2b961611fd
✨ New Features: - AI-powered habit creation with natural language processing - HuggingFace transformers integration for sentiment analysis (tracked via Git LFS) - Advanced predictive analytics and behavioral insights - Voice & image input capabilities for hands-free habit tracking - Real-time notifications and community features - Plugin system with extensible architecture 🔧 Technical Improvements: - Comprehensive FastAPI backend with 30+ endpoints - React frontend with PWA capabilities - Advanced authentication with 2FA support - RBAC authorization system - Comprehensive security features (CSRF, rate limiting, audit logging) - Database migrations and health monitoring - Docker containerization support - Git LFS configured for large AI model files (2+ GB) 📚 Documentation & DevOps: - Complete deployment guides for multiple platforms - Professional README with feature highlights - GitHub Actions CI/CD workflows - Comprehensive API documentation - Security audit roadmap and compliance framework - Setup scripts for development environment 🧪 Testing & Quality: - Comprehensive test suite with 20+ test modules - Setup verification scripts - Working development environment with both backend and frontend - Health checks and monitoring systems 🌟 Ready for: - Portfolio showcasing - Community contributions - Production deployment - Professional presentation
421 lines
17 KiB
Python
421 lines
17 KiB
Python
"""
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WASM Plugin Runtime for LifeRPG
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This module provides a secure sandboxed environment for executing WASM plugins
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with controlled access to host functions and resource limits.
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"""
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import asyncio
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import json
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import logging
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import time
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from typing import Any, Dict, List, Optional, Callable
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from pathlib import Path
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import threading
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import queue
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# For WASM runtime, we'll use wasmtime-py
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try:
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import wasmtime
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except ImportError:
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wasmtime = None
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logging.warning("wasmtime-py not installed. Plugin execution will be limited.")
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from plugins import PluginMetadata, PluginPermission
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logger = logging.getLogger("liferpg.plugin_runtime")
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class ResourceMonitor:
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"""Enhanced resource monitoring with security controls."""
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def __init__(self, limits: Dict[str, Any]):
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self.memory_limit_mb = limits.get('memory_mb', 16)
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self.cpu_time_limit = limits.get('cpu_time_seconds', 5.0)
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self.network_requests_limit = limits.get('network_requests', 0) # Default: no network
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self.file_operations_limit = limits.get('file_operations', 0) # Default: no file access
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self.start_time = None
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self.peak_memory = 0
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self.network_requests_count = 0
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self.file_operations_count = 0
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self.blocked_operations = []
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def start_monitoring(self):
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"""Start monitoring resource usage."""
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self.start_time = time.time()
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self.peak_memory = 0
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self.network_requests_count = 0
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self.file_operations_count = 0
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self.blocked_operations = []
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def check_limits(self) -> bool:
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"""Check if resource limits have been exceeded."""
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if self.start_time is None:
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return True
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# Check CPU time limit
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elapsed = time.time() - self.start_time
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if elapsed > self.cpu_time_limit:
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self.blocked_operations.append(f"CPU time limit exceeded: {elapsed:.2f}s > {self.cpu_time_limit}s")
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return False
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return True
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def check_network_permission(self) -> bool:
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"""Check if plugin can make network requests."""
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if self.network_requests_count >= self.network_requests_limit:
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self.blocked_operations.append(f"Network requests limit exceeded: {self.network_requests_count}")
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return False
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self.network_requests_count += 1
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return True
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def check_file_permission(self, path: str) -> bool:
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"""Check if plugin can access files."""
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if self.file_operations_count >= self.file_operations_limit:
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self.blocked_operations.append(f"File operations limit exceeded: {self.file_operations_count}")
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return False
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# Additional security: restrict file access to specific directories
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allowed_paths = ['/tmp/liferpg_plugin', '/var/liferpg/plugin_data']
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if not any(path.startswith(allowed) for allowed in allowed_paths):
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self.blocked_operations.append(f"File access denied: {path} not in allowed paths")
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return False
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self.file_operations_count += 1
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return True
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def _check_cpu_time_limit(self, start_time: float) -> bool:
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"""Check if plugin has exceeded CPU time limit."""
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elapsed = time.time() - start_time
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if elapsed > self.cpu_time_limit:
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logger.warning(f"Plugin exceeded CPU time limit: {elapsed:.2f}s > {self.cpu_time_limit}s")
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return False
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return True
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def update_memory_usage(self, memory_bytes: int):
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"""Update peak memory usage."""
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memory_mb = memory_bytes / (1024 * 1024)
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if memory_mb > self.peak_memory:
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self.peak_memory = memory_mb
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if memory_mb > self.memory_limit_mb:
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logger.warning(f"Plugin exceeded memory limit: {memory_mb:.2f}MB > {self.memory_limit_mb}MB")
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return False
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return True
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class PluginHostFunctions:
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"""Host functions available to WASM plugins."""
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def __init__(self, plugin_id: str, permissions: List[PluginPermission], db_session):
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self.plugin_id = plugin_id
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self.permissions = permissions
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self.db = db_session
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self.extension_points = {}
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def has_permission(self, permission: PluginPermission) -> bool:
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"""Check if plugin has a specific permission."""
