discourse/app/models/email_token.rb

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class EmailToken < ActiveRecord::Base
belongs_to :user
validates_presence_of :token
validates_presence_of :user_id
validates_presence_of :email
before_validation(on: :create) do
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self.token = EmailToken.generate_token
end
after_create do
# Expire the previous tokens
EmailToken.where(['user_id = ? and id != ?', self.user_id, self.id]).update_all 'expired = true'
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end
def self.token_length
16
end
def self.valid_after
1.week.ago
end
def self.confirm_valid_after
1.day.ago
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end
def self.unconfirmed
where(confirmed: false)
end
def self.active
where(expired: false).where('created_at > ?', valid_after)
end
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def self.generate_token
SecureRandom.hex(EmailToken.token_length)
end
def self.confirm(token)
return unless token.present?
return unless token.length/2 == EmailToken.token_length
email_token = EmailToken.where("token = ? and expired = FALSE AND ((NOT confirmed AND created_at >= ?) OR (confirmed AND created_at >= ?))", token, EmailToken.valid_after, EmailToken.confirm_valid_after).includes(:user).first
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return if email_token.blank?
user = email_token.user
User.transaction do
row_count = EmailToken.where(id: email_token.id, expired: false).update_all 'confirmed = true'
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if row_count == 1
# If we are activating the user, send the welcome message
user.send_welcome_message = !user.active?
user.active = true
user.email = email_token.email
user.save!
end
end
user
rescue ActiveRecord::RecordInvalid
# If the user's email is already taken, just return nil (failure)
end
end
# == Schema Information
#
# Table name: email_tokens
#
# id :integer not null, primary key
# user_id :integer not null
# email :string(255) not null
# token :string(255) not null
# confirmed :boolean default(FALSE), not null
# expired :boolean default(FALSE), not null
# created_at :datetime not null
# updated_at :datetime not null
#
# Indexes
#
# index_email_tokens_on_token (token) UNIQUE
#