Emi Matchu
21b967f83d
No buttons to change it or anything, or to link if you don't! Just a basic display and explanation!
110 lines
No EOL
4 KiB
Ruby
110 lines
No EOL
4 KiB
Ruby
class AuthUser < AuthRecord
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self.table_name = 'users'
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devise :database_authenticatable, :encryptable, :registerable, :validatable,
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:rememberable, :trackable, :recoverable, :omniauthable,
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omniauth_providers: [:neopass]
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validates :name, presence: true, uniqueness: {case_sensitive: false},
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length: {maximum: 30}
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has_one :user, foreign_key: :remote_id, inverse_of: :auth_user
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# It's important to keep AuthUser and User in sync. When we create an AuthUser
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# (e.g. through the registration process), we create a matching User, too. And
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# when the AuthUser's name changes, we update User to match.
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#
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# TODO: Should we sync deletions too? We don't do deletions anywhere in app
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# right now, so I'll hold off to avoid leaving dead code around.
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after_create :create_user!
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after_update :sync_name_with_user!, if: :saved_change_to_name?
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def create_user!
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User.create!(name: name, auth_server_id: 1, remote_id: id)
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end
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def sync_name_with_user!
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user.name = name
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user.save!
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end
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def uses_omniauth?
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provider? && uid?
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end
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def email_required?
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!uses_omniauth?
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end
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def password_required?
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super && !uses_omniauth?
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end
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def neopass?
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provider == "neopass"
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end
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def neopass_friendly_id
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neopass_email || uid
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end
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def self.from_omniauth(auth)
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raise MissingAuthInfoError, "Email missing" if auth.info.email.blank?
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transaction do
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find_or_create_by!(provider: auth.provider, uid: auth.uid) do |user|
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# This account is new! Let's do the initial setup.
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# TODO: Can we somehow get the Neopets username if one exists, instead
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# of just using total randomness?
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user.name = build_unique_username
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# Copy the email address from their Neopets account to their DTI
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# account, unless they already have a DTI account with this email, in
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# which case, ignore it. (It's primarily for their own convenience with
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# password recovery!)
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email_exists = AuthUser.where(email: auth.info.email).exists?
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user.email = auth.info.email unless email_exists
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end.tap do |user|
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# Additionally, whether this account is new or existing, make sure
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# we've saved the latest email to `neopass_email`.
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#
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# We track this separately from `email`, which the user can edit, to
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# use in the Settings UI to indicate what NeoPass you're linked to. (In
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# practice, this *shouldn't* ever change after initial setup, because
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# NeoPass emails are immutable? But why not be resilient!)
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user.update!(neopass_email: auth.info.email)
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end
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end
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end
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def self.build_unique_username
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# Start with a base name like "neopass-kougra-".
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random_species_name = Species.all.pluck(:name).sample
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base_name = "neopass-#{random_species_name}"
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# Fetch the list of names that already start with that.
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name_query = sanitize_sql_like(base_name) + "%"
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similar_names = where("name LIKE ?", name_query).pluck(:name).to_set
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# Shuffle the list of four-digit numbers to create 10000 possible names,
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# then use the first one that's not already claimed.
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potential_names = (0..9999).map { |n| "#{base_name}-#{n}" }.shuffle
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name = potential_names.find { |name| !similar_names.include?(name) }
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return name unless name.nil?
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# If that failed, try again but with six digits.
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potential_names = (0..999999).map { |n| "#{base_name}-#{n}" }.shuffle
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name = potential_names.find { |name| !similar_names.include?(name) }
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return name unless name.nil?
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# If *that* failed, then golly gee, we have millions of NeoPass users
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# running around using the default username. Good for us, I guess?? If so,
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# uhh, let's cross that bridge when we come to it. (At time of writing,
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# there are about 60k total registered DTI users at *all*.)
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raise "Failed to build unique username (all million+ names starting with " +
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"\"#{base_name}\" are taken??)"
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end
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class MissingAuthInfoError < ArgumentError;end
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end |