toxygen/toxygen/file_transfers/file_transfers_handler.py

299 lines
14 KiB
Python

from messenger.messages import *
from ui.contact_items import *
import utils.util as util
from common.tox_save import ToxSave
class FileTransfersHandler(ToxSave):
def __init__(self, tox, settings, contact_provider, file_transfers_message_service, profile):
super().__init__(tox)
self._settings = settings
self._contact_provider = contact_provider
self._file_transfers_message_service = file_transfers_message_service
self._file_transfers = {}
# key = (friend number, file number), value - transfer instance
self._paused_file_transfers = dict(settings['paused_file_transfers'])
# key - file id, value: [path, friend number, is incoming, start position]
self._insert_inline_before = {}
# key = (friend number, file number), value - message id
profile.avatar_changed_event.add_callback(self._send_avatar_to_contacts)
def __del__(self):
self._settings['paused_file_transfers'] = self._paused_file_transfers if self._settings['resend_files'] else {}
self._settings.save()
# -----------------------------------------------------------------------------------------------------------------
# File transfers support
# -----------------------------------------------------------------------------------------------------------------
def incoming_file_transfer(self, friend_number, file_number, size, file_name):
"""
New transfer
:param friend_number: number of friend who sent file
:param file_number: file number
:param size: file size in bytes
:param file_name: file name without path
"""
friend = self._get_friend_by_number(friend_number)
auto = self._settings['allow_auto_accept'] and friend.tox_id in self._settings['auto_accept_from_friends']
inline = is_inline(file_name) and self._settings['allow_inline']
file_id = self._tox.file_get_file_id(friend_number, file_number)
accepted = True
if file_id in self._paused_file_transfers:
(path, ft_friend_number, is_incoming, start_position) = self._paused_file_transfers[file_id]
pos = start_position if os.path.exists(path) else 0
if pos >= size:
self._tox.file_control(friend_number, file_number, TOX_FILE_CONTROL['CANCEL'])
return
self._tox.file_seek(friend_number, file_number, pos)
self._file_transfers_message_service.add_incoming_transfer_message(
friend, accepted, size, file_name, file_number)
self.accept_transfer(path, friend_number, file_number, size, False, pos)
elif inline and size < 1024 * 1024:
self._file_transfers_message_service.add_incoming_transfer_message(
friend, accepted, size, file_name, file_number)
self.accept_transfer('', friend_number, file_number, size, True)
elif auto:
path = self._settings['auto_accept_path'] or util.curr_directory()
self._file_transfers_message_service.add_incoming_transfer_message(
friend, accepted, size, file_name, file_number)
self.accept_transfer(path + '/' + file_name, friend_number, file_number, size)
else:
accepted = False
self._file_transfers_message_service.add_incoming_transfer_message(
friend, accepted, size, file_name, file_number)
def cancel_transfer(self, friend_number, file_number, already_cancelled=False):
"""
Stop transfer
:param friend_number: number of friend
:param file_number: file number
:param already_cancelled: was cancelled by friend
"""
if (friend_number, file_number) in self._file_transfers:
tr = self._file_transfers[(friend_number, file_number)]
if not already_cancelled:
tr.cancel()
else:
tr.cancelled()
if (friend_number, file_number) in self._file_transfers:
del tr
del self._file_transfers[(friend_number, file_number)]
elif not already_cancelled:
self._tox.file_control(friend_number, file_number, TOX_FILE_CONTROL['CANCEL'])
def cancel_not_started_transfer(self, friend_number, message_id):
self._get_friend_by_number(friend_number).delete_one_unsent_file(message_id)
def pause_transfer(self, friend_number, file_number, by_friend=False):
"""
Pause transfer with specified data
"""
tr = self._file_transfers[(friend_number, file_number)]
