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Implemented request and response API

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Mark Qvist 2021-08-20 23:29:06 +02:00
parent 69930e5652
commit 1dc6655017
19 changed files with 881 additions and 42 deletions
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283
Examples/Request.py Normal file
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@ -0,0 +1,283 @@
##########################################################
# This RNS example demonstrates how to set perform #
# requests and receive responses over a link. #
##########################################################
import os
import sys
import time
import random
import argparse
import RNS
# Let's define an app name. We'll use this for all
# destinations we create. Since this echo example
# is part of a range of example utilities, we'll put
# them all within the app namespace "example_utilities"
APP_NAME = "example_utilities"
##########################################################
#### Server Part #########################################
##########################################################
# A reference to the latest client link that connected
latest_client_link = None
def random_text_generator(path, data, request_id, remote_identity_hash, requested_at):
RNS.log("Generating response to request "+RNS.prettyhexrep(request_id))
texts = ["They looked up", "On each full moon", "Becky was upset", "I’ll stay away from it", "The pet shop stocks everything"]
return texts[random.randint(0, len(texts)-1)]
# This initialisation is executed when the users chooses
# to run as a server
def server(configpath):
# We must first initialise Reticulum
reticulum = RNS.Reticulum(configpath)
# Randomly create a new identity for our link example
server_identity = RNS.Identity()
# We create a destination that clients can connect to. We
# want clients to create links to this destination, so we
# need to create a "single" destination type.
server_destination = RNS.Destination(
server_identity,
RNS.Destination.IN,
RNS.Destination.SINGLE,
APP_NAME,
"requestexample"
)
# We configure a function that will get called every time
# a new client creates a link to this destination.
server_destination.set_link_established_callback(client_connected)
# We register a request handler for handling incoming
# requests over any established links.
server_destination.register_request_handler(
"/random/text",
response_generator = random_text_generator,
allow = RNS.Destination.ALLOW_ALL
)
# Everything's ready!
# Let's Wait for client requests or user input
server_loop(server_destination)
def server_loop(destination):
# Let the user know that everything is ready
RNS.log(
"Request example "+
RNS.prettyhexrep(destination.hash)+
" running, waiting for a connection."
)
RNS.log("Hit enter to manually send an announce (Ctrl-C to quit)")
# We enter a loop that runs until the users exits.
# If the user hits enter, we will announce our server
# destination on the network, which will let clients
# know how to create messages directed towards it.
while True:
entered = input()
destination.announce()
RNS.log("Sent announce from "+RNS.prettyhexrep(destination.hash))
# When a client establishes a link to our server
# destination, this function will be called with
# a reference to the link.
def client_connected(link):
global latest_client_link
RNS.log("Client connected")
link.set_link_closed_callback(client_disconnected)
latest_client_link = link
def client_disconnected(link):
RNS.log("Client disconnected")
##########################################################
#### Client Part #########################################
##########################################################
# A reference to the server link
server_link = None
# This initialisation is executed when the users chooses
# to run as a client
def client(destination_hexhash, configpath):
# We need a binary representation of the destination
# hash that was entered on the command line
try:
if len(destination_hexhash) != 20:
raise ValueError("Destination length is invalid, must be 20 hexadecimal characters (10 bytes)")
destination_hash = bytes.fromhex(destination_hexhash)
except:
RNS.log("Invalid destination entered. Check your input!\n")
exit()
# We must first initialise Reticulum
reticulum = RNS.Reticulum(configpath)
# Check if we know a path to the destination
if not RNS.Transport.has_path(destination_hash):
RNS.log("Destination is not yet known. Requesting path and waiting for announce to arrive...")
RNS.Transport.request_path(destination_hash)
while not RNS.Transport.has_path(destination_hash):
time.sleep(0.1)
# Recall the server identity
server_identity = RNS.Identity.recall(destination_hash)
# Inform the user that we'll begin connecting
RNS.log("Establishing link with server...")
# When the server identity is known, we set
# up a destination
server_destination = RNS.Destination(
server_identity,
RNS.Destination.OUT,
RNS.Destination.SINGLE,
APP_NAME,
"requestexample"
)
# And create a link
link = RNS.Link(server_destination)
# We'll set up functions to inform the
# user when the link is established or closed
link.set_link_established_callback(link_established)
link.set_link_closed_callback(link_closed)
# Everything is set up, so let's enter a loop
# for the user to interact with the example
client_loop()
def client_loop():
global server_link
# Wait for the link to become active
while not server_link:
time.sleep(0.1)
should_quit = False
while not should_quit:
try:
print("> ", end=" ")
text = input()
# Check if we should quit the example
if text == "quit" or text == "q" or text == "exit":
should_quit = True
server_link.teardown()
else:
server_link.request(
"/random/text",
data = None,
response_callback = got_response,
failed_callback = request_failed
)
except Exception as e:
RNS.log("Error while sending request over the link: "+str(e))
should_quit = True
server_link.teardown()
def got_response(request_receipt):
request_id = request_receipt.request_id
response = request_receipt.response
RNS.log("Got response for request "+RNS.prettyhexrep(request_id)+": "+str(response))
def request_received(request_receipt):
RNS.log("The request "+RNS.prettyhexrep(request_receipt.request_id)+" was received by the remote peer.")
def request_failed(request_receipt):
RNS.log("The request "+RNS.prettyhexrep(request_receipt.request_id)+" failed.")
# This function is called when a link
# has been established with the server
def link_established(link):
# We store a reference to the link
# instance for later use
global server_link
server_link = link
# Inform the user that the server is
# connected
RNS.log("Link established with server, hit enter to perform a request, or type in \"quit\" to quit")
# When a link is closed, we'll inform the
# user, and exit the program
def link_closed(link):
if link.teardown_reason == RNS.Link.TIMEOUT:
RNS.log("The link timed out, exiting now")
elif link.teardown_reason == RNS.Link.DESTINATION_CLOSED:
RNS.log("The link was closed by the server, exiting now")
else:
RNS.log("Link closed, exiting now")
RNS.Reticulum.exit_handler()
time.sleep(1.5)
os._exit(0)
##########################################################
#### Program Startup #####################################
##########################################################
# This part of the program runs at startup,
# and parses input of from the user, and then
# starts up the desired program mode.
if __name__ == "__main__":
try:
parser = argparse.ArgumentParser(description="Simple request/response example")
parser.add_argument(
"-s",
"--server",
action="store_true",
help="wait for incoming requests from clients"
)
parser.add_argument(
"--config",
action="store",
default=None,
help="path to alternative Reticulum config directory",
type=str
)
parser.add_argument(
"destination",
nargs="?",
default=None,
help="hexadecimal hash of the server destination",
type=str
)
args = parser.parse_args()
if args.config:
configarg = args.config
else:
configarg = None
if args.server:
server(configarg)
else:
if (args.destination == None):
print("")
parser.print_help()
print("")
else:
client(args.destination, configarg)
except KeyboardInterrupt:
print("")
exit()

