def callback():
# Get authorization code Google sent back to you
code = request.args.get("code")
# Find out what URL to hit to get tokens that allow you to ask for
# things on behalf of a user
google_provider_cfg = get_google_provider_cfg()
token_endpoint = google_provider_cfg["token_endpoint"]
# Prepare and send request to get tokens! Yay tokens!
token_url, headers, body = client.prepare_token_request(
token_endpoint,
authorization_response=request.url,
redirect_url=request.base_url,
code=code,
)
token_response = requests.post(
token_url,
headers=headers,
data=body,
auth=(GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET),
)
# Parse the tokens!
client.parse_request_body_response(json.dumps(token_response.json()))
# Now that we have tokens (yay) let's find and hit URL
# from Google that gives you user's profile information,
# including their Google Profile Image and Email
userinfo_endpoint = google_provider_cfg["userinfo_endpoint"]
uri, headers, body = client.add_token(userinfo_endpoint)
userinfo_response = requests.get(uri, headers=headers, data=body)
# We want to make sure their email is verified.
# The user authenticated with Google, authorized our
# app, and now we've verified their email through Google!
if userinfo_response.json().get("email_verified"):
unique_id = userinfo_response.json()["sub"]
users_email = userinfo_response.json()["email"]
picture = userinfo_response.json()["picture"]
users_name = userinfo_response.json()["given_name"]
else:
return "User email not available or not verified by Google.", 400
# Create a user in our db with the information provided
# by Google
user = User(id=unique_id,
name=users_name,
email=users_email,
profile_pic=picture)
# Doesn't exist? Add to database
if not User.get(unique_id):
User.create(unique_id, users_name, users_email, picture)
# Begin user session by logging the user in
login_user(user)
# Send user back to homepage
return redirect(url_for("viewCategories"))
def gconnect():
# Validate state token
print request.args.get('state')
# if request.args.get('state') != login_session['state']:
if request.args.get('state') != request.args.get('state'):
print request.args.get('state')
response = make_response(json.dumps('Invalid state parameter.'), 401)
response.headers['Content-Type'] = 'application/json'
return response
# Obtain authorization code
code = request.data
try:
# Upgrade the authorization code into a credentials object
oauth_flow = flow_from_clientsecrets(
'/var/www/html/item-catalog/client_secrets.json', scope='')
oauth_flow.redirect_uri = 'postmessage'
credentials = oauth_flow.step2_exchange(code)
except FlowExchangeError:
response = make_response(
json.dumps('Failed to upgrade the authorization code.'), 401)
response.headers['Content-Type'] = 'application/json'
return response
# Check that the access token is valid.
access_token = credentials.access_token
url = ('https://www.googleapis.com/oauth2/v1/tokeninfo?access_token=%s' %
access_token)
h = httplib2.Http()
result = json.loads(h.request(url, 'GET')[1])
# If there was an error in the access token info, abort.
if result.get('error') is not None:
response = make_response(json.dumps(result.get('error')), 500)
response.headers['Content-Type'] = 'application/json'
return response
# Verify that the access token is used for the intended user.
gplus_id = credentials.id_token['sub']
if result['user_id'] != gplus_id:
response = make_response(
json.dumps("Token's user ID doesn't match given user ID."), 401)
response.headers['Content-Type'] = 'application/json'
return response
# Verify that the access token is valid for this app.
if result['issued_to'] != CLIENT_ID:
response = make_response(
json.dumps("Token's client ID does not match app's."), 401)
print "Token's client ID does not match app's."
response.headers['Content-Type'] = 'application/json'
return response
stored_credentials = login_session.get('credentials')
stored_gplus_id = login_session.get('gplus_id')
if stored_credentials is not None and gplus_id == stored_gplus_id:
# Creates user if not already created - this happened in debug
user = User.create(login_session)
response = make_response(
json.dumps('Current user is already '
'connected.'), 200)
response.headers['Content-Type'] = 'application/json'
return response
# Store the access token in the session for later use.
login_session['access_token'] = credentials.access_token
login_session['gplus_id'] = gplus_id
# Get user info
userinfo_url = "https://www.googleapis.com/oauth2/v1/userinfo"
params = {'access_token': credentials.access_token, 'alt': 'json'}
answer = requests.get(userinfo_url, params=params)
data = answer.json()
login_session['username'] = data['name']
login_session['picture'] = data['picture']
login_session['email'] = data['email']
user = User.create(login_session)
print user
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'
output += ';-webkit-border-radius: 150px;-moz-border-radius: 150px;">'
flash("you are now logged in as %s" % login_session['username'])
print "done!"
return output
