def generate_parameters_validator(api_path, path_definition, parameters, context, **kwargs):
"""
Generates a validator function to validate.
- request.path against the path parameters.
- request.query against the query parameters.
- request.headers against the header parameters.
- TODO: request.body against the body parameters.
- TODO: request.formData against any form data.
"""
validators = {}
path_level_parameters = path_definition.get('parameters', [])
operation_level_parameters = parameters
all_parameters = merge_parameter_lists(
path_level_parameters,
operation_level_parameters,
)
# PATH
in_path_parameters = filter_parameters(all_parameters, in_=PATH)
validators['path'] = generate_path_parameters_validator(
api_path, in_path_parameters, context,
)
# QUERY
in_query_parameters = filter_parameters(all_parameters, in_=QUERY)
validators['query'] = generate_query_parameters_validator(in_query_parameters, context)
# HEADERS
in_header_parameters = filter_parameters(all_parameters, in_=HEADER)
validators['headers'] = generate_header_validator(in_header_parameters, context)
return functools.partial(validate_request_parameters, validators=validators)
def generate_path_validator(api_path, path_definition, parameters,
context, **kwargs):
"""
Generates a callable for validating the parameters in a response object.
"""
path_level_parameters = dereference_parameter_list(
path_definition.get('parameters', []),
context,
)
operation_level_parameters = dereference_parameter_list(
parameters,
context,
)
all_parameters = merge_parameter_lists(
path_level_parameters,
operation_level_parameters,
)
# PATH
in_path_parameters = filter_parameters(all_parameters, in_=PATH)
return chain_reduce_partial(
attrgetter('path'),
generate_path_parameters_validator(api_path, in_path_parameters, context),
)
def generate_path_validator(api_path, path_definition, parameters,
context, **kwargs):
"""
Generates a callable for validating the parameters in a response object.
"""
path_level_parameters = dereference_parameter_list(
path_definition.get('parameters', []),
context,
)
operation_level_parameters = dereference_parameter_list(
parameters,
context,
)
all_parameters = merge_parameter_lists(
path_level_parameters,
operation_level_parameters,
)
# PATH
in_path_parameters = filter_parameters(all_parameters, in_=PATH)
return chain_reduce_partial(
attrgetter('path'),
generate_path_parameters_validator(api_path, in_path_parameters, context),
)
def validate(self, attrs):
with ErrorCollection(inner=True) as errors:
for api_path, path_definition in attrs.items():
path_parameter_names = set(get_parameter_names_from_path(api_path))
if path_definition is None:
continue
api_path_level_parameters = dereference_parameter_list(
path_definition.get('parameters', []),
parameter_definitions=self.context.get('parameters', {}),
)
path_request_methods = set(REQUEST_METHODS).intersection(
path_definition.keys(),
)
if not path_request_methods:
for parameter in api_path_level_parameters:
if parameter['name'] not in path_parameter_names:
errors[api_path].append(
MESSAGES["path"]["missing_parameter"].format(
parameter['name'], api_path,
),
)
for method, operation_definition in path_definition.items():
if method not in REQUEST_METHODS:
continue
if operation_definition is None:
operation_definition = {}
operation_level_parameters = dereference_parameter_list(
operation_definition.get('parameters', []),
parameter_definitions=self.context.get('parameters', {}),
)
parameters_in_path = filter_parameters(
