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schema.py

import re
import warnings
from collections import defaultdict
from dataclasses import is_dataclass
from datetime import date, datetime, time, timedelta
from decimal import Decimal
from enum import Enum
from ipaddress import IPv4Address, IPv4Interface, IPv4Network, IPv6Address, IPv6Interface, IPv6Network
from pathlib import Path
from typing import (
    TYPE_CHECKING,
    Any,
    Callable,
    Dict,
    ForwardRef,
    FrozenSet,
    Generic,
    Iterable,
    List,
    Optional,
    Pattern,
    Sequence,
    Set,
    Tuple,
    Type,
    TypeVar,
    Union,
    cast,
)
from uuid import UUID

from typing_extensions import Annotated, Literal

from pydantic.v1.fields import (
    MAPPING_LIKE_SHAPES,
    SHAPE_DEQUE,
    SHAPE_FROZENSET,
    SHAPE_GENERIC,
    SHAPE_ITERABLE,
    SHAPE_LIST,
    SHAPE_SEQUENCE,
    SHAPE_SET,
    SHAPE_SINGLETON,
    SHAPE_TUPLE,
    SHAPE_TUPLE_ELLIPSIS,
    FieldInfo,
    ModelField,
)
from pydantic.v1.json import pydantic_encoder
from pydantic.v1.networks import AnyUrl, EmailStr
from pydantic.v1.types import (
    ConstrainedDecimal,
    ConstrainedFloat,
    ConstrainedFrozenSet,
    ConstrainedInt,
    ConstrainedList,
    ConstrainedSet,
    ConstrainedStr,
    SecretBytes,
    SecretStr,
    StrictBytes,
    StrictStr,
    conbytes,
    condecimal,
    confloat,
    confrozenset,
    conint,
    conlist,
    conset,
    constr,
)
from pydantic.v1.typing import (
    all_literal_values,
    get_args,
    get_origin,
    get_sub_types,
    is_callable_type,
    is_literal_type,
    is_namedtuple,
    is_none_type,
    is_union,
)
from pydantic.v1.utils import ROOT_KEY, get_model, lenient_issubclass

if TYPE_CHECKING:
    from pydantic.v1.dataclasses import Dataclass
    from pydantic.v1.main import BaseModel

default_prefix = '#/definitions/'
default_ref_template = '#/definitions/{model}'

TypeModelOrEnum = Union[Type['BaseModel'], Type[Enum]]
TypeModelSet = Set[TypeModelOrEnum]

def _apply_modify_schema(
    modify_schema: Callable[..., None], field: Optional[ModelField], field_schema: Dict[str, Any]
) -> None:
    from inspect import signature

sig = signature(modify_schema)
    args = set(sig.parameters.keys())
    if 'field' in args or 'kwargs' in args:
        modify_schema(field_schema, field=field)
    else:
        modify_schema(field_schema)

def schema(
    models: Sequence[Union[Type['BaseModel'], Type['Dataclass']]],
    *,
    by_alias: bool = True,
    title: Optional[str] = None,
    description: Optional[str] = None,
    ref_prefix: Optional[str] = None,
    ref_template: str = default_ref_template,
) -> Dict[str, Any]:
    """
    Process a list of models and generate a single JSON Schema with all of them defined in the ``definitions``
    top-level JSON key, including their sub-models.

:param models: a list of models to include in the generated JSON Schema
    :param by_alias: generate the schemas using the aliases defined, if any
    :param title: title for the generated schema that includes the definitions
    :param description: description for the generated schema
    :param ref_prefix: the JSON Pointer prefix for schema references with ``$ref``, if None, will be set to the
      default of ``#/definitions/``. Update it if you want the schemas to reference the definitions somewhere
      else, e.g. for OpenAPI use ``#/components/schemas/``. The resulting generated schemas will still be at the
      top-level key ``definitions``, so you can extract them from there. But all the references will have the set
      prefix.
    :param ref_template: Use a ``string.format()`` template for ``$ref`` instead of a prefix. This can be useful
      for references that cannot be represented by ``ref_prefix`` such as a definition stored in another file. For
      a sibling json file in a ``/schemas`` directory use ``"/schemas/${model}.json#"``.
    :return: dict with the JSON Schema with a ``definitions`` top-level key including the schema definitions for
      the models and sub-models passed in ``models``.
    """
    clean_models = [get_model(model) for model in models]
    flat_models = get_flat_models_from_models(clean_models)
    model_name_map = get_model_name_map(flat_models)
    definitions = {}
    output_schema: Dict[str, Any] = {}
    if title:
        output_schema['title'] = title
    if description:
        output_schema['description'] = description
    for model in clean_models:
        m_schema, m_definitions, m_nested_models = model_process_schema(
            model,
            by_alias=by_alias,
            model_name_map=model_name_map,
            ref_prefix=ref_prefix,
            ref_template=ref_template,
        )
        definitions.update(m_definitions)
        model_name = model_name_map[model]
        definitions[model_name] = m_schema
    if definitions:
        output_schema['definitions'] = definitions
    return output_schema

def model_schema(
    model: Union[Type['BaseModel'], Type['Dataclass']],
    by_alias: bool = True,
    ref_prefix: Optional[str] = None,
    ref_template: str = default_ref_template,
) -> Dict[str, Any]:
    """
    Generate a JSON Schema for one model. With all the sub-models defined in the ``definitions`` top-level
    JSON key.

