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93 lines
2.5 KiB
Bash
93 lines
2.5 KiB
Bash
#!/usr/bin/env sh
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# shellcheck disable=SC2034
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dns_nsd_info='NLnetLabs NSD Server
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Site: github.com/NLnetLabs/nsd
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Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi#nsd
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Options:
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Nsd_ZoneFile Zone File path. E.g. "/etc/nsd/zones/example.com.zone"
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Nsd_Command Command. E.g. "sudo nsd-control reload"
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Issues: github.com/acmesh-official/acme.sh/issues/2245
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'
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# args: zonefile
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_local_nsd_get_serial()
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{
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local _zone_file="$1"
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cat "$_zone_file" | \
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sed -n '/IN[ \t]*SOA.*/,/[)]/p' | \
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sed 's/\([^;]\);\(.*\)/\1/g' | \
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sed -z 's/\n//g' | \
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sed 's/\([^(]*\)[(]\([^)]*\)[)]/\2/g' | \
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sed 's/\([ \t]*\)\([0-9]*\)\(.*\)/\2/g'
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}
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# args: fulldomain txtvalue
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dns_nsd_add() {
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fulldomain=$1
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txtvalue=$2
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ttlvalue=300
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Nsd_ZoneFile="${Nsd_ZoneFile:-$(_readdomainconf Nsd_ZoneFile)}"
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Nsd_Command="${Nsd_Command:-$(_readdomainconf Nsd_Command)}"
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# Arg checks
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if [ -z "$Nsd_ZoneFile" ] || [ -z "$Nsd_Command" ]; then
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Nsd_ZoneFile=""
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Nsd_Command=""
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_err "Specify ENV vars Nsd_ZoneFile and Nsd_Command"
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return 1
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fi
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if [ ! -f "$Nsd_ZoneFile" ]; then
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Nsd_ZoneFile=""
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Nsd_Command=""
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_err "No such file: $Nsd_ZoneFile"
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return 1
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fi
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_savedomainconf Nsd_ZoneFile "$Nsd_ZoneFile"
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_savedomainconf Nsd_Command "$Nsd_Command"
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echo "$fulldomain. $ttlvalue IN TXT \"$txtvalue\"" >>"$Nsd_ZoneFile"
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# Updating serial. The idea is that we'll parse out the old serial first,
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# generate a new one by incrementing, then sed-replace the old by the new one.
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local zone_serial=$(_local_nsd_get_serial "$Nsd_ZoneFile")
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local zone_serial_next=$[$zone_serial+1]
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local tmp_zonefile=$(mktemp)
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cat "$Nsd_ZoneFile" | sed "s/$zone_serial/$zone_serial_next/" > "$tmp_zonefile"
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cat "$tmp_zonefile" > "$Nsd_ZoneFile"
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rm -rf "$tmp_zonefile"
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_info "Added TXT record for $fulldomain"
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_debug "Running $Nsd_Command"
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if eval "$Nsd_Command"; then
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_info "Successfully updated the zone"
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return 0
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else
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_err "Problem updating the zone"
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return 1
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fi
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}
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# args: fulldomain txtvalue
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dns_nsd_rm() {
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fulldomain=$1
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txtvalue=$2
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ttlvalue=300
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Nsd_ZoneFile="${Nsd_ZoneFile:-$(_readdomainconf Nsd_ZoneFile)}"
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Nsd_Command="${Nsd_Command:-$(_readdomainconf Nsd_Command)}"
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_sed_i "/$fulldomain. $ttlvalue IN TXT \"$txtvalue\"/d" "$Nsd_ZoneFile"
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_info "Removed TXT record for $fulldomain"
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_debug "Running $Nsd_Command"
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if eval "$Nsd_Command"; then
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_info "Successfully reloaded NSD "
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return 0
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else
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_err "Problem reloading NSD"
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return 1
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fi
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}
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