/
app.py
1323 lines (1140 loc) · 32 KB
/
app.py
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'''
Server-side WaterGem application.
Written for Google App Engine. Persist data to Google Datastore.
'''
import os, webapp2, jinja2, re, hashlib, hmac, random, datetime, json
from datetime import date
import string, ast
from webapp2 import redirect_to
from google.appengine.ext import ndb
# third party lib
import bleach
template_dir = os.path.join(os.path.dirname(__file__), "templates")
jinja_env = jinja2.Environment(loader=jinja2.FileSystemLoader(template_dir),
autoescape=True, auto_reload=True)
jinja_env.globals['url_for'] = webapp2.uri_for
class Handler(webapp2.RequestHandler):
''' Handle HTTP requests and serve appropriate pages/code
'''
def write(self, *a, **kw):
''' Write a response
'''
self.response.out.write(*a, **kw)
def render_str(self, template, **params):
''' Render a jinja template
'''
t = jinja_env.get_template(template)
return t.render(params)
def render(self, template, **kw):
''' Render a jinja template to browser by writing it to response
'''
self.write(self.render_str(template, **kw))
# define datastore models
class User(ndb.Model):
''' Datastore model for one app "user"
'''
username = ndb.StringProperty(required = True)
lc_username = ndb.StringProperty(required = True)
email = ndb.StringProperty(required = True)
password = ndb.StringProperty(required = True)
foundgems = ndb.KeyProperty(repeated = True)
usedgems = ndb.KeyProperty(repeated = True)
class Country(ndb.Model):
''' Datastore model for one country
'''
name = ndb.StringProperty(required = True)
cities = ndb.KeyProperty(repeated = True)
class City(ndb.Model):
''' Datastore model for one city
'''
name = ndb.StringProperty(required = True)
country = ndb.KeyProperty(required = True)
neighborhoods = ndb.KeyProperty(repeated = True)
class Neighborhood(ndb.Model):
''' Datastore model for one neighborhood
'''
name = ndb.StringProperty(required = True)
city = ndb.KeyProperty(required = True)
gems = ndb.KeyProperty(repeated = True)
class Gem(ndb.Model):
''' Datastore model for one gem
'''
name = ndb.StringProperty(required = True)
location = ndb.GeoPtProperty(required = True)
neighborhood = ndb.KeyProperty(required = True)
prices = ndb.FloatProperty(repeated = True)
picture = ndb.BlobProperty()
uv = ndb.BooleanProperty(required = True)
ozone = ndb.BooleanProperty(required = True)
confirmed = ndb.BooleanProperty(required = True)
company = ndb.StringProperty()
notes = ndb.StringProperty()
gemfinder = ndb.KeyProperty()
gemusers = ndb.KeyProperty(repeated = True)
### initial pop data
LOCALES = {
"Thailand":
{"Bangkok":
{"Phra Nakhon":[],
"Dusit":[],
"Nong Chok":[],
"Bang Rak":[
{
"name":"Generic Gem",
"location":"13.730723, 100.51499",
"picname":"",
"prices":[],
"company":"",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"Side alley off of Charoen Krung Road with Old Town Hostel at intersection."
}
],
"Bang Khen":[],
"Bang Kapi":[],
"Pathum Wan":[
{
"name":"Generic Gem",
"location":"13.736146, 100.52327",
"picname":"Bangkok10",
"prices":[1],
"company":"[Good Drinks]",
"uv":False,
"ozone":True,
"confirmed":True,
"notes":"If picture is accurate, please delete this note."
}
],
"Pom Prap Sattru Phai":[],
"Phra Khanong":[],
"Min Buri":[],
"Lat Krabang":[],
"Yan Nawa":[],
"Samphanthawong":[],
"Phaya Thai":[
{
"name":"Generic Gem",
"location":"13.77911, 100.53787",
"picname":"Bangkok7",
"prices":[1],
"company":"Tomorn Drinking",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":""
},
{
"name":"Generic Gem",
"location":"13.795133, 100.5498",
"picname":"Bangkok9",
"prices":[.75],
"company":"[Savelife]",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"If picture is accurate, please delete this note."
