diff --git a/sylk/applications/webrtcgateway/__init__.py b/sylk/applications/webrtcgateway/__init__.py index b37f531..304e796 100644 --- a/sylk/applications/webrtcgateway/__init__.py +++ b/sylk/applications/webrtcgateway/__init__.py @@ -1,689 +1,677 @@ import base64 import json import hashlib import random import os import secrets import time import uuid import urllib.parse import errno from application.notification import IObserver, NotificationCenter, NotificationData from application.python import Null from application.system import unlink from sipsimple.configuration.settings import SIPSimpleSettings from sipsimple.core import SIPURI, FromHeader, ToHeader, Message, RouteHeader, Header, Route, Request from sipsimple.lookup import DNSLookup, DNSLookupError from sipsimple.payloads.imdn import IMDNDocument from sipsimple.streams.msrp.chat import CPIMPayload, CPIMParserError, Message as SIPMessage from sipsimple.threading import run_in_twisted_thread, run_in_thread from sipsimple.threading.green import run_in_green_thread from sipsimple.util import ISOTimestamp from twisted.internet import defer, reactor from zope.interface import implementer from sylk.applications import SylkApplication from sylk.configuration import SIPConfig from sylk.session import IllegalStateError from sylk.web import server from .configuration import GeneralConfig from .datatypes import FileTransferData from .logger import log from .models import sylkrtc from .storage import TokenStorage, MessageStorage from .web import WebHandler, AdminWebHandler from . import push @implementer(IObserver) class WebRTCGatewayApplication(SylkApplication): def __init__(self): self.web_handler = WebHandler() self.admin_web_handler = AdminWebHandler() def start(self): self.web_handler.start() self.admin_web_handler.start() # Load tokens from the storage token_storage = TokenStorage() token_storage.load() # Setup message storage message_storage = MessageStorage() message_storage.load() self.clean_filetransfers() def stop(self): self.web_handler.stop() self.admin_web_handler.stop() @run_in_thread('file-io') def clean_filetransfers(self): settings = SIPSimpleSettings() top = settings.file_transfer.directory.normalized removed_dirs = removed_files = 0 for root, dirs, files in os.walk(top, topdown=False): for name in files: file = os.path.join(root, name) statinfo = os.stat(file) current_time = time.time() remove_after_days = GeneralConfig.filetransfer_expire_days if (statinfo.st_size >= 1024 * 1024 * 50 and statinfo.st_mtime < current_time - 86400 * remove_after_days): log.info(f"[housekeeper] Removing expired filetransfer file: {file}") removed_files += 1 unlink(file) elif statinfo.st_mtime < current_time - 86400 * 2 * remove_after_days: log.info(f"[housekeeper] Removing expired file transfer file: {file}") removed_files += 1 unlink(file) for name in dirs: dir = os.path.join(root, name) try: os.rmdir(dir) except OSError as ex: if ex.errno == errno.ENOTEMPTY: pass else: removed_dirs += 1 log.info(f"[housekeeper] Removing expired file transfer dir {dir}") log.info(f"[housekeeper] Removed {removed_files} files, {removed_dirs} directories") reactor.callLater(3600, self.clean_filetransfers) def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def incoming_session(self, session): # TODO: handle diverted sessions? log.info('New incoming session {session.call_id} from sip:{uri.user}@{uri.host}'.format(session=session, uri=session.remote_identity.uri)) transfer_streams = [stream for stream in session.proposed_streams if stream.type == 'file-transfer'] if not transfer_streams: log.info(u'Session rejected: invalid media') session.reject(488) return transfer_stream = transfer_streams[0] if transfer_stream.direction == 'sendonly': # file transfer 'pull' log.info('Session rejected: requested file not found') session.reject(404) return sender = f'{session.remote_identity.uri.user}@{session.remote_identity.uri.host}' receiver = f'{session.local_identity.uri.user}@{session.local_identity.uri.host}' file_selector = transfer_stream.file_selector transfer_data = FileTransferData(file_selector.name, file_selector.size, file_selector.type, str(uuid.uuid4()), sender, receiver) session.transfer_data = transfer_data message_storage = MessageStorage() account = defer.maybeDeferred(message_storage.get_account, receiver) account.addCallback(lambda