first commit

venv/lib/python3.11/site-packages/whitenoise/__init__.py

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+from __future__ import annotations
+
+from whitenoise.base import WhiteNoise
+
+__all__ = ["WhiteNoise"]

venv/lib/python3.11/site-packages/whitenoise/base.py

@@ -0,0 +1,265 @@
+from __future__ import annotations
+
+import os
+import re
+import warnings
+from posixpath import normpath
+from typing import Callable
+from wsgiref.headers import Headers
+from wsgiref.util import FileWrapper
+
+from whitenoise.media_types import MediaTypes
+from whitenoise.responders import IsDirectoryError
+from whitenoise.responders import MissingFileError
+from whitenoise.responders import Redirect
+from whitenoise.responders import StaticFile
+from whitenoise.string_utils import decode_path_info
+from whitenoise.string_utils import ensure_leading_trailing_slash
+
+
+class WhiteNoise:
+    # Ten years is what nginx sets a max age if you use 'expires max;'
+    # so we'll follow its lead
+    FOREVER = 10 * 365 * 24 * 60 * 60
+
+    def __init__(
+        self,
+        application,
+        root=None,
+        prefix=None,
+        *,
+        # Re-check the filesystem on every request so that any changes are
+        # automatically picked up. NOTE: For use in development only, not supported
+        # in production
+        autorefresh: bool = False,
+        max_age: int | None = 60,  # seconds
+        # Set 'Access-Control-Allow-Origin: *' header on all files.
+        # As these are all public static files this is safe (See
+        # https://www.w3.org/TR/cors/#security) and ensures that things (e.g
+        # webfonts in Firefox) still work as expected when your static files are
+        # served from a CDN, rather than your primary domain.
+        allow_all_origins: bool = True,
+        charset: str = "utf-8",
+        mimetypes: dict[str, str] | None = None,
+        add_headers_function: Callable[[Headers, str, str], None] | None = None,
+        index_file: str | bool | None = None,
+        immutable_file_test: Callable | str | None = None,
+    ):
+        self.autorefresh = autorefresh
+        self.max_age = max_age
+        self.allow_all_origins = allow_all_origins
+        self.charset = charset
+        self.add_headers_function = add_headers_function
+        if index_file is True:
+            self.index_file: str | None = "index.html"
+        elif isinstance(index_file, str):
+            self.index_file = index_file
+        else:
+            self.index_file = None
+
+        if immutable_file_test is not None:
+            if not callable(immutable_file_test):
+                regex = re.compile(immutable_file_test)
+                self.immutable_file_test = lambda path, url: bool(regex.search(url))
+            else:
+                self.immutable_file_test = immutable_file_test
+
+        self.media_types = MediaTypes(extra_types=mimetypes)
+        self.application = application
+        self.files = {}
+        self.directories = []
+        if root is not None:
+            self.add_files(root, prefix)
+
+    def __call__(self, environ, start_response):
+        path = decode_path_info(environ.get("PATH_INFO", ""))
+        if self.autorefresh:
+            static_file = self.find_file(path)
+        else:
+            static_file = self.files.get(path)
+        if static_file is None:
+            return self.application(environ, start_response)
+        else:
+            return self.serve(static_file, environ, start_response)
+
+    @staticmethod
+    def serve(static_file, environ, start_response):
+        response = static_file.get_response(environ["REQUEST_METHOD"], environ)
+        status_line = f"{response.status} {response.status.phrase}"
+        start_response(status_line, list(response.headers))
+        if response.file is not None:
+            file_wrapper = environ.get("wsgi.file_wrapper", FileWrapper)
+            return file_wrapper(response.file)
+        else:
+            return []
+
+    def add_files(self, root, prefix=None):
+        root = os.path.abspath(root)
+        root = root.rstrip(os.path.sep) + os.path.sep
+        prefix = ensure_leading_trailing_slash(prefix)
+        if self.autorefresh:
+            # Later calls to `add_files` overwrite earlier ones, hence we need
+            # to store the list of directories in reverse order so later ones
+            # match first when they're checked in "autorefresh" mode
+            self.directories.insert(0, (root, prefix))
+        else:
+            if os.path.isdir(root):
+                self.update_files_dictionary(root, prefix)
+            else:
+                warnings.warn(f"No directory at: {root}", stacklevel=3)
+
+    def update_files_dictionary(self, root, prefix):
+        # Build a mapping from paths to the results of `os.stat` calls
+        # so we only have to touch the filesystem once
+        stat_cache = dict(scantree(root))
+        for path in stat_cache.keys():
+            relative_path = path[len(root) :]
+            relative_url = relative_path.replace("\\", "/")
+            url = prefix + relative_url
+            self.add_file_to_dictionary(url, path, stat_cache=stat_cache)
+
+    def add_file_to_dictionary(self, url, path, stat_cache=None):
+        if self.is_compressed_variant(path, stat_cache=stat_cache):
+            return
+        if self.index_file is not None and url.endswith("/" + self.index_file):