}
],
"Thon Buri":[],
"Bangkok Yai":[],
"Huai Khwang":[],
"Khlong San":[],
"Taling Chan":[],
"Bangkok Noi":[],
"Bang Khun Thian":[],
"Phasi Charoen":[],
"Nong Khaem":[],
"Rat Burana":[],
"Bang Phlat":[],
"Din Daeng":[],
"Bueng Kum":[],
"Sathon":[
{
"name":"Generic Gem",
"location":"13.718142, 100.52685",
"picname":"Bangkok17",
"prices":[],
"company":"",
"uv":True,
"ozone":False,
"confirmed":True,
"notes":"West side of the street"
}
],
"Bang Sue":[],
"Chatuchak":[],
"Bang Kho Laem":[],
"Prawet":[],
"Khlong Toei":[],
"Suan Luang":[],
"Chom Thong":[],
"Don Mueang":[],
"Ratchathewi":[
{
"name":"Generic Gem",
"location":"13.753356, 100.54607",
"picname":"Bangkok1",
"prices":[1,2,5,10],
"company":"[Clearly Pure]",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":""
},
{
"name":"Generic Gem",
"location":"13.7554083, 100.5420694",
"picname":"Bangkok2",
"prices":[1,5,10],
"company":"Water Net",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"Side street called Thanon C.S.T. off of Ratchaprarop Road next to Ratchaprarop Kitchen."
},
{
"name":"Generic Gem",
"location":"13.757015, 100.54206",
"picname":"Bangkok3",
"prices":[],
"company":"JR water",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"Side alley off of Ratchaprarop Road."
},
{
"name":"Generic Gem",
"location":"13.757594, 100.54218",
"picname":"Bangkok4",
"prices":[1],
"company":"MK Express",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"Side alley off of Ratchaprarop Road."
},
{
"name":"Generic Gem",
"location":"13.758816, 100.54254",
"picname":"Bangkok5",
"prices":[1,5,10],
"company":"Win Sent",
"uv":True,
"ozone":False,
"confirmed":True,
"notes":"Side street at intersection of Ratchaprarop Road and Rang Nam Road."
},
{
"name":"Generic Gem",
"location":"13.762113, 100.54044",
"picname":"Bangkok6",
"prices":[1,2,5,10],
"company":"[TP Group BKK]",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"Left side of driveway of Sabaai Place condos/apartments."
},
{
"name":"Generic Gem",
"location":"13.760931, 100.54316",
"picname":"Bangkok8",
"prices":[],
"company":"[unknown]",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"North/south side street reachable from Ratchaprarop Road."
},
{
"name":"Generic Gem",
"location":"13.760336, 100.54323",
"picname":"",
"prices":[],
"company":"[unknown]",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"North/south side street reachable from Ratchaprarop Road."
},
{
"name":"Generic Gem",
"location":"13.759964, 100.54326",
"picname":"",
"prices":[.75],
"company":"",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"North/south side street reachable from Ratchaprarop Road."
},
{
"name":"Generic Gem",
"location":"13.759585, 100.54315",
"picname":"",
"prices":[],
"company":"",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"North/south side street reachable from Ratchaprarop Road."
},
{
"name":"Generic Gem",
"location":"13.75923, 100.54318",
"picname":"",
"prices":[],
"company":"",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"North/south side street reachable from Ratchaprarop Road."
},
{
"name":"Generic Gem",
"location":"13.753386, 100.544264",
"picname":"Bangkok13",
"prices":[1],
"company":"[YAO WATER]",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"Next to Home Hug Hostel; across from 7/11."
},
{
"name":"Generic Gem",
"location":"13.753019, 100.54371",
"picname":"Bangkok14",
"prices":[1],
"company":"",
"uv":False,
"ozone":True,
"confirmed":True,
"notes":"This picture might need to be switched with the picture for the gem a few steps to the south."
},
{
"name":"Generic Gem",
"location":"13.752996, 100.5457",
"picname":"Bangkok15",
"prices":[1],
"company":"",
"uv":False,
"ozone":True,
"confirmed":True,
"notes":"Hidden just inside the wall separating a parking lot from the street."
},
{
"name":"Generic Gem",
"location":"13.752804, 100.54365",
"picname":"Bangkok16",
"prices":[1],
"company":"[Rainbow]",
"uv":True,
"ozone":False,
"confirmed":True,
"notes":"This picture might need to be switched with the picture for the gem a few steps to the north."
}
],
"Lat Phrao":[],
"Watthana":[
{
"name":"Generic Gem",
"location":"13.743452, 100.58091",
"picname":"Bangkok11",
"prices":[1],
"company":"",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":"On north/south street connecting to Baandon Mosque ferry canal stop."
},
{
"name":"Generic Gem",
"location":"13.743452, 100.58091",
"picname":"Bangkok12",
"prices":[1],
"company":"[Green PLUS]",
"uv":True,
"ozone":False,
"confirmed":True,
"notes":"On north/south street connecting to Baandon Mosque ferry canal stop."
