From e6b3e42d613c018897427d3e154fc00d0a12caa9 Mon Sep 17 00:00:00 2001 From: Gary McGregor Date: Mon, 23 Sep 2024 22:21:37 -0500 Subject: [PATCH] Adding omg.lol DNS API --- dnsapi/dns_omglol.sh | 363 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 363 insertions(+) create mode 100644 dnsapi/dns_omglol.sh diff --git a/dnsapi/dns_omglol.sh b/dnsapi/dns_omglol.sh new file mode 100644 index 00000000..7f62b2d8 --- /dev/null +++ b/dnsapi/dns_omglol.sh @@ -0,0 +1,363 @@ +#!/usr/bin/env sh +# shellcheck disable=SC2034 +dns_myapi_info='omg.lol + Based on the omg.lol API, defined at https://api.omg.lol/ +Domains: omg.lol +Site: github.com/acmesh-official/acme.sh/wiki/DNS-API-Dev-Guide +Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi#dns_duckdns +Options: + omglolapikey API Key from omg.lol. This is accesible from the bottom of the account page at https://home.omg.lol/account + omgloladdress This is your omg.lol address, without the preceding @ - you can see your list on your dashboard at https://home.omg.lol/dashboard +Issues: github.com/acmesh-official/acme.sh +Author: @Kholin +' + +#returns 0 means success, otherwise error. + +######## Public functions ##################### + +# Please Read this guide first: https://github.com/acmesh-official/acme.sh/wiki/DNS-API-Dev-Guide + +#Usage: dns_myapi_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs" +dns_omglol_add() { + fulldomain=$1 + txtvalue=$2 + omglol_apikey="${omglol_apikey:-$(_readaccountconf_mutable omglol_apikey)}" + omglol_address="${omglol_address:-$(_readaccountconf_mutable omglol_address)}" + + # As omg.lol includes a leading @ for their addresses, pre-strip this before save + omglol_address="$(echo "$omglol_address" | tr -d '@')" + + _saveaccountconf_mutable omglol_apikey "$omglol_apikey" + _saveaccountconf_mutable omglol_address "$omglol_address" + + _info "Using omg.lol." + _debug "Function" "dns_omglol_add()" + _debug "Full Domain Name" "$fulldomain" + _debug "txt Record Value" "$txtvalue" + _secure_debug "omg.lol API key" "$omglol_apikey" + _debug "omg.lol Address" "$omglol_address" + + omglol_validate "$omglol_apikey" "$omglol_address" "$fulldomain" + + dnsName=$(_getDnsRecordName "$fulldomain" "$omglol_address") + authHeader="$(_createAuthHeader "$omglol_apikey")" + + _debug2 " dns_omglol_add(): Address" "$dnsName" + + omglol_add "$omglol_address" "$authHeader" "$dnsName" "$txtvalue" + +} + +#Usage: fulldomain txtvalue +#Remove the txt record after validation. +dns_omglol_rm() { + fulldomain=$1 + txtvalue=$2 + omglol_apikey="${omglol_apikey:-$(_readaccountconf_mutable omglol_apikey)}" + omglol_address="${omglol_address:-$(_readaccountconf_mutable omglol_address)}" + + # As omg.lol includes a leading @ for their addresses, strip this in case provided + omglol_address="$(echo "$omglol_address" | tr -d '@')" + + _info "Using omg.lol" + _debug fulldomain "$fulldomain" + _secure_debug ApiKey "$omglol_apikey" + _debug address "$omglol_address" + + omglol_validate "$omglol_apikey" "$omglol_address" "$fulldomain" + + dnsName=$(_getDnsRecordName "$fulldomain" "$omglol_address") + authHeader="$(_createAuthHeader "$omglol_apikey")" + + omglol_delete "$omglol_address" "$authHeader" "$dnsName" "$txtvalue" +} + +#################### Private functions below ################################## +# Check that the minimum requirements are present. Close ungracefully if not +omglol_validate() { + omglol_apikey=$1 + omglol_address=$2 + fulldomain=$3 + + if [ "" = "$omglol_address" ]; then + _err "omg.lol base address not provided. Exiting" + exit 1 + fi + + if [ "" = "$omglol_apikey" ]; then + _err "omg.lol API key not provided. Exiting" + exit 1 + fi + + _endswith "$fulldomain" "omg.lol" + if [ ! $? ]; then + _err "Domain name requested is not under omg.lol" + exit 1 + fi + + _endswith "$fulldomain" "$omglol_address.omg.lol" + if [ ! $? ]; then + _err "Domain name is not a subdomain of provided omg.lol address $omglol_address" + exit 1 + fi + + _debug "omglol_validate(): Required environment parameters are all present" +} + +# Add (or modify) an entry for a new ACME query +omglol_add() { + address=$1 + authHeader=$2 + dnsName=$3 + txtvalue=$4 + + _info " Creating DNS entry for $dnsName" + _debug2 " omglol_add()" + _debug2 " omg.lol Address: " "$address" + _secure_debug2 " omg.lol authorization header: " "$authHeader" + _debug2 " Full Domain name:" "$dnsName.$address.omg.lol" + _debug2 " TXT value to set:" "$txtvalue" + + export _H1="$authHeader" + + endpoint="https://api.omg.lol/address/$address/dns" + _debug2 " Endpoint" "$endpoint" + + payload='{"type": "TXT", "name":"'"$dnsName"'", "data":"'"$txtvalue"'", "ttl":30}' + _debug2 " Payload" "$payload" + + response=$(_post "$payload" "$endpoint" "" "POST" "application/json") + + omglol_validate_add "$response" "$dnsName.$address" "$txtvalue" +} + +omglol_validate_add() { + response=$1 + name=$2 + content=$3 + + _info " Validating DNS record addition" + _debug2 " omglol_validate_add()" + _debug2 " Response" "$response" + _debug2 " DNS Name" "$name" + _debug2 " DNS value" "$content" + + _jsonResponseCheck "$response" "success" "true" + if [ "1" = "$?" ]; then + _err "Response did not report success" + return 1 + fi + + _jsonResponseCheck "$response" "message" "Your DNS record was created successfully." + if [ "1" = "$?" ]; then + _err "Response message did not indicate DNS record was successfully created" + return 1 + fi + + _jsonResponseCheck "$response" "name" "$name" + if [ "1" = "$?" ]; then + _err "Response DNS Name did not match the response received" + return 1 + fi + + _jsonResponseCheck "$response" "content" "$content" + if [ "1" = "$?" ]; then + _err "Response DNS Name did not match the response received" + return 1 + fi + + _debug " Record Created successfully" + return 0 +} + +omglol_getRecords() { + address=$1 + authHeader=$2 + dnsName=$3 + txtValue=$4 + + _debug2 " omglol_getRecords()" + _debug2 " omg.lol Address: " "$address" + _secure_debug2 " omg.lol Auth Header: " "$authHeader" + _debug2 " omg.lol DNS name:" "$dnsName" + _debug2 " txt Value" "$txtValue" + + export _H1="$authHeader" + + endpoint="https://api.omg.lol/address/$address/dns" + _debug2 " Endpoint" "$endpoint" + + payload=$(_get "$endpoint") + + _debug2 " Received Payload:" "$payload" + + # Reformat the JSON to be more parseable + recordID=$(echo "$payload" | _stripWhitespace) + recordID=$(echo "$recordID" | _exposeJsonArray) + + # Now find the one with the right value, and caputre its ID + recordID=$(echo "$recordID" | grep -- "$txtValue" | grep -i -- "$dnsName.$address") + _getJsonElement "$recordID" "id" +} + +omglol_delete() { + address=$1 + authHeader=$2 + dnsName=$3 + txtValue=$4 + + _info " Deleting DNS entry for $dnsName with value $txtValue" + _debug2 " omglol_delete()" + _debug2 " omg.lol Address: " "$address" + _secure_debug2 " omg.lol Auth Header: " "$authHeader" + _debug2 " Full Domain name:" "$dnsName.