我們使用隱形reCAPTCHA的,一旦在一段時間,谷歌的Javascript代碼,使接收響應狀態410到谷歌的服務器的請求,而不是200隱形谷歌驗證碼驗證時用戶的輸入
我們唐返回410由於Google的reCaptcha Javascript代碼正在提出請求,因此無法控制它。
如果挑戰已經呈現給用戶,下面是失敗的請求是什麼樣子的例子:
GET https://www.google.com/recaptcha/api2/payload?c=03AOPBWq_EYB...
和響應是:
HTTP/1.1 410 Gone
<HTML>
<HEAD>
<TITLE>Gone</TITLE>
</HEAD>
<BODY BGCOLOR="#FFFFFF" TEXT="#000000">
<H1>Gone</H1>
<H2>Error 410</H2>
</BODY>
</HTML>
它失敗約10 % 的時間。下面是一個HTTP請求的 「歷史」:
請求#1
POST https://www.google.com/recaptcha/api2/reload?k=6LcqZCEU...
v:r20170515161201
reason:fi
bcr:[1943341955,-150...
...
HTTP/1.1 200 OK
content-type: application/json
...
)]}'
["rresp","03AOPBWq_EYBOYkGkn-1S...",null,600,["pmeta",null,null,null,
null,[[["TileSelectionStreetSign",null,3,4,4,null,null,[]
]
,["dress",null,3,4,4,null,null,[]
]
]
,[]
]
]
,"multicaptcha",null,
["bgdata","Ly93d3cuWk5rOHFMZDlvNDZFa..."]
]
上述反應看起來像無效JSON但預計詳細的here
請求#2
GET https://www.google.com/recaptcha/api2/payload?c=03AOPBWq_EYBOYk...
...
HTTP/1.1 200 OK
content-type: image/jpeg
content-length: 50528
...
<JPEG>
請求#3
POST https://www.google.com/recaptcha/api2/replaceimage?k=6LcqZCEUAA...
v:r20170515161201
c:03AOPBWq_EYBOYkGkn-1SplFL...
ds:[[5,6,9,10,13,14]]
HTTP/1.1 200 OK
content-type: application/json
...
)]}'
["dresp","03AOPBWq-Iyck5GCpx86hk57XSxF-9b4GMaDeujP...",[]
,null,[]
]
請求#4(失敗的一個)
GET https://www.google.com/recaptcha/api2/payload?c=03AOPBWq_EYBOYk...
...
HTTP/1.1 410 Gone
content-type: text/html
...
<HTML>
<HEAD>
<TITLE>Gone</TITLE>
</HEAD>
<BODY BGCOLOR="#FFFFFF" TEXT="#000000">
<H1>Gone</H1>
<H2>Error 410</H2>
</BODY>
</HTML>
就撞到這個... – DomLip