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simple rtc demo

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CoolElectronics 2023-08-10 12:19:13 -04:00
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node_modules
dist.js
dist.js.map

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[submodule "corium"]
path = corium
url = https://github.com/CoolElectronics/corium

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import { openWindow, deleteWindow } from "corium";
import { h, render, Component, Fragment } from 'preact';
import { RTCConnection } from "./rtc";
export default class App extends Component {
rtc = new RTCConnection({
onmessage: console.log,
onopen: () => {
this.rtc.dataChannel.send("test message");
}
});
state = {
};
onInput = e => {
const { value } = e.target;
this.setState(prev => ({ ...prev, answer: value }));
}
render(props, state) {
return <>
<div>
</div>
<button onClick={async () => {
console.log("whra");
let offer = await this.rtc.createOffer();
console.log("hra");
this.setState(prev => ({ ...prev, offer: JSON.stringify(offer) }));
}}>create offer</button>
<p>
offer: <code>{state.offer}</code>
</p>
paste answer: <input type="text" value={state.answer} onInput={this.onInput} />
<button onClick={async () => {
let { answer, candidates } = JSON.parse(state.answer);
await this.rtc.answer(answer, candidates);
alert("connected");
}}>
connect
</button>
</>;
}
}

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<!DOCTYPE html>
<html lang="en">
<head>
<title></title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="icon" href="/icon.png">
<link href="style.css" rel="stylesheet">
<script defer src="dist.js"></script>
</head>
<body>
<div id="app">
</div>
</body>
</html>

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import "preact/debug";
import { h, render } from 'preact'
import 'preact/devtools';
import App from "./App";
const container = document.getElementById("app") as HTMLElement;
let app = <App />;
console.log(app);
render(<App />, container);

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const rtcConf = {
iceServers: [
{
urls: "stun:stun.l.google.com:19302"
}
]
}
type Offer = { offer: any, localCandidates: any };
interface RTCOptions {
onconnectionstatechange?,
onsignalingstatechange?,
oniceconnectionstatechange?,
onicegatheringstatechange?,
onopen?,
onclose?,
onmessage?
}
export class RTCConnection {
peer: RTCPeerConnection;
dataChannel: RTCDataChannel;
constructor(options: RTCOptions) {
let {
onconnectionstatechange,
onsignalingstatechange,
oniceconnectionstatechange,
onicegatheringstatechange,
onopen,
onclose,
onmessage
} = options;
this.peer = new RTCPeerConnection(rtcConf);
this.peer.onconnectionstatechange = onconnectionstatechange;
// (event) => {
// console.log('Connection state:', this.peer.connectionState);
// };
this.peer.onsignalingstatechange = onsignalingstatechange;
// (event) => {
// console.log('Signaling state:', this.peer.signalingState);
// };
this.peer.oniceconnectionstatechange = oniceconnectionstatechange;
// (event) => {
// console.log('ICE connection state:', this.peer.iceConnectionState);
// if (this.peer.iceConnectionState == "disconnected" || this.peer.iceConnectionState == "failed") {
// console.log("disconnected");
// // ondisconnect();
// }
// };
this.peer.onicegatheringstatechange = onicegatheringstatechange;
// (event) => {
// console.log('ICE gathering state:', this.peer.iceGatheringState);
// };
this.dataChannel = this.peer.createDataChannel('host-server');
this.dataChannel.onopen = onopen;
// () => {
// console.log("READY!!!");
//
// dataChannel.send("test data");
// };
this.dataChannel.onclose = onclose;
this.dataChannel.onmessage = onmessage;
}
async createOffer(): Promise<Promise<Offer>> {
const localCandidates: RTCIceCandidate[] = [];
let readyPromise: Promise<Offer> = new Promise((resolve, reject) => {
this.peer.onicecandidate = async (event) => {
if (event.candidate) {
localCandidates.push(event.candidate);
return;
}
resolve({ offer, localCandidates });
};
});
const offer = await this.peer.createOffer();
await this.peer.setLocalDescription(offer);
return readyPromise;
}
async answer(answer: any, candidates: any) {
await this.peer.setRemoteDescription(answer);
for (let candidate of candidates) {
await this.peer.addIceCandidate(candidate);
}
}
}

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{
"name": "adrift",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"build": "esbuild ./client/main.jsx --bundle --outfile=client/dist.js",
"watch": "esbuild ./client/main.jsx --bundle --outfile=client/dist.js --watch"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"corium": "file:corium",
"dotenv": "^16.3.1",
"esbuild": "0.19.0",
"preact": "^10.16.0",
"wrtc": "^0.4.7"
}
}