45
RNS/Destination.py
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@ -40,6 +40,11 @@ class Destination:
PROVE_ALL = 0x23
proof_strategies = [PROVE_NONE, PROVE_APP, PROVE_ALL]
ALLOW_NONE = 0x00
ALLOW_ALL = 0x01
ALLOW_LIST = 0x02
request_policies = [ALLOW_NONE, ALLOW_ALL, ALLOW_LIST]
IN = 0x11;
OUT = 0x12;
directions = [IN, OUT]
@ -97,6 +102,7 @@ class Destination:
if not type in Destination.types: raise ValueError("Unknown destination type")
if not direction in Destination.directions: raise ValueError("Unknown destination direction")
self.callbacks = Callbacks()
self.request_handlers = {}
self.type = type
self.direction = direction
self.proof_strategy = Destination.PROVE_NONE
@ -208,6 +214,45 @@ class Destination:
else:
self.proof_strategy = proof_strategy
def register_request_handler(self, path, response_generator = None, allow = ALLOW_NONE, allowed_list = None):
"""
Registers a request handler.
:param path: The path for the request handler to be registered.
:param response_generator: A function or method with the signature *response_generator(path, data, request_id, remote_identity_hash, requested_at)* to be called. Whatever this funcion returns will be sent as a response to the requester. If the function returns ``None``, no response will be sent.
:param allow: One of ``RNS.Destination.ALLOW_NONE``, ``RNS.Destination.ALLOW_ALL`` or ``RNS.Destination.ALLOW_LIST``. If ``RNS.Destination.ALLOW_LIST`` is set, the request handler will only respond to requests for identified peers in the supplied list.
:param allowed_list: A list of *bytes-like* :ref:`RNS.Identity<api-identity>` hashes.
:raises: ``ValueError`` if any of the supplied arguments are invalid.
"""
if path == None or path == "":
raise ValueError("Invalid path specified")
elif not callable(response_generator):
raise ValueError("Invalid response generator specified")
elif not allow in Destination.request_policies:
raise ValueError("Invalid request policy")
else:
path_hash = RNS.Identity.truncated_hash(path.encode("utf-8"))
request_handler = [path, response_generator, allow, allowed_list]
self.request_handlers[path_hash] = request_handler
def deregister_request_handler(self, path):
"""
Deregisters a request handler.
:param path: The path for the request handler to be deregistered.
:returns: True if the handler was deregistered, otherwise False.
"""
path_hash = RNS.Identity.truncated_hash(path.encode("utf-8"))
if path_hash in self.request_handlers:
self.request_handlers.pop(path_hash)
return True
else:
return False
def receive(self, packet):
if packet.packet_type == RNS.Packet.LINKREQUEST:
plaintext = packet.data

141
RNS/Link.py
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@ -110,6 +110,7 @@ class Link:
self.resource_strategy = Link.ACCEPT_NONE
self.outgoing_resources = []
self.incoming_resources = []
self.pending_requests = []
self.last_inbound = 0
self.last_outbound = 0
self.tx = 0
@ -265,6 +266,26 @@ class Link:
self.had_outbound()
def request(self, path, data = None, response_callback = None, failed_callback = None):
"""
Sends a request to the remote peer.
:param path: The request path.
:param response_callback: A function or method with the signature *response_callback(request_receipt)* to be called when a response is received. See the :ref:`Request Example<example-request>` for more info.
:param failed_callback: A function or method with the signature *failed_callback(request_receipt)* to be called when a request fails. See the :ref:`Request Example<example-request>` for more info.
"""
request_path_hash = RNS.Identity.truncated_hash(path.encode("utf-8"))
unpacked_request = [time.time(), request_path_hash, data]
packed_request = umsgpack.packb(unpacked_request)
if len(packed_request) <= Link.MDU:
request_packet = RNS.Packet(self, packed_request, RNS.Packet.DATA, context = RNS.Packet.REQUEST)
return RequestReceipt(self, request_packet.send(), response_callback, failed_callback)
else:
# TODO: Implement sending requests as Resources
raise IOError("Request size of "+str(len(packed_request))+" exceeds MDU of "+str(Link.MDU)+" bytes")
def rtt_packet(self, packet):
try:
# TODO: This is crude, we should use the delta
@ -467,6 +488,70 @@ class Link:
if self.callbacks.remote_identified != None:
self.callbacks.remote_identified(self.__remote_identity)
elif packet.context == RNS.Packet.REQUEST:
try:
request_id = packet.getTruncatedHash()
packed_request = self.decrypt(packet.data)
unpacked_request = umsgpack.unpackb(packed_request)
requested_at = unpacked_request[0]
path_hash = unpacked_request[1]
request_data = unpacked_request[2]
if path_hash in self.destination.request_handlers:
request_handler = self.destination.request_handlers[path_hash]
path = request_handler[0]
response_generator = request_handler[1]
allow = request_handler[2]
allowed_list = request_handler[3]
allowed = False
if not allow == RNS.Destination.ALLOW_NONE:
if allow == RNS.Destination.ALLOW_LIST:
if self.__remote_identity in allowed_list:
allowed = True
elif allow == RNS.Destination.ALLOW_ALL:
allowed = True
if allowed:
response = response_generator(path, request_data, request_id, self.__remote_identity, requested_at)
if response != None:
packed_response = umsgpack.packb([request_id, True, response])
if len(packed_response) <= Link.MDU:
RNS.Packet(self, packed_response, RNS.Packet.DATA, context = RNS.Packet.RESPONSE).send()
else:
# TODO: Implement transfer as resource
packed_response = umsgpack.packb([request_id, False, None])
raise Exception("Response transfer as resource not implemented")
except Exception as e:
RNS.log("Error occurred while handling request. The contained exception was: "+str(e), RNS.LOG_ERROR)
elif packet.context == RNS.Packet.RESPONSE:
packed_response = self.decrypt(packet.data)
unpacked_response = umsgpack.unpackb(packed_response)
request_id = unpacked_response[0]
if unpacked_response[1] == True:
remove = None
for pending_request in self.pending_requests:
if pending_request.request_id == request_id:
response_data = unpacked_response[2]
remove = pending_request
try:
pending_request.response_received(response_data)
except Exception as e:
RNS.log("Error occurred while handling response. The contained exception was: "+str(e), RNS.LOG_ERROR)
break
if remove != None:
self.pending_requests.remove(remove)
else:
# TODO: Implement receiving responses as Resources
raise Exception("Response transfer as resource not implemented")
elif packet.context == RNS.Packet.LRRTT:
if not self.initiator:
self.rtt_packet(packet)
@ -691,4 +776,58 @@ class Link:
return self.__encryption_disabled
def __str__(self):
return RNS.prettyhexrep(self.link_id)
return RNS.prettyhexrep(self.link_id)
class RequestReceipt():
FAILED = 0x00
SENT = 0x01
DELIVERED = 0x02
READY = 0x03
def __init__(self, link, packet_receipt, response_callback = None, failed_callback = None):
self.hash = packet_receipt.truncated_hash
self.link = link
self.request_id = self.hash
self.response = None
self.status = RequestReceipt.SENT
self.sent_at = time.time()
self.timeout = RNS.Packet.TIMEOUT
self.concluded_at = None
self.callbacks = RequestReceiptCallbacks()
self.callbacks.response = response_callback
self.callbacks.failed = failed_callback
self.packet_receipt = packet_receipt
self.packet_receipt.set_timeout_callback(self.request_timed_out)
self.link.pending_requests.append(self)
def request_timed_out(self, packet_receipt):
self.status = RequestReceipt.FAILED
self.concluded_at = time.time()
self.link.pending_requests.remove(self)
if self.callbacks.failed != None:
self.callbacks.failed(self)
def response_received(self, response):
self.response = response
self.packet_receipt.status = RNS.PacketReceipt.DELIVERED
self.packet_receipt.proved = True
self.packet_receipt.concluded_at = time.time()
if self.packet_receipt.callbacks.delivery != None:
self.packet_receipt.callbacks.delivery(self)
if self.callbacks.response != None:
self.callbacks.response(self)
class RequestReceiptCallbacks:
def __init__(self):
self.response = None
self.failed = None

