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20 lines
555 B
TypeScript
20 lines
555 B
TypeScript
const CONTROL_CHARS_RE = /\p{Cc}/u;
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const MAX_EXTERNAL_KEY_LENGTH = 512;
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export function normalizeFeishuExternalKey(value: unknown): string | undefined {
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if (typeof value !== "string") {
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return undefined;
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}
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const normalized = value.trim();
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if (!normalized || normalized.length > MAX_EXTERNAL_KEY_LENGTH) {
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return undefined;
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}
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if (CONTROL_CHARS_RE.test(normalized)) {
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return undefined;
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}
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if (normalized.includes("/") || normalized.includes("\\") || normalized.includes("..")) {
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return undefined;
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}
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return normalized;
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}
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