ligle-midware/lib/field-checker.js

midware

// 各种各样的check函数，应该放到util中。暂时先放到这里。

function checkName(name){
  if(!name){
    return [false,'invalid name'];
  }
  if(name ==='sessions' ||
     name ==='system.indexes' ||
     name ==='' ||
     name.match(/[\:\/\?\%\&\s=]/)){
    return [false,'invalid name'];
  }else{
    return [true,'ok'];
  }
}

function checkEmail(email){
  var emailReg =  /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
  if(!emailReg.test(email)){
    return [false,'invalid email'];
  }else{
    return [true,'ok'];
  }
}

function checkUUID(uuid){
  var re = new RegExp(
    '[0-9a-f]{22}|[0-9a-f]{8}-[0-9a-f]{4}'+
      '-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}',
    'i');

  if (!re.test(uuid)) {
    return [false,'invalid uuid'];
  }else{
    return [true,'ok'];
  }
}

function checkCellphone(number){
  var cellRegExp = /^1[3|4|5|8][0-9]\d{8}$/;
  if(!cellRegExp.test(number)){
    return [false,'invalid cellphone number'];
  }else{
    return [true,'ok'];
  }
}

function checkPassword(pwd){
  if(!pwd) {
    return [false,'password is empty'];
  }
  if(pwd===''){
    return [false,'password is empty'];
  }else{
    return [true,'ok'];
  }
}

var checkers = {
  email:checkEmail,
  cellphone:checkCellphone,
  name:checkName,
  password:checkPassword,
  uuid:checkUUID,
};


/**
 * 中间件生成器：生成检查域的中间件。
 * @method
 * @param {obj} checkCfg 检查的配置。格式为{fields:checkerName}
 * @return {null}
 * @example
 * checker({nickname:'name',email:'email',phone:'cellphone'})
 */
var checker = function(checkCfg){
  return function(req,res,next){
    for(var key in checkCfg){
      var result = checkers[checkCfg[key]](req.body[key]);
      var pass = result[0];
      var msg = result[1];
      if(!pass){
        res.rd.errorBack(msg,req.xhr);
        return;
      }
    }
    next();
  };
};


module.exports = function(ligle){
  var logger = require('./index.js').logger;
  var cfg = require('./index.js').cfg;
  return checker;
};