/
project.py
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/
project.py
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#!/usr/bin/env python
from flask import Flask, render_template, request, redirect, jsonify, url_for
from flask import make_response, flash
from flask import session as login_session
from sqlalchemy import create_engine
from sqlalchemy.pool import SingletonThreadPool
from sqlalchemy.orm import sessionmaker
from oauth2client.client import flow_from_clientsecrets, FlowExchangeError
from database_setup import Base, Author, Books_Data, User
import httplib2
import json
import requests
import random
import string
CLIENT_ID = json.loads(
open('client_secrets.json', 'r').read())['web']['client_id']
app = Flask(__name__)
engine = create_engine('sqlite:///bookscatalogue.db')
Base.metadata.bind = engine
DBSession = sessionmaker(bind=engine)
session = DBSession()
@app.route('/login')
def showLogin():
state = ''.join(random.choice(string.ascii_uppercase + string.digits)
for x in xrange(32))
login_session['state'] = state
return render_template('login.html', STATE=state)
@app.route('/gconnect', methods=['POST'])
def gconnect():
# for Validate state token
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
# to Obtain authorization code
code = request.data
try:
# to Upgrade the authorization 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
# to Check that the access token gained 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 found 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 gained 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 application.
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_access_token = login_session.get('access_token')
stored_gplus_id = login_session.get('gplus_id')
if stored_access_token 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 the later use.
login_session['access_token'] = credentials.access_token
login_session['gplus_id'] = gplus_id
# Get the 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']
print data['email']
if session.query(User).filter_by(email=data['email']).count() != 0:
current_user = session.query(User).filter_by(email=data['email']).one()
else:
newUser = User(name=data['name'],
email=data['email'])
session.add(newUser)
session.commit()
current_user = newUser
login_session['user_id'] = current_user.id
print current_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;'
output += '-webkit-border-radius: 150px;-moz-border-radius: 150px;"> '
flash("you are now logged in as %s" % login_session['username'])
print "done!"
return output
# DISCONNECT - Revoke a current user's access token and then reset
@app.route('/gdisconnect')
def gdisconnect():
access_token = login_session['access_token']
print 'In gdisconnect access token is %s', access_token
print 'User name is: '
print login_session['username']
if access_token is None:
print 'Access Token is None'
response = make_response(
json.dumps('Current user not connected.'), 401)
response.headers['Content-Type'] = 'application/json'
return response
url = 'https://accounts.google.com/o/oauth2/revoke?token=%s' \
% login_session['access_token']
h = httplib2.Http()
result = h.request(url, 'GET')[0]
print 'result is '
print result
if result['status'] == '200':
del login_session['access_token']
del login_session['gplus_id']
del login_session['username']
del login_session['email']
del login_session['picture']
response = make_response(json.dumps('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
@app.route('/')
@app.route('/catalogue/')
def showCatalogue():
"""Show all Authors"""
author = session.query(Author).all()
return render_template('listdetail.html', tauthor=author)
@app.route('/aftercatalogue/')
def aftershowCatalogue():
"""Show all Authors with the edit , delete options"""
author = session.query(Author).all()
return render_template('listdetails.html', tauthor=author)
@app.route('/catalogue/new/', methods=['GET', 'POST'])
def newAuthor():
"""Add new Author"""
if 'username' not in login_session:
return redirect('/login')
user_id = login_session['user_id']
if request.method == 'POST':
newAuthor = Author(name=request.form['name'], user_id=user_id)
session.add(newAuthor)
flash('New Author %s Successfully Created' % newAuthor.name)
session.commit()
return redirect(url_for('aftershowCatalogue'))
else:
return render_template('createdetails.html')
@app.route('/catalogue/<int:author_id>/edit/', methods=['GET', 'POST'])
def editAuthor(author_id):
"""Edit Author"""
if 'username' not in login_session:
return redirect('/login')
user_id = login_session['user_id']
