├── .gitignore
├── README.md
├── chatty.png
├── config
    ├── env.js
    ├── paths.js
    ├── polyfills.js
    ├── webpack.config.dev.js
    ├── webpack.config.prod.js
    └── webpackDevServer.config.js
├── geth
├── package-lock.json
├── package.json
├── public
    └── index.html
├── scripts
    ├── build.js
    └── start.js
└── src
    ├── App.js
    ├── actions
        └── index.js
    ├── global.styles.css
    ├── index.js
    ├── reducers
        └── index.js
    ├── utils
        └── index.js
    └── whisper.js


/.gitignore:
--------------------------------------------------------------------------------
 1 | # See https://help.github.com/ignore-files/ for more about ignoring files.
 2 | 
 3 | # dependencies
 4 | /node_modules
 5 | 
 6 | # testing
 7 | /coverage
 8 | 
 9 | # production
10 | /build
11 | /dist
12 | 
13 | # misc
14 | .DS_Store
15 | .env.local
16 | .env.development.local
17 | .env.test.local
18 | .env.production.local
19 | .key
20 | .crt
21 | 
22 | npm-debug.log*
23 | yarn-debug.log*
24 | yarn-error.log*
25 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Decentralized React Chat
 2 | 
 3 | ![](https://github.com/rodocite/decentralized-react-chat/blob/master/chatty.png)
 4 | 
 5 | The motivation for this project is to explore creating a decentralized app (DApp) using the Ethereum Blockchain Platform. It's my first decentralized application!
 6 | 
 7 | ## Whisper Protocol
 8 | The project uses the [Whisper Protocol](https://github.com/ethereum/wiki/wiki/Whisper) on Ethereum. It does not require Smart Contracts. Whisper uses a blockchain along with a distributed hash table (DHT) to provide secure, non-location based routing for communications. It supports unicast, multicast, and broadcast. Whisper's focus is security and is not meant to be performant-- although it is probably sufficient in most use-cases for light communication.
 9 | 
10 | ## Communication Flow Summary
11 | Two or more users would share a topic, a symmetrical key, and respective public keys with each other. All three are hashed together and sent into a DHT. The protocol listens to messages matching those hashes. When a match is found, the messages are routed to the parties listening.
12 | 
13 | ## Project Details
14 | The project is an unpacked `create-react-app` and uses the [Web3.js](https://github.com/ethereum/web3.js/) library to communicate with a local `geth` process. [geth](https://github.com/ethereum/go-ethereum/wiki/geth) is a golang Ethereum runtime.
15 | 
16 | #### geth
17 | I've included the `geth` binary in the repo for convenience. A popular library [ganache](https://github.com/trufflesuite/ganache-cli) does not yet have a Whisper implementation so `geth` seemed like my only option.
18 | 
19 | The project runs `geth` in rpc development mode with websockets enabled. Websockets are required for the Whisper's subscribe functionality. Otherwise, the protocol would be limited to unicast only.
20 | 
21 | All the chat-related code is in `/src`.
22 | 
23 | #### Symmetrical Keys, Public Keys, Topics
24 | The project uses a static topic `0xffaadd11` as a common topic. However, the symmetrical key and the public keys are generated on mount. Users will need to join rooms via the symmetrical key -- called `Room Hash` in the application. Symmetrical keys, public keys, and topics are required to be in hexadecimal format when being sent into the protocol.
25 | 
26 | To display identities, I've "encapsulated" each message with a `name` required from each user. The client just splits it from the converted readable string coming back from Whisper.
27 | 
28 | #### Settings - TTL, Proof of Work, etc
29 | There are several settings for the protocol. For the most part, I kept them at default because they were ideal for a chat project. TTL, for example, is at 10 seconds.
30 | 
31 | I plan to start another project to go in depth with topics, hashes, pow, and much longer ttl. Possibly a Twitter style app.
32 | 
33 | #### Deploy Issues
34 | - Since `geth` does not support SSL, you need something like nginx to be able to deploy this app over https or write your own server certificates which is beyond the scope of this project.
35 | 
36 | - There is an issue w/ Dockerizing the project due to a Web3 websocket dependency pointing to a repo without a commit hash. I'm still investigating the issue.
37 | 
38 | - Note that Infura, a popular dapp deployment platform uses ganache under the hood and thus, does not support Whisper.
39 | 
40 | ## Running the Project
41 | Yarn seems to have issues with the Web3 library. Use `npm`.
42 | 
43 | ```
44 | npm install
45 | npm start
46 | ```
47 | 
48 | ## Todo
49 | - Write a wrapper for web3js.shh


--------------------------------------------------------------------------------
/chatty.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/rodocite/decentralized-react-chat/7cc0abcf493adfd476c99abb20716c88f4840fb3/chatty.png


--------------------------------------------------------------------------------
/config/env.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | const fs = require('fs');
 4 | const path = require('path');
 5 | const paths = require('./paths');
 6 | 
 7 | // Make sure that including paths.js after env.js will read .env variables.
 8 | delete require.cache[require.resolve('./paths')];
 9 | 
10 | const NODE_ENV = process.env.NODE_ENV;
11 | if (!NODE_ENV) {
12 |   throw new Error(
13 |     'The NODE_ENV environment variable is required but was not specified.'
14 |   );
15 | }
16 | 
17 | // https://github.com/bkeepers/dotenv#what-other-env-files-can-i-use
18 | var dotenvFiles = [
19 |   `${paths.dotenv}.${NODE_ENV}.local`,
20 |   `${paths.dotenv}.${NODE_ENV}`,
21 |   // Don't include `.env.local` for `test` environment
22 |   // since normally you expect tests to produce the same
23 |   // results for everyone
24 |   NODE_ENV !== 'test' && `${paths.dotenv}.local`,
25 |   paths.dotenv,
26 | ].filter(Boolean);
27 | 
28 | // Load environment variables from .env* files. Suppress warnings using silent
29 | // if this file is missing. dotenv will never modify any environment variables
30 | // that have already been set.  Variable expansion is supported in .env files.
31 | // https://github.com/motdotla/dotenv
32 | // https://github.com/motdotla/dotenv-expand
33 | dotenvFiles.forEach(dotenvFile => {
34 |   if (fs.existsSync(dotenvFile)) {
35 |     require('dotenv-expand')(
36 |       require('dotenv').config({
37 |         path: dotenvFile,
38 |       })
39 |     );
40 |   }
41 | });
42 | 
43 | // We support resolving modules according to `NODE_PATH`.
44 | // This lets you use absolute paths in imports inside large monorepos:
45 | // https://github.com/facebookincubator/create-react-app/issues/253.
46 | // It works similar to `NODE_PATH` in Node itself:
47 | // https://nodejs.org/api/modules.html#modules_loading_from_the_global_folders
48 | // Note that unlike in Node, only *relative* paths from `NODE_PATH` are honored.
49 | // Otherwise, we risk importing Node.js core modules into an app instead of Webpack shims.
50 | // https://github.com/facebookincubator/create-react-app/issues/1023#issuecomment-265344421
51 | // We also resolve them to make sure all tools using them work consistently.
52 | const appDirectory = fs.realpathSync(process.cwd());
53 | process.env.NODE_PATH = (process.env.NODE_PATH || '')
54 |   .split(path.delimiter)
55 |   .filter(folder => folder && !path.isAbsolute(folder))
56 |   .map(folder => path.resolve(appDirectory, folder))
57 |   .join(path.delimiter);
58 | 
59 | // Grab NODE_ENV and REACT_APP_* environment variables and prepare them to be
60 | // injected into the application via DefinePlugin in Webpack configuration.
61 | const REACT_APP = /^REACT_APP_/i;
62 | 
63 | function getClientEnvironment(publicUrl) {
64 |   const raw = Object.keys(process.env)
65 |     .filter(key => REACT_APP.test(key))
66 |     .reduce(
67 |       (env, key) => {
68 |         env[key] = process.env[key];
69 |         return env;
70 |       },
71 |       {
72 |         // Useful for determining whether we’re running in production mode.
73 |         // Most importantly, it switches React into the correct mode.
74 |         NODE_ENV: process.env.NODE_ENV || 'development',
75 |         // Useful for resolving the correct path to static assets in `public`.
76 |         // For example, <img src={process.env.PUBLIC_URL + '/img/logo.png'} />.
77 |         // This should only be used as an escape hatch. Normally you would put
78 |         // images into the `src` and `import` them in code to get their paths.
79 |         PUBLIC_URL: publicUrl,
80 |       }
81 |     );
82 |   // Stringify all values so we can feed into Webpack DefinePlugin
83 |   const stringified = {
84 |     'process.env': Object.keys(raw).reduce((env, key) => {
85 |       env[key] = JSON.stringify(raw[key]);
86 |       return env;
87 |     }, {}),
88 |   };
89 | 
90 |   return { raw, stringified };
91 | }
92 | 
93 | module.exports = getClientEnvironment;
94 | 


