基于vue仿淘寶滑動驗證碼

我們知道驗證碼的目的 是為了驗證到底是人還是機器。
淘寶滑動驗證碼會采集用戶的操作數據,環(huán)境數據等等,通過算法加密成一個字符串,提交到服務器分析,判斷是不是人工在操作。
我這里寫的只是模仿了樣式,并沒有進行那些復雜的操作,所以并不安全(不能判斷人還是機器)。

因為touch事件和mouse事件不同,和獲取clientX在移動端和pc端也不同?。?!所以分兩端

下面有PC端和移動端!?。。?019-03-12更新)

本文基于vue,引入下面組件 可以直接使用
1、實際效果

begin.png
success.png

2、PC端!??! vue組件(下面是一個vue組件,可以引入直接使用)

<template>
    <div class="drag" ref="dragDiv">
        <div class="drag_bg"></div>
        <div class="drag_text">{{confirmWords}}</div>
        <div ref="moveDiv" @mousedown="mousedownFn($event)" :class="{'handler_ok_bg':confirmSuccess}" class="handler handler_bg" style="position: absolute;top: 0px;left: 0px;"></div>
    </div>
</template>

<script>
    export default {
        data(){
            return {
                beginClientX:0,           /*距離屏幕左端距離*/
                mouseMoveStata:false,     /*觸發(fā)拖動狀態(tài)  判斷*/
                maxwidth:'',               /*拖動最大寬度,依據滑塊寬度算出來的*/
                confirmWords:'拖動滑塊驗證',   /*滑塊文字*/
                confirmSuccess:false           /*驗證成功判斷*/
            }
        },
        methods: {
            mousedownFn:function (e) {
                if(!this.confirmSuccess){
                    e.preventDefault && e.preventDefault();   //阻止文字選中等 瀏覽器默認事件
                    this.mouseMoveStata = true;
                    this.beginClientX = e.clientX;
                }
            },        //mousedoen 事件
            successFunction(){
                this.confirmSuccess = true
                this.confirmWords = '驗證通過';
                if(window.addEventListener){
                    document.getElementsByTagName('html')[0].removeEventListener('mousemove',this.mouseMoveFn);
                    document.getElementsByTagName('html')[0].removeEventListener('mouseup',this.moseUpFn);
                }else {
                    document.getElementsByTagName('html')[0].removeEventListener('mouseup',()=>{});
                }
                document.getElementsByClassName('drag_text')[0].style.color = '#fff'
                document.getElementsByClassName('handler')[0].style.left = this.maxwidth + 'px';
                document.getElementsByClassName('drag_bg')[0].style.width = this.maxwidth + 'px';
            },                //驗證成功函數
            mouseMoveFn(e){
                if(this.mouseMoveStata){
                    let width = e.clientX - this.beginClientX;
                    if(width>0 && width<=this.maxwidth){
                        document.getElementsByClassName('handler')[0].style.left = width + 'px';
                        document.getElementsByClassName('drag_bg')[0].style.width = width + 'px';
                    }else if(width>this.maxwidth){
                        this.successFunction();
                    }
                }
            },                   //mousemove事件
            moseUpFn(e){
                this.mouseMoveStata = false;
                var width = e.clientX - this.beginClientX;
                if(width<this.maxwidth){
                    document.getElementsByClassName('handler')[0].style.left = 0 + 'px';
                    document.getElementsByClassName('drag_bg')[0].style.width = 0 + 'px';
                }
            }                       //mouseup事件
        },
        mounted(){
            this.maxwidth = this.$refs.dragDiv.clientWidth - this.$refs.moveDiv.clientWidth;
            document.getElementsByTagName('html')[0].addEventListener('mousemove',this.mouseMoveFn);
            document.getElementsByTagName('html')[0].addEventListener('mouseup',this.moseUpFn)
        }
    }
</script>

