/
FileTransferSession.py
858 lines (711 loc) · 38.1 KB
/
FileTransferSession.py
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# Copyright (C) 2009-2011 AG Projects. See LICENSE for details.
#
import hashlib
import datetime
from dateutil.tz import tzlocal
import os
import re
import time
import unicodedata
import uuid
from application.notification import NotificationCenter, IObserver
from application.python import Null, limit
from application.system import makedirs
from sipsimple.account import Account, BonjourAccount
from sipsimple.configuration.settings import SIPSimpleSettings
from sipsimple.core import ToHeader, SIPURI
from sipsimple.lookup import DNSLookup
from sipsimple.session import Session
from sipsimple.streams import FileTransferStream, FileSelector
from sipsimple.threading import run_in_thread
from sipsimple.threading.green import run_in_green_thread
from sipsimple.util import TimestampedNotificationData, Timestamp
from threading import Event
from twisted.internet import reactor
from twisted.internet.error import ConnectionLost
from zope.interface import implements
from BlinkLogger import BlinkLogger
from HistoryManager import FileTransferHistory, ChatHistory
from MediaStream import *
from util import *
from Foundation import NSDownloadsDirectory, NSSearchPathForDirectoriesInDomains, NSUserDomainMask
def format_duration(t):
s = ""
if t.days > 0:
s += "%d days, " % t.days
s += "%02d:%02d:%02d" % (t.seconds / 3600, (t.seconds / 60) % 60, t.seconds % 60)
return s
class FileTransferInfo(object):
def __init__(self, transfer_id=None, direction=None, local_uri=None, remote_uri=None, file_path=None, bytes_transfered=0, file_size=0, status=None):
self.transfer_id = transfer_id
self.direction = direction
self.local_uri = local_uri
self.remote_uri = remote_uri
self.file_path = file_path
self.bytes_transfered = bytes_transfered
self.file_size = file_size
self.status = status
class FileTransfer(object):
implements(IObserver)
session = None
stream = None
file_selector = None
file_pos = 0
status = ""
fail_reason = None
end_session_when_done = False
transfer_id = None
remote_identity = None
target_uri = None
started = False
finished_transfer = False
transfer_rate = None
last_rate_pos = 0
last_rate_time = 0
rate_history = None
ft_info = None
@property
def file_name(self):
name = self.file_selector and os.path.basename(self.file_selector.name or 'Unknown')
if isinstance(name, str):
return name.decode('utf-8')
return name
@property
def file_size(self):
return self.file_selector and self.file_selector.size
@property
def file_type(self):
return self.file_selector and self.file_selector.type
@property
def progress(self):
if not self.file_pos or not self.file_size:
return 0.0
return float(self.file_pos) / self.file_size
@staticmethod
def filename_generator(name):
yield name
from itertools import count
prefix, extension = os.path.splitext(name)
for x in count(1):
yield "%s-%d%s" % (prefix, x, extension)
def format_progress(self):
if not self.file_size:
return ''
if self.transfer_rate is not None:
if self.transfer_rate == 0:
status = "%s of %s (stalled)" % (format_size(self.file_pos, 1024), format_size(self.file_size, 1024))
else:
eta = (self.file_size - self.file_pos) / self.transfer_rate
if eta < 60:
time_left = "less than 1 minute"
elif eta < 60*60:
time_left = "%i minutes left" % (eta/60)
else:
time_left = "%s left" % format_duration(datetime.timedelta(seconds=eta))
status = "%s of %s (%s/s) %s %s" % (format_size(self.file_pos, 1024), format_size(self.file_size, 1024), format_size(self.transfer_rate, bits=True), unichr(0x2014), time_left)
else:
status = "%s of %s" % (format_size(self.file_pos, 1024), format_size(self.file_size, 1024))
return status
def update_transfer_rate(self):
if self.last_rate_time > 0:
if time.time() - self.last_rate_time >= 1:
dt = time.time() - self.last_rate_time
db = self.file_pos - self.last_rate_pos
transfer_rate = int(db / dt)