merge_parameter_lists(
api_path_level_parameters,
operation_level_parameters,
),
in_=PATH,
)
for parameter in parameters_in_path:
if parameter['name'] not in path_parameter_names:
key = "{method}:{api_path}".format(
method=method.upper(),
api_path=api_path,
)
errors[key].append(
MESSAGES["path"]["missing_parameter"].format(
parameter['name'], api_path,
),
)
return super(PathsSerializer, self).validate(attrs)
def test_filtering_parameters(lookup_kwargs, expected):
parameters = parameters_validator([
ID_IN_PATH,
USERNAME_IN_PATH,
PAGE_IN_QUERY,
PAGE_SIZE_IN_QUERY,
])
results = filter_parameters(parameters, **lookup_kwargs)
assert len(results) == 1
for key in lookup_kwargs:
assert results[0][key] == expected[key]
def test_find_parameter_errors_when_no_match_found():
parameters = parameters_validator([
ID_IN_PATH,
USERNAME_IN_PATH,
PAGE_IN_QUERY,
PAGE_SIZE_IN_QUERY,
])
#sanity check
assert not filter_parameters(parameters, name='not-in-parameters')
with pytest.raises(ValueError):
find_parameter(parameters, name='not-in-parameters')
def test_filtering_parameters(lookup_kwargs, expected):
parameters = parameters_validator([
ID_IN_PATH,
USERNAME_IN_PATH,
PAGE_IN_QUERY,
PAGE_SIZE_IN_QUERY,
])
results = filter_parameters(parameters, **lookup_kwargs)
assert len(results) == 1
for key in lookup_kwargs:
assert results[0][key] == expected[key]
def test_find_parameter_errors_when_no_match_found():
parameters = parameters_validator([
ID_IN_PATH,
USERNAME_IN_PATH,
PAGE_IN_QUERY,
PAGE_SIZE_IN_QUERY,
])
#sanity check
assert not filter_parameters(parameters, name='not-in-parameters')
with pytest.raises(ValueError):
find_parameter(parameters, name='not-in-parameters')
def test_find_parameter_errors_when_multiple_found():
parameters = parameters_validator([
ID_IN_PATH,
USERNAME_IN_PATH,
PAGE_IN_QUERY,
PAGE_SIZE_IN_QUERY,
])
#sanity check
sanity = filter_parameters(parameters, in_=PATH)
assert len(sanity) == 2
with pytest.raises(ValueError):
find_parameter(parameters, in_=PATH)
def test_find_parameter_errors_when_multiple_found():
parameters = parameters_validator([
ID_IN_PATH,
USERNAME_IN_PATH,
PAGE_IN_QUERY,
PAGE_SIZE_IN_QUERY,
])
#sanity check
sanity = filter_parameters(parameters, in_=PATH)
assert len(sanity) == 2
with pytest.raises(ValueError):
find_parameter(parameters, in_=PATH)
def test_find_parameter_errors_when_no_match_found():
serializer = ParameterSerializer(many=True, data=[
ID_IN_PATH,
USERNAME_IN_PATH,
PAGE_IN_QUERY,
PAGE_SIZE_IN_QUERY,
])
assert serializer.is_valid(), serializer.errors
parameters = serializer.object
#sanity check
assert not filter_parameters(parameters, name='not-in-parameters')
with pytest.raises(ValueError):
find_parameter(parameters, name='not-in-parameters')
def test_filtering_parameters(lookup_kwargs, expected):
serializer = ParameterSerializer(many=True, data=[
ID_IN_PATH,
USERNAME_IN_PATH,
PAGE_IN_QUERY,
PAGE_SIZE_IN_QUERY,
])
assert serializer.is_valid(), serializer.errors
parameters = serializer.object
results = filter_parameters(parameters, **lookup_kwargs)
assert len(results) == 1
for key in lookup_kwargs:
assert results[0][key] == expected[key]
def test_find_parameter_errors_when_multiple_found():
serializer = ParameterSerializer(many=True, data=[
ID_IN_PATH,
USERNAME_IN_PATH,
PAGE_IN_QUERY,
PAGE_SIZE_IN_QUERY,
])
assert serializer.is_valid(), serializer.errors
parameters = serializer.object
#sanity check
sanity = filter_parameters(parameters, in_=PATH)
assert len(sanity) == 2
with pytest.raises(ValueError):
