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main.py
620 lines (515 loc) · 19.2 KB
/
main.py
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import os
import re
import json
import math
import uuid
import base64
import random
import hashlib
import logging
import urllib2
import datetime
import mimetypes
import webapp2
import jinja2
import yaml
from google.appengine.ext import db
from google.appengine.api import users
#from google.appengine.ext import blobstore
import models
_path = os.path.dirname(__file__) or os.getcwd() #Guaranteed current directory
#Create a jinja environment for loading templates from the /views directory
_jinja = jinja2.Environment(
loader=jinja2.FileSystemLoader(os.path.join(_path, 'views')),
extensions=['jinja2.ext.autoescape']
)
JINJA = _jinja.get_template #To further simplify matters
#Facilitates simpler redirection templating
# - I use a redirection template so I can redirect with javascript
# and avoid form data conflicts that I've had in the past.
def REDIRECT(uri='/', time=1000):
return _jinja.get_template('redirect.html').render({
'uri': uri,
'time': time,
})
def user_get(instance):
sessionkey = instance.request.cookies.get('clarity-console-session', None)
if sessionkey:
logging.info(sessionkey)
session = models.Session.get(sessionkey)
if session:
return session.user
return None
def session_get(token):
if not token: return None
session = models.Session.all().filter('token =', token).get()
if not session: return None
if session.closed: return None
if datetime.datetime.utcnow() > session.expiration:
session.closed = True
session.put()
return None
return session
#Handler for the index page *highlights "IndexHandler"*
class IndexHandler(webapp2.RequestHandler):
def get(self):
self.response.write(JINJA('index.html').render())
#Handler for the admin console.
# - facilitates the logging in of admins
# - passes the user data to the console HTML template
class ConsoleHandler(webapp2.RequestHandler):
def get(self):
session = _APIHandler.session_from_token(self.request.cookies.get('clarity-console-session', ''))
if not session:
self.redirect('/login')
return
if not session.user.admin:
self.error(403)
self.response.write(JINJA('console-403.html').render())
return
sampledata = {}
#Generate some generic statistics for demonstration of the home screen
totalcount = float(models.Client.all().count())
malecount = float(models.Client.all().filter('sex =', 'male').count())
femalecount = float(models.Client.all().filter('sex =', 'female').count())
sampledata['male'] = math.floor(malecount / totalcount * 100.0)
sampledata['female'] = math.floor(femalecount / totalcount * 100.0)
values = {
'session': session,
'resolve': _APIModelHandler.resolve_properties,
'encode': APIJSONEncoder().encode,
'models': models,
'sampledata': sampledata,
}
self.response.write(JINJA('console.html').render(values))
def qr_link_callback(uri, rel):
#if uri.find('google') != -1:
#url = "%s?%s" % (settings.GOOGLE_CHART_URL, uri)
return urllib2.urlopen(uri).read()
#return uri
class QRHandler(webapp2.RequestHandler):
def get(self):
makepdf = self.request.get('pdf', '') == 'true'
markup = JINJA('qr.html').render({
'amount': int(self.request.get('amount', 0)),
'uuid': uuid,
'i': 0,
'script': ''
})
if makepdf:
self.response.headers['Content-Type'] = 'application/pdf'
pisa.CreatePDF(markup, self.response, link_callback=qr_link_callback)
else:
self.response.write(markup)
class ConsoleLoginHandler(webapp2.RequestHandler):
def get(self):
session = _APIHandler.session_from_token(self.request.cookies.get('clarity-console-session', ''))
if self.request.get('close', '') == 'true':
if session:
session.close()
self.response.delete_cookie('clarity-console-session')
self.response.write(REDIRECT('/'))
else:
if session:
self.response.write(REDIRECT('/console'))
