Passport/pkg/internal/services/auth.go
2024-06-22 13:04:21 +08:00

126 lines
2.9 KiB
Go

package services
import (
"fmt"
"sync"
"time"
jsoniter "github.com/json-iterator/go"
"git.solsynth.dev/hydrogen/passport/pkg/internal/models"
"github.com/gofiber/fiber/v2"
"github.com/rs/zerolog/log"
)
var (
authContextMutex sync.Mutex
authContextCache = make(map[string]models.AuthContext)
)
func Authenticate(atk, rtk string, rty int) (ctx models.AuthContext, perms map[string]any, newAtk, newRtk string, err error) {
var claims PayloadClaims
claims, err = DecodeJwt(atk)
if err != nil {
if len(rtk) > 0 && rty < 1 {
// Auto refresh and retry
newAtk, newRtk, err = RefreshToken(rtk)
if err == nil {
return Authenticate(newAtk, newRtk, rty+1)
}
}
err = fiber.NewError(fiber.StatusUnauthorized, fmt.Sprintf("invalid auth key: %v", err))
return
}
newAtk = atk
newRtk = rtk
if ctx, err = GetAuthContext(claims.ID); err == nil {
var heldPerms map[string]any
rawHeldPerms, _ := jsoniter.Marshal(ctx.Account.PermNodes)
_ = jsoniter.Unmarshal(rawHeldPerms, &heldPerms)
perms = FilterPermNodes(heldPerms, ctx.Ticket.Claims)
return
}
err = fiber.NewError(fiber.StatusUnauthorized, err.Error())
return
}
func GetAuthContext(jti string) (models.AuthContext, error) {
var err error
var ctx models.AuthContext
if val, ok := authContextCache[jti]; ok {
ctx = val
ctx.LastUsedAt = time.Now()
authContextMutex.Lock()
authContextCache[jti] = ctx
authContextMutex.Unlock()
log.Debug().Str("jti", jti).Msg("Used an auth context cache")
} else {
ctx, err = CacheAuthContext(jti)
log.Debug().Str("jti", jti).Msg("Created a new auth context cache")
}
return ctx, err
}
func CacheAuthContext(jti string) (models.AuthContext, error) {
var ctx models.AuthContext
// Query data from primary database
ticket, err := GetTicketWithToken(jti)
if err != nil {
return ctx, fmt.Errorf("invalid auth ticket: %v", err)
} else if err := ticket.IsAvailable(); err != nil {
return ctx, fmt.Errorf("unavailable auth ticket: %v", err)
}
user, err := GetAccount(ticket.AccountID)
if err != nil {
return ctx, fmt.Errorf("invalid account: %v", err)
}
ctx = models.AuthContext{
Ticket: ticket,
Account: user,
LastUsedAt: time.Now(),
}
// Put the data into memory for cache
authContextMutex.Lock()
authContextCache[jti] = ctx
authContextMutex.Unlock()
return ctx, nil
}
func RecycleAuthContext() {
if len(authContextCache) == 0 {
return
}
affected := 0
for key, val := range authContextCache {
if val.LastUsedAt.Add(60*time.Second).Unix() < time.Now().Unix() {
affected++
authContextMutex.Lock()
delete(authContextCache, key)
authContextMutex.Unlock()
}
}
log.Debug().Int("affected", affected).Msg("Recycled auth context...")
}
func InvalidAuthCacheWithUser(userId uint) {
for key, val := range authContextCache {
if val.Account.ID == userId {
authContextMutex.Lock()
delete(authContextCache, key)
authContextMutex.Unlock()
}
}
}