774 lines
32 KiB
Python
774 lines
32 KiB
Python
# Enhanced gcode file management and analysis
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#
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# Copyright (C) 2020 Eric Callahan <arksine.code@gmail.com>
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#
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# This file may be distributed under the terms of the GNU GPLv3 license.
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import os
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import sys
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import shutil
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import zipfile
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import logging
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import json
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import tempfile
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from concurrent.futures import ThreadPoolExecutor
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from tornado.ioloop import IOLoop, PeriodicCallback
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from tornado.locks import Event
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VALID_GCODE_EXTS = ['.gcode', '.g', '.gco', '.ufp', '.nc']
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FULL_ACCESS_ROOTS = ["gcodes", "config"]
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METADATA_SCRIPT = os.path.abspath(os.path.join(
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os.path.dirname(__file__), "../../scripts/extract_metadata.py"))
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UFP_MODEL_PATH = "/3D/model.gcode"
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UFP_THUMB_PATH = "/Metadata/thumbnail.png"
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class FileManager:
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def __init__(self, config):
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self.server = config.get_server()
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self.file_paths = {}
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database = self.server.load_component(config, "database")
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gc_path = database.get_item("moonraker", "file_manager.gcode_path", "")
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self.gcode_metadata = MetadataStorage(self.server, gc_path, database)
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self.fixed_path_args = {}
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# Register file management endpoints
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self.server.register_endpoint(
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"/server/files/list", ['GET'], self._handle_filelist_request)
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self.server.register_endpoint(
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"/server/files/metadata", ['GET'], self._handle_metadata_request)
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self.server.register_endpoint(
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"/server/files/directory", ['GET', 'POST', 'DELETE'],
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self._handle_directory_request)
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self.server.register_endpoint(
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"/server/files/move", ['POST'], self._handle_file_move_copy)
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self.server.register_endpoint(
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"/server/files/copy", ['POST'], self._handle_file_move_copy)
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self.server.register_endpoint(
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"/server/files/delete_file", ['DELETE'], self._handle_file_delete,
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protocol=["websocket"])
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# register client notificaitons
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self.server.register_notification("file_manager:filelist_changed")
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self.server.register_notification("file_manager:metadata_update")
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# Register APIs to handle file uploads
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self.server.register_upload_handler("/server/files/upload")
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self.server.register_upload_handler("/api/files/local")
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self.server.register_event_handler(
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"server:klippy_identified", self._update_fixed_paths)
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# Register Klippy Configuration Path
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config_path = config.get('config_path', None)
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if config_path is not None:
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ret = self.register_directory('config', config_path)
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if not ret:
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raise config.error(
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"Option 'config_path' is not a valid directory")
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# If gcode path is in the database, register it
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if gc_path:
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self.register_directory('gcodes', gc_path)
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def _update_fixed_paths(self):
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kinfo = self.server.get_klippy_info()
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paths = {k: kinfo.get(k) for k in
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['klipper_path', 'python_path',
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'log_file', 'config_file']}
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if paths == self.fixed_path_args:
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# No change in fixed paths
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return
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self.fixed_path_args = paths
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str_paths = "\n".join([f"{k}: {v}" for k, v in paths.items()])
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logging.debug(f"\nUpdating Fixed Paths:\n{str_paths}")
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# Register path for example configs
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klipper_path = paths.get('klipper_path', None)
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if klipper_path is not None:
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example_cfg_path = os.path.join(klipper_path, "config")
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self.register_directory("config_examples", example_cfg_path)
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docs_path = os.path.join(klipper_path, "docs")
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self.register_directory("docs", docs_path)
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# Register log path
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log_file = paths.get('log_file')
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if log_file is not None:
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log_path = os.path.abspath(os.path.expanduser(log_file))
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self.server.register_static_file_handler(
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"klippy.log", log_path, force=True)
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def register_directory(self, root, path):
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if path is None:
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return False
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path = os.path.abspath(os.path.expanduser(path))
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if os.path.islink(path):
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path = os.path.realpath(path)
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if not os.path.isdir(path) or path == "/":
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logging.info(
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f"\nSupplied path ({path}) for ({root}) a valid. Make sure\n"
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"that the path exists and is not the file system root.")
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return False
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permissions = os.R_OK
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if root in FULL_ACCESS_ROOTS:
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permissions |= os.W_OK
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if not os.access(path, permissions):
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logging.info(
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f"\nMoonraker does not have permission to access path "
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f"({path}) for ({root}).")
