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File Name : socks.py

from base64 import b64encode
try:
    from collections.abc import Callable
except ImportError:
    from collections import Callable
from errno import EOPNOTSUPP, EINVAL, EAGAIN
import functools
from io import BytesIO
import logging
import os
from os import SEEK_CUR
import socket
import struct
import sys

__version__ = "1.7.1"

if os.name == "nt" and sys.version_info < (3, 0):
    try:
        import win_inet_pton
    except ImportError:
        raise ImportError(
            "To run PySocks on Windows you must install win_inet_pton")

log = logging.getLogger(__name__)

PROXY_TYPE_SOCKS4 = SOCKS4 = 1
PROXY_TYPE_SOCKS5 = SOCKS5 = 2
PROXY_TYPE_HTTP = HTTP = 3

PROXY_TYPES = {"SOCKS4": SOCKS4, "SOCKS5": SOCKS5, "HTTP": HTTP}
PRINTABLE_PROXY_TYPES = dict(zip(PROXY_TYPES.values(), PROXY_TYPES.keys()))

_orgsocket = _orig_socket = socket.socket

def set_self_blocking(function):

@functools.wraps(function)
    def wrapper(*args, **kwargs):
        self = args[0]
        try:
            _is_blocking = self.gettimeout()
            if _is_blocking == 0:
                self.setblocking(True)
            return function(*args, **kwargs)
        except Exception as e:
            raise
        finally:
            # set orgin blocking
            if _is_blocking == 0:
                self.setblocking(False)
    return wrapper

class ProxyError(IOError):
    """Socket_err contains original socket.error exception."""
    def __init__(self, msg, socket_err=None):
        self.msg = msg
        self.socket_err = socket_err

if socket_err:
            self.msg += ": {}".format(socket_err)

def __str__(self):
        return self.msg

class GeneralProxyError(ProxyError):
    pass

class ProxyConnectionError(ProxyError):
    pass

class SOCKS5AuthError(ProxyError):
    pass

class SOCKS5Error(ProxyError):
    pass

class SOCKS4Error(ProxyError):
    pass

class HTTPError(ProxyError):
    pass

SOCKS4_ERRORS = {
    0x5B: "Request rejected or failed",
    0x5C: ("Request rejected because SOCKS server cannot connect to identd on"
           " the client"),
    0x5D: ("Request rejected because the client program and identd report"
           " different user-ids")
}

SOCKS5_ERRORS = {
    0x01: "General SOCKS server failure",
    0x02: "Connection not allowed by ruleset",
    0x03: "Network unreachable",
    0x04: "Host unreachable",
    0x05: "Connection refused",
    0x06: "TTL expired",
    0x07: "Command not supported, or protocol error",
    0x08: "Address type not supported"
}

DEFAULT_PORTS = {SOCKS4: 1080, SOCKS5: 1080, HTTP: 8080}

def set_default_proxy(proxy_type=None, addr=None, port=None, rdns=True,
                      username=None, password=None):
    """Sets a default proxy.

All further socksocket objects will use the default unless explicitly
    changed. All parameters are as for socket.set_proxy()."""
    socksocket.default_proxy = (proxy_type, addr, port, rdns,
                                username.encode() if username else None,
                                password.encode() if password else None)

def setdefaultproxy(*args, **kwargs):
    if "proxytype" in kwargs:
        kwargs["proxy_type"] = kwargs.pop("proxytype")
    return set_default_proxy(*args, **kwargs)

def get_default_proxy():
    """Returns the default proxy, set by set_default_proxy."""
    return socksocket.default_proxy

getdefaultproxy = get_default_proxy

def wrap_module(module):
    """Attempts to replace a module's socket library with a SOCKS socket.

Must set a default proxy using set_default_proxy(...) first. This will
    only work on modules that import socket directly into the namespace;
    most of the Python Standard Library falls into this category."""
    if socksocket.default_proxy:
        module.socket.socket = socksocket
    else:
        raise GeneralProxyError("No default proxy specified")

wrapmodule = wrap_module

def create_connection(dest_pair,
                      timeout=None, source_address=None,
                      proxy_type=None, proxy_addr=None,
                      proxy_port=None, proxy_rdns=True,
                      proxy_username=None, proxy_password=None,
                      socket_options=None):
    """create_connection(dest_pair, *[, timeout], **proxy_args) -> socket object

Like socket.create_connection(), but connects to proxy
    before returning the socket object.

