chinwagsocial/app/controllers/api_controller.rb

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# frozen_string_literal: true
class ApiController < ApplicationController
DEFAULT_STATUSES_LIMIT = 20
DEFAULT_ACCOUNTS_LIMIT = 40
protect_from_forgery with: :null_session
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skip_before_action :verify_authenticity_token
skip_before_action :store_current_location
before_action :set_rate_limit_headers
rescue_from ActiveRecord::RecordInvalid, Mastodon::ValidationError do |e|
render json: { error: e.to_s }, status: 422
end
rescue_from ActiveRecord::RecordNotFound do
render json: { error: 'Record not found' }, status: 404
end
rescue_from Goldfinger::Error do
render json: { error: 'Remote account could not be resolved' }, status: 422
end
rescue_from HTTP::Error do
render json: { error: 'Remote data could not be fetched' }, status: 503
end
rescue_from OpenSSL::SSL::SSLError do
render json: { error: 'Remote SSL certificate could not be verified' }, status: 503
end
rescue_from Mastodon::NotPermittedError do
render json: { error: 'This action is not allowed' }, status: 403
end
def doorkeeper_unauthorized_render_options(error: nil)
{ json: { error: (error.try(:description) || 'Not authorized') } }
end
def doorkeeper_forbidden_render_options(*)
{ json: { error: 'This action is outside the authorized scopes' } }
end
protected
def set_rate_limit_headers
return if request.env['rack.attack.throttle_data'].nil?
now = Time.now.utc
match_data = request.env['rack.attack.throttle_data']['api']
response.headers['X-RateLimit-Limit'] = match_data[:limit].to_s
response.headers['X-RateLimit-Remaining'] = (match_data[:limit] - match_data[:count]).to_s
response.headers['X-RateLimit-Reset'] = (now + (match_data[:period] - now.to_i % match_data[:period])).iso8601(6)
end
def set_pagination_headers(next_path = nil, prev_path = nil)
links = []
links << [next_path, [%w(rel next)]] if next_path
links << [prev_path, [%w(rel prev)]] if prev_path
response.headers['Link'] = LinkHeader.new(links)
end
def limit_param(default_limit)
return default_limit unless params[:limit]
[params[:limit].to_i.abs, default_limit * 2].min
end
def current_resource_owner
@current_user ||= User.find(doorkeeper_token.resource_owner_id) if doorkeeper_token
end
def current_user
current_resource_owner || super
rescue ActiveRecord::RecordNotFound
nil
end
def require_user!
current_resource_owner
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set_user_activity
rescue ActiveRecord::RecordNotFound
render json: { error: 'This method requires an authenticated user' }, status: 422
end
def render_empty
render json: {}, status: 200
end
def set_maps(statuses) # rubocop:disable Style/AccessorMethodName
if current_account.nil?
@reblogs_map = {}
@favourites_map = {}
@mutes_map = {}
return
end
status_ids = statuses.compact.flat_map { |s| [s.id, s.reblog_of_id] }.uniq
conversation_ids = statuses.compact.map(&:conversation_id).compact.uniq
@reblogs_map = Status.reblogs_map(status_ids, current_account)
@favourites_map = Status.favourites_map(status_ids, current_account)
@mutes_map = Status.mutes_map(conversation_ids, current_account)
end
end