NomadNet/nomadnet/NomadNetworkApp.py
2021-10-07 21:04:11 +02:00

600 lines
24 KiB
Python

import os
import time
import atexit
import RNS
import LXMF
import nomadnet
from nomadnet.Directory import DirectoryEntry
import RNS.vendor.umsgpack as msgpack
from ._version import __version__
from .vendor.configobj import ConfigObj
class NomadNetworkApp:
time_format = "%Y-%m-%d %H:%M:%S"
_shared_instance = None
configdir = os.path.expanduser("~")+"/.nomadnetwork"
def exit_handler(self):
RNS.log("Nomad Network Client exit handler executing...", RNS.LOG_VERBOSE)
RNS.log("Saving directory...", RNS.LOG_VERBOSE)
self.directory.save_to_disk()
RNS.log("Nomad Network Client exiting now", RNS.LOG_VERBOSE)
def __init__(self, configdir = None, rnsconfigdir = None):
self.version = __version__
self.enable_client = False
self.enable_node = False
self.identity = None
self.uimode = None
if configdir == None:
self.configdir = NomadNetworkApp.configdir
else:
self.configdir = configdir
if NomadNetworkApp._shared_instance == None:
NomadNetworkApp._shared_instance = self
self.rns = RNS.Reticulum(configdir = rnsconfigdir)
self.configpath = self.configdir+"/config"
self.logfilepath = self.configdir+"/logfile"
self.storagepath = self.configdir+"/storage"
self.identitypath = self.configdir+"/storage/identity"
self.cachepath = self.configdir+"/storage/cache"
self.resourcepath = self.configdir+"/storage/resources"
self.conversationpath = self.configdir+"/storage/conversations"
self.directorypath = self.configdir+"/storage/directory"
self.peersettingspath = self.configdir+"/storage/peersettings"
self.pagespath = self.configdir+"/storage/pages"
self.filespath = self.configdir+"/storage/files"
self.cachepath = self.configdir+"/storage/cache"
self.downloads_path = os.path.expanduser("~/Downloads")
self.firstrun = False
self.peer_announce_at_start = True
self.try_propagation_on_fail = True
if not os.path.isdir(self.storagepath):
os.makedirs(self.storagepath)
if not os.path.isdir(self.cachepath):
os.makedirs(self.cachepath)
if not os.path.isdir(self.resourcepath):
os.makedirs(self.resourcepath)
if not os.path.isdir(self.conversationpath):
os.makedirs(self.conversationpath)
if not os.path.isdir(self.pagespath):
os.makedirs(self.pagespath)
if not os.path.isdir(self.filespath):
os.makedirs(self.filespath)
if not os.path.isdir(self.cachepath):
os.makedirs(self.cachepath)
if os.path.isfile(self.configpath):
try:
self.config = ConfigObj(self.configpath)
try:
self.applyConfig()
except Exception as e:
RNS.log("The configuration file is invalid. The contained exception was: "+str(e), RNS.LOG_ERROR)
nomadnet.panic()
RNS.log("Configuration loaded from "+self.configpath)
except Exception as e:
RNS.log("Could not parse the configuration at "+self.configpath, RNS.LOG_ERROR)
RNS.log("Check your configuration file for errors!", RNS.LOG_ERROR)
nomadnet.panic()
else:
RNS.log("Could not load config file, creating default configuration file...")
self.createDefaultConfig()
self.firstrun = True
if os.path.isfile(self.identitypath):
try:
self.identity = RNS.Identity.from_file(self.identitypath)
if self.identity != None:
RNS.log("Loaded Primary Identity %s from %s" % (str(self.identity), self.identitypath))
else:
RNS.log("Could not load the Primary Identity from "+self.identitypath, RNS.LOG_ERROR)
nomadnet.panic()
except Exception as e:
RNS.log("Could not load the Primary Identity from "+self.identitypath, RNS.LOG_ERROR)
RNS.log("The contained exception was: %s" % (str(e)), RNS.LOG_ERROR)
nomadnet.panic()
else:
try:
RNS.log("No Primary Identity file found, creating new...")
self.identity = RNS.Identity()
self.identity.to_file(self.identitypath)
RNS.log("Created new Primary Identity %s" % (str(self.identity)))
except Exception as e:
RNS.log("Could not create and save a new Primary Identity", RNS.LOG_ERROR)
RNS.log("The contained exception was: %s" % (str(e)), RNS.LOG_ERROR)
nomadnet.panic()
if os.path.isfile(self.peersettingspath):
try:
file = open(self.peersettingspath, "rb")
self.peer_settings = msgpack.unpackb(file.read())
file.close()
if not "node_last_announce" in self.peer_settings:
self.peer_settings["node_last_announce"] = None
except Exception as e:
RNS.log("Could not load local peer settings from "+self.peersettingspath, RNS.LOG_ERROR)
RNS.log("The contained exception was: %s" % (str(e)), RNS.LOG_ERROR)
nomadnet.panic()
else:
try:
RNS.log("No peer settings file found, creating new...")
