95 lines
2.8 KiB
Python
95 lines
2.8 KiB
Python
#
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# Eric S. Raymond
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#
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# Greatly modified by Nigel W. Moriarty
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# April 2003
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#
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from pexpect import *
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import os, sys
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import getpass
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import time
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class ssh_session:
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"Session with extra state including the password to be used."
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def __init__(self, user, host, password=None, verbose=0):
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self.user = user
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self.host = host
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self.verbose = verbose
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self.password = password
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self.keys = [
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'authenticity',
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'assword:',
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'@@@@@@@@@@@@',
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'Command not found.',
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EOF,
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]
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self.f = open('ssh.out','w')
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def __repr__(self):
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outl = 'class :'+self.__class__.__name__
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for attr in self.__dict__:
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if attr == 'password':
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outl += '\n\t'+attr+' : '+'*'*len(self.password)
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else:
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outl += '\n\t'+attr+' : '+str(getattr(self, attr))
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return outl
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def __exec(self, command):
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"Execute a command on the remote host. Return the output."
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child = spawn(command,
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#timeout=10,
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)
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if self.verbose:
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sys.stderr.write("-> " + command + "\n")
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seen = child.expect(self.keys)
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self.f.write(str(child.before) + str(child.after)+'\n')
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if seen == 0:
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child.sendline('yes')
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seen = child.expect(self.keys)
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if seen == 1:
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if not self.password:
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self.password = getpass.getpass('Remote password: ')
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child.sendline(self.password)
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child.readline()
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time.sleep(5)
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# Added to allow the background running of remote process
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if not child.isalive():
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seen = child.expect(self.keys)
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if seen == 2:
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lines = child.readlines()
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self.f.write(lines)
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if self.verbose:
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sys.stderr.write("<- " + child.before + "|\n")
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try:
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self.f.write(str(child.before) + str(child.after)+'\n')
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except:
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pass
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self.f.close()
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return child.before
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def ssh(self, command):
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return self.__exec("ssh -l %s %s \"%s\"" \
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% (self.user,self.host,command))
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def scp(self, src, dst):
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return self.__exec("scp %s %s@%s:%s" \
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% (src, session.user, session.host, dst))
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def exists(self, file):
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"Retrieve file permissions of specified remote file."
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seen = self.ssh("/bin/ls -ld %s" % file)
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if string.find(seen, "No such file") > -1:
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return None # File doesn't exist
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else:
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return seen.split()[0] # Return permission field of listing.
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