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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| import { WireProtocol } from "./protocol/mod.ts"; | ||
| import { ConnectOptions } from "./types.ts"; | ||
| import { AuthContext, ScramAuthPlugin, X509AuthPlugin } from "./auth/mod.ts"; | ||
| import { MongoError } from "./error.ts"; | ||
| import { assert } from "../deps.ts"; | ||
| import { Server } from "./types.ts"; | ||
|
|
||
| export interface DenoConnectOptions { | ||
| hostname: string; | ||
| port: number; | ||
| certFile?: string; | ||
| } | ||
|
|
||
| export class Cluster { | ||
| #options: ConnectOptions; | ||
| #connections: Deno.Conn[]; | ||
| #protocols: WireProtocol[]; | ||
| #masterIndex: number; | ||
|
|
||
| constructor(options: ConnectOptions) { | ||
| this.#options = options; | ||
| this.#connections = []; | ||
| this.#protocols = []; | ||
| this.#masterIndex = -1; | ||
| } | ||
|
|
||
| async connect() { | ||
| const options = this.#options; | ||
| this.#connections = await Promise.all( | ||
| options.servers.map((server) => this.connectToServer(server, options)), | ||
| ); | ||
| } | ||
|
|
||
| async connectToServer(server: Server, options: ConnectOptions) { | ||
| const denoConnectOps: DenoConnectOptions = { | ||
| hostname: server.host, | ||
| port: server.port, | ||
| }; | ||
| if (options.tls) { | ||
| if (options.certFile) { | ||
| denoConnectOps.certFile = options.certFile; | ||
| } | ||
| if (options.keyFile) { | ||
| if (options.keyFilePassword) { | ||
| throw new MongoError( | ||
| `Tls keyFilePassword not implemented in Deno driver`, | ||
| ); | ||
| //TODO, need something like const key = decrypt(options.keyFile) ... | ||
| } | ||
| throw new MongoError(`Tls keyFile not implemented in Deno driver`); | ||
| //TODO, need Deno.connectTls with something like key or keyFile option. | ||
| } | ||
| return await Deno.connectTls(denoConnectOps); | ||
| } else { | ||
| return await Deno.connect(denoConnectOps); | ||
| } | ||
| } | ||
|
|
||
| async authenticate() { | ||
| const options = this.#options; | ||
| this.#protocols = await Promise.all( | ||
| this.#connections.map((conn) => this.authenticateToServer(conn, options)), | ||
| ); | ||
| } | ||
|
|
||
| async authenticateToServer(conn: Deno.Conn, options: ConnectOptions) { | ||
| const protocol = new WireProtocol(conn); | ||
| if (options.credential) { | ||
| const authContext = new AuthContext( | ||
| protocol, | ||
| options.credential, | ||
| options, | ||
| ); | ||
| const mechanism = options.credential!.mechanism; | ||
| let authPlugin; | ||
| if (mechanism === "SCRAM-SHA-256") { | ||
| authPlugin = new ScramAuthPlugin("sha256"); //TODO AJUST sha256 | ||
| } else if (mechanism === "SCRAM-SHA-1") { | ||
| authPlugin = new ScramAuthPlugin("sha1"); | ||
| } else if (mechanism === "MONGODB-X509") { | ||
| authPlugin = new X509AuthPlugin(); | ||
| } else { | ||
| throw new MongoError( | ||
| `Auth mechanism not implemented in Deno driver: ${mechanism}`, | ||
| ); | ||
| } | ||
| const request = authPlugin.prepare(authContext); | ||
| authContext.response = await protocol.commandSingle( | ||
| "admin", // TODO: Should get the auth db from connectionOptions? | ||
| request, | ||
| ); | ||
| await authPlugin.auth(authContext); | ||
| } else { | ||
| await protocol.connect(); | ||
| } | ||
| return protocol; | ||
| } | ||
|
|
||
| async updateMaster() { | ||
| const results = await Promise.all(this.#protocols.map((protocol) => { | ||
| return protocol.commandSingle( | ||
| "admin", | ||
| { hello: 1 }, | ||
| ); | ||
| })); | ||
| const masterIndex = results.findIndex((result) => result.isWritablePrimary); | ||
| if (masterIndex === -1) throw new Error(`Could not find a master node`); | ||
| this.#masterIndex = masterIndex; | ||
| } | ||
|
|
||
| private getMaster() { | ||
| return { | ||
| protocol: this.#protocols[this.#masterIndex], | ||
| conn: this.#connections[this.#masterIndex], | ||
| }; | ||
| } | ||
|
|
||
| get protocol() { | ||
| const protocol = this.getMaster().protocol; | ||
| assert(protocol); | ||
| return protocol; | ||
| } | ||
|
|
||
| close() { | ||
| this.#connections.forEach((connection) => { | ||
| try { | ||
| Deno.close(connection.rid); | ||
| } catch (error) { | ||
| console.error(`Error closing connection: ${error}`); | ||
| } | ||
| }); | ||
| } | ||
| } |
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