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a/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/__init__.py b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/__init__.py new file mode 100644 index 0000000..8b9183e --- /dev/null +++ b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/__init__.py @@ -0,0 +1,7 @@ +from .plugins import openapi_schema_plugins +from .schema import SchemaCreator + +__all__ = ( + "SchemaCreator", + "openapi_schema_plugins", +) diff --git a/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/__pycache__/__init__.cpython-311.pyc b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/__pycache__/__init__.cpython-311.pyc new file mode 100644 index 0000000..60cdb7e Binary files /dev/null and b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/__pycache__/__init__.cpython-311.pyc differ diff --git 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b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/constrained_fields.py @@ -0,0 +1,91 @@ +from __future__ import annotations + +from datetime import date, datetime, timezone +from re import Pattern +from typing import TYPE_CHECKING + +from litestar.openapi.spec.enums import OpenAPIFormat, OpenAPIType +from litestar.openapi.spec.schema import Schema + +if TYPE_CHECKING: + from decimal import Decimal + + from litestar.params import KwargDefinition + +__all__ = ( + "create_date_constrained_field_schema", + "create_numerical_constrained_field_schema", + "create_string_constrained_field_schema", +) + + +def create_numerical_constrained_field_schema( + field_type: type[int] | type[float] | type[Decimal], + kwarg_definition: KwargDefinition, +) -> Schema: + """Create Schema from Constrained Int/Float/Decimal field.""" + schema = Schema(type=OpenAPIType.INTEGER if issubclass(field_type, int) else OpenAPIType.NUMBER) + if kwarg_definition.le is not None: + schema.maximum = float(kwarg_definition.le) + if kwarg_definition.lt is not None: + schema.exclusive_maximum = float(kwarg_definition.lt) + if kwarg_definition.ge is not None: + schema.minimum = float(kwarg_definition.ge) + if kwarg_definition.gt is not None: + schema.exclusive_minimum = float(kwarg_definition.gt) + if kwarg_definition.multiple_of is not None: + schema.multiple_of = float(kwarg_definition.multiple_of) + return schema + + +def create_date_constrained_field_schema( + field_type: type[date] | type[datetime], + kwarg_definition: KwargDefinition, +) -> Schema: + """Create Schema from Constrained Date Field.""" + schema = Schema( + type=OpenAPIType.STRING, format=OpenAPIFormat.DATE if issubclass(field_type, date) else OpenAPIFormat.DATE_TIME + ) + for kwarg_definition_attr, schema_attr in [ + ("le", "maximum"), + ("lt", "exclusive_maximum"), + ("ge", "minimum"), + ("gt", "exclusive_minimum"), + ]: + if attr := getattr(kwarg_definition, kwarg_definition_attr): + setattr( + schema, + schema_attr, + datetime.combine( + datetime.fromtimestamp(attr, tz=timezone.utc) if isinstance(attr, (float, int)) else attr, + datetime.min.time(), + tzinfo=timezone.utc, + ).timestamp(), + ) + + return schema + + +def create_string_constrained_field_schema( + field_type: type[str] | type[bytes], + kwarg_definition: KwargDefinition, +) -> Schema: + """Create Schema from Constrained Str/Bytes field.""" + schema = Schema(type=OpenAPIType.STRING) + if issubclass(field_type, bytes): + schema.content_encoding = "utf-8" + if kwarg_definition.min_length: + schema.min_length = kwarg_definition.min_length + if kwarg_definition.max_length: + schema.max_length = kwarg_definition.max_length + if kwarg_definition.pattern: + schema.pattern = ( + kwarg_definition.pattern.pattern # type: ignore[attr-defined] + if isinstance(kwarg_definition.pattern, Pattern) # type: ignore[unreachable] + else kwarg_definition.pattern + ) + if kwarg_definition.lower_case: + schema.description = "must be in lower case" + if kwarg_definition.upper_case: + schema.description = "must be in upper case" + return schema diff --git a/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/examples.py b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/examples.py new file mode 100644 index 0000000..49edf72 --- /dev/null +++ b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/examples.py @@ -0,0 +1,84 @@ +from __future__ import annotations + +import typing +from dataclasses import replace +from decimal import Decimal +from enum import Enum +from typing import TYPE_CHECKING, Any + +import msgspec +from polyfactory.exceptions import ParameterException +from polyfactory.factories import DataclassFactory +from polyfactory.field_meta import FieldMeta, Null +from polyfactory.utils.helpers import unwrap_annotation +from polyfactory.utils.predicates import is_union +from typing_extensions import get_args + +from litestar.contrib.pydantic.utils import is_pydantic_model_instance +from litestar.openapi.spec import Example +from litestar.types import Empty + +if TYPE_CHECKING: + from litestar.typing import FieldDefinition + + +class ExampleFactory(DataclassFactory[Example]): + __model__ = Example + __random_seed__ = 10 + + +def _normalize_example_value(value: Any) -> Any: + """Normalize the example value to make it look a bit prettier.""" + # if UnsetType is part of the union, then it might get chosen as the value + # but that will not be properly serialized by msgspec unless it is for a field + # in a msgspec Struct + if is_union(value): + args = list(get_args(value)) + try: + args.remove(msgspec.UnsetType) + value = typing.Union[tuple(args)] # pyright: ignore + except ValueError: + # UnsetType not part of the Union + pass + + value = unwrap_annotation(annotation=value, random=ExampleFactory.