self.peer_settings = {
"display_name": "Anonymous Peer",
"announce_interval": None,
"last_announce": None,
"node_last_announce": None,
}
self.save_peer_settings()
RNS.log("Created new peer settings file")
except Exception as e:
RNS.log("Could not create and save a new peer settings file", RNS.LOG_ERROR)
RNS.log("The contained exception was: %s" % (str(e)), RNS.LOG_ERROR)
nomadnet.panic()
self.directory = nomadnet.Directory(self)
self.message_router = LXMF.LXMRouter(identity = self.identity, autopeer = True)
self.message_router.register_delivery_callback(self.lxmf_delivery)
self.lxmf_destination = self.message_router.register_delivery_identity(self.identity, display_name=self.peer_settings["display_name"])
self.lxmf_destination.set_default_app_data(self.get_display_name_bytes)
RNS.Identity.remember(
packet_hash=None,
destination_hash=self.lxmf_destination.hash,
public_key=self.identity.get_public_key(),
app_data=None
)
RNS.log("LXMF Router ready to receive on: "+RNS.prettyhexrep(self.lxmf_destination.hash))
if self.enable_node:
self.message_router.enable_propagation(self.storagepath)
RNS.log("LXMF Propagation Node started on: "+RNS.prettyhexrep(self.message_router.propagation_destination.hash))
self.node = nomadnet.Node(self)
else:
self.node = None
RNS.Transport.register_announce_handler(nomadnet.Conversation)
RNS.Transport.register_announce_handler(nomadnet.Directory)
self.autoselect_propagation_node()
if self.peer_announce_at_start:
self.announce_now()
atexit.register(self.exit_handler)
nomadnet.ui.spawn(self.uimode)
def set_display_name(self, display_name):
self.peer_settings["display_name"] = display_name
self.lxmf_destination.display_name = display_name
self.save_peer_settings()
def get_display_name(self):
return self.peer_settings["display_name"]
def get_display_name_bytes(self):
return self.peer_settings["display_name"].encode("utf-8")
def get_sync_status(self):
if self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_IDLE:
return "Idle"
elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_PATH_REQUESTED:
return "Path requested"
elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_LINK_ESTABLISHING:
return "Establishing link"
elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_LINK_ESTABLISHED:
return "Link established"
elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_REQUEST_SENT:
return "Receiving messages"
elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_RESPONSE_RECEIVED:
return "Messages received"
elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_COMPLETE:
new_msgs = self.message_router.propagation_transfer_last_result
if new_msgs == 0:
return "Done, no new messages"
else:
return "Downloaded "+str(new_msgs)+" new messages"
else:
return "Unknown"
def sync_status_show_percent(self):
if self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_IDLE:
return False
elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_PATH_REQUESTED:
return True
elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_LINK_ESTABLISHING:
return True
elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_LINK_ESTABLISHED:
return True
elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_REQUEST_SENT:
return True
elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_RESPONSE_RECEIVED:
return True
elif self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_COMPLETE:
return False
else:
return False
def get_sync_progress(self):
return self.message_router.propagation_transfer_progress
def request_lxmf_sync(self):
if self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_IDLE or self.message_router.propagation_transfer_state == LXMF.LXMRouter.PR_COMPLETE:
self.message_router.request_messages_from_propagation_node(self.identity)
def cancel_lxmf_sync(self):
if self.message_router.propagation_transfer_state != LXMF.LXMRouter.PR_IDLE:
self.message_router.cancel_propagation_node_requests()
def announce_now(self):
self.lxmf_destination.announce()
self.peer_settings["last_announce"] = time.time()
self.save_peer_settings()
def autoselect_propagation_node(self):
nodes = self.directory.known_nodes()
trusted_nodes = []
selected_node = None
best_hops = RNS.Transport.PATHFINDER_M+1
for node in nodes:
if node.trust_level == DirectoryEntry.TRUSTED:
hops = RNS.Transport.hops_to(node.source_hash)
if hops < best_hops:
best_hops = hops
selected_node = node
if selected_node == None:
RNS.log("Could not autoselect a prepagation node! LXMF propagation will not be available until a trusted node announces on the network.", RNS.LOG_WARNING)
else:
node_identity = RNS.Identity.recall(selected_node.source_hash)
if node_identity != None:
propagation_hash = RNS.Destination.hash_from_name_and_identity("lxmf.propagation", node_identity)
RNS.log("Selecting "+selected_node.display_name+" "+RNS.prettyhexrep(propagation_hash)+" as default LXMF propagation node", RNS.LOG_INFO)
self.message_router.set_outbound_propagation_node(propagation_hash)
else:
RNS.log("Could not recall identity for autoselected LXMF propagation node "+RNS.prettyhexrep(selected_node.source_hash), RNS.LOG_WARNING)
RNS.log("LXMF propagation will not be available until a trusted node announces on the network.", RNS.LOG_WARNING)
def save_peer_settings(self):
file = open(self.peersettingspath, "wb")
file.write(msgpack.packb(self.peer_settings))
file.close()
def lxmf_delivery(self, message):
time_string = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(message.timestamp))
signature_string = "Signature is invalid, reason undetermined"
if message.signature_validated:
signature_string = "Validated"
else:
if message.unverified_reason == LXMF.LXMessage.SIGNATURE_INVALID:
signature_string = "Invalid signature"
if message.unverified_reason == LXMF.LXMessage.SOURCE_UNKNOWN:
signature_string = "Cannot verify, source is unknown"
nomadnet.Conversation.ingest(message, self)
def conversations(self):
return nomadnet.Conversation.conversation_list(self)
def has_unread_conversations(self):
if len(nomadnet.Conversation.unread_conversations) > 0:
return True
else:
return False
def conversation_is_unread(self, source_hash):
if bytes.fromhex(source_hash) in nomadnet.Conversation.unread_conversations:
return True
else:
return False
def mark_conversation_read(self, source_hash):
if bytes.fromhex(source_hash) in nomadnet.Conversation.unread_conversations:
nomadnet.Conversation.unread_conversations.pop(bytes.fromhex(source_hash))
if os.path.isfile(self.conversationpath + "/" + source_hash + "/unread"):
os.unlink(self.conversationpath + "/" + source_hash + "/unread")
def createDefaultConfig(self):
self.config = ConfigObj(__default_nomadnet_config__)
self.config.filename = self.configpath
if not os.path.isdir(self.configdir):
os.makedirs(self.configdir)
self.config.write()
self.applyConfig()
def applyConfig(self):
if "logging" in self.config:
for option in self.config["logging"]:
value = self.config["logging"][option]
if option == "loglevel":
RNS.loglevel = int(value)
if RNS.loglevel < 0:
RNS.loglevel = 0
if RNS.loglevel > 7:
RNS.loglevel = 7
if option == "destination":
if value.lower() == "file":
RNS.logdest = RNS.LOG_FILE
if "logfile" in self.config["logging"]:
self.logfilepath = self.config["logging"]["logfile"]
RNS.logfile = self.logfilepath
else:
RNS.logdest = RNS.LOG_STDOUT
if "client" in self.config:
for option in self.config["client"]:
value = self.config["client"][option]
if option == "enable_client":
value = self.config["client"].as_bool(option)
self.enable_client = value
if option == "downloads_path":
value = self.config["client"]["downloads_path"]
self.downloads_path = os.path.expanduser(value)
if option == "announce_at_start":
value = self.config["client"].as_bool(option)
self.peer_announce_at_start = value
if option == "try_propagation_on_send_fail":
value = self.config["client"].as_bool(option)
self.try_propagation_on_fail = value
if option == "user_interface":
value = value.lower()
if value == "none":
self.uimode = nomadnet.ui.UI_NONE
if value == "menu":
self.uimode = nomadnet.ui.UI_MENU
if value == "text":
self.uimode = nomadnet.ui.UI_TEXT
if "textui" in self.config:
if not "intro_time" in self.config["textui"]:
self.config["textui"]["intro_time"] = 1
else:
self.config["textui"]["intro_time"] = self.config["textui"].as_int("intro_time")
if not "editor" in self.config["textui"]:
self.config["textui"]["editor"] = "editor"
if not "glyphs" in self.config["textui"]:
self.config["textui"]["glyphs"] = "unicode"
if not "mouse_enabled" in self.config["textui"]:
self.config["textui"]["mouse_enabled"] = True
else:
self.config["textui"]["mouse_enabled"] = self.config["textui"].as_bool("mouse_enabled")
if not "hide_guide" in self.config["textui"]:
self.config["textui"]["hide_guide"] = False
else:
self.config["textui"]["hide_guide"] = self.config["textui"].as_bool("hide_guide")
if not "animation_interval" in self.config["textui"]:
self.config["textui"]["animation_interval"] = 1
else:
self.config["textui"]["animation_interval"] = self.config["textui"].as_int("animation_interval")
if not "colormode" in self.config["textui"]:
self.config["textui"]["colormode"] = nomadnet.ui.COLORMODE_16
else:
if self.config["textui"]["colormode"].lower() == "monochrome":
self.config["textui"]["colormode"] = nomadnet.ui.TextUI.COLORMODE_MONO
elif self.config["textui"]["colormode"].lower() == "16":
self.config["textui"]["colormode"] = nomadnet.ui.TextUI.COLORMODE_16
