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Diffstat (limited to 'venv/lib/python3.8/site-packages/flask/wrappers.py')
| -rw-r--r-- | venv/lib/python3.8/site-packages/flask/wrappers.py | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/venv/lib/python3.8/site-packages/flask/wrappers.py b/venv/lib/python3.8/site-packages/flask/wrappers.py new file mode 100644 index 0000000..c1eca80 --- /dev/null +++ b/venv/lib/python3.8/site-packages/flask/wrappers.py @@ -0,0 +1,174 @@ +from __future__ import annotations + +import typing as t + +from werkzeug.exceptions import BadRequest +from werkzeug.exceptions import HTTPException +from werkzeug.wrappers import Request as RequestBase +from werkzeug.wrappers import Response as ResponseBase + +from . import json +from .globals import current_app +from .helpers import _split_blueprint_path + +if t.TYPE_CHECKING: # pragma: no cover + from werkzeug.routing import Rule + + +class Request(RequestBase): + """The request object used by default in Flask. Remembers the + matched endpoint and view arguments. + + It is what ends up as :class:`~flask.request`. If you want to replace + the request object used you can subclass this and set + :attr:`~flask.Flask.request_class` to your subclass. + + The request object is a :class:`~werkzeug.wrappers.Request` subclass and + provides all of the attributes Werkzeug defines plus a few Flask + specific ones. + """ + + json_module: t.Any = json + + #: The internal URL rule that matched the request. This can be + #: useful to inspect which methods are allowed for the URL from + #: a before/after handler (``request.url_rule.methods``) etc. + #: Though if the request's method was invalid for the URL rule, + #: the valid list is available in ``routing_exception.valid_methods`` + #: instead (an attribute of the Werkzeug exception + #: :exc:`~werkzeug.exceptions.MethodNotAllowed`) + #: because the request was never internally bound. + #: + #: .. versionadded:: 0.6 + url_rule: Rule | None = None + + #: A dict of view arguments that matched the request. If an exception + #: happened when matching, this will be ``None``. + view_args: dict[str, t.Any] | None = None + + #: If matching the URL failed, this is the exception that will be + #: raised / was raised as part of the request handling. This is + #: usually a :exc:`~werkzeug.exceptions.NotFound` exception or + #: something similar. + routing_exception: HTTPException | None = None + + @property + def max_content_length(self) -> int | None: # type: ignore[override] + """Read-only view of the ``MAX_CONTENT_LENGTH`` config key.""" + if current_app: + return current_app.config["MAX_CONTENT_LENGTH"] # type: ignore[no-any-return] + else: + return None + + @property + def endpoint(self) -> str | None: + """The endpoint that matched the request URL. + + This will be ``None`` if matching failed or has not been + performed yet. + + This in combination with :attr:`view_args` can be used to + reconstruct the same URL or a modified URL. + """ + if self.url_rule is not None: + return self.url_rule.endpoint + + return None + + @property + def blueprint(self) -> str | None: + """The registered name of the current blueprint. + + This will be ``None`` if the endpoint is not part of a + blueprint, or if URL matching failed or has not been performed + yet. + + This does not necessarily match the name the blueprint was + created with. It may have been nested, or registered with a + different name. + """ + endpoint = self.endpoint + + if endpoint is not None and "." in endpoint: + return endpoint.rpartition(".")[0] + + return None + + @property + def blueprints(self) -> list[str]: + """The registered names of the current blueprint upwards through + parent blueprints. + + This will be an empty list if there is no current blueprint, or + if URL matching failed. + + .. versionadded:: 2.0.1 + """ + name = self.blueprint + + if name is None: + return [] + + return _split_blueprint_path(name) + + def _load_form_data(self) -> None: + super()._load_form_data() + + # In debug mode we're replacing the files multidict with an ad-hoc + # subclass that raises a different error for key errors. + if ( + current_app + and current_app.debug + and self.mimetype != "multipart/form-data" + and not self.files + ): + from .debughelpers import attach_enctype_error_multidict + + attach_enctype_error_multidict(self) + + def on_json_loading_failed(self, e: ValueError | None) -> t.Any: + try: + return super().on_json_loading_failed(e) + except BadRequest as e: + if current_app and current_app.debug: + raise + + raise BadRequest() from e + + +class Response(ResponseBase): + """The response object that is used by default in Flask. Works like the + response object from Werkzeug but is set to have an HTML mimetype by + default. Quite often you don't have to create this object yourself because + :meth:`~flask.Flask.make_response` will take care of that for you. + + If you want to replace the response object used you can subclass this and + set :attr:`~flask.Flask.response_class` to your subclass. + + .. versionchanged:: 1.0 + JSON support is added to the response, like the request. This is useful + when testing to get the test client response data as JSON. + + .. versionchanged:: 1.0 + + Added :attr:`max_cookie_size`. + """ + + default_mimetype: str | None = "text/html" + + json_module = json + + autocorrect_location_header = False + + @property + def max_cookie_size(self) -> int: # type: ignore + """Read-only view of the :data:`MAX_COOKIE_SIZE` config key. + + See :attr:`~werkzeug.wrappers.Response.max_cookie_size` in + Werkzeug's docs. + """ + if current_app: + return current_app.config["MAX_COOKIE_SIZE"] # type: ignore[no-any-return] + + # return Werkzeug's default when not in an app context + return super().max_cookie_size |