Angela.string = { //# 字符串 codeHtml: function (content) { //# 转义 HTML 字符 return this.replace(content, { '&': "&" , '"': """ , "'": ''' , '<': "<" , '>': ">" , ' ': " " , '\t': "	" , '(': "(" , ')': ")" , '*': "*" , '+': "+" , ',': "," , '-': "-" , '.': "." , 'https://www.jb51.net/': "/" , '?': "?" , '\\': "\" , '\n': "<br>" }); } //重复字符串 , repeat: function (word, length, end) { //# 重复字符串 end = end || ''; //加在末位 length = ~~length; return new Array(length * 1 + 1).join(word) + '' + end; } //增加前缀 , addPre: function (pre, word, size) { //# 补齐。如给数字前 加 0 pre = pre || '0'; size = parseInt(size) || 0; word = String(word || ''); var length = Math.max(0, size - word.length); return this.repeat(pre, length, word); } //去除两边空格 , trim: function (text) { //# 去除两边空格 return (text || '').replace(/^\s+|\s$/, ''); } //字符串替换 , replace: function (str, re) { //# 字符串替换 str = str || ''; for (var key in re) { replace(key, re[key]); }; function replace(a, b) { var arr = str.split(a); str = arr.join(b); }; return str; } , xss: function (str, type) { //# XSS 转义 //空过滤 if (!str) { return str === 0 ? "0" : ""; } switch (type) { case "html": //过滤html字符串中的XSS return str.replace(/[&'"<>\/\\\-\x00-\x09\x0b-\x0c\x1f\x80-\xff]/g, function (r) { return "&#" + r.charCodeAt(0) + ";" }).replace(/ /g, " ").replace(/\r\n/g, "<br />").replace(/\n/g, "<br />").replace(/\r/g, "<br />"); break; case "htmlEp": //过滤DOM节点属性中的XSS return str.replace(/[&'"<>\/\\\-\x00-\x1f\x80-\xff]/g, function (r) { return "&#" + r.charCodeAt(0) + ";" }); break; case "url": //过滤url return escape(str).replace(/\+/g, "%2B"); break; case "miniUrl": return str.replace(/%/g, "%25"); break; case "script": return str.replace(/[\\"']/g, function (r) { return "\\" + r; }).replace(/%/g, "\\x25").replace(/\n/g, "\\n").replace(/\r/g, "\\r").replace(/\x01/g, "\\x01"); break; case "reg": return str.replace(/[\\\^\$\*\+\?\{\}\.\(\)\[\]]/g, function (a) { return "\\" + a; }); break; default: return escape(str).replace(/[&'"<>\/\\\-\x00-\x09\x0b-\x0c\x1f\x80-\xff]/g, function (r) { return "&#" + r.charCodeAt(0) + ";" }).replace(/ /g, " ").replace(/\r\n/g, "<br />").replace(/\n/g, "<br />").replace(/\r/g, "<br />"); break; } } // badword , 过滤敏感词 //@text : 要过滤的文本 , 类型 ：字符串 //@words : 敏感词 ，类型，数组, 如 ： ['你妹', '我丢' ,'我靠'] // 如果 用 正则匹配， text 长度 100万，words 100万，需要 4秒！ , badWord: function (text, words) { //# 敏感词过滤 text = String(text || ''); words = words || []; var reg = new RegExp(words.join('|'), 'g') , _self = this; return text.replace(reg, function ($0) { var length = String($0 || '').length; return _self.repeat('*', length); }); } };
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