# Make a login in Piwigo named "cron" and set a strong password, chage the text REDACTED (one instance on Line 9) in this script to the password
#
# Nightly CRON job (run as apps): 1 0 * * * /mnt/data/apps/piwigo/scripts/piwigo-thumb-generate.sh

set -e

cd /mnt/data/apps/piwigo/scripts

wget --keep-session-cookies --save-cookies cookies.txt --delete-after --post-data="username=cron&password=REDACTED" "http://photos.aiskon.net/ws.php?format=json&method=pwg.session.login"

wget --load-cookies cookies.txt -nv -O missing.json "http://photos.aiskon.net/ws.php?format=json&method=pwg.getMissingDerivatives"

while [ `wc -c missing.json | awk '{print $1}'` -gt 50 ]
do
  sed -e 's/[\\\"]//g' \
  -e 's/{stat:ok,result:{next_page:[0-9]*,urls:\[//' \
  -e 's/{stat:ok,result:{urls:\[//' \
  -e 's/\]}}/\n/' \
  -e 's/,/\n/g' \
  -e 's/\&b=[0-9]*//g' missing.json | \
  while read line ; do
    wget -nv -O /dev/null $line
  done
  wget --load-cookies cookies.txt -nv -O missing.json "http://photos.aiskon.net/ws.php?format=json&method=pwg.getMissingDerivatives"
done

rm cookies.txt
rm missing.json

TrueNAS% ./piwigo-thumb-generate.sh 
--2024-11-07 20:13:41--  http://photos.aiskon.net/ws.php?format=json&method=pwg.session.login
Resolving photos.aiskon.net (photos.aiskon.net)... 10.0.0.240, fe80::7229:c312:f1c4:dc6a
Connecting to photos.aiskon.net (photos.aiskon.net)|10.0.0.240|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/plain]
ws.php?format=json&method=pwg.session.login.tmp: Bad file descriptor

Cannot write to ‘ws.php?format=json&method=pwg.session.login.tmp’ (Bad file descriptor).
Cannot open cookies file ‘cookies.txt’: Permission denied
TrueNAS%