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"""
Description:
This file is used to make connections
Include ssh & exchange public-key to each other so that
it can run without password
lanqinglong@huawei.com
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
#
"""
import logging
import os
import pexpect
import re
from foundation import Foundation
class Connection(Foundation):
logger = logging.getLogger(__name__)
def __init__(self):
Foundation.__init__(self)
self.loginfo = Foundation()
def AddKnownHost(self, handle, ipaddr, username, password):
"""
Add an user to known host,so that onos can login in with onos $ipaddr.
parameters:
ipaddr: ip address
username: login user name
password: login password
"""
self.logger.info("Now Adding an user to known hosts " + ipaddr)
login = handle
login.sendline("ssh -l %s -p 8101 %s" % (username, ipaddr))
index = 0
while index != 2:
index = login.expect(['assword:', 'yes/no', pexpect.EOF,
pexpect.TIMEOUT])
if index == 0:
login.sendline(password)
login.sendline("logout")
index = login.expect(["closed", pexpect.EOF])
if index == 0:
self.loginfo.log("Add SSH Known Host Success!")
break
else:
self.loginfo.log("Add SSH Known Host Failed! "
"Please Check!")
break
login.prompt()
if index == 1:
login.sendline('yes')
def GetEnvValue(self, handle, envname):
"""
os.getenv only returns current user value
GetEnvValue returns a environment value of
current handle
eg: GetEnvValue(handle,'HOME')
"""
envhandle = handle
envhandle.sendline('echo $' + envname)
envhandle.prompt()
reg = envname + '\r\n(.*)\r'
envaluereg = re.compile(reg)
envalue = envaluereg.search(envhandle.before)
if envalue:
return envalue.groups()[0]
else:
return None
def Gensshkey(self, handle):
"""
Generate ssh keys, used for some server have no sshkey.
"""
self.logger.info("Now Generating SSH keys...")
# Here file name may be id_rsa or id_ecdsa or others
# So here will have a judgement
keysub = handle
filepath = self.GetEnvValue(keysub, 'HOME') + '/.ssh'
filelist = os.listdir(filepath)
for item in filelist:
if 'id' in item:
self.loginfo.log("SSH keys are exsit in ssh directory.")
return True
keysub.sendline("ssh-keygen -t rsa")
Result = 0
while Result != 2:
Result = keysub.expect(["Overwrite", "Enter", pexpect.EOF,
'PEXPECT]#', pexpect.TIMEOUT])
if Result == 0:
keysub.sendline("y")
if Result == 1 or Result == 2:
keysub.sendline("\n")
if Result == 3:
self.loginfo.log("Generate SSH key success.")
keysub.prompt()
break
if Result == 4:
self.loginfo.log("Generate SSH key failed.")
keysub.prompt()
break
def GetRootAuth(self, password):
"""
Get root user
parameters:
password: root login password
"""
self.logger.info("Now changing to user root")
login = pexpect.spawn("su - root")
index = 0
while index != 2:
index = login.expect(['assword:', "failure",
pexpect.EOF, pexpect.TIMEOUT])
if index == 0:
login.sendline(password)
if index == 1:
self.loginfo.log("Change user to root failed.")
login.interact()
def ReleaseRootAuth(self):
"""
Exit root user.
"""
self.logger.info("Now Release user root")
login = pexpect.spawn("exit")
index = login.expect(['logout', pexpect.EOF, pexpect.TIMEOUT])
if index == 0:
self.loginfo.log("Release root user success.")
if index == 1:
self.loginfo.log("Release root user failed.")
login.interact()
def AddEnvIntoBashrc(self, envalue):
"""
Add Env var into /etc/profile.
parameters:
envalue: environment value to add
"""
self.logger.info("Now Adding bash environment")
fileopen = open("/etc/profile", 'r')
findContext = 1
while findContext:
findContext = fileopen.readline()
result = findContext.find(envalue)
if result != -1:
break
fileopen.close
if result == -1:
envAdd = open("/etc/profile", 'a+')
envAdd.writelines("\n" + envalue)
envAdd.close()
self.loginfo.log("Add env to bashrc success!")
def OnosRootPathChange(self, onospath):
"""
Change ONOS root path in file:bash_profile
onospath: path of onos root
"""
self.logger.info("Now Changing ONOS Root Path")
filepath = onospath + 'onos/tools/dev/bash_profile'
line = open(filepath, 'r').readlines()
lenall = len(line) - 1
for i in range(lenall):
if "export ONOS_ROOT" in line[i]:
line[i] = 'export ONOS_ROOT=' + onospath + 'onos\n'
NewFile = open(filepath, 'w')
NewFile.writelines(line)
NewFile.close
self.logger.info("Done!")
def OnosConnectionSet(self):
"""
Intergrate for ONOS connection setup
"""
if self.masterusername == 'root':
filepath = '/root/'
else:
filepath = '/home/' + self.masterusername + '/'
filepath = os.path.join(filepath, "onos/tools/dev/bash_profile")
self.AddEnvIntoBashrc("source " + filepath + "\n")
self.AddEnvIntoBashrc("export OCT=" + self.OCT)
self.AddEnvIntoBashrc("export OC1=" + self.OC1)
self.AddEnvIntoBashrc("export OC2=" + self.OC2)
self.AddEnvIntoBashrc("export OC3=" + self.OC3)
self.AddEnvIntoBashrc("export OCN=" + self.OCN)
self.AddEnvIntoBashrc("export OCN2=" + self.OCN2)
self.AddEnvIntoBashrc("export localhost=" + self.localhost)
|
