Package flumotion :: Package component :: Package bouncers :: Module saltsha256
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Source Code for Module flumotion.component.bouncers.saltsha256

 1  # -*- Mode: Python; test-case-name: flumotion.test.test_saltsha256 -*- 
 2  # vi:si:et:sw=4:sts=4:ts=4 
 3  # 
 4  # Flumotion - a streaming media server 
 5  # Copyright (C) 2004,2005,2006,2007 Fluendo, S.L. (www.fluendo.com). 
 6  # All rights reserved. 
 7   
 8  # This file may be distributed and/or modified under the terms of 
 9  # the GNU General Public License version 2 as published by 
10  # the Free Software Foundation. 
11  # This file is distributed without any warranty; without even the implied 
12  # warranty of merchantability or fitness for a particular purpose. 
13  # See "LICENSE.GPL" in the source distribution for more information. 
14   
15  # Licensees having purchased or holding a valid Flumotion Advanced 
16  # Streaming Server license may use this file in accordance with the 
17  # Flumotion Advanced Streaming Server Commercial License Agreement. 
18  # See "LICENSE.Flumotion" in the source distribution for more information. 
19   
20  # Headers in this file shall remain intact. 
21   
22  """ 
23  an bouncer with a username/salt/sha256 data backend 
24  """ 
25   
26  import md5 
27  import random 
28   
29  from twisted.python import components 
30  from twisted.internet import defer 
31   
32  from flumotion.common import interfaces, keycards, log, errors 
33  from flumotion.component import component 
34  from flumotion.component.bouncers import bouncer 
35  from flumotion.twisted import credentials, checkers 
36   
37  __all__ = ['SaltSha256'] 
38  __version__ = "$Rev: 6638 $" 
39   
40   
41 -class SaltSha256(bouncer.ChallengeResponseBouncer):
42 """ 43 I am a bouncer that stores usernames, salts, and SHA-256 data 44 to authenticate against. 45 """ 46 47 logCategory = 'passwdsaltsha256' 48 keycardClasses = (keycards.KeycardUASPCC,) 49 challengeResponseClasses = (keycards.KeycardUASPCC,) 50 51
52 - def do_setup(self):
53 conf = self.config 54 55 # we need either a filename or data 56 props = conf['properties'] 57 filename = data = None 58 if props.has_key('filename'): 59 filename = props['filename'] 60 self.debug('using file %s for passwords', filename) 61 elif props.has_key('data'): 62 data = props['data'] 63 self.debug('using in-line data for passwords') 64 else: 65 return defer.fail(errors.ConfigError( 66 'PasswdSaltSha256 needs either a <data> or <filename> entry')) 67 # FIXME: generalize to a start method, possibly linked to mood 68 if filename: 69 try: 70 lines = open(filename).readlines() 71 except IOError, e: 72 return defer.fail(errors.ConfigError(str(e))) 73 else: 74 lines = data.split("\n") 75 76 self.setChecker(checkers.Sha256Checker()) 77 78 for line in lines: 79 if not ':' in line: continue 80 # when coming from a file, it ends in \n, so strip. 81 # for data, we already splitted, so no \n, but strip is fine. 82 name, salt, sha256Data = line.strip().split(':') 83 self.addUser(name, salt, salt, sha256Data) 84 85 self.debug('parsed %s, %d lines' % (filename or '<memory>', 86 len(lines))) 87 88 return defer.succeed(None)
89