Class: Authlogic::Session::Base
- Inherits:
-
Object
- Object
- Authlogic::Session::Base
- Includes:
- Authlogic::Session, ActiveRecordTrickery, Callbacks, Config, Cookies, Params, Perishability, Scopes
- Defined in:
- lib/authlogic/session/base.rb,
lib/authlogic.rb
Overview
Base
This is the muscle behind Authlogic. For detailed information on how to use this please refer to the README. For detailed method explanations see below.
Constant Summary
Constants included from Callbacks
Instance Attribute Summary collapse
-
#authenticating_with ⇒ Object
A flag for how the user is logging in.
-
#id ⇒ Object
Allows you to set a unique identifier for your session, so that you can have more than 1 session at a time.
-
#new_session ⇒ Object
Returns the value of attribute new_session.
-
#persisting ⇒ Object
:nodoc:.
-
#record ⇒ Object
readonly
Returns the value of attribute record.
-
#unauthorized_record ⇒ Object
Returns the value of attribute unauthorized_record.
Class Method Summary collapse
-
.activated? ⇒ Boolean
Returns true if a controller have been set and can be used properly.
-
.controller ⇒ Object
:nodoc:.
-
.controller=(value) ⇒ Object
:nodoc:.
-
.create(*args, &block) ⇒ Object
A convenince method.
-
.create!(*args) ⇒ Object
Same as create but calls create!, which raises an exception when authentication fails.
-
.find(id = nil) ⇒ Object
A convenience method for session.find_record.
-
.klass ⇒ Object
The name of the class that this session is authenticating with.
-
.klass_name ⇒ Object
Same as klass, just returns a string instead of the actual constant.
Instance Method Summary collapse
-
#authenticating_with_password? ⇒ Boolean
Returns true if logging in with credentials.
-
#authenticating_with_unauthorized_record? ⇒ Boolean
(also: #authenticating_with_record?)
Returns true if logging in with an unauthorized record.
-
#credentials ⇒ Object
Your login credentials in hash format.
-
#credentials=(values) ⇒ Object
Lets you set your loging and password via a hash format.
-
#destroy ⇒ Object
Resets everything, your errors, record, cookies, and session.
-
#errors ⇒ Object
The errors in Authlogic work JUST LIKE ActiveRecord.
-
#find_record ⇒ Object
Attempts to find the record by params, then session, then cookie, and finally basic http auth.
-
#initialize(*args) ⇒ Base
constructor
You can initialize a session by doing any of the following:.
-
#inspect ⇒ Object
:nodoc:.
-
#new_session? ⇒ Boolean
Similar to ActiveRecord’s new_record? Returns true if the session has not been saved yet.
-
#persisting? ⇒ Boolean
Returns true if the session is being persisted.
-
#remember_me ⇒ Object
:nodoc:.
-
#remember_me=(value) ⇒ Object
Accepts a boolean as a flag to remember the session or not.
-
#remember_me? ⇒ Boolean
Allows users to be remembered via a cookie.
-
#remember_me_until ⇒ Object
When to expire the cookie.
-
#save {|result| ... } ⇒ Object
Creates / updates a new user session for you.
-
#save! ⇒ Object
Same as save but raises an exception when authentication fails.
-
#valid? ⇒ Boolean
Returns if the session is valid or not.
-
#valid_http_auth? ⇒ Boolean
Tries to validate the session from information from a basic http auth, if it was provided.
-
#validate ⇒ Object
Overwite this method to add your own validation, or use callbacks: before_validation, after_validation.
Methods included from Config
Methods included from Scopes
Methods included from Perishability
Methods included from Params
Methods included from Cookies
Methods included from Callbacks
#destroy_with_callbacks, #find_record_with_callbacks, included, #save_with_callbacks, #validate_with_callbacks
Methods included from ActiveRecordTrickery
Constructor Details
#initialize(*args) ⇒ Base
You can initialize a session by doing any of the following:
UserSession.new
UserSession.new(:login => "login", :password => "password", :remember_me => true)
UserSession.new(User.first, true)
If a user has more than one session you need to pass an id so that Authlogic knows how to differentiate the sessions. The id MUST be a Symbol.
UserSession.new(:my_id)
UserSession.new({:login => "login", :password => "password", :remember_me => true}, :my_id)
UserSession.new(User.first, true, :my_id)
For more information on ids see the id method.
Lastly, the reason the id is separate from the first parameter hash is becuase this should be controlled by you, not by what the user passes. A user could inject their own id and things would not work as expected.
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# File 'lib/authlogic/session/base.rb', line 107 def initialize(*args) raise NotActivated.new(self) unless self.class.activated? create_configurable_methods! self.id = args.pop if args.last.is_a?(Symbol) if args.first.is_a?(Hash) self.credentials = args.first elsif !args.first.blank? && args.first.class < ::ActiveRecord::Base self. = args.first self.remember_me = args[1] if args.size > 1 end end |
Instance Attribute Details
#authenticating_with ⇒ Object
A flag for how the user is logging in. Possible values:
-
:password
- username and password -
:unauthorized_record
- an actual ActiveRecord object
By default this is :password
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# File 'lib/authlogic/session/base.rb', line 128 def authenticating_with @authenticating_with ||= :password end |
#id ⇒ Object
Allows you to set a unique identifier for your session, so that you can have more than 1 session at a time. A good example when this might be needed is when you want to have a normal user session and a “secure” user session. The secure user session would be created only when they want to modify their billing information, or other sensitive information. Similar to me.com. This requires 2 user sessions. Just use an id for the “secure” session and you should be good.