22
RNS/Packet.py
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@ -41,7 +41,7 @@ class Packet:
HEADER_4 = 0x03 # Reserved
header_types = [HEADER_1, HEADER_2, HEADER_3, HEADER_4]
# Data packet context types
# Packet context types
NONE = 0x00 # Generic data packet
RESOURCE = 0x01 # Packet is part of a resource
RESOURCE_ADV = 0x02 # Packet is a resource advertisement
@ -68,7 +68,6 @@ class Packet:
HEADER_MAXSIZE = RNS.Reticulum.HEADER_MAXSIZE
MDU = RNS.Reticulum.MDU
# TODO: Update this
# With an MTU of 500, the maximum of data we can
# send in a single encrypted packet is given by
# the below calculation; 383 bytes.
@ -326,15 +325,16 @@ class PacketReceipt:
# Creates a new packet receipt from a sent packet
def __init__(self, packet):
self.hash = packet.get_hash()
self.sent = True
self.sent_at = time.time()
self.timeout = Packet.TIMEOUT
self.proved = False
self.status = PacketReceipt.SENT
self.destination = packet.destination
self.callbacks = PacketReceiptCallbacks()
self.concluded_at = None
self.hash = packet.get_hash()
self.truncated_hash = packet.getTruncatedHash()
self.sent = True
self.sent_at = time.time()
self.timeout = Packet.TIMEOUT
self.proved = False
self.status = PacketReceipt.SENT
self.destination = packet.destination
self.callbacks = PacketReceiptCallbacks()
self.concluded_at = None
def get_status(self):
"""

2
docs/manual/.buildinfo
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@ -1,4 +1,4 @@
# Sphinx build info version 1
# This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
config: 205a0b937612ce08d1a58b1cbb471256
config: 966ae7177c1d48c9ee15971994c623b5
tags: 645f666f9bcd5a90fca523b33c5a78b7

11
docs/manual/_sources/examples.rst.txt
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@ -80,6 +80,17 @@ the link has been established.
This example can also be found at `<https://github.com/markqvist/Reticulum/blob/master/Examples/Identify.py>`_.
.. _example-request:
Requests & Responses
====================
The *Request* example explores sendig requests and receiving responses.
.. literalinclude:: ../../Examples/Request.py
This example can also be found at `<https://github.com/markqvist/Reticulum/blob/master/Examples/Request.py>`_.
.. _example-filetransfer:
Filetransfer

2
docs/manual/_static/documentation_options.js
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@ -1,6 +1,6 @@
var DOCUMENTATION_OPTIONS = {
URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'),
VERSION: '0.2.1 beta',
VERSION: '0.2.2 beta',
LANGUAGE: 'None',
COLLAPSE_INDEX: false,
BUILDER: 'html',

