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import json
import io
import falcon
import falcon.testing as testing
def validate(req, resp, params):
raise falcon.HTTPBadRequest('Invalid thing', 'Your thing was not '
'formatted correctly.')
def validate_param(req, resp, params):
limit = req.get_param_as_int('limit')
if limit and int(limit) > 100:
raise falcon.HTTPBadRequest('Out of range', 'limit must be <= 100')
def validate_field(req, resp, params):
try:
params['id'] = int(params['id'])
except ValueError:
raise falcon.HTTPBadRequest('Invalid ID', 'ID was not valid.')
def parse_body(req, resp, params):
length = req.content_length or 0
if length != 0:
params['doc'] = json.load(io.TextIOWrapper(req.stream, 'utf-8'))
def bunnies(req, resp, params):
params['bunnies'] = 'fuzzy'
def frogs(req, resp, params):
if 'bunnies' in params:
params['bunnies'] = 'fluffy'
params['frogs'] = 'not fluffy'
class WrappedRespondersResource(object):
@falcon.before(validate_param)
@falcon.before(parse_body)
def on_get(self, req, resp, doc):
self.req = req
self.resp = resp
self.doc = doc
@falcon.before(validate)
def on_put(self, req, resp):
self.req = req
self.resp = resp
@falcon.before(bunnies)
class WrappedClassResource(object):
# Test non-callable should be skipped by decorator
on_patch = {}
@falcon.before(validate_param)
def on_get(self, req, resp, bunnies):
self.req = req
self.resp = resp
self.bunnies = bunnies
@falcon.before(validate_param)
def on_head(self, req, resp, bunnies):
self.req = req
self.resp = resp
self.bunnies = bunnies
class TestFieldResource(object):
@falcon.before(validate_field)
def on_get(self, req, resp, id):
self.id = id
class BunnyResource(object):
def on_get(self, req, resp, bunnies):
self.bunnies = bunnies
class ZooResource(object):
def on_get(self, req, resp, bunnies, frogs):
self.bunnies = bunnies
self.frogs = frogs
class TestHooks(testing.TestBase):
def before(self):
self.resource = WrappedRespondersResource()
self.api.add_route(self.test_route, self.resource)
self.field_resource = TestFieldResource()
self.api.add_route('/queue/{id}/messages', self.field_resource)
self.wrapped_resource = WrappedClassResource()
self.api.add_route('/wrapped', self.wrapped_resource)
def test_global_hook(self):
self.assertRaises(TypeError, falcon.API, None, 0)
self.assertRaises(TypeError, falcon.API, None, {})
self.api = falcon.API(before=bunnies)
zoo_resource = BunnyResource()
self.api.add_route(self.test_route, zoo_resource)
self.simulate_request(self.test_route)
self.assertEqual('fuzzy', zoo_resource.bunnies)
def test_multiple_global_hook(self):
self.api = falcon.API(before=[bunnies, frogs])
zoo_resource = ZooResource()
self.api.add_route(self.test_route, zoo_resource)
self.simulate_request(self.test_route)
self.assertEqual('fluffy', zoo_resource.bunnies)
self.assertEqual('not fluffy', zoo_resource.frogs)
def test_input_validator(self):
self.simulate_request(self.test_route, method='PUT')
self.assertEqual(falcon.HTTP_400, self.srmock.status)
def test_param_validator(self):
self.simulate_request(self.test_route, query_string='?limit=10',
body='{}')
self.assertEqual(falcon.HTTP_200, self.srmock.status)
self.simulate_request(self.test_route, query_string='?limit=101')
self.assertEqual(falcon.HTTP_400, self.srmock.status)
def test_field_validator(self):
self.simulate_request('/queue/10/messages')
self.assertEqual(falcon.HTTP_200, self.srmock.status)
self.assertEqual(self.field_resource.id, 10)
self.simulate_request('/queue/bogus/messages')
self.assertEqual(falcon.HTTP_400, self.srmock.status)
def test_parser(self):
self.simulate_request(self.test_route,
body=json.dumps({'animal': 'falcon'}))
self.assertEqual(self.resource.doc, {'animal': 'falcon'})
def test_wrapped_resource(self):
self.simulate_request('/wrapped', method='PATCH')
self.assertEqual(falcon.HTTP_405, self.srmock.status)
self.simulate_request('/wrapped', query_string='?limit=10')
self.assertEqual(falcon.HTTP_200, self.srmock.status)
self.assertEqual('fuzzy', self.wrapped_resource.bunnies)
self.simulate_request('/wrapped', method='HEAD')
self.assertEqual(falcon.HTTP_200, self.srmock.status)
self.assertEqual('fuzzy', self.wrapped_resource.bunnies)
self.simulate_request('/wrapped', query_string='?limit=101')
self.assertEqual(falcon.HTTP_400, self.srmock.status)
self.assertEqual('fuzzy', self.wrapped_resource.bunnies)
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