用于构造scoop中的下载链接，使scoop cach中的文件命名和根据url重命名后的文件名一至

find_sha256.py

# pyton312
# pip install numba

import hashlib
from concurrent.futures import ProcessPoolExecutor, as_completed
from numba import jit
import numpy as np
from multiprocessing import Manager
import string

# changeable = string.ascii_letters+string.digits
changeable = ['']

url_list = [
    "https://github.com/[xxx]#b977452.7z[xxx]"
]
result=[None ]* len(url_list)


# 使用 numpy 数组加速计算
@jit(nopython=True)
def calculate_index_range(start, end):
    return np.arange(start, end)  # 使用 numpy 数组代替 range

def calculate_sha256(hex_value,url1,url2,url3,letter):
    data = url1+ hex_value + url2+  letter +url3  # 要进行加密的数据
    data_sha = hashlib.sha256(data.encode('utf-8')).hexdigest()
    return data_sha

def task(index, stop_event,url,letter):
    # 16^7 = 268435456
    # 268435456 / 32 = 8388608
    url1,url2,url3 = url.split('[xxx]')
    for i in calculate_index_range(index * 8388608, (index + 1) * 8388608):
        hex_value = f"{i:07x}"  # 输出7位16进制，使用小写字母
        data_sha = calculate_sha256(hex_value,url1,url2,url3,letter)
        if data_sha[:7] == hex_value:
            # print(f"Found: {hex_value}")
            stop_event.value = True
            raise Exception(hex_value)

def run_tasks(url,letter):
    manager = Manager()
    stop_event = manager.Value('b', False)  # 使用共享变量停止任务

    with ProcessPoolExecutor(max_workers=32) as executor:
        futures = []
        for i in range(32):
            futures.append(executor.submit(task, i, stop_event,url,letter))

        for future in as_completed(futures):
            try:
                future.result()  # 处理任务的返回值或异常
            except Exception as e:
                stop_event.value = True  # 设置停止信号
                for future in futures:
                    future.cancel()  # 取消未执行的任务
                return str(e)
        return None

if __name__ == '__main__':

    for letter in changeable:
        for index, url in enumerate(url_list):
            result[index] = run_tasks(url,letter)

        tag = False
        for r in result:
            if r is None:
                tag = True
                break
        # 全找到了hash
        if tag == False:
            print(result)
            print(letter)
            break