141 lines
4.2 KiB
Python
141 lines
4.2 KiB
Python
# ssh_manager/list_hosts.py
|
|
|
|
import os
|
|
import glob
|
|
import socket
|
|
import asyncio
|
|
from tabulate import tabulate
|
|
from collections import OrderedDict
|
|
|
|
from .utils import print_warning, print_error, Colors
|
|
|
|
async def check_ssh_port(ip_address, port):
|
|
"""
|
|
Attempt to open an SSH connection to see if the port is open.
|
|
Returns True if successful, False otherwise.
|
|
"""
|
|
try:
|
|
reader, writer = await asyncio.wait_for(
|
|
asyncio.open_connection(ip_address, port), timeout=1
|
|
)
|
|
writer.close()
|
|
await writer.wait_closed()
|
|
return True
|
|
except:
|
|
return False
|
|
|
|
def load_config_file(file_path):
|
|
"""
|
|
Parse a single SSH config file and return a list of host blocks.
|
|
Each block is an OrderedDict with keys like 'Host', 'HostName', etc.
|
|
"""
|
|
blocks = []
|
|
host_data = None
|
|
|
|
try:
|
|
with open(file_path, 'r') as f:
|
|
lines = f.readlines()
|
|
except Exception as e:
|
|
print_error(f"Error reading SSH config file {file_path}: {e}")
|
|
return blocks
|
|
|
|
for line in lines:
|
|
stripped_line = line.strip()
|
|
if not stripped_line or stripped_line.startswith('#'):
|
|
continue
|
|
|
|
if stripped_line.lower().startswith('host '):
|
|
host_labels = stripped_line.split()[1:]
|
|
for label in host_labels:
|
|
if '*' not in label:
|
|
if host_data:
|
|
blocks.append(host_data)
|
|
host_data = OrderedDict({'Host': label})
|
|
break
|
|
elif host_data:
|
|
if ' ' in stripped_line:
|
|
key, value = stripped_line.split(None, 1)
|
|
host_data[key] = value.strip()
|
|
|
|
if host_data:
|
|
blocks.append(host_data)
|
|
return blocks
|
|
|
|
async def check_host(host):
|
|
"""
|
|
Given a host block, resolve IP, check SSH port, identity file existence, etc.
|
|
Return a row for tabulate.
|
|
"""
|
|
host_label = host.get('Host', 'N/A')
|
|
hostname = host.get('HostName', 'N/A')
|
|
user = host.get('User', 'N/A')
|
|
port = int(host.get('Port', '22'))
|
|
identity_file = host.get('IdentityFile', 'N/A')
|
|
|
|
# Identity file check
|
|
if identity_file != 'N/A':
|
|
expanded_identity = os.path.expanduser(identity_file)
|
|
identity_exists = os.path.isfile(expanded_identity)
|
|
else:
|
|
identity_exists = False
|
|
|
|
identity_display = (
|
|
f"{Colors.GREEN}{identity_file}{Colors.RESET}"
|
|
if identity_exists
|
|
else f"{Colors.RED}{identity_file}{Colors.RESET}"
|
|
)
|
|
|
|
# Resolve IP
|
|
try:
|
|
ip_address = socket.gethostbyname(hostname)
|
|
colored_ip = f"{Colors.GREEN}{ip_address}{Colors.RESET}"
|
|
except socket.error:
|
|
ip_address = None
|
|
colored_ip = f"{Colors.RED}N/A{Colors.RESET}"
|
|
|
|
# Check if port is open
|
|
if ip_address:
|
|
port_open = await check_ssh_port(ip_address, port)
|
|
colored_port = (
|
|
f"{Colors.GREEN}{port}{Colors.RESET}"
|
|
if port_open
|
|
else f"{Colors.RED}{port}{Colors.RESET}"
|
|
)
|
|
else:
|
|
colored_port = f"{Colors.RED}{port}{Colors.RESET}"
|
|
|
|
return [
|
|
host_label,
|
|
user,
|
|
colored_port,
|
|
hostname,
|
|
colored_ip,
|
|
identity_display
|
|
]
|
|
|
|
async def list_hosts(conf_dir):
|
|
"""
|
|
List out all hosts found in ~/.ssh/conf/*/config, showing connectivity details.
|
|
If no hosts are found, print an empty table or a warning message.
|
|
"""
|
|
pattern = os.path.join(conf_dir, "*", "config")
|
|
conf_files = sorted(glob.glob(pattern))
|
|
|
|
all_host_blocks = []
|
|
for conf_file in conf_files:
|
|
blocks = load_config_file(conf_file)
|
|
all_host_blocks.extend(blocks)
|
|
|
|
headers = ["No.", "Host", "User", "Port", "HostName", "IP Address", "IdentityFile"]
|
|
if not all_host_blocks:
|
|
print_warning("No hosts found. The server list is empty.")
|
|
print("\nSSH Conf Subdirectory Host List")
|
|
print(tabulate([], headers=headers, tablefmt="grid"))
|
|
return
|
|
|
|
tasks = [check_host(h) for h in all_host_blocks]
|
|
results = await asyncio.gather(*tasks)
|
|
|
|
table = [[idx + 1] + row for idx, row in enumerate(results)]
|
|
print("\nSSH Conf Subdirectory Host List")
|
|
print(tabulate(table, headers=headers, tablefmt="grid"))
|