Lisandro,
the ratio of users without email is so low that i would just block the
user telling them that they must grant email permissions to use your
site. detect that there was no email returned from facebook and send a
response to the browser that prompts the user to try again and add the
email permission.
in the event that this is the login of an existing user, your database
will already have an email and maybe you prompt them to verify that the
saved email is still correct.
good luck!
cfh
On 10/29/13, 8:05 , Lisandro Rostagno wrote:
Thanks, you're right, Facebook documentation is very poor and is often
outdated. That page says that anyone can send you an email from external
mail services (gmail, yahoo, etc).. but I tried that and I receive a
response from Facebook saying that there is a permission problem... I
suppose that the user can choose not to be contacted outside facebook :/
So in my case, I have no way to avoid this problem. Maybe creating that
"fake" email address and asking the user to enter a valid emai addres and
then verify it... but that deviates from the goal of "register/login with
facebook", that should be a simple and fast method, mostly for the user.
Anyway, thanks a lot for the help and the answers!
Off the topic, I'm starting to think that Facebook is kind of an ·"internet
explorer" experience for developers, where developers have to work extra to
cover inconsistency or problems like this :/
2013/10/29 Michele Comitini <michele.comit...@gmail.com>
this is what they say:
https://www.facebook.com/help/224049364288051
facebook documentation for developers is incomplete, so to say, on many
occasions...
mic
2013/10/29 Lisandro Rostagno <rostagnolisan...@gmail.com>
Thanks for the answer. The problem is that I really need a valid email
address, because in my site I use that email to send important
notifications to the user.
I already tried with "facebook mail", that is, joining the user name with
"@facebook.com". But it didn't work. When I send an email to a facebook
mail, I receive an automatic response from Facebook saying that there is a
permission problem. I understand that @facebook email addresses are only
for communication between Facebook users :/
2013/10/29 Michele Comitini <michele.comit...@gmail.com>
create a fake email...
something like the following (check for errors I did not test it)
if user:
if not user.has_key('email') or user['email'] == '' or user['email']
is None:
user['email'] = user['first_name'] + '.' + user['last_name'] + '.'
+ user['id'] + '@facebook.email.is.not.valid'
2013/10/29 Lisandro <rostagnolisan...@gmail.com>
I see, your theory is pretty much accurate (sorry for my english, I
hope that phrase is correct). What I mean is that your theory is the most
addecuate for this case, thought it can't be proved. Actually, there is
another error that says something about access token been already used, but
happens very little.
My question now is: ¿can I avoid this situation and do something?
I have this in one of my models:
if session.login_facebook:
from globales import FaceBookAccount
auth.settings.login_form = FaceBookAccount(globals())
And this is te dfinition of FaceBookAccount class:
class FaceBookAccount(OAuthAccount):
AUTH_URL="https://graph.facebook.com/oauth/authorize";
TOKEN_URL="https://graph.facebook.com/oauth/access_token";
def __init__(self, g):
OAuthAccount.__init__(self, g, current.FACEBOOK_APP_ID,
current.FACEBOOK_APP_SECRET_KEY, \
self.AUTH_URL, self.TOKEN_URL, scope='email')
self.graph = None
def get_user(self):
if not self.accessToken():
return None
if not self.graph:
self.graph = GraphAPI((self.accessToken()))
user = None
try:
user = self.graph.get_object("me")
except GraphAPIError, e:
self.session.token = None
self.graph = None
if user:
return dict(first_name='%s %s' %(user['first_name'],
user['last_name']), \
username=user['id'], registration_id=user['id'],
email=user['email'])
I would like to, at least, show an error message to the user saying
that something went wrong trying to get his/her email from Facebook, and
that he/she should try again. Can't figure it out how to do it :/
El martes, 29 de octubre de 2013 03:48:36 UTC-3, Christian Foster Howes
escribió:
the problem is that facebook is not returning an email.
i know, i know, you told facebook that email is required and you can't
reproduce such a state. i'm 100% with you, but i see the exact same
behavior with my users! i suspect that these are actually returning users
who granted email access when they first created an account, but then they
changed their facebook permissions to remove email access and when they
return to your site and login, facebook lets them (because they have
before), but does not give you the email address. i have not confirmed
this theory, but it's my running theory.
other potential issue is the expiration of the facebook access token.
those rules changed this spring and i'm not 100% up to date on the rules
right now.
cfh
On Monday, October 28, 2013 10:57:06 AM UTC-7, Lisandro wrote:
I'm having a similar problem with KeyError: 'email'.
