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Refactor: Extract #get_user_dn from AuthSourceLdap....
Eric Davis -
r3340:c6b2f1d606c1
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1 1 # redMine - project management software
2 2 # Copyright (C) 2006 Jean-Philippe Lang
3 3 #
4 4 # This program is free software; you can redistribute it and/or
5 5 # modify it under the terms of the GNU General Public License
6 6 # as published by the Free Software Foundation; either version 2
7 7 # of the License, or (at your option) any later version.
8 8 #
9 9 # This program is distributed in the hope that it will be useful,
10 10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 12 # GNU General Public License for more details.
13 13 #
14 14 # You should have received a copy of the GNU General Public License
15 15 # along with this program; if not, write to the Free Software
16 16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 17
18 18 require 'net/ldap'
19 19 require 'iconv'
20 20
21 21 class AuthSourceLdap < AuthSource
22 22 validates_presence_of :host, :port, :attr_login
23 23 validates_length_of :name, :host, :account_password, :maximum => 60, :allow_nil => true
24 24 validates_length_of :account, :base_dn, :maximum => 255, :allow_nil => true
25 25 validates_length_of :attr_login, :attr_firstname, :attr_lastname, :attr_mail, :maximum => 30, :allow_nil => true
26 26 validates_numericality_of :port, :only_integer => true
27 27
28 28 before_validation :strip_ldap_attributes
29 29
30 30 def after_initialize
31 31 self.port = 389 if self.port == 0
32 32 end
33 33
34 34 def authenticate(login, password)
35 35 return nil if login.blank? || password.blank?
36 attrs = []
37 # get user's DN
38 ldap_con = initialize_ldap_con(self.account, self.account_password)
39 login_filter = Net::LDAP::Filter.eq( self.attr_login, login )
40 object_filter = Net::LDAP::Filter.eq( "objectClass", "*" )
41 dn = String.new
42 ldap_con.search( :base => self.base_dn,
43 :filter => object_filter & login_filter,
44 :attributes=> search_attributes) do |entry|
45 dn = entry.dn
46 attrs = get_user_attributes_from_ldap_entry(entry) if onthefly_register?
47 logger.debug "DN found for #{login}: #{dn}" if logger && logger.debug?
48
49 end
50
51 if authenticate_dn(dn, password)
36 attrs = get_user_dn(login)
37
38 if attrs.first && attrs.first[:dn] && authenticate_dn(attrs.first[:dn], password)
52 39 logger.debug "Authentication successful for '#{login}'" if logger && logger.debug?
53 40 return attrs
54 41 end
55 42 rescue Net::LDAP::LdapError => text
56 43 raise "LdapError: " + text
57 44 end
58 45
59 46 # test the connection to the LDAP
60 47 def test_connection
61 48 ldap_con = initialize_ldap_con(self.account, self.account_password)
62 49 ldap_con.open { }
63 50 rescue Net::LDAP::LdapError => text
64 51 raise "LdapError: " + text
65 52 end
66 53
67 54 def auth_method_name
68 55 "LDAP"
69 56 end
70 57
71 58 private
72 59
73 60 def strip_ldap_attributes
74 61 [:attr_login, :attr_firstname, :attr_lastname, :attr_mail].each do |attr|
75 62 write_attribute(attr, read_attribute(attr).strip) unless read_attribute(attr).nil?
76 63 end
77 64 end
78 65
79 66 def initialize_ldap_con(ldap_user, ldap_password)
80 67 options = { :host => self.host,
81 68 :port => self.port,
82 69 :encryption => (self.tls ? :simple_tls : nil)
83 70 }
84 71 options.merge!(:auth => { :method => :simple, :username => ldap_user, :password => ldap_password }) unless ldap_user.blank? && ldap_password.blank?
85 72 Net::LDAP.new options
86 73 end
87 74
88 75 def get_user_attributes_from_ldap_entry(entry)
89 76 [
77 :dn => entry.dn,
90 78 :firstname => AuthSourceLdap.get_attr(entry, self.attr_firstname),
91 79 :lastname => AuthSourceLdap.get_attr(entry, self.attr_lastname),
92 80 :mail => AuthSourceLdap.get_attr(entry, self.attr_mail),
93 81 :auth_source_id => self.id
94 82 ]
95 83 end
96 84
97 85 # Return the attributes needed for the LDAP search. It will only
98 86 # include the user attributes if on-the-fly registration is enabled
99 87 def search_attributes
100 88 if onthefly_register?
101 89 ['dn', self.attr_firstname, self.attr_lastname, self.attr_mail]
102 90 else
103 91 ['dn']
104 92 end
105 93 end
106 94
107 95 # Check if a DN (user record) authenticates with the password
108 96 def authenticate_dn(dn, password)
109 97 if dn.present? && password.present?
110 98 initialize_ldap_con(dn, password).bind
111 99 end
112 100 end
101
102 # Get the user's dn and any attributes for them, given their login
103 def get_user_dn(login)
104 ldap_con = initialize_ldap_con(self.account, self.account_password)
105 login_filter = Net::LDAP::Filter.eq( self.attr_login, login )
106 object_filter = Net::LDAP::Filter.eq( "objectClass", "*" )
107 attrs = []
108
109 ldap_con.search( :base => self.base_dn,
110 :filter => object_filter & login_filter,
111 :attributes=> search_attributes) do |entry|
112
113 if onthefly_register?
114 attrs = get_user_attributes_from_ldap_entry(entry)
115 else
116 attrs = [:dn => entry.dn]
117 end
118
119 logger.debug "DN found for #{login}: #{attrs.first[:dn]}" if logger && logger.debug?
120 end
121
122 attrs
123 end
113 124
114 125 def self.get_attr(entry, attr_name)
115 126 if !attr_name.blank?
116 127 entry[attr_name].is_a?(Array) ? entry[attr_name].first : entry[attr_name]
117 128 end
118 129 end
119 130 end
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