--------------------------------------------------------------------------------
/config/paths.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | const path = require('path');
 4 | const fs = require('fs');
 5 | const url = require('url');
 6 | 
 7 | // Make sure any symlinks in the project folder are resolved:
 8 | // https://github.com/facebookincubator/create-react-app/issues/637
 9 | const appDirectory = fs.realpathSync(process.cwd());
10 | const resolveApp = relativePath => path.resolve(appDirectory, relativePath);
11 | 
12 | const envPublicUrl = process.env.PUBLIC_URL;
13 | 
14 | function ensureSlash(path, needsSlash) {
15 |   const hasSlash = path.endsWith('/');
16 |   if (hasSlash && !needsSlash) {
17 |     return path.substr(path, path.length - 1);
18 |   } else if (!hasSlash && needsSlash) {
19 |     return `${path}/`;
20 |   } else {
21 |     return path;
22 |   }
23 | }
24 | 
25 | const getPublicUrl = appPackageJson =>
26 |   envPublicUrl || require(appPackageJson).homepage;
27 | 
28 | // We use `PUBLIC_URL` environment variable or "homepage" field to infer
29 | // "public path" at which the app is served.
30 | // Webpack needs to know it to put the right <script> hrefs into HTML even in
31 | // single-page apps that may serve index.html for nested URLs like /todos/42.
32 | // We can't use a relative path in HTML because we don't want to load something
33 | // like /todos/42/static/js/bundle.7289d.js. We have to know the root.
34 | function getServedPath(appPackageJson) {
35 |   const publicUrl = getPublicUrl(appPackageJson);
36 |   const servedUrl =
37 |     envPublicUrl || (publicUrl ? url.parse(publicUrl).pathname : '/');
38 |   return ensureSlash(servedUrl, true);
39 | }
40 | 
41 | // config after eject: we're in ./config/
42 | module.exports = {
43 |   dotenv: resolveApp('.env'),
44 |   appBuild: resolveApp('build'),
45 |   appPublic: resolveApp('public'),
46 |   appHtml: resolveApp('public/index.html'),
47 |   appIndexJs: resolveApp('src/index.js'),
48 |   appPackageJson: resolveApp('package.json'),
49 |   appSrc: resolveApp('src'),
50 |   yarnLockFile: resolveApp('yarn.lock'),
51 |   testsSetup: resolveApp('src/setupTests.js'),
52 |   appNodeModules: resolveApp('node_modules'),
53 |   publicUrl: getPublicUrl(resolveApp('package.json')),
54 |   servedPath: getServedPath(resolveApp('package.json')),
55 | };
56 | 


--------------------------------------------------------------------------------
/config/polyfills.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | if (typeof Promise === 'undefined') {
 4 |   // Rejection tracking prevents a common issue where React gets into an
 5 |   // inconsistent state due to an error, but it gets swallowed by a Promise,
 6 |   // and the user has no idea what causes React's erratic future behavior.
 7 |   require('promise/lib/rejection-tracking').enable();
 8 |   window.Promise = require('promise/lib/es6-extensions.js');
 9 | }
10 | 
11 | // fetch() polyfill for making API calls.
12 | require('whatwg-fetch');
13 | 
14 | // Object.assign() is commonly used with React.
15 | // It will use the native implementation if it's present and isn't buggy.
16 | Object.assign = require('object-assign');
17 | 
18 | // In tests, polyfill requestAnimationFrame since jsdom doesn't provide it yet.
19 | // We don't polyfill it in the browser--this is user's responsibility.
20 | if (process.env.NODE_ENV === 'test') {
21 |   require('raf').polyfill(global);
22 | }
23 | 


--------------------------------------------------------------------------------
/config/webpack.config.dev.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | const autoprefixer = require('autoprefixer');
  4 | const path = require('path');
  5 | const webpack = require('webpack');
  6 | const HtmlWebpackPlugin = require('html-webpack-plugin');
  7 | const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
  8 | const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
  9 | const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin');
 10 | const eslintFormatter = require('react-dev-utils/eslintFormatter');
 11 | const getClientEnvironment = require('./env');
 12 | const paths = require('./paths');
 13 | 
 14 | // Webpack uses `publicPath` to determine where the app is being served from.
 15 | // In development, we always serve from the root. This makes config easier.
 16 | const publicPath = '/';
 17 | // `publicUrl` is just like `publicPath`, but we will provide it to our app
 18 | // as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
 19 | // Omit trailing slash as %PUBLIC_PATH%/xyz looks better than %PUBLIC_PATH%xyz.
 20 | const publicUrl = '';
 21 | // Get environment variables to inject into our app.
 22 | const env = getClientEnvironment(publicUrl);
 23 | 
 24 | // This is the development configuration.
 25 | // It is focused on developer experience and fast rebuilds.
 26 | // The production configuration is different and lives in a separate file.
 27 | module.exports = {
 28 |   // You may want 'eval' instead if you prefer to see the compiled output in DevTools.
 29 |   // See the discussion in https://github.com/facebookincubator/create-react-app/issues/343.
 30 |   devtool: 'cheap-module-source-map',
 31 |   // These are the "entry points" to our application.
 32 |   // This means they will be the "root" imports that are included in JS bundle.
 33 |   // The first two entry points enable "hot" CSS and auto-refreshes for JS.
 34 |   entry: [
 35 |     // We ship a few polyfills by default:
 36 |     require.resolve('./polyfills'),
 37 |     // Include an alternative client for WebpackDevServer. A client's job is to
 38 |     // connect to WebpackDevServer by a socket and get notified about changes.
 39 |     // When you save a file, the client will either apply hot updates (in case
 40 |     // of CSS changes), or refresh the page (in case of JS changes). When you
 41 |     // make a syntax error, this client will display a syntax error overlay.
 42 |     // Note: instead of the default WebpackDevServer client, we use a custom one
 43 |     // to bring better experience for Create React App users. You can replace
 44 |     // the line below with these two lines if you prefer the stock client:
 45 |     // require.resolve('webpack-dev-server/client') + '?/',
 46 |     // require.resolve('webpack/hot/dev-server'),
 47 |     require.resolve('react-dev-utils/webpackHotDevClient'),
 48 |     // Finally, this is your app's code:
 49 |     paths.appIndexJs,
 50 |     // We include the app code last so that if there is a runtime error during
 51 |     // initialization, it doesn't blow up the WebpackDevServer client, and
 52 |     // changing JS code would still trigger a refresh.
 53 |   ],
 54 |   output: {
 55 |     // Add /* filename */ comments to generated require()s in the output.
 56 |     pathinfo: true,
 57 |     // This does not produce a real file. It's just the virtual path that is
 58 |     // served by WebpackDevServer in development. This is the JS bundle
 59 |     // containing code from all our entry points, and the Webpack runtime.
 60 |     filename: 'static/js/bundle.js',
 61 |     // There are also additional JS chunk files if you use code splitting.
 62 |     chunkFilename: 'static/js/[name].chunk.js',
 63 |     // This is the URL that app is served from. We use "/" in development.
 64 |     publicPath: publicPath,
 65 |     // Point sourcemap entries to original disk location (format as URL on Windows)
 66 |     devtoolModuleFilenameTemplate: info =>
 67 |       path.resolve(info.absoluteResourcePath).replace(/\\/g, '/'),
 68 |   },
 69 |   resolve: {
 70 |     // This allows you to set a fallback for where Webpack should look for modules.
 71 |     // We placed these paths second because we want `node_modules` to "win"
 72 |     // if there are any conflicts. This matches Node resolution mechanism.
 73 |     // https://github.com/facebookincubator/create-react-app/issues/253
 74 |     modules: ['node_modules', paths.appNodeModules].concat(
 75 |       // It is guaranteed to exist because we tweak it in `env.js`
 76 |       process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
 77 |     ),
 78 |     // These are the reasonable defaults supported by the Node ecosystem.
 79 |     // We also include JSX as a common component filename extension to support
 80 |     // some tools, although we do not recommend using it, see:
 81 |     // https://github.com/facebookincubator/create-react-app/issues/290
 82 |     // `web` extension prefixes have been added for better support
 83 |     // for React Native Web.
 84 |     extensions: ['.web.js', '.mjs', '.js', '.json', '.web.jsx', '.jsx'],
 85 |     alias: {
 86 | 
 87 |       // Support React Native Web
 88 |       // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
 89 |       'react-native': 'react-native-web',
 90 |     },
 91 |     plugins: [
 92 |     ],
 93 |   },
 94 |   module: {
 95 |     strictExportPresence: true,
 96 |     rules: [
 97 |       // TODO: Disable require.ensure as it's not a standard language feature.
 98 |       // We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176.
 99 |       // { parser: { requireEnsure: false } },
100 | 
101 |       // First, run the linter.
102 |       // It's important to do this before Babel processes the JS.
103 |       {
104 |         test: /\.(js|jsx|mjs)$/,
105 |         enforce: 'pre',
106 |         use: [
107 |           {
108 |             options: {
109 |               formatter: eslintFormatter,
110 |               eslintPath: require.resolve('eslint'),
111 | 
112 |             },
113 |             loader: require.resolve('eslint-loader'),
114 |           },
115 |         ],
116 |         include: paths.appSrc,
117 |       },
118 |       {
119 |         // "oneOf" will traverse all following loaders until one will
120 |         // match the requirements. When no loader matches it will fall
121 |         // back to the "file" loader at the end of the loader list.
122 |         oneOf: [
123 |           // "url" loader works like "file" loader except that it embeds assets
124 |           // smaller than specified limit in bytes as data URLs to avoid requests.
125 |           // A missing `test` is equivalent to a match.
126 |           {
127 |             test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
128 |             loader: require.resolve('url-loader'),
129 |             options: {
130 |               limit: 10000,
131 |               name: 'static/media/[name].[hash:8].[ext]',
132 |             },
133 |           },
134 |           // Process JS with Babel.
135 |           {
136 |             test: /\.(js|jsx|mjs)$/,
137 |             include: paths.appSrc,
138 |             loader: require.resolve('babel-loader'),
139 |             options: {
140 | 
141 |               // This is a feature of `babel-loader` for webpack (not Babel itself).
142 |               // It enables caching results in ./node_modules/.cache/babel-loader/
143 |               // directory for faster rebuilds.
144 |               cacheDirectory: true,
145 |             },
146 |           },
147 |           // "postcss" loader applies autoprefixer to our CSS.
148 |           // "css" loader resolves paths in CSS and adds assets as dependencies.
149 |           // "style" loader turns CSS into JS modules that inject <style> tags.
150 |           // In production, we use a plugin to extract that CSS to a file, but
151 |           // in development "style" loader enables hot editing of CSS.
152 |           {
153 |             test: /\.css$/,
154 |             use: [
155 |               require.resolve('style-loader'),
156 |               {
157 |                 loader: require.resolve('css-loader'),
158 |                 options: {
159 |                   importLoaders: 1,
160 |                 },
161 |               },
162 |               {
163 |                 loader: require.resolve('postcss-loader'),
164 |                 options: {
165 |                   // Necessary for external CSS imports to work
166 |                   // https://github.com/facebookincubator/create-react-app/issues/2677
167 |                   ident: 'postcss',
168 |                   plugins: () => [
169 |                     require('postcss-flexbugs-fixes'),
170 |                     autoprefixer({
171 |                       browsers: [
172 |                         '>1%',
173 |                         'last 4 versions',
174 |                         'Firefox ESR',
175 |                         'not ie < 9', // React doesn't support IE8 anyway
176 |                       ],
177 |                       flexbox: 'no-2009',
178 |                     }),
179 |                   ],
180 |                 },
181 |               },
182 |             ],
183 |           },
184 |           // "file" loader makes sure those assets get served by WebpackDevServer.
185 |           // When you `import` an asset, you get its (virtual) filename.
186 |           // In production, they would get copied to the `build` folder.
187 |           // This loader doesn't use a "test" so it will catch all modules
188 |           // that fall through the other loaders.
189 |           {
190 |             // Exclude `js` files to keep "css" loader working as it injects
191 |             // its runtime that would otherwise processed through "file" loader.
192 |             // Also exclude `html` and `json` extensions so they get processed
193 |             // by webpacks internal loaders.
194 |             exclude: [/\.(js|jsx|mjs)$/, /\.html$/, /\.json$/],
195 |             loader: require.resolve('file-loader'),
196 |             options: {
197 |               name: 'static/media/[name].[hash:8].[ext]',
198 |             },
199 |           },
200 |         ],
201 |       },
202 |       // ** STOP ** Are you adding a new loader?
203 |       // Make sure to add the new loader(s) before the "file" loader.
204 |     ],
205 |   },
206 |   plugins: [
207 |     // Makes some environment variables available in index.html.
208 |     // The public URL is available as %PUBLIC_URL% in index.html, e.g.:
209 |     // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
210 |     // In development, this will be an empty string.
211 |     new InterpolateHtmlPlugin(env.raw),
212 |     // Generates an `index.html` file with the <script> injected.
213 |     new HtmlWebpackPlugin({
214 |       inject: true,
215 |       template: paths.appHtml,
216 |     }),
217 |     // Add module names to factory functions so they appear in browser profiler.
218 |     new webpack.NamedModulesPlugin(),
219 |     // Makes some environment variables available to the JS code, for example:
220 |     // if (process.env.NODE_ENV === 'development') { ... }. See `./env.js`.
221 |     new webpack.DefinePlugin(env.stringified),
222 |     // This is necessary to emit hot updates (currently CSS only):
223 |     new webpack.HotModuleReplacementPlugin(),
224 |     // Watcher doesn't work well if you mistype casing in a path so we use
225 |     // a plugin that prints an error when you attempt to do this.
226 |     // See https://github.com/facebookincubator/create-react-app/issues/240
227 |     new CaseSensitivePathsPlugin(),
228 |     // If you require a missing module and then `npm install` it, you still have
229 |     // to restart the development server for Webpack to discover it. This plugin
230 |     // makes the discovery automatic so you don't have to restart.
231 |     // See https://github.com/facebookincubator/create-react-app/issues/186
232 |     new WatchMissingNodeModulesPlugin(paths.appNodeModules),
233 |     // Moment.js is an extremely popular library that bundles large locale files
234 |     // by default due to how Webpack interprets its code. This is a practical
235 |     // solution that requires the user to opt into importing specific locales.
236 |     // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
237 |     // You can remove this if you don't use Moment.js:
238 |     new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
239 |   ],
240 |   // Some libraries import Node modules but don't use them in the browser.
241 |   // Tell Webpack to provide empty mocks for them so importing them works.
242 |   node: {
243 |     dgram: 'empty',
244 |     fs: 'empty',
245 |     net: 'empty',
246 |     tls: 'empty',
247 |     child_process: 'empty',
248 |   },
249 |   // Turn off performance hints during development because we don't do any
250 |   // splitting or minification in interest of speed. These warnings become
251 |   // cumbersome.
252 |   performance: {
253 |     hints: false,
254 |   },
255 | };
256 | 


