CSDN 自动上传图片并优化Markdown的图片显示

news2024/10/6 22:24:26

文章目录

    • 完整代码
    • 一、上传资源
    • 二、替换 MD 中的引用文件为在线链接
    • 参考

完整代码

完整代码由两个文件组成，upload.py 和 main.py，放在同一目录下运行 main.py 就好！

# upload.py
import requests  


class UploadPic:  
    def __init__(self, cookie):  
        self.cookie = cookie  
  
        # 解析  
        self.file_path = ''  
        self.img_type = ''  
  
        # 两个请求体  
        self.upload_data = {}  
        self.csdn_data = {}  
        self.output_url = ''  
  
    def _get_file(self, file_path):  
        with open(file_path, mode='rb') as f:  
            binary_data = f.read()  
        return binary_data  
  
    def _upload_request(self):  
        headers = {  
            'accept': '*/*',  
            'accept-language': 'zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6',  
            'content-type': 'application/json',  
            'cookie': self.cookie,  
            'origin': 'https://editor.csdn.net',  
            'priority': 'u=1, i',  
            'referer': 'https://editor.csdn.net/',  
            'sec-ch-ua': '"Not/A)Brand";v="8", "Chromium";v="126", "Microsoft Edge";v="126"',  
            'sec-ch-ua-mobile': '?0',  
            'sec-ch-ua-platform': '"Windows"',  
            'sec-fetch-dest': 'empty',  
            'sec-fetch-mode': 'cors',  
            'sec-fetch-site': 'same-site',  
            'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36 Edg/126.0.0.0',  
        }  
  
        params = {  
            'type': 'blog',  
            'rtype': 'markdown',  
            'x-image-template': '',  
            'x-image-app': 'direct_blog',  
            'x-image-dir': 'direct',  
            'x-image-suffix': self.img_type,  
        }  
  
        url = 'https://imgservice.csdn.net/direct/v1.0/image/upload'  
  
        response = requests.get(url, params=params, headers=headers)  
        try:  
            self.upload_data = response.json()  
        except Exception as e:  
            return e  
  
    def _csdn_request(self):  
        headers = {  
            'Accept': 'application/json, text/javascript, */*; q=0.01',  
            'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6',  
            'Connection': 'keep-alive',  
            'Origin': 'https://editor.csdn.net',  
            'Referer': 'https://editor.csdn.net/',  
            'Sec-Fetch-Dest': 'empty',  
            'Sec-Fetch-Mode': 'cors',  
            'Sec-Fetch-Site': 'cross-site',  
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36 Edg/126.0.0.0',  
            'sec-ch-ua': '"Not/A)Brand";v="8", "Chromium";v="126", "Microsoft Edge";v="126"',  
            'sec-ch-ua-mobile': '?0',  
            'sec-ch-ua-platform': '"Windows"',  
        }  
  
        files = {  
            'key': (None, self.upload_data['data']['filePath']),  
            'policy': (None, self.upload_data['data']['policy']),  
            'OSSAccessKeyId': (None, self.upload_data['data']['accessId']),  
            'success_action_status': (None, '200'),  
            'signature': (None, self.upload_data['data']['signature']),  
            'callback': (None, self.upload_data['data']['callbackUrl']),  
            'file': (f'image.{self.img_type}', self._get_file(self.file_path), f'image/{self.img_type}'),  
        }  
  
        url = 'https://csdn-img-blog.oss-cn-beijing.aliyuncs.com/'  
  
        response = requests.post(url, headers=headers, files=files)  
        try:  
            self.csdn_data = response.json()  
            self.output_url = self.csdn_data['data']['imageUrl']  
        except Exception as e:  
            return e  
  
    def upload_image(self, file_path):  
        self.file_path = file_path  
        self.img_type = self.file_path.split('.')[-1]  
  
        exception_1 = self._upload_request()  
        assert exception_1 is None, exception_1  
        exception_2 = self._csdn_request()  
        assert exception_2 is None, exception_2  
  
        return self.output_url  
  
  
if __name__ == '__main__':  
    cookie = '' # 输入你的cookie  
    upload = UploadPic(cookie)  
    output_url = upload.upload_image('')  #输入你需要上传的文件位置
    print(output_url)

