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nxdumptool/nxdt_host.pyw
Pablo Curiel e70979248a Fix crashes related to tqdm. 
Use our own child window with strings generated by tqdm.format_meter() instead of relying on tqdm_tk.
2021-03-15 23:28:06 -04:00

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#!/usr/bin/env python3
"""
* nxdt_host.pyw
*
* Copyright (c) 2021, DarkMatterCore <pabloacurielz@gmail.com>.
*
* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
*
* nxdumptool is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* nxdumptool is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
# This script depends on Pillow, PyUSB and tqdm.
# You can install them with `pip install Pillow pyusb tqdm`.
# libusb needs to be installed as well. PyUSB uses it as its USB backend. Otherwise, a NoBackend exception will be raised while calling PyUSB functions.
# Under Windows, the recommended way to do this is by installing the libusb driver with Zadig (https://zadig.akeo.ie). This is a common step in Switch modding guides.
# Under MacOS, use `brew install libusb` to install libusb via Homebrew.
# Under Linux, you should be good to go from the start. If not, just use the packet manager from your distro to install libusb.
import os
import platform
import threading
import traceback
import ctypes
import logging
import queue
import shutil
import time
import struct
import usb.core
import usb.util
import warnings
import tkinter as tk
import tkinter.ttk as ttk
from tkinter import filedialog, messagebox, font, scrolledtext
from tqdm import tqdm
import base64
import io
from PIL import Image, ImageTk
# Scaling factors.
WINDOWS_SCALING_FACTOR = 96.0
SCALE = 1.0
# Window size.
WINDOW_WIDTH = 500
WINDOW_HEIGHT = 470
# Application version.
APP_VERSION = '0.2'
# Copyright year.
COPYRIGHT_YEAR = '2021'
# Messages displayed as labels.
SERVER_START_MSG = 'Please connect a Nintendo Switch console running nxdumptool.'
SERVER_STOP_MSG = 'Exit nxdumptool on your console or disconnect it at any time to stop the server.'
# USB VID/PID pair.
USB_DEV_VID = 0x057E
USB_DEV_PID = 0x3000
# USB manufacturer and product strings.
USB_DEV_MANUFACTURER = 'DarkMatterCore'
USB_DEV_PRODUCT = 'nxdumptool'
# USB timeout (milliseconds).
USB_TRANSFER_TIMEOUT = 5000
# USB transfer block size.
USB_TRANSFER_BLOCK_SIZE = 0x800000
# USB command header/status magic word.
USB_MAGIC_WORD = b'NXDT'
# Supported USB ABI version.
USB_ABI_VERSION = 1
# USB command header size.
USB_CMD_HEADER_SIZE = 0x10
# USB command IDs.
USB_CMD_START_SESSION = 0
USB_CMD_SEND_FILE_PROPERTIES = 1
USB_CMD_CANCEL_FILE_TRANSFER = 2
USB_CMD_SEND_NSP_HEADER = 3
USB_CMD_END_SESSION = 4
# USB command block sizes.
USB_CMD_BLOCK_SIZE_START_SESSION = 0x10
USB_CMD_BLOCK_SIZE_SEND_FILE_PROPERTIES = 0x320
# Max filename length (file properties).
USB_FILE_PROPERTIES_MAX_NAME_LENGTH = 0x300
# USB status codes.
USB_STATUS_SUCCESS = 0
USB_STATUS_INVALID_MAGIC_WORD = 4
USB_STATUS_UNSUPPORTED_CMD = 5
USB_STATUS_UNSUPPORTED_ABI_VERSION = 6
USB_STATUS_MALFORMED_CMD = 7
USB_STATUS_HOST_IO_ERROR = 8
# Default directory paths.
INITIAL_DIR = os.path.abspath(os.path.dirname(__file__))
DEFAULT_DIR = (INITIAL_DIR + os.path.sep + USB_DEV_PRODUCT)