self.rate_history.append(transfer_rate)
while len(self.rate_history) > 5:
del self.rate_history[0]
self.last_rate_time = time.time()
self.last_rate_pos = self.file_pos
self.transfer_rate = sum(self.rate_history) / len(self.rate_history)
else:
self.last_rate_time = time.time()
self.last_rate_pos = self.file_pos
self.rate_history = []
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferSpeedDidUpdate", sender=self, data=TimestampedNotificationData())
@run_in_green_thread
def add_to_history(self):
FileTransferHistory().add_transfer(transfer_id=self.ft_info.transfer_id, direction=self.ft_info.direction, local_uri=self.ft_info.local_uri, remote_uri=self.ft_info.remote_uri, file_path=self.ft_info.file_path, bytes_transfered=self.ft_info.bytes_transfered, file_size=self.ft_info.file_size or 0, status=self.ft_info.status)
message = "<h3>%s File Transfer</h3>" % self.ft_info.direction.capitalize()
message += "<p>%s (%s)" % (self.ft_info.file_path, format_size(self.ft_info.file_size or 0))
media_type = 'file-transfer'
local_uri = self.ft_info.local_uri
remote_uri = self.ft_info.remote_uri
direction = self.ft_info.direction
status = 'delivered' if self.ft_info.status == 'completed' else 'failed'
cpim_from = self.ft_info.remote_uri
cpim_to = self.ft_info.remote_uri
timestamp = str(Timestamp(datetime.datetime.now(tzlocal())))
ChatHistory().add_message(self.ft_info.transfer_id, media_type, local_uri, remote_uri, direction, cpim_from, cpim_to, timestamp, message, "html", "0", status)
def end(self):
if self.session:
if self.end_session_when_done or self.session.streams == [self.stream] or self.session.proposed_streams == [self.stream]:
self.session.end()
else:
self.session.remove_stream(self.stream)
@allocate_autorelease_pool
def handle_notification(self, notification):
handler = getattr(self, '_NH_%s' % notification.name, Null)
handler(notification.sender, notification.data)
def _NH_SIPSessionWillStart(self, sender, data):
self.status = "Starting File Transfer..."
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferUpdate", sender=self, data=TimestampedNotificationData())
def log_info(self, text):
if self.session:
BlinkLogger().log_info(u"[Session with %s] %s" % (format_identity_to_string(self.session.remote_identity), text))
class IncomingFileTransferHandler(FileTransfer):
def __init__(self, session, stream):
self.account = session.account
self.end_session_when_done = True
self.error = False
self.file_selector = stream.file_selector
self.finished_transfer = False
self.hash = hashlib.sha1()
self.remote_identity = format_identity_to_string(session.remote_identity)
self.session = session
self.session_ended = False
self.started = False
self.stream = stream
self.target_uri = session.remote_identity.uri
self.timer = None
self.transfer_id = str(uuid.uuid1())
@property
def target_text(self):
return "From " + self.remote_identity
@property
def progress_text(self):
if self.fail_reason:
return u"%s of %s %s %s" % (format_size(self.file_pos), format_size(self.file_size), unichr(0x2014), self.fail_reason)
else:
return self.status
def start(self):
notification_center = NotificationCenter()
settings = SIPSimpleSettings()
download_folder = unicodedata.normalize('NFC', NSSearchPathForDirectoriesInDomains(NSDownloadsDirectory, NSUserDomainMask, True)[0])
for name in self.filename_generator(os.path.join(download_folder, self.file_name)):
if not os.path.exists(name) and not os.path.exists(name+".download"):
self.file_path = name + '.download'
break
self.ft_info = FileTransferInfo(transfer_id=self.transfer_id, direction='incoming', local_uri=format_identity_to_string(self.account) if self.account is not BonjourAccount() else 'bonjour' , file_size=self.file_size, remote_uri=self.remote_identity, file_path=self.file_path)
BlinkLogger().log_info(u"Will write file to %s" % self.file_path)
self.file_selector.fd = open(self.file_path, "w+")
self.ft_info.status = "preparing"
self.status = "Accepting File Transfer..."
