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api.py
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api.py
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import webapp2
import json
import entities
import datetime
import time
class API(webapp2.RequestHandler):
#
# Request handling, OPTIONS/GET/POST/DELETE
#
def options(self):
self.response.headers['Access-Control-Allow-Origin'] = '*'
self.response.headers['Access-Control-Allow-Methods'] = 'OPTIONS, HEAD, GET, POST, DELETE'
def get(self):
self.response.headers['Content-Type'] = 'application/json'
self.response.headers['Access-Control-Allow-Origin'] = '*'
mapping = {
'step' : self.get_steps,
'step.json' : self.get_steps,
'component' : self.get_components,
'component.json' : self.get_components,
'order' : self.get_orders,
'order.json' : self.get_orders
}
# Get called method
func = self.request.path_info[len("/api/"):]
# Check if method exists
if func not in mapping:
return self.abort(404)
args = {}
for argumentName in self.request.arguments():
args[argumentName] = self.request.get(argumentName)
mapping[func](args)
def post(self):
self.response.headers['Content-Type'] = 'application/json'
self.response.headers['Access-Control-Allow-Origin'] = '*'
mapping = {
'step' : self.update_step,
'step.json' : self.update_step,
'component' : self.update_component,
'component.json' : self.update_component,
'order' : self.update_order,
'order.json' : self.update_order,
'order/sell' : self.sell_order,
'order.json/sell' : self.sell_order,
'order/favourite' : self.add_order_to_favourites,
'order.json/favourite' : self.add_order_to_favourites
}
# Get called method
func = self.request.path_info[len("/api/"):]
# Check if method exists
if func not in mapping:
return self.abort(404)
# GAE issue, url encodes the body when fetching arguments ?!
body = self.request.body
args = {}
for argumentName in self.request.arguments():
args[argumentName] = self.request.get(argumentName)
self.request.body = body
mapping[func](args)
def delete(self):
self.response.headers['Content-Type'] = 'application/json'
self.response.headers['Access-Control-Allow-Origin'] = '*'
mapping = {
'step' : self.remove_step,
'step.json' : self.remove_step,
'component' : self.remove_component,
'component.json' : self.remove_component,
'order' : self.remove_order,
'order.json' : self.remove_order
}
# Get called method
func = self.request.path_info[len("/api/"):]
# Check if method exists
if func not in mapping:
return self.abort(404)
args = {}
for argumentName in self.request.arguments():
args[argumentName] = self.request.get(argumentName)
mapping[func](args)
#
# Utils
#
def checkApiKeyIsAdmin(self, apiKey):
if not apiKey:
return False
apiUser = entities.apiUser().getApiKey(apiKey)
if not apiUser or not apiUser.admin:
return False
return True
def checkRequiredKeys(self, dictionary, requiredKeys):
missingRequiredKey = False
for requiredKey in requiredKeys:
if requiredKey not in dictionary:
missingRequiredKey = True
return False if missingRequiredKey else True
def serializableDataFromComponent(self, component):
componentData = {
'name' : component.name,
'stock' : component.stock,
'price' : component.prix,
'id' : component.key().id()
}
return componentData
def serializableDataFromStep(self, step):
stepData = {
'name' : step.name,
'index' : step.number,
'type' : step.type,
'id' : step.key().id()
}
return stepData
def serializableDataFromOrder(self, order):
componentsIds = [componentKey.id() for componentKey in order.ingredient]
orderData = {
'dateCreated' : time.mktime(order.dateCommand.timetuple()),
'dateSold' : time.mktime(order.Sold.timetuple()) if order.Sold else None,
'components' : componentsIds,
'user' : order.User.key().name() if order.User else None,
'id' : order.key().id()
}
return orderData
def serializableDataFromFavourite(self, order):
componentsIds = [componentKey.id() for componentKey in order.ingredient]
orderData = {
'components' : componentsIds,
'user' : order.User.key().name() if order.User else None,
'name' : order.name,
'nbVote' : order.nbVote,
'id' : order.key().id()
}
return orderData
#
# GET methods
#
def get_steps(self, argumentMap):
steps = entities.apiStep().search(None)
stepsData = []
for step in steps:
stepData = self.serializableDataFromStep(step)
components = entities.apiComponent().compByStep(step.key().id())
componentsData = []
for component in components:
componentsData.append(self.serializableDataFromComponent(component))
stepData['components'] = componentsData
stepsData.append(stepData)
json.dump(stepsData, self.response)
def get_components(self, argumentMap):
components = entities.apiComponent().search(None)
componentsData = []
for component in components:
componentsData.append(self.serializableDataFromComponent(component))
json.dump(componentsData, self.response)