# Application icon.
APP_ICON = b'iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAABfVelRYdFJhdyBw' + \
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b'MdL1A1Sch7BgO5bME/HLgjHAcZhntn6h5TA5AEG8/snnMdz1IxHvKSzYDss8EZ1DxN8kQThLPOXOAETbrNuIkd9+cjjz1Da5oc4XT5kIYA7ZRoolgDlmGyn8XLSNFJ7W' + \
b'+blmGym8Qbt5ztlGClcAN7Mjm5RIbuhSoTc78I7usJTZFk/hjnJedl130TZZ5IaltDRVw3z7NobIUcFdxWPs5k2ofX1RVVWNpKRkVJ49iQB3N6g1GoSv3MA+Q7ly+VuY' + \
b'entxfWgI2tgEYdZ+pj5KWEFabUT+O38Bf2seRJ9nEP6aH4jr/o+gm/dGyJkzqKg4DahVML4Ujz9d/dBEgqU0NlaxMZ2HSt4JyeYARPFitZkKv1/bETR8A+4FeTAdLIT/' + \
b'6Ci0pEgE1daw9cGCAqSlvYPBY0VsTOfpuhxsCkC0DRVvrdosHOvDqph4hD++Hn3PPsPmbl38hrWJiW/A50odBnelIG7Nagy9uQ8aQx2bl8s9A5DaZrpSWV//ndADLl6s' + \
b'Yu1YXx9rGxr0uEaspEqIgfGhUNZ2EuvQeblMGwAVb+smZTQahR7Q399v6YxZqhVlYGAAnK8f63P+/mysBFYDEG2jxCa1ZMnDWObnD9MnxdA018CUX8TGdF4uUwZAxas4' + \
b'XpGzzfLlISjJ+AA3Hg1HgPEantuhQ8CNTjYuyUhn63KYFIBom9ywpYqcbYqLC9ETvAau2WmorKsn1rmFyto6uB14n8w/wdYdZZS87gjAEdt4b4pjFehu6Jzvnt3jfY+d' + \
b'O5GSksHGtPV4O2nKz9nKMNGpIWV6fCdm4lnmlTlVsk2MEENKq9JQ8R5E3+7WDssVEG2j5JE4MDAQX1VbNjBKS0s9snIsV0AOVPwCmKFr68AIaXlHbOMoPb3/Cj3HEMXv' + \
b'MXTARHSOkULDsxvWyf+kDIYGkinL7Ub74ssexm1DxNPMU/EUbn3wKvM/arXD4lVkR9Xra1Hf2ITGy83w0dyHF6Oj4OXpiZLyU8jNPoRLNV/iSOEx4RMWdrz2KiIjtMJo' + \
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b'4PCnhWhursO2bfHYv/89lJeX4NyFr4V3WRgeHkbX73+g+tJ5VkIzM1OFlQmkthm1QTxFVgCUbiJq7eqVOJD3MUykHLf//AuyDh5mVYdmXKS0tAzbt25B4eel+DAnD5GR' + \
b'EcKKBXtsI4ULC1sje/eKjX0Be/fq4ElqP6W1tQ1hYaGsv1LyJIJC942EhE2sX1b2BWsp9OGOjtZ5GzMvokgASrCPVhs7Mi8i20JyoLZxIQUseYod1lZmLQCx2ky3SdnC' + \
b'rAQgrTb2ev5uZjwAR6uNNWY0AKVsI2XGAlDSNlJmJAClbSPF6QE4wzZSnBqAs2wjxWkBONM2Upzyrc62jRTFv5k+7vMzjZA/4O1Os80EwP/vHLXv3BH8dQAAAABJRU5E' + \
b'rkJggg=='
g_Logger = logging.getLogger()
g_stopEvent = threading.Event()
# Reference: https://beenje.github.io/blog/posts/logging-to-a-tkinter-scrolledtext-widget.
class LogQueueHandler(logging.Handler):
def __init__(self, log_queue):
super().__init__()
self.log_queue = log_queue
def emit(self, record):
self.log_queue.put(record)
# Reference: https://beenje.github.io/blog/posts/logging-to-a-tkinter-scrolledtext-widget.
class LogConsole:
def __init__(self, scrolled_text):
self.scrolled_text = scrolled_text
self.frame = self.scrolled_text.winfo_toplevel()
# Create a logging handler using a queue.
self.log_queue = queue.Queue()
self.queue_handler = LogQueueHandler(self.log_queue)
#formatter = logging.Formatter('[%(asctime)s] -> %(message)s')
formatter = logging.Formatter('%(message)s')
self.queue_handler.setFormatter(formatter)
g_Logger.addHandler(self.queue_handler)
# Start polling messages from the queue.
self.frame.after(100, self.poll_log_queue)
def display(self, record):
msg = self.queue_handler.format(record)
self.scrolled_text.configure(state='normal')
self.scrolled_text.insert(tk.END, msg + '\n', record.levelname)
self.scrolled_text.configure(state='disabled')
self.scrolled_text.yview(tk.END)
def poll_log_queue(self):
# Check every 100 ms if there is a new message in the queue to display.
while True:
try:
record = self.log_queue.get(block=False)
except queue.Empty:
break
else:
self.display(record)
self.frame.after(100, self.poll_log_queue)
# Loosely based on tk.py from tqdm.
class ProgressBar:
def __init__(self, total, prefix='', unit='B', bar_format=None, tk_parent=None, window_title='', window_resize=False, window_protocol=None):
if (tk_parent is None) or (total <= 0):
raise Exception('Invalid arguments!')
