| # This serves a different response to each request, to test service worker |
| # updates. If |filename| is provided, it writes that file into the body. |
| # |
| # Usage: |
| # navigator.serviceWorker.register('update_shell.py?filename=worker.js') |
| # |
| # This registers worker.js as a service worker, and every update check |
| # will return a new response. |
| import os |
| import sys |
| import time |
| |
| def main(request, response): |
| # Set no-cache to ensure the user agent finds a new version for each update. |
| headers = [('Cache-Control', 'no-cache, must-revalidate'), |
| ('Pragma', 'no-cache'), |
| ('Content-Type', 'application/javascript')] |
| |
| # Return a different script for each access. Use .time() and .clock() for |
| # best time resolution across different platforms. |
| timestamp = '// %s %s' % (time.time(), time.clock()) |
| body = timestamp + '\n' |
| |
| # Inject the file into the response. |
| if 'filename' in request.GET: |
| path = os.path.join(os.path.dirname(__file__), |
| request.GET['filename']) |
| with open(path, 'rb') as f: |
| body += f.read() |
| |
| return headers, body |
