Add full FB API (Graph API) support

master
pictuga 2013-11-09 18:48:06 +01:00
parent e5fc9786f6
commit 3664879d92
2 changed files with 130 additions and 6 deletions

View File

@ -11,6 +11,8 @@ import lxml.html
import json import json
import urlparse import urlparse
import time
def toclass(query): def toclass(query):
pattern = r'\[class=([^\]]+)\]' pattern = r'\[class=([^\]]+)\]'
repl = r'[@class and contains(concat(" ", normalize-space(@class), " "), " \1 ")]' repl = r'[@class and contains(concat(" ", normalize-space(@class), " "), " \1 ")]'
@ -59,7 +61,6 @@ def formatString(string, getter, error=False):
elif re.search(r'^([^{}<>" ]+)(?:<"([^>]+)">)?(.*)$', string): elif re.search(r'^([^{}<>" ]+)(?:<"([^>]+)">)?(.*)$', string):
match = re.search(r'^([^{}<>" ]+)(?:<"([^>]+)">)?(.*)$', string).groups() match = re.search(r'^([^{}<>" ]+)(?:<"([^>]+)">)?(.*)$', string).groups()
rawValue = getter(match[0]) rawValue = getter(match[0])
print repr(rawValue)
if not isinstance(rawValue, basestring): if not isinstance(rawValue, basestring):
if match[1] is not None: if match[1] is not None:
out = match[1].join(rawValue) out = match[1].join(rawValue)
@ -76,9 +77,69 @@ def formatString(string, getter, error=False):
else: else:
return out return out
def PreWorker(url, cache):
if urlparse.urlparse(url).netloc == 'graph.facebook.com':
facebook = cache.new('facebook', True)
token = urlparse.parse_qs(urlparse.urlparse(url).query)['access_token'][0]
if 't'+token not in facebook:
# this token ain't known, look for info about it
eurl = "https://graph.facebook.com/debug_token?input_token={token}&access_token={app_token}".format(token=token, app_token=morss.FBAPPTOKEN)
data = json.loads(urllib2.urlopen(eurl).read())['data']
app_id = str(data['app_id'])
user_id = str(data['user_id'])
expires = data['expires_at']
short = 'issued_at' not in data
facebook.set('t'+token, user_id)
facebook.set('e'+token, expires)
good = True
# do some woodoo to know if we already have sth better
if 'u'+user_id not in facebook:
# grab a new one anyway, new user
facebook.set('o'+user_id, token)
good = True
else:
# maybe it's a better one
last = facebook.get('u'+user_id)
last_expires = facebook.get('e'+last, int)
if expires > last_expires:
# new is better
good = True
if good and short and app_id == morss.FBAPPID:
eurl = "https://graph.facebook.com/oauth/access_token?grant_type=fb_exchange_token&client_id={app_id}&client_secret={app_secret}&fb_exchange_token={short_lived_token}".format(app_id=morss.FBAPPID, app_secret=morss.FBSECRET, short_lived_token=token)
values = urlparse.parse_qs(urllib2.urlopen(eurl).read().strip())
token = values['access_token'][0]
expires = int(time.time() + int(values['expires'][0]))
facebook.set('t'+token, user_id)
facebook.set('e'+token, expires)
if good:
facebook.set('u'+user_id, token)
# hey look for a newer token and use it
token = urlparse.parse_qs(urlparse.urlparse(url).query)['access_token'][0]
user_id = facebook.get('t'+token)
last = facebook.get('u'+user_id)
original = facebook.get('o'+user_id)
nurl = url.replace(token, last)
ncache = url.replace(token, original)
cache.set('redirect', nurl)
cache.set('cache', ncache)
class Builder(object): class Builder(object):
def __init__(self, link, data=None): def __init__(self, link, data=None, cache=False):
self.link = link self.link = link
self.cache = cache
if data is None: if data is None:
data = urllib2.urlopen(link).read() data = urllib2.urlopen(link).read()
@ -167,3 +228,18 @@ class Builder(object):
feedItem['updated'] = self.string(item, 'item_time') feedItem['updated'] = self.string(item, 'item_time')
self.feed.items.append(feedItem) self.feed.items.append(feedItem)
if urlparse.urlparse(self.link).netloc == 'graph.facebook.com':
if self.cache:
facebook = self.cache.new('facebook', True)
token = urlparse.parse_qs(urlparse.urlparse(self.link).query)['access_token'][0]
expires = facebook.get('e'+token, int)
lifespan = expires - time.time()
if lifespan < 5*24*3600:
new = self.feed.items.append()
new.title = "APP AUTHORISATION RENEWAL NEEDED"
new.link = "https://www.facebook.com/dialog/oauth?client_id={app_id}&redirect_uri=http://test.morss.it/:facebook/".format(app_id=morss.FBAPPID)
new.desc = "Please renew your Facebook app token for this app to keep working for this feed.<br/><a href='{}'>Go!</a>".format(new.link)
new.time = cache.get(expires, int)

