Add proof-of-concept Gemini output of /hypha/

gemini.go

@@ -0,0 +1,83 @@
+package main
+
+import (
+	"crypto/tls"
+	"crypto/x509/pkix"
+	"io/ioutil"
+	"log"
+	"path/filepath"
+	"time"
+
+	"git.sr.ht/~adnano/go-gemini"
+	"git.sr.ht/~adnano/go-gemini/certificate"
+
+	"github.com/bouncepaw/mycorrhiza/markup"
+	"github.com/bouncepaw/mycorrhiza/util"
+)
+
+func geminiHomeHypha(w *gemini.ResponseWriter, rq *gemini.Request) {
+	log.Println(rq.URL)
+	w.Write([]byte(`# MycorrhizaWiki
+
+You have successfully served the wiki through Gemini. Currently, support is really work-in-progress; you should resort to using Mycorrhiza through the web protocols.
+
+Visit home hypha:
+=> /hypha/` + util.HomePage))
+}
+
+func geminiHypha(w *gemini.ResponseWriter, rq *gemini.Request) {
+	log.Println(rq.URL)
+	var (
+		hyphaName         = geminiHyphaNameFromRq(rq, "page", "hypha")
+		data, hyphaExists = HyphaStorage[hyphaName]
+		hasAmnt           = hyphaExists && data.BinaryPath != ""
+		contents          string
+	)
+	if hyphaExists {
+		fileContentsT, errT := ioutil.ReadFile(data.TextPath)
+		if errT == nil {
+			md := markup.Doc(hyphaName, string(fileContentsT))
+			contents = md.AsGemtext()
+		}
+	}
+	if hasAmnt {
+		w.Write([]byte("This hypha has an attachment\n"))
+	}
+	w.Write([]byte(contents))
+}
+
+func handleGemini() {
+	if util.GeminiCertPath == "" {
+		return
+	}
+	certPath, err := filepath.Abs(util.GeminiCertPath)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	var server gemini.Server
+	server.ReadTimeout = 30 * time.Second
+	server.WriteTimeout = 1 * time.Minute
+	if err := server.Certificates.Load(certPath); err != nil {
+		log.Fatal(err)
+	}
+	server.CreateCertificate = func(hostname string) (tls.Certificate, error) {
+		return certificate.Create(certificate.CreateOptions{
+			Subject: pkix.Name{
+				CommonName: hostname,
+			},
+			DNSNames: []string{hostname},
+			Duration: 365 * 24 * time.Hour,
+		})
+	}
+
+	var mux gemini.ServeMux
+	mux.HandleFunc("/", geminiHomeHypha)
+	mux.HandleFunc("/hypha/", geminiHypha)
+	mux.HandleFunc("/page/", geminiHypha)
+
+	server.Handle("localhost", &mux)
+	if err := server.ListenAndServe(); err != nil {
+		log.Fatal(err)
+	}
+}