303
docs/manual/examples.html
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@ -5,7 +5,7 @@
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Examples &#8212; Reticulum Network Stack 0.2.1 beta documentation</title>
<title>Examples &#8212; Reticulum Network Stack 0.2.2 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/classic.css" />
@ -27,7 +27,7 @@
<li class="right" >
<a href="reference.html" title="API Reference"
accesskey="P">previous</a> |</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Examples</a></li>
</ul>
</div>
@ -1362,6 +1362,295 @@ the link has been established.</p>
</div>
<p>This example can also be found at <a class="reference external" href="https://github.com/markqvist/Reticulum/blob/master/Examples/Identify.py">https://github.com/markqvist/Reticulum/blob/master/Examples/Identify.py</a>.</p>
</div>
<div class="section" id="requests-responses">
<span id="example-request"></span><h2>Requests &amp; Responses<a class="headerlink" href="#requests-responses" title="Permalink to this headline"></a></h2>
<p>The <em>Request</em> example explores sendig requests and receiving responses.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="c1">##########################################################</span>
<span class="c1"># This RNS example demonstrates how to set perform #</span>
<span class="c1"># requests and receive responses over a link. #</span>
<span class="c1">##########################################################</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">import</span> <span class="nn">time</span>
<span class="kn">import</span> <span class="nn">random</span>
<span class="kn">import</span> <span class="nn">argparse</span>
<span class="kn">import</span> <span class="nn">RNS</span>
<span class="c1"># Let&#39;s define an app name. We&#39;ll use this for all</span>
<span class="c1"># destinations we create. Since this echo example</span>
<span class="c1"># is part of a range of example utilities, we&#39;ll put</span>
<span class="c1"># them all within the app namespace &quot;example_utilities&quot;</span>
<span class="n">APP_NAME</span> <span class="o">=</span> <span class="s2">&quot;example_utilities&quot;</span>
<span class="c1">##########################################################</span>
<span class="c1">#### Server Part #########################################</span>
<span class="c1">##########################################################</span>
<span class="c1"># A reference to the latest client link that connected</span>
<span class="n">latest_client_link</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">def</span> <span class="nf">random_text_generator</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="n">remote_identity_hash</span><span class="p">,</span> <span class="n">requested_at</span><span class="p">):</span>
<span class="n">texts</span> <span class="o">=</span> <span class="p">[</span><span class="s2">&quot;They looked up&quot;</span><span class="p">,</span> <span class="s2">&quot;On each full moon&quot;</span><span class="p">,</span> <span class="s2">&quot;Becky was upset&quot;</span><span class="p">,</span> <span class="s2">&quot;I’ll stay away from it&quot;</span><span class="p">,</span> <span class="s2">&quot;The pet shop stocks everything&quot;</span><span class="p">]</span>
<span class="k">return</span> <span class="n">texts</span><span class="p">[</span><span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">texts</span><span class="p">)</span><span class="o">-</span><span class="mi">1</span><span class="p">)]</span>
<span class="c1"># This initialisation is executed when the users chooses</span>
<span class="c1"># to run as a server</span>
<span class="k">def</span> <span class="nf">server</span><span class="p">(</span><span class="n">configpath</span><span class="p">):</span>
<span class="c1"># We must first initialise Reticulum</span>
<span class="n">reticulum</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Reticulum</span><span class="p">(</span><span class="n">configpath</span><span class="p">)</span>
<span class="c1"># Randomly create a new identity for our link example</span>
<span class="n">server_identity</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Identity</span><span class="p">()</span>
<span class="c1"># We create a destination that clients can connect to. We</span>
<span class="c1"># want clients to create links to this destination, so we</span>
<span class="c1"># need to create a &quot;single&quot; destination type.</span>
<span class="n">server_destination</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Destination</span><span class="p">(</span>
<span class="n">server_identity</span><span class="p">,</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">Destination</span><span class="o">.</span><span class="n">IN</span><span class="p">,</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">Destination</span><span class="o">.</span><span class="n">SINGLE</span><span class="p">,</span>
<span class="n">APP_NAME</span><span class="p">,</span>
<span class="s2">&quot;requestexample&quot;</span>
<span class="p">)</span>
<span class="c1"># We configure a function that will get called every time</span>
<span class="c1"># a new client creates a link to this destination.</span>
<span class="n">server_destination</span><span class="o">.</span><span class="n">set_link_established_callback</span><span class="p">(</span><span class="n">client_connected</span><span class="p">)</span>
<span class="c1"># We register a request handler for handling incoming</span>
<span class="c1"># requests over any established links.</span>
<span class="n">server_destination</span><span class="o">.</span><span class="n">register_request_handler</span><span class="p">(</span>
<span class="s2">&quot;/random/text&quot;</span><span class="p">,</span>
<span class="n">response_generator</span> <span class="o">=</span> <span class="n">random_text_generator</span><span class="p">,</span>
<span class="n">allow</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Destination</span><span class="o">.</span><span class="n">ALLOW_ALL</span>
<span class="p">)</span>
<span class="c1"># Everything&#39;s ready!</span>
<span class="c1"># Let&#39;s Wait for client requests or user input</span>
<span class="n">server_loop</span><span class="p">(</span><span class="n">server_destination</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">server_loop</span><span class="p">(</span><span class="n">destination</span><span class="p">):</span>
<span class="c1"># Let the user know that everything is ready</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span>
<span class="s2">&quot;Request example &quot;</span><span class="o">+</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">prettyhexrep</span><span class="p">(</span><span class="n">destination</span><span class="o">.</span><span class="n">hash</span><span class="p">)</span><span class="o">+</span>
<span class="s2">&quot; running, waiting for a connection.&quot;</span>
<span class="p">)</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Hit enter to manually send an announce (Ctrl-C to quit)&quot;</span><span class="p">)</span>
<span class="c1"># We enter a loop that runs until the users exits.</span>
<span class="c1"># If the user hits enter, we will announce our server</span>
<span class="c1"># destination on the network, which will let clients</span>
<span class="c1"># know how to create messages directed towards it.</span>
<span class="k">while</span> <span class="kc">True</span><span class="p">:</span>
<span class="n">entered</span> <span class="o">=</span> <span class="nb">input</span><span class="p">()</span>
<span class="n">destination</span><span class="o">.</span><span class="n">announce</span><span class="p">()</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Sent announce from &quot;</span><span class="o">+</span><span class="n">RNS</span><span class="o">.</span><span class="n">prettyhexrep</span><span class="p">(</span><span class="n">destination</span><span class="o">.</span><span class="n">hash</span><span class="p">))</span>
<span class="c1"># When a client establishes a link to our server</span>
<span class="c1"># destination, this function will be called with</span>
<span class="c1"># a reference to the link.</span>
<span class="k">def</span> <span class="nf">client_connected</span><span class="p">(</span><span class="n">link</span><span class="p">):</span>
<span class="k">global</span> <span class="n">latest_client_link</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Client connected&quot;</span><span class="p">)</span>
<span class="n">link</span><span class="o">.</span><span class="n">set_link_closed_callback</span><span class="p">(</span><span class="n">client_disconnected</span><span class="p">)</span>
<span class="n">latest_client_link</span> <span class="o">=</span> <span class="n">link</span>
<span class="k">def</span> <span class="nf">client_disconnected</span><span class="p">(</span><span class="n">link</span><span class="p">):</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Client disconnected&quot;</span><span class="p">)</span>
<span class="c1">##########################################################</span>
<span class="c1">#### Client Part #########################################</span>
<span class="c1">##########################################################</span>
<span class="c1"># A reference to the server link</span>
<span class="n">server_link</span> <span class="o">=</span> <span class="kc">None</span>
<span class="c1"># This initialisation is executed when the users chooses</span>
<span class="c1"># to run as a client</span>
<span class="k">def</span> <span class="nf">client</span><span class="p">(</span><span class="n">destination_hexhash</span><span class="p">,</span> <span class="n">configpath</span><span class="p">):</span>
<span class="c1"># We need a binary representation of the destination</span>
<span class="c1"># hash that was entered on the command line</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">destination_hexhash</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">20</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">&quot;Destination length is invalid, must be 20 hexadecimal characters (10 bytes)&quot;</span><span class="p">)</span>
<span class="n">destination_hash</span> <span class="o">=</span> <span class="nb">bytes</span><span class="o">.</span><span class="n">fromhex</span><span class="p">(</span><span class="n">destination_hexhash</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Invalid destination entered. Check your input!</span><span class="se">\n</span><span class="s2">&quot;</span><span class="p">)</span>
<span class="n">exit</span><span class="p">()</span>
<span class="c1"># We must first initialise Reticulum</span>
<span class="n">reticulum</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Reticulum</span><span class="p">(</span><span class="n">configpath</span><span class="p">)</span>
<span class="c1"># Check if we know a path to the destination</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Transport</span><span class="o">.</span><span class="n">has_path</span><span class="p">(</span><span class="n">destination_hash</span><span class="p">):</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Destination is not yet known. Requesting path and waiting for announce to arrive...&quot;</span><span class="p">)</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">Transport</span><span class="o">.</span><span class="n">request_path</span><span class="p">(</span><span class="n">destination_hash</span><span class="p">)</span>
<span class="k">while</span> <span class="ow">not</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Transport</span><span class="o">.</span><span class="n">has_path</span><span class="p">(</span><span class="n">destination_hash</span><span class="p">):</span>
<span class="n">time</span><span class="o">.</span><span class="n">sleep</span><span class="p">(</span><span class="mf">0.1</span><span class="p">)</span>
<span class="c1"># Recall the server identity</span>
<span class="n">server_identity</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Identity</span><span class="o">.</span><span class="n">recall</span><span class="p">(</span><span class="n">destination_hash</span><span class="p">)</span>
<span class="c1"># Inform the user that we&#39;ll begin connecting</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Establishing link with server...&quot;</span><span class="p">)</span>
<span class="c1"># When the server identity is known, we set</span>
<span class="c1"># up a destination</span>
<span class="n">server_destination</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Destination</span><span class="p">(</span>
<span class="n">server_identity</span><span class="p">,</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">Destination</span><span class="o">.</span><span class="n">OUT</span><span class="p">,</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">Destination</span><span class="o">.</span><span class="n">SINGLE</span><span class="p">,</span>
<span class="n">APP_NAME</span><span class="p">,</span>
<span class="s2">&quot;requestexample&quot;</span>
<span class="p">)</span>
<span class="c1"># And create a link</span>
<span class="n">link</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Link</span><span class="p">(</span><span class="n">server_destination</span><span class="p">)</span>
<span class="c1"># We&#39;ll set up functions to inform the</span>
<span class="c1"># user when the link is established or closed</span>
<span class="n">link</span><span class="o">.</span><span class="n">set_link_established_callback</span><span class="p">(</span><span class="n">link_established</span><span class="p">)</span>