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return False
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if path != self.file_paths.get(root, ""):
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self.file_paths[root] = path
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self.server.register_static_file_handler(root, path)
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if root == "gcodes":
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database = self.server.lookup_component(
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"database").wrap_namespace("moonraker")
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database["file_manager.gcode_path"] = path
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# scan for metadata changes
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self.gcode_metadata.update_gcode_path(path)
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try:
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self.get_file_list("gcodes")
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except Exception:
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logging.exception(
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f"Unable to initialize gcode metadata")
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return True
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def get_sd_directory(self):
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return self.file_paths.get('gcodes', "")
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def get_registered_dirs(self):
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return list(self.file_paths.keys())
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def get_fixed_path_args(self):
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return dict(self.fixed_path_args)
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def check_file_exists(self, root, filename):
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root_dir = self.file_paths.get(root, "")
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file_path = os.path.join(root_dir, filename)
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return os.path.exists(file_path)
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async def _handle_filelist_request(self, web_request):
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root = web_request.get_str('root', "gcodes")
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return self.get_file_list(root, list_format=True, notify=True)
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async def _handle_metadata_request(self, web_request):
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requested_file = web_request.get_str('filename')
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metadata = self.gcode_metadata.get(requested_file, None)
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if metadata is None:
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raise self.server.error(
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f"Metadata not available for <{requested_file}>", 404)
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metadata['filename'] = requested_file
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return metadata
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async def _handle_directory_request(self, web_request):
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directory = web_request.get_str('path', "gcodes")
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root, rel_path, dir_path = self._convert_path(directory)
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action = web_request.get_action()
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if action == 'GET':
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is_extended = web_request.get_boolean('extended', False)
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# Get list of files and subdirectories for this target
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dir_info = self._list_directory(dir_path, is_extended)
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return dir_info
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elif action == 'POST' and root in FULL_ACCESS_ROOTS:
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# Create a new directory
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try:
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os.mkdir(dir_path)
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except Exception as e:
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raise self.server.error(str(e))
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self.notify_filelist_changed("create_dir", rel_path, root)
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elif action == 'DELETE' and root in FULL_ACCESS_ROOTS:
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# Remove a directory
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if directory.strip("/") == root:
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raise self.server.error(
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"Cannot delete root directory")
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if not os.path.isdir(dir_path):
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raise self.server.error(
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f"Directory does not exist ({directory})")
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force = web_request.get_boolean('force', False)
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if force:
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# Make sure that the directory does not contain a file
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# loaded by the virtual_sdcard
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await self._handle_operation_check(dir_path)
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shutil.rmtree(dir_path)
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if root == "gcodes":
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self.gcode_metadata.prune_metadata()
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else:
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try:
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os.rmdir(dir_path)
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except Exception as e:
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raise self.server.error(str(e))
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self.notify_filelist_changed("delete_dir", rel_path, root)
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else:
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raise self.server.error("Operation Not Supported", 405)
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return "ok"
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async def _handle_operation_check(self, requested_path):
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# Get virtual_sdcard status
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klippy_apis = self.server.lookup_component('klippy_apis')
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result = await klippy_apis.query_objects({'print_stats': None})
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pstats = result.get('print_stats', {})
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loaded_file = pstats.get('filename', "")
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state = pstats.get('state', "")
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gc_path = self.file_paths.get('gcodes', "")
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full_path = os.path.join(gc_path, loaded_file)
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if loaded_file and state != "complete":
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if os.path.isdir(requested_path):
