def pty_based_auth(auth_backend, pty):
"""
Show a username/password login prompt.
Return username when authentication succeeded.
"""
tries = 0
while True:
# Password authentication required for this session?
sys.stdout.write('\033[2J\033[0;0H') # Clear screen
sys.stdout.write(colored('Please authenticate\r\n\r\n', 'cyan'))
if tries:
sys.stdout.write(colored(' Authentication failed, try again\r\n', 'red'))
try:
console = Console(pty)
username = console.input('Username', False)
password = console.input('Password', True)
except NoInput:
raise NotAuthenticated
if auth_backend.authenticate(username, password):
sys.stdout.write(colored(' ' * 40 + 'Authentication successful\r\n\r\n', 'green'))
return username
else:
tries += 1
if tries == 3:
raise NotAuthenticated
def pty_based_auth(auth_backend, pty):
"""
Show a username/password login prompt.
Return username when authentication succeeded.
"""
tries = 0
while True:
# Password authentication required for this session?
sys.stdout.write('\033[2J\033[0;0H') # Clear screen
sys.stdout.write(colored('Please authenticate\r\n\r\n', 'cyan'))
if tries:
sys.stdout.write(
colored(' Authentication failed, try again\r\n', 'red'))
try:
console = Console(pty)
username = console.input('Username', False)
password = console.input('Password', True)
except NoInput:
raise NotAuthenticated
if auth_backend.authenticate(username, password):
sys.stdout.write(
colored(' ' * 40 + 'Authentication successful\r\n\r\n',
'green'))
return username
else:
tries += 1
if tries == 3:
raise NotAuthenticated
