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import random
import urllib
import thread
import string
import json
import requests
from datetime import datetime, timedelta
import dateutil.parser
import dateutil.tz
from oauth2client.client import OAuth2Credentials, _extract_id_token
# supposed to work but doesn't... maybe in a newer version?
#from oauth2client import GOOGLE_AUTH_URI
#from oauth2client import GOOGLE_REVOKE_URI
#from oauth2client import GOOGLE_TOKEN_URI
import httplib2
from apiclient.discovery import build
import time
from incoming import find_or_insert_posts
import traceback
# Question: what's worse than an F+ ?
# Answer: this.
GOOGLE_AUTH_URI = 'https://accounts.google.com/o/oauth2/auth'
GOOGLE_REVOKE_URI = 'https://accounts.google.com/o/oauth2/revoke'
GOOGLE_TOKEN_URI = 'https://accounts.google.com/o/oauth2/token'
##################################################################
# timestamp mangling
def convert_timestamp(s):
'convert string to UTC (tz-stripped) datetime'
t = dateutil.parser.parse(s)
t = t.astimezone(dateutil.tz.tzutc()) # force to UTC
return t.replace(tzinfo=None) # strip to prevent stupid crashes
def convert_timestamps(d, fields=('published', 'updated')):
'convert G+ timestamp string fields to datetime objects'
for f in fields:
try:
s = d[f]
except KeyError:
pass
else:
d[f] = convert_timestamp(s)
def get_gplus_timestamp(d):
'safe method for getting a timestamp from gplus data dict'
try:
return convert_timestamp(d['updated'])
except KeyError:
return datetime.utcnow()
####################################################################
# authentication interface to gplus
# we could just use Google's oauth2client.OAuth2WebServerFlow
# but for some reason it doesn't implement the state check
# protection against CSRF attack. So I implemented simple code
# that does protect against that. Oh, and activities().search()
# doesn't work at all yet -- won't take any arguments!
class OAuth(object):
def __init__(self, auth_uri=GOOGLE_AUTH_URI,
token_uri=GOOGLE_TOKEN_URI,
revoke_uri=GOOGLE_REVOKE_URI,
scope='https://www.googleapis.com/auth/plus.login',
requestvisibleactions='http://schemas.google.com/AddActivity',
response_type='code', access_type='offline', user_agent=None,
keys=None, **kwargs):
self.auth_uri = auth_uri
self.token_uri = token_uri
self.revoke_uri = revoke_uri
self.user_agent = None
self.state = ''.join([random.choice(string.ascii_uppercase + string.digits)
for x in xrange(32)])
if not keys:
keys = get_keys()
self.keys = keys
d = dict(state=self.state, redirect_uri=self.keys['redirect_uri'],
client_id=self.keys['client_id'], access_type=access_type,
response_type=response_type, scope=scope,
requestvisibleactions=requestvisibleactions)
d.update(kwargs)
self.login_url = auth_uri + '?' + urllib.urlencode(d)
def get_authorize_url(self):
'get URL to redirect user to sign-in with Google'
return self.login_url
def get_credentials(self, code, state, **kwargs):
'use callback data to get an access token'
if state != self.state:
return False # CSRF attack?!?
d = dict(code=code, client_id=self.keys['client_id'],
client_secret=self.keys['client_secret'],
redirect_uri=self.keys['redirect_uri'],
grant_type='authorization_code')
r = requests.post(self.token_uri, data=d)
self.access_data = ad = r.json()
try:
token_expiry = datetime.utcnow() \
+ timedelta(seconds=int(ad['expires_in']))
except KeyError:
token_expiry = None
if 'id_token' in ad:
ad['id_token'] = _extract_id_token(ad['id_token'])
c = OAuth2Credentials(ad['access_token'], d['client_id'],
d['client_secret'],
ad.get('refresh_token', None), token_expiry,
self.token_uri, self.user_agent,
id_token=ad.get('id_token', None))
self.credentials = c
return c
def get_person(self):
'get Person record (or create one) for authenticated user'
import core
http = httplib2.Http()
self.http = http = self.credentials.authorize(http)
self.service = service = build('plus', 'v1', http=http)
person = service.people().get(userId='me').execute(http=http)
gpd = core.GplusPersonData(docData=person, insertNew='findOrInsert')
# retrieve circles, save subscriptions in background thread
thread.start_new_thread(self.update_subscriptions, (gpd,))
p = gpd.parent
if 'refresh_token' in self.access_data:
p.update(dict(gplusAccess=self.access_data))
return p
def update_subscriptions(self, gplusPersonData):
'''when a new G+ user is added to Person, we need to retrieve
their circles, save that in a GplusSubscriptions record,
translate that to their Person.subscriptions record.
