From 428e8b31607c289e423697896efc932be443004c Mon Sep 17 00:00:00 2001
From: Derrick Hammer <derrick@derrickhammer.com>
Date: Mon, 27 Jun 2022 18:22:53 -0400
Subject: [PATCH] *add dist

---
 dist/index.d.ts     |  15 ++++++
 dist/index.d.ts.map |   1 +
 dist/index.js       | 114 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 130 insertions(+)
 create mode 100644 dist/index.d.ts
 create mode 100644 dist/index.d.ts.map
 create mode 100644 dist/index.js

diff --git a/dist/index.d.ts b/dist/index.d.ts
new file mode 100644
index 0000000..ccb1d5f
--- /dev/null
+++ b/dist/index.d.ts
@@ -0,0 +1,15 @@
+export default class DHT {
+    private _dht;
+    private _wsPool;
+    constructor();
+    static get IS_WEB(): boolean;
+    private _relays;
+    get relays(): string[];
+    addRelay(pubkey: string): Promise<boolean>;
+    removeRelay(pubkey: string): boolean;
+    clearRelays(): void;
+    private isServerAvailable;
+    private setupProxy;
+}
+export declare function hashDataKey(dataKey: string): Uint8Array;
+//# sourceMappingURL=index.d.ts.map
\ No newline at end of file
diff --git a/dist/index.d.ts.map b/dist/index.d.ts.map
new file mode 100644
index 0000000..0515006
--- /dev/null
+++ b/dist/index.d.ts.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAiBA,MAAM,CAAC,OAAO,OAAO,GAAG;IACtB,OAAO,CAAC,IAAI,CAAU;IACtB,OAAO,CAAC,OAAO,CAAU;;IAQzB,MAAM,KAAK,MAAM,YAEhB;IAED,OAAO,CAAC,OAAO,CAAwC;IAEvD,IAAI,MAAM,IAAI,MAAM,EAAE,CAErB;IAEY,QAAQ,CAAC,MAAM,EAAE,MAAM,GAAG,OAAO,CAAC,OAAO,CAAC;IA+BhD,WAAW,CAAC,MAAM,EAAE,MAAM,GAAG,OAAO;IAWpC,WAAW,IAAI,IAAI;YAKZ,iBAAiB;IAa/B,OAAO,CAAC,UAAU;CAsBnB;AAED,wBAAgB,WAAW,CAAC,OAAO,EAAE,MAAM,GAAG,UAAU,CAEvD"}
\ No newline at end of file
diff --git a/dist/index.js b/dist/index.js
new file mode 100644
index 0000000..a1849fd
--- /dev/null
+++ b/dist/index.js
@@ -0,0 +1,114 @@
+// @ts-ignore
+import { DhtNode } from "@hyperswarm/dht-relay";
+// @ts-ignore
+import Stream from "@hyperswarm/dht-relay/ws";
+// @ts-ignore
+import createPool from "websocket-pool";
+// @ts-ignore
+import createRoundRobin from "@derhuerst/round-robin-scheduler";
+import { Buffer } from "buffer";
+import { blake2b } from "libskynet";
+import { registryRead } from "libkernel";
+const REGISTRY_DHT_KEY = "lumeweb-dht-relay";
+const IP_REGEX = /^(?:(?:2[0-4]\d|25[0-5]|1\d{2}|[1-9]?\d)\.){3}(?:2[0-4]\d|25[0-5]|1\d{2}|[1-9]?\d)$/;
+export default class DHT {
+    constructor() {
+        this._relays = {};
+        this._wsPool = createPool(WebSocket, createRoundRobin);
+        this._dht = new DhtNode(new Stream(true, this._wsPool));
+        return this.setupProxy();
+    }
+    static get IS_WEB() {
+        return true;
+    }
+    get relays() {
+        return Object.keys(this._relays);
+    }
+    async addRelay(pubkey) {
+        let entry = await registryRead(stringToUint8ArrayUtf8(pubkey), hashDataKey(REGISTRY_DHT_KEY));
+        if (entry[1] || !entry[0]?.exists) {
+            return false;
+        }
+        const host = Buffer.from(entry[0].entryData).toString("utf8");
+        const [ip, port] = host.split(".");
+        if (!IP_REGEX.test(ip)) {
+            return false;
+        }
+        if (isNaN(parseInt(port))) {
+            return false;
+        }
+        const connection = `ws://${ip}:${port}/`;
+        if (!(await this.isServerAvailable(connection))) {
+            return false;
+        }
+        this._relays[pubkey] = this._wsPool.add(connection);
+        return true;
+    }
+    removeRelay(pubkey) {
+        if (!(pubkey in this._relays)) {
+            return false;
+        }
+        this._relays[pubkey]();
+        delete this._relays[pubkey];
+        return true;
+    }
+    clearRelays() {
+        this._wsPool.close();
+        this._relays = {};
+    }
+    async isServerAvailable(connection) {
+        return new Promise((resolve) => {
+            const ws = new WebSocket(connection);
+            ws.addEventListener("open", () => {
+                ws.close();
+                resolve(true);
+            });
+            ws.addEventListener("error", () => {
+                resolve(false);
+            });
+        });
+    }
+    setupProxy() {
+        return new Proxy(this, {
+            get(target, name) {
+                if (!target.hasOwnProperty(name)) {
+                    if (!target._dht.hasOwnProperty(name)) {
+                        throw new Error(`Cannot access the ${name} property`);
+                    }
+                    return target._dht[target];
+                }
+                else {
+                    // @ts-ignore
+                    return target[name];
+                }
+            },
+            has(target, name) {
+                if (!target.hasOwnProperty(name)) {
+                    return target._dht.hasOwnProperty(name);
+                }
+                return true;
+            },
+        });
+    }
+}
+export function hashDataKey(dataKey) {
+    return blake2b(encodeUtf8String(dataKey));
+}
+function encodeUtf8String(str) {
+    const byteArray = stringToUint8ArrayUtf8(str);
+    const encoded = new Uint8Array(8 + byteArray.length);
+    encoded.set(encodeNumber(byteArray.length));
+    encoded.set(byteArray, 8);
+    return encoded;
+}
+function stringToUint8ArrayUtf8(str) {
+    return Uint8Array.from(Buffer.from(str, "utf-8"));
+}
+function encodeNumber(num) {
+    const encoded = new Uint8Array(8);
+    for (let index = 0; index < encoded.length; index++) {
+        encoded[index] = num & 0xff;
+        num = num >> 8;
+    }
+    return encoded;
+}