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Diffstat (limited to 'jsonschema/_validators.py')
| -rw-r--r-- | jsonschema/_validators.py | 476 |
1 files changed, 0 insertions, 476 deletions
diff --git a/jsonschema/_validators.py b/jsonschema/_validators.py deleted file mode 100644 index 8542a87..0000000 --- a/jsonschema/_validators.py +++ /dev/null @@ -1,476 +0,0 @@ -from fractions import Fraction -from urllib.parse import urldefrag, urljoin -import re - -from jsonschema._utils import ( - ensure_list, - equal, - extras_msg, - find_additional_properties, - find_evaluated_item_indexes_by_schema, - find_evaluated_property_keys_by_schema, - unbool, - uniq, -) -from jsonschema.exceptions import FormatError, ValidationError - - -def patternProperties(validator, patternProperties, instance, schema): - if not validator.is_type(instance, "object"): - return - - for pattern, subschema in patternProperties.items(): - for k, v in instance.items(): - if re.search(pattern, k): - yield from validator.descend( - v, subschema, path=k, schema_path=pattern, - ) - - -def propertyNames(validator, propertyNames, instance, schema): - if not validator.is_type(instance, "object"): - return - - for property in instance: - yield from validator.descend(instance=property, schema=propertyNames) - - -def additionalProperties(validator, aP, instance, schema): - if not validator.is_type(instance, "object"): - return - - extras = set(find_additional_properties(instance, schema)) - - if validator.is_type(aP, "object"): - for extra in extras: - yield from validator.descend(instance[extra], aP, path=extra) - elif not aP and extras: - if "patternProperties" in schema: - if len(extras) == 1: - verb = "does" - else: - verb = "do" - - joined = ", ".join(repr(each) for each in sorted(extras)) - patterns = ", ".join( - repr(each) for each in sorted(schema["patternProperties"]) - ) - error = f"{joined} {verb} not match any of the regexes: {patterns}" - yield ValidationError(error) - else: - error = "Additional properties are not allowed (%s %s unexpected)" - yield ValidationError(error % extras_msg(extras)) - - -def items(validator, items, instance, schema): - if not validator.is_type(instance, "array"): - return - - prefix = len(schema.get("prefixItems", [])) - total = len(instance) - if items is False and total > prefix: - message = f"Expected at most {prefix} items, but found {total}" - yield ValidationError(message) - else: - for index in range(prefix, total): - yield from validator.descend( - instance=instance[index], - schema=items, - path=index, - ) - - -def additionalItems(validator, aI, instance, schema): - if ( - not validator.is_type(instance, "array") - or validator.is_type(schema.get("items", {}), "object") - ): - return - - len_items = len(schema.get("items", [])) - if validator.is_type(aI, "object"): - for index, item in enumerate(instance[len_items:], start=len_items): - yield from validator.descend(item, aI, path=index) - elif not aI and len(instance) > len(schema.get("items", [])): - error = "Additional items are not allowed (%s %s unexpected)" - yield ValidationError( - error % extras_msg(instance[len(schema.get("items", [])):]), - ) - - -def const(validator, const, instance, schema): - if not equal(instance, const): - yield ValidationError(f"{const!r} was expected") - - -def contains(validator, contains, instance, schema): - if not validator.is_type(instance, "array"): - return - - matches = 0 - min_contains = schema.get("minContains", 1) - max_contains = schema.get("maxContains", len(instance)) - - for each in instance: - if validator.evolve(schema=contains).is_valid(each): - matches += 1 - if matches > max_contains: - yield ValidationError( - "Too many items match the given schema " - f"(expected at most {max_contains})", - validator="maxContains", - validator_value=max_contains, - ) - return - - if matches < min_contains: - if not matches: - yield ValidationError( - f"{instance!r} does not contain items " - "matching the given schema", - ) - else: - yield ValidationError( - "Too few items match the given schema (expected at least " - f"{min_contains} but only {matches} matched)", - validator="minContains", - validator_value=min_contains, - ) - - -def exclusiveMinimum(validator, minimum, instance, schema): - if not validator.is_type(instance, "number"): - return - - if instance <= minimum: - yield ValidationError( - f"{instance!r} is less than or equal to " - f"the minimum of {minimum!r}", - ) - - -def exclusiveMaximum(validator, maximum, instance, schema): - if not validator.is_type(instance, "number"): - return - - if instance >= maximum: - yield ValidationError( - f"{instance!r} is greater than or equal " - f"to the maximum of {maximum!r}", - ) - - -def