Remove dead code, do struct alignment, simplify code

caddyfile/dispenser_test.go

@@ -64,7 +64,7 @@ func TestDispenser_NextArg(t *testing.T) {
 	}
 
 	assertNextArg := func(expectedVal string, loadAnother bool, expectedCursor int) {
-		if d.NextArg() != true {
+		if !d.NextArg() {
 			t.Error("NextArg(): Should load next argument but got false instead")
 		}
 		if d.cursor != expectedCursor {
@@ -74,7 +74,7 @@ func TestDispenser_NextArg(t *testing.T) {
 			t.Errorf("Val(): Expected '%s' but got '%s'", expectedVal, val)
 		}
 		if !loadAnother {
-			if d.NextArg() != false {
+			if d.NextArg() {
 				t.Fatalf("NextArg(): Should NOT load another argument, but got true instead (val: '%s')", d.Val())
 			}
 			if d.cursor != expectedCursor {

caddyfile/parse.go

@@ -16,8 +16,7 @@ import (
 // pass in nil instead.
 func Parse(filename string, input io.Reader, validDirectives []string) ([]ServerBlock, error) {
 	p := parser{Dispenser: NewDispenser(filename, input), validDirectives: validDirectives}
-	blocks, err := p.parseAll()
-	return blocks, err
+	return p.parseAll()
 }
 
 // allTokens lexes the entire input, but does not parse it.
@@ -62,12 +61,7 @@ func (p *parser) parseAll() ([]ServerBlock, error) {
 func (p *parser) parseOne() error {
 	p.block = ServerBlock{Tokens: make(map[string][]Token)}
 
-	err := p.begin()
-	if err != nil {
-		return err
-	}
-
-	return nil
+	return p.begin()
 }
 
 func (p *parser) begin() error {
@@ -76,6 +70,7 @@ func (p *parser) begin() error {
 	}
 
 	err := p.addresses()
+
 	if err != nil {
 		return err
 	}
@@ -86,12 +81,7 @@ func (p *parser) begin() error {
 		return nil
 	}
 
-	err = p.blockContents()
-	if err != nil {
-		return err
-	}
-
-	return nil
+	return p.blockContents()
 }
 
 func (p *parser) addresses() error {

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 {

caddytls/config.go

@@ -217,7 +217,7 @@ func (c *Config) StorageFor(caURL string) (Storage, error) {
 // MakeTLSConfig reduces configs into a single tls.Config.
 // If TLS is to be disabled, a nil tls.Config will be returned.
 func MakeTLSConfig(configs []*Config) (*tls.Config, error) {
-	if configs == nil || len(configs) == 0 {
+	if len(configs) == 0 {
 		return nil, nil
 	}
 
@@ -418,27 +418,6 @@ var supportedCiphersMap = map[string]uint16{
 	"RSA-3DES-EDE-CBC-SHA":          tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
 }
 
-// List of supported cipher suites in descending order of preference.
-// Ordering is very important! Getting the wrong order will break
-// mainstream clients, especially with HTTP/2.
-//
-// Note that TLS_FALLBACK_SCSV is not in this list since it is always
-// added manually.
-var supportedCiphers = []uint16{
-	tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
-	tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
-	tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-	tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
-	tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
-	tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
-	tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
-	tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
-	tls.TLS_RSA_WITH_AES_256_CBC_SHA,
-	tls.TLS_RSA_WITH_AES_128_CBC_SHA,
-	tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
-	tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
-}
-
 // List of all the ciphers we want to use by default
 var defaultCiphers = []uint16{
 	tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,

caddytls/crypto_test.go

@@ -120,7 +120,7 @@ func TestStandaloneTLSTicketKeyRotation(t *testing.T) {
 				t.Errorf("Expected TLS ticket keys in use: %d; Got instead: %d.", rounds, pkt.keysInUse)
 				return
 			}
-			if c.SessionTicketsDisabled == true {
+			if c.SessionTicketsDisabled {
 				t.Error("Session tickets have been disabled unexpectedly.")
 				return
 			}

caddytls/handshake.go

@@ -301,5 +301,3 @@ var failedIssuanceMu sync.RWMutex
 // If this value is recent, do not make any on-demand certificate requests.
 var lastIssueTime time.Time
 var lastIssueTimeMu sync.Mutex
-
-var errNoCert = errors.New("no certificate available")

caddytls/user.go

@@ -118,11 +118,7 @@ func getUser(storage Storage, email string) (User, error) {
 
 	// load their private key
 	user.key, err = loadPrivateKey(userData.Key)
-	if err != nil {
-		return user, err
-	}
-
-	return user, nil
+	return user, err
 }
 
 // saveUser persists a user's key and account registration