diff --git a/app.js b/app.js index 0b87de1..4e27688 100644 --- a/app.js +++ b/app.js @@ -1,6 +1,8 @@ const express = require('express'); const request = require('request'); const app = express(); +const cors = require('cors'); +app.use(cors()); const port = 8080; app.use(express.static('public')); diff --git a/index.html b/index.html deleted file mode 100644 index 166fe52..0000000 --- a/index.html +++ /dev/null @@ -1,63 +0,0 @@ - - - - - - 洛谷比赛报名人数进度条 - - - -
- -
- - - - diff --git a/node_modules/.package-lock.json b/node_modules/.package-lock.json index 953eb67..db9da85 100644 --- a/node_modules/.package-lock.json +++ b/node_modules/.package-lock.json @@ -1,5 +1,6 @@ { "name": "page", + "version": "1.0.0", "lockfileVersion": 2, "requires": true, "packages": { @@ -179,6 +180,18 @@ "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz", "integrity": "sha512-3lqz5YjWTYnW6dlDa5TLaTCcShfar1e40rmcJVwCBJC6mWlFuj0eCHIElmG1g5kyuJ/GD+8Wn4FFCcz4gJPfaQ==" }, + "node_modules/cors": { + "version": "2.8.5", + "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz", + "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==", + "dependencies": { + "object-assign": "^4", + "vary": "^1" + }, + "engines": { + "node": ">= 0.10" + } + }, "node_modules/dashdash": { "version": "1.14.1", "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz", @@ -690,6 +703,14 @@ "node": "*" } }, + "node_modules/object-assign": { + "version": "4.1.1", + "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz", + "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==", + "engines": { + "node": ">=0.10.0" + } + }, "node_modules/object-inspect": { "version": "1.13.2", "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.2.tgz", diff --git a/node_modules/cors/CONTRIBUTING.md b/node_modules/cors/CONTRIBUTING.md new file mode 100644 index 0000000..591b09a --- /dev/null +++ b/node_modules/cors/CONTRIBUTING.md @@ -0,0 +1,33 @@ +# contributing to `cors` + +CORS is a node.js package for providing a [connect](http://www.senchalabs.org/connect/)/[express](http://expressjs.com/) middleware that can be used to enable [CORS](http://en.wikipedia.org/wiki/Cross-origin_resource_sharing) with various options. Learn more about the project in [the README](README.md). + +## The CORS Spec + +[http://www.w3.org/TR/cors/](http://www.w3.org/TR/cors/) + +## Pull Requests Welcome + +* Include `'use strict';` in every javascript file. +* 2 space indentation. +* Please run the testing steps below before submitting. + +## Testing + +```bash +$ npm install +$ npm test +``` + +## Interactive Testing Harness + +[http://node-cors-client.herokuapp.com](http://node-cors-client.herokuapp.com) + +Related git repositories: + +* [https://github.com/TroyGoode/node-cors-server](https://github.com/TroyGoode/node-cors-server) +* [https://github.com/TroyGoode/node-cors-client](https://github.com/TroyGoode/node-cors-client) + +## License + +[MIT License](http://www.opensource.org/licenses/mit-license.php) diff --git a/node_modules/cors/HISTORY.md b/node_modules/cors/HISTORY.md new file mode 100644 index 0000000..5762bce --- /dev/null +++ b/node_modules/cors/HISTORY.md @@ -0,0 +1,58 @@ +2.8.5 / 2018-11-04 +================== + + * Fix setting `maxAge` option to `0` + +2.8.4 / 2017-07-12 +================== + + * Work-around Safari bug in default pre-flight response + +2.8.3 / 2017-03-29 +================== + + * Fix error when options delegate missing `methods` option + +2.8.2 / 2017-03-28 +================== + + * Fix error when frozen options are passed + * Send "Vary: Origin" when using regular expressions + * Send "Vary: Access-Control-Request-Headers" when dynamic `allowedHeaders` + +2.8.1 / 2016-09-08 +================== + +This release only changed documentation. + +2.8.0 / 2016-08-23 +================== + + * Add `optionsSuccessStatus` option + +2.7.2 / 2016-08-23 +================== + + * Fix error when Node.js running in strict mode + +2.7.1 / 2015-05-28 +================== + + * Move module into expressjs organization + +2.7.0 / 2015-05-28 +================== + + * Allow array of matching condition as `origin` option + * Allow regular expression as `origin` option + +2.6.1 / 2015-05-28 +================== + + * Update `license` in package.json + +2.6.0 / 2015-04-27 +================== + + * Add `preflightContinue` option + * Fix "Vary: Origin" header added for "*" diff --git a/node_modules/cors/LICENSE b/node_modules/cors/LICENSE new file mode 100644 index 0000000..fd10c84 --- /dev/null +++ b/node_modules/cors/LICENSE @@ -0,0 +1,22 @@ +(The MIT License) + +Copyright (c) 2013 Troy Goode + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +'Software'), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/node_modules/cors/README.md b/node_modules/cors/README.md new file mode 100644 index 0000000..732b847 --- /dev/null +++ b/node_modules/cors/README.md @@ -0,0 +1,243 @@ +# cors + +[![NPM Version][npm-image]][npm-url] +[![NPM Downloads][downloads-image]][downloads-url] +[![Build Status][travis-image]][travis-url] +[![Test Coverage][coveralls-image]][coveralls-url] + +CORS is a node.js package for providing a [Connect](http://www.senchalabs.org/connect/)/[Express](http://expressjs.com/) middleware that can be used to enable [CORS](http://en.wikipedia.org/wiki/Cross-origin_resource_sharing) with various options. + +**[Follow me (@troygoode) on Twitter!](https://twitter.com/intent/user?screen_name=troygoode)** + +* [Installation](#installation) +* [Usage](#usage) + * [Simple Usage](#simple-usage-enable-all-cors-requests) + * [Enable CORS for a Single Route](#enable-cors-for-a-single-route) + * [Configuring CORS](#configuring-cors) + * [Configuring CORS Asynchronously](#configuring-cors-asynchronously) + * [Enabling CORS Pre-Flight](#enabling-cors-pre-flight) +* [Configuration Options](#configuration-options) +* [Demo](#demo) +* [License](#license) +* [Author](#author) + +## Installation + +This is a [Node.js](https://nodejs.org/en/) module available through the +[npm registry](https://www.npmjs.com/). Installation is done using the +[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally): + +```sh +$ npm install cors +``` + +## Usage + +### Simple Usage (Enable *All* CORS Requests) + +```javascript +var express = require('express') +var cors = require('cors') +var app = express() + +app.use(cors()) + +app.get('/products/:id', function (req, res, next) { + res.json({msg: 'This is CORS-enabled for all origins!'}) +}) + +app.listen(80, function () { + console.log('CORS-enabled web server listening on port 80') +}) +``` + +### Enable CORS for a Single Route + +```javascript +var express = require('express') +var cors = require('cors') +var app = express() + +app.get('/products/:id', cors(), function (req, res, next) { + res.json({msg: 'This is CORS-enabled for a Single Route'}) +}) + +app.listen(80, function () { + console.log('CORS-enabled web server listening on port 80') +}) +``` + +### Configuring CORS + +```javascript +var express = require('express') +var cors = require('cors') +var app = express() + +var corsOptions = { + origin: 'http://example.com', + optionsSuccessStatus: 200 // some legacy browsers (IE11, various SmartTVs) choke on 204 +} + +app.get('/products/:id', cors(corsOptions), function (req, res, next) { + res.json({msg: 'This is CORS-enabled for only example.com.'}) +}) + +app.listen(80, function () { + console.log('CORS-enabled web server listening on port 80') +}) +``` + +### Configuring CORS w/ Dynamic Origin + +```javascript +var express = require('express') +var cors = require('cors') +var app = express() + +var whitelist = ['http://example1.com', 'http://example2.com'] +var corsOptions = { + origin: function (origin, callback) { + if (whitelist.indexOf(origin) !