Fixed typo

This commit is contained in:
Mark Qvist 2021-05-15 10:57:54 +02:00
parent a60e4fc5f1
commit 43de693f01
7 changed files with 59 additions and 11 deletions

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@ -11,7 +11,7 @@ import RNS
# destinations we create. Since this basic example # destinations we create. Since this basic example
# is part of a range of example utilities, we'll put # is part of a range of example utilities, we'll put
# them all within the app namespace "example_utilities" # them all within the app namespace "example_utilities"
APP_NAME = "example_utilitites" APP_NAME = "example_utilities"
# This initialisation is executed when the program is started # This initialisation is executed when the program is started
def program_setup(configpath, channel=None): def program_setup(configpath, channel=None):

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@ -12,7 +12,7 @@ import RNS
# destinations we create. Since this echo example # destinations we create. Since this echo example
# is part of a range of example utilities, we'll put # is part of a range of example utilities, we'll put
# them all within the app namespace "example_utilities" # them all within the app namespace "example_utilities"
APP_NAME = "example_utilitites" APP_NAME = "example_utilities"
########################################################## ##########################################################

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@ -28,7 +28,7 @@ import RNS.vendor.umsgpack as umsgpack
# destinations we create. Since this echo example # destinations we create. Since this echo example
# is part of a range of example utilities, we'll put # is part of a range of example utilities, we'll put
# them all within the app namespace "example_utilities" # them all within the app namespace "example_utilities"
APP_NAME = "example_utilitites" APP_NAME = "example_utilities"
# We'll also define a default timeout, in seconds # We'll also define a default timeout, in seconds
APP_TIMEOUT = 45.0 APP_TIMEOUT = 45.0

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@ -13,7 +13,7 @@ import RNS
# destinations we create. Since this echo example # destinations we create. Since this echo example
# is part of a range of example utilities, we'll put # is part of a range of example utilities, we'll put
# them all within the app namespace "example_utilities" # them all within the app namespace "example_utilities"
APP_NAME = "example_utilitites" APP_NAME = "example_utilities"
########################################################## ##########################################################
#### Server Part ######################################### #### Server Part #########################################

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@ -11,7 +11,7 @@ import RNS
# destinations we create. Since this basic example # destinations we create. Since this basic example
# is part of a range of example utilities, we'll put # is part of a range of example utilities, we'll put
# them all within the app namespace "example_utilities" # them all within the app namespace "example_utilities"
APP_NAME = "example_utilitites" APP_NAME = "example_utilities"
# This initialisation is executed when the program is started # This initialisation is executed when the program is started
def program_setup(configpath): def program_setup(configpath):

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@ -36,7 +36,7 @@ class Destination:
directions = [IN, OUT] directions = [IN, OUT]
@staticmethod @staticmethod
def getDestinationName(app_name, *aspects): def full_name(app_name, *aspects):
# Check input values and build name string # Check input values and build name string
if "." in app_name: raise ValueError("Dots can't be used in app names") if "." in app_name: raise ValueError("Dots can't be used in app names")
@ -49,8 +49,8 @@ class Destination:
@staticmethod @staticmethod
def getDestinationHash(app_name, *aspects): def hash(app_name, *aspects):
name = Destination.getDestinationName(app_name, *aspects) name = Destination.full_name(app_name, *aspects)
# Create a digest for the destination # Create a digest for the destination
digest = hashes.Hash(hashes.SHA256(), backend=default_backend()) digest = hashes.Hash(hashes.SHA256(), backend=default_backend())
@ -58,6 +58,16 @@ class Destination:
return digest.finalize()[:10] return digest.finalize()[:10]
@staticmethod
def app_and_aspects_from_name(full_name):
components = full_name.split(".")
return (components[0], components[1:])
@staticmethod
def hash_from_name_and_identity(full_name, identity):
app_name, aspects = Destination.app_and_aspects_from_name(full_name)
aspects.append(identity.hexhash)
return Destination.hash(app_name, *aspects)
def __init__(self, identity, direction, type, app_name, *aspects): def __init__(self, identity, direction, type, app_name, *aspects):
# Check input values and build name string # Check input values and build name string
@ -81,8 +91,8 @@ class Destination:
self.identity = identity self.identity = identity
self.name = Destination.getDestinationName(app_name, *aspects) self.name = Destination.full_name(app_name, *aspects)
self.hash = Destination.getDestinationHash(app_name, *aspects) self.hash = Destination.hash(app_name, *aspects)
self.hexhash = self.hash.hex() self.hexhash = self.hash.hex()
self.callback = None self.callback = None

