1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
# Redmine - project management software
# Copyright (C) 2006-2017 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
class Token < ActiveRecord::Base
belongs_to :user
validates_uniqueness_of :value
attr_protected :id
before_create :delete_previous_tokens, :generate_new_token
cattr_accessor :validity_time
self.validity_time = 1.day
class << self
attr_reader :actions
def add_action(name, options)
options.assert_valid_keys(:max_instances, :validity_time)
@actions ||= {}
@actions[name.to_s] = options
end
end
add_action :api, max_instances: 1, validity_time: nil
add_action :autologin, max_instances: 10, validity_time: Proc.new { Setting.autologin.to_i.days }
add_action :feeds, max_instances: 1, validity_time: nil
add_action :recovery, max_instances: 1, validity_time: Proc.new { Token.validity_time }
add_action :register, max_instances: 1, validity_time: Proc.new { Token.validity_time }
add_action :session, max_instances: 10, validity_time: nil
def generate_new_token
self.value = Token.generate_token_value
end
# Return true if token has expired
def expired?
validity_time = self.class.invalid_when_created_before(action)
validity_time.present? && created_on < validity_time
end
def max_instances
Token.actions.has_key?(action) ? Token.actions[action][:max_instances] : 1
end
def self.invalid_when_created_before(action = nil)
if Token.actions.has_key?(action)
validity_time = Token.actions[action][:validity_time]
validity_time = validity_time.call(action) if validity_time.respond_to? :call
else
validity_time = self.validity_time
end
if validity_time
Time.now - validity_time
end
end
# Delete all expired tokens
def self.destroy_expired
t = Token.arel_table
# Unknown actions have default validity_time
condition = t[:action].not_in(self.actions.keys).and(t[:created_on].lt(invalid_when_created_before))
self.actions.each do |action, options|
validity_time = invalid_when_created_before(action)
# Do not delete tokens, which don't become invalid
next if validity_time.nil?
condition = condition.or(
t[:action].eq(action).and(t[:created_on].lt(validity_time))
)
end
Token.where(condition).delete_all
end
# Returns the active user who owns the key for the given action
def self.find_active_user(action, key, validity_days=nil)
user = find_user(action, key, validity_days)
if user && user.active?
user
end
end
# Returns the user who owns the key for the given action
def self.find_user(action, key, validity_days=nil)
token = find_token(action, key, validity_days)
if token
token.user
end
end
# Returns the token for action and key with an optional
# validity duration (in number of days)
def self.find_token(action, key, validity_days=nil)
action = action.to_s
key = key.to_s
return nil unless action.present? && key =~ /\A[a-z0-9]+\z/i
token = Token.where(:action => action, :value => key).first
if token && (token.action == action) && (token.value == key) && token.user
if validity_days.nil? || (token.created_on > validity_days.days.ago)
token
end
end
end
def self.generate_token_value
Redmine::Utils.random_hex(20)
end
private
# Removes obsolete tokens (same user and action)
def delete_previous_tokens
if user
scope = Token.where(:user_id => user.id, :action => action)
if max_instances > 1
ids = scope.order(:updated_on => :desc).offset(max_instances - 1).ids
if ids.any?
Token.delete(ids)
end
else
scope.delete_all
end
end
end
end
|