== -1) { + callback(null, true) + } else { + callback(new Error('Not allowed by CORS')) + } + } +} + +app.get('/products/:id', cors(corsOptions), function (req, res, next) { + res.json({msg: 'This is CORS-enabled for a whitelisted domain.'}) +}) + +app.listen(80, function () { + console.log('CORS-enabled web server listening on port 80') +}) +``` + +If you do not want to block REST tools or server-to-server requests, +add a `!origin` check in the origin function like so: + +```javascript +var corsOptions = { + origin: function (origin, callback) { + if (whitelist.indexOf(origin) !== -1 || !origin) { + callback(null, true) + } else { + callback(new Error('Not allowed by CORS')) + } + } +} +``` + +### Enabling CORS Pre-Flight + +Certain CORS requests are considered 'complex' and require an initial +`OPTIONS` request (called the "pre-flight request"). An example of a +'complex' CORS request is one that uses an HTTP verb other than +GET/HEAD/POST (such as DELETE) or that uses custom headers. To enable +pre-flighting, you must add a new OPTIONS handler for the route you want +to support: + +```javascript +var express = require('express') +var cors = require('cors') +var app = express() + +app.options('/products/:id', cors()) // enable pre-flight request for DELETE request +app.del('/products/:id', cors(), function (req, res, next) { + res.json({msg: 'This is CORS-enabled for all origins!'}) +}) + +app.listen(80, function () { + console.log('CORS-enabled web server listening on port 80') +}) +``` + +You can also enable pre-flight across-the-board like so: + +```javascript +app.options('*', cors()) // include before other routes +``` + +### Configuring CORS Asynchronously + +```javascript +var express = require('express') +var cors = require('cors') +var app = express() + +var whitelist = ['http://example1.com', 'http://example2.com'] +var corsOptionsDelegate = function (req, callback) { + var corsOptions; + if (whitelist.indexOf(req.header('Origin')) !== -1) { + corsOptions = { origin: true } // reflect (enable) the requested origin in the CORS response + } else { + corsOptions = { origin: false } // disable CORS for this request + } + callback(null, corsOptions) // callback expects two parameters: error and options +} + +app.get('/products/:id', cors(corsOptionsDelegate), function (req, res, next) { + res.json({msg: 'This is CORS-enabled for a whitelisted domain.'}) +}) + +app.listen(80, function () { + console.log('CORS-enabled web server listening on port 80') +}) +``` + +## Configuration Options + +* `origin`: Configures the **Access-Control-Allow-Origin** CORS header. Possible values: + - `Boolean` - set `origin` to `true` to reflect the [request origin](http://tools.ietf.org/html/draft-abarth-origin-09), as defined by `req.header('Origin')`, or set it to `false` to disable CORS. + - `String` - set `origin` to a specific origin. For example if you set it to `"http://example.com"` only requests from "http://example.com" will be allowed. + - `RegExp` - set `origin` to a regular expression pattern which will be used to test the request origin. If it's a match, the request origin will be reflected. For example the pattern `/example\.com$/` will reflect any request that is coming from an origin ending with "example.com". + - `Array` - set `origin` to an array of valid origins. Each origin can be a `String` or a `RegExp`. For example `["http://example1.com", /\.example2\.com$/]` will accept any request from "http://example1.com" or from a subdomain of "example2.com". + - `Function` - set `origin` to a function implementing