@expo/cli/build/src/start/server/middleware/RuntimeRedirectMiddleware.js

The Expo CLI

"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
Object.defineProperty(exports, "RuntimeRedirectMiddleware", {
    enumerable: true,
    get: ()=>RuntimeRedirectMiddleware
});
function _url() {
    const data = require("url");
    _url = function() {
        return data;
    };
    return data;
}
const _expoMiddleware = require("./ExpoMiddleware");
const _resolvePlatform = require("./resolvePlatform");
const _log = /*#__PURE__*/ _interopRequireWildcard(require("../../../log"));
function _getRequireWildcardCache(nodeInterop) {
    if (typeof WeakMap !== "function") return null;
    var cacheBabelInterop = new WeakMap();
    var cacheNodeInterop = new WeakMap();
    return (_getRequireWildcardCache = function(nodeInterop) {
        return nodeInterop ? cacheNodeInterop : cacheBabelInterop;
    })(nodeInterop);
}
function _interopRequireWildcard(obj, nodeInterop) {
    if (!nodeInterop && obj && obj.__esModule) {
        return obj;
    }
    if (obj === null || typeof obj !== "object" && typeof obj !== "function") {
        return {
            default: obj
        };
    }
    var cache = _getRequireWildcardCache(nodeInterop);
    if (cache && cache.has(obj)) {
        return cache.get(obj);
    }
    var newObj = {};
    var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor;
    for(var key in obj){
        if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) {
            var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null;
            if (desc && (desc.get || desc.set)) {
                Object.defineProperty(newObj, key, desc);
            } else {
                newObj[key] = obj[key];
            }
        }
    }
    newObj.default = obj;
    if (cache) {
        cache.set(obj, newObj);
    }
    return newObj;
}
const debug = require("debug")("expo:start:server:middleware:runtimeRedirect");
class RuntimeRedirectMiddleware extends _expoMiddleware.ExpoMiddleware {
    constructor(projectRoot, options){
        super(projectRoot, [
            "/_expo/link"
        ]);
        this.projectRoot = projectRoot;
        this.options = options;
    }
    async handleRequestAsync(req, res) {
        const { query  } = (0, _url().parse)(req.url, true);
        const isDevClient = query["choice"] === "expo-dev-client";
        var ref;
        const platform = (ref = (0, _resolvePlatform.parsePlatformHeader)(req)) != null ? ref : (0, _resolvePlatform.resolvePlatformFromUserAgentHeader)(req);
        (0, _resolvePlatform.assertMissingRuntimePlatform)(platform);
        (0, _resolvePlatform.assertRuntimePlatform)(platform);
        const runtime = isDevClient ? "custom" : "expo";
        debug(`props:`, {
            platform,
            runtime
        });
        this.options.onDeepLink({
            runtime,
            platform
        });
        const redirect = this.options.getLocation({
            runtime
        });
        if (!redirect) {
            _log.warn(`[redirect middleware]: Unable to determine redirect location for runtime '${runtime}' and platform '${platform}'`);
            res.statusCode = 404;
            res.end();
            return;
        }
        debug("Redirect ->", redirect);
        res.setHeader("Location", redirect);
        // Disable caching
        (0, _expoMiddleware.disableResponseCache)(res);
        // 'Temporary Redirect'
        res.statusCode = 307;
        res.end();
    }
}

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