+            index_url = url[: -len(self.index_file)]
+            index_no_slash = index_url.rstrip("/")
+            self.files[url] = self.redirect(url, index_url)
+            self.files[index_no_slash] = self.redirect(index_no_slash, index_url)
+            url = index_url
+        static_file = self.get_static_file(path, url, stat_cache=stat_cache)
+        self.files[url] = static_file
+
+    def find_file(self, url):
+        # Optimization: bail early if the URL can never match a file
+        if self.index_file is None and url.endswith("/"):
+            return
+        if not self.url_is_canonical(url):
+            return
+        for path in self.candidate_paths_for_url(url):
+            try:
+                return self.find_file_at_path(path, url)
+            except MissingFileError:
+                pass
+
+    def candidate_paths_for_url(self, url):
+        for root, prefix in self.directories:
+            if url.startswith(prefix):
+                path = os.path.join(root, url[len(prefix) :])
+                if os.path.commonprefix((root, path)) == root:
+                    yield path
+
+    def find_file_at_path(self, path, url):
+        if self.is_compressed_variant(path):
+            raise MissingFileError(path)
+
+        if self.index_file is not None:
+            if url.endswith("/"):
+                path = os.path.join(path, self.index_file)
+                return self.get_static_file(path, url)
+            elif url.endswith("/" + self.index_file):
+                if os.path.isfile(path):
+                    return self.redirect(url, url[: -len(self.index_file)])
+            else:
+                try:
+                    return self.get_static_file(path, url)
+                except IsDirectoryError:
+                    if os.path.isfile(os.path.join(path, self.index_file)):
+                        return self.redirect(url, url + "/")
+            raise MissingFileError(path)
+
+        return self.get_static_file(path, url)
+
+    @staticmethod
+    def url_is_canonical(url):
+        """
+        Check that the URL path is in canonical format i.e. has normalised
+        slashes and no path traversal elements
+        """
+        if "\\" in url:
+            return False
+        normalised = normpath(url)
+        if url.endswith("/") and url != "/":
+            normalised += "/"
+        return normalised == url
+
+    @staticmethod
+    def is_compressed_variant(path, stat_cache=None):
+        if path[-3:] in (".gz", ".br"):
+            uncompressed_path = path[:-3]
+            if stat_cache is None:
+                return os.path.isfile(uncompressed_path)
+            else:
+                return uncompressed_path in stat_cache
+        return False
+
+    def get_static_file(self, path, url, stat_cache=None):
+        # Optimization: bail early if file does not exist
+        if stat_cache is None and not os.path.exists(path):
+            raise MissingFileError(path)
+        headers = Headers([])
+        self.add_mime_headers(headers, path, url)
+        self.add_cache_headers(headers, path, url)
+        if self.allow_all_origins:
+            headers["Access-Control-Allow-Origin"] = "*"
+        if self.add_headers_function is not None:
+            self.add_headers_function(headers, path, url)
+        return StaticFile(
+            path,
+            headers.items(),
+            stat_cache=stat_cache,
+            encodings={"gzip": path + ".gz", "br": path + ".br"},
+        )
+
+    def add_mime_headers(self, headers, path, url):
+        media_type = self.media_types.get_type(path)
+        if media_type.startswith("text/"):
+            params = {"charset": str(self.charset)}
+        else:
+            params = {}
+        headers.add_header("Content-Type", str(media_type), **params)
+
+    def add_cache_headers(self, headers, path, url):
+        if self.immutable_file_test(path, url):
+            headers["Cache-Control"] = "max-age={}, public, immutable".format(
+                self.FOREVER
+            )
+        elif self.max_age is not None:
+            headers["Cache-Control"] = f"max-age={self.max_age}, public"
+
+    def immutable_file_test(self, path, url):
+        """
+        This should be implemented by sub-classes (see e.g. WhiteNoiseMiddleware)
+        or by setting the `immutable_file_test` config option
+        """
+        return False
+
+    def redirect(self, from_url, to_url):
+        """
+        Return a relative 302 redirect
+
+        We use relative redirects as we don't know the absolute URL the app is
+        being hosted under
+        """
+        if to_url == from_url + "/":
+            relative_url = from_url.split("/")[-1] + "/"
+        elif from_url == to_url + self.index_file:
+            relative_url = "./"
+        else:
+            raise ValueError(f"Cannot handle redirect: {from_url} > {to_url}")
+        if self.max_age is not None:
+            headers = {"Cache-Control": f"max-age={self.max_age}, public"}
+        else:
+            headers = {}
+        return Redirect(relative_url, headers=headers)
+
+
+def scantree(root):
+    """
+    Recurse the given directory yielding (pathname, os.stat(pathname)) pairs
+    """
+    for entry in os.scandir(root):
+        if entry.is_dir():
+            yield from scantree(entry.path)
+        else:
+            yield entry.path, entry.stat()