<span class="n">link</span><span class="o">.</span><span class="n">set_link_closed_callback</span><span class="p">(</span><span class="n">link_closed</span><span class="p">)</span>
<span class="c1"># Everything is set up, so let&#39;s enter a loop</span>
<span class="c1"># for the user to interact with the example</span>
<span class="n">client_loop</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">client_loop</span><span class="p">():</span>
<span class="k">global</span> <span class="n">server_link</span>
<span class="c1"># Wait for the link to become active</span>
<span class="k">while</span> <span class="ow">not</span> <span class="n">server_link</span><span class="p">:</span>
<span class="n">time</span><span class="o">.</span><span class="n">sleep</span><span class="p">(</span><span class="mf">0.1</span><span class="p">)</span>
<span class="n">should_quit</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">while</span> <span class="ow">not</span> <span class="n">should_quit</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;&gt; &quot;</span><span class="p">,</span> <span class="n">end</span><span class="o">=</span><span class="s2">&quot; &quot;</span><span class="p">)</span>
<span class="n">text</span> <span class="o">=</span> <span class="nb">input</span><span class="p">()</span>
<span class="c1"># Check if we should quit the example</span>
<span class="k">if</span> <span class="n">text</span> <span class="o">==</span> <span class="s2">&quot;quit&quot;</span> <span class="ow">or</span> <span class="n">text</span> <span class="o">==</span> <span class="s2">&quot;q&quot;</span> <span class="ow">or</span> <span class="n">text</span> <span class="o">==</span> <span class="s2">&quot;exit&quot;</span><span class="p">:</span>
<span class="n">should_quit</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">server_link</span><span class="o">.</span><span class="n">teardown</span><span class="p">()</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">server_link</span><span class="o">.</span><span class="n">request</span><span class="p">(</span>
<span class="s2">&quot;/random/text&quot;</span><span class="p">,</span>
<span class="n">data</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
<span class="n">response_callback</span> <span class="o">=</span> <span class="n">got_response</span><span class="p">,</span>
<span class="n">failed_callback</span> <span class="o">=</span> <span class="n">request_failed</span>
<span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Error while sending request over the link: &quot;</span><span class="o">+</span><span class="nb">str</span><span class="p">(</span><span class="n">e</span><span class="p">))</span>
<span class="n">should_quit</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">server_link</span><span class="o">.</span><span class="n">teardown</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">got_response</span><span class="p">(</span><span class="n">request_receipt</span><span class="p">):</span>
<span class="n">request_id</span> <span class="o">=</span> <span class="n">request_receipt</span><span class="o">.</span><span class="n">request_id</span>
<span class="n">response</span> <span class="o">=</span> <span class="n">request_receipt</span><span class="o">.</span><span class="n">response</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Got response for request &quot;</span><span class="o">+</span><span class="n">RNS</span><span class="o">.</span><span class="n">prettyhexrep</span><span class="p">(</span><span class="n">request_id</span><span class="p">)</span><span class="o">+</span><span class="s2">&quot;: &quot;</span><span class="o">+</span><span class="nb">str</span><span class="p">(</span><span class="n">response</span><span class="p">))</span>
<span class="k">def</span> <span class="nf">request_received</span><span class="p">(</span><span class="n">request_receipt</span><span class="p">):</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;The request &quot;</span><span class="o">+</span><span class="n">RNS</span><span class="o">.</span><span class="n">prettyhexrep</span><span class="p">(</span><span class="n">request_receipt</span><span class="o">.</span><span class="n">request_id</span><span class="p">)</span><span class="o">+</span><span class="s2">&quot; was received by the remote peer.&quot;</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">request_failed</span><span class="p">(</span><span class="n">request_receipt</span><span class="p">):</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;The request &quot;</span><span class="o">+</span><span class="n">RNS</span><span class="o">.</span><span class="n">prettyhexrep</span><span class="p">(</span><span class="n">request_receipt</span><span class="o">.</span><span class="n">request_id</span><span class="p">)</span><span class="o">+</span><span class="s2">&quot; failed.&quot;</span><span class="p">)</span>
<span class="c1"># This function is called when a link</span>
<span class="c1"># has been established with the server</span>
<span class="k">def</span> <span class="nf">link_established</span><span class="p">(</span><span class="n">link</span><span class="p">):</span>
<span class="c1"># We store a reference to the link</span>
<span class="c1"># instance for later use</span>
<span class="k">global</span> <span class="n">server_link</span>
<span class="n">server_link</span> <span class="o">=</span> <span class="n">link</span>
<span class="c1"># Inform the user that the server is</span>
<span class="c1"># connected</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Link established with server, hit enter to perform a request, or type in </span><span class="se">\&quot;</span><span class="s2">quit</span><span class="se">\&quot;</span><span class="s2"> to quit&quot;</span><span class="p">)</span>
<span class="c1"># When a link is closed, we&#39;ll inform the</span>
<span class="c1"># user, and exit the program</span>
<span class="k">def</span> <span class="nf">link_closed</span><span class="p">(</span><span class="n">link</span><span class="p">):</span>
<span class="k">if</span> <span class="n">link</span><span class="o">.</span><span class="n">teardown_reason</span> <span class="o">==</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Link</span><span class="o">.</span><span class="n">TIMEOUT</span><span class="p">:</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;The link timed out, exiting now&quot;</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">link</span><span class="o">.</span><span class="n">teardown_reason</span> <span class="o">==</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Link</span><span class="o">.</span><span class="n">DESTINATION_CLOSED</span><span class="p">:</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;The link was closed by the server, exiting now&quot;</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Link closed, exiting now&quot;</span><span class="p">)</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">Reticulum</span><span class="o">.</span><span class="n">exit_handler</span><span class="p">()</span>
<span class="n">time</span><span class="o">.</span><span class="n">sleep</span><span class="p">(</span><span class="mf">1.5</span><span class="p">)</span>
<span class="n">os</span><span class="o">.</span><span class="n">_exit</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="c1">##########################################################</span>
<span class="c1">#### Program Startup #####################################</span>
<span class="c1">##########################################################</span>
<span class="c1"># This part of the program runs at startup,</span>
<span class="c1"># and parses input of from the user, and then</span>
<span class="c1"># starts up the desired program mode.</span>
<span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s2">&quot;__main__&quot;</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">parser</span> <span class="o">=</span> <span class="n">argparse</span><span class="o">.</span><span class="n">ArgumentParser</span><span class="p">(</span><span class="n">description</span><span class="o">=</span><span class="s2">&quot;Simple request/response example&quot;</span><span class="p">)</span>
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span>
<span class="s2">&quot;-s&quot;</span><span class="p">,</span>
<span class="s2">&quot;--server&quot;</span><span class="p">,</span>
<span class="n">action</span><span class="o">=</span><span class="s2">&quot;store_true&quot;</span><span class="p">,</span>
<span class="n">help</span><span class="o">=</span><span class="s2">&quot;wait for incoming requests from clients&quot;</span>
<span class="p">)</span>
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span>
<span class="s2">&quot;--config&quot;</span><span class="p">,</span>
<span class="n">action</span><span class="o">=</span><span class="s2">&quot;store&quot;</span><span class="p">,</span>
<span class="n">default</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
<span class="n">help</span><span class="o">=</span><span class="s2">&quot;path to alternative Reticulum config directory&quot;</span><span class="p">,</span>
<span class="nb">type</span><span class="o">=</span><span class="nb">str</span>
<span class="p">)</span>
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span>
<span class="s2">&quot;destination&quot;</span><span class="p">,</span>
<span class="n">nargs</span><span class="o">=</span><span class="s2">&quot;?&quot;</span><span class="p">,</span>
<span class="n">default</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
<span class="n">help</span><span class="o">=</span><span class="s2">&quot;hexadecimal hash of the server destination&quot;</span><span class="p">,</span>
<span class="nb">type</span><span class="o">=</span><span class="nb">str</span>
<span class="p">)</span>
<span class="n">args</span> <span class="o">=</span> <span class="n">parser</span><span class="o">.</span><span class="n">parse_args</span><span class="p">()</span>
<span class="k">if</span> <span class="n">args</span><span class="o">.</span><span class="n">config</span><span class="p">:</span>
<span class="n">configarg</span> <span class="o">=</span> <span class="n">args</span><span class="o">.</span><span class="n">config</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">configarg</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">if</span> <span class="n">args</span><span class="o">.</span><span class="n">server</span><span class="p">:</span>
<span class="n">server</span><span class="p">(</span><span class="n">configarg</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">if</span> <span class="p">(</span><span class="n">args</span><span class="o">.</span><span class="n">destination</span> <span class="o">==</span> <span class="kc">None</span><span class="p">):</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;&quot;</span><span class="p">)</span>
<span class="n">parser</span><span class="o">.</span><span class="n">print_help</span><span class="p">()</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;&quot;</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">client</span><span class="p">(</span><span class="n">args</span><span class="o">.</span><span class="n">destination</span><span class="p">,</span> <span class="n">configarg</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">KeyboardInterrupt</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;&quot;</span><span class="p">)</span>
<span class="n">exit</span><span class="p">()</span>
</pre></div>
</div>
<p>This example can also be found at <a class="reference external" href="https://github.com/markqvist/Reticulum/blob/master/Examples/Request.py">https://github.com/markqvist/Reticulum/blob/master/Examples/Request.py</a>.</p>
</div>
<div class="section" id="filetransfer">
<span id="example-filetransfer"></span><h2>Filetransfer<a class="headerlink" href="#filetransfer" title="Permalink to this headline"></a></h2>
<p>The <em>Filetransfer</em> example implements a basic file-server program that
@ -1504,7 +1793,12 @@ interface to efficiently pass files of any size over a Reticulum <a class="refer
<span class="k">def</span> <span class="nf">client_request</span><span class="p">(</span><span class="n">message</span><span class="p">,</span> <span class="n">packet</span><span class="p">):</span>
<span class="k">global</span> <span class="n">serve_path</span>
<span class="n">filename</span> <span class="o">=</span> <span class="n">message</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="s2">&quot;utf-8&quot;</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">filename</span> <span class="o">=</span> <span class="n">message</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="s2">&quot;utf-8&quot;</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="n">filename</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">if</span> <span class="n">filename</span> <span class="ow">in</span> <span class="n">list_files</span><span class="p">():</span>
<span class="k">try</span><span class="p">:</span>
<span class="c1"># If we have the requested file, we&#39;ll</span>
@ -1986,6 +2280,7 @@ interface to efficiently pass files of any size over a Reticulum <a class="refer
<li><a class="reference internal" href="#echo">Echo</a></li>
<li><a class="reference internal" href="#link">Link</a></li>
<li><a class="reference internal" href="#example-identify">Identification</a></li>
<li><a class="reference internal" href="#requests-responses">Requests &amp; Responses</a></li>
<li><a class="reference internal" href="#filetransfer">Filetransfer</a></li>
</ul>
</li>
@ -2024,7 +2319,7 @@ interface to efficiently pass files of any size over a Reticulum <a class="refer
<li class="right" >
<a href="reference.html" title="API Reference"
>previous</a> |</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Examples</a></li>
</ul>
</div>

