diff --git a/feedify.py b/feedify.py
index 340e7f2..be43823 100644
--- a/feedify.py
+++ b/feedify.py
@@ -11,6 +11,8 @@ import lxml.html
import json
import urlparse
+import time
+
def toclass(query):
pattern = r'\[class=([^\]]+)\]'
repl = r'[@class and contains(concat(" ", normalize-space(@class), " "), " \1 ")]'
@@ -59,7 +61,6 @@ def formatString(string, getter, error=False):
elif re.search(r'^([^{}<>" ]+)(?:<"([^>]+)">)?(.*)$', string):
match = re.search(r'^([^{}<>" ]+)(?:<"([^>]+)">)?(.*)$', string).groups()
rawValue = getter(match[0])
- print repr(rawValue)
if not isinstance(rawValue, basestring):
if match[1] is not None:
out = match[1].join(rawValue)
@@ -76,9 +77,69 @@ def formatString(string, getter, error=False):
else:
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):
- def __init__(self, link, data=None):
+ def __init__(self, link, data=None, cache=False):
self.link = link
+ self.cache = cache
if data is None:
data = urllib2.urlopen(link).read()
@@ -167,3 +228,18 @@ class Builder(object):
feedItem['updated'] = self.string(item, 'item_time')
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.
Go!".format(new.link)
+ new.time = cache.get(expires, int)
diff --git a/morss.py b/morss.py
index 87c5113..1ff70f8 100644
--- a/morss.py
+++ b/morss.py
@@ -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'],
'html': ['text/html', 'application/xhtml+xml']}
+FBAPPID = ""
+FBSECRET = ""
+FBAPPTOKEN = FBAPPID + '|' + FBSECRET
+
PROTOCOL = ['http', 'https', 'ftp']
if 'REQUEST_URI' in os.environ:
@@ -360,9 +364,14 @@ def Fill(item, cache, feedurl='/', fast=False):
else:
link = None
- # facebook, do nothing for now FIXME
+ # facebook
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:
log('no used link')
@@ -423,6 +432,9 @@ def Gather(url, cachePath, options):
log(cache._hash)
+ # do some useful facebook work
+ feedify.PreWorker(url, cache)
+
if 'redirect' in cache:
url = cache.get('redirect')
log('url redirect')
@@ -466,7 +478,7 @@ def Gather(url, cachePath, options):
if style == 'normal':
rss = feeds.parse(xml)
elif style == 'feedify':
- feed = feedify.Builder(url, xml)
+ feed = feedify.Builder(url, xml, cache)
feed.build()
rss = feed.feed
elif style == 'html':
@@ -526,7 +538,7 @@ if __name__ == '__main__':
HOLD = True
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
log(url)
@@ -538,6 +550,42 @@ if __name__ == '__main__':
else:
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:
print 'Status: 200'
print 'ETag: "%s"' % int(time.time())