dest_pair - 2-tuple of (IP/hostname, port).
    **proxy_args - Same args passed to socksocket.set_proxy() if present.
    timeout - Optional socket timeout value, in seconds.
    source_address - tuple (host, port) for the socket to bind to as its source
    address before connecting (only for compatibility)
    """
    # Remove IPv6 brackets on the remote address and proxy address.
    remote_host, remote_port = dest_pair
    if remote_host.startswith("["):
        remote_host = remote_host.strip("[]")
    if proxy_addr and proxy_addr.startswith("["):
        proxy_addr = proxy_addr.strip("[]")

err = None

# Allow the SOCKS proxy to be on IPv4 or IPv6 addresses.
    for r in socket.getaddrinfo(proxy_addr, proxy_port, 0, socket.SOCK_STREAM):
        family, socket_type, proto, canonname, sa = r
        sock = None
        try:
            sock = socksocket(family, socket_type, proto)

if socket_options:
                for opt in socket_options:
                    sock.setsockopt(*opt)

if isinstance(timeout, (int, float)):
                sock.settimeout(timeout)

if proxy_type:
                sock.set_proxy(proxy_type, proxy_addr, proxy_port, proxy_rdns,
                               proxy_username, proxy_password)
            if source_address:
                sock.bind(source_address)

sock.connect((remote_host, remote_port))
            return sock

except (socket.error, ProxyError) as e:
            err = e
            if sock:
                sock.close()
                sock = None

if err:
        raise err

raise socket.error("gai returned empty list.")

class _BaseSocket(socket.socket):
    """Allows Python 2 delegated methods such as send() to be overridden."""
    def __init__(self, *pos, **kw):
        _orig_socket.__init__(self, *pos, **kw)

self._savedmethods = dict()
        for name in self._savenames:
            self._savedmethods[name] = getattr(self, name)
            delattr(self, name)  # Allows normal overriding mechanism to work

_savenames = list()

def _makemethod(name):
    return lambda self, *pos, **kw: self._savedmethods[name](*pos, **kw)
for name in ("sendto", "send", "recvfrom", "recv"):
    method = getattr(_BaseSocket, name, None)

# Determine if the method is not defined the usual way
    # as a function in the class.
    # Python 2 uses __slots__, so there are descriptors for each method,
    # but they are not functions.
    if not isinstance(method, Callable):
        _BaseSocket._savenames.append(name)
        setattr(_BaseSocket, name, _makemethod(name))

class socksocket(_BaseSocket):
    """socksocket([family[, type[, proto]]]) -> socket object

Open a SOCKS enabled socket. The parameters are the same as
    those of the standard socket init. In order for SOCKS to work,
    you must specify family=AF_INET and proto=0.
    The "type" argument must be either SOCK_STREAM or SOCK_DGRAM.
    """

default_proxy = None

def __init__(self, family=socket.AF_INET, type=socket.SOCK_STREAM,
                 proto=0, *args, **kwargs):
        if type not in (socket.SOCK_STREAM, socket.SOCK_DGRAM):
            msg = "Socket type must be stream or datagram, not {!r}"
            raise ValueError(msg.format(type))

super(socksocket, self).__init__(family, type, proto, *args, **kwargs)
        self._proxyconn = None  # TCP connection to keep UDP relay alive

if self.default_proxy:
            self.proxy = self.default_proxy
        else:
            self.proxy = (None, None, None, None, None, None)
        self.proxy_sockname = None
        self.proxy_peername = None

self._timeout = None

def _readall(self, file, count):
        """Receive EXACTLY the number of bytes requested from the file object.

Blocks until the required number of bytes have been received."""
        data = b""
        while len(data) < count:
            d = file.read(count - len(data))
            if not d:
                raise GeneralProxyError("Connection closed unexpectedly")
            data += d
        return data

def settimeout(self, timeout):
        self._timeout = timeout
        try:
            # test if we're connected, if so apply timeout
            peer = self.get_proxy_peername()
            super(socksocket, self).settimeout(self._timeout)
        except socket.error:
            pass

def gettimeout(self):
        return self._timeout

def setblocking(self, v):
        if v:
            self.settimeout(None)
        else:
            self.settimeout(0.0)

def set_proxy(self, proxy_type=None, addr=None, port=None, rdns=True,
                  username=None, password=None):
        """ Sets the proxy to be used.

proxy_type -  The type of the proxy to be used. Three types
                        are supported: PROXY_TYPE_SOCKS4 (including socks4a),
                        PROXY_TYPE_SOCKS5 and PROXY_TYPE_HTTP
        addr -        The address of the server (IP or DNS).
        port -        The port of the server. Defaults to 1080 for SOCKS
                        servers and 8080 for HTTP proxy servers.
        rdns -        Should DNS queries be performed on the remote side
                       (rather than the local side). The default is True.
                       Note: This has no effect with SOCKS4 servers.
        username -    Username to authenticate with to the server.
                       The default is no authentication.
        password -    Password to authenticate with to the server.
                       Only relevant when username is also provided."""
        self.proxy = (proxy_type, addr, port, rdns,
                      username.encode() if username else None,
                      password.encode() if password else None)

def setproxy(self, *args, **kwargs):
        if "proxytype" in kwargs:
            kwargs["proxy_type"] = kwargs.pop("proxytype")
        return self.set_proxy(*args, **kwargs)

def bind(self, *pos, **kw):
        """Implements proxy connection for UDP sockets.

