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finalproject.py
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finalproject.py
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from flask import Flask, render_template, request, url_for, redirect, flash, jsonify, make_response
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from database_setup import Base, Restaurant, MenuItem, User
from flask import session as login_session
from oauth2client.client import flow_from_clientsecrets
from oauth2client.client import FlowExchangeError
import random, string
import httplib2
import json
import requests
import smtplib
app = Flask(__name__)
# Load client keys
CLIENT_ID = json.loads(open('client_secrets.json', 'r').read())['web']['client_id']
# Create database engine
engine = create_engine('sqlite:///restaurantmenuwithusers.db')
Base.metadata.bind = engine
DBSession = sessionmaker(bind=engine)
session = DBSession()
#Create anti-forgery state token
@app.route('/login')
def showLogin():
"""
Creating a route to let the user login with G+ or Facebook
:return: A HTML page that has options for the user to login with
"""
state = ''.join(random.choice(string.ascii_uppercase + string.digits) for x in range(32))
login_session['state'] = state
return render_template('login.html', STATE=state)
@app.route('/fbconnect', methods=['POST'])
def fbconnect():
"""
Creating a route to let the user connect with Facebook
:return: Once connected the user will see a message that they have been connected
The user will then be returned to the main page.
"""
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
# set the access token
access_token = request.data
# Exchange short lived token for long lived token
app_id = json.loads(open('fb_client_secrets.json', 'r').read())['web']['app_id']
app_secret = json.loads(open('fb_client_secrets.json', 'r').read())['web']['app_secret']
url = 'https://graph.facebook.com/oauth/access_token?grant_type=fb_exchange_token&client_id=%s&client_secret=%s&fb_exchange_token=%s' % (app_id,app_secret,access_token)
h = httplib2.Http()
result = h.request(url, 'GET')[1]
#strip expire tag from access token
token = result.split("&")[0]
the_access_token = token.split("=")[1]
url = 'https://graph.facebook.com/v2.2/me?%s' % token
h = httplib2.Http()
result = h.request(url, 'GET')[1]
data = json.loads(result)
login_session['provider'] = 'facebook'
login_session['username'] = data["name"]
login_session['email'] = data["email"]
login_session['facebook_id'] = data["id"]
login_session['access_token'] = the_access_token
#Get user picture
url = 'https://graph.facebook.com/v2.2/me/picture?%s&redirect=0&height=200&width=200' % token
h = httplib2.Http()
result = h.request(url, 'GET')[1]
data = json.loads(result)
login_session['picture'] = data["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
# set the output info
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
@app.route('/fbdisconnect', methods=['GET', 'POST', 'DELETE'])
def fbdisconnect():
facebook_id = login_session.get('facebook_id')
access_token = login_session.get('access_token')
if facebook_id is None:
response = make_response(json.dumps('Current user not connected.'), 401)
response.headers['Content-Type'] = 'application/json'
flash("User not connected.")
return redirect('/restaurants')
else:
url = 'https://graph.facebook.com/%s/permissions?access_token=%s' % (facebook_id, access_token)
h = httplib2.Http()
result = h.request(url, 'DELETE')[1]
# Resetting the user login with FB is now being done in the disconnect function.
# Items reset in the disconnect function are: ['username'], ['email'], ['picture'],
# ['user_id'] and ['facebook_id']
response = make_response(json.dumps('User successfully disconnected.'), 200)
response.headers['Content-Type'] = 'application/json'
flash("Your FB login session has been removed and you have been logged out.")
return redirect('/restaurants')
@app.route('/gconnect', methods=['POST'])
def gconnect():
"""
Connects the user with Google+ account
:return: Once connected this will return a flash message letting the user know they have connected
and redirect them to the main page.