:param model: a Pydantic model (a class that inherits from BaseModel)
    :param by_alias: generate the schemas using the aliases defined, if any
    :param ref_prefix: the JSON Pointer prefix for schema references with ``$ref``, if None, will be set to the
      default of ``#/definitions/``. Update it if you want the schemas to reference the definitions somewhere
      else, e.g. for OpenAPI use ``#/components/schemas/``. The resulting generated schemas will still be at the
      top-level key ``definitions``, so you can extract them from there. But all the references will have the set
      prefix.
    :param ref_template: Use a ``string.format()`` template for ``$ref`` instead of a prefix. This can be useful for
      references that cannot be represented by ``ref_prefix`` such as a definition stored in another file. For a
      sibling json file in a ``/schemas`` directory use ``"/schemas/${model}.json#"``.
    :return: dict with the JSON Schema for the passed ``model``
    """
    model = get_model(model)
    flat_models = get_flat_models_from_model(model)
    model_name_map = get_model_name_map(flat_models)
    model_name = model_name_map[model]
    m_schema, m_definitions, nested_models = model_process_schema(
        model, by_alias=by_alias, model_name_map=model_name_map, ref_prefix=ref_prefix, ref_template=ref_template
    )
    if model_name in nested_models:
        # model_name is in Nested models, it has circular references
        m_definitions[model_name] = m_schema
        m_schema = get_schema_ref(model_name, ref_prefix, ref_template, False)
    if m_definitions:
        m_schema.update({'definitions': m_definitions})
    return m_schema

def get_field_info_schema(field: ModelField, schema_overrides: bool = False) -> Tuple[Dict[str, Any], bool]:
    # If no title is explicitly set, we don't set title in the schema for enums.
    # The behaviour is the same as `BaseModel` reference, where the default title
    # is in the definitions part of the schema.
    schema_: Dict[str, Any] = {}
    if field.field_info.title or not lenient_issubclass(field.type_, Enum):
        schema_['title'] = field.field_info.title or field.alias.title().replace('_', ' ')

if field.field_info.title:
        schema_overrides = True

if field.field_info.description:
        schema_['description'] = field.field_info.description
        schema_overrides = True

if not field.required and field.default is not None and not is_callable_type(field.outer_type_):
        schema_['default'] = encode_default(field.default)
        schema_overrides = True

return schema_, schema_overrides

def field_schema(
    field: ModelField,
    *,
    by_alias: bool = True,
    model_name_map: Dict[TypeModelOrEnum, str],
    ref_prefix: Optional[str] = None,
    ref_template: str = default_ref_template,
    known_models: Optional[TypeModelSet] = None,
) -> Tuple[Dict[str, Any], Dict[str, Any], Set[str]]:
    """
    Process a Pydantic field and return a tuple with a JSON Schema for it as the first item.
    Also return a dictionary of definitions with models as keys and their schemas as values. If the passed field
    is a model and has sub-models, and those sub-models don't have overrides (as ``title``, ``default``, etc), they
    will be included in the definitions and referenced in the schema instead of included recursively.

:param field: a Pydantic ``ModelField``
    :param by_alias: use the defined alias (if any) in the returned schema
    :param model_name_map: used to generate the JSON Schema references to other models included in the definitions
    :param ref_prefix: the JSON Pointer prefix to use for references to other schemas, if None, the default of
      #/definitions/ will be used
    :param ref_template: Use a ``string.format()`` template for ``$ref`` instead of a prefix. This can be useful for
      references that cannot be represented by ``ref_prefix`` such as a definition stored in another file. For a
      sibling json file in a ``/schemas`` directory use ``"/schemas/${model}.json#"``.
    :param known_models: used to solve circular references
    :return: tuple of the schema for this field and additional definitions
    """
    s, schema_overrides = get_field_info_schema(field)

validation_schema = get_field_schema_validations(field)
    if validation_schema:
        s.update(validation_schema)
        schema_overrides = True

f_schema, f_definitions, f_nested_models = field_type_schema(
        field,
        by_alias=by_alias,
        model_name_map=model_name_map,
        schema_overrides=schema_overrides,
        ref_prefix=ref_prefix,
        ref_template=ref_template,
        known_models=known_models or set(),
    )

# $ref will only be returned when there are no schema_overrides
    if '$ref' in f_schema:
        return f_schema, f_definitions, f_nested_models
    else:
        s.update(f_schema)
        return s, f_definitions, f_nested_models

numeric_types = (int, float, Decimal)
_str_types_attrs: Tuple[Tuple[str, Union[type, Tuple[type, ...]], str], ...] = (
    ('max_length', numeric_types, 'maxLength'),
    ('min_length', numeric_types, 'minLength'),
    ('regex', str, 'pattern'),
)

_numeric_types_attrs: Tuple[Tuple[str, Union[type, Tuple[type, ...]], str], ...] = (
    ('gt', numeric_types, 'exclusiveMinimum'),
    ('lt', numeric_types, 'exclusiveMaximum'),
    ('ge', numeric_types, 'minimum'),
    ('le', numeric_types, 'maximum'),
    ('multiple_of', numeric_types, 'multipleOf'),
)

def get_field_schema_validations(field: ModelField) -> Dict[str, Any]:
    """
    Get the JSON Schema validation keywords for a ``field`` with an annotation of
    a Pydantic ``FieldInfo`` with validation arguments.
    """
    f_schema: Dict[str, Any] = {}

if lenient_issubclass(field.type_, Enum):
        # schema is already updated by `enum_process_schema`; just update with field extra
        if field.field_info.extra:
            f_schema.update(field.field_info.extra)
        return f_schema

if lenient_issubclass(field.type_, (str, bytes)):
        for attr_name, t, keyword in _str_types_attrs:
            attr = getattr(field.field_info, attr_name, None)
            if isinstance(attr, t):
                f_schema[keyword] = attr
    if lenient_issubclass(field.type_, numeric_types) and not issubclass(field.type_, bool):
        for attr_name, t, keyword in _numeric_types_attrs:
            attr = getattr(field.field_info, attr_name, None)
            if isinstance(attr, t):
                f_schema[keyword] = attr
    if field.field_info is not None and field.field_info.const:
        f_schema['const'] = field.default
    if field.field_info.extra:
        f_schema.update(field.field_info.extra)
    modify_schema = getattr(field.outer_type_, '__modify_schema__', None)
    if modify_schema:
        _apply_modify_schema(modify_schema, field, f_schema)
    return f_schema

def get_model_name_map(unique_models: TypeModelSet) -> Dict[TypeModelOrEnum, str]:
    """
    Process a set of models and generate unique names for them to be used as keys in the JSON Schema
    definitions. By default the names are the same as the class name. But if two models in different Python
    modules have the same name (e.g. "users.Model" and "items.Model"), the generated names will be
    based on the Python module path for those conflicting models to prevent name collisions.

