Created
July 20, 2016 06:26
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| package main | |
| import ( | |
| "flag" | |
| "github.com/alecthomas/template" | |
| "net/http" | |
| "log" | |
| ) | |
| var addr = flag.String("addr", ":1718", "http service addresses") | |
| var templ = template.Must(template.New("qr").Parse(templateStr)) | |
| func main() { | |
| flag.Parse() | |
| http.Handle("/", http.HandlerFunc(QR)) | |
| err := http.ListenAndServe(*addr, nil) | |
| if err != nil { | |
| log.Fatal("ListenAndServe:", err) | |
| } | |
| } | |
| func QR(w http.ResponseWriter, req *http.Request) { | |
| templ.Execute(w, req.FormValue("s")) | |
| } | |
| const templateStr = ` | |
| <html> | |
| <head> | |
| <title> | |
| QR Link Generate | |
| </title> | |
| </head> | |
| <body> | |
| {{if .}} | |
| <img src="http://chart.apis.google.com/chart?chs=300x300&cht=qr&choe=UTF-8&chl={{.}}" /> | |
| <br> | |
| {{.}} | |
| <br> | |
| <br> | |
| {{end}} | |
| <form action="/" name=f method="GET"> | |
| <input maxLength=1024 size=70 name=s value="" title="Text to QR Encode"> | |
| <input type=submit value="Show QR" name=qr> | |
| </form> | |
| </body> | |
| </html> | |
| ` |
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