chengchengzhou7
21 lines
773 B
TypeScript
21 lines
773 B
TypeScript
export const getHttpHeaderString = (value: unknown): string | undefined => {
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if (typeof value === "string") return value;
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if (Array.isArray(value) && value.every((item) => typeof item === "string")) {
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return value.join(", ");
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}
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return undefined;
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};
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export const getContentDispositionFilename = (header?: string | null): string | null => {
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if (!header) return null;
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const encoded = /filename\*\s*=\s*UTF-8''([^;]+)/i.exec(header)?.[1];
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if (encoded) {
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try {
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return decodeURIComponent(encoded.trim().replace(/^"|"$/g, ""));
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} catch {
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// Fall through to the ASCII filename when the RFC 5987 value is malformed.
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}
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}
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return /filename\s*=\s*"([^"]+)"|filename\s*=\s*([^;]+)/i.exec(header)?.slice(1).find(Boolean)?.trim() || null;
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};
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