112 lines
2.1 KiB
Go
112 lines
2.1 KiB
Go
package main
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import (
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"bufio"
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"strconv"
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"strings"
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"net/http"
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"net/http/cgi"
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"time"
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"path"
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)
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type Handler struct {
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cgi.Handler
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}
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var BaseDir string
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func ReadString(fn string) string {
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octets, err := ioutil.ReadFile(fn)
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if err != nil {
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log.Fatal(err)
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}
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return strings.TrimSpace(string(octets))
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}
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func tail(w http.ResponseWriter, pos int) {
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f, err := os.Open(path.Join(BaseDir, "log"))
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if err != nil {
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log.Fatal(err)
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}
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defer f.Close()
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for {
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printid := false
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_, err = f.Seek(int64(pos), 0)
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if err != nil {
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log.Fatal(err)
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}
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bf := bufio.NewScanner(f)
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for bf.Scan() {
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t := bf.Text()
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pos += len(t) + 1 // XXX: this breaks if we ever see \r\n
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fmt.Fprintf(w, "data: %s\n", t)
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printid = true
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}
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if printid {
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_, err = fmt.Fprintf(w, "id: %d\n\n", pos)
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}
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if err != nil {
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break
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}
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w.(http.Flusher).Flush()
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time.Sleep(350 * time.Millisecond)
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}
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}
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func handleCommand(w http.ResponseWriter, text string, target string) {
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fn := path.Join(BaseDir, fmt.Sprintf("outq/cgi.%d", time.Now().Unix()))
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f, err := os.Create(fn)
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if err != nil {
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fmt.Fprintln(w, "NO")
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fmt.Fprintln(w, err)
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return
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}
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defer f.Close()
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switch {
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case strings.HasPrefix(text, "/quote "):
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fmt.Fprintln(f, text[7:])
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case strings.HasPrefix(text, "/me "):
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fmt.Fprintf(f, "PRIVMSG %s :\001ACTION %s\001\n", target, text[4:])
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default:
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fmt.Fprintf(f, "PRIVMSG %s :%s\n", target, text)
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}
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fmt.Fprintln(w, "OK")
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}
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func (h Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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authtok := ReadString(path.Join(BaseDir, "authtok"))
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if r.FormValue("auth") != authtok {
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w.Header().Set("Content-Type", "text/plain")
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fmt.Fprintln(w, "NO")
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return
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}
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switch r.FormValue("type") {
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case "command":
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w.Header().Set("Content-Type", "text/plain")
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handleCommand(w, r.Form.Get("text"), r.FormValue("target"))
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default:
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w.Header().Set("Content-Type", "text/event-stream")
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id, _ := strconv.Atoi(os.Getenv("HTTP_LAST_EVENT_ID"))
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tail(w, id)
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}
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}
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func main() {
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BaseDir = ReadString("irc.basedir")
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h := Handler{}
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if err := cgi.Serve(h); err != nil {
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log.Fatal(err)
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}
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}
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