self.n = 0
self.total = total
self.prefix = prefix
self.unit = unit
self.bar_format = bar_format
self.tk_parent = tk_parent
self.tk_window = tk.Toplevel(self.tk_parent)
if window_title:
self.tk_window.title(window_title)
self.tk_window.resizable(window_resize, window_resize)
if window_protocol:
self.tk_window.protocol('WM_DELETE_WINDOW', window_protocol)
self.tk_window.attributes('-topmost', True)
self.tk_window.after(0, lambda: self.tk_window.attributes('-topmost', False))
pbar_frame = ttk.Frame(self.tk_window, padding=5)
pbar_frame.pack()
self.tk_text_var = tk.StringVar(self.tk_window)
tk_label = ttk.Label(pbar_frame, textvariable=self.tk_text_var, wraplength=600, anchor='center', justify='center')
tk_label.pack()
self.tk_n_var = tk.DoubleVar(self.tk_window, value=0)
self.tk_pbar = ttk.Progressbar(pbar_frame, variable=self.tk_n_var, length=450)
self.tk_pbar.configure(maximum=self.total, mode='determinate')
self.tk_pbar.pack()
self.start = time.time()
self.update(0)
def close(self):
self.tk_parent.after(0, self.tk_window.destroy)
def update(self, n):
if (self.n + n) > self.total:
return
self.n += n
elapsed = (time.time() - self.start)
msg = tqdm.format_meter(n=self.n, total=self.total, elapsed=elapsed, prefix=self.prefix, unit=self.unit, bar_format=self.bar_format)
self.tk_text_var.set(msg)
self.tk_n_var.set(self.n)
def reset(self, total):
if (total <= 0):
raise Exception('Invalid total value!')
self.n = 0
self.total = total
self.tk_pbar.configure(maximum=self.total, mode='determinate')
self.start = time.time()
self.update(0)
def utilsIsValueAlignedToEndpointPacketSize(value):
return bool((value & (g_usbEpMaxPacketSize - 1)) == 0)
def utilsResetNspInfo():
global g_nspTransferMode, g_nspSize, g_nspHeaderSize, g_nspRemainingSize, g_nspFile, g_nspFilePath
# Reset NSP transfer mode info.
g_nspTransferMode = False
g_nspSize = 0
g_nspHeaderSize = 0
g_nspRemainingSize = 0
g_nspFile = None
g_nspFilePath = None
def utilsGetSizeUnitAndDivisor(size):
size_suffixes = [ 'B', 'KiB', 'MiB', 'GiB' ]
size_suffixes_count = len(size_suffixes)
float_size = float(size)
ret = None
for i in range(size_suffixes_count):
if (float_size < pow(1024, i + 1)) or ((i + 1) >= size_suffixes_count):
ret = (size_suffixes[i], pow(1024, i))
break
return ret
def usbGetDeviceEndpoints():
global g_usbEpIn, g_usbEpOut, g_usbEpMaxPacketSize
prev_dev = cur_dev = None
usb_ep_in_lambda = lambda ep: usb.util.endpoint_direction(ep.bEndpointAddress) == usb.util.ENDPOINT_IN
usb_ep_out_lambda = lambda ep: usb.util.endpoint_direction(ep.bEndpointAddress) == usb.util.ENDPOINT_OUT
usb_version = None
while True:
# Check if the user decided to stop the server.
if g_stopEvent.is_set():
g_stopEvent.clear()
return False
# Find a connected USB device with a matching VID/PID pair.
cur_dev = usb.core.find(idVendor=USB_DEV_VID, idProduct=USB_DEV_PID)
if (cur_dev is None) or ((prev_dev is not None) and (cur_dev.bus == prev_dev.bus) and (cur_dev.address == prev_dev.address)): # Using == here would also compare the backend.
time.sleep(0.1)
continue
# Update previous device.
prev_dev = cur_dev
# Check if the product and manufacturer strings match the ones used by nxdumptool.
#if (cur_dev.manufacturer != USB_DEV_MANUFACTURER) or (cur_dev.product != USB_DEV_PRODUCT):
if cur_dev.manufacturer != USB_DEV_MANUFACTURER:
g_Logger.error('Invalid manufacturer/product strings! (bus %u, address %u).' % (cur_dev.bus, cur_dev.address))
time.sleep(0.1)
continue
# Reset device.
cur_dev.reset()
# Set default device configuration, then get the active configuration descriptor.
cur_dev.set_configuration()
cfg = cur_dev.get_active_configuration()
# Get default interface descriptor.
intf = cfg[(0,0)]
# Retrieve endpoints.
g_usbEpIn = usb.util.find_descriptor(intf, custom_match=usb_ep_in_lambda)
g_usbEpOut = usb.util.find_descriptor(intf, custom_match=usb_ep_out_lambda)
if (g_usbEpIn is None) or (g_usbEpOut is None):
g_Logger.error('Invalid endpoint addresses! (bus %u, address %u).' % (cur_dev.bus, cur_dev.address))
time.sleep(0.1)
continue
# Save endpoint max packet size and USB version.
g_usbEpMaxPacketSize = g_usbEpIn.wMaxPacketSize
usb_version = cur_dev.bcdUSB
break
g_tkCanvas.itemconfigure(g_tkTipMessage, state='normal', text=SERVER_STOP_MSG)
g_Logger.debug('Successfully retrieved USB endpoints! (bus %u, address %u).' % (cur_dev.bus, cur_dev.address))
g_Logger.debug('Max packet size: 0x%X (USB %u.%u).\n' % (g_usbEpMaxPacketSize, usb_version >> 8, (usb_version & 0xFF) >> 4))
return True
def usbRead(size, timeout=-1):
rd = None
try:
# Convert read data to a bytes object for easier handling.
rd = bytes(g_usbEpIn.read(size, timeout))
except:
traceback.print_exc()
g_Logger.error('\nUSB timeout triggered or console disconnected.')
return rd
def usbWrite(data, timeout=-1):
wr = 0
try:
wr = g_usbEpOut.write(data, timeout)
except:
traceback.print_exc()
g_Logger.error('\nUSB timeout triggered or console disconnected.')
return wr
def usbSendStatus(code):
status = struct.pack('<4sIH6p', USB_MAGIC_WORD, code, g_usbEpMaxPacketSize, b'')
return usbWrite(status, USB_TRANSFER_TIMEOUT) == len(status)
def usbHandleStartSession(cmd_block):
global g_nxdtVersionMajor, g_nxdtVersionMinor, g_nxdtVersionMicro, g_nxdtAbiVersion
g_Logger.debug('Received StartSession (%02X) command.' % (USB_CMD_START_SESSION))
# Parse command block.
(g_nxdtVersionMajor, g_nxdtVersionMinor, g_nxdtVersionMicro, g_nxdtAbiVersion) = struct.unpack_from('<BBBB', cmd_block, 0)
# Print client info.
g_Logger.info('Client info: nxdumptool v%u.%u.%u - ABI v%u.\n' % (g_nxdtVersionMajor, g_nxdtVersionMinor, g_nxdtVersionMicro, g_nxdtAbiVersion))
# Check if we support this ABI version.
if g_nxdtAbiVersion != USB_ABI_VERSION:
g_Logger.error('Unsupported ABI version!')
return USB_STATUS_UNSUPPORTED_ABI_VERSION
# Return status code
return USB_STATUS_SUCCESS
def usbHandleSendFileProperties(cmd_block):
global g_nspTransferMode, g_nspSize, g_nspHeaderSize, g_nspRemainingSize, g_nspFile, g_nspFilePath, g_outputDir, g_tkRoot
g_Logger.debug('Received SendFileProperties (%02X) command.' % (USB_CMD_SEND_FILE_PROPERTIES))
# Parse command block.
(file_size, filename_length, nsp_header_size, raw_filename) = struct.unpack_from('<QII{}s'.format(USB_FILE_PROPERTIES_MAX_NAME_LENGTH), cmd_block, 0)
filename = raw_filename.decode('utf-8').strip('\x00')
# Print info.
info_str = ('File size: 0x%X | Filename length: 0x%X' % (file_size, filename_length))
if nsp_header_size > 0:
info_str += (' | NSP header size: 0x%X' % (nsp_header_size))
info_str += '.'
g_Logger.info(info_str)
g_Logger.info('Filename: "%s".' % (filename))
# Perform integrity checks
if (g_nspTransferMode == False) and (file_size > 0) and (nsp_header_size >= file_size):
g_Logger.error('NSP header size must be smaller than the full NSP size!')
return USB_STATUS_MALFORMED_CMD
if (g_nspTransferMode == True) and (nsp_header_size > 0):
g_Logger.error('Received non-zero NSP header size during NSP transfer mode!')
return USB_STATUS_MALFORMED_CMD
if (filename_length <= 0) or (filename_length > USB_FILE_PROPERTIES_MAX_NAME_LENGTH):
g_Logger.error('Invalid filename length!')