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# Check to see of the loaded file is in the request
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if full_path.startswith(requested_path):
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raise self.server.error("File currently in use", 403)
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elif full_path == requested_path:
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raise self.server.error("File currently in use", 403)
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ongoing = state in ["printing", "paused"]
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return ongoing
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def _convert_path(self, request_path):
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# Parse the root, relative path, and disk path from a remote request
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parts = request_path.strip("/").split("/")
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if not parts:
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raise self.server.error(f"Invalid path: {request_path}")
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root = parts[0]
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if root not in self.file_paths:
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raise self.server.error(f"Invalid root path ({root})")
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disk_path = self.file_paths[root]
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rel_path = ""
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if len(parts) > 1:
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rel_path = "/".join(parts[1:])
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disk_path = os.path.join(disk_path, rel_path)
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return root, rel_path, disk_path
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async def _handle_file_move_copy(self, web_request):
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source = web_request.get_str("source")
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destination = web_request.get_str("dest")
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ep = web_request.get_endpoint()
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if source is None:
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raise self.server.error("File move/copy request issing source")
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if destination is None:
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raise self.server.error(
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"File move/copy request missing destination")
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source_root, src_rel_path, source_path = self._convert_path(source)
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dest_root, dst_rel_path, dest_path = self._convert_path(destination)
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if dest_root not in FULL_ACCESS_ROOTS:
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raise self.server.error(
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f"Destination path is read-only: {dest_root}")
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if not os.path.exists(source_path):
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raise self.server.error(f"File {source_path} does not exist")
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# make sure the destination is not in use
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if os.path.exists(dest_path):
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await self._handle_operation_check(dest_path)
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action = op_result = ""
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if ep == "/server/files/move":
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if source_root not in FULL_ACCESS_ROOTS:
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raise self.server.error(
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f"Source path is read-only, cannot move: {source_root}")
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# if moving the file, make sure the source is not in use
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await self._handle_operation_check(source_path)
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try:
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op_result = shutil.move(source_path, dest_path)
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except Exception as e:
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raise self.server.error(str(e))
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if source_root == "gcodes":
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if os.path.isdir(op_result):
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self.gcode_metadata.prune_metadata()
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else:
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self.gcode_metadata.remove_file(src_rel_path)
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action = "move_item"
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elif ep == "/server/files/copy":
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try:
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if os.path.isdir(source_path):
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op_result = shutil.copytree(source_path, dest_path)
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else:
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op_result = shutil.copy2(source_path, dest_path)
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except Exception as e:
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raise self.server.error(str(e))
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action = "copy_item"
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if op_result != dest_path:
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dst_rel_path = os.path.join(
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dst_rel_path, os.path.basename(op_result))
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self.notify_filelist_changed(
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action, dst_rel_path, dest_root,
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{'path': src_rel_path, 'root': source_root})
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return "ok"
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def _list_directory(self, path, is_extended=False):
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if not os.path.isdir(path):
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raise self.server.error(
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f"Directory does not exist ({path})")
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flist = {'dirs': [], 'files': []}
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for fname in os.listdir(path):
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full_path = os.path.join(path, fname)
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if not os.path.exists(full_path):
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continue
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path_info = self._get_path_info(full_path)
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if os.path.isdir(full_path):
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path_info['dirname'] = fname
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flist['dirs'].append(path_info)
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elif os.path.isfile(full_path):
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path_info['filename'] = fname
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# Check to see if a filelist update is necessary
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ext = os.path.splitext(fname)[-1].lower()
