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Merge pull request #3539 from Djelibeybi/dev
Merge pull request #3539 from Djelibeybi/dev
Add DNS API plugin for Oracle Cloud Infrastructure DNS Servicepull/3565/head
neil
4 years ago
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2 changed files with 329 additions and 5 deletions
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#!/usr/bin/env sh |
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# |
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# Acme.sh DNS API plugin for Oracle Cloud Infrastructure |
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# Copyright (c) 2021, Oracle and/or its affiliates |
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# |
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# The plugin will automatically use the default profile from an OCI SDK and CLI |
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# configuration file, if it exists. |
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# |
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# Alternatively, set the following environment variables: |
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# - OCI_CLI_TENANCY : OCID of tenancy that contains the target DNS zone |
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# - OCI_CLI_USER : OCID of user with permission to add/remove records from zones |
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# - OCI_CLI_REGION : Should point to the tenancy home region |
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# |
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# One of the following two variables is required: |
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# - OCI_CLI_KEY_FILE: Path to private API signing key file in PEM format; or |
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# - OCI_CLI_KEY : The private API signing key in PEM format |
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# |
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# NOTE: using an encrypted private key that needs a passphrase is not supported. |
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# |
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dns_oci_add() { |
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_fqdn="$1" |
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_rdata="$2" |
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if _get_oci_zone; then |
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_add_record_body="{\"items\":[{\"domain\":\"${_sub_domain}.${_domain}\",\"rdata\":\"$_rdata\",\"rtype\":\"TXT\",\"ttl\": 30,\"operation\":\"ADD\"}]}" |
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response=$(_signed_request "PATCH" "/20180115/zones/${_domain}/records" "$_add_record_body") |
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if [ "$response" ]; then |
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_info "Success: added TXT record for ${_sub_domain}.${_domain}." |
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else |
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_err "Error: failed to add TXT record for ${_sub_domain}.${_domain}." |
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_err "Check that the user has permission to add records to this zone." |
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return 1 |
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fi |
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else |
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return 1 |
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fi |
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} |
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dns_oci_rm() { |
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_fqdn="$1" |
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_rdata="$2" |
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if _get_oci_zone; then |
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_remove_record_body="{\"items\":[{\"domain\":\"${_sub_domain}.${_domain}\",\"rdata\":\"$_rdata\",\"rtype\":\"TXT\",\"operation\":\"REMOVE\"}]}" |
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response=$(_signed_request "PATCH" "/20180115/zones/${_domain}/records" "$_remove_record_body") |
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if [ "$response" ]; then |
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_info "Success: removed TXT record for ${_sub_domain}.${_domain}." |
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else |
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_err "Error: failed to remove TXT record for ${_sub_domain}.${_domain}." |
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_err "Check that the user has permission to remove records from this zone." |
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return 1 |
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fi |
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else |
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return 1 |
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fi |
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} |
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#################### Private functions below ################################## |
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_get_oci_zone() { |
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if ! _oci_config; then |
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return 1 |
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fi |
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if ! _get_zone "$_fqdn"; then |
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_err "Error: DNS Zone not found for $_fqdn in $OCI_CLI_TENANCY" |
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return 1 |
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fi |
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return 0 |
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} |
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_oci_config() { |