venv/lib/python3.11/site-packages/whitenoise/compress.py

@@ -0,0 +1,189 @@
+from __future__ import annotations
+
+import argparse
+import gzip
+import os
+import re
+from io import BytesIO
+
+try:
+    import brotli
+
+    brotli_installed = True
+except ImportError:  # pragma: no cover
+    brotli_installed = False
+
+
+class Compressor:
+    # Extensions that it's not worth trying to compress
+    SKIP_COMPRESS_EXTENSIONS = (
+        # Images
+        "jpg",
+        "jpeg",
+        "png",
+        "gif",
+        "webp",
+        # Compressed files
+        "zip",
+        "gz",
+        "tgz",
+        "bz2",
+        "tbz",
+        "xz",
+        "br",
+        # Flash
+        "swf",
+        "flv",
+        # Fonts
+        "woff",
+        "woff2",
+        # Video
+        "3gp",
+        "3gpp",
+        "asf",
+        "avi",
+        "m4v",
+        "mov",
+        "mp4",
+        "mpeg",
+        "mpg",
+        "webm",
+        "wmv",
+    )
+
+    def __init__(
+        self, extensions=None, use_gzip=True, use_brotli=True, log=print, quiet=False
+    ):
+        if extensions is None:
+            extensions = self.SKIP_COMPRESS_EXTENSIONS
+        self.extension_re = self.get_extension_re(extensions)
+        self.use_gzip = use_gzip
+        self.use_brotli = use_brotli and brotli_installed
+        if not quiet:
+            self.log = log
+
+    @staticmethod
+    def get_extension_re(extensions):
+        if not extensions:
+            return re.compile("^$")
+        else:
+            return re.compile(
+                r"\.({})$".format("|".join(map(re.escape, extensions))), re.IGNORECASE
+            )
+
+    def should_compress(self, filename):
+        return not self.extension_re.search(filename)
+
+    def log(self, message):
+        pass
+
+    def compress(self, path):
+        with open(path, "rb") as f:
+            stat_result = os.fstat(f.fileno())
+            data = f.read()
+        size = len(data)
+        if self.use_brotli:
+            compressed = self.compress_brotli(data)
+            if self.is_compressed_effectively("Brotli", path, size, compressed):
+                yield self.write_data(path, compressed, ".br", stat_result)
+            else:
+                # If Brotli compression wasn't effective gzip won't be either
+                return
+        if self.use_gzip:
+            compressed = self.compress_gzip(data)
+            if self.is_compressed_effectively("Gzip", path, size, compressed):
+                yield self.write_data(path, compressed, ".gz", stat_result)
+
+    @staticmethod
+    def compress_gzip(data):
+        output = BytesIO()
+        # Explicitly set mtime to 0 so gzip content is fully determined
+        # by file content (0 = "no timestamp" according to gzip spec)
+        with gzip.GzipFile(
+            filename="", mode="wb", fileobj=output, compresslevel=9, mtime=0
+        ) as gz_file:
+            gz_file.write(data)
+        return output.getvalue()
+
+    @staticmethod
+    def compress_brotli(data):
+        return brotli.compress(data)
+
+    def is_compressed_effectively(self, encoding_name, path, orig_size, data):
+        compressed_size = len(data)
+        if orig_size == 0:
+            is_effective = False
+        else:
+            ratio = compressed_size / orig_size
+            is_effective = ratio <= 0.95
+        if is_effective:
+            self.log(
+                "{} compressed {} ({}K -> {}K)".format(
+                    encoding_name, path, orig_size // 1024, compressed_size // 1024
+                )
+            )
+        else:
+            self.log(f"Skipping {path} ({encoding_name} compression not effective)")
+        return is_effective
+
+    def write_data(self, path, data, suffix, stat_result):
+        filename = path + suffix
+        with open(filename, "wb") as f:
+            f.write(data)
+        os.utime(filename, (stat_result.st_atime, stat_result.st_mtime))
+        return filename
+
+
+def main(argv=None):
+    parser = argparse.ArgumentParser(
+        description="Search for all files inside <root> *not* matching "
+        "<extensions> and produce compressed versions with "
+        "'.gz' and '.br' suffixes (as long as this results in a "
+        "smaller file)"
+    )
+    parser.add_argument(
+        "-q", "--quiet", help="Don't produce log output", action="store_true"
+    )
+    parser.add_argument(
+        "--no-gzip",
+        help="Don't produce gzip '.gz' files",
+        action="store_false",
+        dest="use_gzip",
+    )
+    parser.add_argument(
+        "--no-brotli",
+        help="Don't produce brotli '.br' files",
+        action="store_false",
+        dest="use_brotli",
+    )
+    parser.add_argument("root", help="Path root from which to search for files")
+    default_exclude = ", ".join(Compressor.SKIP_COMPRESS_EXTENSIONS)
+    parser.add_argument(
+        "extensions",
+        nargs="*",
+        help=(
+            "File extensions to exclude from compression "
+            + f"(default: {default_exclude})"
+        ),
+        default=Compressor.SKIP_COMPRESS_EXTENSIONS,
+    )
+    args = parser.parse_args(argv)
+
+    compressor = Compressor(
+        extensions=args.extensions,
+        use_gzip=args.use_gzip,
+        use_brotli=args.use_brotli,
+        quiet=args.quiet,
+    )
+    for dirpath, _dirs, files in os.walk(args.root):
+        for filename in files:
+            if compressor.should_compress(filename):
+                path = os.path.join(dirpath, filename)
+                for _compressed in compressor.compress(path):
+                    pass
+
+    return 0
+
+
+if __name__ == "__main__":  # pragma: no cover
+    raise SystemExit(main())