12
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@ -5,7 +5,7 @@
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Index &#8212; Reticulum Network Stack 0.2.1 beta documentation</title>
<title>Index &#8212; Reticulum Network Stack 0.2.2 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/classic.css" />
@ -23,7 +23,7 @@
<li class="right" style="margin-right: 10px">
<a href="#" title="General Index"
accesskey="I">index</a></li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Index</a></li>
</ul>
</div>
@ -103,6 +103,8 @@
</ul></td>
<td style="width: 33%; vertical-align: top;"><ul>
<li><a href="reference.html#RNS.Transport.deregister_announce_handler">deregister_announce_handler() (RNS.Transport static method)</a>
</li>
<li><a href="reference.html#RNS.Destination.deregister_request_handler">deregister_request_handler() (RNS.Destination method)</a>
</li>
<li><a href="reference.html#RNS.Destination">Destination (class in RNS)</a>
</li>
@ -261,9 +263,13 @@
<li><a href="reference.html#RNS.Identity.recall_app_data">recall_app_data() (RNS.Identity static method)</a>
</li>
<li><a href="reference.html#RNS.Transport.register_announce_handler">register_announce_handler() (RNS.Transport static method)</a>
</li>
<li><a href="reference.html#RNS.Destination.register_request_handler">register_request_handler() (RNS.Destination method)</a>
</li>
</ul></td>
<td style="width: 33%; vertical-align: top;"><ul>
<li><a href="reference.html#RNS.Link.request">request() (RNS.Link method)</a>
</li>
<li><a href="reference.html#RNS.Transport.request_path">request_path() (RNS.Transport static method)</a>
</li>
<li><a href="reference.html#RNS.Packet.resend">resend() (RNS.Packet method)</a>
@ -381,7 +387,7 @@
<li class="right" style="margin-right: 10px">
<a href="#" title="General Index"
>index</a></li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Index</a></li>
</ul>
</div>

