uniapp、vue实现滑动拼图验证码

uniapp、vue实现滑动拼图验证码

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实际开发工作中，在登陆的时候需要短信验证码，但容易引起爬虫行为，需要用到反爬虫验证码，今天介绍一下拼图验证码，解决验证码反爬虫中的滑动验证码反爬虫。滑动拼图验证码是在滑块验证码的基础上增加了一个随机滑动距离，用户需要将滑块滑到拼图的缺口处，使拼图完整，才能通过校验。平台兼容性，H5、微信小程序、字节、百度、qq等。

实际开发工作中，在登陆的时候需要短信验证码，但容易引起爬虫行为，需要用到反爬虫验证码，今天介绍一下拼图验证码，解决验证码反爬虫中的滑动验证码反爬虫。
原理
滑动拼图验证码是在滑块验证码的基础上增加了一个随机滑动距离，用户需要将滑块滑到拼图的缺口处，使拼图完整，才能通过校验。

一、不对接口版本

平台兼容性，H5、微信小程序、字节、百度
XXX.vue文件引入
template标签中引入

<slider-verify :isShow="sliderVerifyFLag" @touchSliderResult="verifyResult" ref="verifyElement"></slider-verify>

script标签中引入组件

import sliderVerify from '@/components/slider-verify/slider-verify.vue';//组件存放的路径export default {components: {'slider-verify': sliderVerify},data() {return {sliderVerifyFLag: false //滑块验证};},onLoad() {},methods: {// 滑块验证结果回调函数verifyResult(res) {this.sliderVerifyFLag = false;if (res) {  //校验通过}else{// 校验失败,点击关闭按钮}}}
};

slider-verify.vue文件代码

<template><view class="slider-verify-box" v-if="isShow"><view class="verifyBox"><view class="slider-title">图形验证</view><view class="slide-content"><view class="slide-tips">拖动下方滑块完成拼图</view><view class="slider-pintu"><image id="pintuImg" :src="'/static/images/slider-verify/' + img + '.jpg'" class="pintu"></image><view class="pintukuai" :style="{ top: top + 'px', left: oldx + 'px' }"><image :src="'/static/images/slider-verify/' + img + '.jpg'" :style="{ top: '-' + top + 'px', left: '-' + left + 'px'}"></image></view><view class="yinying" :style="{ top: top + 'px', left: left + 'px' }"></view></view><view class="slider-movearea" @touchend="endTouchMove"><movable-area :animation="true"><movable-view :x="x" direction="horizontal" @change="startMove"></movable-view></movable-area><view class="huadao">拖动左边滑块完成上方拼图</view></view></view><view class="slider-btn-group"><view class="slider-btn" @tap="closeSlider">关闭</view><view class="slider-btn slide-btn-refresh" @tap="refreshVerify">刷新</view></view></view></view>
</template><script>
export default {name: 'slider-verify',props: {isShow: true},data() {return {x: 0, //初始距离oldx: 0, //移动的距离img: '1', //显示哪张图片left: 0, //随机拼图的最终X轴距离top: 0, //拼图的top距离};},watch: {// 每次打开重新刷新拼图isShow(newValue, oldValue) {if(newValue){this.refreshVerify();	//刷新}}},mounted() {var that = this;that.refreshVerify();},methods: {//刷新验证refreshVerify() {var gl = Math.random().toFixed(2);this.left = uni.upx2px(560) * gl > uni.upx2px(280) ? uni.upx2px(280) : uni.upx2px(560) * gl + uni.upx2px(150); //生成随机X轴最终距离this.top = uni.upx2px(190) * gl; //生成随机Y轴初始距离if (gl <= 0.2) {this.img = 1;}if (gl > 0.2 && gl <= 0.4) {this.img = 2;}if (gl > 0.4 && gl <= 0.6) {this.img = 3;}if (gl > 0.6 && gl <= 0.8) {this.img = 4;}if (gl > 0.8 && gl <= 1) {this.img = 5;}this.resetMove();	//重置阴影位置},/* 滑动中 */startMove(e) {this.oldx = e.detail.x;},/* 滑动结束 */endTouchMove() {var that = this;if (Math.abs(that.oldx - that.left) <= 5) {uni.showToast({title: '验证成功',duration: 2500,success() {that.