<s> from coro . ssh . util import debug <EOL> from coro . ssh . util import packet as ssh_packet <EOL> from coro . ssh . transport import transport as ssh_transport <EOL> from coro . ssh . keys import key_storage <EOL> from coro . ssh . transport . constants import * <EOL> from coro . ssh . auth import userauth <EOL> from coro import write_stderr as W <EOL> class SSH_Server_Transport ( ssh_transport . SSH_Transport ) : <EOL> def __init__ ( self , server_key , client_transport = None , server_transport = None , debug = None ) : <EOL> ssh_transport . SSH_Transport . __init__ ( self , client_transport , server_transport , debug ) <EOL> self . self2remote = self . s2c <EOL> self . remote2self = self . c2s <EOL> self . is_server = True <EOL> self . s2c . supported_server_keys = [ server_key ] <EOL> def connect ( self , transport , authenticator ) : <EOL> """<STR_LIT>""" <EOL> try : <EOL> self . _connect ( transport , authenticator ) <EOL> except : <EOL> self . disconnect ( ) <EOL> raise <EOL> def _connect ( self , transport , authenticator ) : <EOL> self . transport = transport <EOL> if self . s2c . comments : <EOL> comments = '<STR_LIT:U+0020>' + self . s2c . comments <EOL> else : <EOL> comments = '<STR_LIT>' <EOL> self . s2c . version_string = '<STR_LIT>' + self . s2c . protocol_version + '<STR_LIT:->' + self . s2c . software_version + comments <EOL> transport . write ( self . s2c . version_string + '<STR_LIT:\r\n>' ) <EOL> while <NUM_LIT:1> : <EOL> line = transport . read_line ( ) <EOL> if line . startswith ( '<STR_LIT>' ) : <EOL> self . c2s . version_string = line <EOL> i = line . find ( '<STR_LIT:U+0020>' ) <EOL> if i != - <NUM_LIT:1> : <EOL> self . c2s . comments = line [ i + <NUM_LIT:1> : ] <EOL> line = line [ : i ] <EOL> parts = line . split ( '<STR_LIT:->' ) <EOL> if len ( parts ) != <NUM_LIT:3> : <EOL> self . send_disconnect ( <EOL> ssh_transport . SSH_DISCONNECT_PROTOCOL_ERROR , <EOL> '<STR_LIT>' % line <EOL> ) <EOL> self . c2s . protocol_version = parts [ <NUM_LIT:1> ] <EOL> self . c2s . software_version = parts [ <NUM_LIT:2> ] <EOL> if self . c2s . protocol_version not in ( '<STR_LIT>' , '<STR_LIT>' ) : <EOL> self . send_disconnect ( <EOL> ssh_transport . SSH_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED , <EOL> '<STR_LIT>' % self . c2s . protocol_version <EOL> ) <EOL> break <EOL> self . send_kexinit ( ) <EOL> self . s2c . set_preferred ( '<STR_LIT>' ) <EOL> self . s2c . set_preferred ( '<STR_LIT>' ) <EOL> if self . self2remote . proactive_kex : <EOL> self . s2c . set_preferred ( '<STR_LIT>' ) <EOL> self . s2c . set_preferred ( '<STR_LIT>' ) <EOL> self . set_key_exchange ( ) <EOL> self . debug . write ( debug . DEBUG_3 , '<STR_LIT>' ) <EOL> packet = self . c2s . key_exchange . get_initial_server_kex_packet ( ) <EOL> self . send_packet ( packet ) <EOL> self . start_receive_thread ( ) <EOL> self . _process_kexinit ( ) <EOL> self . debug . write ( debug . DEBUG_3 , '<STR_LIT>' ) <EOL> self . debug . write ( debug . DEBUG_3 , '<STR_LIT>' % ( self . server_key , ) ) <EOL> if not self . self2remote . proactive_kex : <EOL> self . debug . write ( debug . DEBUG_3 , '<STR_LIT>' ) <EOL> packet = self . key_exchange . get_initial_server_kex_packet ( ) <EOL> if packet : <EOL> self . send_packet ( packet ) <EOL> message_type , packet = self . receive_message ( ( SSH_MSG_SERVICE_REQUEST , ) ) <EOL> msg , service_name = ssh_packet . unpack_payload ( ssh_packet . PAYLOAD_MSG_SERVICE_REQUEST , packet ) <EOL> self . debug . write ( debug . DEBUG_1 , '<STR_LIT>' % ( service_name , ) ) <EOL> if service_name != '<STR_LIT>' : <EOL> self . send_disconnect ( SSH_DISCONNECT_SERVICE_NOT_AVAILABLE , "<STR_LIT>" ) <EOL> else : <EOL> self . send_packet ( <EOL> ssh_packet . pack_payload ( <EOL> ssh_packet . PAYLOAD_MSG_SERVICE_ACCEPT , ( <EOL> ssh_transport . SSH_MSG_SERVICE_ACCEPT , <EOL> '<STR_LIT>' , <EOL> ) <EOL> ) <EOL> ) <EOL> authenticator . authenticate ( service_name ) </s>
