sort.lua.svn-base

嵌入式无线路由系统openwrt的web配置工具

#!/usr/bin/lua
-- Copyright (C) 2008 OpenRB.com
require('fslib')

data = datajson() or {}
if (data.id ~= nil and data.extra ~= nil) then
  fw = uci.get_array('firewall')
  moveid = data.id
  moveto = data.extra
  found = false

  -- scan through fw config, found id of next and previous rules
  for i, params in ipairs(fw) do
    type = params['.type']
    id = params['.name'] 

    if (type == 'rule' or type == 'redirect') then
      if (found) then
        nextid = id
        nextnum = i
        break
      elseif (id == moveid) then
        found = true
        movenum = i
      else
        previd = id
        prevnum = i
      end
    end
  end

  -- make sure we are not moving first rule up and last one down
  if (moveto == 'up' and previd ~= nil) then
    switchid = previd
    switchnum = prevnum
  elseif (moveto == 'down' and nextid ~= nil) then
    switchid = nextid
    switchnum = nextnum
  end

  -- found id to switch values, delete all previous values and set new
  if (switchid ~= nil) then
    uci.set('firewall', moveid, fw[ switchnum ]['.type'])
    uci.set('firewall', switchid, fw[ movenum ]['.type'])

    for param, value in pairs(fw[ movenum ]) do
      first = param:sub(1,1)

      if (first == '.') then
        fw[ movenum ][ param ] = nil
      else
        uci.delete('firewall', moveid, param)
      end
    end

    for param, value in pairs(fw[ switchnum ]) do
      first = param:sub(1,1)

      if (first == '.') then
        fw[ switchnum ][ param ] = nil
      else
        uci.delete('firewall', switchid, param)
      end
    end

    for param, value in pairs(fw[ movenum ]) do
      uci.set('firewall', switchid, param, value)
    end

    for param, value in pairs(fw[ switchnum ]) do
      uci.set('firewall', moveid, param, value)
    end

    uci.commit('firewall')
  end
end