__random__) + if isinstance(value, (Decimal, float)): + value = round(float(value), 2) + if isinstance(value, Enum): + value = value.value + if is_pydantic_model_instance(value): + from litestar.contrib.pydantic import _model_dump + + value = _model_dump(value) + if isinstance(value, (list, set)): + value = [_normalize_example_value(v) for v in value] + if isinstance(value, dict): + for k, v in value.items(): + value[k] = _normalize_example_value(v) + return value + + +def _create_field_meta(field: FieldDefinition) -> FieldMeta: + return FieldMeta.from_type( + annotation=field.annotation, + default=field.default if field.default is not Empty else Null, + name=field.name, + random=ExampleFactory.__random__, + ) + + +def create_examples_for_field(field: FieldDefinition) -> list[Example]: + """Create an OpenAPI Example instance. + + Args: + field: A signature field. + + Returns: + A list including a single example. + """ + try: + field_meta = _create_field_meta(replace(field, annotation=_normalize_example_value(field.annotation))) + value = ExampleFactory.get_field_value(field_meta) + return [Example(description=f"Example {field.name} value", value=value)] + except ParameterException: + return [] diff --git a/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/__init__.py b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/__init__.py new file mode 100644 index 0000000..1b12b1e --- /dev/null +++ b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/__init__.py @@ -0,0 +1,16 @@ +from .dataclass import DataclassSchemaPlugin +from .pagination import PaginationSchemaPlugin +from .struct import StructSchemaPlugin +from .typed_dict import TypedDictSchemaPlugin + +__all__ = ("openapi_schema_plugins",) + +# NOTE: The Pagination type plugin has to come before the Dataclass plugin since the Pagination +# classes are dataclasses, but we want to handle them differently from how dataclasses are normally +# handled. +openapi_schema_plugins = [ + PaginationSchemaPlugin(), + StructSchemaPlugin(), + DataclassSchemaPlugin(), + 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b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/__pycache__/typed_dict.cpython-311.pyc new file mode 100644 index 0000000..3d534ba Binary files /dev/null and b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/__pycache__/typed_dict.cpython-311.pyc differ diff --git a/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/dataclass.py b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/dataclass.py new file mode 100644 index 0000000..fb5da35 --- /dev/null +++ b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/dataclass.py @@ -0,0 +1,36 @@ +from __future__ import annotations + +from dataclasses import MISSING, fields +from typing import TYPE_CHECKING + +from litestar.plugins import OpenAPISchemaPlugin +from litestar.typing import FieldDefinition +from litestar.utils.predicates import is_optional_union + +if TYPE_CHECKING: + from litestar._openapi.schema_generation import SchemaCreator + from litestar.openapi.spec import Schema + + +class DataclassSchemaPlugin(OpenAPISchemaPlugin): + def is_plugin_supported_field(self, field_definition: FieldDefinition) -> bool: + return field_definition.is_dataclass_type + + def to_openapi_schema(self, field_definition: FieldDefinition, schema_creator: SchemaCreator) -> Schema: + type_hints = field_definition.get_type_hints(include_extras=True, resolve_generics=True) + dataclass_fields = fields(field_definition.type_) + return schema_creator.create_component_schema( + field_definition, + required=sorted( + field.name + for field in dataclass_fields + if ( + field.default is MISSING + and field.default_factory is MISSING + and not is_optional_union(type_hints[field.name]) + ) + ), + property_fields={ + field.name: FieldDefinition.from_kwarg(type_hints[field.name], field.name) for field in dataclass_fields + }, + ) diff --git a/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/pagination.py b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/pagination.py new file mode 100644 index 0000000..9b4f6c6 --- /dev/null +++ b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/pagination.py @@ -0,0 +1,60 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING + +from litestar.openapi.spec import OpenAPIType, Schema +from litestar.pagination import ClassicPagination, CursorPagination, OffsetPagination +from litestar.plugins import OpenAPISchemaPlugin + +if TYPE_CHECKING: + from litestar._openapi.schema_generation import SchemaCreator + from litestar.typing import FieldDefinition + + +class PaginationSchemaPlugin(OpenAPISchemaPlugin): + def is_plugin_supported_field(self, field_definition: FieldDefinition) -> bool: + return field_definition.origin