--------------------------------------------------------------------------------
/config/webpack.config.prod.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | const autoprefixer = require('autoprefixer');
  4 | const path = require('path');
  5 | const webpack = require('webpack');
  6 | const HtmlWebpackPlugin = require('html-webpack-plugin');
  7 | const ExtractTextPlugin = require('extract-text-webpack-plugin');
  8 | const ManifestPlugin = require('webpack-manifest-plugin');
  9 | const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
 10 | const SWPrecacheWebpackPlugin = require('sw-precache-webpack-plugin');
 11 | const eslintFormatter = require('react-dev-utils/eslintFormatter');
 12 | const paths = require('./paths');
 13 | const getClientEnvironment = require('./env');
 14 | 
 15 | // Webpack uses `publicPath` to determine where the app is being served from.
 16 | // It requires a trailing slash, or the file assets will get an incorrect path.
 17 | const publicPath = paths.servedPath;
 18 | // Some apps do not use client-side routing with pushState.
 19 | // For these, "homepage" can be set to "." to enable relative asset paths.
 20 | const shouldUseRelativeAssetPaths = publicPath === './';
 21 | // Source maps are resource heavy and can cause out of memory issue for large source files.
 22 | const shouldUseSourceMap = process.env.GENERATE_SOURCEMAP !== 'false';
 23 | // `publicUrl` is just like `publicPath`, but we will provide it to our app
 24 | // as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
 25 | // Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
 26 | const publicUrl = publicPath.slice(0, -1);
 27 | // Get environment variables to inject into our app.
 28 | const env = getClientEnvironment(publicUrl);
 29 | 
 30 | // Assert this just to be safe.
 31 | // Development builds of React are slow and not intended for production.
 32 | if (env.stringified['process.env'].NODE_ENV !== '"production"') {
 33 |   throw new Error('Production builds must have NODE_ENV=production.');
 34 | }
 35 | 
 36 | // Note: defined here because it will be used more than once.
 37 | const cssFilename = 'static/css/[name].[contenthash:8].css';
 38 | 
 39 | // ExtractTextPlugin expects the build output to be flat.
 40 | // (See https://github.com/webpack-contrib/extract-text-webpack-plugin/issues/27)
 41 | // However, our output is structured with css, js and media folders.
 42 | // To have this structure working with relative paths, we have to use custom options.
 43 | const extractTextPluginOptions = shouldUseRelativeAssetPaths
 44 |   ? // Making sure that the publicPath goes back to to build folder.
 45 |     { publicPath: Array(cssFilename.split('/').length).join('../') }
 46 |   : {};
 47 | 
 48 | // This is the production configuration.
 49 | // It compiles slowly and is focused on producing a fast and minimal bundle.
 50 | // The development configuration is different and lives in a separate file.
 51 | module.exports = {
 52 |   // Don't attempt to continue if there are any errors.
 53 |   bail: true,
 54 |   // We generate sourcemaps in production. This is slow but gives good results.
 55 |   // You can exclude the *.map files from the build during deployment.
 56 |   devtool: shouldUseSourceMap ? 'source-map' : false,
 57 |   // In production, we only want to load the polyfills and the app code.
 58 |   entry: [require.resolve('./polyfills'), paths.appIndexJs],
 59 |   output: {
 60 |     // The build folder.
 61 |     path: paths.appBuild,
 62 |     // Generated JS file names (with nested folders).
 63 |     // There will be one main bundle, and one file per asynchronous chunk.
 64 |     // We don't currently advertise code splitting but Webpack supports it.
 65 |     filename: 'static/js/[name].[chunkhash:8].js',
 66 |     chunkFilename: 'static/js/[name].[chunkhash:8].chunk.js',
 67 |     // We inferred the "public path" (such as / or /my-project) from homepage.
 68 |     publicPath: publicPath,
 69 |     // Point sourcemap entries to original disk location (format as URL on Windows)
 70 |     devtoolModuleFilenameTemplate: info =>
 71 |       path
 72 |         .relative(paths.appSrc, info.absoluteResourcePath)
 73 |         .replace(/\\/g, '/'),
 74 |   },
 75 |   resolve: {
 76 |     // This allows you to set a fallback for where Webpack should look for modules.
 77 |     // We placed these paths second because we want `node_modules` to "win"
 78 |     // if there are any conflicts. This matches Node resolution mechanism.
 79 |     // https://github.com/facebookincubator/create-react-app/issues/253
 80 |     modules: ['node_modules', paths.appNodeModules].concat(
 81 |       // It is guaranteed to exist because we tweak it in `env.js`
 82 |       process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
 83 |     ),
 84 |     // These are the reasonable defaults supported by the Node ecosystem.
 85 |     // We also include JSX as a common component filename extension to support
 86 |     // some tools, although we do not recommend using it, see:
 87 |     // https://github.com/facebookincubator/create-react-app/issues/290
 88 |     // `web` extension prefixes have been added for better support
 89 |     // for React Native Web.
 90 |     extensions: ['.web.js', '.mjs', '.js', '.json', '.web.jsx', '.jsx'],
 91 |     alias: {
 92 | 
 93 |       // Support React Native Web
 94 |       // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
 95 |       'react-native': 'react-native-web',
 96 |     },
 97 |     plugins: [
 98 |     ],
 99 |   },
100 |   module: {
101 |     strictExportPresence: true,
102 |     rules: [
103 |       // TODO: Disable require.ensure as it's not a standard language feature.
104 |       // We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176.
105 |       // { parser: { requireEnsure: false } },
106 | 
107 |       // First, run the linter.
108 |       // It's important to do this before Babel processes the JS.
109 |       {
110 |         test: /\.(js|jsx|mjs)$/,
111 |         enforce: 'pre',
112 |         use: [
113 |           {
114 |             options: {
115 |               formatter: eslintFormatter,
116 |               eslintPath: require.resolve('eslint'),
117 | 
118 |             },
119 |             loader: require.resolve('eslint-loader'),
120 |           },
121 |         ],
122 |         include: paths.appSrc,
123 |       },
124 |       {
125 |         // "oneOf" will traverse all following loaders until one will
126 |         // match the requirements. When no loader matches it will fall
127 |         // back to the "file" loader at the end of the loader list.
128 |         oneOf: [
129 |           // "url" loader works just like "file" loader but it also embeds
130 |           // assets smaller than specified size as data URLs to avoid requests.
131 |           {
132 |             test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
133 |             loader: require.resolve('url-loader'),
134 |             options: {
135 |               limit: 10000,
136 |               name: 'static/media/[name].[hash:8].[ext]',
137 |             },
138 |           },
139 |           // Process JS with Babel.
140 |           {
141 |             test: /\.(js|jsx|mjs)$/,
142 |             include: paths.appSrc,
143 |             loader: require.resolve('babel-loader'),
144 |             options: {
145 | 
146 |               compact: true,
147 |             },
148 |           },
149 |           // The notation here is somewhat confusing.
150 |           // "postcss" loader applies autoprefixer to our CSS.
151 |           // "css" loader resolves paths in CSS and adds assets as dependencies.
152 |           // "style" loader normally turns CSS into JS modules injecting <style>,
153 |           // but unlike in development configuration, we do something different.
154 |           // `ExtractTextPlugin` first applies the "postcss" and "css" loaders
155 |           // (second argument), then grabs the result CSS and puts it into a
156 |           // separate file in our build process. This way we actually ship
157 |           // a single CSS file in production instead of JS code injecting <style>
158 |           // tags. If you use code splitting, however, any async bundles will still
159 |           // use the "style" loader inside the async code so CSS from them won't be
160 |           // in the main CSS file.
161 |           {
162 |             test: /\.css$/,
163 |             loader: ExtractTextPlugin.extract(
164 |               Object.assign(
165 |                 {
166 |                   fallback: {
167 |                     loader: require.resolve('style-loader'),
168 |                     options: {
169 |                       hmr: false,
170 |                     },
171 |                   },
172 |                   use: [
173 |                     {
174 |                       loader: require.resolve('css-loader'),
175 |                       options: {
176 |                         importLoaders: 1,
177 |                         minimize: true,
178 |                         sourceMap: shouldUseSourceMap,
179 |                       },
180 |                     },
181 |                     {
182 |                       loader: require.resolve('postcss-loader'),
183 |                       options: {
184 |                         // Necessary for external CSS imports to work
185 |                         // https://github.com/facebookincubator/create-react-app/issues/2677
186 |                         ident: 'postcss',
187 |                         plugins: () => [
188 |                           require('postcss-flexbugs-fixes'),
189 |                           autoprefixer({
190 |                             browsers: [
191 |                               '>1%',
192 |                               'last 4 versions',
193 |                               'Firefox ESR',
194 |                               'not ie < 9', // React doesn't support IE8 anyway
195 |                             ],
196 |                             flexbox: 'no-2009',
197 |                           }),
198 |                         ],
199 |                       },
200 |                     },
201 |                   ],
202 |                 },
203 |                 extractTextPluginOptions
204 |               )
205 |             ),
206 |             // Note: this won't work without `new ExtractTextPlugin()` in `plugins`.
207 |           },
208 |           // "file" loader makes sure assets end up in the `build` folder.
209 |           // When you `import` an asset, you get its filename.
210 |           // This loader doesn't use a "test" so it will catch all modules
211 |           // that fall through the other loaders.
212 |           {
213 |             loader: require.resolve('file-loader'),
214 |             // Exclude `js` files to keep "css" loader working as it injects
215 |             // it's runtime that would otherwise processed through "file" loader.
216 |             // Also exclude `html` and `json` extensions so they get processed
217 |             // by webpacks internal loaders.
218 |             exclude: [/\.(js|jsx|mjs)$/, /\.html$/, /\.json$/],
219 |             options: {
220 |               name: 'static/media/[name].[hash:8].[ext]',
221 |             },
222 |           },
223 |           // ** STOP ** Are you adding a new loader?
224 |           // Make sure to add the new loader(s) before the "file" loader.
225 |         ],
226 |       },
227 |     ],
228 |   },
229 |   plugins: [
230 |     // Makes some environment variables available in index.html.
231 |     // The public URL is available as %PUBLIC_URL% in index.html, e.g.:
232 |     // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
233 |     // In production, it will be an empty string unless you specify "homepage"
234 |     // in `package.json`, in which case it will be the pathname of that URL.
235 |     new InterpolateHtmlPlugin(env.raw),
236 |     // Generates an `index.html` file with the <script> injected.
237 |     new HtmlWebpackPlugin({
238 |       inject: true,
239 |       template: paths.appHtml,
240 |       minify: {
241 |         removeComments: true,
242 |         collapseWhitespace: true,
243 |         removeRedundantAttributes: true,
244 |         useShortDoctype: true,
245 |         removeEmptyAttributes: true,
246 |         removeStyleLinkTypeAttributes: true,
247 |         keepClosingSlash: true,
248 |         minifyJS: true,
249 |         minifyCSS: true,
250 |         minifyURLs: true,
251 |       },
252 |     }),
253 |     // Makes some environment variables available to the JS code, for example:
254 |     // if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
255 |     // It is absolutely essential that NODE_ENV was set to production here.
256 |     // Otherwise React will be compiled in the very slow development mode.
257 |     new webpack.DefinePlugin(env.stringified),
258 |     // Minify the code.
259 |     new webpack.optimize.UglifyJsPlugin({
260 |       compress: {
261 |         warnings: false,
262 |         // Disabled because of an issue with Uglify breaking seemingly valid code:
263 |         // https://github.com/facebookincubator/create-react-app/issues/2376
264 |         // Pending further investigation:
265 |         // https://github.com/mishoo/UglifyJS2/issues/2011
266 |         comparisons: false,
267 |       },
268 |       mangle: {
269 |         safari10: true,
270 |       },
271 |       output: {
272 |         comments: false,
273 |         // Turned on because emoji and regex is not minified properly using default
274 |         // https://github.com/facebookincubator/create-react-app/issues/2488
275 |         ascii_only: true,
276 |       },
277 |       sourceMap: shouldUseSourceMap,
278 |     }),
279 |     // Note: this won't work without ExtractTextPlugin.extract(..) in `loaders`.
280 |     new ExtractTextPlugin({
281 |       filename: cssFilename,
282 |     }),
283 |     // Generate a manifest file which contains a mapping of all asset filenames
284 |     // to their corresponding output file so that tools can pick it up without
285 |     // having to parse `index.html`.
286 |     new ManifestPlugin({
287 |       fileName: 'asset-manifest.json',
288 |     }),
289 |     // Generate a service worker script that will precache, and keep up to date,
290 |     // the HTML & assets that are part of the Webpack build.
291 |     new SWPrecacheWebpackPlugin({
292 |       // By default, a cache-busting query parameter is appended to requests
293 |       // used to populate the caches, to ensure the responses are fresh.
294 |       // If a URL is already hashed by Webpack, then there is no concern
295 |       // about it being stale, and the cache-busting can be skipped.
296 |       dontCacheBustUrlsMatching: /\.\w{8}\./,
297 |       filename: 'service-worker.js',
298 |       logger(message) {
299 |         if (message.indexOf('Total precache size is') === 0) {
300 |           // This message occurs for every build and is a bit too noisy.
301 |           return;
302 |         }
303 |         if (message.indexOf('Skipping static resource') === 0) {
304 |           // This message obscures real errors so we ignore it.
305 |           // https://github.com/facebookincubator/create-react-app/issues/2612
306 |           return;
307 |         }
308 |         console.log(message);
309 |       },
310 |       minify: true,
311 |       // For unknown URLs, fallback to the index page
312 |       navigateFallback: publicUrl + '/index.html',
313 |       // Ignores URLs starting from /__ (useful for Firebase):
314 |       // https://github.com/facebookincubator/create-react-app/issues/2237#issuecomment-302693219
315 |       navigateFallbackWhitelist: [/^(?!\/__).*/],
316 |       // Don't precache sourcemaps (they're large) and build asset manifest:
317 |       staticFileGlobsIgnorePatterns: [/\.map$/, /asset-manifest\.json$/],
318 |     }),
319 |     // Moment.js is an extremely popular library that bundles large locale files
320 |     // by default due to how Webpack interprets its code. This is a practical
321 |     // solution that requires the user to opt into importing specific locales.
322 |     // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
323 |     // You can remove this if you don't use Moment.js:
324 |     new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
325 |   ],
326 |   // Some libraries import Node modules but don't use them in the browser.
327 |   // Tell Webpack to provide empty mocks for them so importing them works.
328 |   node: {
329 |     dgram: 'empty',
330 |     fs: 'empty',
331 |     net: 'empty',
332 |     tls: 'empty',
333 |     child_process: 'empty',
334 |   },
335 | };
336 | 


