380 lines
12 KiB
Bash
380 lines
12 KiB
Bash
|
#!/usr/bin/env sh
|
||
|
|
|
||
|
|
# Akamai Edge DNS v2 API
|
||
|
|
# User must provide Open Edgegrid API credentials to the EdgeDNS installation. The remote user in EdgeDNS must have CRUD access to
|
||
|
|
# Edge DNS Zones and Recordsets, e.g. DNS—Zone Record Management authorization
|
||
|
|
|
||
|
|
# Report bugs to https://control.akamai.com/apps/support-ui/#/contact-support
|
||
|
|
|
||
|
|
# Values to export:
|
||
|
|
# --EITHER--
|
||
|
|
# *** NOT IMPLEMENTED YET ***
|
||
|
|
# specify Edgegrid credentials file and section
|
||
|
|
# AKAMAI_EDGERC=<full file path>
|
||
|
|
# AKAMAI_EDGERC_SECTION="default"
|
||
|
|
## --OR--
|
||
|
|
# specify indiviual credentials
|
||
|
|
# export AKAMAI_HOST = <host>
|
||
|
|
# export AKAMAI_ACCESS_TOKEN = <access token>
|
||
|
|
# export AKAMAI_CLIENT_TOKEN = <client token>
|
||
|
|
# export AKAMAI_CLIENT_SECRET = <client secret>
|
||
|
|
|
||
|
|
ACME_EDGEDNS_VERSION="0.1.0"
|
||
|
|
|
||
|
|
######## Public functions #####################
|
||
|
|
|
||
|
|
# Usage: dns_edgedns_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
|
||
|
|
# Used to add txt record
|
||
|
|
#
|
||
|
|
dns_edgedns_add() {
|
||
|
|
fulldomain=$1
|
||
|
|
txtvalue=$2
|
||
|
|
|
||
|
|
_debug "ENTERING DNS_EDGEDNS_ADD"
|
||
|
|
|
||
|
|
_debug2 "fulldomain" "$fulldomain"
|
||
|
|
_debug2 "txtvalue" "$txtvalue"
|
||
|
|
|
||
|
|
if ! _EDGEDNS_credentials; then
|
||
|
|
_err "$@"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
if ! _EDGEDNS_getZoneInfo "$fulldomain"; then
|
||
|
|
_err "Invalid domain"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
_debug2 "Add: zone" "${zone}"
|
||
|
|
acmeRecordURI=$(printf "%s/%s/names/%s/type/TXT" "${edge_endpoint}" "${zone}" "${fulldomain}")
|
||
|
|
_debug3 "Add URL" "$acmeRecordURI"
|
||
|
|
# Get existing TXT record
|
||
|
|
_edge_result=$(_edgedns_rest GET "$acmeRecordURI")
|
||
|
|
_api_status="$?"
|
||
|
|
if [ "$_api_status" -ne 0 ] && [ "$_edge_result" != "404" ]; then
|
||
|
|
_err "$(printf "Failure accessing Akamai Edge DNS API Server. Error: %s" "$_edge_result")"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
rdata="\"$txtvalue\""
|
||
|
|
record_op="POST"
|
||
|
|
if [ "$_api_status" -eq 0 ]; then
|
||
|
|
# record already exists. Get existing record data and update
|
||
|
|
record_op="PUT"
|
||
|
|
rdlist=$(echo -n "$response" | _egrep_o "\"rdata\"\\s*:\\s*\\[\\s*\"[^\"]*\"\\s*]" | cut -d : -f 2 | tr -d "[]\"")
|
||
|
|
_debug2 "existing TXT found"
|
||
|
|
_debug2 "record data" "$rdlist"
|
||
|
|
# value already there?
|
||
|
|
if _contains "$rdlist" "$txtvalue" ; then
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
comma=","
|
||
|
|
rdata="$rdata$comma\"${txtvalue}\""
|
||
|
|
fi
|
||
|
|
_debug2 "new/updated rdata: " "${rdata}"
|
||
|
|
# Add the txtvalue TXT Record
|
||
|
|
body="{\"name\":\"$fulldomain\",\"type\":\"TXT\",\"ttl\":600, \"rdata\":"[${rdata}]"}"
|
||
|
|
_debug3 "Add body '${body}'"
|
||
|
|
_edge_result=$(_edgedns_rest "$record_op" "$acmeRecordURI" "$body")
|
||
|
|
_api_status="$?"