venv/lib/python3.11/site-packages/whitenoise/media_types.py

@@ -0,0 +1,137 @@
+from __future__ import annotations
+
+import os
+
+
+class MediaTypes:
+    __slots__ = ("types_map",)
+
+    def __init__(self, *, extra_types: dict[str, str] | None = None) -> None:
+        self.types_map = default_types()
+        if extra_types is not None:
+            self.types_map.update(extra_types)
+
+    def get_type(self, path: str) -> str:
+        name = os.path.basename(path).lower()
+        media_type = self.types_map.get(name)
+        if media_type is not None:
+            return media_type
+        extension = os.path.splitext(name)[1]
+        return self.types_map.get(extension, "application/octet-stream")
+
+
+def default_types() -> dict[str, str]:
+    """
+    We use our own set of default media types rather than the system-supplied
+    ones. This ensures consistent media type behaviour across varied
+    environments.  The defaults are based on those shipped with nginx, with
+    some custom additions.
+
+    (Auto-generated by scripts/generate_default_media_types.py)
+    """
+    return {
+        ".3gp": "video/3gpp",
+        ".3gpp": "video/3gpp",
+        ".7z": "application/x-7z-compressed",
+        ".ai": "application/postscript",
+        ".asf": "video/x-ms-asf",
+        ".asx": "video/x-ms-asf",
+        ".atom": "application/atom+xml",
+        ".avi": "video/x-msvideo",
+        ".avif": "image/avif",
+        ".bmp": "image/x-ms-bmp",
+        ".cco": "application/x-cocoa",
+        ".crt": "application/x-x509-ca-cert",
+        ".css": "text/css",
+        ".der": "application/x-x509-ca-cert",
+        ".doc": "application/msword",
+        ".docx": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+        ".ear": "application/java-archive",
+        ".eot": "application/vnd.ms-fontobject",
+        ".eps": "application/postscript",
+        ".flv": "video/x-flv",
+        ".gif": "image/gif",
+        ".hqx": "application/mac-binhex40",
+        ".htc": "text/x-component",
+        ".htm": "text/html",
+        ".html": "text/html",
+        ".ico": "image/x-icon",
+        ".jad": "text/vnd.sun.j2me.app-descriptor",
+        ".jar": "application/java-archive",
+        ".jardiff": "application/x-java-archive-diff",
+        ".jng": "image/x-jng",
+        ".jnlp": "application/x-java-jnlp-file",
+        ".jpeg": "image/jpeg",
+        ".jpg": "image/jpeg",
+        ".js": "text/javascript",
+        ".json": "application/json",
+        ".kar": "audio/midi",
+        ".kml": "application/vnd.google-earth.kml+xml",
+        ".kmz": "application/vnd.google-earth.kmz",
+        ".m3u8": "application/vnd.apple.mpegurl",
+        ".m4a": "audio/x-m4a",
+        ".m4v": "video/x-m4v",
+        ".md": "text/markdown",
+        ".mid": "audio/midi",
+        ".midi": "audio/midi",
+        ".mjs": "text/javascript",
+        ".mml": "text/mathml",
+        ".mng": "video/x-mng",
+        ".mov": "video/quicktime",
+        ".mp3": "audio/mpeg",
+        ".mp4": "video/mp4",
+        ".mpeg": "video/mpeg",
+        ".mpg": "video/mpeg",
+        ".odg": "application/vnd.oasis.opendocument.graphics",
+        ".odp": "application/vnd.oasis.opendocument.presentation",
+        ".ods": "application/vnd.oasis.opendocument.spreadsheet",
+        ".odt": "application/vnd.oasis.opendocument.text",
+        ".ogg": "audio/ogg",
+        ".pdb": "application/x-pilot",
+        ".pdf": "application/pdf",
+        ".pem": "application/x-x509-ca-cert",
+        ".pl": "application/x-perl",
+        ".pm": "application/x-perl",
+        ".png": "image/png",
+        ".ppt": "application/vnd.ms-powerpoint",
+        ".pptx": "application/vnd.openxmlformats-officedocument.presentationml.presentation",
+        ".prc": "application/x-pilot",
+        ".ps": "application/postscript",
+        ".ra": "audio/x-realaudio",
+        ".rar": "application/x-rar-compressed",
+        ".rpm": "application/x-redhat-package-manager",
+        ".rss": "application/rss+xml",
+        ".rtf": "application/rtf",
+        ".run": "application/x-makeself",
+        ".sea": "application/x-sea",
+        ".shtml": "text/html",
+        ".sit": "application/x-stuffit",
+        ".svg": "image/svg+xml",
+        ".svgz": "image/svg+xml",
+        ".swf": "application/x-shockwave-flash",
+        ".tcl": "application/x-tcl",
+        ".tif": "image/tiff",
+        ".tiff": "image/tiff",
+        ".tk": "application/x-tcl",
+        ".ts": "video/mp2t",
+        ".txt": "text/plain",
+        ".war": "application/java-archive",
+        ".wasm": "application/wasm",
+        ".wbmp": "image/vnd.wap.wbmp",
+        ".webm": "video/webm",
+        ".webp": "image/webp",
+        ".wml": "text/vnd.wap.wml",
+        ".wmlc": "application/vnd.wap.wmlc",
+        ".wmv": "video/x-ms-wmv",
+        ".woff": "application/font-woff",
+        ".woff2": "font/woff2",
+        ".xhtml": "application/xhtml+xml",
+        ".xls": "application/vnd.ms-excel",
+        ".xlsx": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+        ".xml": "text/xml",
+        ".xpi": "application/x-xpinstall",
+        ".xspf": "application/xspf+xml",
+        ".zip": "application/zip",
+        "apple-app-site-association": "application/pkc7-mime",
+        "crossdomain.xml": "text/x-cross-domain-policy",
+    }

