352 lines
11 KiB
Python
352 lines
11 KiB
Python
from wrapper.toxcore_enums_and_consts import TOX_FILE_KIND, TOX_FILE_CONTROL
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from os.path import basename, getsize, exists, dirname
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from os import remove, rename, chdir
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from time import time
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from wrapper.tox import Tox
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from common.event import Event
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from middleware.threads import invoke_in_main_thread
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FILE_TRANSFER_STATE = {
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'RUNNING': 0,
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'PAUSED_BY_USER': 1,
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'CANCELLED': 2,
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'FINISHED': 3,
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'PAUSED_BY_FRIEND': 4,
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'INCOMING_NOT_STARTED': 5,
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'OUTGOING_NOT_STARTED': 6,
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'UNSENT': 7
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}
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ACTIVE_FILE_TRANSFERS = (0, 1, 4, 5, 6)
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PAUSED_FILE_TRANSFERS = (1, 4, 5, 6)
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DO_NOT_SHOW_ACCEPT_BUTTON = (2, 3, 4, 6)
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SHOW_PROGRESS_BAR = (0, 1, 4)
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def is_inline(file_name):
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allowed_inlines = ('toxygen_inline.png', 'utox-inline.png', 'sticker.png')
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return file_name in allowed_inlines or file_name.startswith('qTox_Image_')
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class FileTransfer:
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"""
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Superclass for file transfers
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"""
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def __init__(self, path, tox, friend_number, size, file_number=None):
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self._path = path
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self._tox = tox
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self._friend_number = friend_number
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self._state = FILE_TRANSFER_STATE['RUNNING']
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self._file_number = file_number
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self._creation_time = None
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self._size = float(size)
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self._done = 0
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self._state_changed_event = Event()
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self._finished_event = Event()
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self._file_id = self._file = None
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def set_state_changed_handler(self, handler):
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self._state_changed_event += lambda *args: invoke_in_main_thread(handler, *args)
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def set_transfer_finished_handler(self, handler):
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self._finished_event += lambda *args: invoke_in_main_thread(handler, *args)
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def get_file_number(self):
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return self._file_number
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file_number = property(get_file_number)
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def get_state(self):
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return self._state
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def set_state(self, value):
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self._state = value
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self._signal()
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state = property(get_state, set_state)
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def get_friend_number(self):
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return self._friend_number
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friend_number = property(get_friend_number)
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def get_file_id(self):
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return self._file_id
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file_id = property(get_file_id)
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def get_path(self):
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return self._path
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path = property(get_path)
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def get_size(self):
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return self._size
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size = property(get_size)
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def cancel(self):
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self.send_control(TOX_FILE_CONTROL['CANCEL'])
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if self._file is not None:
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self._file.close()
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self._signal()
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def cancelled(self):
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if self._file is not None:
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self._file.close()
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self.set_state(FILE_TRANSFER_STATE['CANCELLED'])
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def pause(self, by_friend):
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if not by_friend:
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self.send_control(TOX_FILE_CONTROL['PAUSE'])
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else:
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self.set_state(FILE_TRANSFER_STATE['PAUSED_BY_FRIEND'])
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def send_control(self, control):
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if self._tox.file_control(self._friend_number, self._file_number, control):
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self.set_state(control)
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def get_file_id(self):
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return self._tox.file_get_file_id(self._friend_number, self._file_number)
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def _signal(self):
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percentage = self._done / self._size if self._size else 0
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if self._creation_time is None or not percentage:
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t = -1
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else:
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t = ((time() - self._creation_time) / percentage) * (1 - percentage)
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self._state_changed_event(self.state, percentage, int(t))
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def _finished(self):
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self._finished_event(self._friend_number, self._file_number)
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# -----------------------------------------------------------------------------------------------------------------
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# Send file
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# -----------------------------------------------------------------------------------------------------------------
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class SendTransfer(FileTransfer):
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def __init__(self, path, tox, friend_number, kind=TOX_FILE_KIND['DATA'], file_id=None):
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if path is not None:
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fl = open(path, 'rb')
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size = getsize(path)
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else:
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fl = None
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size = 0
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super().__init__(path, tox, friend_number, size)
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self._file = fl
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self.state = FILE_TRANSFER_STATE['OUTGOING_NOT_STARTED']
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self._file_number = tox.file_send(friend_number, kind, size, file_id,
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bytes(basename(path), 'utf-8') if path else b'')
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self._file_id = self.get_file_id()
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def send_chunk(self, position, size):
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"""
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Send chunk
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:param position: start position in file
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:param size: chunk max size
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"""
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if self._creation_time is None:
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self._creation_time = time()
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if size:
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self._file.seek(position)
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data = self._file.read(size)
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self._tox.file_send_chunk(self._friend_number, self._file_number, position, data)
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self._done += size
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self._signal()
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else:
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if self._file is not None:
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self._file.close()
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self.state = FILE_TRANSFER_STATE['FINISHED']
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self._finished()
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class SendAvatar(SendTransfer):
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"""
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Send avatar to friend. Doesn't need file transfer item
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"""
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def __init__(self, path, tox, friend_number):
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if path is None:
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avatar_hash = None
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else:
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with open(path, 'rb') as fl:
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avatar_hash = Tox.hash(fl.read())
