https://github.com/volumefi/gpu-dao-cw

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Host: GitHub
URL: https://github.com/volumefi/gpu-dao-cw
Owner: VolumeFi
License: apache-2.0
Created: 2025-04-10T15:46:06.000Z (about 1 year ago)
Default Branch: main
Last Pushed: 2025-07-04T20:56:44.000Z (11 months ago)
Last Synced: 2025-07-04T21:35:20.796Z (11 months ago)
Language: Rust
Size: 28.3 KB
Stars: 0
Watchers: 2
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE

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README

# GPU DAO CosmWasm Smart Contract

A CosmWasm smart contract for managing GPU DAO token purchases, finalization, and cross-chain operations via Paloma network integration.

## Table of Contents

- [Overview](#overview)
- [Contract Architecture](#contract-architecture)
- [State Management](#state-management)
- [Function Documentation](#function-documentation)
- [Security Considerations](#security-considerations)
- [Testing](#testing)
- [Building and Deployment](#building-and-deployment)

## Overview

This smart contract manages a GPU DAO token sale with the following key features:
- Multi-owner access control
- Token purchase tracking
- Cross-chain operations via Paloma network
- Token factory integration for denom creation and minting
- Refund mechanism
- Configurable gas and service fees

## Contract Architecture

### Core Modules
- **`contract.rs`**: Main contract logic with instantiate, execute, and query entry points
- **`msg.rs`**: Message definitions for contract interactions
- **`state.rs`**: State management and storage structures
- **`error.rs`**: Custom error definitions

### Dependencies
- `cosmwasm-std`: Core CosmWasm functionality
- `cw-storage-plus`: Enhanced storage utilities
- `ethabi`: Ethereum ABI encoding for cross-chain calls
- `cw2`: Contract versioning

## State Management

### Global State
```rust
pub struct State {
pub owners: Vec, // List of authorized contract owners
pub finished: bool, // Whether the contract has been finalized
}
```

### Storage Maps
- `PURCHASE_LIST`: Maps purchaser addresses to their purchase amounts

## Function Documentation

### Entry Point Functions

#### `instantiate`
**Purpose**: Initializes the contract with initial owners and sets up the contract state.

**Parameters**:
- `deps`: Dependencies for contract operations
- `_env`: Contract environment (unused)
- `info`: Message information containing sender
- `msg`: Instantiation message with initial owners list

**Security Checks**:
- Validates all provided owner addresses
- Automatically adds the sender as an owner if not already included

**Example Usage**:
```json
{
"instantiate": {
"owners": [
"cosmos1abc123...",
"cosmos1def456..."
]
}
}
```

**Security Considerations**:
- ⚠️ **CRITICAL**: No maximum limit on number of owners
- ⚠️ **CRITICAL**: No validation of owner address format beyond basic validation
- ⚠️ **MEDIUM**: Sender is automatically added as owner without explicit consent

---

#### `execute`
**Purpose**: Main execution entry point that routes messages to appropriate handlers.

**Message Types**:
- `Purchase`: Record a token purchase
- `Finalize`: Complete the token sale and mint tokens
- `Refund`: Process refunds (placeholder implementation)
- `SetPaloma`: Configure Paloma network settings
- `UpdateCompass`: Update compass contract address
- `UpdateRefundWallet`: Update refund wallet address
- `UpdateGasFee`: Update gas fee configuration
- `UpdateServiceFeeCollector`: Update service fee collector address
- `UpdateServiceFee`: Update service fee amount

---

### Core Business Logic Functions

#### `execute::purchase`
**Purpose**: Records a token purchase for a specified purchaser and amount.

**Parameters**:
- `deps`: Dependencies for contract operations
- `info`: Message information containing sender
- `purchaser`: Address of the purchaser
- `amount`: Purchase amount in base units

**Security Checks**:
- Verifies sender is an authorized owner
- Ensures contract is not already finalized

**State Changes**:
- Updates `PURCHASE_LIST` map with purchaser's total amount

**Example Usage**:
```json
{
"purchase": {
"purchaser": "cosmos1abc123...",
"amount": "1000000"
}
}
```

**Security Considerations**:
- ⚠️ **HIGH**: No validation of purchaser address format
- ⚠️ **MEDIUM**: No maximum purchase amount limits
- ⚠️ **MEDIUM**: No duplicate purchase prevention
- ⚠️ **LOW**: No minimum purchase amount validation

---

#### `execute::finalize`
**Purpose**: Finalizes the token sale, creates denom, and mints initial tokens.

**Parameters**:
- `deps`: Dependencies for contract operations
- `info`: Message information containing sender
- `mint_amount`: Amount of tokens to mint
- `distribute_amount`: Amount to distribute
- `pusd_amount`: PUSD token amount