I have a site in production that uses oauth2 and offers the
possibility of register/login using personal facebook account.
I created a Facebook app and set permissions to get user's email (so
I can create the account on my site). Everything works perfect, lots of
users have registered in my site using their Facebook accounts. Even myself.
However, there are some error tickets created with this error of
"KeyError:email". First I thought that some users didn't let the
application get their emails, but that's not possible. When you try to log
in my site using Facebook, facebook tells you that te application will get
your email, and you only can accept or decline. If you decline, you're not
registered. And if you accept, my site gets your email and creates the
account.
So, I don't know which could be the problem. This is the traceback of
the error:
Traceback (most recent call last):
File "/var/www/vendosimple/gluon/**restricted.py", line 212, in restricted
exec ccode in environment
File "/var/www/vendosimple/**applications/init/controllers/**default.py", line
645, in <module>
File "/var/www/vendosimple/gluon/**globals.py", line 194, in <lambda>
self._caller = lambda f: f()
File "/var/www/vendosimple/**applications/init/controllers/**default.py",
line 380, in user
form = auth()
File "/var/www/vendosimple/gluon/**tools.py", line 1250, in __call__
return getattr(self, args[0])()
File "/var/www/vendosimple/gluon/**tools.py", line 2128, in login
cas_user = cas.get_user()
File "applications/init/modules/**globales.py", line 41, in get_user
username=user['id'], registration_id=user['id'], email=user['email'])
KeyError: 'email'
Any ideas?
El martes, 7 de junio de 2011 01:00:33 UTC-3, Massimo Di Pierro
escribió:
I am not familiar with facebook email.
If this (username + @facebook) is avlid email, perhaps web should
set
that even if username=True
On Jun 6, 7:15 pm, "Sebastian E. Ovide" <sebastian.ov...@gmail.com>
wrote:
I do not see major pros and cons... it is a matter of
precerences...
1) setting username=True in auth.define_tables(), define_tables
will add a
field on the table (username) and if that field is present,
authentication
will be done using username. Personally I prefer to use emails
rather than
usernames, and as I am using BOTH web2py auth and facebook at the
same time
for authentication (two different links for different logins), I
didn't want
to force my application to use usernames.... so I've used the
second option
2) in this case I'm adding an email created by the facebook
username +
@facebook and therefore auth will keep using email for
authentication...
no web2py code has been touched, although I'm extending Auth and
overriding navbar to display a second login link (facebook) and
hide
change_password when it is logged in via facebook.
if session.login_method_used is None:
if not 'change_password' in self.settings.actions_
**disabled:
bar.insert(-1, ' | ')
bar.insert(-1, password)
and in my controller:
def user():
if auth.user_id:
if request.args[0] == 'logout':
session.login_method_used=None
else:
if request.args[0] == 'login':
session.login_method_used=None
elif request.args[0] == 'login_fb':
session.login_method_used="**facebook"
request.args[0]='login'
if session.login_method_used=="**facebook":
auth.settings.login_form=**FaceBookAccount(globals())
return dict(form=auth())
On Mon, Jun 6, 2011 at 11:16 PM, Massimo Di Pierro <
massimo.dipie...@gmail.com> wrote:
if there is agreement on one, please send me a patch.
On Jun 6, 4:31 pm, "Sebastian E. Ovide" <
sebastian.ov...@gmail.com>
wrote:
Hi Mic,
thanks for that.
actually I've debugged web2py and figure it out for myself.