in (ClassicPagination, CursorPagination, OffsetPagination) + + def to_openapi_schema(self, field_definition: FieldDefinition, schema_creator: SchemaCreator) -> Schema: + if field_definition.origin is ClassicPagination: + return Schema( + type=OpenAPIType.OBJECT, + properties={ + "items": Schema( + type=OpenAPIType.ARRAY, + items=schema_creator.for_field_definition(field_definition.inner_types[0]), + ), + "page_size": Schema(type=OpenAPIType.INTEGER, description="Number of items per page."), + "current_page": Schema(type=OpenAPIType.INTEGER, description="Current page number."), + "total_pages": Schema(type=OpenAPIType.INTEGER, description="Total number of pages."), + }, + ) + + if field_definition.origin is OffsetPagination: + return Schema( + type=OpenAPIType.OBJECT, + properties={ + "items": Schema( + type=OpenAPIType.ARRAY, + items=schema_creator.for_field_definition(field_definition.inner_types[0]), + ), + "limit": Schema(type=OpenAPIType.INTEGER, description="Maximal number of items to send."), + "offset": Schema(type=OpenAPIType.INTEGER, description="Offset from the beginning of the query."), + "total": Schema(type=OpenAPIType.INTEGER, description="Total number of items."), + }, + ) + + cursor_schema = schema_creator.not_generating_examples.for_field_definition(field_definition.inner_types[0]) + cursor_schema.description = "Unique ID, designating the last identifier in the given data set. This value can be used to request the 'next' batch of records." + + return Schema( + type=OpenAPIType.OBJECT, + properties={ + "items": Schema( + type=OpenAPIType.ARRAY, + items=schema_creator.for_field_definition(field_definition=field_definition.inner_types[1]), + ), + "cursor": cursor_schema, + "results_per_page": Schema(type=OpenAPIType.INTEGER, description="Maximal number of items to send."), + }, + ) diff --git a/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/struct.py b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/struct.py new file mode 100644 index 0000000..aabfdb3 --- /dev/null +++ b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/struct.py @@ -0,0 +1,44 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING + +from msgspec import Struct +from msgspec.structs import fields + +from litestar.plugins import OpenAPISchemaPlugin +from litestar.types.empty import Empty +from litestar.typing import FieldDefinition +from litestar.utils.predicates import is_optional_union + +if TYPE_CHECKING: + from msgspec.structs import FieldInfo + + from litestar._openapi.schema_generation import SchemaCreator + from litestar.openapi.spec import Schema + + +class StructSchemaPlugin(OpenAPISchemaPlugin): + def is_plugin_supported_field(self, field_definition: FieldDefinition) -> bool: + return not field_definition.is_union and field_definition.is_subclass_of(Struct) + + def to_openapi_schema(self, field_definition: FieldDefinition, schema_creator: SchemaCreator) -> Schema: + def is_field_required(field: FieldInfo) -> bool: + return field.required or field.default_factory is Empty + + type_hints = field_definition.get_type_hints(include_extras=True, resolve_generics=True) + struct_fields = fields(field_definition.type_) + + return schema_creator.create_component_schema( + field_definition, + required=sorted( + [ + field.encode_name + for field in struct_fields + if is_field_required(field=field) and not is_optional_union(type_hints[field.name]) + ] + ), + property_fields={ + field.encode_name: FieldDefinition.from_kwarg(type_hints[field.name], field.encode_name) + for field in struct_fields + }, + ) diff --git a/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/typed_dict.py b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/typed_dict.py new file mode 100644 index 0000000..ef34e2b --- /dev/null +++ b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/plugins/typed_dict.py @@ -0,0 +1,24 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING + +from litestar.plugins import OpenAPISchemaPlugin +from litestar.typing import FieldDefinition + +if TYPE_CHECKING: + from litestar._openapi.schema_generation import SchemaCreator + from litestar.openapi.spec import Schema + + +class TypedDictSchemaPlugin(OpenAPISchemaPlugin): + def is_plugin_supported_field(self, field_definition: FieldDefinition) -> bool: + return field_definition.is_typeddict_type + + def to_openapi_schema(self, field_definition: FieldDefinition, schema_creator: SchemaCreator) -> Schema: + type_hints = field_definition.get_type_hints(include_extras=True, resolve_generics=True) + + return schema_creator.create_component_schema( + field_definition, + required=sorted(getattr(field_definition.type_, "__required_keys__", [])), + property_fields={k: FieldDefinition.from_kwarg(v, k) for k, v in type_hints.items()}, + ) diff --git a/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/schema.py b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/schema.py new file mode 100644 index 0000000..0b7d6c6 --- /dev/null +++ b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/schema.py @@ -0,0 +1,616 @@ +from __future__ import annotations + +from collections import deque +from copy import copy +from datetime import date, datetime, time, timedelta +from decimal import Decimal +from enum import Enum, EnumMeta +from ipaddress import IPv4Address, IPv4Interface, IPv4Network, IPv6Address, IPv6Interface, IPv6Network +from pathlib import Path +from typing import ( + TYPE_CHECKING, + Any, + DefaultDict, + Deque, + Dict, + FrozenSet, + Hashable, + Iterable, + List, + Literal, + Mapping, + MutableMapping, + MutableSequence, + OrderedDict, + Pattern, + Sequence, + Set, + Tuple, + Union, + cast, +) +from uuid import UUID + +from typing_extensions import Self, get_args + +from litestar._openapi.datastructures import SchemaRegistry +from litestar._openapi.schema_generation.constrained_fields import ( + create_date_constrained_field_schema, + create_numerical_constrained_field_schema, + create_string_constrained_field_schema, +) +from litestar._openapi.schema_generation.utils import ( + _get_normalized_schema_key, + _should_create_enum_schema, + _should_create_literal_schema, + _type_or_first_not_none_inner_type, + get_json_schema_formatted_examples, +) +from litestar.datastructures import UploadFile +from litestar.exceptions import ImproperlyConfiguredException +from litestar.openapi.spec.enums import OpenAPIFormat, OpenAPIType +from litestar.openapi.spec.schema import Schema, SchemaDataContainer +from litestar.params import BodyKwarg, ParameterKwarg +from litestar.plugins import OpenAPISchemaPlugin +from litestar.types import Empty +from litestar.types.builtin_types import NoneType +from litestar.typing import FieldDefinition +from litestar.utils.helpers import get_name +from litestar.utils.predicates import ( + is_class_and_subclass, + is_undefined_sentinel, +) +from litestar.utils.typing import ( + get_origin_or_inner_type, + make_non_optional_union, +) + +if TYPE_CHECKING: + from litestar._openapi.datastructures import OpenAPIContext + from litestar.openapi.spec import Example, Reference + from litestar.plugins import OpenAPISchemaPluginProtocol + +KWARG_DEFINITION_ATTRIBUTE_TO_OPENAPI_PROPERTY_MAP: dict[str, str] = { + "content_encoding": "content_encoding", + "default": "default", + "description": "description", + "enum": "enum", + "examples": "examples", + "external_docs": "external_docs", + "format": "format", + "ge": "minimum", + "gt": "exclusive_minimum", + "le": "maximum", + "lt": "exclusive_maximum", + "max_items": "max_items", + "max_length": "max_length", + "min_items": "min_items", + "min_length": "min_length", + "multiple_of": "multiple_of", + "pattern": "pattern", + "title": "title", + "read_only": "read_only", +} + +TYPE_MAP: dict[type[Any] | None | Any, Schema] = { + Decimal: Schema(type=OpenAPIType.NUMBER), + DefaultDict: Schema(type=OpenAPIType.OBJECT), + Deque: Schema(type=OpenAPIType.ARRAY), + Dict: Schema(type=OpenAPIType.OBJECT), + FrozenSet: Schema(type=OpenAPIType.ARRAY), + IPv4Address: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.IPV4), + IPv4Interface: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.IPV4), + IPv4Network: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.IPV4), + IPv6Address: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.IPV6), + IPv6Interface: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.IPV6), + IPv6Network: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.IPV6), + Iterable: Schema(type=OpenAPIType.ARRAY), + List: Schema(type=OpenAPIType.ARRAY), + Mapping: Schema(type=OpenAPIType.OBJECT), + MutableMapping: Schema(type=OpenAPIType.OBJECT), + MutableSequence: Schema(type=OpenAPIType.ARRAY), + None: Schema(type=OpenAPIType.NULL), + NoneType: Schema(type=OpenAPIType.NULL), + OrderedDict: Schema(type=OpenAPIType.OBJECT), + Path: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.URI), + Pattern: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.REGEX), + Sequence: Schema(type=OpenAPIType.ARRAY), + Set: Schema(type=OpenAPIType.ARRAY), + Tuple: Schema(type=OpenAPIType.ARRAY), + UUID: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.UUID), + bool: Schema(type=OpenAPIType.BOOLEAN), + bytearray: Schema(type=OpenAPIType.STRING), + bytes: Schema(type=OpenAPIType.STRING), + date: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.DATE), + datetime: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.DATE_TIME), + deque: Schema(type=OpenAPIType.ARRAY), + dict: Schema(type=OpenAPIType.OBJECT), + float: Schema(type=OpenAPIType.NUMBER), + frozenset: Schema(type=OpenAPIType.ARRAY), + int: Schema(type=OpenAPIType.INTEGER), + list: Schema(type=OpenAPIType.ARRAY), + set: Schema(type=OpenAPIType.ARRAY), + str: Schema(type=OpenAPIType.STRING), + time: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.DURATION), + timedelta: Schema(type=OpenAPIType.STRING, format=OpenAPIFormat.DURATION), + tuple: Schema(type=OpenAPIType.ARRAY), +} + + +def _types_in_list(lst: list[Any]) -> list[OpenAPIType] | OpenAPIType: + """Extract unique OpenAPITypes present in the values of a list. + + Args: + lst: A list of values + + Returns: + OpenAPIType in the given list. If more then one exists, return + a list of OpenAPITypes. + """ + schema_types: list[OpenAPIType] = [] + for item in lst: + schema_type = TYPE_MAP[type(item)].type + if isinstance(schema_type, OpenAPIType): + schema_types.append(schema_type) + else: + raise RuntimeError("Unexpected type for schema item") # pragma: no cover + schema_types = list(set(schema_types)) + return schema_types[0] if len(schema_types) == 1 else schema_types + + +def _get_type_schema_name(field_definition: FieldDefinition) -> str: + """Extract the schema name from a data container. + + Args: + field_definition: A field definition instance. + + Returns: + A string + """ + + if name := getattr(field_definition.annotation, "__schema_name__", None): + return cast("str", name) + + name = get_name(field_definition.annotation) + if field_definition.inner_types: + inner_parts = ", ".join(_get_type_schema_name(t) for t in field_definition.inner_types) + return f"{name}[{inner_parts}]" + + return name + + +def create_enum_schema(annotation: EnumMeta, include_null: bool = False) -> Schema: + """Create a schema instance for an enum. + + Args: + annotation: An enum. + include_null: Whether to include null as a possible value. + + Returns: + A schema instance. + """ + enum_values: list[str | int | None] = [v.value for v in annotation] # type: ignore[var-annotated] + if include_null and None not in enum_values: + enum_values.append(None) + return Schema(type=_types_in_list(enum_values), enum=enum_values) + + +def _iter_flat_literal_args(annotation: Any) -> Iterable[Any]: + """Iterate over the flattened arguments of a Literal. + + Args: + annotation: An Literal annotation. + + Yields: + The flattened arguments of the Literal. + """ + for arg in get_args(annotation): + if get_origin_or_inner_type(arg) is Literal: + yield from _iter_flat_literal_args(arg) + else: + yield arg.value if isinstance(arg, Enum) else arg + + +def create_literal_schema(annotation: Any, include_null: bool = False) -> Schema: + """Create a schema instance for a Literal. + + Args: + annotation: An Literal annotation. + include_null: Whether to include null as a possible value. + + Returns: + A schema instance. + """ + args = list(_iter_flat_literal_args(annotation)) + if include_null and None not in args: + args.append(None) + schema = Schema(type=_types_in_list(args)) + if len(args) > 1: + schema.enum = args + else: + schema.const = args[0] + return schema + + +def create_schema_for_annotation(annotation: Any) -> Schema: + """Get a schema from the type mapping - if possible. + + Args: + annotation: A type annotation. + + Returns: + A schema instance or None. + """ + + return copy(TYPE_MAP[annotation]) if annotation in TYPE_MAP else Schema() + + +class SchemaCreator: + __slots__ = ("generate_examples", "plugins", "prefer_alias", "schema_registry") + + def __init__( + self, + generate_examples: bool = False, + plugins: Iterable[OpenAPISchemaPluginProtocol] | None = None, + prefer_alias: bool = True, + schema_registry: SchemaRegistry | None = None, + ) -> None: + """Instantiate a SchemaCreator. + + Args: + generate_examples: Whether to generate examples if none are given. + plugins: A list of plugins. + prefer_alias: Whether to prefer the alias name for the schema. + schema_registry: A SchemaRegistry instance. + """ + self.generate_examples = generate_examples + self.plugins = plugins if plugins is not None else [] + self.prefer_alias = prefer_alias + self.schema_registry = schema_registry or SchemaRegistry() + + @classmethod + def from_openapi_context(cls, context: OpenAPIContext, prefer_alias: bool = True, **kwargs: Any) -> Self: + kwargs.setdefault("generate_examples", context.openapi_config.create_examples) + kwargs.setdefault("plugins", context.plugins) + kwargs.setdefault("schema_registry", context.schema_registry) + return cls(**kwargs, prefer_alias=prefer_alias) + + @property + def not_generating_examples(self) -> SchemaCreator: + """Return a SchemaCreator with generate_examples set to False.""" + if not self.generate_examples: + return self + return type(self)(generate_examples=False, plugins=self.plugins, prefer_alias=False) + + @staticmethod + def plugin_supports_field(plugin: OpenAPISchemaPluginProtocol, field: FieldDefinition) -> bool: + if predicate := getattr(plugin, "is_plugin_supported_field", None): + return predicate(field) # type: ignore[no-any-return] + return plugin.is_plugin_supported_type(field.annotation) + + def get_plugin_for(self, field_definition: FieldDefinition) -> OpenAPISchemaPluginProtocol | None: + return next( + (plugin for plugin in self.plugins if self.plugin_supports_field(plugin, field_definition)), + None, + ) + + def is_constrained_field(self, field_definition: FieldDefinition) -> bool: + """Return if the field is constrained, taking into account constraints defined by plugins""" + return ( + isinstance(field_definition.kwarg_definition, (ParameterKwarg, BodyKwarg)) + and field_definition.kwarg_definition.is_constrained + ) or any( + p.is_constrained_field(field_definition) + for p in self.plugins + if isinstance(p, OpenAPISchemaPlugin) and p.is_plugin_supported_field(field_definition) + ) + + def is_undefined(self, value: Any) -> bool: + """Return if the field is undefined, taking into account undefined types defined by plugins""" + return is_undefined_sentinel(value) or any( + p.is_undefined_sentinel(value) for p in self.plugins if isinstance(p, OpenAPISchemaPlugin) + ) + + def