in Code/AuroraSLDataAPIDemo/aslbootstrap/pymysql/connections.py [0:0]
def _get_server_information(self):
i = 0
packet = self._read_packet()
data = packet.get_all_data()
self.protocol_version = byte2int(data[i:i+1])
i += 1
server_end = data.find(b'\0', i)
self.server_version = data[i:server_end].decode('latin1')
i = server_end + 1
self.server_thread_id = struct.unpack('<I', data[i:i+4])
i += 4
self.salt = data[i:i+8]
i += 9 # 8 + 1(filler)
self.server_capabilities = struct.unpack('<H', data[i:i+2])[0]
i += 2
if len(data) >= i + 6:
lang, stat, cap_h, salt_len = struct.unpack('<BHHB', data[i:i+6])
i += 6
# TODO: deprecate server_language and server_charset.
# mysqlclient-python doesn't provide it.
self.server_language = lang
try:
self.server_charset = charset_by_id(lang).name
except KeyError:
# unknown collation
self.server_charset = None
self.server_status = stat
if DEBUG: print("server_status: %x" % stat)
self.server_capabilities |= cap_h << 16
if DEBUG: print("salt_len:", salt_len)
salt_len = max(12, salt_len - 9)
# reserved
i += 10
if len(data) >= i + salt_len:
# salt_len includes auth_plugin_data_part_1 and filler
self.salt += data[i:i+salt_len]
i += salt_len
i+=1
# AUTH PLUGIN NAME may appear here.
if self.server_capabilities & CLIENT.PLUGIN_AUTH and len(data) >= i:
# Due to Bug#59453 the auth-plugin-name is missing the terminating
# NUL-char in versions prior to 5.5.10 and 5.6.2.
# ref: https://dev.mysql.com/doc/internals/en/connection-phase-packets.html#packet-Protocol::Handshake
# didn't use version checks as mariadb is corrected and reports
# earlier than those two.
server_end = data.find(b'\0', i)
if server_end < 0: # pragma: no cover - very specific upstream bug
# not found \0 and last field so take it all
self._auth_plugin_name = data[i:].decode('utf-8')
else:
self._auth_plugin_name = data[i:server_end].decode('utf-8')