result: self._check_receiver_session(result)) sender_account = defer.maybeDeferred(message_storage.get_account, sender) sender_account.addCallback(lambda result: self._check_sender_session(result, session)) d1 = defer.DeferredList([account, sender_account], consumeErrors=True) d1.addCallback(lambda result: self._handle_lookup_result(result, session, transfer_stream)) NotificationCenter().add_observer(self, sender=session) def _check_receiver_session(self, account): if account is None: raise Exception("Receiver account for filetransfer not found") def _check_sender_session(self, account, session): if account is None: session.transfer_data.update_path_for_receiver() raise Exception("Sender account for filetransfer not found") def _handle_lookup_result(self, result, session, stream): reject_session = all([success is not True for (success, value) in result]) if reject_session: self._reject_session(session, "Sender and receiver accounts for filetransfer were not found") return stream.handler.save_directory = session.transfer_data.path log.info('File transfer from {sender.uri} to {receiver.uri} will be saved to {path}/{filename}'.format(**session.transfer_data.__dict__)) self._accept_session(session, [stream]) def _reject_session(self, session, error): log.warning(f'File transfer rejected: {error}') session.reject(404) def _accept_session(self, session, streams): try: session.accept(streams) except IllegalStateError: session.reject(500) def incoming_subscription(self, request, data): request.reject(405) def incoming_referral(self, request, data): request.reject(405) def incoming_message(self, message_request, data): content_type = data.headers.get('Content-Type', Null).content_type from_header = data.headers.get('From', Null) to_header = data.headers.get('To', Null) if Null in (content_type, from_header, to_header): message_request.answer(400) return if content_type == 'message/cpim': try: cpim_message = CPIMPayload.decode(data.body) except (CPIMParserError, UnicodeDecodeError): # TODO: fix decoding in sipsimple log.warning('SIP message from %s to %s rejected: CPIM parse error' % (from_header.uri, '%s@%s' % (to_header.uri.user, to_header.uri.host))) message_request.answer(400) return else: content_type = cpim_message.content_type log.info('received SIP message (%s) from %s to %s' % (content_type, from_header.uri, '%s@%s' % (to_header.uri.user, to_header.uri.host))) message_request.answer(200) message_handler = MessageHandler() message_handler.incoming_message(data) def _NH_SIPSessionDidStart(self, notification): session = notification.sender try: transfer_stream = next(stream for stream in session.streams if stream.type == 'file-transfer') except StopIteration: pass else: transfer_handler = FileTransferHandler() transfer_handler.init_incoming(transfer_stream) def _NH_SIPSessionDidEnd(self, notification): session = notification.sender notification.center.remove_observer(self, sender=session) def _NH_SIPSessionDidFail(self, notification): session = notification.sender notification.center.remove_observer(self, sender=session) log.info('File transfer from %s to %s failed: %s (%s)' % (session.remote_identity.uri, session.local_identity.uri, notification.data.reason, notification.data.failure_reason)) class ParsedSIPMessage(SIPMessage): __slots__ = 'message_id', 'disposition', 'destination' def __init__(self, content, content_type, sender=None, recipients=None, courtesy_recipients=None, subject=None, timestamp=None, required=None, additional_headers=None, message_id=None, disposition=None, destination=None): super(ParsedSIPMessage, self).__init__(content, content_type, sender, recipients, courtesy_recipients, subject, timestamp, required, additional_headers) self.message_id = message_id self.disposition = disposition self.destination = destination @implementer(IObserver) class ReplicatedMessage(Message): def __init__(self, from_header, to_header, route_header, content_type, body, credentials=None, extra_headers=None): super(ReplicatedMessage, self).