feat: got p2p version / verack

Author: coolaj86

public/dashjoin.js

@@ -2,10 +2,18 @@ var DashJoin = ('object' === typeof module && exports) || {};
 (function (window, DashJoin) {
 	'use strict';
 
+	// let DashTx = window.DashTx || require('dashtx');
+
 	const DENOM_LOWEST = 100001;
 	const PREDENOM_MIN = DENOM_LOWEST + 193;
 	const COLLATERAL = 10000; // DENOM_LOWEST / 10
+	const PAYLOAD_SIZE_MAX = 4 * 1024 * 1024;
+
+	// https://github.com/dashpay/dash/blob/v19.x/src/coinjoin/coinjoin.h#L39
+	// const COINJOIN_ENTRY_MAX_SIZE = 9; // real
+	// const COINJOIN_ENTRY_MAX_SIZE = 2; // just for testing right now
 
+	DashJoin.PAYLOAD_SIZE_MAX = PAYLOAD_SIZE_MAX;
 	DashJoin.DENOM_LOWEST = DENOM_LOWEST;
 	DashJoin.COLLATERAL = COLLATERAL;
 	DashJoin.PREDENOM_MIN = PREDENOM_MIN;
@@ -31,6 +39,91 @@ var DashJoin = ('object' === typeof module && exports) || {};
 		return 0;
 	};
 
+	DashJoin.utils = {};
+
+	DashJoin.utils.hexToBytes = function (hex) {
+		let bufLen = hex.length / 2;
+		let u8 = new Uint8Array(bufLen);
+
+		let i = 0;
+		let index = 0;
+		let lastIndex = hex.length - 2;
+		for (;;) {
+			if (i > lastIndex) {
+				break;
+			}
+
+			let h = hex.slice(i, i + 2);
+			let b = parseInt(h, 16);
+			u8[index] = b;
+
+			i += 2;
+			index += 1;
+		}
+
+		return u8;
+	};
+
+	DashJoin.utils.bytesToHex = function (u8) {
+		/** @type {Array<String>} */
+		let hex = [];
+
+		u8.forEach(function (b) {
+			let h = b.toString(16).padStart(2, '0');
+			hex.push(h);
+		});
+
+		return hex.join('');
+	};
+
+	DashJoin.utils._evonodeMapToList = function (evonodesMap) {
+		console.log('[debug] get evonode list...');
+		let evonodes = [];
+		{
+			//let resp = await rpc.masternodelist();
+			let evonodeProTxIds = Object.keys(evonodesMap);
+			for (let id of evonodeProTxIds) {
+				let evonode = evonodesMap[id];
+				if (evonode.status !== 'ENABLED') {
+					continue;
+				}
+
+				let hostParts = evonode.address.split(':');
+				let evodata = {
+					id: evonode.id,
+					host: evonode.address,
+					hostname: hostParts[0],
+					port: hostParts[1],
+					type: evonode.type,
+				};
+				evonodes.push(evodata);
+			}
+			if (!evonodes.length) {
+				throw new Error('Sanity Fail: no evonodes online');
+			}
+		}
+
+		// void shuffle(evonodes);
+		evonodes.sort(DashJoin.utils.sortMnListById);
+		return evonodes;
+	};
+
+	/**
+	 * @param {Object} a
+	 * @param {String} a.id
+	 * @param {Object} b
+	 * @param {String} b.id
+	 */
+	DashJoin.utils.sortMnListById = function (a, b) {
+		if (a.id > b.id) {
+			return 1;
+		}
+		if (a.id < b.id) {
+			return -1;
+		}
+		return 0;
+	};
+
 	//@ts-ignore
 	window.DashJoin = DashJoin;
 })(globalThis.window || {}, DashJoin);