:param unique_models: a Python set of models
    :return: dict mapping models to names
    """
    name_model_map = {}
    conflicting_names: Set[str] = set()
    for model in unique_models:
        model_name = normalize_name(model.__name__)
        if model_name in conflicting_names:
            model_name = get_long_model_name(model)
            name_model_map[model_name] = model
        elif model_name in name_model_map:
            conflicting_names.add(model_name)
            conflicting_model = name_model_map.pop(model_name)
            name_model_map[get_long_model_name(conflicting_model)] = conflicting_model
            name_model_map[get_long_model_name(model)] = model
        else:
            name_model_map[model_name] = model
    return {v: k for k, v in name_model_map.items()}

def get_flat_models_from_model(model: Type['BaseModel'], known_models: Optional[TypeModelSet] = None) -> TypeModelSet:
    """
    Take a single ``model`` and generate a set with itself and all the sub-models in the tree. I.e. if you pass
    model ``Foo`` (subclass of Pydantic ``BaseModel``) as ``model``, and it has a field of type ``Bar`` (also
    subclass of ``BaseModel``) and that model ``Bar`` has a field of type ``Baz`` (also subclass of ``BaseModel``),
    the return value will be ``set([Foo, Bar, Baz])``.

:param model: a Pydantic ``BaseModel`` subclass
    :param known_models: used to solve circular references
    :return: a set with the initial model and all its sub-models
    """
    known_models = known_models or set()
    flat_models: TypeModelSet = set()
    flat_models.add(model)
    known_models |= flat_models
    fields = cast(Sequence[ModelField], model.__fields__.values())
    flat_models |= get_flat_models_from_fields(fields, known_models=known_models)
    return flat_models

def get_flat_models_from_field(field: ModelField, known_models: TypeModelSet) -> TypeModelSet:
    """
    Take a single Pydantic ``ModelField`` (from a model) that could have been declared as a subclass of BaseModel
    (so, it could be a submodel), and generate a set with its model and all the sub-models in the tree.
    I.e. if you pass a field that was declared to be of type ``Foo`` (subclass of BaseModel) as ``field``, and that
    model ``Foo`` has a field of type ``Bar`` (also subclass of ``BaseModel``) and that model ``Bar`` has a field of
    type ``Baz`` (also subclass of ``BaseModel``), the return value will be ``set([Foo, Bar, Baz])``.

:param field: a Pydantic ``ModelField``
    :param known_models: used to solve circular references
    :return: a set with the model used in the declaration for this field, if any, and all its sub-models
    """
    from pydantic.v1.main import BaseModel

flat_models: TypeModelSet = set()

field_type = field.type_
    if lenient_issubclass(getattr(field_type, '__pydantic_model__', None), BaseModel):
        field_type = field_type.__pydantic_model__

if field.sub_fields and not lenient_issubclass(field_type, BaseModel):
        flat_models |= get_flat_models_from_fields(field.sub_fields, known_models=known_models)
    elif lenient_issubclass(field_type, BaseModel) and field_type not in known_models:
        flat_models |= get_flat_models_from_model(field_type, known_models=known_models)
    elif lenient_issubclass(field_type, Enum):
        flat_models.add(field_type)
    return flat_models

def get_flat_models_from_fields(fields: Sequence[ModelField], known_models: TypeModelSet) -> TypeModelSet:
    """
    Take a list of Pydantic  ``ModelField``s (from a model) that could have been declared as subclasses of ``BaseModel``
    (so, any of them could be a submodel), and generate a set with their models and all the sub-models in the tree.
    I.e. if you pass a the fields of a model ``Foo`` (subclass of ``BaseModel``) as ``fields``, and on of them has a
    field of type ``Bar`` (also subclass of ``BaseModel``) and that model ``Bar`` has a field of type ``Baz`` (also
    subclass of ``BaseModel``), the return value will be ``set([Foo, Bar, Baz])``.

:param fields: a list of Pydantic ``ModelField``s
    :param known_models: used to solve circular references
    :return: a set with any model declared in the fields, and all their sub-models
    """
    flat_models: TypeModelSet = set()
    for field in fields:
        flat_models |= get_flat_models_from_field(field, known_models=known_models)
    return flat_models

def get_flat_models_from_models(models: Sequence[Type['BaseModel']]) -> TypeModelSet:
    """
    Take a list of ``models`` and generate a set with them and all their sub-models in their trees. I.e. if you pass
    a list of two models, ``Foo`` and ``Bar``, both subclasses of Pydantic ``BaseModel`` as models, and ``Bar`` has
    a field of type ``Baz`` (also subclass of ``BaseModel``), the return value will be ``set([Foo, Bar, Baz])``.
    """
    flat_models: TypeModelSet = set()
    for model in models:
        flat_models |= get_flat_models_from_model(model)
    return flat_models

def get_long_model_name(model: TypeModelOrEnum) -> str:
    return f'{model.__module__}__{model.__qualname__}'.replace('.', '__')

def field_type_schema(
    field: ModelField,
    *,
    by_alias: bool,
    model_name_map: Dict[TypeModelOrEnum, str],
    ref_template: str,
    schema_overrides: bool = False,
    ref_prefix: Optional[str] = None,
    known_models: TypeModelSet,
) -> Tuple[Dict[str, Any], Dict[str, Any], Set[str]]:
    """
    Used by ``field_schema()``, you probably should be using that function.