Happens during the bind() phase."""
        (proxy_type, proxy_addr, proxy_port, rdns, username,
         password) = self.proxy
        if not proxy_type or self.type != socket.SOCK_DGRAM:
            return _orig_socket.bind(self, *pos, **kw)

if self._proxyconn:
            raise socket.error(EINVAL, "Socket already bound to an address")
        if proxy_type != SOCKS5:
            msg = "UDP only supported by SOCKS5 proxy type"
            raise socket.error(EOPNOTSUPP, msg)
        super(socksocket, self).bind(*pos, **kw)

# Need to specify actual local port because
        # some relays drop packets if a port of zero is specified.
        # Avoid specifying host address in case of NAT though.
        _, port = self.getsockname()
        dst = ("0", port)

self._proxyconn = _orig_socket()
        proxy = self._proxy_addr()
        self._proxyconn.connect(proxy)

UDP_ASSOCIATE = b"\x03"
        _, relay = self._SOCKS5_request(self._proxyconn, UDP_ASSOCIATE, dst)

# The relay is most likely on the same host as the SOCKS proxy,
        # but some proxies return a private IP address (10.x.y.z)
        host, _ = proxy
        _, port = relay
        super(socksocket, self).connect((host, port))
        super(socksocket, self).settimeout(self._timeout)
        self.proxy_sockname = ("0.0.0.0", 0)  # Unknown

def sendto(self, bytes, *args, **kwargs):
        if self.type != socket.SOCK_DGRAM:
            return super(socksocket, self).sendto(bytes, *args, **kwargs)
        if not self._proxyconn:
            self.bind(("", 0))

address = args[-1]
        flags = args[:-1]

header = BytesIO()
        RSV = b"\x00\x00"
        header.write(RSV)
        STANDALONE = b"\x00"
        header.write(STANDALONE)
        self._write_SOCKS5_address(address, header)

sent = super(socksocket, self).send(header.getvalue() + bytes, *flags,
                                            **kwargs)
        return sent - header.tell()

def send(self, bytes, flags=0, **kwargs):
        if self.type == socket.SOCK_DGRAM:
            return self.sendto(bytes, flags, self.proxy_peername, **kwargs)
        else:
            return super(socksocket, self).send(bytes, flags, **kwargs)

def recvfrom(self, bufsize, flags=0):
        if self.type != socket.SOCK_DGRAM:
            return super(socksocket, self).recvfrom(bufsize, flags)
        if not self._proxyconn:
            self.bind(("", 0))

buf = BytesIO(super(socksocket, self).recv(bufsize + 1024, flags))
        buf.seek(2, SEEK_CUR)
        frag = buf.read(1)
        if ord(frag):
            raise NotImplementedError("Received UDP packet fragment")
        fromhost, fromport = self._read_SOCKS5_address(buf)

if self.proxy_peername:
            peerhost, peerport = self.proxy_peername
            if fromhost != peerhost or peerport not in (0, fromport):
                raise socket.error(EAGAIN, "Packet filtered")

return (buf.read(bufsize), (fromhost, fromport))

def recv(self, *pos, **kw):
        bytes, _ = self.recvfrom(*pos, **kw)
        return bytes

def close(self):
        if self._proxyconn:
            self._proxyconn.close()
        return super(socksocket, self).close()

def get_proxy_sockname(self):
        """Returns the bound IP address and port number at the proxy."""
        return self.proxy_sockname

getproxysockname = get_proxy_sockname

def get_proxy_peername(self):
        """
        Returns the IP and port number of the proxy.
        """
        return self.getpeername()

getproxypeername = get_proxy_peername

def get_peername(self):
        """Returns the IP address and port number of the destination machine.

