mirror of
https://github.com/plantroon/acme.sh.git
synced 2024-11-09 16:01:46 +00:00
693627a858
Use the behavior established in the botocore python library to inform how and when instance metadata is fetched in an attempt to acquire valid AWS credentials. - Use it as a fallback when no other credentials are provided - Set the timeout of metadata requests to 1 second
322 lines
10 KiB
Bash
Executable File
322 lines
10 KiB
Bash
Executable File
#!/usr/bin/env sh
|
|
|
|
#
|
|
#AWS_ACCESS_KEY_ID="sdfsdfsdfljlbjkljlkjsdfoiwje"
|
|
#
|
|
#AWS_SECRET_ACCESS_KEY="xxxxxxx"
|
|
|
|
#This is the Amazon Route53 api wrapper for acme.sh
|
|
|
|
AWS_HOST="route53.amazonaws.com"
|
|
AWS_URL="https://$AWS_HOST"
|
|
AWS_METADATA_URL="http://169.254.169.254/latest/meta-data"
|
|
|
|
AWS_WIKI="https://github.com/Neilpang/acme.sh/wiki/How-to-use-Amazon-Route53-API"
|
|
|
|
######## Public functions #####################
|
|
|
|
#Usage: dns_myapi_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs"
|
|
dns_aws_add() {
|
|
fulldomain=$1
|
|
txtvalue=$2
|
|
|
|
AWS_ACCESS_KEY_ID="${AWS_ACCESS_KEY_ID:-$(_readaccountconf_mutable AWS_ACCESS_KEY_ID)}"
|
|
AWS_SECRET_ACCESS_KEY="${AWS_SECRET_ACCESS_KEY:-$(_readaccountconf_mutable AWS_SECRET_ACCESS_KEY)}"
|
|
|
|
if [ -z "$AWS_ACCESS_KEY_ID" ] || [ -z "$AWS_SECRET_ACCESS_KEY" ]; then
|
|
_use_instance_role
|
|
fi
|
|
|
|
if [ -z "$AWS_ACCESS_KEY_ID" ] || [ -z "$AWS_SECRET_ACCESS_KEY" ]; then
|
|
AWS_ACCESS_KEY_ID=""
|
|
AWS_SECRET_ACCESS_KEY=""
|
|
_err "You don't specify aws route53 api key id and and api key secret yet."
|
|
_err "Please create your key and try again. see $(__green $AWS_WIKI)"
|
|
return 1
|
|
fi
|
|
|
|
#save for future use, unless using a role which will be fetched as needed
|
|
if [ -z "$_using_instance_role" ]; then
|
|
_saveaccountconf_mutable AWS_ACCESS_KEY_ID "$AWS_ACCESS_KEY_ID"
|
|
_saveaccountconf_mutable AWS_SECRET_ACCESS_KEY "$AWS_SECRET_ACCESS_KEY"
|
|
fi
|
|
|
|
_debug "First detect the root zone"
|
|
if ! _get_root "$fulldomain"; then
|
|
_err "invalid domain"
|
|
return 1
|
|
fi
|
|
_debug _domain_id "$_domain_id"
|
|
_debug _sub_domain "$_sub_domain"
|
|
_debug _domain "$_domain"
|
|
|
|
_info "Geting existing records for $fulldomain"
|
|
if ! aws_rest GET "2013-04-01$_domain_id/rrset" "name=$fulldomain&type=TXT"; then
|
|
return 1
|
|
fi
|
|
|
|
if _contains "$response" "<Name>$fulldomain.</Name>"; then
|
|
_resource_record="$(echo "$response" | sed 's/<ResourceRecordSet>/"/g' | tr '"' "\n" | grep "<Name>$fulldomain.</Name>" | _egrep_o "<ResourceRecords.*</ResourceRecords>" | sed "s/<ResourceRecords>//" | sed "s#</ResourceRecords>##")"
|
|
_debug "_resource_record" "$_resource_record"
|
|
else
|
|
_debug "single new add"
|
|
fi
|
|
|
|
if [ "$_resource_record" ] && _contains "$response" "$txtvalue"; then
|
|
_info "The txt record already exists, skip"
|
|
return 0
|
|
fi
|
|
|
|
_debug "Adding records"
|
|
|
|
_aws_tmpl_xml="<ChangeResourceRecordSetsRequest xmlns=\"https://route53.amazonaws.com/doc/2013-04-01/\"><ChangeBatch><Changes><Change><Action>UPSERT</Action><ResourceRecordSet><Name>$fulldomain</Name><Type>TXT</Type><TTL>300</TTL><ResourceRecords>$_resource_record<ResourceRecord><Value>\"$txtvalue\"</Value></ResourceRecord></ResourceRecords></ResourceRecordSet></Change></Changes></ChangeBatch></ChangeResourceRecordSetsRequest>"
|
|
|
|
if aws_rest POST "2013-04-01$_domain_id/rrset/" "" "$_aws_tmpl_xml" && _contains "$response" "ChangeResourceRecordSetsResponse"; then
|
|
_info "txt record updated success."
