Support x509 certificate on iOS.

net/base/x509_util_ios.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This file contains functions for iOS to glue NSS and Security.framework
+// together.
+
+#ifndef NET_BASE_X509_UTIL_IOS_H_
+#define NET_BASE_X509_UTIL_IOS_H_
+
+#include <Security/Security.h>
+
+// Forward declaration; real one in <cert.h>
+typedef struct CERTCertificateStr CERTCertificate;
+
+namespace net {
+namespace x509_util_ios {
+
+// Converts a Security.framework certificate handle (SecCertificateRef) into
+// an NSS certificate handle (CERTCertificate*).
+CERTCertificate* CreateNSSCertHandleFromOSHandle(SecCertificateRef cert_handle);
+
+// Converts an NSS certificate handle (CERTCertificate*) into a
+// Security.framework handle (SecCertificateRef)
+SecCertificateRef CreateOSCertHandleFromNSSHandle(
+    CERTCertificate* nss_cert_handle);
+
+// This is a wrapper class around the native NSS certificate handle.
+// The constructor copies the certificate data from |cert_handle| and
+// uses the NSS library to parse it.
+class NSSCertificate {
+ public:
+  explicit NSSCertificate(SecCertificateRef cert_handle);
+  ~NSSCertificate();
+  CERTCertificate* cert_handle();
+ private:
+  CERTCertificate* nss_cert_handle_;
+};
+
+}  // namespace x509_util_ios
+}  // namespace net
+
+#endif  // NET_BASE_X509_UTIL_IOS_H_