SSL 1.3 maybe
This commit is contained in:
emdee
parent
3e093a1a41
commit
5ff9bd0680
2 changed files with 255 additions and 39 deletions
181
tox-irc-sync.py
181
tox-irc-sync.py
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@ -13,6 +13,7 @@ import traceback
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from time import sleep
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from threading import Thread
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from random import shuffle
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from errno import errorcode
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from OpenSSL import SSL
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import warnings
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@ -38,15 +39,42 @@ import wrapper.toxencryptsave as tox_encrypt_save
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global LOG
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LOG = logging.getLogger('app.'+'ts')
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class SyniToxError(Exception): pass
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class SyniToxError(BaseException): pass
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NAME = 'SyniTox'
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SSL_TOR_RANGE = '172.'
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# possible CA locations picks the first one
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lCAs = ['/etc/ssl/cacert.pem',
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# debian
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'/etc/ssl/certs/']
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lCAs = [# debian and gentoo
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'/etc/ssl/certs/',
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]
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lCAfs = SSL._CERTIFICATE_FILE_LOCATIONS
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# openssl ciphers -s -v|grep 1.3 > /tmp/v1.3
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lOPENSSL_13_CIPHERS = ['TLS_AES_256_GCM_SHA384',
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'TLS_CHACHA20_POLY1305_SHA256',
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'TLS_AES_128_GCM_SHA256']
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lOPENSSL_12_CIPHERS = ['ECDHE-ECDSA-AES256-GCM-SHA384',
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'ECDHE-RSA-AES256-GCM-SHA384',
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'DHE-RSA-AES256-GCM-SHA384',
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'ECDHE-ECDSA-CHACHA20-POLY1305',
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'ECDHE-RSA-CHACHA20-POLY1305',
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'DHE-RSA-CHACHA20-POLY1305',
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'ECDHE-ECDSA-AES128-GCM-SHA256',
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'ECDHE-RSA-AES128-GCM-SHA256',
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'DHE-RSA-AES128-GCM-SHA256',
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'ECDHE-ECDSA-AES256-SHA384',
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'ECDHE-RSA-AES256-SHA384',
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'DHE-RSA-AES256-SHA256',
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'ECDHE-ECDSA-AES128-SHA256',
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'ECDHE-RSA-AES128-SHA256',
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'DHE-RSA-AES128-SHA256',
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'AES256-GCM-SHA384',
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'AES128-GCM-SHA256',
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'AES256-SHA256',
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'AES128-SHA256'
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]
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bot_toxname = 'SyniTox'
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iSocks5ErrorMax = 5
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iSocks5Error = 0
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# tox.py can be called by callbacks
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def LOG_ERROR(a): print('EROR> '+a)
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@ -62,8 +90,8 @@ def LOG_TRACE(a):
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if bVERBOSE: print('TRAC> '+a)
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# https://wiki.python.org/moin/SSL
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def ssl_verify_cb(HOST, override=False):
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assert HOST
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def ssl_verify_cb(host, override=False):
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assert host
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# wrapps host
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def ssl_verify(*args):
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"""
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@ -71,28 +99,33 @@ def ssl_verify_cb(HOST, override=False):
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should return true if verification passes and false otherwise
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"""
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LOG.debug(f"ssl_verify {len(args)} {args}")
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# app.ts WARNING SSL error: ([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],) # on .onion - fair enough
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if override: return True
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ssl_conn, x509, error_num, depth, return_code = args
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if error_num != 0:
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LOG.warn(f"ssl_verify error_num={error_num} {errorcode.get(error_num)}")
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return False
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if depth != 0:
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# don't validate names of root certificates
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return True
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if x509.get_subject().commonName == HOST:
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if x509.get_subject().commonName == host:
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return True
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LOG.warn(f"ssl_verify {x509.get_subject().commonName} {HOST}")
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# allow matching subdomains
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have , want = x509.get_subject().commonName, HOST