"""
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
code = request.data
try:
# Upgrade the auth code into a credentials object
oauth_flow = flow_from_clientsecrets('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:
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['credentials'] = credentials.to_json()
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']
login_session['provider'] = 'google'
# Check to see if the user exists, if they do - continue, If they do not, create a user
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("you are now logged in as %s"%login_session['username'])
print "done!"
return output
# Disconnect user - Revoke a users token and reset the session
@app.route('/gdisconnect')
def gdisconnect():
# Only disconnect a connected user
credentials = login_session.get('credentials')
if credentials is None:
response = make_response(json.dumps('Current user not connected.'), 401)
response.headers['Content-Type'] = 'application/json'
return response
# Execute HTTP GET request to revoke current token
access_token = credentials.access_token
url = 'https://accounts.google.com/o/oauth2/revoke?token=%s' % access_token
h = httplib2.Http()
result = h.request(url, 'GET')[0]
if result['status'] == '200':
# Reset the user's session -- now being done in the disconnect function
# Items removed in the disconnect function are: ['credentials'], ['gplus_id'], ['username']
# ['email'] and ['picture']
response = make_response(json.dumps('User successfully disconnected.'), 200)
response.headers['Content-Type'] = 'application/json'
return response
else:
response = make_response(json.dumps('Failed to revoke token for given user.'), 400)
response.headers['Content-Type'] = 'application/json'
return response
# ***** JSON Routes *****
@app.route('/restaurants/JSON/', methods=['GET'])
def restaurant_JSON():
"""
:param restaurant_id:
:return: JSON representation of restaurants available.
"""
restaurants = session.query(Restaurant)
return jsonify(Restaurant=[restaurant.serialize for restaurant in restaurants])
@app.route('/restaurants/<int:restaurant_id>/menu/JSON/', methods=['GET'])
def restaurant_menu(restaurant_id):
"""
:param restaurant_id:
:return: shows all the menu items of a given restaurant by restaurant id in JSON format
"""
items = session.query(MenuItem).filter_by(restaurant_id=restaurant_id).all()
return jsonify(MenuItem=[item.serialize for item in items])
@app.route('/restaurants/<int:restaurant_id>/menu/<int:menu_id>/JSON/', methods=['GET'])
def menuItemJSON(restaurant_id, menu_id):
"""
:param restaurant_id:
:param menu_id:
:return: a JSON representation of a specific menu item from a specific restaurant.
"""
menuItem = session.query(MenuItem).filter_by(id=menu_id).one()
return jsonify(MenuItem=menuItem.serialize)
@app.route('/')
@app.route('/restaurants/')
def index():
"""
:return: all the restaurants that are in the database
:param -- none
"""
restaurants = session.query(Restaurant).all()
if 'user_id' not in login_session:
user = '' # Trying to enable guest mode
else:
user = getUserInfo(login_session['user_id'])
return render_template('final_main.html', restaurants=restaurants, User=user)
@app.route('/restaurants/<int:restaurant_id>/')
@app.route('/restaurants/<int:restaurant_id>/menu/')
def showRestaurant(restaurant_id):
"""
:param restaurant_id:
:return: shows the main page of a single restaurant
"""
restaurant = session.query(Restaurant).filter_by(id=restaurant_id).one()
items = session.query(MenuItem).filter_by(restaurant_id = restaurant.id)
creator = getUserInfo(restaurant.user_id)
if 'user_id' not in login_session:
user = '' # Trying to enable guest mode
else:
user = getUserInfo(login_session['user_id'])
return render_template('final_showrestaurant.html', restaurant=restaurant, items=items, CREATOR=creator, User=user)
@app.route('/restaurants/new/', methods=['GET', 'POST'])
def newRestaurant():
"""
:return: a form that allows the user to create a new restaurant
"""
if 'username' not in login_session:
flash('You must be logged in to create a restaurant.')
