights reserved. 
  4 * This file is part of the Gentee open source project - http://www.gentee.com. 
  5 * 
  6 * THIS FILE IS PROVIDED UNDER THE TERMS OF THE GENTEE LICENSE ("AGREEMENT"). 
  7 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS FILE CONSTITUTES RECIPIENTS 
  8 * ACCEPTANCE OF THE AGREEMENT.
  9 *
 10 * Author: Alexey Krivonogov ( gentee )
 11 *
 12 ******************************************************************************/
 13 
 14 include : $"..\registry\registry.g"
 15 
 16 define <export>
 17 {
 18 /*-----------------------------------------------------------------------------
 19 * Id: proxyflag D
 20 * 
 21 * Summary: Proxy types.
 22 *
 23 -----------------------------------------------------------------------------*/
 24    PROXY_HTTP  = 0x0001       // Use a proxy server for the HTTP protocol.  
 25    PROXY_FTP   = 0x0002       // Use a proxy server for the FTP protocol.
 26    PROXY_ALL   = 0x0003       // Use a proxy server for all protocols.
 27    PROXY_EXPLORER  = 0x0080   // Take the proxy server information from the /
 28                               // Internet Explorer settings. In this case /
 29                               // the proxyname parameter can be empty.
 30    
 31 //-----------------------------------------------------------------------------
 32 }
 33 
 34 operator proxyinfo =( proxyinfo left right )
 35 {
 36    left.host = right.host
 37    left.port = right.port
 38    left.enable = right.enable
 39    return left
 40 }
 41 
 42 /*-----------------------------------------------------------------------------
 43 * Id: inet_proxy F
 44 *
 45 * Summary: Using a proxy server. The functions allows you to specify a 
 46            proxy server to be used for connecting to the Internet. 
 47 *
 48 * Params: flag - The flag specifying for which protocols the specified proxy /
 49                  should be used. $$[proxyflag] 
 50           proxyname - The name of the proxy server. It must contain a host /
 51                       name and a port number separated by a colon. 
 52 *  
 53 * Return: #lng/retf# 
 54 *
 55 -----------------------------------------------------------------------------*/
 56 
 57 func uint inet_proxy( uint flag, str proxyname )
 58 {
 59    arrstr     shostport
 60    proxyinfo  ieproxy
 61    str        regie  stemp
 62    uint       i
 63    
 64    regie = $"Software\Microsoft\Windows\CurrentVersion\Internet Settings"
 65    
 66    ieproxy.enable = 1
 67    if flag & $PROXY_EXPLORER
 68    {
 69       ieproxy.enable = reggetnum( $HKEY_CURRENT_USER, regie,
 70                                      "ProxyEnable", 0 )
 71       stemp.regget( $HKEY_CURRENT_USER, regie, "ProxyServer" )
 72    }
 73    else : stemp = proxyname
 74 
 75    stemp.split( shostport, ':', $SPLIT_FIRST | $SPLIT_NOSYS )
 76    ieproxy.host = shostport[0]
 77    if *shostport > 1 : ieproxy.port = uint( shostport[1] )  
 78 
 79    if flag & $PROXY_HTTP : proxy[ $INET_HTTP ] = ieproxy
 80    if flag & $PROXY_FTP : proxy[ $INET_FTP ] = ieproxy
 81 
 82    return 1
 83 }
 84 
 85 /*-----------------------------------------------------------------------------
 86 * Id: socket_urlconnect F2
 87 *
 88 * Summary: Creating and connecting a socket to a URL. The method is used to
 89            create and connect a socket to the specified Internet address. 
 90            If a proxy server is enabled, the connection will be established 
 91            via it.
 92 *
 93 * Params: url - The URL address for connecting. 
 94           host - The string for getting the host from the URL. 
 95           path - The string for getting the relative path from the URL. 
 96 *  
 97 * Return: #lng/retf# 
 98 *
 99 -----------------------------------------------------------------------------*/
100 
101 method uint socket.urlconnect( str url, str host, str path )
102 {
103    str   port
104    uint  protocol = $INET_HTTP
105    uint  defport = 80
106    
107    this.flag &= ~$SOCKF_PROXY
108    if url.iurl( host, port, path ) == $INET_FTP 
109    {
110       this.flag |= $SOCKF_FTP
111    } 
112    if this.flag & $SOCKF_FTP : protocol = $INET_FTP; defport = 21
113 
114    if proxy[ protocol ].enable
115    {
116       this.flag |= $SOCKF_PROXY
117       this.host = proxy[ protocol ].host
118       this.port = proxy[ protocol ].port
119    }
120    else
121    {
122       this.host = host
123       this.port = ?( !*port, defport, uint( port ))
124    }
125    if *port : host += ":\(port)"
126 //   print("URL: \(this.host):\(this.port)\n")   
127    return this.connect()
128 }
129 
130 /*-----------------------------------------------------------------------------
131 ** Id: inet_proxyenable F
132 *
133 * Summary: Enabling/disabling a proxy server. The function allows you to 
134            enable or disable the proxy server for various protocols. 
135            Initially, the proxy server must be specified using the 
136            #a(inet_proxy) function.
137 *
138 * Params: flag - The flag specifying for which protocols the proxy should /
139                  be enabled or disabled. $$[proxyflag]
140           enable - Specify 1 to enable the proxy server or 0 to disable /
141                    the proxy server.     
142 *  
143 * Return: #lng/retf# 
144 *
145 -----------------------------------------------------------------------------*/
146 
147 func uint inet_proxyenable( uint flag, uint enable )
148 {
149    uint i
150 
151    if flag & $PROXY_HTTP 
152    {
153       if !*proxy[ $INET_HTTP ].host : return 0
154       proxy[ $INET_HTTP ].enable = enable
155    }
156    if flag & $PROXY_FTP 
157    {
158       if !*proxy[ $INET_FTP ].host : return 0
159       proxy[ $INET_FTP ].enable = enable
160    }
161    return 1   
162 }