def get_orders(self, argumentMap):
# Check API key
apiKey = argumentMap.get('api_key')
if not apiKey:
return self.abort(403)
apiUser = entities.apiUser().getApiKey(apiKey)
if not apiUser:
return self.abort(403)
if 'filter' in argumentMap and argumentMap['filter'] == 'favourite':
if 'user' in argumentMap:
orders = entities.apifavoriteOrder().getUserfavOrder(argumentMap['user'], None)
else:
orders = entities.apifavoriteOrder().getTopFav(10)
json.dump([self.serializableDataFromFavourite(order) for order in orders], self.response)
elif 'filter' in argumentMap:
filters = {
'sold': lambda: entities.apiOrder().getSoldOrder(None),
'unsold': lambda: entities.apiOrder().getCurrentOrder(None)
}
filter = argumentMap['filter']
if filter not in filters:
return self.abort(400)
else:
if apiUser.admin:
# Fetch all orders
orders = [self.serializableDataFromOrder(order) for order in filters[filter]()]
else:
# Fetch only the user's orders
orders = [self.serializableDataFromOrder(order) for order in filters[filter]() if order.User and order.User.key() == apiUser.key()]
json.dump(orders, self.response)
elif 'user' in argumentMap:
user = entities.apiUser().get(argumentMap['user'])
if user == None:
return self.abort(400)
if apiUser.admin or apiUser.key() == user.key():
orders = [self.serializableDataFromOrder(order) for order in entities.apiOrder().getUserOrder(argumentMap['user'], None)]
json.dump(orders, self.response)
else:
return self.abort(403)
else:
# All orders of just a specific one
if 'id' in argumentMap:
order = entities.apiOrder().get(long(argumentMap['id']))
if apiUser.admin or (order.User and apiUser.key() == order.User.key()):
if order:
json.dump(self.serializableDataFromOrder(order), self.response)
else:
return self.abort(403)
else:
# Only an admin can list all orders
if apiUser.admin:
orders = entities.apiOrder().getAll(None)
else:
orders = entities.apiOrder().getUserOrder(apiUser.key().name(), None)
ordersData = []
for order in orders:
ordersData.append(self.serializableDataFromOrder(order))
json.dump(ordersData, self.response)
#
# POST methods
#
def update_step(self, argumentMap):
# Decode JSON
stepDescription = {}
try:
stepDescription = json.loads(self.request.body)
except ValueError:
return self.abort(400)
# Check API key
if not self.checkApiKeyIsAdmin(stepDescription.get('api_key')) and not self.checkApiKeyIsAdmin(argumentMap.get('api_key')):
return self.abort(403)
# Check parameters
requiredKeys = ['name', 'number', 'type']
if not self.checkRequiredKeys(stepDescription, requiredKeys):
return self.abort(400)
# Fetch elements
stepName = stepDescription.pop('name')
stepIndex = stepDescription.pop('number')
stepType = stepDescription.pop('type')
stepId = stepDescription.pop('id', None)
# Check type
if not stepType in ['multi', 'warning', 'one']:
return self.abort(400)
# If 'id' is in query string, update, otherwise add the new one
if stepId != None:
entities.apiStep().update(stepName, long(stepIndex), stepType, long(stepId))
self.response.write(json.dumps({ 'success': True }))
else:
entities.apiStep().add(stepName, long(stepIndex), stepType)
self.response.write(json.dumps({ 'success': True }))
def update_component(self, argumentMap):
# Decode JSON
componentDescription = {}
try:
componentDescription = json.loads(self.request.body)
except ValueError:
return self.abort(400)
# Check API key
if not self.checkApiKeyIsAdmin(componentDescription.get('api_key')) and not self.checkApiKeyIsAdmin(argumentMap.get('api_key')):
return self.abort(403)
# Check parameters
requiredKeys = ['name', 'stock', 'price', 'step']
if not self.checkRequiredKeys(componentDescription, requiredKeys):
return self.abort(400)
compName = componentDescription.pop('name')
compStock = componentDescription.pop('stock')
compPrice = componentDescription.pop('price')
compStep = componentDescription.pop('step')
compId = componentDescription.pop('id', None)
# If 'id' is in query string, update, otherwise add the new one
if compId != None:
entities.apiComponent().update(long(compId), compName, long(compStock), long(compStep), float(compPrice))
self.response.write(json.dumps({ 'success': True }))
else:
entities.apiComponent().add(compName, long(compStock), long(compStep), float(compPrice))
self.response.write(json.dumps({ 'success': True }))
def update_order(self, argumentMap):
# Decode JSON
orderData = {}
try:
orderData = json.loads(self.request.body)
except ValueError:
return self.abort(409)
# Check parameters
requiredKeys = ['components']
if not self.checkRequiredKeys(orderData, requiredKeys):
return self.abort(408)
orderComponents = orderData.pop('components')
orderDateCreation = orderData.pop('dateCreation', time.time())
orderDateSelling = orderData.pop('dateSelling', None)
orderId = orderData.pop('id', None)
orderFId = orderData.pop('fid', None)
