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NomadNet/nomadnet/NomadNetworkApp.py

390 lines
15 KiB
Python
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import os
import time
import atexit
import RNS
import LXMF
import nomadnet
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"
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 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()
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()
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": "",
"announce_interval": None,
"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()
atexit.register(self.exit_handler)
self.message_router = LXMF.LXMRouter()
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.Transport.register_announce_handler(nomadnet.Conversation)
RNS.log("LXMF Router ready to receive on: "+RNS.prettyhexrep(self.lxmf_destination.hash))
self.directory = nomadnet.Directory.Directory(self)
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 announce_now(self):
self.lxmf_destination.announce()
self.peer_settings["last_announce"] = time.time()
self.save_peer_settings()
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 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 == "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:
for option in self.config["node"]:
value = self.config["node"][option]
if option == "enable_node":
value = self.config["node"].as_bool(option)
self.enable_node = value
@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
[textui]
# Amount of time to show intro screen
intro_time = 1
# Specify the number of colors to use
# valid colormodes are:
# monochrome, 16, 88, 256 and 24bit
#
# The default is a conservative 16 colors,
# but 256 colors can probably be used on
# most terminals. 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]
enable_node = no
'''.splitlines()
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