# main.py
import os  
import re  
from pathlib import Path  
from rich.progress import track  
from upload import UploadPic  


class CSDNTransform:  
    def __init__(self, upload:UploadPic, file_path, walk_path='C:/Users/Administrator/Documents/Obsidian Vault/'):  
        self.upload = upload  
        self.file_path = file_path  
        self.walk_path = walk_path  
  
        self.markdown_text = ''  
        self.image_lst = []  
        self.posterior_image_lst = []  
        self.image_2_url_dic = {}  
  
    def _get_markdown_text(self):  
        with open(self.file_path, mode='r', encoding='utf-8') as f:  
            markdown_text = f.read()  
        self.markdown_text = markdown_text  
  
    def _process_markdown_text(self):  
        image_lst = re.findall(r'(!\[\[.*]])', self.markdown_text)  
        posterior_image_lst = [item[3:-2] for item in image_lst]  
  
        self.image_lst = image_lst  
        self.posterior_image_lst = posterior_image_lst  
  
    def _get_target_image_path(self, target_path):  
        for root, floders, files in os.walk(self.walk_path):  
            for file in files:  
                if file == target_path:  
                    return str(Path(root) / file)  
  
    def _get_the_url_of_image(self, image_path):  
        image_url = self.upload.upload_image(image_path)  
        return image_url  
  
    def get_the_urls(self):  
        self._get_markdown_text()  
        self._process_markdown_text()  
  
        not_exist_image_index = []  
  
        for ix, (origin_image, target_path) in track(enumerate(zip(self.image_lst, self.posterior_image_lst))):  
            image_path = self._get_target_image_path(target_path)  
            if image_path is not None:  
                image_url = self._get_the_url_of_image(image_path)  
                self.image_2_url_dic[origin_image] = image_url  
            else:  
                not_exist_image_index.append(ix)  
  
        # 清楚掉需要删除的index  
        num = 0  
        for ix in not_exist_image_index:  
            del self.image_lst[ix-num]  
            del self.posterior_image_lst[ix-num]  
            num += 1  
  
    def _the_transform_data_from(self, image_url):  
        data_form = f"""\n<div align=center><img src="{image_url}"></div>\n"""  
        return data_form  
  
    def _save_markdown_text(self, output_file='markdown_processed.txt'):  
        with open(output_file, mode='w', encoding='utf-8') as f:  
            f.write(self.markdown_text)  
  
    def get_transform(self):  
        self.get_the_urls()  
  
        # Judge the length  
        assert len(self.image_lst) == len(self.image_2_url_dic), f"上传成功{len(self.image_2_url_dic)}张图片,总共有{len(self.image_lst)}张图片"  
  
        for origin_image, image_url in self.image_2_url_dic.items():  
            self.markdown_text = self.markdown_text.replace(origin_image, self._the_transform_data_from(image_url))  
  
        self._save_markdown_text()


if __name__ == '__main__':  
    cookie = ''  # 输入你的cookie
    file_path = ''  # 输入你要转换的markdown文件地址
    upload = UploadPic(cookie)  
    transform = CSDNTransform(upload, file_path)  
    markdown_text = transform.get_transform()

	# 修改后的 Markdown 在当前目录的 markdown_processed.txt 文件中

一、上传资源

首先我们解析 CSDN 上传请求，这里随便上传一张图片，观察请求；

请求由三部分组成，分别是：1. 获取存储位置和签名验证信息；2. 利用签名等验证信息上传文件；3. 获取文件信息并显示；

仔细观察两个请求，upload 请求是 GET ，csdn 请求是 POST，其结果很明显 csdn 请求是主体，仔细观察 csdn 的参数，可以所有参数都可以利用 upload 的返回结果得到；