$address.omg.lol" + _debug2 " txt Value" "$txtValue" + + record=$(omglol_getRecords "$address" "$authHeader" "$dnsName" "$txtvalue") + + endpoint="https://api.omg.lol/address/$address/dns/$record" + _debug2 " Endpoint" "$endpoint" + + export _H1="$authHeader" + output=$(_post "" "$endpoint" "" "DELETE") + + _debug2 " Response" "$output" + + omglol_validate_delete "$output" +} + +# Validate the response on request to delete. Confirm stastus is success and +# Message indicates deletion was successful +# Input: Response - HTTP response received from delete request +omglol_validate_delete() { + response=$1 + + _info " Validating DNS record deletion" + _debug2 " omglol_validate_delete()" + _debug " Response" "$response" + + _jsonResponseCheck "$output" "success" "true" + if [ "1" = "$?" ]; then + _err "Response did not report success" + return 1 + fi + + _jsonResponseCheck "$output" "message" "OK, your DNS record has been deleted." + if [ "1" = "$?" ]; then + _err "Response message did not indicate DNS record was successfully deleted" + return 1 + fi + + _info " Record deleted successfully" + return 0 +} + +########## Utility Functions ##################################### +# All utility functions only log at debug3 +_jsonResponseCheck() { + response=$1 + field=$2 + correct=$3 + + correct=$(echo "$correct" | _lower_case) + + _debug3 " jsonResponseCheck()" + _debug3 " Response to parse" "$response" + _debug3 " Field to get response from" "$field" + _debug3 " What is the correct response" "$correct" + + responseValue=$(_jsonGetLastResponse "$response" "$field") + + if [ "$responseValue" != "$correct" ]; then + _debug3 " Expected: $correct" + _debug3 " Actual: $responseValue" + return 1 + else + _debug3 " Matched: $responseValue" + fi + return 0 +} + +_jsonGetLastResponse() { + response=$1 + field=$2 + + _debug3 " jsonGetLastResponse()" + _debug3 " Response provided" "$response" + _debug3 " Field to get responses for" "$field" + responseValue=$(echo "$response" | grep -- "\"$field\"" | cut -f2 -d":") + + _debug3 " Response lines found:" "$responseValue" + + responseValue=$(echo "$responseValue" | sed 's/^ //g' | sed 's/^"//g' | sed 's/\\"//g') + responseValue=$(echo "$responseValue" | sed 's/,$//g' | sed 's/"$//g') + responseValue=$(echo "$responseValue" | _lower_case) + + _debug3 " Responses found" "$responseValue" + _debug3 " Response Selected" "$(echo "$responseValue" | tail -1)" + + echo "$responseValue" | tail -1 +} + +_stripWhitespace() { + tr -d '\n' | tr -d '\r' | tr -d '\t' | sed -r 's/ +/ /g' | sed 's/\\"//g' +} + +_exposeJsonArray() { + sed -r 's/.*\[//g' | tr '}' '|' | tr '{' '|' | sed 's/|, |/|/g' | tr '|' '\n' +} + +_getJsonElement() { + content=$1 + field=$2 + + # With a single JSON entry to parse, convert commas to newlines puts each element on + # its own line - which then allows us to just grep teh name, remove the key, and + # isolate the value + output=$(echo "$content" | tr ',' '\n' | grep -- "\"$field\":" | sed 's/.*: //g') + + _debug3 " String before unquoting: $output" + + _unquoteString "$output" +} + +_createAuthHeader() { + apikey=$1 + + authheader="Authorization: Bearer $apikey" + _secure_debug2 " Authorization Header" "$authheader" + echo "$authheader" +} + +_getDnsRecordName() { + fqdn=$1 + address=$2 + + echo "$fqdn" | sed 's/\.omg\.lol//g' | sed 's/\.'"$address"'$//g' +} + +_unquoteString() { + output=$1 + quotes=0 + + _startswith "$output" "\"" + if [ $? ]; then + quotes=$((quotes + 1)) + fi + + _endswith "$output" "\"" + if [ $? ]; then + quotes=$((quotes + 1)) + fi + + _debug3 " Original String: $output" + _debug3 " Quotes found: $quotes" + + if [ $((quotes)) -gt 1 ]; then + output=$(echo "$output" | sed 's/^"//g' | sed 's/"$//g') + _debug3 " Quotes removed: $output" + fi + + echo "$output" +}