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_DEFAULT_OCI_CLI_CONFIG_FILE="$HOME/.oci/config" |
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OCI_CLI_CONFIG_FILE="${OCI_CLI_CONFIG_FILE:-$(_readaccountconf_mutable OCI_CLI_CONFIG_FILE)}" |
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if [ -z "$OCI_CLI_CONFIG_FILE" ]; then |
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OCI_CLI_CONFIG_FILE="$_DEFAULT_OCI_CLI_CONFIG_FILE" |
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fi |
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if [ "$_DEFAULT_OCI_CLI_CONFIG_FILE" != "$OCI_CLI_CONFIG_FILE" ]; then |
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_saveaccountconf_mutable OCI_CLI_CONFIG_FILE "$OCI_CLI_CONFIG_FILE" |
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else |
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_clearaccountconf_mutable OCI_CLI_CONFIG_FILE |
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fi |
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_DEFAULT_OCI_CLI_PROFILE="DEFAULT" |
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OCI_CLI_PROFILE="${OCI_CLI_PROFILE:-$(_readaccountconf_mutable OCI_CLI_PROFILE)}" |
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if [ "$_DEFAULT_OCI_CLI_PROFILE" != "$OCI_CLI_PROFILE" ]; then |
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_saveaccountconf_mutable OCI_CLI_PROFILE "$OCI_CLI_PROFILE" |
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else |
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OCI_CLI_PROFILE="$_DEFAULT_OCI_CLI_PROFILE" |
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_clearaccountconf_mutable OCI_CLI_PROFILE |
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fi |
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OCI_CLI_TENANCY="${OCI_CLI_TENANCY:-$(_readaccountconf_mutable OCI_CLI_TENANCY)}" |
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if [ "$OCI_CLI_TENANCY" ]; then |
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_saveaccountconf_mutable OCI_CLI_TENANCY "$OCI_CLI_TENANCY" |
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elif [ -f "$OCI_CLI_CONFIG_FILE" ]; then |
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_debug "Reading OCI_CLI_TENANCY value from: $OCI_CLI_CONFIG_FILE" |
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OCI_CLI_TENANCY="${OCI_CLI_TENANCY:-$(_readini "$OCI_CLI_CONFIG_FILE" tenancy "$OCI_CLI_PROFILE")}" |
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fi |
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if [ -z "$OCI_CLI_TENANCY" ]; then |
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_err "Error: unable to read OCI_CLI_TENANCY from config file or environment variable." |
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return 1 |
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fi |
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OCI_CLI_USER="${OCI_CLI_USER:-$(_readaccountconf_mutable OCI_CLI_USER)}" |
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if [ "$OCI_CLI_USER" ]; then |
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_saveaccountconf_mutable OCI_CLI_USER "$OCI_CLI_USER" |
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elif [ -f "$OCI_CLI_CONFIG_FILE" ]; then |
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_debug "Reading OCI_CLI_USER value from: $OCI_CLI_CONFIG_FILE" |
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OCI_CLI_USER="${OCI_CLI_USER:-$(_readini "$OCI_CLI_CONFIG_FILE" user "$OCI_CLI_PROFILE")}" |
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fi |
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if [ -z "$OCI_CLI_USER" ]; then |
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_err "Error: unable to read OCI_CLI_USER from config file or environment variable." |
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return 1 |
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fi |
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OCI_CLI_REGION="${OCI_CLI_REGION:-$(_readaccountconf_mutable OCI_CLI_REGION)}" |
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if [ "$OCI_CLI_REGION" ]; then |
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_saveaccountconf_mutable OCI_CLI_REGION "$OCI_CLI_REGION" |
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elif [ -f "$OCI_CLI_CONFIG_FILE" ]; then |
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_debug "Reading OCI_CLI_REGION value from: $OCI_CLI_CONFIG_FILE" |
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OCI_CLI_REGION="${OCI_CLI_REGION:-$(_readini "$OCI_CLI_CONFIG_FILE" region "$OCI_CLI_PROFILE")}" |
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fi |
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if [ -z "$OCI_CLI_REGION" ]; then |
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_err "Error: unable to read OCI_CLI_REGION from config file or environment variable." |
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return 1 |
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fi |
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OCI_CLI_KEY="${OCI_CLI_KEY:-$(_readaccountconf_mutable OCI_CLI_KEY)}" |
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if [ -z "$OCI_CLI_KEY" ]; then |
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_clearaccountconf_mutable OCI_CLI_KEY |
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OCI_CLI_KEY_FILE="${OCI_CLI_KEY_FILE:-$(_readini "$OCI_CLI_CONFIG_FILE" key_file "$OCI_CLI_PROFILE")}" |
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if [ "$OCI_CLI_KEY_FILE" ] && [ -f "$OCI_CLI_KEY_FILE" ]; then |
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_debug "Reading OCI_CLI_KEY value from: $OCI_CLI_KEY_FILE" |
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OCI_CLI_KEY=$(_base64 <"$OCI_CLI_KEY_FILE") |
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_saveaccountconf_mutable OCI_CLI_KEY "$OCI_CLI_KEY" |
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fi |
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else |
