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# frozen_string_literal: true
require 'digest/md5'
class Key < ApplicationRecord
include AfterCommitQueue
include Sortable
include Sha256Attribute
include Expirable
sha256_attribute :fingerprint_sha256
belongs_to :user
before_validation :generate_fingerprint
validates :title,
presence: true,
length: { maximum: 255 }
validates :key,
presence: true,
length: { maximum: 5000 },
format: { with: /\A(ssh|ecdsa)-.*\Z/ }
validates :fingerprint,
uniqueness: true,
presence: { message: 'cannot be generated' }
validate :key_meets_restrictions
delegate :name, :email, to: :user, prefix: true
after_commit :add_to_authorized_keys, on: :create
after_create :post_create_hook
after_create :refresh_user_cache
after_commit :remove_from_authorized_keys, on: :destroy
after_destroy :post_destroy_hook
after_destroy :refresh_user_cache
alias_attribute :fingerprint_md5, :fingerprint
scope :preload_users, -> { preload(:user) }
scope :for_user, -> (user) { where(user: user) }
scope :order_last_used_at_desc, -> { reorder(::Gitlab::Database.nulls_last_order('last_used_at', 'DESC')) }
def self.regular_keys
where(type: ['Key', nil])
end
def key=(value)
write_attribute(:key, value.present? ? Gitlab::SSHPublicKey.sanitize(value) : nil)
@public_key = nil
end
def publishable_key
# Strip out the keys comment so we don't leak email addresses
# Replace with simple ident of user_name (hostname)
self.key.split[0..1].push("#{self.user_name} (#{Gitlab.config.gitlab.host})").join(' ')
end
# projects that has this key
def projects
user.authorized_projects
end
def shell_id
"key-#{id}"
end
# EE overrides this
def can_delete?
true
end
# rubocop: disable CodeReuse/ServiceClass
def update_last_used_at
Keys::LastUsedService.new(self).execute
end
# rubocop: enable CodeReuse/ServiceClass
def add_to_authorized_keys
return unless Gitlab::CurrentSettings.authorized_keys_enabled?
AuthorizedKeysWorker.perform_async(:add_key, shell_id, key)
end
# rubocop: disable CodeReuse/ServiceClass
def post_create_hook
SystemHooksService.new.execute_hooks_for(self, :create)
end
# rubocop: enable CodeReuse/ServiceClass
def remove_from_authorized_keys
return unless Gitlab::CurrentSettings.authorized_keys_enabled?
AuthorizedKeysWorker.perform_async(:remove_key, shell_id)
end
# rubocop: disable CodeReuse/ServiceClass
def refresh_user_cache
return unless user
Users::KeysCountService.new(user).refresh_cache
end
# rubocop: enable CodeReuse/ServiceClass
# rubocop: disable CodeReuse/ServiceClass
def post_destroy_hook
SystemHooksService.new.execute_hooks_for(self, :destroy)
end
# rubocop: enable CodeReuse/ServiceClass
def public_key
@public_key ||= Gitlab::SSHPublicKey.new(key)
end
private
def generate_fingerprint
self.fingerprint = nil
self.fingerprint_sha256 = nil
return unless public_key.valid?
self.fingerprint_md5 = public_key.fingerprint
self.fingerprint_sha256 = public_key.fingerprint("SHA256").gsub("SHA256:", "")
end
def key_meets_restrictions
restriction = Gitlab::CurrentSettings.key_restriction_for(public_key.type)
if restriction == ApplicationSetting::FORBIDDEN_KEY_VALUE
errors.add(:key, forbidden_key_type_message)
elsif public_key.bits < restriction
errors.add(:key, "must be at least #{restriction} bits")
end
end
def forbidden_key_type_message
allowed_types = Gitlab::CurrentSettings.allowed_key_types.map(&:upcase)
"type is forbidden. Must be #{Gitlab::Utils.to_exclusive_sentence(allowed_types)}"
end
end
Key.prepend_if_ee('EE::Key')
|