Note: get_proxy_peername returns the proxy."""
        return self.proxy_peername

getpeername = get_peername

def _negotiate_SOCKS5(self, *dest_addr):
        """Negotiates a stream connection through a SOCKS5 server."""
        CONNECT = b"\x01"
        self.proxy_peername, self.proxy_sockname = self._SOCKS5_request(
            self, CONNECT, dest_addr)

def _SOCKS5_request(self, conn, cmd, dst):
        """
        Send SOCKS5 request with given command (CMD field) and
        address (DST field). Returns resolved DST address that was used.
        """
        proxy_type, addr, port, rdns, username, password = self.proxy

writer = conn.makefile("wb")
        reader = conn.makefile("rb", 0)  # buffering=0 renamed in Python 3
        try:
            # First we'll send the authentication packages we support.
            if username and password:
                # The username/password details were supplied to the
                # set_proxy method so we support the USERNAME/PASSWORD
                # authentication (in addition to the standard none).
                writer.write(b"\x05\x02\x00\x02")
            else:
                # No username/password were entered, therefore we
                # only support connections with no authentication.
                writer.write(b"\x05\x01\x00")

# We'll receive the server's response to determine which
            # method was selected
            writer.flush()
            chosen_auth = self._readall(reader, 2)

if chosen_auth[0:1] != b"\x05":
                # Note: string[i:i+1] is used because indexing of a bytestring
                # via bytestring[i] yields an integer in Python 3
                raise GeneralProxyError(
                    "SOCKS5 proxy server sent invalid data")

# Check the chosen authentication method

if chosen_auth[1:2] == b"\x02":
                # Okay, we need to perform a basic username/password
                # authentication.
                if not (username and password):
                    # Although we said we don't support authentication, the
                    # server may still request basic username/password
                    # authentication
                    raise SOCKS5AuthError("No username/password supplied. "
                                          "Server requested username/password"
                                          " authentication")

writer.write(b"\x01" + chr(len(username)).encode()
                             + username
                             + chr(len(password)).encode()
                             + password)
                writer.flush()
                auth_status = self._readall(reader, 2)
                if auth_status[0:1] != b"\x01":
                    # Bad response
                    raise GeneralProxyError(
                        "SOCKS5 proxy server sent invalid data")
                if auth_status[1:2] != b"\x00":
                    # Authentication failed
                    raise SOCKS5AuthError("SOCKS5 authentication failed")

# Otherwise, authentication succeeded

# No authentication is required if 0x00
            elif chosen_auth[1:2] != b"\x00":
                # Reaching here is always bad
                if chosen_auth[1:2] == b"\xFF":
                    raise SOCKS5AuthError(
                        "All offered SOCKS5 authentication methods were"
                        " rejected")
                else:
                    raise GeneralProxyError(
                        "SOCKS5 proxy server sent invalid data")

# Now we can request the actual connection
            writer.write(b"\x05" + cmd + b"\x00")
            resolved = self._write_SOCKS5_address(dst, writer)
            writer.flush()

# Get the response
            resp = self._readall(reader, 3)
            if resp[0:1] != b"\x05":
                raise GeneralProxyError(
                    "SOCKS5 proxy server sent invalid data")

status = ord(resp[1:2])
            if status != 0x00:
                # Connection failed: server returned an error
                error = SOCKS5_ERRORS.get(status, "Unknown error")
                raise SOCKS5Error("{:#04x}: {}".format(status, error))

# Get the bound address/port
            bnd = self._read_SOCKS5_address(reader)

super(socksocket, self).settimeout(self._timeout)
            return (resolved, bnd)
        finally:
            reader.close()
            writer.close()

def _write_SOCKS5_address(self, addr, file):
        """
        Return the host and port packed for the SOCKS5 protocol,
        and the resolved address as a tuple object.
        """
        host, port = addr
        proxy_type, _, _, rdns, username, password = self.proxy
        family_to_byte = {socket.AF_INET: b"\x01", socket.AF_INET6: b"\x04"}

# If the given destination address is an IP address, we'll
        # use the IP address request even if remote resolving was specified.
        # Detect whether the address is IPv4/6 directly.
        for family in (socket.AF_INET, socket.AF_INET6):
            try:
                addr_bytes = socket.inet_pton(family, host)
                file.write(family_to_byte[family] + addr_bytes)
                host = socket.inet_ntop(family, addr_bytes)
                file.write(struct.pack(">H", port))
                return host, port
            except socket.error:
                continue

# Well it's not an IP number, so it's probably a DNS name.
        if rdns:
            # Resolve remotely
            host_bytes = host.encode("idna")
            file.write(b"\x03" + chr(len(host_bytes)).encode() + host_bytes)
        else:
            # Resolve locally
            addresses = socket.getaddrinfo(host, port, socket.AF_UNSPEC,
                                           socket.SOCK_STREAM,
                                           socket.IPPROTO_TCP,
                                           socket.AI_ADDRCONFIG)
            # We can't really work out what IP is reachable, so just pick the
            # first.
            target_addr = addresses[0]
            family = target_addr[0]
            host = target_addr[4][0]

addr_bytes = socket.inet_pton(family, host)
            file.write(family_to_byte[family] + addr_bytes)
            host = socket.inet_ntop(family, addr_bytes)
        file.write(struct.pack(">H", port))
        return host, port

