pelican_server.py

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import http.server as srvmod
import logging
import os
import socketserver
import sys


PORT = len(sys.argv) in (2, 3) and int(sys.argv[1]) or 8000
SERVER = len(sys.argv) == 3 and sys.argv[2] or ""
SUFFIXES = ["", ".html", "/index.html"]


class ComplexHTTPRequestHandler(srvmod.SimpleHTTPRequestHandler):
    def do_GET(self):
        # we are trying to detect the file by having a fallback mechanism
        found = False
        for suffix in SUFFIXES:
            if not hasattr(self, "original_path"):
                self.original_path = self.path
            self.path = self.original_path + suffix
            path = self.translate_path(self.path)
            if os.path.exists(path):
                srvmod.SimpleHTTPRequestHandler.do_GET(self)
                logging.info("Found: %s" % self.path)
                found = True
                break
            logging.info(
                "Tried to find file %s, but it doesn't exist. ", self.path
            )
        if not found:
            logging.warning("Unable to find file %s or variations.", self.path)


Handler = ComplexHTTPRequestHandler

socketserver.TCPServer.allow_reuse_address = True
try:
    httpd = socketserver.TCPServer((SERVER, PORT), Handler)
except OSError as e:
    logging.error("Could not listen on port %s, server %s", PORT, SERVER)
    sys.exit(getattr(e, "exitcode", 1))


logging.info("Serving at port %s, server %s", PORT, SERVER)
try:
    httpd.serve_forever()
except KeyboardInterrupt as e:
    logging.info("Shutting down server")
    httpd.socket.close()