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enhance pexpect ssh to handle new ssh key #27

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enhance pexpect ssh to handle new ssh key #27

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76 changes: 47 additions & 29 deletions common/utils/test_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1258,19 +1258,25 @@ def vtysh_config_frr_bgp_attr(
"""
BGP_AS_UPLIMIT = 4294967295
log.info("Configure BGP attributes")
PROMPT = ['# ','>>> ','> ','\$ ']
if hostname and username and password:
remote = f"{username}@{hostname}"
config = pexpect.spawn("ssh " + remote)
config.expect("password:")
ssh_newkey = 'Are you sure you want to continue connecting'
ret = config.expect([pexpect.TIMEOUT, ssh_newkey, '[P|p]assword:'])
if ret == 0:
log.failed("Error Connecting")
return
if ret == 1:
config.sendline('yes')
ret = config.expect([pexpect.TIMEOUT, '[P|p]assword:'])
if ret == 0:
log.failed("ERROR Connecting")
return
config.sendline(password)
i = config.expect(["Permission denied", "[~#\]\$]"])
if i == 0:
log.info(f"Permission denied by {hostname}. Unable to login")
config.kill(0)
elif i == 1:
log.info("Connected Successfully.")
config.sendline("vtysh")
config.expect("#")
config.expect(PROMPT)
config.sendline("vtysh")
config.expect(PROMPT)
else:
config = pexpect.spawn("vtysh")
config.expect("#")
Expand Down Expand Up @@ -1318,22 +1324,28 @@ def vtysh_config_frr_delete_bgp(asnumber, hostname="", username="", password="")
Returns: boolean True or False
"""
log.info("Delete router interface")
PROMPT = ['# ','>>> ','> ','\$ ']
if hostname and username and password:
remote = f"{username}@{hostname}"
config = pexpect.spawn("ssh " + remote)
config.expect("password:")
ssh_newkey = 'Are you sure you want to continue connecting'
ret = config.expect([pexpect.TIMEOUT, ssh_newkey, '[P|p]assword:'])
if ret == 0:
log.failed("Error Connecting")
return
if ret == 1:
config.sendline('yes')
ret = config.expect([pexpect.TIMEOUT, '[P|p]assword:'])
if ret == 0:
log.failed("ERROR Connecting")
return
config.sendline(password)
i = config.expect(["Permission denied", "[~#\]\$]"])
if i == 0:
log.info("Permission denied by {hostname}. Unable to login")
config.kill(0)
elif i == 1:
log.info(f"Connected Successfully to {hostname}")
config.sendline("vtysh")
config.expect("#")
config.expect(PROMPT)
config.sendline("vtysh")
config.expect(PROMPT)
else:
config = pexpect.spawn("vtysh")
config.expect("#")
config.expect(PROMPT)
try:
cmd = f"no router bgp {asnumber}"
config.sendline("config t")
Expand Down Expand Up @@ -1365,22 +1377,28 @@ def vtysh_config_frr_router_interface(
Returns: boolean True or False
"""
log.info("configure router interface")
PROMPT = ['# ','>>> ','> ','\$ ']
if hostname and username and password:
remote = f"{username}@{hostname}"
config = pexpect.spawn("ssh " + remote)
config.expect("password:")
ssh_newkey = 'Are you sure you want to continue connecting'
ret = config.expect([pexpect.TIMEOUT, ssh_newkey, '[P|p]assword:'])
if ret == 0:
log.failed("Error Connecting")
return
if ret == 1:
config.sendline('yes')
ret = config.expect([pexpect.TIMEOUT, '[P|p]assword:'])
if ret == 0:
log.failed("ERROR Connecting")
return
config.sendline(password)
i = config.expect(["Permission denied", "[~#\]\$]"])
if i == 0:
log.info(f"Permission denied by {hostname}. Unable to login")
config.kill(0)
elif i == 1:
log.info(f"Connected Successfully to {hostname}")
config.sendline("vtysh")
config.expect("#")
config.expect(PROMPT)
config.sendline("vtysh")
config.expect(PROMPT)
else:
config = pexpect.spawn("vtysh")
config.expect("#")
config.expect(PROMPT)
try:
if not interface:
log.failed("an interface must be provided")
Expand Down