mirror of https://github.com/gofiber/fiber.git
92 lines
2.0 KiB
Go
92 lines
2.0 KiB
Go
package csrf
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import (
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"fmt"
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"sync"
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"time"
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"github.com/gofiber/fiber/v3"
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"github.com/gofiber/fiber/v3/internal/memory"
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"github.com/gofiber/fiber/v3/log"
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"github.com/gofiber/utils/v2"
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)
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// go:generate msgp
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// msgp -file="storage_manager.go" -o="storage_manager_msgp.go" -tests=false -unexported
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type item struct{}
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//msgp:ignore manager
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type storageManager struct {
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pool sync.Pool
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memory *memory.Storage
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storage fiber.Storage
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}
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func newStorageManager(storage fiber.Storage) *storageManager {
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// Create new storage handler
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storageManager := &storageManager{
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pool: sync.Pool{
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New: func() any {
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return new(item)
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},
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},
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}
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if storage != nil {
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// Use provided storage if provided
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storageManager.storage = storage
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} else {
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// Fallback too memory storage
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storageManager.memory = memory.New()
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}
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return storageManager
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}
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// get raw data from storage or memory
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func (m *storageManager) getRaw(key string) ([]byte, error) {
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var (
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raw []byte
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err error
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)
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if m.storage != nil {
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raw, err = m.storage.Get(key)
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if err != nil {
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return nil, fmt.Errorf("%w: %s", ErrStorageRetrievalFailed, err.Error())
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}
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} else {
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var ok bool
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raw, ok = m.memory.Get(key).([]byte)
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if !ok {
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return nil, ErrStorageRetrievalFailed
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}
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}
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return raw, nil
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}
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// set data to storage or memory
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func (m *storageManager) setRaw(key string, raw []byte, exp time.Duration) {
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if m.storage != nil {
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err := m.storage.Set(key, raw, exp)
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if err != nil {
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log.Warnf("csrf: failed to save session in storage: %s", err.Error())
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return
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}
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} else {
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// 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
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m.memory.Set(utils.CopyString(key), raw, exp)
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}
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}
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// delete data from storage or memory
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func (m *storageManager) delRaw(key string) {
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if m.storage != nil {
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err := m.storage.Delete(key)
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if err != nil {
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log.Warnf("csrf: failed to delete session in storage: %s", err.Error())
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return
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}
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} else {
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m.memory.Delete(key)
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}
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}
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