View File

@ -56,6 +56,7 @@ class Transport:
reverse_table = {} # A lookup table for storing packet hashes used to return proofs and replies reverse_table = {} # A lookup table for storing packet hashes used to return proofs and replies
link_table = {} # A lookup table containing hops for links link_table = {} # A lookup table containing hops for links
held_announces = {} # A table containing temporarily held announce-table entries held_announces = {} # A table containing temporarily held announce-table entries
announce_handlers = [] # A table storing externally registered announce handlers
# Transport control destinations are used # Transport control destinations are used
# for control purposes like path requests # for control purposes like path requests
@ -750,6 +751,32 @@ class Transport:
Transport.destination_table[packet.destination_hash] = [now, received_from, announce_hops, expires, random_blobs, packet.receiving_interface, packet] Transport.destination_table[packet.destination_hash] = [now, received_from, announce_hops, expires, random_blobs, packet.receiving_interface, packet]
RNS.log("Path to "+RNS.prettyhexrep(packet.destination_hash)+" is now "+str(announce_hops)+" hops away via "+RNS.prettyhexrep(received_from)+" on "+str(packet.receiving_interface), RNS.LOG_VERBOSE) RNS.log("Path to "+RNS.prettyhexrep(packet.destination_hash)+" is now "+str(announce_hops)+" hops away via "+RNS.prettyhexrep(received_from)+" on "+str(packet.receiving_interface), RNS.LOG_VERBOSE)
# Call externally registered callbacks from apps
# wanting to know when an announce arrives
for handler in Transport.announce_handlers:
try:
# Check that the announced destination matches
# the handlers aspect filter
execute_callback = False
if handler.aspect_filter == None:
# If the handlers aspect filter is set to
# None, we execute the callback in all cases
execute_callback = True
else:
announce_identity = RNS.Identity.recall(packet.destination_hash)
handler_expected_hash = RNS.Destination.hash_from_name_and_identity(handler.aspect_filter, announce_identity)
if packet.destination_hash == handler_expected_hash:
execute_callback = True
if execute_callback:
handler.received_announce(
destination_hash=packet.destination_hash,
announced_identity=announce_identity,
app_data=RNS.Identity.recall_app_data(packet.destination_hash)
)
except Exception as e:
RNS.log("Error while processing external announce callback.", RNS.LOG_ERROR)
RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
# Handling for linkrequests to local destinations # Handling for linkrequests to local destinations
elif packet.packet_type == RNS.Packet.LINKREQUEST: elif packet.packet_type == RNS.Packet.LINKREQUEST:
for destination in Transport.destinations: for destination in Transport.destinations:
@ -878,6 +905,17 @@ class Transport:
else: else:
RNS.log("Attempted to activate a link that was not in the pending table", RNS.LOG_ERROR) RNS.log("Attempted to activate a link that was not in the pending table", RNS.LOG_ERROR)
@staticmethod
def register_announce_handler(handler):
if hasattr(handler, "received_announce") and callable(handler.received_announce):
if hasattr(handler, "aspect_filter"):
Transport.announce_handlers.append(handler)
@staticmethod
def deregister_announce_handler(handler):
while handler in Transport.announce_handlers:
Transport.announce_handlers.remove(handler)
@staticmethod @staticmethod
def find_interface_from_hash(interface_hash): def find_interface_from_hash(interface_hash):
for interface in Transport.interfaces: for interface in Transport.interfaces: