remove_bilibili_fans.py

#!/usr/bin/env python3

# Auto remove fans in bilibili.com
# 全天候移除 B 站粉丝, 彻底变成小透明
# 操作不可逆, 后果自负
# 用法: 把 B 站的 cookies 保存为 Netscape 格式的 cookie.txt 后, 再执行此脚本

# 另外, 稍作修改就可以变成自动关注或自动拉黑新增粉丝的奇怪脚本

# 已知的 act 代码:
# 1, 公开关注 
# 2, 取消公开关注
# 3, 悄悄关注
# 4, 取消悄悄关注
# 5, 拉黑
# 6, 取消拉黑
# 7, 移除粉丝

import re
import requests
import json
import time
from datetime import datetime as dt

def parseCookieFile(cookiefile):
	"""Parse a cookies.txt file and return a dictionary of key value pairs
	compatible with requests."""

	cookies = {}
	with open (cookiefile, 'r') as fp:
		for line in fp:
			if not re.match(r'^\#', line):
				lineFields = line.strip().split('\t')
				cookies[lineFields[5]] = lineFields[6]
	return cookies

def cleanStr(s):
	return s.strip().replace('\r', '').replace('\n', '')

def printUser(u):
	uid = str(u['mid'])
	n = cleanStr(u['uname'])
	t = dt.utcfromtimestamp(u['mtime']).strftime('%F %T')
	now = dt.utcnow().strftime('%F %T')
	
	print('[{}]\t{}\t{}\t({})'.format(now, uid, n, t))
	

cj = parseCookieFile('cookie.txt')
me = cj['DedeUserID']
print(me)

s = requests.Session()
s.cookies.update(cj)


while True:
	# get a fan
	uri = 'https://api.bilibili.com/x/relation/followers?ps=1&vmid=' + me
	r = s.get(uri)
	j = json.loads(r.text)
	if j['code'] != 0:
		print(r.text)
		break
	fans = j['data']['list']
	if len(fans) < 1:
		print('[{}]\t(no fans)'.format(dt.utcnow().strftime('%F %T')))
		time.sleep(600) # wait for 10 minutes
		continue

	# delete the fan
	printUser(fans[0])
	d = {
		"fid": fans[0]['mid'],
		"act": 7,
		"re_src": 11,
		"csrf": cj['bili_jct'],
	}
	time.sleep(2)
	r = s.post('https://api.bilibili.com/x/relation/modify', data = d)
	j = json.loads(r.text)
	if j['code'] != 0:
		print(r.text)
		break
	time.sleep(1)