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36 lines
555 B
Go
36 lines
555 B
Go
package upload
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import (
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"bytes"
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"crypto/sha256"
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"encoding/hex"
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"io"
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"os"
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)
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type SHA256Sum []byte
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func (s SHA256Sum) String() string {
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return hex.EncodeToString(s)
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}
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func (s SHA256Sum) Equals(other SHA256Sum) bool {
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return bytes.Equal(s, other)
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}
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func FileSHA256(filePath string) (SHA256Sum, error) {
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file, err := os.Open(filePath)
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if err != nil {
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return nil, err
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}
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defer file.Close()
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hasher := sha256.New()
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if _, err := io.Copy(hasher, file); err != nil {
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return nil, err
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}
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hash := hasher.Sum(nil)
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return SHA256Sum(hash), nil
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}
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