acme.sh/dnsapi/dns_selfhost.sh
Sergey Ponomarev 6b7b5caf54 DNS provider API: structured description
Instead of using comments declare info in a special variable.
Then the variable can be used to print the DNS API provider usage.
The usage can be parsed on UI and show all needed inputs for options.

The info is stored in plain string that it's both human-readable and easy to parse:

    dns_example_info='API name
     An extended description.
     Multiline.
    Domains: list of alternative domains to find
    Site: the dns provider website e.g. example.com
    Docs: Link to ACME.sh wiki for the provider
    Options:
     VARIABLE1 Title for the option1.
     VARIABLE2 Title for the option2. Default "default value".
     VARIABLE3 Title for the option3. Description to show on UI. Optional.
    Issues: Link to a support ticket on https://github.com/acmesh-official/acme.sh
    Author: First Lastname <authoremail@example.com>, Another Author <https://github.com/example>;
    '

Here:
VARIABLE1 will be required.
VARIABLE2 will be required too but will be populated with a "default value".
VARIABLE3 is optional and can be empty.

A DNS provider may have alternative options like CloudFlare may use API KEY or API Token.
You can use a second section OptionsAlt: section.

Some providers may have alternative names or domains e.g. Aliyun and AlibabaCloud.
Add them to Domains: section.

Signed-off-by: Sergey Ponomarev <stokito@gmail.com>
2024-05-18 12:06:41 +03:00

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#!/usr/bin/env sh
# shellcheck disable=SC2034
dns_selfhost_info='SelfHost.de
Site: SelfHost.de
Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi2#dns_selfhost
Options:
SELFHOSTDNS_USERNAME Username
SELFHOSTDNS_PASSWORD Password
SELFHOSTDNS_MAP Subdomain name
Issues: github.com/acmesh-official/acme.sh/issues/4291
Author: Marvin Edeler
'
dns_selfhost_add() {
fulldomain=$1
txt=$2
_info "Calling acme-dns on selfhost"
_debug fulldomain "$fulldomain"
_debug txtvalue "$txt"
SELFHOSTDNS_UPDATE_URL="https://selfhost.de/cgi-bin/api.pl"
# Get values, but don't save until we successfully validated
SELFHOSTDNS_USERNAME="${SELFHOSTDNS_USERNAME:-$(_readaccountconf_mutable SELFHOSTDNS_USERNAME)}"
SELFHOSTDNS_PASSWORD="${SELFHOSTDNS_PASSWORD:-$(_readaccountconf_mutable SELFHOSTDNS_PASSWORD)}"
# These values are domain dependent, so read them from there
SELFHOSTDNS_MAP="${SELFHOSTDNS_MAP:-$(_readdomainconf SELFHOSTDNS_MAP)}"
# Selfhost api can't dynamically add TXT record,
# so we have to store the last used RID of the domain to support a second RID for wildcard domains
# (format: 'fulldomainA:lastRid fulldomainB:lastRid ...')
SELFHOSTDNS_MAP_LAST_USED_INTERNAL=$(_readdomainconf SELFHOSTDNS_MAP_LAST_USED_INTERNAL)
if [ -z "${SELFHOSTDNS_USERNAME:-}" ] || [ -z "${SELFHOSTDNS_PASSWORD:-}" ]; then
_err "SELFHOSTDNS_USERNAME and SELFHOSTDNS_PASSWORD must be set"
return 1
fi
# get the domain entry from SELFHOSTDNS_MAP
# only match full domains (at the beginning of the string or with a leading whitespace),
# e.g. don't match mytest.example.com or sub.test.example.com for test.example.com
# if the domain is defined multiple times only the last occurance will be matched
mapEntry=$(echo "$SELFHOSTDNS_MAP" | sed -n -E "s/(^|^.*[[:space:]])($fulldomain)(:[[:digit:]]+)([:]?[[:digit:]]*)(.*)/\2\3\4/p")
_debug2 mapEntry "$mapEntry"
if test -z "$mapEntry"; then
_err "SELFHOSTDNS_MAP must contain the fulldomain incl. prefix and at least one RID"
return 1
fi
# get the RIDs from the map entry
rid1=$(echo "$mapEntry" | cut -d: -f2)
rid2=$(echo "$mapEntry" | cut -d: -f3)
# read last used rid domain
lastUsedRidForDomainEntry=$(echo "$SELFHOSTDNS_MAP_LAST_USED_INTERNAL" | sed -n -E "s/(^|^.*[[:space:]])($fulldomain:[[:digit:]]+)(.*)/\2/p")
_debug2 lastUsedRidForDomainEntry "$lastUsedRidForDomainEntry"
lastUsedRidForDomain=$(echo "$lastUsedRidForDomainEntry" | cut -d: -f2)
rid="$rid1"
if [ "$lastUsedRidForDomain" = "$rid" ] && ! test -z "$rid2"; then
rid="$rid2"
fi
_info "Trying to add $txt on selfhost for rid: $rid"
data="?username=$SELFHOSTDNS_USERNAME&password=$SELFHOSTDNS_PASSWORD&rid=$rid&content=$txt"
response="$(_get "$SELFHOSTDNS_UPDATE_URL$data")"
if ! echo "$response" | grep "200 OK" >/dev/null; then
_err "Invalid response of acme-dns for selfhost"
return 1
fi
# write last used rid domain
newLastUsedRidForDomainEntry="$fulldomain:$rid"
if ! test -z "$lastUsedRidForDomainEntry"; then
# replace last used rid entry for domain
SELFHOSTDNS_MAP_LAST_USED_INTERNAL=$(echo "$SELFHOSTDNS_MAP_LAST_USED_INTERNAL" | sed -n -E "s/$lastUsedRidForDomainEntry/$newLastUsedRidForDomainEntry/p")
else
# add last used rid entry for domain
if test -z "$SELFHOSTDNS_MAP_LAST_USED_INTERNAL"; then
SELFHOSTDNS_MAP_LAST_USED_INTERNAL="$newLastUsedRidForDomainEntry"
else
SELFHOSTDNS_MAP_LAST_USED_INTERNAL="$SELFHOSTDNS_MAP_LAST_USED_INTERNAL $newLastUsedRidForDomainEntry"
fi
fi
# Now that we know the values are good, save them
_saveaccountconf_mutable SELFHOSTDNS_USERNAME "$SELFHOSTDNS_USERNAME"
_saveaccountconf_mutable SELFHOSTDNS_PASSWORD "$SELFHOSTDNS_PASSWORD"
# These values are domain dependent, so store them there
_savedomainconf SELFHOSTDNS_MAP "$SELFHOSTDNS_MAP"
_savedomainconf SELFHOSTDNS_MAP_LAST_USED_INTERNAL "$SELFHOSTDNS_MAP_LAST_USED_INTERNAL"
}
dns_selfhost_rm() {
fulldomain=$1
txt=$2
_debug fulldomain "$fulldomain"
_debug txtvalue "$txt"
_info "Creating and removing of records is not supported by selfhost API, will not delete anything."
}