js-common-tools/lib/cookie/index.js

JS常用工具函数

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var cookie = function cookie(sKey, sValue, vEnd, sPath, sDomain, bSecure) {
  if (sValue) {
    cookie.set(sKey, sValue, vEnd, sPath, sDomain, bSecure);
  } else {
    return cookie.get(sKey);
  }
};

cookie.get = function (sKey) {
  if (!sKey) {
    return null;
  }
  return decodeURIComponent(document.cookie.replace(new RegExp('(?:(?:^|.*;)\\s*' + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, '\\$&') + '\\s*\\=\\s*([^;]*).*$)|^.*$'), '$1')) || null;
};

cookie.set = function (sKey, sValue, vExpires, sPath, sDomain, bSecure) {
  if (!sKey || /^(?:expires|max\-age|path|domain|secure)$/i.test(sKey)) {
    return false;
  }
  var sExpires = '';
  if (vExpires) {
    switch (vExpires.constructor) {
      case Number:
        sExpires = vExpires === Infinity ? '; expires=Fri, 31 Dec 9999 23:59:59 GMT' : '; max-age=' + vExpires;
        break;
      case String:
        sExpires = '; expires=' + vExpires;
        break;
      case Date:
        sExpires = '; expires=' + vExpires.toUTCString();
        break;
    }
  }
  document.cookie = encodeURIComponent(sKey) + '=' + encodeURIComponent(sValue) + sExpires + (sDomain ? '; domain=' + sDomain : '') + (sPath ? '; path=' + sPath : '') + (bSecure ? '; secure' : '');
  return true;
};

cookie.remove = function (sKey, sPath, sDomain) {
  if (!cookie.hasKey(sKey)) {
    return false;
  }
  document.cookie = encodeURIComponent(sKey) + '=; expires=Thu, 01 Jan 1970 00:00:00 GMT' + (sDomain ? '; domain=' + sDomain : '') + (sPath ? '; path=' + sPath : '');
  return true;
};

cookie.hasKey = function (sKey) {
  if (!sKey) {
    return false;
  }
  return new RegExp('(?:^|;\\s*)' + encodeURIComponent(sKey).replace(/[\-\.\+\*]/g, '\\$&') + '\\s*\\=').test(document.cookie);
};

cookie.keys = function () {
  var aKeys = document.cookie.replace(/((?:^|\s*;)[^\=]+)(?=;|$)|^\s*|\s*(?:\=[^;]*)?(?:\1|$)/g, '').split(/\s*(?:\=[^;]*)?;\s*/);
  for (var nLen = aKeys.length, nIdx = 0; nIdx < nLen; nIdx++) {
    aKeys[nIdx] = decodeURIComponent(aKeys[nIdx]);
  }
  return aKeys;
};

exports.cookie = cookie;