<style scoped>
    .drag{
        position: relative;
        background-color: #e8e8e8;
        width: 100%;
        height: 34px;
        line-height: 34px;
        text-align: center;
    }
    .handler{
        width: 40px;
        height: 32px;
        border: 1px solid #ccc;
        cursor: move;
    }
    .handler_bg{
        background: #fff url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAA3hpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDUuNS1jMDIxIDc5LjE1NTc3MiwgMjAxNC8wMS8xMy0xOTo0NDowMCAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wTU09Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC9tbS8iIHhtbG5zOnN0UmVmPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvc1R5cGUvUmVzb3VyY2VSZWYjIiB4bWxuczp4bXA9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC8iIHhtcE1NOk9yaWdpbmFsRG9jdW1lbnRJRD0ieG1wLmRpZDo0ZDhlNWY5My05NmI0LTRlNWQtOGFjYi03ZTY4OGYyMTU2ZTYiIHhtcE1NOkRvY3VtZW50SUQ9InhtcC5kaWQ6NTEyNTVEMURGMkVFMTFFNEI5NDBCMjQ2M0ExMDQ1OUYiIHhtcE1NOkluc3RhbmNlSUQ9InhtcC5paWQ6NTEyNTVEMUNGMkVFMTFFNEI5NDBCMjQ2M0ExMDQ1OUYiIHhtcDpDcmVhdG9yVG9vbD0iQWRvYmUgUGhvdG9zaG9wIENDIDIwMTQgKE1hY2ludG9zaCkiPiA8eG1wTU06RGVyaXZlZEZyb20gc3RSZWY6aW5zdGFuY2VJRD0ieG1wLmlpZDo2MTc5NzNmZS02OTQxLTQyOTYtYTIwNi02NDI2YTNkOWU5YmUiIHN0UmVmOmRvY3VtZW50SUQ9InhtcC5kaWQ6NGQ4ZTVmOTMtOTZiNC00ZTVkLThhY2ItN2U2ODhmMjE1NmU2Ii8+IDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpSREY+IDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8+YiRG4AAAALFJREFUeNpi/P//PwMlgImBQkA9A+bOnfsIiBOxKcInh+yCaCDuByoswaIOpxwjciACFegBqZ1AvBSIS5OTk/8TkmNEjwWgQiUgtQuIjwAxUF3yX3xyGIEIFLwHpKyAWB+I1xGSwxULIGf9A7mQkBwTlhBXAFLHgPgqEAcTkmNCU6AL9d8WII4HOvk3ITkWJAXWUMlOoGQHmsE45ViQ2KuBuASoYC4Wf+OUYxz6mQkgwAAN9mIrUReCXgAAAABJRU5ErkJggg==") no-repeat center;
    }
    .handler_ok_bg{
        background: #fff url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAA3hpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDUuNS1jMDIxIDc5LjE1NTc3MiwgMjAxNC8wMS8xMy0xOTo0NDowMCAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wTU09Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC9tbS8iIHhtbG5zOnN0UmVmPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvc1R5cGUvUmVzb3VyY2VSZWYjIiB4bWxuczp4bXA9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC8iIHhtcE1NOk9yaWdpbmFsRG9jdW1lbnRJRD0ieG1wLmRpZDo0ZDhlNWY5My05NmI0LTRlNWQtOGFjYi03ZTY4OGYyMTU2ZTYiIHhtcE1NOkRvY3VtZW50SUQ9InhtcC5kaWQ6NDlBRDI3NjVGMkQ2MTFFNEI5NDBCMjQ2M0ExMDQ1OUYiIHhtcE1NOkluc3RhbmNlSUQ9InhtcC5paWQ6NDlBRDI3NjRGMkQ2MTFFNEI5NDBCMjQ2M0ExMDQ1OUYiIHhtcDpDcmVhdG9yVG9vbD0iQWRvYmUgUGhvdG9zaG9wIENDIDIwMTQgKE1hY2ludG9zaCkiPiA8eG1wTU06RGVyaXZlZEZyb20gc3RSZWY6aW5zdGFuY2VJRD0ieG1wLmlpZDphNWEzMWNhMC1hYmViLTQxNWEtYTEwZS04Y2U5NzRlN2Q4YTEiIHN0UmVmOmRvY3VtZW50SUQ9InhtcC5kaWQ6NGQ4ZTVmOTMtOTZiNC00ZTVkLThhY2ItN2U2ODhmMjE1NmU2Ii8+IDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpSREY+IDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8+k+sHwwAAASZJREFUeNpi/P//PwMyKD8uZw+kUoDYEYgloMIvgHg/EM/ptHx0EFk9I8wAoEZ+IDUPiIMY8IN1QJwENOgj3ACo5gNAbMBAHLgAxA4gQ5igAnNJ0MwAVTsX7IKyY7L2UNuJAf+AmAmJ78AEDTBiwGYg5gbifCSxFCZoaBMCy4A4GOjnH0D6DpK4IxNSVIHAfSDOAeLraJrjgJp/AwPbHMhejiQnwYRmUzNQ4VQgDQqXK0ia/0I17wJiPmQNTNBEAgMlQIWiQA2vgWw7QppBekGxsAjIiEUSBNnsBDWEAY9mEFgMMgBk00E0iZtA7AHEctDQ58MRuA6wlLgGFMoMpIG1QFeGwAIxGZo8GUhIysmwQGSAZgwHaEZhICIzOaBkJkqyM0CAAQDGx279Jf50AAAAAABJRU5ErkJggg==") no-repeat center;
    }
    .drag_bg{
        background-color: #7ac23c;
        height: 34px;
        width: 0px;
    }
    .drag_text{
        position: absolute;
        top: 0px;
        width: 100%;text-align: center;
        -moz-user-select: none;
        -webkit-user-select: none;
        user-select: none;
        -o-user-select:none;
        -ms-user-select:none;
    }
</style>