|
|
return 0
|
|
fi
|
|
|
|
return 1
|
|
}
|
|
|
|
#fulldomain txtvalue
|
|
dns_aws_rm() {
|
|
fulldomain=$1
|
|
txtvalue=$2
|
|
|
|
AWS_ACCESS_KEY_ID="${AWS_ACCESS_KEY_ID:-$(_readaccountconf_mutable AWS_ACCESS_KEY_ID)}"
|
|
AWS_SECRET_ACCESS_KEY="${AWS_SECRET_ACCESS_KEY:-$(_readaccountconf_mutable AWS_SECRET_ACCESS_KEY)}"
|
|
|
|
if [ -z "$AWS_ACCESS_KEY_ID" ] || [ -z "$AWS_SECRET_ACCESS_KEY" ]; then
|
|
_use_instance_role
|
|
fi
|
|
|
|
_debug "First detect the root zone"
|
|
if ! _get_root "$fulldomain"; then
|
|
_err "invalid domain"
|
|
return 1
|
|
fi
|
|
_debug _domain_id "$_domain_id"
|
|
_debug _sub_domain "$_sub_domain"
|
|
_debug _domain "$_domain"
|
|
|
|
_info "Geting existing records for $fulldomain"
|
|
if ! aws_rest GET "2013-04-01$_domain_id/rrset" "name=$fulldomain&type=TXT"; then
|
|
return 1
|
|
fi
|
|
|
|
if _contains "$response" "<Name>$fulldomain.</Name>"; then
|
|
_resource_record="$(echo "$response" | sed 's/<ResourceRecordSet>/"/g' | tr '"' "\n" | grep "<Name>$fulldomain.</Name>" | _egrep_o "<ResourceRecords.*</ResourceRecords>" | sed "s/<ResourceRecords>//" | sed "s#</ResourceRecords>##")"
|
|
_debug "_resource_record" "$_resource_record"
|
|
else
|
|
_debug "no records exists, skip"
|
|
return 0
|
|
fi
|
|
|
|
_aws_tmpl_xml="<ChangeResourceRecordSetsRequest xmlns=\"https://route53.amazonaws.com/doc/2013-04-01/\"><ChangeBatch><Changes><Change><Action>DELETE</Action><ResourceRecordSet><ResourceRecords>$_resource_record</ResourceRecords><Name>$fulldomain.</Name><Type>TXT</Type><TTL>300</TTL></ResourceRecordSet></Change></Changes></ChangeBatch></ChangeResourceRecordSetsRequest>"
|
|
|
|
if aws_rest POST "2013-04-01$_domain_id/rrset/" "" "$_aws_tmpl_xml" && _contains "$response" "ChangeResourceRecordSetsResponse"; then
|
|
_info "txt record deleted success."
|
|
return 0
|
|
fi
|
|
|
|
return 1
|
|
|
|
}
|
|
|
|
#################### Private functions below ##################################
|
|
|
|
_get_root() {
|
|
domain=$1
|
|
i=2
|
|
p=1
|
|
|
|
if aws_rest GET "2013-04-01/hostedzone"; then
|
|
while true; do
|
|
h=$(printf "%s" "$domain" | cut -d . -f $i-100)
|
|
_debug2 "Checking domain: $h"
|
|
if [ -z "$h" ]; then
|
|
if _contains "$response" "<IsTruncated>true</IsTruncated>" && _contains "$response" "<NextMarker>"; then
|
|
_debug "IsTruncated"
|
|
_nextMarker="$(echo "$response" | _egrep_o "<NextMarker>.*</NextMarker>" | cut -d '>' -f 2 | cut -d '<' -f 1)"
|
|
_debug "NextMarker" "$_nextMarker"
|
|
if aws_rest GET "2013-04-01/hostedzone" "marker=$_nextMarker"; then
|
|
_debug "Truncated request OK"
|
|
i=2
|
|
p=1
|
|
continue
|
|
else
|
|
_err "Truncated request error."