}
],
"Bang Khae":[],
"Lak Si":[],
"Sai Mai":[],
"Khan Na Yao":[],
"Saphan Sung":[],
"Wang Thonglang":[],
"Khlong Sam Wa":[],
"Bang Na":[],
"Thawi Watthana":[],
"Thung Khru":[],
"Bang Bon":[]
},
"Chiang Mai":
{"Si Phum":[
{
"name":"Generic Gem",
"location":"18.79691, 98.983932",
"picname":"ChiangMai3",
"prices":[1,2,5,10],
"company":"",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":""
},
{
"name":"Generic Gem",
"location":"18.796073, 98.985908",
"picname":"ChiangMai4",
"prices":[],
"company":"",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":""
},
{
"name":"Generic Gem",
"country":"Thailand",
"city":"Chiang Mai",
"neighborhood":"Si Phum",
"location":"18.794154, 98.984288",
"picname":"ChiangMai9",
"prices":[.50],
"company":"[Water Fresh]",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":""
},
{
"name":"Generic Gem",
"country":"Thailand",
"city":"Chiang Mai",
"neighborhood":"Si Phum",
"location":"18.794114, 98.984294",
"picname":"ChiangMai10",
"prices":[1,5,10],
"company":"",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":""
},
{
"name":"Generic Gem",
"country":"Thailand",
"city":"Chiang Mai",
"neighborhood":"Si Phum",
"location":"18.793985, 98.983807",
"picname":"ChiangMai11",
"prices":[.50],
"company":"",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":""
},
{
"name":"Generic Gem",
"country":"Thailand",
"city":"Chiang Mai",
"neighborhood":"Si Phum",
"location":"18.79404, 98.983568",
"picname":"ChiangMai12",
"prices":[.50],
"company":"[Good Drinks]",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":""
},
{
"name":"Generic Gem",
"country":"Thailand",
"city":"Chiang Mai",
"neighborhood":"Si Phum",
"location":"18.792279, 98.982138",
"picname":"ChiangMai13",
"prices":[.50, 1, 2, 5, 10],
"company":"",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":""
}
],
"Phra Sing":[
{
"name":"Generic Gem",
"location":"18.784742, 98.988516",
"picname":"ChiangMai8",
"prices":[1],
"company":"",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":""
}
],
"Haiya":[
{
"name":"Generic Gem",
"location":"18.778776, 98.984087",
"picname":"ChiangMai7",
"prices":[1,2,5,10],
"company":"[System Technology]",
"uv":True,
"ozone":True,
"confirmed":True,
"notes":""
}
],
"Chang Moi":[
{
"name":"Generic Gem",
"location":"18.786477, 99.001771",
"picname":"ChiangMai14",
"prices":[1,2,5,10],
"company":"[View]",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":""
}
],
"Chang Khlan":[],
"Wat Ket":[],
"Chang Phueak":[
{
"name":"Generic Gem",
"location":"18.798959, 98.975058",
"picname":"ChiangMai15",
"prices":[1],
"company":"[fnr-nanowater]",
"uv":True,
"ozone":False,
"confirmed":True,
"notes":""
}
],
"Suthep":[
{
"name":"Generic Gem",
"location":"18.801171, 98.963313",
"picname":"ChiangMai1",
"prices":[1],
"company":"",
"uv":False,
"ozone":True,
"confirmed":True,
"notes":""
},
{
"name":"Generic Gem",
"location":"18.800649, 98.961743",
"picname":"ChiangMai2",
"prices":[.50],
"company":"",
"uv":True,
"ozone":False,
"confirmed":True,
"notes":""
},
{
"name":"Generic Gem",
"location":"18.802812, 98.963543",
"picname":"ChiangMai5",
"prices":[.50],
"company":"",
"uv":True,
"ozone":False,
"confirmed":True,
"notes":""
},
{
"name":"Generic Gem",
"location":"18.802584, 98.963213",
"picname":"ChiangMai6",
"prices":[.50],
"company":"",
"uv":False,
"ozone":False,
"confirmed":True,
"notes":""
}
],
"Mae Hia":[],
"Pa Daet":[],
"Nong Hoi":[],
"Tha Sala":[],
"Nong Pa Khrang":[],
"Fa Ham":[],
"Pa Tan":[],
"San Phi Suea":[]
}
}
}
### helper functions
def ndb_Model_to_Dict(modelInstance):
''' Override to_dict so can serialize unserializable ndb properties
(like GeoPtProperty, BlobProperty, and KeyProperty)
'''
dict = {}
properties = None
if type(modelInstance) is Gem:
properties = Gem._properties
elif type(modelInstance) is User:
properties = User._properties
elif type(modelInstance) is Country:
properties = Country._properties
elif type(modelInstance) is City:
properties = City._properties
elif type(modelInstance) is Neighborhood:
properties = Neighborhood._properties
for property in properties:
if getattr(modelInstance, property):
if type(properties[property]) is ndb.GeoPtProperty:
dict[property] = str(getattr(modelInstance, property))
