Pause/Resume downloads for Synology Download Station

dl_station.sh

#!/bin/bash

NAS_URI=*.*.*.*:5000
LOGIN=user
PASSWORD=mypassword
ACTION=$1

if [[ "$ACTION" != "resume" && "$ACTION" != "pause" ]]; then
  echo 'No action specified'
  echo 'Usage: ./dl_station.sh pause/resume'
  exit 1
fi

echo 'Authenticating...'
AUTH_RES=$(curl -s "http://${NAS_URI}/webapi/auth.cgi?api=SYNO.API.Auth&version=2&method=login&account=${LOGIN}&passwd=${PASSWORD}&session=DownloadStation&format=sid")
echo $AUTH_RES; echo

SUCCESS=$(echo $AUTH_RES | jq -r '.success')
if [[ "$SUCCESS" != "true" ]]; then
  echo 'Error during authentication'
  exit 1
fi

echo 'Getting auth token...'
SID=$(echo $AUTH_RES | jq -r '.data.sid')
echo $SID; echo

echo 'Retrieving Download station data...'
DL_RES=$(curl -s "http://${NAS_URI}/webapi/DownloadStation/task.cgi?api=SYNO.DownloadStation.Task&version=1&method=list" -H "Cookie: id=${SID}")
echo $DL_RES; echo

SUCCESS=$(echo $DL_RES | jq -r '.success')
if [[ "$SUCCESS" != "true" ]]; then
  echo 'Error during data retrieval'
  exit 1
fi

echo 'Getting download list...'
DL_LIST=$(echo $DL_RES | jq -r '.data.tasks | map(.id) | join(",")')
echo $DL_LIST; echo

if [[ "$DL_LIST" = "" ]]; then
  echo 'Empty download list'
  exit 0
fi

echo "Download ${ACTION} requested..."
DL_RES=$(curl -s "http://${NAS_URI}/webapi/DownloadStation/task.cgi?api=SYNO.DownloadStation.Task&version=1&method=${ACTION}&id=${DL_LIST}" -H "Cookie: id=${SID}")
echo $DL_RES; echo

SUCCESS=$(echo $DL_RES | jq -r '.success')
if [[ "$SUCCESS" = "true" ]]; then
  echo 'Action succeeded'
else
  echo "Action failed"
  exit 1
fi

Use it like this:

./dl_station.sh pause
# or
./dl_station.sh resume