spacebar/dist/routes/external.js
2020-12-31 13:58:18 +01:00

75 lines
7.5 KiB
JavaScript

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const body_parser_1 = __importDefault(require("body-parser"));
const express_1 = require("express");
const node_fetch_1 = __importDefault(require("node-fetch"));
const cheerio_1 = __importDefault(require("cheerio"));
const btoa_1 = __importDefault(require("btoa"));
const url_1 = require("url");
const router = express_1.Router();
const DEFAULT_FETCH_OPTIONS = {
redirect: "follow",
follow: 1,
headers: {
"user-agent": "Mozilla/5.0 (compatible; Discordbot/2.0; +https://discordapp.com)",
},
size: 1024 * 1024 * 8,
compress: true,
method: "GET",
};
router.post("/", body_parser_1.default.json(), (req, res) => __awaiter(void 0, void 0, void 0, function* () {
if (!req.body)
throw new Error("Invalid Body (url missing) \nExample: url:https://discord.com");
const { db } = req.server;
const { url } = req.body;
const ID = btoa_1.default(url);
const cache = yield db.data.crawler({ id: ID }).get();
if (cache)
return res.send(cache);
try {
const request = yield node_fetch_1.default(url, DEFAULT_FETCH_OPTIONS);
const text = yield request.text();
const = cheerio_1.default.load(text);
const ogTitle = ('meta[property="og:title"]').attr("content");
const ogDescription = ('meta[property="og:description"]').attr("content");
const ogImage = ('meta[property="og:image"]').attr("content");
const ogUrl = ('meta[property="og:url"]').attr("content");
const ogType = ('meta[property="og:type"]').attr("content");
const filename = new url_1.URL(url).host.split(".")[0];
const ImageResponse = yield node_fetch_1.default(ogImage, DEFAULT_FETCH_OPTIONS);
const ImageType = ImageResponse.headers.get("content-type");
const ImageExtension = ImageType === null || ImageType === void 0 ? void 0 : ImageType.split("/")[1];
const ImageResponseBuffer = (yield ImageResponse.buffer()).toString("base64");
const cachedImage = `/external/${ID}/${filename}.${ImageExtension}`;
yield db.data.externals.push({ image: ImageResponseBuffer, id: ID, type: ImageType });
const new_cache_entry = { id: ID, ogTitle, ogDescription, cachedImage, ogUrl, ogType };
yield db.data.crawler.push(new_cache_entry);
res.send(new_cache_entry);
}
catch (error) {
console.log(error);
throw new Error("Couldn't fetch website");
}
}));
router.get("/:id/:filename", (req, res) => __awaiter(void 0, void 0, void 0, function* () {
const { db } = req.server;
const { id, filename } = req.params;
const { image, type } = yield db.data.externals({ id: id }).get();
const imageBuffer = Buffer.from(image, "base64");
res.set("Content-Type", type);
res.send(imageBuffer);
}));
exports.default = router;
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