find_parameter(parameters, in_=PATH)
def test_merge_parameters_uses_last_write_wins():
duplicate_a = {
'name': 'duplicate',
'in': PATH,
'description': 'duplicate_a',
'type': INTEGER,
'required': True
}
duplicate_b = {
'name': 'duplicate',
'in': PATH,
'description': 'duplicate_b',
'type': STRING,
'required': True
}
main_serializer = ParameterSerializer(many=True, data=[
ID_IN_PATH,
USERNAME_IN_PATH,
duplicate_a,
PAGE_IN_QUERY,
])
assert main_serializer.is_valid(), main_serializer.errors
main_parameters = main_serializer.object
sub_serializer = ParameterSerializer(many=True, data=[
duplicate_b,
PAGE_SIZE_IN_QUERY,
])
assert sub_serializer.is_valid(), sub_serializer.errors
sub_parameters = sub_serializer.object
merged_parameters = merge_parameter_lists(main_parameters, sub_parameters)
assert len(merged_parameters) == 5
assert find_parameter(merged_parameters, description='duplicate_b')
assert not filter_parameters(merged_parameters, description='duplicate_a')
assert find_parameter(merged_parameters, in_=PATH, name='id')
assert find_parameter(merged_parameters, in_=PATH, name='username')
assert find_parameter(merged_parameters, in_=QUERY, name='page')
assert find_parameter(merged_parameters, in_=QUERY, name='page_size')
def test_merge_parameters_uses_last_write_wins():
duplicate_a = {
'name': 'duplicate',
'in': PATH,
'description': 'duplicate_a',
'type': INTEGER,
'required': True
}
duplicate_b = {
'name': 'duplicate',
'in': PATH,
'description': 'duplicate_b',
'type': STRING,
'required': True
}
main_parameters = parameters_validator([
ID_IN_PATH,
USERNAME_IN_PATH,
duplicate_a,
PAGE_IN_QUERY,
])
sub_parameters = parameters_validator([
duplicate_b,
PAGE_SIZE_IN_QUERY,
])
merged_parameters = merge_parameter_lists(main_parameters, sub_parameters)
assert len(merged_parameters) == 5
assert find_parameter(merged_parameters, description='duplicate_b')
assert not filter_parameters(merged_parameters, description='duplicate_a')
assert find_parameter(merged_parameters, in_=PATH, name='id')
assert find_parameter(merged_parameters, in_=PATH, name='username')
assert find_parameter(merged_parameters, in_=QUERY, name='page')
assert find_parameter(merged_parameters, in_=QUERY, name='page_size')
def test_merge_parameters_uses_last_write_wins():
duplicate_a = {
'name': 'duplicate',
'in': PATH,
'description': 'duplicate_a',
'type': INTEGER,
'required': True
}
duplicate_b = {
'name': 'duplicate',
'in': PATH,
'description': 'duplicate_b',
'type': STRING,
'required': True
}
main_parameters = parameters_validator([
ID_IN_PATH,
USERNAME_IN_PATH,
duplicate_a,
PAGE_IN_QUERY,
])
sub_parameters = parameters_validator([
duplicate_b,
PAGE_SIZE_IN_QUERY,
])
merged_parameters = merge_parameter_lists(main_parameters, sub_parameters)
assert len(merged_parameters) == 5
assert find_parameter(merged_parameters, description='duplicate_b')
assert not filter_parameters(merged_parameters, description='duplicate_a')
assert find_parameter(merged_parameters, in_=PATH, name='id')
assert find_parameter(merged_parameters, in_=PATH, name='username')
assert find_parameter(merged_parameters, in_=QUERY, name='page')
assert find_parameter(merged_parameters, in_=QUERY, name='page_size')
def generate_parameters_validator(api_path, path_definition, parameters,
context, **kwargs):
"""
Generates a validator function to validate.
- request.path against the path parameters.
- request.query against the query parameters.
- request.headers against the header parameters.
- TODO: request.body against the body parameters.