Take a single ``field`` and generate the schema for its type only, not including additional
    information as title, etc. Also return additional schema definitions, from sub-models.
    """
    from pydantic.v1.main import BaseModel  # noqa: F811

definitions = {}
    nested_models: Set[str] = set()
    f_schema: Dict[str, Any]
    if field.shape in {
        SHAPE_LIST,
        SHAPE_TUPLE_ELLIPSIS,
        SHAPE_SEQUENCE,
        SHAPE_SET,
        SHAPE_FROZENSET,
        SHAPE_ITERABLE,
        SHAPE_DEQUE,
    }:
        items_schema, f_definitions, f_nested_models = field_singleton_schema(
            field,
            by_alias=by_alias,
            model_name_map=model_name_map,
            ref_prefix=ref_prefix,
            ref_template=ref_template,
            known_models=known_models,
        )
        definitions.update(f_definitions)
        nested_models.update(f_nested_models)
        f_schema = {'type': 'array', 'items': items_schema}
        if field.shape in {SHAPE_SET, SHAPE_FROZENSET}:
            f_schema['uniqueItems'] = True

elif field.shape in MAPPING_LIKE_SHAPES:
        f_schema = {'type': 'object'}
        key_field = cast(ModelField, field.key_field)
        regex = getattr(key_field.type_, 'regex', None)
        items_schema, f_definitions, f_nested_models = field_singleton_schema(
            field,
            by_alias=by_alias,
            model_name_map=model_name_map,
            ref_prefix=ref_prefix,
            ref_template=ref_template,
            known_models=known_models,
        )
        definitions.update(f_definitions)
        nested_models.update(f_nested_models)
        if regex:
            # Dict keys have a regex pattern
            # items_schema might be a schema or empty dict, add it either way
            f_schema['patternProperties'] = {ConstrainedStr._get_pattern(regex): items_schema}
        if items_schema:
            # The dict values are not simply Any, so they need a schema
            f_schema['additionalProperties'] = items_schema
    elif field.shape == SHAPE_TUPLE or (field.shape == SHAPE_GENERIC and not issubclass(field.type_, BaseModel)):
        sub_schema = []
        sub_fields = cast(List[ModelField], field.sub_fields)
        for sf in sub_fields:
            sf_schema, sf_definitions, sf_nested_models = field_type_schema(
                sf,
                by_alias=by_alias,
                model_name_map=model_name_map,
                ref_prefix=ref_prefix,
                ref_template=ref_template,
                known_models=known_models,
            )
            definitions.update(sf_definitions)
            nested_models.update(sf_nested_models)
            sub_schema.append(sf_schema)

sub_fields_len = len(sub_fields)
        if field.shape == SHAPE_GENERIC:
            all_of_schemas = sub_schema[0] if sub_fields_len == 1 else {'type': 'array', 'items': sub_schema}
            f_schema = {'allOf': [all_of_schemas]}
        else:
            f_schema = {
                'type': 'array',
                'minItems': sub_fields_len,
                'maxItems': sub_fields_len,
            }
            if sub_fields_len >= 1:
                f_schema['items'] = sub_schema
    else:
        assert field.shape in {SHAPE_SINGLETON, SHAPE_GENERIC}, field.shape
        f_schema, f_definitions, f_nested_models = field_singleton_schema(
            field,
            by_alias=by_alias,
            model_name_map=model_name_map,
            schema_overrides=schema_overrides,
            ref_prefix=ref_prefix,
            ref_template=ref_template,
            known_models=known_models,
        )
        definitions.update(f_definitions)
        nested_models.update(f_nested_models)

# check field type to avoid repeated calls to the same __modify_schema__ method
    if field.type_ != field.outer_type_:
        if field.shape == SHAPE_GENERIC:
            field_type = field.type_
        else:
            field_type = field.outer_type_
        modify_schema = getattr(field_type, '__modify_schema__', None)
        if modify_schema:
            _apply_modify_schema(modify_schema, field, f_schema)
    return f_schema, definitions, nested_models

def model_process_schema(
    model: TypeModelOrEnum,
    *,
    by_alias: bool = True,
    model_name_map: Dict[TypeModelOrEnum, str],
    ref_prefix: Optional[str] = None,
    ref_template: str = default_ref_template,
    known_models: Optional[TypeModelSet] = None,
    field: Optional[ModelField] = None,
) -> Tuple[Dict[str, Any], Dict[str, Any], Set[str]]:
    """
    Used by ``model_schema()``, you probably should be using that function.

Take a single ``model`` and generate its schema. Also return additional schema definitions, from sub-models. The
    sub-models of the returned schema will be referenced, but their definitions will not be included in the schema. All
    the definitions are returned as the second value.
    """
    from inspect import getdoc, signature

known_models = known_models or set()
    if lenient_issubclass(model, Enum):
        model = cast(Type[Enum], model)
        s = enum_process_schema(model, field=field)
        return s, {}, set()
    model = cast(Type['BaseModel'], model)
    s = {'title': model.__config__.title or model.__name__}
    doc = getdoc(model)
    if doc:
        s['description'] = doc
    known_models.add(model)
    m_schema, m_definitions, nested_models = model_type_schema(
        model,
        by_alias=by_alias,
        model_name_map=model_name_map,
        ref_prefix=ref_prefix,
        ref_template=ref_template,
        known_models=known_models,
    )
    s.update(m_schema)
    schema_extra = model.__config__.schema_extra
    if callable(schema_extra):
        if len(signature(schema_extra).parameters) == 1:
            schema_extra(s)
        else:
            schema_extra(s, model)
    else:
        s.update(schema_extra)
    return s, m_definitions, nested_models

def model_type_schema(
    model: Type['BaseModel'],
    *,
    by_alias: bool,
    model_name_map: Dict[TypeModelOrEnum, str],
    ref_template: str,
    ref_prefix: Optional[str] = None,
    known_models: TypeModelSet,
) -> Tuple[Dict[str, Any], Dict[str, Any], Set[str]]:
    """
    You probably should be using ``model_schema()``, this function is indirectly used by that function.

