306 lines
12 KiB
Ruby
306 lines
12 KiB
Ruby
module Devise
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module Models
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# Confirmable is responsible to verify if an account is already confirmed to
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# sign in, and to send emails with confirmation instructions.
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# Confirmation instructions are sent to the user email after creating a
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# record and when manually requested by a new confirmation instruction request.
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#
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# == Options
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#
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# Confirmable adds the following options to +devise+:
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#
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# * +allow_unconfirmed_access_for+: the time you want to allow the user to access their account
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# before confirming it. After this period, the user access is denied. You can
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# use this to let your user access some features of your application without
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# confirming the account, but blocking it after a certain period (ie 7 days).
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# By default allow_unconfirmed_access_for is zero, it means users always have to confirm to sign in.
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# * +reconfirmable+: requires any email changes to be confirmed (exactly the same way as
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# initial account confirmation) to be applied. Requires additional unconfirmed_email
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# db field to be setup (t.reconfirmable in migrations). Until confirmed new email is
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# stored in unconfirmed email column, and copied to email column on successful
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# confirmation.
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# * +confirm_within+: the time before a sent confirmation token becomes invalid.
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# You can use this to force the user to confirm within a set period of time.
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#
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# == Examples
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#
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# User.find(1).confirm! # returns true unless it's already confirmed
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# User.find(1).confirmed? # true/false
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# User.find(1).send_confirmation_instructions # manually send instructions
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#
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module Confirmable
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extend ActiveSupport::Concern
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include ActionView::Helpers::DateHelper
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included do
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before_create :generate_confirmation_token, if: :confirmation_required?
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after_create :send_on_create_confirmation_instructions, if: :send_confirmation_notification?
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before_update :postpone_email_change_until_confirmation_and_regenerate_confirmation_token, if: :postpone_email_change?
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after_update :send_reconfirmation_instructions, if: :reconfirmation_required?
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end
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def initialize(*args, &block)
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@bypass_confirmation_postpone = false
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@reconfirmation_required = false
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@skip_confirmation_notification = false
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@raw_confirmation_token = nil
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super
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end
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def self.required_fields(klass)
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required_methods = [:confirmation_token, :confirmed_at, :confirmation_sent_at]
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required_methods << :unconfirmed_email if klass.reconfirmable
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required_methods
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end
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# Confirm a user by setting it's confirmed_at to actual time. If the user
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# is already confirmed, add an error to email field. If the user is invalid
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# add errors
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def confirm!
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pending_any_confirmation do
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if confirmation_period_expired?
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self.errors.add(:email, :confirmation_period_expired,
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period: Devise::TimeInflector.time_ago_in_words(self.class.confirm_within.ago))
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return false
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end
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self.confirmation_token = nil
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self.confirmed_at = Time.now.utc
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saved = if self.class.reconfirmable && unconfirmed_email.present?
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skip_reconfirmation!
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self.email = unconfirmed_email
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self.unconfirmed_email = nil
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# We need to validate in such cases to enforce e-mail uniqueness
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save(validate: true)
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else
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save(validate: false)
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end
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after_confirmation if saved
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saved
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end
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end
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# Verifies whether a user is confirmed or not
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def confirmed?
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!!confirmed_at
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end
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def pending_reconfirmation?
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self.class.reconfirmable && unconfirmed_email.present?
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end
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# Send confirmation instructions by email
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def send_confirmation_instructions
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unless @raw_confirmation_token
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generate_confirmation_token!
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end
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opts = pending_reconfirmation? ? { to: unconfirmed_email } : { }
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send_devise_notification(:confirmation_instructions, @raw_confirmation_token, opts)
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end
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def send_reconfirmation_instructions
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@reconfirmation_required = false
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unless @skip_confirmation_notification
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send_confirmation_instructions
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end
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end
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# Resend confirmation token.
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# Regenerates the token if the period is expired.
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def resend_confirmation_instructions
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pending_any_confirmation do
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send_confirmation_instructions
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end
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end
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# Overwrites active_for_authentication? for confirmation
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# by verifying whether a user is active to sign in or not. If the user
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# is already confirmed, it should never be blocked. Otherwise we need to
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# calculate if the confirm time has not expired for this user.
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def active_for_authentication?
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super && (!confirmation_required? || confirmed? || confirmation_period_valid?)
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end
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# The message to be shown if the account is inactive.
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def inactive_message
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!confirmed? ? :unconfirmed : super
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end
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# If you don't want confirmation to be sent on create, neither a code
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# to be generated, call skip_confirmation!
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def skip_confirmation!
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self.confirmed_at = Time.now.utc
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end
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# Skips sending the confirmation/reconfirmation notification email after_create/after_update. Unlike
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# #skip_confirmation!, record still requires confirmation.
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def skip_confirmation_notification!
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@skip_confirmation_notification = true
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end
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# If you don't want reconfirmation to be sent, neither a code
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# to be generated, call skip_reconfirmation!
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def skip_reconfirmation!
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@bypass_confirmation_postpone = true
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end
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protected
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# A callback method used to deliver confirmation
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# instructions on creation. This can be overridden
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# in models to map to a nice sign up e-mail.
