Server : nginx/1.18.0 System : Linux localhost 6.14.3-x86_64-linode168 #1 SMP PREEMPT_DYNAMIC Mon Apr 21 19:47:55 EDT 2025 x86_64 User : www-data ( 33) PHP Version : 8.0.16 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /lib/python3/dist-packages/twisted/conch/openssh_compat/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

# -*- test-case-name: twisted.conch.test.test_openssh_compat -*-
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
Factory for reading openssh configuration files: public keys, private keys, and
moduli file.
"""

import os, errno

from twisted.python import log
from twisted.python.util import runAsEffectiveUser

from twisted.conch.ssh import keys, factory, common
from twisted.conch.openssh_compat import primes



class OpenSSHFactory(factory.SSHFactory):
    dataRoot = '/usr/local/etc'
    # For openbsd which puts moduli in a different directory from keys.
    moduliRoot = '/usr/local/etc'


    def getPublicKeys(self):
        """
        Return the server public keys.
        """
        ks = {}
        for filename in os.listdir(self.dataRoot):
            if filename[:9] == 'ssh_host_' and filename[-8:]=='_key.pub':
                try:
                    k = keys.Key.fromFile(
                        os.path.join(self.dataRoot, filename))
                    t = common.getNS(k.blob())[0]
                    ks[t] = k
                except Exception as e:
                    log.msg('bad public key file %s: %s' % (filename, e))
        return ks


    def getPrivateKeys(self):
        """
        Return the server private keys.
        """
        privateKeys = {}
        for filename in os.listdir(self.dataRoot):
            if filename[:9] == 'ssh_host_' and filename[-4:]=='_key':
                fullPath = os.path.join(self.dataRoot, filename)
                try:
                    key = keys.Key.fromFile(fullPath)
                except IOError as e:
                    if e.errno == errno.EACCES:
                        # Not allowed, let's switch to root
                        key = runAsEffectiveUser(
                            0, 0, keys.Key.fromFile, fullPath)
                        privateKeys[key.sshType()] = key
                    else:
                        raise
                except Exception as e:
                    log.msg('bad private key file %s: %s' % (filename, e))
                else:
                    privateKeys[key.sshType()] = key
        return privateKeys


    def getPrimes(self):
        try:
            return primes.parseModuliFile(self.moduliRoot+'/moduli')
        except IOError:
            return None