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_saveaccountconf_mutable OCI_CLI_KEY "$OCI_CLI_KEY" |
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fi |
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if [ -z "$OCI_CLI_KEY_FILE" ] && [ -z "$OCI_CLI_KEY" ]; then |
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_err "Error: unable to find key file path in OCI config file or OCI_CLI_KEY_FILE." |
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_err "Error: unable to load private API signing key from OCI_CLI_KEY." |
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return 1 |
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fi |
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if [ "$(printf "%s\n" "$OCI_CLI_KEY" | wc -l)" -eq 1 ]; then |
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OCI_CLI_KEY=$(printf "%s" "$OCI_CLI_KEY" | _dbase64 multiline) |
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fi |
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return 0 |
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} |
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# _get_zone(): retrieves the Zone name and OCID |
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# |
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# _sub_domain=_acme-challenge.www |
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# _domain=domain.com |
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# _domain_ociid=ocid1.dns-zone.oc1.. |
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_get_zone() { |
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domain=$1 |
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i=1 |
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p=1 |
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while true; do |
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h=$(printf "%s" "$domain" | cut -d . -f $i-100) |
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_debug h "$h" |
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if [ -z "$h" ]; then |
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# not valid |
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return 1 |
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fi |
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_domain_id=$(_signed_request "GET" "/20180115/zones/$h" "" "id") |
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if [ "$_domain_id" ]; then |
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_sub_domain=$(printf "%s" "$domain" | cut -d . -f 1-$p) |
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_domain=$h |
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_debug _domain_id "$_domain_id" |
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_debug _sub_domain "$_sub_domain" |
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_debug _domain "$_domain" |
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return 0 |
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fi |
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p=$i |
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i=$(_math "$i" + 1) |
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done |
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return 1 |
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} |
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#Usage: privatekey |
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#Output MD5 fingerprint |
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_fingerprint() { |
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pkey="$1" |
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if [ -z "$pkey" ]; then |
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_usage "Usage: _fingerprint privkey" |
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return 1 |
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fi |
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printf "%s" "$pkey" | ${ACME_OPENSSL_BIN:-openssl} rsa -pubout -outform DER 2>/dev/null | ${ACME_OPENSSL_BIN:-openssl} md5 -c | cut -d = -f 2 | tr -d ' ' |
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} |
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_signed_request() { |
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_sig_method="$1" |
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_sig_target="$2" |
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_sig_body="$3" |
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_return_field="$4" |
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_key_fingerprint=$(_fingerprint "$OCI_CLI_KEY") |
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_sig_host="dns.$OCI_CLI_REGION.oraclecloud.com" |
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_sig_keyId="$OCI_CLI_TENANCY/$OCI_CLI_USER/$_key_fingerprint" |
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_sig_alg="rsa-sha256" |
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_sig_version="1" |
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_sig_now="$(LC_ALL=C \date -u "+%a, %d %h %Y %H:%M:%S GMT")" |
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_request_method=$(printf %s "$_sig_method" | _lower_case) |
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_curl_method=$(printf %s "$_sig_method" | _upper_case) |
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_request_target="(request-target): $_request_method $_sig_target" |
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_date_header="date: $_sig_now" |
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_host_header="host: $_sig_host" |
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_string_to_sign="$_request_target\n$_date_header\n$_host_header" |
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_sig_headers="(request-target) date host" |
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if [ "$_sig_body" ]; then |
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_secure_debug3 _sig_body "$_sig_body" |
