Saturn 2 500 error Mariner fails to show layer progress

[raz0rf0x]

Description
File analysis of encrypted .ctb fails to "get end byte offset by layer" and printing status fails to show layer progress. API returns 500 and log as shown below. Problem is probably in /mariner/file_formats/ctb_encrypted.py at LayersPointer or LayersDefinition.

Reproduction Steps
Steps to reproduce the behavior:

• Print an encrypted .ctb file.

Expected Behavior

• To show status by layer. To retrieve list of end bytes from .ctb when loading.

Screenshots / Logs
ERROR:waitress:Exception while serving /api/print_status Traceback (most recent call last): File "/opt/venvs/mariner3d/lib/python3.9/site-packages/waitress/channel.py", line 428, in service task.service() File "/opt/venvs/mariner3d/lib/python3.9/site-packages/waitress/task.py", line 168, in service self.execute() File "/opt/venvs/mariner3d/lib/python3.9/site-packages/waitress/task.py", line 434, in execute app_iter = self.channel.server.application(environ, start_response) File "/opt/venvs/mariner3d/lib/python3.9/site-packages/flask/app.py", line 2548, in __call__ return self.wsgi_app(environ, start_response) File "/opt/venvs/mariner3d/lib/python3.9/site-packages/whitenoise/base.py", line 85, in __call__ return self.application(environ, start_response) File "/opt/venvs/mariner3d/lib/python3.9/site-packages/flask/app.py", line 2528, in wsgi_app response = self.handle_exception(e) File "/opt/venvs/mariner3d/lib/python3.9/site-packages/flask/app.py", line 2525, in wsgi_app response = self.full_dispatch_request() File "/opt/venvs/mariner3d/lib/python3.9/site-packages/flask/app.py", line 1822, in full_dispatch_request rv = self.handle_user_exception(e) File "/opt/venvs/mariner3d/lib/python3.9/site-packages/flask/app.py", line 1820, in full_dispatch_request rv = self.dispatch_request() File "/opt/venvs/mariner3d/lib/python3.9/site-packages/flask/app.py", line 1796, in dispatch_request return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args) File "/opt/venvs/mariner3d/lib/python3.9/site-packages/mariner/server/api.py", line 81, in print_status sliced_model_file.end_byte_offset_by_layer.index( ValueError: 2595054 is not in list

Details:

• Mariner Version: 0.4.0
• Printer Model: Elegoo Saturn 2
• Printer Firmware: 4.5.0
• Raspberry Pi Model: RPi Zero W

[raz0rf0x]

'LayersDefinition' is returning data with 'encrypted_data_offset' and 'encrypted_data_length' always zero:

CTBEncryptedLayerDef(table_size=88, position_z=0.03999999910593033, exposure_time=25.0, light_off_delay=0.0, layer_def_offset=169552, unknown_02=0, data_length=16213, unknown_03=0, encrypted_data_offset=0, encrypted_data_length=0, lift_height=7.0, lift_speed=65.0, lift_height2=3.0, lift_speed2=180.0, retract_speed=180.0, retract_height2=4.0, retract_speed2=65.0, rest_time_before_lift=0.0, rest_time_after_lift=0.0, rest_time_after_retract=1.0, light_pwm=255.0, unknown_06=0)