return redirect('/login')
if request.method == 'POST':
newRestaurant = Restaurant(name = request.form['name'], user_id=login_session['user_id'])
session.add(newRestaurant)
session.commit()
flash("New Restaurant Created")
return redirect('/')
else:
return render_template('final_newrestaurant.html')
@app.route('/restaurants/<int:restaurant_id>/edit/', methods=['GET', 'POST'])
def editRestaurant(restaurant_id):
"""
:param restaurant_id:
:return: allows the user to EDIT a restaurants name
"""
if 'username' not in login_session:
return redirect('/login')
restaurant = session.query(Restaurant).filter_by(id=restaurant_id).one()
creator = getUserInfo(restaurant.user_id)
if 'username' not in login_session or creator.id != login_session['user_id']:
flash('Only the creator of the restaurant can edit the restaurant name.')
return render_template('final_showrestaurant.html', restaurant = restaurant)
if request.method == 'POST':
restaurant = Restaurant(request.form['name'], user_id = login_session['user_id'])
session.add(restaurant)
session.commit()
flash("Restaurant successfully edited")
return redirect('/')
else:
return render_template('final_editrestaurant.html', restaurant=restaurant)
@app.route('/restaurants/<int:restaurant_id>/delete/', methods=['GET', 'POST'])
def deleteRestaurant(restaurant_id):
"""
:param restaurant_id:
:return: allows the user to delete a restaurant
"""
if 'username' not in login_session:
return redirect('/login')
restaurant = session.query(Restaurant).filter_by(id=restaurant_id).one()
creator = getUserInfo(restaurant.user_id)
if 'username' not in login_session or creator.id != login_session['user_id']:
flash('Only the creator of the restaurant can delete a restaurant.')
return render_template('final_showrestaurant.html', restaurant = restaurant)
if request.method == 'POST':
session.delete(restaurant)
session.commit()
flash("Restaurant successfully deleted")
return redirect("/")
else:
return render_template('final_deleterestaurant.html', restaurant = restaurant )
@app.route('/restaurants/<int:restaurant_id>/menu/new/', methods=['GET', 'POST'])
def newMenuItem(restaurant_id):
"""
:param restaurant_id:
:return: Allows the user to create a new menu item for the restaurant with the ID specified
"""
if 'username' not in login_session:
return redirect('/login')
# Get the restaurant, items and creator
restaurant = session.query(Restaurant).filter_by(id=restaurant_id).one()
items = session.query(MenuItem).filter_by(restaurant_id = restaurant.id)
creator = getUserInfo(restaurant.user_id)
# checks to see if the user is logged in or not
if 'username' not in login_session or creator.id != login_session['user_id']:
flash('Only the creator of the restaurant can create a new menu item.')
return render_template('final_showrestaurant.html', restaurant=restaurant, items=items, CREATOR=creator)
if request.method == 'POST':
newItem = MenuItem(name=request.form['name'])
newItem.price = request.form['price']
newItem.description = request.form['description']
newItem.course = request.form['course']
newItem.restaurant_id = restaurant_id
# newItem.user = login_session['user_id']
session.add(newItem)
session.commit()
flash("New Menu Item Created", "success")
return redirect( url_for('showRestaurant', restaurant_id = restaurant_id) )
else:
return render_template('final_newmenuitem.html', restaurant_id=restaurant_id)
@app.errorhandler(404)
def page_not_found(e):
"""
:param e for error code 404 Not Found:
:return: returns a 404 error page telling the user that there is nothing at the link they visited
Also has a return link to the main page.
"""
return render_template('404.html'), 404
@app.route('/restaurants/<int:restaurant_id>/menu/<int:menu_id>/edit/', methods=['GET', 'POST'])
def editMenuItem(restaurant_id, menu_id):
"""
:param restaurant_id:
:param menu_id:
:return: Allows the user to edit a menu item
"""
if 'username' not in login_session:
return redirect('/login')
restaurant = session.query(Restaurant).filter_by(id = restaurant_id).one()
editedItem = session.query(MenuItem).filter_by(id = menu_id).one()
creator = getUserInfo(restaurant.user_id)
user = getUserInfo(login_session['user_id'])
if 'username' not in login_session or creator.id != login_session['user_id']:
flash('Only the creator of the restaurant can edit a menu item.')