venv/lib/python3.11/site-packages/whitenoise/middleware.py

@@ -0,0 +1,202 @@
+from __future__ import annotations
+
+import os
+from posixpath import basename
+from urllib.parse import urlparse
+
+from django.conf import settings
+from django.contrib.staticfiles import finders
+from django.contrib.staticfiles.storage import staticfiles_storage
+from django.http import FileResponse
+from django.urls import get_script_prefix
+
+from whitenoise.base import WhiteNoise
+from whitenoise.string_utils import ensure_leading_trailing_slash
+
+__all__ = ["WhiteNoiseMiddleware"]
+
+
+class WhiteNoiseFileResponse(FileResponse):
+    """
+    Wrap Django's FileResponse to prevent setting any default headers. For the
+    most part these just duplicate work already done by WhiteNoise but in some
+    cases (e.g. the content-disposition header introduced in Django 3.0) they
+    are actively harmful.
+    """
+
+    def set_headers(self, *args, **kwargs):
+        pass
+
+
+class WhiteNoiseMiddleware(WhiteNoise):
+    """
+    Wrap WhiteNoise to allow it to function as Django middleware, rather
+    than WSGI middleware.
+    """
+
+    def __init__(self, get_response=None, settings=settings):
+        self.get_response = get_response
+
+        try:
+            autorefresh: bool = settings.WHITENOISE_AUTOREFRESH
+        except AttributeError:
+            autorefresh = settings.DEBUG
+        try:
+            max_age = settings.WHITENOISE_MAX_AGE
+        except AttributeError:
+            if settings.DEBUG:
+                max_age = 0
+            else:
+                max_age = 60
+        try:
+            allow_all_origins = settings.WHITENOISE_ALLOW_ALL_ORIGINS
+        except AttributeError:
+            allow_all_origins = True
+        try:
+            charset = settings.WHITENOISE_CHARSET
+        except AttributeError:
+            charset = "utf-8"
+        try:
+            mimetypes = settings.WHITENOISE_MIMETYPES
+        except AttributeError:
+            mimetypes = None
+        try:
+            add_headers_function = settings.WHITENOISE_ADD_HEADERS_FUNCTION
+        except AttributeError:
+            add_headers_function = None
+        try:
+            index_file = settings.WHITENOISE_INDEX_FILE
+        except AttributeError:
+            index_file = None
+        try:
+            immutable_file_test = settings.WHITENOISE_IMMUTABLE_FILE_TEST
+        except AttributeError:
+            immutable_file_test = None
+
+        super().__init__(
+            application=None,
+            autorefresh=autorefresh,
+            max_age=max_age,
+            allow_all_origins=allow_all_origins,
+            charset=charset,
+            mimetypes=mimetypes,
+            add_headers_function=add_headers_function,
+            index_file=index_file,
+            immutable_file_test=immutable_file_test,
+        )
+
+        try:
+            self.use_finders = settings.WHITENOISE_USE_FINDERS
+        except AttributeError:
+            self.use_finders = settings.DEBUG
+
+        try:
+            self.static_prefix = settings.WHITENOISE_STATIC_PREFIX
+        except AttributeError:
+            self.static_prefix = urlparse(settings.STATIC_URL or "").path
+            script_prefix = get_script_prefix().rstrip("/")
+            if script_prefix:
+                if self.static_prefix.startswith(script_prefix):
+                    self.static_prefix = self.static_prefix[len(script_prefix) :]
+        self.static_prefix = ensure_leading_trailing_slash(self.static_prefix)
+
+        self.static_root = settings.STATIC_ROOT
+        if self.static_root:
+            self.add_files(self.static_root, prefix=self.static_prefix)
+
+        try:
+            root = settings.WHITENOISE_ROOT
+        except AttributeError:
+            root = None
+        if root:
+            self.add_files(root)
+
+        if self.use_finders and not self.autorefresh:
+            self.add_files_from_finders()
+
+    def __call__(self, request):
+        if self.autorefresh:
+            static_file = self.find_file(request.path_info)
+        else:
+            static_file = self.files.get(request.path_info)
+        if static_file is not None:
+            return self.serve(static_file, request)
+        return self.get_response(request)
+
+    @staticmethod
+    def serve(static_file, request):
+        response = static_file.get_response(request.method, request.META)
+        status = int(response.status)
+        http_response = WhiteNoiseFileResponse(response.file or (), status=status)
+        # Remove default content-type
+        del http_response["content-type"]
+        for key, value in response.headers:
+            http_response[key] = value
+        return http_response
+
+    def add_files_from_finders(self):
+        files = {}
+        for finder in finders.get_finders():
+            for path, storage in finder.list(None):
+                prefix = (getattr(storage, "prefix", None) or "").strip("/")
+                url = "".join(
+                    (
+                        self.static_prefix,
+                        prefix,
+                        "/" if prefix else "",
+                        path.replace("\\", "/"),
+                    )
+                )
+                # Use setdefault as only first matching file should be used
+                files.setdefault(url, storage.path(path))
+        stat_cache = {path: os.stat(path) for path in files.values()}
+        for url, path in files.items():
+            self.add_file_to_dictionary(url, path, stat_cache=stat_cache)
+
+    def candidate_paths_for_url(self, url):
+        if self.use_finders and url.startswith(self.static_prefix):
+            path = finders.find(url[len(self.static_prefix) :])
+            if path:
+                yield path
+        paths = super().candidate_paths_for_url(url)
+        for path in paths:
+            yield path
+
+    def immutable_file_test(self, path, url):
+        """
+        Determine whether given URL represents an immutable file (i.e. a
+        file with a hash of its contents as part of its name) which can
+        therefore be cached forever
+        """
+        if not url.startswith(self.static_prefix):
+            return False
+        name = url[len(self.static_prefix) :]
+        name_without_hash = self.get_name_without_hash(name)
+        if name == name_without_hash:
+            return False
+        static_url = self.get_static_url(name_without_hash)
+        # If the static_url function maps the name without hash
+        # back to the original name, then we know we've got a
+        # versioned filename
+        if static_url and basename(static_url) == basename(url):
+            return True
+        return False
+
+    def get_name_without_hash(self, filename):
+        """
+        Removes the version hash from a filename e.g, transforms
+        'css/application.f3ea4bcc2.css' into 'css/application.css'
+
+        Note: this is specific to the naming scheme used by Django's
+        CachedStaticFilesStorage. You may have to override this if
+        you are using a different static files versioning system
+        """
+        name_with_hash, ext = os.path.splitext(filename)
+        name = os.path.splitext(name_with_hash)[0]
+        return name + ext
+
+    def get_static_url(self, name):
+        try:
+            return staticfiles_storage.url(name)
+        except ValueError:
+            return None

