477 lines
12 KiB
JavaScript
477 lines
12 KiB
JavaScript
const express = require("express");
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const app = express();
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const port = process.env.PORT || 3000;
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const bodyParser = require("body-parser");
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const Client = require("ssb-client");
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const ssbKeys = require("ssb-keys");
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const ssbConfig = require("./ssb-config");
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const {
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asyncRouter,
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writeKey,
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nextIdentityFilename,
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reconstructKeys,
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readKey,
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uploadPicture,
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identityFilename,
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ssbFolder,
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} = require("./utils");
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const queries = require("./queries");
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const serveBlobs = require("./serve-blobs");
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const cookieParser = require("cookie-parser");
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const debug = require("debug")("express");
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const fileUpload = require("express-fileupload");
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const Sentry = require("@sentry/node");
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const metrics = require("./metrics");
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const sgMail = require("@sendgrid/mail");
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const ejs = require("ejs");
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let ssbServer;
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let mode = process.env.MODE || "client";
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let homeFolder =
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process.env.HOME || process.env.HOMEPATH || process.env.USERPROFILE;
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let ssbSecret = ssbKeys.loadOrCreateSync(
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`${homeFolder}/.${process.env.CONFIG_FOLDER || "social"}/secret`
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);
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let syncing = false;
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Client(ssbSecret, ssbConfig, async (err, server) => {
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if (err) throw err;
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ssbServer = server;
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queries.progress(
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ssbServer,
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({ rate, feeds, incompleteFeeds, progress, total }) => {
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if (incompleteFeeds > 0) {
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if (!syncing) debug("syncing");
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syncing = true;
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} else {
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syncing = false;
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}
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metrics.ssbProgressRate.set(rate);
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metrics.ssbProgressFeeds.set(feeds);
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metrics.ssbProgressIncompleteFeeds.set(incompleteFeeds);
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metrics.ssbProgressProgress.set(progress);
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metrics.ssbProgressTotal.set(total);
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}
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);
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console.log("SSB Client ready");
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});
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let profileUrl = (id, path = "") => {
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return `/profile/${id}${path}`;
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};
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const SENTRY_DSN = process.env.SENTRY_DSN;
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if (SENTRY_DSN && process.env.NODE_ENV == "production") {
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Sentry.init({
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dsn: SENTRY_DSN,
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});
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// Sentry request handler must be the first middleware on the app
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app.use(Sentry.Handlers.requestHandler());
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}
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app.use(bodyParser.json());
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app.use(bodyParser.urlencoded({ extended: true }));
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app.set("view engine", "ejs");
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app.use(express.static("public"));
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app.use(cookieParser());
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app.use(fileUpload());
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app.use(async (req, res, next) => {
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if (!ssbServer) {
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setTimeout(() => {
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console.log("Waiting for SSB to load...");
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res.redirect("/");
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}, 500);
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return;
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}
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req.context = {
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syncing: syncing,
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};
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res.locals.context = req.context;
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try {
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const identities = await ssbServer.identities.list();
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const key = req.cookies["ssb_key"];
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if (!key) return next();
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const parsedKey = JSON.parse(key);
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if (!identities.includes(parsedKey.id)) {
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const filename = await nextIdentityFilename(ssbServer);
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writeKey(key, `/identities/${filename}`);
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ssbServer.identities.refresh();
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}
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req.context.profile = await queries.getProfile(ssbServer, parsedKey.id);
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next();
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} catch (e) {
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next(e);
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}
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});
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app.use((_req, res, next) => {
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res.locals.profileUrl = profileUrl;
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res.locals.imageUrl = (blob) => {
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const imageHash = blob && typeof blob == "object" ? blob.link : blob;
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return imageHash && `/blob/${encodeURIComponent(imageHash)}`;
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};
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res.locals.profileImageUrl = (profile) => {
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if (profile.image) {
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return res.locals.imageUrl(profile.image);
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}
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return "/images/no-avatar.png";
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};
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next();
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});
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const router = asyncRouter(app);
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router.get("/", async (req, res) => {
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if (!req.context.profile) {
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return res.render("index");
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}
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const [posts, friends, vanishingMessages] = await Promise.all([
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queries.getPosts(ssbServer, req.context.profile),
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queries.getFriends(ssbServer, req.context.profile),
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queries.getVanishingMessages(ssbServer, req.context.profile),
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]);
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res.render("home", {
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posts,
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friends,
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vanishingMessages,
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profile: req.context.profile,
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});