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gc_path = self.file_paths.get('gcodes', None)
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if gc_path is not None and full_path.startswith(gc_path) and \
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ext in VALID_GCODE_EXTS:
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if ext == ".ufp":
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try:
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full_path = self._process_ufp_from_refresh(
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full_path)
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except Exception:
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logging.exception("Error processing ufp file")
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continue
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path_info = self._get_path_info(full_path)
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path_info['filename'] = os.path.split(full_path)[-1]
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rel_path = os.path.relpath(full_path, start=gc_path)
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self.gcode_metadata.parse_metadata(
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rel_path, path_info['size'], path_info['modified'],
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notify=True)
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metadata = self.gcode_metadata.get(rel_path, None)
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if metadata is not None and is_extended:
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path_info.update(metadata)
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flist['files'].append(path_info)
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usage = shutil.disk_usage(path)
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flist['disk_usage'] = usage._asdict()
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return flist
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def _get_path_info(self, path):
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modified = os.path.getmtime(path)
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size = os.path.getsize(path)
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path_info = {'modified': modified, 'size': size}
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return path_info
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def gen_temp_upload_path(self):
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ioloop = IOLoop.current()
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return os.path.join(
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tempfile.gettempdir(),
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f"moonraker.upload-{int(ioloop.time())}.mru")
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async def finalize_upload(self, form_args):
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# lookup root file path
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try:
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upload_info = self._parse_upload_args(form_args)
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root = upload_info['root']
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if root == "gcodes":
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result = await self._finish_gcode_upload(upload_info)
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elif root in FULL_ACCESS_ROOTS:
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result = await self._finish_standard_upload(upload_info)
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else:
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raise self.server.error(f"Invalid root request: {root}")
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except Exception:
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try:
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os.remove(form_args['tmp_file_path'])
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except Exception:
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pass
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raise
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return result
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def _parse_upload_args(self, upload_args):
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if 'filename' not in upload_args:
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raise self.server.error(
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"No file name specifed in upload form")
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# check relative path
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root = upload_args.get('root', "gcodes").lower()
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if root not in self.file_paths:
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raise self.server.error(f"Root {root} not available")
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root_path = self.file_paths[root]
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dir_path = upload_args.get('path', "")
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if os.path.isfile(root_path):
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filename = os.path.basename(root_path)
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dest_path = root_path
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dir_path = ""
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else:
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filename = upload_args['filename'].strip().lstrip("/")
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if dir_path:
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filename = os.path.join(dir_path, filename)
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dest_path = os.path.abspath(os.path.join(root_path, filename))
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# Validate the path. Don't allow uploads to a parent of the root
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if not dest_path.startswith(root_path):
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raise self.server.error(
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f"Cannot write to path: {dest_path}")
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start_print = upload_args.get('print', "false") == "true"
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f_ext = os.path.splitext(dest_path)[-1].lower()
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unzip_ufp = f_ext == ".ufp" and root == "gcodes"
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if unzip_ufp:
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filename = os.path.splitext(filename)[0] + ".gcode"
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dest_path = os.path.splitext(dest_path)[0] + ".gcode"
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return {
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'root': root,
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'filename': filename,
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'dir_path': dir_path,
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'dest_path': dest_path,
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'tmp_file_path': upload_args['tmp_file_path'],
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'start_print': start_print,
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'unzip_ufp': unzip_ufp
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}
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async def _finish_gcode_upload(self, upload_info):
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print_ongoing = False
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start_print = upload_info['start_print']
