import hashlib import time import re import os import logging from datetime import datetime from pwnagotchi.voice import Voice from pwnagotchi.mesh.peer import Peer from file_read_backwards import FileReadBackwards LAST_SESSION_FILE = '/root/.pwnagotchi-last-session' class LastSession(object): EPOCH_TOKEN = '[epoch ' EPOCH_PARSER = re.compile(r'^.+\[epoch (\d+)\] (.+)') EPOCH_DATA_PARSER = re.compile(r'([a-z_]+)=([^\s]+)') TRAINING_TOKEN = ' training epoch ' START_TOKEN = 'connecting to http' DEAUTH_TOKEN = 'deauthing ' ASSOC_TOKEN = 'sending association frame to ' HANDSHAKE_TOKEN = '!!! captured new handshake ' PEER_TOKEN = 'detected unit ' def __init__(self, config): self.config = config self.voice = Voice(lang=config['main']['lang']) self.path = config['main']['log'] self.last_session = [] self.last_session_id = '' self.last_saved_session_id = '' self.duration = '' self.duration_human = '' self.deauthed = 0 self.associated = 0 self.handshakes = 0 self.peers = 0 self.last_peer = None self.epochs = 0 self.train_epochs = 0 self.min_reward = 1000 self.max_reward = -1000 self.avg_reward = 0 self._peer_parser = re.compile( 'detected unit (.+)@(.+) \(v.+\) on channel \d+ \(([\d\-]+) dBm\) \[sid:(.+) pwnd_tot:(\d+) uptime:(\d+)\]') self.parsed = False def _get_last_saved_session_id(self): saved = '' try: with open(LAST_SESSION_FILE, 'rt') as fp: saved = fp.read().strip() except: saved = '' return saved def save_session_id(self): with open(LAST_SESSION_FILE, 'w+t') as fp: fp.write(self.last_session_id) self.last_saved_session_id = self.last_session_id def _parse_datetime(self, dt): dt = dt.split('.')[0] dt = dt.split(',')[0] dt = datetime.strptime(dt.split('.')[0], '%Y-%m-%d %H:%M:%S') return time.mktime(dt.timetuple()) def _parse_stats(self): self.duration = '' self.duration_human = '' self.deauthed = 0 self.associated = 0 self.handshakes = 0 self.epochs = 0 self.train_epochs = 0 self.peers = 0 self.last_peer = None self.min_reward = 1000 self.max_reward = -1000 self.avg_reward = 0 started_at = None stopped_at = None cache = {} for line in self.last_session: parts = line.split(']') if len(parts) < 2: continue try: line_timestamp = parts[0].strip('[') line = ']'.join(parts[1:]) stopped_at = self._parse_datetime(line_timestamp) if started_at is None: started_at = stopped_at if LastSession.DEAUTH_TOKEN in line and line not in cache: self.deauthed += 1 cache[line] = 1 elif LastSession.ASSOC_TOKEN in line and line not in cache: self.associated += 1 cache[line] = 1 elif LastSession.HANDSHAKE_TOKEN in line and line not in cache: self.handshakes += 1 cache[line] = 1 elif LastSession.TRAINING_TOKEN in line: self.train_epochs += 1 elif LastSession.EPOCH_TOKEN in line: self.epochs += 1 m = LastSession.EPOCH_PARSER.findall(line) if m: epoch_num, epoch_data = m[0] m = LastSession.EPOCH_DATA_PARSER.findall(epoch_data) for key, value in m: if key == 'reward': reward = float(value) self.avg_reward += reward if reward < self.min_reward: self.min_reward = reward elif reward > self.max_reward: self.max_reward = reward elif LastSession.PEER_TOKEN in line: m = self._peer_parser.findall(line) if m: name, pubkey, rssi, sid, pwnd_tot, uptime = m[0] if pubkey not in cache: self.last_peer = Peer({ 'session_id': sid, 'channel': 1, 'rssi': int(rssi), 'identity': pubkey, 'advertisement':{ 'name': name, 'pwnd_tot': int(pwnd_tot) }}) self.peers += 1 cache[pubkey] = self.last_peer else: cache[pubkey].adv['pwnd_tot'] = pwnd_tot except Exception as e: logging.error("error parsing line '%s': %s" % (line, e)) if started_at is not None: self.duration = stopped_at - started_at mins, secs = divmod(self.duration, 60) hours, mins = divmod(mins, 60) else: hours = mins = secs = 0 self.duration = '%02d:%02d:%02d' % (hours, mins, secs) self.duration_human = [] if hours > 0: self.duration_human.append('%d %s' % (hours, self.voice.hhmmss(hours, 'h'))) if mins > 0: self.duration_human.append('%d %s' % (mins, self.voice.hhmmss(mins, 'm'))) if secs > 0: self.duration_human.append('%d %s' % (secs, self.voice.hhmmss(secs, 's'))) self.duration_human = ', '.join(self.duration_human) self.avg_reward /= (self.epochs if self.epochs else 1) def parse(self): lines = [] if os.path.exists(self.path): with FileReadBackwards(self.path, encoding="utf-8") as fp: for line in fp: line = line.strip() if line != "" and line[0] != '[': continue lines.append(line) if LastSession.START_TOKEN in line: break lines.reverse() if len(lines) == 0: lines.append("Initial Session"); self.last_session = lines self.last_session_id = hashlib.md5(lines[0].encode()).hexdigest() self.last_saved_session_id = self._get_last_saved_session_id() self._parse_stats() self.parsed = True def is_new(self): return self.last_session_id != self.last_saved_session_id