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authorcyfraeviolae <cyfraeviolae>2024-04-03 03:10:44 -0400
committercyfraeviolae <cyfraeviolae>2024-04-03 03:10:44 -0400
commit6d7ba58f880be618ade07f8ea080fe8c4bf8a896 (patch)
treeb1c931051ffcebd2bd9d61d98d6233ffa289bbce /venv/lib/python3.11/site-packages/litestar/template
parent4f884c9abc32990b4061a1bb6997b4b37e58ea0b (diff)
venv
Diffstat (limited to 'venv/lib/python3.11/site-packages/litestar/template')
-rw-r--r--venv/lib/python3.11/site-packages/litestar/template/__init__.py4
-rw-r--r--venv/lib/python3.11/site-packages/litestar/template/__pycache__/__init__.cpython-311.pycbin0 -> 429 bytes
-rw-r--r--venv/lib/python3.11/site-packages/litestar/template/__pycache__/base.cpython-311.pycbin0 -> 8587 bytes
-rw-r--r--venv/lib/python3.11/site-packages/litestar/template/__pycache__/config.cpython-311.pycbin0 -> 3508 bytes
-rw-r--r--venv/lib/python3.11/site-packages/litestar/template/base.py187
-rw-r--r--venv/lib/python3.11/site-packages/litestar/template/config.py57
6 files changed, 248 insertions, 0 deletions
diff --git a/venv/lib/python3.11/site-packages/litestar/template/__init__.py b/venv/lib/python3.11/site-packages/litestar/template/__init__.py
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index 0000000..5989cea
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+++ b/venv/lib/python3.11/site-packages/litestar/template/__init__.py
@@ -0,0 +1,4 @@
+from litestar.template.base import TemplateEngineProtocol, TemplateProtocol
+from litestar.template.config import TemplateConfig
+
+__all__ = ("TemplateEngineProtocol", "TemplateProtocol", "TemplateConfig")
diff --git a/venv/lib/python3.11/site-packages/litestar/template/__pycache__/__init__.cpython-311.pyc b/venv/lib/python3.11/site-packages/litestar/template/__pycache__/__init__.cpython-311.pyc
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diff --git a/venv/lib/python3.11/site-packages/litestar/template/base.py b/venv/lib/python3.11/site-packages/litestar/template/base.py
new file mode 100644
index 0000000..3474717
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/litestar/template/base.py
@@ -0,0 +1,187 @@
+from __future__ import annotations
+
+from typing import TYPE_CHECKING, Any, Callable, Mapping, Protocol, TypedDict, TypeVar, cast, runtime_checkable
+
+from typing_extensions import Concatenate, ParamSpec, TypeAlias
+
+from litestar.utils.deprecation import warn_deprecation
+from litestar.utils.empty import value_or_default
+from litestar.utils.scope.state import ScopeState
+
+if TYPE_CHECKING:
+ from pathlib import Path
+
+ from litestar.connection import Request
+
+__all__ = (
+ "TemplateCallableType",
+ "TemplateEngineProtocol",
+ "TemplateProtocol",
+ "csrf_token",
+ "url_for",
+ "url_for_static_asset",
+)
+
+
+def _get_request_from_context(context: Mapping[str, Any]) -> Request:
+ """Get the request from the template context.
+
+ Args:
+ context: The template context.
+
+ Returns:
+ The request object.
+ """
+ return cast("Request", context["request"])
+
+
+def url_for(context: Mapping[str, Any], /, route_name: str, **path_parameters: Any) -> str:
+ """Wrap :func:`route_reverse <litestar.app.route_reverse>` to be used in templates.
+
+ Args:
+ context: The template context.
+ route_name: The name of the route handler.
+ **path_parameters: Actual values for path parameters in the route.
+
+ Raises:
+ NoRouteMatchFoundException: If ``route_name`` does not exist, path parameters are missing in **path_parameters
+ or have wrong type.
+
+ Returns:
+ A fully formatted url path.
+ """
+ return _get_request_from_context(context).app.route_reverse(route_name, **path_parameters)
+
+
+def csrf_token(context: Mapping[str, Any], /) -> str:
+ """Set a CSRF token on the template.
+
+ Notes:
+ - to use this function make sure to pass an instance of :ref:`CSRFConfig <litestar.config.csrf_config.CSRFConfig>` to
+ the :class:`Litestar <litestar.app.Litestar>` constructor.
+
+ Args:
+ context: The template context.
+
+ Returns:
+ A CSRF token if the app level ``csrf_config`` is set, otherwise an empty string.
+ """
+ scope = _get_request_from_context(context).scope
+ return value_or_default(ScopeState.from_scope(scope).csrf_token, "")
+
+
+def url_for_static_asset(context: Mapping[str, Any], /, name: str, file_path: str) -> str:
+ """Wrap :meth:`url_for_static_asset <litestar.app.url_for_static_asset>` to be used in templates.
+
+ Args:
+ context: The template context object.
+ name: A static handler unique name.
+ file_path: a string containing path to an asset.
+
+ Raises:
+ NoRouteMatchFoundException: If static files handler with ``name`` does not exist.
+
+ Returns:
+ A url path to the asset.
+ """
+ return _get_request_from_context(context).app.url_for_static_asset(name, file_path)
+
+
+class TemplateProtocol(Protocol):
+ """Protocol Defining a ``Template``.
