Система трансляции экранов компьютеров учеников на доску
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#!/bin/bash
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set -e
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set -f
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set -u
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set -o pipefail
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_safe_param_stdin() {
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tr -d '$`<>"%;)(&+'"'"
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}
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_main_server_watcher(){
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inotifywait --event close_write --format '%f' --monitor "$dir" | \
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while read -r line
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do
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# TODO: validate IP/hostname
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local target
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target="$(head -n 1 "$dir/$line" | _safe_param_stdin)"
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test -n "$target"
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xpra attach tcp://"$target":4648 &
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done
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}
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if [ "${SOURCED:-0}" != 1 ]; then
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readonly dir='/var/spool/doskast'
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_main_server_watcher "$@"
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fi
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