Alter Step
9530c272a3
This is not 100% fail proof , because the configuration can change and come back to the original one during the server restart but at the end of the day it's a better user experience.
47 lines
1.2 KiB
Bash
Executable File
47 lines
1.2 KiB
Bash
Executable File
#! /bin/sh
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. ./common.inc
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PROCESSED_TICKETS_FILE="${STATES_DIR}/processed-tickets"
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logger_debug handle_control_change
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update() {
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lockfile -1 -r 30 "$HANDLERS_LOCK_FILE" || exit 1
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if [ -e "$DNSCRYPT_FILE" ]; then
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./switch-to-dnscrypt-if-required.sh
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else
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./stop-dnscrypt-proxy.sh
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./switch-to-dhcp-if-required.sh
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fi
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rm -f "$HANDLERS_LOCK_FILE"
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}
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touch "${STATES_DIR}/updating"
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updated='no'
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while :; do
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find "$TICKETS_DIR" -type f -name 'ticket-*' > "$PROCESSED_TICKETS_FILE"
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if [ ! -s "$PROCESSED_TICKETS_FILE" -a "$updated" = 'yes' ]; then
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break
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fi
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logger_debug "New tickets found"
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find "$CONTROL_DIR" -type f -name '[a-zA-Z0-9]*' \! -name '*.tmp' \
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-exec md5 {} \; > "${STATES_DIR}/controls.cksum.new"
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if cmp -s "${STATES_DIR}/controls.cksum.new" "${STATES_DIR}/controls.cksum"; then
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logger_debug "Content of the controls dir actually didn't change"
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else
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update
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mv -f "${STATES_DIR}/controls.cksum.new" "${STATES_DIR}/controls.cksum"
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fi
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updated='yes'
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while read ticket_file; do
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rm -f "$ticket_file"
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done < "$PROCESSED_TICKETS_FILE"
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done
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rm -f "${STATES_DIR}/updating"
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rm -f "${STATES_DIR}/update-request"
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