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- # Source Generated with Decompyle++
- # File: in.pyc (Python 2.6)
-
- '''Utilities to get a password and/or the current user name.
-
- getpass(prompt[, stream]) - Prompt for a password, with echo turned off.
- getuser() - Get the user name from the environment or password database.
-
- GetPassWarning - This UserWarning is issued when getpass() cannot prevent
- echoing of the password contents while reading.
-
- On Windows, the msvcrt module will be used.
- On the Mac EasyDialogs.AskPassword is used, if available.
-
- '''
- import os
- import sys
- import warnings
- __all__ = [
- 'getpass',
- 'getuser',
- 'GetPassWarning']
-
- class GetPassWarning(UserWarning):
- pass
-
-
- def unix_getpass(prompt = 'Password: ', stream = None):
- """Prompt for a password, with echo turned off.
-
- Args:
- prompt: Written on stream to ask for the input. Default: 'Password: '
- stream: A writable file object to display the prompt. Defaults to
- the tty. If no tty is available defaults to sys.stderr.
- Returns:
- The seKr3t input.
- Raises:
- EOFError: If our input tty or stdin was closed.
- GetPassWarning: When we were unable to turn echo off on the input.
-
- Always restores terminal settings before returning.
- """
- fd = None
- tty = None
-
- try:
- fd = os.open('/dev/tty', os.O_RDWR | os.O_NOCTTY)
- tty = os.fdopen(fd, 'w+', 1)
- input = tty
- if not stream:
- stream = tty
- except EnvironmentError:
- e = None
-
- try:
- fd = sys.stdin.fileno()
- except:
- passwd = fallback_getpass(prompt, stream)
-
- input = sys.stdin
- if not stream:
- stream = sys.stderr
-
- except:
- stream
-
- if fd is not None:
- passwd = None
-
- try:
- old = termios.tcgetattr(fd)
- new = old[:]
- new[3] &= ~(termios.ECHO)
-
- try:
- termios.tcsetattr(fd, termios.TCSADRAIN, new)
- passwd = _raw_input(prompt, stream, input = input)
- finally:
- termios.tcsetattr(fd, termios.TCSADRAIN, old)
-
- except termios.error:
- e = None
- if passwd is not None:
- raise
- passwd is not None
- del input
- del tty
- passwd = fallback_getpass(prompt, stream)
- except:
- None<EXCEPTION MATCH>termios.error
-
-
- None<EXCEPTION MATCH>termios.error
- stream.write('\n')
- return passwd
-
-
- def win_getpass(prompt = 'Password: ', stream = None):
- '''Prompt for password with echo off, using Windows getch().'''
- if sys.stdin is not sys.__stdin__:
- return fallback_getpass(prompt, stream)
- import msvcrt
- for c in prompt:
- msvcrt.putch(c)
-
- pw = ''
- while None:
- c = msvcrt.getch()
- if c == '\r' or c == '\n':
- break
-
- if c == '\x03':
- raise KeyboardInterrupt
- if c == '\x08':
- pw = pw[:-1]
- continue
- pw = pw + c
- continue
- msvcrt.putch('\r')
- msvcrt.putch('\n')
- return pw
-
-
- def fallback_getpass(prompt = 'Password: ', stream = None):
- warnings.warn('Can not control echo on the terminal.', GetPassWarning, stacklevel = 2)
- if not stream:
- stream = sys.stderr
-
- print >>stream, 'Warning: Password input may be echoed.'
- return _raw_input(prompt, stream)
-
-
- def _raw_input(prompt = '', stream = None, input = None):
- if not stream:
- stream = sys.stderr
-
- if not input:
- input = sys.stdin
-
- prompt = str(prompt)
- if prompt:
- stream.write(prompt)
- stream.flush()
-
- line = input.readline()
- if not line:
- raise EOFError
- line
- if line[-1] == '\n':
- line = line[:-1]
-
- return line
-
-
- def getuser():
- '''Get the username from the environment or password database.
-
- First try various environment variables, then the password
- database. This works on Windows as long as USERNAME is set.
-
- '''
- import os
- for name in ('LOGNAME', 'USER', 'LNAME', 'USERNAME'):
- user = os.environ.get(name)
- if user:
- return user
-
- import pwd
- return pwd.getpwuid(os.getuid())[0]
-
-
- try:
- import termios
- (termios.tcgetattr, termios.tcsetattr)
- except (ImportError, AttributeError):
-
- try:
- import msvcrt
- except ImportError:
-
- try:
- from EasyDialogs import AskPassword
- except ImportError:
- getpass = fallback_getpass
-
- getpass = AskPassword
-
- getpass = win_getpass
-
- getpass = unix_getpass
-