def _read_SOCKS5_address(self, file):
        atyp = self._readall(file, 1)
        if atyp == b"\x01":
            addr = socket.inet_ntoa(self._readall(file, 4))
        elif atyp == b"\x03":
            length = self._readall(file, 1)
            addr = self._readall(file, ord(length))
        elif atyp == b"\x04":
            addr = socket.inet_ntop(socket.AF_INET6, self._readall(file, 16))
        else:
            raise GeneralProxyError("SOCKS5 proxy server sent invalid data")

port = struct.unpack(">H", self._readall(file, 2))[0]
        return addr, port

def _negotiate_SOCKS4(self, dest_addr, dest_port):
        """Negotiates a connection through a SOCKS4 server."""
        proxy_type, addr, port, rdns, username, password = self.proxy

writer = self.makefile("wb")
        reader = self.makefile("rb", 0)  # buffering=0 renamed in Python 3
        try:
            # Check if the destination address provided is an IP address
            remote_resolve = False
            try:
                addr_bytes = socket.inet_aton(dest_addr)
            except socket.error:
                # It's a DNS name. Check where it should be resolved.
                if rdns:
                    addr_bytes = b"\x00\x00\x00\x01"
                    remote_resolve = True
                else:
                    addr_bytes = socket.inet_aton(
                        socket.gethostbyname(dest_addr))

# Construct the request packet
            writer.write(struct.pack(">BBH", 0x04, 0x01, dest_port))
            writer.write(addr_bytes)

# The username parameter is considered userid for SOCKS4
            if username:
                writer.write(username)
            writer.write(b"\x00")

# DNS name if remote resolving is required
            # NOTE: This is actually an extension to the SOCKS4 protocol
            # called SOCKS4A and may not be supported in all cases.
            if remote_resolve:
                writer.write(dest_addr.encode("idna") + b"\x00")
            writer.flush()

# Get the response from the server
            resp = self._readall(reader, 8)
            if resp[0:1] != b"\x00":
                # Bad data
                raise GeneralProxyError(
                    "SOCKS4 proxy server sent invalid data")

status = ord(resp[1:2])
            if status != 0x5A:
                # Connection failed: server returned an error
                error = SOCKS4_ERRORS.get(status, "Unknown error")
                raise SOCKS4Error("{:#04x}: {}".format(status, error))

# Get the bound address/port
            self.proxy_sockname = (socket.inet_ntoa(resp[4:]),
                                   struct.unpack(">H", resp[2:4])[0])
            if remote_resolve:
                self.proxy_peername = socket.inet_ntoa(addr_bytes), dest_port
            else:
                self.proxy_peername = dest_addr, dest_port
        finally:
            reader.close()
            writer.close()

def _negotiate_HTTP(self, dest_addr, dest_port):
        """Negotiates a connection through an HTTP server.

NOTE: This currently only supports HTTP CONNECT-style proxies."""
        proxy_type, addr, port, rdns, username, password = self.proxy

# If we need to resolve locally, we do this now
        addr = dest_addr if rdns else socket.gethostbyname(dest_addr)

http_headers = [
            (b"CONNECT " + addr.encode("idna") + b":"
             + str(dest_port).encode() + b" HTTP/1.1"),
            b"Host: " + dest_addr.encode("idna")
        ]

if username and password:
            http_headers.append(b"Proxy-Authorization: basic "
                                + b64encode(username + b":" + password))

http_headers.append(b"\r\n")

self.sendall(b"\r\n".join(http_headers))

# We just need the first line to check if the connection was successful
        fobj = self.makefile()
        status_line = fobj.readline()
        fobj.close()

if not status_line:
            raise GeneralProxyError("Connection closed unexpectedly")

try:
            proto, status_code, status_msg = status_line.split(" ", 2)
        except ValueError:
            raise GeneralProxyError("HTTP proxy server sent invalid response")

if not proto.startswith("HTTP/"):
            raise GeneralProxyError(
                "Proxy server does not appear to be an HTTP proxy")

try:
            status_code = int(status_code)
        except ValueError:
            raise HTTPError(
                "HTTP proxy server did not return a valid HTTP status")

if status_code != 200:
            error = "{}: {}".format(status_code, status_msg)
            if status_code in (400, 403, 405):
                # It's likely that the HTTP proxy server does not support the
                # CONNECT tunneling method
                error += ("\n[*] Note: The HTTP proxy server may not be"
                          " supported by PySocks (must be a CONNECT tunnel"
                          " proxy)")
            raise HTTPError(error)

self.proxy_sockname = (b"0.0.0.0", 0)
        self.proxy_peername = addr, dest_port

_proxy_negotiators = {
                           SOCKS4: _negotiate_SOCKS4,
                           SOCKS5: _negotiate_SOCKS5,
                           HTTP: _negotiate_HTTP
                         }

