53 lines
1.6 KiB
TypeScript
53 lines
1.6 KiB
TypeScript
import { Request, Response, NextFunction } from "express";
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import booru from "booru";
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/**
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* Middleware for extracting the options from a GET.
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*/
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export function ParseGet(req: Request, res: Response, next: NextFunction) {
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if (req.query.tags && typeof req.query.tags === "string") {
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res.locals.tags = req.query.tags.split(",");
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}
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res.locals.booru = (req.query.booru as string) ?? "sb";
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next();
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}
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/**
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* Middleware for extracting the options from a POST.
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*/
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export function ParsePost(req: Request, res: Response, next: NextFunction) {
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res.locals.tags = req.body.tags;
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res.locals.booru = (req.body.booru as string) ?? "sb";
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next();
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}
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/**
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* Searches the booru for an image to return.
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* @param _req Express request (not used)
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* @param res Node Response
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*/
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export function Search(_req: Request, res: Response) {
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booru
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.search(res.locals.booru, res.locals.tags, { random: true, limit: 1 })
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.then(async (post) => {
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const imageURL = post[0]?.fileUrl as string;
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const type = imageURL.split(".").pop()?.replace("jpg", "jpeg");
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res.setHeader("content-type", `image/${type}`);
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const img = await fetch(imageURL)
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// Turn the image into an ArrayBuffer (which is also a Promise)
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.then(async (fetchRes) => {
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return fetchRes?.arrayBuffer();
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})
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.catch((err: Error) => {
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console.error(err);
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res.status(500).json({ msg: "Wife machine broke", error: err });
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});
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res.status(200).end(Buffer.from(img as ArrayBuffer), "binary");
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})
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.catch((err: Error) => {
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res.status(500).json({ msg: "WaaS Error", error: err });
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console.error(err);
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});
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}
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