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});
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router.get("/login", (_req, res) => {
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res.render("login", { mode });
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});
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router.post("/login", async (req, res) => {
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const submittedKey =
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req.files && req.files.ssb_key
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? req.files.ssb_key.data.toString()
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: req.body.ssb_key;
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try {
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const decodedKey = reconstructKeys(submittedKey);
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res.cookie("ssb_key", JSON.stringify(decodedKey));
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decodedKey.private = "[removed]";
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debug("Login with key", decodedKey);
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await queries.autofollow(ssbServer, decodedKey.id);
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res.redirect("/");
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} catch (e) {
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debug("Error on login", e);
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res.send("Invalid key");
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}
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});
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router.get("/download", (_req, res) => {
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res.render("download");
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});
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router.get("/logout", async (_req, res) => {
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res.clearCookie("ssb_key");
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res.redirect("/");
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});
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router.get("/signup", (req, res) => {
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if (req.context.profile) {
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return res.redirect("/");
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}
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res.render("signup", { mode });
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});
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router.post("/signup", async (req, res) => {
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const name = req.body.name;
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const picture = req.files && req.files.pic;
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const pictureLink = picture && (await uploadPicture(ssbServer, picture));
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const filename = await nextIdentityFilename(ssbServer);
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const profileId = await ssbServer.identities.create();
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const key = readKey(`/identities/${filename}`);
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if (key.id != profileId)
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throw "profileId and key.id don't match, probably race condition, bailing out for safety";
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debug("Created new user with id", profileId);
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res.cookie("ssb_key", JSON.stringify(key));
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key.private = "[removed]";
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debug("Generated key", key);
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debug("Published about", { about: profileId, name, image: pictureLink });
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await queries.autofollow(ssbServer, profileId);
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res.redirect("/");
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});
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router.get("/keys", (req, res) => {
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res.render("keys", {
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useEmail: process.env.SENDGRID_API_KEY,
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key: req.cookies["ssb_key"],
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});
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});
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router.post("/keys/email", async (req, res) => {
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const email = req.body.email;
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let html = await ejs.renderFile("views/email_sign_in.ejs", {
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host: `http://${req.headers.host}`,
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ssb_key: req.cookies["ssb_key"],
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});
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sgMail.setApiKey(process.env.SENDGRID_API_KEY);
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const msg = {
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to: email,
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from: "nobody@social.com",
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subject: `Login button for ${req.context.profile.name}`,
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html,
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};
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await sgMail.send(msg);
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res.render("keys_sent");
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});
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router.get("/keys/copy", (req, res) => {
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res.render("keys_copy", { key: req.cookies["ssb_key"] });
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});
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router.get("/keys/download", async (req, res) => {
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const identities = await ssbServer.identities.list();
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const index = identities.indexOf(req.context.profile.id) - 1;
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const filename = identityFilename(index);
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const secretPath = `${ssbFolder()}/identities/${filename}`;
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res.attachment("secret");
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res.sendFile(secretPath);
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});
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router.get("/profile/:id(*)", async (req, res) => {
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const id = req.params.id;
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if (id == req.context.profile.id) {
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return res.redirect("/");
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}
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const [profile, posts, friends, friendshipStatus] = await Promise.all([
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queries.getProfile(ssbServer, id),
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queries.getPosts(ssbServer, { id }),
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queries.getFriends(ssbServer, { id }),
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queries.getFriendshipStatus(ssbServer, req.context.profile.id, id),
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]);
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res.render("profile", { profile, posts, friends, friendshipStatus });
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});
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router.post("/profile/:id/add_friend", async (req, res) => {
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const id = req.params.id;
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if (id == req.context.profile.id) {
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throw "cannot befriend yourself";
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}
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await ssbServer.identities.publishAs({
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id: req.context.profile.id,
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private: false,
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content: {
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type: "contact",
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contact: id,
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following: true,
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},
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});
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res.redirect(profileUrl(id));
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});
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router.post("/profile/:id/reject_friend", async (req, res) => {
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const id = req.params.id;
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if (id == req.context.profile.id) {
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throw "cannot reject yourself";
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}
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await ssbServer.identities.publishAs({
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id: req.context.profile.id,
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private: false,
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content: {
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type: "contact",
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contact: id,
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following: false,
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},
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});
