forked from TrueCloudLab/frostfs-http-gw
47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package handler
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import (
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"io"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/handler/multipart"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
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"go.uber.org/zap"
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)
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// MultipartFile provides standard ReadCloser interface and also allows one to
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// get file name, it's used for multipart uploads.
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type MultipartFile interface {
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io.ReadCloser
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FileName() string
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}
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func fetchMultipartFile(l *zap.Logger, r io.Reader, boundary string) (MultipartFile, error) {
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// To have a custom buffer (3mb) the custom multipart reader is used.
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// Default reader uses 4KiB chunks, which slow down upload speed up to 400%
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// https://github.com/golang/go/blob/91b9915d3f6f8cd2e9e9fda63f67772803adfa03/src/mime/multipart/multipart.go#L32
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reader := multipart.NewReader(r, boundary)
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for {
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part, err := reader.NextPart()
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if err != nil {
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return nil, err
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}
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name := part.FormName()
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if name == "" {
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l.Debug(logs.IgnorePartEmptyFormName)
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continue
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}
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filename := part.FileName()
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// ignore multipart/form-data values
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if filename == "" {
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l.Debug(logs.IgnorePartEmptyFilename, zap.String("form", name))
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continue
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}
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return part, nil
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}
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}
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