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added error handling

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lgandx
2025-12-05 14:49:43 -03:00
parent aa4b082071
commit 6d66d900f1
1 changed files with 33 additions and 30 deletions
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63
servers/SNMP.py
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@@ -25,38 +25,41 @@ else:
class SNMP(BaseRequestHandler): class SNMP(BaseRequestHandler):
def handle(self): def handle(self):
data = self.request[0] try:
received_record, rest_of_substrate = decode(data) data = self.request[0]
received_record, rest_of_substrate = decode(data)
snmp_version = int(received_record['field-0']) snmp_version = int(received_record['field-0'])
if snmp_version == 3: if snmp_version == 3:
full_snmp_msg = hexlify(data).decode('utf-8') full_snmp_msg = hexlify(data).decode('utf-8')
received_record_inner, _ = decode(received_record['field-2']) received_record_inner, _ = decode(received_record['field-2'])
snmp_user = str(received_record_inner['field-3']) snmp_user = str(received_record_inner['field-3'])
engine_id = hexlify(received_record_inner['field-0']._value).decode('utf-8') engine_id = hexlify(received_record_inner['field-0']._value).decode('utf-8')
auth_params = hexlify(received_record_inner['field-4']._value).decode('utf-8') auth_params = hexlify(received_record_inner['field-4']._value).decode('utf-8')
SaveToDb({ SaveToDb({
"module": "SNMP",
"type": "SNMPv3",
"client" : self.client_address[0],
"user": snmp_user,
"hash": auth_params,
"fullhash": "{}:{}:{}:{}".format(snmp_user, full_snmp_msg, engine_id, auth_params)
})
else:
community_string = str(received_record['field-1'])
snmp_version = '1' if snmp_version == 0 else '2c'
SaveToDb(
{
"module": "SNMP", "module": "SNMP",
"type": "Cleartext SNMPv{}".format(snmp_version), "type": "SNMPv3",
"client": self.client_address[0], "client" : self.client_address[0],
"user": community_string, "user": snmp_user,
"cleartext": community_string, "hash": auth_params,
"fullhash": community_string, "fullhash": "{}:{}:{}:{}".format(snmp_user, full_snmp_msg, engine_id, auth_params)
} })
) else:
community_string = str(received_record['field-1'])
snmp_version = '1' if snmp_version == 0 else '2c'
SaveToDb(
{
"module": "SNMP",
"type": "Cleartext SNMPv{}".format(snmp_version),
"client": self.client_address[0],
"user": community_string,
"cleartext": community_string,
"fullhash": community_string,
}
)
except:
pass