125 lines
4.2 KiB
Python
125 lines
4.2 KiB
Python
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# This file is part of Radicale Server - Calendar Server
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# Copyright (C) 2017 Unrud <unrud@openaliasbox.org>
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#
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# This library is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Radicale. If not, see <http://www.gnu.org/licenses/>.
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import os
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import posixpath
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import time
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from http import client
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from importlib import import_module
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import pkg_resources
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from . import storage
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NOT_FOUND = (
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client.NOT_FOUND, (("Content-Type", "text/plain"),),
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"The requested resource could not be found.")
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MIMETYPES = {
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".css": "text/css",
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".eot": "application/vnd.ms-fontobject",
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".gif": "image/gif",
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".html": "text/html",
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".js": "application/javascript",
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".manifest": "text/cache-manifest",
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".png": "image/png",
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".svg": "image/svg+xml",
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".ttf": "application/font-sfnt",
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".txt": "text/plain",
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".woff": "application/font-woff",
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".woff2": "font/woff2",
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".xml": "text/xml"}
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FALLBACK_MIMETYPE = "application/octet-stream"
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INTERNAL_TYPES = ("None", "none", "internal")
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def load(configuration, logger):
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"""Load the web module chosen in configuration."""
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web_type = configuration.get("web", "type")
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if web_type in ("None", "none"): # DEPRECATED: use "none"
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web_class = NoneWeb
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elif web_type == "internal":
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web_class = Web
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else:
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try:
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web_class = import_module(web_type).Web
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except Exception as e:
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raise RuntimeError("Failed to load web module %r: %s" %
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(web_type, e)) from e
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logger.info("Web type is %r", web_type)
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return web_class(configuration, logger)
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class BaseWeb:
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def __init__(self, configuration, logger):
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self.configuration = configuration
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self.logger = logger
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def get(self, environ, base_prefix, path, user):
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"""GET request.
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``base_prefix`` is sanitized and never ends with "/".
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``path`` is sanitized and always starts with "/.web"
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``user`` is empty for anonymous users.
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"""
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raise NotImplementedError
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class NoneWeb(BaseWeb):
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def get(self, environ, base_prefix, path, user):
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if path != "/.web":
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return NOT_FOUND
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return client.OK, {"Content-Type": "text/plain"}, "Radicale works!"
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class Web(BaseWeb):
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def __init__(self, configuration, logger):
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super().__init__(configuration, logger)
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self.folder = pkg_resources.resource_filename(__name__, "web")
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def get(self, environ, base_prefix, path, user):
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try:
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filesystem_path = storage.path_to_filesystem(
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self.folder, path[len("/.web"):])
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except ValueError as e:
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self.logger.debug("Web content with unsafe path %r requested: %s",
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path, e, exc_info=True)
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return NOT_FOUND
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if os.path.isdir(filesystem_path) and not path.endswith("/"):
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location = posixpath.basename(path) + "/"
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return (client.FOUND,
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{"Location": location, "Content-Type": "text/plain"},
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"Redirected to %s" % location)
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if os.path.isdir(filesystem_path):
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filesystem_path = os.path.join(filesystem_path, "index.html")
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if not os.path.isfile(filesystem_path):
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return NOT_FOUND
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content_type = MIMETYPES.get(
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os.path.splitext(filesystem_path)[1].lower(), FALLBACK_MIMETYPE)
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with open(filesystem_path, "rb") as f:
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answer = f.read()
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last_modified = time.strftime(
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"%a, %d %b %Y %H:%M:%S GMT",
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time.gmtime(os.fstat(f.fileno()).st_mtime))
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headers = {
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"Content-Type": content_type,
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"Last-Modified": last_modified}
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return client.OK, headers, answer
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