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from jsonschema import _utils
from jsonschema.exceptions import ValidationError
def ignore_ref_siblings(schema):
"""
Ignore siblings of ``$ref`` if it is present.
Otherwise, return all validators.
Suitable for use with `create`'s ``applicable_validators`` argument.
"""
ref = schema.get("$ref")
if ref is not None:
return [("$ref", ref)]
else:
return schema.items()
def dependencies_draft3(validator, dependencies, instance, schema):
if not validator.is_type(instance, "object"):
return
for property, dependency in dependencies.items():
if property not in instance:
continue
if validator.is_type(dependency, "object"):
yield from validator.descend(
instance, dependency, schema_path=property,
)
elif validator.is_type(dependency, "string"):
if dependency not in instance:
message = f"{dependency!r} is a dependency of {property!r}"
yield ValidationError(message)
else:
for each in dependency:
if each not in instance:
message = f"{each!r} is a dependency of {property!r}"
yield ValidationError(message)
def dependencies_draft4_draft6_draft7(
validator,
dependencies,
instance,
schema,
):
"""
Support for the ``dependencies`` validator from pre-draft 2019-09.
In later drafts, the validator was split into separate
``dependentRequired`` and ``dependentSchemas`` validators.
"""
if not validator.is_type(instance, "object"):
return
for property, dependency in dependencies.items():
if property not in instance:
continue
if validator.is_type(dependency, "array"):
for each in dependency:
if each not in instance:
message = f"{each!r} is a dependency of {property!r}"
yield ValidationError(message)
else:
yield from validator.descend(
instance, dependency, schema_path=property,
)
def disallow_draft3(validator, disallow, instance, schema):
for disallowed in _utils.ensure_list(disallow):
if validator.evolve(schema={"type": [disallowed]}).is_valid(instance):
message = f"{disallowed!r} is disallowed for {instance!r}"
yield ValidationError(message)
def extends_draft3(validator, extends, instance, schema):
if validator.is_type(extends, "object"):
yield from validator.descend(instance, extends)
return
for index, subschema in enumerate(extends):
yield from validator.descend(instance, subschema, schema_path=index)
def items_draft3_draft4(validator, items, instance, schema):
if not validator.is_type(instance, "array"):
return
if validator.is_type(items, "object"):
for index, item in enumerate(instance):
yield from validator.descend(item, items, path=index)
else:
for (index, item), subschema in zip(enumerate(instance), items):
yield from validator.descend(
item, subschema, path=index, schema_path=index,
)
def items_draft6_draft7_draft201909(validator, items, instance, schema):
if not validator.is_type(instance, "array"):
return
if validator.is_type(items, "array"):
for (index, item), subschema in zip(enumerate(instance), items):
yield from validator.descend(
item, subschema, path=index, schema_path=index,
)
else:
for index, item in enumerate(instance):
yield from validator.descend(item, items, path=index)
def minimum_draft3_draft4(validator, minimum, instance, schema):
if not validator.is_type(instance, "number"):
return
if schema.get("exclusiveMinimum", False):
failed = instance <= minimum
cmp = "less than or equal to"
else:
failed = instance < minimum
cmp = "less than"
if failed:
message = f"{instance!r} is {cmp} the minimum of {minimum!r}"
yield ValidationError(message)
def maximum_draft3_draft4(validator, maximum, instance, schema):
if not validator.is_type(instance, "number"):
return
if schema.get("exclusiveMaximum", False):
failed = instance >= maximum
cmp = "greater than or equal to"
else:
failed = instance > maximum
cmp = "greater than"
if failed:
message = f"{instance!r} is {cmp} the maximum of {maximum!r}"
yield ValidationError(message)
def properties_draft3(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,
)
elif subschema.get("required", False):
error = ValidationError(f"{property!r} is a required property")
error._set(
validator="required",
validator_value=subschema["required"],
instance=instance,
schema=schema,
)
error.path.appendleft(property)
error.schema_path.extend([property, "required"])
yield error
def type_draft3(validator, types, instance, schema):
types = _utils.ensure_list(types)
all_errors = []
for index, type in enumerate(types):
if validator.is_type(type, "object"):
errors = list(validator.descend(instance, type, schema_path=index))
if not errors:
return
all_errors.extend(errors)
else:
if validator.is_type(instance, type):
return
else:
reprs = []
for type in types:
try:
reprs.append(repr(type["name"]))
except Exception:
reprs.append(repr(type))
yield ValidationError(
f"{instance!r} is not of type {', '.join(reprs)}",
context=all_errors,
)
def contains_draft6_draft7(validator, contains, instance, schema):
if not validator.is_type(instance, "array"):
return
if not any(
validator.evolve(schema=contains).is_valid(element)
for element in instance
):
yield ValidationError(
f"None of {instance!r} are valid under the given schema",
)
def recursiveRef(validator, recursiveRef, instance, schema):
lookup_url, target = validator.resolver.resolution_scope, validator.schema
for each in reversed(validator.resolver._scopes_stack[1:]):
lookup_url, next_target = validator.resolver.resolve(each)
if next_target.get("$recursiveAnchor"):
target = next_target
else:
break
fragment = recursiveRef.lstrip("#")
subschema = validator.resolver.resolve_fragment(target, fragment)
# FIXME: This is gutted (and not calling .descend) because it can trigger
# recursion errors, so there's a bug here. Re-enable the tests to
# see it.
subschema
return []
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