**Security Checks**:
- Verifies sender is an authorized owner
- Ensures contract is not already finalized

**State Changes**:
- Sets `finished` flag to true
- Creates denom via TokenFactory
- Mints specified amount of tokens

**Cross-Chain Operations**:
- Sends `TokenFactoryMsg` to create denom
- Sends `TokenFactoryMsg` to mint tokens

**Example Usage**:
```json
{
"finalize": {
"mint_amount": "1000000000",
"distribute_amount": "500000000",
"pusd_amount": "1000000"
}
}
```

**Security Considerations**:
- ⚠️ **CRITICAL**: Undefined variables `subdenom`, `metadata`, `denom`, `denom_creator` in implementation
- ⚠️ **HIGH**: No validation of mint amounts
- ⚠️ **HIGH**: No checks for reasonable token economics
- ⚠️ **MEDIUM**: No reentrancy protection
- ⚠️ **LOW**: No event emission for transparency

---

#### `execute::refund`
**Purpose**: Processes refunds for purchasers (placeholder implementation).

**Parameters**:
- `deps`: Dependencies for contract operations

**Current Implementation**: Returns success response without actual refund logic.

**Security Considerations**:
- ⚠️ **CRITICAL**: Function is not implemented - no refund mechanism exists
- ⚠️ **HIGH**: No access control checks
- ⚠️ **HIGH**: No validation of refund eligibility

---

### Cross-Chain Configuration Functions

#### `execute::set_paloma`
**Purpose**: Configures Paloma network settings for cross-chain operations.

**Parameters**:
- `deps`: Dependencies for contract operations
- `chain_id`: Target chain identifier

**Security Checks**:
- Verifies sender is an authorized owner

**Cross-Chain Operations**:
- Sends `SchedulerMsg` to execute `set_paloma` function on target chain

**Example Usage**:
```json
{
"set_paloma": {
"chain_id": "ethereum-1"
}
}
```

**Security Considerations**:
- ⚠️ **HIGH**: No validation of chain_id format
- ⚠️ **MEDIUM**: No verification of target chain existence
- ⚠️ **LOW**: No error handling for failed cross-chain calls

---

#### `execute::update_compass`
**Purpose**: Updates the compass contract address for cross-chain operations.

**Parameters**:
- `deps`: Dependencies for contract operations
- `chain_id`: Target chain identifier
- `new_compass`: New compass contract address

**Security Checks**:
- Verifies sender is an authorized owner
- Validates new_compass address format

**Cross-Chain Operations**:
- Sends `SchedulerMsg` to execute `update_compass` function on target chain

**Example Usage**:
```json
{
"update_compass": {
"chain_id": "ethereum-1",
"new_compass": "0x1234567890abcdef..."
}
}
```

**Security Considerations**:
- ⚠️ **HIGH**: No validation of contract address checksum
- ⚠️ **MEDIUM**: No verification that address is a valid contract
- ⚠️ **LOW**: No event emission for address changes

---

#### `execute::update_refund_wallet`
**Purpose**: Updates the refund wallet address for cross-chain operations.

**Parameters**:
- `deps`: Dependencies for contract operations
- `chain_id`: Target chain identifier
- `new_refund_wallet`: New refund wallet address

**Security Checks**:
- Verifies sender is an authorized owner
- Validates new_refund_wallet address format

**Cross-Chain Operations**:
- Sends `SchedulerMsg` to execute `update_refund_wallet` function on target chain

**Example Usage**:
```json
{
"update_refund_wallet": {
"chain_id": "ethereum-1",
"new_refund_wallet": "0xabcdef1234567890..."
}
}
```

**Security Considerations**:
- ⚠️ **HIGH**: No validation of wallet address checksum
- ⚠️ **MEDIUM**: No verification that address can receive funds
- ⚠️ **LOW**: No event emission for wallet changes

---

#### `execute::update_gas_fee`
**Purpose**: Updates the gas fee configuration for cross-chain operations.

**Parameters**:
- `deps`: Dependencies for contract operations
- `chain_id`: Target chain identifier
- `new_gas_fee`: New gas fee amount (Uint256)

**Security Checks**:
- Verifies sender is an authorized owner

**Cross-Chain Operations**:
- Sends `SchedulerMsg` to execute `update_gas_fee` function on target chain

**Example Usage**:
```json
{
"update_gas_fee": {
"chain_id": "ethereum-1",
"new_gas_fee": "21000000000000"
}
}
```

**Security Considerations**:
- ⚠️ **HIGH**: No validation of reasonable gas fee ranges
- ⚠️ **MEDIUM**: No protection against excessive gas fees
- ⚠️ **LOW**: No event emission for fee changes

---

#### `execute::update_service_fee_collector`
**Purpose**: Updates the service fee collector address for cross-chain operations.

