added file handler testing file

src/logic/file_handler.py

@@ -0,0 +1,58 @@
+from flask_definitions import *
+import time
+import uuid
+import os
+import json
+
+
+class FileHandler:
+    def __init__(self):
+        self.file_path = "/app/tmp/uploads/"
+        self.metadata_file = "metadata.json"
+        self.metadata_file_path = f"{self.file_path}{self.metadata_file}"
+        self.metadata = {}
+
+    def setup(self):
+        if not os.path.exists(self.file_path):
+            os.makedirs(self.file_path)
+            logger.graylog_logger(level="info", handler="file_handler", message=f"File Path: {self.file_path} created.")
+        if not os.path.exists(self.metadata_file_path):
+            with open(self.metadata_file_path, "w") as metadata_file:
+                metadata_file.write("{}")
+            logger.graylog_logger(level="info", handler="file_handler",
+                                  message=f"Metadata File: {self.metadata_file_path} created.")
+        with open(self.metadata_file_path, "r") as metadata_file:
+            self.metadata = json.load(metadata_file)
+            logger.graylog_logger(level="info", handler="file_handler", message=f"Metadata Loaded: {self.metadata}")
+    def save_metadata(self):
+        with open(self.metadata_file_path, "w") as metadata_file:
+            json.dump(self.metadata, metadata_file)
+
+    def create_file(self, file, user_id):
+        file_id = str(uuid.uuid4())
+        file.save(f"{self.file_path}{file_id}")
+        sha256 = hash_handler.get_256_sum(f"{self.file_path}{file_id}")
+        self.metadata[file_id] = {"file_id": file_id, "user_id": user_id, "sha256": sha256, "created": time.time()}
+        logger.graylog_logger(level="info",
+                              handler="file_handler",
+                              message=f"File: {file_id} created by User: {user_id} with SHA256: {sha256}")
+        self.save_metadata()
+        return file_id
+
+    def get_file(self, file_id):
+        if file_id not in self.metadata:
+            return None
+        return send_from_directory(self.file_path, file_id)
+
+    def get_file_sha256(self, file_id):
+        if file_id not in self.metadata:
+            return None
+        return self.metadata[file_id]["sha256"]
+
+    def get_metadata(self, file_id):
+        if file_id not in self.metadata:
+            return None
+        return self.metadata[file_id]
+
+
+file_handler = FileHandler()