Brunobkr/llama.cpp_AlgMor24_github

1/*2  Copyright 2018 Google LLC3 4  Use of this source code is governed by an MIT-style5  license that can be found in the LICENSE file or at6  https://opensource.org/licenses/MIT.7*/8import { assert } from 'workbox-core/_private/assert.js';9import { getFriendlyURL } from 'workbox-core/_private/getFriendlyURL.js';10import { defaultMethod } from './utils/constants.js';11import { logger } from 'workbox-core/_private/logger.js';12import { normalizeHandler } from './utils/normalizeHandler.js';13import { WorkboxError } from 'workbox-core/_private/WorkboxError.js';14import './_version.js';15/**16 * The Router can be used to process a `FetchEvent` using one or more17 * {@link workbox-routing.Route}, responding with a `Response` if18 * a matching route exists.19 *20 * If no route matches a given a request, the Router will use a "default"21 * handler if one is defined.22 *23 * Should the matching Route throw an error, the Router will use a "catch"24 * handler if one is defined to gracefully deal with issues and respond with a25 * Request.26 *27 * If a request matches multiple routes, the **earliest** registered route will28 * be used to respond to the request.29 *30 * @memberof workbox-routing31 */32class Router {33    /**34     * Initializes a new Router.35     */36    constructor() {37        this._routes = new Map();38        this._defaultHandlerMap = new Map();39    }40    /**41     * @return {Map<string, Array<workbox-routing.Route>>} routes A `Map` of HTTP42     * method name ('GET', etc.) to an array of all the corresponding `Route`43     * instances that are registered.44     */45    get routes() {46        return this._routes;47    }48    /**49     * Adds a fetch event listener to respond to events when a route matches50     * the event's request.51     */52    addFetchListener() {53        // See https://github.com/Microsoft/TypeScript/issues/28357#issuecomment-43648470554        self.addEventListener('fetch', ((event) => {55            const { request } = event;56            const responsePromise = this.handleRequest({ request, event });57            if (responsePromise) {58                event.respondWith(responsePromise);59            }60        }));61    }62    /**63     * Adds a message event listener for URLs to cache from the window.64     * This is useful to cache resources loaded on the page prior to when the65     * service worker started controlling it.66     *67     * The format of the message data sent from the window should be as follows.68     * Where the `urlsToCache` array may consist of URL strings or an array of69     * URL string + `requestInit` object (the same as you'd pass to `fetch()`).70     *71     * ```72     * {73     *   type: 'CACHE_URLS',74     *   payload: {75     *     urlsToCache: [76     *       './script1.js',77     *       './script2.js',78     *       ['./script3.js', {mode: 'no-cors'}],79     *     ],80     *   },81     * }82     * ```83     */84    addCacheListener() {85        // See https://github.com/Microsoft/TypeScript/issues/28357#issuecomment-43648470586        self.addEventListener('message', ((event) => {87            // event.data is type 'any'88            // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access89            if (event.data && event.data.type === 'CACHE_URLS') {90                // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment91                const { payload } = event.data;92                if (process.env.NODE_ENV !== 'production') {93                    logger.debug(`Caching URLs from the window`, payload.urlsToCache);94                }95                const requestPromises = Promise.all(payload.urlsToCache.map((entry) => {96                    if (typeof entry === 'string') {97                        entry = [entry];98                    }99                    const request = new Request(...entry);100                    return this.handleRequest({ request, event });101                    // TODO(philipwalton): TypeScript errors without this typecast for102                    // some reason (probably a bug). The real type here should work but103                    // doesn't: `Array<Promise<Response> | undefined>`.104                })); // TypeScript105                event.waitUntil(requestPromises);106                // If a MessageChannel was used, reply to the message on success.107                if (event.ports && event.ports[0]) {108                    void requestPromises.then(() => event.ports[0].postMessage(true));109                }110            }111        }));112    }113    /**114     * Apply the routing rules to a FetchEvent object to get a Response from an115     * appropriate Route's handler.116     *117     * @param {Object} options118     * @param {Request} options.request The request to handle.119     * @param {ExtendableEvent} options.event The event that triggered the120     *     request.121     * @return {Promise<Response>|undefined} A promise is returned if a122     *     registered route can handle the request. If there is no matching123     *     route and there's no `defaultHandler`, `undefined` is returned.124     */125    handleRequest({ request, event, }) {126        if (process.env.NODE_ENV !== 'production') {127            assert.isInstance(request, Request, {128                moduleName: 'workbox-routing',129                className: 'Router',130                funcName: 'handleRequest',131                paramName: 'options.request',132            });133        }134        const url = new URL(request.url, location.href);135        if (!url.protocol.startsWith('http')) {136            if (process.env.NODE_ENV !== 'production') {137                logger.debug(`Workbox Router only supports URLs that start with 'http'.