some custom logic. The function takes the request origin as the first parameter and a callback (which expects the signature `err [object], allow [bool]`) as the second. +* `methods`: Configures the **Access-Control-Allow-Methods** CORS header. Expects a comma-delimited string (ex: 'GET,PUT,POST') or an array (ex: `['GET', 'PUT', 'POST']`). +* `allowedHeaders`: Configures the **Access-Control-Allow-Headers** CORS header. Expects a comma-delimited string (ex: 'Content-Type,Authorization') or an array (ex: `['Content-Type', 'Authorization']`). If not specified, defaults to reflecting the headers specified in the request's **Access-Control-Request-Headers** header. +* `exposedHeaders`: Configures the **Access-Control-Expose-Headers** CORS header. Expects a comma-delimited string (ex: 'Content-Range,X-Content-Range') or an array (ex: `['Content-Range', 'X-Content-Range']`). If not specified, no custom headers are exposed. +* `credentials`: Configures the **Access-Control-Allow-Credentials** CORS header. Set to `true` to pass the header, otherwise it is omitted. +* `maxAge`: Configures the **Access-Control-Max-Age** CORS header. Set to an integer to pass the header, otherwise it is omitted. +* `preflightContinue`: Pass the CORS preflight response to the next handler. +* `optionsSuccessStatus`: Provides a status code to use for successful `OPTIONS` requests, since some legacy browsers (IE11, various SmartTVs) choke on `204`. + +The default configuration is the equivalent of: + +```json +{ + "origin": "*", + "methods": "GET,HEAD,PUT,PATCH,POST,DELETE", + "preflightContinue": false, + "optionsSuccessStatus": 204 +} +``` + +For details on the effect of each CORS header, read [this](http://www.html5rocks.com/en/tutorials/cors/) article on HTML5 Rocks. + +## Demo + +A demo that illustrates CORS working (and not working) using jQuery is available here: [http://node-cors-client.herokuapp.com/](http://node-cors-client.herokuapp.com/) + +Code for that demo can be found here: + +* Client: [https://github.com/TroyGoode/node-cors-client](https://github.com/TroyGoode/node-cors-client) +* Server: [https://github.com/TroyGoode/node-cors-server](https://github.com/TroyGoode/node-cors-server) + +## License + +[MIT License](http://www.opensource.org/licenses/mit-license.php) + +## Author + +[Troy Goode](https://github.com/TroyGoode) ([troygoode@gmail.com](mailto:troygoode@gmail.com)) + +[coveralls-image]: https://img.shields.io/coveralls/expressjs/cors/master.svg +[coveralls-url]: https://coveralls.io/r/expressjs/cors?branch=master +[downloads-image]: https://img.shields.io/npm/dm/cors.svg +[downloads-url]: https://npmjs.org/package/cors +[npm-image]: https://img.shields.io/npm/v/cors.svg +[npm-url]: https://npmjs.org/package/cors +[travis-image]: https://img.shields.io/travis/expressjs/cors/master.svg +[travis-url]: https://travis-ci.org/expressjs/cors diff --git a/node_modules/cors/lib/index.js b/node_modules/cors/lib/index.js new file mode 100644 index 0000000..5475aec --- /dev/null +++ b/node_modules/cors/lib/index.js @@ -0,0 +1,238 @@ +(function () { + + 'use strict'; + + var assign = require('object-assign'); + var vary = require('vary'); + + var defaults = { + origin: '*', + methods: 'GET,HEAD,PUT,PATCH,POST,DELETE', + preflightContinue: false, + optionsSuccessStatus: 204 + }; + + function isString(s) { + return typeof s === 'string' || s instanceof String; + } + + function isOriginAllowed(origin, allowedOrigin) { + if (Array.isArray(allowedOrigin)) { + for (var i = 0; i < allowedOrigin.length; ++i) { + if (isOriginAllowed(origin, allowedOrigin[i])) { + return true; + } + } + return false; + } else if (isString(allowedOrigin)) { + return origin === allowedOrigin; + } else if (allowedOrigin instanceof RegExp) { + return