HTTP Cookie Javascript

2007. 8. 23. 17:19Programming/JavaScript

HTTP Cookie 를 사용하기 위한 쉬운 자바스크립트 코드
Static function으로 처리되어 있어서 Cookies. 으로 시작하는 구문으로 set과 get을 이용하면 되겠다.

// old school cookie functions grabbed off the web
var Cookies = {};
Cookies.set = function(name, value){
     var argv = arguments;
     var argc = arguments.length;
     var expires = (argc > 2) ? argv[2] : null;
     var path = (argc > 3) ? argv[3] : '/';
     var domain = (argc > 4) ? argv[4] : null;
     var secure = (argc > 5) ? argv[5] : false;
     document.cookie = name + "=" + escape (value) +
       ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
       ((path == null) ? "" : ("; path=" + path)) +
       ((domain == null) ? "" : ("; domain=" + domain)) +
       ((secure == true) ? "; secure" : "");
};

Cookies.get = function(name){
 var arg = name + "=";
 var alen = arg.length;
 var clen = document.cookie.length;
 var i = 0;
 var j = 0;
 while(i < clen){
  j = i + alen;
  if (document.cookie.substring(i, j) == arg)
   return Cookies.getCookieVal(j);
  i = document.cookie.indexOf(" ", i) + 1;
  if(i == 0)
   break;
 }
 return null;
};

Cookies.clear = function(name) {
  if(Cookies.get(name)){
    document.cookie = name + "=" +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
};

Cookies.getCookieVal = function(offset){
   var endstr = document.cookie.indexOf(";", offset);
   if(endstr == -1){
       endstr = document.cookie.length;
   }
   return unescape(document.cookie.substring(offset, endstr));
};

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