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have , want = x509.get_subject().commonName, host
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if len(have.split('.')) == len(want.split('.')) and len(want.split('.')) > 2:
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if have.split('.')[1:] == want.split('.')[1:]:
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LOG.warn(f"ssl_verify accepting {x509.get_subject().commonName} for {host}")
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return True
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return False
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return ssl_verify
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class SyniTox(Tox):
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def __init__(self,
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@ -183,38 +216,61 @@ class SyniTox(Tox):
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def start_ssl(self, HOST):
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if not self._ssl_context:
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if HOST.endswith('.onion'):
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try:
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OP_NO_TLSv1_3 = SSL._lib.SSL_OP_NO_TLSv1_3
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except AttributeError:
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if self._oArgs.irc_ssl == 'tlsv1.3':
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LOG.warning("SSL._lib.SSL_OP_NO_TLSv1_3 is not supported")
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LOG.warning("Downgrading SSL to tlsv1.2 ")
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self._oArgs.irc_ssl = 'tlsv1.2'
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else:
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LOG.debug("SSL._lib.SSL_OP_NO_TLSv1_3 is not supported")
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else:
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LOG.debug("SSL._lib.SSL_OP_NO_TLSv1_3 is supported")
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if self._oArgs.irc_connect.endswith('.onion') or \
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self._oArgs.irc_connect.startswith(SSL_TOR_RANGE):
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override = True
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else:
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override = False
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# TLSv1_3_METHOD does not exist
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context = SSL.Context(SSL.TLSv1_2_METHOD)
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# SSL.OP_NO_TLSv1_1 is allowed
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context.set_options(SSL.OP_NO_SSLv2|SSL.OP_NO_SSLv3|SSL.OP_NO_TLSv1)
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# this maybe necessary even for a 1.3 site to get the handshake
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# in pyOpenSSL - or was it a protocol downgrade attack?
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#? context.set_cipher_list("DEFAULT:SECLEVEL=1")
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# im getting SSL error: ([('SSL routines', 'tls_construct_client_hello', 'no protocols available')],)
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# if I use tlsv1.3 or tlsv1.2 without this on a tlsv1.3 capacble site
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if self._oArgs.irc_pem:
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key = self._oArgs.irc_pem
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assert os.path.exists(key), key
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val = SSL.VERIFY_PEER | SSL.VERIFY_FAIL_IF_NO_PEER_CERT
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LOG.info('Using keyfile: %s' % self._oArgs.irc_pem)
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if False:
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if True:
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key = self._oArgs.irc_pem.replace('.pem', '.crt')
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context.use_certificate_file(key, filetype=SSL.FILETYPE_PEM)
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if True:
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# key = self._oArgs.irc_pem.replace('.pem', '.key')
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key = self._oArgs.irc_pem.replace('.pem', '.key')
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assert os.path.exists(key), key
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context.use_privatekey_file(key, filetype=SSL.FILETYPE_PEM)
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else:
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val = SSL.VERIFY_PEER
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context.set_verify(val, ssl_verify_cb(HOST, override))
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assert os.path.exists(self._oArgs.irc_ca), self._oArgs.irc_ca
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if os.path.isdir(self._oArgs.irc_ca):
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context.load_verify_locations(capath=self._oArgs.irc_ca)
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else:
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context.load_verify_locations(cafile=self._oArgs.irc_ca)
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if False:
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pass
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elif self._oArgs.irc_ssl == 'tls1.2':
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if self._oArgs.irc_cafile:
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# context.load_verify_locations(capath=self._oArgs.irc_ca)
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context.load_verify_locations(self._oArgs.irc_cafile, capath=self._oArgs.irc_cadir)
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elif self._oArgs.irc_cadir:
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context.load_verify_locations(None, capath=self._oArgs.irc_cadir)
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if self._oArgs.irc_ssl == 'tlsv1.1':
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context.set_min_proto_version(SSL.TLS1_1_VERSION)
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elif self._oArgs.irc_ssl == 'tlsv1.2':
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context.set_cipher_list(bytes(' '.join(lOPENSSL_12_CIPHERS), 'UTF-8'))
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context.set_min_proto_version(SSL.TLS1_2_VERSION)
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elif self._oArgs.irc_ssl == 'tls1.3':
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elif self._oArgs.irc_ssl == 'tlsv1.3':
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#? context.set_cipher_list(bytes(' '.join(lOPENSSL_13_CIPHERS), 'UTF-8'))
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context.set_min_proto_version(SSL.TLS1_3_VERSION)
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self._ssl_context = context
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@ -432,13 +488,35 @@ class SyniTox(Tox):
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self.callback_friend_request(None)
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self.callback_friend_request(None)
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def diagnose_ciphers(self, irc):
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cipher_name = irc.get_cipher_name()
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LOG.info(f"cipher_name={irc.get_cipher_name()}")
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LOG.debug(f"get_cipher_list={irc.get_cipher_list()}")
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cipher_list=irc.get_cipher_list()
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for ci in lOPENSSL_13_CIPHERS:
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if ci in cipher_list: LOG.info(f"server supports v1.3 cipher {ci}")
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cipher_name = irc.get_cipher_name()
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LOG.info(f"cipher_name={irc.get_cipher_name()}")
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if self._oArgs.irc_ssl == 'tlsv1.2':
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assert cipher_name in lOPENSSL_12_CIPHERS, cipher_name
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elif self._oArgs.irc_ssl == 'tlsv1.3':
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assert cipher_name in lOPENSSL_13_CIPHERS, cipher_name
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for cert in irc.get_peer_cert_chain():
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# x509 objects - just want the /CN
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LOG.debug(f"{cert.get_subject()} {cert.get_issuer()}")
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assert irc.get_protocol_version_name().lower() == \
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self._oArgs.irc_ssl, \
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irc.get_protocol_version_name().lower()
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def irc_init(self):
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global iSocks5Error
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if not self.bRouted(): return
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nick = self._oArgs.irc_nick
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realname = self._oArgs.irc_name
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ident = self._oArgs.irc_ident
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LOG.info(f"irc_init proxy={self._oArgs.proxy_type}")
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LOG.info(f"irc_init proxy={self._oArgs.proxy_type} SSL={self._oArgs.irc_ssl}")
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try:
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if self._oArgs.proxy_type == 2:
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socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5,
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@ -474,27 +552,37 @@ class SyniTox(Tox):
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irc.set_tlsext_host_name(None)
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else:
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irc.set_tlsext_host_name(bytes(self._oArgs.irc_host, 'UTF-8'))
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irc.set_connect_state()
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#? irc.set_connect_state()
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while True:
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try:
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irc.do_handshake()
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except SSl.WantReadError:
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except SSL.WantReadError:
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rd,_,_ = select.select([irc], [], [], irc.gettimeout())
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if not rd:
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raise socket.timeout('timeout')
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continue
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except SSl.Error as e:
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except SSL.Error as e:
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raise
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break
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for cert in irc.get_peer_cert_chain():
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print(f"{cert.get_subject} {cert.get_issuer}")
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self.diagnose_ciphers(irc)
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else:
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irc.connect((ip, self._oArgs.irc_port))
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LOG.info(f"IRC {'SSL ' if self._oArgs.irc_ssl else ''} connected ")
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except wrapper_tests.socks.Socks5Error as e:
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if len(e.args[0]) == 2 and e.args[0][0] ==2:
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iSocks5Error += 1
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if iSocks5Error >= iSocks5ErrorMax:
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raise SyniToxError(f"{e.args}")
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if len(e.args[0]) == 2 and e.args[0][0] == 2:
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LOG.warn(f"Socks5Error: do you have Tor SafeSocks set? {e.args[0]}")
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elif len(e.args[0]) == 2 and e.args[0][0] == 5:
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# (5, 'Connection refused')
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LOG.warn(f"Socks5Error: do you have Tor running? {e.args[0]}")
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raise SyniToxError(f"{e.args}")
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elif len(e.args[0]) == 2 and e.args[0][0] in [1, 6]:
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# (6, 'TTL expired'), 1, ('general SOCKS server failure')
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# Missing mapping for virtual address '172.17.140.117'. Refusing.