allowedOrigin.test(origin); + } else { + return !!allowedOrigin; + } + } + + function configureOrigin(options, req) { + var requestOrigin = req.headers.origin, + headers = [], + isAllowed; + + if (!options.origin || options.origin === '*') { + // allow any origin + headers.push([{ + key: 'Access-Control-Allow-Origin', + value: '*' + }]); + } else if (isString(options.origin)) { + // fixed origin + headers.push([{ + key: 'Access-Control-Allow-Origin', + value: options.origin + }]); + headers.push([{ + key: 'Vary', + value: 'Origin' + }]); + } else { + isAllowed = isOriginAllowed(requestOrigin, options.origin); + // reflect origin + headers.push([{ + key: 'Access-Control-Allow-Origin', + value: isAllowed ? requestOrigin : false + }]); + headers.push([{ + key: 'Vary', + value: 'Origin' + }]); + } + + return headers; + } + + function configureMethods(options) { + var methods = options.methods; + if (methods.join) { + methods = options.methods.join(','); // .methods is an array, so turn it into a string + } + return { + key: 'Access-Control-Allow-Methods', + value: methods + }; + } + + function configureCredentials(options) { + if (options.credentials === true) { + return { + key: 'Access-Control-Allow-Credentials', + value: 'true' + }; + } + return null; + } + + function configureAllowedHeaders(options, req) { + var allowedHeaders = options.allowedHeaders || options.headers; + var headers = []; + + if (!allowedHeaders) { + allowedHeaders = req.headers['access-control-request-headers']; // .headers wasn't specified, so reflect the request headers + headers.push([{ + key: 'Vary', + value: 'Access-Control-Request-Headers' + }]); + } else if (allowedHeaders.join) { + allowedHeaders = allowedHeaders.join(','); // .headers is an array, so turn it into a string + } + if (allowedHeaders && allowedHeaders.length) { + headers.push([{ + key: 'Access-Control-Allow-Headers', + value: allowedHeaders + }]); + } + + return headers; + } + + function configureExposedHeaders(options) { + var headers = options.exposedHeaders; + if (!headers) { + return null; + } else if (headers.join) { + headers = headers.join(','); // .headers is an array, so turn it into a string + } + if (headers && headers.length) { + return { + key: 'Access-Control-Expose-Headers', + value: headers + }; + } + return null; + } + + function configureMaxAge(options) { + var maxAge = (typeof options.maxAge === 'number' || options.maxAge) && options.maxAge.toString() + if (maxAge && maxAge.length) { + return { + key: 'Access-Control-Max-Age', + value: maxAge + }; + } + return null; + } + + function applyHeaders(headers, res) { + for (var i = 0, n = headers.length; i < n; i++) { + var header = headers[i]; + if (header) { + if (Array.isArray(header)) { + applyHeaders(header, res); + } else if (header.key === 'Vary' && header.value) { + vary(res, header.value); + } else if (header.value) { + res.setHeader(header.key, header.value); + } + } + } + } + + function cors(options, req, res, next) { + var headers = [], + method = req.method && req.method.toUpperCase && req.method.toUpperCase(); + + if (method === 'OPTIONS') { + // preflight + headers.push(configureOrigin(options, req)); + headers.push(configureCredentials(options, req)); + headers.push(configureMethods(options, req)); + headers.push(configureAllowedHeaders(options, req)); + headers.push(configureMaxAge(options, req)); + headers.push(configureExposedHeaders(options, req)); + applyHeaders(headers, res); + + if (options.preflightContinue) { + next(); + } else { + // Safari (and potentially other browsers) need content-length 0, + // for 204 or they just hang waiting for a body + res.statusCode = options.optionsSuccessStatus; + res.setHeader('Content-Length', '0'); + res.end(); + } + } else { + // actual response + headers.push(configureOrigin(options, req)); + headers.push(configureCredentials(options, req)); + headers.push(configureExposedHeaders(options, req)); + applyHeaders(headers, res); + next(); + } + } + + function middlewareWrapper(o) { + // if options are static (either via defaults or custom options passed in), wrap in a function + var optionsCallback = null; + if (typeof o === 'function') { + optionsCallback = o; + } else { + optionsCallback = function (req, cb) { + cb(null, o); + }; + } + + return function corsMiddleware(req, res, next) { + optionsCallback(req, function (err, options) { + if (err) { + next(err); + } else { + var corsOptions = assign({}, defaults, options); + var originCallback = null; + if (corsOptions.origin && typeof corsOptions.origin === 'function') { + originCallback = corsOptions.origin; + } else if (corsOptions.origin) { + originCallback = function (origin, cb) { + cb(null, corsOptions.origin); + }; + } + + if (originCallback) { + originCallback(req.headers.origin, function (err2, origin) { + if (err2 || !origin) { + next(err2); + } else { + corsOptions.origin = origin; + cors(corsOptions, req, res, next); + } + }); + } else { + next(); + } + } + }); + }; + } + + // can pass either an options hash, an options delegate, or nothing + module.exports = middlewareWrapper; + +}()); diff --git a/node_modules/cors/package.json b/node_modules/cors/package.json new file mode 100644 index 0000000..ff37d98 --- /dev/null +++ b/node_modules/cors/package.json @@ -0,0 +1,41 @@ +{ + "name": "cors", + "description": "Node.js CORS middleware", + "version": "2.8.5", + "author": "Troy Goode (https://github.com/troygoode/)", + "license": "MIT", + "keywords": [ + "cors", + "express", + "connect", + "middleware" + ], + "repository": "expressjs/cors", + "main": "./lib/index.js", + "dependencies": { + "object-assign": "^4", + "vary": "^1" + }, + "devDependencies": { + "after": "0.8.2", + "eslint": "2.13.1", + "express": "4.16.3", + "mocha": "5.2.0", + "nyc": "13.1.0", + "supertest": "3.3.0" + }, + "files": [ + "lib/index.js", + "CONTRIBUTING.md", + "HISTORY.md", + "LICENSE", + "README.md" + ], + "engines": { + "node": ">= 0.10" + }, + "scripts": { + "test": "npm run lint && nyc --reporter=html --reporter=text mocha --require test/support/env", + "lint": "eslint lib test" + } +} diff --git a/node_modules/object-assign/index.js b/node_modules/object-assign/index.js new file mode 100644 index 0000000..0930cf8 --- /dev/null +++ b/node_modules/object-assign/index.js @@ -0,0 +1,90 @@ +/* +object-assign +(c) Sindre Sorhus +@license MIT +*/ + +'use strict'; +/* eslint-disable no-unused-vars */ +var getOwnPropertySymbols = Object.getOwnPropertySymbols; +var hasOwnProperty = Object.prototype.hasOwnProperty; +var propIsEnumerable = Object.prototype.propertyIsEnumerable; + +function toObject(val) { + if (val === null || val === undefined) { + throw new TypeError('Object.assign cannot be called with null or undefined'); + } + + return Object(val); +} + +function shouldUseNative() { + try { + if (!Object.assign) { + return false; + } + + // Detect buggy property enumeration order in older V8 versions. + + // https://bugs.chromium.org/p/v8/issues/detail?id=4118 + var test1 = new String('abc'); // eslint-disable-line no-new-wrappers + test1[5] = 'de'; + if (Object.getOwnPropertyNames(test1)[0] === '5') { + return false; + } + + // https://bugs.chromium.org/p/v8/issues/detail?id=3056 + var test2 = {}; + for (var i = 0; i < 10; i++) { + test2['_' + String.fromCharCode(i)] = i; + } + var order2 = Object.getOwnPropertyNames(test2).map(function (n) { + return test2[n]; + }); + if (order2.join('') !== '0123456789') { + return false; + } + + // https://bugs.chromium.org/p/v8/issues/detail?id=3056 + var test3 = {}; + 'abcdefghijklmnopqrst'.split('').forEach(function (letter) { + test3[letter] = letter; + }); + if (Object.keys(Object.assign({}, test3)).join('') !