Python Message.add_string方法代码示例

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
    def send(self, s):
        """
        Send data to the channel.  Returns the number of bytes sent, or 0 if
        the channel stream is closed.  Applications are responsible for
        checking that all data has been sent: if only some of the data was
        transmitted, the application needs to attempt delivery of the remaining
        data.

        @param s: data to send
        @type s: str
        @return: number of bytes actually sent
        @rtype: int

        @raise socket.timeout: if no data could be sent before the timeout set
            by L{settimeout}.
        """
        size = len(s)
        self.lock.acquire()
        try:
            size = self._wait_for_send_window(size)
            if size == 0:
                # eof or similar
                return 0
            m = Message()
            m.add_byte(chr(MSG_CHANNEL_DATA))
            m.add_int(self.remote_chanid)
            m.add_string(s[:size])
        finally:
            self.lock.release()
        # Note: We release self.lock before calling _send_user_message.
        # Otherwise, we can deadlock during re-keying.
        self.transport._send_user_message(m)
        return size

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
    def invoke_subsystem(self, subsystem):
        """
        Request a subsystem on the server (for example, C{sftp}).  If the
        server allows it, the channel will then be directly connected to the
        requested subsystem.
        
        When the subsystem finishes, the channel will be closed and can't be
        reused.

        @param subsystem: name of the subsystem being requested.
        @type subsystem: str

        @raise SSHException: if the request was rejected or the channel was
            closed
        """
        if self.closed or self.eof_received or self.eof_sent or not self.active:
            raise SSHException('Channel is not open')
        m = Message()
        m.add_byte(chr(MSG_CHANNEL_REQUEST))
        m.add_int(self.remote_chanid)
        m.add_string('subsystem')
        m.add_boolean(True)
        m.add_string(subsystem)
        self._event_pending()
        self.transport._send_user_message(m)
        self._wait_for_event()

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
    def resize_pty(self, width=80, height=24):
        """
        Resize the pseudo-terminal.  This can be used to change the width and
        height of the terminal emulation created in a previous L{get_pty} call.

        @param width: new width (in characters) of the terminal screen
        @type width: int
        @param height: new height (in characters) of the terminal screen
        @type height: int

        @raise SSHException: if the request was rejected or the channel was
            closed
        """
        if self.closed or self.eof_received or self.eof_sent or not self.active:
            raise SSHException('Channel is not open')
        m = Message()
        m.add_byte(chr(MSG_CHANNEL_REQUEST))
        m.add_int(self.remote_chanid)
        m.add_string('window-change')
        m.add_boolean(True)
        m.add_int(width)
        m.add_int(height)
        m.add_int(0).add_int(0)
        self._event_pending()
        self.transport._send_user_message(m)
        self._wait_for_event()

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
 def invoke_shell(self):
     """
     Request an interactive shell session on this channel.  If the server
     allows it, the channel will then be directly connected to the stdin,
     stdout, and stderr of the shell.
     
     Normally you would call L{get_pty} before this, in which case the
     shell will operate through the pty, and the channel will be connected
     to the stdin and stdout of the pty.
     
     When the shell exits, the channel will be closed and can't be reused.
     You must open a new channel if you wish to open another shell.
     
     @raise SSHException: if the request was rejected or the channel was
         closed
     """
     if self.closed or self.eof_received or self.eof_sent or not self.active:
         raise SSHException('Channel is not open')
     m = Message()
     m.add_byte(chr(MSG_CHANNEL_REQUEST))
     m.add_int(self.remote_chanid)
     m.add_string('shell')
     m.add_boolean(1)
     self._event_pending()
     self.transport._send_user_message(m)
     self._wait_for_event()

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
    def exec_command(self, command):
        """
        Execute a command on the server.  If the server allows it, the channel
        will then be directly connected to the stdin, stdout, and stderr of
        the command being executed.
        
        When the command finishes executing, the channel will be closed and
        can't be reused.  You must open a new channel if you wish to execute
        another command.

        @param command: a shell command to execute.
        @type command: str

        @raise SSHException: if the request was rejected or the channel was
            closed
        """
        if self.closed or self.eof_received or self.eof_sent or not self.active:
            raise SSHException('Channel is not open')
        m = Message()
        m.add_byte(chr(MSG_CHANNEL_REQUEST))
        m.add_int(self.remote_chanid)
        m.add_string('exec')
        m.add_boolean(True)
        m.add_string(command)
        self._event_pending()
        self.transport._send_user_message(m)
        self._wait_for_event()

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
 def _parse_kexdh_gex_init(self, m):
     self.e = m.get_mpint()
     if (self.e < 1) or (self.e > self.p - 1):
         raise SSHException('Client kex "e" is out of range')
     self._generate_x()
     self.f = pow(self.g, self.x, self.p)
     K = pow(self.e, self.x, self.p)
     key = str(self.transport.get_server_key())
     # okay, build up the hash H of (V_C || V_S || I_C || I_S || K_S || min || n || max || p || g || e || f || K)
     hm = Message()
     hm.add(self.transport.remote_version, self.transport.local_version,
            self.transport.remote_kex_init, self.transport.local_kex_init,
            key)
     if not self.old_style:
         hm.add_int(self.min_bits)
     hm.add_int(self.preferred_bits)
     if not self.old_style:
         hm.add_int(self.max_bits)
     hm.add_mpint(self.p)
     hm.add_mpint(self.g)
     hm.add_mpint(self.e)
     hm.add_mpint(self.f)
     hm.add_mpint(K)
     H = SHA.new(str(hm)).digest()
     self.transport._set_K_H(K, H)
     # sign it
     sig = self.transport.get_server_key().sign_ssh_data(self.transport.rng, H)
     # send reply
     m = Message()
     m.add_byte(chr(_MSG_KEXDH_GEX_REPLY))
     m.add_string(key)
     m.add_mpint(self.f)
     m.add_string(str(sig))
     self.transport._send_message(m)
     self.transport._activate_outbound()

