#    Copyright 2020 Romain de Laage
#
#    This file is part of tkGemini.
#
#    tkGemini is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    any later version.
#
#    tkGemini is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with tkGemini.  If not, see <https://www.gnu.org/licenses/>.

import socket
import ssl
import urllib.parse

# See https://tildegit.org/solderpunk/gemini-demo-1/src/branch/master/gemini-demo.py
# See also https://gemini.circumlunar.space/docs/specification.html for more details

class Request():
    def __init__(self, url):
        self.url = url
        parsed_url = urllib.parse.urlparse(self.url)
        if ":" in parsed_url.netloc:
            self.hostname, self.port = parsed_url.netloc.split(":")
        else:
            self.hostname = parsed_url.netloc
            self.port = 1965

    def makeRequest(self):
        try:
            # Create socket
            s = socket.create_connection((self.hostname, self.port))
            context = ssl.SSLContext()
            context.check_hostname = False
            context.verify_mode = ssl.CERT_NONE
            s = context.wrap_socket(s, server_hostname = self.hostname)

            # Send request
            s.sendall((self.url + '\r\n').encode("UTF-8"))

            # Receive the answer
            fp = s.makefile("rb")

            # Read header
            self.header = fp.readline().decode("UTF-8").strip()
            self.status = self.header[0:2]
            self.meta = self.header[3:]

            # Handle errors
            if self.status[0] == "4" or self.status[0] == "5":
                # There is an error and no content so we display error code and error message
                self.content = "Error " + self.status + " : " + self.meta
            else:
                # Read the content
                self.content = fp.read().decode("UTF-8")

            # Return the status code
            return self.status
    
        # Something went wrong during the connecgtion to the server
        except Exception as err:
            self.meta = err
            self.content = str(err)
            return "err"