diff --git a/blockchain/Dockerfile b/blockchain/Dockerfile new file mode 100644 index 0000000..04ac5ae --- /dev/null +++ b/blockchain/Dockerfile @@ -0,0 +1,12 @@ +FROM ethereum/client-go:v1.13.15 + +COPY genesis.json /app/genesis.json +COPY init-geth.sh /app/init-geth.sh + +RUN chmod +x /app/init-geth.sh + +EXPOSE 8545 8546 + +WORKDIR /app + +ENTRYPOINT ["/app/init-geth.sh"] diff --git a/blockchain/contracts/AfterCoin.sol b/blockchain/contracts/AfterCoin.sol new file mode 100644 index 0000000..0f5ac1a --- /dev/null +++ b/blockchain/contracts/AfterCoin.sol @@ -0,0 +1,183 @@ +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.20; + +/** + * @title AfterCoin (AFC) + * @notice ERC-20 token for the Afterlife Project game preservation platform. + * 1 AFC = 1 diamond. Zero decimals — integer-only balances. + * @dev Self-contained implementation (no OpenZeppelin). Owner-gated mint, + * burn-from, and bridge-transfer helpers for the off-chain bridge service. + */ +contract AfterCoin { + + // ──────────────────────────── ERC-20 metadata ──────────────────────────── + + string private constant _name = "AfterCoin"; + string private constant _symbol = "AFC"; + uint8 private constant _decimals = 0; // 1 token = 1 diamond + + // ──────────────────────────── State ────────────────────────────────────── + + uint256 private _totalSupply; + + mapping(address => uint256) private _balances; + mapping(address => mapping(address => uint256)) private _allowances; + + address public owner; + + // ──────────────────────────── Events (ERC-20) ──────────────────────────── + + event Transfer(address indexed from, address indexed to, uint256 value); + event Approval(address indexed owner, address indexed spender, uint256 value); + + // ──────────────────────────── Errors ───────────────────────────────────── + + error NotOwner(); + error ZeroAddress(); + error InsufficientBalance(address account, uint256 required, uint256 available); + error InsufficientAllowance(address spender, uint256 required, uint256 available); + + // ──────────────────────────── Modifier ─────────────────────────────────── + + modifier onlyOwner() { + if (msg.sender != owner) revert NotOwner(); + _; + } + + // ──────────────────────────── Constructor ──────────────────────────────── + + constructor() { + owner = msg.sender; + // Initial supply is 0 — tokens are minted on demand by the bridge. + } + + // ──────────────────────────── ERC-20 view functions ────────────────────── + + function name() external pure returns (string memory) { + return _name; + } + + function symbol() external pure returns (string memory) { + return _symbol; + } + + function decimals() external pure returns (uint8) { + return _decimals; + } + + function totalSupply() external view returns (uint256) { + return _totalSupply; + } + + function balanceOf(address account) external view returns (uint256) { + return _balances[account]; + } + + function allowance(address tokenOwner, address spender) external view returns (uint256) { + return _allowances[tokenOwner][spender]; + } + + // ──────────────────────────── ERC-20 mutative functions ────────────────── + + function transfer(address to, uint256 amount) external returns (bool) { + _transfer(msg.sender, to, amount); + return true; + } + + function approve(address spender, uint256 amount) external returns (bool) { + _approve(msg.sender, spender, amount); + return true; + } + + function transferFrom( + address from, + address to, + uint256 amount + ) external returns (bool) { + uint256 currentAllowance = _allowances[from][msg.sender]; + if (currentAllowance != type(uint256).max) { + if (currentAllowance < amount) { + revert InsufficientAllowance(msg.sender, amount, currentAllowance); + } + unchecked { + _approve(from, msg.sender, currentAllowance - amount); + } + } + _transfer(from, to, amount); + return true; + } + + // ──────────────────────────── Owner-only functions ─────────────────────── + + /** + * @notice Mint