venv/lib/python3.11/site-packages/whitenoise/responders.py

@@ -0,0 +1,287 @@
+from __future__ import annotations
+
+import errno
+import os
+import re
+import stat
+from email.utils import formatdate
+from email.utils import parsedate
+from http import HTTPStatus
+from io import BufferedIOBase
+from time import mktime
+from urllib.parse import quote
+from wsgiref.headers import Headers
+
+
+class Response:
+    __slots__ = ("status", "headers", "file")
+
+    def __init__(self, status, headers, file):
+        self.status = status
+        self.headers = headers
+        self.file = file
+
+
+NOT_ALLOWED_RESPONSE = Response(
+    status=HTTPStatus.METHOD_NOT_ALLOWED,
+    headers=[("Allow", "GET, HEAD")],
+    file=None,
+)
+
+# Headers which should be returned with a 304 Not Modified response as
+# specified here: https://tools.ietf.org/html/rfc7232#section-4.1
+NOT_MODIFIED_HEADERS = (
+    "Cache-Control",
+    "Content-Location",
+    "Date",
+    "ETag",
+    "Expires",
+    "Vary",
+)
+
+
+class SlicedFile(BufferedIOBase):
+    """
+    A file like wrapper to handle seeking to the start byte of a range request
+    and to return no further output once the end byte of a range request has
+    been reached.
+    """
+
+    def __init__(self, fileobj, start, end):
+        fileobj.seek(start)
+        self.fileobj = fileobj
+        self.remaining = end - start + 1
+
+    def read(self, size=-1):
+        if self.remaining <= 0:
+            return b""
+        if size < 0:
+            size = self.remaining
+        else:
+            size = min(size, self.remaining)
+        data = self.fileobj.read(size)
+        self.remaining -= len(data)
+        return data
+
+    def close(self):
+        self.fileobj.close()
+
+
+class StaticFile:
+    def __init__(self, path, headers, encodings=None, stat_cache=None):
+        files = self.get_file_stats(path, encodings, stat_cache)
+        headers = self.get_headers(headers, files)
+        self.last_modified = parsedate(headers["Last-Modified"])
+        self.etag = headers["ETag"]
+        self.not_modified_response = self.get_not_modified_response(headers)
+        self.alternatives = self.get_alternatives(headers, files)
+
+    def get_response(self, method, request_headers):
+        if method not in ("GET", "HEAD"):
+            return NOT_ALLOWED_RESPONSE
+        if self.is_not_modified(request_headers):
+            return self.not_modified_response
+        path, headers = self.get_path_and_headers(request_headers)
+        if method != "HEAD":
+            file_handle = open(path, "rb")
+        else:
+            file_handle = None
+        range_header = request_headers.get("HTTP_RANGE")
+        if range_header:
+            try:
+                return self.get_range_response(range_header, headers, file_handle)
+            except ValueError:
+                # If we can't interpret the Range request for any reason then
+                # just ignore it and return the standard response (this
+                # behaviour is allowed by the spec)
+                pass
+        return Response(HTTPStatus.OK, headers, file_handle)
+
+    def get_range_response(self, range_header, base_headers, file_handle):
+        headers = []
+        for item in base_headers:
+            if item[0] == "Content-Length":
+                size = int(item[1])
+            else:
+                headers.append(item)
+        start, end = self.get_byte_range(range_header, size)
+        if start >= end:
+            return self.get_range_not_satisfiable_response(file_handle, size)
+        if file_handle is not None:
+            file_handle = SlicedFile(file_handle, start, end)
+        headers.append(("Content-Range", f"bytes {start}-{end}/{size}"))
+        headers.append(("Content-Length", str(end - start + 1)))
+        return Response(HTTPStatus.PARTIAL_CONTENT, headers, file_handle)
+
+    def get_byte_range(self, range_header, size):
+        start, end = self.parse_byte_range(range_header)
+        if start < 0:
+            start = max(start + size, 0)
+        if end is None:
+            end = size - 1
+        else:
+            end = min(end, size - 1)
+        return start, end
+
+    @staticmethod
+    def parse_byte_range(range_header):
+        units, _, range_spec = range_header.strip().partition("=")
+        if units != "bytes":
+            raise ValueError()
+        # Only handle a single range spec. Multiple ranges will trigger a
+        # ValueError below which will result in the Range header being ignored
+        start_str, sep, end_str = range_spec.strip().partition("-")
+        if not sep:
+            raise ValueError()
+        if not start_str:
+            start = -int(end_str)
+            end = None
+        else:
+            start = int(start_str)
+            end = int(end_str) if end_str else None
+        return start, end
+
+    @staticmethod
+    def get_range_not_satisfiable_response(file_handle, size):
+        if file_handle is not None:
+            file_handle.close()
+        return Response(
+            HTTPStatus.REQUESTED_RANGE_NOT_SATISFIABLE,
+            [("Content-Range", f"bytes */{size}")],
+            None,
+        )
+
+    @staticmethod
+    def get_file_stats(path, encodings, stat_cache):
+        # Primary file has an encoding of None
+        files = {None: FileEntry(path, stat_cache)}
+        if encodings:
+            for encoding, alt_path in encodings.items():
+                try:
+                    files[encoding] = FileEntry(alt_path, stat_cache)
+                except MissingFileError:
+                    continue
+        return files
+
+    def get_headers(self, headers_list, files):
+        headers = Headers(headers_list)
+        main_file = files[None]
+        if len(files) > 1:
+            headers["Vary"] = "Accept-Encoding"
+        if "Last-Modified" not in headers:
+            mtime = main_file.mtime
+            # Not all filesystems report mtimes, and sometimes they report an
+            # mtime of 0 which we know is incorrect
+            if mtime:
+                headers["Last-Modified"] = formatdate(mtime, usegmt=True)
+        if "ETag" not in headers:
+            last_modified = parsedate(headers["Last-Modified"])
+            if last_modified:
+                timestamp = int(mktime(last_modified))
+                headers["ETag"] = f'"{timestamp:x}-{main_file.size:x}"'
+        return headers
+
+    @staticmethod
+    def get_not_modified_response(headers):
+        not_modified_headers = []
+        for key in NOT_MODIFIED_HEADERS:
+            if key in headers:
+                not_modified_headers.append((key, headers[key]))
+        return Response(
+            status=HTTPStatus.NOT_MODIFIED, headers=not_modified_headers, file=None
+        )
+
+    @staticmethod
+    def get_alternatives(base_headers, files):
+        # Sort by size so that the smallest compressed alternative matches first
+        alternatives = []
+        files_by_size = sorted(files.items(), key=lambda i: i[1].size)
+        for encoding, file_entry in files_by_size:
+            headers = Headers(base_headers.items())
+            headers["Content-Length"] = str(file_entry.size)
+            if encoding:
+                headers["Content-Encoding"] = encoding
+                encoding_re = re.compile(r"\b%s\b" % encoding)
+            else:
+                encoding_re = re.compile("")
+            alternatives.append((encoding_re, file_entry.path, headers.items()))
+        return alternatives
+
+    def is_not_modified(self, request_headers):
+        previous_etag = request_headers.get("HTTP_IF_NONE_MATCH")
+        if previous_etag is not None:
+            return previous_etag == self.etag
+        if self.last_modified is None:
+            return False
+        try:
+            last_requested = request_headers["HTTP_IF_MODIFIED_SINCE"]
+        except KeyError:
+            return False
+        last_requested_ts = parsedate(last_requested)
+        if last_requested_ts is not None:
+            return last_requested_ts >= self.last_modified
+        return False
+
+    def get_path_and_headers(self, request_headers):
+        accept_encoding = request_headers.get("HTTP_ACCEPT_ENCODING", "")
+        if accept_encoding == "*":
+            accept_encoding = ""
+        # These are sorted by size so first match is the best
+        for encoding_re, path, headers in self.alternatives:
+            if encoding_re.search(accept_encoding):
+                return path, headers
+
+
+class Redirect:
+    def __init__(self, location, headers=None):
+        headers = list(headers.items()) if headers else []
+        headers.append(("Location", quote(location.encode("utf8"))))
+        self.response = Response(HTTPStatus.FOUND, headers, None)
+
+    def get_response(self, method, request_headers):
+        return self.response
+
+
+class NotARegularFileError(Exception):
+    pass
+
+
+class MissingFileError(NotARegularFileError):
+    pass
+
+
+class IsDirectoryError(MissingFileError):
+    pass
+
+
+class FileEntry:
+    __slots__ = ("path", "size", "mtime")
+
+    def __init__(self, path, stat_cache=None):
+        self.path = path
+        stat_function = os.stat if stat_cache is None else stat_cache.__getitem__
+        stat = self.stat_regular_file(path, stat_function)
+        self.size = stat.st_size
+        self.mtime = stat.st_mtime
+
+    @staticmethod
+    def stat_regular_file(path, stat_function):
+        """
+        Wrap `stat_function` to raise appropriate errors if `path` is not a
+        regular file
+        """
+        try:
+            stat_result = stat_function(path)
+        except KeyError:
+            raise MissingFileError(path)
+        except OSError as e:
+            if e.errno in (errno.ENOENT, errno.ENAMETOOLONG):
+                raise MissingFileError(path)
+            else:
+                raise
+        if not stat.S_ISREG(stat_result.st_mode):
+            if stat.S_ISDIR(stat_result.st_mode):
+                raise IsDirectoryError(f"Path is a directory: {path}")
+            else:
+                raise NotARegularFileError(f"Not a regular file: {path}")
+        return stat_result

