AWS WAF 图像识别

Amazon AWS WAF 的图形验证码识别。

AWS WAF 会给出一个带扭曲文字的图片，这个类型直接返回文字结果。

请求

POST /v1/captcha/solve?timeout=180
Authorization: Bearer arp_xxx
Content-Type: application/json

请求参数

只传上表列出的参数即可，认证由网关自动处理。

请求示例

{
  "type": "AwsClassification",
  "queries": "iVBORw0KGgoAAAANSUhEUgAAAKAAAAAyCAAAAAD+Co+5AAAA4klEQVR42u3YwRKDIAwEUD7dP6+dnhZKEhCQ1dnc6ET6zCAwSR/ySAIKKODTgQcEfQUZsRkwfSPGYlZtbPyRmZWKaATiOMcSAv1lQAbEX3vW7BZgDzaeq541DRjtBlTA9q2LAIiZ8Qc2FRjjvOVfrywREOdCLCUQx2Vl6YA4/lXUm9CetA23ZKMW8NXAvvPTR866lAko4NXLgoACuk/B7WYMOLIFZ1lHHtMqeB1YiOxz6zagXSP/YF0H/K9R/Bpr229mjbb1B5eIhoB3iPqAG0QBcL/IawEzdoHV5RdQQAEXxwn8FOsjAT8powAAAABJRU5ErkJggg==",
  "question": "Type the characters you see"
}

响应示例

{
  "ok": true, "ready": true, "price": 8, "balance": 872,
  "clicks": [{ "x": 33, "y": 10 }, { "x": 99, "y": 10 }],
  "objects": [true, true, false]
}

完整调用

curl -X POST 'https://api.xiaobaicap.com/v1/captcha/solve?timeout=180' \
  -H "Authorization: Bearer arp_xxx" \
  -H 'Content-Type: application/json' \
  -d '{
         "type": "AwsClassification",
         "queries": "iVBORw0KGgoAAAANSUhEUgAAAKAAAAAyCAAAAAD+Co+5AAAA4klEQVR42u3YwRKDIAwEUD7dP6+dnhZKEhCQ1dnc6ET6zCAwSR/ySAIKKODTgQcEfQUZsRkwfSPGYlZtbPyRmZWKaATiOMcSAv1lQAbEX3vW7BZgDzaeq541DRjtBlTA9q2LAIiZ8Qc2FRjjvOVfrywREOdCLCUQx2Vl6YA4/lXUm9CetA23ZKMW8NXAvvPTR866lAko4NXLgoACuk/B7WYMOLIFZ1lHHtMqeB1YiOxz6zagXSP/YF0H/K9R/Bpr229mjbb1B5eIhoB3iPqAG0QBcL/IawEzdoHV5RdQQAEXxwn8FOsjAT8powAAAABJRU5ErkJggg==",
         "question": "Type the characters you see"
       }'

import requests

r = requests.post(
    "https://api.xiaobaicap.com/v1/captcha/solve",
    headers={"Authorization": "Bearer arp_xxx"},
    params={"timeout": 180},
    json={
  "type": "AwsClassification",
  "queries": "iVBORw0KGgoAAAANSUhEUgAAAKAAAAAyCAAAAAD+Co+5AAAA4klEQVR42u3YwRKDIAwEUD7dP6+dnhZKEhCQ1dnc6ET6zCAwSR/ySAIKKODTgQcEfQUZsRkwfSPGYlZtbPyRmZWKaATiOMcSAv1lQAbEX3vW7BZgDzaeq541DRjtBlTA9q2LAIiZ8Qc2FRjjvOVfrywREOdCLCUQx2Vl6YA4/lXUm9CetA23ZKMW8NXAvvPTR866lAko4NXLgoACuk/B7WYMOLIFZ1lHHtMqeB1YiOxz6zagXSP/YF0H/K9R/Bpr229mjbb1B5eIhoB3iPqAG0QBcL/IawEzdoHV5RdQQAEXxwn8FOsjAT8powAAAABJRU5ErkJggg==",
  "question": "Type the characters you see"
},
    timeout=200,
)
d = r.json()
if not d.get("ok"):
    raise SystemExit(d)
print(d.get("token") or d.get("text") or d.get("objects"))

注意事项

• question 是必填的 —— 这一点和 reCAPTCHA 图像识别不一样，漏了直接报 Empty question。
• 返回里还有 confidences（每格置信度），要自己设阈值时可以用。

错误

失败时返回 502，积分全额退回，可以安全重试：

{"error":"识别失败，已全额退回 10 积分：...","code":"mint_failed"}