Python Response.headers['ETag']方法代码示例

# 需要导入模块: from pyramid.response import Response [as 别名]
# 或者: from pyramid.response.Response import headers['ETag'] [as 别名]
def getBadges(req):
	'''Retrieve a user's badge information'''

	key = db.get(req.matchdict['user'])
	res = Response(status=404)
	if key.exists:

		# generate proper response body
		body = None
		if 'type' not in req.matchdict:
			body = {'badges': key.data['badges']}

		elif req.matchdict['type'] in ['achieved','inprogress','desired']:
			badgeType = 'inProgress' if req.matchdict['type'] == 'inprogress' else req.matchdict['type']
			body = {badgeType: key.data['badges'][badgeType]}

		if body != None:
			hash = util.genETag(body)
			if_none_match = req.headers['If-None-Match'] if 'If-None-Match' in req.headers.keys() else None
			if if_none_match not in ['*',hash]:
				res.status = 200
				res.content_type = 'application/json'
				res.headers['ETag'] = hash
				res.json = body
			else:
				res.status = 304

	return res

# 需要导入模块: from pyramid.response import Response [as 别名]
# 或者: from pyramid.response.Response import headers['ETag'] [as 别名]
def createProfile(request):
	'''Create a new learner profile'''

	# get proposed key
	uid = None
	try:
		uid = request.json['identity']['userid']
	except ValueError:
		return Response(status=400, body='Body is not JSON')
	except KeyError:
		return Response(status=400, body='Body does not include required field "identity.userid"')

	if db.get(uid).exists:
		return Response(status=409)
	
	# create stub profile
	template = copy.deepcopy(profileSkeleton)
	data = util.mergeObjects(template, request.json, protectUid=False)
	key = db.new(uid, data=data)
	key.store()

	res = Response(status=201, json=data)
	res.headers['ETag'] = util.genETag(data)

	return res

# 需要导入模块: from pyramid.response import Response [as 别名]
# 或者: from pyramid.response.Response import headers['ETag'] [as 别名]
def saveProfile(request):
	'''If authorized, update learner profile with request body'''

	key = db.get(request.matchdict['user'])
	data = None

	# get the post data, if available
	try:
		data = request.json
	except ValueError:
		return Response(status=400, body='Body is not JSON')	

	if not key.exists:
		return Response(status=404)

	# compute original hash for update comparison
	oldHash = util.genETag(key.data)
	if_match = request.headers['If-Match'] if 'If-Match' in request.headers.keys() else '*'
	if_none_match = request.headers['If-None-Match'] if 'If-None-Match' in request.headers.keys() else None

	# if the preconditions pass
	if if_match in ['*', oldHash] and if_none_match not in ['*', oldHash]:

		# merge objects on PUT
		if request.method == 'PUT':
			try:
				key.data = util.mergeObjects(key.data, data, protectUid=True)
			except:
				return Response(status=500, body='Failed to merge objects')

		# replace object on POST
		else:
			template = copy.deepcopy(profileSkeleton)
			template['identity']['userid'] = request.matchdict['user']
			key.data = util.mergeObjects(template, data, protectUid=True)

		key.store()

		# indicate creation or update
		res = Response(json=key.data)
		res.headers['ETag'] = util.genETag(key.data)
		res.status = 200
		return res

	# if the precondition fails, return 412
	else:
		return Response(status=412)

# 需要导入模块: from pyramid.response import Response [as 别名]
# 或者: from pyramid.response.Response import headers['ETag'] [as 别名]
def addBadges(req):
	'''Modify a list of badges'''

	key = db.get(req.matchdict['user'])

	# only take the given lists
	if req.matchdict['type'] not in ['achieved','inprogress','desired']:
		return Response(status=404)

	badgeType = 'inProgress' if req.matchdict['type'] == 'inprogress' else req.matchdict['type']

	# retrieve data
	data = None
	try:
		data = req.json
		if not isinstance(data, list):
			raise IndexError
	except ValueError:
		return Response(status=400, body='Body is not JSON')
	except IndexError:
		return Response(status=400, body='Body must be an array')

	oldHash = util.genETag({badgeType: key.data['badges'][badgeType]})
	if_match = req.headers['If-Match'] if 'If-Match' in req.headers.keys() else '*'
	if_none_match = req.headers['If-None-Match'] if 'If-None-Match' in req.headers.keys() else None

	# if the preconditions pass
	if if_match in ['*', oldHash] and if_none_match not in ['*', oldHash]:
		if req.method == 'PUT':
			key.data['badges'][badgeType] = key.data['badges'][badgeType] + data
		else:
			key.data['badges'][badgeType] = data

		key.store()

		res = Response(status=200)
		res.json = {badgeType: key.data['badges'][badgeType]}
		res.headers['ETag'] = util.genETag(res.json)
		res.content_type = 'application/json'

	else:
		res.status = 412

	return res

# 需要导入模块: from pyramid.response import Response [as 别名]
# 或者: from pyramid.response.Response import headers['ETag'] [as 别名]
def getProfile(request):
	'''If authorized, respond with learner profile from db'''

	key = db.get(request.matchdict['user'])
	res = Response()

	if key.exists:

		hash = util.genETag(key.data)
		if_none_match = request.headers['If-None-Match'] if 'If-None-Match' in request.headers.keys() else None

		if if_none_match in ['*', hash]:
			res.status = 304
		else:
			res.status = 200
			res.headers['ETag'] = hash
			if request.method == 'GET':
				res.json = key.data
				res.content_type = 'application/json'

	else:
		res.status = 404

	return res