--------------------------------------------------------------------------------
/config/webpackDevServer.config.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | const errorOverlayMiddleware = require('react-dev-utils/errorOverlayMiddleware');
 4 | const noopServiceWorkerMiddleware = require('react-dev-utils/noopServiceWorkerMiddleware');
 5 | const ignoredFiles = require('react-dev-utils/ignoredFiles');
 6 | const config = require('./webpack.config.dev');
 7 | const paths = require('./paths');
 8 | 
 9 | const protocol = process.env.HTTPS === 'true' ? 'https' : 'http';
10 | const host = process.env.HOST || '0.0.0.0';
11 | 
12 | module.exports = function(proxy, allowedHost) {
13 |   return {
14 |     // WebpackDevServer 2.4.3 introduced a security fix that prevents remote
15 |     // websites from potentially accessing local content through DNS rebinding:
16 |     // https://github.com/webpack/webpack-dev-server/issues/887
17 |     // https://medium.com/webpack/webpack-dev-server-middleware-security-issues-1489d950874a
18 |     // However, it made several existing use cases such as development in cloud
19 |     // environment or subdomains in development significantly more complicated:
20 |     // https://github.com/facebookincubator/create-react-app/issues/2271
21 |     // https://github.com/facebookincubator/create-react-app/issues/2233
22 |     // While we're investigating better solutions, for now we will take a
23 |     // compromise. Since our WDS configuration only serves files in the `public`
24 |     // folder we won't consider accessing them a vulnerability. However, if you
25 |     // use the `proxy` feature, it gets more dangerous because it can expose
26 |     // remote code execution vulnerabilities in backends like Django and Rails.
27 |     // So we will disable the host check normally, but enable it if you have
28 |     // specified the `proxy` setting. Finally, we let you override it if you
29 |     // really know what you're doing with a special environment variable.
30 |     disableHostCheck:
31 |       !proxy || process.env.DANGEROUSLY_DISABLE_HOST_CHECK === 'true',
32 |     // Enable gzip compression of generated files.
33 |     compress: true,
34 |     // Silence WebpackDevServer's own logs since they're generally not useful.
35 |     // It will still show compile warnings and errors with this setting.
36 |     clientLogLevel: 'none',
37 |     // By default WebpackDevServer serves physical files from current directory
38 |     // in addition to all the virtual build products that it serves from memory.
39 |     // This is confusing because those files won’t automatically be available in
40 |     // production build folder unless we copy them. However, copying the whole
41 |     // project directory is dangerous because we may expose sensitive files.
42 |     // Instead, we establish a convention that only files in `public` directory
43 |     // get served. Our build script will copy `public` into the `build` folder.
44 |     // In `index.html`, you can get URL of `public` folder with %PUBLIC_URL%:
45 |     // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
46 |     // In JavaScript code, you can access it with `process.env.PUBLIC_URL`.
47 |     // Note that we only recommend to use `public` folder as an escape hatch
48 |     // for files like `favicon.ico`, `manifest.json`, and libraries that are
49 |     // for some reason broken when imported through Webpack. If you just want to
50 |     // use an image, put it in `src` and `import` it from JavaScript instead.
51 |     contentBase: paths.appPublic,
52 |     // By default files from `contentBase` will not trigger a page reload.
53 |     watchContentBase: true,
54 |     // Enable hot reloading server. It will provide /sockjs-node/ endpoint
55 |     // for the WebpackDevServer client so it can learn when the files were
56 |     // updated. The WebpackDevServer client is included as an entry point
57 |     // in the Webpack development configuration. Note that only changes
58 |     // to CSS are currently hot reloaded. JS changes will refresh the browser.
59 |     hot: true,
60 |     // It is important to tell WebpackDevServer to use the same "root" path
61 |     // as we specified in the config. In development, we always serve from /.
62 |     publicPath: config.output.publicPath,
63 |     // WebpackDevServer is noisy by default so we emit custom message instead
64 |     // by listening to the compiler events with `compiler.plugin` calls above.
65 |     quiet: true,
66 |     // Reportedly, this avoids CPU overload on some systems.
67 |     // https://github.com/facebookincubator/create-react-app/issues/293
68 |     // src/node_modules is not ignored to support absolute imports
69 |     // https://github.com/facebookincubator/create-react-app/issues/1065
70 |     watchOptions: {
71 |       ignored: ignoredFiles(paths.appSrc),
72 |     },
73 |     // Enable HTTPS if the HTTPS environment variable is set to 'true'
74 |     https: protocol === 'https',
75 |     host: host,
76 |     overlay: false,
77 |     historyApiFallback: {
78 |       // Paths with dots should still use the history fallback.
79 |       // See https://github.com/facebookincubator/create-react-app/issues/387.
80 |       disableDotRule: true,
81 |     },
82 |     public: allowedHost,
83 |     proxy,
84 |     before(app) {
85 |       // This lets us open files from the runtime error overlay.
86 |       app.use(errorOverlayMiddleware());
87 |       // This service worker file is effectively a 'no-op' that will reset any
88 |       // previous service worker registered for the same host:port combination.
89 |       // We do this in development to avoid hitting the production cache if
90 |       // it used the same host and port.
91 |       // https://github.com/facebookincubator/create-react-app/issues/2272#issuecomment-302832432
92 |       app.use(noopServiceWorkerMiddleware());
93 |     },
94 |   };
95 | };
96 | 


