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gocsaf/internal/misc/mime.go
Sascha L. Teichmann e0475791ff
Downloader: Add forwarding to HTTP endpoint (#442)
* started with forwarding support in downloader

* Add missing files.

* Add missing files.

* Raise needed Go version

* More Go version bumping.

* Fix forwarding

* Go 1.21+ needed

* Make terminating forwarder more robust.

* Better var naming

* Remove dead code. Improve commentary.

* Prepare validation status adjustment.

* Move validations to functions to make them executable in a loop.

* Introduce validation mode flag (strict, unsafe)
2023-08-25 10:31:27 +02:00

31 lines
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Go

// This file is Free Software under the MIT License
// without warranty, see README.md and LICENSES/MIT.txt for details.
//
// SPDX-License-Identifier: MIT
//
// SPDX-FileCopyrightText: 2023 German Federal Office for Information Security (BSI) <https://www.bsi.bund.de>
// Software-Engineering: 2023 Intevation GmbH <https://intevation.de>
package misc
import (
"fmt"
"io"
"mime/multipart"
"net/textproto"
"strings"
)
var escapeQuotes = strings.NewReplacer("\\", "\\\\", `"`, "\\\"").Replace
// CreateFormFile creates an [io.Writer] like [mime/multipart.Writer.CreateFromFile].
// This version allows to set the mime type, too.
func CreateFormFile(w *multipart.Writer, fieldname, filename, mimeType string) (io.Writer, error) {
// Source: https://cs.opensource.google/go/go/+/refs/tags/go1.20:src/mime/multipart/writer.go;l=140
h := make(textproto.MIMEHeader)
h.Set("Content-Disposition",
fmt.Sprintf(`form-data; name="%s"; filename="%s"`,
escapeQuotes(fieldname), escapeQuotes(filename)))
h.Set("Content-Type", mimeType)
return w.CreatePart(h)
}