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Merge pull request #5301 from as-kholin/dns_omglol
Merge pull request #5301 from as-kholin/dns_omglol
Adding omg.lol DNS APIpull/3205/merge
neil
3 months ago
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GitHub
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1 changed files with 395 additions and 0 deletions
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#!/usr/bin/env sh |
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# shellcheck disable=SC2034 |
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dns_myapi_info='omg.lol |
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Based on the omg.lol API, defined at https://api.omg.lol/ |
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Domains: omg.lol |
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Site: github.com/acmesh-official/acme.sh/wiki/DNS-API-Dev-Guide |
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Docs: github.com/acmesh-official/acme.sh/wiki/dnsapi#dns_duckdns |
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Options: |
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OMG_ApiKey API Key from omg.lol. This is accesible from the bottom of the account page at https://home.omg.lol/account |
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OMG_Address This is your omg.lol address, without the preceding @ - you can see your list on your dashboard at https://home.omg.lol/dashboard |
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Issues: github.com/acmesh-official/acme.sh |
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Author: @Kholin <kholin+acme.omglolapi@omg.lol> |
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' |
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#returns 0 means success, otherwise error. |
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######## Public functions ##################### |
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# Please Read this guide first: https://github.com/acmesh-official/acme.sh/wiki/DNS-API-Dev-Guide |
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#Usage: dns_myapi_add _acme-challenge.www.domain.com "XKrxpRBosdIKFzxW_CT3KLZNf6q0HG9i01zxXp5CPBs" |
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dns_omglol_add() { |
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fulldomain=$1 |
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txtvalue=$2 |
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OMG_ApiKey="${OMG_ApiKey:-$(_readaccountconf_mutable OMG_ApiKey)}" |
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OMG_Address="${OMG_Address:-$(_readaccountconf_mutable OMG_Address)}" |
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# As omg.lol includes a leading @ for their addresses, pre-strip this before save |
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OMG_Address="$(echo "$OMG_Address" | tr -d '@')" |
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_saveaccountconf_mutable OMG_ApiKey "$OMG_ApiKey" |
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_saveaccountconf_mutable OMG_Address "$OMG_Address" |
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_info "Using omg.lol." |
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_debug "Function" "dns_omglol_add()" |
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_debug "Full Domain Name" "$fulldomain" |
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_debug "txt Record Value" "$txtvalue" |
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_secure_debug "omg.lol API key" "$OMG_ApiKey" |
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_debug "omg.lol Address" "$OMG_Address" |
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omg_validate "$OMG_ApiKey" "$OMG_Address" "$fulldomain" |
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if [ ! $? ]; then |
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return 1 |
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fi |
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dnsName=$(_getDnsRecordName "$fulldomain" "$OMG_Address") |
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authHeader="$(_createAuthHeader "$OMG_ApiKey")" |
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_debug2 "dns_omglol_add(): Address" "$dnsName" |
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omg_add "$OMG_Address" "$authHeader" "$dnsName" "$txtvalue" |
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} |
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#Usage: fulldomain txtvalue |
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#Remove the txt record after validation. |
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dns_omglol_rm() { |
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fulldomain=$1 |
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txtvalue=$2 |
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OMG_ApiKey="${OMG_ApiKey:-$(_readaccountconf_mutable OMG_ApiKey)}" |
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OMG_Address="${OMG_Address:-$(_readaccountconf_mutable OMG_Address)}" |
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# As omg.lol includes a leading @ for their addresses, strip this in case provided |
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OMG_Address="$(echo "$OMG_Address" | tr -d '@')" |
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_info "Using omg.lol" |
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_debug "Function" "dns_omglol_rm()" |
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_debug "Full Domain Name" "$fulldomain" |
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_debug "txt Record Value" "$txtvalue" |
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_secure_debug "omg.lol API key" "$OMG_ApiKey" |
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_debug "omg.lol Address" "$OMG_Address" |
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omg_validate "$OMG_ApiKey" "$OMG_Address" "$fulldomain" |
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if [ ! $? ]; then |
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return 1 |
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fi |
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dnsName=$(_getDnsRecordName "$fulldomain" "$OMG_Address") |
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authHeader="$(_createAuthHeader "$OMG_ApiKey")" |
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omg_delete "$OMG_Address" "$authHeader" "$dnsName" "$txtvalue" |
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} |
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#################### Private functions below ################################## |
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# Check that the minimum requirements are present. Close ungracefully if not |
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omg_validate() { |
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omg_apikey=$1 |
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omg_address=$2 |
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fulldomain=$3 |
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_debug2 "Function" "dns_validate()" |
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_secure_debug2 "omg.lol API key" "$omg_apikey" |
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_debug2 "omg.lol Address" "$omg_address" |
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_debug2 "Full Domain Name" "$fulldomain" |
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if [ "" = "$omg_address" ]; then |
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_err "omg.lol base address not provided. Exiting" |
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return 1 |
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fi |
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if [ "" = "$omg_apikey" ]; then |
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_err "omg.lol API key not provided. Exiting" |
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return 1 |
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fi |
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_endswith "$fulldomain" "omg.lol" |
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if [ ! $? ]; then |
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_err "Domain name requested is not under omg.lol" |
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return 1 |
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fi |
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_endswith "$fulldomain" "$omg_address.omg.lol" |
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if [ ! $? ]; then |
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_err "Domain name is not a subdomain of provided omg.lol address $omg_address" |
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return 1 |
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fi |
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_debug "Required environment parameters are all present" |
