Remove dead code, do struct alignment, simplify code

caddyhttp/browse/browse.go

@@ -101,12 +101,12 @@ func (l Listing) BreadcrumbMap() map[string]string {
 
 // FileInfo is the info about a particular file or directory
 type FileInfo struct {
-	IsDir   bool
 	Name    string
 	Size    int64
 	URL     string
 	ModTime time.Time
 	Mode    os.FileMode
+	IsDir   bool
 }
 
 // HumanSize returns the size of the file as a human-readable string

caddyhttp/fastcgi/fcgiclient.go

@@ -44,7 +44,6 @@ const FCGINullRequestID uint8 = 0
 
 // FCGIKeepConn describes keep connection mode.
 const FCGIKeepConn uint8 = 1
-const doubleCRLF = "\r\n\r\n"
 
 const (
 	// BeginRequest is the begin request flag.
@@ -261,29 +260,6 @@ func (c *FCGIClient) writePairs(recType uint8, pairs map[string]string) error {
 	return nil
 }
 
-func readSize(s []byte) (uint32, int) {
-	if len(s) == 0 {
-		return 0, 0
-	}
-	size, n := uint32(s[0]), 1
-	if size&(1<<7) != 0 {
-		if len(s) < 4 {
-			return 0, 0
-		}
-		n = 4
-		size = binary.BigEndian.Uint32(s)
-		size &^= 1 << 31
-	}
-	return size, n
-}
-
-func readString(s []byte, size uint32) string {
-	if size > uint32(len(s)) {
-		return ""
-	}
-	return string(s[:size])
-}
-
 func encodeSize(b []byte, size uint32) int {
 	if size > 127 {
 		size |= 1 << 31

caddyhttp/fastcgi/fcgiclient_test.go

@@ -155,7 +155,7 @@ func sendFcgi(reqType int, fcgiParams map[string]string, data []byte, posts map[
 	fcgi.Close()
 	time.Sleep(1 * time.Second)
 
-	if bytes.Index(content, []byte("FAILED")) >= 0 {
+	if bytes.Contains(content, []byte("FAILED")) {
 		globalt.Error("Server return failed message")
 	}
 

caddyhttp/markdown/markdown.go

@@ -144,7 +144,7 @@ func (md Markdown) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error
 	}
 
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
-	w.Header().Set("Content-Length", strconv.FormatInt(int64(len(html)), 10))
+	w.Header().Set("Content-Length", strconv.Itoa(len(html)))
 	httpserver.SetLastModifiedHeader(w, lastModTime)
 	if r.Method == http.MethodGet {
 		w.Write(html)

caddyhttp/proxy/proxy.go

@@ -46,17 +46,17 @@ type UpstreamHostDownFunc func(*UpstreamHost) bool
 
 // UpstreamHost represents a single proxy upstream
 type UpstreamHost struct {
-	Conns             int64  // must be first field to be 64-bit aligned on 32-bit systems
+	Conns             int64 // must be first field to be 64-bit aligned on 32-bit systems
+	MaxConns          int64
 	Name              string // hostname of this upstream host
-	ReverseProxy      *ReverseProxy
-	Fails             int32
-	FailTimeout       time.Duration
-	Unhealthy         bool
 	UpstreamHeaders   http.Header
 	DownstreamHeaders http.Header
+	FailTimeout       time.Duration
 	CheckDown         UpstreamHostDownFunc
 	WithoutPathPrefix string
-	MaxConns          int64
+	ReverseProxy      *ReverseProxy
+	Fails             int32
+	Unhealthy         bool
 }
 
 // Down checks whether the upstream host is down or not.

caddyhttp/proxy/upstream.go

@@ -21,27 +21,26 @@ var (
 )
 
 type staticUpstream struct {
-	from               string
-	upstreamHeaders    http.Header
-	downstreamHeaders  http.Header
-	Hosts              HostPool
-	Policy             Policy
-	KeepAlive          int
-	insecureSkipVerify bool
-
-	FailTimeout time.Duration
-	MaxFails    int32
-	TryDuration time.Duration
-	TryInterval time.Duration
-	MaxConns    int64
-	HealthCheck struct {
+	from              string
+	upstreamHeaders   http.Header
+	downstreamHeaders http.Header
+	Hosts             HostPool
+	Policy            Policy
+	KeepAlive         int
+	FailTimeout       time.Duration
+	TryDuration       time.Duration
+	TryInterval       time.Duration
+	MaxConns          int64
+	HealthCheck       struct {
 		Client   http.Client
 		Path     string
 		Interval time.Duration
 		Timeout  time.Duration
 	}
-	WithoutPathPrefix string
-	IgnoredSubPaths   []string
+	WithoutPathPrefix  string
+	IgnoredSubPaths    []string
+	insecureSkipVerify bool
+	MaxFails           int32
 }
 
 // NewStaticUpstreams parses the configuration input and sets up

caddyhttp/rewrite/rewrite.go

@@ -216,10 +216,7 @@ func (r *ComplexRule) matchExt(rPath string) bool {
 		}
 	}
 
-	if mustUse {
-		return false
-	}
-	return true
+	return !mustUse
 }
 
 func (r *ComplexRule) regexpMatches(rPath string) []string {