notification_center.add_observer(self, sender=self)
notification_center.add_observer(self, sender=self.session)
notification_center.add_observer(self, sender=self.stream)
BlinkLogger().log_info("Initiating Incoming File Transfer")
notification_center.post_notification("BlinkFileTransferInitializing", self, data=TimestampedNotificationData())
notification_center.post_notification("BlinkFileTransferInitiated", self, data=TimestampedNotificationData())
def cancel(self):
if not self.finished_transfer:
self.fail_reason = "Interrupted" if self.started else "Cancelled"
self.ft_info.status = "interrupted" if self.started else "cancelled"
self.end()
@run_in_thread('file-transfer')
def write_chunk(self, data):
notification_center = NotificationCenter()
if data is not None:
try:
self.file_selector.fd.write(data)
except EnvironmentError, e:
notification_center.post_notification('IncomingFileTransferHandlerGotError', sender=self, data=TimestampedNotificationData(error=str(e)))
else:
self.hash.update(data)
else:
self.file_selector.fd.close()
if self.error:
notification_center.post_notification('IncomingFileTransferHandlerDidFail', sender=self, data=TimestampedNotificationData())
else:
notification_center.post_notification('IncomingFileTransferHandlerDidEnd', sender=self, data=TimestampedNotificationData())
def _NH_SIPSessionDidFail(self, sender, data):
self.log_info("File Transfer Session failed: %s" % (data.reason or data.failure_reason))
self.fail_reason = "%s (%s)" % (data.reason or data.failure_reason, data.originator)
self.status = self.fail_reason
self.ft_info.status = "failed"
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
def _NH_SIPSessionDidEnd(self, sender, data):
self.log_info(u"File Transfer Session ended by %s" % data.originator)
self.session_ended = True
if self.timer is not None and self.timer.active():
self.timer.cancel()
self.timer = None
def _NH_MediaStreamDidStart(self, sender, data):
self.log_info("Receiving File...")
self.status = format_size(self.file_pos, 1024)
self.ft_info.status = "transfering"
self.started = True
self.start_time = datetime.datetime.now()
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferDidStart", sender=self, data=TimestampedNotificationData())
def _NH_MediaStreamDidFail(self, sender, data):
self.log_info("Error while handling file transfer: %s" % data.reason)
# TODO: connection should always be cleaned correctly
if not isinstance(data.failure.value, ConnectionLost):
self.error = True
self.fail_reason = data.reason
# The session will end by itself
def _NH_MediaStreamDidEnd(self, sender, data):
# Mark end of write operations
self.write_chunk(None)
def _NH_FileTransferStreamGotChunk(self, sender, data):
self.file_pos = data.transferred_bytes
self.file_selector.size = data.file_size # just in case the size was not specified in the file selector -Dan
self.write_chunk(data.content)
self.update_transfer_rate()
self.status = self.format_progress()
self.ft_info.status = "transfering"
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferUpdate", sender=self, data=TimestampedNotificationData())
def _NH_FileTransferStreamDidFinish(self, sender, data):
self.finished_transfer = True
if self.timer is None:
self.timer = reactor.callLater(1, self.end)
def _NH_IncomingFileTransferHandlerGotError(self, sender, data):
self.log_info("Error while handling file transfer: %s" % data.error)
self.error = True
self.fail_reason = data.error
if not self.session_ended and self.timer is None:
self.timer = reactor.callLater(1, self.end)
def _NH_IncomingFileTransferHandlerDidEnd(self, sender, data):
notification_center = NotificationCenter()
if not self.finished_transfer:
self.log_info(u"Removing incomplete file %s" % self.file_path)
os.remove(self.file_path)
self.fail_reason = "Interrupted"
else:
local_hash = 'sha1:' + ':'.join(re.findall(r'..', self.hash.hexdigest()))
remote_hash = self.file_selector.hash.lower()
if local_hash == remote_hash:
oname = self.file_path
self.file_path = self.file_path[:-len(".download")]