new tokens to `to`. Only callable by the contract owner. + * @param to Recipient address. + * @param amount Number of tokens to create. + */ + function mint(address to, uint256 amount) external onlyOwner { + if (to == address(0)) revert ZeroAddress(); + _totalSupply += amount; + _balances[to] += amount; + emit Transfer(address(0), to, amount); + } + + /** + * @notice Burn tokens from `from`. Only callable by the contract owner. + * Does NOT require an allowance — the owner is the bridge operator. + * @param from Address whose tokens are burned. + * @param amount Number of tokens to destroy. + */ + function burnFrom(address from, uint256 amount) external onlyOwner { + if (from == address(0)) revert ZeroAddress(); + uint256 bal = _balances[from]; + if (bal < amount) { + revert InsufficientBalance(from, amount, bal); + } + unchecked { + _balances[from] = bal - amount; + } + _totalSupply -= amount; + emit Transfer(from, address(0), amount); + } + + /** + * @notice Transfer tokens between two addresses on behalf of the bridge. + * Only callable by the contract owner. + * @param from Source address. + * @param to Destination address. + * @param amount Number of tokens to move. + */ + function bridgeTransfer( + address from, + address to, + uint256 amount + ) external onlyOwner { + _transfer(from, to, amount); + } + + // ──────────────────────────── Internal helpers ─────────────────────────── + + function _transfer(address from, address to, uint256 amount) internal { + if (from == address(0)) revert ZeroAddress(); + if (to == address(0)) revert ZeroAddress(); + + uint256 fromBal = _balances[from]; + if (fromBal < amount) { + revert InsufficientBalance(from, amount, fromBal); + } + unchecked { + _balances[from] = fromBal - amount; + } + _balances[to] += amount; + + emit Transfer(from, to, amount); + } + + function _approve(address tokenOwner, address spender, uint256 amount) internal { + if (tokenOwner == address(0)) revert ZeroAddress(); + if (spender == address(0)) revert ZeroAddress(); + + _allowances[tokenOwner][spender] = amount; + emit Approval(tokenOwner, spender, amount); + } +} diff --git a/blockchain/genesis.json b/blockchain/genesis.json new file mode 100644 index 0000000..18de7ce --- /dev/null +++ b/blockchain/genesis.json @@ -0,0 +1,27 @@ +{ + "config": { + "chainId": 8888, + "homesteadBlock": 0, + "eip150Block": 0, + "eip155Block": 0, + "eip158Block": 0, + "byzantiumBlock": 0, + "constantinopleBlock": 0, + "petersburgBlock": 0, + "istanbulBlock": 0, + "berlinBlock": 0, + "londonBlock": 0, + "clique": { + "period": 5, + "epoch": 0 + } + }, + "difficulty": "0x1", + "gasLimit": "0x1C9C380", + "extradata": "0x0000000000000000000000000000000000000000000000000000000000000000751c6F0Efd9B97A004969cfF9ACfA32230bdC4c40000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", + "alloc": { + "0x751c6F0Efd9B97A004969cfF9ACfA32230bdC4c4": { + "balance": "0xffffffffffffffff" + } + } +} diff --git a/blockchain/init-geth.sh b/blockchain/init-geth.sh new file mode 100755 index 0000000..ed3542d --- /dev/null +++ b/blockchain/init-geth.sh @@ -0,0 +1,50 @@ +#!/bin/sh +set -e + +GENESIS_FILE="/app/genesis.json" +DATADIR="/data" + +# Initialize geth datadir if not already done +if [ ! -d "$DATADIR/geth/chaindata" ]; then + echo "Initializing geth datadir with genesis block..." + geth init --datadir "$DATADIR" "$GENESIS_FILE" +fi + +# Import admin private key if provided and no accounts exist yet +if [ -n "$ADMIN_PRIVATE_KEY" ]; then + EXISTING_ACCOUNTS=$(geth account list --datadir "$DATADIR" 2>/dev/null || true) + if [ -z "$EXISTING_ACCOUNTS" ]; then + echo "Importing admin private key..." + TMPKEY=$(mktemp) + echo "$ADMIN_PRIVATE_KEY" > "$TMPKEY" + geth account import --datadir "$DATADIR" --password /dev/null --lightkdf "$TMPKEY" + rm -f "$TMPKEY" + else + echo "Account(s) already exist, skipping import." + fi +fi + +echo "Starting geth node..." +exec geth \ + --datadir "$DATADIR" \ + --networkid 