那么接下来我们开始构造 upload 请求

import requests

headers = {
    'accept': '*/*',
    'accept-language': 'zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6',
    'content-type': 'application/json',
    'cookie': '', # 输入自己的cookies
    'origin': 'https://editor.csdn.net',
    'priority': 'u=1, i',
    'referer': 'https://editor.csdn.net/',
    'sec-ch-ua': '"Not/A)Brand";v="8", "Chromium";v="126", "Microsoft Edge";v="126"',
    'sec-ch-ua-mobile': '?0',
    'sec-ch-ua-platform': '"Windows"',
    'sec-fetch-dest': 'empty',
    'sec-fetch-mode': 'cors',
    'sec-fetch-site': 'same-site',
    'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36 Edg/126.0.0.0',
}

params = {
    'type': 'blog',
    'rtype': 'markdown',
    'x-image-template': '',
    'x-image-app': 'direct_blog',
    'x-image-dir': 'direct',
    'x-image-suffix': 'png',
}

url = 'https://imgservice.csdn.net/direct/v1.0/image/upload'
response = requests.get(url, params=params, headers=headers)

# 获得数据
upload_data = response.json()

得到 json 内容如下，通过比较该内容下 expire 和 time 库下的 time.time() * 1000，再根据英文名可以推断，expire 表示的是上传文件这一请求的失效时间，即 csdn 请求的最晚成功时间；

{'code': 200,
 'data': {'accessId': 'LTAI5tK31AXMAqwzaX1wn4hH',
          'callbackUrl': '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',
          'dir': 'direct',
          'expire': '1718611892700',
          'filePath': 'direct/c7eeaccf56d343379d6b98ff04f2eac5.png',
          'host': 'https://csdn-img-blog.oss-cn-beijing.aliyuncs.com',
          'policy': 'eyJleHBpcmF0aW9uIjoiMjAyNC0wNi0xN1QwODoxMTozMi43MDBaIiwiY29uZGl0aW9ucyI6W1siY29udGVudC1sZW5ndGgtcmFuZ2UiLDAsMTA0ODU3NjAwXSxbInN0YXJ0cy13aXRoIiwiJGtleSIsImRpcmVjdC9jN2VlYWNjZjU2ZDM0MzM3OWQ2Yjk4ZmYwNGYyZWFjNS5wbmciXV19',
          'signature': '2hRKp5YO3epBJe5+Qt7Ngi7P/y4='},
 'message': None,
 'msg': 'success'}

下面利用 upload 得到的请求来构造 csdn 请求；

import requests
from requests_toolbelt.multipart.encoder import MultipartEncoder

def get_file(file_path):
	"""获取文件的二进制数据"""
    with open(file_path, mode='rb') as f:
        binary_data = f.read()
    return binary_data

headers = {
    'Accept': 'application/json, text/javascript, */*; q=0.01',
    'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6',
    'Connection': 'keep-alive',
    'Origin': 'https://editor.csdn.net',
    'Referer': 'https://editor.csdn.net/',
    'Sec-Fetch-Dest': 'empty',
    'Sec-Fetch-Mode': 'cors',
    'Sec-Fetch-Site': 'cross-site',
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36 Edg/126.0.0.0',
    'sec-ch-ua': '"Not/A)Brand";v="8", "Chromium";v="126", "Microsoft Edge";v="126"',
    'sec-ch-ua-mobile': '?0',
    'sec-ch-ua-platform': '"Windows"',
}

success_action_status = '200'

# upload 请求中获取到的数据
key = upload_data['data']['filePath']
policy = upload_data['data']['policy']
OSSAccessKeyId = upload_data['data']['accessId']
signature = upload_data['data']['signature']
callback = upload_data['data']['callbackUrl']

# 上传的图片位置，
file = get_file('') # 输入需要上传文件的位置

files = {
    'key': (None, key),
    'policy': (None, policy),
    'OSSAccessKeyId': (None, OSSAccessKeyId),
    'success_action_status': (None, '200'),
    'signature': (None, signature),
    'callback': (None, callback),
    'file': ('image.png', file, 'image/png'),
}

url = 'https://csdn-img-blog.oss-cn-beijing.aliyuncs.com/'
response = requests.post(url, headers=headers, files=files)

print(response.text)

得到 Json 数据如下

{'code': 200,
 'data': {'hostname': 'https://img-blog.csdnimg.cn/',
  'imageUrl': 'https://img-blog.csdnimg.cn/direct/97c5610606c140afb474800403140ea3.png',
  'width': '1138',
  'targetObjectKey': 'direct/97c5610606c140afb474800403140ea3.png',
  'x-image-suffix': 'png',
  'height': '239'},
 'msg': 'success'}