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return permission in self.permissions
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# Console/Logging functions
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def console_log(self, caller, message_ptr: int, message_len: int) -> None:
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"""Log a message from the plugin."""
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try:
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memory = caller.get_export("memory")
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message_bytes = memory.data(caller)[message_ptr:message_ptr + message_len]
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message = message_bytes.decode('utf-8')
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logger.info(f"Plugin {self.plugin_id}: {message}")
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except Exception as e:
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logger.error(f"Error in console_log: {e}")
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def console_error(self, caller, message_ptr: int, message_len: int) -> None:
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"""Log an error message from the plugin."""
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try:
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memory = caller.get_export("memory")
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message_bytes = memory.data(caller)[message_ptr:message_ptr + message_len]
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message = message_bytes.decode('utf-8')
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logger.error(f"Plugin {self.plugin_id}: {message}")
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except Exception as e:
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logger.error(f"Error in console_error: {e}")
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# Data access functions
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def get_habits(self, caller) -> int:
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"""Get user habits (if permission granted)."""
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if not self.has_permission(PluginPermission.HABITS_READ):
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logger.warning(f"Plugin {self.plugin_id} attempted to access habits without permission")
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return 0
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try:
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# This would normally query the database
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# For now, return a pointer to JSON data
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habits_data = json.dumps([
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{"id": 1, "title": "Exercise", "streak": 5},
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{"id": 2, "title": "Read", "streak": 3}
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])
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# Allocate memory in WASM and write data
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memory = caller.get_export("memory")
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alloc_func = caller.get_export("plugin_alloc")
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data_bytes = habits_data.encode('utf-8')
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ptr = alloc_func(caller, len(data_bytes))
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memory.data(caller)[ptr:ptr + len(data_bytes)] = data_bytes
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return ptr
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except Exception as e:
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logger.error(f"Error in get_habits: {e}")
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return 0
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def create_habit(self, caller, name_ptr: int, name_len: int) -> int:
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"""Create a new habit (if permission granted)."""
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if not self.has_permission(PluginPermission.HABITS_WRITE):
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logger.warning(f"Plugin {self.plugin_id} attempted to create habit without permission")
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return 0
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try:
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memory = caller.get_export("memory")
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name_bytes = memory.data(caller)[name_ptr:name_ptr + name_len]
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name = name_bytes.decode('utf-8')
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# Create habit in database (simplified)
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logger.info(f"Plugin {self.plugin_id} creating habit: {name}")
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# Return new habit ID
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return 123 # Mock ID
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except Exception as e:
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logger.error(f"Error in create_habit: {e}")
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return 0
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# UI Extension functions
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def register_dashboard_widget(self, caller, config_ptr: int, config_len: int) -> int:
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"""Register a dashboard widget."""
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if not self.has_permission(PluginPermission.UI_DASHBOARD):
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logger.warning(f"Plugin {self.plugin_id} attempted to register widget without permission")
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return 0
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try:
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memory = caller.get_export("memory")
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config_bytes = memory.data(caller)[config_ptr:config_ptr + config_len]
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config = json.loads(config_bytes.decode('utf-8'))
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widget_id = f"{self.plugin_id}_{config.get('id', 'widget')}"
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if 'dashboard' not in self.extension_points:
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self.extension_points['dashboard'] = []
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self.extension_points['dashboard'].append({
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'id': widget_id,
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'plugin_id': self.plugin_id,
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'config': config
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})
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logger.info(f"Plugin {self.plugin_id} registered dashboard widget: {widget_id}")
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return 1 # Success
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except Exception as e:
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logger.error(f"Error in register_dashboard_widget: {e}")
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return 0
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class WasmPluginRuntime:
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"""WASM Plugin Runtime with sandboxing and resource limits."""
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def __init__(self):
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self.engine = None
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self.active_instances = {}
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if wasmtime:
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self.engine = wasmtime.Engine()
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logger.info("WASM runtime initialized with wasmtime")
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else:
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logger.warning("WASM runtime not available - plugins will run in limited mode")
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async def load_plugin(self, plugin_id: str, metadata: PluginMetadata, wasm_binary: bytes, db_session) -> bool:
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"""Load and initialize a WASM plugin."""