__init__(from_header, to_header, route_header, content_type, body, credentials=None, extra_headers=None) self._request = Request("MESSAGE", from_header.uri, from_header, to_header, route_header, credentials=credentials, extra_headers=extra_headers, content_type=content_type, body=body if isinstance(body, bytes) else body.encode()) @implementer(IObserver) class MessageHandler(object): def __init__(self): self.message_storage = MessageStorage() self.resolver = DNSLookup() self.from_header = None self.to_header = None self.content_type = None self.from_sip = None self.body = None self.parsed_message = None def _lookup_sip_target_route(self, uri): proxy = GeneralConfig.outbound_sip_proxy if proxy is not None: sip_uri = SIPURI(host=proxy.host, port=proxy.port, parameters={'transport': proxy.transport}) else: sip_uri = SIPURI.parse('sip:%s' % uri) settings = SIPSimpleSettings() try: routes = self.resolver.lookup_sip_proxy(sip_uri, settings.sip.transport_list).wait() except DNSLookupError as e: raise DNSLookupError('DNS lookup error: {exception!s}'.format(exception=e)) if not routes: raise DNSLookupError('DNS lookup error: no results found') route = random.choice([r for r in routes if r.transport == routes[0].transport]) log.debug('DNS lookup for SIP message proxy for {} yielded {}'.format(uri, route)) return route def _parse_message(self): cpim_message = None if self.content_type == "message/cpim": cpim_message = CPIMPayload.decode(self.body) body = cpim_message.content if isinstance(cpim_message.content, str) else cpim_message.content.decode() content_type = cpim_message.content_type sender = cpim_message.sender or self.from_header disposition = next(([item.strip() for item in header.value.split(',')] for header in cpim_message.additional_headers if header.name == 'Disposition-Notification'), None) message_id = next((header.value for header in cpim_message.additional_headers if header.name == 'Message-ID'), str(uuid.uuid4())) else: body = self.body.decode('utf-8') sender = self.from_header disposition = None message_id = str(uuid.uuid4()) content_type = str(self.content_type) timestamp = str(cpim_message.timestamp) if cpim_message is not None and cpim_message.timestamp is not None else str(ISOTimestamp.now()) sender = sylkrtc.SIPIdentity(uri=str(sender.uri), display_name=sender.display_name) destination = sylkrtc.SIPIdentity(uri=str(self.to_header.uri), display_name=self.to_header.display_name) self.parsed_message = ParsedSIPMessage(body, content_type, sender=sender, disposition=disposition, message_id=message_id, timestamp=timestamp, destination=destination) def _send_public_key(self, from_header, to_header, public_key): if public_key: self.outgoing_message(from_header, public_key, 'text/pgp-public-key', str(to_header)) def _handle_generate_token(self): account = f'{self.from_header.uri.user}@{self.from_header.uri.host}' log.info(f'Adding {account} for storing messages') self.message_storage.add_account(account) token = secrets.token_urlsafe() self.outgoing_message(self.from_header.uri, json.dumps({'token': token, 'url': f'{server.url}/webrtcgateway/messages/history/{account}'}), 'application/sylk-api-token') self.message_storage.add_account_token(account=account, token=token) def _handle_lookup_pgp_key(self): account = f'{self.to_header.uri.user}@{self.to_header.uri.host}' public_key = self.message_storage.get_public_key(account) log.info(f'Public key lookup for {account}') if isinstance(public_key, defer.Deferred): public_key.addCallback(lambda result: self._send_public_key(self.from_header.uri, self.to_header.uri, result)) else: self._send_public_key(self.from_header.uri, self.to_header.uri, public_key) def _handle_message_remove(self): account = f'{self.from_header.uri.user}@{self.from_header.uri.host}' contact = f'{self.to_header.uri.user}@{self.to_header.uri.host}' message_id = self.parsed_message.content self.message_storage.removeMessage(account=account, message_id=message_id) content = sylkrtc.AccountMessageRemoveEventData(contact=contact, message_id=message_id) self.message_storage.add(account=account, contact=contact, direction='', content=json.dumps(content.__data__), content_type='application/sylk-message-remove', timestamp=str(ISOTimestamp.now()), disposition_notification='', message_id=str(uuid.uuid4())) event = sylkrtc.AccountSyncEvent(account=account, type='message', action='remove', content=content) self.outgoing_message(self.from_header.uri, json.dumps(content.