Source Code for Module repoze.who.plugins.htpasswd

 1  from zope.interface import implements 
 2   
 3  from repoze.who.interfaces import IAuthenticator 
 4  from repoze.who.utils import resolveDotted 
 5   
 6 -class HTPasswdPlugin(object): 
 7   
 8      implements(IAuthenticator) 
 9   
10 -    def __init__(self, filename, check): 
11          self.filename = filename 
12          self.check = check 
13   
14      # IAuthenticatorPlugin 
15 -    def authenticate(self, environ, identity): 
16          try: 
17              login = identity['login'] 
18              password = identity['password'] 
19          except KeyError: 
20              return None 
21   
22          if hasattr(self.filename, 'seek'): 
23              # assumed to have a readline 
24              self.filename.seek(0) 
25              f = self.filename 
26          else: 
27              try: 
28                  f = open(self.filename, 'r') 
29              except IOError: 
30                  environ['repoze.who.logger'].warn('could not open htpasswd ' 
31                                                    'file %s' % self.filename) 
32                  return None 
33   
34          for line in f: 
35              try: 
36                  username, hashed = line.rstrip().split(':', 1) 
37              except ValueError: 
38                  continue 
39              if username == login: 
40                  if self.check(password, hashed): 
41                      return username 
42          return None 
43   
44 -    def __repr__(self): 
45          return '<%s %s>' % (self.__class__.__name__, 
46                              id(self)) #pragma NO COVERAGE 
47   
48 -def crypt_check(password, hashed): 
49      from crypt import crypt 
50      salt = hashed[:2] 
51      return hashed == crypt(password, salt) 
52   
53 -def plain_check(password, hashed): 
54      return hashed == password 
55   
56 -def make_plugin(filename=None, check_fn=None): 
57      if filename is None: 
58          raise ValueError('filename must be specified') 
59      if check_fn is None: 
60          raise ValueError('check_fn must be specified') 
61      check = resolveDotted(check_fn) 
62      return HTPasswdPlugin(filename, check) 
63