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} |
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# Add (or modify) an entry for a new ACME query |
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omg_add() { |
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address=$1 |
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authHeader=$2 |
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dnsName=$3 |
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txtvalue=$4 |
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_info "Creating DNS entry for $dnsName" |
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_debug2 "omg_add()" |
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_debug2 "omg.lol Address: " "$address" |
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_secure_debug2 "omg.lol authorization header: " "$authHeader" |
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_debug2 "Full Domain name:" "$dnsName.$address.omg.lol" |
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_debug2 "TXT value to set:" "$txtvalue" |
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export _H1="$authHeader" |
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endpoint="https://api.omg.lol/address/$address/dns" |
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_debug2 "Endpoint" "$endpoint" |
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payload='{"type": "TXT", "name":"'"$dnsName"'", "data":"'"$txtvalue"'", "ttl":30}' |
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_debug2 "Payload" "$payload" |
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response=$(_post "$payload" "$endpoint" "" "POST" "application/json") |
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omg_validate_add "$response" "$dnsName.$address" "$txtvalue" |
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} |
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omg_validate_add() { |
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response=$1 |
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name=$2 |
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content=$3 |
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_debug "Validating DNS record addition" |
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_debug2 "omg_validate_add()" |
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_debug2 "Response" "$response" |
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_debug2 "DNS Name" "$name" |
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_debug2 "DNS value" "$content" |
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_jsonResponseCheck "$response" "success" "true" |
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if [ "1" = "$?" ]; then |
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_err "Response did not report success" |
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return 1 |
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fi |
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_jsonResponseCheck "$response" "message" "Your DNS record was created successfully." |
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if [ "1" = "$?" ]; then |
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_err "Response message did not indicate DNS record was successfully created" |
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return 1 |
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fi |
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_jsonResponseCheck "$response" "name" "$name" |
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if [ "1" = "$?" ]; then |
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_err "Response DNS Name did not match the response received" |
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return 1 |
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fi |
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_jsonResponseCheck "$response" "content" "$content" |
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if [ "1" = "$?" ]; then |
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_err "Response DNS Name did not match the response received" |
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return 1 |
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fi |
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_info "Record Created successfully" |
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return 0 |
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} |
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omg_getRecords() { |
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address=$1 |
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authHeader=$2 |
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dnsName=$3 |
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txtValue=$4 |
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_debug2 "omg_getRecords()" |
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_debug2 "omg.lol Address: " "$address" |
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_secure_debug2 "omg.lol Auth Header: " "$authHeader" |
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_debug2 "omg.lol DNS name:" "$dnsName" |
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_debug2 "txt Value" "$txtValue" |
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export _H1="$authHeader" |
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endpoint="https://api.omg.lol/address/$address/dns" |
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_debug2 "Endpoint" "$endpoint" |
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payload=$(_get "$endpoint") |
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_debug2 "Received Payload:" "$payload" |
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# Reformat the JSON to be more parseable |
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recordID=$(echo "$payload" | _stripWhitespace) |
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recordID=$(echo "$recordID" | _exposeJsonArray) |
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# Now find the one with the right value, and caputre its ID |
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recordID=$(echo "$recordID" | grep -- "$txtValue" | grep -i -- "$dnsName.$address") |
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_getJsonElement "$recordID" "id" |
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} |
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omg_delete() { |
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address=$1 |
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authHeader=$2 |
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dnsName=$3 |
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txtValue=$4 |
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_info "Deleting DNS entry for $dnsName with value $txtValue" |
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_debug2 "omg_delete()" |
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_debug2 "omg.lol Address: " "$address" |
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_secure_debug2 "omg.lol Auth Header: " "$authHeader" |
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_debug2 "Full Domain name:" "$dnsName.$address.omg.lol" |
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_debug2 "txt Value" "$txtValue" |
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record=$(omg_getRecords "$address" "$authHeader" "$dnsName" "$txtvalue") |
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if [ "" = "$record" ]; then |
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_err "DNS record $address not found!" |
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return 1 |
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fi |
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endpoint="https://api.omg.lol/address/$address/dns/$record" |
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_debug2 "Endpoint" "$endpoint" |
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export _H1="$authHeader" |
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output=$(_post "" "$endpoint" "" "DELETE") |
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_debug2 "Response" "$output" |
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omg_validate_delete "$output" |
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} |
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# Validate the response on request to delete. Confirm stastus is success and |
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# Message indicates deletion was successful |
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# Input: Response - HTTP response received from delete request |
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omg_validate_delete() { |
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response=$1 |
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_info "Validating DNS record deletion" |
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_debug2 "omg_validate_delete()" |
