foodsoft/plugins/printer/app/controllers/printer_controller.rb

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class PrinterController < ApplicationController
include Concerns::SendOrderPdf
include Tubesock::Hijack
skip_before_filter :authenticate
before_filter :authenticate_printer
before_filter -> { require_plugin_enabled FoodsoftPrinter }
def socket
hijack do |tubesock|
tubesock.onopen do
tubesock.send_data unfinished_jobs
end
tubesock.onmessage do |data|
update_job data
tubesock.send_data unfinished_jobs
end
end
end
def show
job = PrinterJob.find(params[:id])
send_order_pdf job.order, job.document
end
private
def unfinished_jobs
{
unfinished_jobs: PrinterJob.pending.map(&:id)
}.to_json
end
def update_job(data)
json = JSON.parse data, symbolize_names: true
job = PrinterJob.unfinished.find_by_id(json[:id])
return unless job
if json[:state]
job.add_update! json[:state], json[:message]
end
job.finish! if json[:finish]
end
protected
def bearer_token
pattern = /^Bearer /
header = request.headers['Authorization']
header.gsub(pattern, '') if header && header.match(pattern)
end
def authenticate_printer
return head(:unauthorized) unless bearer_token
return head(:forbidden) if bearer_token != FoodsoftConfig[:printer_token]
end
end