--------------------------------------------------------------------------------
/geth:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/rodocite/decentralized-react-chat/7cc0abcf493adfd476c99abb20716c88f4840fb3/geth


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "decentralized-react-chat",
 3 |   "version": "0.1.0",
 4 |   "private": true,
 5 |   "author": "Rodolfo Yabut",
 6 |   "dependencies": {
 7 |     "autoprefixer": "7.1.6",
 8 |     "babel-core": "6.26.0",
 9 |     "babel-eslint": "7.2.3",
10 |     "babel-jest": "20.0.3",
11 |     "babel-loader": "7.1.2",
12 |     "babel-preset-react-app": "^3.1.1",
13 |     "babel-runtime": "6.26.0",
14 |     "case-sensitive-paths-webpack-plugin": "2.1.1",
15 |     "chalk": "1.1.3",
16 |     "css-loader": "0.28.7",
17 |     "dotenv": "4.0.0",
18 |     "dotenv-expand": "4.2.0",
19 |     "eslint": "4.10.0",
20 |     "eslint-config-react-app": "^2.1.0",
21 |     "eslint-loader": "1.9.0",
22 |     "eslint-plugin-flowtype": "2.39.1",
23 |     "eslint-plugin-import": "2.8.0",
24 |     "eslint-plugin-jsx-a11y": "5.1.1",
25 |     "eslint-plugin-react": "7.4.0",
26 |     "extract-text-webpack-plugin": "3.0.2",
27 |     "file-loader": "1.1.5",
28 |     "fs-extra": "3.0.1",
29 |     "html-webpack-plugin": "2.29.0",
30 |     "object-assign": "4.1.1",
31 |     "postcss-flexbugs-fixes": "3.2.0",
32 |     "postcss-loader": "2.0.8",
33 |     "promise": "8.0.1",
34 |     "raf": "3.4.0",
35 |     "react": "^16.3.1",
36 |     "react-copy-to-clipboard": "^5.0.1",
37 |     "react-dev-utils": "^5.0.1",
38 |     "react-dom": "^16.3.1",
39 |     "react-redux": "^5.0.7",
40 |     "redux": "^3.7.2",
41 |     "redux-logger": "^3.0.6",
42 |     "redux-promise": "^0.5.3",
43 |     "resolve": "1.6.0",
44 |     "style-loader": "0.19.0",
45 |     "styled-components": "^3.2.5",
46 |     "sw-precache-webpack-plugin": "0.11.4",
47 |     "url-loader": "0.6.2",
48 |     "web3": "^1.0.0-beta.33",
49 |     "webpack": "3.8.1",
50 |     "webpack-dev-server": "2.9.4",
51 |     "webpack-manifest-plugin": "1.3.2",
52 |     "whatwg-fetch": "2.0.3"
53 |   },
54 |   "scripts": {
55 |     "start": "./geth --rpc --shh --rpccorsdomain \"*\" --dev --ws --wsorigins \"*\" & node scripts/start.js"
56 |   },
57 |   "babel": {
58 |     "presets": [
59 |       "react-app"
60 |     ]
61 |   },
62 |   "eslintConfig": {
63 |     "extends": "react-app"
64 |   }
65 | }
66 | 


