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
|
from sqlalchemy import Table, Column
from sqlalchemy import Integer, String, Float, ForeignKey, Boolean
from sqlalchemy.dialects.mysql import BLOB, TINYINT
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import relationship, backref
Base = declarative_base()
_SALT_LEN = 16
_TOKEN_LEN = 16
MAX_USERNAME_SIZE = 20
MAX_PASSWORD_SIZE = 20
_table_typical_settings = {
'mysql_engine' : 'InnoDB',
'mysql_charset' : 'utf8',
'mysql_auto_increment' : '1'}
class _TableName: # avoid typoes
UserModel = 'users'
LocationInfo = 'location_info'
UserAuth = 'user_auth'
CompanyInfo = 'comp_info'
SectionInfo = 'sec_info'
CompanySub = 'comp_sub'
SectionSub = 'sec_sub'
#comp_sub_assoc = Table(_TableName.CompanySub, Base.metadata,
# Column('uid', Integer, ForeignKey(_TableName.UserModel + '.id')),
# Column('comp_id', Integer, ForeignKey(_TableName.CompanyInfo + '.id')))
#
#sec_sub_assoc = Table(_TableName.SectionSub, Base.metadata,
# Column('uid', Integer, ForeignKey(_TableName.UserModel + '.id')),
# Column('sec_id', Integer, ForeignKey(_TableName.SectionInfo + '.id')))
class UserModel(Base):
__tablename__ = _TableName.UserModel
__table_args__ = _table_typical_settings
id = Column(Integer, primary_key = True)
username = Column(String(MAX_USERNAME_SIZE),
unique = True, nullable = False)
sex = Column(Boolean, nullable = False)
sec_no = Column(TINYINT)
# comp_id = Column(TINYINT, ForeignKey(_TableName.CompanyInfo + '.id'))
comp_id = Column(TINYINT)
# sec_id = Column(TINYINT, ForeignKey(_TableName.SectionInfo + '.id'))
sec_id = Column(Integer)
# comp_sub = relationship(_TableName.CompanyInfo,
# secondary = comp_sub_assoc,
# backref = "subscribers")
# sec_sub = relationship(_TableName.SectionInfo,
# secondary = sec_sub_assoc,
# backref = "subscribers")
location = None
auth = None
sec = None
class LocationInfo(Base):
__tablename__ = _TableName.LocationInfo
__table_args__ = _table_typical_settings
uid = Column(Integer, ForeignKey(_TableName.UserModel + '.id'),
primary_key = True)
lat = Column(Float(precesion = 64), nullable = False)
lng = Column(Float(precesion = 64), nullable = False)
user = relationship("UserModel", uselist = False,
backref = backref("location", uselist = False,
cascade = "all, delete-orphan"))
# More: last_update
from hashlib import sha256
from os import urandom
def _sprinkle_salt(uauth, passwd):
data = sha256(uauth.salt)
data.update(chr(0))
data.update(passwd)
return data.digest()
def _random_binary_string(length):
return urandom(length)
class UserAuth(Base):
__tablename__ = _TableName.UserAuth
__table_args__ = _table_typical_settings
uid = Column(Integer, ForeignKey(_TableName.UserModel + '.id'), primary_key = True)
password = Column(BLOB)
salt = Column(BLOB)
token = Column(BLOB)
user = relationship("UserModel", uselist = False,
backref = backref("auth", uselist = False,
cascade = "all, delete-orphan"))
def regen_token(self):
self.token = sha256(_random_binary_string(_TOKEN_LEN)).digest()
def __init__(self, passwd):
self.set_password(passwd)
def set_password(self, passwd):
self.salt = _random_binary_string(_SALT_LEN)
self.password = _sprinkle_salt(self, passwd)
self.regen_token()
def check_password(self, passwd):
passwd = _sprinkle_salt(self, passwd)
return passwd == self.password
def check_token(self, tk):
return self.token == tk
def get_token(self):
return self.token
#
#class CompanyInfo(Base):
# __tablename__ = _TableName.CompanyInfo
# __table_args__ = _table_typical_settings
#
# id = Column(TINYINT, primary_key = True)
# marker_lat = Column(Float(precesion = 64), nullable = False)
# marker_lng = Column(Float(precesion = 64), nullable = False)
#
# subscribers = None
#
#class SectionInfo(Base):
# __tablename__ = _TableName.SectionInfo
# __table_args__ = _table_typical_settings
#
# id = Column(TINYINT, primary_key = True)
# marker_lat = Column(Float(precesion = 64), nullable = False)
# market_lng = Column(Float(precesion = 64), nullable = False)
#
# subscribers = None
|