From efb7fae61a1b02e973a68f12a2178fb15a31f51a Mon Sep 17 00:00:00 2001
From: Eng Acs <me@engacs.pw>
Date: Sat, 16 Nov 2024 19:00:36 +0300
Subject: [PATCH] added 20i.com DNS

---
 dnsapi/dns_20i.sh | 125 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 dnsapi/dns_20i.sh

diff --git a/dnsapi/dns_20i.sh b/dnsapi/dns_20i.sh
new file mode 100644
index 00000000..e745463f
--- /dev/null
+++ b/dnsapi/dns_20i.sh
@@ -0,0 +1,125 @@
+#!/bin/bash
+
+# Helper function: Perform a GET request
+_get() {
+  local url=$1
+  curl -s -H "Authorization: Bearer $U20I_Bearer" "$url"
+}
+
+# Helper function: Perform a POST request
+_post() {
+  local data=$1
+  local url=$2
+  curl -s -X POST -H "Authorization: Bearer $U20I_Bearer" -H "Content-Type: application/json" -d "$data" "$url"
+}
+
+# Add a TXT record to 20i DNS
+dns_20i_add() {
+  local fulldomain=$1
+  local txtvalue=$2
+
+  if [ -z "$U20I_Bearer" ]; then
+    echo "Error: U20I_Bearer must be set in the environment."
+    return 1
+  fi
+
+  echo "Adding TXT record to 20i for domain: $fulldomain"
+
+  # Extract root domain and subdomain
+  local domain=$(echo "$fulldomain" | sed -r 's/^[^\.]+\.(.+)$/\1/')
+  local subdomain="_acme-challenge"
+
+  # Check if the TXT record already exists
+  local dns_response=$(_get "https://api.20i.com/domain/$domain/dns")
+  if echo "$dns_response" | jq -e '.error' > /dev/null 2>&1; then
+    local error_message=$(echo "$dns_response" | jq -r '.error.message')
+    echo "Error retrieving DNS records: $error_message"
+    return 1
+  fi
+
+  if echo "$dns_response" | jq -e ".records[] | select(.type == \"TXT\" and .host == \"$fulldomain\" and .txt == \"$txtvalue\")" > /dev/null 2>&1; then
+    echo "TXT record already exists. Skipping addition."
+    return 0
+  fi
+
+  # Construct payload for adding the TXT record
+  local payload=$(cat <<EOF
+{
+  "new": {
+    "TXT": [
+      {
+        "host": "$subdomain",
+        "txt": "$txtvalue"
+      }
+    ]
+  }
+}
+EOF
+  )
+
+  # Make API request to add the TXT record
+  local add_response=$(_post "$payload" "https://api.20i.com/domain/$domain/dns")
+  if echo "$add_response" | jq -e '.error' > /dev/null 2>&1; then
+    local error_message=$(echo "$add_response" | jq -r '.error.message')
+    echo "Error adding TXT record: $error_message"
+    return 1
+  fi
+
+  echo "TXT record added successfully."
+  return 0
+}
+
+# Remove a TXT record from 20i DNS
+dns_20i_rm() {
+  local fulldomain=$1
+  local txtvalue=$2
+
+  if [ -z "$U20I_Bearer" ]; then
+    echo "Error: U20I_Bearer must be set in the environment."
+    return 1
+  fi
+
+  echo "Removing TXT record from 20i for domain: $fulldomain"
+
+  # Extract root domain and subdomain
+  local domain=$(echo "$fulldomain" | sed -r 's/^[^\.]+\.(.+)$/\1/')
+
+  # Get existing DNS records
+  local dns_response=$(_get "https://api.20i.com/domain/$domain/dns")
+  if echo "$dns_response" | jq -e '.error' > /dev/null 2>&1; then
+    local error_message=$(echo "$dns_response" | jq -r '.error.message')
+    echo "Error retrieving DNS records: $error_message"
+    return 1
+  fi
+
+  # Find the record to delete by matching TXT record
+  local record_ref=$(echo "$dns_response" | jq -r \
+    ".records[] | select(.type == \"TXT\" and .host == \"$fulldomain\" and .txt == \"$txtvalue\") | .ref")
+
+  if [ -z "$record_ref" ] || [ "$record_ref" == "null" ]; then
+    echo "No matching TXT record found for removal."
+    return 1
+  fi
+
+  # Construct payload for deleting the TXT record
+  local payload=$(cat <<EOF
+{
+  "delete": [
+    "$record_ref"
+  ],
+  "conflictPolicy": "replace"
+}
+EOF
+  )
+
+  # Make API request to remove the TXT record
+  local remove_response=$(_post "$payload" "https://api.20i.com/domain/$domain/dns")
+  if echo "$remove_response" | jq -e '.error' > /dev/null 2>&1; then
+    local error_message=$(echo "$remove_response" | jq -r '.error.message')
+    echo "Error removing TXT record: $error_message"
+    return 1
+  fi
+
+  echo "TXT record removed successfully."
+  return 0
+}