1. 背景

日常笔记使用语雀记录文章，想要快速同步内容至FreeBuf，寻找已有工具无果，遂写了个工具方便快速同步文章。

2. 工具

# coding=utf-8
import re
import requests
from urllib.parse import urlparse
import os
import urllib3
import time
import random
from requests.adapters import HTTPAdapter
from requests.packages.urllib3.util.ssl_ import create_urllib3_context

# 禁用所有 SSL 相关的警告
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)


class JA3Adapter(HTTPAdapter):
    """
    自定义 HTTPAdapter 用于随机化 JA3 指纹
    """
    def init_poolmanager(self, *args, **kwargs):
        context = create_urllib3_context()
        # 随机化 TLS 指纹
        context.set_ciphers(':'.join([
            'ECDHE-ECDSA-AES128-GCM-SHA256',
            'ECDHE-RSA-AES128-GCM-SHA256',
            'ECDHE-ECDSA-AES256-GCM-SHA384',
            'ECDHE-RSA-AES256-GCM-SHA384',
            'ECDHE-ECDSA-CHACHA20-POLY1305',
            'ECDHE-RSA-CHACHA20-POLY1305',
            'DHE-RSA-AES128-GCM-SHA256',
            'DHE-RSA-AES256-GCM-SHA384',
        ]))
        kwargs['ssl_context'] = context
        return super().init_poolmanager(*args, **kwargs)


def upload_img(img_file):
    """
    上传图片到指定服务器
    """
    up_url = 'https://www.freebuf.com/fapi/frontend/upload/image'
    auth = "Bearer eyJhbGc"
    headers = {
        "Accept": "application/json, text/plain, */*",
        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.0 Safari/537.36",
        "X-Client-Type": "web",
        "Origin": "https://www.freebuf.com",
        "Sec-Fetch-Site": "same-origin",
        "Sec-Fetch-Mode": "cors",
        "Sec-Fetch-Dest": "empty",
        "Referer": "https://www.freebuf.com/write",
        "Accept-Encoding": "gzip, deflate",
        "Accept-Language": "zh-CN,zh;q=0.9",
        "Authorization": auth
    }

    # 使用自定义 JA3Adapter
    session = requests.Session()
    session.mount('https://', JA3Adapter())

    try:
        with open(img_file, 'rb') as file:
            files = {'file': file}
            response = session.post(up_url, headers=headers, verify=False, files=files)
            response.raise_for_status()  # 检查请求是否成功
            print(f"已完成图片 {img_file} 的上传")
            return response.json().get('data').get('url')
    except Exception as e:
        print(f"上传图片 {img_file} 失败: {e}")
        return None


def replace_img(img_url):
    """
    下载图片并上传到服务器
    """
    try:
        # 使用自定义 JA3Adapter
        session = requests.Session()
        session.mount('https://', JA3Adapter())

        response = session.get(img_url, verify=False)
        response.raise_for_status()  # 检查请求是否成功

        file_name = get_file_name(img_url)
        file_all_name = os.path.join("./files", file_name)

        os.makedirs("./files", exist_ok=True)  # 确保目录存在
        with open(file_all_name, 'wb') as file:
            for chunk in response.iter_content(chunk_size=8192):  # 每次读取 8 KB 数据
                file.write(chunk)
        print(f"文件 {file_all_name} 已完成下载")
        return upload_img(file_all_name)
    except Exception as e:
        print(f"下载或上传图片失败: {e}")
        return None


def get_file_name(img_url):
    """
    从 URL 中提取文件名
    """
    parsed_url = urlparse(img_url)
    return os.path.basename(parsed_url.path)


def replace_md(md_file):
    """
    替换 Markdown 文件中的图片链接
    """
    try:
        with open(md_file, 'r', encoding='utf-8') as f:
            content = f.read()

        urls = re.findall(r'https://cdn.nlark.com/yuque[\w/-]+.png', content)
        for url in urls:
            time.sleep(1)  # 配置延时避免速率太快被拦截
            replace_url = replace_img(url)
            if replace_url:
                content = re.sub(re.escape(url), replace_url, content)

        output_file = md_file + '_modify.md'
        with open(output_file, 'w', encoding='utf-8') as fo:
            fo.write(content)
        print(f"已完成图片上传，复制新 md 内容至 freebuf 即可: {output_file}")
    except Exception as e:
        print(f"处理 Markdown 文件失败: {e}")


if __name__ == "__main__":
    # 配置 markdown 文件名
    replace_md('upload.md')