112 lines
3.1 KiB
Bash
Executable File
112 lines
3.1 KiB
Bash
Executable File
#!/bin/bash
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set -euo pipefail
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# Configure the one explicitly managed classroom printer. The Ricoh Aficio
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# MP C3502 supports PCL 6 as standard; Debian Trixie's compressed Foomatic
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# database supplies this generic color PCL 6/PCL XL path without vendor code.
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QUEUE="Classroom_Color"
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DRIVER="foomatic-db-compressed-ppds:0/ppd/foomatic-ppd/Generic-PCL_6_PCL_XL_Printer-pxlcolor.ppd"
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MAKE_MODEL="Ricoh Aficio MP C3502 (Generic PCL 6 Color)"
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LOCATION="Ekklesia Classroom"
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MAKE_DEFAULT=true
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usage() {
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cat <<'USAGE'
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Usage: classroom-printer-setup [--no-default] PRINTER-IP-OR-URI
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Examples:
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sudo classroom-printer-setup 10.20.30.40
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sudo classroom-printer-setup socket://printer.example.org:9100
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An IP address or hostname uses JetDirect/AppSocket on port 9100. Explicit
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socket://, ipp://, ipps:// and lpd:// URIs are also accepted.
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USAGE
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}
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log() {
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echo "[classroom-printer-setup] $1"
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}
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fail() {
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log "ERROR: $1" >&2
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exit 1
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}
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if [[ "${CLASSROOM_PRINTER_SETUP_TESTING:-false}" != "true" && $EUID -ne 0 ]]; then
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fail "run this command as root: sudo classroom-printer-setup <printer-ip>"
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fi
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if [[ "${1:-}" == "--no-default" ]]; then
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MAKE_DEFAULT=false
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shift
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fi
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if [[ $# -ne 1 || "$1" == "-h" || "$1" == "--help" ]]; then
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usage
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[[ $# -eq 1 ]] && exit 0
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exit 2
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fi
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address="$1"
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case "$address" in
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socket://*|ipp://*|ipps://*|lpd://*)
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uri="$address"
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;;
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*://*)
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fail "unsupported printer URI scheme: $address"
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;;
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*)
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if [[ ! "$address" =~ ^[A-Za-z0-9._:-]+$ ]]; then
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fail "printer address contains unsupported characters: $address"
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fi
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uri="socket://${address}:9100"
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;;
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esac
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for command in lpadmin lpinfo lpstat cupsenable cupsaccept; do
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command -v "$command" >/dev/null 2>&1 || \
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fail "$command is missing; reinstall the ekklesia-classroom package"
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done
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if ! lpstat -r >/dev/null 2>&1; then
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command -v systemctl >/dev/null 2>&1 && \
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systemctl start cups.service >/dev/null 2>&1 || true
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fi
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lpstat -r >/dev/null 2>&1 || \
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fail "CUPS is not running; check: systemctl status cups"
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models="$(lpinfo -m)" || fail "CUPS could not list installed printer drivers"
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if ! grep -q "^${DRIVER} " <<< "$models"; then
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fail "the Debian generic color PCL 6 driver is not installed"
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fi
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log "configuring ${QUEUE} at ${uri}"
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# Repeating this command updates the same named queue; it never creates a
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# second destination. None of these operations connects to the printer.
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lpadmin \
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-p "$QUEUE" \
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-v "$uri" \
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-m "$DRIVER" \
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-D "$MAKE_MODEL" \
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-L "$LOCATION" || fail "CUPS could not configure ${QUEUE}"
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cupsenable "$QUEUE" || fail "CUPS could not enable ${QUEUE}"
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cupsaccept "$QUEUE" || fail "CUPS could not accept jobs for ${QUEUE}"
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if [[ "$MAKE_DEFAULT" == true ]]; then
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lpadmin -d "$QUEUE" || fail "CUPS could not make ${QUEUE} the default"
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fi
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log "${QUEUE} is configured, enabled and accepting jobs."
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if [[ "$MAKE_DEFAULT" == true ]]; then
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log "${QUEUE} is the system default printer."
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fi
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log "The printer may remain offline until it is reachable; this does not affect boot."
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