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Added ability to authenticate with RiotClientUx #51

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Aug 3, 2021
Merged

Added ability to authenticate with RiotClientUx #51

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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,7 @@ LeagueClientUx process. If you wish to await until a client is found, you can us

| Option | Default Value | Description |
|--------|---------------|-------------|
| name | `LeagueClientUx` | League Client name, set to RiotClientUx if you would like to authenticate with the Riot Client
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Thank you so much for updating the documentation!

| awaitConnection | `false` | Await until a LeagueClientUx process is found |
| pollInterval | `2500` | Duration in milliseconds between each poll. No-op if awaitConnection is false. |
| certificate | `undefined` | A plain-text self-signed certificate to authenticate to the LCU API with. This option should only be used if you're self-signing with a certificate which is not the one Riot Games provides on their developer page. League Connect will default to using Riot's own self-signed certificate for authentication. If you're of what this option does, you should probably not use it. |
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13 changes: 11 additions & 2 deletions src/authentication.ts
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Expand Up @@ -5,6 +5,7 @@ import util from 'util'

const exec = util.promisify(cp.exec)

const DEFAULT_NAME = 'LeagueClientUx'
const DEFAULT_POLL_INTERVAL = 2500

export interface Credentials {
Expand All @@ -28,6 +29,13 @@ export interface Credentials {
}

export interface AuthenticationOptions {
/**
* League Client process name. Set to RiotClientUx if you would like to
* authenticate with the Riot Client
*
* Defaults: LeagueClientUx
*/
name?: string
/**
* Does not return before the League Client has been detected. This means the
* function stays unresolved until a League has been found.
Expand Down Expand Up @@ -91,14 +99,15 @@ export async function authenticate(options?: AuthenticationOptions): Promise<Cre
const RIOT_GAMES_CERT = await fs.promises.readFile(path.join(__dirname, '..', 'riotgames.pem'), 'utf-8')

async function tryAuthenticate() {
const name = options?.name ?? DEFAULT_NAME
const portRegex = /--app-port=([0-9]+)/
const passwordRegex = /--remoting-auth-token=([\w-_]+)/
const pidRegex = /--app-pid=([0-9]+)/

const command =
process.platform === 'win32'
? "WMIC PROCESS WHERE name='LeagueClientUx.exe' GET CommandLine"
: "ps x -o args | grep 'LeagueClientUx'"
? `WMIC PROCESS WHERE name='${name}.exe' GET CommandLine`
: `ps x -o args | grep '${name}'`

try {
const { stdout } = await exec(command)
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