65 lines
1.9 KiB
TypeScript
65 lines
1.9 KiB
TypeScript
type ParsedVcard = {
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name?: string;
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phones: string[];
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};
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const ALLOWED_VCARD_KEYS = new Set(["FN", "N", "TEL"]);
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export function parseVcard(vcard?: string): ParsedVcard {
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if (!vcard) return { phones: [] };
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const lines = vcard.split(/\r?\n/);
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let nameFromN: string | undefined;
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let nameFromFn: string | undefined;
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const phones: string[] = [];
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for (const rawLine of lines) {
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const line = rawLine.trim();
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if (!line) continue;
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const colonIndex = line.indexOf(":");
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if (colonIndex === -1) continue;
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const key = line.slice(0, colonIndex).toUpperCase();
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const rawValue = line.slice(colonIndex + 1).trim();
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if (!rawValue) continue;
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const baseKey = normalizeVcardKey(key);
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if (!baseKey || !ALLOWED_VCARD_KEYS.has(baseKey)) continue;
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const value = cleanVcardValue(rawValue);
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if (!value) continue;
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if (baseKey === "FN" && !nameFromFn) {
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nameFromFn = normalizeVcardName(value);
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continue;
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}
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if (baseKey === "N" && !nameFromN) {
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nameFromN = normalizeVcardName(value);
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continue;
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}
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if (baseKey === "TEL") {
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const phone = normalizeVcardPhone(value);
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if (phone) phones.push(phone);
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}
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}
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return { name: nameFromFn ?? nameFromN, phones };
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}
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function normalizeVcardKey(key: string): string | undefined {
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const [primary] = key.split(";");
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if (!primary) return undefined;
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const segments = primary.split(".");
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return segments[segments.length - 1] || undefined;
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}
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function cleanVcardValue(value: string): string {
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return value.replace(/\\n/gi, " ").replace(/\\,/g, ",").replace(/\\;/g, ";").trim();
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}
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function normalizeVcardName(value: string): string {
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return value.replace(/;/g, " ").replace(/\s+/g, " ").trim();
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}
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function normalizeVcardPhone(value: string): string {
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const trimmed = value.trim();
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if (!trimmed) return "";
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if (trimmed.toLowerCase().startsWith("tel:")) {
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return trimmed.slice(4).trim();
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}
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return trimmed;
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}
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