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.save(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.pub_bytes, 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 "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] intro_time = 1 # Specify the number of colors to use # valid colormodes are: # monochrome, 16, 88, 256 and 24bit # # The default is a conservative 88 colors, # but 256 colors can probably be used on # most terminals. Some terminals # colormode = monochrome # colormode = 16 colormode = 88 # colormode = 256 # colormode = 24bit [node] enable_node = No '''.splitlines()