|
|
fi
|
|
fi
|
|
#not valid
|
|
_err "Invalid domain"
|
|
return 1
|
|
fi
|
|
|
|
if _contains "$response" "<Name>$h.</Name>"; then
|
|
hostedzone="$(echo "$response" | sed 's/<HostedZone>/#&/g' | tr '#' '\n' | _egrep_o "<HostedZone><Id>[^<]*<.Id><Name>$h.<.Name>.*<PrivateZone>false<.PrivateZone>.*<.HostedZone>")"
|
|
_debug hostedzone "$hostedzone"
|
|
if [ "$hostedzone" ]; then
|
|
_domain_id=$(printf "%s\n" "$hostedzone" | _egrep_o "<Id>.*<.Id>" | head -n 1 | _egrep_o ">.*<" | tr -d "<>")
|
|
if [ "$_domain_id" ]; then
|
|
_sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p)
|
|
_domain=$h
|
|
return 0
|
|
fi
|
|
_err "Can not find domain id: $h"
|
|
return 1
|
|
fi
|
|
fi
|
|
p=$i
|
|
i=$(_math "$i" + 1)
|
|
done
|
|
fi
|
|
return 1
|
|
}
|
|
|
|
_use_instance_role() {
|
|
if ! _get "$AWS_METADATA_URL/iam/security-credentials/" true 1 | _head_n 1 | grep -Fq 200; then
|
|
_err "Unable to fetch IAM role from AWS instance metadata."
|
|
return
|
|
fi
|
|
_aws_role=$(_get "$AWS_METADATA_URL/iam/security-credentials/" "" 1)
|
|
_debug "_aws_role" "$_aws_role"
|
|
_aws_creds="$(
|
|
_get "$AWS_METADATA_URL/iam/security-credentials/$_aws_role" "" 1 \
|
|
| _normalizeJson \
|
|
| tr '{,}' '\n' \
|
|
| while read -r _line; do
|
|
_key="$(echo "${_line%%:*}" | tr -d '"')"
|
|
_value="${_line#*:}"
|
|
_debug3 "_key" "$_key"
|
|
_secure_debug3 "_value" "$_value"
|
|
case "$_key" in
|
|
AccessKeyId) echo "AWS_ACCESS_KEY_ID=$_value" ;;
|
|
SecretAccessKey) echo "AWS_SECRET_ACCESS_KEY=$_value" ;;
|
|
Token) echo "AWS_SESSION_TOKEN=$_value" ;;
|
|
esac
|
|
done \
|
|
| paste -sd' ' -
|
|
)"
|
|
_secure_debug "_aws_creds" "$_aws_creds"
|
|
eval "$_aws_creds"
|
|
_using_instance_role=true
|
|
}
|
|
|
|
#method uri qstr data
|
|
aws_rest() {
|
|
mtd="$1"
|
|
ep="$2"
|
|
qsr="$3"
|
|
data="$4"
|
|
|
|
_debug mtd "$mtd"
|
|
_debug ep "$ep"
|
|
_debug qsr "$qsr"
|
|
_debug data "$data"
|
|
|
|
CanonicalURI="/$ep"
|
|
_debug2 CanonicalURI "$CanonicalURI"
|
|
|
|
CanonicalQueryString="$qsr"
|
|
_debug2 CanonicalQueryString "$CanonicalQueryString"
|
|
|
|
RequestDate="$(date -u +"%Y%m%dT%H%M%SZ")"
|
|
_debug2 RequestDate "$RequestDate"
|
|
|
|
#RequestDate="20161120T141056Z" ##############
|
|
|
|
export _H1="x-amz-date: $RequestDate"
|
|
|
|
aws_host="$AWS_HOST"
|
|
CanonicalHeaders="host:$aws_host\nx-amz-date:$RequestDate\n"
|
|
SignedHeaders="host;x-amz-date"
|
|
if [ -n "$AWS_SESSION_TOKEN" ]; then
|
|
export _H3="x-amz-security-token: $AWS_SESSION_TOKEN"
|
|
CanonicalHeaders="${CanonicalHeaders}x-amz-security-token:$AWS_SESSION_TOKEN\n"
|
|