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# Verify that the operation can be done if attempting to upload a gcode
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try:
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check_path = upload_info['dest_path']
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print_ongoing = await self._handle_operation_check(
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check_path)
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except self.server.error as e:
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if e.status_code == 403:
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raise self.server.error(
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"File is loaded, upload not permitted", 403)
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else:
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# Couldn't reach Klippy, so it should be safe
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# to permit the upload but not start
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start_print = False
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# Don't start if another print is currently in progress
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start_print = start_print and not print_ongoing
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ioloop = IOLoop.current()
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with ThreadPoolExecutor(max_workers=1) as tpe:
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await ioloop.run_in_executor(
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tpe, self._process_uploaded_file, upload_info)
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# Fetch Metadata
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finfo = self._get_path_info(upload_info['dest_path'])
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evt = self.gcode_metadata.parse_metadata(
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upload_info['filename'], finfo['size'], finfo['modified'])
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await evt.wait()
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if start_print:
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# Make a Klippy Request to "Start Print"
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klippy_apis = self.server.lookup_component('klippy_apis')
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try:
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await klippy_apis.start_print(upload_info['filename'])
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except self.server.error:
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# Attempt to start print failed
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start_print = False
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self.notify_filelist_changed(
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'upload_file', upload_info['filename'], "gcodes")
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return {
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'result': upload_info['filename'],
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'print_started': start_print
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}
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async def _finish_standard_upload(self, upload_info):
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ioloop = IOLoop.current()
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with ThreadPoolExecutor(max_workers=1) as tpe:
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await ioloop.run_in_executor(
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tpe, self._process_uploaded_file, upload_info)
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self.notify_filelist_changed(
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'upload_file', upload_info['filename'], upload_info['root'])
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return {'result': upload_info['filename']}
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def _process_uploaded_file(self, upload_info):
|
|
try:
|
|
if upload_info['dir_path']:
|
|
os.makedirs(os.path.dirname(
|
|
upload_info['dest_path']), exist_ok=True)
|
|
if upload_info['unzip_ufp']:
|
|
self._unzip_ufp(upload_info['tmp_file_path'],
|
|
upload_info['dest_path'])
|
|
else:
|
|
shutil.move(upload_info['tmp_file_path'],
|
|
upload_info['dest_path'])
|
|
except Exception:
|
|
logging.exception("Upload Write Error")
|
|
raise self.server.error("Unable to save file", 500)
|
|
|
|
# UFP Extraction Implementation inspired by GitHub user @cdkeito
|
|
def _unzip_ufp(self, ufp_path, dest_path):
|
|
thumb_name = os.path.splitext(
|
|
os.path.basename(dest_path))[0] + ".png"
|
|
dest_thumb_dir = os.path.join(os.path.dirname(dest_path), "thumbs")
|
|
dest_thumb_path = os.path.join(dest_thumb_dir, thumb_name)
|
|
try:
|
|
with tempfile.TemporaryDirectory() as tmp_dir_name:
|
|
tmp_thumb_path = ""
|
|
with zipfile.ZipFile(ufp_path) as zf:
|
|
tmp_model_path = zf.extract(
|
|
UFP_MODEL_PATH, path=tmp_dir_name)
|
|
if UFP_THUMB_PATH in zf.namelist():
|
|
tmp_thumb_path = zf.extract(
|
|
UFP_THUMB_PATH, path=tmp_dir_name)
|
|
shutil.move(tmp_model_path, dest_path)
|
|
if tmp_thumb_path:
|
|
if not os.path.exists(dest_thumb_dir):
|
|
os.mkdir(dest_thumb_dir)
|
|
shutil.move(tmp_thumb_path, dest_thumb_path)
|
|
finally:
|
|
try:
|
|
os.remove(ufp_path)
|
|
except Exception:
|
|
logging.exception(f"Error removing ufp file: {ufp_path}")
|
|
|
|
def _process_ufp_from_refresh(self, ufp_path):
|
|
dest_path = os.path.splitext(ufp_path)[0] + ".gcode"
|
|
self._unzip_ufp(ufp_path, dest_path)
|
|
return dest_path
|
|
|
|
def get_file_list(self, root, list_format=False, notify=False):
|
|
# Use os.walk find files in sd path and subdirs
|
|
filelist = {}
|
|
path = self.file_paths.get(root, None)
|
|
if path is None or not os.path.isdir(path):
|
|
msg = f"Failed to build file list, invalid path: {root}: {path}"
|
|
logging.info(msg)
|
|
raise self.server.error(msg)
|
|
logging.info(f"Updating File List <{root}>...")
|
|
st = os.stat(path)
|
|
visited_dirs = {(st.st_dev, st.st_ino)}
|
|
for dir_path, dir_names, files in os.walk(path, followlinks=True):
|
|
scan_dirs = []
|
|
# Filter out directories that have already been visted. This
|
|
# prevents infinite recrusion "followlinks" is set to True
|
|
for dname in dir_names:
|
|
full_path = os.path.join(dir_path, dname)
|
|
if not os.path.exists(full_path):
|
|
continue
|
|
st = os.stat(full_path)
|
|
key = (st.st_dev, st.st_ino)
|
|
if key not in visited_dirs:
|
|
visited_dirs.add(key)
|
|
scan_dirs.append(dname)
|
|
dir_names[:] = scan_dirs
|
|
for name in files:
|
|
ext = os.path.splitext(name)[-1].lower()
|
|
if root == 'gcodes' and ext not in VALID_GCODE_EXTS:
|
|
continue
|
|
full_path = os.path.join(dir_path, name)
|
|
if ext == ".ufp":
|
|
try:
|
|
full_path = self._process_ufp_from_refresh(full_path)
|
|
except Exception:
|
|
logging.exception("Error processing ufp file")
|
|
continue
|
|
if not os.path.exists(full_path):
|
|
continue
|
|
fname = full_path[len(path) + 1:]
|
|
finfo = self._get_path_info(full_path)
|
|
filelist[fname] = finfo
|
|
if root == 'gcodes':
|
|
self.gcode_metadata.parse_metadata(
|
|
fname, finfo['size'], finfo['modified'], notify)
|
|
if list_format:
|
|
flist = []
|
|
for fname in sorted(filelist, key=str.lower):
|
|
fdict = {'filename': fname}
|
|
fdict.update(filelist[fname])
|
|
flist.append(fdict)
|
|
return flist
|
|
return filelist
|
|
|
|
def get_file_metadata(self, filename):
|
|
if filename[0] == '/':
|
|
filename = filename[1:]
|
|
|
|
# Remove "gcodes" of its added. It is valid for a request to
|
|
# include to the root or assume the root is gcodes
|
|
if filename.startswith('gcodes/'):
|
|
filename = filename[7:]
|
|
|
|
return self.gcode_metadata.get(filename, {})
|
|
|
|
def list_dir(self, directory, simple_format=False):
