/usr/lib/ruby/vendor_ruby/action_controller/session/abstract_store.rb is in ruby-actionpack-2.3 2.3.14-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 | require 'rack/utils'
module ActionController
module Session
class AbstractStore
ENV_SESSION_KEY = 'rack.session'.freeze
ENV_SESSION_OPTIONS_KEY = 'rack.session.options'.freeze
HTTP_COOKIE = 'HTTP_COOKIE'.freeze
SET_COOKIE = 'Set-Cookie'.freeze
# thin wrapper around Hash that allows us to lazily
# load session id into session_options
class OptionsHash < Hash
def initialize(by, env, default_options)
@by = by
@env = env
@session_id_loaded = false
merge!(default_options)
end
def [](key)
if key == :id
load_session_id! unless super(:id) || has_session_id?
end
super(key)
end
private
def has_session_id?
@session_id_loaded
end
def load_session_id!
self[:id] = @by.send(:extract_session_id, @env)
@session_id_loaded = true
end
end
class SessionHash < Hash
def initialize(by, env)
super()
@by = by
@env = env
@loaded = false
end
def session_id
ActiveSupport::Deprecation.warn(
"ActionController::Session::AbstractStore::SessionHash#session_id " +
"has been deprecated. Please use request.session_options[:id] instead.", caller)
@env[ENV_SESSION_OPTIONS_KEY][:id]
end
def [](key)
load_for_read!
super
end
def has_key?(key)
load_for_read!
super
end
def []=(key, value)
load_for_write!
super
end
def clear
load_for_write!
super
end
def to_hash
load_for_read!
h = {}.replace(self)
h.delete_if { |k,v| v.nil? }
h
end
def update(hash)
load_for_write!
super
end
def delete(key)
load_for_write!
super
end
def data
ActiveSupport::Deprecation.warn(
"ActionController::Session::AbstractStore::SessionHash#data " +
"has been deprecated. Please use #to_hash instead.", caller)
to_hash
end
def inspect
load_for_read!
super
end
def exists?
return @exists if instance_variable_defined?(:@exists)
@exists = @by.send(:exists?, @env)
end
def loaded?
@loaded
end
def destroy
clear
@by.send(:destroy, @env) if @by
@env[ENV_SESSION_OPTIONS_KEY][:id] = nil if @env && @env[ENV_SESSION_OPTIONS_KEY]
@loaded = false
end
private
def load_for_read!
load! if !loaded? && exists?
end
def load_for_write!
load! unless loaded?
end
def load!
id, session = @by.send(:load_session, @env)
@env[ENV_SESSION_OPTIONS_KEY][:id] = id
replace(session)
@loaded = true
end
end
DEFAULT_OPTIONS = {
:key => '_session_id',
:path => '/',
:domain => nil,
:expire_after => nil,
:secure => false,
:httponly => true,
:cookie_only => true
}
def initialize(app, options = {})
# Process legacy CGI options
options = options.symbolize_keys
if options.has_key?(:session_path)
ActiveSupport::Deprecation.warn "Giving :session_path to SessionStore is deprecated, " <<
"please use :path instead", caller
options[:path] = options.delete(:session_path)
end
if options.has_key?(:session_key)
ActiveSupport::Deprecation.warn "Giving :session_key to SessionStore is deprecated, " <<
"please use :key instead", caller
options[:key] = options.delete(:session_key)
end
if options.has_key?(:session_http_only)
ActiveSupport::Deprecation.warn "Giving :session_http_only to SessionStore is deprecated, " <<
"please use :httponly instead", caller
options[:httponly] = options.delete(:session_http_only)
end
@app = app
@default_options = DEFAULT_OPTIONS.merge(options)
@key = @default_options[:key]
@cookie_only = @default_options[:cookie_only]
end
def call(env)
prepare!(env)
response = @app.call(env)
session_data = env[ENV_SESSION_KEY]
options = env[ENV_SESSION_OPTIONS_KEY]
if !session_data.is_a?(AbstractStore::SessionHash) || session_data.loaded? || options[:expire_after]
request = ActionController::Request.new(env)
return response if (options[:secure] && !request.ssl?)
session_data.send(:load!) if session_data.is_a?(AbstractStore::SessionHash) && !session_data.loaded?
sid = options[:id] || generate_sid
unless set_session(env, sid, session_data.to_hash)
return response
end
request_cookies = env["rack.request.cookie_hash"]
if (request_cookies.nil? || request_cookies[@key] != sid) || options[:expire_after]
cookie = {:value => sid}
cookie[:expires] = Time.now + options[:expire_after] if options[:expire_after]
Rack::Utils.set_cookie_header!(response[1], @key, cookie.merge(options))
end
end
response
end
private
def prepare!(env)
env[ENV_SESSION_KEY] = SessionHash.new(self, env)
env[ENV_SESSION_OPTIONS_KEY] = OptionsHash.new(self, env, @default_options)
end
def generate_sid
ActiveSupport::SecureRandom.hex(16)
end
def load_session(env)
stale_session_check! do
sid = current_session_id(env)
sid, session = get_session(env, sid)
[sid, session]
end
end
def extract_session_id(env)
stale_session_check! do
request = Rack::Request.new(env)
sid = request.cookies[@key]
sid ||= request.params[@key] unless @cookie_only
sid
end
end
def current_session_id(env)
env[ENV_SESSION_OPTIONS_KEY][:id]
end
def exists?(env)
current_session_id(env).present?
end
def get_session(env, sid)
raise '#get_session needs to be implemented.'
end
def set_session(env, sid, session_data)
raise '#set_session needs to be implemented.'
end
def destroy(env)
raise '#destroy needs to be implemented.'
end
module SessionUtils
private
def stale_session_check!
yield
rescue ArgumentError => argument_error
if argument_error.message =~ %r{undefined class/module ([\w:]*\w)}
begin
# Note that the regexp does not allow $1 to end with a ':'
$1.constantize
rescue LoadError, NameError => const_error
raise ActionController::SessionRestoreError, "Session contains objects whose class definition isn\\'t available.\nRemember to require the classes for all objects kept in the session.\n(Original exception: \#{const_error.message} [\#{const_error.class}])\n"
end
retry
else
raise
end
end
end
include SessionUtils
end
end
end
|