7407b89b8d
Remove banned imports (fmt, strings, os, errors, path/filepath) across all production and test files, replace with core.* primitives, coreio.ReadStream, and coreerr.E. Upgrade dappco.re/go/core v0.5.0 → v0.7.0 for core.PathBase and core.Is. Fix isRepoScoped to exclude pr.* capabilities (enforcement is at the forge layer, not the policy engine). Add Good/Bad/Ugly test coverage to all packages missing the mandatory three-category naming convention. Co-Authored-By: Virgil <virgil@lethean.io>
63 lines
1.7 KiB
Go
63 lines
1.7 KiB
Go
package crypt
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import (
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"crypto/sha256"
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"crypto/sha512"
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"encoding/hex"
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goio "io"
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coreio "dappco.re/go/core/io"
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coreerr "dappco.re/go/core/log"
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)
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// SHA256File computes the SHA-256 checksum of a file and returns it as a hex string.
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//
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// sum, err := crypt.SHA256File("/path/to/archive.tar.gz")
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func SHA256File(path string) (string, error) {
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reader, err := coreio.ReadStream(coreio.Local, path)
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if err != nil {
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return "", coreerr.E("crypt.SHA256File", "failed to open file", err)
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}
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defer func() { _ = reader.Close() }()
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h := sha256.New()
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if _, err := goio.Copy(h, reader); err != nil {
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return "", coreerr.E("crypt.SHA256File", "failed to read file", err)
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}
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return hex.EncodeToString(h.Sum(nil)), nil
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}
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// SHA512File computes the SHA-512 checksum of a file and returns it as a hex string.
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//
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// sum, err := crypt.SHA512File("/path/to/archive.tar.gz")
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func SHA512File(path string) (string, error) {
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reader, err := coreio.ReadStream(coreio.Local, path)
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if err != nil {
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return "", coreerr.E("crypt.SHA512File", "failed to open file", err)
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}
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defer func() { _ = reader.Close() }()
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h := sha512.New()
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if _, err := goio.Copy(h, reader); err != nil {
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return "", coreerr.E("crypt.SHA512File", "failed to read file", err)
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}
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return hex.EncodeToString(h.Sum(nil)), nil
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}
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// SHA256Sum computes the SHA-256 checksum of data and returns it as a hex string.
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//
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// digest := crypt.SHA256Sum([]byte("hello")) // "2cf24dba..."
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func SHA256Sum(data []byte) string {
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h := sha256.Sum256(data)
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return hex.EncodeToString(h[:])
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}
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// SHA512Sum computes the SHA-512 checksum of data and returns it as a hex string.
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//
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// digest := crypt.SHA512Sum([]byte("hello")) // "9b71d224..."
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func SHA512Sum(data []byte) string {
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h := sha512.Sum512(data)
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return hex.EncodeToString(h[:])
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}
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