|
||
|
|
if [ "$_api_status" -eq 0 ]; then
|
||
|
|
_log "$(printf "Text value %s added to recordset %s" "${txtvalue}" "${fulldomain}")"
|
||
|
|
return 0
|
||
|
|
else
|
||
|
|
_err "$(printf "error adding TXT record for validation. Error: %s" "$_edge_result")"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
# Usage: dns_edgedns_rm _acme-challenge.www.domain.com
|
||
|
|
# Used to delete txt record
|
||
|
|
#
|
||
|
|
dns_edgedns_rm() {
|
||
|
|
fulldomain=$1
|
||
|
|
}
|
||
|
|
|
||
|
|
#################### Private functions below ##################################
|
||
|
|
|
||
|
|
_EDGEDNS_credentials() {
|
||
|
|
_debug "GettingEdge DNS credentials"
|
||
|
|
_log $(printf "ACME DNSAPI Edge DNS version %s" ${ACME_EDGEDNS_VERSION})
|
||
|
|
args_missing=0
|
||
|
|
if [ -z "${AKAMAI_ACCESS_TOKEN}" ]; then
|
||
|
|
AKAMAI_ACCESS_TOKEN=""
|
||
|
|
AKAMAI_CLIENT_TOKEN=""
|
||
|
|
AKAMAI_HOST=""
|
||
|
|
AKAMAI_CLIENT_SECRET=""
|
||
|
|
_err "AKAMAI_ACCESS_TOKEN is missing"
|
||
|
|
args_missing=1
|
||
|
|
fi
|
||
|
|
if [ -z "$AKAMAI_CLIENT_TOKEN" ]; then
|
||
|
|
AKAMAI_ACCESS_TOKEN=""
|
||
|
|
AKAMAI_CLIENT_TOKEN=""
|
||
|
|
AKAMAI_HOST=""
|
||
|
|
AKAMAI_CLIENT_SECRET=""
|
||
|
|
_err "AKAMAI_CLIENT_TOKEN is missing"
|
||
|
|
args_missing=1
|
||
|
|
fi
|
||
|
|
if [ -z "${AKAMAI_HOST}" ]; then
|
||
|
|
AKAMAI_ACCESS_TOKEN=""
|
||
|
|
AKAMAI_CLIENT_TOKEN=""
|
||
|
|
AKAMAI_HOST=""
|
||
|
|
AKAMAI_CLIENT_SECRET=""
|
||
|
|
_err "AKAMAI_HOST is missing"
|
||
|
|
args_missing=1
|
||
|
|
fi
|
||
|
|
if [ -z "${AKAMAI_CLIENT_SECRET}" ]; then
|
||
|
|
AKAMAI_ACCESS_TOKEN=""
|
||
|
|
AKAMAI_CLIENT_TOKEN=""
|
||
|
|
AKAMAI_HOST=""
|
||
|
|
AKAMAI_CLIENT_SECRET=""
|
||
|
|
_err "AKAMAI_CLIENT_SECRET is missing"
|
||
|
|
args_missing=1
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ "${args_missing}" = 1 ]; then
|
||
|
|
_err "You have not properly specified the EdgeDNS Open Edgegrid API credentials. Please try again."
|
||
|
|
return 1
|
||
|
|
else
|
||
|
|
_saveaccountconf_mutable AKAMAI_ACCESS_TOKEN "${AKAMAI_ACCESS_TOKEN}"
|
||
|
|
_saveaccountconf_mutable AKAMAI_CLIENT_TOKEN "${AKAMAI_CLIENT_TOKEN}"
|
||
|
|
_saveaccountconf_mutable AKAMAI_HOST "${AKAMAI_HOST}"
|
||
|
|
_saveaccountconf_mutable AKAMAI_CLIENT_SECRET "${AKAMAI_CLIENT_SECRET}"
|
||
|
|
# Set whether curl should use secure or insecure mode
|
||
|
|
fi
|
||
|
|
export HTTPS_INSECURE=0 # All Edgegrid API calls are secure
|
||
|
|
edge_endpoint=$(printf "https://%s/config-dns/v2/zones" "${AKAMAI_HOST}")
|
||
|
|
_debug3 "Edge API Endpoint:" "${edge_endpoint}"
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
_EDGEDNS_getZoneInfo() {
|
||
|
|
_debug "Getting Zoneinfo"
|
||
|
|
zoneEnd=false
|
||
|
|
curZone=$1
|
||
|
|
while [ -n "${zoneEnd}" ]; do
|
||
|
|
# we can strip the first part of the fulldomain, since its just the _acme-challenge string
|
||
|
|
curZone="${curZone#*.}"
|
||
|
|
# suffix . needed for zone -> domain.tld.
|
||
|
|
# create zone get url
|
||
|
|
get_zone_url=$(printf "%s/%s" "${edge_endpoint}" "${curZone}")
|
||
|
|
_debug3 "Zone Get: " "${get_zone_url}"
|
||
|
|
curResult=$(_edgedns_rest GET "$get_zone_url")
|
||
|
|
retVal=$?
