You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
261 lines
6.6 KiB
261 lines
6.6 KiB
#!/usr/bin/env sh |
|
# Mythic Beasts is a long-standing UK service provider using standards-based OAuth2 authentication |
|
# To test: ./acme.sh --dns dns_mythic_beasts --test --debug 1 --output-insecure --issue --domain domain.com |
|
# Cannot retest once cert is issued |
|
# OAuth2 tokens only valid for 300 seconds so we do not store |
|
# NOTE: This will remove all TXT records matching the fulldomain, not just the added ones (_acme-challenge.www.domain.com) |
|
|
|
# Test OAuth2 credentials |
|
#MB_AK="aaaaaaaaaaaaaaaa" |
|
#MB_AS="bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb" |
|
|
|
# URLs |
|
MB_API='https://api.mythic-beasts.com/dns/v2/zones' |
|
MB_AUTH='https://auth.mythic-beasts.com/login' |
|
|
|
######## Public functions ##################### |
|
|
|
#Usage: add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs" |
|
dns_mythic_beasts_add() { |
|
fulldomain=$1 |
|
txtvalue=$2 |
|
|
|
_info "MYTHIC BEASTS Adding record $fulldomain = $txtvalue" |
|
if ! _initAuth; then |
|
return 1 |
|
fi |
|
|
|
if ! _get_root "$fulldomain"; then |
|
return 1 |
|
fi |
|
|
|
# method path body_data |
|
if _mb_rest POST "$_domain/records/$_sub_domain/TXT" "$txtvalue"; then |
|
|
|
if _contains "$response" "1 records added"; then |
|
_info "Added, verifying..." |
|
# Max 120 seconds to publish |
|
for i in $(seq 1 6); do |
|
# Retry on error |
|
if ! _mb_rest GET "$_domain/records/$_sub_domain/TXT?verify"; then |
|
_sleep 20 |
|
else |
|
_info "Record published!" |
|
return 0 |
|
fi |
|
done |
|
|
|
else |
|
_err "\n$response" |
|
fi |
|
|
|
fi |
|
_err "Add txt record error." |
|
return 1 |
|
} |
|
|
|
#Usage: rm _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs" |
|
dns_mythic_beasts_rm() { |
|
fulldomain=$1 |
|
txtvalue=$2 |
|
|
|
_info "MYTHIC BEASTS Removing record $fulldomain = $txtvalue" |
|
if ! _initAuth; then |
|
return 1 |
|
fi |
|
|
|
if ! _get_root "$fulldomain"; then |
|
return 1 |
|
fi |
|
|
|
# method path body_data |
|
if _mb_rest DELETE "$_domain/records/$_sub_domain/TXT" "$txtvalue"; then |
|
_info "Record removed" |
|
return 0 |
|
fi |
|
_err "Remove txt record error." |
|
return 1 |
|
} |
|
|
|
#################### Private functions below ################################## |
|
|
|
#Possible formats: |
|
# _acme-challenge.www.example.com |
|
# _acme-challenge.example.com |
|
# _acme-challenge.example.co.uk |
|
# _acme-challenge.www.example.co.uk |
|
# _acme-challenge.sub1.sub2.www.example.co.uk |
|
# sub1.sub2.example.co.uk |
|
# example.com |
|
# example.co.uk |
|
#returns |
|
# _sub_domain=_acme-challenge.www |
|
# _domain=domain.com |
|
_get_root() { |
|
domain=$1 |
|
i=1 |
|
p=1 |
|
|
|
_debug "Detect the root zone" |
|
while true; do |
|
h=$(printf "%s" "$domain" | cut -d . -f $i-100) |
|
if [ -z "$h" ]; then |
|
_err "Domain exhausted" |
|
return 1 |
|
fi |
|
|
|
# Use the status errors to find the domain, continue on 403 Access denied |
|
# method path body_data |
|
_mb_rest GET "$h/records" |
|
ret="$?" |
|
if [ "$ret" -eq 0 ]; then |
|
_sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p) |
|
_domain="$h" |
|
_debug _sub_domain "$_sub_domain" |
|
_debug _domain "$_domain" |
|
return 0 |
|
elif [ "$ret" -eq 1 ]; then |
|
return 1 |
|
fi |
|
|
|
p=$i |
|
i=$(_math "$i" + 1) |
|
|
|
if [ "$i" -gt 50 ]; then |
|
break |
|
fi |
|
done |
|
_err "Domain too long" |
|
return 1 |
|
} |
|
|
|
_initAuth() { |
|
MB_AK="${MB_AK:-$(_readaccountconf_mutable MB_AK)}" |
|
MB_AS="${MB_AS:-$(_readaccountconf_mutable MB_AS)}" |
