Update app.py

app.py

@@ -27,11 +27,16 @@ import json
 import csv
 from datetime import datetime
 import io
+import secrets
+import traceback
 
 from dotenv import load_dotenv
 
 load_dotenv()
 
+current_analysis_data = {}
+
+
 
 #===========================================================================
 # Clear the /tmp directory on startup 
@@ -138,10 +143,16 @@ tesseract_path = os.getenv("TESSERACT_PATH", r"C:\Program Files\Tesseract-OCR\te
 pytesseract.pytesseract.tesseract_cmd = tesseract_path
 
 app = Flask(__name__)
-app.config['SECRET_KEY'] = 'secret-key'
+app.config['SECRET_KEY'] = os.getenv('SECRET_KEY', secrets.token_hex(32))
 app.config['UPLOAD_FOLDER'] = 'uploads'
 app.config['MAX_CONTENT_LENGTH'] = 16 * 1024 * 1024  # 16MB max file size
 
+# Session configuration for production
+app.config['SESSION_COOKIE_SECURE'] = True  # Set to True if using HTTPS
+app.config['SESSION_COOKIE_HTTPONLY'] = True
+app.config['SESSION_COOKIE_SAMESITE'] = 'Lax'
+app.config['PERMANENT_SESSION_LIFETIME'] = 3600  # 1 hour
+
 
 os.makedirs(app.config['UPLOAD_FOLDER'], exist_ok=True)
 
@@ -699,6 +710,11 @@ def export_csv():
         
         # Option 2: From global variable (if you stored it there)
         # transformed_data = current_analysis_results
+
+        if not transformed_data:
+            print("Session data not found, using global variable")
+            global current_analysis_data
+            transformed_data = current_analysis_data
         
         if not transformed_data:
             return jsonify({'error': 'No analysis data available'}), 400
@@ -793,7 +809,8 @@ def export_csv():
         
     except Exception as e:
         print(f"Error exporting CSV: {e}")
-        return jsonify({'error': str(e)}), 500
+        traceback.print_exc()
+        return jsonify({'error': f'Export failed: {str(e)}'), 500
 
 #======================================================================================================================
 @app.route('/')