There are two
easy ways to fix it (I've tried to add them to the book, but
my account
doesn't allow me to edit it)
1) set username=False in auth.define_tables()
2) add email = user['username']+"@facebook.**com<http://facebook.com>"
in the return of def
get_user
On Mon, Jun 6, 2011 at 10:02 PM, Michele Comitini <
michele.comit...@gmail.com> wrote:
Hi Sebastian,
copy from this example:
http://code.google.com/r/**michelecomitini-**
facebookaccess/source/browse<http://code.google.com/r/michelecomitini-facebookaccess/source/browse>.
..
<
http://code.google.com/r/**michelecomitini-**
facebookaccess/source/browse<http://code.google.com/r/michelecomitini-facebookaccess/source/browse>..
.>and
let me know
mic
2011/6/6 Sebastian E. Ovide <sebastian.ov...@gmail.com>
Hi All,
just wondering if the section "OAuth2.0 and Facebook" of
the book is
up to
date?
I following it's instructions but I'm getting an "Internal
error"
to reproduce
1) get last web2py 1.196.3
2) follow the instructions from the book
2.a) get facebook and place it in modules
2.b) copy the code from the book
2.c) replace "from facebook import GraphAPI" with "facebook
=
local_import('facebook')"
2.d) replace facebook. to GraphAPIError and GraphAPI
2.e) replace YOUR_CLIENT_ID and YOUR_CLIENT_SECRET with
real data
3) set your app URL tohttp://localhost:8000/**welcome/
Is something missing ?
When I click login, it redirect me to facebook, where I can
login, and
then it redirects me tohttp://localhost:8000/**welcome/
At that point I get an error:
TRACEBACK
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
Traceback (most recent call last):
File "/home/sebas/Downloads/web2py/**gluon/restricted.py",
line 184,
in restricted
exec ccode in environment
File
"/home/sebas/Downloads/web2py/**applications/welcome/**controllers/default.py"
<
http://localhost:8000/admin/**default/edit/welcome/**
controllers/default.py<http://localhost:8000/admin/default/edit/welcome/controllers/default.py>>,
line 71, in <module>
File "/home/sebas/Downloads/web2py/**gluon/globals.py",
line 137, in
<lambda>
/ self._caller = lambda f: f()
File
"/home/sebas/Downloads/web2py/**applications/welcome/**controllers/default.py"
<
http://localhost:8000/admin/**default/edit/welcome/**
controllers/default.py<http://localhost:8000/admin/default/edit/welcome/controllers/default.py>>,
line 33, in user
return dict(form=auth())
File "/home/sebas/Downloads/web2py/**gluon/tools.py",
line 1070, in
__call__
return getattr(self,args[0])()
File "/home/sebas/Downloads/web2py/**gluon/tools.py",
line 1626, in
login
user =
self.get_or_create_user(table_**user._filter_fields(cas_user))
File "/home/sebas/Downloads/web2py/**gluon/tools.py",
line 1360, in
get_or_create_user
user = self.db(table_user[username] ==
keys[username]).select().**first()
KeyError: 'email'
any ideas , thanks
--
Sebastian E. Ovide
--
Sebastian E. Ovide
--
Sebastian E. Ovide
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
---
You received this message because you are subscribed to the Google
Groups "web2py-users" group.
To unsubscribe from this group and stop receiving emails from it, send
an email to web2py+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
---
You received this message because you are subscribed to a topic in the
Google Groups "web2py-users" group.
To unsubscribe from this topic, visit
https://groups.google.com/d/topic/web2py/qKmygzAdyME/unsubscribe.
To unsubscribe from this group and all its topics, send an email to
web2py+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
---
You received this message because you are subscribed to the Google Groups
"web2py-users" group.
To unsubscribe from this group and stop receiving emails from it, send an
email to web2py+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
---
You received this message because you are subscribed to a topic in the
Google Groups "web2py-users" group.
To unsubscribe from this topic, visit
https://groups.google.com/d/topic/web2py/qKmygzAdyME/unsubscribe.
To unsubscribe from this group and all its topics, send an email to
web2py+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
---
You received this message because you are subscribed to the Google Groups "web2py-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to web2py+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