Take a single ``model`` and generate the schema for its type only, not including additional
    information as title, etc. Also return additional schema definitions, from sub-models.
    """
    properties = {}
    required = []
    definitions: Dict[str, Any] = {}
    nested_models: Set[str] = set()
    for k, f in model.__fields__.items():
        try:
            f_schema, f_definitions, f_nested_models = field_schema(
                f,
                by_alias=by_alias,
                model_name_map=model_name_map,
                ref_prefix=ref_prefix,
                ref_template=ref_template,
                known_models=known_models,
            )
        except SkipField as skip:
            warnings.warn(skip.message, UserWarning)
            continue
        definitions.update(f_definitions)
        nested_models.update(f_nested_models)
        if by_alias:
            properties[f.alias] = f_schema
            if f.required:
                required.append(f.alias)
        else:
            properties[k] = f_schema
            if f.required:
                required.append(k)
    if ROOT_KEY in properties:
        out_schema = properties[ROOT_KEY]
        out_schema['title'] = model.__config__.title or model.__name__
    else:
        out_schema = {'type': 'object', 'properties': properties}
        if required:
            out_schema['required'] = required
    if model.__config__.extra == 'forbid':
        out_schema['additionalProperties'] = False
    return out_schema, definitions, nested_models

def enum_process_schema(enum: Type[Enum], *, field: Optional[ModelField] = None) -> Dict[str, Any]:
    """
    Take a single `enum` and generate its schema.

This is similar to the `model_process_schema` function, but applies to ``Enum`` objects.
    """
    import inspect

schema_: Dict[str, Any] = {
        'title': enum.__name__,
        # Python assigns all enums a default docstring value of 'An enumeration', so
        # all enums will have a description field even if not explicitly provided.
        'description': inspect.cleandoc(enum.__doc__ or 'An enumeration.'),
        # Add enum values and the enum field type to the schema.
        'enum': [item.value for item in cast(Iterable[Enum], enum)],
    }

add_field_type_to_schema(enum, schema_)

modify_schema = getattr(enum, '__modify_schema__', None)
    if modify_schema:
        _apply_modify_schema(modify_schema, field, schema_)

return schema_

def field_singleton_sub_fields_schema(
    field: ModelField,
    *,
    by_alias: bool,
    model_name_map: Dict[TypeModelOrEnum, str],
    ref_template: str,
    schema_overrides: bool = False,
    ref_prefix: Optional[str] = None,
    known_models: TypeModelSet,
) -> Tuple[Dict[str, Any], Dict[str, Any], Set[str]]:
    """
    This function is indirectly used by ``field_schema()``, you probably should be using that function.

Take a list of Pydantic ``ModelField`` from the declaration of a type with parameters, and generate their
    schema. I.e., fields used as "type parameters", like ``str`` and ``int`` in ``Tuple[str, int]``.
    """
    sub_fields = cast(List[ModelField], field.sub_fields)
    definitions = {}
    nested_models: Set[str] = set()
    if len(sub_fields) == 1:
        return field_type_schema(
            sub_fields[0],
            by_alias=by_alias,
            model_name_map=model_name_map,
            schema_overrides=schema_overrides,
            ref_prefix=ref_prefix,
            ref_template=ref_template,
            known_models=known_models,
        )
    else:
        s: Dict[str, Any] = {}
        # https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.2.md#discriminator-object
        field_has_discriminator: bool = field.discriminator_key is not None
        if field_has_discriminator:
            assert field.sub_fields_mapping is not None

discriminator_models_refs: Dict[str, Union[str, Dict[str, Any]]] = {}

for discriminator_value, sub_field in field.sub_fields_mapping.items():
                if isinstance(discriminator_value, Enum):
                    discriminator_value = str(discriminator_value.value)
                # sub_field is either a `BaseModel` or directly an `Annotated` `Union` of many
                if is_union(get_origin(sub_field.type_)):
                    sub_models = get_sub_types(sub_field.type_)
                    discriminator_models_refs[discriminator_value] = {
                        model_name_map[sub_model]: get_schema_ref(
                            model_name_map[sub_model], ref_prefix, ref_template, False
                        )
                        for sub_model in sub_models
                    }
                else:
                    sub_field_type = sub_field.type_
                    if hasattr(sub_field_type, '__pydantic_model__'):
                        sub_field_type = sub_field_type.__pydantic_model__

discriminator_model_name = model_name_map[sub_field_type]
                    discriminator_model_ref = get_schema_ref(discriminator_model_name, ref_prefix, ref_template, False)
                    discriminator_models_refs[discriminator_value] = discriminator_model_ref['$ref']

s['discriminator'] = {
                'propertyName': field.discriminator_alias,
                'mapping': discriminator_models_refs,
            }

sub_field_schemas = []
        for sf in sub_fields:
            sub_schema, sub_definitions, sub_nested_models = field_type_schema(
                sf,
                by_alias=by_alias,
                model_name_map=model_name_map,
                schema_overrides=schema_overrides,
                ref_prefix=ref_prefix,
                ref_template=ref_template,
                known_models=known_models,
            )
            definitions.update(sub_definitions)
            if schema_overrides and 'allOf' in sub_schema:
                # if the sub_field is a referenced schema we only need the referenced
                # object. Otherwise we will end up with several allOf inside anyOf/oneOf.
                # See https://github.com/pydantic/pydantic/issues/1209
                sub_schema = sub_schema['allOf'][0]

if sub_schema.keys() == {'discriminator', 'oneOf'}:
                # we don't want discriminator information inside oneOf choices, this is dealt with elsewhere
                sub_schema.pop('discriminator')
            sub_field_schemas.append(sub_schema)
            nested_models.update(sub_nested_models)
        s['oneOf' if field_has_discriminator else 'anyOf'] = sub_field_schemas
        return s, definitions, nested_models

