非常入门级别的，刺猬猫免费章节JS解密

相关章节请求：
https://www.ciweimao.com/chapter/ajax_get_session_code
再
https://www.ciweimao.com/chapter/get_book_chapter_detail_info
首先一眼丁真找到js：https://www.ciweimao.com/resources/js/book-read-min.js
简单的aes，写就对了：
移植到python：

1. import requests
   
2. import base64
   
3. from Crypto.Cipher import AES
   
4. 
   
5. headers = {
   
6.     "referer": "https://www.ciweimao.com/chapter/xxx",
   
7. }
   
8. 
   
9. def decrypt_content(content, keys, access_key):
   
10.     t = len(keys)
    
11.     m = len(access_key)
    
12.    
    
13.     k = []
    
14.     k.append(keys[(ord(access_key[m - 1]) % t)])
    
15.     k.append(keys[(ord(access_key[0]) % t)])
    
16.    
    
17.     n = content
    
18.     for i in range(len(k)):
    
19.         n = base64.b64decode(n)
    
20.         
    
21.         p = k[i]
    
22. 
    
23.         j = base64.b64encode(n[:16]).decode('utf-8')
    
24.         f = base64.b64encode(n[16:]).decode('utf-8')
    
25.         cipher = AES.new(
    
26.             base64.b64decode(p),
    
27.             AES.MODE_CBC,
    
28.             iv=base64.b64decode(j)
    
29.         )
    
30.         
    
31.         n = cipher.decrypt(base64.b64decode(f))
    
32. 
    
33.         if i < len(k) - 1:
    
34.             n = base64.b64encode(n).decode('utf-8')
    
35.             n = base64.b64decode(n)
    
36.         else:
    
37.             padding_length = n[-1]
    
38.             n = n[:-padding_length]
    
39.    
    
40.     return n.decode('utf-8')
    
41. 
    
42. def get_chapter_content(chapter_id):
    
43.     s = requests.Session()
    
44. 
    
45.     url = "https://www.ciweimao.com/chapter/ajax_get_session_code"
    
46.     data = {"chapter_id": chapter_id}
    
47.    
    
48.     try:
    
49.         response = s.post(url, headers=headers, data=data)
    
50.         chapter_access_key = response.json()['chapter_access_key']
    
51.     except Exception as e:
    
52.         return None
    
53.     url = "https://www.ciweimao.com/chapter/get_book_chapter_detail_info"
    
54.     data = {
    
55.         "chapter_id": chapter_id,
    
56.         "chapter_access_key": chapter_access_key
    
57.     }
    
58.    
    
59.     try:
    
60.         response = s.post(url, headers=headers, data=data)
    
61.         print(response.text)
    
62.         result = response.json()
    
63.         chapter_content = result['chapter_content']
    
64.         encryt_keys = result['encryt_keys']
    
65.         decrypted_content = decrypt_content(chapter_content, encryt_keys, chapter_access_key)
    
66.         return decrypted_content
    
67.         
    
68.     except Exception as e:
    
69.         return None
    
70. 
    
71. if __name__ == "__main__":
    
72.     chapter_id = "111446252"
    
73.     content = get_chapter_content(chapter_id)
    
74.    
    
75.     if content:
    
76.         print("解密成功！")
    
77.         print(content)
    
78.     else:
    
79.         print("获取内容失败")

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