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gns_util.py
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gns_util.py
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import datetime
import hashlib
import os
import random
import string
import time
import models
from app_config import CONFIG
from django.utils import simplejson
from gns_response_codes import *
from google.appengine.api import mail
from google.appengine.ext.webapp import template
def writeTemplate(requestHandler, path, dict):
if not dict:
dict = {}
dict['config'] = CONFIG
dict['STATIC_URL'] = '/static/'
requestHandler.response.out.write(template.render(path, dict))
def getUserFromRequest(request):
"""Get the user from the request.
Returns:
(user, device)
"""
id = request.get('id')
email = request.get('email')
udid = request.get('udid')
appcode = request.get('appcode')
user = None
device = None
if id:
user = models.User.get_by_id(long(id))
else:
# TODO : do we really need to check in series like this?
if email:
user = models.User.gql("WHERE email = :1", email).get()
if not user and udid:
device = getDevice(udid, appcode)
if device:
user = device.user
return (user, device)
def getSubscriptionPlanEndDate(startTime, subscription):
"""Get the subscription plan end date for the given start time and subscription.
Returns: datetime.datetime
"""
t = startTime.timetuple()
days = t.tm_mday
months = t.tm_mon
years = t.tm_year
if subscription.time_unit == models.SUBSCRIPTION_TIME_UNIT.DAY:
days += subscription.time_unit_quantity
elif subscription.time_unit == models.SUBSCRIPTION_TIME_UNIT.MONTH:
months += subscription.time_unit_quantity
elif subscription.time_unit == models.SUBSCRIPTION_TIME_UNIT.YEAR:
years += subscription.time_unit_quantity
newtuple = (years, months, days, t.tm_hour, t.tm_min, t.tm_sec, 0, 0, t.tm_isdst)
return datetime.datetime.fromtimestamp(time.mktime(newtuple))
def writeUserOnlyPage(user, appcode=CONFIG['default_appcode']):
"""Returns simple HTML page with just the user."""
return "<html><body>" + writeUser(user) + "</body></html>"
def getDevice(udid, appname):
if not appname:
appname = CONFIG['default_appcode']
device = models.Device.gql("WHERE udid = :1 and appname = :2", udid, appname).get()
if not device and appname == CONFIG['default_appcode']:
device = models.Device.gql("WHERE udid = :1", udid).get()
if device and device.appname:
return None
return device
def writeUser(user, appcode=CONFIG['default_appcode']):
"""Returns HTML for a description of the given user.
Returns:
HTML string.
"""
t = {'user':user, 'subscriptions': user.subscription_set, 'devices': user.device_set, 'currentsub':user.currentSubscription(appcode)}
path = os.path.join(os.path.dirname(__file__), 'templates/user_status.html')
return template.render(path, t)
def generateCode(length):
"""Generate a random code of the given length.
Returns:
a string
"""
return ''.join(random.choice(string.ascii_uppercase) for x in range(length))
def createUserResponseDict(user, app):
"""Create a response dict for the given user.
Returns:
dict
"""
if not app:
app = 'efb'
subscription = user.currentSubscription(app)
responseDict = {}
#TODO Change back when done testing
usedTrial = 0
if user.usedtrial:
usedTrial = 1
responseDict["user"] = {"email": user.email, "usedtrial":usedTrial}
responseDict["code"] = SUCCESS
if subscription:
responseDict["subscription"] = subscription.getDict()
else:
lastSubscription = user.lastSubscription(app)
if lastSubscription:
responseDict['last_subscription'] = lastSubscription.getDict()
other_subs = user.otherSubscriptions(app)
responseDict['other_subscriptions'] = [s.getDict() for s in other_subs]
return responseDict
def handleErrorPurchasing(code, msg, request):
"""Handle a purchasing error.
Sends an email and dumps the error.
Returns:
dict of error code, message, and current time.
"""
#replymessage = mail.EmailMessage(sender="wibge@gmail.com")
#replymessage.to = "wibge@gmail.com"
#replymessage.html = str(msg) + " " + str(code) + " " + "<br>" + str(request) + "<br>" + str(datetime.datetime.today())
#replymessage.subject = "Error Purchasing"
#replymessage.send()
errorDict = {}
errorDict['code'] = code
errorDict['msg'] = msg
errorDict['datetime'] = str(datetime.datetime.today())
return simplejson.dumps(errorDict)
def addSubscriptionPlanToUser(user, subscriptionPlan, itunesReceipt, giftcode):
"""Add a subscription plan for the given user.
Returns:
new Subscription object
"""
sub = models.Subscription()
sub.user = user
sub.subscriptionPlan = subscriptionPlan
sub.giftcode = giftcode
sub.itunesReceipt = itunesReceipt
sub.appname = subscriptionPlan.appname
sub.trial = False
if subscriptionPlan.identifier == CONFIG['free_trial_identifier']:
sub.trial = True
lastSub = user.lastSubscription(sub.appname)
now = datetime.datetime.now()
if subscriptionPlan.dataset == CONFIG['default_dataset'] and lastSub and lastSub.endDate > now:
if lastSub.trial:
lastSub.endDate = now
lastSub.save()
sub.startDate = lastSub.endDate
else:
sub.startDate = now
if itunesReceipt and not subscriptionPlan.nonautorenewing:
# it's an apple auto renewing subscription
sub.startDate = datetime.datetime.strptime(itunesReceipt.purchase_date, '%Y-%m-%d %H:%M:%S Etc/%Z')
sub.endDate = itunesReceipt.expires_date
else:
sub.endDate = getSubscriptionPlanEndDate(sub.startDate, subscriptionPlan)
if giftcode:
giftcode.used = True
giftcode.email = user.email
giftcode.save()
sub.save()
return sub
def crypt(text):
"""Crypt the given text."""
return md5Hash(text)
def md5Hash(text):
"""Generate a md5 hash with the given text"""
return hashlib.md5(text).hexdigest()