gistfile1.py

#!/usr/bin/env python


import time
import sys
import os
import json
from flask import Flask, Request, Response
from werkzeug.routing import BaseConverter
import urllib2


application = app = Flask('wsgi')

@app.errorhandler(404)
def not_found(error):
    resp = make_response(render_template('error.html'), 404)
    resp.headers['X-Something'] = 'A value'
    return resp

@app.route('/')
def welcome():
    return 'welcome to appfog!'


class RegexConverter(BaseConverter):
    def __init__(self, url_map, *items):
        super(RegexConverter, self).__init__(url_map)
        self.regex = items[0]

app.url_map.converters['regex'] = RegexConverter

@app.route('/atestaaafads/<regex("[abcABC0-9]{4,6}"):uid>-<slug>/')
def example1(uid, slug):
    return "uid: %s, slug: %s" % (uid, slug)

@app.route('/mp4/<regex(".*"):filename>')
def FetchM4V(filename):
    response1 = urllib2.urlopen(filename)
    content = response1.read()
    return Response(content, content_type="video/mp4")

@app.route('/mp3/<regex(".*"):filename>')
def FetchMP3(filename):
    response1 = urllib2.urlopen(filename)
    content = response1.read()
    return Response(content, content_type="audio/mp3")

@app.route('/htm/<regex(".*"):filename>')
def FetchHTM(filename):
    response1 = urllib2.urlopen(filename)
    content = response1.read()
    return Response(content, content_type="text/html")

@app.route('/jpg/<regex(".*"):filename>')
def FetchJPG(filename):
    response1 = urllib2.urlopen(filename)
    content = response1.read()
    return Response(content, content_type="image/jpeg")

@app.route('/env')
def env():
    return os.environ.get("VCAP_SERVICES", "{}")

@app.route('/mongo')
def mongotest():
    from pymongo import Connection
    uri = mongodb_uri()
    conn = Connection(uri)
    coll = conn.db['ts']
    coll.insert(dict(now=int(time.time())))
    last_few = [str(x['now']) for x in coll.find(sort=[("_id", -1)], limit=10)]
    body = "\n".join(last_few)
    return Response(body, content_type="text/plain;charset=UTF-8")

def mongodb_uri():
    local = os.environ.get("MONGODB", None)
    if local:
        return local
    services = json.loads(os.environ.get("VCAP_SERVICES", "{}"))
    if services:
        creds = services['mongodb-1.8'][0]['credentials']
        uri = "mongodb://%s:%s@%s:%d/%s" % (
            creds['username'],
            creds['password'],
            creds['hostname'],
            creds['port'],
            creds['db'])
        print >> sys.stderr, uri
        return uri
    else:
        raise Exception, "No services configured"
    

if __name__ == '__main__':
    app.run(debug=True)