[FIX] here's my fix to fbconnect() in Graph API v3.2

[oliveira-marcio]

fbconnect() in project.py isn't working as it is using v3.2 Graph API. Here's my solution that even doesn't requires local fb_client_secrets.json anymore:

@app.route('/fbconnect', methods=['POST'])
def fbconnect():
    if request.args.get('state') != login_session['state']:
        response = make_response(json.dumps('Invalid state parameter.'), 401)
        response.headers['Content-Type'] = 'application/json'
        return response
    access_token = request.data
    print "access token received %s " % access_token

    # Use token to get user info from API
    userinfo_url = "https://graph.facebook.com/me"

    url = '%s?access_token=%s&fields=name,id,email,picture' % (userinfo_url, access_token)
    h = httplib2.Http()
    result = h.request(url, 'GET')[1]
    # print "url sent for API access:%s"% url
    # print "API JSON result: %s" % result
    data = json.loads(result)
    login_session['provider'] = 'facebook'
    login_session['username'] = data["name"]
    login_session['email'] = data["email"]
    login_session['facebook_id'] = data["id"]

    # The token must be stored in the login_session in order to properly logout
    login_session['access_token'] = access_token

    # Get user picture
    login_session['picture'] = data["picture"]["data"]["url"]

    # see if user exists
    user_id = getUserID(login_session['email'])
    if not user_id:
        user_id = createUser(login_session)
    login_session['user_id'] = user_id

    output = ''
    output += '<h1>Welcome, '
    output += login_session['username']

    output += '!</h1>'
    output += '<img src="'
    output += login_session['picture']
    output += ' " style = "width: 300px; height: 300px;border-radius: 150px;-webkit-border-radius: 150px;-moz-border-radius: 150px;"> '

    flash("Now logged in as %s" % login_session['username'])
    return output