$emit('touchSliderResult', true);}});} else {that.refreshVerify();}},/* 重置阴影位置 */resetMove() {this.x = 1;this.oldx = 1;setTimeout(() => {this.x = 0;this.oldx = 0;}, 300);},// 关闭closeSlider(){this.$emit('touchSliderResult', false);}	}
};
</script><style lang="less">
.slider-verify-box {position: fixed;top: 0;left: 0;width: 100%;height: 100%;background-color: rgba(0, 0, 0, 0.5);z-index: 999;
}
.verifyBox {position: absolute;top: 50%;left: 50%;transform: translate(-50%, -50%);// width: 85%;background-color: #fff;border-radius: 20upx;box-shadow: 0 0 5upx rgba(0, 0, 0);.slider-title {font-size: 36upx;text-align: center;padding: 1em 0;color: rgba(2, 20, 33, 0.85);border-bottom: 1px solid rgba(2, 20, 33, 0.15);}.slide-content {width: 560rpx;padding: 0 1em;margin: 0 auto;.slide-tips {font-size: 28rpx;color: rgba(2, 20, 33, 0.45);padding: 0.5em 0;}.slider-pintu {position: relative;width: 100%;border-radius: 10rpx;overflow: hidden;.pintu {width: 560rpx;height: 315rpx;display: block;margin: 0 auto;}.pintukuai {position: absolute;top: 0;left: 0;width: 120rpx;height: 120rpx;z-index: 100;box-shadow: 0 0 5upx rgba(0, 0, 0, 0.3);overflow: hidden;image {display: block;position: absolute;top: 0;left: 0;width: 560rpx;height: 315rpx;}}}.yinying {position: absolute;width: 120rpx;height: 120rpx;background-color: rgba(0, 0, 0, 0.5);}}
}.slider-movearea {position: relative;height: 80upx;width: 100%;margin: 25upx auto;movable-area {height: 80upx;width: 100%;movable-view {width: 80upx;height: 80upx;border-radius: 50%;background-color: #007cff;background-image: url(../../static/images/slider-verify/icon-button-normal.png);background-repeat: no-repeat;background-size: auto 30upx;background-position: center;position: relative;z-index: 100;}}
}.huadao {width: 100%;height: 66upx;line-height: 66upx;background: #eee;box-shadow: inset 0 0 5upx #ccc;border-radius: 40rpx;color: #999;text-align: center;box-sizing: border-box;position: absolute;top: 7rpx;left: 0;font-size: 28rpx;z-index: 99;
}.slider-btn-group{width: 100%;display: flex;justify-content: center;align-items: center;border-top: 1px solid rgba(2, 20, 33, 0.15);.slider-btn{flex: 1;height: 100rpx;line-height: 100rpx;text-align: center;font-size: 36rpx;color:rgba(2,20,33,0.85);&:active{opacity: 0.8;}}.slide-btn-refresh{color:rgba(14,107,176,1);border-left: 1px solid rgba(2, 20, 33, 0.15);}	
}
</style>

