2012-09-02 13:49:03 -06:00
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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2011-08-20 17:46:19 -06:00
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package main
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import (
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"flag"
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2012-09-13 14:41:13 -06:00
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"html/template"
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2011-08-20 17:46:19 -06:00
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"log"
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2011-11-08 16:43:02 -07:00
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"net/http"
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2011-08-20 17:46:19 -06:00
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)
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var addr = flag.String("addr", ":1718", "http service address") // Q=17, R=18
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var templ = template.Must(template.New("qr").Parse(templateStr))
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func main() {
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flag.Parse()
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http.Handle("/", http.HandlerFunc(QR))
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err := http.ListenAndServe(*addr, nil)
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if err != nil {
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log.Fatal("ListenAndServe:", err)
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}
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}
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func QR(w http.ResponseWriter, req *http.Request) {
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templ.Execute(w, req.FormValue("s"))
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}
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const templateStr = `
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<html>
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<head>
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<title>QR Link Generator</title>
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</head>
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<body>
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{{if .}}
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<img src="http://chart.apis.google.com/chart?chs=300x300&cht=qr&choe=UTF-8&chl={{.}}" />
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<br>
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{{.}}
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<br>
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<br>
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{{end}}
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<form action="/" name=f method="GET"><input maxLength=1024 size=70
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name=s value="" title="Text to QR Encode"><input type=submit
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value="Show QR" name=qr>
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</form>
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</body>
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</html>
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`
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