#!/bin/sh
set -eu

MI_URL=${LISGLOSIPS_MI_URL:-http://127.0.0.1:8888/mi}
ORIGINAL=${SSH_ORIGINAL_COMMAND:-}

if [ "$#" -eq 0 ] && [ -n "$ORIGINAL" ]; then
  set -- $ORIGINAL
fi

while [ "$#" -gt 0 ]; do
  token=${1:-}
  token=${token#\"}
  token=${token%\"}
  token=${token#\'}
  token=${token%\'}

  case "$token" in
    /usr/local/sbin/lisglosips-call-control|lisglosips-call-control|'')
      shift
      ;;
    dlg_list|dlg_end_dlg)
      set -- "$token" "${2:-}"
      break
      ;;
    *)
      shift
      ;;
  esac
done

method=${1:-}
case "$method" in
  dlg_list)
    payload='{"jsonrpc":"2.0","method":"dlg_list","params":[],"id":1}'
    ;;
  dlg_end_dlg)
    dialog_id=${2:-}
    dialog_id=${dialog_id#\"}
    dialog_id=${dialog_id%\"}
    dialog_id=${dialog_id#\'}
    dialog_id=${dialog_id%\'}
    if ! printf '%s' "$dialog_id" | grep -Eq '^[A-Za-z0-9@._:%+=-]{1,220}$'; then
      printf '{"jsonrpc":"2.0","error":{"code":-32602,"message":"invalid dialog id"},"id":1}\n'
      exit 0
    fi
    payload='{"jsonrpc":"2.0","method":"dlg_end_dlg","params":["'"$dialog_id"'"],"id":1}'
    ;;
  *)
    printf '{"jsonrpc":"2.0","error":{"code":-32601,"message":"method not allowed"},"id":1}\n'
    exit 0
    ;;
esac

exec curl -fsS -X POST "$MI_URL" -H 'Content-Type: application/json' --data-binary "$payload"