3、移動端?。?! vue組件(下面是一個vue組件,可以引入直接使用)

<template>
    <div class="drag" ref="dragDiv">
        <div class="drag_bg"></div>
        <div class="drag_text">{{confirmWords}}</div>
        <div ref="moveDiv" @touchstart="mousedownFn($event)" :class="{'handler_ok_bg':confirmSuccess}" class="handler handler_bg" style="position: absolute;top: 0px;left: 0px;"></div>
    </div>
</template>

<script>
    export default {
        data(){
            return {
                beginClientX:0,           /*距離屏幕左端距離*/
                mouseMoveStata:false,     /*觸發(fā)拖動狀態(tài)  判斷*/
                maxwidth:'',               /*拖動最大寬度,依據滑塊寬度算出來的*/
                confirmWords:'拖動滑塊驗證',   /*滑塊文字*/
                confirmSuccess:false           /*驗證成功判斷*/
            }
        },
        methods: {
            mousedownFn:function (e) {
                if(!this.confirmSuccess){
                    e.preventDefault && e.preventDefault();   //阻止文字選中等 瀏覽器默認事件
                    this.mouseMoveStata = true;
                    this.beginClientX = e.changedTouches[0].clientX;
                }
            },        //mousedoen 事件
            successFunction(){
                this.confirmSuccess = true
                this.confirmWords = '驗證通過';
                if(window.addEventListener){
                    document.getElementsByTagName('html')[0].removeEventListener('touchmove',this.mouseMoveFn);
                    document.getElementsByTagName('html')[0].removeEventListener('touchend',this.moseUpFn);
                }else {
                    document.getElementsByTagName('html')[0].removeEventListener('touchend',()=>{});
                }
                document.getElementsByClassName('drag_text')[0].style.color = '#fff'
                document.getElementsByClassName('handler')[0].style.left = this.maxwidth + 'px';
                document.getElementsByClassName('drag_bg')[0].style.width = this.maxwidth + 'px';
            },                //驗證成功函數
            mouseMoveFn(e){
                if(this.mouseMoveStata){
                    let width = e.changedTouches[0].clientX - this.beginClientX;
                    if(width>0 && width<=this.maxwidth){
                        document.getElementsByClassName('handler')[0].style.left = width + 'px';
                        document.getElementsByClassName('drag_bg')[0].style.width = width + 'px';
                    }else if(width>this.maxwidth){
                        this.successFunction();
                    }
                }
            },                   //mousemove事件
            moseUpFn(e){
                this.mouseMoveStata = false;
                var width = e.changedTouches[0].clientX - this.beginClientX;
                if(width<this.maxwidth){
                    document.getElementsByClassName('handler')[0].style.left = 0 + 'px';
                    document.getElementsByClassName('drag_bg')[0].style.width = 0 + 'px';
                }
            }                       //mouseup事件
        },
        mounted(){
            this.maxwidth = this.$refs.dragDiv.clientWidth - this.$refs.moveDiv.clientWidth;
            document.getElementsByTagName('html')[0].addEventListener('touchmove',this.mouseMoveFn);
            document.getElementsByTagName('html')[0].addEventListener('touchend',this.moseUpFn)
        }
    }
</script>

<style scoped>
    .drag{
        position: relative;
        background-color: #e8e8e8;
        width: 100%;
        height: 34px;
        line-height: 34px;
        text-align: center;
    }
    .handler{
        width: 40px;
        height: 32px;
        border: 1px solid #ccc;
        cursor: move;
    }
    .handler_bg{
        background: #fff url("data:image/png;base64,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") no-repeat center;
    }
    .handler_ok_bg{
        background: #fff url("data:image/png;base64,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") no-repeat center;
    }
    .drag_bg{
        background-color: #7ac23c;
        height: 34px;
        width: 0px;
    }
    .drag_text{
        position: absolute;
        top: 0px;
        width: 100%;text-align: center;
        -moz-user-select: none;
        -webkit-user-select: none;
        user-select: none;
        -o-user-select:none;
        -ms-user-select:none;
    }
</style>
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