self.log_info(u"Renaming downloaded file to %s" % self.file_path)
os.rename(oname, self.file_path)
else:
self.error = True
self.fail_reason = "File hash mismatch"
self.log_info(u"Removing corrupted file %s" % self.file_path)
os.remove(self.file_path)
self.log_info("Incoming File Transfer ended (%i of %i bytes transferred)" % (self.file_pos, self.file_size))
self.end_time = datetime.datetime.now()
if self.finished_transfer and not self.error:
self.status = "Completed in %s %s %s" % (format_duration(self.end_time-self.start_time), unichr(0x2014), format_size(self.file_size))
self.ft_info.status = "completed"
self.ft_info.bytes_transfered = self.file_size
notification_center.post_notification("BlinkFileTransferDidEnd", sender=self, data=TimestampedNotificationData(file_path=self.file_path))
else:
self.status = self.fail_reason
self.ft_info.status = "failed"
self.ft_info.bytes_transfered = self.file_pos
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
def _NH_IncomingFileTransferHandlerDidFail(self, sender, data):
#self.end_time = datetime.datetime.now()
self.status = self.fail_reason
self.ft_info.status = "failed"
self.ft_info.bytes_transfered = self.file_pos
os.remove(self.file_path)
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
def _NH_BlinkFileTransferDidEnd(self, sender, data):
notification_center = NotificationCenter()
notification_center.remove_observer(self, sender=self)
notification_center.remove_observer(self, sender=self.stream)
notification_center.remove_observer(self, sender=self.session)
self.session = None
self.stream = None
self.transfer_rate = None
self.add_to_history()
_NH_BlinkFileTransferDidFail = _NH_BlinkFileTransferDidEnd
class OutgoingPushFileTransferHandler(FileTransfer):
# outgoing transfer status: pending -> preparing (calculating checksum) -> proposing -> transfering|failed|cancelled -> completed|interrupted
def __init__(self, account, target_uri, file_path):
self.account = account
self.end_session_when_done = True
self.file_path = file_path
self.file_selector = None
self.finished_transfer = False
self.interrupted = False
self.remote_identity = format_identity_to_string(target_uri)
self.session = None
self.stream = None
self.started = False
self.stop_event = Event()
self.target_uri = target_uri
self.transfer_id = str(uuid.uuid1())
@property
def target_text(self):
return "To "+self.remote_identity
@property
def progress_text(self):
if self.fail_reason:
return self.fail_reason
else:
return self.status
def retry(self):
self.fail_reason = None
self.file_selector = None
self.file_pos = 0
self.finished_transfer = False
self.interrupted = False
self.last_rate_pos = 0
self.last_rate_time = 0
self.session = None
self.stream = None
self.started = False
self.transfer_rate = None
self.start(restart=True)
def start(self, restart=False):
self.ft_info = FileTransferInfo(transfer_id=self.transfer_id, direction='outgoing', file_size=self.file_size, local_uri=format_identity_to_string(self.account) if self.account is not BonjourAccount() else 'bonjour', remote_uri=self.remote_identity, file_path=self.file_path)
self.ft_info.status = "pending"
self.status = "Pending"
notification_center = NotificationCenter()
if restart:
notification_center.post_notification("BlinkFileTransferRestarting", self, data=TimestampedNotificationData())
else:
notification_center.post_notification("BlinkFileTransferInitializing", self, data=TimestampedNotificationData())
BlinkLogger().log_info(u"Computing checksum for file %s" % os.path.basename(self.file_path))
self.stop_event.clear()
self.initiate_file_transfer()
@run_in_thread('file-transfer')
def initiate_file_transfer(self):
notification_center = NotificationCenter()
notification_center.add_observer(self, sender=self)
self.file_selector = FileSelector.for_file(self.file_path.encode('utf-8'), hash=None)
self.ft_info.file_size = self.file_size
# compute the file hash first
self.ft_info.status = "preparing"
self.status = "Computing checksum..."
