more proxy debugging

util/headers.go

@@ -0,0 +1,29 @@
+package util
+
+import (
+	"fmt"
+	"net/http"
+	"sort"
+)
+
+func DumpHeaders(headers http.Header, in bool) string {
+	out := "headers {\n"
+	keys := make([]string, len(headers))
+	i := 0
+	for k, _ := range headers {
+		keys[i] = k
+		i++
+	}
+	sort.Strings(keys)
+	for _, k := range keys {
+		for _, v := range headers[k] {
+			indicator := "->"
+			if !in {
+				indicator = "<-"
+			}
+			out += fmt.Sprintf("\t%v %v: %v\n", indicator, k, v)
+		}
+	}
+	out += "}"
+	return out
+}