#!/usr/bin/env bash
# BASTORD, a gemini server in bash
# by Case Duckworth <acdw@acdw.net>
# License: ISC

# CONFIGURATION ################################################################
# bastord has a few ways to set variables:
#
# - set environment variables
# - use a config file (default: /etc/bastord.conf.sh)
# - pass them in as arguments, Make-style
#
# Unless I can figure out how to tell bash to source a file and /not/ clobber
# other environment variables, I can't just have the first two forms of setting
# variables.  Basically, if you have a config file, use the make-style arguments
# (bastord var=value).

: "${BASTORD_CONFIG:=/etc/bastord.conf.sh}"
[[ -r "$BASTORD_CONFIG" ]] && source "$BASTORD_CONFIG"

: "${BASTORD_PORT:=1965}"
: "${BASTORD_ROOT:=/var/gemini}"

# CONSTANTS ####################################################################
#
### Status codes
# These come straight from the spec, with underscores instead of spaces
SC_INPUT=10
SC_SENSITIVE_INPUT=11
SC_SUCCESS=20
SC_TEMPORARY_REDIRECT=30
SC_PERMANENT_REDIRECT=31
SC_TEMPORARY_FAILURE=40
SC_SERVER_UNAVAILABLE=41
SC_CGI_ERROR=42
SC_PROXY_ERROR=43
SC_SLOW_DOWN=44
SC_PERMANENT_ERROR=50
SC_NOT_FOUND=51
SC_GONE=52
SC_PROXY_REQUEST_REFUSED=53
SC_BAD_REQUEST=59
SC_CLIENT_CERTIFICATE_REQUIRED=60
SC_CERTIFICATE_NOT_AUTHORIZED=61
SC_CERTIFICATE_NOT_VALID=62

# FUNCTIONS ####################################################################

reply() { # reply STATUS_CODE MESSAGE
    local sc="$1"; shift
    printf '%d %s\r\n' "$sc" "$*"
}

handle_request() { # handle_request REQUEST
    # as per the spec, a Gemini request is a URL followed by \r\n, of a maximum
    # length of 1024 bytes.
    local req="$1"

    # badly-formed request
    
}