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main.py
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main.py
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import dwolla
import urlparse
import json
import webapp2
from webapp2_extras import sessions
from webapp2_extras import jinja2
from google.appengine.ext import db
from webapp2 import RequestHandler, WSGIApplication
class BaseHandler(RequestHandler):
def dispatch(self):
self.session_store = sessions.get_store(request=self.request)
try:
RequestHandler.dispatch(self)
finally:
self.session_store.save_sessions(self.response)
def base_url(self, secure=False):
o = urlparse.urlsplit(self.request.url)
scheme = 'https' if secure else o.scheme
if o.port:
return "%s://%s:%d" % (scheme, o.netloc, o.port)
return "%s://%s" % (scheme, o.netloc)
def app_url(self, path="/", secure=False):
return "%s%s" % (self.base_url(secure=secure), path)
def render_template(self, filename, **template_args):
self.response.write(self.jinja2.render_template(filename, **template_args))
@webapp2.cached_property
def jinja2(self):
return jinja2.get_jinja2(app=self.app)
@webapp2.cached_property
def session(self):
return self.session_store.get_session()
@webapp2.cached_property
def dwolla(self):
apikey = self.app.config['DWOLLA_API_KEY']
secret = self.app.config['DWOLLA_API_SECRET']
return dwolla.DwollaClientApp(apikey, secret)
class UserHandler(BaseHandler):
def dispatch(self):
self.session_store = sessions.get_store(request=self.request)
if not self.session.get('user'):
self.redirect(self.app_url('/login'))
self.user = db.get( db.Key(session['user']) )
try:
RequestHandler.dispatch(self)
finally:
self.session_store.save_sessions(self.response)
class LoginHandler(BaseHandler):
def get(self):
permissions = self.app.config["DWOLLA_API_PERMISSIONS"]
redirect_uri = self.app_url('/oauth_cb')
auth_url = self.dwolla.init_oauth_url(redirect_uri, permissions)
self.redirect(auth_url)
class DwollaOauthHandler(BaseHandler):
def get(self):
code = self.request.get("code")
redirect_uri = self.app_url('/oauth_cb')
token = self.dwolla.get_oauth_token(code, redirect_uri=redirect_uri)
api = dwolla.DwollaUser(token)
account = api.get_account_info()
self.session['user'] = account
self.session['account'] = str(account['Id'])
self.redirect("/")
class MainHandler(BaseHandler):
def get(self):
item_key = self.request.get('k')
try:
item = db.get(db.Key(item_key))
except:
return self.redirect(self.app_url("/new"))
apikey = self.app.config['DWOLLA_API_KEY']
secret = self.app.config['DWOLLA_API_SECRET']
gateway = dwolla.DwollaGateway(apikey, secret, self.app_url('/gateway'))
gateway.start_gateway_session()
gateway.add_gateway_product(item.account, item.amount, desc=item.text, qty = 1)
try:
url = gateway.get_gateway_URL(item.account, callback=self.app_url('/confirm'))
self.render_template('show.html', url=url, item=item)
except Exception as e:
self.session['account'] = item.account
self.session['amount'] = item.amount
self.session['text'] = item.text
self.redirect('/new?err='+str(e))
class LogoutHandler(BaseHandler):
def get(self):
if 'user' in self.session:
del self.session['user']
if 'account' in self.session:
del self.session['account']
if 'text' in self.session:
del self.session['text']
if 'amount' in self.session:
del self.session['amount']
self.redirect("/")
class NewHandler(BaseHandler):
def get(self):
err = self.request.get('err', None)
account = self.session.get('account', '000-000-0000')
self.render_template('new.html', account=account, error=err, session=self.session)
def post(self):
item = db.Expando()
item.account = self.request.get('dwolla_id')
item.text = self.request.get('text')
try:
amount = float(self.request.get('amount').replace("$", ""))
item.amount = amount
item.put()
self.redirect('/?k=%s' % item.key())
except:
amount = "1.0"
item.amount = amount
item.put()
self.session['account'] = item.account
self.session['amount'] = "0"
self.session['text'] = item.text
self.redirect('/new?err=Invalid%20Amount.')
class ConfirmHandler(BaseHandler):
def get(self):
self.render_template('confirm.html')
class GatewayHandler(BaseHandler):
def get(self):
err = self.request.get('error')
text = self.request.get('error_description')
self.render_template('gateway.html', error=err, text=text)
class PaidHandler(BaseHandler):
def get(self):
self.render_template(self.request)
import config
app_routes = [
('/', MainHandler),
('/login', LoginHandler),
('/logout', LogoutHandler),
('/oauth_cb', DwollaOauthHandler),
('/new', NewHandler),
('/confirm', ConfirmHandler),
('/gateway', GatewayHandler),
]
app = webapp2.WSGIApplication(app_routes,
config=config.dev,
debug=True
)