guoyao-jiankang/public/camera/lib/utils.js

export default {
    /**
     * @method guid() 生成uuid
     */
     guid: () => {
        function s4() {
            return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);
        }
        return (s4() + s4() + "-" + s4() + "-" + s4() + "-" + s4() + "-" + s4() + s4() + s4())
    },
    // 节流函数
    throttle(fn, delay) {
        let timer = null;
        return function () {
            if (timer) {
            return;
            }
            timer = setTimeout(() => {
            fn.apply(this, arguments);
            timer = null;
            }, delay);
        };
    },
    HTMLDecode(text) {
        // let obj = {
        //     '&lt;': '<',
        //     '&gt;': '>',
        //     '&quot;': '"',
        //     '&amp;': "&",
        //     "&#39;": "'"
        // }
        // for(let [key,value] of Object.entries(obj)) {
        //     text = text.replace(new RegExp(key,'g'), value)
        // }
        // return text
        let temp = document.createElement("div")
        temp.innerHTML = text
        let output = temp.innerText || temp.textContent
        temp = null
        return output
    },
    //AES encode
    rEncode(key, str) {
        if (!str) return ''
        let key1 = CryptoJS.enc.Utf8.parse(key)
        let e = CryptoJS.AES.encrypt(str, key1, { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.Pkcs7 })
        return e.ciphertext.toString()
    },
    //AES decode
    rDecode(key, rStr) {
        if (!rStr) return ''
        let key1 = CryptoJS.enc.Utf8.parse(key)
        let a = CryptoJS.enc.Hex.parse(rStr)
        let b = CryptoJS.enc.Base64.stringify(a)
        let c = CryptoJS.AES.decrypt(b, key1, { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.Pkcs7 })
        return c.toString(CryptoJS.enc.Utf8)
    },
    //des encode
    rEncodeDes(key, str) {
        if (!str) return ''
        let key1 = CryptoJS.enc.Utf8.parse(key)
        let e = CryptoJS.DES.encrypt(str, key1, { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.Pkcs7 })
        return e.ciphertext.toString()
    },
    //DES decode
    rDecodeDes(key, rStr) {
        if (!rStr) return ''
        let key1 = CryptoJS.enc.Utf8.parse(key)
        let a = CryptoJS.enc.Hex.parse(rStr)
        let b = CryptoJS.enc.Base64.stringify(a)
        let c = CryptoJS.DES.decrypt(b, key1, { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.Pkcs7 })
        return c.toString(CryptoJS.enc.Utf8)
    },
    /**
     * @method decodeObj 对编码后的特殊字符进行解码
    */
    decodeObj(obj) {
        if (typeof obj == 'string') {
            return this.HTMLDecode(obj)
        } else if (typeof obj == 'object' && !(obj instanceof Array) && obj != null) {
            //object
            let temp = {}
            for (let [key, value] of Object.entries(obj)) {
                temp[key] = this.decodeObj(value)
            }
            return temp
        } else if (typeof obj == 'object' && obj instanceof Array) {
            // array
            return obj.map(item => {
                return this.decodeObj(item)
            })
        } else {
            return obj
        }
    },
}