add logging

server.go

@@ -6,6 +6,7 @@ import (
     "bufio"
     "strings"
     "strconv"
+    "log"
 )
 
 // SCGIHeaders is a map representing the headers of an SCGI request.
@@ -23,17 +24,20 @@ func handle(c net.Conn, fn HandlerFunc) {
     hl, err := reader.ReadString(':') // SCGI Spec: First bytes until a ':' represent the header length
     if err != nil {
         c.Write([]byte("42" + err.Error()))
+        log.Print(err.Error())
         return
     }
     l, err := strconv.Atoi(hl[:len(hl)-1]) // Strip the trailing :
     if err != nil {
         c.Write([]byte("42" + err.Error()))
+        log.Print(err.Error())
         return
     }
     buf := make([]byte, l)
     _, err = reader.Read(buf)
     if err != nil {
         c.Write([]byte("42" + err.Error()))
+        log.Print(err.Error())
         return
     }
     headerString := string(buf[:l])
@@ -48,6 +52,7 @@ func handle(c net.Conn, fn HandlerFunc) {
     err = fn(c, header)
     if err != nil {
         c.Write([]byte("42" + err.Error()))
+        log.Print(err.Error())
         return
     }
 }
@@ -57,7 +62,7 @@ func Serve(listener net.Listener, fn HandlerFunc) error {
     for {
         conn, err := listener.Accept()
         if err != nil {
-            return err
+            log.Print(err)
         }
 
         go handle(conn, fn)