microblog.go hinzugefügt
This commit is contained in:
+106
@@ -0,0 +1,106 @@
|
||||
/**
|
||||
* microblog in go
|
||||
*
|
||||
* get goldmark md parser
|
||||
* go get github.com/yuin/goldmark
|
||||
**/
|
||||
package main
|
||||
|
||||
import (
|
||||
"html/template"
|
||||
"io/ioutil"
|
||||
"net/http"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strings"
|
||||
|
||||
"github.com/yuin/goldmark"
|
||||
)
|
||||
|
||||
const articlesDir = "data/articles"
|
||||
|
||||
func main() {
|
||||
http.HandleFunc("/", handlePage)
|
||||
println("Server läuft auf http://localhost:8080")
|
||||
http.ListenAndServe(":8080", nil)
|
||||
}
|
||||
|
||||
func handlePage(w http.ResponseWriter, r *http.Request) {
|
||||
path := r.URL.Path
|
||||
if path == "/" {
|
||||
path = "/index"
|
||||
}
|
||||
// Entferne führenden Slash
|
||||
pagePath := strings.TrimPrefix(path, "/")
|
||||
// Baue den Pfad zur Markdown-Datei
|
||||
mdPath := filepath.Join(articlesDir, filepath.FromSlash(pagePath)+".md")
|
||||
|
||||
// Überprüfe, ob die Datei existiert
|
||||
if _, err := os.Stat(mdPath); os.IsNotExist(err) {
|
||||
http.NotFound(w, r)
|
||||
return
|
||||
}
|
||||
|
||||
// Datei lesen
|
||||
data, err := ioutil.ReadFile(mdPath)
|
||||
if err != nil {
|
||||
http.Error(w, "Fehler beim Lesen der Seite", 500)
|
||||
return
|
||||
}
|
||||
|
||||
// Markdown in HTML umwandeln mit Goldmark
|
||||
htmlContent, err := markdownToHTML(data)
|
||||
if err != nil {
|
||||
http.Error(w, "Fehler bei der Konvertierung", 500)
|
||||
return
|
||||
}
|
||||
|
||||
// Seiten-Titel aus Dateiname oder erster Überschrift (optional)
|
||||
title := filepath.Base(pagePath)
|
||||
title = strings.ReplaceAll(title, "_", " ")
|
||||
title = strings.Title(title)
|
||||
|
||||
// HTML-Template
|
||||
tmpl := `
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta charset="UTF-8" />
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
|
||||
<title>{{.Title}}</title>
|
||||
<style>
|
||||
body { font-family: sans-serif; margin: 0; padding: 1em; max-width: 800px; margin: auto; }
|
||||
h1 { margin-top: 0; }
|
||||
a { color: #333; text-decoration: none; }
|
||||
a:hover { text-decoration: underline; }
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
<h1>{{.Title}}</h1>
|
||||
<div>{{.Content}}</div>
|
||||
<p><a href="/">Startseite</a></p>
|
||||
</body>
|
||||
</html>
|
||||
`
|
||||
|
||||
t, err := template.New("page").Parse(tmpl)
|
||||
if err != nil {
|
||||
http.Error(w, "Template Fehler", 500)
|
||||
return
|
||||
}
|
||||
|
||||
t.Execute(w, map[string]interface{}{
|
||||
"Title": title,
|
||||
"Content": template.HTML(htmlContent),
|
||||
})
|
||||
}
|
||||
|
||||
// Funktion, um Markdown mit Goldmark in HTML umzuwandeln
|
||||
func markdownToHTML(md []byte) ([]byte, error) {
|
||||
var buf strings.Builder
|
||||
mdParser := goldmark.New()
|
||||
if err := mdParser.Convert(md, &buf); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return []byte(buf.String()), nil
|
||||
}
|
||||
Reference in New Issue
Block a user