|
||
|
|
if [ $retVal -ne 0 ]; then
|
||
|
|
if ["$curResult" != "404" ]; then
|
||
|
|
_err "$(printf "Managed zone validation failed. Error response: %s" "$retVal")"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
if _contains "${curResult}" "\"zone\":" ; then
|
||
|
|
_debug2 "Zone data" "${curResult}"
|
||
|
|
zone=$(echo -n "${curResult}" | _egrep_o "\"zone\"\\s*:\\s*\"[^\"]*\"" | _head_n 1 | cut -d : -f 2 | tr -d "\"")
|
||
|
|
_debug2 "Zone" "${zone}"
|
||
|
|
zoneFound=""
|
||
|
|
zoneEnd=""
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ "${curZone#*.}" != "$curZone" ]; then
|
||
|
|
_debug2 $(printf "%s still contains a '.' - so we can check next higher level" "$curZone")
|
||
|
|
else
|
||
|
|
zoneEnd=true
|
||
|
|
_err "Couldn't retrieve zone data."
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
_err "Failed to retrieve zone data."
|
||
|
|
return 2
|
||
|
|
}
|
||
|
|
|
||
|
|
_edgedns_headers=""
|
||
|
|
|
||
|
|
_edgedns_rest() {
|
||
|
|
_debug "Handling API Request"
|
||
|
|
m=$1
|
||
|
|
# Assume endpoint is complete path, including query args if applicable
|
||
|
|
ep=$2
|
||
|
|
body_data=$3
|
||
|
|
_edgedns_content_type=""
|
||
|
|
_request_url_path="$ep"
|
||
|
|
_request_body="$body_data"
|
||
|
|
_request_method="$m"
|
||
|
|
_edgedns_headers=""
|
||
|
|
tab=""
|
||
|
|
_edgedns_headers="${_edgedns_headers}${tab}Host: ${AKAMAI_HOST}"
|
||
|
|
tab="\t"
|
||
|
|
# Set in acme.sh _post/_get
|
||
|
|
#_edgedns_headers="${_edgedns_headers}${tab}User-Agent:ACME DNSAPI Edge DNS version ${ACME_EDGEDNS_VERSION}"
|
||
|
|
_edgedns_headers="${_edgedns_headers}${tab}Accept: application/json"
|
||
|
|
if [ "$m" != "GET" ] && [ "$m" != "DELETE" ] ; then
|
||
|
|
_edgedns_content_type="application/json;charset=UTF-8"
|
||
|
|
_utf8_body_data="$(echo -n "$ _request_body" | iconv -t utf-8)"
|
||
|
|
_utf8_body_len="$(echo -n "$_utf8_body_data" | awk '{print length}')"
|
||
|
|
_edgedns_headers="${_edgedns_headers}${tab}Content-Length: ${_utf8_body_len}"
|
||
|
|
fi
|
||
|
|
_made_auth_header=$(_edgedns_make_auth_header)
|
||
|
|
_edgedns_headers="${_edgedns_headers}${tab}Authorization: ${_made_auth_header}"
|
||
|
|
_secure_debug2 "Made Auth Header" "${_made_auth_header}"
|
||
|
|
hdr_indx=1
|
||
|
|
work_header="${_edgedns_headers}${tab}"
|
||
|
|
_debug3 "work_header" "${work_header}"
|
||
|
|
while [ "${work_header}" ]; do
|
||
|
|
entry="${work_header%%\\t*}"; work_header="${work_header#*\\t}"
|
||
|
|
export "$(printf "_H%s=%s" "${hdr_indx}" "${entry}")"
|
||
|
|
_debug2 "Request Header " "${entry}"
|
||
|
|
hdr_indx=$(( hdr_indx + 1 ))
|
||
|
|
done
|
||
|
|
|
||
|
|
# clear headers from previous request to avoid getting wrong http code on timeouts
|
||
|
|
:>"$HTTP_HEADER"
|
||
|
|
_debug "$ep"
|
||
|
|
if [ "$m" != "GET" ]; then
|
||
|
|
_debug "Method data" "$data"
|
||
|
|
# body url [needbase64] [POST|PUT|DELETE] [ContentType]
|
||
|
|
response="$(_post "$_utf8_body_data" "$ep" false "$m")"
|
||
|
|
else
|
||
|
|
response="$(_get "$ep")"
|
||
|
|
fi
|
||
|
|
|
||
|
|
_ret="$?"