__data__), 'application/sylk-message-remove', str(self.to_header.uri)) notification_center = NotificationCenter() notification_center.post_notification(name='SIPApplicationGotAccountRemoveMessage', sender=account, data=event) def remove_message_from_receiver(msg_id, messages): for message in messages: if message.message_id == msg_id and message.direction == 'incoming': account = message.account message_id = message.message_id self.message_storage.removeMessage(account=account, message_id=message_id) content = sylkrtc.AccountMessageRemoveEventData(contact=message.contact, message_id=message_id) self.message_storage.add(account=account, contact=message.contact, direction='', content=json.dumps(content.__data__), content_type='application/sylk-message-remove', timestamp=str(ISOTimestamp.now()), disposition_notification='', message_id=str(uuid.uuid4())) event = sylkrtc.AccountSyncEvent(account=account, type='message', action='remove', content=content) notification_center.post_notification(name='SIPApplicationGotAccountRemoveMessage', sender=account, data=event) log.info("Removed receiver message") break messages = self.message_storage[[contact, '']] if isinstance(messages, defer.Deferred): messages.addCallback(lambda result: remove_message_from_receiver(msg_id=message_id, messages=result)) else: remove_message_from_receiver(msg_id=message_id, messages=messages) def _store_message_for_sender(self, account): if account is None: log.info('not storing %s message from non-existent account %s to %s' % (self.parsed_message.content_type, self.from_header.uri, '%s@%s' % (self.to_header.uri.user, self.to_header.uri.host))) return log.debug(f"storage is enabled for originator {account.account}") message = None ignored_content_types = ("application/im-iscomposing+xml", 'text/pgp-public-key', IMDNDocument.content_type) if self.parsed_message.content_type in ignored_content_types: return log.info('storing {content_type} message for account {originator} to {destination.uri}'.format(content_type=self.parsed_message.content_type, originator=account.account, destination=self.parsed_message.destination)) self.message_storage.add(account=account.account, contact=f'{self.to_header.uri.user}@{self.to_header.uri.host}', direction="outgoing", content=self.parsed_message.content, content_type=self.parsed_message.content_type, timestamp=str(self.parsed_message.timestamp), disposition_notification=self.parsed_message.disposition, message_id=self.parsed_message.message_id, state='accepted') message = sylkrtc.AccountSyncEvent(account=account.account, type='message', action='add', content=sylkrtc.AccountMessageRequest( transaction='1', account=account.account, uri=f'{self.to_header.uri.user}@{self.to_header.uri.host}', message_id=self.parsed_message.message_id, content=self.parsed_message.content, content_type=self.parsed_message.content_type, timestamp=str(self.parsed_message.timestamp), server_generated=True )) notification_center = NotificationCenter() notification_center.post_notification(name='SIPApplicationGotOutgoingAccountMessage', sender=account.account, data=message) def _store_message_for_receiver(self, account): if account is None: log.info('not storing %s message from %s to non-existent account %s' % (self.parsed_message.content_type, self.from_header.uri, '%s@%s' % (self.to_header.uri.user, self.to_header.uri.host))) return log.debug(f'processing message from {self.from_header.uri} for account {account.account}') message = None notification_center = NotificationCenter() if self.parsed_message.content_type == "application/im-iscomposing+xml": return if self.parsed_message.content_type == IMDNDocument.content_type: document = IMDNDocument.parse(self.parsed_message.content) imdn_message_id = document.message_id.value imdn_status = document.notification.status.__str__() imdn_datetime = document.datetime.__str__() log.info('storing IMDN message ({status}) from {originator.uri}'.format(status=imdn_status, originator=self.parsed_message.sender)) self.message_storage.update(account=account.account, state=imdn_status, message_id=imdn_message_id) self.message_storage.update(account=str(self.parsed_message.sender.uri), state=imdn_status, message_id=imdn_message_id) message = sylkrtc.AccountDispositionNotificationEvent(account=account.account, state=imdn_status, message_id=imdn_message_id, message_timestamp=imdn_datetime, timestamp=str(self.parsed_message.timestamp), code=200, reason='') imdn_message_event = message.