Added templating support
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parent
773606bd45
commit
669492455b
70
main.go
70
main.go
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@ -3,7 +3,9 @@ package main
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import (
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"flag"
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"fmt"
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"html/template"
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"io"
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"io/ioutil"
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"log"
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"net/http"
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"strings"
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@ -17,31 +19,79 @@ var (
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port = flag.Int("port", 70, "port to proxy to")
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)
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func proxy(res http.ResponseWriter, req *http.Request) {
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type tplRow struct {
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Link template.URL
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Type string
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Text string
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}
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func renderDirectory(w http.ResponseWriter, tpl *template.Template, d gopher.Directory) error {
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out := make([]tplRow, len(d))
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for i, x := range d {
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tr := tplRow{
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Text: x.Description,
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Type: x.Type.String(),
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}
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if x.Type == gopher.INFO {
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out[i] = tr
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continue
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}
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if strings.HasPrefix(x.Selector, "URL:") {
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tr.Link = template.URL(x.Selector[4:])
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} else {
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tr.Link = template.URL(
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fmt.Sprintf(
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"%s%s", string(byte(x.Type)), x.Selector,
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),
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)
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}
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out[i] = tr
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}
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return tpl.Execute(w, struct {
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Title string
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Lines []tplRow
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}{"XXX", out})
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}
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func proxy(w http.ResponseWriter, req *http.Request) {
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path := strings.TrimPrefix(req.URL.Path, "/")
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gr, err := gopher.Get(fmt.Sprintf("gopher://%s:%d/%s", *host, *port, path))
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res, err := gopher.Get(fmt.Sprintf("gopher://%s:%d/%s", *host, *port, path))
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if err != nil {
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io.WriteString(res, fmt.Sprintf("<b>Error:</b><pre>%s</pre>", err))
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io.WriteString(w, fmt.Sprintf("<b>Error:</b><pre>%s</pre>", err))
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return
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}
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if gr.Body != nil {
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io.Copy(res, gr.Body)
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if res.Body != nil {
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io.Copy(w, res.Body)
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} else {
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bytes, err := gr.Dir.ToText()
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if err != nil {
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io.WriteString(res, fmt.Sprintf("<b>Error:</b><pre>%s</pre>", err))
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if err := renderDirectory(w, tpl, res.Dir); err != nil {
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io.WriteString(w, fmt.Sprintf("<b>Error:</b><pre>%s</pre>", err))
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return
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}
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io.WriteString(res, string(bytes))
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}
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}
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var tpl *template.Template
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func main() {
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flag.Parse()
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tpldata, err := ioutil.ReadFile(".template")
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if err == nil {
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tpltext = string(tpldata)
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}
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tpl, err = template.New("gophermenu").Parse(tpltext)
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if err != nil {
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log.Fatal(err)
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}
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http.HandleFunc("/", proxy)
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log.Fatal(http.ListenAndServe(*bind, nil))
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}
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@ -0,0 +1,14 @@
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package main
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var tpltext = `<!doctype html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>{{.Title}}</title>
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</head>
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<body>
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<pre>
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{{range .Lines}} {{if .Link}}({{.Type}}) <a href="{{.Link}}">{{.Text}}</a>{{else}} {{.Text}}{{end}}
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{{end}}</pre>
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</body>
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</html>`
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