for_field_definition(self, field_definition: FieldDefinition) -> Schema | Reference: + """Create a Schema for a given FieldDefinition. + + Args: + field_definition: A signature field instance. + + Returns: + A schema instance. + """ + + result: Schema | Reference + + if plugin_for_annotation := self.get_plugin_for(field_definition): + result = self.for_plugin(field_definition, plugin_for_annotation) + elif _should_create_enum_schema(field_definition): + annotation = _type_or_first_not_none_inner_type(field_definition) + result = create_enum_schema(annotation, include_null=field_definition.is_optional) + elif _should_create_literal_schema(field_definition): + annotation = ( + make_non_optional_union(field_definition.annotation) + if field_definition.is_optional + else field_definition.annotation + ) + result = create_literal_schema(annotation, include_null=field_definition.is_optional) + elif field_definition.is_optional: + result = self.for_optional_field(field_definition) + elif field_definition.is_union: + result = self.for_union_field(field_definition) + elif field_definition.is_type_var: + result = self.for_typevar() + elif field_definition.inner_types and not field_definition.is_generic: + result = self.for_object_type(field_definition) + elif self.is_constrained_field(field_definition): + result = self.for_constrained_field(field_definition) + elif field_definition.is_subclass_of(UploadFile): + result = self.for_upload_file(field_definition) + else: + result = create_schema_for_annotation(field_definition.annotation) + + return self.process_schema_result(field_definition, result) if isinstance(result, Schema) else result + + @staticmethod + def for_upload_file(field_definition: FieldDefinition) -> Schema: + """Create schema for UploadFile. + + Args: + field_definition: A field definition instance. + + Returns: + A Schema instance. + """ + + property_key = "file" + schema = Schema( + type=OpenAPIType.STRING, + content_media_type="application/octet-stream", + format=OpenAPIFormat.BINARY, + ) + + # If the type is `dict[str, UploadFile]`, then it's the same as a `list[UploadFile]` + # but we will internally convert that into a `dict[str, UploadFile]`. + if field_definition.is_non_string_sequence or field_definition.is_mapping: + property_key = "files" + schema = Schema(type=OpenAPIType.ARRAY, items=schema) + + # If the uploadfile is annotated directly on the handler, then the + # 'properties' needs to be created. Else, the 'properties' will be + # created by the corresponding plugin. + is_defined_on_handler = field_definition.name == "data" and isinstance( + field_definition.kwarg_definition, BodyKwarg + ) + if is_defined_on_handler: + return Schema(type=OpenAPIType.OBJECT, properties={property_key: schema}) + + return schema + + @staticmethod + def for_typevar() -> Schema: + """Create a schema for a TypeVar. + + Returns: + A schema instance. + """ + + return Schema(type=OpenAPIType.OBJECT) + + def for_optional_field(self, field_definition: FieldDefinition) -> Schema: + """Create a Schema for an optional FieldDefinition. + + Args: + field_definition: A signature field instance. + + Returns: + A schema instance. + """ + schema_or_reference = self.for_field_definition( + FieldDefinition.from_kwarg( + annotation=make_non_optional_union(field_definition.annotation), + name=field_definition.name, + default=field_definition.default, + ) + ) + if isinstance(schema_or_reference, Schema) and isinstance(schema_or_reference.one_of, list): + result = schema_or_reference.one_of + else: + result = [schema_or_reference] + + return Schema(one_of=[Schema(type=OpenAPIType.NULL), *result]) + + def for_union_field(self, field_definition: FieldDefinition) -> Schema: + """Create a Schema for a union FieldDefinition. + + Args: + field_definition: A signature field instance. + + Returns: + A schema instance. + """ + inner_types = (f for f in (field_definition.inner_types or []) if not self.is_undefined(f.annotation)) + values = list(map(self.for_field_definition, inner_types)) + return Schema(one_of=values) + + def for_object_type(self, field_definition: FieldDefinition) -> Schema: + """Create schema for object types (dict, Mapping, list, Sequence etc.) types. + + Args: + field_definition: A signature field instance. + + Returns: + A schema instance. + """ + if field_definition.has_inner_subclass_of(UploadFile): + return self.for_upload_file(field_definition) + + if field_definition.is_mapping: + return Schema( + type=OpenAPIType.OBJECT, + additional_properties=( + self.for_field_definition(field_definition.inner_types[1]) + if field_definition.inner_types and len(field_definition.inner_types) == 2 + else None + ), + ) + + if field_definition.is_non_string_sequence or field_definition.is_non_string_iterable: + # filters out ellipsis from tuple[int, ...] type annotations + inner_types = (f for f in field_definition.inner_types if f.annotation is not Ellipsis) + items = list(map(self.for_field_definition, inner_types or ())) + + return Schema( + type=OpenAPIType.ARRAY, + items=Schema(one_of=items) if len(items) > 1 else items[0], + ) + + raise ImproperlyConfiguredException( # pragma: no cover + f"Parameter '{field_definition.name}' with type '{field_definition.annotation}' could not be mapped to an Open API type. " + f"This can occur if a user-defined generic type is resolved as a parameter. If '{field_definition.name}' should " + "not be documented as a parameter, annotate it using the `Dependency` function, e.g., " + f"`{field_definition.name}: ... = Dependency(...)