__data__ # del imdn_message_event['account'] ## Maybe prevent multiple imdn rows? self.message_storage.add(account=account.account, contact=self.parsed_message.sender.uri, direction="incoming", content=json.dumps(imdn_message_event), content_type='message/imdn', timestamp=str(self.parsed_message.timestamp), disposition_notification='', message_id=self.parsed_message.message_id, state='received') notification_center.post_notification(name='SIPApplicationGotAccountDispositionNotification', sender=account.account, data=NotificationData(message=message, sender=self.parsed_message.sender)) else: log.info('storing {content_type} message from {originator.uri} for account {account}'.format(content_type=self.parsed_message.content_type, originator=self.parsed_message.sender, account=account.account)) self.message_storage.add(account=account.account, contact=str(self.parsed_message.sender.uri), direction='incoming', content=self.parsed_message.content, content_type=self.parsed_message.content_type, timestamp=str(self.parsed_message.timestamp), disposition_notification=self.parsed_message.disposition, message_id=self.parsed_message.message_id, state='received') message = sylkrtc.AccountMessageEvent(account=account.account, sender=self.parsed_message.sender, content=self.parsed_message.content, content_type=self.parsed_message.content_type, timestamp=str(self.parsed_message.timestamp), disposition_notification=self.parsed_message.disposition, message_id=self.parsed_message.message_id) notification_center.post_notification(name='SIPApplicationGotAccountMessage', sender=account.account, data=message) if self.parsed_message.content_type == 'text/plain' or self.parsed_message.content_type == 'text/html': def get_unread_messages(messages, originator): unread = 1 for message in messages: if ((message.content_type == 'text/plain' or message.content_type == 'text/html') and message.direction == 'incoming' and message.contact != account.account and 'display' in message.disposition): unread += 1 # log.info(f'{message.disposition} {message.contact} {message.state}') # log.info(f'there are {unread} messages') push.message(originator=originator, destination=account.account, call_id=str(uuid.uuid4()), badge=unread) messages = self.message_storage[[account.account, '']] if isinstance(messages, defer.Deferred): messages.addCallback(lambda result: get_unread_messages(messages=result, originator=message.sender)) else: get_unread_messages(messages=messages, originator=message.sender) def incoming_message(self, data, content_type=None): self.content_type = content_type if content_type is not None else data.headers.get('Content-Type', Null).content_type self.from_header = data.headers.get('From', Null) self.to_header = data.headers.get('To', Null) self.body = data.body self.from_sip = data.headers.get('X-Sylk-From-Sip', Null) self._parse_message() if self.parsed_message.content_type == 'application/sylk-api-token': self._handle_generate_token() return if self.parsed_message.content_type == 'application/sylk-api-pgp-key-lookup': self._handle_lookup_pgp_key() return if self.parsed_message.content_type == 'application/sylk-api-message-remove': self._handle_message_remove() return if self.from_sip is not Null: log.debug("message is originating from SIP endpoint") sender_account = self.message_storage.get_account(f'{self.from_header.uri.user}@{self.from_header.uri.host}') if isinstance(sender_account, defer.Deferred): sender_account.addCallback(lambda result: self._store_message_for_sender(result)) else: self._store_message_for_sender(sender_account) account = self.message_storage.get_account(f'{self.to_header.uri.user}@{self.to_header.uri.host}') if isinstance(account, defer.Deferred): account.addCallback(lambda result: self._store_message_for_receiver(result)) else: self._store_message_for_receiver(account) @run_in_green_thread def _outgoing_message(self, to_uri, from_uri, content, content_type='text/plain', headers=[], route=None, message_type=Message, subscribe=True): if not route: return from_uri = SIPURI.parse('%s' % from_uri) to_uri = SIPURI.parse('%s' % to_uri) content = content if isinstance(content, bytes) else content.encode() message_request = message_type(FromHeader(from_uri), ToHeader(to_uri), RouteHeader(route.uri), content_type, content, extra_headers=headers) if