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package main
import (
"crypto/sha256"
"fmt"
"log"
"net/http"
"time"
)
const textutf8 = "text/plain; charset=utf8"
func validRequest(fn func(http.ResponseWriter, *http.Request, string)) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
m := confObj.validPath.FindStringSubmatch(r.URL.Path)
if m == nil {
log.Printf("Invalid API request: %v", r.URL.Path)
http.Error(w, fmt.Errorf(r.URL.Path).Error(), http.StatusNotFound)
return
}
fn(w, r, m[2])
}
}
func apiHandler(w http.ResponseWriter, r *http.Request) {
timerfc3339, err := time.Now().MarshalText()
if err != nil {
log.Printf("Couldn't format time as RFC3339: %v\n", err)
}
etag := fmt.Sprintf("%x", sha256.Sum256(timerfc3339))
w.Header().Set("ETag", etag)
w.Header().Set("Content-Type", textutf8)
timerfc3339 = append(timerfc3339, byte('\n'))
n, err := w.Write(timerfc3339)
if err != nil || n == 0 {
log.Printf("Error writing to HTTP stream: %v\n", err)
}
}
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