|
|
|
if [ -z "$MB_AK" ] || [ -z "$MB_AS" ]; then |
|
MB_AK="" |
|
MB_AS="" |
|
_err "Please specify an OAuth2 Key & Secret" |
|
return 1 |
|
fi |
|
|
|
_saveaccountconf_mutable MB_AK "$MB_AK" |
|
_saveaccountconf_mutable MB_AS "$MB_AS" |
|
|
|
if ! _oauth2; then |
|
return 1 |
|
fi |
|
|
|
_info "Checking authentication" |
|
_secure_debug access_token "$MB_TK" |
|
_sleep 1 |
|
|
|
# GET a list of zones |
|
# method path body_data |
|
if ! _mb_rest GET ""; then |
|
_err "The token is invalid" |
|
return 1 |
|
fi |
|
_info "Token OK" |
|
return 0 |
|
} |
|
|
|
# Github appears to use an outbound proxy for requests which means subsequent requests may not have the same |
|
# source IP. The standard Mythic Beasts OAuth2 tokens are tied to an IP, meaning github test requests fail |
|
# authentication. This is a work around using an undocumented MB API to obtain a token not tied to an |
|
# IP just for the github tests. |
|
_oauth2() { |
|
if [ "$GITHUB_ACTIONS" = "true" ]; then |
|
_oauth2_github |
|
else |
|
_oauth2_std |
|
fi |
|
return $? |
|
} |
|
|
|
_oauth2_std() { |
|
# HTTP Basic Authentication |
|
_H1="Authorization: Basic $(echo "$MB_AK:$MB_AS" | _base64)" |
|
_H2="Accepts: application/json" |
|
export _H1 _H2 |
|
body="grant_type=client_credentials" |
|
|
|
_info "Getting OAuth2 token..." |
|
# body url [needbase64] [POST|PUT|DELETE] [ContentType] |
|
response="$(_post "$body" "$MB_AUTH" "" "POST" "application/x-www-form-urlencoded")" |
|
if _contains "$response" "\"token_type\":\"bearer\""; then |
|
MB_TK="$(echo "$response" | _egrep_o "access_token\":\"[^\"]*\"" | cut -d : -f 2 | tr -d '"')" |
|
if [ -z "$MB_TK" ]; then |
|
_err "Unable to get access_token" |
|
_err "\n$response" |
|
return 1 |
|
fi |
|
else |
|
_err "OAuth2 token_type not Bearer" |
|
_err "\n$response" |
|
return 1 |
|
fi |
|
_debug2 response "$response" |
|
return 0 |
|
} |
|
|
|
_oauth2_github() { |
|
_H1="Accepts: application/json" |
|
export _H1 |
|
body="{\"login\":{\"handle\":\"$MB_AK\",\"pass\":\"$MB_AS\",\"floating\":1}}" |
|
|
|
_info "Getting Floating token..." |
|
# body url [needbase64] [POST|PUT|DELETE] [ContentType] |
|
response="$(_post "$body" "$MB_AUTH" "" "POST" "application/json")" |
|
MB_TK="$(echo "$response" | _egrep_o "\"token\":\"[^\"]*\"" | cut -d : -f 2 | tr -d '"')" |
|
if [ -z "$MB_TK" ]; then |
|
_err "Unable to get token" |
|
_err "\n$response" |
|
return 1 |
|
fi |
|
_debug2 response "$response" |
|
return 0 |
|
} |
|
|
|
# method path body_data |
|
_mb_rest() { |
|
# URL encoded body for single API operations |
|
m="$1" |
|
ep="$2" |
|
data="$3" |
|
|
|
if [ -z "$ep" ]; then |
|
_mb_url="$MB_API" |
|
else |
|
_mb_url="$MB_API/$ep" |
|
fi |
|
|
|
_H1="Authorization: Bearer $MB_TK" |
|
_H2="Accepts: application/json" |
|
export _H1 _H2 |
|
if [ "$data" ] || [ "$m" = "POST" ] || [ "$m" = "PUT" ] || [ "$m" = "DELETE" ]; then |
|
# body url [needbase64] [POST|PUT|DELETE] [ContentType] |
|
response="$(_post "data=$data" "$_mb_url" "" "$m" "application/x-www-form-urlencoded")" |
|
else |
|
response="$(_get "$_mb_url")" |
|
fi |
|
|
|
if [ "$?" != "0" ]; then |
|
_err "Request error" |
|
return 1 |
|
fi |
|
|
|
header="$(cat "$HTTP_HEADER")" |
|
status="$(echo "$header" | _egrep_o "^HTTP[^ ]* .*$" | cut -d " " -f 2-100 | tr -d "\f\n")" |
|
code="$(echo "$status" | _egrep_o "^[0-9]*")" |
|
if [ "$code" -ge 400 ] || _contains "$response" "\"error\"" || _contains "$response" "invalid_client"; then |
|
_err "error $status" |
|
_err "\n$response" |
|
_debug "\n$header" |
|
return 2 |
|
fi |
|
|
|
_debug2 response "$response" |
|
return 0 |
|
}
|
|
|