From ffc82958ede264aa62d8122f8a0722d0da648ea5 Mon Sep 17 00:00:00 2001
From: jbergner <jbergner@send.nrw>
Date: Fri, 17 Jan 2025 06:40:41 +0100
Subject: [PATCH] init

---
 .gitea/workflows/registry.yml | 51 ++++++++++++++++++
 Dockerfile                    | 10 ++++
 go.mod                        |  3 ++
 main.go                       | 97 +++++++++++++++++++++++++++++++++++
 4 files changed, 161 insertions(+)
 create mode 100644 .gitea/workflows/registry.yml
 create mode 100644 Dockerfile
 create mode 100644 go.mod
 create mode 100644 main.go

diff --git a/.gitea/workflows/registry.yml b/.gitea/workflows/registry.yml
new file mode 100644
index 0000000..d609b9f
--- /dev/null
+++ b/.gitea/workflows/registry.yml
@@ -0,0 +1,51 @@
+name: release-tag
+on:
+  push:
+    branches:
+      - 'main'
+jobs:
+  release-image:
+    runs-on: ubuntu-latest
+    env:
+      DOCKER_ORG: sendnrw
+      DOCKER_LATEST: latest
+      RUNNER_TOOL_CACHE: /toolcache
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker BuildX
+        uses: docker/setup-buildx-action@v2
+        with: # replace it with your local IP
+          config-inline: |
+            [registry."git.send.nrw"] 
+              http = true
+              insecure = true                                    
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v2
+        with:
+          registry: git.send.nrw # replace it with your local IP
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+          
+      - name: Get Meta
+        id: meta
+        run: |
+          echo REPO_NAME=$(echo ${GITHUB_REPOSITORY} | awk -F"/" '{print $2}') >> $GITHUB_OUTPUT
+          echo REPO_VERSION=$(git describe --tags --always | sed 's/^v//') >> $GITHUB_OUTPUT                                    
+
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: |
+            linux/amd64                                               
+          push: true
+          tags: | # replace it with your local IP and tags
+            git.send.nrw/${{ env.DOCKER_ORG }}/${{ steps.meta.outputs.REPO_NAME }}:${{ steps.meta.outputs.REPO_VERSION }}
+            git.send.nrw/${{ env.DOCKER_ORG }}/${{ steps.meta.outputs.REPO_NAME }}:${{ env.DOCKER_LATEST }}
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..21b3940
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,10 @@
+FROM golang:1.23.3
+RUN mkdir /data
+COPY data/* /data
+WORKDIR /app
+COPY go.mod go.sum ./
+RUN go mod download
+COPY *.go ./
+RUN CGO_ENABLED=0 GOOS=linux go build -o /go-ddns
+EXPOSE 8080
+CMD ["/go-ddns"]
\ No newline at end of file
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..41acdc3
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module git.send.nrw/sendnrw/dyndns_container
+
+go 1.23.1
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..e9c7bf9
--- /dev/null
+++ b/main.go
@@ -0,0 +1,97 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"time"
+)
+
+func main() {
+
+	DEV_TESTING := os.Getenv("DYNDNS_URL")
+
+	DYNDNS_URL := os.Getenv("DYNDNS_URL")
+	DYNDNS_ADDRESS := os.Getenv("DYNDNS_ADDRESS")
+	DYNDNS_IPv4 := os.Getenv("DYNDNS_IPv4")
+	DYNDNS_IPv6 := os.Getenv("DYNDNS_IPv6")
+	DYNDNS_USERNAME := os.Getenv("DYNDNS_USERNAME")
+	DYNDNS_PASSWORD := os.Getenv("DYNDNS_PASSWORD")
+
+	DYNDNS_IPv4_ADDR_RESOLVER := os.Getenv("DYNDNS_IPv4_ADDR_RESOLVER")
+	DYNDNS_IPv6_ADDR_RESOLVER := os.Getenv("DYNDNS_IPv6_ADDR_RESOLVER")
+
+	if DYNDNS_IPv4_ADDR_RESOLVER == "" {
+		DYNDNS_IPv4_ADDR_RESOLVER = "https://dns.hilden.info/ip"
+	}
+
+	if DYNDNS_IPv6_ADDR_RESOLVER == "" {
+		DYNDNS_IPv6_ADDR_RESOLVER = "https://dns.hilden.info/ip"
+	}
+
+	if DEV_TESTING == "" {
+		DYNDNS_URL = "https://dns.hilden.info"
+		DYNDNS_ADDRESS = "devtest.dns.hilden.info"
+		DYNDNS_IPv4 = "9.8.7.6"
+		DYNDNS_IPv6 = "2001:db8::1"
+		DYNDNS_USERNAME = "admin"
+		DYNDNS_PASSWORD = "password"
+		DYNDNS_IPv4_ADDR_RESOLVER = "https://dns.hilden.info/ip"
+		DYNDNS_IPv6_ADDR_RESOLVER = "https://dns.hilden.info/ip"
+	}
+
+	for {
+		/*GetIPv4*/
+		respipv4, err := http.Get(DYNDNS_IPv4_ADDR_RESOLVER)
+		if err != nil {
+			fmt.Println("Fehler beim Abrufen der URL:", DYNDNS_IPv4_ADDR_RESOLVER, err)
+		} else {
+			body, err := io.ReadAll(respipv4.Body)
+			if err != nil {
+				fmt.Println("Fehler beim Lesen des Antwort-Bodys:", err)
+			} else {
+				// Antwort-Inhalt ausgeben
+				DYNDNS_IPv4 = string(body)
+				fmt.Println("Statuscode:", respipv4.StatusCode)
+				fmt.Println("Antwort-Inhalt:", string(body))
+			}
+			respipv4.Body.Close()
+		}
+
+		/*GetIPv6*/
+		respipv6, err := http.Get(DYNDNS_IPv6_ADDR_RESOLVER)
+		if err != nil {
+			fmt.Println("Fehler beim Abrufen der URL:", DYNDNS_IPv6_ADDR_RESOLVER, err)
+		} else {
+			body, err := io.ReadAll(respipv6.Body)
+			if err != nil {
+				fmt.Println("Fehler beim Lesen des Antwort-Bodys:", err)
+			} else {
+				// Antwort-Inhalt ausgeben
+				DYNDNS_IPv6 = string(body)
+				fmt.Println("Statuscode:", respipv6.StatusCode)
+				fmt.Println("Antwort-Inhalt:", string(body))
+			}
+			respipv6.Body.Close()
+		}
+
+		/**/
+		url := DYNDNS_URL + "/?DDNS=" + DYNDNS_ADDRESS + "&IP=" + DYNDNS_IPv4 + "&IPv6=" + DYNDNS_IPv6 + "&USER=" + DYNDNS_USERNAME + "&TOKEN=" + DYNDNS_PASSWORD
+		resp, err := http.Get(url)
+		if err != nil {
+			fmt.Println("Fehler beim Abrufen der URL:", DYNDNS_IPv6_ADDR_RESOLVER, err)
+		} else {
+			body, err := io.ReadAll(resp.Body)
+			if err != nil {
+				fmt.Println("Fehler beim Lesen des Antwort-Bodys:", err)
+			} else {
+				// Antwort-Inhalt ausgeben
+				fmt.Println("Statuscode:", resp.StatusCode)
+				fmt.Println("Antwort-Inhalt:", string(body))
+			}
+			resp.Body.Close()
+		}
+		time.Sleep(5 * time.Minute)
+	}
+}