115 lines
2.5 KiB
Go
115 lines
2.5 KiB
Go
package website
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import (
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"bytes"
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"encoding/base64"
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"encoding/json"
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"fmt"
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"image"
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"io"
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"net/http"
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"strconv"
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"strings"
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"git.handmade.network/hmn/hmn/src/assets"
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"git.handmade.network/hmn/hmn/src/hmnurl"
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"git.handmade.network/hmn/hmn/src/models"
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)
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type AssetUploadResult struct {
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Url string `json:"url,omitempty"`
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Mime string `json:"mime,omitempty"`
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Error string `json:"error,omitempty"`
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}
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const assetMaxSize = 10 * 1024 * 1024
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const assetMaxSizeAdmin = 10 * 1024 * 1024 * 1024
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func AssetMaxSize(user *models.User) int {
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if user.IsStaff {
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return assetMaxSizeAdmin
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} else {
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return assetMaxSize
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}
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}
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func AssetUpload(c *RequestContext) ResponseData {
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maxFilesize := AssetMaxSize(c.CurrentUser)
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contentLength, hasLength := c.Req.Header["Content-Length"]
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if hasLength {
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filesize, err := strconv.Atoi(contentLength[0])
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if err == nil && filesize > maxFilesize {
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res := ResponseData{
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StatusCode: http.StatusOK,
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}
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jsonString, _ := json.Marshal(AssetUploadResult{
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Error: fmt.Sprintf("Filesize too big. Maximum size is %d.", maxFilesize),
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})
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res.Write(jsonString)
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return res
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}
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}
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filenameHeader, hasFilename := c.Req.Header["Hmn-Upload-Filename"]
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originalFilename := "upload"
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if hasFilename {
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decodedFilename, err := base64.StdEncoding.DecodeString(filenameHeader[0])
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if err == nil {
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originalFilename = string(decodedFilename)
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}
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}
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bodyReader := http.MaxBytesReader(c.Res, c.Req.Body, int64(maxFilesize))
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data, err := io.ReadAll(bodyReader)
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if err != nil {
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res := ResponseData{
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StatusCode: http.StatusBadRequest,
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Errors: []error{err},
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}
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return res
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}
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mimeType := http.DetectContentType(data)
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width := 0
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height := 0
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if strings.HasPrefix(mimeType, "image") {
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config, _, err := image.DecodeConfig(bytes.NewReader(data))
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if err == nil {
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width = config.Width
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height = config.Height
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} else {
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// NOTE(asaf): Not image
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mimeType = "application/octet-stream"
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}
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}
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asset, err := assets.Create(c.Context(), c.Conn, assets.CreateInput{
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Content: data,
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Filename: originalFilename,
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ContentType: mimeType,
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UploaderID: &c.CurrentUser.ID,
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Width: width,
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Height: height,
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})
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if err != nil {
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res := ResponseData{
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StatusCode: http.StatusBadRequest,
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Errors: []error{err},
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}
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return res
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}
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res := ResponseData{
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StatusCode: http.StatusOK,
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}
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jsonString, err := json.Marshal(AssetUploadResult{
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Url: hmnurl.BuildS3Asset(asset.S3Key),
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Mime: asset.MimeType,
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})
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res.Write(jsonString)
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return res
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}
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