Work increment

network/communication.py

@@ -1,8 +1,18 @@
+from http.client import NON_AUTHORITATIVE_INFORMATION
 from flask import Flask
+from utils.config import ServerConfig
+import sqlite3
 
+class Server():
 
-class Server(host, port, name, access_password, version):
+    def __init__(self, host, port, name, access_password, version, database_file):
-    app = Flask(self.name)
+        self.app = Flask(self.name)
+        self.host = host
+        self.port = port
+        self.name = name
+        self.access_password = access_password
+        self.version = version
+        self.client_database = sqlite3.connect(database_file)
 
     @app.route("/")
     def basic_server_data(self):
@@ -10,5 +20,5 @@ class Server(host, port, name, access_password, version):
 
     @app.route("/client/register")
     def register_new_client_to_database(self):
-
         # TODO: implement
+        pass

utils/config/config.py

@@ -2,6 +2,7 @@ import os
 import yaml
 
 class ServerConfig:    
+    def __init__(self):
         config_file = {}
 
         with open("~/.config/orchestrator/config.yml", "r") as stream:
@@ -14,3 +15,18 @@ class ServerConfig:
 
         server_name_override = os.environ.get("VALHALLA_SERVER_NAME")
         server_port_override = os.environ.get("VALHALLA_SERVER_PORT")
+        database_file_override = os.environ.get("VALHALLA_DATABASE_FILE")
+
+        if server_name_override:
+            config["server_name"] = server_name_override
+    
+        if server_port_override:
+            config["server_port"] = server_port_override
+        
+        if database_file_override:
+            config["database_file"] = database_file_override
+
+        self.server_name = config["server_name"]
+        self.server_port = config["server_port"]
+        self.database_file = config["database_file"]
+        

utils/database/database.py

@@ -1 +1,27 @@
-from simplesqlite import SimpleSQLite
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+from utils.models import Client, VMImage
+class Database:
+    def __init__(self, database_file: str):
+        try:
+            # Connect to the database using SQLAlchemy
+            engine = create_engine(f"sqlite:///{database_file}")
+            Session = sessionmaker()
+            Session.configure(bind=engine)
+            self.session = Session()
+        except Exception as ex:
+            print(ex)
+            exit(-1)
+    
+    def get_clients(self) -> list(Client):
+        result = None
+        try:
+            result = self.session.query(Client).all()
+        except Exception as ex:
+            print(f"Error getting list of clients from database: {ex}")
+            result = None
+        return result
+    
+    def get_client_by_mac_address(mac_address: str) -> Client:
+        result = None
+        

utils/exceptions/DatabaseException.py

@@ -0,0 +1,2 @@
+class DatabaseException(Exception):
+    

utils/models/__init__.py

@@ -0,0 +1 @@
+from utils.models import Client, VMImage

utils/models/models.py

@@ -0,0 +1,43 @@
+from sqlalchemy import Column, Integer, String, ForeignKey, Table
+from sqlalchemy.orm import relationship, backref
+from sqlalchemy.ext.declarative import declarative_base
+
+Base = declarative_base()
+
+client_image_table = Table(
+    "client_image",
+    Base.metadata,
+    Column("client_mac", String, ForeignKey("clients.mac_address")),
+    Column("image_id", Integer, ForeignKey("vm_images.image_id"))
+)
+
+class Client(Base):
+    __tablename__ = "clients"
+    mac_address = Column(String, primary_key=True)
+    ip_address = Column(String)
+    hostname = Column(String)
+    client_version = Column(String)
+    vm_list_on_machine = relationship(
+        "VMImages",
+        secondary = client_image_table,
+        back_populates = "vm_images"
+    )
+    
+    def has_vm_installed(self, vm_object):
+        for vm in self.vm_list_on_machine:
+            if vm.image_hash == vm_object.image_hash:
+                return True
+        return False
+
+class VMImage(Base):
+    __tablename__ = "vm_images"
+    image_id = Column(Integer, primary_key=True)
+    image_name = Column(String)
+    image_file = Column(String)
+    image_version = Column(String)
+    image_hash = Column(String)
+    clients = relationship(
+        "Clients",
+        secondary = client_image_table,
+        back_populates = "clients"
+    )