linux下使用脚本自动登录远程服务器

ubuntu下的ssh客户端一直没找到象SecureCRT那样好用的工具。用ssh登录，每次都要输入密码，感觉很麻烦，而且因为字符集不相同，一般还有乱码问题，所以参照网上的一些实现自己也通过python来实现了一下。
#1.通过参数自动登录ssh远程服务器
#2.通过配置字符集解决中文乱码问题
#3.解决改变远程窗口默认较小bug，远程窗口同本地窗口大小动态改变未处理
#4.实现2级代理
#5.可以使用sftp登录来传文件(sftp,目前不能实现代理来作）

配置文件host.properties
第一列可以为id,第二列为用户名，第一列为密码，第四列为远程服务器字符集

#userid:user:password:characters
ljj51:ljj:123456:gbk

登录脚本

#!/usr/bin/env python
#coding:UTF-8
#1.通过参数自动登录ssh远程服务器
#2.通过配置字符集解决中文乱码问题
#3.解决改变远程窗口默认较小bug，远程窗口同本地窗口大小动态改变未处理
#4.实现2级代理

import os,sys,pexpect,string
import struct,fcntl,termios,signal

try:
	import pexpect
except:
	print "你没有pexpect包，试试sudo apt-get install python-pexpect"
	sys.exit(0)

def sigwinch_passthrough(sig,data):
	"""窗口改动后，自动返回当前窗口值，以便跟远程窗口同步,目前有问题"""
	s=struct.pack("HHHH",0,0,0,0)
	a=struct.pack('hhhh',fcntl.ioctl(sys.stdout.fileno(),termios.TIOCGWINSZ,s))

	#global columns,lines
	"""	self.lines=a[0]
	self.columns=a[1]
	print "resize windows size(%s,%s)"%(self.lines,self.columns)
	"""
	print a[0],a[1]

class SimpleSsh:
	def __init__(self):
		self.columns=125
		self.lines=37
		self.base="~/ssh/"
		self.filename="host.properties"

	def createSshUrl(self,paramap):
		user=paramap["user"]
		password=paramap["password"]
		host=paramap["host"]
		characters=paramap["characters"]
		conntype=paramap["conntype"]
		url="luit -encoding "+characters+" "+conntype+" "+user+"@"+host

		print "#"*40
		print "#",string.center(string.join((user,"@",host," by ",characters),""),36),"#"
		print "#",string.center("created by [e-mail]",36),"#"
		print "#"*40
		
		return url,password

	def connection(self,url,password):
		""" """
		columns=self.columns
		lines=self.lines
		try:
			p=pexpect.spawn(url)
			try:
				#signal.signal(signal.SIGWINCH,sigwinch_passthrough)
				p.setwinsize(lines,columns)
				print "resize windows(%s,%s)"%(columns,lines)
			except:
				pass
			p.expect("password:")
			p.sendline(password)
			p.interact()
		except:
			print "connection close()"
	
	def argv2map(self,userid,host,conntype):
		paramap={}
		base=self.base
		filename=self.filename
		tmp=""
		try:
			file=open(filename,"r")
		except:
			file=open(string.join(base,filename))
		content=file.readlines()

		for x in content:
			if x.startswith(userid):
				tmp=string.strip(x)

		if tmp=="":
			print "not found %s"%userid
			sys.exit(0)

		tmparray=string.split(tmp,":")
		paramap["user"]=tmparray[1]
		paramap["password"]=tmparray[2]
		paramap["userid"]=userid
		paramap["host"]=host
		paramap["characters"]=tmparray[3]
		paramap["conntype"]=conntype

		return paramap

	def initpara(self,para):
		try:
			userid=para[1]
			host=para[2]
			conntype=""
		except:
			userid=raw_input("enter your userid:")
			host=raw_input("enter your host:")
		try:
			conntype=para[3]
		except:
			conntype="ssh"

		return userid,host,conntype

	
	def handle(self,para):
		userid,host,conntype=self.initpara(para)
		paramap=self.argv2map(userid,host,conntype)
		url,password=self.createSshUrl(paramap)
		self.connection(url,password)
class ProxySsh(SimpleSsh):
	def initpara(self,para):
		self.defaultType="ssh"
		paramaparray={}
		argvarray=string.split(para,"-")
		for x in argvarray:
			if string.strip(x)=="": continue
			x=string.split(x," ")
			#print x[1],",",x[2],",",self.defaultType
			paramaparray[x[0]]=self.argv2map(x[1],x[2],self.defaultType)

		return paramaparray
	def createSshUrl(self,paramaparray):
		parakey=paramaparray.keys()
		parakey.sort()
		url="luit -encoding %character2% ssh -t %s1% \"bash -c 'ssh %s2%'\""
		print "#"*40
		for x in parakey:
			paramap=paramaparray[x]
			tmp=string.join((paramap["user"],"@",paramap["host"]),"")
			tmp1="%s"+x+"%"
			tmp2="%character"+x+"%"
			print "#",string.center(string.join((x,":",tmp,paramap["characters"]),""),36),"#"
			url=string.replace(url,tmp1,tmp)
			url=string.replace(url,tmp2,paramap["characters"])
		print "#",string.center("created by [e-mail]",36),"#"	
		print "#"*40
		try:
			p=pexpect.spawn(url)
			try:
				p.setwinsize(self.lines,self.columns)
				print "resize windows(%s,%s)"%(columns,lines)
			except:
				pass
			
			for x in parakey:
				paramap=paramaparray[x]
				password=paramap["password"]
				p.expect("password")
				p.sendline(password)
				
			p.interact()
		except:
			print "connection close()"


	def handle(self,para):
		paramaparray=self.initpara(para)
		url=self.createSshUrl(paramaparray)
		

if __name__=="__main__":
	"""help:
	./myssh.py ljj51 127.0.0.1
	./myssh.py ljj51 127.0.0.1 sftp
	./myssh.py -1 ljj51 127.0.0.1 -2 ljj52 127.0.0.2
	"""
	help="""help:
	     ./myssh.py ljj51 127.0.0.1
	     ./myssh.py ljj51 127.0.0.1 sftp
	     ./myssh.py -1 ljj51 127.0.0.1 -2 ljj52 127.0.0.2
	     """

	argvpara=string.join(sys.argv[1:]," ")
	if "-" in argvpara:
		b=ProxySsh()
		b.handle(argvpara)
	elif "help" in argvpara:
		print help
	else:
		b=SimpleSsh()
		b.handle(sys.argv)