1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
import datetime
import os
import sys
from contextlib import contextmanager
from sqlalchemy import (Boolean, Column, Date, Integer, String, Text,
create_engine, text)
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
Base = declarative_base()
metadata = Base.metadata
class Log(Base):
__tablename__ = "log"
id = Column(Integer, primary_key=True)
timestamp = Column(Date, nullable=False, default=datetime.datetime.utcnow)
username = Column(Text, nullable=False)
logtext = Column(Text, nullable=False)
def as_dict(self):
"""Return JSON serializable dict."""
d = {}
for col in self.__table__.columns:
value = getattr(self, col.name)
if issubclass(value.__class__, Base):
continue
elif issubclass(value.__class__, datetime.datetime):
value = str(value)
d[col.name] = value
return d
@classmethod
def add(cls, username, logtext):
with sqla_session() as session:
logentry = Log()
logentry.username = username
logentry.logtext = logtext
session.add(logentry)
class Scanner(Base):
__tablename__ = "scanner"
id = Column(Integer, primary_key=True)
runner = Column(Text, nullable=False, default="*")
name = Column(String(128), nullable=False, unique=True)
active = Column(Boolean, nullable=False)
interval = Column(Integer, nullable=False, server_default=text("300"))
starttime = Column(Date)
hostname = Column(String(128), nullable=False, unique=True)
port = Column(Integer, nullable=False)
maxruns = Column(Integer, nullable=False, default=1)
def as_dict(self):
d = {}
for col in self.__table__.columns:
value = getattr(self, col.name)
if issubclass(value.__class__, Base):
continue
elif issubclass(value.__class__, datetime.datetime):
value = str(value)
d[col.name] = value
return d
@classmethod
def add(cls, name, hostname, port, active=False, interval=0,
starttime=None,
endtime=None,
maxruns=1):
errors = list()
if starttime and endtime:
if starttime > endtime:
errors.append("Endtime must be after the starttime.")
if interval < 0:
errors.append("Interval must be > 0")
if maxruns < 0:
errors.append("Max runs must be > 0")
with sqla_session() as session:
scanentry = Scanner()
scanentry.name = name
scanentry.active = active
scanentry.interval = interval
if starttime:
scanentry.starttime = starttime
if endtime:
scanentry.endtime = endtime
scanentry.maxruns = maxruns
scanentry.hostname = hostname
scanentry.port = port
session.add(scanentry)
return errors
@classmethod
def get(cls, name):
results = list()
with sqla_session() as session:
scanners = session.query(Scanner).all()
if not scanners:
return None
for scanner in scanners:
if scanner.runner == "*":
results.append(scanner.as_dict())
elif scanner.runner == name:
results.append(scanner.as_dict())
return results
def get_sqlalchemy_conn_str(**kwargs) -> str:
try:
if "SQL_HOSTNAME" in os.environ:
hostname = os.environ["SQL_HOSTNAME"]
else:
hostname = "localhost"
print("SQL_HOSTNAME not set, falling back to localhost.")
if "SQL_PORT" in os.environ:
port = os.environ["SQL_PORT"]
else:
print("SQL_PORT not set, falling back to 5432.")
port = 5432
username = os.environ["SQL_USERNAME"]
password = os.environ["SQL_PASSWORD"]
database = os.environ["SQL_DATABASE"]
except KeyError:
print("SQL_DATABASE, SQL_USERNAME, SQL_PASSWORD must be set.")
sys.exit(-2)
return (
f"postgresql://{username}:{password}@{hostname}:{port}/{database}"
)
def get_session(conn_str=""):
if conn_str == "":
conn_str = get_sqlalchemy_conn_str()
engine = create_engine(conn_str, pool_size=50, max_overflow=0)
Session = sessionmaker(bind=engine)
return Session()
@contextmanager
def sqla_session(conn_str="", **kwargs):
session = get_session(conn_str)
try:
yield session
session.commit()
except Exception:
session.rollback()
raise
finally:
session.close()
|