# Order is important, e.g. subclasses of str must go before str
# this is used only for standard library types, custom types should use __modify_schema__ instead
field_class_to_schema: Tuple[Tuple[Any, Dict[str, Any]], ...] = (
    (Path, {'type': 'string', 'format': 'path'}),
    (datetime, {'type': 'string', 'format': 'date-time'}),
    (date, {'type': 'string', 'format': 'date'}),
    (time, {'type': 'string', 'format': 'time'}),
    (timedelta, {'type': 'number', 'format': 'time-delta'}),
    (IPv4Network, {'type': 'string', 'format': 'ipv4network'}),
    (IPv6Network, {'type': 'string', 'format': 'ipv6network'}),
    (IPv4Interface, {'type': 'string', 'format': 'ipv4interface'}),
    (IPv6Interface, {'type': 'string', 'format': 'ipv6interface'}),
    (IPv4Address, {'type': 'string', 'format': 'ipv4'}),
    (IPv6Address, {'type': 'string', 'format': 'ipv6'}),
    (Pattern, {'type': 'string', 'format': 'regex'}),
    (str, {'type': 'string'}),
    (bytes, {'type': 'string', 'format': 'binary'}),
    (bool, {'type': 'boolean'}),
    (int, {'type': 'integer'}),
    (float, {'type': 'number'}),
    (Decimal, {'type': 'number'}),
    (UUID, {'type': 'string', 'format': 'uuid'}),
    (dict, {'type': 'object'}),
    (list, {'type': 'array', 'items': {}}),
    (tuple, {'type': 'array', 'items': {}}),
    (set, {'type': 'array', 'items': {}, 'uniqueItems': True}),
    (frozenset, {'type': 'array', 'items': {}, 'uniqueItems': True}),
)

json_scheme = {'type': 'string', 'format': 'json-string'}

def add_field_type_to_schema(field_type: Any, schema_: Dict[str, Any]) -> None:
    """
    Update the given `schema` with the type-specific metadata for the given `field_type`.

This function looks through `field_class_to_schema` for a class that matches the given `field_type`,
    and then modifies the given `schema` with the information from that type.
    """
    for type_, t_schema in field_class_to_schema:
        # Fallback for `typing.Pattern` and `re.Pattern` as they are not a valid class
        if lenient_issubclass(field_type, type_) or field_type is type_ is Pattern:
            schema_.update(t_schema)
            break

def get_schema_ref(name: str, ref_prefix: Optional[str], ref_template: str, schema_overrides: bool) -> Dict[str, Any]:
    if ref_prefix:
        schema_ref = {'$ref': ref_prefix + name}
    else:
        schema_ref = {'$ref': ref_template.format(model=name)}
    return {'allOf': [schema_ref]} if schema_overrides else schema_ref

def field_singleton_schema(  # noqa: C901 (ignore complexity)
    field: ModelField,
    *,
    by_alias: bool,
    model_name_map: Dict[TypeModelOrEnum, str],
    ref_template: str,
    schema_overrides: bool = False,
    ref_prefix: Optional[str] = None,
    known_models: TypeModelSet,
) -> Tuple[Dict[str, Any], Dict[str, Any], Set[str]]:
    """
    This function is indirectly used by ``field_schema()``, you should probably be using that function.

Take a single Pydantic ``ModelField``, and return its schema and any additional definitions from sub-models.
    """
    from pydantic.v1.main import BaseModel

definitions: Dict[str, Any] = {}
    nested_models: Set[str] = set()
    field_type = field.type_

# Recurse into this field if it contains sub_fields and is NOT a
    # BaseModel OR that BaseModel is a const
    if field.sub_fields and (
        (field.field_info and field.field_info.const) or not lenient_issubclass(field_type, BaseModel)
    ):
        return field_singleton_sub_fields_schema(
            field,
            by_alias=by_alias,
            model_name_map=model_name_map,
            schema_overrides=schema_overrides,
            ref_prefix=ref_prefix,
            ref_template=ref_template,
            known_models=known_models,
        )
    if field_type is Any or field_type is object or field_type.__class__ == TypeVar or get_origin(field_type) is type:
        return {}, definitions, nested_models  # no restrictions
    if is_none_type(field_type):
        return {'type': 'null'}, definitions, nested_models
    if is_callable_type(field_type):
        raise SkipField(f'Callable {field.name} was excluded from schema since JSON schema has no equivalent type.')
    f_schema: Dict[str, Any] = {}
    if field.field_info is not None and field.field_info.const:
        f_schema['const'] = field.default

if is_literal_type(field_type):
        values = tuple(x.value if isinstance(x, Enum) else x for x in all_literal_values(field_type))

if len({v.__class__ for v in values}) > 1:
            return field_schema(
                multitypes_literal_field_for_schema(values, field),
                by_alias=by_alias,
                model_name_map=model_name_map,
                ref_prefix=ref_prefix,
                ref_template=ref_template,
                known_models=known_models,
            )

# All values have the same type
        field_type = values[0].__class__
        f_schema['enum'] = list(values)
        add_field_type_to_schema(field_type, f_schema)
    elif lenient_issubclass(field_type, Enum):
        enum_name = model_name_map[field_type]
        f_schema, schema_overrides = get_field_info_schema(field, schema_overrides)
        f_schema.update(get_schema_ref(enum_name, ref_prefix, ref_template, schema_overrides))
        definitions[enum_name] = enum_process_schema(field_type, field=field)
    elif is_namedtuple(field_type):
        sub_schema, *_ = model_process_schema(
            field_type.__pydantic_model__,
            by_alias=by_alias,
            model_name_map=model_name_map,
            ref_prefix=ref_prefix,
            ref_template=ref_template,
            known_models=known_models,
            field=field,
        )
        items_schemas = list(sub_schema['properties'].values())
        f_schema.update(
            {
                'type': 'array',
                'items': items_schemas,
                'minItems': len(items_schemas),
                'maxItems': len(items_schemas),
            }
        )
    elif not hasattr(field_type, '__pydantic_model__'):
        add_field_type_to_schema(field_type, f_schema)