return USB_STATUS_MALFORMED_CMD
# Enable NSP transfer mode (if needed).
if (g_nspTransferMode == False) and (file_size > 0) and (nsp_header_size > 0):
g_nspTransferMode = True
g_nspSize = file_size
g_nspRemainingSize = (file_size - nsp_header_size)
g_nspHeaderSize = nsp_header_size
g_nspFile = None
g_nspFilePath = None
g_Logger.debug('NSP transfer mode enabled!\n')
# Perform additional integrity checks and get a file object to work with.
if (g_nspTransferMode == False) or ((g_nspTransferMode == True) and (g_nspFile is None)):
# Check if we're dealing with an absolute path.
if filename[0] == '/':
filename = filename[1:]
# Replace all slashes with backslashes if we're running under Windows.
if os.name == 'nt':
filename = filename.replace('/', '\\')
# Generate full, absolute path to the destination file.
fullpath = os.path.abspath(g_outputDir + os.path.sep + filename)
# Get parent directory path.
dirpath = os.path.dirname(fullpath)
# Create full directory tree.
os.makedirs(dirpath, exist_ok=True)
# Make sure the output filepath doesn't point to an existing directory.
if (os.path.exists(fullpath) == True) and (os.path.isfile(fullpath) == False):
utilsResetNspInfo()
g_Logger.error('Output filepath points to an existing directory! ("%s").' % (fullpath))
return USB_STATUS_HOST_IO_ERROR
# Make sure we have enough free space.
(total_space, used_space, free_space) = shutil.disk_usage(dirpath)
if free_space <= file_size:
utilsResetNspInfo()
g_Logger.error('Not enough free space available in output volume!')
return USB_STATUS_HOST_IO_ERROR
# Get file object.
file = open(fullpath, "wb")
if g_nspTransferMode == True:
# Update NSP file object.
g_nspFile = file
# Update NSP file path.
g_nspFilePath = fullpath
# Write NSP header padding right away.
file.write(b'\0' * g_nspHeaderSize)
else:
# Retrieve what we need using global variables.
file = g_nspFile
fullpath = g_nspFilePath
dirpath = os.path.dirname(fullpath)
# Check if we're dealing with an empty file or with the first SendFileProperties command from a NSP.
if (file_size == 0) or ((g_nspTransferMode == True) and (file_size == g_nspSize)):
# Close file (if needed).
if g_nspTransferMode == False:
file.close()
# Let the command handler take care of sending the status response for us.
return USB_STATUS_SUCCESS
# Send status response before entering the data transfer stage.
usbSendStatus(USB_STATUS_SUCCESS)
# Start data transfer stage.
g_Logger.info('Data transfer started. Saving %s to: "%s".' % (('file' if (g_nspTransferMode == False) else 'NSP file entry'), fullpath))
offset = 0
blksize = USB_TRANSFER_BLOCK_SIZE
# Initialize progress bar.
(unit, unit_divisor) = utilsGetSizeUnitAndDivisor(file_size)
total = (float(file_size) / unit_divisor)
idx = filename.rfind(os.path.sep)
prefix_filename = (filename[idx+1:] if (idx >= 0) else filename)
prefix = ('Current file: "%s".\n' % (prefix_filename))
prefix += 'Use your console to cancel the file transfer if you wish to do so.\n\n'
bar_format = '{desc}{percentage:.2f}% - {n:.2f} / {total:.2f} {unit}\nElapsed time: {elapsed}. Remaining time: {remaining}.\nSpeed: {rate_fmt}.'
pbar = ProgressBar(total, prefix, unit, bar_format, g_tkRoot, 'File transfer', False, uiHandleExitProtocolStub)
def cancelTransfer():
# Cancel file transfer.
file.close()
os.remove(fullpath)
utilsResetNspInfo()
pbar.close()
while offset < file_size:
# Update block size (if needed).
diff = (file_size - offset)
if blksize > diff:
blksize = diff
# Handle Zero-Length Termination packet (if needed).
if ((offset + blksize) >= file_size) and (utilsIsValueAlignedToEndpointPacketSize(blksize) == True):
rd_size = (blksize + 1)
else:
rd_size = blksize
# Read current chunk.
chunk = usbRead(rd_size, USB_TRANSFER_TIMEOUT)
if chunk == None:
g_Logger.error('Failed to read 0x%X byte(s) long data chunk!' % (rd_size))
# Cancel file transfer.
cancelTransfer()
# Returning None will make the command handler exit right away.
return None
chunk_size = len(chunk)
# Check if we're dealing with a CancelFileTransfer command.
if chunk_size == USB_CMD_HEADER_SIZE:
(magic, cmd_id, cmd_block_size) = struct.unpack_from('<4sII', chunk, 0)
if (magic == USB_MAGIC_WORD) and (cmd_id == USB_CMD_CANCEL_FILE_TRANSFER):
g_Logger.debug('Received CancelFileTransfer (%02X) command.' % (USB_CMD_CANCEL_FILE_TRANSFER))