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if not self.engine:
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logger.error("WASM engine not available")
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return False
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try:
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# Create resource monitor
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monitor = ResourceMonitor(metadata.resource_limits.dict())
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# Create host functions
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host_functions = PluginHostFunctions(plugin_id, metadata.permissions, db_session)
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# Create WASM store with resource limits
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store = wasmtime.Store(self.engine)
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# Set memory limits
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memory_pages = (metadata.resource_limits.memory_mb * 1024 * 1024) // (64 * 1024) # 64KB per page
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store.set_limits(memory_size=memory_pages * 64 * 1024)
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# Define host function imports
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def create_console_log():
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return wasmtime.Func(store, wasmtime.FuncType([wasmtime.ValType.i32(), wasmtime.ValType.i32()], []),
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host_functions.console_log)
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def create_console_error():
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return wasmtime.Func(store, wasmtime.FuncType([wasmtime.ValType.i32(), wasmtime.ValType.i32()], []),
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host_functions.console_error)
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def create_get_habits():
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return wasmtime.Func(store, wasmtime.FuncType([], [wasmtime.ValType.i32()]),
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host_functions.get_habits)
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def create_create_habit():
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return wasmtime.Func(store, wasmtime.FuncType([wasmtime.ValType.i32(), wasmtime.ValType.i32()], [wasmtime.ValType.i32()]),
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host_functions.create_habit)
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def create_register_dashboard_widget():
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return wasmtime.Func(store, wasmtime.FuncType([wasmtime.ValType.i32(), wasmtime.ValType.i32()], [wasmtime.ValType.i32()]),
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host_functions.register_dashboard_widget)
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# Create import object
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imports = {
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"env": {
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"console_log": create_console_log(),
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"console_error": create_console_error(),
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"get_habits": create_get_habits(),
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"create_habit": create_create_habit(),
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"register_dashboard_widget": create_register_dashboard_widget(),
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}
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}
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# Compile and instantiate the module
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module = wasmtime.Module(self.engine, wasm_binary)
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instance = wasmtime.Instance(store, module, imports)
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# Store the instance
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self.active_instances[plugin_id] = {
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'instance': instance,
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'store': store,
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'monitor': monitor,
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'host_functions': host_functions,
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'metadata': metadata
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}
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# Call the entry point
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entry_point = metadata.entry_point or 'initialize'
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if hasattr(instance.exports, entry_point):
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monitor.start_monitoring()
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# Execute with timeout
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def execute_entry_point():
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try:
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getattr(instance.exports, entry_point)(store)
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return True
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except Exception as e:
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logger.error(f"Error executing plugin entry point: {e}")
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return False
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# Run in thread with timeout
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result_queue = queue.Queue()
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thread = threading.Thread(target=lambda: result_queue.put(execute_entry_point()))
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thread.start()
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thread.join(timeout=metadata.resource_limits.cpu_limit == 'high' and 10.0 or 5.0)
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if thread.is_alive():
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logger.error(f"Plugin {plugin_id} entry point timed out")
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return False
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if not result_queue.empty():
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success = result_queue.get()
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if success:
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logger.info(f"Plugin {plugin_id} loaded successfully")
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return True
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else:
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logger.warning(f"Plugin {plugin_id} does not have entry point: {entry_point}")
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return True # Still consider it loaded
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except Exception as e:
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logger.error(f"Error loading plugin {plugin_id}: {e}")
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return False
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return False
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async def unload_plugin(self, plugin_id: str) -> bool:
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"""Unload a plugin and clean up resources."""
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if plugin_id in self.active_instances:
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try:
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instance_data = self.active_instances[plugin_id]
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# Call cleanup function if it exists
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instance = instance_data['instance']
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store = instance_data['store']
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if hasattr(instance.exports, 'cleanup'):
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instance.exports.cleanup(store)
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# Remove from active instances
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del self.active_instances[plugin_id]
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logger.info(f"Plugin {plugin_id} unloaded successfully")
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return True
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except Exception as e:
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logger.error(f"Error unloading plugin {plugin_id}: {e}")
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return False
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return True
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async def call_plugin_function(self, plugin_id: str, function_name: str, *args) -> Any:
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"""Call a function in a loaded plugin."""
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if plugin_id not in self.active_instances:
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logger.error(f"Plugin {plugin_id} is not loaded")
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return None
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try:
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instance_data = self.active_instances[plugin_id]
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instance = instance_data['instance']
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store = instance_data['store']
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monitor = instance_data['monitor']
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if not hasattr(instance.exports, function_name):
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logger.error(f"Plugin {plugin_id} does not have function: {function_name}")
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return None
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# Check resource limits before execution
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if not monitor.check_limits():
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logger.error(f"Plugin {plugin_id} has exceeded resource limits")
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return None
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# Execute function
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func = getattr(instance.exports, function_name)
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result = func(store, *args)
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return result
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except Exception as e:
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logger.error(f"Error calling plugin function {plugin_id}.{function_name}: {e}")
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return None
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def get_extension_points(self, plugin_id: str) -> Dict[str, List[Any]]:
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"""Get extension points registered by a plugin."""
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if plugin_id in self.active_instances:
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return self.active_instances[plugin_id]['host_functions'].extension_points
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return {}
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def get_all_extension_points(self) -> Dict[str, List[Any]]:
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"""Get all extension points from all loaded plugins."""
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all_extensions = {}
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for plugin_id, instance_data in self.active_instances.items():
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extensions = instance_data['host_functions'].extension_points
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for ext_point, items in extensions.items():
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if ext_point not in all_extensions:
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all_extensions[ext_point] = []
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all_extensions[ext_point].extend(items)
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return all_extensions
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# Global runtime instance
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plugin_runtime = WasmPluginRuntime()
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async def get_plugin_runtime() -> WasmPluginRuntime:
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"""Get the global plugin runtime instance."""
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return plugin_runtime
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