You can set the id during initialization (see initialize for more information), or as an attribute:
session.id = :my_id
Just be sure and set your id before you save your session.
Lastly, to retrieve your session with the id check out the find class method.
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# File 'lib/authlogic/session/base.rb', line 216 def id @id end |
#new_session ⇒ Object
Returns the value of attribute new_session.
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# File 'lib/authlogic/session/base.rb', line 87 def new_session @new_session end |
#persisting ⇒ Object
:nodoc:
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# File 'lib/authlogic/session/base.rb', line 237 def persisting # :nodoc: return @persisting if defined?(@persisting) @persisting = true end |
#record ⇒ Object
Returns the value of attribute record.
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# File 'lib/authlogic/session/base.rb', line 88 def record @record end |
#unauthorized_record ⇒ Object
Returns the value of attribute unauthorized_record.
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# File 'lib/authlogic/session/base.rb', line 88 def @unauthorized_record end |
Class Method Details
.activated? ⇒ Boolean
Returns true if a controller have been set and can be used properly. This MUST be set before anything can be done. Similar to how ActiveRecord won’t allow you to do anything without establishing a DB connection. In your framework environment this is done for you, but if you are using Authlogic outside of your frameword, you need to assign a controller object to Authlogic via Authlogic::Session::Base.controller = obj.
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# File 'lib/authlogic/session/base.rb', line 13 def activated? !controller.blank? end |
.controller ⇒ Object
:nodoc:
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# File 'lib/authlogic/session/base.rb', line 21 def controller # :nodoc: Thread.current[:authlogic_controller] end |
.controller=(value) ⇒ Object
:nodoc:
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# File 'lib/authlogic/session/base.rb', line 17 def controller=(value) # :nodoc: Thread.current[:authlogic_controller] = value end |
.create(*args, &block) ⇒ Object
A convenince method. The same as:
session = UserSession.new
session.create
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# File 'lib/authlogic/session/base.rb', line 29 def create(*args, &block) session = new(*args) session.save(&block) end |
.create!(*args) ⇒ Object
Same as create but calls create!, which raises an exception when authentication fails
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# File 'lib/authlogic/session/base.rb', line 35 def create!(*args) session = new(*args) session.save! end |
.find(id = nil) ⇒ Object
A convenience method for session.find_record. Finds your session by parameters, then session, then cookie, and finally by basic http auth. This is perfect for persisting your session:
helper_method :current_user_session, :current_user
def current_user_session
return @current_user_session if defined?(@current_user_session)
@current_user_session = UserSession.find
end
def current_user
return @current_user if defined?(@current_user)
@current_user = current_user_session && current_user_session.user
end
Accepts a single parameter as the id, to find session that you marked with an id:
UserSession.find(:secure)
See the id method for more information on ids.
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# File 'lib/authlogic/session/base.rb', line 60 def find(id = nil) args = [id].compact session = new(*args) return session if session.find_record nil end |
.klass ⇒ Object
The name of the class that this session is authenticating with. For example, the UserSession class will authenticate with the User class unless you specify otherwise in your configuration.
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# File 'lib/authlogic/session/base.rb', line 69 def klass @klass ||= if klass_name klass_name.constantize else nil end end |
.klass_name ⇒ Object
Same as klass, just returns a string instead of the actual constant.
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# File 'lib/authlogic/session/base.rb', line 79 def klass_name @klass_name ||= if guessed_name = name.scan(/(.*)Session/)[0] @klass_name = guessed_name[0] end end |
Instance Method Details
#authenticating_with_password? ⇒ Boolean
Returns true if logging in with credentials. Credentials mean username and password.
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# File 'lib/authlogic/session/base.rb', line 133 def authenticating_with_password? authenticating_with == :password end |
#authenticating_with_unauthorized_record? ⇒ Boolean Also known as: authenticating_with_record?
Returns true if logging in with an unauthorized record
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# File 'lib/authlogic/session/base.rb', line 138 def authenticating_with == :unauthorized_record end |
#credentials ⇒ Object
Your login credentials in hash format. Usually => “my login”, :password => “<protected>” depending on your configuration. Password is protected as a security measure. The raw password should never be publicly accessible.
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# File 'lib/authlogic/session/base.rb', line 145 def credentials {login_field => send(login_field), password_field => "<Protected>"} end |
#credentials=(values) ⇒ Object
Lets you set your loging and password via a hash format. This is “params” safe. It only allows for 3 keys: your login field name, password field name, and remember me.
