first commit

.gitignore

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+.env
+dist/

Dockerfile

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+FROM golang:1.25-alpine AS builder
+WORKDIR /app
+COPY main.go webhook.go config.go .
+RUN go mod init varde && \
+    go mod tidy && \
+    CGO_ENABLED=0 GOOS=linux go build -o server main.go webhook.go config.go
+
+FROM scratch
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=builder /app/server /server
+CMD ["/server"]

README.md

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+# homedeploy
+Homedeploy is a small webservice written in go.
+It's intended to just serve static sites, sutch as generated by goHugo.
+
+## Features
+### Serve static files
+The main usecase is serving static files.
+Just drop your files into the defined folder and start the service.
+
+### Serve WDK Keys for openPGP
+The second option is to serve WDK Keys fro openPGP. The domain path is already hardcoded, so you just have to add your hash keys.
+
+## Deploy the service
+The intended way to reploy the service is with docker compose.
+
+### compose.yml
+```bash
+services:
+  homepage:
+    container_name: homepage
+    image: git.lojr.de/ilvoen/heimdeploy:latest
+    ports:
+      - ports 80:80
+    env_file: .env
+    volumes:
+      - ./content:/app/content
+      - ./keys:/app/keys:ro
+    restart: unless-stopped
+```
+
+### .env
+```bash
+CONTENT_DIR=/app/content
+KEYS_DIR=/app/keys
+PORT=80
+ENABLE_WEBHOOK=false
+REPO_URL=
+REPO_TOKEN=<dein-token>
+WEBHOOK_SECRET=<dein-secret>
+```

build.sh

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+#!/bin/bash
+set -e
+
+VERSION=${1:?"Usage: ./build.sh <version>  e.g. ./build.sh 1.0.0"}
+REGISTRY="git.lojr.de/ilvoen/varde"
+PLATFORMS="linux/amd64,linux/arm64,linux/arm/v7,linux/386"
+
+echo "→ Building static variant..."
+docker buildx build \
+  --platform ${PLATFORMS} \
+  -f Dockerfile \
+  -t ${REGISTRY}:${VERSION} \
+  -t ${REGISTRY}:latest \
+  --push .
+
+echo "✓ Done! Pushed:"
+echo "  ${REGISTRY}:${VERSION} + latest"

compose.yml

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+services:
+  homepage:
+    container_name: homepage
+    image: git.lojr.de/ilvoen/varde:latest
+    ports:
+      - 80:80
+    env_file: .env
+    volumes:
+      - ./content:/app/content
+      - ./keys:/app/keys:ro
+    restart: unless-stopped

config.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"flag"
+	"os"
+)
+
+type Config struct {
+	ContentDir    string
+	KeysDir       string
+	Port          string
+	RepoURL       string
+	RepoToken     string
+	WebhookSecret string
+	NtfyURL       string
+	NtfyTopic     string
+	EnableWebhook bool
+}
+
+func loadConfig() *Config {
+	cfg := &Config{}
+
+	flag.StringVar(&cfg.ContentDir, "content-dir", envOrDefault("CONTENT_DIR", "./content"), "directory to serve as content")
+	flag.StringVar(&cfg.KeysDir, "keys-dir", envOrDefault("KEYS_DIR", "./keys"), "directory to serve as WKD keys")
+	flag.StringVar(&cfg.Port, "port", envOrDefault("PORT", "80"), "port to listen on")
+	flag.StringVar(&cfg.RepoURL, "repo-url", envOrDefault("REPO_URL", ""), "git repo URL for webhook auto-update")
+	flag.StringVar(&cfg.RepoToken, "repo-token", envOrDefault("REPO_TOKEN", ""), "git repo access token")
+	flag.StringVar(&cfg.WebhookSecret, "webhook-secret", envOrDefault("WEBHOOK_SECRET", ""), "HMAC secret for webhook validation")
+	flag.StringVar(&cfg.NtfyURL, "ntfy-url", envOrDefault("NTFY_URL", ""), "ntfy server URL for failure notifications")
+	flag.StringVar(&cfg.NtfyTopic, "ntfy-topic", envOrDefault("NTFY_TOPIC", ""), "ntfy topic for failure notifications")
+	flag.BoolVar(&cfg.EnableWebhook, "webhook", envOrDefaultBool("ENABLE_WEBHOOK", false), "enable git-webhook auto-update feature")
+
+	flag.Parse()
+	return cfg
+}
+
+func envOrDefault(key, def string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return def
+}
+
+func envOrDefaultBool(key string, def bool) bool {
+	v := os.Getenv(key)
+	if v == "" {
+		return def
+	}
+	return v == "true" || v == "1"
+}