tr.pause(by_friend)
def resume_transfer(self, friend_number, file_number, by_friend=False):
"""
Resume transfer with specified data
"""
tr = self._file_transfers[(friend_number, file_number)]
if by_friend:
tr.state = FILE_TRANSFER_STATE['RUNNING']
else:
tr.send_control(TOX_FILE_CONTROL['RESUME'])
def accept_transfer(self, path, friend_number, file_number, size, inline=False, from_position=0):
"""
:param path: path for saving
:param friend_number: friend number
:param file_number: file number
:param size: file size
:param inline: is inline image
:param from_position: position for start
"""
path = self._generate_valid_path(path, from_position)
friend = self._get_friend_by_number(friend_number)
if not inline:
rt = ReceiveTransfer(path, self._tox, friend_number, size, file_number, from_position)
else:
rt = ReceiveToBuffer(self._tox, friend_number, size, file_number)
rt.set_transfer_finished_handler(self.transfer_finished)
message = friend.get_message(lambda m: m.type == MESSAGE_TYPE['FILE_TRANSFER']
and m.state in (FILE_TRANSFER_STATE['INCOMING_NOT_STARTED'],
FILE_TRANSFER_STATE['RUNNING'])
and m.file_number == file_number)
rt.set_state_changed_handler(message.transfer_updated)
self._file_transfers[(friend_number, file_number)] = rt
rt.send_control(TOX_FILE_CONTROL['RESUME'])
if inline:
self._insert_inline_before[(friend_number, file_number)] = message.message_id
def send_screenshot(self, data, friend_number):
"""
Send screenshot
:param data: raw data - png format
:param friend_number: friend number
"""
self.send_inline(data, 'toxygen_inline.png', friend_number)
def send_sticker(self, path, friend_number):
with open(path, 'rb') as fl:
data = fl.read()
self.send_inline(data, 'sticker.png', friend_number)
def send_inline(self, data, file_name, friend_number, is_resend=False):
friend = self._get_friend_by_number(friend_number)
if friend.status is None and not is_resend:
self._file_transfers_message_service.add_unsent_file_message(friend, file_name, data)
return
elif friend.status is None and is_resend:
raise RuntimeError()
st = SendFromBuffer(self._tox, friend.number, data, file_name)
self._send_file_add_set_handlers(st, friend, file_name, True)
def send_file(self, path, friend_number, is_resend=False, file_id=None):
"""
Send file to current active friend
:param path: file path
:param friend_number: friend_number
:param is_resend: is 'offline' message
:param file_id: file id of transfer
"""
friend = self._get_friend_by_number(friend_number)
if friend.status is None and not is_resend:
self._file_transfers_message_service.add_unsent_file_message(friend, path, None)
return
elif friend.status is None and is_resend:
print('Error in sending')
raise RuntimeError()
st = SendTransfer(path, self._tox, friend_number, TOX_FILE_KIND['DATA'], file_id)
file_name = os.path.basename(path)
self._send_file_add_set_handlers(st, friend, file_name)
def incoming_chunk(self, friend_number, file_number, position, data):
"""
Incoming chunk
"""
self._file_transfers[(friend_number, file_number)].write_chunk(position, data)
def outgoing_chunk(self, friend_number, file_number, position, size):
"""
Outgoing chunk
"""
self._file_transfers[(friend_number, file_number)].send_chunk(position, size)
def transfer_finished(self, friend_number, file_number):
transfer = self._file_transfers[(friend_number, file_number)]
t = type(transfer)
if t is ReceiveAvatar:
self._get_friend_by_number(friend_number).load_avatar()
elif t is ReceiveToBuffer or (t is SendFromBuffer and self._settings['allow_inline']): # inline image
print('inline')
inline = InlineImageMessage(transfer.data)
message_id = self._insert_inline_before[(friend_number, file_number)]
del self._insert_inline_before[(friend_number, file_number)]
index = self._get_friend_by_number(friend_number).insert_inline(message_id, inline)
self._file_transfers_message_service.add_inline_message(transfer, index)
del self._file_transfers[(friend_number, file_number)]