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# File 'lib/authlogic/session/base.rb', line 150 def credentials=(values) return if values.blank? || !values.is_a?(Hash) values.symbolize_keys! values.each do |field, value| next if value.blank? send("#{field}=", value) end end |
#destroy ⇒ Object
Resets everything, your errors, record, cookies, and session. Basically “logs out” a user.
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# File 'lib/authlogic/session/base.rb', line 160 def destroy errors.clear @record = nil true end |
#errors ⇒ Object
The errors in Authlogic work JUST LIKE ActiveRecord. In fact, it uses the exact same ActiveRecord errors class. Use it the same way:
Example
class UserSession
before_validation :check_if_awesome
private
def check_if_awesome
errors.add(:login, "must contain awesome") if login && !login.include?("awesome")
errors.add_to_base("You must be awesome to log in") unless record.awesome?
end
end
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# File 'lib/authlogic/session/base.rb', line 179 def errors @errors ||= Errors.new(self) end |
#find_record ⇒ Object
Attempts to find the record by params, then session, then cookie, and finally basic http auth. See the class level find method if you are wanting to use this to persist your session.
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# File 'lib/authlogic/session/base.rb', line 184 def find_record if record self.new_session = false return record end find_with.each do |find_method| if send("valid_#{find_method}?") self.new_session = false if record.class.column_names.include?("last_request_at") && (record.last_request_at.blank? || last_request_at_threshold.ago >= record.last_request_at) record.last_request_at = Time.now record.save_without_session_maintenance(false) end return record end end nil end |
#inspect ⇒ Object
:nodoc:
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# File 'lib/authlogic/session/base.rb', line 220 def inspect # :nodoc: details = {} case authenticating_with when :unauthorized_record details[:unauthorized_record] = "<protected>" else details[login_field.to_sym] = send(login_field) details[password_field.to_sym] = "<protected>" end "#<#{self.class.name} #{details.inspect}>" end |
#new_session? ⇒ Boolean
Similar to ActiveRecord’s new_record? Returns true if the session has not been saved yet.
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# File 'lib/authlogic/session/base.rb', line 233 def new_session? new_session != false end |
#persisting? ⇒ Boolean
Returns true if the session is being persisted. This is set to false if the session was found by the single_access_token, since logging in via a single access token should not remember the user in the session or the cookie.
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# File 'lib/authlogic/session/base.rb', line 244 def persisting? persisting == true end |
#remember_me ⇒ Object
:nodoc:
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# File 'lib/authlogic/session/base.rb', line 248 def remember_me # :nodoc: return @remember_me if defined?(@remember_me) @remember_me = self.class.remember_me end |
#remember_me=(value) ⇒ Object
Accepts a boolean as a flag to remember the session or not. Basically to expire the cookie at the end of the session or keep it for “remember_me_until”.
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# File 'lib/authlogic/session/base.rb', line 254 def remember_me=(value) @remember_me = value end |
#remember_me? ⇒ Boolean
Allows users to be remembered via a cookie.
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# File 'lib/authlogic/session/base.rb', line 259 def remember_me? remember_me == true || remember_me == "true" || remember_me == "1" end |
#remember_me_until ⇒ Object
When to expire the cookie. See remember_me_for configuration option to change this.
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# File 'lib/authlogic/session/base.rb', line 264 def remember_me_until return unless remember_me? remember_me_for.from_now end |
#save {|result| ... } ⇒ Object
Creates / updates a new user session for you. It does all of the magic:
-
validates
-
sets session
-
sets cookie
-
updates magic fields
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# File 'lib/authlogic/session/base.rb', line 275 def save(&block) result = nil if valid? record.login_count = (record.login_count.blank? ? 1 : record.login_count + 1) if record.respond_to?(:login_count) if record.respond_to?(:current_login_at) record.last_login_at = record.current_login_at if record.respond_to?(:last_login_at) record.current_login_at = Time.now end if record.respond_to?(:current_login_ip) record.last_login_ip = record.current_login_ip if record.respond_to?(:last_login_ip) record.current_login_ip = controller.request.remote_ip end record.save_without_session_maintenance(false) self.new_session = false result = self else result = false end yield result if block_given? result end |
#save! ⇒ Object
Same as save but raises an exception when authentication fails
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# File 'lib/authlogic/session/base.rb', line 303 def save! result = save raise SessionInvalid.new(self) unless result result end |
#valid? ⇒ Boolean
Returns if the session is valid or not. Basically it means that a record could or could not be found. If the session is valid you will have a result when calling the “record” method. If it was unsuccessful you will not have a record.
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# File 'lib/authlogic/session/base.rb', line 322 def valid? errors.clear if valid_credentials? validate valid_record? return true if errors.empty? end self.record = nil false end |
#valid_http_auth? ⇒ Boolean
Tries to validate the session from information from a basic http auth, if it was provided.
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# File 'lib/authlogic/session/base.rb', line 335 def valid_http_auth? controller.authenticate_with_http_basic do |login, password| if !login.blank? && !password.blank? send("#{login_field}=", login) send("#{password_field}=", password) return valid? end end false end |
#validate ⇒ Object
Overwite this method to add your own validation, or use callbacks: before_validation, after_validation
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# File 'lib/authlogic/session/base.rb', line 348 def validate end |