Fix all paths to be absolute based on __file__ to work regardless of working directory

- Make RESULTS_DIR, SESSION_FILE_DIR, uploads absolute
- Add error handling around file saving with detailed logging
- Add /test route to check write permissions
- Ensure app works on remote with correct paths and permissions

app.py

@@ -33,14 +33,14 @@ app.config['MAX_CONTENT_LENGTH'] = 1000 * 1024 * 1024 * 1024  # 1000TB
 
 # Configure server-side sessions to avoid cookie size limits
 app.config['SESSION_TYPE'] = 'filesystem'
-app.config['SESSION_FILE_DIR'] = 'sessions'
+app.config['SESSION_FILE_DIR'] = os.path.abspath(os.path.join(os.path.dirname(__file__), 'sessions'))
 app.config['SESSION_PERMANENT'] = False
 
 # Ensure session directory exists and is writable
 os.makedirs('sessions', exist_ok=True)
 
 # Ensure uploads directory exists
-os.makedirs('uploads', exist_ok=True)
+os.makedirs(os.path.abspath(os.path.join(os.path.dirname(__file__), 'uploads')), exist_ok=True)
 
 try:
     Session(app)
@@ -270,7 +270,7 @@ def logout():
 
 # Job storage
 JOBS_FILE = os.path.abspath(os.path.join(os.path.dirname(__file__), 'jobs.json'))
-RESULTS_DIR = os.path.abspath('results')
+RESULTS_DIR = os.path.abspath(os.path.join(os.path.dirname(__file__), 'results'))
 os.makedirs(RESULTS_DIR, exist_ok=True)
 
 processing_complete = False
@@ -350,9 +350,9 @@ def save_jobs(jobs):
         print(f"Error saving jobs: {e}")
 
 @app.route('/', methods=['GET', 'POST'])
-# @login_required  # Temporarily disabled for debugging
+@login_required
 def index():
-    print(f"DEBUG: index() called WITHOUT login_required")
+    print(f"DEBUG: index() called with method={request.method}")
     global processing_complete, current_output_dir
     if request.method == 'POST':
         print(f"POST request received at {datetime.now()}")
@@ -369,13 +369,14 @@ def index():
         job_id = job_start_time.strftime('%Y%m%d_%H%M%S')
         
         # Create dirs
-        input_dir = os.path.join('uploads', job_id)
+        input_dir = os.path.join(os.path.dirname(__file__), 'uploads', job_id)
         os.makedirs(input_dir, exist_ok=True)
         output_dir = tempfile.mkdtemp()
         current_output_dir = output_dir
         
         for file in files:
             if file and file.filename:
+                try:
                     filename = secure_filename(file.filename)
                     if filename.endswith('.zip'):
                         # Extract zip
@@ -387,13 +388,18 @@ def index():
                         shutil.rmtree(zip_temp)
                         print(f"Extracted ZIP: {filename}")
                     elif filename.endswith('.pdf'):
-                    file.save(os.path.join(input_dir, filename))
-                    print(f"Saved PDF: {filename}")
-                # For folder upload, files are saved with secure_filename, but since webkitdirectory, filename includes path, but secure_filename flattens it
+                        file_path = os.path.join(input_dir, filename)
+                        file.save(file_path)
+                        print(f"Saved PDF: {filename} to {file_path}")
                     else:
                         # Assume folder upload
-                    file.save(os.path.join(input_dir, filename))
-                    print(f"Saved file from folder: {filename}")
+                        file_path = os.path.join(input_dir, filename)
+                        file.save(file_path)
+                        print(f"Saved file from folder: {filename} to {file_path}")
+                except Exception as e:
+                    print(f"Error saving file {file.filename}: {e}")
+                    flash(f'Error saving file {file.filename}: {e}')
+                    return redirect(request.url)
         
         # Create job immediately
         jobs = load_jobs()
@@ -419,8 +425,15 @@ def index():
     
     return render_template('index.html', user_info=get_user_info())
 
-@app.route('/status')
-def status():
+@app.route('/test')
+def test():
+    try:
+        test_file = os.path.join(os.path.dirname(__file__), 'uploads', 'test.txt')
+        with open(test_file, 'w') as f:
+            f.write('test')
+        return f'Test file created at {test_file}'
+    except Exception as e:
+        return f'Error: {e}'
     print("Status requested")
     try:
         with open('status.txt', 'r') as f: