Files
2025-08-21 17:40:48 +01:00

213 lines
6.4 KiB
Python

import datetime
import ipaddress
from collections.abc import Sequence
from dataclasses import MISSING, dataclass, field
from enum import Enum
from typing import Any, Dict, List, Optional, Union
from typing_extensions import TYPE_CHECKING, Self, TypeAlias
from mashumaro.config import BaseConfig
from mashumaro.core.meta.helpers import iter_all_subclasses
from mashumaro.helper import pass_through
from mashumaro.jsonschema.dialects import DRAFT_2020_12, JSONSchemaDialect
if TYPE_CHECKING: # pragma: no cover
from mashumaro.jsonschema.plugins import BasePlugin
else:
BasePlugin = Any
try:
from mashumaro.mixins.orjson import (
DataClassORJSONMixin as DataClassJSONMixin,
)
except ImportError: # pragma: no cover
from mashumaro.mixins.json import DataClassJSONMixin # type: ignore
# https://github.com/python/mypy/issues/3186
Number: TypeAlias = Union[int, float]
Null = object()
class JSONSchemaInstanceType(Enum):
NULL = "null"
BOOLEAN = "boolean"
OBJECT = "object"
ARRAY = "array"
NUMBER = "number"
STRING = "string"
INTEGER = "integer"
class JSONSchemaInstanceFormat(Enum):
pass
class JSONSchemaStringFormat(JSONSchemaInstanceFormat):
DATETIME = "date-time"
DATE = "date"
TIME = "time"
DURATION = "duration"
EMAIL = "email"
IDN_EMAIL = "idn-email"
HOSTNAME = "hostname"
IDN_HOSTNAME = "idn-hostname"
IPV4ADDRESS = "ipv4"
IPV6ADDRESS = "ipv6"
URI = "uri"
URI_REFERENCE = "uri-reference"
IRI = "iri"
IRI_REFERENCE = "iri-reference"
UUID = "uuid"
URI_TEMPLATE = "uri-template"
JSON_POINTER = "json-pointer"
RELATIVE_JSON_POINTER = "relative-json-pointer"
REGEX = "regex"
class JSONSchemaInstanceFormatExtension(JSONSchemaInstanceFormat):
TIMEDELTA = "time-delta"
TIME_ZONE = "time-zone"
IPV4NETWORK = "ipv4network"
IPV6NETWORK = "ipv6network"
IPV4INTERFACE = "ipv4interface"
IPV6INTERFACE = "ipv6interface"
DECIMAL = "decimal"
FRACTION = "fraction"
BASE64 = "base64"
PATH = "path"
DATETIME_FORMATS = {
datetime.datetime: JSONSchemaStringFormat.DATETIME,
datetime.date: JSONSchemaStringFormat.DATE,
datetime.time: JSONSchemaStringFormat.TIME,
}
IPADDRESS_FORMATS = {
ipaddress.IPv4Address: JSONSchemaStringFormat.IPV4ADDRESS,
ipaddress.IPv6Address: JSONSchemaStringFormat.IPV6ADDRESS,
ipaddress.IPv4Network: JSONSchemaInstanceFormatExtension.IPV4NETWORK,
ipaddress.IPv6Network: JSONSchemaInstanceFormatExtension.IPV6NETWORK,
ipaddress.IPv4Interface: JSONSchemaInstanceFormatExtension.IPV4INTERFACE,
ipaddress.IPv6Interface: JSONSchemaInstanceFormatExtension.IPV6INTERFACE,
}
def _deserialize_json_schema_instance_format(
value: Any,
) -> JSONSchemaInstanceFormat:
for cls in iter_all_subclasses(JSONSchemaInstanceFormat):
try:
return cls(value)
except (ValueError, TypeError):
pass
raise ValueError(value)
@dataclass(unsafe_hash=True)
class JSONSchema(DataClassJSONMixin):
# Common keywords
schema: Optional[str] = None
type: Optional[JSONSchemaInstanceType] = None
enum: Optional[list[Any]] = None
const: Optional[Any] = field(default_factory=lambda: MISSING)
format: Optional[JSONSchemaInstanceFormat] = None
title: Optional[str] = None
description: Optional[str] = None
anyOf: Optional[List["JSONSchema"]] = None
reference: Optional[str] = None
definitions: Optional[Dict[str, "JSONSchema"]] = None
default: Optional[Any] = field(default_factory=lambda: MISSING)
deprecated: Optional[bool] = None
examples: Optional[list[Any]] = None
# Keywords for Objects
properties: Optional[Dict[str, "JSONSchema"]] = None
patternProperties: Optional[Dict[str, "JSONSchema"]] = None
additionalProperties: Union["JSONSchema", bool, None] = None
propertyNames: Optional["JSONSchema"] = None
# Keywords for Arrays
prefixItems: Optional[List["JSONSchema"]] = None
items: Optional["JSONSchema"] = None
contains: Optional["JSONSchema"] = None
# Validation keywords for numeric instances
multipleOf: Optional[Number] = None
maximum: Optional[Number] = None
exclusiveMaximum: Optional[Number] = None
minimum: Optional[Number] = None
exclusiveMinimum: Optional[Number] = None
# Validation keywords for Strings
maxLength: Optional[int] = None
minLength: Optional[int] = None
pattern: Optional[str] = None
# Validation keywords for Arrays
maxItems: Optional[int] = None
minItems: Optional[int] = None
uniqueItems: Optional[bool] = None
maxContains: Optional[int] = None
minContains: Optional[int] = None
# Validation keywords for Objects
maxProperties: Optional[int] = None
minProperties: Optional[int] = None
required: Optional[list[str]] = None
dependentRequired: Optional[dict[str, set[str]]] = None
class Config(BaseConfig):
omit_none = True
serialize_by_alias = True
aliases = {
"schema": "$schema",
"reference": "$ref",
"definitions": "$defs",
}
serialization_strategy = {
int: pass_through,
float: pass_through,
Null: pass_through,
JSONSchemaInstanceFormat: {
"deserialize": _deserialize_json_schema_instance_format,
},
}
def __pre_serialize__(self) -> Self:
if self.const is None:
self.const = Null
if self.default is None:
self.default = Null
return self
def __post_serialize__(self, d: dict[Any, Any]) -> dict[Any, Any]:
const = d.get("const")
if const is MISSING:
d.pop("const")
elif const is Null:
d["const"] = None
default = d.get("default")
if default is MISSING:
d.pop("default")
elif default is Null:
d["default"] = None
return d
@dataclass
class JSONObjectSchema(JSONSchema):
type: Optional[JSONSchemaInstanceType] = JSONSchemaInstanceType.OBJECT
@dataclass
class JSONArraySchema(JSONSchema):
type: Optional[JSONSchemaInstanceType] = JSONSchemaInstanceType.ARRAY
@dataclass
class Context:
dialect: JSONSchemaDialect = DRAFT_2020_12
definitions: dict[str, JSONSchema] = field(default_factory=dict)
all_refs: Optional[bool] = None
ref_prefix: Optional[str] = None
plugins: Sequence[BasePlugin] = ()