@set_self_blocking
    def connect(self, dest_pair, catch_errors=None):
        """
        Connects to the specified destination through a proxy.
        Uses the same API as socket's connect().
        To select the proxy server, use set_proxy().

dest_pair - 2-tuple of (IP/hostname, port).
        """
        if len(dest_pair) != 2 or dest_pair[0].startswith("["):
            # Probably IPv6, not supported -- raise an error, and hope
            # Happy Eyeballs (RFC6555) makes sure at least the IPv4
            # connection works...
            raise socket.error("PySocks doesn't support IPv6: %s"
                               % str(dest_pair))

dest_addr, dest_port = dest_pair

if self.type == socket.SOCK_DGRAM:
            if not self._proxyconn:
                self.bind(("", 0))
            dest_addr = socket.gethostbyname(dest_addr)

# If the host address is INADDR_ANY or similar, reset the peer
            # address so that packets are received from any peer
            if dest_addr == "0.0.0.0" and not dest_port:
                self.proxy_peername = None
            else:
                self.proxy_peername = (dest_addr, dest_port)
            return

(proxy_type, proxy_addr, proxy_port, rdns, username,
         password) = self.proxy

# Do a minimal input check first
        if (not isinstance(dest_pair, (list, tuple))
                or len(dest_pair) != 2
                or not dest_addr
                or not isinstance(dest_port, int)):
            # Inputs failed, raise an error
            raise GeneralProxyError(
                "Invalid destination-connection (host, port) pair")

# We set the timeout here so that we don't hang in connection or during
        # negotiation.
        super(socksocket, self).settimeout(self._timeout)

if proxy_type is None:
            # Treat like regular socket object
            self.proxy_peername = dest_pair
            super(socksocket, self).settimeout(self._timeout)
            super(socksocket, self).connect((dest_addr, dest_port))
            return

proxy_addr = self._proxy_addr()

try:
            # Initial connection to proxy server.
            super(socksocket, self).connect(proxy_addr)

except socket.error as error:
            # Error while connecting to proxy
            self.close()
            if not catch_errors:
                proxy_addr, proxy_port = proxy_addr
                proxy_server = "{}:{}".format(proxy_addr, proxy_port)
                printable_type = PRINTABLE_PROXY_TYPES[proxy_type]

msg = "Error connecting to {} proxy {}".format(printable_type,
                                                                    proxy_server)
                log.debug("%s due to: %s", msg, error)
                raise ProxyConnectionError(msg, error)
            else:
                raise error

else:
            # Connected to proxy server, now negotiate
            try:
                # Calls negotiate_{SOCKS4, SOCKS5, HTTP}
                negotiate = self._proxy_negotiators[proxy_type]
                negotiate(self, dest_addr, dest_port)
            except socket.error as error:
                if not catch_errors:
                    # Wrap socket errors
                    self.close()
                    raise GeneralProxyError("Socket error", error)
                else:
                    raise error
            except ProxyError:
                # Protocol error while negotiating with proxy
                self.close()
                raise
                
    @set_self_blocking
    def connect_ex(self, dest_pair):
        """ https://docs.python.org/3/library/socket.html#socket.socket.connect_ex
        Like connect(address), but return an error indicator instead of raising an exception for errors returned by the C-level connect() call (other problems, such as "host not found" can still raise exceptions).
        """
        try:
            self.connect(dest_pair, catch_errors=True)
            return 0
        except OSError as e:
            # If the error is numeric (socket errors are numeric), then return number as 
            # connect_ex expects. Otherwise raise the error again (socket timeout for example)
            if e.errno:
                return e.errno
            else:
                raise

def _proxy_addr(self):
        """
        Return proxy address to connect to as tuple object
        """
        (proxy_type, proxy_addr, proxy_port, rdns, username,
         password) = self.proxy
        proxy_port = proxy_port or DEFAULT_PORTS.get(proxy_type)
        if not proxy_port:
            raise GeneralProxyError("Invalid proxy type")
        return proxy_addr, proxy_port