author = session.query(Author).filter_by(id=author_id).one()
if author.user_id != login_session['user_id']:
flash("""Author was created by another user and can only
be edited by creator""")
return redirect(url_for('aftershowCatalogue'))
if request.method == 'POST':
if request.form['name']:
author.name = request.form['name']
flash('Author Successfully Updated %s' % author.name)
return redirect(url_for('aftershowCatalogue'))
else:
return render_template('editauthor.html', author=author)
@app.route('/catalogue/<int:author_id>/delete/', methods=['GET', 'POST'])
def deleteAuthor(author_id):
"""Delete Author"""
if 'username' not in login_session:
return redirect('/login')
author = session.query(Author).filter_by(id=author_id).one()
if author.user_id != login_session['user_id']:
flash("""Author was created by another user and can only be
deleted by creator""")
return redirect(url_for('aftershowCatalogue'))
if request.method == 'POST':
session.delete(author)
flash('%s Successfully Deleted' % author.name)
session.commit()
return redirect(url_for('aftershowCatalogue', author_id=author_id))
else:
return render_template('authordelete.html', author=author)
@app.route('/catalogue/<int:author_id>/')
@app.route('/catalogue/<int:author_id>/item/')
def showBooks(author_id):
"""Show all Books"""
author = session.query(Author).filter_by(id=author_id).one()
book = session.query(Books_Data).filter_by(author_id=author_id).all()
return render_template('listdetailss.html', author=author, book=book)
@app.route('/catalogue/<int:author_id>/item/new', methods=['GET', 'POST'])
def newBook(author_id):
"""Add new Book"""
if 'username' not in login_session:
return redirect('/login')
user_id = login_session['user_id']
if request.method == 'POST':
newBook = Books_Data(bname=request.form['bname'],
genre=request.form['genre'],
desc=request.form['desc'],
author_id=author_id,
user_id=user_id)
session.add(newBook)
session.commit()
flash('%s Successfully Created' % (newBook.bname))
return redirect(url_for('showBooks', author_id=author_id))
else:
return render_template('listdetailsss.html', author_id=author_id)
return render_template('listdetailsss.html', tbook=author)
@app.route('/catalogue/<int:author_id>/item/<int:book_id>/edit',
methods=['GET', 'POST'])
def editBook(author_id, book_id):
"""Edit Book"""
if 'username' not in login_session:
return redirect('/login')
book = session.query(Books_Data).filter_by(bookid=book_id).one()
if book.user_id != login_session['user_id']:
flash("""Book was created by another user and can only be
edited by creator""")
return redirect(url_for('showBooks', author_id=author_id))
if request.method == 'POST':
if request.form['bname']:
book.bname = request.form['bname']
if request.form['desc']:
book.genre = request.form['genre']
if request.form['desc']:
book.desc = request.form['desc']
session.add(book)
session.commit()
flash('%s Successfully Updated' % (book.bname))
return redirect(url_for('showBooks', author_id=author_id))
else:
return render_template('editbook.html',
author_id=author_id,
book_id=book_id,
book=book)
@app.route('/catalogue/<int:author_id>/item/<int:book_id>/delete',
methods=['GET', 'POST'])
def deleteBook(author_id, book_id):
"""Delete Book"""
if 'username' not in login_session:
return redirect('/login')
book = session.query(Books_Data).filter_by(bookid=book_id).one()
if book.user_id != login_session['user_id']:
flash("""Book was created by another user and can only be
deleted by creator""")
return redirect(url_for('showBooks', author_id=author_id))
if request.method == 'POST':
session.delete(book)
session.commit()
flash('%s Successfully Deleted' % (book.bname))
return redirect(url_for('showBooks', author_id=author_id))
else:
return render_template('bookdelete.html',
author_id=author_id,
book=book)
@app.route('/author/JSON')
def authorsJSON():
"""Return JSON for all the authors"""
authors = session.query(Author).all()
return jsonify(authors=[c.serialize for c in authors])
@app.route('/author/<int:author_id>/JSON')
def authorBookJSON(author_id):
"""Return JSON of all the books for a author"""
author = session.query(Author).filter_by(id=author_id).one()
books = session.query(Books_Data).filter_by(
bookid=author_id).all()
return jsonify(Books=[i.serialize for i in books])
@app.route('/author/<int:author_id>/book/<int:book_id>/JSON')
def bookJSON(author_id, book_id):
"""Return JSON for a book"""
book = session.query(Books_Data).filter_by(bookid=book_id).one()
return jsonify(book=book.serialize)
if __name__ == '__main__':
app.secret_key = 'super_secret_key'
app.debug = True
app.run(host='0.0.0.0', port=5000)