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33 lines
1.0 KiB
Go
33 lines
1.0 KiB
Go
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package authz
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import (
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"context"
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"encoding/base64"
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"fmt"
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"github.com/zitadel/zitadel/internal/crypto"
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zitadel_errors "github.com/zitadel/zitadel/internal/errors"
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"github.com/zitadel/zitadel/internal/telemetry/tracing"
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)
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const (
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SessionTokenPrefix = "sess_"
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SessionTokenFormat = SessionTokenPrefix + "%s:%s"
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)
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func SessionTokenVerifier(algorithm crypto.EncryptionAlgorithm) func(ctx context.Context, sessionToken, sessionID, tokenID string) (err error) {
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return func(ctx context.Context, sessionToken, sessionID, tokenID string) (err error) {
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decodedToken, err := base64.RawURLEncoding.DecodeString(sessionToken)
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if err != nil {
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return err
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}
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_, spanPasswordComparison := tracing.NewNamedSpan(ctx, "crypto.CompareHash")
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token, err := algorithm.DecryptString(decodedToken, algorithm.EncryptionKeyID())
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spanPasswordComparison.EndWithError(err)
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if err != nil || token != fmt.Sprintf(SessionTokenFormat, sessionID, tokenID) {
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return zitadel_errors.ThrowPermissionDenied(err, "COMMAND-sGr42", "Errors.Session.Token.Invalid")
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}
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return nil
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}
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}
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