func getFileInfo(c *Context, w http.ResponseWriter, r *http.Request) {
if len(utils.Cfg.FileSettings.DriverName) == 0 {
c.Err = model.NewLocAppError("uploadFile", "api.file.upload_file.storage.app_error", nil, "")
c.Err.StatusCode = http.StatusNotImplemented
return
}
params := mux.Vars(r)
channelId := params["channel_id"]
if len(channelId) != 26 {
c.SetInvalidParam("getFileInfo", "channel_id")
return
}
userId := params["user_id"]
if len(userId) != 26 {
c.SetInvalidParam("getFileInfo", "user_id")
return
}
filename := params["filename"]
if len(filename) == 0 {
c.SetInvalidParam("getFileInfo", "filename")
return
}
cchan := Srv.Store.Channel().CheckPermissionsToNoTeam(channelId, c.Session.UserId)
path := "channels/" + channelId + "/users/" + userId + "/" + filename
var info *model.FileInfo
if cached, ok := fileInfoCache.Get(path); ok {
info = cached.(*model.FileInfo)
} else {
err, bytes := getFileData(c.TeamId, channelId, userId, filename)
if err != nil {
c.Err = err
return
}
newInfo, err := model.GetInfoForBytes(filename, bytes)
if err != nil {
c.Err = err
return
} else {
fileInfoCache.Add(path, newInfo)
info = newInfo
}
}
if !c.HasPermissionsToChannel(cchan, "getFileInfo") {
return
}
w.Header().Set("Cache-Control", "max-age=2592000, public")
w.Write([]byte(info.ToJson()))
}
func getFileInfo(c *Context, w http.ResponseWriter, r *http.Request) {
if len(utils.Cfg.FileSettings.DriverName) == 0 {
c.Err = model.NewLocAppError("uploadFile", "api.file.upload_file.storage.app_error", nil, "")
c.Err.StatusCode = http.StatusNotImplemented
return
}
params := mux.Vars(r)
channelId := params["channel_id"]
if len(channelId) != 26 {
c.SetInvalidParam("getFileInfo", "channel_id")
return
}
userId := params["user_id"]
if len(userId) != 26 {
c.SetInvalidParam("getFileInfo", "user_id")
return
}
filename := params["filename"]
if len(filename) == 0 {
c.SetInvalidParam("getFileInfo", "filename")
return
}
if !HasPermissionToChannelContext(c, channelId, model.PERMISSION_READ_CHANNEL) {
return
}
path := "teams/" + c.TeamId + "/channels/" + channelId + "/users/" + userId + "/" + filename
var info *model.FileInfo
if cached, ok := fileInfoCache.Get(path); ok {
info = cached.(*model.FileInfo)
} else {
fileData := make(chan []byte)
go readFile(path, fileData)
newInfo, err := model.GetInfoForBytes(filename, <-fileData)
if err != nil {
c.Err = err
return
} else {
fileInfoCache.Add(path, newInfo)
info = newInfo
}
}
w.Header().Set("Cache-Control", "max-age=2592000, public")
w.Write([]byte(info.ToJson()))
}
func uploadEmojiImage(id string, imageData *multipart.FileHeader) *model.AppError {
file, err := imageData.Open()
if err != nil {
return model.NewLocAppError("uploadEmojiImage", "api.emoji.upload.open.app_error", nil, "")
}
defer file.Close()
buf := bytes.NewBuffer(nil)
io.Copy(buf, file)
// make sure the file is an image and is within the required dimensions
if config, _, err := image.DecodeConfig(bytes.NewReader(buf.Bytes())); err != nil {
return model.NewLocAppError("uploadEmojiImage", "api.emoji.upload.image.app_error", nil, err.Error())
} else if config.Width > MaxEmojiWidth || config.Height > MaxEmojiHeight {
data := buf.Bytes()
newbuf := bytes.NewBuffer(nil)
if info, err := model.GetInfoForBytes(imageData.Filename, data); err != nil {
return err
} else if info.MimeType == "image/gif" {
if gif_data, err := gif.DecodeAll(bytes.NewReader(data)); err != nil {
return model.NewLocAppError("uploadEmojiImage", "api.emoji.upload.large_image.gif_decode_error", nil, "")
} else {
resized_gif := resizeEmojiGif(gif_data)
if err := gif.EncodeAll(newbuf, resized_gif); err != nil {
return model.NewLocAppError("uploadEmojiImage", "api.emoji.upload.large_image.gif_encode_error", nil, "")
}
