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handlers.py
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handlers.py
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import os
from google.appengine.ext import webapp
from google.appengine.ext.webapp import template
from google.appengine.ext.webapp.util import run_wsgi_app
from google.appengine.ext import db
from google.appengine.api import users
from google.appengine.api import images
from google.appengine.api.labs import taskqueue
from google.appengine.api.urlfetch import DownloadError
from google.appengine.api.datastore_errors import BadRequestError
from google.appengine.runtime import DeadlineExceededError
from os import environ
import json
import urllib
import logging
import time
import foursquarev2 as foursquare
import constants
import time
from datetime import datetime
from scripts import manage_foursquare_data
from gheatae import color_scheme, tile, provider
from models import UserInfo, UserVenue, MapImage
class IndexHandler(webapp.RequestHandler):
def get(self):
welcome_data = {
'user': '',
'userinfo': '',
'url': users.create_login_url(self.request.uri),
'real_name': '',
'photo_url': constants.default_photo,
'is_ready': False
}
sidebar_data = {
'color_scheme_dict': color_scheme.color_schemes,
'color_scheme': constants.default_color,
}
map_data = {
'citylat': constants.default_lat,
'citylng': constants.default_lng,
'zoom': constants.default_zoom,
'width': constants.default_dimension,
'height': constants.default_dimension,
'domain': environ['HTTP_HOST'],
'static_url': 'http://maps.google.com/maps/api/staticmap?center=40.738152838822934%2C-73.9822769165039&format=png&zoom=13&key=ABQIAAAAwA6oEsCLgzz6I150wm3ELBSujOi3smKLcjzph36ZE8UXngM_5BTs-xHblsuwK8V9g8bZ_PTfOWR1Fg&sensor=false&size=640x640',
'mapimage_url': 'map/%s.png' % 'ag93aGVyZS1kby15b3UtZ29yEQsSCE1hcEltYWdlGNL0_wIM',
}
user = users.get_current_user()
if user:
welcome_data['user'] = user
welcome_data['url'] = users.create_logout_url(self.request.uri)
userinfo = UserInfo.all().filter('user =', user).get()
if userinfo:
welcome_data['userinfo'] = userinfo
welcome_data['real_name'] = userinfo.real_name
welcome_data['photo_url'] = userinfo.photo_url
welcome_data['is_ready'] = userinfo.is_ready
sidebar_data['color_scheme'] = userinfo.color_scheme
map_data['citylat'] = userinfo.citylat
map_data['citylng'] = userinfo.citylng
os_path = os.path.dirname(__file__)
self.response.out.write(template.render(os.path.join(os_path, 'templates/all_header.html'), {'key': constants.google_maps_apikey}))
self.response.out.write(template.render(os.path.join(os_path, 'templates/private_welcome.html'), welcome_data))
if user and userinfo:
if userinfo.has_been_cleared:
self.response.out.write(template.render(os.path.join(os_path, 'templates/information.html'), {'user': user, 'has_been_cleared': userinfo.has_been_cleared}))
elif userinfo.is_authorized:
self.response.out.write(template.render(os.path.join(os_path, 'templates/private_sidebar.html'), sidebar_data))
else:
self.response.out.write(template.render(os.path.join(os_path, 'templates/private_unauthorized.html'), None))
else:
self.response.out.write(template.render(os.path.join(os_path, 'templates/information.html'), {'user': user, 'has_been_cleared': False}))
self.response.out.write(template.render(os.path.join(os_path, 'templates/private_map.html'), map_data))
self.response.out.write(template.render(os.path.join(os_path, 'templates/all_footer.html'), None))
class InformationWriter(webapp.RequestHandler): #NOTE this defaults to the has_been_cleared case for now, since that's the only one that's used
def get(self):
user = users.get_current_user()
os_path = os.path.dirname(__file__)
self.response.out.write(template.render(os.path.join(os_path, 'templates/information.html'), {'user': user, 'has_been_cleared': True}))
class AuthHandler(webapp.RequestHandler):
def _get_new_fs_and_credentials(self):
consumer_key, oauth_secret, url = constants.get_oauth_strings()
fs = foursquare.FoursquareAuthHelper(key=consumer_key, secret=oauth_secret, redirect_uri=url)
return fs, None
def get(self):
user = users.get_current_user()
if user:
code = self.request.get("code")
if code:
old_userinfos = UserInfo.all().filter('user =', user).fetch(500)
db.delete(old_userinfos)
fs, credentials = self._get_new_fs_and_credentials()
try:
user_token = fs.get_access_token(code)
userinfo = UserInfo(user = user, token = user_token, secret = None, is_ready=False, is_authorized=True, level_max=int(3 * constants.level_const))
except DownloadError, err:
if str(err).find('ApplicationError: 5') >= 0:
pass # if something bad happens on OAuth, then it currently just redirects to the signup page
#TODO find a better way to handle this case, but it's not clear there is a simple way to do it without messing up a bunch of code
else:
raise err
try:
manage_foursquare_data.update_user_info(userinfo)
manage_foursquare_data.fetch_and_store_checkins_next(userinfo, limit=50)
except foursquare.FoursquareRemoteException, err:
if str(err).find('403 Forbidden') >= 0:
pass # if a user tries to sign up while my app is blocked, then it currently just redirects to the signup page
#TODO find a better way to handle this case, but it's not clear there is a simple way to do it without messing up a bunch of code
else:
raise err
except DownloadError:
pass #TODO make this better, but I'd rather throw the user back to the main page to try again than show the user an error.