--------------------------------------------------------------------------------
/public/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 |   <head>
 4 |     <meta charset="utf-8">
 5 |     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 6 |     <meta name="theme-color" content="#000000">
 7 |     <link href="https://fonts.googleapis.com/css?family=Open+Sans" rel="stylesheet">
 8 |     <!--
 9 |       manifest.json provides metadata used when your web app is added to the
10 |       homescreen on Android. See https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/
11 |     -->
12 |     <link rel="manifest" href="%PUBLIC_URL%/manifest.json">
13 |     <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
14 |     <!--
15 |       Notice the use of %PUBLIC_URL% in the tags above.
16 |       It will be replaced with the URL of the `public` folder during the build.
17 |       Only files inside the `public` folder can be referenced from the HTML.
18 | 
19 |       Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
20 |       work correctly both with client-side routing and a non-root public URL.
21 |       Learn how to configure a non-root public URL by running `npm run build`.
22 |     -->
23 |     <title>React App</title>
24 |   </head>
25 |   <body>
26 |     <noscript>
27 |       You need to enable JavaScript to run this app.
28 |     </noscript>
29 |     <div id="root"></div>
30 |     <!--
31 |       This HTML file is a template.
32 |       If you open it directly in the browser, you will see an empty page.
33 | 
34 |       You can add webfonts, meta tags, or analytics to this file.
35 |       The build step will place the bundled scripts into the <body> tag.
36 | 
37 |       To begin the development, run `npm start` or `yarn start`.
38 |       To create a production bundle, use `npm run build` or `yarn build`.
39 |     -->
40 |   </body>
41 | </html>
42 | 


--------------------------------------------------------------------------------
/scripts/build.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | // Do this as the first thing so that any code reading it knows the right env.
  4 | process.env.BABEL_ENV = 'production';
  5 | process.env.NODE_ENV = 'production';
  6 | 
  7 | // Makes the script crash on unhandled rejections instead of silently
  8 | // ignoring them. In the future, promise rejections that are not handled will
  9 | // terminate the Node.js process with a non-zero exit code.
 10 | process.on('unhandledRejection', err => {
 11 |   throw err;
 12 | });
 13 | 
 14 | // Ensure environment variables are read.
 15 | require('../config/env');
 16 | 
 17 | const path = require('path');
 18 | const chalk = require('chalk');
 19 | const fs = require('fs-extra');
 20 | const webpack = require('webpack');
 21 | const config = require('../config/webpack.config.prod');
 22 | const paths = require('../config/paths');
 23 | const checkRequiredFiles = require('react-dev-utils/checkRequiredFiles');
 24 | const formatWebpackMessages = require('react-dev-utils/formatWebpackMessages');
 25 | const printHostingInstructions = require('react-dev-utils/printHostingInstructions');
 26 | const FileSizeReporter = require('react-dev-utils/FileSizeReporter');
 27 | const printBuildError = require('react-dev-utils/printBuildError');
 28 | 
 29 | const measureFileSizesBeforeBuild =
 30 |   FileSizeReporter.measureFileSizesBeforeBuild;
 31 | const printFileSizesAfterBuild = FileSizeReporter.printFileSizesAfterBuild;
 32 | const useYarn = fs.existsSync(paths.yarnLockFile);
 33 | 
 34 | // These sizes are pretty large. We'll warn for bundles exceeding them.
 35 | const WARN_AFTER_BUNDLE_GZIP_SIZE = 512 * 1024;
 36 | const WARN_AFTER_CHUNK_GZIP_SIZE = 1024 * 1024;
 37 | 
 38 | // Warn and crash if required files are missing
 39 | if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
 40 |   process.exit(1);
 41 | }
 42 | 
 43 | // First, read the current file sizes in build directory.
 44 | // This lets us display how much they changed later.
 45 | measureFileSizesBeforeBuild(paths.appBuild)
 46 |   .then(previousFileSizes => {
 47 |     // Remove all content but keep the directory so that
 48 |     // if you're in it, you don't end up in Trash
 49 |     fs.emptyDirSync(paths.appBuild);
 50 |     // Merge with the public folder
 51 |     copyPublicFolder();
 52 |     // Start the webpack build
 53 |     return build(previousFileSizes);
 54 |   })
 55 |   .then(
 56 |     ({ stats, previousFileSizes, warnings }) => {
 57 |       if (warnings.length) {
 58 |         console.log(chalk.yellow('Compiled with warnings.\n'));
 59 |         console.log(warnings.join('\n\n'));
 60 |         console.log(
 61 |           '\nSearch for the ' +
 62 |             chalk.underline(chalk.yellow('keywords')) +
 63 |             ' to learn more about each warning.'
 64 |         );
 65 |         console.log(
 66 |           'To ignore, add ' +
 67 |             chalk.cyan('// eslint-disable-next-line') +
 68 |             ' to the line before.\n'
 69 |         );
 70 |       } else {
 71 |         console.log(chalk.green('Compiled successfully.\n'));
 72 |       }
 73 | 
 74 |       console.log('File sizes after gzip:\n');
 75 |       printFileSizesAfterBuild(
 76 |         stats,
 77 |         previousFileSizes,
 78 |         paths.appBuild,
 79 |         WARN_AFTER_BUNDLE_GZIP_SIZE,
 80 |         WARN_AFTER_CHUNK_GZIP_SIZE
 81 |       );
 82 |       console.log();
 83 | 
 84 |       const appPackage = require(paths.appPackageJson);
 85 |       const publicUrl = paths.publicUrl;
 86 |       const publicPath = config.output.publicPath;
 87 |       const buildFolder = path.relative(process.cwd(), paths.appBuild);
 88 |       printHostingInstructions(
 89 |         appPackage,
 90 |         publicUrl,
 91 |         publicPath,
 92 |         buildFolder,
 93 |         useYarn
 94 |       );
 95 |     },
 96 |     err => {
 97 |       console.log(chalk.red('Failed to compile.\n'));
 98 |       printBuildError(err);
 99 |       process.exit(1);
100 |     }
101 |   );
102 | 
103 | // Create the production build and print the deployment instructions.
104 | function build(previousFileSizes) {
105 |   console.log('Creating an optimized production build...');
106 | 
107 |   let compiler = webpack(config);
108 |   return new Promise((resolve, reject) => {
109 |     compiler.run((err, stats) => {
110 |       if (err) {
111 |         return reject(err);
112 |       }
113 |       const messages = formatWebpackMessages(stats.toJson({}, true));
114 |       if (messages.errors.length) {
115 |         // Only keep the first error. Others are often indicative
116 |         // of the same problem, but confuse the reader with noise.
117 |         if (messages.errors.length > 1) {
118 |           messages.errors.length = 1;
119 |         }
120 |         return reject(new Error(messages.errors.join('\n\n')));
121 |       }
122 |       if (
123 |         process.env.CI &&
124 |         (typeof process.env.CI !== 'string' ||
125 |           process.env.CI.toLowerCase() !== 'false') &&
126 |         messages.warnings.length
127 |       ) {
128 |         console.log(
129 |           chalk.yellow(
130 |             '\nTreating warnings as errors because process.env.CI = true.\n' +
131 |               'Most CI servers set it automatically.\n'
132 |           )
133 |         );
134 |         return reject(new Error(messages.warnings.join('\n\n')));
135 |       }
136 |       return resolve({
137 |         stats,
138 |         previousFileSizes,
139 |         warnings: messages.warnings,
140 |       });
141 |     });
142 |   });
143 | }
144 | 
145 | function copyPublicFolder() {
146 |   fs.copySync(paths.appPublic, paths.appBuild, {
147 |     dereference: true,
148 |     filter: file => file !== paths.appHtml,
149 |   });
150 | }
151 | 