minimum(validator, minimum, instance, schema): - if not validator.is_type(instance, "number"): - return - - if instance < minimum: - message = f"{instance!r} is less than the minimum of {minimum!r}" - yield ValidationError(message) - - -def maximum(validator, maximum, instance, schema): - if not validator.is_type(instance, "number"): - return - - if instance > maximum: - message = f"{instance!r} is greater than the maximum of {maximum!r}" - yield ValidationError(message) - - -def multipleOf(validator, dB, instance, schema): - if not validator.is_type(instance, "number"): - return - - if isinstance(dB, float): - quotient = instance / dB - try: - failed = int(quotient) != quotient - except OverflowError: - # When `instance` is large and `dB` is less than one, - # quotient can overflow to infinity; and then casting to int - # raises an error. - # - # In this case we fall back to Fraction logic, which is - # exact and cannot overflow. The performance is also - # acceptable: we try the fast all-float option first, and - # we know that fraction(dB) can have at most a few hundred - # digits in each part. The worst-case slowdown is therefore - # for already-slow enormous integers or Decimals. - failed = (Fraction(instance) / Fraction(dB)).denominator != 1 - else: - failed = instance % dB - - if failed: - yield ValidationError(f"{instance!r} is not a multiple of {dB}") - - -def minItems(validator, mI, instance, schema): - if validator.is_type(instance, "array") and len(instance) < mI: - yield ValidationError(f"{instance!r} is too short") - - -def maxItems(validator, mI, instance, schema): - if validator.is_type(instance, "array") and len(instance) > mI: - yield ValidationError(f"{instance!r} is too long") - - -def uniqueItems(validator, uI, instance, schema): - if ( - uI - and validator.is_type(instance, "array") - and not uniq(instance) - ): - yield ValidationError(f"{instance!r} has non-unique elements") - - -def pattern(validator, patrn, instance, schema): - if ( - validator.is_type(instance, "string") - and not re.search(patrn, instance) - ): - yield ValidationError(f"{instance!r} does not match {patrn!r}") - - -def format(validator, format, instance, schema): - if validator.format_checker is not None: - try: - validator.format_checker.check(instance, format) - except FormatError as error: - yield ValidationError(error.message, cause=error.cause) - - -def minLength(validator, mL, instance, schema): - if validator.is_type(instance, "string") and len(instance) < mL: - yield ValidationError(f"{instance!r} is too short") - - -def maxLength(validator, mL, instance, schema): - if validator.is_type(instance, "string") and len(instance) > mL: - yield ValidationError(f"{instance!r} is too long") - - -def dependentRequired(validator, dependentRequired, instance, schema): - if not validator.is_type(instance, "object"): - return - - for property, dependency in dependentRequired.items(): - if property not in instance: - continue - - for each in dependency: - if each not in instance: - message = f"{each!r} is a dependency of {property!r}" - yield ValidationError(message) - - -def dependentSchemas(validator, dependentSchemas, instance, schema): - if not validator.is_type(instance, "object"): - return - - for property, dependency in dependentSchemas.items(): - if property not in instance: - continue - yield from validator.descend( - instance, dependency, schema_path=property, - ) - - -def enum(validator, enums, instance, schema): - if instance == 0 or instance == 1: - unbooled = unbool(instance) - if all(unbooled != unbool(each) for each in enums): - yield ValidationError(f"{instance!r} is not one of {enums!r}") - elif instance not in enums: - yield ValidationError(f"{instance!r} is not one of {enums!r}") - - -def ref(validator, ref, instance, schema): - resolve = getattr(validator.resolver, "resolve", None) - if resolve is None: - with validator.resolver.resolving(ref) as resolved: - yield from validator.descend(instance, resolved) - else: - scope, resolved = validator.resolver.resolve(ref) - validator.resolver.push_scope(scope) - - try: - yield from validator.descend(instance, resolved) - finally: - validator.resolver.pop_scope() - - -def dynamicRef(validator, dynamicRef, instance, schema): - _, fragment = urldefrag(dynamicRef) - - for url in validator.resolver._scopes_stack: - lookup_url = urljoin(url, dynamicRef) - with validator.resolver.resolving(lookup_url) as subschema: - if ("$dynamicAnchor" in subschema - and fragment == subschema["$dynamicAnchor"]): - yield from validator.descend(instance, subschema) - break - else: - with validator.resolver.resolving(dynamicRef) as subschema: - yield from validator.descend(instance, subschema) - - -def type(validator, types, instance, schema): - types = ensure_list(types) - - if not any(validator.is_type(instance, type) for type in types): - reprs = ", ".join(repr(type) for type in types) - yield ValidationError(f"{instance!r} is not of type {reprs}") - - -def properties(validator, properties, instance, schema): - if not validator.is_type(instance, "object"): - return - - for property, subschema in properties.items(): - if property in instance: - yield from validator.descend( - instance[property], - subschema, - path=property, - schema_path=property, - ) - - -def required(validator, required, instance, schema): - if not validator.is_type(instance, "object"): - return - for property in required: - if property not in instance: - yield ValidationError(f"{property!r} is a required property") - - -def minProperties(validator, mP, instance, schema): - if validator.is_type(instance, "object") and len(instance) < mP: - yield ValidationError(f"{instance!r} does not have enough properties") - - -def maxProperties(validator, mP, instance, schema): - if not validator.is_type(instance, "object"): - return - if validator.is_type(instance, "object") and len(instance) > mP: - yield ValidationError(f"{instance!r} has too many properties") - - -def allOf(validator, allOf, instance, schema): - for index, subschema in enumerate(allOf): - yield from validator.descend(instance, subschema, schema_path=index) - - -def anyOf(validator, anyOf, instance, schema): - all_errors = [] - for index, subschema in enumerate(anyOf): - errs = list(validator.descend(instance, subschema, schema_path=index)) - if not errs: - break - all_errors.extend(errs) - else: - yield ValidationError( - f"{instance!r} is not valid under any of the given schemas", - context=all_errors, - ) - - -def oneOf(validator, oneOf, instance, schema): - subschemas = enumerate(oneOf) - all_errors = [] - for index, subschema in subschemas: - errs = list(validator.descend(instance, subschema, schema_path=index)) - if not errs: - first_valid = subschema - break - all_errors.extend(errs) - else: - yield ValidationError( - f"{instance!r} is not valid under any of the given schemas", - context=all_errors, - ) - - more_valid = [ - each for _, each in subschemas - if validator.evolve(schema=each).is_valid(instance) - ] - if more_valid: - more_valid.append(first_valid) - reprs = ", ".join(repr(schema) for schema in more_valid) - yield ValidationError(f"{instance!r} is valid under each of {reprs}") - - -def not_(validator, not_schema, instance, schema): - if validator.evolve(schema=not_schema).is_valid(instance): - message = f"{instance!r} should not be valid under {not_schema!r}" - yield ValidationError(message) - - -def if_(validator, if_schema, instance, schema): - if validator.evolve(schema=if_schema).is_valid(instance): - if "then" in schema: - then = schema["then"] - yield from validator.descend(instance, then, schema_path="then") - elif "else" in schema: - else_ = schema["else"] - yield from validator.descend(instance, else_, schema_path="else") - - -def unevaluatedItems(validator, unevaluatedItems, instance, schema): - if not validator.is_type(instance, "array"): - return - evaluated_item_indexes = find_evaluated_item_indexes_by_schema( - validator, instance, schema, - ) - unevaluated_items = [ - item for index, item in enumerate(instance) - if index not in evaluated_item_indexes - ] - if unevaluated_items: - error = "Unevaluated items are not allowed (%s %s unexpected)" - yield ValidationError(error % extras_msg(unevaluated_items)) - - -def unevaluatedProperties(validator, unevaluatedProperties, instance, schema): - if not validator.is_type(instance, "object"): - return - evaluated_keys = find_evaluated_property_keys_by_schema( - validator, instance, schema, - ) - unevaluated_keys = [] - for property in instance: - if property not in evaluated_keys: - for _ in validator.descend( - instance[property], - unevaluatedProperties, - path=property, - schema_path=property, - ): - # FIXME: Include context for each unevaluated property - # indicating why it's invalid under the subschema. - unevaluated_keys.append(property) - - if unevaluated_keys: - if unevaluatedProperties is False: - error = "Unevaluated properties are not allowed (%s %s unexpected)" - yield ValidationError(error % extras_msg(unevaluated_keys)) - else: - error = ( - "Unevaluated properties are not valid under " - "the given schema (%s %s unevaluated and invalid)" - ) - yield ValidationError(error % extras_msg(unevaluated_keys)) - - -def prefixItems(validator, prefixItems, instance, schema): - if not validator.is_type(instance, "array"): - return - - for (index, item), subschema in zip(enumerate(instance), prefixItems): - yield from validator.descend( - instance=item, - schema=subschema, - schema_path=index, - path=index, - ) |