131 lines
2.9 KiB
Ruby
131 lines
2.9 KiB
Ruby
# frozen_string_literal: true
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# This concern assumes:
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# - a `#project` accessor
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# - a `#user` accessor
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# - a `#authentication_result` accessor
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# - a `#can?(object, action, subject)` method
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# - a `#ci?` method
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# - a `#download_request?` method
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# - a `#upload_request?` method
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# - a `#has_authentication_ability?(ability)` method
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module LfsRequest
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extend ActiveSupport::Concern
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CONTENT_TYPE = 'application/vnd.git-lfs+json'.freeze
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included do
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before_action :require_lfs_enabled!
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before_action :lfs_check_access!
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end
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private
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def require_lfs_enabled!
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return if Gitlab.config.lfs.enabled
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render(
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json: {
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message: 'Git LFS is not enabled on this GitLab server, contact your admin.',
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documentation_url: help_url
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},
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status: :not_implemented
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)
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end
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def lfs_check_access!
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return if download_request? && lfs_download_access?
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return if upload_request? && lfs_upload_access?
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if project.public? || can?(user, :read_project, project)
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lfs_forbidden!
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else
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render_lfs_not_found
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end
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end
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def lfs_forbidden!
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render_lfs_forbidden
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end
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def render_lfs_forbidden
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render(
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json: {
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message: 'Access forbidden. Check your access level.',
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documentation_url: help_url
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},
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content_type: CONTENT_TYPE,
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status: 403
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)
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end
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def render_lfs_not_found
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render(
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json: {
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message: 'Not found.',
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documentation_url: help_url
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},
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content_type: CONTENT_TYPE,
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status: 404
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)
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end
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def lfs_download_access?
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return false unless project.lfs_enabled?
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ci? || lfs_deploy_token? || user_can_download_code? || build_can_download_code? || deploy_token_can_download_code?
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end
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def deploy_token_can_download_code?
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deploy_token_present? &&
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deploy_token.project == project &&
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deploy_token.active? &&
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deploy_token.read_repository?
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end
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def deploy_token_present?
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user && user.is_a?(DeployToken)
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end
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def deploy_token
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user
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end
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def lfs_upload_access?
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return false unless project.lfs_enabled?
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return false unless has_authentication_ability?(:push_code)
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return false if limit_exceeded?
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lfs_deploy_token? || can?(user, :push_code, project)
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end
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def lfs_deploy_token?
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authentication_result.lfs_deploy_token?(project)
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end
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def user_can_download_code?
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has_authentication_ability?(:download_code) && can?(user, :download_code, project) && !deploy_token_present?
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end
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def build_can_download_code?
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has_authentication_ability?(:build_download_code) && can?(user, :build_download_code, project)
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end
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def storage_project
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@storage_project ||= project.lfs_storage_project
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end
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def objects
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@objects ||= (params[:objects] || []).to_a
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end
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def has_authentication_ability?(capability)
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(authentication_abilities || []).include?(capability)
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end
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# Overriden in EE
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def limit_exceeded?
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false
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end
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end
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