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""" |
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Module containing error views. |
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""" |
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import logging |
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import sys |
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from openapi_core.unmarshalling.schemas.exceptions import InvalidSchemaValue |
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from pyramid.httpexceptions import HTTPMethodNotAllowed |
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from pyramid.view import notfound_view_config |
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from pyramid.view import view_config |
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from pyramid_openapi3 import RequestValidationError |
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from pyramid_openapi3 import ResponseValidationError |
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from pyramid_openapi3 import openapi_validation_error |
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from skosprovider.exceptions import ProviderUnavailableException |
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from sqlalchemy.exc import IntegrityError |
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from atramhasis.errors import SkosRegistryNotFoundException |
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from atramhasis.errors import ValidationError |
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from atramhasis.protected_resources import ProtectedResourceException |
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log = logging.getLogger(__name__) |
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@notfound_view_config(renderer='json') |
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def failed_not_found(exc, request): |
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""" |
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View invoked when a resource could not be found. |
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""" |
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log.debug(exc.explanation) |
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request.response.status_int = 404 |
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return {'message': exc.explanation} |
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@view_config(context=SkosRegistryNotFoundException, renderer='json') |
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def failed_skos(exc, request): |
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""" |
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View invoked when Atramhasis can't find a SKOS registry. |
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""" |
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log.error(exc.value, exc_info=sys.exc_info()) |
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request.response.status_int = 500 |
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return {'message': exc.value} |
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@view_config(context=ValidationError, renderer='json') |
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def failed_validation(exc, request): |
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""" |
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View invoked when bad data was submitted to Atramhasis. |
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""" |
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log.debug(f"'message': {exc.value}, 'errors': {exc.errors}") |
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request.response.status_int = 400 |
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return {'message': exc.value, 'errors': exc.errors} |
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@view_config(context=ProtectedResourceException, renderer='json') |
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def protected(exc, request): |
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""" |
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when a protected operation is called on a resource that is still referenced |
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""" |
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log.warning(f"'message': {exc.value}, 'referenced_in': {exc.referenced_in}") |
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request.response.status_int = 409 |
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return {'message': exc.value, 'referenced_in': exc.referenced_in} |
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@view_config(context=ProviderUnavailableException, renderer='json') |
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def provider_unavailable(exc, request): |
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""" |
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View invoked when ProviderUnavailableException was raised. |
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""" |
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log.error(exc, exc_info=sys.exc_info()) |
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request.response.status_int = 503 |
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return {'message': exc.message} |
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@view_config(context=IntegrityError, renderer='json') |
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def data_integrity(exc, request): |
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""" |
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View invoked when IntegrityError was raised. |
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""" |
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log.warning(exc) |
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request.response.status_int = 409 |
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return { |
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'message': 'this operation violates the data integrity and could not be executed' |
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} |
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@view_config(context=Exception, renderer='json') |
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def failed(exc, request): # pragma no cover |
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""" |
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View invoked when bad data was submitted to Atramhasis. |
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""" |
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log.error(exc, exc_info=sys.exc_info()) |
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request.response.status_int = 500 |
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return {'message': 'unexpected server error'} |
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@view_config(context=HTTPMethodNotAllowed, renderer='json') |
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def failed_not_method_not_allowed(exc, request): |
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""" |
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View invoked when a method is not allowed. |
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""" |
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log.debug(exc.explanation) |
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request.response.status_int = 405 |
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return {'message': exc.explanation} |
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@view_config(context=RequestValidationError, renderer="json") |
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@view_config(context=ResponseValidationError, renderer="json") |
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def failed_openapi_validation(exc, request): |
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try: |
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errors = [ |
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_handle_validation_error(validation_error) |
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for error in exc.errors |
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if isinstance(error, InvalidSchemaValue) |
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for validation_error in error.schema_errors |
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] |
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# noinspection PyTypeChecker |
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errors.extend( |
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[ |
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str(error) |
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for error in exc.errors |
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if not isinstance(error, InvalidSchemaValue) |
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] |
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) |
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request.response.status_int = 400 |
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if isinstance(exc, RequestValidationError): |
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subject = "Request" |
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else: |
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subject = "Response" |
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return {"message": f"{subject} was not valid for schema.", "errors": errors} |
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except Exception: |
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log.exception("Issue with exception handling.") |
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return openapi_validation_error(exc, request) |
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def _handle_validation_error(error, path=""): |
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if error.validator in ("anyOf", "oneOf", "allOf"): |
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for schema_type in ("anyOf", "oneOf", "allOf"): |
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if schema_type not in error.schema: |
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continue |
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schemas = error.schema.get(schema_type) |
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break |
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else: |
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return None |
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response = [] |
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for i, schema in enumerate(schemas): |
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schema.pop("x-scope", None) |
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errors = [ |
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sub_error |
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for sub_error in error.context |
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if sub_error.relative_schema_path[0] == i |
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] |
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if error.path: |
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schema = {".".join(str(p) for p in error.path): schema} |
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response.append( |
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{ |
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"schema": schema, |
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"errors": [_handle_validation_error(error) for error in errors], |
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} |
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) |
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return {schema_type: response} |
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if path: |
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path += "." |
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path += ".".join(str(item) for item in error.path) |
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if not path: |
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path = "<root>" |
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return f"{path}: {error.message}" |
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OnroerendErfgoed /
atramhasis