venv/lib/python3.11/site-packages/whitenoise/runserver_nostatic/management/commands/runserver.py

@@ -0,0 +1,54 @@
+"""
+Subclass the existing 'runserver' command and change the default options
+to disable static file serving, allowing WhiteNoise to handle static files.
+
+There is some unpleasant hackery here because we don't know which command class
+to subclass until runtime as it depends on which INSTALLED_APPS we have, so we
+have to determine this dynamically.
+"""
+
+from __future__ import annotations
+
+from importlib import import_module
+
+from django.apps import apps
+
+
+def get_next_runserver_command():
+    """
+    Return the next highest priority "runserver" command class
+    """
+    for app_name in get_lower_priority_apps():
+        module_path = "%s.management.commands.runserver" % app_name
+        try:
+            return import_module(module_path).Command
+        except (ImportError, AttributeError):
+            pass
+
+
+def get_lower_priority_apps():
+    """
+    Yield all app module names below the current app in the INSTALLED_APPS list
+    """
+    self_app_name = ".".join(__name__.split(".")[:-3])
+    reached_self = False
+    for app_config in apps.get_app_configs():
+        if app_config.name == self_app_name:
+            reached_self = True
+        elif reached_self:
+            yield app_config.name
+    yield "django.core"
+
+
+RunserverCommand = get_next_runserver_command()
+
+
+class Command(RunserverCommand):
+    def add_arguments(self, parser):
+        super().add_arguments(parser)
+        if parser.get_default("use_static_handler") is True:
+            parser.set_defaults(use_static_handler=False)
+            parser.description += (
+                "\n(Wrapped by 'whitenoise.runserver_nostatic' to always"
+                " enable '--nostatic')"
+            )