env.example

@@ -0,0 +1,9 @@
+CONTENT_DIR=/app/content
+KEYS_DIR=/app/keys
+PORT=80
+ENABLE_WEBHOOK=false
+REPO_URL=
+REPO_TOKEN=
+WEBHOOK_SECRET=
+NTFY_URL=https://
+NTFY_TOPIC=varde-webhook

go.mod

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+module varde
+
+go 1.25.0
+
+require (
+	github.com/go-git/go-git/v5 v5.19.1
+	github.com/gorilla/mux v1.8.1
+)
+
+require (
+	dario.cat/mergo v1.0.0 // indirect
+	github.com/Microsoft/go-winio v0.6.2 // indirect
+	github.com/ProtonMail/go-crypto v1.1.6 // indirect
+	github.com/cloudflare/circl v1.6.3 // indirect
+	github.com/cyphar/filepath-securejoin v0.6.1 // indirect
+	github.com/emirpasic/gods v1.18.1 // indirect
+	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
+	github.com/go-git/go-billy/v5 v5.9.0 // indirect
+	github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 // indirect
+	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
+	github.com/kevinburke/ssh_config v1.2.0 // indirect
+	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
+	github.com/pjbgf/sha1cd v0.6.0 // indirect
+	github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 // indirect
+	github.com/skeema/knownhosts v1.3.1 // indirect
+	github.com/xanzy/ssh-agent v0.3.3 // indirect
+	golang.org/x/crypto v0.50.0 // indirect
+	golang.org/x/net v0.53.0 // indirect
+	golang.org/x/sys v0.43.0 // indirect
+	golang.org/x/time v0.15.0 // indirect
+	gopkg.in/warnings.v0 v0.1.2 // indirect
+)

go.sum

@@ -0,0 +1,108 @@
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+golang.org/x/text v0.36.0/go.mod h1:NIdBknypM8iqVmPiuco0Dh6P5Jcdk8lJL0CUebqK164=
+golang.org/x/time v0.15.0 h1:bbrp8t3bGUeFOx08pvsMYRTCVSMk89u4tKbNOZbp88U=
+golang.org/x/time v0.15.0/go.mod h1:Y4YMaQmXwGQZoFaVFk4YpCt4FLQMYKZe9oeV/f4MSno=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME=
+gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -0,0 +1,121 @@
+package main
+
+import (
+	"log"
+	"net/http"
+	"os"
+	"strings"
+	"time"
+	"context"
+	"os/signal"
+	"syscall"
+
+	"github.com/gorilla/mux"
+	"golang.org/x/time/rate"
+)
+
+func noListing(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
+		if strings.HasSuffix(req.URL.Path, "/") {
+			http.NotFound(w, req)
+			return
+		}
+		next.ServeHTTP(w, req)
+	})
+}
+
+func securityHeaders(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
+		w.Header().Set("X-Content-Type-Options", "nosniff")
+		w.Header().Set("X-Frame-Options", "DENY")
+		w.Header().Set("Referrer-Policy", "strict-origin-when-cross-origin")
+		next.ServeHTTP(w, req)
+	})
+}
+
+var webhookLimiter = rate.NewLimiter(rate.Every(10*time.Second), 1)
+
+func rateLimit(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
+		if !webhookLimiter.Allow() {
+			log.Println("webhook rate limit exceeded")
+			w.WriteHeader(http.StatusTooManyRequests)
+			return
+		}
+		next.ServeHTTP(w, req)
+	})
+}
+
+func wkdHeaders(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
+		w.Header().Set("Content-Type", "application/octet-stream")
+		w.Header().Set("Access-Control-Allow-Origin", "*")
+		next.ServeHTTP(w, req)
+	})
+}
+
+func healthHandler(w http.ResponseWriter, req *http.Request) {
+	w.WriteHeader(http.StatusOK)
+	w.Write([]byte("ok"))
+}
+
+func main() {
+	cfg := loadConfig()
+
+	if cfg.EnableWebhook {
+		cloneOrOpen(cfg)
+	}
+
+	contentFS	:= http.FileServer(http.Dir(cfg.ContentDir))
+	keysFS 		:= http.FileServer(http.Dir(cfg.KeysDir))
+
+
+	r := mux.NewRouter()
+	r.Use(securityHeaders)
+
+	
+	api := r.PathPrefix("/api/").Subrouter()
+	api.HandleFunc("/healthz", healthHandler).Methods("GET", "HEAD")
+
+	if cfg.EnableWebhook {
+		r.Handle("/webhook", rateLimit(webhookHandler(cfg))).Methods("POST")
+	}
+
+	// Eigener Bereich für .well-known: kein Listing, WKD-Header
+	wkd := r.PathPrefix("/.well-known/").Subrouter()
+	wkd.Use(noListing)
+	wkd.Use(wkdHeaders)
+	wkd.PathPrefix("/").Handler(keysFS)
+
+	// Alles andere: normaler Fileserver, Listing erlaubt, hier kommt später zB /downloads/ rein
+	r.PathPrefix("/").Handler(contentFS)
+
+	srv := &http.Server{
+		Addr:    ":" + cfg.Port,
+		Handler: r,
+	}
+
+	// Server in eigener Goroutine starten, damit main() weiterlaufen kann
+	go func() {
+		log.Printf("Listening on :%s, content=%s keys=%s (webhook: %v)", cfg.Port, cfg.ContentDir, cfg.KeysDir, cfg.EnableWebhook)
+		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			log.Fatalf("server error: %v", err)
+		}
+	}()
+
+	// Auf SIGTERM/SIGINT warten
+	stop := make(chan os.Signal, 1)
+	signal.Notify(stop, syscall.SIGTERM, syscall.SIGINT)
+	<-stop
+
+	log.Println("Shutdown signal received, draining connections...")
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	if err := srv.Shutdown(ctx); err != nil {
+		log.Printf("graceful shutdown failed: %v", err)
+	} else {
+		log.Println("Server shut down cleanly")
+	}
+}