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2025-12-03 07:31:50
..	dir	-	root/root	0755	2025-04-04 08:04:17
Mako-1.3.9.dist-info	dir	-	root/root	0755	2025-04-04 08:05:13
MarkupSafe-3.0.2.dist-info	dir	-	root/root	0755	2025-04-04 08:05:06
MySQLdb	dir	-	root/root	0755	2025-04-04 08:05:06
PySocks-1.7.1.dist-info	dir	-	root/root	0755	2025-04-04 08:05:03
PyYAML-6.0.2.dist-info	dir	-	root/root	0755	2025-04-04 08:05:03
__pycache__	dir	-	root/root	0755	2025-04-04 08:10:03
_yaml	dir	-	root/root	0755	2025-04-04 08:05:03
aenum	dir	-	root/root	0755	2025-04-04 08:05:01
aenum-3.1.15.dist-info	dir	-	root/root	0755	2025-04-04 08:05:01
alembic	dir	-	root/root	0755	2025-04-04 08:05:15
alembic-1.15.1.dist-info	dir	-	root/root	0755	2025-04-04 08:05:16
annotated_types	dir	-	root/root	0755	2025-04-04 08:05:10
annotated_types-0.7.0.dist-info	dir	-	root/root	0755	2025-04-04 08:05:10
build	dir	-	root/root	0755	2025-12-03 07:31:50
build-1.3.0.dist-info	dir	-	root/root	0755	2025-12-03 07:31:50
certifi	dir	-	root/root	0755	2025-04-04 08:05:10
certifi-2025.1.31.dist-info	dir	-	root/root	0755	2025-04-04 08:05:10
cfgv-3.4.0.dist-info	dir	-	root/root	0755	2025-04-04 08:05:10
charset_normalizer	dir	-	root/root	0755	2025-04-04 08:05:09
charset_normalizer-3.4.1.dist-info	dir	-	root/root	0755	2025-04-04 08:05:09
curl	dir	-	root/root	0755	2025-04-04 08:04:29
dict2xml	dir	-	root/root	0755	2025-04-04 08:05:09
dict2xml-1.7.6.dist-info	dir	-	root/root	0755	2025-04-04 08:05:09
dicttoxml-1.7.16.dist-info	dir	-	root/root	0755	2025-04-04 08:05:09
distlib	dir	-	root/root	0755	2025-04-04 08:05:01
distlib-0.3.9.dist-info	dir	-	root/root	0755	2025-04-04 08:05:01
distro	dir	-	root/root	0755	2025-04-04 08:05:09
distro-1.9.0.dist-info	dir	-	root/root	0755	2025-04-04 08:05:09
dns	dir	-	root/root	0755	2025-04-04 08:05:08
dnspython-2.7.0.dist-info	dir	-	root/root	0755	2025-04-04 08:05:09
filelock	dir	-	root/root	0755	2025-04-04 08:05:08
filelock-3.18.0.dist-info	dir	-	root/root	0755	2025-04-04 08:05:08
greenlet	dir	-	root/root	0755	2025-12-03 07:31:50
greenlet-3.2.4.dist-info	dir	-	root/root	0755	2025-12-03 07:31:50
identify	dir	-	root/root	0755	2025-04-04 08:05:08
identify-2.6.9.dist-info	dir	-	root/root	0755	2025-04-04 08:05:08
idna	dir	-	root/root	0755	2025-04-04 08:05:07
idna-3.10.dist-info	dir	-	root/root	0755	2025-04-04 08:05:08
importlib_metadata	dir	-	root/root	0755	2025-05-23 06:32:08
importlib_metadata-8.7.0.dist-info	dir	-	root/root	0755	2025-05-23 06:32:08
importlib_resources	dir	-	root/root	0755	2025-04-04 08:05:07
importlib_resources-6.5.2.dist-info	dir	-	root/root	0755	2025-04-04 08:05:07
inotify	dir	-	root/root	0755	2025-12-03 07:31:50
inotify-0.2.12.dist-info	dir	-	root/root	0755	2025-12-03 07:31:50
lxml	dir	-	root/root	0755	2025-04-04 08:05:06
lxml-5.3.1.dist-info	dir	-	root/root	0755	2025-04-04 08:05:07
mako	dir	-	root/root	0755	2025-04-04 08:05:13
markupsafe	dir	-	root/root	0755	2025-04-04 08:05:06
mysql	dir	-	root/root	0755	2025-04-04 08:05:01
mysql-0.0.3.dist-info	dir	-	root/root	0755	2025-04-04 08:05:13
mysql_connector-2.2.9.dist-info	dir	-	root/root	0755	2025-04-04 08:05:01
mysqlclient-2.2.7.dist-info	dir	-	root/root	0755	2025-04-04 08:05:06
mysqlx	dir	-	root/root	0755	2025-04-04 08:05:01
nodeenv-1.9.1.dist-info	dir	-	root/root	0755	2025-04-04 08:05:06
nose	dir	-	root/root	0755	2025-04-04 08:05:00
nose-1.3.7.dist-info	dir	-	root/root	0755	2025-04-04 08:05:01
