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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
"""
import os
import time
import pexpect
import re
import sys
from foundation import foundation
class connection( foundation ):
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
"""
print( "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.
"""
print "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
"""
print( "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.
"""
print( "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
"""
print "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
"""
print "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
print "Done!"
def OnosConnectionSet (self):
"""
Intergrate for ONOS connection setup
"""
if self.masterusername == 'root':
filepath = '/root/'
else :
filepath = '/home/' + self.masterusername + '/'
self.OnosRootPathChange( filepath )
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)
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