@cocalc/hub/dist/servers/app/landing-redirect.js

CoCalc: Backend webserver component

"use strict";
/*
Redirects so that all of the URL's for the old landing
pages work with the new next.js implementation.

The mapping is as follows, with the first match winning:

    /index.html --> /

    /policies/pricing.html --> /pricing
    /policies/index.html --> /policies
    /policies/[page].html -> /policies/[page]

    /doc/software.html --> /software
    /doc/software-[name].html --> /software/[name]

    /doc/index.html --> /features
    /doc/[page].html --> /features/[page]

This is defined in the "RULES" array below.
*/
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const path_1 = require("path");
const logger_1 = require("@cocalc/hub/logger");
const base_path_1 = __importDefault(require("@cocalc/backend/base-path"));
const CODE = 301; // permanent redirect
const logger = (0, logger_1.getLogger)("landing-redirect");
const RULES = [
    { start: (0, path_1.join)(base_path_1.default, "index.html"), to: base_path_1.default },
    {
        start: (0, path_1.join)(base_path_1.default, "policies/pricing.html"),
        to: (0, path_1.join)(base_path_1.default, "pricing"),
    },
    {
        start: (0, path_1.join)(base_path_1.default, "policies/index.html"),
        to: (0, path_1.join)(base_path_1.default, "policies"),
    },
    {
        start: (0, path_1.join)(base_path_1.default, "policies/"),
        to: (url) => url.slice(0, url.length - ".html".length),
    },
    {
        start: (0, path_1.join)(base_path_1.default, "doc/software.html"),
        to: (0, path_1.join)(base_path_1.default, "/software"),
    },
    {
        start: (0, path_1.join)(base_path_1.default, "doc/software-"),
        to: (url) => {
            const i = url.lastIndexOf("/doc/software-");
            return `${url.slice(0, i)}/software/${url.slice(i + "/doc/software-".length, url.length - ".html".length)}`;
        },
    },
    { start: (0, path_1.join)(base_path_1.default, "doc/index.html"), to: (0, path_1.join)(base_path_1.default, "/features") },
    {
        start: (0, path_1.join)(base_path_1.default, "doc/"),
        to: (url) => {
            const i = url.lastIndexOf("/doc/");
            return `${url.slice(0, i)}/features/${url.slice(i + "/doc/".length, url.length - ".html".length)}`;
        },
    },
];
function redirect() {
    const doc = (0, path_1.join)(base_path_1.default, "doc/");
    const policies = (0, path_1.join)(base_path_1.default, "policies/");
    const index_html = (0, path_1.join)(base_path_1.default, "index.html");
    logger.info("creating landing pages legacy redirect");
    return async (req, res, next) => {
        const { url } = req;
        //logger.http("redirect %s", url);
        // Check for a quick obvious "no".
        if (!url.endsWith(".html") ||
            !(url.startsWith(doc) || url.startsWith(policies) || url == index_html)) {
            // The url doesn't ended in html or it doesn't start with /doc or /policies,
            // so clearly not going to redirect it.
            next();
            return;
        }
        // Now the url does start with either doc or policies and ends in .html,
        // so we are definitely going to redirect (or fail), since NONE of the new
        // nextjs pages end in .html and there's nothing else under /doc or /policies.
        for (const rule of RULES) {
            if (url.startsWith(rule.start)) {
                const { to } = rule;
                let dest;
                if (typeof to == "string") {
                    dest = to;
                }
                else {
                    dest = to(url);
                }
                logger.http("landing redirect ", url, " --> ", dest);
                res.redirect(CODE, dest);
                return;
            }
        }
        logger.http("landing redirect NOT found for ", url);
        res.status(404).end();
    };
}
exports.default = redirect;
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