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b1tsblog/cmd/blog/main.go
2025-05-04 17:10:38 +02:00

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package main
import (
"fmt"
"html/template"
"net/http"
"os"
"strconv"
"strings"
"time"
"git.send.nrw/sendnrw/b1tsblog/internal/article"
)
func getenv(k, d string) string {
if v := os.Getenv(k); v != "" {
return v
}
return d
}
func enabled(k string, def bool) bool {
b, err := strconv.ParseBool(strings.ToLower(os.Getenv(k)))
if err != nil {
return def
}
return b
}
func cacheControl(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Cache-Control", "public, max-age=31536000, immutable")
next.ServeHTTP(w, r)
})
}
var (
tplList *template.Template
tplArticle *template.Template
)
func main() {
funcs := template.FuncMap{
"now": time.Now, // jetztZeit bereitstellen
}
// Basislayout zuerst parsen
layout := template.Must(
template.New("base").Funcs(funcs).
ParseFiles("internal/web/templates/base.html"),
)
// LISTSeite: base + list.html
tplList = template.Must(layout.Clone())
template.Must(tplList.Funcs(funcs).ParseFiles("internal/web/templates/list.html"))
// ARTICLEInstanz
tplArticle = template.Must(layout.Clone())
template.Must(tplArticle.Funcs(funcs).ParseFiles("internal/web/templates/article.html"))
tplPage := template.Must(layout.Clone())
template.Must(tplPage.ParseFiles("internal/web/templates/page.html"))
mux := http.NewServeMux()
staticDir := "internal/web/static"
articles, err := article.LoadDir("content")
if err != nil {
fmt.Println(err)
}
staticPages, err := article.LoadStatic("pages")
if err != nil {
fmt.Println(err)
} else {
fmt.Println(staticPages)
}
// Handler für /
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.NotFound(w, r)
return
}
if err := tplList.ExecuteTemplate(w, "layout", articles); err != nil {
http.Error(w, err.Error(), 500)
}
})
mux.HandleFunc("/post/", func(w http.ResponseWriter, r *http.Request) {
slug := strings.TrimPrefix(r.URL.Path, "/post/")
for _, a := range articles {
if a.Slug == slug {
if err := tplArticle.ExecuteTemplate(w, "layout", a); err != nil {
http.Error(w, err.Error(), 500)
}
return
}
}
http.NotFound(w, r)
})
mux.HandleFunc("/page/", func(w http.ResponseWriter, r *http.Request) {
slug := strings.TrimPrefix(r.URL.Path, "/page/")
p, ok := staticPages[slug]
if !ok {
http.NotFound(w, r)
return
}
// "layout" kommt aus deinem TemplatePool (list/article nutzen es ja auch)
if err := tplPage.ExecuteTemplate(w, "page", p); err != nil {
http.Error(w, err.Error(), 500)
}
})
mux.Handle("/static/",
cacheControl(http.StripPrefix("/static/",
http.FileServer(http.Dir(staticDir)))))
http.ListenAndServe(":8080", mux)
}