hash = hashlib.sha1()
pos = progress = 0
chunk_size = limit(self.file_selector.size/100, min=65536, max=1048576)
notification_center.post_notification('BlinkFileTransferHashUpdate', sender=self, data=TimestampedNotificationData(progress=0))
while not self.stop_event.isSet():
content = self.file_selector.fd.read(chunk_size)
if not content:
break
hash.update(content)
pos += len(content)
old_progress, progress = progress, int(float(pos)/self.file_selector.size*100)
if old_progress != progress:
notification_center.post_notification('BlinkFileTransferHashUpdate', sender=self, data=TimestampedNotificationData(progress=progress))
else:
notification_center.post_notification('BlinkFileTransferDidNotComputeHash', sender=self)
return
self.file_selector.fd.seek(0)
self.file_selector.hash = hash
notification_center.post_notification('BlinkFileTransferDidComputeHash', sender=self, data=TimestampedNotificationData())
def cancel(self):
if not self.finished_transfer:
self.fail_reason = "Interrupted" if self.started else "Cancelled"
self.ft_info.status = "interrupted" if self.started else "cancelled"
self.interrupted = True
self.stop_event.set()
if self.session is not None:
self.end()
def _NH_DNSLookupDidSucceed(self, sender, data):
notification_center = NotificationCenter()
notification_center.remove_observer(self, sender=sender)
if self.interrupted:
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
return
self.session.connect(ToHeader(self.target_uri), data.result, [self.stream])
def _NH_DNSLookupDidFail(self, sender, data):
notification_center = NotificationCenter()
notification_center.remove_observer(self, sender=sender)
self.log_info("DNS Lookup for SIP routes failed: '%s'" % data.error)
self.fail_reason = "DNS Lookup failed"
self.status = self.fail_reason
self.ft_info.status = "failed"
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
def _NH_MediaStreamDidStart(self, sender, data):
self.log_info("Outgoing Push File Transfer started")
self.status = "%s of %s" % (format_size(self.file_pos, 1024), format_size(self.file_size, 1024))
self.ft_info.status = "transfering"
self.started = True
self.start_time = datetime.datetime.now()
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferDidStart", sender=self, data=TimestampedNotificationData())
def _NH_MediaStreamDidFail(self, sender, data):
self.log_info("Error while handling file transfer: %s" % data.reason)
self.error = True
self.fail_reason = data.reason
# The session will end by itself
def _NH_SIPSessionDidFail(self, sender, data):
self.log_info("File Transfer Session failed: %s" % (data.reason or data.failure_reason))
self.fail_reason = "%s (%s)" % (data.reason or data.failure_reason, data.originator)
self.status = self.fail_reason
self.ft_info.status = "failed"
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
self.file_selector.fd.close()
self.file_selector = None
def _NH_SIPSessionDidEnd(self, sender, data):
self.log_info(u"File Transfer Session ended by %s" % data.originator)
notification_center = NotificationCenter()
self.end_time = datetime.datetime.now()
if not self.finished_transfer:
self.fail_reason = "Interrupted"
self.ft_info.status = "failed"
self.ft_info.bytes_transfered = self.file_pos
self.status = "%s %s %s" % (str(format_size(self.file_pos, 1024)), unichr(0x2014), self.fail_reason)
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
else:
self.ft_info.status = "completed"
self.ft_info.bytes_transfered=self.file_size
self.status = "Completed in %s %s %s" % (format_duration(self.end_time-self.start_time), unichr(0x2014), format_size(self.file_size))
notification_center.post_notification("BlinkFileTransferDidEnd", sender=self, data=TimestampedNotificationData(file_path=self.file_path))
self.file_selector.fd.close()
self.file_selector = None
def _NH_FileTransferStreamDidDeliverChunk(self, sender, data):
self.file_pos = data.transferred_bytes
self.update_transfer_rate()
self.status = self.format_progress()
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferUpdate", sender=self, data=TimestampedNotificationData())
def _NH_FileTransferStreamDidFinish(self, sender, data):
self.finished_transfer = True
self.end()
def _NH_BlinkFileTransferDidComputeHash(self, sender, data):
notification_center = NotificationCenter()
settings = SIPSimpleSettings()
self.stream = FileTransferStream(self.account, self.file_selector, 'sendonly')
self.session = Session(self.account)
notification_center.add_observer(self, sender=self.session)
notification_center.add_observer(self, sender=self.stream)
self.status = "Offering File..."