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import dotenv from "dotenv";
import * as wrtc from "wrtc";
const configuration = {
iceServers: [
{
urls: "stun:stun.l.google.com:19302",
},
],
};
dotenv.config();
async function connect(offer, candidates) {
const localCandidates: any[] = [];
let dataChannel;
const peer = new wrtc.RTCPeerConnection(configuration);
peer.ondatachannel = (event) => {
dataChannel = event.channel;
dataChannel.onopen = () => {
console.log("opened");
};
dataChannel.onclose = (event) => {
console.log("closed");
};
dataChannel.onmessage = (event) => {
console.log("messaged");
console.log(event);
};
};
peer.onconnectionstatechange = () => {
console.log('Connection state:', peer.connectionState);
};
peer.onsignalingstatechange = () => {
console.log('Signaling state:', peer.signalingState);
};
peer.oniceconnectionstatechange = () => {
console.log('ICE connection state:', peer.iceConnectionState);
};
peer.onicegatheringstatechange = () => {
console.log('ICE gathering state:', peer.iceGatheringState);
};
peer.onicecandidate = (event: any) => {
if (event.candidate) {
localCandidates.push(event.candidate);
return;
}
let payload = {
answer: peer.localDescription,
candidates: localCandidates,
};
console.log(JSON.stringify(payload));
};
await peer.setRemoteDescription(offer);
let answer = await peer.createAnswer();
await peer.setLocalDescription(answer);
for (let candidate of candidates) {
await peer.addIceCandidate(candidate);
}
}
const { offer, localCandidates } =
{ "offer": { "type": "offer", "sdp": "v=0\r\no=- 4586812759771523024 2 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\na=group:BUNDLE 0\r\na=extmap-allow-mixed\r\na=msid-semantic: WMS\r\nm=application 9 UDP/DTLS/SCTP webrtc-datachannel\r\nc=IN IP4 0.0.0.0\r\na=ice-ufrag:c7ST\r\na=ice-pwd:gYK+MUVTy//4PeDk5hF7MPvG\r\na=ice-options:trickle\r\na=fingerprint:sha-256 74:57:8A:5F:E1:83:09:7F:56:5E:99:03:A7:2A:5D:0C:42:AC:8D:EB:00:33:43:E7:2B:3C:60:64:CD:B1:65:01\r\na=setup:actpass\r\na=mid:0\r\na=sctp-port:5000\r\na=max-message-size:262144\r\n" }, "localCandidates": [{ "candidate": "candidate:3436378122 1 udp 2113937151 152aa36b-1063-48ea-9d3d-0785d6d70eca.local 45909 typ host generation 0 ufrag c7ST network-cost 999", "sdpMid": "0", "sdpMLineIndex": 0, "usernameFragment": "c7ST" }, { "candidate": "candidate:3063087197 1 udp 1677729535 172.100.111.196 44745 typ srflx raddr 0.0.0.0 rport 0 generation 0 ufrag c7ST network-cost 999", "sdpMid": "0", "sdpMLineIndex": 0, "usernameFragment": "c7ST" }] }
connect(offer, localCandidates);

