Changeset - ab0e122b38a7
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Marcin Kuzminski - 14 years ago 2012-02-19 19:21:14
marcin@python-works.com
backported to stable #355 LDAP passwords stored
1 file changed with 11 insertions and 4 deletions:
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rhodecode/lib/auth.py
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@@ -31,98 +31,100 @@ from tempfile import _RandomNameSequence
 
from decorator import decorator
 

	
 
from pylons import config, session, url, request
 
from pylons.controllers.util import abort, redirect
 
from pylons.i18n.translation import _
 

	
 
from rhodecode import __platform__, PLATFORM_WIN, PLATFORM_OTHERS
 

	
 
if __platform__ in PLATFORM_WIN:
 
    from hashlib import sha256
 
if __platform__ in PLATFORM_OTHERS:
 
    import bcrypt
 

	
 
from rhodecode.lib import str2bool, safe_unicode
 
from rhodecode.lib.exceptions import LdapPasswordError, LdapUsernameError
 
from rhodecode.lib.utils import get_repo_slug
 
from rhodecode.lib.auth_ldap import AuthLdap
 

	
 
from rhodecode.model import meta
 
from rhodecode.model.user import UserModel
 
from rhodecode.model.db import Permission, RhodeCodeSettings, User
 

	
 
log = logging.getLogger(__name__)
 

	
 

	
 
class PasswordGenerator(object):
 
    """This is a simple class for generating password from
 
        different sets of characters
 
        usage:
 
        passwd_gen = PasswordGenerator()
 
        #print 8-letter password containing only big and small letters
 
            of alphabet
 
        print passwd_gen.gen_password(8, passwd_gen.ALPHABETS_BIG_SMALL)
 
    """
 
    ALPHABETS_NUM = r'''1234567890'''
 
    ALPHABETS_SMALL = r'''qwertyuiopasdfghjklzxcvbnm'''
 
    ALPHABETS_BIG = r'''QWERTYUIOPASDFGHJKLZXCVBNM'''
 
    ALPHABETS_SPECIAL = r'''`-=[]\;',./~!@#$%^&*()_+{}|:"<>?'''
 
    ALPHABETS_FULL = ALPHABETS_BIG + ALPHABETS_SMALL \
 
        + ALPHABETS_NUM + ALPHABETS_SPECIAL
 
    ALPHABETS_ALPHANUM = ALPHABETS_BIG + ALPHABETS_SMALL + ALPHABETS_NUM
 
    ALPHABETS_BIG_SMALL = ALPHABETS_BIG + ALPHABETS_SMALL
 
    ALPHABETS_ALPHANUM_BIG = ALPHABETS_BIG + ALPHABETS_NUM
 
    ALPHABETS_ALPHANUM_SMALL = ALPHABETS_SMALL + ALPHABETS_NUM
 

	
 
    def __init__(self, passwd=''):
 
        self.passwd = passwd
 

	
 
    def gen_password(self, len, type):
 
        self.passwd = ''.join([random.choice(type) for _ in xrange(len)])
 
    def gen_password(self, length, type_=None):
 
        if type_ is None:
 
            type_ = self.ALPHABETS_FULL
 
        self.passwd = ''.join([random.choice(type_) for _ in xrange(length)])
 
        return self.passwd
 

	
 

	
 
class RhodeCodeCrypto(object):
 

	
 
    @classmethod
 
    def hash_string(cls, str_):
 
        """
 
        Cryptographic function used for password hashing based on pybcrypt
 
        or pycrypto in windows
 

	
 
        :param password: password to hash
 
        """
 
        if __platform__ in PLATFORM_WIN:
 
            return sha256(str_).hexdigest()
 
        elif __platform__ in PLATFORM_OTHERS:
 
            return bcrypt.hashpw(str_, bcrypt.gensalt(10))
 
        else:
 
            raise Exception('Unknown or unsupported platform %s' \
 
                            % __platform__)
 

	
 
    @classmethod
 
    def hash_check(cls, password, hashed):
 
        """
 
        Checks matching password with it's hashed value, runs different
 
        implementation based on platform it runs on
 

	
 
        :param password: password
 
        :param hashed: password in hashed form
 
        """
 

	
 
        if __platform__ in PLATFORM_WIN:
 
            return sha256(password).hexdigest() == hashed
 
        elif __platform__ in PLATFORM_OTHERS:
 
            return bcrypt.hashpw(password, hashed) == hashed
 
        else:
 
            raise Exception('Unknown or unsupported platform %s' \
 
                            % __platform__)
 

	
 

	
 
def get_crypt_password(password):
 
    return RhodeCodeCrypto.hash_string(password)
 

