Add full FB API (Graph API) support
parent
e5fc9786f6
commit
3664879d92
80
feedify.py
80
feedify.py
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@ -11,6 +11,8 @@ import lxml.html
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import json
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import urlparse
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import time
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def toclass(query):
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pattern = r'\[class=([^\]]+)\]'
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repl = r'[@class and contains(concat(" ", normalize-space(@class), " "), " \1 ")]'
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@ -59,7 +61,6 @@ def formatString(string, getter, error=False):
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elif re.search(r'^([^{}<>" ]+)(?:<"([^>]+)">)?(.*)$', string):
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match = re.search(r'^([^{}<>" ]+)(?:<"([^>]+)">)?(.*)$', string).groups()
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rawValue = getter(match[0])
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print repr(rawValue)
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if not isinstance(rawValue, basestring):
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if match[1] is not None:
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out = match[1].join(rawValue)
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@ -76,9 +77,69 @@ def formatString(string, getter, error=False):
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else:
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return out
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def PreWorker(url, cache):
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if urlparse.urlparse(url).netloc == 'graph.facebook.com':
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facebook = cache.new('facebook', True)
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token = urlparse.parse_qs(urlparse.urlparse(url).query)['access_token'][0]
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if 't'+token not in facebook:
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# this token ain't known, look for info about it
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eurl = "https://graph.facebook.com/debug_token?input_token={token}&access_token={app_token}".format(token=token, app_token=morss.FBAPPTOKEN)
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data = json.loads(urllib2.urlopen(eurl).read())['data']
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app_id = str(data['app_id'])
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user_id = str(data['user_id'])
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expires = data['expires_at']
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short = 'issued_at' not in data
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facebook.set('t'+token, user_id)
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facebook.set('e'+token, expires)
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good = True
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# do some woodoo to know if we already have sth better
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if 'u'+user_id not in facebook:
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# grab a new one anyway, new user
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facebook.set('o'+user_id, token)
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good = True
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else:
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# maybe it's a better one
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last = facebook.get('u'+user_id)
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last_expires = facebook.get('e'+last, int)
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if expires > last_expires:
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# new is better
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good = True
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if good and short and app_id == morss.FBAPPID:
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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)
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values = urlparse.parse_qs(urllib2.urlopen(eurl).read().strip())
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token = values['access_token'][0]
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expires = int(time.time() + int(values['expires'][0]))
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facebook.set('t'+token, user_id)
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facebook.set('e'+token, expires)
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if good:
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facebook.set('u'+user_id, token)
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# hey look for a newer token and use it
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token = urlparse.parse_qs(urlparse.urlparse(url).query)['access_token'][0]
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user_id = facebook.get('t'+token)
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last = facebook.get('u'+user_id)
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original = facebook.get('o'+user_id)
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nurl = url.replace(token, last)
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ncache = url.replace(token, original)
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cache.set('redirect', nurl)
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cache.set('cache', ncache)
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class Builder(object):
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def __init__(self, link, data=None):
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def __init__(self, link, data=None, cache=False):
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self.link = link
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self.cache = cache
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if data is None:
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data = urllib2.urlopen(link).read()
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@ -167,3 +228,18 @@ class Builder(object):
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feedItem['updated'] = self.string(item, 'item_time')
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self.feed.items.append(feedItem)
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if urlparse.urlparse(self.link).netloc == 'graph.facebook.com':
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if self.cache:
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facebook = self.cache.new('facebook', True)
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token = urlparse.parse_qs(urlparse.urlparse(self.link).query)['access_token'][0]
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expires = facebook.get('e'+token, int)
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lifespan = expires - time.time()
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if lifespan < 5*24*3600:
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new = self.feed.items.append()
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new.title = "APP AUTHORISATION RENEWAL NEEDED"
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new.link = "https://www.facebook.com/dialog/oauth?client_id={app_id}&redirect_uri=http://test.morss.it/:facebook/".format(app_id=morss.FBAPPID)
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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)
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new.time = cache.get(expires, int)
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54
morss.py
54
morss.py
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@ -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
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MIMETYPE = { 'xml': ['text/xml', 'application/xml', 'application/rss+xml', 'application/rdf+xml', 'application/atom+xml'],
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'html': ['text/html', 'application/xhtml+xml']}
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FBAPPID = "<insert yours>"
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FBSECRET = "<insert yours>"
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FBAPPTOKEN = FBAPPID + '|' + FBSECRET
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PROTOCOL = ['http', 'https', 'ftp']
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if 'REQUEST_URI' in os.environ:
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@ -360,8 +364,13 @@ def Fill(item, cache, feedurl='/', fast=False):
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else:
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link = None
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# facebook, do nothing for now FIXME
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# facebook
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if urlparse.urlparse(feedurl).netloc == 'graph.facebook.com':
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match = lxml.html.fromstring(item.content).xpath('//a/@href')
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if len(match) and urlparse.urlparse(match[0]).netloc != 'www.facebook.com':
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link = match[0]
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log(link)
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else:
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link = None
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if link is None:
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@ -423,6 +432,9 @@ def Gather(url, cachePath, options):
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log(cache._hash)
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# do some useful facebook work
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feedify.PreWorker(url, cache)
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if 'redirect' in cache:
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url = cache.get('redirect')
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log('url redirect')
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@ -466,7 +478,7 @@ def Gather(url, cachePath, options):
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if style == 'normal':
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rss = feeds.parse(xml)
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elif style == 'feedify':
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feed = feedify.Builder(url, xml)
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feed = feedify.Builder(url, xml, cache)
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feed.build()
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rss = feed.feed
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elif style == 'html':
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@ -526,7 +538,7 @@ if __name__ == '__main__':
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HOLD = True
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if 'HTTP_IF_NONE_MATCH' in os.environ:
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if not options.force and time.time() - int(os.environ['HTTP_IF_NONE_MATCH'][1:-1]) < DELAY:
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if not options.force and not options.facebook and time.time() - int(os.environ['HTTP_IF_NONE_MATCH'][1:-1]) < DELAY:
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print 'Status: 304'
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print
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log(url)
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@ -538,6 +550,42 @@ if __name__ == '__main__':
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else:
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cachePath = os.path.expanduser('~') + '/.cache/morss'
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if options.facebook:
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facebook = Cache(cachePath, 'facebook', True)
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# get real token from code
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code = urlparse.parse_qs(urlparse.urlparse(url).query)['code'][0]
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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/")
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token = urlparse.parse_qs(urllib2.urlopen(eurl).read().strip())['access_token'][0]
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# get long-lived access token
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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)
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values = urlparse.parse_qs(urllib2.urlopen(eurl).read().strip())
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ltoken = values['access_token'][0]
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expires = int(time.time() + int(values['expires'][0]))
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# get user id
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iurl = "https://graph.facebook.com/me?fields=id&access_token={token}".format(ltoken)
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user_id = json.loads(urllib2.urlopen(iurl).read())['id']
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# do sth out of it
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facebook.set('t'+ltoken, user_id)
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facebook.set('e'+ltoken, expires)
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facebook.set('u'+user_id, ltoken)
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if 'o'+user_id not in token:
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facebook.set('o'+user_id, ltoken)
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if 'REQUEST_URI' in os.environ:
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print 'Status: 200'
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print 'Content-Type: text/plain'
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print ''
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print "token updated"
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sys.exit(0)
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if 'REQUEST_URI' in os.environ:
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print 'Status: 200'
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print 'ETag: "%s"' % int(time.time())
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