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// Package memory provides an in memory implementation of the storage interface.
package memory
import (
"errors"
"sync"
"github.com/coreos/poke/storage"
)
// New returns an in memory storage.
func New() storage.Storage {
return &memStorage{
clients: make(map[string]storage.Client),
authCodes: make(map[string]storage.AuthCode),
authReqs: make(map[string]storage.AuthRequest),
}
}
// Config is an implementation of a storage configuration.
//
// TODO(ericchiang): Actually define a storage config interface and have registration.
type Config struct {
// The in memory implementation has no config.
}
// Open always returns a new in memory storage.
func (c *Config) Open() (storage.Storage, error) {
return New(), nil
}
type memStorage struct {
mu sync.Mutex
clients map[string]storage.Client
authCodes map[string]storage.AuthCode
authReqs map[string]storage.AuthRequest
keys storage.Keys
}
func (s *memStorage) tx(f func()) {
s.mu.Lock()
defer s.mu.Unlock()
f()
}
var errAlreadyExists = errors.New("already exists")
func (s *memStorage) Close() error { return nil }
func (s *memStorage) CreateClient(c storage.Client) error {
s.tx(func() { s.clients[c.ID] = c })
return nil
}
func (s *memStorage) CreateAuthCode(c storage.AuthCode) error {
s.tx(func() { s.authCodes[c.ID] = c })
return nil
}
func (s *memStorage) CreateRefresh(r storage.RefreshToken) error {
s.tx(func() { s.refreshTokens[r.RefreshToken] = r })
return nil
}
func (s *memStorage) CreateAuthRequest(a storage.AuthRequest) error {
s.tx(func() { s.authReqs[a.ID] = a })
return nil
}
func (s *memStorage) GetClient(id string) (client storage.Client, err error) {
s.tx(func() {
var ok bool
if client, ok = s.clients[id]; !ok {
err = storage.ErrNotFound
}
})
return
}
func (s *memStorage) GetKeys() (keys storage.Keys, err error) {
s.tx(func() { keys = s.keys })
return
}
func (s *memStorage) GetRefresh(token string) (tok storage.RefreshToken, err error) {
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s.tx(func() {
var ok bool
if tok, ok = s.refreshTokens[token]; !ok {
err = storage.ErrNotFound
return
}
})
return
}
func (s *memStorage) GetAuthRequest(id string) (req storage.AuthRequest, err error) {
s.tx(func() {
var ok bool
if req, ok = s.authReqs[id]; !ok {
err = storage.ErrNotFound
return
}
})
return
}
func (s *memStorage) ListClients() (clients []storage.Client, err error) {
s.tx(func() {
for _, client := range s.clients {
clients = append(clients, client)
}
})
return
}
func (s *memStorage) ListRefreshTokens() (tokens []storage.RefreshToken, err error) {
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s.tx(func() {
for _, refresh := range s.refreshTokens {
tokens = append(tokens, refresh)
}
})
return
}
func (s *memStorage) DeleteClient(id string) (err error) {
s.tx(func() {
if _, ok := s.clients[id]; !ok {
err = storage.ErrNotFound
return
}
delete(s.clients, id)
})
return
}
func (s *memStorage) DeleteRefresh(token string) (err error) {
s.tx(func() {
if _, ok := s.refreshTokens[token]; !ok {
err = storage.ErrNotFound
return
}
delete(s.refreshTokens, token)
})
return
}
func (s *memStorage) DeleteAuthCode(id string) (err error) {
s.tx(func() {
if _, ok := s.authCodes[id]; !ok {
err = storage.ErrNotFound
return
}
delete(s.authCodes, id)
})
return
}
func (s *memStorage) DeleteAuthRequest(id string) (err error) {
s.tx(func() {
if _, ok := s.authReqs[id]; !ok {
err = storage.ErrNotFound
return
}
delete(s.authReqs, id)
})
return
}
func (s *memStorage) GetAuthCode(id string) (c storage.AuthCode, err error) {
s.tx(func() {
var ok bool
if c, ok = s.authCodes[id]; !ok {
err = storage.ErrNotFound
return
}
})
return
}
func (s *memStorage) ClaimCode(id string) (err error) {
s.tx(func() {
if _, ok := s.authCodes[id]; !ok {
err = storage.ErrNotFound
return
}
delete(s.authCodes, id)
})
return
}
func (s *memStorage) ClaimRefresh(refreshToken string) (token storage.RefreshToken, err error) {
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s.tx(func() {
var ok bool
if token, ok = s.refreshTokens[refreshToken]; !ok {
err = storage.ErrNotFound
return
}
delete(s.refreshTokens, refreshToken)
})
return
}
func (s *memStorage) UpdateClient(id string, updater func(old storage.Client) (storage.Client, error)) (err error) {
s.tx(func() {
client, ok := s.clients[id]
if !ok {
err = storage.ErrNotFound
return
}
if client, err = updater(client); err == nil {
s.clients[id] = client
}
})
return
}
func (s *memStorage) UpdateKeys(updater func(old storage.Keys) (storage.Keys, error)) (err error) {
s.tx(func() {
var keys storage.Keys
if keys, err = updater(s.keys); err == nil {
s.keys = keys
}
})
return
}
func (s *memStorage) UpdateAuthRequest(id string, updater func(old storage.AuthRequest) (storage.AuthRequest, error)) (err error) {
s.tx(func() {
req, ok := s.authReqs[id]
if !ok {
err = storage.ErrNotFound
return
}
if req, err := updater(req); err == nil {
s.authReqs[id] = req
}
})
return
}