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Added Azion DNS API #3551

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Jun 24, 2021
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204 changes: 204 additions & 0 deletions dnsapi/dns_azion.sh
Original file line number Diff line number Diff line change
@@ -0,0 +1,204 @@
#!/usr/bin/env sh

#
#AZION_Email=""
#AZION_Password=""
#

AZION_Api="https://api.azionapi.net"

######## Public functions ########

# Usage: add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
# Used to add txt record
dns_azion_add() {
fulldomain=$1
txtvalue=$2

_debug "Detect the root zone"
if ! _get_root "$fulldomain"; then
_err "Domain not found"
return 1
fi

_debug _sub_domain "$_sub_domain"
_debug _domain "$_domain"
_debug _domain_id "$_domain_id"

_info "Add or update record"
_get_record "$_domain_id" "$_sub_domain"
if [ "$record_id" ]; then
_payload="{\"record_type\": \"TXT\", \"entry\": \"$_sub_domain\", \"answers_list\": [$answers_list, \"$txtvalue\"], \"ttl\": 20}"
if _azion_rest PUT "intelligent_dns/$_domain_id/records/$record_id" "$_payload"; then
if _contains "$response" "$txtvalue"; then
_info "Record updated."
return 0
fi
fi
else
_payload="{\"record_type\": \"TXT\", \"entry\": \"$_sub_domain\", \"answers_list\": [\"$txtvalue\"], \"ttl\": 20}"
if _azion_rest POST "intelligent_dns/$_domain_id/records" "$_payload"; then
if _contains "$response" "$txtvalue"; then
_info "Record added."
return 0
fi
fi
fi
_err "Failed to add or update record."
return 1
}

# Usage: fulldomain txtvalue
# Used to remove the txt record after validation
dns_azion_rm() {
fulldomain=$1
txtvalue=$2

_debug "Detect the root zone"
if ! _get_root "$fulldomain"; then
_err "Domain not found"
return 1
fi

_debug _sub_domain "$_sub_domain"
_debug _domain "$_domain"
_debug _domain_id "$_domain_id"

_info "Removing record"
_get_record "$_domain_id" "$_sub_domain"
if [ "$record_id" ]; then
if _azion_rest DELETE "intelligent_dns/$_domain_id/records/$record_id"; then
_info "Record removed."
return 0
else
_err "Failed to remove record."
return 1
fi
else
_info "Record not found or already removed."
return 0
fi
}

#################### Private functions below ##################################
# Usage: _acme-challenge.www.domain.com
# returns
# _sub_domain=_acme-challenge.www
# _domain=domain.com
# _domain_id=sdjkglgdfewsdfg
_get_root() {
domain=$1
i=1
p=1

if ! _azion_rest GET "intelligent_dns"; then
return 1
fi

while true; do
h=$(printf "%s" "$domain" | cut -d . -f $i-100)
_debug h "$h"
if [ -z "$h" ]; then
# not valid
return 1
fi

if _contains "$response" "\"domain\":\"$h\""; then
_domain_id=$(echo "$response" | tr '{' "\n" | grep "\"domain\":\"$h\"" | _egrep_o "\"id\":[0-9]*" | _head_n 1 | cut -d : -f 2 | tr -d \")
_debug _domain_id "$_domain_id"
if [ "$_domain_id" ]; then
_sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
_domain=$h
return 0
fi
return 1
fi
p=$i
i=$(_math "$i" + 1)
done
return 1
}

_get_record() {
_domain_id=$1
_record=$2

if ! _azion_rest GET "intelligent_dns/$_domain_id/records"; then
return 1
fi

if _contains "$response" "\"entry\":\"$_record\""; then
_json_record=$(echo "$response" | tr '{}' "\n" | grep "\"entry\":\"$_record\"")
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please use double \n here:

tr '{}' "\n\n"

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@marcusgrando marcusgrando Jun 23, 2021

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Hi @Neilpang, shellcheck doesn't like this:

In dnsapi/dns_azion.sh line 131:
    _json_record=$(echo "$response" | tr '{}' "\n\n" | grep "\"entry\":\"$_record\"")
                                              ^----^ SC2020: tr replaces sets of chars, not words (mentioned due to duplicates).

For more information:
  https://www.shellcheck.net/wiki/SC2020

Instead I changed to only one bracket. Running tests right now.

if [ "$_json_record" ]; then
record_id=$(echo "$_json_record" | _egrep_o "\"record_id\":[0-9]*" | _head_n 1 | cut -d : -f 2 | tr -d \")
answers_list=$(echo "$_json_record" | _egrep_o "\"answers_list\":\[.*\]" | _head_n 1 | cut -d : -f 2 | tr -d \[\])
return 0
fi
return 1
fi
return 1
}

_get_token() {
AZION_Email="${AZION_Email:-$(_readaccountconf_mutable AZION_Email)}"
AZION_Password="${AZION_Password:-$(_readaccountconf_mutable AZION_Password)}"

if ! _contains "$AZION_Email" "@"; then
_err "It seems that the AZION_Email is not a valid email address. Revalidate your environments."
return 1
fi

if [ -z "$AZION_Email" ] || [ -z "$AZION_Password" ]; then
_err "You didn't specified a AZION_Email/AZION_Password to generate Azion token."
return 1
fi

_saveaccountconf_mutable AZION_Email "$AZION_Email"
_saveaccountconf_mutable AZION_Password "$AZION_Password"

_basic_auth=$(printf "%s:%s" "$AZION_Email" "$AZION_Password" | _base64)
_debug _basic_auth "$_basic_auth"

export _H1="Accept: application/json; version=3"
export _H2="Content-Type: application/json"
export _H3="Authorization: Basic $_basic_auth"

response="$(_post "" "$AZION_Api/tokens" "" "POST")"
if _contains "$response" "\"token\":\"" >/dev/null; then
_azion_token=$(echo "$response" | _egrep_o "\"token\":\"[^\"]*\"" | cut -d : -f 2 | tr -d \")
export AZION_Token="$_azion_token"
else
_err "Failed to generate Azion token"
return 1
fi
}

_azion_rest() {
_method=$1
_uri="$2"
_data="$3"

if [ -z "$AZION_Token" ]; then
_get_token
fi
_debug2 token "$AZION_Token"

export _H1="Accept: application/json; version=3"
export _H2="Content-Type: application/json"
export _H3="Authorization: token $AZION_Token"

if [ "$_method" != "GET" ]; then
_debug _data "$_data"
response="$(_post "$_data" "$AZION_Api/$_uri" "" "$_method")"
else
response="$(_get "$AZION_Api/$_uri")"
fi

_debug2 response "$response"

if [ "$?" != "0" ]; then
_err "error $_method $_uri $_data"
return 1
fi
return 0
}