Stupid little webserver for controlling my Raspberry Pi cheerlights/lirc remote. Rife with bad ideas (unbounded memory usage, passing inputs to shell commands, woo!), but works nicely and compiles beautifully to ARM using goxc.

chub.go

package main

import (
	"fmt"
	"net/http"
	"log"
	"html"
	"os/exec"
)

func main() {
	colors := []string{}
	http.HandleFunc("/", func (w http.ResponseWriter, r *http.Request) {
		w.Header().Add("content-type", "text/html")
		color := r.URL.Path[1:]
		_,err := exec.Command("irsend", "send_once", "sylvania.conf", color).Output()
		if err != nil {
			log.Print(err)
		}

		colors = append(colors, color)
		fmt.Fprintf(w, "<ul>")
		for i := range(colors) {
			fmt.Fprintf(w, "<li><a href='/%s'>%s</a></li>", html.EscapeString(colors[i]), html.EscapeString(colors[i]))
		}
		fmt.Fprintf(w, "</ul>")
	})
	log.Fatal(http.ListenAndServe(":8585", nil))
}