amahi/platform

# Amahi Home Server
# Copyright (C) 2007-2013 Amahi
#

require 'leases'

class NetworkController < ApplicationController
  KIND = Setting::NETWORK
  before_action :admin_required
  before_action :set_page_title
  IP_RANGE = 10

  def index
    @leases = use_sample_data? ? SampleData.load('leases') : Leases.all
  end

  def hosts
    get_hosts
  end

  def create_host
    sleep 2 if development?
    @host = Host.create(params_host)
    get_hosts
  end

  def destroy_host
    sleep 2 if development?
    @host = Host.find params[:id]
    @host.destroy
    render json: {:status=>:ok,id: @host.id }
  end

  def dns_aliases
    unless @advanced
      redirect_to network_engine_path
    else
      get_dns_aliases
    end
  end

  def create_dns_alias
    sleep 2 if development?
    @dns_alias = DnsAlias.create(params_create_alias)
    get_dns_aliases
  end

  def destroy_dns_alias
    sleep 2 if development?
    @dns_alias = DnsAlias.find params[:id]
    @dns_alias.destroy
    render json: { :status=>:ok, id: @dns_alias.id }
  end

  def settings
    unless @advanced
      redirect_to network_engine_path
    else
      @net = Setting.get 'net'
      @dns = Setting.find_or_create_by(KIND, 'dns', 'opendns')
      @dns_ip_1, @dns_ip_2 = DnsIpSetting.custom_dns_ips
      @dnsmasq_dhcp = Setting.find_or_create_by(KIND, 'dnsmasq_dhcp', '1')
      @dnsmasq_dns = Setting.find_or_create_by(KIND, 'dnsmasq_dns', '1')
      @lease_time = Setting.get("lease_time") || "14400"
      @gateway = Setting.find_or_create_by(KIND, 'gateway', '1').value
      @dyn_lo = Setting.find_or_create_by(KIND, 'dyn_lo', '100').value
      @dyn_hi = Setting.find_or_create_by(KIND, 'dyn_hi', '254').value
    end
  end

  def update_dns
    sleep 2 if development?
    case params[:setting_dns]
    when 'opendns', 'google', 'opennic', 'cloudflare'
      @saved = Setting.set("dns", params[:setting_dns], KIND)
      system("hda-ctl-hup")
    else
      @saved = true
    end
    render :json => { :status => @saved ? :ok : :not_acceptable }
  end

  def update_dns_ips
    sleep 2 if development?
    Setting.transaction do
      @ip_1_saved = DnsIpSetting.set("dns_ip_1", params[:dns_ip_1], KIND)
      @ip_2_saved = DnsIpSetting.set("dns_ip_2", params[:dns_ip_2], KIND)
      Setting.set("dns", 'custom', KIND)
      system("hda-ctl-hup")
    end
    if @ip_1_saved && @ip_2_saved
      render json: {status: :ok}
    else
      render json: {status: :not_acceptable, ip_1_saved: @ip_1_saved, ip_2_saved: @ip_2_saved}
    end
  end

  def update_lease_time
    sleep 2 if development?
    @saved = params[:lease_time].present? && params[:lease_time].to_i > 0 ? Setting.set("lease_time", params[:lease_time], KIND) : false
    render :json => { :status => @saved ? :ok : :not_acceptable }
    system("hda-ctl-hup")
  end

  def update_gateway
    sleep 2 if development?
    @saved = params[:gateway].to_i > 0 && params[:gateway].to_i < 255 ? Setting.set("gateway", params[:gateway], KIND) : false
    if @saved
      @net = Setting.get 'net'
      render json: { status: :ok, data: @net + '.' + params[:gateway] }
    else
      render json: { status: :not_acceptable }
    end
  end

  def toggle_setting
        sleep 2 if development?
        id = params[:id]
        s = Setting.find id
        s.value = (1 - s.value.to_i).to_s
        if s.save
            render json: { status: 'ok' }
            system("hda-ctl-hup")
        else
            render json: { status: 'error' }
        end
  end

  def update_dhcp_range
    if(params[:id] == "min")
      dyn_lo = params[:dyn_lo].to_i
      dyn_hi = Setting.find_by_name("dyn_hi").value.to_i
    else
      dyn_lo = Setting.find_by_name("dyn_lo").value.to_i
      dyn_hi = params[:dyn_hi].to_i
    end
    @saved = dyn_lo > 0 && dyn_hi < 255 && dyn_hi - dyn_lo > IP_RANGE
    if @saved
      Setting.set("dyn_lo", dyn_lo, KIND)
      Setting.set("dyn_hi", dyn_hi, KIND)
      system("hda-ctl-hup")
      render json: { status: :ok }
    else
      render json: { status: :not_acceptable }
    end
  end

private
  def set_page_title
    @page_title = t('network')
  end

  def get_hosts
    @hosts = Host.order('name ASC')
    @net = Setting.get 'net'
    # for development ease
    @net ||= '192.168.1' if Rails.env.development?
  end

  def get_dns_aliases
    @dns_aliases = DnsAlias.order('name ASC')
    @net = Setting.get 'net'
    # for development ease
    @net ||= '192.168.1' if Rails.env.development?
  end

  def params_create_alias
    params.require(:dns_alias).permit([:name, :address])
  end

  def params_host
    params.require(:host).permit(:name, :mac, :address)
  end

  def params_create_alias    
    params.require(:dns_alias).permit([:name, :address])
  end

  def params_host
    params.require(:host).permit(:name, :mac, :address)
  end
end