Система трансляции экранов компьютеров учеников на доску
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#!/bin/bash
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# Клиент (компьютер ученика) стучится на этот скрипт через веб-сервер
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# и тем самым заставляет доску (сервер) соединиться с его компьютером
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set -e
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set -f
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set -u
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_main_trigger_connect(){
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local umask_old
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local tmp
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tmp="$(umask 0022 && mktemp --tmpdir="$dir" connect.XXXXX)"
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test -f "$tmp"
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echo "$REMOTE_ADDR" > "$tmp"
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}
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# $1: HTTP_STATUS_CODE
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# $2: HTTP_STATUS_DESCRIPTION
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# $3: text of responce
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_response_text(){
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if [ -z "$*" ]; then
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echo_err "Empty args of html_reposnse"
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exit 1
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fi
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echo "Status: $1 $2"
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#echo "Access-Control-Allow-Origin: *"
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echo "Content-Type: text/plain; charset=utf-8"
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echo -e "\n$3"
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}
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if [ "${SOURCED:-0}" != 1 ]; then
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readonly dir='/var/spool/doskast'
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_main_trigger_connect "$@"
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_response_text 200 OK OK
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fi
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