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https://github.com/gocsaf/csaf.git
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37 lines
1 KiB
Go
37 lines
1 KiB
Go
// This file is Free Software under the Apache-2.0 License
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// without warranty, see README.md and LICENSES/Apache-2.0.txt for details.
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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// SPDX-FileCopyrightText: 2025 German Federal Office for Information Security (BSI) <https://www.bsi.bund.de>
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// Software-Engineering: 2025 Intevation GmbH <https://intevation.de>
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package misc
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import (
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"encoding/json"
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"fmt"
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"io"
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)
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// StrictJSONParse creates a JSON decoder that decodes an interface
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// while not allowing trailing data
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func StrictJSONParse(jsonData io.Reader, target any) error {
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decoder := json.NewDecoder(jsonData)
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// Don't allow unknown fields
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decoder.DisallowUnknownFields()
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if err := decoder.Decode(target); err != nil {
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return fmt.Errorf("JSON decoding error: %w", err)
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}
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// Check for any trailing data after the main JSON structure
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if _, err := decoder.Token(); err != io.EOF {
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if err != nil {
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return fmt.Errorf("error reading trailing data: %w", err)
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}
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return fmt.Errorf("unexpected trailing data after JSON object")
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}
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return nil
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}
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