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Ran
21 lines
517 B
Go
21 lines
517 B
Go
package identity
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import (
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"fmt"
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ctr "github.com/memohai/memoh/internal/containerd"
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)
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// ValidateUserID enforces a conservative ID charset for isolation.
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func ValidateUserID(userID string) error {
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if userID == "" {
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return fmt.Errorf("%w: user id required", ctr.ErrInvalidArgument)
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}
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for _, r := range userID {
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if !(r == '-' || r == '_' || (r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') || (r >= '0' && r <= '9')) {
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return fmt.Errorf("%w: invalid user id", ctr.ErrInvalidArgument)
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}
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}
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return nil
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}
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