View File

@ -42,6 +42,10 @@ UA_HTML = 'Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.11) G
MIMETYPE = { 'xml': ['text/xml', 'application/xml', 'application/rss+xml', 'application/rdf+xml', 'application/atom+xml'], MIMETYPE = { 'xml': ['text/xml', 'application/xml', 'application/rss+xml', 'application/rdf+xml', 'application/atom+xml'],
'html': ['text/html', 'application/xhtml+xml']} 'html': ['text/html', 'application/xhtml+xml']}
FBAPPID = "<insert yours>"
FBSECRET = "<insert yours>"
FBAPPTOKEN = FBAPPID + '|' + FBSECRET
PROTOCOL = ['http', 'https', 'ftp'] PROTOCOL = ['http', 'https', 'ftp']
if 'REQUEST_URI' in os.environ: if 'REQUEST_URI' in os.environ:
@ -360,9 +364,14 @@ def Fill(item, cache, feedurl='/', fast=False):
else: else:
link = None link = None
# facebook, do nothing for now FIXME # facebook
if urlparse.urlparse(feedurl).netloc == 'graph.facebook.com': if urlparse.urlparse(feedurl).netloc == 'graph.facebook.com':
link = None match = lxml.html.fromstring(item.content).xpath('//a/@href')
if len(match) and urlparse.urlparse(match[0]).netloc != 'www.facebook.com':
link = match[0]
log(link)
else:
link = None
if link is None: if link is None:
log('no used link') log('no used link')
@ -423,6 +432,9 @@ def Gather(url, cachePath, options):
log(cache._hash) log(cache._hash)
# do some useful facebook work
feedify.PreWorker(url, cache)
if 'redirect' in cache: if 'redirect' in cache:
url = cache.get('redirect') url = cache.get('redirect')
log('url redirect') log('url redirect')
@ -466,7 +478,7 @@ def Gather(url, cachePath, options):
if style == 'normal': if style == 'normal':
rss = feeds.parse(xml) rss = feeds.parse(xml)
elif style == 'feedify': elif style == 'feedify':
feed = feedify.Builder(url, xml) feed = feedify.Builder(url, xml, cache)
feed.build() feed.build()
rss = feed.feed rss = feed.feed
elif style == 'html': elif style == 'html':
@ -526,7 +538,7 @@ if __name__ == '__main__':
HOLD = True HOLD = True
if 'HTTP_IF_NONE_MATCH' in os.environ: if 'HTTP_IF_NONE_MATCH' in os.environ:
if not options.force and time.time() - int(os.environ['HTTP_IF_NONE_MATCH'][1:-1]) < DELAY: if not options.force and not options.facebook and time.time() - int(os.environ['HTTP_IF_NONE_MATCH'][1:-1]) < DELAY:
print 'Status: 304' print 'Status: 304'
print print
log(url) log(url)
@ -538,6 +550,42 @@ if __name__ == '__main__':
else: else:
cachePath = os.path.expanduser('~') + '/.cache/morss' cachePath = os.path.expanduser('~') + '/.cache/morss'
if options.facebook:
facebook = Cache(cachePath, 'facebook', True)
# get real token from code
code = urlparse.parse_qs(urlparse.urlparse(url).query)['code'][0]
eurl = "https://graph.facebook.com/oauth/access_token?client_id={app_id}&redirect_uri={redirect_uri}&client_secret={app_secret}&code={code_parameter}".format(app_id=FBAPPID, app_secret=FBSECRET, code_parameter=code, redirect_uri="http://test.morss.it/:facebook/")
token = urlparse.parse_qs(urllib2.urlopen(eurl).read().strip())['access_token'][0]
# get long-lived access token
eurl = "https://graph.facebook.com/oauth/access_token?grant_type=fb_exchange_token&client_id={app_id}&client_secret={app_secret}&fb_exchange_token={short_lived_token}".format(app_id=FBAPPID, app_secret=FBSECRET, short_lived_token=token)
values = urlparse.parse_qs(urllib2.urlopen(eurl).read().strip())
ltoken = values['access_token'][0]
expires = int(time.time() + int(values['expires'][0]))
# get user id
iurl = "https://graph.facebook.com/me?fields=id&access_token={token}".format(ltoken)
user_id = json.loads(urllib2.urlopen(iurl).read())['id']
# do sth out of it
facebook.set('t'+ltoken, user_id)
facebook.set('e'+ltoken, expires)
facebook.set('u'+user_id, ltoken)
if 'o'+user_id not in token:
facebook.set('o'+user_id, ltoken)
if 'REQUEST_URI' in os.environ:
print 'Status: 200'
print 'Content-Type: text/plain'
print ''
print "token updated"
sys.exit(0)
if 'REQUEST_URI' in os.environ: if 'REQUEST_URI' in os.environ:
print 'Status: 200' print 'Status: 200'
print 'ETag: "%s"' % int(time.time()) print 'ETag: "%s"' % int(time.time())