在其中 imageUrl 就表示上传的图片地址，同时，图片格式有许多种，面对不同的图片格式，在尝试观察后发现只需要修改 upload 请求中 parms 中的 x-image-suffix，csdn 请求中 files 中的 file；

整合得到完整上传类如下：

import requests  
  
  
class UploadPic:  
    def __init__(self, cookie):  
        self.cookie = cookie  
  
        # 解析  
        self.file_path = ''  
        self.img_type = ''  
  
        # 两个请求体  
        self.upload_data = {}  
        self.csdn_data = {}  
        self.output_url = ''  
  
    def _get_file(self, file_path):  
        with open(file_path, mode='rb') as f:  
            binary_data = f.read()  
        return binary_data  
  
    def _upload_request(self):  
        headers = {  
            'accept': '*/*',  
            'accept-language': 'zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6',  
            'content-type': 'application/json',  
            'cookie': self.cookie,  
            'origin': 'https://editor.csdn.net',  
            'priority': 'u=1, i',  
            'referer': 'https://editor.csdn.net/',  
            'sec-ch-ua': '"Not/A)Brand";v="8", "Chromium";v="126", "Microsoft Edge";v="126"',  
            'sec-ch-ua-mobile': '?0',  
            'sec-ch-ua-platform': '"Windows"',  
            'sec-fetch-dest': 'empty',  
            'sec-fetch-mode': 'cors',  
            'sec-fetch-site': 'same-site',  
            'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36 Edg/126.0.0.0',  
        }  
  
        params = {  
            'type': 'blog',  
            'rtype': 'markdown',  
            'x-image-template': '',  
            'x-image-app': 'direct_blog',  
            'x-image-dir': 'direct',  
            'x-image-suffix': self.img_type,  
        }  
  
        url = 'https://imgservice.csdn.net/direct/v1.0/image/upload'  
  
        response = requests.get(url, params=params, headers=headers)  
        try:  
            self.upload_data = response.json()  
        except Exception as e:  
            return e  
  
    def _csdn_request(self):  
        headers = {  
            'Accept': 'application/json, text/javascript, */*; q=0.01',  
            'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6',  
            'Connection': 'keep-alive',  
            'Origin': 'https://editor.csdn.net',  
            'Referer': 'https://editor.csdn.net/',  
            'Sec-Fetch-Dest': 'empty',  
            'Sec-Fetch-Mode': 'cors',  
            'Sec-Fetch-Site': 'cross-site',  
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36 Edg/126.0.0.0',  
            'sec-ch-ua': '"Not/A)Brand";v="8", "Chromium";v="126", "Microsoft Edge";v="126"',  
            'sec-ch-ua-mobile': '?0',  
            'sec-ch-ua-platform': '"Windows"',  
        }  
  
        files = {  
            'key': (None, self.upload_data['data']['filePath']),  
            'policy': (None, self.upload_data['data']['policy']),  
            'OSSAccessKeyId': (None, self.upload_data['data']['accessId']),  
            'success_action_status': (None, '200'),  
            'signature': (None, self.upload_data['data']['signature']),  
            'callback': (None, self.upload_data['data']['callbackUrl']),  
            'file': (f'image.{self.img_type}', self._get_file(self.file_path), f'image/{self.img_type}'),  
        }  
  
        url = 'https://csdn-img-blog.oss-cn-beijing.aliyuncs.com/'  
  
        response = requests.post(url, headers=headers, files=files)  
        try:  
            self.csdn_data = response.json()  
            self.output_url = self.csdn_data['data']['imageUrl']  
        except Exception as e:  
            return e  
  
    def upload_image(self, file_path):  
        self.file_path = file_path  
        self.img_type = self.file_path.split('.')[-1]  
  
        exception_1 = self._upload_request()  
        assert exception_1 is None, exception_1  
        exception_2 = self._csdn_request()  
        assert exception_2 is None, exception_2  
  
        return self.output_url  
  
  
if __name__ == '__main__':  
    cookie = '' # 输入你的cookie  
    upload = UploadPic(cookie)  
    output_url = upload.upload_image('')  #输入你需要上传的文件位置
    print(output_url)