SignedHeaders="${SignedHeaders};x-amz-security-token"
|
|
fi
|
|
_debug2 CanonicalHeaders "$CanonicalHeaders"
|
|
_debug2 SignedHeaders "$SignedHeaders"
|
|
|
|
RequestPayload="$data"
|
|
_debug2 RequestPayload "$RequestPayload"
|
|
|
|
Hash="sha256"
|
|
|
|
CanonicalRequest="$mtd\n$CanonicalURI\n$CanonicalQueryString\n$CanonicalHeaders\n$SignedHeaders\n$(printf "%s" "$RequestPayload" | _digest "$Hash" hex)"
|
|
_debug2 CanonicalRequest "$CanonicalRequest"
|
|
|
|
HashedCanonicalRequest="$(printf "$CanonicalRequest%s" | _digest "$Hash" hex)"
|
|
_debug2 HashedCanonicalRequest "$HashedCanonicalRequest"
|
|
|
|
Algorithm="AWS4-HMAC-SHA256"
|
|
_debug2 Algorithm "$Algorithm"
|
|
|
|
RequestDateOnly="$(echo "$RequestDate" | cut -c 1-8)"
|
|
_debug2 RequestDateOnly "$RequestDateOnly"
|
|
|
|
Region="us-east-1"
|
|
Service="route53"
|
|
|
|
CredentialScope="$RequestDateOnly/$Region/$Service/aws4_request"
|
|
_debug2 CredentialScope "$CredentialScope"
|
|
|
|
StringToSign="$Algorithm\n$RequestDate\n$CredentialScope\n$HashedCanonicalRequest"
|
|
|
|
_debug2 StringToSign "$StringToSign"
|
|
|
|
kSecret="AWS4$AWS_SECRET_ACCESS_KEY"
|
|
|
|
#kSecret="wJalrXUtnFEMI/K7MDENG+bPxRfiCYEXAMPLEKEY" ############################
|
|
|
|
_secure_debug2 kSecret "$kSecret"
|
|
|
|
kSecretH="$(printf "%s" "$kSecret" | _hex_dump | tr -d " ")"
|
|
_secure_debug2 kSecretH "$kSecretH"
|
|
|
|
kDateH="$(printf "$RequestDateOnly%s" | _hmac "$Hash" "$kSecretH" hex)"
|
|
_debug2 kDateH "$kDateH"
|
|
|
|
kRegionH="$(printf "$Region%s" | _hmac "$Hash" "$kDateH" hex)"
|
|
_debug2 kRegionH "$kRegionH"
|
|
|
|
kServiceH="$(printf "$Service%s" | _hmac "$Hash" "$kRegionH" hex)"
|
|
_debug2 kServiceH "$kServiceH"
|
|
|
|
kSigningH="$(printf "%s" "aws4_request" | _hmac "$Hash" "$kServiceH" hex)"
|
|
_debug2 kSigningH "$kSigningH"
|
|
|
|
signature="$(printf "$StringToSign%s" | _hmac "$Hash" "$kSigningH" hex)"
|
|
_debug2 signature "$signature"
|
|
|
|
Authorization="$Algorithm Credential=$AWS_ACCESS_KEY_ID/$CredentialScope, SignedHeaders=$SignedHeaders, Signature=$signature"
|
|
_debug2 Authorization "$Authorization"
|
|
|
|
_H2="Authorization: $Authorization"
|
|
_debug _H2 "$_H2"
|
|
|
|
url="$AWS_URL/$ep"
|
|
if [ "$qsr" ]; then
|
|
url="$AWS_URL/$ep?$qsr"
|
|
fi
|
|
|
|
if [ "$mtd" = "GET" ]; then
|
|
response="$(_get "$url")"
|
|
else
|
|
response="$(_post "$data" "$url")"
|
|
fi
|
|
|
|
_ret="$?"
|
|
_debug2 response "$response"
|
|
if [ "$_ret" = "0" ]; then
|
|
if _contains "$response" "<ErrorResponse"; then
|
|
_err "Response error:$response"
|
|
return 1
|
|
fi
|
|
fi
|
|
|
|
return "$_ret"
|
|
}
|