+++ /dev/null
-"""A simple web server that accepts POSTS containing a list of feed urls,
-and returns the titles of those feeds.
-"""
-import eventlet
-feedparser = eventlet.import_patched('feedparser')
-
-# the pool provides a safety limit on our concurrency
-pool = eventlet.GreenPool()
-
-
-def fetch_title(url):
- d = feedparser.parse(url)
- return d.feed.get('title', '')
-
-
-def app(environ, start_response):
- if environ['REQUEST_METHOD'] != 'POST':
- start_response('403 Forbidden', [])
- return []
-
- # the pile collects the result of a concurrent operation -- in this case,
- # the collection of feed titles
- pile = eventlet.GreenPile(pool)
- for line in environ['wsgi.input'].readlines():
- url = line.strip()
- if url:
- pile.spawn(fetch_title, url)
- # since the pile is an iterator over the results,
- # you can use it in all sorts of great Pythonic ways
- titles = '\n'.join(pile)
- start_response('200 OK', [('Content-type', 'text/plain')])
- return [titles]
-
-
-if __name__ == '__main__':
- from eventlet import wsgi
- wsgi.server(eventlet.listen(('localhost', 9010)), app)