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|
package main
import (
"flag"
"fmt"
tmpl "html/template"
"io/fs"
"log"
"net/http"
"os"
"path"
fp "path/filepath"
"strings"
)
var (
host = "samanthony.xyz"
port = "443"
htdocs = "/var/www/htdocs/samanthony.xyz"
)
const (
acmeDocs = "/var/www/acme/"
certFile = "/etc/ssl/samanthony.xyz.fullchain.pem"
keyFile = "/etc/ssl/private/samanthony.xyz.key"
)
const (
devHost = "localhost"
devPort = "6969"
devHtdocs = "htdocs/"
)
var devMode bool
func init() {
flag.BoolVar(&devMode, "dev", false,
"Run server in debug/development mode (on localhost without tls)")
flag.Parse()
if devMode {
host = devHost
port = devPort
htdocs = devHtdocs
}
}
var tmpls = make(map[string]*tmpl.Template)
func init() {
err := fp.WalkDir(htdocs, func(path string, d fs.DirEntry, err error) error {
if fp.Clean(path) == fp.Clean(htdocs) ||
fp.Ext(path) != ".html" ||
path == fp.Join(htdocs, "base.html") {
return nil
}
label := path[len(fp.Clean(htdocs)):]
tmpls[label] = tmpl.Must(tmpl.ParseFiles(fp.Join(htdocs, "base.html"), path))
return nil
})
if err != nil {
log.Fatal(err)
}
}
type Page struct {
Nav Nav
}
type Nav struct {
ThisSection string
Links []NavLink
}
type NavLink struct {
Href string
Label string
}
var nav = Nav{
Links: []NavLink{
{"/", "samanthony.xyz"},
{"/software/", "software"},
},
}
func rootHandler(w http.ResponseWriter, r *http.Request) {
reqPath := r.URL.Path
// If request directory, serve index.html.
// ie. /software -> /software/index.html
if info, err := os.Stat(fp.Join(htdocs, reqPath)); err == nil {
if info.IsDir() {
reqPath = path.Join(reqPath, "index.html")
}
} else if os.IsNotExist(err) {
http.NotFound(w, r)
return
} else {
log.Println(err)
code := http.StatusInternalServerError
http.Error(w, http.StatusText(code), code)
return
}
if t, ok := tmpls[reqPath]; ok {
thisSection := ""
for _, link := range nav.Links {
if strings.HasPrefix(reqPath, link.Href) {
thisSection = link.Href
}
}
nav := nav
nav.ThisSection = thisSection
page := Page{nav}
err := t.Execute(w, page)
if err != nil {
log.Println(err)
code := http.StatusInternalServerError
http.Error(w, http.StatusText(code), code)
return
}
} else {
http.ServeFile(w, r, fp.Join(htdocs, reqPath))
}
}
func main() {
http.HandleFunc("/", rootHandler)
if !devMode {
http.Handle("/.well-known/acme-challenge/",
http.StripPrefix(
"/.well-known/acme-challenge/",
http.FileServer(http.Dir(acmeDocs)),
),
)
}
if devMode {
log.Printf("Listening on %s:%s\n", devHost, devPort)
log.Fatal(http.ListenAndServe(fmt.Sprintf("%s:%s", devHost, devPort), nil))
} else {
log.Printf("Listening on %s:%s\n", host, port)
log.Fatal(http.ListenAndServeTLS(fmt.Sprintf("%s:%s", host, port), certFile, keyFile, nil))
}
}
|