helper

Documentation

Index

• Constants
• Variables
• func EmbeddedRes(v string, fn func(string, int64)) [][]string
• func ExtensionRegexpEnd() string
• func ExtensionRegister(extensions ...string)
• func ExtensionUnregister(extensions ...string)
• func FileTypeByName(filename string) string
• func Init()
• func RelatedRes(v string, fn func(string, int64), seperator ...string)
• func ReplaceEmbeddedRes(v string, reses map[string]string) (r string)
• func ReplaceEmbeddedResID(v string, reses map[uint64]string) (r string)
• func ReplaceRelatedRes(v string, reses map[string]string, seperator ...string) (r string)
• func ReplaceRelatedResID(v string, reses map[uint64]string, seperator ...string) (r string)
• func URLToFile(fileURL string) string

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`,
	}

	// FileTypeIcon 文件类型icon
	FileTypeIcon = upload.FileTypeIcon

	// DetectFileType 根据文件扩展名判断文件类型
	DetectFileType = upload.DetectType

	// TypeRegister 注册文件扩展名
	TypeRegister = upload.TypeRegister
)

var (
	ErrUnsupportedExtension = errors.New("不支持的文件扩展名")
	ErrIncorrectPath        = errors.New("路径不合法")
)

var IsRightUploadFile = func(ctx echo.Context, src string) error {
	src = path.Clean(src)
	ext := strings.ToLower(path.Ext(src))
	if !com.InSlice(ext, AllowedUploadFileExtensions) {
		return errors.WithMessage(ErrIncorrectPath, ext)
	}
	if !strings.HasPrefix(src, UploadURLPath) {
		return ErrIncorrectPath
	}
	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

var ReplacePlaceholder = func(s string, repl func(string) string) string {
	return placeholderRegexp.ReplaceAllStringFunc(s, func(find string) string {
		id := find[9 : len(find)-1]
		return repl(id)
	})
}

ReplacePlaceholder 从文本中替换占位符

Functions

func EmbeddedRes

func EmbeddedRes(v string, fn func(string, int64)) [][]string

EmbeddedRes 获取正文中的资源

func ExtensionRegexpEnd

func ExtensionRegexpEnd() string

func ExtensionRegister

func ExtensionRegister(extensions ...string)

func ExtensionUnregister

func ExtensionUnregister(extensions ...string)

func FileTypeByName

func FileTypeByName(filename string) string

FileTypeByName 根据文件名判断文件类型

func Init

func Init()

func RelatedRes

func RelatedRes(v string, fn func(string, int64), seperator ...string)

RelatedRes 获取字段中关联的资源

func ReplaceEmbeddedRes

func ReplaceEmbeddedRes(v string, reses map[string]string) (r string)

ReplaceEmbeddedRes 替换正文中的资源网址

func ReplaceEmbeddedResID

func ReplaceEmbeddedResID(v string, reses map[uint64]string) (r string)

ReplaceEmbeddedResID 替换正文中的资源网址

func ReplaceRelatedRes

func ReplaceRelatedRes(v string, reses map[string]string, seperator ...string) (r string)

ReplaceRelatedRes 替换字段中的资源网址

func ReplaceRelatedResID

func ReplaceRelatedResID(v string, reses map[uint64]string, seperator ...string) (r string)

ReplaceRelatedResID 替换字段中的资源网址

func URLToFile

func URLToFile(fileURL string) string

URLToFile 文件网址转为存储路径