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/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef PublicKeyPinningService_h
#define PublicKeyPinningService_h

#include "CertVerifier.h"
#include "ScopedNSSTypes.h"
#include "cert.h"
#include "nsString.h"
#include "nsTArray.h"
#include "pkix/Time.h"

namespace mozilla {
namespace psm {

class PublicKeyPinningService
{
public:
  /**
   * Sets chainHasValidPins to true if the given (host, certList) passes pinning
   * checks, or to false otherwise. If the host is pinned, returns true via
   * chainHasValidPins if one of the keys in the given certificate chain matches
   * the pin set specified by the hostname. The certList's head is the EE cert
   * and the tail is the trust anchor.
   * Note: if an alt name is a wildcard, it won't necessarily find a pinset
   * that would otherwise be valid for it
   */
  static nsresult ChainHasValidPins(const UniqueCERTCertList& certList,
                                    const char* hostname,
                                    mozilla::pkix::Time time,
                                    bool enforceTestMode,
                            /*out*/ bool& chainHasValidPins);
  /**
   * Sets chainMatchesPinset to true if there is any intersection between the
   * certificate list and the pins specified in the aSHA256keys array.
   * Values passed in are assumed to be in base64 encoded form.
   */
  static nsresult ChainMatchesPinset(const UniqueCERTCertList& certList,
                                     const nsTArray<nsCString>& aSHA256keys,
                             /*out*/ bool& chainMatchesPinset);

  /**
   * Returns true via the output parameter hostHasPins if there is pinning
   * information for the given host that is valid at the given time, and false
   * otherwise.
   */
  static nsresult HostHasPins(const char* hostname,
                              mozilla::pkix::Time time,
                              bool enforceTestMode,
                      /*out*/ bool& hostHasPins);

  /**
   * Given a hostname of potentially mixed case with potentially multiple
   * trailing '.' (see bug 1118522), canonicalizes it to lowercase with no
   * trailing '.'.
   */
  static nsAutoCString CanonicalizeHostname(const char* hostname);
};

}} // namespace mozilla::psm

#endif // PublicKeyPinningService_h