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// 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.
#ifndef NET_BASE_CERT_VERIFY_PROC_H_
#define NET_BASE_CERT_VERIFY_PROC_H_
#include <string>
#include <vector>
#include "base/gtest_prod_util.h"
#include "base/memory/ref_counted.h"
#include "net/base/net_export.h"
#include "net/base/x509_cert_types.h"
namespace net {
class CertVerifyResult;
class CRLSet;
class X509Certificate;
// Class to perform certificate path building and verification for various
// certificate uses. All methods of this class must be thread-safe, as they
// may be called from various non-joinable worker threads.
class NET_EXPORT CertVerifyProc
: public base::RefCountedThreadSafe<CertVerifyProc> {
public:
// Creates and returns the default CertVerifyProc.
static CertVerifyProc* CreateDefault();
// Verifies the certificate against the given hostname as an SSL server
// certificate. Returns OK if successful or an error code upon failure.
//
// The |*verify_result| structure, including the |verify_result->cert_status|
// bitmask, is always filled out regardless of the return value. If the
// certificate has multiple errors, the corresponding status flags are set in
// |verify_result->cert_status|, and the error code for the most serious
// error is returned.
//
// |flags| is bitwise OR'd of VerifyFlags:
//
// If VERIFY_REV_CHECKING_ENABLED is set in |flags|, online certificate
// revocation checking is performed (i.e. OCSP and downloading CRLs). CRLSet
// based revocation checking is always enabled, regardless of this flag, if
// |crl_set| is given.
//
// If VERIFY_EV_CERT is set in |flags| too, EV certificate verification is
// performed.
//
// |crl_set| points to an optional CRLSet structure which can be used to
// avoid revocation checks over the network.
int Verify(X509Certificate* cert,
const std::string& hostname,
int flags,
CRLSet* crl_set,
CertVerifyResult* verify_result);
protected:
friend class base::RefCountedThreadSafe<CertVerifyProc>;
FRIEND_TEST_ALL_PREFIXES(CertVerifyProcTest, DigiNotarCerts);
CertVerifyProc();
virtual ~CertVerifyProc();
private:
// Performs the actual verification using the desired underlying
// cryptographic library.
virtual int VerifyInternal(X509Certificate* cert,
const std::string& hostname,
int flags,
CRLSet* crl_set,
CertVerifyResult* verify_result) = 0;
// Returns true if |cert| is explicitly blacklisted.
static bool IsBlacklisted(X509Certificate* cert);
// IsPublicKeyBlacklisted returns true iff one of |public_key_hashes| (which
// are hashes of SubjectPublicKeyInfo structures) is explicitly blocked.
static bool IsPublicKeyBlacklisted(const HashValueVector& public_key_hashes);
};
} // namespace net
#endif // NET_BASE_CERT_VERIFY_PROC_H_
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