108 lines
1.9 KiB
Go
108 lines
1.9 KiB
Go
package jwt_adapter
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import (
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"context"
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"fmt"
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"os"
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"time"
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"github.com/dgrijalva/jwt-go"
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)
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const (
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DefaultAccessSecret = "awesomeAC"
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DefaultHeaderKey = "Authorization"
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RoleKey = "role"
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)
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var (
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accessSecret = DefaultAccessSecret
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)
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type JwtAdapter struct {
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jwt.StandardClaims
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Id string `json:"id"`
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}
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func init() {
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aS := os.Getenv("JWT_SECRET")
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fmt.Println("JWT_SECRET", aS)
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if len(aS) != 0 {
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accessSecret = aS
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}
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}
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func Get(ctx context.Context) *JwtAdapter {
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if adapter, ok := ctx.Value(DefaultHeaderKey).(*JwtAdapter); ok {
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return adapter
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}
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return nil
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}
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func (receiver *JwtAdapter) SetUserID(ID string) {
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receiver.Id = ID
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}
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func (receiver *JwtAdapter) GetUserID() string {
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return receiver.Id
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}
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func (receiver *JwtAdapter) Validate() error {
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if err := receiver.Valid(); err != nil {
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return err
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}
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if !receiver.VerifyIssuer("pena-auth-service", true) {
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return fmt.Errorf("invalid issuer")
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}
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if !receiver.VerifyAudience("pena", true) {
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return fmt.Errorf("invalid audience")
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}
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return nil
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}
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func Decode(tokenString string) (*JwtAdapter, error) {
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fmt.Println("JWT_SECRET2", tokenString, accessSecret)
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token, err := jwt.ParseWithClaims(tokenString, &JwtAdapter{}, func(token *jwt.Token) (interface{}, error) {
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if _, ok := token.Method.(*jwt.SigningMethodRSA); !ok {
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return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"])
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}
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return jwt.ParseRSAPublicKeyFromPEM([]byte(accessSecret))
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})
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if err != nil {
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fmt.Println("parserr", err)
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return nil, err
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}
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claims, ok := token.Claims.(*JwtAdapter)
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if !ok && !token.Valid {
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return nil, fmt.Errorf("ErrorNoValidClaims")
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}
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if err := claims.Validate(); err != nil {
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fmt.Println("validerr", err)
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return nil, err
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}
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return claims, nil
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}
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func GetRole(ctx context.Context) string {
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role := ctx.Value(RoleKey)
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if role == nil {
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return ""
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}
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return role.(string)
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}
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func Timestamp() int64 {
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return time.Now().UnixNano() / int64(time.Millisecond)
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}
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