media/mtransport/dtlsidentity.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6 #ifndef dtls_identity_h__
   7 #define dtls_identity_h__
   8
   9 #include <string>
  10
  11 #include "m_cpp_utils.h"
  12 #include "mozilla/RefPtr.h"
  13 #include "nsISupportsImpl.h"
  14 #include "ScopedNSSTypes.h"
  15
  16 // All code in this module requires NSS to be live.
  17 // Callers must initialize NSS and implement the nsNSSShutdownObject
  18 // protocol.
  19 namespace mozilla {
  20
  21 class DtlsIdentity {
  22  private:
  23   ~DtlsIdentity();
  24
  25  public:
  26   // Generate an identity with a random name.
  27   static TemporaryRef<DtlsIdentity> Generate();
  28
  29   // Note: the following two functions just provide access. They
  30   // do not transfer ownership. If you want a pointer that lasts
  31   // past the lifetime of the DtlsIdentity, you must make
  32   // a copy yourself.
  33   CERTCertificate *cert() { return cert_; }
  34   SECKEYPrivateKey *privkey() { return privkey_; }
  35
  36   nsresult ComputeFingerprint(const std::string algorithm,
  37                               unsigned char *digest,
  38                               std::size_t size,
  39                               std::size_t *digest_length);
  40
  41   static nsresult ComputeFingerprint(const CERTCertificate *cert,
  42                                      const std::string algorithm,
  43                                      unsigned char *digest,
  44                                      std::size_t size,
  45                                      std::size_t *digest_length);
  46   static const std::string DEFAULT_HASH_ALGORITHM;
  47   enum {
  48     HASH_ALGORITHM_MAX_LENGTH = 64
  49   };
  50
  51   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(DtlsIdentity)
  52
  53 private:
  54   DtlsIdentity(SECKEYPrivateKey *privkey, CERTCertificate *cert)
  55       : privkey_(privkey), cert_(cert) {}
  56   DISALLOW_COPY_ASSIGN(DtlsIdentity);
  57
  58   ScopedSECKEYPrivateKey privkey_;
  59   CERTCertificate *cert_;  // TODO: Using a smart pointer here causes link
  60                            // errors.
  61 };
  62 }  // close namespace
  63 #endif