modify_schema = getattr(field_type, '__modify_schema__', None)
        if modify_schema:
            _apply_modify_schema(modify_schema, field, f_schema)

if f_schema:
        return f_schema, definitions, nested_models

# Handle dataclass-based models
    if lenient_issubclass(getattr(field_type, '__pydantic_model__', None), BaseModel):
        field_type = field_type.__pydantic_model__

if issubclass(field_type, BaseModel):
        model_name = model_name_map[field_type]
        if field_type not in known_models:
            sub_schema, sub_definitions, sub_nested_models = model_process_schema(
                field_type,
                by_alias=by_alias,
                model_name_map=model_name_map,
                ref_prefix=ref_prefix,
                ref_template=ref_template,
                known_models=known_models,
                field=field,
            )
            definitions.update(sub_definitions)
            definitions[model_name] = sub_schema
            nested_models.update(sub_nested_models)
        else:
            nested_models.add(model_name)
        schema_ref = get_schema_ref(model_name, ref_prefix, ref_template, schema_overrides)
        return schema_ref, definitions, nested_models

# For generics with no args
    args = get_args(field_type)
    if args is not None and not args and Generic in field_type.__bases__:
        return f_schema, definitions, nested_models

raise ValueError(f'Value not declarable with JSON Schema, field: {field}')

def multitypes_literal_field_for_schema(values: Tuple[Any, ...], field: ModelField) -> ModelField:
    """
    To support `Literal` with values of different types, we split it into multiple `Literal` with same type
    e.g. `Literal['qwe', 'asd', 1, 2]` becomes `Union[Literal['qwe', 'asd'], Literal[1, 2]]`
    """
    literal_distinct_types = defaultdict(list)
    for v in values:
        literal_distinct_types[v.__class__].append(v)
    distinct_literals = (Literal[tuple(same_type_values)] for same_type_values in literal_distinct_types.values())

return ModelField(
        name=field.name,
        type_=Union[tuple(distinct_literals)],  # type: ignore
        class_validators=field.class_validators,
        model_config=field.model_config,
        default=field.default,
        required=field.required,
        alias=field.alias,
        field_info=field.field_info,
    )

def encode_default(dft: Any) -> Any:
    from pydantic.v1.main import BaseModel

if isinstance(dft, BaseModel) or is_dataclass(dft):
        dft = cast('dict[str, Any]', pydantic_encoder(dft))

if isinstance(dft, dict):
        return {encode_default(k): encode_default(v) for k, v in dft.items()}
    elif isinstance(dft, Enum):
        return dft.value
    elif isinstance(dft, (int, float, str)):
        return dft
    elif isinstance(dft, (list, tuple)):
        t = dft.__class__
        seq_args = (encode_default(v) for v in dft)
        return t(*seq_args) if is_namedtuple(t) else t(seq_args)
    elif dft is None:
        return None
    else:
        return pydantic_encoder(dft)

_map_types_constraint: Dict[Any, Callable[..., type]] = {int: conint, float: confloat, Decimal: condecimal}

def get_annotation_from_field_info(
    annotation: Any, field_info: FieldInfo, field_name: str, validate_assignment: bool = False
) -> Type[Any]:
    """
    Get an annotation with validation implemented for numbers and strings based on the field_info.
    :param annotation: an annotation from a field specification, as ``str``, ``ConstrainedStr``
    :param field_info: an instance of FieldInfo, possibly with declarations for validations and JSON Schema
    :param field_name: name of the field for use in error messages
    :param validate_assignment: default False, flag for BaseModel Config value of validate_assignment
    :return: the same ``annotation`` if unmodified or a new annotation with validation in place
    """
    constraints = field_info.get_constraints()
    used_constraints: Set[str] = set()
    if constraints:
        annotation, used_constraints = get_annotation_with_constraints(annotation, field_info)
    if validate_assignment:
        used_constraints.add('allow_mutation')

unused_constraints = constraints - used_constraints
    if unused_constraints:
        raise ValueError(
            f'On field "{field_name}" the following field constraints are set but not enforced: '
            f'{", ".join(unused_constraints)}. '
            f'\nFor more details see https://docs.pydantic.dev/usage/schema/#unenforced-field-constraints'
        )

return annotation

def get_annotation_with_constraints(annotation: Any, field_info: FieldInfo) -> Tuple[Type[Any], Set[str]]:  # noqa: C901
    """
    Get an annotation with used constraints implemented for numbers and strings based on the field_info.

:param annotation: an annotation from a field specification, as ``str``, ``ConstrainedStr``
    :param field_info: an instance of FieldInfo, possibly with declarations for validations and JSON Schema
    :return: the same ``annotation`` if unmodified or a new annotation along with the used constraints.
    """
    used_constraints: Set[str] = set()

def go(type_: Any) -> Type[Any]:
        if (
            is_literal_type(type_)
            or isinstance(type_, ForwardRef)
            or lenient_issubclass(type_, (ConstrainedList, ConstrainedSet, ConstrainedFrozenSet))
        ):
            return type_
        origin = get_origin(type_)
        if origin is not None:
            args: Tuple[Any, ...] = get_args(type_)
            if any(isinstance(a, ForwardRef) for a in args):
                # forward refs cause infinite recursion below
                return type_

if origin is Annotated:
                return go(args[0])
            if is_union(origin):
                return Union[tuple(go(a) for a in args)]  # type: ignore

if issubclass(origin, List) and (
                field_info.min_items is not None
                or field_info.max_items is not None
                or field_info.unique_items is not None
            ):
                used_constraints.update({'min_items', 'max_items', 'unique_items'})
                return conlist(
                    go(args[0]),
                    min_items=field_info.min_items,
                    max_items=field_info.max_items,
                    unique_items=field_info.unique_items,
                )

if issubclass(origin, Set) and (field_info.min_items is not None or field_info.max_items is not None):
                used_constraints.update({'min_items', 'max_items'})
                return conset(go(args[0]), min_items=field_info.min_items, max_items=field_info.max_items)