--------------------------------------------------------------------------------
/scripts/start.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | // Do this as the first thing so that any code reading it knows the right env.
  4 | process.env.BABEL_ENV = 'development';
  5 | process.env.NODE_ENV = 'development';
  6 | 
  7 | // Makes the script crash on unhandled rejections instead of silently
  8 | // ignoring them. In the future, promise rejections that are not handled will
  9 | // terminate the Node.js process with a non-zero exit code.
 10 | process.on('unhandledRejection', err => {
 11 |   throw err;
 12 | });
 13 | 
 14 | // Ensure environment variables are read.
 15 | require('../config/env');
 16 | 
 17 | const fs = require('fs');
 18 | const chalk = require('chalk');
 19 | const webpack = require('webpack');
 20 | const WebpackDevServer = require('webpack-dev-server');
 21 | const clearConsole = require('react-dev-utils/clearConsole');
 22 | const checkRequiredFiles = require('react-dev-utils/checkRequiredFiles');
 23 | const {
 24 |   choosePort,
 25 |   createCompiler,
 26 |   prepareProxy,
 27 |   prepareUrls,
 28 | } = require('react-dev-utils/WebpackDevServerUtils');
 29 | const openBrowser = require('react-dev-utils/openBrowser');
 30 | const paths = require('../config/paths');
 31 | const config = require('../config/webpack.config.dev');
 32 | const createDevServerConfig = require('../config/webpackDevServer.config');
 33 | 
 34 | const useYarn = fs.existsSync(paths.yarnLockFile);
 35 | const isInteractive = process.stdout.isTTY;
 36 | 
 37 | // Warn and crash if required files are missing
 38 | if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
 39 |   process.exit(1);
 40 | }
 41 | 
 42 | // Tools like Cloud9 rely on this.
 43 | const DEFAULT_PORT = parseInt(process.env.PORT, 10) || 3001;
 44 | const HOST = process.env.HOST || '0.0.0.0';
 45 | 
 46 | if (process.env.HOST) {
 47 |   console.log(
 48 |     chalk.cyan(
 49 |       `Attempting to bind to HOST environment variable: ${chalk.yellow(
 50 |         chalk.bold(process.env.HOST)
 51 |       )}`
 52 |     )
 53 |   );
 54 |   console.log(
 55 |     `If this was unintentional, check that you haven't mistakenly set it in your shell.`
 56 |   );
 57 |   console.log(`Learn more here: ${chalk.yellow('http://bit.ly/2mwWSwH')}`);
 58 |   console.log();
 59 | }
 60 | 
 61 | // We attempt to use the default port but if it is busy, we offer the user to
 62 | // run on a different port. `choosePort()` Promise resolves to the next free port.
 63 | choosePort(HOST, DEFAULT_PORT)
 64 |   .then(port => {
 65 |     if (port == null) {
 66 |       // We have not found a port.
 67 |       return;
 68 |     }
 69 |     const protocol = process.env.HTTPS === 'true' ? 'https' : 'http';
 70 |     const appName = require(paths.appPackageJson).name;
 71 |     const urls = prepareUrls(protocol, HOST, port);
 72 |     // Create a webpack compiler that is configured with custom messages.
 73 |     const compiler = createCompiler(webpack, config, appName, urls, useYarn);
 74 |     // Load proxy config
 75 |     const proxySetting = require(paths.appPackageJson).proxy;
 76 |     const proxyConfig = prepareProxy(proxySetting, paths.appPublic);
 77 |     // Serve webpack assets generated by the compiler over a web sever.
 78 |     const serverConfig = createDevServerConfig(
 79 |       proxyConfig,
 80 |       urls.lanUrlForConfig
 81 |     );
 82 |     const devServer = new WebpackDevServer(compiler, serverConfig);
 83 |     // Launch WebpackDevServer.
 84 |     devServer.listen(port, HOST, err => {
 85 |       if (err) {
 86 |         return console.log(err);
 87 |       }
 88 |       if (isInteractive) {
 89 |         clearConsole();
 90 |       }
 91 |       console.log(chalk.cyan('Starting the development server...\n'));
 92 |       openBrowser(urls.localUrlForBrowser);
 93 |     });
 94 | 
 95 |     ['SIGINT', 'SIGTERM'].forEach(function(sig) {
 96 |       process.on(sig, function() {
 97 |         devServer.close();
 98 |         process.exit();
 99 |       });
100 |     });
101 |   })
102 |   .catch(err => {
103 |     if (err && err.message) {
104 |       console.log(err.message);
105 |     }
106 |     process.exit(1);
107 |   });
108 | 


--------------------------------------------------------------------------------
/src/App.js:
--------------------------------------------------------------------------------
  1 | import React, { Component } from 'react'
  2 | import { findDOMNode } from 'react-dom'
  3 | import styled from 'styled-components'
  4 | import { setName } from './actions'
  5 | import { connect } from 'react-redux'
  6 | import { CopyToClipboard } from 'react-copy-to-clipboard'
  7 | 
  8 | class App extends Component {
  9 |   state = {
 10 |     copied: false,
 11 |     message: '',
 12 |     name: '',
 13 |     showOverlay: false,
 14 |     symKey: null,
 15 |     symKeyInput: ''
 16 |   }
 17 | 
 18 |   componentDidMount() {
 19 |     if (this.props.name) {
 20 |       this.subscribe(this.props.symKey)
 21 |     }
 22 |   }
 23 | 
 24 |   componentDidUpdate(newProps, state) {
 25 |     const chatboxEl = findDOMNode(this.chatbox)
 26 | 
 27 |     if (this.props.name !== newProps.name) {
 28 |       this.subscribe(this.props.symKey)
 29 |     }
 30 | 
 31 |     if (this.props.message.length !== newProps.message.length) {
 32 |       chatboxEl.scrollTo(0, chatboxEl.scrollHeight)
 33 |     }
 34 |   }
 35 | 
 36 |   subscribe(symKey) {
 37 |     this.props.subscribe(symKey, this.props.name)
 38 |     this.setState({ symKey, symKeyInput: '' })
 39 |   }
 40 | 
 41 |   postMessage(e) {
 42 |     const { postMessage, publicKey } = this.props
 43 |     const symKey = this.state.symKey || this.props.symKey
 44 |     postMessage(this.props.name, this.state.message, symKey, publicKey)
 45 |     this.setState({ message: '' })
 46 |   }
 47 | 
 48 |   showOverlay(show) {
 49 |     this.setState({ showOverlay: show })
 50 |   }
 51 | 
 52 |   renderNamePrompt() {
 53 |     return (
 54 |       <Container>
 55 |         <NamePrompt>
 56 |           <div>What's your name?</div>
 57 |           <ChatInput onChange={(e) => this.setState({ name: e.target.value })}/>
 58 |           <Button onClick={() => this.props.setName(this.state.name)}>Start Chat</Button>
 59 |         </NamePrompt>
 60 |       </Container>
 61 |     )
 62 |   }
 63 | 
 64 |   renderOverlay() {
 65 |     return (
 66 |       <RoomPrompt>
 67 |         <div>Enter Room Hash</div>
 68 |         <ChatInput onChange={(e) => this.setState({ symKeyInput: e.target.value })} />
 69 |         <div>
 70 |           <Button onClick={() => this.showOverlay(false)}>Cancel</Button>
 71 |           <Button onClick={() => {
 72 |             if (this.props.subscription !== this.state.symKeyInput)
 73 |             this.subscribe(this.state.symKeyInput)
 74 |             this.showOverlay(false)
 75 |           }}>Join Room</Button>
 76 |         </div>
 77 |       </RoomPrompt>
 78 |     )
 79 |   }
 80 | 
 81 |   renderMessages() {
 82 |     const { message } = this.props
 83 | 
 84 |     return message && message.map((m, index) => {
 85 |       const decapsulation = m.split('!encapsulation!')
 86 |       const name = decapsulation[1]
 87 |       const msg = decapsulation[0]
 88 | 
 89 |       return (
 90 |         <div key={ index }>
 91 |           <Name>{ name }</Name>
 92 |           <Message self={ this.props.name !== name }>{ msg }</Message>
 93 |         </div>
 94 |       )
 95 |     })
 96 |   }
 97 | 
 98 |   render() {
 99 |     const { name, symKeyID } = this.props
100 | 
101 |     return name ? (
102 |       <Container>
103 |         { this.state.showOverlay && this.renderOverlay() }
104 | 
105 |         <SubscriptionSection>
106 |           <RoomHash className="hash">{ this.state.symKey || symKeyID }</RoomHash>
107 |           <CopyToClipboard
108 |             text={ this.state.symKey || symKeyID }
109 |             onCopy={() => this.setState({copied: true})}
110 |           >
111 |             <Button>Copy Hash</Button>
112 |           </CopyToClipboard>
113 |           <Button onClick={() => this.showOverlay(true)}>Switch Rooms</Button>
114 |         </SubscriptionSection>
115 | 
116 |         <Chatbox ref={(el) => this.chatbox = el}>
117 |           { this.renderMessages() }
118 |         </Chatbox>
119 | 
120 |         <InputContainer>
121 |           <ChatInput
122 |             placeholder="Write a message..."
123 |             onChange={(e) => this.setState({ message: e.target.value })}
124 |             value={ this.state.message }
125 |             onKeyPress={(e) => {
126 |               if (e.key !== 'Enter') return
127 |               this.postMessage(e)
128 |             }}
129 |           />
130 | 
131 |           <SendButton
132 |             onClick={(e) => this.postMessage(e)}
133 |             active={ this.state.message }>Send</SendButton>
134 |         </InputContainer>
135 |       </Container>
136 |     ) : this.renderNamePrompt()
137 |   }
138 | }
139 | 
140 | const Container = styled.div`
141 |   background: #262626;
142 |   border: 1px solid #D9D9D9;
143 |   display: flex;
144 |   flex-direction: column;
145 |   height: 100vh;
146 |   margin: auto;
147 | 
148 |   @media (min-width: 425px) {
149 |     max-height: 572px;
150 |     max-width: 425px;
151 |   }
152 | 
153 |   @media (min-width: 768px) {
154 |     margin: 100px auto;
155 |   }
156 | `
157 | 
158 | const InputContainer = styled.section`
159 |   background: white;
160 |   display: flex;
161 |   height: 55px;
162 |   width: 100%;
163 | `
164 | 
165 | const ChatInput = styled.input`
166 |   border: none;
167 |   box-sizing: border-box;
168 |   font-size: 14px;
169 |   outline: none;
170 |   padding: 10px;
171 |   width: 100%;
172 | 
173 |   ::placeholder {
174 |     font-size: 12px;
175 |   }
176 | `
177 | 
178 | const Chatbox = styled.div`
179 |   background: #f2f2f2;
180 |   height: 100%;
181 |   overflow-y: auto;
182 |   padding: 10px;
183 |   width: 100%;
184 |   word-wrap: break-word;
185 | `
186 | 
187 | const Message = styled.div`
188 |   background: ${props => props.self ? 'white' : '#D9D9D9'};
189 |   border-radius: 5px;
190 |   display: inline-block;
191 |   font-size: 14px;
192 |   margin-bottom: 10px
193 |   max-width: 100%;
194 |   padding: 8px;
195 | `
196 | 
197 | const Name = styled.div`
198 |   font-size: 12px;
199 |   margin-top: 10px;
200 | `
201 | 
202 | const SubscriptionSection = styled.section`
203 |   background: #262626;
204 |   border-bottom: 1px solid black;
205 |   color: white;
206 |   padding: 15px;
207 |   text-align: center;
208 | `
209 | 
210 | const NamePrompt = styled.div`
211 |   align-items: center;
212 |   color: white;
213 |   display: flex;
214 |   flex-direction: column;
215 |   font-weight: 700;
216 |   height: 150px;
217 |   justify-content: space-around;
218 |   margin: auto;
219 |   width: 200px;
220 | `
221 | 
222 | const Button = styled.button`
223 |   background: rgb(0,122,255);
224 |   border-radius: 5px;
225 |   border: none;
226 |   color: white;
227 |   margin: 0 10px;
228 |   outline: none;
229 |   padding: 8px;
230 |   transition: all 0.02s ease-in;
231 | 
232 |   :active {
233 |     transform: scale(1.05);
234 |     background: green;
235 |   }
236 | `
237 | 
238 | const RoomHash = styled.div`
239 |   font-size: 12px;
240 |   margin-bottom: 15px;
241 |   word-wrap: break-word;
242 | `
243 | 
244 | const SendButton = styled.div`
245 |   align-items: center;
246 |   background: ${props => props.active ? 'rgb(0,122,255)' : '#D9D9D9'};
247 |   border-radius: 5px;
248 |   color: white;
249 |   display: flex;
250 |   font-size: 12px;
251 |   justify-content: center;
252 |   margin: 5px;
253 |   padding: 5px;
254 | `
255 | 
256 | const RoomPrompt = styled.div`
257 |   align-items: center;
258 |   background: #262626;
259 |   color: white;
260 |   display: flex;
261 |   flex-direction: column;
262 |   font-weight: 700;
263 |   height: 100vh;
264 |   justify-content: space-between;
265 |   margin: auto;
266 |   padding: 200px 15px;
267 |   position: fixed;
268 |   width: 100vw;
269 |   z-index: 2;
270 | 
271 |   @media (min-width: 425px) {
272 |     max-width: 425px;
273 |     max-height: 572px;
274 |   }
275 | `
276 | 
277 | const mapStateToProps = (state) => {
278 |   const { subscription, message, name } = state
279 | 
280 |   return {
281 |     subscription,
282 |     name,
283 |     message
284 |   }
285 | }
286 | 
287 | const mapDispatchToProps = (dispatch) => {
288 |   return {
289 |     setName: (name) => dispatch(setName(name))
290 |   }
291 | }
292 | 
293 | export default connect(mapStateToProps, mapDispatchToProps)(App)
294 | 