8888 \ + --http \ + --http.addr 0.0.0.0 \ + --http.port 8545 \ + --http.api eth,net,web3,personal,txpool \ + --http.corsdomain "*" \ + --http.vhosts "*" \ + --ws \ + --ws.addr 0.0.0.0 \ + --ws.port 8546 \ + --ws.api eth,net,web3 \ + --ws.origins "*" \ + --mine \ + --miner.etherbase "$ADMIN_ADDRESS" \ + --unlock "$ADMIN_ADDRESS" \ + --password /dev/null \ + --allow-insecure-unlock \ + --nodiscover \ + --maxpeers 0 \ + --syncmode full \ + --gcmode archive diff --git a/docker/.env.example b/docker/.env.example index d1171b6..6599bf5 100644 --- a/docker/.env.example +++ b/docker/.env.example @@ -24,3 +24,9 @@ PUBLIC_HOST=play.yourdomain.com # Cloudflare API Token (create at https://dash.cloudflare.com/profile/api-tokens) # Permissions needed: Zone > DNS > Edit CF_API_TOKEN=your_cloudflare_api_token + +# AfterCoin Blockchain (private Ethereum chain for casino tokens) +# Generate with: node -e "const {ethers}=require('ethers');const w=ethers.Wallet.createRandom();console.log(w.address,w.privateKey)" +AFC_ADMIN_ADDRESS=0xYOUR_ADMIN_ADDRESS +AFC_ADMIN_PRIVATE_KEY=your_private_key_without_0x_prefix +AFC_BRIDGE_SECRET=change_me_in_production diff --git a/docker/docker-compose.dev.yml b/docker/docker-compose.dev.yml index 0113cb1..11f59f5 100644 --- a/docker/docker-compose.dev.yml +++ b/docker/docker-compose.dev.yml @@ -116,8 +116,47 @@ services: limits: memory: 8G + geth: + build: + context: ../blockchain + dockerfile: Dockerfile + restart: unless-stopped + environment: + ADMIN_PRIVATE_KEY: ${AFC_ADMIN_PRIVATE_KEY} + ADMIN_ADDRESS: ${AFC_ADMIN_ADDRESS} + ports: + - "8545:8545" + - "8546:8546" + volumes: + - geth_data:/data + deploy: + resources: + limits: + memory: 1G + + afc-bridge: + build: + context: ../services/afc-bridge + dockerfile: Dockerfile + restart: unless-stopped + depends_on: + - geth + environment: + GETH_RPC_URL: http://geth:8545 + ADMIN_PRIVATE_KEY: ${AFC_ADMIN_PRIVATE_KEY} + BRIDGE_SECRET: ${AFC_BRIDGE_SECRET} + PORT: 3001 + DB_PATH: /data/bridge.db + GAS_FUND_AMOUNT: "0.01" + ports: + - "3001:3001" + volumes: + - afc_bridge_data:/data + volumes: postgres_data: minio_data: openfusion_data: minecraft_ftb_data: + geth_data: + afc_bridge_data: diff --git a/services/afc-bridge/Dockerfile b/services/afc-bridge/Dockerfile new file mode 100644 index 0000000..4018b79 --- /dev/null +++ b/services/afc-bridge/Dockerfile @@ -0,0 +1,13 @@ +FROM node:20-alpine + +WORKDIR /app + +COPY package.json package-lock.json* ./ +RUN npm install --production + +COPY contracts/ ./contracts/ +COPY src/ ./src/ + +EXPOSE 3001 + +CMD ["node", "src/index.js"] diff --git a/services/afc-bridge/contracts/AfterCoin.json b/services/afc-bridge/contracts/AfterCoin.json new file mode 100644 index 0000000..eedd4aa --- /dev/null +++ b/services/afc-bridge/contracts/AfterCoin.json @@ -0,0 +1,357 @@ +{ + "contractName": "AfterCoin", + "abi": [ + { + "inputs": [], + "stateMutability": "nonpayable", + "type": "constructor" + }, + { + "inputs": [ + { + "internalType": "address", + "name": "spender", + "type": "address" + }, + { + "internalType": "uint256", + "name": "required", + "type": "uint256" + }, + { + "internalType": "uint256", + "name": "available", + "type": "uint256" + } + ], + "name": "InsufficientAllowance", + "type": "error" + }, + { + "inputs": [ + { + "internalType": "address", + "name": "account", + "type": "address" + }, + { + "internalType": "uint256", + "name": "required", + "type": "uint256" + }, + { + "internalType": "uint256", + "name": "available", + "type": "uint256" + } + ], + "name": "InsufficientBalance", + "type": "error" + }, + { + "inputs": [], + "name": "NotOwner", + "type": "error" + }, + { + "inputs": [], + "name": "ZeroAddress", + "type": "error" + }, + { + "anonymous": false, + "inputs": [ + { + "indexed": true, + "internalType": "address", + "name": "owner", + "type": "address" + }, + { + "indexed": true, + "internalType": "address", + "name": "spender", + "type": "address" + }, + { + "indexed": false, + "internalType": "uint256", + "name": "value", + "type": "uint256" + } + ], + "name": "Approval", + "type": "event" + }, + { + "anonymous": false, + "inputs": [ + { + "indexed": true, + "internalType": "address", + "name": "from", + "type": "address" + }, + { + "indexed": true, + "internalType": "address", + "name": "to", + "type": "address" + }, + { + "indexed": false, + "internalType": "uint256", + "name": "value", + "type": "uint256" + } + ], + "name": "Transfer", + "type": "event" + }, + { + "inputs": [ + { + "internalType": "address", + "name": "tokenOwner", + "type": "address" + }, + { + "internalType": "address", + "name": "spender", + "type": "address" + } + ], + "name": "allowance", + "outputs": [ + { + "internalType": "uint256", + "name": "", + "type": "uint256" + } + ], + "stateMutability": "view", + "type": "function" + }, + { + "inputs": [ + { + "internalType": "address", + "name": "spender", + "type": "address" + }, + { + "internalType": "uint256", + "name": "amount", + "type": "uint256" + } + ], + "name": "approve", + "outputs": [ + { + "internalType": "bool", + "name": "", + "type": "bool" + } + ], + "stateMutability": "nonpayable", + "type": "function" + }, + { + "inputs": [ + { + "internalType": "address", + "name": "account", + "type": "address" + } + ], + "name": "balanceOf", + "outputs": [ + { + "internalType": "uint256", + "name": "", + "type": "uint256" + } + ], + "stateMutability": "view", + "type": "function" + }, + { + "inputs": [ + { + "internalType": "address", + "name": "from", + "type": "address" + }, + { + "internalType": "address", + "name": "to", + "type": "address" + }, + { + "internalType": "uint256", + "name": "amount", + "type": "uint256" + } + ], + "name": "bridgeTransfer", + "outputs": [], + "stateMutability": "nonpayable", + "type": "function" + }, + { + "inputs": [ + { + "internalType": "address", + "name": "from", + "type": "address" + }, + { + "internalType": "uint256", + "name": "amount", + "type": "uint256" + } + ], + "name": "burnFrom", + "outputs": [], + "stateMutability": "nonpayable", + "type": "function" + }, + { + "inputs": [], + "name": "decimals", + "outputs": [ + { + "internalType": "uint8", + "name": "", + "type": "uint8" + } + ], + "stateMutability": "pure", + "type": "function" + }, + { + "inputs": [ + { + "internalType": "address", + "name": "to", + "type": "address" + }, + { + "internalType": "uint256", + "name": "amount", + "type": "uint256" + } + ], + "name": "mint", + "outputs": [], + "stateMutability": "nonpayable", + "type": "function" + }, + { + "inputs": [], + "name": "name", + "outputs": [ + { + "internalType": "string", + "name": "", + "type": "string" + } + ], + "stateMutability": "pure", + "type": "function" + }, + { + "inputs": [], + "name": "owner", + "outputs": [ + { + "internalType": "address", + "name": "", + "type": "address" + } + ], + "stateMutability": "view", + "type": "function" + }, + { + "inputs": [], + "name": "symbol", + "outputs": [ + { + "internalType": "string", + "name": "", + "type": "string" + } + ], + "stateMutability": "pure", + "type": "function" + }, + { + "inputs": [], + "name": "totalSupply", + "outputs": [ + { + "internalType": "uint256", + "name": "", + "type": "uint256" + } + ], + "stateMutability": "view", + "type": "function" + }, + { + "inputs": [ + { + "internalType": "address", + "name": "to", + "type": "address" + }, + { + "internalType": "uint256", + "name": "amount", + "type": "uint256" + } + ], + "name": "transfer", + "outputs": [ + { + "internalType": "bool", + "name": "", + "type": "bool" + } + ], + "stateMutability": "nonpayable", + "type": "function" + }, + { + "inputs": [ + { + "internalType": "address", + "name": "from", + "type": "address" + }, + { + "internalType": "address", + "name": "to", + "type": "address" + }, + { + "internalType": "uint256", + "name": "amount", + "type": "uint256" + } + ], + "name": "transferFrom", + "outputs": [ + { + "internalType": "bool", + "name": "", + "type": "bool" + } + ], + "stateMutability": "nonpayable", + "type": "function" + } + ], + "bytecode": 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b/services/afc-bridge/package.json new file mode 100644 index 0000000..f32ef80 --- /dev/null +++ b/services/afc-bridge/package.json @@ -0,0 +1,15 @@ +{ + "name": "afc-bridge", + "version": "1.0.0", + "description": "AfterCoin bridge API - syncs Minecraft casino balances to private Ethereum chain", + "main": "src/index.js", + "scripts": { + "start": "node src/index.js", + "deploy": "node src/deploy.js" + }, + "dependencies": { + "express": "^4.21.0", + "ethers": "^6.13.0", + "better-sqlite3": "^11.0.0" + } +} diff --git a/services/afc-bridge/src/config.js b/services/afc-bridge/src/config.js new file mode 100644 index 0000000..abef7d2 --- /dev/null +++ b/services/afc-bridge/src/config.js @@ -0,0 +1,23 @@ +if (!process.env.ADMIN_PRIVATE_KEY) { + throw new Error("ADMIN_PRIVATE_KEY environment variable is required"); +} + +if (!process.env.BRIDGE_SECRET) { + throw new Error("BRIDGE_SECRET environment variable is required"); +} + +// Normalize private key to have 0x prefix for ethers.js +const rawKey = process.env.ADMIN_PRIVATE_KEY; +const normalizedKey = rawKey.startsWith("0x") ? rawKey : "0x" + rawKey; + +const config = { + GETH_RPC_URL: process.env.GETH_RPC_URL || "http://geth:8545", + ADMIN_PRIVATE_KEY: normalizedKey, + AFC_CONTRACT_ADDRESS: process.env.AFC_CONTRACT_ADDRESS || "", + BRIDGE_SECRET: process.env.BRIDGE_SECRET, + PORT: parseInt(process.env.PORT) || 3001, + DB_PATH: process.env.DB_PATH || "/data/bridge.db", + GAS_FUND_AMOUNT: process.env.GAS_FUND_AMOUNT || "0.01", +}; + +module.exports = config; diff --git a/services/afc-bridge/src/db.js b/services/afc-bridge/src/db.js new file mode 100644 index 0000000..bd3c8c2 --- /dev/null +++ b/services/afc-bridge/src/db.js @@ -0,0 +1,64 @@ +const Database = require("better-sqlite3"); +const config = require("./config"); + +const db = new Database(config.DB_PATH); + +// Enable WAL mode for better concurrent read performance +db.pragma("journal_mode = WAL"); + +// Create tables if they don't exist +db.exec(` + CREATE TABLE IF NOT EXISTS wallets ( + disk_id TEXT PRIMARY KEY, + address TEXT NOT NULL, + private_key TEXT NOT NULL, + name TEXT, + created_at TEXT DEFAULT CURRENT_TIMESTAMP + ); + + CREATE TABLE IF NOT EXISTS contract_state ( + key TEXT PRIMARY KEY, + value TEXT + ); +`); + +function getWallet(diskId) { + const stmt = db.prepare("SELECT * FROM wallets WHERE disk_id = ?"); + return stmt.get(diskId) || null; +} + +function createWallet(diskId, address, privateKey, name) { + const stmt = db.prepare( + "INSERT INTO wallets (disk_id, address, private_key, name) VALUES (?, ?, ?, ?)" + ); + return stmt.run(diskId, address, privateKey, name); +} + +function getContractAddress() { + const stmt = db.prepare( + "SELECT value FROM contract_state WHERE key = 'contract_address'" + ); + const row = stmt.get(); + return row ? row.value : null; +} + +function setContractAddress(address) { + const stmt = db.prepare( + "INSERT OR REPLACE INTO contract_state (key, value) VALUES ('contract_address', ?)" + ); + return stmt.run(address); +} + +function getAllWallets() { + const stmt = db.prepare("SELECT * FROM wallets"); + return stmt.all(); +} + +module.exports = { + db, + getWallet, + createWallet, + getContractAddress, + setContractAddress, + getAllWallets, +}; diff --git a/services/afc-bridge/src/deploy.js b/services/afc-bridge/src/deploy.js new file mode 100644 index 0000000..9d0d55c --- /dev/null +++ b/services/afc-bridge/src/deploy.js @@ -0,0 +1,33 @@ +const config = require("./config"); +const db = require("./db"); +const { waitForGeth, deployContract } = require("./ethereum"); + +async function main() { + console.log("=== AfterCoin Contract Deployment ==="); + + // Wait for the Geth node to be reachable + await waitForGeth(); + + // Check if