ant.design 圣诞节彩蛋还原分析

@kvkens 2018-12-25 06:03:32发表于 iuap-design/blog

ant.design 圣诞节彩蛋还原分析

具体link以及修复方式:ant-design/ant-design#13849
ant-design/ant-design#13848

现在修复了官网可能看不见了,先看一下tinper-bee还原效果😋
image

技术分析实际很简单,就是通过一个语句判断12月和25号,className设置css。

    const now = new Date();
    const isChristmas = now.getMonth() === 11 && now.getDate() === 25;
...
      [`${prefixCls}-background-ghost`]: ghost,
      [`${prefixCls}-two-chinese-chars`]: hasTwoCNChar,
      [`${prefixCls}-block`]: block,
      christmas: isChristmas,

然后是css

  .christmas&-primary:before {
    content: '';
    display: block;
    position: absolute;
    top: -6px;
    left: 0;
    right: 0;
    background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAE0AAAAXCAYAAABOHMIhAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAABiZJREFUeNrsWMtPlFcUvzPMwIDysLyRR4uATDHWCiVgSmRlios2DeiiXUFs0nRBd6arxqQhJDapkYXhP4BqDKTQhZaFNQSCaBEVJjwdHsNr5DUMDDPDzPT3u7nTDEgRKrKgc5KT+z3uufec33de99P4fD4RpL2RNgjB3kn35MkTeRERESFiYmLkGBoaKnQ6nWSNRvPPZFxr+vv7k6KioiIdDsfa8vLyQkFBgcP3Bnel3MDAQArWI0eFhISE87nb7bZ7PJ4VvLYuLi5O5+fnu9+kMNfq6+tLjIyMzMY6KeBEbK/XarXReI3lPDZMWcc4v7GxYV1dXR3Jy8ub2E5HPvJ6vRSSDH0ku1wuAfsEZOV1IEFHoeNFdHS0yMrK2knR0Lm5uR+hxLdQMjbwHTZbB41h8RGwCdc9MzMzneHh4bGJiYlf4SN8ijkfwqiIncCAAR7Iz2GPSShudjqdfeCeqampvwBQfFxc3JdYqwTv8gB8/F48A8BgKecE14V+L7ju2tpae05OzkuCCZvkPOj8mizmC6vVKtmPu+bx48cC3qI1mUyFUOyywWD4SHlELBaLJmCHNcwAghuAOujtuF4FqHO4nsX4EsAS3I4TJ04ME1h8PDE9PS09TYZoY2Pj1729vd6lpSVfkDYTPG0UkfNDRUWFgQ5Gb2Mh0N29e9eG/GQfHh4W8/PzwUy/ObQ/gMfVVlZW1iAiZdQxp3nv3LljRoL/5erVq1UIxzSiiVD9X4EDYATynCwAzGO858hCQRoaGmJFZNJz8YIcBc4BF966dau6sLAwBxVSJCUlCSThQwuU3W6XkYUok1Vzm5znQx5bbm9v77p+/frPeNSNRzZ/ISBwrG4ZR48eLamtrf2+uLjYSEG9Xi/wTISFhQlWGXohyzO/CJlVl23KQRLbABoaHx+/Z1lUZ/Hq1SsJFj3JT3hmHx8fnydPTEzMj46OziHPW2w22wxeD4Kfgadh/4YEzU8Az4DhffAn5eXlX1y6dKkEoCTspAQ9Mjs7+0BBo8Fms1lkZGTsOo0QLLRNkvnR+fEJzIMHD0xtbW39CL8JTFtSbAOvBIyLHIGVm9VzE2gKuDAMSSpcT6KXyT137lx2cnLyMXhcGDb3wq3XuWF3d/fCzZs3P0c4v5eSknJQbYLo7Ox0gC2lpaVZ3Be67Th/dnZWoAJKsJC3XA8fPhxoamp6hMb+BaaMgWcUMGtszZjiFDNmvcDI91pzG0iY4ARwkwrxkcHBwUdgNrRMbnrqoRbkVzDcvn3bl5qaWsmcgFH4G8XdEGUWFhak51AuISFBnkoCTyFbyWKxCJwIxlC0fq2rq7tcVFRkRKskjh8/Lr0+kBjCCDV/knfdv3//WX19/R8IRRNemxlu4AXwKqM+EJwdj1HbPYSwh3sCPAJDABm2LLchCjS+5/kirKGhwWk0GrMuXrxYQuX9hm/XXTMXMY+srKwI5ApZrbYmZh7deEJhAUKjLe/pLTzSsCuHrK+1tbUJVe3P6upq87Vr174rKysrYHVj/uW+OH3IfEuw4F3ee/fuPQfAvwOs5yyE4CnlFOu7BWrTCWlreO6FACpBZGwUw4BvkANLobReHb3kGZYGsGzTq/zlO8AT1ru6uoZbWlqeA6gINJAfnz59OlVLoX8Jtebm5raampqfcMvQYgTknz9//sKVK1c+y83NTdIEuCnaKMuNGzd+6+np6cCtSTkAw9D9X8Dyh+dbgaaAC1XAnUlPTy+qqqq6cPbs2UzkmWjNljiDJzpwHFnCkW2yo6NjCKW8H54wjlezKvRT09LSTsJrz5w6dSoN+Yp51ADAPUj8VoDbDq9pxrwuJcNIYQllJTIi/xopBw/VA7DJp0+f9hA78CgL5F5C8J2CpoCj8sfA6WCe/FPRhsRlZmbGIs8Y4FFO5CJgtrSsvrRVGW1V93b1myoGnKAKEcHgnwsWpg1lNI0fphwrmdqbckeU18WrnlOjqp5/j7W3BWvfQVPKa5SBkcrYCNVB65TRTlWZ1lXiXVU5xbtlDb2SPaLWYwrgHIcqPg6Vc7fbX69Yoyqfa7/AeiegbWOEVhmsVcWDwPn224iDJgla8Hd38Hd3ELQgaIeI/hZgAIPEp0vmQJdoAAAAAElFTkSuQmCC)
      no-repeat 50% 0;
    background-size: 64px;
    opacity: 1;
  }

  .christmas&-primary&-lg:before {
    background-size: 72px;
  }

  .christmas&-primary&-sm:before {
    background-size: 56px;
  }

这次事件作者出发点我觉得还是好的,毕竟添加了乐趣,也给一些人带来了苦恼,还故意隐瞒了changlog,然后今天大伙就炸了,好多提前回家过年的哈哈,通过这次事件敲响警钟,我们前端用的开源还是有必要花时间看看靠不靠谱,有没有啥机关彩蛋的,哈哈,还学习了一个新词:UI型XSS~ 😋我去写彩蛋了~~


修复过程代码:ant-design/ant-design@d648b82