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hackerspace-tweet-bot.py
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hackerspace-tweet-bot.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Tweeting bot for hackerspace events
#
import urllib
import smtplib
import htmllib
import json
import string
from datetime import datetime, timedelta
from ConfigParser import SafeConfigParser
from email.MIMEMultipart import MIMEMultipart
from email.MIMEBase import MIMEBase
from email.MIMEText import MIMEText
import tinyurl
#Read configuration
parser = SafeConfigParser()
if parser.read('./config.ini'):
USERNAME = parser.get('identica', 'username')
PASSWORD = parser.get('identica', 'password')
TWEET = parser.get('identica', 'tweet')
MAIL = parser.get('email', 'mail')
MAIL_FROM = parser.get('email', 'mail_from')
MAIL_TO = parser.get('email', 'mail_to')
MAIL_KEY = parser.get('email', 'mail_key')
else:
print "error: no config.ini found"
exit()
QUERY = "http://hackerspace.gr/api.php?action=ask&q=[[Category:Events]]" \
"&format=json&po=location|Start%20date|End%20date|displaytitle"
def unescape(s):
p = htmllib.HTMLParser(None)
p.save_bgn()
p.feed(s)
return p.save_end()
def sameday(d1, d2):
# hmm maybe there is a function for this, but right now the
# temperature is too high to check ;)
# at least do it in a cool way
attr = ('day', 'year', 'month')
return reduce(lambda x,y: x==y==True,
map(lambda a: getattr(d1,a) == getattr(d2,a), attr)
)
def truncate(string,target):
if len(string) > target:
return string[:(target-3)] + "..."
else:
return string
def squawk(username,password,message):
"""Simple post-to-twitter function"""
message = truncate(message,140) # trim message
data = urllib.urlencode({"status" : message})
res = urllib.urlopen("http://%s:%s@identi.ca/api/statuses/update.xml" %\
(username,password), data)
return res
def main():
email_sender = smtplib.SMTP('localhost')
today = datetime.now()
tomorrow = datetime.now() + timedelta(days=1)
try:
results = urllib.urlopen(QUERY).read()
except:
raise
results = json.loads(results)
try:
data = results['ask']['results']['items']
except KeyError:
raise ValueError("Bad API data")
for item in data:
try:
displaytitle = item['properties']['displaytitle']
except:
#no title
continue
try:
start_date = datetime.strptime(item['properties']['start_date'],
"%Y-%m-%d %H:%M:%S"
)
except ValueError:
# cannot parse date, move to next time
continue
try:
end_date = datetime.strptime(item['properties']['end_date'],
"%Y-%m-%d %H:%M:%S"
)
except ValueError:
# cannot parse end date, make it equal to start_date + 1
end_date = start_date + timedelta(hour=1)
when = None
if sameday(today, start_date):
when = u"Σήμερα"
elif sameday(tomorrow, start_date):
when = u"Αύριο"
if when:
# shorten url
# url-quote wiki page title so we
# generate correct links
uri = item['uri'][43:].encode("utf-8")
url = tinyurl.create(item['uri'][:43] +
urllib.quote(uri)
).next()
url = url.encode("utf-8")
title = unescape(item['title'])
tweet_message = u"%s στις %02d.%02d: %s %s" %\
(when,
start_date.hour,
start_date.minute,
truncate(title, 140),
url
)
tweet_message = tweet_message.encode("utf-8")
email_message = u"%s στις %02d.%02d: %s" %\
(when,
start_date.hour,
start_date.minute,
title
)
email_message = email_message.encode("utf-8")
if TWEET:
squawk(USERNAME, PASSWORD, tweet_message)
if MAIL:
msg = MIMEMultipart()
msg.set_charset('utf-8')
msg['Approved'] = MAIL_KEY
msg['From'] = MAIL_FROM
msg['To'] = MAIL_TO
msg['Subject'] = '[hsgr-ann] %s' % email_message
BODY = string.join(
(email_message,
u"\r\nΠερισσότερα: ".encode("utf-8") + url,
"\r\n--\r\nHackerspace Little Event Bot",
), "\r\n"
)
t = MIMEText(BODY)
t.set_charset('utf-8')
msg.attach(t)
# attach ICS
part = MIMEBase('text', "calendar")
part.set_payload(string.join(
(
"BEGIN:VCALENDAR",
"VERSION:2.0",
"PRODID:-//hsgr/handcal//NONSGML v1.0//EN",
"BEGIN:VEVENT",
"UID:%s@hsgr" % displaytitle.encode('utf-8').replace(' ', '_'),
"DTSTAMP;TZID=Europe/Athens:%04d%02d%02dT%02d%02d00" % (
start_date.year,
start_date.month,
start_date.day,
start_date.hour,
start_date.minute),
"ORGANIZER;CN=Hackerspace:MAILTO:mail@hackerspace.gr",
"DTSTART;TZID=Europe/Athens:%04d%02d%02dT%02d%02d00" % (
start_date.year,
start_date.month,
start_date.day,
start_date.hour,
start_date.minute),
"DTEND;TZID=Europe/Athens:%04d%02d%02dT%02d%02d00" % (
end_date.year,
end_date.month,
end_date.day,
end_date.hour,
end_date.minute),
"SUMMARY:%s" % email_message,
"END:VEVENT",
"END:VCALENDAR"
), "\r\n")
)
part.add_header('Content-Disposition',
'attachment; filename="event.ics"')
part.set_charset('utf-8')
msg.attach(part)
email_sender.sendmail(MAIL_FROM, MAIL_TO, msg.as_string())
if __name__ == "__main__":
main()