35 lines
919 B
Go
35 lines
919 B
Go
package cli
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import (
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"crypto/rand"
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"encoding/hex"
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"fmt"
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"io"
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"path/filepath"
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"strings"
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"time"
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)
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type RunIDGenerator func(time.Time) (string, error)
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func defaultRunIDGenerator(startedAt time.Time) (string, error) {
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var suffix [16]byte
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if _, err := io.ReadFull(rand.Reader, suffix[:]); err != nil {
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return "", fmt.Errorf("read random run ID suffix: %w", err)
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}
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return fmt.Sprintf("run-%d-%s", startedAt.UnixNano(), hex.EncodeToString(suffix[:])), nil
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}
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func validateRunID(runID string) error {
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if runID == "" {
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return fmt.Errorf("run ID must not be empty")
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}
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if runID != strings.TrimSpace(runID) {
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return fmt.Errorf("run ID %q must not have surrounding whitespace", runID)
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}
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if strings.ContainsAny(runID, `/\\`) || filepath.IsAbs(runID) || filepath.Clean(runID) != runID || runID == "." || runID == ".." {
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return fmt.Errorf("run ID %q must be one safe path component", runID)
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}
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return nil
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}
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