XEP-0047: fix examples.

examples/ibb_transfer/ibb_receiver.py

@@ -22,13 +22,10 @@ class IBBReceiver(slixmpp.ClientXMPP):
     A basic example of creating and using an in-band bytestream.
     """
 
-    def __init__(self, jid, password):
+    def __init__(self, jid, password, filename):
         slixmpp.ClientXMPP.__init__(self, jid, password)
 
-        self.register_plugin('xep_0030') # Service Discovery
+        self.file = open(filename, 'wb')
-        self.register_plugin('xep_0047', {
-            'auto_accept': True
-        }) # In-band Bytestreams
 
         # The session_start event will be triggered when
         # the bot establishes its connection with the server
@@ -39,6 +36,7 @@ class IBBReceiver(slixmpp.ClientXMPP):
 
         self.add_event_handler("ibb_stream_start", self.stream_opened)
         self.add_event_handler("ibb_stream_data", self.stream_data)
+        self.add_event_handler("ibb_stream_end", self.stream_closed)
 
     def start(self, event):
         """
@@ -56,29 +54,16 @@ class IBBReceiver(slixmpp.ClientXMPP):
         self.send_presence()
         self.get_roster()
 
-    def accept_stream(self, iq):
-        """
-        Check that it is ok to accept a stream request.
-
-        Controlling stream acceptance can be done via either:
-            - setting 'auto_accept' to False in the plugin
-              configuration. The default is True.
-            - setting 'accept_stream' to a function which accepts
-              an Iq stanza as its argument, like this one.
-
-        The accept_stream function will be used if it exists, and the
-        auto_accept value will be used otherwise.
-        """
-        return True
-
     def stream_opened(self, stream):
         print('Stream opened: %s from %s' % (stream.sid, stream.peer_jid))
 
-        # You could run a loop reading from the stream using stream.recv(),
+    def stream_data(self, stream):
-        # or use the ibb_stream_data event.
+        self.file.write(stream.read())
 
-    def stream_data(self, event):
+    def stream_closed(self, stream):
-        print(event['data'])
+        print('Stream closed: %s from %s' % (stream.sid, stream.peer_jid))
+        self.file.close()
+        self.disconnect()
 
 if __name__ == '__main__':
     # Setup the command line arguments.
@@ -97,6 +82,8 @@ if __name__ == '__main__':
                         help="JID to use")
     parser.add_argument("-p", "--password", dest="password",
                         help="password to use")
+    parser.add_argument("-o", "--out", dest="filename",
+                        help="file to save to")
 
     args = parser.parse_args()
 
@@ -108,9 +95,18 @@ if __name__ == '__main__':
         args.jid = input("Username: ")
     if args.password is None:
         args.password = getpass("Password: ")
+    if args.filename is None:
+        args.filename = input("File path: ")
 
-    xmpp = IBBReceiver(args.jid, args.password)
+    # Setup the IBBReceiver and register plugins. Note that while plugins may
+    # have interdependencies, the order in which you register them does
+    # not matter.
+    xmpp = IBBReceiver(args.jid, args.password, args.filename)
+    xmpp.register_plugin('xep_0030') # Service Discovery
+    xmpp.register_plugin('xep_0047', {
+        'auto_accept': True
+    }) # In-band Bytestreams
 
     # Connect to the XMPP server and start processing XMPP stanzas.
     xmpp.connect()
-    xmpp.process()
+    xmpp.process(forever=False)

examples/ibb_transfer/ibb_sender.py

@@ -9,11 +9,13 @@
     See the file LICENSE for copying permission.
 """
 
+import asyncio
 import logging
 from getpass import getpass
 from argparse import ArgumentParser
 
 import slixmpp
+from slixmpp.exceptions import IqError, IqTimeout
 
 
 class IBBSender(slixmpp.ClientXMPP):
@@ -22,11 +24,13 @@ class IBBSender(slixmpp.ClientXMPP):
     A basic example of creating and using an in-band bytestream.
     """
 
-    def __init__(self, jid, password, receiver, filename):
+    def __init__(self, jid, password, receiver, filename, use_messages=False):
         slixmpp.ClientXMPP.__init__(self, jid, password)
 
         self.receiver = receiver
-        self.filename = filename
+
+        self.file = open(filename, 'rb')
+        self.use_messages = use_messages
 
         # The session_start event will be triggered when
         # the bot establishes its connection with the server
@@ -35,6 +39,7 @@ class IBBSender(slixmpp.ClientXMPP):
         # our roster.
         self.add_event_handler("session_start", self.start)
 
+    @asyncio.coroutine
     def start(self, event):
         """
         Process the session_start event.
@@ -51,15 +56,22 @@ class IBBSender(slixmpp.ClientXMPP):
         self.send_presence()
         self.get_roster()
 
-        # For the purpose of demonstration, we'll set a very small block
+        try:
-        # size. The default block size is 4096. We'll also use a window
+            # Open the IBB stream in which to write to.
-        # allowing sending multiple blocks at a time; in this case, three
+            stream = yield from self['xep_0047'].open_stream(self.receiver, use_messages=self.use_messages)
-        # block transfers may be in progress at any time.
-        stream = self['xep_0047'].open_stream(self.receiver)
 
-        with open(self.filename) as f:
+            # If you want to send in-memory bytes, use stream.sendall() instead.
-            data = f.read()
+            yield from stream.sendfile(self.file, timeout=10)
-            stream.sendall(data)
+
+            # And finally close the stream.
+            yield from stream.close(timeout=10)
+        except (IqError, IqTimeout):
+            print('File transfer errored')
+        else:
+            print('File transfer finished')
+        finally:
+            self.file.close()
+            self.disconnect()
 
 
 if __name__ == '__main__':
@@ -80,9 +92,11 @@ if __name__ == '__main__':
     parser.add_argument("-p", "--password", dest="password",
                         help="password to use")
     parser.add_argument("-r", "--receiver", dest="receiver",
-                        help="JID to use")
+                        help="JID of the receiver")
     parser.add_argument("-f", "--file", dest="filename",
-                        help="JID to use")
+                        help="file to send")
+    parser.add_argument("-m", "--use-messages", action="store_true",
+                        help="use messages instead of iqs for file transfer")
 
     args = parser.parse_args()
 
@@ -99,16 +113,13 @@ if __name__ == '__main__':
     if args.filename is None:
         args.filename = input("File path: ")
 
-    # Setup the EchoBot and register plugins. Note that while plugins may
+    # Setup the IBBSender and register plugins. Note that while plugins may
     # have interdependencies, the order in which you register them does
     # not matter.
-    xmpp = IBBSender(args.jid, args.password, args.receiver, args.filename)
+    xmpp = IBBSender(args.jid, args.password, args.receiver, args.filename, args.use_messages)
     xmpp.register_plugin('xep_0030') # Service Discovery
-    xmpp.register_plugin('xep_0004') # Data Forms
     xmpp.register_plugin('xep_0047') # In-band Bytestreams
-    xmpp.register_plugin('xep_0060') # PubSub
-    xmpp.register_plugin('xep_0199') # XMPP Ping
 
     # Connect to the XMPP server and start processing XMPP stanzas.
     xmpp.connect()
-    xmpp.process()
+    xmpp.process(forever=False)