2018-08-04 16:26:50 +08:00
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/*********************************************************************
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* 自带过滤器 *
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**********************************************************************/
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var rscripts = /<script[^>]*>([\S\s]*?)<\/script\s*>/gim
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var ron = /\s+(on[^=\s]+)(?:=("[^"]*"|'[^']*'|[^\s>]+))?/g
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var ropen = /<\w+\b(?:(["'])[^"]*?(\1)|[^>])*>/gi
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var rsanitize = {
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a: /\b(href)\=("javascript[^"]*"|'javascript[^']*')/gi,
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img: /\b(src)\=("javascript[^"]*"|'javascript[^']*')/gi,
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form: /\b(action)\=("javascript[^"]*"|'javascript[^']*')/gi
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}
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var rsurrogate = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g
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var rnoalphanumeric = /([^\#-~| |!])/g
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function numberFormat(number, decimals, point, thousands) {
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//form http://phpjs.org/functions/number_format/
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//number 必需,要格式化的数字
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//decimals 可选,规定多少个小数位。
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//point 可选,规定用作小数点的字符串(默认为 . )。
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//thousands 可选,规定用作千位分隔符的字符串(默认为 , ),如果设置了该参数,那么所有其他参数都是必需的。
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number = (number + '').replace(/[^0-9+\-Ee.]/g, '')
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var n = !isFinite(+number) ? 0 : +number,
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prec = !isFinite(+decimals) ? 3 : Math.abs(decimals),
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sep = thousands || ',',
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dec = point || '.',
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s = '',
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toFixedFix = function(n, prec) {
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var k = Math.pow(10, prec)
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return '' + (Math.round(n * k) / k).toFixed(prec)
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}
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// Fix for IE parseFloat(0.55).toFixed(0) = 0;
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s = (prec ? toFixedFix(n, prec) : '' + Math.round(n)).split('.')
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if (s[0].length > 3) {
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s[0] = s[0].replace(/\B(?=(?:\d{3})+(?!\d))/g, sep)
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}
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if ((s[1] || '').length < prec) {
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s[1] = s[1] || ''
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s[1] += new Array(prec - s[1].length + 1).join('0')
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}
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return s.join(dec)
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}
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var filters = (Anot.filters = {
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uppercase: function(str) {
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return str.toUpperCase()
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},
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lowercase: function(str) {
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return str.toLowerCase()
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},
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//字符串截取,超过指定长度以mark标识接上
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truncate: function(str, len, mark) {
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len = len || 30
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mark = typeof mark === 'string' ? mark : '...'
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return str.slice(0, len) + (str.length <= len ? '' : mark)
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},
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//小值秒数转化为 时间格式
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time: function(str) {
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str = str >> 0
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var s = str % 60
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var m = Math.floor(str / 60)
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var h = Math.floor(m / 60)
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m = m % 60
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m = m < 10 ? '0' + m : m
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s = s < 10 ? '0' + s : s
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if (h > 0) {
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h = h < 10 ? '0' + h : h
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return h + ':' + m + ':' + s
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}
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return m + ':' + s
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},
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$filter: function(val) {
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for (var i = 1, n = arguments.length; i < n; i++) {
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var array = arguments[i]
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var fn = Anot.filters[array[0]]
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if (typeof fn === 'function') {
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var arr = [val].concat(array.slice(1))
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val = fn.apply(null, arr)
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}
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}
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return val
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},
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camelize: camelize,
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//https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
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// <a href="javasc
ript:alert('XSS')">chrome</a>
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// <a href="data:text/html;base64, PGltZyBzcmM9eCBvbmVycm9yPWFsZXJ0KDEpPg==">chrome</a>
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// <a href="jav ascript:alert('XSS');">IE67chrome</a>
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// <a href="jav	ascript:alert('XSS');">IE67chrome</a>
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// <a href="jav
ascript:alert('XSS');">IE67chrome</a>
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2019-07-16 11:45:23 +08:00
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xss: function(str) {
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2018-08-04 16:26:50 +08:00
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return str.replace(rscripts, '').replace(ropen, function(a, b) {
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var match = a.toLowerCase().match(/<(\w+)\s/)
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if (match) {
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//处理a标签的href属性,img标签的src属性,form标签的action属性
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var reg = rsanitize[match[1]]
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if (reg) {
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a = a.replace(reg, function(s, name, value) {
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var quote = value.charAt(0)
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return name + '=' + quote + 'javascript:void(0)' + quote // jshint ignore:line
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})
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}
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}
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return a.replace(ron, ' ').replace(/\s+/g, ' ') //移除onXXX事件
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})
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},
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escape: function(str) {
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//将字符串经过 str 转义得到适合在页面中显示的内容, 例如替换 < 为 <
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return String(str)
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.replace(/&/g, '&')
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.replace(rsurrogate, function(value) {
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var hi = value.charCodeAt(0)
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var low = value.charCodeAt(1)
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return '&#' + ((hi - 0xd800) * 0x400 + (low - 0xdc00) + 0x10000) + ';'
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})
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.replace(rnoalphanumeric, function(value) {
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return '&#' + value.charCodeAt(0) + ';'
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})
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.replace(/</g, '<')
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.replace(/>/g, '>')
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},
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currency: function(amount, symbol, fractionSize) {
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return (
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(symbol || '\u00a5') +
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numberFormat(amount, isFinite(fractionSize) ? fractionSize : 2)
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)
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},
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number: numberFormat,
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//日期格式化,类似php的date函数,
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2019-07-16 11:45:23 +08:00
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date: function(stamp, str) {
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var oDate = stamp
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if (!Date.isDate(oDate)) {
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var tmp = +oDate
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if (tmp === tmp) {
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oDate = tmp
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2018-08-04 16:26:50 +08:00
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}
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2019-07-16 11:45:23 +08:00
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oDate = new Date(oDate)
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if (oDate.toString() === 'Invalid Date') {
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2018-08-04 16:26:50 +08:00
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return 'Invalid Date'
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}
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}
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return oDate.format(str)
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}
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})
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