self.ft_info.status = "proposing"
BlinkLogger().log_info(u"Initiating DNS Lookup of %s to %s" % (self.account, self.target_uri))
lookup = DNSLookup()
notification_center.add_observer(self, sender=lookup)
if isinstance(self.account, Account) and self.account.sip.outbound_proxy is not None:
uri = SIPURI(host=self.account.sip.outbound_proxy.host, port=self.account.sip.outbound_proxy.port, parameters={'transport': self.account.sip.outbound_proxy.transport})
BlinkLogger().log_info(u"Initiating DNS Lookup for SIP routes of %s (through proxy %s)" % (self.target_uri, uri))
elif isinstance(self.account, Account) and self.account.sip.always_use_my_proxy:
uri = SIPURI(host=self.account.id.domain)
BlinkLogger().log_info(u"Initiating DNS Lookup for SIP routes of %s (through account %s proxy)" % (self.target_uri, self.account.id))
else:
uri = self.target_uri
BlinkLogger().log_info(u"Initiating DNS Lookup for SIP routes of %s" % self.target_uri)
notification_center.post_notification("BlinkFileTransferInitiated", self, data=TimestampedNotificationData())
lookup.lookup_sip_proxy(uri, settings.sip.transport_list)
def _NH_BlinkFileTransferDidNotComputeHash(self, sender, data):
self.file_selector.fd.close()
self.file_selector = None
self.status = "Interrupted"
self.ft_info.status = "interrupted"
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
def _NH_BlinkFileTransferDidEnd(self, sender, data):
notification_center = NotificationCenter()
notification_center.remove_observer(self, sender=self)
if self.session is not None and self.stream is not None:
notification_center.remove_observer(self, sender=self.stream)
notification_center.remove_observer(self, sender=self.session)
self.session = None
self.stream = None
self.transfer_rate = None
self.add_to_history()
_NH_BlinkFileTransferDidFail = _NH_BlinkFileTransferDidEnd
class OutgoingPullFileTransferHandler(FileTransfer):
def __init__(self, account, target_uri, filename, hash):
self.account = account
self.end_session_when_done = True
self.error = False
self.file_selector = FileSelector(name=filename, hash=hash)
self.finished_transfer = False
self.hash = hashlib.sha1()
self.interrupted = False
self.remote_identity = format_identity_to_string(target_uri)
self.session = None
self.session_ended = False
self.started = False
self.stream = None
self.target_uri = SIPURI.new(target_uri)
self.timer = None
self.transfer_id = str(uuid.uuid1())
@property
def target_text(self):
return "From %s" % self.target_uri
@property
def progress_text(self):
if self.fail_reason:
return u"%s of %s %s %s" % (format_size(self.file_pos), format_size(self.file_size), unichr(0x2014), self.fail_reason)
else:
return self.status
def start(self):
notification_center = NotificationCenter()
settings = SIPSimpleSettings()
download_folder = unicodedata.normalize('NFC', NSSearchPathForDirectoriesInDomains(NSDownloadsDirectory, NSUserDomainMask, True)[0])
for name in self.filename_generator(os.path.join(download_folder, self.file_name)):
if not os.path.exists(name) and not os.path.exists(name+".download"):
self.file_path = name + '.download'
break
BlinkLogger().log_info(u"File will be written to %s" % self.file_path)
self.file_selector.fd = open(self.file_path, "w+")
self.ft_info = FileTransferInfo(transfer_id=self.transfer_id, direction='incoming', local_uri=format_identity_to_string(self.account) if self.account is not BonjourAccount() else 'bonjour' , file_size=self.file_size, remote_uri=self.remote_identity, file_path=self.file_path)
BlinkLogger().log_info("Pull File Transfer Request started %s" % self.file_path)
self.stream = FileTransferStream(self.account, self.file_selector, 'recvonly')
self.session = Session(self.account)
notification_center.add_observer(self, sender=self)
notification_center.add_observer(self, sender=self.session)
notification_center.add_observer(self, sender=self.stream)
self.status = "Requesting File..."
