class UNIXChecker: (source)
Implements interfaces: twisted.cred.checkers.ICredentialsChecker
A credentials checker for a UNIX server. This will check that an authenticating username/password is a valid user on the system.
Does not work on Windows.
Right now this supports Python's pwd and spwd modules, if they are installed. It does not support PAM.
| Method | checkPwd | 
    Obtain the encrypted password for username from the Unix password database using pwd.getpwnam, and see if it it matches it matches password. | 
  
| Method | checkSpwd | 
    Obtain the encrypted password for username from the Unix shadow password database using spwd.getspnam, and see if it it matches it matches password. | 
  
| Method | requestAvatarId | 
    Validate credentials and produce an avatar ID. | 
| Class Variable | credentialInterfaces | 
    A list of sub-interfaces of ICredentials which specifies which I may check. | 
  
pwd.getpwnam, and see if it it matches it matches password.| Parameters | |
| pwd:module | Module which provides functions which access to the Unix password database. | 
username:unicode/str or bytes | The user to look up in the Unix password database. | 
| password | The password to compare. | 
spwd.getspnam, and see if it it matches it matches password.| Parameters | |
| spwd:module | Module which provides functions which access to the Unix shadow password database. | 
username:unicode/str or bytes | The user to look up in the Unix password database. | 
| password | The password to compare. | 
| Parameters | |
| credentials | something which implements one of the interfaces in credentialInterfaces. | 
| Returns | |
a Deferred which will fire with a bytes that identifies an avatar, an empty tuple to specify an authenticated anonymous user (provided as twisted.cred.checkers.ANONYMOUS) or fail with UnauthorizedLogin. Alternatively, return the result itself. | |
| See Also | |
twisted.cred.credentials | |
ICredentials which specifies which I may check.