Пример 3. реализации шлюза Cisco2 на BeanShell c управлением telnet

login as: xxxxxx
 
xxxxxx@X.X.X.X's password:
 
 
 
ciscomy#conf t
 
Enter configuration commands, one per line.  End with CNTL/Z.
 
ciscomy(config)#ip access-list standard xxx
 
ciscomy(config-std-nacl)#permit _ip-address-1_
 
ciscomy(config-std-nacl)#permit _ip-address-2_
 
ciscomy(config-std-nacl)#no permit _ip-address-1_
 
ciscomy(config-std-nacl)#no permit _ip-address-2_
 
ciscomy(config-std-nacl)#exit
 
ciscomy(config)#exit
 
ciscomy#

do sh ip access-list ИМЯ

permit 192.168.226.130 check=170
 
    permit 192.168.227.160 check=72
 
    permit 192.168.227.165 (9 matches) check=146
 
    permit 192.168.225.210 (2 matches) check=4
 
    permit 192.168.225.252 (3 matches) check=170
 
    permit 192.168.225.10 check=146
 
    permit 192.168.224.2
 
    permit 192.168.224.5 check=60
 
    permit 192.168.226.40 (6 matches) check=186
 
    permit 192.168.227.45
 
    deny   any (11128587 matches)

[DEFAULT]
[OPEN]
<LOOP>
 permit {A}
</LOOP>
[/OPEN]
[CLOSE]
<LOOP>
 no permit {A}
</LOOP>
[/CLOSE]
[/DEFAULT]

import java.util.*;
import java.util.regex.*;
import bitel.billing.common.module.ipn.*;
import bitel.billing.server.ipn.bean.*;
import bitel.billing.server.util.*;
import bitel.billing.server.util.ssh.*;
import bitel.billing.common.*;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
 
 
 
protected void doSync()
{
	host = gate.getHost();
	port = gate.getPort();
	gid = gate.getId();
 
	gateSetup = new DefaultServerSetup( gate.getConfig(), "\r\n" );        
 
	login = gateSetup.getStringValue( "login"); 
	pswd = gate.getKeyword();
 
	acl = gateSetup.getStringValue( "acl_name"); 
	result = new StringBuffer(); 
 
 
	if( log.isDebugEnabled() ) 
	{ 
		log.debug( gate.getId() + " gate: " + host + ":" + port  + " login: " + login + " pswd: " +       pswd ); 
	}
 
 
 
    session = null;
 
    try
    {
		session = new SSHSession(  host, port, login, pswd );
		session.connect();
 
		result.append(session.command( "terminal length 0" ) );
 
 
		result = new StringBuffer();
		result.append( session.command( "configure terminal" ) );
		result.append( session.command( "ip access-list standard " + acl ) );				
 
		buffer = getBuffer( session, result, acl );
		doCommands( session, result, buffer ); 
 
       result.append( session.command( "end" ) );  
       result.append( session.command( "exit", false ) );
 
 
       if (log.isDebugEnabled())
       {
        	log.debug( "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" );
        	log.debug( result.toString() );
        	log.debug( "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" );
       }
 
        // пауза пока считает команду exit
        Thread.sleep( 100 );
    }
    catch ( Exception e )
    {
    	throw new RuntimeException ( e );
    }
    finally
    {
        if( session != null )
        {
            session.disconnect();
        }
    }
}
 
void doCommands( session, result, buffer )
{    
	for( status : statusList )
	{			
		log.info( "status.status=" + status.status );		
		isPermitted = isUserPermited ( status, buffer);
 
 
		//  если правило есть, а юзер заблокирован - удаляем правило
 
		if ( isPermitted && status.status > 0 )
		{
			rules = getCloseRules( status );
		}
		else if ( !isPermitted && status.status == 0 )
		// правила нет, а юзер открыт - добавляем правило		
		{	
			rules = getOpenRules( status );			
		}
		else
		{
			continue;
		}            
		for ( rule : rules )
		{					
			result.append(  session.command( rule ) );				
		}
	}
}
 
 
private List getOpenRules( status )
{
 
	log.info( "getting open rules" );			
	return getRules( status, "\\[OPEN\\]((.|\n)*)\\[/OPEN\\]" );
}
 
private List  getCloseRules( status )
{
	log.info( "getting close rules" );				
	return getRules( status, "\\[CLOSE\\]((.|\n)*)\\[/CLOSE\\]");
}
 
 
 
 
private List  getRules( status, String template )
{
	// пользовательское правило, без типа - то все оставляем как есть
	rule = status.rule.getRuleText();
 
 
	//типизированное правило
	if( status.ruleType != null )
 
	{	
		ruleText = ManadUtils.getRule( status.gateType, status.ruleType );
		Map replacements =  new HashMap ();		
		rule = ManadUtils.generateRule( ruleText, status.rule.getRuleText(), replacements, status.ruleType );
	}	
 
	Pattern pattern = Pattern.compile( template );
	Matcher m = pattern.matcher( rule );
	if (m.find())
	{
		rule = m.group( 1 );
	}		
 
	log.info("rule=" + rule);	
 
	rule.replaceAll( "\r", "" );
	parts  = rule.split( "\n" );
 
	result = new ArrayList();
	for ( part : parts )
	{
		if ( !Utils.isEmptyString( part ))
		{
			result.add( part );
		}
	}
 
 
	return result;
}
 
private getBuffer( session, result, acl )
{
	buffer = session.command( "do sh ip access-list " + acl ); 
	result.append( buffer );	
	return buffer;
}
 
private isUserPermited ( status, buffer)
{
	addreses = status.rule.getRuleText().split( "\\s*,\\s*" );
	//
	for ( i = 0; i < addreses.length; i++)
	{		
		address = IPUtils.convertLongIpToString( Utils.parseLongString( addreses[i], 0 ) );
		log.info( "ip=" + address);
 
		address = address.replace( ".", "\\." );
 
		Pattern pattern = Pattern.compile( ".*permit\\s" + address + "(\\s.*)?$", Pattern.DOTALL );
        Matcher m = pattern.matcher( buffer );
		//если хотя бы один адрес отстуствует, то считаем что клиент закрыт        
		if ( !m.find() )													
		{
			log.info( "is not permitted" );			
			return false;		
		} 
 
	}	
	log.info( "is permitted" );	
	return true;
}