self.ft_info.status = "requesting"
BlinkLogger().log_info(u"Initiating DNS Lookup of %s to %s" % (self.account, self.target_uri))
lookup = DNSLookup()
notification_center.add_observer(self, sender=lookup)
if isinstance(self.account, Account) and self.account.sip.outbound_proxy is not None:
uri = SIPURI(host=self.account.sip.outbound_proxy.host, port=self.account.sip.outbound_proxy.port, parameters={'transport': self.account.sip.outbound_proxy.transport})
BlinkLogger().log_info(u"Initiating DNS Lookup for SIP routes of %s (through proxy %s)" % (self.target_uri, uri))
elif isinstance(self.account, Account) and self.account.sip.always_use_my_proxy:
uri = SIPURI(host=self.account.id.domain)
BlinkLogger().log_info(u"Initiating DNS Lookup for SIP routes of %s (through account %s proxy)" % (self.target_uri, self.account.id))
else:
uri = self.target_uri
BlinkLogger().log_info(u"Initiating DNS Lookup for SIP routes of %s" % self.target_uri)
notification_center.post_notification("BlinkFileTransferInitializing", self, data=TimestampedNotificationData())
notification_center.post_notification("BlinkFileTransferInitiated", self, data=TimestampedNotificationData())
lookup.lookup_sip_proxy(uri, settings.sip.transport_list)
def cancel(self):
if not self.finished_transfer:
self.fail_reason = "Interrupted" if self.started else "Cancelled"
self.ft_info.status = "interrupted" if self.started else "cancelled"
self.interrupted = True
if not self.session_ended:
self.end()
@run_in_thread('file-transfer')
def write_chunk(self, data):
notification_center = NotificationCenter()
if data is not None:
try:
self.file_selector.fd.write(data)
except EnvironmentError, e:
notification_center.post_notification('OutgoingPullFileTransferHandlerGotError', sender=self, data=TimestampedNotificationData(error=str(e)))
else:
self.hash.update(data)
else:
self.file_selector.fd.close()
if self.error:
notification_center.post_notification('OutgoingPullFileTransferHandlerDidFail', sender=self, data=TimestampedNotificationData())
else:
notification_center.post_notification('OutgoingPullFileTransferHandlerDidEnd', sender=self, data=TimestampedNotificationData())
def _NH_DNSLookupDidSucceed(self, sender, data):
notification_center = NotificationCenter()
notification_center.remove_observer(self, sender=sender)
if self.interrupted:
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
return
self.session.connect(ToHeader(self.target_uri), data.result, [self.stream])
def _NH_DNSLookupDidFail(self, sender, data):
notification_center = NotificationCenter()
notification_center.remove_observer(self, sender=sender)
BlinkLogger().log_info("DNS Lookup for SIP routes failed: '%s'" % data.error)
self.fail_reason = "DNS Lookup failed"
self.status = self.fail_reason
self.ft_info.status = "failed"
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
def _NH_SIPSessionDidFail(self, sender, data):
self.log_info("File Transfer Session failed: %s" % (data.reason or data.failure_reason))
self.session_ended = True
self.fail_reason = "%s (%s)" % (data.reason or data.failure_reason, data.originator)
self.status = self.fail_reason
self.ft_info.status = "failed"
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
def _NH_SIPSessionDidEnd(self, sender, data):
self.log_info("File Transfer Session ended by %s" % data.originator)
self.session_ended = True
if self.timer is not None and self.timer.active():
self.timer.cancel()
self.timer = None
def _NH_MediaStreamDidStart(self, sender, data):
self.log_info("Receiving File...")
