Pihkaal
3e10b8ab5e
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96 lines
2.6 KiB
TypeScript
96 lines
2.6 KiB
TypeScript
import { readdir } from "fs/promises";
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import { join } from "path";
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import { createHash } from "crypto";
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import exifr from "exifr";
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import { z } from "zod";
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const galleryDir = import.meta.dev
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? join(process.cwd(), "public/gallery")
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: join(process.cwd(), ".output/public/gallery");
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const exifSchema = z.object({
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DateTimeOriginal: z.date(),
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Make: z.string(),
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Model: z.string(),
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LensModel: z.string(),
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FNumber: z.number(),
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ExposureTime: z.number(),
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ISO: z.number(),
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FocalLength: z.number(),
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ExifImageWidth: z.number(),
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ExifImageHeight: z.number(),
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});
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export default defineCachedEventHandler(
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async () => {
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try {
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const files = await readdir(galleryDir);
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const imageFiles = files.filter((file) =>
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/\.(jpg|jpeg|png|webp)$/i.test(file),
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);
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const imagesWithExif = (
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await Promise.all(
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imageFiles.map(async (filename) => {
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const filePath = join(galleryDir, filename);
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const rawExif = await exifr.parse(filePath, {
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tiff: true,
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exif: true,
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gps: false,
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interop: false,
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ifd1: false,
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});
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if (!rawExif) return null;
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const parsed = exifSchema.safeParse(rawExif);
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if (!parsed.success) return null;
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const exif = parsed.data;
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return {
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filename,
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url: `/gallery/${filename}`,
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width: exif.ExifImageWidth,
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height: exif.ExifImageHeight,
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exif: {
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date: exif.DateTimeOriginal,
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camera: `${exif.Make} ${exif.Model}`,
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lens: exif.LensModel,
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settings: {
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aperture: `f/${exif.FNumber}`,
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shutter: `1/${Math.round(1 / exif.ExposureTime)}s`,
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iso: String(exif.ISO),
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focalLength: `${exif.FocalLength}mm`,
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},
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},
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};
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}),
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)
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).filter((img) => img !== null);
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return imagesWithExif;
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} catch (err) {
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console.log(err);
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throw createError({
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statusCode: 500,
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message: "Failed to read gallery directory",
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});
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}
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},
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{
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maxAge: 60 * 60 * 24,
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getKey: async () => {
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try {
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const files = await readdir(galleryDir);
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const imageFiles = files.filter((file) =>
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/\.(jpg|jpeg|png|webp)$/i.test(file),
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);
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const filesConcat = imageFiles.sort().join("");
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const hash = createHash("sha256").update(filesConcat).digest("hex");
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return `gallery:${hash}`;
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} catch {
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return "gallery:0";
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}
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},
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},
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);
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