数据迁移上云服务新年促销

import requests
import hashlib

def calculate_md5(file_path):
    hash_md5 = hashlib.md5()
    with open(file_path, "rb") as f:
        for chunk in iter(lambda: f.read(4096), b""):
            hash_md5.update(chunk)
    return hash_md5.hexdigest()

def migrate_data(source_url, destination_url):
    response = requests.get(source_url, stream=True)
    if response.status_code == 200:
        with open("temp_file", "wb") as f:
            for chunk in response.iter_content(chunk_size=8192):
                f.write(chunk)
        
        local_md5 = calculate_md5("temp_file")
        files = {'file': open('temp_file', 'rb')}
        upload_response = requests.post(destination_url, files=files)
        
        if upload_response.status_code == 200:
            remote_md5 = upload_response.json().get('md5')
            if local_md5 == remote_md5:
                print("Data migration successful and data integrity verified.")
            else:
                print("Data integrity check failed.")
        else:
            print("Failed to upload data to destination.")
    else:
        print("Failed to download data from source.")

# Example usage
migrate_data("http://example.com/source_file", "http://example.com/destination")