self.status = format_size(self.file_pos, 1024)
self.ft_info.status = "transfering"
self.started = True
self.start_time = datetime.datetime.now()
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferDidStart", sender=self, data=TimestampedNotificationData())
def _NH_MediaStreamDidFail(self, sender, data):
self.log_info("Error while handling file transfer: %s" % data.reason)
# TODO: connection should always be cleaned correctly
if not isinstance(data.failure.value, ConnectionLost):
self.error = True
self.fail_reason = data.reason
# The session will end by itself
def _NH_MediaStreamDidEnd(self, sender, data):
# Mark end of write operations
self.write_chunk(None)
def _NH_FileTransferStreamGotChunk(self, sender, data):
self.file_pos = data.transferred_bytes
self.file_selector.size = data.file_size # just in case the size was not specified in the file selector -Dan
self.ft_info.file_size = self.file_size
self.write_chunk(data.content)
self.update_transfer_rate()
self.status = self.format_progress()
self.ft_info.status = "transfering"
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferUpdate", sender=self, data=TimestampedNotificationData())
def _NH_FileTransferStreamDidFinish(self, sender, data):
self.finished_transfer = True
if self.timer is None:
self.timer = reactor.callLater(1, self.end)
def _NH_OutgoingPullFileTransferHandlerGotError(self, sender, data):
self.log_info("Error while handling file transfer: %s" % data.error)
self.error = True
self.fail_reason = data.error
if not self.session_ended and self.timer is None:
self.timer = reactor.callLater(1, self.end)
def _NH_OutgoingPullFileTransferHandlerDidEnd(self, sender, data):
notification_center = NotificationCenter()
if not self.finished_transfer:
self.log_info(u"Removing incomplete file %s" % self.file_path)
os.remove(self.file_path)
self.fail_reason = "Interrupted"
else:
local_hash = 'sha1:' + ':'.join(re.findall(r'..', self.hash.hexdigest()))
remote_hash = self.file_selector.hash.lower()
if local_hash == remote_hash:
oname = self.file_path
self.file_path = self.file_path[:-len(".download")]
self.ft_info.file_path = self.file_path
self.log_info(u"Renaming downloaded file to %s" % self.file_path)
os.rename(oname, self.file_path)
else:
self.error = True
self.fail_reason = "File hash mismatch"
self.log_info(u"Removing corrupted file %s" % self.file_path)
os.remove(self.file_path)
self.log_info("Incoming File Transfer ended (%i of %i bytes transferred)" % (self.file_pos, self.file_size))
self.end_time = datetime.datetime.now()
if self.finished_transfer and not self.error:
self.status = "Completed in %s %s %s" % (format_duration(self.end_time-self.start_time), unichr(0x2014), format_size(self.file_size))
self.ft_info.status = "completed"
self.ft_info.bytes_transfered = self.file_size
notification_center.post_notification("BlinkFileTransferDidEnd", sender=self, data=TimestampedNotificationData(file_path=self.file_path))
else:
self.status = self.fail_reason
self.ft_info.status = "failed"
self.ft_info.bytes_transfered = self.file_pos
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
def _NH_OutgoingPullFileTransferHandlerDidFail(self, sender, data):
self.end_time = datetime.datetime.now()
self.status = self.fail_reason
self.ft_info.status = "failed"
self.ft_info.bytes_transfered = self.file_pos
os.remove(self.file_path)
notification_center = NotificationCenter()
notification_center.post_notification("BlinkFileTransferDidFail", sender=self, data=TimestampedNotificationData())
def _NH_BlinkFileTransferDidEnd(self, sender, data):
notification_center = NotificationCenter()
notification_center.remove_observer(self, sender=self)
notification_center.remove_observer(self, sender=self.stream)
notification_center.remove_observer(self, sender=self.session)
self.session = None
self.stream = None
self.transfer_rate = None
self.add_to_history()
_NH_BlinkFileTransferDidFail = _NH_BlinkFileTransferDidEnd