else:
values = {
'request': self.request
}
#self.response.write(_jinja.get_template('login.html').render(values))
self.response.write(JINJA('login.html').render(values))
class CronHandler(webapp2.RequestHandler):
def get(self, action):
if action == 'prune':
for session in models.Session.all():
if datetime.datetime.utcnow() > session.expiration or session.closed:
session.delete()
else:
self.error(404)
return
datetime_format = '%Y-%m-%d %H:%M:%S'
date_format = '%Y-%m-%d'
class APIJSONEncoder(json.JSONEncoder):
def default(self, obj):
if isinstance(obj, datetime.datetime):
return obj.strftime(datetime_format)
elif isinstance(obj, datetime.date):
return obj.strftime(date_format)
elif isinstance(obj, db.Key):
return str(obj)
elif isinstance(obj, db.Model):
properties = obj.properties()
#Resolve the object to a dictionary
#(only works for explicitly defined properties)
kvs = db.to_dict(obj)
#Get implicitly defined references (this is such a bitch)
for attr in dir(obj):
if isinstance(getattr(obj, attr), db.Query):
kvs[attr] = list(getattr(obj, attr).run(keys_only=True))
kvs.pop('password', None)
kvs.pop('binary', None)
for key in kvs:
if key == 'dateofbirth':
kvs[key] = kvs[key].date()
kvs['id'] = obj.key()
return kvs
else:
try:
return json.JSONEncoder.default(self, obj)
except TypeError:
return 'CANNOT_SERIALIZE'
class APIJSONDecoder(json.JSONDecoder):
def decode(self, obj):
result = None
try:
result = datetime.strptime(obj, date_format).date
result = datetime.strptime(obj, datetime_format)
except: pass
if result: return result
return json.JSONDecoder.decode(self, obj)
class _APIHandler(webapp2.RequestHandler):
_errors = {}
with open('errors.yaml', 'r') as errorfile:
_errors = yaml.load(errorfile.read())
_secure = True
_restricted = ['remove',]
def route(self, action):
raw_arguments = self.request.arguments()
self.args = {}
self.is_json = False
if self.request.get('json', None):
self.is_json = True
logging.info('REQUEST_IS_JSON')
logging.info('REQUEST_JSON_BODY ' + repr(self.request.body))
try:
self.args = json.load(self.request.body_file, cls=APIJSONDecoder)
except ValueError:
logging.info('REQUEST_JSON_INVALID')
return self.error(400.104)
else:
try:
for argument in raw_arguments:
self.args[argument] = self.argDecode(argument, self.request.get(argument))
if 'pk' in raw_arguments:
self.args['value'] = self.argDecode(self.args['name'], self.args['value'])
except ValueError:
self.error(401)
return
#Remove the token argument and log it to the console
self.token = self.args.pop('token', None)
logging.info('REQUEST_TOKEN ' + repr(self.token))
#Log the arguments to assist with error debugging
logging.info('REQUEST_ARGS ' + repr(self.args))
if self._secure:
self.session = self.session_from_token(self.token)
if not self.session:
return self.error(403.3)
if action in self._restricted and not self.session.user.admin:
return self.error(403.4)
function = 'api_' + action
if hasattr(self, function):
result = getattr(self, function)()
if result: self.respond_json(result)
else:
self.error(404)
post = route
get = route
def error(self, floatcode):
intcode = int(math.floor(floatcode))
webapp2.RequestHandler.error(self, intcode)
logging.warning('ERROR_CODE ' + repr(floatcode))
if floatcode in self._errors:
json.dump(self._errors[floatcode], self.response, cls=APIJSONEncoder)
logging.warning('ERROR_MESSAGE ' + repr(self._errors[floatcode]))
def respond_json(self, data):
json.dump(data, self.response, cls=APIJSONEncoder, skipkeys=True)
@staticmethod
def argDecode(key, value):
#if key == 'password':
# return hashlib.md5(value).hexdigest()
if key == 'qrcode':
return value if re.match(r'clarity[a-f0-9]{32}$', value) is not None else None
if key == 'binary':
return base64.b64decode(value)
if key == 'dateofbirth':
return datetime.datetime.strptime(value, date_format).date()