二、替换 MD 中的引用文件为在线链接

首先，肯定是整体替换而不是单个替换，因此我们的流程为：1. 上传所有文件，直到所有的文件都上传成功；2. 替换所有文件；

首先提取出 Markdown 中所有的图片信息，一般来说图片信息都在两个中括号之间 ![[ img_pic ]]，使用 re 正则提取，代码如下；

import re

file_path = 'C:/Users/Administrator/Documents/Obsidian Vault/UE开发/My FirstGame Tutorial.md'

with open(file_path, mode='r', encoding='utf-8') as f:
    markdown_text = f.read()

image_lst = re.findall(r'(!\[\[.*\]\])', markdown_text)
posterior_image_lst = [item[3:-2] for item in image_lst]

提取出所有的 img_pic 后，我们需要在根目录下寻找文件，一般来说在 Markdown 中文件名是不重复的；

import os
from pathlib import Path

def get_target_image_path(target_path):
    walk_path = 'C:/Users/Administrator/Documents/Obsidian Vault/'
    for root, floders, files in os.walk(walk_path):
        for file in files:
            if file == target_path:
                return Path(root) / file

get_target_image_path(posterior_image_lst[0])

获取到了绝对位置后，我们可以将图片上传，在检查图片全部都上传完毕后，我们就可以替换 ![[ img_pic ]]

import os  
import re  
import requests  
from pathlib import Path  
from rich.progress import track  
  
  
class UploadPic:  
    def __init__(self, cookie):  
        self.cookie = cookie  
  
        # 解析  
        self.file_path = ''  
        self.img_type = ''  
  
        # 两个请求体  
        self.upload_data = {}  
        self.csdn_data = {}  
        self.output_url = ''  
  
    def _get_file(self, file_path):  
        with open(file_path, mode='rb') as f:  
            binary_data = f.read()  
        return binary_data  
  
    def _upload_request(self):  
        headers = {  
            'accept': '*/*',  
            'accept-language': 'zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6',  
            'content-type': 'application/json',  
            'cookie': self.cookie,  
            'origin': 'https://editor.csdn.net',  
            'priority': 'u=1, i',  
            'referer': 'https://editor.csdn.net/',  
            'sec-ch-ua': '"Not/A)Brand";v="8", "Chromium";v="126", "Microsoft Edge";v="126"',  
            'sec-ch-ua-mobile': '?0',  
            'sec-ch-ua-platform': '"Windows"',  
            'sec-fetch-dest': 'empty',  
            'sec-fetch-mode': 'cors',  
            'sec-fetch-site': 'same-site',  
            'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36 Edg/126.0.0.0',  
        }  
  
        params = {  
            'type': 'blog',  
            'rtype': 'markdown',  
            'x-image-template': '',  
            'x-image-app': 'direct_blog',  
            'x-image-dir': 'direct',  
            'x-image-suffix': self.img_type,  
        }  
  
        url = 'https://imgservice.csdn.net/direct/v1.0/image/upload'  
  
        response = requests.get(url, params=params, headers=headers)  
        try:  
            self.upload_data = response.json()  
        except Exception as e:  
            return e  
  
    def _csdn_request(self):  
        headers = {  
            'Accept': 'application/json, text/javascript, */*; q=0.01',  
            'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6',  
            'Connection': 'keep-alive',  
            'Origin': 'https://editor.csdn.net',  
            'Referer': 'https://editor.csdn.net/',  
            'Sec-Fetch-Dest': 'empty',  
            'Sec-Fetch-Mode': 'cors',  
            'Sec-Fetch-Site': 'cross-site',  
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36 Edg/126.0.0.0',  
            'sec-ch-ua': '"Not/A)Brand";v="8", "Chromium";v="126", "Microsoft Edge";v="126"',  
            'sec-ch-ua-mobile': '?0',  
            'sec-ch-ua-platform': '"Windows"',  
        }  
  
        files = {  
            'key': (None, self.upload_data['data']['filePath']),  
            'policy': (None, self.upload_data['data']['policy']),  
            'OSSAccessKeyId': (None, self.upload_data['data']['accessId']),  
            'success_action_status': (None, '200'),  
            'signature': (None, self.upload_data['data']['signature']),  
            'callback': (None, self.upload_data['data']['callbackUrl']),  
            'file': (f'image.{self.img_type}', self._get_file(self.file_path), f'image/{self.img_type}'),  
        }  
  