**Parameters**:
- `deps`: Dependencies for contract operations
- `chain_id`: Target chain identifier
- `new_service_fee_collector`: New service fee collector address

**Security Checks**:
- Verifies sender is an authorized owner
- Validates new_service_fee_collector address format

**Cross-Chain Operations**:
- Sends `SchedulerMsg` to execute `update_service_fee_collector` function on target chain

**Example Usage**:
```json
{
"update_service_fee_collector": {
"chain_id": "ethereum-1",
"new_service_fee_collector": "0xfedcba0987654321..."
}
}
```

**Security Considerations**:
- ⚠️ **HIGH**: No validation of address checksum
- ⚠️ **MEDIUM**: No verification that address can receive fees
- ⚠️ **LOW**: No event emission for collector changes

---

#### `execute::update_service_fee`
**Purpose**: Updates the service fee amount for cross-chain operations.

**Parameters**:
- `deps`: Dependencies for contract operations
- `chain_id`: Target chain identifier
- `new_service_fee`: New service fee amount (Uint256)

**Security Checks**:
- Verifies sender is an authorized owner

**Cross-Chain Operations**:
- Sends `SchedulerMsg` to execute `update_service_fee` function on target chain

**Example Usage**:
```json
{
"update_service_fee": {
"chain_id": "ethereum-1",
"new_service_fee": "1000000000000000000"
}
}
```

**Security Considerations**:
- ⚠️ **HIGH**: No validation of reasonable fee ranges
- ⚠️ **MEDIUM**: No protection against excessive service fees
- ⚠️ **LOW**: No event emission for fee changes

---

### Query Functions

#### `query`
**Purpose**: Handles query requests (currently unimplemented).

**Current Implementation**: Returns `unimplemented!()` error.

**Security Considerations**:
- ⚠️ **CRITICAL**: No query functionality implemented
- ⚠️ **HIGH**: No way to verify contract state
- ⚠️ **HIGH**: No transparency for purchasers

---

## Security Considerations

### Critical Issues
1. **Incomplete Implementation**: Several functions have placeholder implementations or undefined variables
2. **Missing Access Control**: Some functions lack proper authorization checks
3. **No Query Interface**: No way to verify contract state or purchase records
4. **Undefined Variables**: `finalize` function references undefined variables

### High Priority Issues
1. **Address Validation**: Insufficient validation of cross-chain addresses
2. **Amount Limits**: No maximum/minimum limits on critical amounts
3. **Error Handling**: Limited error handling for cross-chain operations
4. **Reentrancy**: No protection against reentrancy attacks

### Medium Priority Issues
1. **Event Emission**: Limited event emission for transparency
2. **Parameter Validation**: Insufficient validation of input parameters
3. **State Consistency**: No checks for state consistency across operations

### Low Priority Issues
1. **Gas Optimization**: Some operations could be optimized for gas efficiency
2. **Documentation**: Limited inline documentation for complex operations

## Testing

### Running Tests

```bash
# Run unit tests with backtraces
RUST_BACKTRACE=1 cargo unit-test

# Run tests with specific features
cargo test --features library

# Run tests with verbose output
cargo test -- --nocapture
```

### Test Coverage Areas

**Critical Test Cases**:
- Owner authorization for all privileged functions
- Purchase amount validation and limits
- Finalization state transitions
- Cross-chain message encoding
- Error handling for invalid inputs

**Recommended Test Scenarios**:
```rust
#[test]
fn test_owner_authorization() {
// Test that only owners can execute privileged functions
}

#[test]
fn test_purchase_validation() {
// Test purchase amount limits and validation
}

#[test]
fn test_finalization_flow() {
// Test complete finalization process
}

#[test]
fn test_cross_chain_message_encoding() {
// Test ABI encoding for cross-chain calls
}
```

## Building and Deployment

### Prerequisites
- Rust 1.58.1+
- `wasm32-unknown-unknown` target
- Docker (for optimization)

### Building

```bash
# Install wasm target
rustup target add wasm32-unknown-unknown

# Build for development
cargo wasm

# Generate schema
cargo schema

# Optimize for production
docker run --rm -v "$(pwd)":/code \
--mount type=volume,source="$(basename "$(pwd)")_cache",target=/target \
--mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
cosmwasm/optimizer:0.16.1
```

### Deployment Checklist

**Pre-Deployment**:
- [ ] Complete implementation of all placeholder functions
- [ ] Add comprehensive input validation
- [ ] Implement proper error handling
- [ ] Add event emission for all state changes
- [ ] Complete test coverage
- [ ] Security audit review

**Deployment**:
- [ ] Verify contract bytecode hash
- [ ] Test on testnet first
- [ ] Verify all cross-chain configurations
- [ ] Monitor initial transactions

**Post-Deployment**:
- [ ] Monitor contract events
- [ ] Verify cross-chain message delivery
- [ ] Test emergency procedures
- [ ] Document any issues found

## License

This project is licensed under the Apache License 2.0 - see the [LICENSE](LICENSE) file for details.

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