dyn_dns_acme.sh

dyn_dns_acme.sh

#!/usr/bin/bash

#DynDNS.com Domain API

CUSTOMERNAME='PLEASE-SET'
USERNAME='PLEASE-SET'
PASSWORD='PLEASE-SET'
DYNAPIURL="https://api.dynect.net/"
ZONE="PLEASE-SET"

fulldomain=""
sessionstatus=""
authtoken=""
record_id=""

#REST_API
########  Public functions #####################

#Usage: dns_myapi_add   _acme-challenge.www.domain.com   "Challenge-code"
dns_dynect_add() {
    fulldomain=$1
    txtvalue=$2
    _debug fulldomain "$fulldomain"
    _debug txtvalue "$txtvalue"

    _info "Using dynect"

    if ! get_token; then
        return 1
    fi
    
    if [ ! -z "$authtoken" ]; then
        if ! add_record "$fulldomain" "$textvalue"; then
            return 1
        fi
        
        if ! publish_zone; then
            return 1
        fi
    else
        return 1
    fi

    return 0
}

#Usage: fulldomain txtvalue
#Remove the txt record after validation.
dns_dynect_rm() {

    authtoken=""
    sessionstatus=""
    record_id=""

    fulldomain=$1

    _debug fulldomain "$fulldomain"
    
    _info "Using dynect"

    if ! get_token; then
        return 1
    fi
    
    if [ ! -z "$authtoken" ]; then
    
        if ! get_record_id; then
            return 1
        fi
    
        if ! rm_record "$fulldomain"; then
            return 1
        fi
        
        if ! publish_zone; then
            return 1
        fi
    else
        return 1
    fi
    
    return 0
}

####################  Private functions below ##################################

#get Auth-Token
get_token() {

    _info "Getting token"

    data="{\"customer_name\":\"$CUSTOMERNAME\", \"user_name\":\"$USERNAME\", \"password\":\"$PASSWORD\"}"
    url="$DYNAPIURL""REST/Session/"
    method="POST"
    
    _debug data "$data"
    _debug url "$url"

    export _H1="Content-Type: application/json"

    response="$(_post "$data" "$url" "" "$method")"
    #response=$(curl --ipv4 -X POST -H "Content-Type: application/json" $url -d $data)

    _debug response "$response"

    sessionstatus=$(echo $response | grep -Po "(?<=\"status\": \")[^\"]*")

    _debug sessionstatus "$sessionstatus"

    if [ "$sessionstatus" = "success" ]; then
        authtoken=$(echo $response | grep -Po "(?<=\"token\": \")[^\"]*")
        _info "Token received"
        _debug authtoken "$authtoken"
        return 0
    fi

    _err "get token failed"
    return 1
}

#add TXT record
add_record() {

    _info "Adding TXT record"

    data="{\"rdata\":{\"txtdata\":\"$txtvalue\"},\"ttl\":\"300\"}"
    url="$DYNAPIURL""REST/TXTRecord/""$ZONE/""$fulldomain"
    method="POST"

    export _H1="Content-Type: application/json"
    export _H2="Auth-Token: "$authtoken

    response="$(_post "$data" "$url" "" "$method")"
    sessionstatus=$(echo $response | grep -Po "(?<=\"status\": \")[^\"]*")

    _debug response $response
    _debug response $sessionstatus

    if [ "$sessionstatus" = "success" ]; then
        _info "TXT Record successfully added"
        return 0
    fi

    _err "add TXT record failed"
    return 1
}

#publish the zone
publish_zone() {

    _info "Publishing zone"

    data="{\"publish\":\"true\"}"    
    url="$DYNAPIURL""REST/Zone/""$ZONE/"
    method="PUT"

    export _H1="Content-Type: application/json"
    export _H2="Auth-Token: "$authtoken

    response="$(_post "$data" "$url" "" "$method")"

    sessionstatus=$(echo $response | grep -Po "(?<=\"status\": \")[^\"]*")

    if [ "$sessionstatus" = "success" ]; then
        _info "Zone published"
        return 0
    fi

    _err "publish zone failed"
    return 1
}

#get record_id of TXT record so we can delete the record
get_record_id() {

    _info "Getting record_id of TXT record"

    url="$DYNAPIURL""REST/TXTRecord/""$ZONE/""$fulldomain"

    export _H1="Content-Type: application/json"
    export _H2="Auth-Token: $authtoken"

    response="$(_get "$url" "" "")"

    _debug response "$response"

    sessionstatus=$(echo $response | grep -Po "(?<=\"status\": \")[^\"]*")
    
    _debug sessionstatus "$sessionstatus"

    if [ "$sessionstatus" = "success" ]; then
        record_id=$(echo $response | grep -Po "(?<=\"data\": \[\"/REST/TXTRecord/$ZONE/$fulldomain/)[^\"]*")
        _debug record_id "$record_id"
        return 0
    fi

    _err "getting record_id failed"
    return 1
}

#delete TXT record
rm_record() {

    _info "Deleting TXT record"
  
    url="$DYNAPIURL""REST/TXTRecord/""$ZONE/""$fulldomain/""$record_id/"
    method="DELETE"
    
    _debug url "$url"

    export _H1="Content-Type: application/json"
    export _H2="Auth-Token: $authtoken"

    response="$(_post "" "$url" "" "$method")"

    _debug response "$response"

    sessionstatus=$(echo $response | grep -Po "(?<=\"status\": \")[^\"]*")

    _debug sessionstatus "$sessionstatus"

    if [ "$sessionstatus" = "success" ]; then
        _info "TXT record successfully deleted"
        return 0
    fi

    _err "delete TXT record failed"
    return 1
}

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