already deployed + const existing = db.getContractAddress(); + if (existing) { + console.log("Contract already deployed at:", existing); + console.log( + "To redeploy, clear the contract_state table in the database." + ); + return existing; + } + + // Deploy the contract + const address = await deployContract(); + console.log("=== Deployment complete ==="); + console.log("Contract address:", address); + return address; +} + +main() + .then(() => process.exit(0)) + .catch((err) => { + console.error("Deployment failed:", err); + process.exit(1); + }); diff --git a/services/afc-bridge/src/ethereum.js b/services/afc-bridge/src/ethereum.js new file mode 100644 index 0000000..78083dd --- /dev/null +++ b/services/afc-bridge/src/ethereum.js @@ -0,0 +1,64 @@ +const { ethers } = require("ethers"); +const path = require("path"); +const config = require("./config"); +const db = require("./db"); + +const abiPath = path.join(__dirname, "..", "contracts", "AfterCoin.json"); +const artifact = require(abiPath); + +const provider = new ethers.JsonRpcProvider(config.GETH_RPC_URL); +const adminWallet = new ethers.Wallet(config.ADMIN_PRIVATE_KEY, provider); + +function getContract() { + const address = db.getContractAddress() || config.AFC_CONTRACT_ADDRESS; + if (!address) { + throw new Error( + "AfterCoin contract not deployed yet. Run 'npm run deploy' first." + ); + } + return new ethers.Contract(address, artifact.abi, adminWallet); +} + +async function deployContract() { + console.log("Deploying AfterCoin contract..."); + console.log("Admin address:", adminWallet.address); + + const factory = new ethers.ContractFactory( + artifact.abi, + artifact.bytecode, + adminWallet + ); + + const contract = await factory.deploy(); + await contract.waitForDeployment(); + + const address = await contract.getAddress(); + db.setContractAddress(address); + + console.log("AfterCoin deployed at:", address); + return address; +} + +async function waitForGeth(retryInterval = 5000, maxRetries = 60) { + for (let i = 0; i < maxRetries; i++) { + try { + const blockNumber = await provider.getBlockNumber(); + console.log(`Geth is ready (block #${blockNumber})`); + return; + } catch (err) { + console.log( + `Waiting for Geth... attempt ${i + 1}/${maxRetries} (${err.message})` + ); + await new Promise((resolve) => setTimeout(resolve, retryInterval)); + } + } + throw new Error(`Geth did not respond after ${maxRetries} retries`); +} + +module.exports = { + provider, + adminWallet, + getContract, + deployContract, + waitForGeth, +}; diff --git a/services/afc-bridge/src/index.js b/services/afc-bridge/src/index.js new file mode 100644 index 0000000..a0bfd00 --- /dev/null +++ b/services/afc-bridge/src/index.js @@ -0,0 +1,79 @@ +const express = require("express"); +const config = require("./config"); +const db = require("./db"); +const { waitForGeth, deployContract, getContract } = require("./ethereum"); + +const registerRouter = require("./routes/register"); +const depositRouter = require("./routes/deposit"); +const withdrawRouter = require("./routes/withdraw"); +const balanceRouter = require("./routes/balance"); +const walletRouter = require("./routes/wallet"); + +const app = express(); + +// Parse JSON request bodies +app.use(express.json()); + +// Auth middleware — only applies to state-changing (POST) routes +app.use((req, res, next) => { + if (req.method !== "POST") { + return next(); + } + + const secret = req.headers["x-bridge-secret"]; + if (secret !