--------------------------------------------------------------------------------
/src/actions/index.js:
--------------------------------------------------------------------------------
1 | export const latestMessage = (message) => ({ type: 'MESSAGE', payload: message })
2 | export const setName = (name) => ({ type: 'NAME', payload: name })
3 | export const setSubscription = (symKeyID) => ({ type: 'SUBSCRIPTION', payload: symKeyID })


--------------------------------------------------------------------------------
/src/global.styles.css:
--------------------------------------------------------------------------------
 1 | body {
 2 |   margin: 0;
 3 | }
 4 | 
 5 | html {
 6 |   box-sizing: border-box;
 7 | }
 8 | 
 9 | *, *:before, *:after {
10 |   font-family: 'Open Sans', sans-serif;
11 |   font-weight: 100;
12 |   box-sizing: inherit;
13 | }


--------------------------------------------------------------------------------
/src/index.js:
--------------------------------------------------------------------------------
 1 | import React from 'react'
 2 | import ReactDOM from 'react-dom'
 3 | import { createStore, applyMiddleware } from 'redux'
 4 | import { Provider } from 'react-redux'
 5 | import promiseMiddleware from 'redux-promise';
 6 | import reducers from './reducers'
 7 | import App from './App'
 8 | import { setSubscription, latestMessage, setName } from './actions'
 9 | import { toAscii, toHex } from './utils'
10 | import './global.styles.css'
11 | 
12 | import shh from './whisper'
13 | 
14 | const store = createStore(
15 |   reducers,
16 |   applyMiddleware(promiseMiddleware)
17 | )
18 | 
19 | Promise.all([
20 |   shh.newSymKey(),
21 |   shh.newKeyPair()
22 | ])
23 | .then((identities) => {
24 |   const sessionName = window.sessionStorage.getItem('name')
25 | 
26 |   if (sessionName) {
27 |     store.dispatch(setName(sessionName))
28 |   }
29 | 
30 |   const subscribe = (symKeyID = identities[0], name) => {
31 |     const options = {
32 |       symKeyID,
33 |       topics: ['0xffaadd11']
34 |     }
35 | 
36 |     store.dispatch(setName(name))
37 | 
38 |     shh.getInfo().then(console.info)
39 | 
40 |     shh.newMessageFilter(options)
41 |       .then((id) => shh.getFilterMessages(id))
42 |       .then(messages => console.log)
43 |       .then(() => {
44 |         shh.subscribe('messages', options)
45 |           .on('data', (message) => {
46 |             store.dispatch(latestMessage(toAscii(message.payload)))
47 |           })
48 | 
49 |         store.dispatch(setSubscription(symKeyID))
50 |       })
51 |   }
52 | 
53 |   const postMessage = (name, message, symKeyID = identities[0], publicKey = identities[1]) => {
54 |     if (message === '' || message === null || message === undefined) return
55 | 
56 |     shh.post({
57 |       symKeyID,
58 |       sig: publicKey,
59 |       ttl: 10,
60 |       topic: '0xffaadd11',
61 |       payload: toHex(message + '!encapsulation!' + name),
62 |       powTime: 3,
63 |       powTarget: 0.5
64 |     })
65 |   }
66 | 
67 |   ReactDOM.render(
68 |     <Provider store={ store }>
69 |       <App
70 |         postMessage={ postMessage }
71 |         subscribe={ subscribe }
72 |         symKeyID={ identities[0] }
73 |         publicKey={ identities[1] }
74 |       />
75 |     </Provider>,
76 |     document.getElementById('root')
77 |   )
78 | })


--------------------------------------------------------------------------------
/src/reducers/index.js:
--------------------------------------------------------------------------------
 1 | export default (state = {message: ''}, action) => {
 2 |   switch (action.type) {
 3 |     case 'NAME':
 4 |       window.sessionStorage.setItem('name', action.payload)
 5 |       return { ...state, name: action.payload }
 6 |     case 'SUBSCRIPTION':
 7 |       return { ...state, subscription: action.payload }
 8 |     case 'MESSAGE':
 9 |       return { ...state, message: [ ...state.message, action.payload ] }
10 |     default:
11 |       return state
12 |   }
13 | }


--------------------------------------------------------------------------------
/src/utils/index.js:
--------------------------------------------------------------------------------
 1 | export const toHex = (str) => {
 2 |   let hex = ''
 3 |   for(let i = 0; i < str.length; i++) {
 4 |     hex = hex + '' + str.charCodeAt(i).toString(16)
 5 |   }
 6 | 
 7 |   return '0x' + hex
 8 | }
 9 | 
10 | export const toAscii = (hexx) => {
11 |   const hex = hexx.toString()
12 |   let str = ''
13 | 
14 |   for (let i = 0; (i < hex.length && hex.substr(i, 2) !== '00'); i += 2) {
15 |     str = str + String.fromCharCode(parseInt(hex.substr(i, 2), 16))
16 |   }
17 | 
18 |   return str
19 | }
20 | 


--------------------------------------------------------------------------------
/src/whisper.js:
--------------------------------------------------------------------------------
1 | import Web3 from 'web3'
2 | const web3 = new Web3(`ws://${window.location.hostname}:8546`)
3 | 
4 | export default web3.shh


--------------------------------------------------------------------------------