demarches-normaliennes/app/models/api_token.rb
2023-09-20 14:11:09 +02:00

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class APIToken < ApplicationRecord
include ActiveRecord::SecureToken
belongs_to :administrateur, inverse_of: :api_tokens
has_many :procedures, through: :administrateur
before_save :check_allowed_procedure_ids_ownership
def context
context = { administrateur_id: administrateur_id, write_access: write_access? }
if full_access?
context.merge procedure_ids:
else
context.merge procedure_ids: procedure_ids & allowed_procedure_ids
end
end
def full_access?
allowed_procedure_ids.nil?
end
def procedures_to_allow
procedures.select(:id, :libelle, :path).where.not(id: allowed_procedure_ids || []).order(:libelle)
end
def allowed_procedures
if allowed_procedure_ids.present?
procedures.select(:id, :libelle, :path).where(id: allowed_procedure_ids).order(:libelle)
else
[]
end
end
def disallow_procedure(procedure_id)
allowed_procedure_ids = allowed_procedures.map(&:id) - [procedure_id]
if allowed_procedure_ids.empty?
allowed_procedure_ids = nil
end
update!(allowed_procedure_ids:)
end
# Prefix is made of the first 6 characters of the uuid base64 encoded
# it does not leak plain token
def prefix
Base64.urlsafe_encode64(id).slice(0, 5)
end
class << self
def generate(administrateur)
plain_token = generate_unique_secure_token
encrypted_token = BCrypt::Password.create(plain_token)
api_token = create!(administrateur:, encrypted_token:, name: Date.today.strftime('Jeton dAPI généré le %d/%m/%Y'))
packed_token = Base64.urlsafe_encode64([api_token.id, plain_token].join(';'))
[api_token, packed_token]
end
def find_and_verify(base64_packed_token)
id, plain_token = Base64.urlsafe_decode64(base64_packed_token).split(';')
find_by(id:, version: 3)&.then(&ensure_valid_token(plain_token))
end
private
def ensure_valid_token(plain_token)
-> (api_token) { api_token if BCrypt::Password.new(api_token.encrypted_token) == plain_token }
end
end
private
def check_allowed_procedure_ids_ownership
if allowed_procedure_ids.present?
self.allowed_procedure_ids = allowed_procedures.map(&:id)
end
end
end