all repos — flounder @ 7955514b3a45c4dc47858b9a29ada4098680e0f4

A small site builder for the Gemini protocol

gemini.go (view raw)

 1package main
 2
 3import (
 4	"crypto/tls"
 5	"crypto/x509/pkix"
 6	gmi "git.sr.ht/~adnano/go-gemini"
 7	"log"
 8	"path"
 9	"path/filepath"
10	"strings"
11	"text/template"
12	"time"
13)
14
15func gmiIndex(w *gmi.ResponseWriter, r *gmi.Request) {
16	log.Println("Index request")
17	t, err := template.ParseFiles("templates/index.gmi")
18	if err != nil {
19		log.Fatal(err)
20	}
21	files, err := getIndexFiles()
22	users, err := getActiveUserNames()
23	if err != nil {
24		log.Println(err)
25		w.WriteHeader(40, "Internal server error")
26	}
27	data := struct {
28		Host      string
29		SiteTitle string
30		Files     []*File
31		Users     []string
32	}{
33		Host:      c.Host,
34		SiteTitle: c.SiteTitle,
35		Files:     files,
36		Users:     users,
37	}
38	t.Execute(w, data)
39}
40
41func gmiPage(w *gmi.ResponseWriter, r *gmi.Request) {
42	userName := filepath.Clean(strings.Split(r.URL.Host, ".")[0]) // clean probably unnecessary
43	fileName := filepath.Clean(r.URL.Path)
44	if fileName == "/" {
45		fileName = "index.gmi"
46	}
47	log.Println("Request for gemini file", fileName, "for user", userName)
48
49	gmi.ServeFile(w, gmi.Dir(path.Join(c.FilesDirectory, userName)), fileName)
50}
51
52func runGeminiServer() {
53	log.Println("Starting gemini server")
54	var server gmi.Server
55	server.ReadTimeout = 1 * time.Minute
56	server.WriteTimeout = 2 * time.Minute
57
58	hostname := strings.SplitN(c.Host, ":", 2)[0]
59	// is this necc?
60	err := server.Certificates.Load(c.GeminiCertStore)
61	if err != nil {
62	}
63	server.CreateCertificate = func(h string) (tls.Certificate, error) {
64		log.Println("Generating certificate for", h)
65		return gmi.CreateCertificate(gmi.CertificateOptions{
66			Subject: pkix.Name{
67				CommonName: hostname,
68			},
69			DNSNames: []string{h},
70			Duration: time.Hour * 760, // one month
71		})
72	}
73
74	var mux gmi.ServeMux
75	// replace with wildcard cert
76	mux.HandleFunc("/", gmiIndex)
77
78	var wildcardMux gmi.ServeMux
79	wildcardMux.HandleFunc("/", gmiPage)
80	server.Register(hostname, &mux)
81	server.Register("*."+hostname, &wildcardMux)
82
83	err = server.ListenAndServe()
84	if err != nil {
85		log.Fatal(err)
86	}
87}