`);138            }139            return;140        }141        const sameOrigin = url.origin === location.origin;142        const { params, route } = this.findMatchingRoute({143            event,144            request,145            sameOrigin,146            url,147        });148        let handler = route && route.handler;149        const debugMessages = [];150        if (process.env.NODE_ENV !== 'production') {151            if (handler) {152                debugMessages.push([`Found a route to handle this request:`, route]);153                if (params) {154                    debugMessages.push([155                        `Passing the following params to the route's handler:`,156                        params,157                    ]);158                }159            }160        }161        // If we don't have a handler because there was no matching route, then162        // fall back to defaultHandler if that's defined.163        const method = request.method;164        if (!handler && this._defaultHandlerMap.has(method)) {165            if (process.env.NODE_ENV !== 'production') {166                debugMessages.push(`Failed to find a matching route. Falling ` +167                    `back to the default handler for ${method}.`);168            }169            handler = this._defaultHandlerMap.get(method);170        }171        if (!handler) {172            if (process.env.NODE_ENV !== 'production') {173                // No handler so Workbox will do nothing. If logs is set of debug174                // i.e. verbose, we should print out this information.175                logger.debug(`No route found for: ${getFriendlyURL(url)}`);176            }177            return;178        }179        if (process.env.NODE_ENV !== 'production') {180            // We have a handler, meaning Workbox is going to handle the route.181            // print the routing details to the console.182            logger.groupCollapsed(`Router is responding to: ${getFriendlyURL(url)}`);183            debugMessages.forEach((msg) => {184                if (Array.isArray(msg)) {185                    logger.log(...msg);186                }187                else {188                    logger.log(msg);189                }190            });191            logger.groupEnd();192        }193        // Wrap in try and catch in case the handle method throws a synchronous194        // error. It should still callback to the catch handler.195        let responsePromise;196        try {197            responsePromise = handler.handle({ url, request, event, params });198        }199        catch (err) {200            responsePromise = Promise.reject(err);201        }202        // Get route's catch handler, if it exists203        const catchHandler = route && route.catchHandler;204        if (responsePromise instanceof Promise &&205            (this._catchHandler || catchHandler)) {206            responsePromise = responsePromise.catch(async (err) => {207                // If there's a route catch handler, process that first208                if (catchHandler) {209                    if (process.env.NODE_ENV !== 'production') {210                        // Still include URL here as it will be async from the console group211                        // and may not make sense without the URL212                        logger.groupCollapsed(`Error thrown when responding to: ` +213                            ` ${getFriendlyURL(url)}. Falling back to route's Catch Handler.`);214                        logger.error(`Error thrown by:`, route);215                        logger.error(err);216                        logger.groupEnd();217                    }218                    try {219                        return await catchHandler.handle({ url, request, event, params });220                    }221                    catch (catchErr) {222                        if (catchErr instanceof Error) {223                            err = catchErr;224                        }225                    }226                }227                if (this._catchHandler) {228                    if (process.env.NODE_ENV !== 'production') {229                        // Still include URL here as it will be async from the console group230                        // and may not make sense without the URL231                        logger.groupCollapsed(`Error thrown when responding to: ` +232                            ` ${getFriendlyURL(url)}. Falling back to global Catch Handler.`);233                        logger.error(`Error thrown by:`, route);234                        logger.error(err);235                        logger.groupEnd();236                    }237                    return this._catchHandler.handle({ url, request, event });238                }239                throw err;240            });241        }242        return responsePromise;243    }244    /**245     * Checks a request and URL (and optionally an event) against the list of246     * registered routes, and if there's a match, returns the corresponding247     * route along with any params generated by the match.248     *249     * @param {Object} options250     * @param {URL} options.url251     * @param {boolean} options.sameOrigin The result of comparing `url.origin`252     *     against the current origin.253     * @param {Request} options.request The request to match.254     * @param {Event} options.event The corresponding event.255     * @return {Object} An object with `route` and `params` properties.256     *     They are populated if a matching route was found or `undefined`257     *     otherwise.258     */259    findMatchingRoute({ url, sameOrigin, request, event, }) {260        const routes = this._routes.get(request.method) || [];261        for (const route of routes) {262            let params;263            // route.match returns type any, not possible to change right now.264            // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment265            const matchResult = route.match({ url, sameOrigin, request, event });266            if (matchResult) {267                if (process.env.NODE_ENV !