- TODO: request.formData against any form data.
"""
# TODO: figure out how to merge this with the same code in response
# validation.
validators = ValidationDict()
path_level_parameters = dereference_parameter_list(
path_definition.get('parameters', []),
context,
)
operation_level_parameters = dereference_parameter_list(
parameters,
context,
)
all_parameters = merge_parameter_lists(
path_level_parameters,
operation_level_parameters,
)
# PATH
in_path_parameters = filter_parameters(all_parameters, in_=PATH)
validators.add_validator(
'path',
chain_reduce_partial(
operator.attrgetter('path'),
generate_path_parameters_validator(api_path, in_path_parameters,
context),
),
)
# QUERY
in_query_parameters = filter_parameters(all_parameters, in_=QUERY)
validators.add_validator(
'query',
chain_reduce_partial(
operator.attrgetter('query_data'),
functools.partial(
validate_query_parameters,
query_parameters=in_query_parameters,
context=context,
),
),
)
# HEADERS
in_header_parameters = filter_parameters(all_parameters, in_=HEADER)
validators.add_validator(
'headers',
chain_reduce_partial(
operator.attrgetter('headers'),
generate_header_validator(in_header_parameters, context),
),
)
# FORM_DATA
# in_form_data_parameters = filter_parameters(all_parameters, in_=FORM_DATA)
# validators.add_validator(
# 'form_data',
# chain_reduce_partial(
# operator.attrgetter('data'),
# generate_form_data_validator(in_form_data_parameters, context),
# )
# )
# REQUEST_BODY
in_request_body_parameters = filter_parameters(all_parameters, in_=BODY)
validators.add_validator(
'request_body',
chain_reduce_partial(
operator.attrgetter('data'),
generate_request_body_validator(in_request_body_parameters,
context),
))
return generate_object_validator(field_validators=validators)
def generate_parameters_validator(api_path, path_definition, parameters,
context, **kwargs):
"""
Generates a validator function to validate.
- request.path against the path parameters.
- request.query against the query parameters.
- request.headers against the header parameters.
- TODO: request.body against the body parameters.
- TODO: request.formData against any form data.
"""
# TODO: figure out how to merge this with the same code in response
# validation.
validators = ValidationDict()
path_level_parameters = dereference_parameter_list(
path_definition.get('parameters', []),
context,
)
operation_level_parameters = dereference_parameter_list(
parameters,
context,
)
all_parameters = merge_parameter_lists(
path_level_parameters,
operation_level_parameters,
)
# PATH
in_path_parameters = filter_parameters(all_parameters, in_=PATH)
validators.add_validator(
'path',
chain_reduce_partial(
attrgetter('path'),
generate_path_parameters_validator(api_path, in_path_parameters, context),
),
)
# QUERY
in_query_parameters = filter_parameters(all_parameters, in_=QUERY)
validators.add_validator(
'query',
chain_reduce_partial(
attrgetter('query_data'),
functools.partial(
validate_query_parameters,
query_parameters=in_query_parameters,
context=context,
),
),
)
# HEADERS
in_header_parameters = filter_parameters(all_parameters, in_=HEADER)
validators.add_validator(
'headers',
chain_reduce_partial(
attrgetter('headers'),
generate_header_validator(in_header_parameters, context),
),
)
# FORM_DATA
# in_form_data_parameters = filter_parameters(all_parameters, in_=FORM_DATA)
# validators.add_validator(
# 'form_data',
# chain_reduce_partial(
# attrgetter('data'),
# generate_form_data_validator(in_form_data_parameters, context),
# )
# )
# REQUEST_BODY
in_request_body_parameters = filter_parameters(all_parameters, in_=BODY)
validators.add_validator(
'request_body',
chain_reduce_partial(
attrgetter('data'),
generate_request_body_validator(in_request_body_parameters, context),
)
)
return generate_object_validator(field_validators=validators)
