building the skeleton

1 files changed, 38 insertions, 0 deletions

diff --git a/handlers.go b/handlers.go
new file mode 100644
index 0000000..ce33716
--- /dev/null
+++ b/handlers.go
@@ -0,0 +1,38 @@
+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)
+	}
+}