if issubclass(origin, FrozenSet) and (field_info.min_items is not None or field_info.max_items is not None):
                used_constraints.update({'min_items', 'max_items'})
                return confrozenset(go(args[0]), min_items=field_info.min_items, max_items=field_info.max_items)

for t in (Tuple, List, Set, FrozenSet, Sequence):
                if issubclass(origin, t):  # type: ignore
                    return t[tuple(go(a) for a in args)]  # type: ignore

if issubclass(origin, Dict):
                return Dict[args[0], go(args[1])]  # type: ignore

attrs: Optional[Tuple[str, ...]] = None
        constraint_func: Optional[Callable[..., type]] = None
        if isinstance(type_, type):
            if issubclass(type_, (SecretStr, SecretBytes)):
                attrs = ('max_length', 'min_length')

def constraint_func(**kw: Any) -> Type[Any]:  # noqa: F811
                    return type(type_.__name__, (type_,), kw)

elif issubclass(type_, str) and not issubclass(type_, (EmailStr, AnyUrl)):
                attrs = ('max_length', 'min_length', 'regex')
                if issubclass(type_, StrictStr):

def constraint_func(**kw: Any) -> Type[Any]:
                        return type(type_.__name__, (type_,), kw)

else:
                    constraint_func = constr
            elif issubclass(type_, bytes):
                attrs = ('max_length', 'min_length', 'regex')
                if issubclass(type_, StrictBytes):

def constraint_func(**kw: Any) -> Type[Any]:
                        return type(type_.__name__, (type_,), kw)

else:
                    constraint_func = conbytes
            elif issubclass(type_, numeric_types) and not issubclass(
                type_,
                (
                    ConstrainedInt,
                    ConstrainedFloat,
                    ConstrainedDecimal,
                    ConstrainedList,
                    ConstrainedSet,
                    ConstrainedFrozenSet,
                    bool,
                ),
            ):
                # Is numeric type
                attrs = ('gt', 'lt', 'ge', 'le', 'multiple_of')
                if issubclass(type_, float):
                    attrs += ('allow_inf_nan',)
                if issubclass(type_, Decimal):
                    attrs += ('max_digits', 'decimal_places')
                numeric_type = next(t for t in numeric_types if issubclass(type_, t))  # pragma: no branch
                constraint_func = _map_types_constraint[numeric_type]

if attrs:
            used_constraints.update(set(attrs))
            kwargs = {
                attr_name: attr
                for attr_name, attr in ((attr_name, getattr(field_info, attr_name)) for attr_name in attrs)
                if attr is not None
            }
            if kwargs:
                constraint_func = cast(Callable[..., type], constraint_func)
                return constraint_func(**kwargs)
        return type_

return go(annotation), used_constraints

def normalize_name(name: str) -> str:
    """
    Normalizes the given name. This can be applied to either a model *or* enum.
    """
    return re.sub(r'[^a-zA-Z0-9.\-_]', '_', name)

class SkipField(Exception):
    """
    Utility exception used to exclude fields from schema.
    """

def __init__(self, message: str) -> None:
        self.message = message

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2025-04-04 08:09:14
..	dir	-	root/root	0755	2025-04-04 08:09:14
__pycache__	dir	-	root/root	0755	2025-04-04 08:09:14
__init__.py	text/x-script.python	2.88 KB	root/root	0644	2025-04-04 08:09:14
_hypothesis_plugin.py	text/plain	14.5 KB	root/root	0644	2025-04-04 08:09:14
annotated_types.py	text/x-script.python	3.08 KB	root/root	0644	2025-04-04 08:09:14
class_validators.py	text/x-script.python	14.33 KB	root/root	0644	2025-04-04 08:09:14
color.py	text/plain	16.45 KB	root/root	0644	2025-04-04 08:09:14
config.py	text/x-script.python	6.38 KB	root/root	0644	2025-04-04 08:09:14
dataclasses.py	text/plain	17.75 KB	root/root	0644	2025-04-04 08:09:14
datetime_parse.py	text/plain	7.54 KB	root/root	0644	2025-04-04 08:09:14
decorator.py	text/x-script.python	10.1 KB	root/root	0644	2025-04-04 08:09:14
env_settings.py	text/x-script.python	13.77 KB	root/root	0644	2025-04-04 08:09:14
error_wrappers.py	text/x-script.python	5.07 KB	root/root	0644	2025-04-04 08:09:14
errors.py	text/x-script.python	17.31 KB	root/root	0644	2025-04-04 08:09:14
fields.py	text/x-script.python	49.46 KB	root/root	0644	2025-04-04 08:09:14
generics.py	text/x-script.python	17.45 KB	root/root	0644	2025-04-04 08:09:14
json.py	text/x-script.python	3.31 KB	root/root	0644	2025-04-04 08:09:14
main.py	text/x-script.python	43.5 KB	root/root	0644	2025-04-04 08:09:14
mypy.py	text/x-script.python	37.87 KB	root/root	0644	2025-04-04 08:09:14
networks.py	text/x-script.python	21.61 KB	root/root	0644	2025-04-04 08:09:14
parse.py	text/x-script.python	1.78 KB	root/root	0644	2025-04-04 08:09:14
py.typed	application/x-empty	0 B	root/root	0644	2025-04-04 08:09:14
schema.py	text/x-script.python	46.64 KB	root/root	0644	2025-04-04 08:09:14
tools.py	text/x-script.python	2.81 KB	root/root	0644	2025-04-04 08:09:14
types.py	text/x-script.python	34.62 KB	root/root	0644	2025-04-04 08:09:14
typing.py	text/x-script.python	18.93 KB	root/root	0644	2025-04-04 08:09:14
utils.py	text/x-script.python	25.31 KB	root/root	0644	2025-04-04 08:09:14
validators.py	text/x-script.python	21.48 KB	root/root	0644	2025-04-04 08:09:14
version.py	text/x-script.python	1.01 KB	root/root	0644	2025-04-04 08:09:14

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