This will typically be run in
a separate thread when G+ user first signs in.
Note we MUST have oauth sign-in as the user to run this.'''
it = self.api_iter('people', userId='me', collection='visible',
getResponse=True)
doc = it.next() # 1st item is the response document
gplusPersonData.update_subscriptions(doc, it)
# direct access to Google APIs
# -- because Google's apiclient search is currently broken!!
def request(self, uri, headers=None, **params):
'perform API query using our access token or API key'
if 'access_token' in getattr(self, 'access_data', ()):
try:
headers = headers.copy()
except AttributeError:
headers = {}
headers['Authorization'] = 'Bearer ' + \
self.access_data['access_token']
else: # use simple API key
params = params.copy()
params['key'] = self.keys['apikey']
r = requests.get(uri, params=params, headers=headers)
return r.json()
def request_iter(self, uri, results=None, **kwargs):
'generate results from query using paging'
params = kwargs.copy()
if results is None: # perform the initial query
results = self.request(uri, **params)
while results.get('items', False):
for item in results['items']:
yield item
try:
params['pageToken'] = results['nextPageToken'] # get next page
except KeyError:
break
results = self.request(uri, **params)
def search_activities(self, uri='https://www.googleapis.com/plus/v1/activities', **kwargs):
'like activities().search() only it WORKS'
return self.request_iter(uri, **kwargs)
def get_person_info(self, userID):
'short cut to people().get(), does authentication for you'
return self.request('https://www.googleapis.com/plus/v1/people/'
+ str(userID))
def get_person_posts(self, userID):
'short cut to activities().list(), does authentication for you'
return self.request_iter('https://www.googleapis.com/plus/v1/people/'
+ str(userID) + '/activities/public')
def get_post_comments(self, postID):
'short cut to comments().list(), does authentication for you'
return self.request_iter('https://www.googleapis.com/plus/v1/activities/'
+ str(postID) + '/comments')
def find_or_insert_posts(self, posts,
get_content=lambda x:x['object']['content'],
get_user=lambda x:x['actor']['id'],
get_replycount=lambda x:
x['object']['replies']['totalItems'],
get_id=lambda x:x['id'],
get_timestamp=get_gplus_timestamp,
is_reshare=lambda x:
x['object']['objectType'] == 'activity' and
x['object'].get('id', False),
**kwargs):
'save google+ posts to core.find_or_insert_posts()'
import core
return find_or_insert_posts(posts, self.get_post_comments,
lambda x:core.GplusPersonData(x,
insertNew='findOrInsert').parent,
get_content, get_user, get_replycount,
get_id, get_timestamp, is_reshare, 'gplusPost',
convert_timestamps, convert_timestamps,
**kwargs)
def api_iter(self, resourceName='activities', verb='list',
getResponse=False, **kwargs):
'use Google apiclient to iterate over results from request'
try:
service = self.service
http = self.http
except AttributeError:
service = build('plus', 'v1', developerKey=self.keys['apikey'])
http = None
rsrc = getattr(service, resourceName)()
request = getattr(rsrc, verb)(**kwargs)
while request is not None:
doc = request.execute(http=http)
if getResponse: # caller requested the response document
getResponse = False # only yield doc as the first item
yield doc
for item in doc['items']:
yield item
request = getattr(rsrc, verb + '_next')(request, doc)
def poll_recent_spnetwork(self, interval=300, *args, **kwargs):
'query for recent #spnetwork traffic every interval seconds'
self._continuePoll = True
while self._continuePoll:
n = 0
try: # catch all errors
for post in self.load_recent_spnetwork(*args, **kwargs):
n += 1
except StandardError: # don't stop polling...
traceback.print_exc() # please change this to real logging!
self._pollReceived = n # count of posts screened
time.sleep(interval)
def halt_poll(self):
'halt poll_recent_spnetwork()'
self._continuePoll = False
def start_poll(self, *args):
'start polling in a background thread'
thread.start_new_thread(self.poll_recent_spnetwork, args)
def load_recent_spnetwork(self, maxDays=10, recentEvents=None, **kwargs):
'scan recent G+ posts for updates, and save updates to DB'
postIt = self.search_activities(query='#spnetwork', orderBy='recent')
return self.find_or_insert_posts(postIt, maxDays=maxDays,
recentEvents=recentEvents, **kwargs)
##################################################################
# default clientID, API key etc. access
def get_keys(keyfile='../google/keys.json'):
with open(keyfile, 'r') as ifile:
keys = json.loads(ifile.read())
return keys
publicAccess = OAuth() # gives API key based access (search public data)
if __name__ == '__main__':
import connect
dbconn = connect.init_connection()
n = 0
for post in publicAccess.load_recent_spnetwork():
n += 1
print 'received %d new posts' % n