6
docs/manual/gettingstartedfast.html
View File

@ -5,7 +5,7 @@
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Getting Started Fast &#8212; Reticulum Network Stack 0.2.1 beta documentation</title>
<title>Getting Started Fast &#8212; Reticulum Network Stack 0.2.2 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/classic.css" />
@ -31,7 +31,7 @@
<li class="right" >
<a href="whatis.html" title="What is Reticulum?"
accesskey="P">previous</a> |</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Getting Started Fast</a></li>
</ul>
</div>
@ -166,7 +166,7 @@ don’t use pip, but try this recipe:</p>
<li class="right" >
<a href="whatis.html" title="What is Reticulum?"
>previous</a> |</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Getting Started Fast</a></li>
</ul>
</div>

7
docs/manual/index.html
View File

@ -5,7 +5,7 @@
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Reticulum Network Stack Manual &#8212; Reticulum Network Stack 0.2.1 beta documentation</title>
<title>Reticulum Network Stack Manual &#8212; Reticulum Network Stack 0.2.2 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/classic.css" />
@ -27,7 +27,7 @@
<li class="right" >
<a href="whatis.html" title="What is Reticulum?"
accesskey="N">next</a> |</li>
<li class="nav-item nav-item-0"><a href="#">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="#">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Reticulum Network Stack Manual</a></li>
</ul>
</div>
@ -104,6 +104,7 @@ the development of Reticulum itself.</p>
<li class="toctree-l2"><a class="reference internal" href="examples.html#echo">Echo</a></li>
<li class="toctree-l2"><a class="reference internal" href="examples.html#link">Link</a></li>
<li class="toctree-l2"><a class="reference internal" href="examples.html#example-identify">Identification</a></li>
<li class="toctree-l2"><a class="reference internal" href="examples.html#requests-responses">Requests &amp; Responses</a></li>
<li class="toctree-l2"><a class="reference internal" href="examples.html#filetransfer">Filetransfer</a></li>
</ul>
</li>
@ -166,7 +167,7 @@ the development of Reticulum itself.</p>
<li class="right" >
<a href="whatis.html" title="What is Reticulum?"
>next</a> |</li>
<li class="nav-item nav-item-0"><a href="#">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="#">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Reticulum Network Stack Manual</a></li>
</ul>
</div>

BIN
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56
docs/manual/reference.html
View File

