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reCaptcha无效的json响应

  •  4
  • Andrei Demian  · 技术社区  · 9 年前

    使用recaptcha javascript客户端( http://www.google.com/recaptcha/api.js?onload=vcRecaptchaApiLoaded&render=explicit )自动请求(GET https://www.google.com/recaptcha/api2/userverify?k=XXXXXXXXX )选择正确的图像后,将返回一个无效的json,然后将其发送回google,json验证失败。几个月来,这一切都如期进行。不再是:(

    服务器端库使用reCaptcha PHP(1.1)

    回答

    )]}'
    ["uvresp","03AHJ_Vuup5SJJ583dSIfezFl80dp2AlJ_rZpz3vqGWlOTmbjZqH8izwjruJASNhQI0tOOnmj2Pzg14xMw7dryeqVfTGhx6dg_x2i0PRA1ZeDyrBNn8DX-w5S262Zb3_ZWKj5JDBiqPVnXtNLGbyBxjd97VHanspJWU_-qKWLSWVKxLK6n3lm9Biw33oUCEiGA39GNa09Z6TSAEtnolQCf_LPPRWKoE_e50f2s5ZpUVG5GNVdX7qGBRwphTgcUhwOjA8uYTzmA9co3Jwk2KR5UQ0zzVRJzRZZTBuK9km3PE1WV05ACAwrJi29niDpVaRmpooAnIkHNgGyGBu7u3W7gU6YAHtwya8PYhdF__G_MMG8XpVFDTBa196hKD6hxw-E2PsxmoIQJrU1K89mmzNIh-xLNQ7KJvrBMzVf8A5FHyUQgL5UNDWVwSkWCdC_3swxBzi7R3p8VIrUtkIqJFA_GSAxy0cBRJ8J55Pfs5rzhfR8j-x1hGCzi_6vJrbrwfNesoLEB7GWJtElcljhBYvcDNzU_B_VJ7Sck-6i1Nd0qdmtSiCRZYNyaZ8uGLoDdNgCY-0Oi4802AlI26H7TjGBcKnr4gmaHXTNRf1W7x_3FV05DxVsTqeAlo8zGqmiVqcgmX64BbLK4fD9Xoait1_Lp5vK26fCaOQmGKF7CJaYPuxnX-zXgSkfZDCG6rs6xv1CfZQnIKD0W3Yz522VD4YdNfATb3FywhFWbZuxoBIt6vslZDlPXh2MYOkAmYfIPIo8WoWazMoLI_8iNBZPiMlRL0PS5aQiLSrvbf-sknMHhfM2MJYsfrQjC52aDRaHYdcZbY6Wxlhw0tQEknX8B47_DAQzCKkpoFsecO1eMHuInIykZ1l7TOdZMytI-NzGg21KeKAE8dK6ZWee0UEqDJvCkj5aH5TQcBA--ygbOS186bAptUP5n6WvORx1Nb2ZU_AF9fB23PJWH1xvB4gZoNDvhLmdpkE1Po9Lyim1P61E2rrgYjWgPRwT4jUo",1,120]
    

    有什么想法吗? 谢谢

    1 回复  |  直到 9 年前
        1
  •  3
  •   Neithan Max    6 年前

    我想这是 https://stackoverflow.com/a/36862268/2140017

    下面是我从这个链接中得到的答案:

    实际上,返回的值不是有效的json,但已被 谷歌的API。

    这是一种保护吗?我不知道,但如果你看看javascript, 您可以发现:

    var jm=function(a,b,c,d,e,g,h,l,r){this.xl=a;this.$c=c||"GET";this.Ka=d;this.Gg=e||null;this.Td=m(h)?h:1;this.ye=0;this.xh=this.Nh=!1;this.uh=b;this.Mh=g;this.md=l||"";this.Zb=!!r;this.Wf=null};f=jm.prototype;f.getUrl=function(){return this.xl};f.ug=function(){return this.$c};f.Ca=function(){return this.Ka};f.fi=function(){return this.Zb};f.bi=function(){return this.md};var nm=function(){G.call(this);this.nj=new hm(0,mm,1,10,5E3);H(this,this.nj);this.ad=0};x(nm,G);var mm=new Nh;nm.prototype.send=function(a){return new Lc(function(b,c){var d=String(this.ad++);this.nj.send(d,a.Uf.toString(),a.ug(),a.Ca(),mm,void 0,u(function(a,d){var h=d.target;if(Xk(h)){var l=a.ml;h.B?(h=h.B.responseText,0==h.indexOf(")]}'\n")&&(h=h.substring(5)),h=Hg(h)):h=void 0;b(new l(h))}else c(new om(a))},this,a))},this)};var om=function(a){y.call(this);this.request=a};x(om,y);
    

    特别是看看:

    var l=a.ml;h.B?(h=h.B.responseText,0==h.indexOf(")]}'\n")&&(h=h.substring(5)),h=Hg(h)):h=void 0;`
    

    解析器明确检查值是否以 )]} 和条带 它

    我建议您在 “json” 一串