-
-
Notifications
You must be signed in to change notification settings - Fork 1.6k
/
manager.go
114 lines (102 loc) · 2.6 KB
/
manager.go
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
package csrf
import (
"sync"
"time"
"github.com/gofiber/fiber/v2"
"github.com/gofiber/fiber/v2/internal/memory"
"github.com/gofiber/fiber/v2/utils"
)
// go:generate msgp
// msgp -file="manager.go" -o="manager_msgp.go" -tests=false -unexported
// don't forget to replace the msgp import path to:
// "github.com/gofiber/fiber/v2/internal/msgp"
type item struct{}
//msgp:ignore manager
type manager struct {
pool sync.Pool
memory *memory.Storage
storage fiber.Storage
}
func newManager(storage fiber.Storage) *manager {
// Create new storage handler
manager := &manager{
pool: sync.Pool{
New: func() interface{} {
return new(item)
},
},
}
if storage != nil {
// Use provided storage if provided
manager.storage = storage
} else {
// Fallback too memory storage
manager.memory = memory.New()
}
return manager
}
// acquire returns an *entry from the sync.Pool
func (m *manager) acquire() *item {
return m.pool.Get().(*item)
}
// release and reset *entry to sync.Pool
func (m *manager) release(e *item) {
// don't release item if we using memory storage
if m.storage != nil {
return
}
m.pool.Put(e)
}
// get data from storage or memory
func (m *manager) get(key string) (it *item) {
if m.storage != nil {
it = m.acquire()
if raw, _ := m.storage.Get(key); raw != nil {
if _, err := it.UnmarshalMsg(raw); err != nil {
return
}
}
return
}
if it, _ = m.memory.Get(key).(*item); it == nil {
it = m.acquire()
}
return
}
// get raw data from storage or memory
func (m *manager) getRaw(key string) (raw []byte) {
if m.storage != nil {
raw, _ = m.storage.Get(key)
} else {
raw, _ = m.memory.Get(key).([]byte)
}
return
}
// set data to storage or memory
func (m *manager) set(key string, it *item, exp time.Duration) {
if m.storage != nil {
if raw, err := it.MarshalMsg(nil); err == nil {
_ = m.storage.Set(key, raw, exp)
}
} else {
// the key is crucial in crsf and sometimes a reference to another value which can be reused later(pool/unsafe values concept), so a copy is made here
m.memory.Set(utils.CopyString(key), it, exp)
}
}
// set data to storage or memory
func (m *manager) setRaw(key string, raw []byte, exp time.Duration) {
if m.storage != nil {
_ = m.storage.Set(key, raw, exp)
} else {
// the key is crucial in crsf and sometimes a reference to another value which can be reused later(pool/unsafe values concept), so a copy is made here
m.memory.Set(utils.CopyString(key), raw, exp)
}
}
// delete data from storage or memory
func (m *manager) delete(key string) {
if m.storage != nil {
_ = m.storage.Delete(key)
} else {
m.memory.Delete(key)
}
}