二、对接口版本

平台兼容性，H5、微信小程序、字节、百度、qq等
XXX.vue文件引入
template标签中引入

<view @tap="getCode()" >获取验证码</view>
<validationPT class="setVef" ref="vefCode" @VefCodeTrue="getVefCodeTrue" :inputPhone="mobile" theme="dialog"></validationPT>

script标签中引入组件

import validationPT from '@/components/validationPT/validationPT.vue'export default {components: {'slider-verify': sliderVerify},data() {},onLoad() {},methods: {// 效验手机号getCode() {this.getCodePT();},//获取弹窗getCodePT(msg) {this.$refs.vefCode.GetSlideBlockApi(); //调用图片接口，获取验证图片this.$refs.vefCode.clkOpenRef(); //验证通过，打开拼图验证this.$refs.vefCode.initial();//重置},// 滑块验证结果回调函数//拼图验证是否成功getVefCodeTrue(msg) {this.VefInfosBk = msg;if (msg.Res == true) {//获取验证码} },}
};

validationPT.vue文件代码

<template><view :class="[{'frame--dialog':theme}]"><view class="frameBg" v-show="showModal" style="z-index:10"></view><view class="framework" v-if="isVefCode"><view class="boxTopTitle"><text>图形验证码</text><text class="cuIcon-close font16 fontB" @click="clkCloseRef"></text></view><view class="boxImg"><view class="cutImgSet" :class="isAnimation?'animation':''":style="{top:CutImgY+'px', left: blockLeft + 'px'}"><image :src="CutImg" style="cursor:pointer; width: 40px;height: 40px;z-index: 10;"></image></view><image :src="BGImg" style="border-radius:8px; width: 300px;height: 150px;"></image><view class="reset" @click="clkNext"><text class="cuIcon-refresh font16 text-white"></text></view></view><view class="checkBox"><view class="checkBar"><view class="slide" :class="bgColSet?'active':''"><view :class="'moveBac '+(isAnimation?' animation':'')+(bgColSet?' moveBacError':'')":style="'width:'+(isSuccess ? 300 : blockLeft)+'px;'"></view><view :class="(bgColSet?'swiperTipsError':'swiperTips') + (!isSuccess?' paddingL40':'')"><text v-if="!isSuccess">请拖动滑块验证</text><text v-if="isSuccess" class="cuIcon-check margin-right-sm fontB"></text><text v-if="isSuccess">验证成功</text></view><view v-if="!isSuccess":class="'swiperBlock '+(bgColSet?' errorBlock':' successBlock')+(isAnimation?' animation':'') ":style="'left:'+blockLeft+'px'" ref="sliderBtn" @touchstart="touchstartHandle"@mousedown="startMove" @touchmove.stop.prevent="touchmoveHandle"@touchend="touchendHandle"><!-- #ifndef MP-BAIDU --><image v-if="!bgColSet" :src="ImgUrl + 'Images/doubleArrow.svg'" mode="widthFix"style="width: 16px;"></image><text v-else class="cuIcon-close font16 text-white"></text><!-- #endif --><!-- #ifdef MP-BAIDU --><text v-if="bgColSet" class="cuIcon-close font16 text-white"></text><!-- #endif --></view></view></view></view></view></view>
</template>
<script>export default {props: {inputPhone: '',theme: {type: String,},swiperColor: {type: String,default: 'rgba(21, 132, 223, 0.08)'},title: {type: String,default: '人机校验'},barWidth: {type: Number,default: 300}},data() {return {ImgUrl: this.hostwapUrl,BGImg: '',CutImg: '',CutImgY: '',MarkCode: '', //验证拼图是否成功用,bgColSet: false, //拼图是否验证成功isSuccess: false, //是否验证成功isVefCode: false,showModal: false,startInfo: {},blockLeft: 0,//随机拼图的最终X轴距离isAnimation: false,msgType: '',}},computed: {trueMoveableW: function() {return this.barWidth - 40}},methods: {//获取图片接口GetSlideBlockApi() {let that = this;uni.request({url: url,//获取拼图接口data: data,//需要传给接口的参数headers: {Accept: "application/json; charset=utf-8"},dataType: 'json',method: 'GET',success: (res) => {this.BGImg = '';//大图this.CutImg = '';//拼图this.CutImgY = 0;//接口位置},complete: () => {}})},//手指按下touchstartHandle({changedTouches}) {if (this.isSuccess) {return}this.isAnimation = falsethis.startInfo = changedTouches[0]},// 手指移动touchmoveHandle({changedTouches}) {if (this.isSuccess) {return}let blockLeft = changedTouches[0].clientX - this.startInfo.clientXlet blockLeftRpx = blockLeft;if (blockLeftRpx < 0) {this.blockLeft = 0} else {this.blockLeft = blockLeftRpx <= this.trueMoveableW ? blockLeftRpx : this.trueMoveableW}},// 手指离开touchendHandle(e) {if (this.isSuccess) {return}this.CheckSlideBlockApi();},//验证图片接口CheckSlideBlockApi() {let that = this;uni.request({url: url,//接口名称data: data,//接口需要的参数headers: {Accept: "application/json; charset=utf-8"},dataType: 'json',method: 'POST',success: (res) => {let infos = {}if (res.data.IsOK == true) {//成功that.isSuccess = true;infos = {Res: res.data.Results,};//返回传给父组件的值，判断是否成功setTimeout(() => {that.bgColSet = false;that.