== config.BRIDGE_SECRET) { + return res + .status(401) + .json({ success: false, error: "Unauthorized: invalid bridge secret" }); + } + + next(); +}); + +// Mount routes +app.use(registerRouter); +app.use(depositRouter); +app.use(withdrawRouter); +app.use(balanceRouter); +app.use(walletRouter); + +// Global error handler +app.use((err, req, res, next) => { + console.error("Unhandled error:", err); + res.status(500).json({ + success: false, + error: err.message || "Internal server error", + }); +}); + +// Startup sequence +async function start() { + // 1. Wait for Geth node to be reachable + await waitForGeth(); + + // 2. Deploy contract if not already deployed + const existing = db.getContractAddress(); + if (!existing) { + console.log("No contract found in database, deploying..."); + await deployContract(); + } else { + console.log("Contract already deployed at:", existing); + } + + // Verify the contract is accessible + const contract = getContract(); + const contractAddress = await contract.getAddress(); + + // 3. Start listening + app.listen(config.PORT, () => { + console.log("=== AFC Bridge API ==="); + console.log(`Listening on port ${config.PORT}`); + console.log(`AfterCoin contract: ${contractAddress}`); + console.log(`Geth RPC: ${config.GETH_RPC_URL}`); + }); +} + +start().catch((err) => { + console.error("Failed to start AFC Bridge:", err); + process.exit(1); +}); diff --git a/services/afc-bridge/src/routes/balance.js b/services/afc-bridge/src/routes/balance.js new file mode 100644 index 0000000..f6e84d5 --- /dev/null +++ b/services/afc-bridge/src/routes/balance.js @@ -0,0 +1,31 @@ +const { Router } = require("express"); +const db = require("../db"); +const { getContract } = require("../ethereum"); + +const router = Router(); + +router.get("/api/balance/:diskId", async (req, res, next) => { + try { + const { diskId } = req.params; + + const wallet = db.getWallet(diskId); + if (!wallet) { + return res + .status(404) + .json({ success: false, error: "Wallet not found for this diskId" }); + } + + const contract = getContract(); + const balance = await contract.balanceOf(wallet.address); + + res.json({ + success: true, + diskId, + balance: Number(balance), + }); + } catch (err) { + next(err); + } +}); + +module.exports = router; diff --git a/services/afc-bridge/src/routes/deposit.js b/services/afc-bridge/src/routes/deposit.js new file mode 100644 index 0000000..f5139e0 --- /dev/null +++ b/services/afc-bridge/src/routes/deposit.js @@ -0,0 +1,54 @@ +const { Router } = require("express"); +const db = require("../db"); +const { getContract } = require("../ethereum"); +const txQueue = require("../txQueue"); + +const router = Router(); + +router.post("/api/deposit", async (req, res, next) => { + try { + const { diskId, amount } = req.body; + + if (!diskId || amount === undefined) { + return res + .status(400) + .json({ success: false, error: "diskId and amount are required" }); + } + + if (!Number.isInteger(amount) || amount <= 0) { + return res + .status(400) + .json({ success: false, error: "amount must be a positive integer" }); + } + + const wallet = db.getWallet(diskId); + if (!wallet) { + return res + .status(404) + .json({ success: false, error: "Wallet not found for this diskId" }); + } + + const contract = getContract(); + + // Mint tokens to the player's wallet via the transaction queue + const receipt = await txQueue.enqueue(async () => { + const tx = await contract.mint(wallet.address, amount); + return tx.wait(); + }); + + // Read the new on-chain balance + const balance = await contract.balanceOf(wallet.address); + + res.json({ + success: true, + diskId, + amount, + balance: Number(balance), + txHash: receipt.hash, + }); + } catch (err) { + next(err); + } +}); + +module.exports = router; diff --git a/services/afc-bridge/src/routes/register.js b/services/afc-bridge/src/routes/register.js new file mode 100644 index 0000000..d68228f --- /dev/null +++ b/services/afc-bridge/src/routes/register.js @@ -0,0 +1,60 @@ +const { Router } = require("express"); +const { ethers } = require("ethers"); +const config = require("../config"); +const db = require("../db"); +const { adminWallet, provider } = require("../ethereum"); +const txQueue = require("../txQueue"); + +const router = Router(); + +router.post("/api/register", async (req, res, next) => { + try { + const { diskId, name } = req.body; + + if (!diskId || !name) { + return res + .status(400) + .json({ success: false, error: "diskId and name are required" }); + } + + // Check if wallet already exists + const existing = db.getWallet(diskId); + if (existing) { + return res.json({ + success: true, + diskId: existing.disk_id, + address: existing.address, + name: existing.name, + }); + } + + // Create a new random wallet + const wallet = ethers.Wallet.createRandom(); + + // Save to database + db.createWallet(diskId, wallet.address, wallet.privateKey, name); + + // Fund the new wallet with gas ETH from the admin wallet + await txQueue.enqueue(async () => { + const tx = await adminWallet.sendTransaction({ + to: wallet.address, + value: ethers.parseEther(config.GAS_FUND_AMOUNT), + }); + await tx.wait(); + console.log( + `Funded ${wallet.address} with ${config.GAS_FUND_AMOUNT} ETH (tx: ${tx.hash})` + ); + }); + + res.json({ + success: true, + diskId, + address: wallet.address, + name, + }); + } catch (err) { + next(err); + } +}); + +module.exports = router; diff --git a/services/afc-bridge/src/routes/wallet.js b/services/afc-bridge/src/routes/wallet.js new file mode 100644 index 0000000..8711d4e --- /dev/null +++ b/services/afc-bridge/src/routes/wallet.js @@ -0,0 +1,29 @@ +const { Router } = require("express"); +const db = require("../db"); + +const router = Router(); + +router.get("/api/wallet/:diskId", async (req, res, next) => { + try { + const { diskId } = req.params; + + const wallet = db.getWallet(diskId); + if (!wallet) { + return res + .status(404) + .json({ success: false, error: "Wallet not found for this diskId" }); + } + + res.json({ + success: true, + diskId, + address: wallet.address, + privateKey: wallet.private_key, + name: wallet.name, + }); + } catch (err) { + next(err); + } +}); + +module.exports = router; diff --git a/services/afc-bridge/src/routes/withdraw.js b/services/afc-bridge/src/routes/withdraw.js new file mode 100644 index 0000000..2f25a8a --- /dev/null +++ b/services/afc-bridge/src/routes/withdraw.js @@ -0,0 +1,63 @@ +const { Router } = require("express"); +const db = require("../db"); +const { getContract } = require("../ethereum"); +const txQueue = require("../txQueue"); + +const router = Router(); + +router.post("/api/withdraw", async (req, res, next) => { + try { + const { diskId, amount } = req.body; + + if (!diskId || amount === undefined) { + return res + .status(400) + .json({ success: false, error: "diskId and amount are required" }); + } + + if (!Number.isInteger(amount) || amount <= 0) { + return res + .status(400) + .json({ success: false, error: "amount must be a positive integer" }); + } + + const wallet = db.getWallet(diskId); + if (!wallet) { + return res + .status(404) + .json({ success: false, error: "Wallet not found for this diskId" }); + } + + const contract = getContract(); + + // Check on-chain balance before burning + const balance = await contract.balanceOf(wallet.address); + if (Number(balance) < amount) { + return res.status(400).json({ + success: false, + error: `Insufficient balance: has ${Number(balance)}, requested ${amount}`, + }); + } + + // Burn tokens from the player's wallet via the transaction queue + const receipt = await txQueue.enqueue(async () => { + const tx = await contract.burnFrom(wallet.address, amount); + return tx.wait(); + }); + + // Read updated balance + const newBalance = await contract.balanceOf(wallet.address); + + res.json({ + success: true, + diskId, + amount, + balance: Number(newBalance), + txHash: receipt.hash, + }); + } catch (err) { + next(err); + } +}); + +module.exports = router; diff --git a/services/afc-bridge/src/txQueue.js b/services/afc-bridge/src/txQueue.js new file mode 100644 index 0000000..3f416f0 --- /dev/null +++ b/services/afc-bridge/src/txQueue.js @@ -0,0 +1,9 @@ +let queue = Promise.resolve(); + +function enqueue(fn) { + const task = queue.then(() => fn()); + queue = task.catch(() => {}); // don't let rejections break the chain + return task; +} + +module.exports = { enqueue };