ce1619051d
- ensure at least 40% of the characters are masked for secrets of length 4 or more - secrets with length <= 6 now show first and last char with mask - secrets with length <= 12 now show first two and last two chars - longer secrets show 3 prefix and 4 suffix
23 lines
665 B
TypeScript
23 lines
665 B
TypeScript
export function maskedSecretPlaceholder(value: unknown, fallback = ""): string {
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const secret = typeof value === "string" ? value.trim() : ""
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if (!secret) {
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return fallback
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}
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// ensure at least 40% of the characters are masked for secrets of length 4 or more
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if (secret.length <= 6) {
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const first = secret[0]
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const last = secret[secret.length - 1]
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return `${first}***${last}`
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}
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if (secret.length <= 12) {
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const firstTwo = secret.slice(0, 2)
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const lastTwo = secret.slice(-2)
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return `${firstTwo}****${lastTwo}`
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}
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const prefix = secret.slice(0, 3)
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const suffix = secret.slice(-4)
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return `${prefix}*****${suffix}`
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}
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