Create file_handler.py

utils/file_handler.py

@@ -0,0 +1,62 @@
+"""
+File handling utilities for SkillSync
+"""
+
+import os
+import shutil
+from datetime import datetime
+
+class FileHandler:
+    """Handles file operations for submissions"""
+    
+    def __init__(self, upload_dir="data/user_data/submissions", max_size_mb=100):
+        self.upload_dir = upload_dir
+        self.max_size = max_size_mb * 1024 * 1024
+        self.allowed_extensions = [".zip", ".pdf", ".ipynb", ".py", ".txt", ".md"]
+    
+    def ensure_upload_dir(self):
+        """Ensure upload directory exists"""
+        os.makedirs(self.upload_dir, exist_ok=True)
+    
+    def validate_file(self, file):
+        """Validate uploaded file"""
+        if file is None:
+            return False, "No file provided"
+        
+        file_name = getattr(file, 'name', 'unknown')
+        file_ext = os.path.splitext(file_name)[1].lower()
+        
+        if file_ext not in self.allowed_extensions:
+            return False, f"File type {file_ext} not allowed"
+        
+        return True, "File validated successfully"
+    
+    def save_file(self, file, user_id, assignment_type):
+        """Save uploaded file"""
+        try:
+            self.ensure_upload_dir()
+            original_name = getattr(file, 'name', 'uploaded_file')
+            original_name = os.path.basename(original_name)
+            timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
+            new_name = f"{user_id}_{assignment_type}_{timestamp}_{original_name}"
+            destination = os.path.join(self.upload_dir, new_name)
+            
+            if hasattr(file, 'name'):
+                shutil.copy2(file.name, destination)
+            
+            return True, destination
+        except Exception as e:
+            return False, str(e)
+    
+    def get_file_info(self, filepath):
+        """Get information about a file"""
+        if not os.path.exists(filepath):
+            return None
+        
+        stat = os.stat(filepath)
+        return {
+            "path": filepath,
+            "size": stat.st_size,
+            "created": datetime.fromtimestamp(stat.st_ctime).strftime("%Y-%m-%d %H:%M:%S"),
+            "modified": datetime.fromtimestamp(stat.st_mtime).strftime("%Y-%m-%d %H:%M:%S")
+        }