elif type(properties[property]) is ndb.BlobProperty:
dict[property] = getattr(modelInstance, property).\
encode('base64')
elif type(properties[property]) is ndb.KeyProperty:
thisKeyProperty = getattr(modelInstance, property)
serializedKeyProperty = None
if type(thisKeyProperty) is list:
serializedKeyProperty = []
for keyModelInstance in thisKeyProperty:
# guard against nones
if keyModelInstance:
thisKeyArray = []
keyKind = keyModelInstance.kind()
keyId = keyModelInstance.id()
thisKeyArray.append(keyKind)
thisKeyArray.append(keyId)
serializedKeyProperty.append(thisKeyArray)
else:
# guard against nones
if thisKeyProperty:
serializedKeyProperty = thisKeyProperty.pairs()
dict[property] = serializedKeyProperty
else:
dict[property] = getattr(modelInstance, property)
else:
dict[property] = None
# apparently 'key' is not in Model._properties
thisKey = []
thisKeyKind = modelInstance.key.kind()
thisKeyId = modelInstance.key.id()
thisKey.append(thisKeyKind)
thisKey.append(thisKeyId)
dict["key"] = thisKey
return dict
def make_salt():
''' Create salt for a hashed password
'''
return ''.join(random.choice(string.letters) for x in xrange(5))
def make_pw_hash(name, pw, salt=None):
''' Create a salted hash for a password
'''
if not salt:
salt = make_salt()
h = hashlib.sha256(name + pw + salt).hexdigest()
return '%s,%s' % (h, salt)
def correct_pw(name, pw, h):
''' Check if given password matches the hashed password for a user
'''
salt = h.split(",")[1]
return h == make_pw_hash(name, pw, salt)
# set signin regexes and validators
USER_RE = re.compile(r"^[a-zA-Z0-9_-]{3,20}$")
def valid_username(username):
''' Determine whether valid username
'''
return USER_RE.match(username)
SPECIAL_CHAR_RE = re.compile(r"[\!@\#\$%\^&\*]")
NUMBER_RE = re.compile(r"[0-9]")
LOWER_CASE_RE = re.compile(r"[a-z]")
UPPER_CASE_RE = re.compile(r"[A-Z]")
def valid_password(password):
''' Determine whether valid password
'''
if len(password) < 6:
return False
if len(password) > 20:
return False
if not SPECIAL_CHAR_RE.search(password):
return False
if not NUMBER_RE.search(password):
return False
if not LOWER_CASE_RE.search(password):
return False
if not UPPER_CASE_RE.search(password):
return False
return True
EMAIL_RE = re.compile(r"^[\S]+@[\S]+.[\S]+$")
def valid_email(email):
''' Determine whether valid email
'''
return EMAIL_RE.match(email)
SECRET = 'examplesecret'
def hash_str(s):
''' Return string hashed with a secret
'''
return hmac.new(SECRET, s).hexdigest()
def make_secure_val(s):
''' Create secure value from a string to hash(string+secret)
'''
return "%s|%s" % (s, hash_str(s))
# allows for '|' in the value
def check_secure_val(h):
''' Check if a value holds a string and hash(string+secret)
Would mean this value is (basically)
secure if we know we kept the secret between us and client/user
'''
li = h.split("|")
HASH = li[len(li)-1]
s = ""
for x in range(len(li)-1):
s += li[x]
if x < (len(li)-2):
s += "|"
if hash_str(s) == HASH:
return s
else:
return None
def getUserFromSecureCookie(username_cookie_val):
''' Check if "user logged in" cookie is secure
'''
username = None
if username_cookie_val:
username_cookie_val = check_secure_val(username_cookie_val)
if username_cookie_val:
username = username_cookie_val
return username
# define template servers
class Home(Handler):
''' Serve the homepage
'''
def get(self):
''' Respond to get request and render the homepage
'''
username = getUserFromSecureCookie(self.request.\
cookies.get("username"))
#
# only do after datastore clear to re-populate defaults
#
if not Country.query().get():
imgPath = os.getcwd() + "/images/"
for countryName in LOCALES:
countryObj = Country(name=countryName, cities=[])
countryObj.put()
for cityName in LOCALES[countryName]:
cityObj = City(name=cityName, country=countryObj.key,
neighborhoods=[])
cityObj.put()
for neighborhoodName in LOCALES[countryName][cityName]:
neighborhoodObj = Neighborhood(name=neighborhoodName,
city=cityObj.key, gems=[])
neighborhoodObj.put()
for gem in LOCALES[countryName][cityName][neighborhoodName]:
picture = None
if gem["picname"]:
thisImgPath = imgPath + gem["picname"] + ".jpg"
picture = open(thisImgPath, "rb").read()
newGem = Gem(name=gem["name"],
location=ndb.GeoPt(gem["location"]),
neighborhood=neighborhoodObj.key,