elif self.config["textui"]["colormode"].lower() == "88":
self.config["textui"]["colormode"] = nomadnet.ui.TextUI.COLORMODE_88
elif self.config["textui"]["colormode"].lower() == "256":
self.config["textui"]["colormode"] = nomadnet.ui.TextUI.COLORMODE_256
elif self.config["textui"]["colormode"].lower() == "24bit":
self.config["textui"]["colormode"] = nomadnet.ui.TextUI.COLORMODE_TRUE
else:
raise ValueError("The selected Text UI color mode is invalid")
if not "theme" in self.config["textui"]:
self.config["textui"]["theme"] = nomadnet.ui.TextUI.THEME_DARK
else:
if self.config["textui"]["theme"].lower() == "dark":
self.config["textui"]["theme"] = nomadnet.ui.TextUI.THEME_DARK
elif self.config["textui"]["theme"].lower() == "light":
self.config["textui"]["theme"] = nomadnet.ui.TextUI.THEME_LIGHT
else:
raise ValueError("The selected Text UI theme is invalid")
else:
raise KeyError("Text UI selected in configuration file, but no [textui] section found")
if value == "graphical":
self.uimode = nomadnet.ui.UI_GRAPHICAL
if value == "web":
self.uimode = nomadnet.ui.UI_WEB
if "node" in self.config:
if not "enable_node" in self.config["node"]:
self.enable_node = False
else:
self.enable_node = self.config["node"].as_bool("enable_node")
if not "node_name" in self.config["node"]:
self.node_name = None
else:
value = self.config["node"]["node_name"]
if value.lower() == "none":
self.node_name = None
else:
self.node_name = self.config["node"]["node_name"]
if not "announce_at_start" in self.config["node"]:
self.node_announce_at_start = False
else:
value = self.config["node"].as_bool("announce_at_start")
self.node_announce_at_start = value
if not "announce_interval" in self.config["node"]:
self.node_announce_interval = 720
else:
value = self.config["node"].as_int("announce_interval")
if value < 1:
value = 1
self.node_announce_interval = value
if "pages_path" in self.config["node"]:
self.pagespath = self.config["node"]["pages_path"]
if "files_path" in self.config["node"]:
self.filespath = self.config["node"]["files_path"]
@staticmethod
def get_shared_instance():
if NomadNetworkApp._shared_instance != None:
return NomadNetworkApp._shared_instance
else:
raise UnboundLocalError("No Nomad Network applications have been instantiated yet")
def quit(self):
RNS.log("Nomad Network Client shutting down...")
os._exit(0)
# Default configuration file:
__default_nomadnet_config__ = '''# This is the default Nomad Network config file.
# You should probably edit it to suit your needs and use-case,
[logging]
# Valid log levels are 0 through 7:
# 0: Log only critical information
# 1: Log errors and lower log levels
# 2: Log warnings and lower log levels
# 3: Log notices and lower log levels
# 4: Log info and lower (this is the default)
# 5: Verbose logging
# 6: Debug logging
# 7: Extreme logging
loglevel = 4
destination = file
[client]
enable_client = yes
user_interface = text
downloads_path = ~/Downloads
# By default, the peer is announced at startup
# to let other peers reach it immediately.
announce_at_start = yes
# By default, the client will try to deliver a
# message via the LXMF propagation network, if
# a direct delivery to the recipient is not
# possible.
try_propagation_on_send_fail = yes
[textui]
# Amount of time to show intro screen
intro_time = 1
# You can specify the display theme.
# theme = light
theme = dark
# Specify the number of colors to use
# valid colormodes are:
# monochrome, 16, 88, 256 and 24bit
#
# The default is a conservative 256 colors.
# If your terminal does not support this,
# you can lower it. Some terminals support
# 24 bit color.
# colormode = monochrome
# colormode = 16
# colormode = 88
colormode = 256
# colormode = 24bit
# By default, unicode glyphs are used. If
# you have a Nerd Font installed, you can
# enable this for a better user interface.
# You can also enable plain text glyphs if
# your terminal doesn't support unicode.
# glyphs = plain
glyphs = unicode
# glyphs = nerdfont
# You can specify whether mouse events
# should be considered as input to the
# application. On by default.
mouse_enabled = True
# What editor to use for editing text. By
# default the operating systems "editor"
# alias will be used.
editor = editor
# If you don't want the Guide section to
# show up in the menu, you can disable it.
hide_guide = no
[node]
# Whether to enable node hosting
enable_node = no
# The node name will be visible to other
# peers on the network, and included in
# announces.
node_name = None
# Automatic announce interval in minutes.
# 6 hours by default.
announce_interval = 360
# Whether to announce when the node starts
announce_at_start = Yes
'''.splitlines()