@ -5,7 +5,7 @@
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>API Reference &#8212; Reticulum Network Stack 0.2.1 beta documentation</title>
<title>API Reference &#8212; Reticulum Network Stack 0.2.2 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/classic.css" />
@ -31,7 +31,7 @@
<li class="right" >
<a href="understanding.html" title="Understanding Reticulum"
accesskey="P">previous</a> |</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">API Reference</a></li>
</ul>
</div>
@ -508,6 +508,39 @@ proofs should be returned for received packets.</p>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Destination.register_request_handler">
<span class="sig-name descname"><span class="pre">register_request_handler</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">response_generator</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">allow</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">allowed_list</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Destination.register_request_handler" title="Permalink to this definition"></a></dt>
<dd><p>Registers a request handler.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>path</strong> – The path for the request handler to be registered.</p></li>
<li><p><strong>response_generator</strong> – A function or method with the signature <em>response_generator(path, data, remote_identity_hash, requested_at)</em> to be called. Whatever this funcion returns will be sent as a response to the requester. If the function returns <code class="docutils literal notranslate"><span class="pre">None</span></code>, no response will be sent.</p></li>
<li><p><strong>allow</strong> – One of <code class="docutils literal notranslate"><span class="pre">RNS.Destination.ALLOW_NONE</span></code>, <code class="docutils literal notranslate"><span class="pre">RNS.Destination.ALLOW_ALL</span></code> or <code class="docutils literal notranslate"><span class="pre">RNS.Destination.ALLOW_LIST</span></code>. If <code class="docutils literal notranslate"><span class="pre">RNS.Destination.ALLOW_LIST</span></code> is set, the request handler will only respond to requests for identified peers in the supplied list.</p></li>
<li><p><strong>allowed_list</strong> – A list of <em>bytes-like</em> <a class="reference internal" href="#api-identity"><span class="std std-ref">RNS.Identity</span></a> hashes.</p></li>
</ul>
</dd>
<dt class="field-even">Raises</dt>
<dd class="field-even"><p><code class="docutils literal notranslate"><span class="pre">ValueError</span></code> if any of the supplied arguments are invalid.</p>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Destination.deregister_request_handler">
<span class="sig-name descname"><span class="pre">deregister_request_handler</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Destination.deregister_request_handler" title="Permalink to this definition"></a></dt>
<dd><p>Deregisters a request handler.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>path</strong> – The path for the request handler to be deregistered.</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>True if the handler was deregistered, otherwise False.</p>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Destination.create_keys">
<span class="sig-name descname"><span class="pre">create_keys</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Destination.create_keys" title="Permalink to this definition"></a></dt>
@ -785,6 +818,21 @@ thus preserved. This method can be used for authentication.</p>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Link.request">
<span class="sig-name descname"><span class="pre">request</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">data</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">response_callback</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">failed_callback</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Link.request" title="Permalink to this definition"></a></dt>
<dd><p>Sends a request to the remote peer.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>path</strong> – The request path.</p></li>
<li><p><strong>response_callback</strong> – A function or method with the signature <em>response_callback(request_receipt)</em> to be called when a response is received. See the <a class="reference internal" href="examples.html#example-request"><span class="std std-ref">Request Example</span></a> for more info.</p></li>
<li><p><strong>failed_callback</strong> – A function or method with the signature <em>failed_callback(request_receipt)</em> to be called when a request fails. See the <a class="reference internal" href="examples.html#example-request"><span class="std std-ref">Request Example</span></a> for more info.</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Link.no_inbound_for">
<span class="sig-name descname"><span class="pre">no_inbound_for</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Link.no_inbound_for" title="Permalink to this definition"></a></dt>
@ -934,7 +982,7 @@ compression, coordination and checksumming.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>data</strong> – The data to be transferred. Can be <em>bytes</em> or an open <em>file handle</em>. See the <span class="xref std std-ref">Filetransfer Example</span> for details.</p></li>
<li><p><strong>data</strong> – The data to be transferred. Can be <em>bytes</em> or an open <em>file handle</em>. See the <a class="reference internal" href="examples.html#example-filetransfer"><span class="std std-ref">Filetransfer Example</span></a> for details.</p></li>
<li><p><strong>link</strong> – The <a class="reference internal" href="#api-link"><span class="std std-ref">RNS.Link</span></a> instance on which to transfer the data.</p></li>
<li><p><strong>advertise</strong> – Whether to automatically advertise the resource. Can be <em>True</em> or <em>False</em>.</p></li>
<li><p><strong>auto_compress</strong> – Whether to auto-compress the resource. Can be <em>True</em> or <em>False</em>.</p></li>
@ -1094,7 +1142,7 @@ will announce it.</p>
<li class="right" >
<a href="understanding.html" title="Understanding Reticulum"
>previous</a> |</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">API Reference</a></li>
</ul>
</div>

6
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@ -5,7 +5,7 @@
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Search &#8212; Reticulum Network Stack 0.2.1 beta documentation</title>
<title>Search &#8212; Reticulum Network Stack 0.2.2 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/classic.css" />
@ -29,7 +29,7 @@
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Search</a></li>
</ul>
</div>
@ -85,7 +85,7 @@
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
>index</a></li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Search</a></li>
</ul>
</div>

2
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6
docs/manual/understanding.html
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@ -5,7 +5,7 @@
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Understanding Reticulum &#8212; Reticulum Network Stack 0.2.1 beta documentation</title>
<title>Understanding Reticulum &#8212; Reticulum Network Stack 0.2.2 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/classic.css" />
@ -31,7 +31,7 @@
<li class="right" >
<a href="gettingstartedfast.html" title="Getting Started Fast"
accesskey="P">previous</a> |</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Understanding Reticulum</a></li>
</ul>
</div>
@ -853,7 +853,7 @@ proof 11
<li class="right" >
<a href="gettingstartedfast.html" title="Getting Started Fast"
>previous</a> |</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">Understanding Reticulum</a></li>
</ul>
</div>

6
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@ -5,7 +5,7 @@
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>What is Reticulum? &#8212; Reticulum Network Stack 0.2.1 beta documentation</title>
<title>What is Reticulum? &#8212; Reticulum Network Stack 0.2.2 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/classic.css" />
@ -31,7 +31,7 @@
<li class="right" >
<a href="index.html" title="Reticulum Network Stack Manual"
accesskey="P">previous</a> |</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">What is Reticulum?</a></li>
</ul>
</div>
@ -182,7 +182,7 @@ network, and vice versa.</p>
<li class="right" >
<a href="index.html" title="Reticulum Network Stack Manual"
>previous</a> |</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.1 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-0"><a href="index.html">Reticulum Network Stack 0.2.2 beta documentation</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">What is Reticulum?</a></li>
</ul>
</div>

2
docs/source/conf.py
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@ -22,7 +22,7 @@ copyright = '2021, Mark Qvist'
author = 'Mark Qvist'
# The full version, including alpha/beta/rc tags
release = '0.2.1 beta'
release = '0.2.2 beta'
# -- General configuration ---------------------------------------------------

11
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@ -80,6 +80,17 @@ the link has been established.
This example can also be found at `<https://github.com/markqvist/Reticulum/blob/master/Examples/Identify.py>`_.
.. _example-request:
Requests & Responses
====================
The *Request* example explores sendig requests and receiving responses.
.. literalinclude:: ../../Examples/Request.py
This example can also be found at `<https://github.com/markqvist/Reticulum/blob/master/Examples/Request.py>`_.
.. _example-filetransfer:
Filetransfer