# Check API key
if argumentMap.get('api_key'):
orderData['api_key'] = argumentMap.pop('api_key')
apiUser = None
if orderData.has_key('api_key'):
apiUser = entities.apiUser().getApiKey(orderData['api_key'])
if not apiUser:
return self.abort(407)
orderUser = apiUser.key().name()
else:
orderUser = None
# Build components list
componentsIds = []
steps = {}
for compId in orderComponents:
compQuantity = orderComponents[str(compId)]
# Fetch component
component = entities.apiComponent().get(long(compId))
if component == None:
return self.abort(406)
# Fetch step
if component.Step.key().id() not in steps:
step = entities.apiStep().get(component.Step.key().id())
if step == None:
return self.abort(405)
steps[component.Step.key().id()] = step
else:
step = steps[component.Step.key().id()]
# Check number of components for type `one`
if step.type == "one":
return self.abort(402)
# Decrease component stock
component.stock -= compQuantity
component.put()
for i in range(compQuantity):
componentsIds.append(long(compId))
# Favorite Hits
if orderFId != None:
favourite = entities.apifavoriteOrder().get(orderFId)
if not favourite:
return slef.abort(401)
favourite.nbVote += 1
favourite.put()
# Ajout/Update de l'order
if orderId != None:
if not apiUser or not apiUser.admin:
return self.abort(403)
order = entities.apiOrder().update(componentsIds, long(orderId), datetime.datetime.fromtimestamp(orderDateSelling), str(orderUser))
self.response.write(json.dumps({ 'orderId': order.key().id() }))
else:
order = entities.apiOrder().add(componentsIds, datetime.datetime.fromtimestamp(orderDateCreation), str(orderUser))
self.response.write(json.dumps({ 'orderId': order.key().id() }))
def sell_order(self, argumentMap):
# Decode JSON
data = {}
try:
data = json.loads(self.request.body)
except ValueError:
return self.abort(400)
# Check API key
if not self.checkApiKeyIsAdmin(data.get('api_key')) and not self.checkApiKeyIsAdmin(argumentMap.get('api_key')):
return self.abort(403)
# Get order id
if 'id' not in data:
return self.abort(400)
orderId = long(data['id'])
# Get sell date or set it to now
if 'date' in data:
dateSold = datetime.datetime.fromtimestamp(data['date'])
else:
dateSold = datetime.datetime.fromtimestamp(time.time())
# Set order as sold
entities.apiOrder().setSold(orderId, dateSold)
self.response.write(json.dumps({ 'success': True }))
def add_order_to_favourites(self, argumentMap):
# Decode JSON
data = {}
try:
data = json.loads(self.request.body)
except ValueError:
return self.abort(400)
# Check API key
if argumentMap.get('api_key'):
apiKey = argumentMap.pop('api_key')
else:
apiKey = data.get('api_key')
if not apiKey:
return self.abort(403)
apiUser = entities.apiUser().getApiKey(apiKey)
if not apiUser:
return self.abort(403)
# Get order id
if 'id' not in data:
return self.abort(400)
orderId = long(data['id'])
# Get the order itself
order = entities.apiOrder().get(orderId)
if order == None:
return self.abort(400)
# Get the name given to the favourite
if 'name' not in data:
return self.abort(400)
orderName = data['name']
# If the apiUser is an admin, he can specify another user who the order will be favourite to
user = data.get('user')
if apiUser.admin and user:
entities.apifavoriteOrder().add(order.ingredient, 0, user.key().name(), orderName)
else:
entities.apifavoriteOrder().add(order.ingredient, 0, apiUser.key().name(), orderName)
json.dump({'success': True}, self.response)
#
# DELETE methods
#
def remove_step(self, queryStringArguments):
# Check API key
if not self.checkApiKeyIsAdmin(queryStringArguments.get('api_key')):
return self.abort(403)
# Check parameters
requiredKeys = ['id']
if not self.checkRequiredKeys(queryStringArguments, requiredKeys):
return self.abort(400)
# Get Step id
stepId = queryStringArguments.pop('id')
# Delete step
entities.apiStep().delete(long(stepId))
json.dump({'success': True}, self.response)
def remove_component(self, queryStringArguments):
# Check API key
if not self.checkApiKeyIsAdmin(queryStringArguments.get('api_key')):
return self.abort(403)
# Check si l'id du component est present
requiredKeys = ['id']
if not self.checkRequiredKeys(queryStringArguments, requiredKeys):
return self.abort(400)
# Get component id
compId = queryStringArguments.pop('id')
# Delete component
entities.apiComponent().delete(long(compId))
json.dump({'success': True}, self.response)
def remove_order(self, queryStringArguments):
# Check API key
if not self.checkApiKeyIsAdmin(queryStringArguments.get('api_key')):
return self.abort(403)
# Check parameters
requiredKeys = ['id']
if not self.checkRequiredKeys(queryStringArguments, requiredKeys):
return self.abort(400)
# Get order id
orderId = queryStringArguments.pop('id')
# Delete order
entities.apiOrder().delete(long(orderId))
json.dump({'success': True}, self.response)