$emit('VefCodeTrue', infos)that.isVefCode = false;that.showModal = false;}, 1000);} else {that.bgColSet = true;that.isSuccess = false;that.GetSlideBlockApi();that.isAnimation = truelet timeid = setTimeout(() => {clearTimeout(timeid)that.isAnimation = falsethat.bgColSet = false;}, 500)that.blockLeft = 0;}},complete: () => {}})},/* 鼠标按住滑块后初始化移动监听，记录初始位置 */startMove(e) {e.preventDefault() //禁止图片img拖动的解决方法e = e || window.event;this.moveStart = e.pageX || e.targetTouches[0].pageX;this.addMouseMoveListener();},/* 鼠标滑块移动 */moving(e) {// e.preventDefault() //禁止图片img拖动的解决方法let self = this;e = e || window.event;let moveX = (e.pageX || e.targetTouches[0].pageX);let d = moveX - self.moveStart;let w = self.dataWidth;let PL_Size = this.puzzleSize;let padding = this.padding;if (self.moveStart === "") {return "";}if (d < 0 || d > w - padding - PL_Size) {return "";}if (d <= 260) {self.blockLeft = d}},/* 鼠标移动结束，验证并回调 */moveEnd(e) {let self = this;e = e || window.event;let moveEnd_X = (e.pageX || e.changedTouches[0].pageX) - self.moveStart;if (moveEnd_X > 0) {self.CheckSlideBlockApi(); //验证拼图是否成功}self.moveStart = "";document.removeEventListener("mousemove", self.moving);document.removeEventListener("mouseup", self.moveEnd);},/* 鼠标全局绑定滑块移动与滑动结束，移动过程中鼠标可在页面任何位置 */addMouseMoveListener() {let self = this;document.addEventListener("mousemove", self.moving);document.addEventListener("mouseup", self.moveEnd);},//换一张clkNext() {this.GetSlideBlockApi();},// 重置滑块位置initial() {this.blockLeft = 0;this.bgColSet = false;this.isSuccess = false;},clkCloseRef() {this.showModal = false;this.isVefCode = false;},clkOpenRef(msg) {this.showModal = true;this.isVefCode = true;},}}
</script>
<style lang="scss" type="text/css" rel="stylesheet" scoped="scoped">.framework {box-sizing: border-box;width: 332px;height: 270px;background: #fff;margin: 24px auto;z-index: 11;position: relative;padding: 0 16px;user-select: none;border-radius: 16px;}.framework .boxTopTitle {height: 48px;line-height: 48px;display: flex;justify-content: space-between;}.framework .boxImg {width: 300px;height: 150px;background: #fff;margin-bottom: 16px;border-radius: 8px;position: relative;}.reset {position: absolute;top: 0;right: 0;background-color: rgba(0, 0, 0, 0.24);border-radius: 0 8px 0 8px;padding: 0 12px;line-height: 32px;}.cutImgSet {position: absolute;}.frame--dialog {.framework {// margin: 38vh auto;z-index: 88888888;position: fixed;// top: 25vh;transform: translateX(-50%);left: 50%;}.frameBg {position: fixed;top: 0;left: 0;width: 100%;height: 100%;background-color: rgba(0, 0, 0, 0.24);z-index: 8887 !important;}}.checkBox .checkBar {width: 100%;padding: 0px;}.slide {box-sizing: border-box;width: 100%;height: 40px;line-height: 40px;border-radius: 8px;background-color: #FFFFFF;position: relative;font-size: 13px;overflow: hidden;border: 1px solid rgba(65, 157, 231, 0.56);}.slide.active {border: 1px solid #FA7F7F;}.moveBac {background-color: rgba(21, 132, 223, 0.08);width: 100%;height: 100%;}.moveBacError {background-color: rgba(216, 63, 63, 0.08) !important;}.swiperTips {box-sizing: border-box;position: absolute;left: 0;top: 0;width: 100%;color: rgba(255, 255, 255, 0.24);text-align: center;background: -webkit-gradient(linear, left top, right top, color-stop(0, #0076D6), color-stop(.4, #0076D6), color-stop(.5, #fff), color-stop(.6, #0076D6), color-stop(1, #0076D6));animation: tipsBlinkan 3s infinite;-webkit-background-clip: text;-webkit-text-fill-color: transparent;line-height: 40px;}.swiperTipsError {box-sizing: border-box;position: absolute;left: 0;top: 0;width: 100%;text-align: center;color: rgba(255, 255, 255, 0.24);background: -webkit-gradient(linear, left top, right top, color-stop(0, #FA7F7F), color-stop(.4, #FA7F7F), color-stop(.5, #fff), color-stop(.6, #FA7F7F), color-stop(1, #FA7F7F));animation: tipsBlinkan 3s infinite;-webkit-background-clip: text;-webkit-text-fill-color: transparent;line-height: 40px;}.swiperBlock {width: 40px;height: 40px;border-radius: 8px;/* #ifdef MP-BAIDU */background-repeat: no-repeat;background-size: 16px;background-position: center;/* #endif */display: flex;justify-content: center;align-items: center;position: absolute;left: 0px;top: -1px;}.successBlock {background-color: #0076D6;/* #ifdef MP-BAIDU */background-image: url('https://m.by56.com/Images/doubleArrow.svg');/* #endif */}.errorBlock {background-color: #FA7F7F !important;}.paddingL40 {padding-left: 40px;}.animation {transition: all 0.5s;}@keyframes tipsBlinkan {0% {background-position: -100px 0;}100% {background-position: 100px 0;}}
</style>