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super().__init__(path, tox, friend_number, TOX_FILE_KIND['AVATAR'], avatar_hash)
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class SendFromBuffer(FileTransfer):
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"""
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Send inline image
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"""
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def __init__(self, tox, friend_number, data, file_name):
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super().__init__(None, tox, friend_number, len(data))
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self.state = FILE_TRANSFER_STATE['OUTGOING_NOT_STARTED']
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self._data = data
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self._file_number = tox.file_send(friend_number, TOX_FILE_KIND['DATA'],
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len(data), None, bytes(file_name, 'utf-8'))
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def get_data(self):
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return self._data
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data = property(get_data)
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def send_chunk(self, position, size):
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if self._creation_time is None:
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self._creation_time = time()
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if size:
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data = self._data[position:position + size]
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self._tox.file_send_chunk(self._friend_number, self._file_number, position, data)
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self._done += size
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else:
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self.state = FILE_TRANSFER_STATE['FINISHED']
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self._finished()
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self._signal()
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class SendFromFileBuffer(SendTransfer):
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def __init__(self, *args):
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super().__init__(*args)
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def send_chunk(self, position, size):
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super().send_chunk(position, size)
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if not size:
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chdir(dirname(self._path))
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remove(self._path)
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# -----------------------------------------------------------------------------------------------------------------
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# Receive file
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# -----------------------------------------------------------------------------------------------------------------
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class ReceiveTransfer(FileTransfer):
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def __init__(self, path, tox, friend_number, size, file_number, position=0):
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super().__init__(path, tox, friend_number, size, file_number)
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self._file = open(self._path, 'wb')
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self._file_size = position
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self._file.truncate(position)
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self._missed = set()
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self._file_id = self.get_file_id()
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self._done = position
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def cancel(self):
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super().cancel()
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remove(self._path)
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def total_size(self):
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self._missed.add(self._file_size)
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return min(self._missed)
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def write_chunk(self, position, data):
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"""
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Incoming chunk
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:param position: position in file to save data
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:param data: raw data (string)
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"""
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if self._creation_time is None:
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self._creation_time = time()
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if data is None:
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self._file.close()
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self.state = FILE_TRANSFER_STATE['FINISHED']
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self._finished()
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else:
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data = bytearray(data)
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if self._file_size < position:
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self._file.seek(0, 2)
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self._file.write(b'\0' * (position - self._file_size))
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self._missed.add(self._file_size)
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else:
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self._missed.discard(position)
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self._file.seek(position)
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self._file.write(data)
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l = len(data)
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if position + l > self._file_size:
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self._file_size = position + l
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self._done += l
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self._signal()
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class ReceiveToBuffer(FileTransfer):
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"""
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Inline image - save in buffer not in file system
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"""
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def __init__(self, tox, friend_number, size, file_number):
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super().__init__(None, tox, friend_number, size, file_number)
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self._data = bytes()
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self._data_size = 0
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def get_data(self):
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return self._data
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data = property(get_data)
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def write_chunk(self, position, data):
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if self._creation_time is None:
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self._creation_time = time()
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if data is None:
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self.state = FILE_TRANSFER_STATE['FINISHED']
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self._finished()
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else:
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data = bytes(data)
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l = len(data)
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if self._data_size < position:
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self._data += (b'\0' * (position - self._data_size))
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self._data = self._data[:position] + data + self._data[position + l:]
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if position + l > self._data_size:
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self._data_size = position + l
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self._done += l
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self._signal()
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class ReceiveAvatar(ReceiveTransfer):
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"""
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Get friend's avatar. Doesn't need file transfer item
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"""
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MAX_AVATAR_SIZE = 512 * 1024
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def __init__(self, path, tox, friend_number, size, file_number):
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full_path = path + '.tmp'
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super().__init__(full_path, tox, friend_number, size, file_number)
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if size > self.MAX_AVATAR_SIZE:
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self.send_control(TOX_FILE_CONTROL['CANCEL'])
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self._file.close()
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remove(full_path)
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elif not size:
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self.send_control(TOX_FILE_CONTROL['CANCEL'])
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self._file.close()
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remove(full_path)
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elif exists(path):
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hash = self.get_file_id()
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with open(path, 'rb') as fl:
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data = fl.read()
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existing_hash = Tox.hash(data)
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if hash == existing_hash:
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self.send_control(TOX_FILE_CONTROL['CANCEL'])
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self._file.close()
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remove(full_path)
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else:
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self.send_control(TOX_FILE_CONTROL['RESUME'])
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else:
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self.send_control(TOX_FILE_CONTROL['RESUME'])
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def write_chunk(self, position, data):
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if data is None:
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avatar_path = self._path[:-4]
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if exists(avatar_path):
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chdir(dirname(avatar_path))
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remove(avatar_path)
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rename(self._path, avatar_path)
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super().write_chunk(position, data)
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