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Added zone-serial increment support for dns_nsd challenge #5241

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Added zone-serial increment support for dns_nsd challenge #5241

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7a00473
added zone-serial increment support for dns_nsd challenge
Aug 6, 2024
a126059
cat'ed zone contents instead of mv'ing file -- this helps preserve ol…
Aug 6, 2024
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22 changes: 22 additions & 0 deletions dnsapi/dns_nsd.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,18 @@ Options:
Issues: github.com/acmesh-official/acme.sh/issues/2245
'

# args: zonefile
_local_nsd_get_serial()
{
local _zone_file="$1"
cat "$_zone_file" | \
sed -n '/IN[ \t]*SOA.*/,/[)]/p' | \
sed 's/\([^;]\);\(.*\)/\1/g' | \
sed -z 's/\n//g' | \
sed 's/\([^(]*\)[(]\([^)]*\)[)]/\2/g' | \
sed 's/\([ \t]*\)\([0-9]*\)\(.*\)/\2/g'
}

# args: fulldomain txtvalue
dns_nsd_add() {
fulldomain=$1
Expand Down Expand Up @@ -37,6 +49,16 @@ dns_nsd_add() {
_savedomainconf Nsd_Command "$Nsd_Command"

echo "$fulldomain. $ttlvalue IN TXT \"$txtvalue\"" >>"$Nsd_ZoneFile"

# Updating serial. The idea is that we'll parse out the old serial first,
# generate a new one by incrementing, then sed-replace the old by the new one.
local zone_serial=$(_local_nsd_get_serial "$Nsd_ZoneFile")
local zone_serial_next=$[$zone_serial+1]
local tmp_zonefile=$(mktemp)
cat "$Nsd_ZoneFile" | sed "s/$zone_serial/$zone_serial_next/" > "$tmp_zonefile"
cat "$tmp_zonefile" > "$Nsd_ZoneFile"
rm -rf "$tmp_zonefile"

_info "Added TXT record for $fulldomain"
_debug "Running $Nsd_Command"
if eval "$Nsd_Command"; then
Expand Down