76 lines
2.4 KiB
TypeScript
76 lines
2.4 KiB
TypeScript
import { getQuery, setHeader } from "h3";
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import { getAuthContext } from "../../../utils/auth";
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import { prisma } from "../../../utils/prisma";
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import { requireTelegramBotToken, telegramApiBase, telegramBotApi } from "../../../utils/telegram";
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const TELEGRAM_FILE_MARKER = "tg-file:";
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type TelegramFileMeta = {
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file_id: string;
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file_path?: string;
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};
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function parseTelegramFileId(avatarUrl: string | null | undefined) {
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const raw = String(avatarUrl ?? "").trim();
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if (!raw.startsWith(TELEGRAM_FILE_MARKER)) return null;
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const fileId = raw.slice(TELEGRAM_FILE_MARKER.length).trim();
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return fileId || null;
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}
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export default defineEventHandler(async (event) => {
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const auth = await getAuthContext(event);
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const query = getQuery(event);
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const contactId = String(query.contactId ?? "").trim();
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if (!contactId) {
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throw createError({ statusCode: 400, statusMessage: "contactId is required" });
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}
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const contact = await prisma.contact.findFirst({
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where: {
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id: contactId,
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teamId: auth.teamId,
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},
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select: {
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avatarUrl: true,
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},
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});
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if (!contact) {
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throw createError({ statusCode: 404, statusMessage: "contact not found" });
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}
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const fileId = parseTelegramFileId(contact.avatarUrl);
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if (!fileId) {
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throw createError({ statusCode: 404, statusMessage: "telegram avatar is missing" });
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}
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const meta = await telegramBotApi<TelegramFileMeta>("getFile", { file_id: fileId });
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const filePath = String(meta?.file_path ?? "").trim();
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if (!filePath) {
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throw createError({ statusCode: 502, statusMessage: "telegram file path is unavailable" });
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}
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const apiBase = telegramApiBase().replace(/\/+$/, "");
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const token = requireTelegramBotToken();
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const remote = await fetch(`${apiBase}/file/bot${token}/${filePath}`);
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if (!remote.ok) {
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throw createError({ statusCode: 502, statusMessage: `telegram file fetch failed (${remote.status})` });
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}
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const contentType = remote.headers.get("content-type") || "image/jpeg";
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const contentLength = remote.headers.get("content-length");
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const body = Buffer.from(await remote.arrayBuffer());
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setHeader(event, "content-type", contentType);
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setHeader(event, "cache-control", "private, max-age=300");
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if (contentLength) {
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const parsedLength = Number(contentLength);
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if (Number.isFinite(parsedLength) && parsedLength >= 0) {
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setHeader(event, "content-length", parsedLength);
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}
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}
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return body;
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});
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