#!/usr/bin/env python

# Python script to send prowl notifications when RSS feeds are updated.
# Stores a temp file in ~/.prowl-rss with RSS guids. Intended to be run
# via a cron job or on-demand, standalone.

from __future__ import print_function

import httplib2
import urllib
import feedparser
import time
import sys
import os

###

GUID_FILE = os.path.expanduser("~") + "/.prowl-rss"
CONF_FILE = os.path.expanduser("~") + "/.prowl-rss-conf"

API_DOMAIN = 'https://prowl.weks.net/publicapi'

# Pulled out of prowlpy @ https://github.com/omgmovieslol/prowlpy/tree/master
def prowl_post(api, app=None, event=None, desc=None, priority=0):
    # Create the http object
    h = httplib2.Http()

    # Set User-Agent
    headers = {'User-Agent': "Prowlpy/%s" % "0.41"}

    # Perform the request and get the response headers and content
    data = {
        'apikey': api,
        'application': app,
        'event': event,
        'description': desc,
        'priority': priority
    }
    headers["Content-type"] = "application/x-www-form-urlencoded"
    resp,content = h.request("%s/add/" % API_DOMAIN, "POST", headers=headers, body=urllib.urlencode(data))

    if resp['status'] == '200':
        return True
    elif resp['status'] == '401': 
        raise Exception("Auth Failed: %s" % content)
    else:
        raise Exception("Failed")

###

try:
    
    guids = [line.strip() for line in open(GUID_FILE)]
    conf = [line.strip() for line in open(CONF_FILE)]

    apikey = conf[0]
    feeds = conf[1:]

    ##
    fo = open(GUID_FILE, "a")
    for feed in feeds:
        xml = feedparser.parse(feed)

        for e in xml.entries:
            if e.guid not in guids:
                prowl_post(apikey, "RSS", e.title, "{0} - {1} <{2}>".format(e.title, xml.feed.title, e.link))

                fo.write(e.guid+"\n")

                guids.append(e.guid)
                print("Found: {0} => {1}".format(e.title, e.link))
            else:
                print("Ignored: {0} => {1}".format(e.title, e.link))
                pass

    fo.close()

except IOError, e:
    print("{0} file couldn't be found/opened".format(e.filename))
    sys.exit(1)
except Exception, msg:
    print(msg)