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def send_on_create_confirmation_instructions
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send_confirmation_instructions
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end
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# Callback to overwrite if confirmation is required or not.
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def confirmation_required?
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!confirmed?
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end
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# Checks if the confirmation for the user is within the limit time.
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# We do this by calculating if the difference between today and the
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# confirmation sent date does not exceed the confirm in time configured.
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# Confirm_within is a model configuration, must always be an integer value.
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#
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# Example:
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#
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# # allow_unconfirmed_access_for = 1.day and confirmation_sent_at = today
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# confirmation_period_valid? # returns true
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#
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# # allow_unconfirmed_access_for = 5.days and confirmation_sent_at = 4.days.ago
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# confirmation_period_valid? # returns true
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#
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# # allow_unconfirmed_access_for = 5.days and confirmation_sent_at = 5.days.ago
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# confirmation_period_valid? # returns false
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#
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# # allow_unconfirmed_access_for = 0.days
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# confirmation_period_valid? # will always return false
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#
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# # allow_unconfirmed_access_for = nil
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# confirmation_period_valid? # will always return true
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#
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def confirmation_period_valid?
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self.class.allow_unconfirmed_access_for.nil? || (confirmation_sent_at && confirmation_sent_at.utc >= self.class.allow_unconfirmed_access_for.ago)
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end
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# Checks if the user confirmation happens before the token becomes invalid
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# Examples:
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#
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# # confirm_within = 3.days and confirmation_sent_at = 2.days.ago
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# confirmation_period_expired? # returns false
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#
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# # confirm_within = 3.days and confirmation_sent_at = 4.days.ago
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# confirmation_period_expired? # returns true
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#
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# # confirm_within = nil
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# confirmation_period_expired? # will always return false
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#
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def confirmation_period_expired?
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self.class.confirm_within && (Time.now > self.confirmation_sent_at + self.class.confirm_within )
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end
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# Checks whether the record requires any confirmation.
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def pending_any_confirmation
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if (!confirmed? || pending_reconfirmation?)
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yield
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else
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self.errors.add(:email, :already_confirmed)
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false
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end
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end
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# Generates a new random token for confirmation, and stores
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# the time this token is being generated
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def generate_confirmation_token
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raw, enc = Devise.token_generator.generate(self.class, :confirmation_token)
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@raw_confirmation_token = raw
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self.confirmation_token = enc
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self.confirmation_sent_at = Time.now.utc
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end
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def generate_confirmation_token!
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generate_confirmation_token && save(validate: false)
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end
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def postpone_email_change_until_confirmation_and_regenerate_confirmation_token
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@reconfirmation_required = true
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self.unconfirmed_email = self.email
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self.email = self.email_was
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generate_confirmation_token
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end
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def postpone_email_change?
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postpone = self.class.reconfirmable && email_changed? && !@bypass_confirmation_postpone && self.email.present?
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@bypass_confirmation_postpone = false
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postpone
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end
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def reconfirmation_required?
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self.class.reconfirmable && @reconfirmation_required && self.email.present?
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end
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def send_confirmation_notification?
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confirmation_required? && !@skip_confirmation_notification && self.email.present?
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end
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# A callback initiated after successfully confirming. This can be
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# used to insert your own logic that is only run after the user successfully
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# confirms.
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#
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# Example:
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#
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# def after_confirmation
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# self.update_attribute(:invite_code, nil)
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# end
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#
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def after_confirmation
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end
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module ClassMethods
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# Attempt to find a user by its email. If a record is found, send new
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# confirmation instructions to it. If not, try searching for a user by unconfirmed_email
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# field. If no user is found, returns a new user with an email not found error.
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# Options must contain the user email
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def send_confirmation_instructions(attributes={})
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confirmable = find_by_unconfirmed_email_with_errors(attributes) if reconfirmable
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unless confirmable.try(:persisted?)
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confirmable = find_or_initialize_with_errors(confirmation_keys, attributes, :not_found)
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end
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confirmable.resend_confirmation_instructions if confirmable.persisted?
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confirmable
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end
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# Find a user by its confirmation token and try to confirm it.
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# If no user is found, returns a new user with an error.
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# If the user is already confirmed, create an error for the user
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# Options must have the confirmation_token
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def confirm_by_token(confirmation_token)
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original_token = confirmation_token
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confirmation_token = Devise.token_generator.digest(self, :confirmation_token, confirmation_token)
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confirmable = find_or_initialize_with_error_by(:confirmation_token, confirmation_token)
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confirmable.confirm! if confirmable.persisted?
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confirmable.confirmation_token = original_token
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confirmable
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end
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# Find a record for confirmation by unconfirmed email field
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def find_by_unconfirmed_email_with_errors(attributes = {})
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unconfirmed_required_attributes = confirmation_keys.map { |k| k == :email ? :unconfirmed_email : k }
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unconfirmed_attributes = attributes.symbolize_keys
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unconfirmed_attributes[:unconfirmed_email] = unconfirmed_attributes.delete(:email)
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find_or_initialize_with_errors(unconfirmed_required_attributes, unconfirmed_attributes, :not_found)
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end
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Devise::Models.config(self, :allow_unconfirmed_access_for, :confirmation_keys, :reconfirmable, :confirm_within)
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end
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end
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end
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end
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