try:
result = datetime.datetime.strptime(value, datetime_format)
return result
except: pass
if value == 'true':
return True
if value == 'false':
return False
return value
@staticmethod
def resolve_properties(instance):
out = {}
properties = instance.properties()
for name in properties:
if name == 'password': continue
try:
out[name] = getattr(instance, name)
except db.ReferencePropertyResolveError:
return []
out["id"] = instance.key()
return out
@staticmethod
def session_from_token(token):
if not token: return None
#session = models.Session.all().filter('token =', token).get()
try:
session = models.Session.get(token)
except db.BadKeyError:
return None
if not session: return None
if session.closed: return None
if datetime.datetime.utcnow() > session.expiration:
session.closed = True
session.put()
return None
return session
def session(self):
return self.session_from_token(self.args.get('token', ''))
class _APIModelHandler(_APIHandler):
_model = object
def _get_instances(self, throw_errors=True):
#If the singular ID argument is specified, return dat
if 'id' in self.args:
instance_key = self.args.get('id')
#Do a try catch on retrieving the instance
try:
instance = self._model.get(instance_key)
#Catch the typical Model.get errors, but only toss them into the HTTP well if told to
except db.BadKeyError: return self.error(404.1) if throw_errors else None
except db.KindError: return self.error(401.2) if throw_errors else None
#If you've made it this far, return the fruits of your labor
return instance
#If a list of IDs is give, do dat
if 'ids' in self.args:
keylist_raw = self.args.get('id')
#Decode the JSON list with a try-catch for invalid JSON
try:
keylist = json.loads(keylist_raw)
except ValueError: return self.error(401.2) if throw_errors else None
#Return those results. THANK YOU GOOGLE FOR MAKING THIS EASY!
return db.get(keylist)
#Wow you really fucked up if it got this far
return None
def api_create(self):
properties = self._model.properties()
valid = properties.keys()
fields = {}
#args = self.request.arguments()
args = self.args.keys()
for arg in args:
if arg == 'token': continue
if not arg in valid:
logging.info('INVALID ' + arg + ' ' + repr(self._model))
self.error(401)
return
value = self.args[arg]
if isinstance(properties[arg], db.ReferenceProperty):
if not isinstance(value, db.Model):
foreignModel = properties[arg].reference_class
foreignKey = value
try:
foreignInstance = foreignModel.get(foreignKey)
except:
self.error(401)
return
value = foreignInstance
elif arg == 'password':
value = hashlib.md5(value).hexdigest()
elif arg == 'admin':
value = True if value == 'true' else False
fields[arg] = value
instance = self._model(**fields)
instance.put()
json.dump({
'id': instance.key()
}, self.response, cls=APIJSONEncoder)
def api_get(self):
#Use that shiny new builtin method and the shiny new return system
return self._get_instances()
def api_query(self):
valid = self._model.properties().keys()
args = self.args
#args.pop('token')
runlimit = int(args.pop('limit', 100))
runoffset = int(args.pop('offset', 0))
query = self._model.all()
for arg in args:
if not arg in valid:
self.error(401)
return
query = query.filter(arg + ' =', self.request.get(arg, ''))
data = {
'count': query.count(),
'results': query.fetch(
limit = runlimit,
offset = runoffset
)
}
json.dump(data, self.response, skipkeys=True, cls=APIJSONEncoder)
def api_remove(self):
args = self.args
if 'id' in args:
#instancekey = self.request.get('id')
instancekey = args['id']
try:
instance = self._model.get(instancekey)
except db.BadKeyError:
self.error(404)
return
except db.KindError:
self.error(401)
return
instance.delete()
return
if 'ids' in args:
try:
#keylist = json.loads(self.request.get('ids'))
keylist = json.loads(args['ids'])
logging.info('KEYLIST '+ repr(keylist))
