74 lines
2.6 KiB
Ruby
74 lines
2.6 KiB
Ruby
# == Schema Information
|
||
#
|
||
# Table name: api_tokens
|
||
#
|
||
# id :uuid not null, primary key
|
||
# encrypted_token :string not null
|
||
# name :string not null
|
||
# version :integer default(3), not null
|
||
# created_at :datetime not null
|
||
# updated_at :datetime not null
|
||
# administrateur_id :bigint not null
|
||
#
|
||
class APIToken < ApplicationRecord
|
||
include ActiveRecord::SecureToken
|
||
|
||
belongs_to :administrateur, inverse_of: :api_tokens
|
||
|
||
# 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 d’API 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(maybe_packed_token, administrateurs = [])
|
||
case unpack(maybe_packed_token)
|
||
in { plain_token:, id: } # token v3
|
||
find_by(id:, version: 3)&.then(&ensure_valid_token(plain_token))
|
||
in { plain_token:, administrateur_id: } # token v2
|
||
# the migration to the APIToken model set `version: 1` for all the v1 and v2 token
|
||
# this is the only place where we can fix the version
|
||
where(administrateur_id:, version: 1).update_all(version: 2) # update to v2
|
||
find_by(administrateur_id:, version: 2)&.then(&ensure_valid_token(plain_token))
|
||
in { plain_token: } # token v1
|
||
where(administrateur: administrateurs, version: 1).find(&ensure_valid_token(plain_token))
|
||
end
|
||
end
|
||
|
||
private
|
||
|
||
UUID_SIZE = SecureRandom.uuid.size
|
||
def unpack(maybe_packed_token)
|
||
case message_verifier.verified(maybe_packed_token)
|
||
in [administrateur_id, plain_token]
|
||
{ plain_token:, administrateur_id: }
|
||
else
|
||
case Base64.urlsafe_decode64(maybe_packed_token).split(';')
|
||
in [id, plain_token] if id.size == UUID_SIZE # valid format "<uuid>;<random token>"
|
||
{ plain_token:, id: }
|
||
else
|
||
{ plain_token: maybe_packed_token }
|
||
end
|
||
end
|
||
rescue
|
||
{ plain_token: maybe_packed_token }
|
||
end
|
||
|
||
def message_verifier
|
||
Rails.application.message_verifier('api_v2_token')
|
||
end
|
||
|
||
def ensure_valid_token(plain_token)
|
||
-> (api_token) { api_token if BCrypt::Password.new(api_token.encrypted_token) == plain_token }
|
||
end
|
||
end
|
||
end
|