net: split net/ssl out of net/base

net/base/client_cert_store_impl_mac.cc

-// 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.
-
-#include "net/base/client_cert_store_impl.h"
-
-#include <CommonCrypto/CommonDigest.h>
-#include <CoreFoundation/CFArray.h>
-#include <CoreServices/CoreServices.h>
-#include <Security/SecBase.h>
-#include <Security/Security.h>
-
-#include <algorithm>
-#include <string>
-
-#include "base/logging.h"
-#include "base/mac/mac_logging.h"
-#include "base/mac/scoped_cftyperef.h"
-#include "base/synchronization/lock.h"
-#include "base/sys_string_conversions.h"
-#include "crypto/mac_security_services_lock.h"
-#include "net/base/host_port_pair.h"
-#include "net/base/x509_util.h"
-
-using base::mac::ScopedCFTypeRef;
-
-namespace net {
-
-namespace {
-
-bool GetClientCertsImpl(const scoped_refptr<X509Certificate>& preferred_cert,
-                        const CertificateList& regular_certs,
-                        const SSLCertRequestInfo& request,
-                        CertificateList* selected_certs) {
-  CertificateList preliminary_list;
-  if (preferred_cert)
-    preliminary_list.push_back(preferred_cert);
-  preliminary_list.insert(preliminary_list.end(), regular_certs.begin(),
-                          regular_certs.end());
-
-  selected_certs->clear();
-  for (size_t i = 0; i < preliminary_list.size(); ++i) {
-    scoped_refptr<X509Certificate>& cert = preliminary_list[i];
-    if (cert->HasExpired() || !cert->SupportsSSLClientAuth())
-      continue;
-
-    // Skip duplicates (a cert may be in multiple keychains).
-    const SHA1HashValue& fingerprint = cert->fingerprint();
-    size_t pos;
-    for (pos = 0; pos < selected_certs->size(); ++pos) {
-      if ((*selected_certs)[pos]->fingerprint().Equals(fingerprint))
-        break;
-    }
-    if (pos < selected_certs->size())
-      continue;
-
-    // Check if the certificate issuer is allowed by the server.
-    if (!request.cert_authorities.empty() &&
-        !cert->IsIssuedByEncoded(request.cert_authorities)) {
-      continue;
-    }
-    selected_certs->push_back(cert);
-  }
-
-  // Preferred cert should appear first in the ui, so exclude it from the
-  // sorting.
-  CertificateList::iterator sort_begin = selected_certs->begin();
-  CertificateList::iterator sort_end = selected_certs->end();
-  if (preferred_cert &&
-      sort_begin != sort_end &&
-      *sort_begin == preferred_cert) {
-    ++sort_begin;
-  }
-  sort(sort_begin, sort_end, x509_util::ClientCertSorter());
-  return true;
-}
-
-}  // namespace
-
-bool ClientCertStoreImpl::GetClientCerts(const SSLCertRequestInfo& request,
-                                         CertificateList* selected_certs) {
-  std::string server_domain =
-      HostPortPair::FromString(request.host_and_port).host();
-
-  ScopedCFTypeRef<SecIdentityRef> preferred_identity;
-  if (!server_domain.empty()) {
-    // See if there's an identity preference for this domain:
-    ScopedCFTypeRef<CFStringRef> domain_str(
-        base::SysUTF8ToCFStringRef("https://" + server_domain));
-    SecIdentityRef identity = NULL;
-    // While SecIdentityCopyPreferences appears to take a list of CA issuers
-    // to restrict the identity search to, within Security.framework the
-    // argument is ignored and filtering unimplemented. See
-    // SecIdentity.cpp in libsecurity_keychain, specifically
-    // _SecIdentityCopyPreferenceMatchingName().
-    {
-      base::AutoLock lock(crypto::GetMacSecurityServicesLock());
-      if (SecIdentityCopyPreference(domain_str, 0, NULL, &identity) == noErr)
-        preferred_identity.reset(identity);
-    }
-  }
-
-  // Now enumerate the identities in the available keychains.
-  scoped_refptr<X509Certificate> preferred_cert = NULL;
-  CertificateList regular_certs;
-
-  SecIdentitySearchRef search = NULL;
-  OSStatus err;
-  {
-    base::AutoLock lock(crypto::GetMacSecurityServicesLock());
-    err = SecIdentitySearchCreate(NULL, CSSM_KEYUSE_SIGN, &search);
-  }
-  if (err)
-    return false;
-  ScopedCFTypeRef<SecIdentitySearchRef> scoped_search(search);
-  while (!err) {
-    SecIdentityRef identity = NULL;
-    {
-      base::AutoLock lock(crypto::GetMacSecurityServicesLock());
-      err = SecIdentitySearchCopyNext(search, &identity);
-    }
-    if (err)
-      break;
-    ScopedCFTypeRef<SecIdentityRef> scoped_identity(identity);
-
-    SecCertificateRef cert_handle;
-    err = SecIdentityCopyCertificate(identity, &cert_handle);
-    if (err != noErr)
-      continue;
-    ScopedCFTypeRef<SecCertificateRef> scoped_cert_handle(cert_handle);
-
-    scoped_refptr<X509Certificate> cert(
-        X509Certificate::CreateFromHandle(cert_handle,
-                                          X509Certificate::OSCertHandles()));
-
-    if (preferred_identity && CFEqual(preferred_identity, identity)) {
-      // Only one certificate should match.
-      DCHECK(!preferred_cert);
-      preferred_cert = cert;
-    } else {
-      regular_certs.push_back(cert);
-    }
-  }
-
-  if (err != errSecItemNotFound) {
-    OSSTATUS_LOG(ERROR, err) << "SecIdentitySearch error";
-    return false;
-  }
-
-  return GetClientCertsImpl(preferred_cert, regular_certs, request,
-                            selected_certs);
-}
-
-bool ClientCertStoreImpl::SelectClientCerts(const CertificateList& input_certs,
-                                            const SSLCertRequestInfo& request,
-                                            CertificateList* selected_certs) {
-  return GetClientCertsImpl(NULL, input_certs, request,
-                            selected_certs);
-}
-
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-bool ClientCertStoreImpl::SelectClientCertsGivenPreferred(
-      const scoped_refptr<X509Certificate>& preferred_cert,
-      const CertificateList& regular_certs,
-      const SSLCertRequestInfo& request,
-      CertificateList* selected_certs) {
-  return GetClientCertsImpl(preferred_cert, regular_certs, request,
-                            selected_certs);
-}
-#endif
-
-}  // namespace net