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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
require "crypto/bcrypt"
class Guff::UserModel < Guff::Model
SQL = TemplateCache.new({
add_user: "
INSERT INTO users(user_name) VALUES (:user_name)
",
update_user: "
UPDATE users
SET %{sets}
WHERE user_id = :user_id
",
delete_login: "
DELETE FROM user_logins WHERE user_id = :user_id
",
add_login: "
INSERT INTO user_logins(user_id, email, pass_hash) VALUES
(:user_id, :email, :pass_hash)
",
login: "
SELECT a.user_id,
a.pass_hash
FROM user_logins a
JOIN users b
ON (b.user_id = a.user_id AND
b.is_active)
WHERE a.email = :email
",
})
def initialize(models : Models)
super(models, SQL)
end
def get_users
r = [] of Hash(String, String)
all(:get_users) do |row|
r << row
end
r
end
def add_user(
name : String,
active : Bool? = nil,
role : String? = nil,
email : String? = nil,
password : String? = nil,
)
user_id = -1_i64
transaction do
# add user
query(:add_user, {
"user_name": name
}, nil)
# get user_id
user_id = last_insert_row_id as Int64
# set active and/or role
if active || role
update_user(user_id,
active: active,
role: role,
)
end
# add login
if email || password
add_login(user_id,
email.not_nil!,
password.not_nil!
)
end
end
# return id
user_id
end
def update_user(
user_id : Int64,
name : String? = nil,
active : Bool? = nil,
role : String? = nil,
)
sets = [] of String
args = { "user_id": user_id.to_s }
if name != nil
args["name"] = name.not_nil!
sets << "user_name = :name"
end
if active != nil
args["is_active"] = active.not_nil! ? "1" : "0"
sets << "is_active = :is_active"
end
if role != nil
args["role"] = role.not_nil!
sets << "
role_id = (SELECT role_id
FROM roles
WHERE role_name = :role)
"
end
# exec query
query(:update_user, args, {
"sets": sets.join(", "),
}) if sets.size > 0
end
def delete_login(user_id : Int64)
query(:delete_login, {
"user_id": user_id.to_s
}, nil)
end
def add_login(
user_id : Int64,
email : String,
password : String,
)
# TODO: check password strength
raise "password too short" if password.size < 4
# hash password
pass_hash = Crypto::Bcrypt::Password.create(password, cost: 10).to_s
transaction do
# clear old credentials
delete_login(user_id)
# add new credentials
query(:add_login, {
"user_id": user_id.to_s,
"email": email,
"pass_hash": pass_hash,
}, nil)
end
end
def login(
email : String,
password : String
)
# map email to user id and pass hash
row = row(:login, {
"email": email,
}, nil)
raise "invalid login" unless row
# shut compiler up
row = row.not_nil!
# get pass hash from db
pass_hash = Crypto::Bcrypt::Password.new(row["pass_hash"].to_s)
# compare hash against password
raise "invalid login" unless pass_hash == password
# return user id
row["user_id"] as Int64
end
end
|