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{
"compilerOptions": {
/* Visit https://aka.ms/tsconfig.json to read more about this file */
/* Projects */
// "incremental": true, /* Enable incremental compilation */
// "composite": true, /* Enable constraints that allow a TypeScript project to be used with project references. */
// "tsBuildInfoFile": "./", /* Specify the folder for .tsbuildinfo incremental compilation files. */
// "disableSourceOfProjectReferenceRedirect": true, /* Disable preferring source files instead of declaration files when referencing composite projects */
// "disableSolutionSearching": true, /* Opt a project out of multi-project reference checking when editing. */
// "disableReferencedProjectLoad": true, /* Reduce the number of projects loaded automatically by TypeScript. */
/* Language and Environment */
"target": "es2016", /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
// "lib": [], /* Specify a set of bundled library declaration files that describe the target runtime environment. */
"jsx": "preserve", /* Specify what JSX code is generated. */
// "experimentalDecorators": true, /* Enable experimental support for TC39 stage 2 draft decorators. */
// "emitDecoratorMetadata": true, /* Emit design-type metadata for decorated declarations in source files. */
// "jsxFactory": "", /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h' */
// "jsxFragmentFactory": "", /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
// "jsxImportSource": "", /* Specify module specifier used to import the JSX factory functions when using `jsx: react-jsx*`.` */
// "reactNamespace": "", /* Specify the object invoked for `createElement`. This only applies when targeting `react` JSX emit. */
// "noLib": true, /* Disable including any library files, including the default lib.d.ts. */
// "useDefineForClassFields": true, /* Emit ECMAScript-standard-compliant class fields. */
/* Modules */
"module": "CommonJS", /* Specify what module code is generated. */
// "rootDir": "./", /* Specify the root folder within your source files. */
"moduleResolution": "node", /* Specify how TypeScript looks up a file from a given module specifier. */
// "baseUrl": "./", /* Specify the base directory to resolve non-relative module names. */
"paths": ["./","./src/*"], /* Specify a set of entries that re-map imports to additional lookup locations. */
// "rootDirs": [], /* Allow multiple folders to be treated as one when resolving modules. */
// "typeRoots": [], /* Specify multiple folders that act like `./node_modules/@types`. */
// "types": [], /* Specify type package names to be included without being referenced in a source file. */
// "allowUmdGlobalAccess": true, /* Allow accessing UMD globals from modules. */
// "resolveJsonModule": true, /* Enable importing .json files */
// "noResolve": true, /* Disallow `import`s, `require`s or `<reference>`s from expanding the number of files TypeScript should add to a project. */
/* JavaScript Support */
// "allowJs": true, /* Allow JavaScript files to be a part of your program. Use the `checkJS` option to get errors from these files. */
// "checkJs": true, /* Enable error reporting in type-checked JavaScript files. */
// "maxNodeModuleJsDepth": 1, /* Specify the maximum folder depth used for checking JavaScript files from `node_modules`. Only applicable with `allowJs`. */
/* Emit */
// "declaration": true, /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
// "declarationMap": true, /* Create sourcemaps for d.ts files. */
// "emitDeclarationOnly": true, /* Only output d.ts files and not JavaScript files. */
// "sourceMap": true, /* Create source map files for emitted JavaScript files. */
// "outFile": "./", /* Specify a file that bundles all outputs into one JavaScript file. If `declaration` is true, also designates a file that bundles all .d.ts output. */
// "outDir": "./", /* Specify an output folder for all emitted files. */
// "removeComments": true, /* Disable emitting comments. */
// "noEmit": true, /* Disable emitting files from a compilation. */
// "importHelpers": true, /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
// "importsNotUsedAsValues": "remove", /* Specify emit/checking behavior for imports that are only used for types */
// "downlevelIteration": true, /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
// "sourceRoot": "", /* Specify the root path for debuggers to find the reference source code. */
// "mapRoot": "", /* Specify the location where debugger should locate map files instead of generated locations. */
// "inlineSourceMap": true, /* Include sourcemap files inside the emitted JavaScript. */
// "inlineSources": true, /* Include source code in the sourcemaps inside the emitted JavaScript. */
// "emitBOM": true, /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
// "newLine": "crlf", /* Set the newline character for emitting files. */
// "stripInternal": true, /* Disable emitting declarations that have `@internal` in their JSDoc comments. */
// "noEmitHelpers": true, /* Disable generating custom helper functions like `__extends` in compiled output. */
// "noEmitOnError": true, /* Disable emitting files if any type checking errors are reported. */
// "preserveConstEnums": true, /* Disable erasing `const enum` declarations in generated code. */
// "declarationDir": "./", /* Specify the output directory for generated declaration files. */
// "preserveValueImports": true, /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */
/* Interop Constraints */
// "isolatedModules": true, /* Ensure that each file can be safely transpiled without relying on other imports. */
// "allowSyntheticDefaultImports": true, /* Allow 'import x from y' when a module doesn't have a default export. */
"esModuleInterop": true, /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables `allowSyntheticDefaultImports` for type compatibility. */
// "preserveSymlinks": true, /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
"forceConsistentCasingInFileNames": true, /* Ensure that casing is correct in imports. */
/* Type Checking */
"strict": true, /* Enable all strict type-checking options. */
"noImplicitAny": false, /* Enable error reporting for expressions and declarations with an implied `any` type.. */
// "strictNullChecks": true, /* When type checking, take into account `null` and `undefined`. */
// "strictFunctionTypes": true, /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
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// "noImplicitThis": true, /* Enable error reporting when `this` is given the type `any`. */
// "useUnknownInCatchVariables": true, /* Type catch clause variables as 'unknown' instead of 'any'. */
// "alwaysStrict": true, /* Ensure 'use strict' is always emitted. */
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/* Completeness */
// "skipDefaultLibCheck": true, /* Skip type checking .d.ts files that are included with TypeScript. */
"skipLibCheck": true /* Skip type checking all .d.ts files. */
}
}