`." + ) + + def for_plugin(self, field_definition: FieldDefinition, plugin: OpenAPISchemaPluginProtocol) -> Schema | Reference: + """Create a schema using a plugin. + + Args: + field_definition: A signature field instance. + plugin: A plugin for the field type. + + Returns: + A schema instance. + """ + key = _get_normalized_schema_key(field_definition.annotation) + if (ref := self.schema_registry.get_reference_for_key(key)) is not None: + return ref + + schema = plugin.to_openapi_schema(field_definition=field_definition, schema_creator=self) + if isinstance(schema, SchemaDataContainer): # pragma: no cover + return self.for_field_definition( + FieldDefinition.from_kwarg( + annotation=schema.data_container, + name=field_definition.name, + default=field_definition.default, + extra=field_definition.extra, + kwarg_definition=field_definition.kwarg_definition, + ) + ) + return schema + + def for_constrained_field(self, field: FieldDefinition) -> Schema: + """Create Schema for Pydantic Constrained fields (created using constr(), conint() and so forth, or by subclassing + Constrained*) + + Args: + field: A signature field instance. + + Returns: + A schema instance. + """ + kwarg_definition = cast(Union[ParameterKwarg, BodyKwarg], field.kwarg_definition) + if any(is_class_and_subclass(field.annotation, t) for t in (int, float, Decimal)): + return create_numerical_constrained_field_schema(field.annotation, kwarg_definition) + if any(is_class_and_subclass(field.annotation, t) for t in (str, bytes)): # type: ignore[arg-type] + return create_string_constrained_field_schema(field.annotation, kwarg_definition) + if any(is_class_and_subclass(field.annotation, t) for t in (date, datetime)): + return create_date_constrained_field_schema(field.annotation, kwarg_definition) + return self.for_collection_constrained_field(field) + + def for_collection_constrained_field(self, field_definition: FieldDefinition) -> Schema: + """Create Schema from Constrained List/Set field. + + Args: + field_definition: A signature field instance. + + Returns: + A schema instance. + """ + schema = Schema(type=OpenAPIType.ARRAY) + kwarg_definition = cast(Union[ParameterKwarg, BodyKwarg], field_definition.kwarg_definition) + if kwarg_definition.min_items: + schema.min_items = kwarg_definition.min_items + if kwarg_definition.max_items: + schema.max_items = kwarg_definition.max_items + if any(is_class_and_subclass(field_definition.annotation, t) for t in (set, frozenset)): # type: ignore[arg-type] + schema.unique_items = True + + item_creator = self.not_generating_examples + if field_definition.inner_types: + items = list(map(item_creator.for_field_definition, field_definition.inner_types)) + schema.items = Schema(one_of=items) if len(items) > 1 else items[0] + else: + schema.items = item_creator.for_field_definition( + FieldDefinition.from_kwarg( + field_definition.annotation.item_type, f"{field_definition.annotation.__name__}Field" + ) + ) + return schema + + def process_schema_result(self, field: FieldDefinition, schema: Schema) -> Schema | Reference: + if field.kwarg_definition and field.is_const and field.has_default and schema.const is None: + schema.const = field.default + + if field.kwarg_definition: + for kwarg_definition_key, schema_key in KWARG_DEFINITION_ATTRIBUTE_TO_OPENAPI_PROPERTY_MAP.items(): + if (value := getattr(field.kwarg_definition, kwarg_definition_key, Empty)) and ( + not isinstance(value, Hashable) or not self.is_undefined(value) + ): + if schema_key == "examples": + value = get_json_schema_formatted_examples(cast("list[Example]", value)) + + # we only want to transfer values from the `KwargDefinition` to `Schema` if the schema object + # doesn't already have a value for that property. For example, if a field is a constrained date, + # by this point, we have already set the `exclusive_minimum` and/or `exclusive_maximum` fields + # to floating point timestamp values on the schema object. However, the original `date` objects + # that define those constraints on `KwargDefinition` are still `date` objects. We don't want to + # overwrite them here. + if getattr(schema, schema_key, None) is None: + setattr(schema, schema_key, value) + + if not schema.examples and self.generate_examples: + from litestar._openapi.schema_generation.examples import create_examples_for_field + + schema.examples = get_json_schema_formatted_examples(create_examples_for_field(field)) + + if schema.title and schema.type == OpenAPIType.OBJECT: + key = _get_normalized_schema_key(field.annotation) + return self.schema_registry.get_reference_for_key(key) or schema + return schema + + def create_component_schema( + self, + type_: FieldDefinition, + /, + required: list[str], + property_fields: Mapping[str, FieldDefinition], + openapi_type: OpenAPIType = OpenAPIType.OBJECT, + title: str | None = None, + examples: list[Any] | None = None, + ) -> Schema: + """Create a schema for the components/schemas section of the OpenAPI spec. + + These are schemas that can be referenced by other schemas in the document, including self references. + + To support self referencing schemas, the schema is added to the registry before schemas for its properties + are created. This allows the schema to be referenced by its properties. + + Args: + type_: ``FieldDefinition`` instance of the type to create a schema for. + required: A list of required fields. + property_fields: Mapping of name to ``FieldDefinition`` instances for the properties of the schema. + openapi_type: The OpenAPI type, defaults to ``OpenAPIType.OBJECT``. + title: The schema title, generated if not provided. + examples: A mapping of example names to ``Example`` instances, not required. + + Returns: + A schema instance. + """ + schema = self.schema_registry.get_schema_for_key(_get_normalized_schema_key(type_.annotation)) + schema.title = title or _get_type_schema_name(type_) + schema.required = required + schema.type = openapi_type + schema.properties = {k: self.for_field_definition(v) for k, v in property_fields.items()} + schema.examples = examples + return schema diff --git a/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/utils.py b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/utils.py new file mode 100644 index 0000000..7ce27ca --- /dev/null +++ b/venv/lib/python3.11/site-packages/litestar/_openapi/schema_generation/utils.py @@ -0,0 +1,114 @@ +from __future__ import annotations + +from enum import Enum +from typing import TYPE_CHECKING, Any, Mapping, _GenericAlias # type: ignore[attr-defined] + +from litestar.utils.helpers import get_name + +if TYPE_CHECKING: + from collections.abc import Sequence + + from litestar.openapi.spec import Example + from litestar.typing import FieldDefinition + +__all__ = ( + "_type_or_first_not_none_inner_type", + "_should_create_enum_schema", + "_should_create_literal_schema", + "_get_normalized_schema_key", +) + + +def _type_or_first_not_none_inner_type(field_definition: FieldDefinition) -> Any: + """Get the first inner type that is not None. + + This is a narrow focussed utility to be used when we know that a field definition either represents + a single type, or a single type in a union with `None`, and we want the single type. + + Args: + field_definition: A field definition instance. + + Returns: + A field definition instance. + """ + if not field_definition.is_optional: + return field_definition.annotation + inner = next((t for t in field_definition.inner_types if not t.is_none_type), None) + if inner is None: + raise ValueError("Field definition has no inner type that is not None") + return inner.annotation + + +def _should_create_enum_schema(field_definition: FieldDefinition) -> bool: + """Predicate to determine if we should create an enum schema for the field def, or not. + + This returns true if the field definition is an enum, or if the field definition is a union + of an enum and ``None``. + + When an annotation is ``SomeEnum | None`` we should create a schema for the enum that includes ``null`` + in the enum values. + + Args: + field_definition: A field definition instance. + + Returns: + A boolean + """ + return field_definition.is_subclass_of(Enum) or ( + field_definition.is_optional + and len(field_definition.args) == 2 + and field_definition.has_inner_subclass_of(Enum) + ) + + +def _should_create_literal_schema(field_definition: FieldDefinition) -> bool: + """Predicate to determine if we should create a literal schema for the field def, or not. + + This returns ``True`` if the field definition is an literal, or if the field definition is a union + of a literal and None. + + When an annotation is `Literal["anything"] | None` we should create a schema for the literal that includes `null` + in the enum values. + + Args: + field_definition: A field definition instance. + + Returns: + A boolean + """ + return ( + field_definition.is_literal + or field_definition.is_optional + and all(inner.is_literal for inner in field_definition.inner_types if not inner.is_none_type) + ) + + +def _get_normalized_schema_key(annotation: Any) -> tuple[str, ...]: + """Create a key for a type annotation. + + The key should be a tuple such as ``("path", "to", "type", "TypeName")``. + + Args: + annotation: a type annotation + + Returns: + A tuple of strings. + """ + module = getattr(annotation, "__module__", "") + name = str(annotation)[len(module) + 1 :] if isinstance(annotation, _GenericAlias) else annotation.__qualname__ + name = name.replace("..", ".") + return *module.split("."), name + + +def get_formatted_examples(field_definition: FieldDefinition, examples: Sequence[Example]) -> Mapping[str, Example]: + """Format the examples into the OpenAPI schema format.""" + + name = field_definition.name or get_name(field_definition.type_) + name = name.lower() + + return {f"{name}-example-{i}": example for i, example in enumerate(examples, 1)} + + +def get_json_schema_formatted_examples(examples: Sequence[Example]) -> list[Any]: + """Format the examples into the JSON schema format.""" + return [example.value for example in examples] -- cgit v1.2.3