# Cancel file transfer.
cancelTransfer()
# Let the command handler take care of sending the status response for us.
return USB_STATUS_SUCCESS
# Write current chunk.
file.write(chunk)
file.flush()
# Update current offset.
offset = (offset + chunk_size)
# Update remaining NSP data size.
if g_nspTransferMode == True:
g_nspRemainingSize = (g_nspRemainingSize - chunk_size)
# Update progress bar once per second.
pbar.update(float(chunk_size) / unit_divisor)
#pbar.refresh()
elapsed_time = round(time.time() - pbar.start)
g_Logger.info('File transfer successfully completed in %s!\n' % (tqdm.format_interval(elapsed_time)))
# Close progress bar
pbar.close()
# Close file handle (if needed).
if g_nspTransferMode == False:
file.close()
return USB_STATUS_SUCCESS
def usbHandleSendNspHeader(cmd_block):
global g_nspTransferMode, g_nspHeaderSize, g_nspRemainingSize, g_nspFile, g_nspFilePath
nsp_header_size = len(cmd_block)
g_Logger.debug('Received SendNspHeader (%02X) command.' % (USB_CMD_SEND_NSP_HEADER))
# Integrity checks.
if g_nspTransferMode == False:
g_Logger.error('Received NSP header out of NSP transfer mode!')
return USB_STATUS_MALFORMED_CMD
if g_nspRemainingSize > 0:
g_Logger.error('Received NSP header before receiving all NSP data! (missing 0x%X byte[s]).' % (g_nspRemainingSize))
return USB_STATUS_MALFORMED_CMD
if nsp_header_size != g_nspHeaderSize:
g_Logger.error('NSP header size mismatch! (0x%X != 0x%X).' % (nsp_header_size, g_nspHeaderSize))
return USB_STATUS_MALFORMED_CMD
# Write NSP header.
g_nspFile.seek(0)
g_nspFile.write(cmd_block)
g_nspFile.close()
g_Logger.debug('Successfully wrote 0x%X byte-long NSP header to "%s".\n' % (nsp_header_size, g_nspFilePath))
# Disable NSP transfer mode.
utilsResetNspInfo()
return USB_STATUS_SUCCESS
def usbHandleEndSession(cmd_block):
g_Logger.debug('Received EndSession (%02X) command.' % (USB_CMD_END_SESSION))
return USB_STATUS_SUCCESS
def usbCommandHandler():
# CancelFileTransfer is handled in usbHandleSendFileProperties().
cmd_dict = {
USB_CMD_START_SESSION: usbHandleStartSession,
USB_CMD_SEND_FILE_PROPERTIES: usbHandleSendFileProperties,
USB_CMD_SEND_NSP_HEADER: usbHandleSendNspHeader,
USB_CMD_END_SESSION: usbHandleEndSession
}
# Get device endpoints.
if usbGetDeviceEndpoints() == False:
# Update UI and return.
uiToggleElements(True)
return
# Disable server button.
g_tkServerButton.configure(state='disabled')
# Reset NSP info.
utilsResetNspInfo()
while True:
# Read command header.
cmd_header = usbRead(USB_CMD_HEADER_SIZE)
if (cmd_header is None) or (len(cmd_header) != USB_CMD_HEADER_SIZE):
g_Logger.error('Failed to read 0x%X byte(s) long command header!' % (USB_CMD_HEADER_SIZE))
break
# Parse command header.
(magic, cmd_id, cmd_block_size) = struct.unpack_from('<4sII', cmd_header, 0)
# Read command block right away (if needed).
# nxdumptool expects us to read it right after sending the command header.
cmd_block = None
if cmd_block_size > 0:
# Handle Zero-Length Termination packet (if needed).
if utilsIsValueAlignedToEndpointPacketSize(cmd_block_size) == True:
rd_size = (cmd_block_size + 1)
else:
rd_size = cmd_block_size
cmd_block = usbRead(rd_size, USB_TRANSFER_TIMEOUT)
if (cmd_block is None) or (len(cmd_block) != cmd_block_size):
g_Logger.error('Failed to read 0x%X byte(s) long command block for command ID %02X!' % (cmd_block_size, cmd_id))
break
# Verify magic word.
if magic != USB_MAGIC_WORD:
g_Logger.error('Received command header with invalid magic word!')
