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import base64 |
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import json |
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import time |
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import requests |
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from crypto_plus import CryptoPlus |
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from flask import Flask, request |
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rsa = CryptoPlus.loads('''-----BEGIN PUBLIC KEY----- |
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MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC72/8TD242+vn0FDQm8YyeY2WH |
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rNIxpiCgGT6H5EbDgo7mAXy5+LtJ/imCrqfYli4mwW3SPagtGlTo1OrlqafX+pIs |
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ehYnKuMQEW9nPbJ0z3ItrFx1cTC70Dx3mk6mrK+KOx6XgfiLqrgGy/wysbPX5PdN |
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Apg4Wc3GsMk8UpdtGQIDAQAB |
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-----END PUBLIC KEY-----''') |
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def is_expired(access_token): |
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if not access_token: |
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return True |
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try: |
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message, signature = access_token.rsplit('.', 1) |
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header, payload = message.split('.') |
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payload = payload + '=' * - (len(payload) % - 4) |
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signature = signature + '=' * - (len(signature) % - 4) |
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exp = json.loads(base64.b64decode(payload).decode()).get('exp') |
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return exp - time.time() < 10 or not rsa.verify(message.encode(), base64.urlsafe_b64decode(signature)) |
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except: |
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return True |
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app = Flask(__name__) |
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@app.route('/', methods=['GET', 'POST']) |
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def download_url_form(): |
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if request.method == 'POST': |
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file_id = request.form['file_id'] |
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access_token = request.form['access_token'] |
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if is_expired(access_token): |
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return 'token is expired', 401 |
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drive_info = requests.post('https://bj29.api.aliyunpds.com/v2/drive/list_my_drives', json={ |
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}, headers={ |
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"Authorization": f"Bearer {access_token}", |
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}).json() |
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driver_id_map = {i['category']: i['drive_id'] for i in drive_info['items'] if |
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i['category'] in ['backup', 'resource']} |
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resp = requests.post('https://bj29.api.aliyunpds.com/v2/file/get_download_url', json={ |
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'drive_id': driver_id_map['resource'], |
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'file_id': file_id, |
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'expire_sec': 115200, |
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}, headers={ |
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'Authorization': f'Bearer {access_token}', |
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}) |
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if resp.status_code == 404: |
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resp = requests.post('https://bj29.api.aliyunpds.com/v2/file/get_download_url', json={ |
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'drive_id': driver_id_map['backup'], |
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'file_id': file_id, |
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'expire_sec': 115200, |
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}, headers={ |
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'Authorization': f'Bearer {access_token}', |
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}) |
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if resp.status_code == 200: |
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data = resp.json() |
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url = data.get('cdn_url') |
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if not url: |
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url = data.get('url') |
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return f'<h1>Download URL:</h1><p>{url}</p>' |
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return f'<h1>Error:</h1><p>{resp.reason}</p>' |
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return ''' |
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<!DOCTYPE html> |
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<html lang="en"> |
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<head> |
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<meta charset="UTF-8"> |
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<meta name="viewport" content="width=device-width, initial-scale=1.0"> |
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<title>Download URL Form</title> |
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<style> |
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body { |
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font-family: Arial, sans-serif; |
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background-color: #f0f0f0; |
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} |
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.container { |
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max-width: 400px; |
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margin: 50px auto; |
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padding: 20px; |
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background-color: #fff; |
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border-radius: 5px; |
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box-shadow: 0 0 10px rgba(0, 0, 0, 0.1); |
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} |
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h1 { |
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font-size: 24px; |
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margin-bottom: 20px; |
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text-align: center; |
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} |
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form { |
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display: flex; |
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flex-direction: column; |
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} |
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label { |
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font-size: 16px; |
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margin-bottom: 8px; |
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} |
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input[type="text"] { |
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padding: 10px; |
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margin-bottom: 20px; |
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border: 1px solid #ccc; |
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border-radius: 5px; |
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font-size: 16px; |
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} |
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button { |
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padding: 10px; |
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background-color: #007bff; |
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color: #fff; |
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border: none; |
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border-radius: 5px; |
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font-size: 16px; |
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cursor: pointer; |
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} |
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button:hover { |
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background-color: #0056b3; |
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} |
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</style> |
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</head> |
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<body> |
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<div class="container"> |
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<h1>Download URL Form</h1> |
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<form action="/" method="post"> |
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<label for="file_id">File ID:</label> |
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<input type="text" id="file_id" name="file_id" required> |
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<label for="access_token">Access Token:</label> |
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<input type="text" id="access_token" name="access_token" required> |
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<button type="submit">Get Download URL</button> |
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</form> |
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</div> |
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</body> |
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</html> |
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''' |
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if __name__ == '__main__': |
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app.run('0.0.0.0',7860) |