def send_files(self, friend_number):
friend = self._get_friend_by_number(friend_number)
friend.remove_invalid_unsent_files()
files = friend.get_unsent_files()
try:
for fl in files:
data, path = fl.data, fl.path
if data is not None:
self.send_inline(data, path, friend_number, True)
else:
self.send_file(path, friend_number, True)
friend.clear_unsent_files()
for key in list(self._paused_file_transfers.keys()):
(path, ft_friend_number, is_incoming, start_position) = self._paused_file_transfers[key]
if not os.path.exists(path):
del self._paused_file_transfers[key]
elif ft_friend_number == friend_number and not is_incoming:
self.send_file(path, friend_number, True, key)
del self._paused_file_transfers[key]
except Exception as ex:
print('Exception in file sending: ' + str(ex))
def friend_exit(self, friend_number):
for friend_num, file_num in list(self._file_transfers.keys()):
if friend_num == friend_number:
ft = self._file_transfers[(friend_num, file_num)]
if type(ft) is SendTransfer:
self._paused_file_transfers[ft.file_id] = [ft.path, friend_num, False, -1]
elif type(ft) is ReceiveTransfer and ft.state != FILE_TRANSFER_STATE['INCOMING_NOT_STARTED']:
self._paused_file_transfers[ft.file_id] = [ft.path, friend_num, True, ft.total_size()]
self.cancel_transfer(friend_num, file_num, True)
# -----------------------------------------------------------------------------------------------------------------
# Avatars support
# -----------------------------------------------------------------------------------------------------------------
def send_avatar(self, friend_number, avatar_path=None):
"""
:param friend_number: number of friend who should get new avatar
:param avatar_path: path to avatar or None if reset
"""
sa = SendAvatar(avatar_path, self._tox, friend_number)
self._file_transfers[(friend_number, sa.file_number)] = sa
def incoming_avatar(self, friend_number, file_number, size):
"""
Friend changed avatar
:param friend_number: friend number
:param file_number: file number
:param size: size of avatar or 0 (default avatar)
"""
friend = self._get_friend_by_number(friend_number)
ra = ReceiveAvatar(friend.get_contact_avatar_path(), self._tox, friend_number, size, file_number)
if ra.state != FILE_TRANSFER_STATE['CANCELLED']:
self._file_transfers[(friend_number, file_number)] = ra
ra.set_transfer_finished_handler(self.transfer_finished)
elif not size:
friend.reset_avatar(self._settings['identicons'])
def _send_avatar_to_contacts(self):
friends = self._get_all_friends()
for friend in friends:
self.send_avatar(friend.number)
# -----------------------------------------------------------------------------------------------------------------
# Private methods
# -----------------------------------------------------------------------------------------------------------------
def _get_friend_by_number(self, friend_number):
return self._contact_provider.get_friend_by_number(friend_number)
def _get_all_friends(self):
return self._contact_provider.get_all_friends()
def _send_file_add_set_handlers(self, st, friend, file_name, inline=False):
st.set_transfer_finished_handler(self.transfer_finished)
file_number = st.get_file_number()
self._file_transfers[(friend.number, file_number)] = st
tm = self._file_transfers_message_service.add_outgoing_transfer_message(friend, st.size, file_name, file_number)
st.set_state_changed_handler(tm.transfer_updated)
if inline:
self._insert_inline_before[(friend.number, file_number)] = tm.message_id
@staticmethod
def _generate_valid_path(path, from_position):
path, file_name = os.path.split(path)
new_file_name, i = file_name, 1
if not from_position:
while os.path.isfile(path + '/' + new_file_name): # file with same name already exists
if '.' in file_name: # has extension
d = file_name.rindex('.')
else: # no extension
d = len(file_name)
new_file_name = file_name[:d] + ' ({})'.format(i) + file_name[d:]
i += 1
path = os.path.join(path, new_file_name)
return path