venv/lib/python3.11/site-packages/whitenoise/storage.py

@@ -0,0 +1,178 @@
+from __future__ import annotations
+
+import errno
+import os
+import re
+import textwrap
+from typing import Any
+from typing import Iterator
+from typing import Tuple
+from typing import Union
+
+from django.conf import settings
+from django.contrib.staticfiles.storage import ManifestStaticFilesStorage
+from django.contrib.staticfiles.storage import StaticFilesStorage
+
+from whitenoise.compress import Compressor
+
+_PostProcessT = Iterator[Union[Tuple[str, str, bool], Tuple[str, None, RuntimeError]]]
+
+
+class CompressedStaticFilesStorage(StaticFilesStorage):
+    """
+    StaticFilesStorage subclass that compresses output files.
+    """
+
+    def post_process(
+        self, paths: dict[str, Any], dry_run: bool = False, **options: Any
+    ) -> _PostProcessT:
+        if dry_run:
+            return
+
+        extensions = getattr(settings, "WHITENOISE_SKIP_COMPRESS_EXTENSIONS", None)
+        compressor = self.create_compressor(extensions=extensions, quiet=True)
+
+        for path in paths:
+            if compressor.should_compress(path):
+                full_path = self.path(path)
+                prefix_len = len(full_path) - len(path)
+                for compressed_path in compressor.compress(full_path):
+                    compressed_name = compressed_path[prefix_len:]
+                    yield path, compressed_name, True
+
+    def create_compressor(self, **kwargs: Any) -> Compressor:
+        return Compressor(**kwargs)
+
+
+class MissingFileError(ValueError):
+    pass
+
+
+class CompressedManifestStaticFilesStorage(ManifestStaticFilesStorage):
+    """
+    Extends ManifestStaticFilesStorage instance to create compressed versions
+    of its output files and, optionally, to delete the non-hashed files (i.e.
+    those without the hash in their name)
+    """
+
+    _new_files = None
+
+    def __init__(self, *args, **kwargs):
+        manifest_strict = getattr(settings, "WHITENOISE_MANIFEST_STRICT", None)
+        if manifest_strict is not None:
+            self.manifest_strict = manifest_strict
+        super().__init__(*args, **kwargs)
+
+    def post_process(self, *args, **kwargs):
+        files = super().post_process(*args, **kwargs)
+
+        if not kwargs.get("dry_run"):
+            files = self.post_process_with_compression(files)
+
+        # Make exception messages helpful
+        for name, hashed_name, processed in files:
+            if isinstance(processed, Exception):
+                processed = self.make_helpful_exception(processed, name)
+            yield name, hashed_name, processed
+
+    def post_process_with_compression(self, files):
+        # Files may get hashed multiple times, we want to keep track of all the
+        # intermediate files generated during the process and which of these
+        # are the final names used for each file. As not every intermediate
+        # file is yielded we have to hook in to the `hashed_name` method to
+        # keep track of them all.
+        hashed_names = {}
+        new_files = set()
+        self.start_tracking_new_files(new_files)
+        for name, hashed_name, processed in files:
+            if hashed_name and not isinstance(processed, Exception):
+                hashed_names[self.clean_name(name)] = hashed_name
+            yield name, hashed_name, processed
+        self.stop_tracking_new_files()
+        original_files = set(hashed_names.keys())
+        hashed_files = set(hashed_names.values())
+        if self.keep_only_hashed_files:
+            files_to_delete = (original_files | new_files) - hashed_files
+            files_to_compress = hashed_files
+        else:
+            files_to_delete = set()
+            files_to_compress = original_files | hashed_files
+        self.delete_files(files_to_delete)
+        for name, compressed_name in self.compress_files(files_to_compress):
+            yield name, compressed_name, True
+
+    def hashed_name(self, *args, **kwargs):
+        name = super().hashed_name(*args, **kwargs)
+        if self._new_files is not None:
+            self._new_files.add(self.clean_name(name))
+        return name
+
+    def start_tracking_new_files(self, new_files):
+        self._new_files = new_files
+
+    def stop_tracking_new_files(self):
+        self._new_files = None
+
+    @property
+    def keep_only_hashed_files(self):
+        return getattr(settings, "WHITENOISE_KEEP_ONLY_HASHED_FILES", False)
+
+    def delete_files(self, files_to_delete):
+        for name in files_to_delete:
+            try:
+                os.unlink(self.path(name))
+            except OSError as e:
+                if e.errno != errno.ENOENT:
+                    raise
+
+    def create_compressor(self, **kwargs):
+        return Compressor(**kwargs)
+
+    def compress_files(self, names):
+        extensions = getattr(settings, "WHITENOISE_SKIP_COMPRESS_EXTENSIONS", None)
+        compressor = self.create_compressor(extensions=extensions, quiet=True)
+        for name in names:
+            if compressor.should_compress(name):
+                path = self.path(name)
+                prefix_len = len(path) - len(name)
+                for compressed_path in compressor.compress(path):
+                    compressed_name = compressed_path[prefix_len:]
+                    yield name, compressed_name
+
+    def make_helpful_exception(self, exception, name):
+        """
+        If a CSS file contains references to images, fonts etc that can't be found
+        then Django's `post_process` blows up with a not particularly helpful
+        ValueError that leads people to think WhiteNoise is broken.
+
+        Here we attempt to intercept such errors and reformat them to be more
+        helpful in revealing the source of the problem.
+        """
+        if isinstance(exception, ValueError):
+            message = exception.args[0] if len(exception.args) else ""
+            # Stringly typed exceptions. Yay!
+            match = self._error_msg_re.search(message)
+            if match:
+                extension = os.path.splitext(name)[1].lstrip(".").upper()
+                message = self._error_msg.format(
+                    orig_message=message,
+                    filename=name,
+                    missing=match.group(1),
+                    ext=extension,
+                )
+                exception = MissingFileError(message)
+        return exception
+
+    _error_msg_re = re.compile(r"^The file '(.+)' could not be found")
+
+    _error_msg = textwrap.dedent(
+        """\
+        {orig_message}
+
+        The {ext} file '{filename}' references a file which could not be found:
+          {missing}
+
+        Please check the URL references in this {ext} file, particularly any
+        relative paths which might be pointing to the wrong location.
+        """
+    )

venv/lib/python3.11/site-packages/whitenoise/string_utils.py

@@ -0,0 +1,13 @@
+from __future__ import annotations
+
+
+# Follow Django in treating URLs as UTF-8 encoded (which requires undoing the
+# implicit ISO-8859-1 decoding applied in Python 3). Strictly speaking, URLs
+# should only be ASCII anyway, but UTF-8 can be found in the wild.
+def decode_path_info(path_info):
+    return path_info.encode("iso-8859-1", "replace").decode("utf-8", "replace")
+
+
+def ensure_leading_trailing_slash(path):
+    path = (path or "").strip("/")
+    return f"/{path}/" if path else "/"