if err := app.WriteFile(newbuf.Bytes(), getEmojiImagePath(id)); err != nil {
return err
}
}
} else {
if img, _, err := image.Decode(bytes.NewReader(data)); err != nil {
return model.NewLocAppError("uploadEmojiImage", "api.emoji.upload.large_image.decode_error", nil, "")
} else {
resized_image := resizeEmoji(img, config.Width, config.Height)
if err := png.Encode(newbuf, resized_image); err != nil {
return model.NewLocAppError("uploadEmojiImage", "api.emoji.upload.large_image.encode_error", nil, "")
}
if err := app.WriteFile(newbuf.Bytes(), getEmojiImagePath(id)); err != nil {
return err
}
}
}
} else {
if err := app.WriteFile(buf.Bytes(), getEmojiImagePath(id)); err != nil {
return err
}
}
return nil
}
func getInfoForFilename(post *model.Post, teamId string, filename string) *model.FileInfo {
// Find the path from the Filename of the form /{channelId}/{userId}/{uid}/{nameWithExtension}
split := strings.SplitN(filename, "/", 5)
if len(split) < 5 {
l4g.Error(utils.T("api.file.migrate_filenames_to_file_infos.unexpected_filename.error"), post.Id, filename)
return nil
}
channelId := split[1]
userId := split[2]
oldId := split[3]
name, _ := url.QueryUnescape(split[4])
if split[0] != "" || split[1] != post.ChannelId || split[2] != post.UserId || strings.Contains(split[4], "/") {
l4g.Warn(utils.T("api.file.migrate_filenames_to_file_infos.mismatched_filename.warn"), post.Id, post.ChannelId, post.UserId, filename)
}
pathPrefix := fmt.Sprintf("teams/%s/channels/%s/users/%s/%s/", teamId, channelId, userId, oldId)
path := pathPrefix + name
// Open the file and populate the fields of the FileInfo
var info *model.FileInfo
if data, err := ReadFile(path); err != nil {
l4g.Error(utils.T("api.file.migrate_filenames_to_file_infos.file_not_found.error"), post.Id, filename, path, err)
return nil
} else {
var err *model.AppError
info, err = model.GetInfoForBytes(name, data)
if err != nil {
l4g.Warn(utils.T("api.file.migrate_filenames_to_file_infos.info.app_error"), post.Id, filename, err)
}
}
// Generate a new ID because with the old system, you could very rarely get multiple posts referencing the same file
info.Id = model.NewId()
info.CreatorId = post.UserId
info.PostId = post.Id
info.CreateAt = post.CreateAt
info.UpdateAt = post.UpdateAt
info.Path = path
if info.IsImage() {
nameWithoutExtension := name[:strings.LastIndex(name, ".")]
info.PreviewPath = pathPrefix + nameWithoutExtension + "_preview.jpg"
info.ThumbnailPath = pathPrefix + nameWithoutExtension + "_thumb.jpg"
}
return info
}
func doUploadFile(teamId string, channelId string, userId string, rawFilename string, data []byte) (*model.FileInfo, *model.AppError) {
filename := filepath.Base(rawFilename)
info, err := model.GetInfoForBytes(filename, data)
if err != nil {
err.StatusCode = http.StatusBadRequest
return nil, err
}
info.Id = model.NewId()
info.CreatorId = userId
pathPrefix := "teams/" + teamId + "/channels/" + channelId + "/users/" + userId + "/" + info.Id + "/"
info.Path = pathPrefix + filename
if info.IsImage() {
// Check dimensions before loading the whole thing into memory later on
if info.Width*info.Height > MaxImageSize {
err := model.NewLocAppError("uploadFile", "api.file.upload_file.large_image.app_error", map[string]interface{}{"Filename": filename}, "")
err.StatusCode = http.StatusBadRequest
return nil, err
}
nameWithoutExtension := filename[:strings.LastIndex(filename, ".")]
info.PreviewPath = pathPrefix + nameWithoutExtension + "_preview.jpg"
info.ThumbnailPath = pathPrefix + nameWithoutExtension + "_thumb.jpg"
}
if err := WriteFile(data, info.Path); err != nil {
return nil, err
}
if result := <-Srv.Store.FileInfo().Save(info); result.Err != nil {
return nil, result.Err
}
return info, nil
}