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import os
import shutil
import json
import tarfile
from datetime import datetime
from typing import Dict, Any, List
from bson import ObjectId
from ..db.database import db
from ..utils.logger import logger
class BackupService:
def __init__(self):
self.backup_dir = "backups"
self._ensure_backup_dir()
def _ensure_backup_dir(self):
"""Ensure backup directory exists"""
if not os.path.exists(self.backup_dir):
os.makedirs(self.backup_dir)
async def create_backup(self, include_files: bool = True) -> Dict[str, Any]:
"""Create a new system backup"""
try:
timestamp = datetime.utcnow().strftime("%Y%m%d_%H%M%S")
backup_id = str(ObjectId())
backup_name = f"backup_{timestamp}_{backup_id}"
backup_path = os.path.join(self.backup_dir, backup_name)
# Create backup directory
os.makedirs(backup_path, exist_ok=True)
# Backup database collections
db_backup = {}
for collection in await db.db.list_collection_names():
docs = await db.db[collection].find().to_list(None)
db_backup[collection] = [
{**doc, "_id": str(doc["_id"])}
for doc in docs
]
# Save database backup
with open(os.path.join(backup_path, "database.json"), "w") as f:
json.dump(db_backup, f, default=str)
# Backup files if requested
if include_files:
uploads_dir = "uploads"
if os.path.exists(uploads_dir):
shutil.copytree(
uploads_dir,
os.path.join(backup_path, "uploads"),
dirs_exist_ok=True
)
# Create archive
archive_path = f"{backup_path}.tar.gz"
with tarfile.open(archive_path, "w:gz") as tar:
tar.add(backup_path, arcname=os.path.basename(backup_path))
# Clean up temporary directory
shutil.rmtree(backup_path)
# Record backup in database
backup_info = {
"_id": backup_id,
"filename": f"{backup_name}.tar.gz",
"path": archive_path,
"created_at": datetime.utcnow(),
"size": os.path.getsize(archive_path),
"includes_files": include_files
}
await db.db["backup_history"].insert_one(backup_info)
return {
"id": backup_id,
"path": archive_path,
"size": backup_info["size"],
"created_at": backup_info["created_at"]
}
except Exception as e:
logger.error(f"Backup creation failed: {str(e)}")
raise
async def restore_backup(self, backup_path: str) -> Dict[str, Any]:
"""Restore system from a backup"""
try:
if not os.path.exists(backup_path):
raise FileNotFoundError("Backup file not found")
# Create temporary restoration directory
restore_dir = f"restore_{datetime.utcnow().strftime('%Y%m%d_%H%M%S')}"
os.makedirs(restore_dir, exist_ok=True)
# Extract archive
with tarfile.open(backup_path, "r:gz") as tar:
tar.extractall(restore_dir)
backup_contents = os.listdir(restore_dir)[0]
backup_root = os.path.join(restore_dir, backup_contents)
# Restore database
with open(os.path.join(backup_root, "database.json"), "r") as f:
db_backup = json.load(f)
# Clear existing collections
for collection in await db.db.list_collection_names():
await db.db[collection].delete_many({})
# Restore collections
for collection, docs in db_backup.items():
if docs:
# Convert string IDs back to ObjectId
for doc in docs:
doc["_id"] = ObjectId(doc["_id"])
await db.db[collection].insert_many(docs)
# Restore files if present
uploads_source = os.path.join(backup_root, "uploads")
if os.path.exists(uploads_source):
if os.path.exists("uploads"):
shutil.rmtree("uploads")
shutil.copytree(uploads_source, "uploads")
# Clean up
shutil.rmtree(restore_dir)
return {
"success": True,
"collections_restored": len(db_backup),
"files_restored": os.path.exists(uploads_source)
}
except Exception as e:
logger.error(f"Backup restoration failed: {str(e)}")
raise
finally:
if os.path.exists(restore_dir):
shutil.rmtree(restore_dir)
async def list_backups(self) -> List[Dict[str, Any]]:
"""List all available backups"""
try:
backups = await db.db["backup_history"].find().sort("created_at", -1).to_list(None)
return [
{
"id": str(backup["_id"]),
"filename": backup["filename"],
"created_at": backup["created_at"],
"size": backup["size"],
"includes_files": backup["includes_files"]
}
for backup in backups
]
except Exception as e:
logger.error(f"Failed to list backups: {str(e)}")
raise
async def delete_backup(self, backup_id: str) -> bool:
"""Delete a backup"""
try:
backup = await db.db["backup_history"].find_one({"_id": backup_id})
if not backup:
return False
# Delete the physical backup file
if os.path.exists(backup["path"]):
os.remove(backup["path"])
# Remove from database
await db.db["backup_history"].delete_one({"_id": backup_id})
return True
except Exception as e:
logger.error(f"Failed to delete backup: {str(e)}")
raise
backup = BackupService() |