Replaced math/rand with crypto/rand

cmd/files.go

@@ -11,8 +11,9 @@ import (
 	_ "image/gif"
 	_ "image/jpeg"
 	_ "image/png"
+	"math/big"
 
-	"math/rand"
+	"crypto/rand"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -618,16 +619,24 @@ func pickFile(args []string, filters *Filters, sort string, index *Index) (strin
 		return "", ErrNoImagesFound
 	}
 
-	r := rand.Intn(fileCount)
-
-	for i := 0; i < fileCount; i++ {
-		if r >= (fileCount - 1) {
-			r = 0
-		} else {
-			r++
+	r, err := rand.Int(rand.Reader, big.NewInt(int64(fileCount-2)))
+	if err != nil {
+		return "", err
 	}
 
-		filePath := fileList[r]
+	val, err := strconv.Atoi(strconv.FormatInt(r.Int64(), 10))
+	if err != nil {
+		return "", err
+	}
+
+	for i := 0; i < fileCount; i++ {
+		if val >= fileCount {
+			val = 0
+		} else {
+			val++
+		}
+
+		filePath := fileList[val]
 
 		if !fromCache {
 			image, err := isSupportedFileType(filePath)

cmd/root.go

@@ -17,7 +17,7 @@ var (
 )
 
 const (
-	Version string = "0.59.4"
+	Version string = "0.60.0"
 )
 
 var (

cmd/web.go

@@ -12,7 +12,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"math/rand"
 	"net"
 	"net/http"
 	"net/url"
@@ -1101,8 +1100,6 @@ func ServePage(args []string) error {
 		fmt.Printf("WARNING! Files *will* be deleted after serving!\n\n")
 	}
 
-	rand.New(rand.NewSource(time.Now().UnixNano()))
-
 	mux := httprouter.New()
 
 	index := &Index{