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			79 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			79 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| package filesystem
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| 
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| import (
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| 	"context"
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| 	"github.com/HFO4/cloudreve/pkg/util"
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| 	"path/filepath"
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| 	"strings"
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| )
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| 
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| /* ==========
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| 	 验证器
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|    ==========
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| */
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| 
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| // 文件/路径名保留字符
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| var reservedCharacter = []string{"\\", "?", "*", "<", "\"", ":", ">", "/", "|"}
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| 
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| // ValidateLegalName 验证文件名/文件夹名是否合法
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| func (fs *FileSystem) ValidateLegalName(ctx context.Context, name string) bool {
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| 	// 是否包含保留字符
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| 	for _, value := range reservedCharacter {
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| 		if strings.Contains(name, value) {
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| 			return false
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| 		}
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| 	}
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| 
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| 	// 是否超出长度限制
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| 	if len(name) >= 256 {
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| 		return false
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| 	}
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| 
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| 	// 是否为空限制
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| 	if len(name) == 0 {
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| 		return false
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| 	}
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| 
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| 	// 结尾不能是空格
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| 	if strings.HasSuffix(name, " ") {
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| 		return false
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| 	}
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| 
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| 	return true
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| }
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| 
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| // ValidateFileSize 验证上传的文件大小是否超出限制
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| func (fs *FileSystem) ValidateFileSize(ctx context.Context, size uint64) bool {
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| 	return size <= fs.User.Policy.MaxSize
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| }
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| 
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| // ValidateCapacity 验证并扣除用户容量
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| func (fs *FileSystem) ValidateCapacity(ctx context.Context, size uint64) bool {
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| 	return fs.User.IncreaseStorage(size)
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| }
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| 
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| // ValidateExtension 验证文件扩展名
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| func (fs *FileSystem) ValidateExtension(ctx context.Context, fileName string) bool {
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| 	// 不需要验证
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| 	if len(fs.User.Policy.OptionsSerialized.FileType) == 0 {
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| 		return true
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| 	}
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| 
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| 	return IsInExtensionList(fs.User.Policy.OptionsSerialized.FileType, fileName)
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| }
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| 
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| // IsInExtensionList 返回文件的扩展名是否在给定的列表范围内
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| func IsInExtensionList(extList []string, fileName string) bool {
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| 	ext := strings.ToLower(filepath.Ext(fileName))
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| 	// 无扩展名时
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| 	if len(ext) == 0 {
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| 		return false
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| 	}
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| 
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| 	if util.ContainsString(extList, ext[1:]) {
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| 		return true
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| 	}
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| 
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| 	return false
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| }
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