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40 lines
956 B
40 lines
956 B
4 months ago
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// Copyright 2024 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package rpm
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import (
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"bytes"
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"io"
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"strings"
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packages_module "code.gitea.io/gitea/modules/packages"
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"github.com/ProtonMail/go-crypto/openpgp"
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"github.com/sassoftware/go-rpmutils"
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)
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func SignPackage(buf *packages_module.HashedBuffer, privateKey string) (*packages_module.HashedBuffer, error) {
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keyring, err := openpgp.ReadArmoredKeyRing(strings.NewReader(privateKey))
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if err != nil {
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return nil, err
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}
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h, err := rpmutils.SignRpmStream(buf, keyring[0].PrivateKey, nil)
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if err != nil {
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return nil, err
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}
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signBlob, err := h.DumpSignatureHeader(false)
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if err != nil {
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return nil, err
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}
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if _, err := buf.Seek(int64(h.OriginalSignatureHeaderSize()), io.SeekStart); err != nil {
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return nil, err
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}
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// create new buf with signature prefix
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return packages_module.CreateHashedBufferFromReader(io.MultiReader(bytes.NewReader(signBlob), buf))
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}
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