== + 'abcdefghijklmnopqrst') { + return false; + } + + return true; + } catch (err) { + // We don't expect any of the above to throw, but better to be safe. + return false; + } +} + +module.exports = shouldUseNative() ? Object.assign : function (target, source) { + var from; + var to = toObject(target); + var symbols; + + for (var s = 1; s < arguments.length; s++) { + from = Object(arguments[s]); + + for (var key in from) { + if (hasOwnProperty.call(from, key)) { + to[key] = from[key]; + } + } + + if (getOwnPropertySymbols) { + symbols = getOwnPropertySymbols(from); + for (var i = 0; i < symbols.length; i++) { + if (propIsEnumerable.call(from, symbols[i])) { + to[symbols[i]] = from[symbols[i]]; + } + } + } + } + + return to; +}; diff --git a/node_modules/object-assign/license b/node_modules/object-assign/license new file mode 100644 index 0000000..654d0bf --- /dev/null +++ b/node_modules/object-assign/license @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) Sindre Sorhus (sindresorhus.com) + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/node_modules/object-assign/package.json b/node_modules/object-assign/package.json new file mode 100644 index 0000000..503eb1e --- /dev/null +++ b/node_modules/object-assign/package.json @@ -0,0 +1,42 @@ +{ + "name": "object-assign", + "version": "4.1.1", + "description": "ES2015 `Object.assign()` ponyfill", + "license": "MIT", + "repository": "sindresorhus/object-assign", + "author": { + "name": "Sindre Sorhus", + "email": "sindresorhus@gmail.com", + "url": "sindresorhus.com" + }, + "engines": { + "node": ">=0.10.0" + }, + "scripts": { + "test": "xo && ava", + "bench": "matcha bench.js" + }, + "files": [ + "index.js" + ], + "keywords": [ + "object", + "assign", + "extend", + "properties", + "es2015", + "ecmascript", + "harmony", + "ponyfill", + "prollyfill", + "polyfill", + "shim", + "browser" + ], + "devDependencies": { + "ava": "^0.16.0", + "lodash": "^4.16.4", + "matcha": "^0.7.0", + "xo": "^0.16.0" + } +} diff --git a/node_modules/object-assign/readme.md b/node_modules/object-assign/readme.md new file mode 100644 index 0000000..1be09d3 --- /dev/null +++ b/node_modules/object-assign/readme.md @@ -0,0 +1,61 @@ +# object-assign [![Build Status](https://travis-ci.org/sindresorhus/object-assign.svg?branch=master)](https://travis-ci.org/sindresorhus/object-assign) + +> ES2015 [`Object.assign()`](http://www.2ality.com/2014/01/object-assign.html) [ponyfill](https://ponyfill.com) + + +## Use the built-in + +Node.js 4 and up, as well as every evergreen browser (Chrome, Edge, Firefox, Opera, Safari), +support `Object.assign()` :tada:. If you target only those environments, then by all +means, use `Object.assign()` instead of this package. + + +## Install + +``` +$ npm install --save object-assign +``` + + +## Usage + +```js +const objectAssign = require('object-assign'); + +objectAssign({foo: 0}, {bar: 1}); +//=> {foo: 0, bar: 1} + +// multiple sources +objectAssign({foo: 0}, {bar: 1}, {baz: 2}); +//=> {foo: 0, bar: 1, baz: 2} + +// overwrites equal keys +objectAssign({foo: 0}, {foo: 1}, {foo: 2}); +//=> {foo: 2} + +// ignores null and undefined sources +objectAssign({foo: 0}, null, {bar: 1}, undefined); +//=> {foo: 0, bar: 1} +``` + + +## API + +### objectAssign(target, [source, ...]) + +Assigns enumerable own properties of `source` objects to the `target` object and returns the `target` object. Additional `source` objects will overwrite previous ones. + + +## Resources + +- [ES2015 spec - Object.assign](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.assign) + + +## Related + +- [deep-assign](https://github.com/sindresorhus/deep-assign) - Recursive `Object.assign()` + + +## License + +MIT © [Sindre Sorhus](https://sindresorhus.com) diff --git a/package-lock.json b/package-lock.json index 42bcd18..4343bb6 100644 --- a/package-lock.json +++ b/package-lock.json @@ -1,13 +1,19 @@ { "name": "page", + "version": "1.0.0", "lockfileVersion": 2, "requires": true, "packages": { "": { + "name": "page", + "version": "1.0.0", + "license": "ISC", "dependencies": { + "cors": "^2.8.5", "express": "^4.19.2", "request": "^2.88.2" - } + }, + "devDependencies": {} }, "node_modules/accepts": { "version": "1.3.8", @@ -185,6 +191,18 @@ "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz", "integrity": "sha512-3lqz5YjWTYnW6dlDa5TLaTCcShfar1e40rmcJVwCBJC6mWlFuj0eCHIElmG1g5kyuJ/GD+8Wn4FFCcz4gJPfaQ==" }, + "node_modules/cors": { + "version": "2.8.5", + "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz", + "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==", + "dependencies": { + "object-assign": "^4", + "vary": "^1" + }, + "engines": { + "node": ">= 0.10" + } + }, "node_modules/dashdash": { "version": "1.14.1", "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz", @@ -696,6 +714,14 @@ "node": "*" } }, + "node_modules/object-assign": { + "version": "4.1.1", + "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz", + "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==", + "engines": { + "node": ">=0.10.0" + } + }, "node_modules/object-inspect": { "version": "1.13.2", "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.2.tgz", @@ -1214,6 +1240,15 @@ "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz", "integrity": "sha512-3lqz5YjWTYnW6dlDa5TLaTCcShfar1e40rmcJVwCBJC6mWlFuj0eCHIElmG1g5kyuJ/GD+8Wn4FFCcz4gJPfaQ==" }, + "cors": { + "version": "2.8.5", + "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz", + "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==", + "requires": { + "object-assign": "^4", + "vary": "^1" + } + }, "dashdash": { "version": "1.14.1", "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz", @@ -1596,6 +1631,11 @@ "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz", "integrity": "sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ==" }, + "object-assign": { + "version": "4.1.1", + "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz", + "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==" + }, "object-inspect": { "version": "1.13.2", "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.2.tgz", diff --git a/package.json b/package.json index 4a979bd..bbfbbf7 100644 --- a/package.json +++ b/package.json @@ -1,5 +1,6 @@ { "dependencies": { + "cors": "^2.8.5", "express": "^4.19.2", "request": "^2.88.2" }, @@ -7,7 +8,6 @@ "description": "", "version": "1.0.0", "main": "app.js", - "devDependencies": {}, "scripts": { "test": "echo \"Error: no test specified\" && exit 1" }, diff --git a/public/index.html b/public/index.html new file mode 100644 index 0000000..d7b7554 --- /dev/null +++ b/public/index.html @@ -0,0 +1,75 @@ + + + + + + 进度条示例 + + + + + + + + + diff --git a/server.js b/server.js deleted file mode 100644 index 032a475..0000000 --- a/server.js +++ /dev/null @@ -1,22 +0,0 @@ -const express = require('express'); -const request = require('request'); -const app = express(); -const port = 3000; - -app.use(express.static('public')); - -app.get('/data', (req, res) => { - request('https://www.luogu.com.cn/contest/169817?_contentOnly=1', (error, response, body) => { - if (!error && response.statusCode == 200) { - const data = JSON.parse(body); - const participants = data.currentData.contest.totalParticipants; - res.json({ participants: participants }); - } else { - res.status(500).send('Error fetching data'); - } - }); -}); - -app.listen(port, () => { - console.log(`Server running at http://localhost:${port}/`); -});