#!/bin/bash

MOD_MD_DIR=/var/lib/httpd/md
MD_RENEWED_DIR=/var/lib/httpd/md-renewed

if [[ -f /etc/md-renewed/md-renewed.conf ]]; then
    . /etc/md-renewed/md-renewed.conf
fi

MYDOMAINS=$(curl -s http://127.0.0.1/md-renewed-status | tail -n +1 | jq -r '."managed-domains"[].name' 2>/dev/null)

function set_permissions
{
  local FILE="$1"
  local OWNER="$2"
  local GROUP="$3"
  local MODE="$4"

  if [[ -z $OWNER ]]; then
    chown root $FILE
  else
    chown $OWNER $FILE
  fi

  if [[ -z $GROUP ]]; then
    chgrp root $FILE
  else
    chgrp $GROUP $FILE
  fi

  if [[ -z $MODE ]]; then
    chmod 0600 $FILE
  else
    chmod $MODE $FILE
  fi
}

function run_copy
{
  local DOMAIN="$1"
  local CONFIG="$2"

  CERT_OWNER=""
  CERT_GROUP=""
  CERT_MODE=""
  CERT_FILE=""
  KEY_OWNER=""
  KEY_GROUP=""
  KEY_MODE=""
  KEY_FILE=""

  . $CONFIG

  [[ -z $CERT_FILE ]] && exit 0;

  if [[ -z $KEY_FILE ]]; then
    KEY_FILE="$CERT_FILE"
  fi

  cat ${MOD_MD_DIR}/domains/$DOMAIN/pubcert.pem > $CERT_FILE

  set_permissions "$CERT_FILE" "$CERT_OWNER" "$CERT_GROUP" "$CERT_MODE"

  if [[ $CERT_FILE != $KEY_FILE ]]; then
    cat ${MOD_MD_DIR}/domains/$DOMAIN/privkey.pem > $KEY_FILE
  else
    cat ${MOD_MD_DIR}/domains/$DOMAIN/privkey.pem >> $KEY_FILE
  fi

  set_permissions "$KEY_FILE" "$KEY_OWNER" "$KEY_GROUP" "$KEY_MODE"
}

function run_service
{
  local DOMAIN="$1"
  local CONFIG="$2"
  SERVICE=""
  ACTION=""

  . $CONFIG

  [[ -z $SERVICE ]] && exit 0;

  if [[ -z $ACTION ]]; then
    ACTION="restart"
  fi

  /usr/bin/systemctl $ACTION $SERVICE > /dev/null 2>&1
}

function domain_renew
{
  local DOMAIN="$1"
  for scr in /etc/md-renewed/$DOMAIN/*.cert; do
    run_copy "$1" "$scr"
  done
  for scr in /etc/md-renewed/$DOMAIN/*.service; do
    run_service "$1" "$scr"
  done
  for scr in /etc/md-renewed/$DOMAIN/*.sh; do
    $scr "$1"
  done
}

HTTP_RELOAD=n

if [ -z $MD_RENEWED_HOST_DIR ]; then
  MD_RENEWED_INSTALLING_TARGET=${MD_RENEWED_DIR}/installing
  MD_RENEWED_INSTALLED_TARGET=${MD_RENEWED_DIR}/installed
else
  MD_RENEWED_INSTALLING_TARGET=${MD_RENEWED_DIR}/installing/${MD_RENEWED_HOST_DIR}
  MD_RENEWED_INSTALLED_TARGET=${MD_RENEWED_DIR}/installed/${MD_RENEWED_HOST_DIR}
fi

if [[ ! -d $MD_RENEWED_INSTALLING_TARGET ]]; then
  mkdir -p $MD_RENEWED_INSTALLING_TARGET
  chown apache.apache $MD_RENEWED_INSTALLING_TARGET
fi

if [[ ! -d $MD_RENEWED_INSTALLED_TARGET ]]; then
  mkdir -p $MD_RENEWED_INSTALLED_TARGET
  chown apache.apache $MD_RENEWED_INSTALLED_TARGET
fi

echo "md-renewed-install.service Looking for our domains: ${MYDOMAINS[*]}"
for f in ${MD_RENEWED_INSTALLING_TARGET}/*; do
  if [[ ! -f $f ]]; then
    continue
  fi

  DOMAIN=$(basename $f)
  rm -f $f
  echo "md-renewed-install.service Checking domain $DOMAIN"

  if [[ ! -f $MD_RENEWED_INSTALLED_TARGET/$DOMAIN ]]; then
    echo "md-renewed-install.service Installing domain $DOMAIN"
    touch $MD_RENEWED_INSTALLED_TARGET/$DOMAIN

    if [[ -d /etc/md-renewed/$DOMAIN ]]; then
      domain_renew "$DOMAIN"
    fi

    for i in ${MYDOMAINS[@]}; do
      if [[ $DOMAIN == $i ]]; then
        echo "md-renewed-install.service $DOMAIN is our."
        HTTPD_RELOAD=y
      fi
    done
  fi
done

echo "md-renewed-install.service Looking for our already installed domains: ${MYDOMAINS[*]}"
for f in ${MOD_MD_DIR}/domains/*; do
  if [[ ! -d $f ]]; then
    continue
  fi

  DOMAIN=$(basename $f)
  echo "md-renewed-install.service Checking already installed domain $DOMAIN"

  if [[ ! -f $MD_RENEWED_INSTALLED_TARGET/$DOMAIN ]]; then
    touch $MD_RENEWED_INSTALLED_TARGET/$DOMAIN

    if [[ -d /etc/md-renewed/$DOMAIN ]]; then
      domain_renew "$DOMAIN"
    fi

    for i in ${MYDOMAINS[@]}; do
      if [[ $DOMAIN == $i ]]; then
        echo "md-renewed-install.service Already installed $DOMAIN is our."
        HTTPD_RELOAD=y
      fi
    done
  fi
done

if [[ $HTTPD_RELOAD == y ]]; then
  echo "md-renewed-install.service Restarting apache."
  sleep $[ ( $RANDOM % 60 )  + 1 ]s
  /usr/bin/systemctl reload httpd
fi

exit 0