|
||
|
|
_debug "response" "$response"
|
||
|
|
_code="$(grep "^HTTP" "$HTTP_HEADER" | _tail_n 1 | cut -d " " -f 2 | tr -d "\\r\\n")"
|
||
|
|
_debug2 "http response code" "$_code"
|
||
|
|
|
||
|
|
if [ "$_code" = "200" ] || [ "$_code" = "201" ]; then
|
||
|
|
# All good
|
||
|
|
response="$(echo "$response" | _normalizeJson)"
|
||
|
|
echo -n "${response}"
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ "$_code" = "204" ]; then
|
||
|
|
# Success, no body
|
||
|
|
echo -n ""
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ "$_code" = "400" ]; then
|
||
|
|
_err "Bad request presented"
|
||
|
|
_log "$(printf "Headers: %s" "$_edgedns_headers")"
|
||
|
|
_log "$(printf "Method: %s" "$_request_method")"
|
||
|
|
_log "$(printf "URL: %s" "$ep")"
|
||
|
|
_log "$(printf "Data: %s" "$data")"
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ "$_code" = "403" ]; then
|
||
|
|
_err "access denied make sure your Edgegrid cedentials are correct."
|
||
|
|
fi
|
||
|
|
|
||
|
|
echo "$_code"
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
|
||
|
|
_edgedns_eg_timestamp() {
|
||
|
|
_eg_timestamp=$(date -u "+%Y%m%dT%H:%M:%S+0000")
|
||
|
|
}
|
||
|
|
|
||
|
|
_edgedns_new_nonce() {
|
||
|
|
_nonce=$(uuidgen -r)
|
||
|
|
}
|
||
|
|
|
||
|
|
_edgedns_make_auth_header() {
|
||
|
|
_debug "Constructing Auth Header"
|
||
|
|
_edgedns_eg_timestamp
|
||
|
|
_edgedns_new_nonce
|
||
|
|
# "Unsigned authorization header: 'EG1-HMAC-SHA256 client_token=block;access_token=block;timestamp=20200806T14:16:33+0000;nonce=72cde72c-82d9-4721-9854-2ba057929d67;'"
|
||
|
|
_auth_header="$(printf "EG1-HMAC-SHA256 client_token=%s;access_token=%s;timestamp=%s;nonce=%s;" "${AKAMAI_CLIENT_TOKEN}" "${AKAMAI_ACCESS_TOKEN}" "${_eg_timestamp}" "${_nonce}")"
|
||
|
|
_secure_debug2 "Unsigned Auth Header: " "$_auth_header"
|
||
|
|
|
||
|
|
_sig="$(_edgedns_sign_request)"
|
||
|
|
_signed_auth_header="$(printf "%ssignature=%s" "${_auth_header}" "${_sig}")"
|
||
|
|
_secure_debug2 "Signed Auth Header: " "${_signed_auth_header}"
|
||
|
|
echo -n "${_signed_auth_header}"
|
||
|
|
}
|
||
|
|
|
||
|
|
_edgedns_sign_request() {
|
||
|
|
_debug2 "Signing http request"
|
||
|
|
_signed_data=$(_edgedns_make_data_to_sign "${_auth_header}")
|
||
|
|
_secure_debug2 "Returned signed data" "$_signed_data"
|
||
|
|
_key=$(_edgedns_make_signing_key "${_eg_timestamp}")
|
||
|
|
_signed_req=$(_edgedns_base64_hmac_sha256 "$_signed_data" "$_key")
|
||
|
|
_secure_debug2 "Signed Request" "${_signed_req}"
|
||
|
|
echo -n "${_signed_req}"
|
||
|
|
}
|
||
|
|
|
||
|
|
_edgedns_make_signing_key() {
|
||
|
|
_debug2 "Creating sigining key"
|
||
|
|
ts=$1
|
||
|
|
_signing_key=$(_edgedns_base64_hmac_sha256 "$ts" "${AKAMAI_CLIENT_SECRET}")
|
||
|
|
_secure_debug2 "Signing Key" "${_signing_key}"
