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Changed method order

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This commit is contained in:
Mark Qvist 2021-05-16 23:14:19 +02:00
parent cd0e177080
commit 3f1e2bc682
1 changed files with 44 additions and 44 deletions
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86
RNS/Destination.py
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@ -137,12 +137,53 @@ class Destination:
return "<"+self.name+"/"+self.hexhash+">" return "<"+self.name+"/"+self.hexhash+">"
def announce(self, app_data=None, path_response=False):
"""
Creates an announce packet for this destination and broadcasts it on
all interfaces. Application specific data can be added to the announce.
:param app_data: *bytes* containing the app_data.
:param path_response: Internal flag used by :ref:`RNS.Transport<api-transport>`. Ignore.
"""
destination_hash = self.hash
random_hash = RNS.Identity.get_random_hash()
if app_data == None and self.default_app_data != None:
if isinstance(self.default_app_data, bytes):
app_data = self.default_app_data
elif callable(self.default_app_data):
returned_app_data = self.default_app_data()
if isinstance(returned_app_data, bytes):
app_data = returned_app_data
signed_data = self.hash+self.identity.get_public_key()+random_hash
if app_data != None:
signed_data += app_data
signature = self.identity.sign(signed_data)
# TODO: Check if this could be optimised by only
# carrying the hash in the destination field, not
# also redundantly inside the signed blob as here
announce_data = self.hash+self.identity.get_public_key()+random_hash+signature
if app_data != None:
announce_data += app_data
if path_response:
announce_context = RNS.Packet.PATH_RESPONSE
else:
announce_context = RNS.Packet.NONE
RNS.Packet(self, announce_data, RNS.Packet.ANNOUNCE, context = announce_context).send()
def link_established_callback(self, callback): def link_established_callback(self, callback):
""" """
Registers a function to be called when a link has been established to Registers a function to be called when a link has been established to
this destination. this destination.
:param callback: A function or method to be called :param callback: A function or method to be called.
""" """
self.callbacks.link_established = callback self.callbacks.link_established = callback
@ -151,7 +192,7 @@ class Destination:
Registers a function to be called when a packet has been received by Registers a function to be called when a packet has been received by
this destination. this destination.
:param callback: A function or method to be called :param callback: A function or method to be called.
""" """
self.callbacks.packet = callback self.callbacks.packet = callback
@ -322,44 +363,3 @@ class Destination:
Clears default app_data previously set for the destination. Clears default app_data previously set for the destination.
""" """
self.set_default_app_data(app_data=None) self.set_default_app_data(app_data=None)
def announce(self, app_data=None, path_response=False):
"""
Creates an announce packet for this destination and broadcasts it on
all interfaces. Application specific data can be added to the announce.
:param app_data: *bytes* containing the app_data.
:param path_response: Internal flag used by :ref:`RNS.Transport<api-transport>`. Ignore.
"""
destination_hash = self.hash
random_hash = RNS.Identity.get_random_hash()
if app_data == None and self.default_app_data != None:
if isinstance(self.default_app_data, bytes):
app_data = self.default_app_data
elif callable(self.default_app_data):
returned_app_data = self.default_app_data()
if isinstance(returned_app_data, bytes):
app_data = returned_app_data
signed_data = self.hash+self.identity.get_public_key()+random_hash
if app_data != None:
signed_data += app_data
signature = self.identity.sign(signed_data)
# TODO: Check if this could be optimised by only
# carrying the hash in the destination field, not
# also redundantly inside the signed blob as here
announce_data = self.hash+self.identity.get_public_key()+random_hash+signature
if app_data != None:
announce_data += app_data
if path_response:
announce_context = RNS.Packet.PATH_RESPONSE
else:
announce_context = RNS.Packet.NONE
RNS.Packet(self, announce_data, RNS.Packet.ANNOUNCE, context = announce_context).send()