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LOG.warn(f"Socks5Error: {e.args[0]}")
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return
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else:
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LOG.error(f"Socks5Error: {e.args}")
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@ -502,16 +590,18 @@ class SyniTox(Tox):
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except socket.timeout as e:
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LOG.warn(f"socket error: {e.args}")
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return
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except ( ConnectionRefusedError) as e:
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raise SyniToxError(f"{e.args}")
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except ( SSL.Error, ) as e:
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iSocks5Error += 1
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if iSocks5Error >= iSocks5ErrorMax:
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raise SyniToxError(f"{e.args}")
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LOG.warn(f"SSL error: {e.args}")
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return
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except (SSL.SysCallError, ) as e:
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LOG.warn(f"SSLSyscall error: {e.args}")
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LOG.warn(traceback.format_exc())
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return
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except wrapper_tests.socks.Socks5Error as e:
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# (2, 'connection not allowed by ruleset')
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raise
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except Exception as e:
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LOG.warn(f"Error: {e}")
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LOG.warn(traceback.format_exc())
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@ -524,6 +614,7 @@ class SyniTox(Tox):
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self._oArgs.irc_ident,
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self._oArgs.irc_host,
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self._oArgs.irc_name), 'UTF-8'))
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# OSError: [Errno 9] Bad file descriptor
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def dht_init(self):
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if not self.bRouted(): return
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@ -673,7 +764,11 @@ class SyniTox(Tox):
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else:
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LOG.error("you must provide a password to register")
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raise RuntimeError("you must provide a password to register")
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self.irc.send(bytes('JOIN %s\r\n' % self._oArgs.irc_chan, 'UTF-8'))
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try:
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self.irc.send(bytes('JOIN %s\r\n' % self._oArgs.irc_chan, 'UTF-8'))
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except BrokenPipeError:
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raise SyniToxError('BrokenPipeError')
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# put off init_groups until you have joined IRC
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self.init_groups()
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# Make sure we are in
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@ -1013,7 +1108,10 @@ def oArgparse(lArgv):
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for elt in lCAs:
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if os.path.exists(elt):
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CAcs.append(elt)
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break
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CAfs = []
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for elt in lCAfs:
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if os.path.exists(elt):
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CAfs.append(elt)
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parser.add_argument('--log_level', type=int, default=10)
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parser.add_argument('--bot_name', type=str, default=bot_toxname)
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@ -1038,9 +1136,12 @@ def oArgparse(lArgv):
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#
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parser.add_argument('--irc_ssl', type=str, default='',
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help="TLS version; empty is no SSL",
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choices=['', 'tls1.2', 'tls1.3'])
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parser.add_argument('--irc_ca', type=str,
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help="Certificate Authority file or directory",
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choices=['', 'tlsv1.1', 'tlsv1.2', 'tlsv1.3'])
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parser.add_argument('--irc_cafile', type=str,
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help="Certificate Authority file",
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default=CAfs[0])
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parser.add_argument('--irc_cadir', type=str,
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help="Certificate Authority directory",
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default=CAcs[0])
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parser.add_argument('--irc_pem', type=str, default='',
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help="Certificate and key as pem; use openssl req -x509 -nodes -newkey rsa:2048")
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@ -1100,6 +1201,10 @@ def main(lArgs=None):
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assert oTOX_OARGS.irc_host or oTOX_OARGS.irc_connect
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if not oTOX_OARGS.irc_connect:
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oTOX_OARGS.irc_connect = oTOX_OARGS.irc_host
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if oTOX_OARGS.irc_cadir:
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assert os.path.isdir(oTOX_OARGS.irc_cadir)
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if oTOX_OARGS.irc_cafile:
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assert os.path.isfile(oTOX_OARGS.irc_cafile)
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global oTOX_OPTIONS
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oTOX_OPTIONS = oToxygenToxOptions(oTOX_OARGS)
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ts.vSetupLogging(oTOX_OARGS)
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111
tox-irc-sync_test.bash
Normal file
111
tox-irc-sync_test.bash
Normal file
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@ -0,0 +1,111 @@
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#!/bin/bash
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#export LD_LIBRARY_PATH=/usr/local/lib
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#export TOXCORE_LIBS=/mnt/linuxPen19/var/local/src/c-toxcore/_build
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export TOXCORE_LIBS=/mnt/o/var/local/src/tox_profile/libs
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export PYTHONPATH=/mnt/o/var/local/src/toxygen_wrapper.git/
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[ -f /usr/local/bin/usr_local_tput.bash ] && \
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. /usr/local/bin/usr_local_tput.bash || {
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DBUG() { echo DEBUG $* ; }
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INFO() { echo INFO $* ; }
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WARN() { echo WARN $* ; }
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ERROR() { echo ERROR $* ; }
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}
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TLS=2
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a=`openssl ciphers -s -v|grep -c v1.3`
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if [ "$a" -lt 3 ] ; then
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WARN no SSSL TLSv1.3 ciphers available to the client.