|
||
|
|
echo -n "${_signing_key}"
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
_edgedns_make_data_to_sign() {
|
||
|
|
_debug2 "Processing data to sign"
|
||
|
|
hdr=$1
|
||
|
|
_secure_debug2 "hdr" "$hdr"
|
||
|
|
content_hash=$(_edgedns_make_content_hash)
|
||
|
|
path="$(echo -n "${_request_url_path}" |sed 's/https\?:\/\///')"
|
||
|
|
path="${path#*$AKAMAI_HOST}"
|
||
|
|
_debug "hier path" "${path}"
|
||
|
|
# dont expose headers to sign so use MT string
|
||
|
|
data="$(printf "%s\thttps\t%s\t%s\t%s\t%s\t%s" "${_request_method}" "${AKAMAI_HOST}" "${path}" "" "${content_hash}" "$hdr")"
|
||
|
|
_secure_debug2 "Data to Sign" "${data}"
|
||
|
|
echo -n "${data}"
|
||
|
|
}
|
||
|
|
|
||
|
|
_edgedns_make_content_hash() {
|
||
|
|
_debug2 "Generating content hash"
|
||
|
|
prep_body=""
|
||
|
|
_hash=""
|
||
|
|
_debug2 "Request method" "${_request_method}"
|
||
|
|
if [ "${_request_method}" != "POST" ] || [ -z "${_request_body}" ]; then
|
||
|
|
echo -n "${prep_body}"
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
prep_body="$(echo -n "${_request_body}")"
|
||
|
|
_debug2 "Req body" "${prep_body}"
|
||
|
|
_hash=$(_edgedns_base64_sha256 "${prep_body}")
|
||
|
|
_debug2 "Content hash" "${_hash}"
|
||
|
|
echo -n "${_hash}"
|
||
|
|
}
|
||
|
|
|
||
|
|
_edgedns_base64_hmac_sha256() {
|
||
|
|
_debug2 "Generating hmac"
|
||
|
|
data=$1
|
||
|
|
key=$2
|
||
|
|
encoded_data="$(echo -n "${data}" | iconv -t utf-8)"
|
||
|
|
encoded_key="$(echo -n "${key}" | iconv -t utf-8)"
|
||
|
|
_secure_debug2 "encoded data" "${encoded_data}"
|
||
|
|
_secure_debug2 "encoded key" "${encoded_key}"
|
||
|
|
#key_hex="$(_durl_replace_base64 "$key" | _dbase64 | _hex_dump | tr -d ' ')"
|
||
|
|
#data_sig="$(printf "%s" "$encoded_data" | _hmac sha256 "${key_hex}" | _base64 | _url_replace)"
|
||
|
|
|
||
|
|
data_sig="$(echo -n "$encoded_data" | ${ACME_OPENSSL_BIN:-openssl} dgst -sha256 -hmac $encoded_key -binary | _base64)"
|
||
|
|
_secure_debug2 "data_sig:" "${data_sig}"
|
||
|
|
out="$(echo -n "${data_sig}" | iconv -f utf-8)"
|
||
|
|
_secure_debug2 "hmac" "${out}"
|
||
|
|
echo -n "${out}"
|
||
|
|
}
|
||
|
|
|
||
|
|
_edgedns_base64_sha256() {
|
||
|
|
_debug2 "Creating sha256 digest"
|
||
|
|
trg=$1
|
||
|
|
utf8_str="$(echo -n "${trg}" | iconv -t utf-8)"
|
||
|
|
_secure_debug2 "digest data" "$trg"
|
||
|
|
_secure_debug2 "encoded digest data" "${utf8_str}"
|
||
|
|
digest="$(echo -n "${trg}" | ${ACME_OPENSSL_BIN:-openssl} dgst -sha256 -binary | _base64)"
|
||
|
|
out="$(echo -n "${digest}" | iconv -f utf-8)"
|
||
|
|
_secure_debug2 "digest decode" "${out}"
|
||
|
|
echo -n "${out}"
|
||
|
|
}
|
||
|
|
|
||
|
|
#_edgedns_parse_edgerc() {
|
||
|
|
# filepath=$1
|
||
|
|
# section=$2
|
||
|
|
#}
|
||
|
|
|
||
|
|
|