helper

Documentation

Index

• Constants
• Variables
• func ExtensionRegexpEnd() string
• func ExtensionRegister(extensions ...string)
• func ExtensionUnregister(extensions ...string)
• func Init()

Constants

const (
	DefaultUploadURLPath = `/public/upload/`
	DefaultUploadDir     = `./public/upload`
)

Variables

var (
	// UploadURLPath 上传文件网址访问路径
	UploadURLPath = DefaultUploadURLPath

	// UploadDir 定义上传目录（首尾必须带“/”）
	UploadDir = DefaultUploadDir

	// AllowedUploadFileExtensions 被允许上传的文件的扩展名
	AllowedUploadFileExtensions = []string{
		`.jpeg`, `.jpg`, `.gif`, `.png`,
	}
)

var IsRightUploadFile = func(ctx echo.Context, src string) error {
	src = path.Clean(src)
	ext := strings.ToLower(path.Ext(src))
	var ok bool
	var invalidExt string
	for _, ex := range AllowedUploadFileExtensions {
		if ext == ex {
			ok = true
			invalidExt = ext
			break
		}
	}
	if !ok {
		return ctx.E(`不支持的文件扩展名: %s`, invalidExt)
	}
	if !strings.Contains(src, UploadURLPath) {
		return ctx.E(`路径不合法`)
	}
	return nil
}

IsRightUploadFile 是否是正确的上传文件

var ParseAnyFileName = func(s string) []string {
	files := anyFileRegexp.FindAllString(s, -1)
	return files
}

ParseAnyFileName 从文本中解析出任意上传文件名称

var ParsePersistentFileName = func(s string) []string {
	files := persistentFileRegexp.FindAllString(s, -1)
	return files
}

ParsePersistentFileName 从文本中解析出正式文件名称

var ParseTemporaryFileName = func(s string) []string {
	files := temporaryFileRegexp.FindAllString(s, -1)
	return files
}

ParseTemporaryFileName 从文本中解析出临时文件名称

var ReplaceAnyFileName = func(s string, repl func(string) string) string {
	return anyFileRegexp.ReplaceAllStringFunc(s, repl)
}

ReplaceAnyFileName 从文本中替换任意上传文件名称

Functions

func ExtensionRegexpEnd

func ExtensionRegexpEnd() string

func ExtensionRegister

func ExtensionRegister(extensions ...string)

func ExtensionUnregister

func ExtensionUnregister(extensions ...string)

func Init

func Init()