        url = 'https://csdn-img-blog.oss-cn-beijing.aliyuncs.com/'  
  
        response = requests.post(url, headers=headers, files=files)  
        try:  
            self.csdn_data = response.json()  
            self.output_url = self.csdn_data['data']['imageUrl']  
        except Exception as e:  
            return e  
  
    def upload_image(self, file_path):  
        self.file_path = file_path  
        self.img_type = self.file_path.split('.')[-1]  
  
        exception_1 = self._upload_request()  
        assert exception_1 is None, exception_1  
        exception_2 = self._csdn_request()  
        assert exception_2 is None, exception_2  
  
        return self.output_url  
  
  
class CSDNTransform:  
    def __init__(self, upload:UploadPic, file_path, walk_path='C:/Users/Administrator/Documents/Obsidian Vault/'):  
        self.upload = upload  
        self.file_path = file_path  
        self.walk_path = walk_path  
  
        self.markdown_text = ''  
        self.image_lst = []  
        self.posterior_image_lst = []  
        self.image_2_url_dic = {}  
  
    def _get_markdown_text(self):  
        with open(self.file_path, mode='r', encoding='utf-8') as f:  
            markdown_text = f.read()  
        self.markdown_text = markdown_text  
  
    def _process_markdown_text(self):  
        image_lst = re.findall(r'(!\[\[.*]])', self.markdown_text)  
        posterior_image_lst = [item[3:-2] for item in image_lst]  
  
        self.image_lst = image_lst  
        self.posterior_image_lst = posterior_image_lst  
  
    def _get_target_image_path(self, target_path):  
        for root, floders, files in os.walk(self.walk_path):  
            for file in files:  
                if file == target_path:  
                    return str(Path(root) / file)  
  
    def _get_the_url_of_image(self, image_path):  
        image_url = self.upload.upload_image(image_path)  
        return image_url  
  
    def get_the_urls(self):  
        self._get_markdown_text()  
        self._process_markdown_text()  
  
        not_exist_image_index = []  
  
        for ix, (origin_image, target_path) in track(enumerate(zip(self.image_lst, self.posterior_image_lst))):  
            image_path = self._get_target_image_path(target_path)  
            if image_path is not None:  
                image_url = self._get_the_url_of_image(image_path)  
                self.image_2_url_dic[origin_image] = image_url  
            else:  
                not_exist_image_index.append(ix)  
  
        # 清楚掉需要删除的index  
        num = 0  
        for ix in not_exist_image_index:  
            del self.image_lst[ix-num]  
            del self.posterior_image_lst[ix-num]  
            num += 1  
  
    def _the_transform_data_from(self, image_url):  
        data_form = f"""\n<div align=center><img src="{image_url}"></div>\n"""  
        return data_form  
  
    def _save_markdown_text(self, output_file='markdown_processed.txt'):  
        with open(output_file, mode='w', encoding='utf-8') as f:  
            f.write(self.markdown_text)  
  
    def get_transform(self):  
        self.get_the_urls()  
  
        # Judge the length  
        assert len(self.image_lst) == len(self.image_2_url_dic), f"上传成功{len(self.image_2_url_dic)}张图片,总共有{len(self.image_lst)}张图片"  
  
        for origin_image, image_url in self.image_2_url_dic.items():  
            self.markdown_text = self.markdown_text.replace(origin_image, self._the_transform_data_from(image_url))  
  
        self._save_markdown_text()
  
if __name__ == '__main__':  
    cookie = ''  # 输入你的cookie
    file_path = ''  # 输入你要转换的markdown文件地址
    upload = UploadPic(cookie)  
    transform = CSDNTransform(upload, file_path)  
    markdown_text = transform.get_transform()

	# 修改后的 Markdown 在当前目录的 markdown_processed.txt 文件中

参考

requests库post请求参数data、json和files的使用_requests post data-CSDN博客
HTTP协议之multipart/form-data请求分析_http form-data请求-CSDN博客

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