creating a file sshconnection.py with class SSHConnection (methods: open, command, close, copyin, copyout); and modifying main.py to import this file and call the SSHConnection class from the new file
This commit is contained in:
Gabriele Perrone
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#-----------------------------------------------------------
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# Class Declaration
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#-----------------------------------------------------------
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class SSHConnection():
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def __init__(self):
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def open(self, ipaddress, username, password):
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count = 0
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connect_status = False
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while count < 4:
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self.ssh = pexpect.spawn('ssh', [username + '@' + ipaddress], timeout = 5)
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self.sshresponse = self.ssh.expect(['Are you sure you want to continue connecting (yes/no)?', 'password:', 'Last login', pexpect.EOF, pexpect.TIMEOUT])
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if self.sshresponse == 0:
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self.ssh.sendline('yes')
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self.ssh.expect('password:')
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self.ssh.sendline(password)
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self.sshresponse = self.ssh.expect(['\$', 'Permission denied', 'password:', pexpect.EOF, pexpect.TIMEOUT])
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if self.sshresponse == 0:
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count = 10
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connect_status = True
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else:
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logging.debug('self.sshresponse = ' + str(self.sshresponse))
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elif self.sshresponse == 1:
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self.ssh.sendline(password)
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self.sshresponse = self.ssh.expect(['\$', 'Permission denied', 'password:', pexpect.EOF, pexpect.TIMEOUT])
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if self.sshresponse == 0:
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count = 10
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connect_status = True
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else:
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logging.debug('self.sshresponse = ' + str(self.sshresponse))
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elif self.sshresponse == 2:
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# Checking if we are really on the remote client defined by its IP address
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self.command('stdbuf -o0 ifconfig | egrep --color=never "inet addr:|inet "', '\$', 5)
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result = re.search(str(ipaddress), str(self.ssh.before))
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if result is None:
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self.close()
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else:
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count = 10
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connect_status = True
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else:
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# debug output
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logging.debug(str(self.ssh.before))
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logging.debug('self.sshresponse = ' + str(self.sshresponse))
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# adding a tempo when failure
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if not connect_status:
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time.sleep(1)
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count += 1
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if connect_status:
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pass
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else:
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sys.exit('CiTestObj.Connection Failed')
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def command(self, commandline, expectedline, timeout):
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logging.debug(commandline)
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self.ssh.timeout = timeout
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self.ssh.sendline(commandline)
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self.sshresponse = self.ssh.expect([expectedline, pexpect.EOF, pexpect.TIMEOUT])
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if self.sshresponse == 0:
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return 0
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elif self.sshresponse == 1:
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logging.debug('\u001B[1;37;41m Unexpected EOF \u001B[0m')
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logging.debug('Expected Line : ' + expectedline)
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sys.exit(self.sshresponse)
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elif self.sshresponse == 2:
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logging.debug('\u001B[1;37;41m Unexpected TIMEOUT \u001B[0m')
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logging.debug('Expected Line : ' + expectedline)
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result = re.search('ping |iperf |picocom', str(commandline))
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if result is None:
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logging.debug(str(self.ssh.before))
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sys.exit(self.sshresponse)
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else:
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return -1
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else:
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logging.debug('\u001B[1;37;41m Unexpected Others \u001B[0m')
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logging.debug('Expected Line : ' + expectedline)
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sys.exit(self.sshresponse)
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def close(self):
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self.ssh.timeout = 5
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self.ssh.sendline('exit')
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self.sshresponse = self.ssh.expect([pexpect.EOF, pexpect.TIMEOUT])
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if self.sshresponse == 0:
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pass
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elif self.sshresponse == 1:
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if not self.picocom_closure:
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logging.debug('\u001B[1;37;41m Unexpected TIMEOUT during closing\u001B[0m')
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else:
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logging.debug('\u001B[1;37;41m Unexpected Others during closing\u001B[0m')
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def copyin(self, ipaddress, username, password, source, destination):
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count = 0
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copy_status = False
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logging.debug('scp '+ username + '@' + ipaddress + ':' + source + ' ' + destination)
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while count < 10:
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scp_spawn = pexpect.spawn('scp '+ username + '@' + ipaddress + ':' + source + ' ' + destination, timeout = 100)
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scp_response = scp_spawn.expect(['Are you sure you want to continue connecting (yes/no)?', 'password:', pexpect.EOF, pexpect.TIMEOUT])
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if scp_response == 0:
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scp_spawn.sendline('yes')
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scp_spawn.expect('password:')
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scp_spawn.sendline(password)
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scp_response = scp_spawn.expect(['\$', 'Permission denied', 'password:', pexpect.EOF, pexpect.TIMEOUT])
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if scp_response == 0:
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count = 10
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copy_status = True
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else:
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logging.debug('1 - scp_response = ' + str(scp_response))
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elif scp_response == 1:
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scp_spawn.sendline(password)
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scp_response = scp_spawn.expect(['\$', 'Permission denied', 'password:', pexpect.EOF, pexpect.TIMEOUT])
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if scp_response == 0 or scp_response == 3:
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count = 10
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copy_status = True
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else:
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logging.debug('2 - scp_response = ' + str(scp_response))
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elif scp_response == 2:
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count = 10
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copy_status = True
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else:
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logging.debug('3 - scp_response = ' + str(scp_response))
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# adding a tempo when failure
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if not copy_status:
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time.sleep(1)
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count += 1
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if copy_status:
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return 0
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else:
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return -1
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def copyout(self, ipaddress, username, password, source, destination):
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count = 0
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copy_status = False
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logging.debug('scp ' + source + ' ' + username + '@' + ipaddress + ':' + destination)
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while count < 4:
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scp_spawn = pexpect.spawn('scp ' + source + ' ' + username + '@' + ipaddress + ':' + destination, timeout = 100)
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scp_response = scp_spawn.expect(['Are you sure you want to continue connecting (yes/no)?', 'password:', pexpect.EOF, pexpect.TIMEOUT])
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if scp_response == 0:
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scp_spawn.sendline('yes')
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scp_spawn.expect('password:')
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scp_spawn.sendline(password)
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scp_response = scp_spawn.expect(['\$', 'Permission denied', 'password:', pexpect.EOF, pexpect.TIMEOUT])
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if scp_response == 0:
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count = 10
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copy_status = True
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else:
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logging.debug('1 - scp_response = ' + str(scp_response))
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elif scp_response == 1:
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scp_spawn.sendline(password)
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scp_response = scp_spawn.expect(['\$', 'Permission denied', 'password:', pexpect.EOF, pexpect.TIMEOUT])
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if scp_response == 0 or scp_response == 3:
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count = 10
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copy_status = True
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else:
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logging.debug('2 - scp_response = ' + str(scp_response))
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elif scp_response == 2:
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count = 10
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copy_status = True
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else:
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logging.debug('3 - scp_response = ' + str(scp_response))
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# adding a tempo when failure
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if not copy_status:
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time.sleep(1)
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count += 1
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if copy_status:
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pass
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else:
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sys.exit('SCP failed')
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