packaging	dir	-	root/root	0755	2025-05-23 06:32:08
packaging-25.0.dist-info	dir	-	root/root	0755	2025-05-23 06:32:08
pip	dir	-	root/root	0755	2025-12-03 07:31:37
pip-25.3.dist-info	dir	-	root/root	0755	2025-12-03 07:31:38
platformdirs	dir	-	root/root	0755	2025-04-04 08:05:05
platformdirs-4.3.7.dist-info	dir	-	root/root	0755	2025-04-04 08:05:05
pre_commit	dir	-	root/root	0755	2025-12-03 07:31:50
pre_commit-4.5.0.dist-info	dir	-	root/root	0755	2025-12-03 07:31:50
prometheus_client	dir	-	root/root	0755	2025-04-04 08:05:05
prometheus_client-0.21.1.dist-info	dir	-	root/root	0755	2025-04-04 08:05:05
psutil	dir	-	root/root	0755	2025-12-03 07:31:49
psutil-7.1.3.dist-info	dir	-	root/root	0755	2025-12-03 07:31:49
pycurl-7.45.6.dist-info	dir	-	root/root	0755	2025-04-04 08:04:30
pycurl.libs	dir	-	root/root	0755	2025-04-04 08:04:29
pydantic	dir	-	root/root	0755	2025-04-04 08:05:14
pydantic-2.8.2.dist-info	dir	-	root/root	0755	2025-04-04 08:05:15
pydantic_core	dir	-	root/root	0755	2025-04-04 08:05:13
pydantic_core-2.20.1.dist-info	dir	-	root/root	0755	2025-04-04 08:05:13
pyone	dir	-	root/root	0755	2025-04-04 08:05:13
pyone-6.10.3.dist-info	dir	-	root/root	0755	2025-04-04 08:05:14
pyproject_hooks	dir	-	root/root	0755	2025-12-03 07:31:49
pyproject_hooks-1.2.0.dist-info	dir	-	root/root	0755	2025-12-03 07:31:49
requests	dir	-	root/root	0755	2025-04-04 08:05:13
requests-2.32.3.dist-info	dir	-	root/root	0755	2025-04-04 08:05:13
sentry_sdk	dir	-	root/root	0755	2025-12-03 07:31:49
sentry_sdk-2.46.0.dist-info	dir	-	root/root	0755	2025-12-03 07:31:49
six-1.17.0.dist-info	dir	-	root/root	0755	2025-04-04 08:05:03
sqlalchemy	dir	-	root/root	0755	2025-04-04 08:05:10
sqlalchemy-2.0.39.dist-info	dir	-	root/root	0755	2025-04-04 08:05:13
tblib	dir	-	root/root	0755	2025-04-04 08:05:03
tblib-3.1.0.dist-info	dir	-	root/root	0755	2025-04-04 08:05:03
typing_extensions-4.13.1.dist-info	dir	-	root/root	0755	2025-04-04 08:05:03
urllib3	dir	-	root/root	0755	2025-04-04 08:05:02
urllib3-2.3.0.dist-info	dir	-	root/root	0755	2025-04-04 08:05:03
virtualenv	dir	-	root/root	0755	2025-04-04 08:05:10
virtualenv-20.30.0.dist-info	dir	-	root/root	0755	2025-04-04 08:05:10
wheel	dir	-	root/root	0755	2025-04-04 08:05:02
wheel-0.45.1.dist-info	dir	-	root/root	0755	2025-04-04 08:05:02
xmltodict-0.14.2.dist-info	dir	-	root/root	0755	2025-04-04 08:05:02
yaml	dir	-	root/root	0755	2025-04-04 08:05:03
zipp	dir	-	root/root	0755	2025-04-04 08:05:02
zipp-3.21.0.dist-info	dir	-	root/root	0755	2025-04-04 08:05:02
.sentry.conf		101 B	root/root	0600	2025-04-04 08:05:26
NCSentry.py	text/x-script.python	1.5 KB	root/root	0644	2025-03-26 11:05:09
cfgv.py	text/x-script.python	11.93 KB	root/root	0644	2025-04-04 08:05:09
dicttoxml.py	text/x-script.python	14.65 KB	root/root	0644	2025-04-04 08:05:09
nodeenv.py	text/x-script.python	45.58 KB	root/root	0644	2025-04-04 08:05:06
pycurl.cpython-312-x86_64-linux-gnu.so	application/x-pie-executable	717.59 KB	root/root	0755	2025-04-04 08:04:29
six.py	text/x-script.python	33.89 KB	root/root	0644	2025-04-04 08:05:03
socks.py	text/x-script.python	30.36 KB	root/root	0644	2025-04-04 08:05:03
sockshandler.py	text/x-script.python	3.87 KB	root/root	0644	2025-04-04 08:05:03
typing_extensions.py	text/x-script.python	168.11 KB	root/root	0644	2025-04-04 08:05:03
xmltodict.py	text/x-script.python	18.05 KB	root/root	0644	2025-04-04 08:05:02

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