except ValueError:
self.error(401)
return
db.delete(keylist)
return
self.error(401)
def api_update(self):
#Retrieve request arguments
arguments = self.args
#Retrieve valid model properties
valid_properties = self._model.properties().keys()
#Get the ID, turn it into an instance, and deal with any errors
instance_key = arguments.pop('id', '')
if not instance_key: return self.error(401.1)
try:
instance = self._model.get(instance_key)
except db.BadKeyError:
return self.error(404.1)
except db.KindError:
return self.error(404.2)
#Iterate through given arguments and update the instance
for key in arguments:
if not key in valid_properties: return self.error(401.2)
setattr(instance, key, arguments[key])
#Finish the transaction
instance.put()
def api_consoleupdate(self):
args = self.args
instancekey = args['pk']
try:
instance = self._model.get(instancekey)
except db.BadKeyError:
self.error(404)
return
except db.KindError:
self.error(401)
return
prop = args['name']
value = args['value']
if not prop in self._model.properties().keys():
self.error(401)
return
setattr(instance, prop, value)
instance.put()
class APISessionHandler(_APIHandler):
_secure = False
def api_begin(self):
username = self.args.get('username', '')
password = self.args.get('password', '')
api_session = not self.args.get('console', '')
user = models.Provider.all().filter('username =', username).get()
if not user:
self.error(403.1)
return
password_hash = hashlib.md5(password).hexdigest()
if not password_hash == user.password:
self.error(403.2)
return
session = models.Session(
user = user,
api = api_session
)
session.expiration = session.creation + datetime.timedelta(days=1)
session.put()
#self.response.write(json.dumps({
# 'token': str(session.key()),
# 'provider': session.user
#}))
json.dump({
'token': session.key(),
'provider': session.user
}, self.response, skipkeys=True, cls=APIJSONEncoder)
def api_end(self):
token = self.token
if not token:
return
session = _APIHandler.session_from_token(token)
if not session:
return
session.closed = True
session.put()
class APIProviderHandler(_APIModelHandler):
_model = models.Provider
_restricted = [
'create',
'remove',
'console_update'
]
class APIHeadshotHandler(_APIModelHandler):
_model = models.Headshot
def api_download(self):
instancekey = self.args.get('id', '')
try:
instance = self._model.get(instancekey)
except db.BadKeyError:
self.error(404)
return
except db.KindError:
self.error(401)
return
self.response.headers['Content-Type'] = str(instance.mimetype)
self.response.write(instance.binary)
class APIClientHandler(_APIModelHandler):
_model = models.Client
def api_create(self):
image = self.args.pop('binary', None)
if image:
if self.is_json:
image = base64.b64decode(image)
#headshot = models.Headshot(binary=db.Blob(image))
headshot = models.Headshot()
#headshot.binary = db.Blob(image)
headshot.binary = image
headshot.put()
self.args['headshot'] = headshot
_APIModelHandler.api_create(self)
class APITicketHandler(_APIModelHandler):
_model = models.Ticket
#class APIServiceHandler(_APIModelHandler):
# _model = models.Service
class DummyHandler(_APIHandler):
_secure = False
def api_echo(self):
return self.args
class UserDummyHandler(_APIHandler): pass
#Delegating the various handlers to their respective paths
app = webapp2.WSGIApplication([
('/', IndexHandler),
('/console', ConsoleHandler),
('/console/qr', QRHandler),
('/login', ConsoleLoginHandler),
('/cron/(\w+)', CronHandler),
('/api/session_(\w+)', APISessionHandler),
('/api/provider_(\w+)', APIProviderHandler),
('/api/headshot_(\w+)', APIHeadshotHandler),
('/api/client_(\w+)', APIClientHandler),
('/api/ticket_(\w+)', APITicketHandler),
#('/api/service_(\w+)', APIServiceHandler),
('/test_(\w+)', DummyHandler),
('/usertest_(\w+)', UserDummyHandler),
], debug=True)