self.redirect("/")
else:
fs, credentials = self._get_new_fs_and_credentials()
self.redirect(fs.get_authentication_url())
else:
self.redirect(users.create_login_url(self.request.uri))
class StaticMapHandler(webapp.RequestHandler):
def get(self):
path = environ['PATH_INFO']
if path.endswith('.png'):
raw = path[:-4] # strip extension
try:
assert raw.count('/') == 2, "%d /'s" % raw.count('/')
foo, bar, map_key = raw.split('/')
except AssertionError, err:
logging.error(err.args[0])
return
else:
logging.error("Invalid path: " + path)
return
mapimage = convert_map_key(map_key)
if mapimage:
self.response.headers['Content-Type'] = 'image/png'
self.response.out.write(mapimage.img)
else:
self.redirect("/")
class TileHandler(webapp.RequestHandler):
def get(self):
user = users.get_current_user()
if user:
path = environ['PATH_INFO']
if path.endswith('.png'):
raw = path[:-4] # strip extension
try:
assert raw.count('/') == 4, "%d /'s" % raw.count('/')
foo, bar, layer, zoom, yx = raw.split('/') #tile is ignored, is just here to prevent caching
assert yx.count(',') == 1, "%d /'s" % yx.count(',')
y, x = yx.split(',')
assert zoom.isdigit() and x.isdigit() and y.isdigit(), "not digits"
zoom = int(zoom)
x = int(x)
y = int(y)
assert constants.min_zoom <= zoom <= constants.max_zoom, "bad zoom: %d" % zoom
except AssertionError, err:
logging.error(err.args[0])
self.respondError(err)
return
else:
self.respondError("Invalid path")
return
start = datetime.now()
try:
new_tile = tile.GoogleTile(user, zoom, x, y)
img_data = new_tile.image_out()
self.response.headers['Content-Type'] = "image/png"
self.response.out.write(img_data)
except DeadlineExceededError, err:
logging.warning('%s error - started at %s, failed at %s' % (str(err), start, datetime.now()))
self.response.headers['Content-Type'] = "image/png"
self.response.out.write('')
class PublicPageHandler(webapp.RequestHandler):
def get(self):
path = environ['PATH_INFO']
if path.endswith('.html'):
raw = path[:-5] # strip extension
try:
assert raw.count('/') == 2, "%d /'s" % raw.count('/')
foo, bar, map_key = raw.split('/')
except AssertionError, err:
logging.error(err.args[0])
return
else:
logging.error("Invalid path: " + path)
return
mapimage = convert_map_key(map_key)
if mapimage:
welcome_data = {
'real_name': '',
'photo_url': constants.default_photo,
}
sidebar_data = {
'domain': environ['HTTP_HOST'],
'public_url': 'public/%s.html' % mapimage.key(),
}
map_data = {
'domain': environ['HTTP_HOST'],
'static_url': mapimage.static_url,
'mapimage_url': 'map/%s.png' % mapimage.key(),
}
userinfo = UserInfo.all().filter('user =', mapimage.user).get()
if userinfo:
welcome_data['real_name'] = userinfo.real_name
welcome_data['photo_url'] = userinfo.photo_url
#welcome_data['checkin_count'] = userinfo.checkin_count
os_path = os.path.dirname(__file__)
self.response.out.write(template.render(os.path.join(os_path, 'templates/all_header.html'), None))
self.response.out.write(template.render(os.path.join(os_path, 'templates/public_welcome.html'), welcome_data))
self.response.out.write(template.render(os.path.join(os_path, 'templates/public_sidebar.html'), sidebar_data))
self.response.out.write(template.render(os.path.join(os_path, 'templates/public_map.html'), map_data))
self.response.out.write(template.render(os.path.join(os_path, 'templates/all_footer.html'), None))
else:
self.redirect("/")
class StaticMapHtmlWriter(webapp.RequestHandler):
def get(self):
user = users.get_current_user()
if user:
mapimage = MapImage.all().filter('user =', user).get()
if mapimage:
template_data = {
'domain': environ['HTTP_HOST'],
'static_url': mapimage.static_url,
'mapimage_url': 'map/%s.png' % mapimage.key(),
'public_url': 'public/%s.html' % mapimage.key(),
'timestamp': str(time.time())
}
os_path = os.path.dirname(__file__)
self.response.out.write(template.render(os.path.join(os_path, 'templates/static_map.html'), template_data))
else:
self.response.out.write("")
class UserReadyEndpoint(webapp.RequestHandler):
def get(self):
user = users.get_current_user()
if user:
userinfo = UserInfo.all().filter('user =', user).get()
if userinfo:
self.response.out.write(str(userinfo.has_been_cleared) + ',' + str(userinfo.is_ready) + ',' + str(userinfo.checkin_count))
return
self.response.out.write('error')
class MapDoneEndpoint(webapp.RequestHandler):
def get(self):
user = users.get_current_user()
if user:
mapimage = MapImage.all().filter('user =', user).get()
if mapimage:
self.response.out.write(str(mapimage.tiles_remaining == 0))
return
self.response.out.write('error')
def convert_map_key(map_key):
try:
return db.get(map_key)
except BadRequestError, err:
if err.message == 'app s~where-do-you-go-hrd cannot access app where-do-you-go\'s data':
old_key = db.Key(map_key)
new_key = db.Key.from_path(old_key.kind(), old_key.id())
return db.get(new_key)
else:
raise BadRequestError, err
def main():
application = webapp.WSGIApplication([('/', IndexHandler),
('/go_to_foursquare', AuthHandler),
('/authenticated', AuthHandler),
('/tile/.*', TileHandler),
('/map/.*', StaticMapHandler),
('/public/.*', PublicPageHandler),
('/information', InformationWriter),
('/static_map_html', StaticMapHtmlWriter),
('/user_is_ready/.*', UserReadyEndpoint),
('/map_is_done/', MapDoneEndpoint)],
debug=True)
constants.provider = provider.DBProvider()
run_wsgi_app(application)
if __name__ == '__main__':
main()