os/hosts/pie/paperless.nix

160 lines
4.4 KiB
Nix

{
flake,
lib,
config,
pkgs,
...
}:
with lib; let
psCfg = config.pub-solar;
xdg = config.home-manager.users."${psCfg.user.name}".xdg;
dataDir = "/var/lib/paperless";
backupDir = "/var/lib/PaperlessBackup";
consumptionDir = "/var/lib/scandir";
scan2paperless = with pkgs; writeShellScriptBin "scan2paperless" ''
DEVICE=$1
NUM_PAGES=$2
NAME=$3
if [ -z "''${DEVICE}" ] || [ -z "''${NUM_PAGES}" ] || [ -z "''${NAME}" ]; then
echo "Usage: scan2paperless <device> <num_pages> <name>"
exit 1
fi
tmpDir=$(${coreutils}/bin/mktemp -d)
files=()
for i in $(seq 1 $NUM_PAGES); do
fileName=$(${openssl}/bin/openssl rand -hex 12)
file="$tmpDir/$fileName.jpg"
echo "Start scanning page $i/$NUM_PAGES";
${sane-backends}/bin/scanimage -d $DEVICE --format=jpeg --resolution 300 --progress -o $file
echo "Finished scanning page $i";
files+=($file)
done
pdf="${consumptionDir}/$NAME.pdf"
${python3Packages.img2pdf}/bin/img2pdf --output $pdf ''${files[@]}
echo "PDF written to $pdf"
'';
in {
age.secrets."paperless.env" = {
file = "${flake.self}/secrets/paperless.env.age";
mode = "400";
owner = "paperless";
};
#################################
# Paperless service and proxy
#################################
security.acme.certs = {
"paperless.b12f.io" = {};
};
services.nginx.virtualHosts = {
"paperless.b12f.io" = {
forceSSL = true;
useACMEHost = "paperless.b12f.io";
extraConfig = "include /etc/nginx/conf-available/authelia-location.conf;";
locations."/".proxyPass = "http://127.0.0.1:${builtins.toString config.services.paperless.port}";
locations."/".extraConfig = ''
include /etc/nginx/conf-available/proxy.conf;
include /etc/nginx/conf-available/authelia-authrequest.conf;
'';
};
};
services.paperless = {
enable = true;
consumptionDir = consumptionDir;
dataDir = dataDir;
address = "127.0.0.1";
settings = {
PAPERLESS_OCR_LANGUAGE = "nld+deu";
PAPERLESS_URL = "https://paperless.b12f.io";
PAPERLESS_DISABLE_REGULAR_LOGIN = "True";
PAPERLESS_ENABLE_HTTP_REMOTE_USER = "True";
PAPERLESS_EMAIL_TASK_CRON = "*/2 * * * *";
};
};
systemd.services.paperless-web.serviceConfig.EnvironmentFile = [ config.age.secrets."paperless.env".path ];
#################################
# Scanning
#################################
hardware.sane = {
enable = true;
extraBackends = [pkgs.hplipWithPlugin];
};
users.users."${psCfg.user.name}".packages = with pkgs; [
scan2paperless
sane-backends
];
home-manager.users."${psCfg.user.name}" = {
home.sessionVariables = {
SCANNER_OUTPUT_DIR = consumptionDir;
};
systemd.user.sessionVariables = {
SCANNER_OUTPUT_DIR = consumptionDir;
};
};
#################################
# hosting.de invoice fetch
#################################
age.secrets."hosting-de-invoice-sync-api-key" = {
file = "${flake.self}/secrets/hosting-de-invoice-sync-api-key.age";
mode = "400";
owner = "paperless";
};
services.cron = {
enable = true;
systemCronJobs = [
"30 1 * * * paperless ${pkgs.fetch-hostingde-invoices}/bin/fetch-hostingde-invoices '${config.age.secrets."hosting-de-invoice-sync-api-key".path}' '${consumptionDir}'"
];
};
#################################
# Backups
#################################
systemd.tmpfiles.rules = [
"d '${dataDir}' 0700 paperless users - -"
"d '${backupDir}' 0700 paperless users - -"
"d '${consumptionDir}' 0700 paperless users - -"
"d /tmp/paperless 0700 paperless users - -"
];
age.secrets."rclone-pubsolar.conf" = {
file = "${flake.self}/secrets/rclone-pubsolar.conf.age";
mode = "400";
};
age.secrets."restic-password" = {
file = "${flake.self}/secrets/restic-password.age";
mode = "400";
};
services.restic.backups = {
paperless = {
paths = [ backupDir ];
initialize = true;
passwordFile = config.age.secrets."restic-password".path;
# See https://www.hosting.de/blog/verschluesselte-backups-mit-rclone-und-restic-in-nextcloud/
repository = "rclone:cloud.pub.solar:/backups/Paperless";
backupPrepareCommand = "${dataDir}/paperless-manage document_exporter ${backupDir} -c -p";
rcloneConfigFile = config.age.secrets."rclone-pubsolar.conf".path;
};
};
}