uploader

Documentation

Overview

Copyright 2019-2020 Axetroy. All rights reserved. MIT license.

Copyright 2019-2020 Axetroy. All rights reserved. MIT license.

Copyright 2019-2020 Axetroy. All rights reserved. MIT license.

Index

• Variables
• func Example(c iris.Context)
• func GenerateThumbnail(imagePath string) (outputPath string, err error)
• type ImageResponse

Variables

var File = router.Handler(func(c router.Context) {
	var (
		isSupportFile bool
		maxUploadSize = config2.Upload.File.MaxSize   // 最大上传大小
		allowTypes    = config2.Upload.File.AllowType // 可上传的文件类型
		err           error
		data          = make([]schema.FileResponse, 0)
	)

	defer func() {
		c.JSON(err, data, nil)
	}()

	err = c.Request().ParseMultipartForm(maxUploadSize)

	if err != nil {
		return
	}

	form := c.Request().MultipartForm

	files := form.File["file"]

	if len(files) == 0 {
		err = exception.InvalidParams
		return
	}

	for _, file := range files {
		var (
			src  multipart.File // 要读取的文件
			dist *os.File       // 最终输出的文件
		)
		extname := path.Ext(file.Filename)

		{
			if len(allowTypes) != 0 {
				for i := 0; i < len(allowTypes); i++ {
					if allowTypes[i] == extname {
						isSupportFile = true
						break
					}
				}

				if isSupportFile == false {
					err = exception.NotSupportType
					return
				}
			}

			if file.Size > int64(maxUploadSize) {
				err = exception.OutOfSize
				return
			}
		}

		if src, err = file.Open(); err != nil {
			return
		}

		hash := md5.New()

		if _, err = io.Copy(hash, src); err != nil {
			_ = src.Close()
			return
		} else {
			_ = src.Close()
		}

		md5string := hex.EncodeToString(hash.Sum([]byte("")))

		fileName := md5string + extname

		distPath := path.Join(config2.Upload.Path, config2.Upload.File.Path, fileName)

		if dist, err = os.Create(distPath); err != nil {
			return
		}

		if src, err = file.Open(); err != nil {
			return
		}

		if _, err = io.Copy(dist, src); err != nil {
			_ = src.Close()
			_ = dist.Close()
			return
		} else {
			_ = src.Close()
			_ = dist.Close()
		}

		res := schema.FileResponse{
			Hash:         md5string,
			Filename:     fileName,
			Origin:       file.Filename,
			Size:         file.Size,
			RawPath:      "/v1/resource/file/" + fileName,
			DownloadPath: "/v1/download/file/" + fileName,
		}

		data = append(data, res)

	}

})

var Image = router.Handler(func(c router.Context) {
	var (
		maxUploadSize = config2.Upload.Image.MaxSize // 最大上传大小
		err           error
		data          = make([]ImageResponse, 0)
		imageDir      = path.Join(config2.Upload.Path, config2.Upload.Image.Path)
	)

	defer func() {
		c.JSON(err, data, nil)
	}()

	err = c.Request().ParseMultipartForm(maxUploadSize)

	if err != nil {
		return
	}

	form := c.Request().MultipartForm

	files := form.File["file"]

	if len(files) == 0 {
		err = exception.InvalidParams
		return
	}

	for _, file := range files {
		var (
			src  multipart.File // 要读取的文件
			dist *os.File       // 最终输出的文件
		)

		extname := strings.ToLower(path.Ext(file.Filename))

		{
			if isImage(extname) == false {
				err = exception.NotSupportType
				return
			}

			if maxUploadSize > 0 && file.Size > int64(maxUploadSize) {
				err = exception.OutOfSize
				return
			}
		}

		if src, err = file.Open(); err != nil {
			return
		}

		hash := md5.New()

		if _, err = io.Copy(hash, src); err != nil {
			_ = src.Close()
			return
		} else {
			_ = src.Close()
		}

		md5string := hex.EncodeToString(hash.Sum([]byte("")))

		fileName := md5string + extname

		distPath := path.Join(imageDir, fileName)

		if dist, err = os.Create(distPath); err != nil {
			return
		}

		if src, err = file.Open(); err != nil {
			return
		}

		if _, err = io.Copy(dist, src); err != nil {
			_ = src.Close()
			_ = dist.Close()
			return
		} else {
			_ = src.Close()
			_ = dist.Close()
		}

		res := ImageResponse{
			FileResponse: schema.FileResponse{
				Hash:         md5string,
				Filename:     fileName,
				Origin:       file.Filename,
				Size:         file.Size,
				RawPath:      "/v1/resource/image/" + fileName,
				DownloadPath: "/v1/download/image/" + fileName,
			},
			Thumbnail: false,
		}

		if _, er := GenerateThumbnail(distPath); er == nil {
			res.Thumbnail = true
			res.ThumbnailPath = "/v1/resource/thumbnail/" + fileName
		}

		data = append(data, res)
	}
})

Functions

func Example

func Example(c iris.Context)

func GenerateThumbnail

func GenerateThumbnail(imagePath string) (outputPath string, err error)

* Generate thumbnail

Types

type ImageResponse

type ImageResponse struct {
	schema.FileResponse
	Thumbnail     bool   `json:"thumbnail"`      // 是否拥有缩略图
	ThumbnailPath string `json:"thumbnail_path"` // 缩略图的路径
}