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res.redirect(profileUrl(id));
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});
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router.post("/publish", async (req, res) => {
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await ssbServer.identities.publishAs({
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id: req.context.profile.id,
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private: false,
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content: {
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type: "post",
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text: req.body.message,
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root: req.context.profile.id,
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},
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});
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res.redirect("/");
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});
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// TODO: tie reading with deleting
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router.post("/vanish", async (req, res) => {
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const key = req.body.key;
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await ssbServer.identities.publishAs({
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id: req.context.profile.id,
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private: false,
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content: {
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type: "delete",
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dest: key,
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},
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});
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res.send("ok");
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});
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router.post("/profile/:id/publish", async (req, res) => {
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const id = req.params.id;
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const visibility = req.body.visibility;
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if (visibility == "vanishing") {
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await ssbServer.identities.publishAs({
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id: req.context.profile.id,
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private: true,
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content: {
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type: "post",
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text: req.body.message,
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root: id,
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recps: [id],
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},
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});
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} else {
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await ssbServer.identities.publishAs({
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id: req.context.profile.id,
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private: false,
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content: {
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type: "post",
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text: req.body.message,
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root: id,
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},
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});
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}
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res.redirect(profileUrl(id));
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});
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router.get("/pubs", async (_req, res) => {
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const invite = await ssbServer.invite.create({ uses: 10 });
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const peers = await ssbServer.gossip.peers();
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res.render("pubs", { invite, peers });
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});
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router.post("/pubs/add", async (req, res) => {
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const inviteCode = req.body.invite_code;
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await ssbServer.invite.accept(inviteCode);
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res.redirect("/");
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});
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router.get("/about", (_req, res) => {
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res.render("about");
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});
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router.post("/about", async (req, res) => {
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const { name, description } = req.body;
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const picture = req.files && req.files.pic;
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const pictureLink = picture && (await uploadPicture(ssbServer, picture));
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let update = {
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type: "about",
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about: req.context.profile.id,
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};
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if (name && name != req.context.profile.name) {
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update.name = name;
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}
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if (description && description != req.context.profile.description) {
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update.description = description;
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}
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if (pictureLink) {
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update.image = pictureLink;
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}
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if (update.name || update.image || update.description) {
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await ssbServer.identities.publishAs({
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id: req.context.profile.id,
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private: false,
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content: update,
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});
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delete queries.profileCache[req.context.profile.id];
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}
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res.redirect("/");
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});
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router.get("/debug", async (req, res) => {
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const query = req.query || {};
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const entries = await queries.getAllEntries(ssbServer, query);
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res.render("debug", { entries, query });
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});
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router.get("/debug-error", (_req, res) => {
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const object = {};
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object.isUndefinedAFunction();
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res.send("should never reach here");
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});
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router.get("/search", async (req, res) => {
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const query = req.query.query;
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const people = await queries.searchPeople(ssbServer, query);
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metrics.searchResults.observe(people.length);
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res.render("search", { people, query });
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});
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router.get("/blob/*", (req, res) => {
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serveBlobs(ssbServer)(req, res);
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});
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router.get("/syncing", (req, res) => {
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res.json({ syncing });
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});
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router.get("/metrics", (_req, res) => {
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res.set("Content-Type", metrics.register.contentType);
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res.end(metrics.register.metrics());
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});
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if (SENTRY_DSN && process.env.NODE_ENV == "production") {
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// The error handler must be before any other error middleware and after all controllers
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app.use(Sentry.Handlers.errorHandler());
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}
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app.use((error, _req, res, _next) => {
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res.statusCode = 500;
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res.render("error", { error });
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});
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const expressServer = app.listen(port, () =>
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console.log(`Example app listening at http://localhost:${port}`)
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);
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module.exports = expressServer;
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