|
|
# List a directory relative to its root.
|
|
if directory[0] == "/":
|
|
directory = directory[1:]
|
|
parts = directory.split("/", 1)
|
|
root = parts[0]
|
|
if root not in self.file_paths:
|
|
raise self.server.error(
|
|
f"Invalid Directory Request: {directory}")
|
|
path = self.file_paths[root]
|
|
if len(parts) == 1:
|
|
dir_path = path
|
|
else:
|
|
dir_path = os.path.join(path, parts[1])
|
|
if not os.path.isdir(dir_path):
|
|
raise self.server.error(
|
|
f"Directory does not exist ({dir_path})")
|
|
flist = self._list_directory(dir_path)
|
|
if simple_format:
|
|
simple_list = []
|
|
for dirobj in flist['dirs']:
|
|
simple_list.append("*" + dirobj['dirname'])
|
|
for fileobj in flist['files']:
|
|
fname = fileobj['filename']
|
|
ext = os.path.splitext(fname)[-1].lower()
|
|
if root == "gcodes" and ext in VALID_GCODE_EXTS:
|
|
simple_list.append(fname)
|
|
return simple_list
|
|
return flist
|
|
|
|
async def _handle_file_delete(self, web_request):
|
|
file_path = web_request.get_str("path")
|
|
return await self.delete_file(file_path)
|
|
|
|
async def delete_file(self, path):
|
|
parts = path.lstrip("/").split("/", 1)
|
|
if len(parts) != 2:
|
|
raise self.server.error(
|
|
f"Path not available for DELETE: {path}", 405)
|
|
root = parts[0]
|
|
filename = parts[1]
|
|
if root not in self.file_paths or root not in FULL_ACCESS_ROOTS:
|
|
raise self.server.error(
|
|
f"Path not available for DELETE: {path}", 405)
|
|
root_path = self.file_paths[root]
|
|
full_path = os.path.join(root_path, filename)
|
|
if not os.path.isfile(full_path):
|
|
raise self.server.error(f"Invalid file path: {path}")
|
|
if root == "gcodes":
|
|
try:
|
|
await self._handle_operation_check(full_path)
|
|
except self.server.error as e:
|
|
if e.status_code == 403:
|
|
raise
|
|
self.gcode_metadata.remove_file(filename)
|
|
os.remove(full_path)
|
|
self.notify_filelist_changed('delete_file', filename, root)
|
|
return filename
|
|
|
|
def notify_filelist_changed(self, action, fname, root, source_item={}):
|
|
flist = self.get_file_list(root, notify=True)
|
|
file_info = flist.get(fname, {'size': 0, 'modified': 0})
|
|
file_info.update({'path': fname, 'root': root})
|
|
result = {'action': action, 'item': file_info}
|
|
if source_item:
|
|
result.update({'source_item': source_item})
|
|
self.server.send_event("file_manager:filelist_changed", result)
|
|
|
|
def close(self):
|
|
self.gcode_metadata.close()
|
|
|
|
|
|
METADATA_PRUNE_TIME = 600000
|
|
METADATA_NAMESPACE = "gcode_metadata"
|
|
METADATA_VERSION = 3
|
|
|
|
class MetadataStorage:
|
|
def __init__(self, server, gc_path, database):
|
|
self.server = server
|
|
database.register_local_namespace(METADATA_NAMESPACE)
|
|
self.mddb = database.wrap_namespace(
|
|
METADATA_NAMESPACE, parse_keys=False)
|
|
version = database.get_item(
|
|
"moonraker", "file_manager.metadata_version", 0)
|
|
if version != METADATA_VERSION:
|
|
# Clear existing metadata when version is bumped
|
|
self.mddb.clear()
|
|
database.insert_item(
|
|
"moonraker", "file_manager.metadata_version",
|
|
METADATA_VERSION)
|
|
self.pending_requests = {}
|
|
self.events = {}
|
|
self.busy = False
|
|
self.gc_path = gc_path
|
|
self.prune_cb = PeriodicCallback(
|
|
self.prune_metadata, METADATA_PRUNE_TIME)
|
|
|
|
def update_gcode_path(self, path):
|
|
if path == self.gc_path:
|
|
return
|
|
self.mddb.clear()
|
|
self.gc_path = path
|
|
if not self.prune_cb.is_running():
|
|
self.prune_cb.start()