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_sig_body_sha256="x-content-sha256: $(printf %s "$_sig_body" | _digest sha256)" |
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_sig_body_type="content-type: application/json" |
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_sig_body_length="content-length: ${#_sig_body}" |
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_string_to_sign="$_string_to_sign\n$_sig_body_sha256\n$_sig_body_type\n$_sig_body_length" |
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_sig_headers="$_sig_headers x-content-sha256 content-type content-length" |
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fi |
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_tmp_file=$(_mktemp) |
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if [ -f "$_tmp_file" ]; then |
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printf '%s' "$OCI_CLI_KEY" >"$_tmp_file" |
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_signature=$(printf '%b' "$_string_to_sign" | _sign "$_tmp_file" sha256 | tr -d '\r\n') |
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rm -f "$_tmp_file" |
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fi |
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_signed_header="Authorization: Signature version=\"$_sig_version\",keyId=\"$_sig_keyId\",algorithm=\"$_sig_alg\",headers=\"$_sig_headers\",signature=\"$_signature\"" |
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_secure_debug3 _signed_header "$_signed_header" |
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if [ "$_curl_method" = "GET" ]; then |
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export _H1="$_date_header" |
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export _H2="$_signed_header" |
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_response="$(_get "https://${_sig_host}${_sig_target}")" |
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elif [ "$_curl_method" = "PATCH" ]; then |
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export _H1="$_date_header" |
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export _H2="$_sig_body_sha256" |
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export _H3="$_sig_body_type" |
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export _H4="$_sig_body_length" |
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export _H5="$_signed_header" |
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_response="$(_post "$_sig_body" "https://${_sig_host}${_sig_target}" "" "PATCH")" |
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else |
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_err "Unable to process method: $_curl_method." |
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fi |
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_ret="$?" |
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if [ "$_return_field" ]; then |
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_response="$(echo "$_response" | sed 's/\\\"//g'))" |
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_return=$(echo "${_response}" | _egrep_o "\"$_return_field\"\\s*:\\s*\"[^\"]*\"" | _head_n 1 | cut -d : -f 2 | tr -d "\"") |
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else |
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_return="$_response" |
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fi |
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printf "%s" "$_return" |
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return $_ret |
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} |
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# file key [section] |
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_readini() { |
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_file="$1" |
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_key="$2" |
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_section="${3:-DEFAULT}" |
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_start_n=$(grep -n '\['"$_section"']' "$_file" | cut -d : -f 1) |
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_debug3 _start_n "$_start_n" |
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if [ -z "$_start_n" ]; then |
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_err "Can not find section: $_section" |
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return 1 |
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fi |
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_start_nn=$(_math "$_start_n" + 1) |
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_debug3 "_start_nn" "$_start_nn" |
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_left="$(sed -n "${_start_nn},99999p" "$_file")" |
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_debug3 _left "$_left" |
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_end="$(echo "$_left" | grep -n "^\[" | _head_n 1)" |
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_debug3 "_end" "$_end" |
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if [ "$_end" ]; then |
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_end_n=$(echo "$_end" | cut -d : -f 1) |
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_debug3 "_end_n" "$_end_n" |
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_seg_n=$(echo "$_left" | sed -n "1,${_end_n}p") |
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else |
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_seg_n="$_left" |
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fi |
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_debug3 "_seg_n" "$_seg_n" |
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_lineini="$(echo "$_seg_n" | grep "^ *$_key *= *")" |
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_inivalue="$(printf "%b" "$(eval "echo $_lineini | sed \"s/^ *${_key} *= *//g\"")")" |
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_debug2 _inivalue "$_inivalue" |
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echo "$_inivalue" |
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} |
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