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