webhook.go

@@ -0,0 +1,127 @@
+package main
+
+import (
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/hex"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"bytes"
+	"fmt"
+	"time"
+
+	"github.com/go-git/go-git/v5"
+	githttp "github.com/go-git/go-git/v5/plumbing/transport/http"
+)
+
+var repo *git.Repository
+
+func cloneOrOpen(cfg *Config) {
+	auth := &githttp.BasicAuth{
+		Username: "x-token",
+		Password: cfg.RepoToken,
+	}
+
+	if _, err := os.Stat(cfg.ContentDir + "/.git"); os.IsNotExist(err) {
+		log.Println("Cloning repo...")
+		r, err := git.PlainClone(cfg.ContentDir, false, &git.CloneOptions{
+			URL:  cfg.RepoURL,
+			Auth: auth,
+		})
+		if err != nil {
+			notifyFailure(cfg, "clone failed", err)    // NEU
+			log.Fatalf("clone failed: %v", err)
+		}
+		repo = r
+	} else {
+		log.Println("Opening existing repo...")
+		r, err := git.PlainOpen(cfg.ContentDir)
+		if err != nil {
+			notifyFailure(cfg, "open failed", err)     // NEU
+			log.Fatalf("open failed: %v", err)
+		}
+		repo = r
+	}
+}
+
+func pull(cfg *Config) error {
+	w, err := repo.Worktree()
+	if err != nil {
+		return err
+	}
+	err = w.Pull(&git.PullOptions{
+		Auth: &githttp.BasicAuth{
+			Username: "x-token",
+			Password: cfg.RepoToken,
+		},
+	})
+	if err == git.NoErrAlreadyUpToDate {
+		return nil
+	}
+	return err
+}
+
+func validateSignature(secret, signature string, body []byte) bool {
+	mac := hmac.New(sha256.New, []byte(secret))
+	mac.Write(body)
+	expected := hex.EncodeToString(mac.Sum(nil))
+	return hmac.Equal([]byte(expected), []byte(signature))
+}
+
+func webhookHandler(cfg *Config) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		body, err := io.ReadAll(r.Body)
+		if err != nil {
+			w.WriteHeader(http.StatusBadRequest)
+			return
+		}
+
+		sig := r.Header.Get("X-Gitea-Signature")
+		if !validateSignature(cfg.WebhookSecret, sig, body) {
+			log.Println("invalid webhook signature")
+			w.WriteHeader(http.StatusUnauthorized)
+			return
+		}
+
+		if err := pull(cfg); err != nil {
+			notifyFailure(cfg, "pull failed", err)    // NEU
+			log.Printf("pull failed: %v", err)
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+
+		log.Println("pulled new content")
+		w.WriteHeader(http.StatusOK)
+	}
+}
+
+func notifyFailure(cfg *Config, context string, err error) {
+	if cfg.NtfyURL == "" || cfg.NtfyTopic == "" {
+		return
+	}
+
+	msg := fmt.Sprintf("%s: %v", context, err)
+	url := fmt.Sprintf("%s/%s", cfg.NtfyURL, cfg.NtfyTopic)
+
+	req, reqErr := http.NewRequest("POST", url, bytes.NewBufferString(msg))
+	if reqErr != nil {
+		log.Printf("ntfy request build failed: %v", reqErr)
+		return
+	}
+	req.Header.Set("Title", "Varde Webhook Failure")
+	req.Header.Set("Priority", "high")
+
+	client := &http.Client{Timeout: 5 * time.Second}
+	resp, sendErr := client.Do(req)
+	if sendErr != nil {
+		log.Printf("ntfy notification failed: %v", sendErr)
+		return
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= 300 {
+		log.Printf("ntfy notification returned status %d", resp.StatusCode)
+	}
+}