adsb-feeder-image-loggy.sh

adsb-feeder-image-loggy.sh

#!/bin/bash
# CC0 - public domain
# We read the file
SANITISED_LOG=$(cat /opt/adsb/adsb-setup.log)

# We set vars to empty
SANITISE_VARS="""FEEDER_LAT FEEDER_LONG ADSBLOL_UUID AF_MICRO_IP ULTRAFEEDER_UUID FEEDER_1090UK_API_KEY
FEEDER_ADSBHUB_STATION_KEY FEEDER_FR24_SHARING_KEY FEEDER_FR24_UAT_SHARING_KEY
FEEDER_PLANEWATCH_API_KEY FEEDER_RADARBOX_SHARING_KEY FEEDER_RV_FEEDER_KEY
_ADSB_STATE_SSH_KEY FEEDER_PIAWARE_FEEDER_ID FEEDER_RADARBOX_SHARING_KEY FEEDER_RADARBOX_SN"""

# We set vars that cannot be empty, have to be stripped
IMPORTANT_VARS="FEEDER_LAT FEEDER_LONG ADSBLOL_UUID AF_MICRO_IP ULTRAFEEDER_UUID"

# For each
for VAR in $SANITISE_VARS; do
  # We get the value of the variable
  SECRET_VALUE=$(grep ^$VAR= /opt/adsb/config/.env | cut -d'=' -f2)
  # SECRET_VALUE is empty, and it is one of FEEDER_LAT FEEDER_LONG ADSBLOL_UUID, bail out
  if [ -z "$SECRET_VALUE" ] && [[ "$IMPORTANT_VARS" == *"$VAR"* ]]; then
    # If we are here, it means that the variable is empty, and it is one of the important ones
    echo "ERROR: $VAR is empty, this is a critical variable, exiting"
    exit 1
  fi
  # if it's empty, we skip
  if [ -z "$SECRET_VALUE" ]; then
    continue
  fi
  SANITISED_LOG=$(echo "$SANITISED_LOG" | sed "s/${SECRET_VALUE}/MY_REAL_${VAR}/g")
  # Otherwise we just strip it out, and put it back into SANITISED_LOG
done

# now get rid of anything that looks like an IP address
SANITISED_LOG=$(sed -r 's/((1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])\.){3}(1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])/<hidden-ip-address>/g' <<< $SANITISED_LOG)
# finally, replace everything that looks like a uuid
SANITISED_LOG=$(sed -r 's/[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/<hidden-uuid>/g' <<< $SANITISED_LOG)

# Then we echo the sanitised log
echo "$SANITISED_LOG"

also added handling empty variables, because if we do sed s//foo/, sed gets rightfully upset