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
|
package middleware
import (
"database/sql"
"log"
"net/http"
"os"
"time"
)
type AuthMiddleware struct {
Err *log.Logger
Db *sql.DB
}
func (auth *AuthMiddleware) CheckAndInvalidate(next http.HandlerFunc) http.HandlerFunc {
return http.HandlerFunc(
func (w http.ResponseWriter, r *http.Request) {
cookie, err := r.Cookie("paterissa_session_token")
if err != nil {
next.ServeHTTP(w, r)
return
}
stmt, err := auth.Db.Prepare("SELECT * FROM cookies WHERE content = $1;")
if err != nil {
cookie = &http.Cookie{
Name: "paterissa_session_token",
Value: "",
Path: "/",
Domain: os.Getenv("serv"),
MaxAge: -1,
HttpOnly: true,
}
http.SetCookie(w, cookie)
http.Redirect(w, r, "/", http.StatusFound)
return
}
defer stmt.Close()
var id int
var content string
var userId int
var expiration time.Time
row := stmt.QueryRow(cookie.Value)
err = row.Scan(&id, &content, &userId, &expiration)
if err != nil {
cookie = &http.Cookie{
Name: "paterissa_session_token",
Value: "",
Path: "/",
Domain: os.Getenv("serv"),
MaxAge: -1,
HttpOnly: true,
}
http.SetCookie(w, cookie)
http.Redirect(w, r, "/", http.StatusFound)
return
}
if time.Now().After(expiration) {
cookie = &http.Cookie{
Name: "paterissa_session_token",
Value: "",
Path: "/",
Domain: os.Getenv("serv"),
MaxAge: -1,
HttpOnly: true,
}
http.SetCookie(w, cookie)
http.Redirect(w, r, "/", http.StatusFound)
return
}
next.ServeHTTP(w, r)
return
})
}
func (auth *AuthMiddleware) Resolve(next http.HandlerFunc) http.HandlerFunc {
return http.HandlerFunc(
func (w http.ResponseWriter, r *http.Request) {
cookie, err := r.Cookie("paterissa_session_token")
if err != nil {
w.WriteHeader(http.StatusUnauthorized)
w.Write([]byte("Unauthorized"))
return
}
stmt, err := auth.Db.Prepare("SELECT * FROM cookies WHERE content = $1;")
if err != nil {
cookie = &http.Cookie{
Name: "paterissa_session_token",
Value: "",
Path: "/",
Domain: os.Getenv("serv"),
MaxAge: -1,
HttpOnly: true,
}
http.SetCookie(w, cookie)
w.Write([]byte("Unauthorized"))
auth.Err.Printf("Could not retrieve cookie from DB: %v\n", err)
http.Redirect(w, r, "/", http.StatusUnauthorized)
return
}
defer stmt.Close()
var id int
var content string
var userId int
var expiration time.Time
row := stmt.QueryRow(cookie.Value)
err = row.Scan(&id, &content, &userId, &expiration)
if err != nil {
cookie = &http.Cookie{
Name: "paterissa_session_token",
Value: "",
Path: "/",
Domain: os.Getenv("serv"),
MaxAge: -1,
HttpOnly: true,
}
http.SetCookie(w, cookie)
w.Write([]byte("Unauthorized"))
auth.Err.Printf("Could not retrieve cookie from DB: %v\n", err)
http.Redirect(w, r, "/", http.StatusUnauthorized)
return
}
if time.Now().After(expiration) {
cookie = &http.Cookie{
Name: "paterissa_session_token",
Value: "",
Path: "/",
Domain: os.Getenv("serv"),
MaxAge: -1,
HttpOnly: true,
}
http.SetCookie(w, cookie)
w.Write([]byte("Expired"))
http.Redirect(w, r, "/", http.StatusUnauthorized)
return
}
next.ServeHTTP(w, r)
return
})
}
|
