jQuery身份证验证插件

/*!
 * jQuery isIDCard Plugin v1.0.0
 * http://www.cnblogs.com/cssfirefly/p/5629561.html
 *
 * Copyright 2016 link
 * Released under the MIT license
 */
(function(factory) {
    if (typeof define === 'function' && define.amd) {
        // AMD
        define(['jquery'], factory);
    } else if (typeof exports === 'object') {
        // CommonJS
        factory(require('jquery'));
    } else {
        // Browser globals
        factory(jQuery);
    }
}(function($) {


    var config = $.isIDCard = function(key) {


        var result = key ? undefined : {};

        // To prevent the for loop in the first place assign an empty array
        // in case there are no cookies at all. Also prevents odd result when
        // calling $.cookie().


        function scCard(key) {
            if (key.length != 0) {
                if (!checkCard(key)) {
                    return false
                } else {
                    return true
                }
            }
            return false;
        }

        var vcity = {
            11: "北京",
            12: "天津",
            13: "河北",
            14: "山西",
            15: "内蒙古",
            21: "辽宁",
            22: "吉林",
            23: "黑龙江",
            31: "上海",
            32: "江苏",
            33: "浙江",
            34: "安徽",
            35: "福建",
            36: "江西",
            37: "山东",
            41: "河南",
            42: "湖北",
            43: "湖南",
            44: "广东",
            45: "广西",
            46: "海南",
            50: "重庆",
            51: "四川",
            52: "贵州",
            53: "云南",
            54: "西藏",
            61: "陕西",
            62: "甘肃",
            63: "青海",
            64: "宁夏",
            65: "新疆",
            71: "中国台湾",
            81: "中国香港",
            82: "中国澳门",
            91: "国外"
        };
        checkCard = function(obj) {
            
            //校验长度，类型 
            if (isCardNo(obj) === false) {
                return false;
            }
            //检查省份 
            if (checkProvince(obj) === false) {
                return false;
            }
            //校验生日 
            if (checkBirthday(obj) === false) {
                return false;
            }
            //检验位的检测 
            if (checkParity(obj) === false) {
                return false;
            }
            return true;
        };
        //检查号码是否符合规范，包括长度，类型 
        isCardNo = function(obj) {
            //身份证号码为15位或者18位，15位时全为数字，18位前17位为数字，最后一位是校验位，可能为数字或字符X 
            var reg = /(^\d{15}$)|(^\d{17}(\d|X)$)/;
            if (reg.test(obj) === false) {
                return false;
            }
            return true;
        };
        //取身份证前两位,校验省份 
        checkProvince = function(obj) {
            var province = obj.substr(0, 2);
            if (vcity[province] == undefined) {
                return false;
            }
            return true;
        };
        //检查生日是否正确 
        checkBirthday = function(obj) {
            var len = obj.length;
            //身份证15位时，次序为省（3位）市（3位）年（2位）月（2位）日（2位）校验位（3位），皆为数字 
            if (len == '15') {
                var re_fifteen = /^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/;
                var arr_data = obj.match(re_fifteen);
                var year = arr_data[2];
                var month = arr_data[3];
                var day = arr_data[4];
                var birthday = new Date('19' + year + '/' + month + '/' + day);
                return verifyBirthday('19' + year, month, day, birthday);
            }
            //身份证18位时，次序为省（3位）市（3位）年（4位）月（2位）日（2位）校验位（4位），校验位末尾可能为X 
            if (len == '18') {
                var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/;
                var arr_data = obj.match(re_eighteen);
                var year = arr_data[2];
                var month = arr_data[3];
                var day = arr_data[4];
                var birthday = new Date(year + '/' + month + '/' + day);
                return verifyBirthday(year, month, day, birthday);
            }
            return false;
        };
        //校验日期 
        verifyBirthday = function(year, month, day, birthday) {
            var now = new Date();
            var now_year = now.getFullYear();
            //年月日是否合理 
            if (birthday.getFullYear() == year && (birthday.getMonth() + 1) == month && birthday.getDate() == day) {
                //判断年份的范围（3岁到100岁之间) 
                var time = now_year - year;
                if (time >= 0 && time <= 130) {
                    return true;
                }
                return false;
            }
            return false;
        };
        //校验位的检测 
        checkParity = function(obj) {
            //15位转18位 
            obj = changeFivteenToEighteen(obj);
            var len = obj.length;
            if (len == '18') {
                var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
                var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
                var cardTemp = 0,
                    i, valnum;
                for (i = 0; i < 17; i++) {
                    cardTemp += obj.substr(i, 1) * arrInt[i];
                }
                valnum = arrCh[cardTemp % 11];
                if (valnum == obj.substr(17, 1)) {
                    return true;
                }
                return false;
            }
            return false;
        };
        //15位转18位身份证号 
        changeFivteenToEighteen = function(obj) {
            if (obj.length == '15') {
                var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
                var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
                var cardTemp = 0,
                    i;
                obj = obj.substr(0, 6) + '19' + obj.substr(6, obj.length - 6);
                for (i = 0; i < 17; i++) {
                    cardTemp += obj.substr(i, 1) * arrInt[i];
                }
                obj += arrCh[cardTemp % 11];
                return obj;
            }
            return obj;
        };


        result = scCard(key)

        return result;

    };



}));