usbSendStatus(USB_STATUS_INVALID_MAGIC_WORD)
continue
# Get command handler function.
cmd_func = cmd_dict.get(cmd_id, None)
if cmd_func is None:
g_Logger.error('Received command header with unsupported ID %02X.' % (cmd_id))
usbSendStatus(USB_STATUS_UNSUPPORTED_CMD)
continue
# Verify command block size.
if ((cmd_id == USB_CMD_START_SESSION) and (cmd_block_size != USB_CMD_BLOCK_SIZE_START_SESSION)) or \
((cmd_id == USB_CMD_SEND_FILE_PROPERTIES) and (cmd_block_size != USB_CMD_BLOCK_SIZE_SEND_FILE_PROPERTIES)) or \
((cmd_id == USB_CMD_SEND_NSP_HEADER) and (cmd_block_size == 0)):
g_Logger.error('Invalid command block size for command ID %02X! (0x%X).' % (cmd_id, cmd_block_size))
usbSendStatus(USB_STATUS_MALFORMED_COMMAND)
continue
# Run command handler function.
# Send status response afterwards. Bail out if requested.
status = cmd_func(cmd_block)
if (status == None) or (not usbSendStatus(status)) or (cmd_id == USB_CMD_END_SESSION) or (status == USB_STATUS_UNSUPPORTED_ABI_VERSION):
break
g_Logger.info('Stopping server.')
# Update UI.
uiToggleElements(True)
def uiStopServer():
# Signal the shared stop event.
g_stopEvent.set()
def uiStartServer():
global g_outputDir
g_outputDir = g_tkDirText.get('1.0', tk.END).strip()
if not g_outputDir:
# We should never reach this, honestly.
messagebox.showerror('Error', 'You must provide an output directory!', parent=g_tkRoot)
return
# Make sure the full directory tree exists.
try:
os.makedirs(g_outputDir, exist_ok=True)
except:
traceback.print_exc()
messagebox.showerror('Error', 'Unable to create full output directory tree!', parent=g_tkRoot)
return
# Update UI.
uiToggleElements(False)
# Create background server thread.
server_thread = threading.Thread(target=usbCommandHandler, daemon=True)
server_thread.start()
def uiToggleElements(enable):
if enable == True:
g_tkRoot.protocol('WM_DELETE_WINDOW', uiHandleExitProtocol)
g_tkChooseDirButton.configure(state='normal')
g_tkServerButton.configure(text='Start server', command=uiStartServer, state='normal')
g_tkCanvas.itemconfigure(g_tkTipMessage, state='hidden', text='')
else:
g_tkRoot.protocol('WM_DELETE_WINDOW', uiHandleExitProtocolStub)
g_tkChooseDirButton.configure(state='disabled')
g_tkServerButton.configure(text='Stop server', command=uiStopServer, state='normal')
g_tkCanvas.itemconfigure(g_tkTipMessage, state='normal', text=SERVER_START_MSG)
g_tkScrolledTextLog.configure(state='normal')
g_tkScrolledTextLog.delete('1.0', tk.END)
g_tkScrolledTextLog.configure(state='disabled')
def uiChooseDirectory():
dir = filedialog.askdirectory(parent=g_tkRoot, title='Select an output directory', initialdir=INITIAL_DIR, mustexist=True)
if dir:
dir = os.path.abspath(dir)
uiUpdateDirectoryField(dir)
def uiUpdateDirectoryField(dir):
g_tkDirText.configure(state='normal')
g_tkDirText.delete('1.0', tk.END)
g_tkDirText.insert('1.0', dir)
g_tkDirText.configure(state='disabled')
def uiHandleExitProtocol():
if messagebox.askokcancel('Message', 'Are you sure you want to exit?', parent=g_tkRoot):
g_tkRoot.destroy()
def uiHandleExitProtocolStub():
pass
def uiHandleTabInput(event):
event.widget.tk_focusNext().focus()
return 'break'
def uiHandleShiftTabInput(event):
event.widget.tk_focusPrev().focus()
return 'break'
def uiScaleMeasure(measure):
return round(float(measure) * SCALE)
def main():
global SCALE, g_tkRoot, g_tkCanvas, g_tkDirText, g_tkChooseDirButton, g_tkServerButton, g_tkTipMessage, g_tkScrolledTextLog
# Disable warnings.
warnings.filterwarnings("ignore")
# Get OS information.
os_type = platform.system()
os_version = platform.version()
# Check if we're running under Windows Vista or later.
dpi_aware = False
win_vista = ((os_type == 'Windows') and (int(os_version[:os_version.find('.')]) >= 6))
if win_vista == True:
try:
# Enable high DPI scaling.
dpi_aware = (ctypes.windll.user32.SetProcessDPIAware() == 1)
if dpi_aware == False:
dpi_aware = (ctypes.windll.shcore.SetProcessDpiAwareness(1) == 0)
except:
traceback.print_exc()
# Create root Tkinter object.
g_tkRoot = tk.Tk()