return render_template('final_showrestaurant.html', restaurant=restaurant, User=user, CREATOR=creator)
if request.method == 'POST':
editedItem.name = request.form['name']
editedItem.price = request.form['price']
editedItem.description = request.form['description']
editedItem.course = request.form['course']
editedItem.user = login_session['user_id']
session.add(editedItem)
session.commit()
flash("Item successfully edited")
return redirect( url_for('showRestaurant', restaurant_id = restaurant_id ) )
else:
return render_template('final_editmenuitem.html', editedItem=editedItem, restaurant=restaurant )
@app.route('/restaurants/<int:restaurant_id>/menu/<int:menu_id>/delete', methods=['GET', 'POST'])
def deleteMenuItem(restaurant_id, menu_id):
"""
:param restaurant_id:
:param menu_id:
:return: allows a user to delete a menu item from a restaurant
"""
if 'username' not in login_session:
return redirect('/login')
restaurant = session.query(Restaurant).filter_by(id = restaurant_id).one()
deletedItem = session.query(MenuItem).filter_by(id=menu_id).one()
creator = getUserInfo(restaurant.user_id)
user = getUserInfo(login_session['user_id'])
if 'username' not in login_session or creator.id != login_session['user_id']:
flash('Only the creator of the restaurant can delete a menu item.')
return render_template('final_showrestaurant.html', restaurant=restaurant, User=user, CREATOR=creator)
if request.method == 'POST':
session.delete(deletedItem)
session.commit()
flash("Item successfully deleted")
return redirect(url_for('showRestaurant', restaurant_id = restaurant_id))
else:
return render_template('final_deletemenuitem.html', item = deletedItem, restaurant = restaurant)
def getUserID(email):
"""
:param email:
:return: The user.id is returned based on the email address given
"""
try:
user = session.query(User).filter_by(email = email).one()
return user.id
except:
return None
def getUserInfo(user_id):
"""
Helper function to get the user information based on user_id
:param user_id:
"""
user = session.query(User).filter_by(id = user_id).one()
return user
def createUser(login_session):
"""
Gives the ability to create a new user.
:param login_session:
"""
newUser = User(name = login_session['username'], email = login_session['email'],
picture = login_session['picture'])
session.add(newUser)
session.commit()
user = session.query(User).filter_by(email = login_session['email']).one()
return user.id
@app.route('/contact/', methods=['GET', 'POST'])
def contactUs():
"""
Give the user a way to communicate with the creator of this site...ME!
P.S. This actually works so feel free to send an email if you're bored.
:return: A contact form to send mail to the creator ... ME!
"""
mail = smtplib.SMTP('smtp.gmail.com', 587)
mail.ehlo()
mail.starttls()
mail.login('mnickey@gmail.com', 'qubjqsxsscqikwdj')
if request.method == 'POST':
fromAddress = request.form['email_address']
contactMessage = request.form['message']
mail.sendmail(fromAddress, 'mnickey@gmail.com', contactMessage + " " + fromAddress)
mail.close()
flash("Your message was successfully sent. Someone will get back to you as soon as possible.")
return redirect(url_for('index'))
else:
return render_template('finalContact.html')
@app.route('/disconnect')
def disconnect():
"""
Give the ability to disconect a user after they have connected.
This will make use of the helper functions for both FB and G+, removing the proprietary login session information
then this will remove the login_session information that is common between the two.
:return:
"""
if 'provider' in login_session:
if login_session['provider'] == 'google':
gdisconnect()
del login_session['gplus_id']
del login_session['credentials']
if login_session['provider'] == 'facebook':
fbdisconnect()
del login_session['facebook_id']
del login_session['username']
del login_session['email']
del login_session['picture']
del login_session['user_id']
del login_session['provider']
flash("You have been successfully disconnected.")
return redirect(url_for('index'))
else:
flash("You were not logged in.")
return redirect(url_for('index'))
if __name__ == '__main__':
app.secret_key = 'super_secret_key'
app.debug = True
app.run(host = '0.0.0.0', port = 5000)