subscribe: notification_center = NotificationCenter() notification_center.add_observer(self, sender=message_request) message_request.send() @run_in_green_thread def outgoing_message(self, uri, content, content_type='text/plain', identity=None, extra_headers=[]): route = self._lookup_sip_target_route(uri) if route: if identity is None: identity = f'sip:sylkserver@{SIPConfig.local_ip}' log.info("sending message from '%s' to '%s' using proxy %s" % (identity, uri, route)) headers = [Header('X-Sylk-To-Sip', 'yes')] + extra_headers self._outgoing_message(uri, identity, content, content_type, headers=headers, route=route) @run_in_green_thread def outgoing_message_to_self(self, uri, content, content_type='text/plain', identity=None, extra_headers=[]): route = Route(address=SIPConfig.local_ip, port=SIPConfig.local_tcp_port, transport='tcp') if route: if identity is None: identity = f'sip:sylkserver@{SIPConfig.local_ip}' log.debug("sending message from '%s' to '%s' to self %s" % (identity, uri, route)) headers = [Header('X-Sylk-From-Sip', 'yes')] + extra_headers self._outgoing_message(uri, identity, content, content_type, headers=headers, route=route, subscribe=False) @run_in_green_thread def outgoing_replicated_message(self, uri, content, content_type='text/plain', identity=None, extra_headers=[]): route = self._lookup_sip_target_route(identity) if route: if identity is None: identity = f'sip:sylkserver@{SIPConfig.local_ip}' log.info("sending message from '%s' to '%s' using proxy %s" % (identity, uri, route)) headers = [Header('X-Sylk-To-Sip', 'yes'), Header('X-Replicated-Message', 'yes')] + extra_headers self._outgoing_message(uri, identity, content, content_type, headers=headers, route=route, message_type=ReplicatedMessage) def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_SIPMessageDidSucceed(self, notification): notification_center = NotificationCenter() notification_center.remove_observer(self, sender=notification.sender) log.info('outgoing message was accepted by remote party') def _NH_SIPMessageDidFail(self, notification): notification_center = NotificationCenter() notification_center.remove_observer(self, sender=notification.sender) data = notification.data reason = data.reason.decode() if isinstance(data.reason, bytes) else data.reason log.warning('could not deliver outgoing message %d %s' % (data.code, reason)) @implementer(IObserver) class FileTransferHandler(object): def __init__(self): self.session = None self.stream = None self.handler = None self.direction = None def init_incoming(self, stream): self.direction = 'incoming' self.stream = stream self.session = stream.session self.handler = stream.handler notification_center = NotificationCenter() notification_center.add_observer(self, sender=self.stream) notification_center.add_observer(self, sender=self.handler) @run_in_green_thread def init_outgoing(self, destination, file): self.direction = 'outgoing' def _terminate(self, failure_reason=None): notification_center = NotificationCenter() notification_center.remove_observer(self, sender=self.stream) notification_center.remove_observer(self, sender=self.handler) if failure_reason is None: if self.direction == 'incoming' and self.stream.direction == 'recvonly': if not hasattr(self.session, 'transfer_data'): return transfer_data = self.session.transfer_data metadata = sylkrtc.TransferredFile(**transfer_data.__dict__, hash=self.stream.file_selector.hash) meta_filepath = os.path.join(transfer_data.path, f'meta-{metadata.filename}') try: with open(meta_filepath, 'w+') as output_file: output_file.write(json.dumps(metadata.__data__)) except (OSError, IOError): unlink(meta_filepath) log.warning('Could not save metadata %s' % meta_filepath) log.info('File transfer finished, saved to %s' % transfer_data.full_path) - payload = 'File transfer available at %s (%s)' % (transfer_data.url, self.format_file_size(metadata.filesize)) + payload = 'File transfer available at %s (%s)' % (transfer_data.url, transfer_data.formatted_file_size) message_handler = MessageHandler() message_handler.outgoing_replicated_message(f'sip:{metadata.receiver.uri}', payload, identity=f'sip:{metadata.sender.uri}') message_handler.outgoing_message(f'sip:{metadata.receiver.uri}', payload, identity=f'sip:{metadata.sender.uri}') message_handler.outgoing_message_to_self(f'sip:{metadata.receiver.uri}', payload, identity=f'sip:{metadata.sender.uri}') else: pass self.session = None self.stream = None self.handler = None - @staticmethod - def format_file_size(size): - infinite = float('infinity') - boundaries = [( 1024, '%d bytes', 1), - ( 10*1024, '%.2f KB', 1024.0), ( 1024*1024, '%.1f KB', 1024.0), - ( 10*1024*1024, '%.2f MB', 1024*1024.0), (1024*1024*1024, '%.1f MB', 1024*1024.0), - (10*1024*1024*1024, '%.2f GB', 1024*1024*1024.0), ( infinite, '%.1f GB', 1024*1024*1024.0)] - for boundary, format, divisor in boundaries: - if size < boundary: - return format % (size/divisor,) - else: - return "%d bytes" % size @run_in_twisted_thread def handle_notification(self, notification): handler = getattr(self, '_NH_%s' % notification.name, Null) handler(notification) def _NH_MediaStreamDidNotInitialize(self, notification): self._terminate(failure_reason=notification.data.reason) def _NH_FileTransferHandlerDidEnd(self, notification): if self.direction == 'incoming': if self.stream.direction == 'sendonly': reactor.callLater(3, self.session.end) else: reactor.callLater(1, self.session.end) else: self.session.end() self._terminate(failure_reason=notification.data.reason) diff --git a/sylk/applications/webrtcgateway/datatypes.py b/sylk/applications/webrtcgateway/datatypes.py index d49ae27..7ef69e8 100644 --- a/sylk/applications/webrtcgateway/datatypes.py +++ b/sylk/applications/webrtcgateway/datatypes.py @@ -1,67 +1,84 @@ import base64 import hashlib import os import urllib.parse from sipsimple.util import ISOTimestamp from sipsimple.configuration.settings import SIPSimpleSettings from sylk.web import server from sylk.configuration.datatypes import URL from .models import sylkrtc class FileTransferData(object): def __init__(self, filename, filesize, filetype, transfer_id, sender, receiver, content=None): self.content = content self.filename = filename self.filesize = filesize self.filetype = filetype self.transfer_id = transfer_id self.sender = sylkrtc.SIPIdentity(uri=sender, display_name='') self.receiver = sylkrtc.SIPIdentity(uri=receiver, display_name='') self.hashed_sender = sender self.hashed_receiver = receiver self.prefix = self.hashed_sender[:1] self.path = self._get_initial_path() self.timestamp = str(ISOTimestamp.now()) self.url = self._set_url() def _encode_and_hash_uri(self, uri): return base64.urlsafe_b64encode(hashlib.md5(uri.encode('utf-8')).digest()).rstrip(b'=\n').decode('utf-8') def _get_initial_path(self): settings = SIPSimpleSettings() return os.path.join(settings.file_transfer.directory.normalized, self.prefix, self.hashed_sender, self.hashed_receiver, self.transfer_id) def update_path_for_receiver(self): settings = SIPSimpleSettings() self.prefix = self.hashed_receiver[:1] self.path = os.path.join(settings.file_transfer.directory.normalized, self.prefix, self.hashed_receiver, self.hashed_sender, self.transfer_id) self.url = self._set_url() def _set_url(self): settings = SIPSimpleSettings() stripped_path = os.path.relpath(self.path, f'{settings.file_transfer.directory.normalized}/{self.prefix}') file_path = urllib.parse.quote(f'webrtcgateway/filetransfer/{stripped_path}/{self.filename}') return str(URL(f'{server.url}/{file_path}')) @property def full_path(self): return os.path.join(self.path, self.filename) @property def hashed_sender(self): return self._hashed_sender @hashed_sender.setter def hashed_sender(self, value): self._hashed_sender = self._encode_and_hash_uri(value) @property def hashed_receiver(self): return self._hashed_receiver @hashed_receiver.setter def hashed_receiver(self, value): self._hashed_receiver = self._encode_and_hash_uri(value) + + @property + def formatted_file_size(self): + return self.format_file_size(self.filesize) + + @staticmethod + def format_file_size(size): + infinite = float('infinity') + boundaries = [( 1024, '%d bytes', 1), + ( 10*1024, '%.2f KB', 1024.0), ( 1024*1024, '%.1f KB', 1024.0), + ( 10*1024*1024, '%.2f MB', 1024*1024.0), (1024*1024*1024, '%.1f MB', 1024*1024.0), + (10*1024*1024*1024, '%.2f GB', 1024*1024*1024.0), ( infinite, '%.1f GB', 1024*1024*1024.0)] + for boundary, format, divisor in boundaries: + if size < boundary: + return format % (size/divisor,) + else: + return "%d bytes" % size