== 'production') {268                    // Warn developers that using an async matchCallback is almost always269                    // not the right thing to do.270                    if (matchResult instanceof Promise) {271                        logger.warn(`While routing ${getFriendlyURL(url)}, an async ` +272                            `matchCallback function was used. Please convert the ` +273                            `following route to use a synchronous matchCallback function:`, route);274                    }275                }276                // See https://github.com/GoogleChrome/workbox/issues/2079277                // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment278                params = matchResult;279                if (Array.isArray(params) && params.length === 0) {280                    // Instead of passing an empty array in as params, use undefined.281                    params = undefined;282                }283                else if (matchResult.constructor === Object && // eslint-disable-line284                    Object.keys(matchResult).length === 0) {285                    // Instead of passing an empty object in as params, use undefined.286                    params = undefined;287                }288                else if (typeof matchResult === 'boolean') {289                    // For the boolean value true (rather than just something truth-y),290                    // don't set params.291                    // See https://github.com/GoogleChrome/workbox/pull/2134#issuecomment-513924353292                    params = undefined;293                }294                // Return early if have a match.295                return { route, params };296            }297        }298        // If no match was found above, return and empty object.299        return {};300    }301    /**302     * Define a default `handler` that's called when no routes explicitly303     * match the incoming request.304     *305     * Each HTTP method ('GET', 'POST', etc.) gets its own default handler.306     *307     * Without a default handler, unmatched requests will go against the308     * network as if there were no service worker present.309     *310     * @param {workbox-routing~handlerCallback} handler A callback311     * function that returns a Promise resulting in a Response.312     * @param {string} [method='GET'] The HTTP method to associate with this313     * default handler. Each method has its own default.314     */315    setDefaultHandler(handler, method = defaultMethod) {316        this._defaultHandlerMap.set(method, normalizeHandler(handler));317    }318    /**319     * If a Route throws an error while handling a request, this `handler`320     * will be called and given a chance to provide a response.321     *322     * @param {workbox-routing~handlerCallback} handler A callback323     * function that returns a Promise resulting in a Response.324     */325    setCatchHandler(handler) {326        this._catchHandler = normalizeHandler(handler);327    }328    /**329     * Registers a route with the router.330     *331     * @param {workbox-routing.Route} route The route to register.332     */333    registerRoute(route) {334        if (process.env.NODE_ENV !== 'production') {335            assert.isType(route, 'object', {336                moduleName: 'workbox-routing',337                className: 'Router',338                funcName: 'registerRoute',339                paramName: 'route',340            });341            assert.hasMethod(route, 'match', {342                moduleName: 'workbox-routing',343                className: 'Router',344                funcName: 'registerRoute',345                paramName: 'route',346            });347            assert.isType(route.handler, 'object', {348                moduleName: 'workbox-routing',349                className: 'Router',350                funcName: 'registerRoute',351                paramName: 'route',352            });353            assert.hasMethod(route.handler, 'handle', {354                moduleName: 'workbox-routing',355                className: 'Router',356                funcName: 'registerRoute',357                paramName: 'route.handler',358            });359            assert.isType(route.method, 'string', {360                moduleName: 'workbox-routing',361                className: 'Router',362                funcName: 'registerRoute',363                paramName: 'route.method',364            });365        }366        if (!this._routes.has(route.method)) {367            this._routes.set(route.method, []);368        }369        // Give precedence to all of the earlier routes by adding this additional370        // route to the end of the array.371        this._routes.get(route.method).push(route);372    }373    /**374     * Unregisters a route with the router.375     *376     * @param {workbox-routing.Route} route The route to unregister.377     */378    unregisterRoute(route) {379        if (!this._routes.has(route.method)) {380            throw new WorkboxError('unregister-route-but-not-found-with-method', {381                method: route.method,382            });383        }384        const routeIndex = this._routes.get(route.method).indexOf(route);385        if (routeIndex > -1) {386            this._routes.get(route.method).splice(routeIndex, 1);387        }388        else {389            throw new WorkboxError('unregister-route-route-not-registered');390        }391    }392}393export { Router };394