+
+ Template is a class that has a render method which renders the template into a string.
+ """
+
+ def render(self, *args: Any, **kwargs: Any) -> str:
+ """Return the rendered template as a string.
+
+ Args:
+ *args: Positional arguments passed to the TemplateEngine
+ **kwargs: A string keyed mapping of values passed to the TemplateEngine
+
+ Returns:
+ The rendered template string
+ """
+ raise NotImplementedError
+
+
+P = ParamSpec("P")
+R = TypeVar("R")
+ContextType = TypeVar("ContextType")
+ContextType_co = TypeVar("ContextType_co", covariant=True)
+TemplateType_co = TypeVar("TemplateType_co", bound=TemplateProtocol, covariant=True)
+TemplateCallableType: TypeAlias = Callable[Concatenate[ContextType, P], R]
+
+
+@runtime_checkable
+class TemplateEngineProtocol(Protocol[TemplateType_co, ContextType_co]):
+ """Protocol for template engines."""
+
+ def __init__(self, directory: Path | list[Path] | None, engine_instance: Any | None) -> None:
+ """Initialize the template engine with a directory.
+
+ Args:
+ directory: Direct path or list of directory paths from which to serve templates, if provided the
+ implementation has to create the engine instance.
+ engine_instance: A template engine object, if provided the implementation has to use it.
+ """
+
+ def get_template(self, template_name: str) -> TemplateType_co:
+ """Retrieve a template by matching its name (dotted path) with files in the directory or directories provided.
+
+ Args:
+ template_name: A dotted path
+
+ Returns:
+ Template instance
+
+ Raises:
+ TemplateNotFoundException: if no template is found.
+ """
+ raise NotImplementedError
+
+ def render_string(self, template_string: str, context: Mapping[str, Any]) -> str:
+ """Render a template from a string with the given context.
+
+ Args:
+ template_string: The template string to render.
+ context: A dictionary of variables to pass to the template.
+
+ Returns:
+ The rendered template as a string.
+ """
+ raise NotImplementedError
+
+ def register_template_callable(
+ self, key: str, template_callable: TemplateCallableType[ContextType_co, P, R]
+ ) -> None:
+ """Register a callable on the template engine.
+
+ Args:
+ key: The callable key, i.e. the value to use inside the template to call the callable.
+ template_callable: A callable to register.
+
+ Returns:
+ None
+ """
+
+
+class _TemplateContext(TypedDict):
+ """Dictionary representing a template context."""
+
+ request: Request[Any, Any, Any]
+ csrf_input: str
+
+
+def __getattr__(name: str) -> Any:
+ if name == "TemplateContext":
+ warn_deprecation(
+ "2.3.0",
+ "TemplateContext",
+ "import",
+ removal_in="3.0.0",
+ alternative="Mapping",
+ )
+ return _TemplateContext
+ raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
diff --git a/venv/lib/python3.11/site-packages/litestar/template/config.py b/venv/lib/python3.11/site-packages/litestar/template/config.py
new file mode 100644
index 0000000..d2aa87c
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/litestar/template/config.py
@@ -0,0 +1,57 @@
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+from functools import cached_property
+from inspect import isclass
+from typing import TYPE_CHECKING, Callable, Generic, TypeVar, cast
+
+from litestar.exceptions import ImproperlyConfiguredException
+from litestar.template import TemplateEngineProtocol
+
+__all__ = ("TemplateConfig",)
+
+if TYPE_CHECKING:
+ from litestar.types import PathType
+
+EngineType = TypeVar("EngineType", bound=TemplateEngineProtocol)
+
+
+@dataclass
+class TemplateConfig(Generic[EngineType]):
+ """Configuration for Templating.
+
+ To enable templating, pass an instance of this class to the :class:`Litestar <litestar.app.Litestar>` constructor using the
+ 'template_config' key.
+ """
+
+ engine: type[EngineType] | EngineType | None = field(default=None)
+ """A template engine adhering to the :class:`TemplateEngineProtocol <litestar.template.base.TemplateEngineProtocol>`."""
+ directory: PathType | list[PathType] | None = field(default=None)
+ """A directory or list of directories from which to serve templates."""
+ engine_callback: Callable[[EngineType], None] | None = field(default=None)
+ """A callback function that allows modifying the instantiated templating protocol."""
+ instance: EngineType | None = field(default=None)
+ """An instance of the templating protocol."""
+
+ def __post_init__(self) -> None:
+ """Ensure that directory is set if engine is a class."""
+ if isclass(self.engine) and not self.directory:
+ raise ImproperlyConfiguredException("directory is a required kwarg when passing a template engine class")
+ """Ensure that directory is not set if instance is."""
+ if self.instance is not None and self.directory is not None:
+ raise ImproperlyConfiguredException("directory cannot be set if instance is")
+
+ def to_engine(self) -> EngineType:
+ """Instantiate the template engine."""
+ template_engine = cast(
+ "EngineType",
+ self.engine(directory=self.directory, engine_instance=None) if isclass(self.engine) else self.engine,
+ )
+ if callable(self.engine_callback):
+ self.engine_callback(template_engine)
+ return template_engine
+
+ @cached_property
+ def engine_instance(self) -> EngineType:
+ """Return the template engine instance."""
+ return self.to_engine() if self.instance is None else self.instance