NomadNet/nomadnet/Node.py

122 lines
4.5 KiB
Python

import os
import RNS
import time
import threading
import RNS.vendor.umsgpack as msgpack
class Node:
JOB_INTERVAL = 5
def __init__(self, app):
RNS.log("Nomad Network Node starting...", RNS.LOG_VERBOSE)
self.app = app
self.identity = self.app.identity
self.destination = RNS.Destination(self.identity, RNS.Destination.IN, RNS.Destination.SINGLE, "nomadnetwork", "node")
self.last_announce = None
self.announce_interval = self.app.node_announce_interval
self.job_interval = Node.JOB_INTERVAL
self.should_run_jobs = True
self.app_data = None
self.name = self.app.node_name
self.register_pages()
self.register_files()
if self.name == None:
self.name = self.app.peer_settings["display_name"]+"'s Node"
RNS.log("Node \""+self.name+"\" ready for incoming connections on "+RNS.prettyhexrep(self.destination.hash), RNS.LOG_VERBOSE)
if self.app.node_announce_at_start:
self.announce()
def register_pages(self):
self.servedpages = []
self.scan_pages(self.app.pagespath)
if not self.app.pagespath+"index.mu" in self.servedpages:
self.destination.register_request_handler(
"/page/index.mu",
response_generator = self.serve_default_index,
allow = RNS.Destination.ALLOW_ALL
)
for page in self.servedpages:
request_path = "/page"+page.replace(self.app.pagespath, "")
self.destination.register_request_handler(
request_path,
response_generator = self.serve_page,
allow = RNS.Destination.ALLOW_ALL
)
def register_files(self):
self.servedfiles = []
self.scan_files(self.app.filespath)
def scan_pages(self, base_path):
files = [file for file in os.listdir(base_path) if os.path.isfile(os.path.join(base_path, file)) and file[:1] != "."]
directories = [file for file in os.listdir(base_path) if os.path.isdir(os.path.join(base_path, file)) and file[:1] != "."]
for file in files:
self.servedpages.append(base_path+"/"+file)
for directory in directories:
self.scan_pages(base_path+"/"+directory)
def scan_files(self, base_path):
files = [file for file in os.listdir(base_path) if os.path.isfile(os.path.join(base_path, file)) and file[:1] != "."]
directories = [file for file in os.listdir(base_path) if os.path.isdir(os.path.join(base_path, file)) and file[:1] != "."]
for file in files:
self.servedfiles.append(base_path+"/"+file)
for directory in directories:
self.scan_files(base_path+"/"+directory)
def serve_page(self, path, data, request_id, remote_identity, requested_at):
RNS.log("Request "+RNS.prettyhexrep(request_id)+" for: "+str(path), RNS.LOG_VERBOSE)
file_path = path.replace("/page", self.app.pagespath, 1)
try:
RNS.log("Serving file: "+file_path, RNS.LOG_VERBOSE)
fh = open(file_path, "rb")
response_data = fh.read()
fh.close()
return response_data
except Exception as e:
RNS.log("Error occurred while handling request "+RNS.prettyhexrep(request_id)+" for: "+str(path), RNS.LOG_ERROR)
RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
return None
def serve_default_index(self, path, data, request_id, remote_identity, requested_at):
RNS.log("Serving default index for request "+RNS.prettyhexrep(request_id)+" for: "+str(path), RNS.LOG_VERBOSE)
return DEFAULT_INDEX.encode("utf-8")
def announce(self):
self.app_data = self.name.encode("utf-8")
self.last_announce = time.time()
self.destination.announce(app_data=self.app_data)
def __jobs(self):
while self.should_run_jobs:
now = time.time()
if now > self.last_announce + self.announce_interval:
self.announce()
time.sleep(self.job_interval)
def peer_connected(link):
RNS.log("Peer connected to "+str(self.destination), RNS.LOG_INFO)
link.set_link_closed_callback(self.peer_disconnected)
DEFAULT_INDEX = '''>Default Home Page
This node is serving pages, but the home page file (index.mu) was not found in the page storage directory. This is an auto-generated placeholder.
If you are the node operator, you can define your own home page by creating a file named `*index.mu`* in the page storage directory.
'''