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
145
146
147
148
149
150
151
152
153
154
155
|
module ActionController #:nodoc:
module SessionManagement #:nodoc:
def self.included(base)
base.class_eval do
extend ClassMethods
alias_method_chain :process, :session_management_support
alias_method_chain :process_cleanup, :session_management_support
end
end
module ClassMethods
# Set the session store to be used for keeping the session data between requests.
# By default, sessions are stored in browser cookies (<tt>:cookie_store</tt>),
# but you can also specify one of the other included stores (<tt>:active_record_store</tt>,
# <tt>:p_store</tt>, <tt>:drb_store</tt>, <tt>:mem_cache_store</tt>, or
# <tt>:memory_store</tt>) or your own custom class.
def session_store=(store)
ActionController::CgiRequest::DEFAULT_SESSION_OPTIONS[:database_manager] =
store.is_a?(Symbol) ? CGI::Session.const_get(store == :drb_store ? "DRbStore" : store.to_s.camelize) : store
end
# Returns the session store class currently used.
def session_store
ActionController::CgiRequest::DEFAULT_SESSION_OPTIONS[:database_manager]
end
# Returns the hash used to configure the session. Example use:
#
# ActionController::Base.session_options[:session_secure] = true # session only available over HTTPS
def session_options
ActionController::CgiRequest::DEFAULT_SESSION_OPTIONS
end
# Specify how sessions ought to be managed for a subset of the actions on
# the controller. Like filters, you can specify <tt>:only</tt> and
# <tt>:except</tt> clauses to restrict the subset, otherwise options
# apply to all actions on this controller.
#
# The session options are inheritable, as well, so if you specify them in
# a parent controller, they apply to controllers that extend the parent.
#
# Usage:
#
# # turn off session management for all actions.
# session :off
#
# # turn off session management for all actions _except_ foo and bar.
# session :off, :except => %w(foo bar)
#
# # turn off session management for only the foo and bar actions.
# session :off, :only => %w(foo bar)
#
# # the session will only work over HTTPS, but only for the foo action
# session :only => :foo, :session_secure => true
#
# # the session by default uses HttpOnly sessions for security reasons.
# # this can be switched off.
# session :only => :foo, :session_http_only => false
#
# # the session will only be disabled for 'foo', and only if it is
# # requested as a web service
# session :off, :only => :foo,
# :if => Proc.new { |req| req.parameters[:ws] }
#
# # the session will be disabled for non html/ajax requests
# session :off,
# :if => Proc.new { |req| !(req.format.html? || req.format.js?) }
#
# # turn the session back on, useful when it was turned off in the
# # application controller, and you need it on in another controller
# session :on
#
# All session options described for ActionController::Base.process_cgi
# are valid arguments.
def session(*args)
options = args.extract_options!
options[:disabled] = false if args.delete(:on)
options[:disabled] = true if !args.empty?
options[:only] = [*options[:only]].map { |o| o.to_s } if options[:only]
options[:except] = [*options[:except]].map { |o| o.to_s } if options[:except]
if options[:only] && options[:except]
raise ArgumentError, "only one of either :only or :except are allowed"
end
write_inheritable_array(:session_options, [options])
end
# So we can declare session options in the Rails initializer.
alias_method :session=, :session
def cached_session_options #:nodoc:
@session_options ||= read_inheritable_attribute(:session_options) || []
end
def session_options_for(request, action) #:nodoc:
if (session_options = cached_session_options).empty?
{}
else
options = {}
action = action.to_s
session_options.each do |opts|
next if opts[:if] && !opts[:if].call(request)
if opts[:only] && opts[:only].include?(action)
options.merge!(opts)
elsif opts[:except] && !opts[:except].include?(action)
options.merge!(opts)
elsif !opts[:only] && !opts[:except]
options.merge!(opts)
end
end
if options.empty? then options
else
options.delete :only
options.delete :except
options.delete :if
options[:disabled] ? false : options
end
end
end
end
def process_with_session_management_support(request, response, method = :perform_action, *arguments) #:nodoc:
set_session_options(request)
process_without_session_management_support(request, response, method, *arguments)
end
private
def set_session_options(request)
request.session_options = self.class.session_options_for(request, request.parameters["action"] || "index")
end
def process_cleanup_with_session_management_support
clear_persistent_model_associations
process_cleanup_without_session_management_support
end
# Clear cached associations in session data so they don't overflow
# the database field. Only applies to ActiveRecordStore since there
# is not a standard way to iterate over session data.
def clear_persistent_model_associations #:doc:
if defined?(@_session) && @_session.respond_to?(:data)
session_data = @_session.data
if session_data && session_data.respond_to?(:each_value)
session_data.each_value do |obj|
obj.clear_association_cache if obj.respond_to?(:clear_association_cache)
end
end
end
end
end
end
|