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_debug2 "Response" "$response" |
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_jsonResponseCheck "$output" "success" "true" |
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if [ "1" = "$?" ]; then |
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_err "Response did not report success" |
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return 1 |
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fi |
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_jsonResponseCheck "$output" "message" "OK, your DNS record has been deleted." |
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if [ "1" = "$?" ]; then |
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_err "Response message did not indicate DNS record was successfully deleted" |
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return 1 |
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fi |
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_info "Record deleted successfully" |
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return 0 |
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} |
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########## Utility Functions ##################################### |
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# All utility functions only log at debug3 |
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_jsonResponseCheck() { |
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response=$1 |
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field=$2 |
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correct=$3 |
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correct=$(echo "$correct" | _lower_case) |
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_debug3 "jsonResponseCheck()" |
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_debug3 "Response to parse" "$response" |
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_debug3 "Field to get response from" "$field" |
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_debug3 "What is the correct response" "$correct" |
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responseValue=$(_jsonGetLastResponse "$response" "$field") |
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if [ "$responseValue" != "$correct" ]; then |
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_debug3 "Expected: $correct" |
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_debug3 "Actual: $responseValue" |
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return 1 |
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else |
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_debug3 "Matched: $responseValue" |
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fi |
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return 0 |
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} |
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_jsonGetLastResponse() { |
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response=$1 |
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field=$2 |
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_debug3 "jsonGetLastResponse()" |
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_debug3 "Response provided" "$response" |
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_debug3 "Field to get responses for" "$field" |
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responseValue=$(echo "$response" | grep -- "\"$field\"" | cut -f2 -d":") |
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_debug3 "Response lines found:" "$responseValue" |
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responseValue=$(echo "$responseValue" | sed 's/^ //g' | sed 's/^"//g' | sed 's/\\"//g') |
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responseValue=$(echo "$responseValue" | sed 's/,$//g' | sed 's/"$//g') |
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responseValue=$(echo "$responseValue" | _lower_case) |
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_debug3 "Responses found" "$responseValue" |
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_debug3 "Response Selected" "$(echo "$responseValue" | tail -1)" |
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echo "$responseValue" | tail -1 |
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} |
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_stripWhitespace() { |
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tr -d '\n' | tr -d '\r' | tr -d '\t' | sed -r 's/ +/ /g' | sed 's/\\"//g' |
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} |
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_exposeJsonArray() { |
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sed -r 's/.*\[//g' | tr '}' '|' | tr '{' '|' | sed 's/|, |/|/g' | tr '|' '\n' |
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} |
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_getJsonElement() { |
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content=$1 |
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field=$2 |
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_debug3 "_getJsonElement()" |
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_debug3 "Input JSON element" "$content" |
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_debug3 "JSON element to isolate" "$field" |
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# With a single JSON entry to parse, convert commas to newlines puts each element on |
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# its own line - which then allows us to just grep teh name, remove the key, and |
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# isolate the value |
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output=$(echo "$content" | tr ',' '\n' | grep -- "\"$field\":" | sed 's/.*: //g') |
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_debug3 "String before unquoting: $output" |
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_unquoteString "$output" |
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} |
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_createAuthHeader() { |
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apikey=$1 |
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_debug3 "_createAuthHeader()" |
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_secure_debug3 "Provided API Key" "$apikey" |
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authheader="Authorization: Bearer $apikey" |
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_secure_debug3 "Authorization Header" "$authheader" |
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echo "$authheader" |
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} |
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_getDnsRecordName() { |
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fqdn=$1 |
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address=$2 |
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_debug3 "_getDnsRecordName()" |
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_debug3 "FQDN" "$fqdn" |
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_debug3 "omg.lol Address" "$address" |
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echo "$fqdn" | sed 's/\.omg\.lol//g' | sed 's/\.'"$address"'$//g' |
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} |
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_unquoteString() { |
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output=$1 |
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quotes=0 |
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_debug3 "_unquoteString()" |
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_debug3 "Possibly quoted string" "$output" |
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_startswith "$output" "\"" |
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if [ $? ]; then |
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quotes=$((quotes + 1)) |
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fi |
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_endswith "$output" "\"" |
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if [ $? ]; then |
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quotes=$((quotes + 1)) |
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fi |
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_debug3 "Original String: $output" |
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_debug3 "Quotes found: $quotes" |
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if [ $((quotes)) -gt 1 ]; then |
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output=$(echo "$output" | sed 's/^"//g' | sed 's/"$//g') |
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_debug3 "Quotes removed: $output" |
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fi |
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echo "$output" |
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} |
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