将电子邮件附件从Microsoft Graph输出到磁盘上的文件中

import requests
import os

# 替换为你的客户端ID、客户端密钥和租户ID
client_id = 'your-client-id'
client_secret = 'your-client-secret'
tenant_id = 'your-tenant-id'

# 获取访问令牌
token_url = f'https://login.microsoftonline.com/{tenant_id}/oauth2/v2.0/token'
token_data = {
    'grant_type': 'client_credentials',
    'client_id': client_id,
    'client_secret': client_secret,
    'scope': 'https://graph.microsoft.com/.default'
}
response = requests.post(token_url, data=token_data)
access_token = response.json().get('access_token')

if not access_token:
    raise Exception("Failed to get access token")

# 获取邮件附件
email_id = 'your-email-id'  # 替换为你的邮件ID
attachments_url = f'https://graph.microsoft.com/v1.0/me/messages/{email_id}/attachments'
headers = {
    'Authorization': f'Bearer {access_token}',
    'Content-Type': 'application/json'
}
response = requests.get(attachments_url, headers=headers)
attachments = response.json().get('value')

if not attachments:
    raise Exception("No attachments found")

# 保存附件到磁盘
for attachment in attachments:
    attachment_id = attachment['id']
    attachment_name = attachment['name']
    attachment_content_url = f'https://graph.microsoft.com/v1.0/me/messages/{email_id}/attachments/{attachment_id}/$value'
    
    attachment_response = requests.get(attachment_content_url, headers=headers)
    if attachment_response.status_code == 200:
        with open(attachment_name, 'wb') as file:
            file.write(attachment_response.content)
        print(f'Saved {attachment_name} to disk')
    else:
        print(f'Failed to download {attachment_name}')