# Get screen resolution.
screen_width_px = g_tkRoot.winfo_screenwidth()
screen_height_px = g_tkRoot.winfo_screenheight()
# Get pixel density (DPI).
screen_dpi = round(g_tkRoot.winfo_fpixels('1i'))
# Update scaling factor (if needed).
if (win_vista == True) and (dpi_aware == True):
SCALE = (float(screen_dpi) / WINDOWS_SCALING_FACTOR)
# Decode embedded icon and set it.
try:
icon_fp = io.BytesIO(base64.b64decode(APP_ICON))
icon_image = Image.open(fp=icon_fp, formats=['PNG'])
icon_photo = ImageTk.PhotoImage(icon_image)
g_tkRoot.wm_iconphoto(True, icon_photo)
icon_image.close()
icon_fp.close()
except:
traceback.print_exc()
g_tkRoot.withdraw()
messagebox.showerror('Error', 'Unable to decode embedded application icon!')
g_tkRoot.destroy()
return
# Set window properties.
g_tkRoot.resizable(False, False)
g_tkRoot.title("{} host app v{}".format(USB_DEV_PRODUCT, APP_VERSION))
g_tkRoot.protocol('WM_DELETE_WINDOW', uiHandleExitProtocol)
# Determine window size.
window_width_px = uiScaleMeasure(WINDOW_WIDTH)
window_height_px = uiScaleMeasure(WINDOW_HEIGHT)
# Center window.
pos_hor = int((screen_width_px / 2) - (window_width_px / 2))
pos_ver = int((screen_height_px / 2) - (window_height_px / 2))
g_tkRoot.geometry("+{}+{}".format(pos_hor, pos_ver))
# Create canvas and fill it with window elements.
g_tkCanvas = tk.Canvas(g_tkRoot, width=window_width_px, height=window_height_px)
g_tkCanvas.pack()
g_tkCanvas.create_text(uiScaleMeasure(60), uiScaleMeasure(30), text='Output directory:', anchor=tk.CENTER)
g_tkDirText = tk.Text(g_tkRoot, height=1, width=45, font=font.nametofont('TkDefaultFont'), wrap='none', state='disabled', bg='#F0F0F0')
uiUpdateDirectoryField(DEFAULT_DIR)
g_tkCanvas.create_window(uiScaleMeasure(260), uiScaleMeasure(30), window=g_tkDirText, anchor=tk.CENTER)
g_tkChooseDirButton = tk.Button(g_tkRoot, text='Choose', width=10, command=uiChooseDirectory)
g_tkCanvas.create_window(uiScaleMeasure(450), uiScaleMeasure(30), window=g_tkChooseDirButton, anchor=tk.CENTER)
g_tkServerButton = tk.Button(g_tkRoot, text='Start server', width=15, command=uiStartServer)
g_tkCanvas.create_window(uiScaleMeasure(WINDOW_WIDTH / 2), uiScaleMeasure(70), window=g_tkServerButton, anchor=tk.CENTER)
g_tkTipMessage = g_tkCanvas.create_text(uiScaleMeasure(WINDOW_WIDTH / 2), uiScaleMeasure(100), anchor=tk.CENTER)
g_tkCanvas.itemconfigure(g_tkTipMessage, state='hidden', text='')
g_tkScrolledTextLog = scrolledtext.ScrolledText(g_tkRoot, height=20, width=65, font=font.nametofont('TkDefaultFont'), wrap=tk.WORD, state='disabled')
g_tkScrolledTextLog.tag_config('INFO', foreground='black')
g_tkScrolledTextLog.tag_config('DEBUG', foreground='gray')
g_tkScrolledTextLog.tag_config('WARNING', foreground='orange')
g_tkScrolledTextLog.tag_config('ERROR', foreground='red')
g_tkScrolledTextLog.tag_config('CRITICAL', foreground='red', underline=1)
g_tkCanvas.create_window(uiScaleMeasure(WINDOW_WIDTH / 2), uiScaleMeasure(280), window=g_tkScrolledTextLog, anchor=tk.CENTER)
g_tkCanvas.create_text(uiScaleMeasure(5), uiScaleMeasure(WINDOW_HEIGHT - 10), text="Copyright (c) {}, {}".format(COPYRIGHT_YEAR, USB_DEV_MANUFACTURER), anchor=tk.W)
# Configure logging mechanism.
logging.basicConfig(level=logging.DEBUG)
if len(g_Logger.handlers) > 0:
log_stderr = g_Logger.handlers[0]
g_Logger.removeHandler(log_stderr)
# Initialize console g_Logger.
console = LogConsole(g_tkScrolledTextLog)
# Enter Tkinter main loop.
g_tkRoot.mainloop()
if __name__ == "__main__":
try:
main()
except KeyboardInterrupt:
pass
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