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TLS=2
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fi
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declare -a RARGS
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RARGS=(
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--log_level 10
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)
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[ -n "$socks_proxy" ] && \
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RARGS+=(
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--proxy_type 2
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--proxy_port 9050
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--proxy_host 127.0.0.1
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)
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declare -a LARGS
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LARGS=(
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--irc_host irc.oftc.net
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--irc_port 7000
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--irc_ssl ""
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--irc_ident SyniTox
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--irc_name SyniTox
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--irc_nick SyniTox
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--irc_pass password
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)
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DBUG $?
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if [ $# -eq 0 -o "$1" = 1 ] ; then
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INFO No SSL
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python3 tox-irc-sync.py "${LARGS[@]}" "${RARGS[@]}" "$@"
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DBUG $?
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fi
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CIPHER_DOWNGRADE_OVER_TOR="
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||||
|
||||
Nmap scan report for irc.oftc.net (130.239.18.116)
|
||||
Host is up (0.26s latency).
|
||||
Other addresses for irc.oftc.net (not scanned): (null)
|
||||
rDNS record for 130.239.18.116: solenoid.acc.umu.se
|
||||
|
||||
PORT STATE SERVICE
|
||||
6697/tcp open ircs-u
|
||||
| ssl-enum-ciphers:
|
||||
| TLSv1.0:
|
||||
| ciphers:
|
||||
| TLS_DHE_RSA_WITH_AES_128_CBC_SHA (dh 2048) - A
|
||||
| compressors:
|
||||
| cipher preference: indeterminate
|
||||
| cipher preference error: Too few ciphers supported
|
||||
|_ least strength: A
|
||||
"
|
||||
# I know that site does v1.3 3 ciphers
|
||||
if [ $# -eq 0 -o "$1" = 2 ] ; then
|
||||
nmap --script ssl-enum-ciphers --proxies socks4://127.0.0.1:9050 -p 6697 irc.oftc.net
|
||||
|
||||
# oftcnet6xg6roj6d7id4y4cu6dchysacqj2ldgea73qzdagufflqxrid.onion
|
||||
# irc.oftc.net
|
||||
LARGS=(
|
||||
--irc_host irc.oftc.net
|
||||
--irc_port 6697
|
||||
--irc_ssl tlsv1.$TLS
|
||||
--irc_ident SyniTox
|
||||
--irc_name SyniTox
|
||||
--irc_nick SyniTox
|
||||
--irc_pass password
|
||||
--irc_pem $HOME/.config/ssl/irc.oftc.net/SyniTox.pem
|
||||
# E178E7B9BD9E540278118193AD2C84DEF9B35E85
|
||||
--irc_fp $HOME/.config/ssl/irc.oftc.net/SyniTox.fp
|
||||
--irc_cadir '/etc/ssl/certs'
|
||||
--irc_cafile /etc/ssl/cacert.pem
|
||||
)
|
||||
DBUG $?
|
||||
fi
|
||||
|
||||
if [ $# -eq 0 -o "$1" = 2 ] ; then
|
||||
INFO SSL
|
||||
python3 tox-irc-sync.py "${LARGS[@]}" "${RARGS[@]}" "$@"
|
||||
fi
|
||||
|
||||
ip=oftcnet6xg6roj6d7id4y4cu6dchysacqj2ldgea73qzdagufflqxrid.onion
|
||||
if [ $# -eq 0 -o "$1" = 3 ] ; then
|
||||
nmap --script ssl-enum-ciphers --proxies socks4://127.0.0.1:9050 -p 6697 $ip
|
||||
INFO Onion
|
||||
python3 tox-irc-sync.py "${LARGS[@]}" --irc_connect $ip "${RARGS[@]}" "$@"
|
||||
DBUG $?
|
||||
fi
|
||||
|
||||
ip=`tor-resolve -4 $ip`
|
||||
if [ $? -eq 0 -a -n "$ip" ] && [ $# -eq 0 -o "$1" = 4 ] ; then
|
||||
nmap --script ssl-enum-ciphers --proxies socks4://127.0.0.1:9050 -p 6697 $ip
|
||||
INFO IP $ip
|
||||
python3 tox-irc-sync.py "${LARGS[@]}" --irc_connect $ip "${RARGS[@]}" "$@"
|
||||
DBUG $?
|
||||
fi
|
||||
Loading…
Reference in a new issue