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
 def _disconnect_no_more_auth(self):
     m = Message()
     m.add_byte(chr(MSG_DISCONNECT))
     m.add_int(DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE)
     m.add_string('No more auth methods available')
     m.add_string('en')
     self.transport._send_message(m)
     self.transport.close()

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
 def _disconnect_service_not_available(self):
     m = Message()
     m.add_byte(chr(MSG_DISCONNECT))
     m.add_int(DISCONNECT_SERVICE_NOT_AVAILABLE)
     m.add_string('Service not available')
     m.add_string('en')
     self.transport._send_message(m)
     self.transport.close()

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
 def sign_ssh_data(self, rpool, data):
     digest = SHA.new(data).digest()
     rsa = RSA.construct((int(self.n), int(self.e), int(self.d)))
     sig = util.deflate_long(rsa.sign(self._pkcs1imify(digest), '')[0], 0)
     m = Message()
     m.add_string(b'ssh-rsa')
     m.add_string(sig)
     return m

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
 def __bytes__(self):
     m = Message()
     m.add_string(b'ssh-dss')
     m.add_mpint(self.p)
     m.add_mpint(self.q)
     m.add_mpint(self.g)
     m.add_mpint(self.y)
     return bytes(m)

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
 def __str__(self):
     m = Message()
     m.add_string('ssh-dss')
     m.add_mpint(self.p)
     m.add_mpint(self.q)
     m.add_mpint(self.g)
     m.add_mpint(self.y)
     return str(m)

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
    def _parse_userauth_request(self, m):
        if not self.transport.server_mode:
            # er, uh... what?
            m = Message()
            m.add_byte(chr(MSG_USERAUTH_FAILURE))
            m.add_string('none')
            m.add_boolean(0)
            self.transport._send_message(m)
            return
        if self.authenticated:
            # ignore
            return
        username = m.get_string()
        service = m.get_string()
        method = m.get_string()
        self.transport._log(DEBUG, 'Auth request (type=%s) service=%s, username=%s' % (method, service, username))
        if service != 'ssh-connection':
            self._disconnect_service_not_available()
            return
        if (self.auth_username is not None) and (self.auth_username != username):
            self.transport._log(WARNING, 'Auth rejected because the client attempted to change username in mid-flight')
            self._disconnect_no_more_auth()
            return
        self.auth_username = username

        if method == 'none':
            result = self.transport.server_object.check_auth_none(username)
        elif method == 'password':
            changereq = m.get_boolean()
            password = m.get_string()
            try:
                password = password.decode('UTF-8')
            except UnicodeError:
                # some clients/servers expect non-utf-8 passwords!
                # in this case, just return the raw byte string.
                pass
            if changereq:
                # always treated as failure, since we don't support changing passwords, but collect
                # the list of valid auth types from the callback anyway
                self.transport._log(DEBUG, 'Auth request to change passwords (rejected)')
                newpassword = m.get_string()
                try:
                    newpassword = newpassword.decode('UTF-8', 'replace')
                except UnicodeError:
                    pass
                result = AUTH_FAILED
            else:
                result = self.transport.server_object.check_auth_password(username, password)
        elif method == 'publickey':
            sig_attached = m.get_boolean()
            keytype = m.get_string()
            keyblob = m.get_string()
            try:
                key = self.transport._key_info[keytype](Message(keyblob))
            except SSHException, e:
                self.transport._log(INFO, 'Auth rejected: public key: %s' % str(e))
                key = None
            except:

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
 def sign_ssh_data(self, rng, data):
     msg = Message()
     msg.add_byte(chr(SSH2_AGENTC_SIGN_REQUEST))
     msg.add_string(self.blob)
     msg.add_string(data)
     msg.add_int(0)
     ptype, result = self.agent._send_message(msg)
     if ptype != SSH2_AGENT_SIGN_RESPONSE:
         raise SSHException('key cannot be used for signing')
     return result.get_string()

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
 def _parse_service_request(self, m):
     service = m.get_string()
     if self.transport.server_mode and (service == 'ssh-userauth'):
         # accepted
         m = Message()
         m.add_byte(chr(MSG_SERVICE_ACCEPT))
         m.add_string(service)
         self.transport._send_message(m)
         return
     # dunno this one
     self._disconnect_service_not_available()

# 需要导入模块: from ssh.message import Message [as 别名]
# 或者: from ssh.message.Message import add_string [as 别名]
 def _parse_userauth_info_request(self, m):
     if self.auth_method != 'keyboard-interactive':
         raise SSHException('Illegal info request from server')
     title = m.get_string()
     instructions = m.get_string()
     m.get_string()  # lang
     prompts = m.get_int()
     prompt_list = []
     for i in range(prompts):
         prompt_list.append((m.get_string(), m.get_boolean()))
     response_list = self.interactive_handler(title, instructions, prompt_list)
     
     m = Message()
     m.add_byte(chr(MSG_USERAUTH_INFO_RESPONSE))
     m.add_int(len(response_list))
     for r in response_list:
         m.add_string(r)
     self.transport._send_message(m)