精简后的项目：仅保留 api/ui 源码、文档、构建依赖

api/utils/utils.go

@@ -0,0 +1,92 @@
+package utils
+
+import (
+	"crypto/rand"
+	"fmt"
+	"log"
+	"math/big"
+	"os"
+	"path"
+	"path/filepath"
+)
+
+func GenerateToken() string {
+	const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	const length = 8
+
+	charLen := big.NewInt(int64(len(charset)))
+
+	b := make([]byte, length)
+	for i := range b {
+
+		n, err := rand.Int(rand.Reader, charLen)
+		if err != nil {
+			log.Panicf("Could not generate random number: %v", err)
+		}
+		b[i] = charset[n.Int64()]
+	}
+	return string(b)
+}
+
+type PhotoviewError struct {
+	message  string
+	original error
+}
+
+func (e PhotoviewError) Error() string {
+	return fmt.Sprintf("%s: %s", e.message, e.original)
+}
+
+func HandleError(message string, err error) PhotoviewError {
+	log.Printf("ERROR: %s: %s", message, err)
+	return PhotoviewError{
+		message:  message,
+		original: err,
+	}
+}
+
+var test_face_recognition_models_path string = ""
+
+func ConfigureTestFaceRecognitionModelsPath(path string) {
+	test_face_recognition_models_path = path
+}
+
+func FaceRecognitionModelsPath() string {
+	if test_face_recognition_models_path != "" {
+		return test_face_recognition_models_path
+	}
+
+	if EnvFaceRecognitionModelsPath.GetValue() == "" {
+		return path.Join("data", "models")
+	}
+
+	return EnvFaceRecognitionModelsPath.GetValue()
+}
+
+// IsDirSymlink checks that the given path is a symlink and resolves to a
+// directory.
+func IsDirSymlink(linkPath string) (bool, error) {
+
+	fileInfo, err := os.Lstat(linkPath)
+	if err != nil {
+		return false, fmt.Errorf("cannot get fileinfo of the symlink %q: %w", linkPath, err)
+	}
+
+	// Resolve symlinks
+	if fileInfo.Mode()&os.ModeSymlink == os.ModeSymlink {
+		resolvedPath, err := filepath.EvalSymlinks(linkPath)
+		if err != nil {
+			return false, fmt.Errorf("cannot resolve symlink target for %q, skipping it: %w", linkPath, err)
+		}
+
+		resolvedFile, err := os.Stat(resolvedPath)
+		if err != nil {
+			return false, fmt.Errorf("cannot get fileinfo of the symlink %q target %q, skipping it: %w",
+				linkPath, resolvedPath, err)
+		}
+
+		return resolvedFile.IsDir(), nil
+	}
+
+	return false, nil
+}