prices=gem["prices"], uv=gem["uv"],
ozone=gem["ozone"], confirmed=gem["confirmed"],
company=gem["company"], notes=gem["notes"],
gemusers=[], picture=picture)
newGem.put()
neighborhoodObj.gems.append(newGem.key)
neighborhoodObj.put()
cityObj.neighborhoods.append(neighborhoodObj.key)
cityObj.put()
countryObj.cities.append(cityObj.key)
countryObj.put()
self.render("home.html", username=username)
class NewGem(Handler):
''' Serve form to add a new Gem
'''
def get(self):
''' Respond to get request and render the new Gem form
'''
username = getUserFromSecureCookie(self.request.cookies.get("username"))
if not username:
return redirect_to("signin")
user = User.all().filter("username =", username).get()
self.render("newgem.html", username=username)
def post(self):
''' Respond to post request and either create a gem and redirect
to view the gem, or, if there is a problem, re-render the
form with all input still in place and messages indicating
if the input is valid or not
'''
username = getUserFromSecureCookie(self.request.cookies.get("username"))
if not username:
return redirect_to("signin")
users = User.all()
users.filter("username =", username)
user = users.get()
gemDict = {}
messages = {}
gemDict["user"] = user
messages["user"] = {"message": "User OK",
"validity": "valid"}
'''
gemDict["value"] = bleach.clean(self.request.get("value"))
if gemDict["value"]:
validate
else:
messages["value"] = {"message":
"Please provide value",
"validity": "invalid"}
for attr in gemDict:
if attr in messages:
if messages[attr]["validity"] == "invalid":
return self.render("newdream.html", gemDict=gemDict,
messages=messages, username=username)
# set values for datastore (some cannot be string)
# set the "point in time" user variables for this dream
gemDict["user_property"] = user.property
'''
gem = Gem(**gemDict)
gem.put()
return redirect_to("home")
#
# implement register and user after Udacity project
#
class Register(Handler):
''' Serve form for registering a new user
'''
def get(self):
''' Handle get request and render register form
'''
'''
redirect to homepage if signed in
'''
# countries = sorted(COUNTRIES, key=lambda s: s.lower())
username = getUserFromSecureCookie(self.request.cookies.get("username"))
if username:
return redirect_to("home")
self.render("register.html", countries=countries,
values=None, messages=None)
def post(self):
''' Handle post request and create new user, redirecting to home page.
If there is a problem, re-render form with all input still in place
and messages to user about input validity.
'''
username = getUserFromSecureCookie(self.request.cookies.get("username"))
if username:
return redirect_to("home")
userDict = {}
messages = {}
'''
userDict["value"] = bleach.clean(self.request.get("value"))
if userDict["value"]:
validate
else:
messages["value"] = {"message":
"Please provide value",
"validity": "invalid"}
for attr in userDict:
if attr in messages:
if messages[attr]["validity"] == "invalid":
return self.render("newdream.html", userDict=userDict,
messages=messages, username=username)
# set values for datastore (some cannot be string)
# set the "point in time" user variables for this dream
userDict["user_property"] = user.property
if hasInvalid:
# countries = sorted(COUNTRIES, key=lambda s: s.lower())
return self.render("register.html", countries=countries,
userDict=userDict, messages=messages)
# prepare arguments for User constructor
userDict.pop("verifypassword", None)
userDict["password"] = saltedpasshash
userDict["lc_username"] = userDict["username"].lower()
user = User(**userDict)
user.put()
# if more than one with this email or user name, delete this one
# and return invalid. datastore support for unique entity values
# is not intuitive
duplicate = False
users = User.all()
users.filter("username =", user.username)
numSameUsername = 0
for u in users.run():
numSameUsername += 1
if numSameUsername > 1:
messages["username"] = {"message": "Name already taken",
"validity": "invalid"}
user.delete()
duplicate = True
break
users = User.all()
users.filter("email =", user.email)
numSameEmail = 0
for u in users.run():
numSameEmail += 1
if numSameEmail > 1:
messages["email"] = {"message": "Email already in use",
"validity": "invalid"}