文件下载cdn加速

import requests

# 腾讯云CDN API配置
cdn_api_url = "https://api.cdn.tencent.com"
access_key = "your_access_key"
secret_id = "your_secret_id"

# 文件下载URL
file_url = "https://example.com/largefile.zip"

# 获取CDN加速URL
def get_cdn_url(file_url):
    headers = {
        "Authorization": f"TC3-HMAC-SHA256 Credential={access_key}/2023-04-10/cdn/tc3_request, SignedHeaders=content-type;host;x-tc-action;x-tc-timestamp, Signature=your_signature"
    }
    params = {
        "Action": "CreateUrl",
        "Url": file_url,
        "Type": "download"
    }
    response = requests.get(f"{cdn_api_url}?{params}", headers=headers)
    if response.status_code == 200:
        return response.json()["Data"]["Url"]
    else:
        raise Exception("Failed to get CDN URL")

# 下载文件
def download_file(url):
    response = requests.get(url, stream=True)
    if response.status_code == 200:
        with open("downloadedfile.zip", "wb") as f:
            for chunk in response.iter_content(chunk_size=1024):
                if chunk:
                    f.write(chunk)
    else:
        raise Exception("Failed to download file")

# 获取CDN加速URL并下载文件
cdn_url = get_cdn_url(file_url)
download_file(cdn_url)