	
 

	
 
def check_password(password, hashed):
 
    return RhodeCodeCrypto.hash_check(password, hashed)
 

	
 

	
 
@@ -166,99 +168,104 @@ def authenticate(username, password):
 
                log.info('user %s authenticated correctly', username)
 
                return True
 
        else:
 
            log.warning('user %s is disabled', username)
 

	
 
    else:
 
        log.debug('Regular authentication failed')
 
        user_obj = User.get_by_username(username, case_insensitive=True)
 

	
 
        if user_obj is not None and not user_obj.ldap_dn:
 
            log.debug('this user already exists as non ldap')
 
            return False
 

	
 
        ldap_settings = RhodeCodeSettings.get_ldap_settings()
 
        #======================================================================
 
        # FALLBACK TO LDAP AUTH IF ENABLE
 
        #======================================================================
 
        if str2bool(ldap_settings.get('ldap_active')):
 
            log.debug("Authenticating user using ldap")
 
            kwargs = {
 
                  'server': ldap_settings.get('ldap_host', ''),
 
                  'base_dn': ldap_settings.get('ldap_base_dn', ''),
 
                  'port': ldap_settings.get('ldap_port'),
 
                  'bind_dn': ldap_settings.get('ldap_dn_user'),
 
                  'bind_pass': ldap_settings.get('ldap_dn_pass'),
 
                  'tls_kind': ldap_settings.get('ldap_tls_kind'),
 
                  'tls_reqcert': ldap_settings.get('ldap_tls_reqcert'),
 
                  'ldap_filter': ldap_settings.get('ldap_filter'),
 
                  'search_scope': ldap_settings.get('ldap_search_scope'),
 
                  'attr_login': ldap_settings.get('ldap_attr_login'),
 
                  'ldap_version': 3,
 
                  }
 
            log.debug('Checking for ldap authentication')
 
            try:
 
                aldap = AuthLdap(**kwargs)
 
                (user_dn, ldap_attrs) = aldap.authenticate_ldap(username,
 
                                                                password)
 
                log.debug('Got ldap DN response %s', user_dn)
 

	
 
                get_ldap_attr = lambda k: ldap_attrs.get(ldap_settings\
 
                                                           .get(k), [''])[0]
 

	
 
                user_attrs = {
 
                 'name': safe_unicode(get_ldap_attr('ldap_attr_firstname')),
 
                 'lastname': safe_unicode(get_ldap_attr('ldap_attr_lastname')),
 
                 'email': get_ldap_attr('ldap_attr_email'),
 
                }
 

	
 
                if user_model.create_ldap(username, password, user_dn,
 
                # don't store LDAP password since we don't need it. Override
 
                # with some random generated password
 
                _password = PasswordGenerator().gen_password(length=8)
 
                # create this user on the fly if it doesn't exist in rhodecode
 
                # database
 
                if user_model.create_ldap(username, _password, user_dn,
 
                                          user_attrs):
 
                    log.info('created new ldap user %s', username)
 
                    log.info('created new ldap user %s' % username)
 

	
 
                return True
 
            except (LdapUsernameError, LdapPasswordError,):
 
                pass
 
            except (Exception,):
 
                log.error(traceback.format_exc())
 
                pass
 
    return False
 

	
 

	
 
class  AuthUser(object):
 
    """
 
    A simple object that handles all attributes of user in RhodeCode
 

	
 
    It does lookup based on API key,given user, or user present in session
 
    Then it fills all required information for such user. It also checks if
 
    anonymous access is enabled and if so, it returns default user as logged
 
    in
 
    """
 

	
 
    def __init__(self, user_id=None, api_key=None):
 

	
 
        self.user_id = user_id
 
        self.api_key = None
 

	
 
        self.username = 'None'
 
        self.name = ''
 
        self.lastname = ''
 
        self.email = ''
 
        self.is_authenticated = False
 
        self.admin = False
 
        self.permissions = {}
 
        self._api_key = api_key
 
        self.propagate_data()
 

	
 
    def propagate_data(self):
 
        user_model = UserModel()
 
        self.anonymous_user = User.get_by_username('default')
 
        if self._api_key and self._api_key != self.anonymous_user.api_key:
 
            #try go get user by api key
 
            log.debug('Auth User lookup by API KEY %s', self._api_key)
 
            user_model.fill_data(self, api_key=self._api_key)
 
        else:
 
            log.debug('Auth User lookup by USER ID %s', self.user_id)
 
            if self.user_id is not None \
 
                and self.user_id != self.anonymous_user.user_id:
 
                user_model.fill_data(self, user_id=self.user_id)
 
            else:
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