Technitium DNS ad blocking manager via API

gistfile1.txt

#!/bin/bash

###########################################################
# Purpose: Simple script to enable and disable ad blocking
# for technitium DNS server via API calls
#
# Usage: provide either 'enable' to enable ad blocking
# or 'disable DURATION' to disable
#
# Author: kernelkaribou@github
###########################################################

declare -A technitiumDNSHosts=( 
    # Enter [HOST]=[token] one each line, include http:// or https:// and any ports if needed.
    # Example: ["https://example.com:53443"]=[abc123]
    ["https://dns01.example.com"]="myL0ngTok3n" 
    ["https://dns02.example.com"]="my0th3rL0ngTok3n" 
  )

# k=Skip TLS verify, useful if not through reverse proxy with cert and using https
# s=Silent progress of curl command
curl_options="ks"
duration=5 # default duration for disabling ad blocking

for host in "${!technitiumDNSHosts[@]}"
do

  token=${technitiumDNSHosts[$host]}

  case $1 in
      "enable")
        api_action="set"
        api_param="&enableBlocking=true"
        message="Enabling Blocking for $host"
        ;;
      "disable")
        api_action="temporaryDisableBlocking"
        if [[ ! -z $2 ]]; then duration=$2; fi;
        api_param="&minutes=$duration"
        message="Disable Blocking for $duration minutes on $host"
        ;;
    *)
        echo "invalid action, options: enable and disable (with duration)"
        exit 1;
        ;;
  esac

  curl_command="curl -$curl_options $host/api/settings/$api_action?token=$token$api_param"

  result=`$curl_command`

  status=${result#*\"status\":\"}
  status=$(echo $status | cut -d '"' -f 1)

  # set request status
  message+="\nRequest Result: "$status
  
  # Getting relevant status depending on call
  if [[ $1 == "disable" ]]; then
  {
      blocking_date=${result#*temporaryDisableBlockingTill\":\"}
      blocking_date=$(echo $blocking_date | cut -d '.' -f 1)
      message+="\nBlocking Until: "$blocking_date  
  }
  else 
  {
    blocking_state=${result#*enableBlocking\":}
    blocking_state=$(echo $blocking_state | cut -d ',' -f 1)
    message+="\nBlocking Ads: "$blocking_state  
  }
  fi

  echo -e $message"\n"

done