|
|
|
|
def close(self):
|
|
self.prune_cb.stop()
|
|
|
|
def get(self, key, default=None):
|
|
return self.mddb.get(key, default)
|
|
|
|
def __getitem__(self, key):
|
|
return self.mddb[key]
|
|
|
|
def prune_metadata(self):
|
|
for fname in list(self.mddb.keys()):
|
|
fpath = os.path.join(self.gc_path, fname)
|
|
if not os.path.exists(fpath):
|
|
self.remove_file(fname)
|
|
logging.info(f"Pruned file: {fname}")
|
|
continue
|
|
|
|
def _has_valid_data(self, fname, fsize, modified):
|
|
mdata = self.mddb.get(fname, {'size': "", 'modified': 0})
|
|
return mdata['size'] == fsize and mdata['modified'] == modified
|
|
|
|
def remove_file(self, fname):
|
|
metadata = self.mddb.pop(fname, None)
|
|
if metadata is None:
|
|
return
|
|
# Delete associated thumbnails
|
|
fdir = os.path.dirname(os.path.join(self.gc_path, fname))
|
|
if "thumbnails" in metadata:
|
|
for thumb in metadata["thumbnails"]:
|
|
path = thumb.get("relative_path", None)
|
|
if path is None:
|
|
continue
|
|
thumb_path = os.path.join(fdir, path)
|
|
try:
|
|
os.remove(thumb_path)
|
|
except Exception:
|
|
logging.debug(f"Error removing thumb at {thumb_path}")
|
|
|
|
def parse_metadata(self, fname, fsize, modified, notify=False):
|
|
evt = Event()
|
|
if fname in self.pending_requests or \
|
|
self._has_valid_data(fname, fsize, modified):
|
|
# request already pending or not necessary
|
|
evt.set()
|
|
return evt
|
|
self.pending_requests[fname] = (fsize, modified, notify, evt)
|
|
if self.busy:
|
|
return evt
|
|
self.busy = True
|
|
IOLoop.current().spawn_callback(self._process_metadata_update)
|
|
return evt
|
|
|
|
async def _process_metadata_update(self):
|
|
while self.pending_requests:
|
|
fname, (fsize, modified, notify, evt) = \
|
|
self.pending_requests.popitem()
|
|
if self._has_valid_data(fname, fsize, modified):
|
|
evt.set()
|
|
continue
|
|
retries = 3
|
|
while retries:
|
|
try:
|
|
await self._run_extract_metadata(fname, notify)
|
|
except Exception:
|
|
logging.exception("Error running extract_metadata.py")
|
|
retries -= 1
|
|
else:
|
|
break
|
|
else:
|
|
self.mddb[fname] = {
|
|
'size': fsize,
|
|
'modified': modified,
|
|
'print_start_time': None,
|
|
'job_id': None
|
|
}
|
|
logging.info(
|
|
f"Unable to extract medatadata from file: {fname}")
|
|
evt.set()
|
|
self.busy = False
|
|
|
|
async def _run_extract_metadata(self, filename, notify):
|
|
# Escape single quotes in the file name so that it may be
|
|
# properly loaded
|
|
filename = filename.replace("\"", "\\\"")
|
|
cmd = " ".join([sys.executable, METADATA_SCRIPT, "-p",
|
|
self.gc_path, "-f", f"\"{filename}\""])
|
|
shell_command = self.server.lookup_component('shell_command')
|
|
scmd = shell_command.build_shell_command(cmd, log_stderr=True)
|
|
result = await scmd.run_with_response(timeout=10.)
|
|
try:
|
|
decoded_resp = json.loads(result.strip())
|
|
except Exception:
|
|
logging.debug(f"Invalid metadata response:\n{result}")
|
|
raise
|
|
path = decoded_resp['file']
|
|
metadata = decoded_resp['metadata']
|
|
if not metadata:
|
|
# This indicates an error, do not add metadata for this
|
|
raise self.server.error("Unable to extract metadata")
|
|
metadata.update({'print_start_time': None, 'job_id': None})
|
|
self.mddb[path] = dict(metadata)
|
|
metadata['filename'] = path
|
|
if notify:
|
|
self.server.send_event(
|
|
"file_manager:metadata_update", metadata)
|
|
|
|
def load_component(config):
|
|
return FileManager(config)
|