net: extract net/cert out of net/base

net/base/cert_verify_proc_openssl.cc

Index: net/base/cert_verify_proc_openssl.cc
diff --git a/net/base/cert_verify_proc_openssl.cc b/net/base/cert_verify_proc_openssl.cc
deleted file mode 100644
index 964ba263a030daa387d2116993a84d8f556a9dec..0000000000000000000000000000000000000000
--- a/net/base/cert_verify_proc_openssl.cc
+++ /dev/null
@@ -1,230 +0,0 @@
-// 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/cert_verify_proc_openssl.h"
-
-#include <openssl/x509v3.h>
-
-#include <string>
-#include <vector>
-
-#include "base/logging.h"
-#include "base/sha1.h"
-#include "crypto/openssl_util.h"
-#include "crypto/sha2.h"
-#include "net/base/asn1_util.h"
-#include "net/base/cert_status_flags.h"
-#include "net/base/cert_verifier.h"
-#include "net/base/cert_verify_result.h"
-#include "net/base/net_errors.h"
-#include "net/base/x509_certificate.h"
-
-namespace net {
-
-namespace {
-
-// Maps X509_STORE_CTX_get_error() return values to our cert status flags.
-CertStatus MapCertErrorToCertStatus(int err) {
-  switch (err) {
-    case X509_V_ERR_SUBJECT_ISSUER_MISMATCH:
-      return CERT_STATUS_COMMON_NAME_INVALID;
-    case X509_V_ERR_CERT_NOT_YET_VALID:
-    case X509_V_ERR_CERT_HAS_EXPIRED:
-    case X509_V_ERR_CRL_NOT_YET_VALID:
-    case X509_V_ERR_CRL_HAS_EXPIRED:
-    case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
-    case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
-    case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
-    case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
-      return CERT_STATUS_DATE_INVALID;
-    case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
-    case X509_V_ERR_UNABLE_TO_GET_CRL:
-    case X509_V_ERR_INVALID_CA:
-    case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
-    case X509_V_ERR_INVALID_NON_CA:
-    case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
-    case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
-    case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
-      return CERT_STATUS_AUTHORITY_INVALID;
-#if 0
-// TODO(bulach): what should we map to these status?
-      return CERT_STATUS_NO_REVOCATION_MECHANISM;
-      return CERT_STATUS_UNABLE_TO_CHECK_REVOCATION;
-#endif
-    case X509_V_ERR_CERT_REVOKED:
-      return CERT_STATUS_REVOKED;
-    // All these status are mapped to CERT_STATUS_INVALID.
-    case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
-    case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
-    case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
-    case X509_V_ERR_CERT_SIGNATURE_FAILURE:
-    case X509_V_ERR_CRL_SIGNATURE_FAILURE:
-    case X509_V_ERR_OUT_OF_MEM:
-    case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
-    case X509_V_ERR_CERT_CHAIN_TOO_LONG:
-    case X509_V_ERR_PATH_LENGTH_EXCEEDED:
-    case X509_V_ERR_INVALID_PURPOSE:
-    case X509_V_ERR_CERT_UNTRUSTED:
-    case X509_V_ERR_CERT_REJECTED:
-    case X509_V_ERR_AKID_SKID_MISMATCH:
-    case X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH:
-    case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
-    case X509_V_ERR_KEYUSAGE_NO_CERTSIGN:
-    case X509_V_ERR_KEYUSAGE_NO_CRL_SIGN:
-    case X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION:
-    case X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED:
-    case X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE:
-    case X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED:
-    case X509_V_ERR_INVALID_EXTENSION:
-    case X509_V_ERR_INVALID_POLICY_EXTENSION:
-    case X509_V_ERR_NO_EXPLICIT_POLICY:
-    case X509_V_ERR_UNNESTED_RESOURCE:
-    case X509_V_ERR_APPLICATION_VERIFICATION:
-      return CERT_STATUS_INVALID;
-    default:
-      NOTREACHED() << "Invalid X509 err " << err;
-      return CERT_STATUS_INVALID;
-  }
-}
-
-// sk_X509_free is a function-style macro, so can't be used as a template
-// param directly.
-void sk_X509_free_fn(STACK_OF(X509)* st) {
-  sk_X509_free(st);
-}
-
-void GetCertChainInfo(X509_STORE_CTX* store_ctx,
-                      CertVerifyResult* verify_result) {
-  STACK_OF(X509)* chain = X509_STORE_CTX_get_chain(store_ctx);
-  X509* verified_cert = NULL;
-  std::vector<X509*> verified_chain;
-  for (int i = 0; i < sk_X509_num(chain); ++i) {
-    X509* cert = sk_X509_value(chain, i);
-    if (i == 0) {
-      verified_cert = cert;
-    } else {
-      verified_chain.push_back(cert);
-    }
-
-    // Only check the algorithm status for certificates that are not in the
-    // trust store.
-    if (i < store_ctx->last_untrusted) {
-      int sig_alg = OBJ_obj2nid(cert->sig_alg->algorithm);
-      if (sig_alg == NID_md2WithRSAEncryption) {
-        verify_result->has_md2 = true;
-        if (i != 0)
-          verify_result->has_md2_ca = true;
-      } else if (sig_alg == NID_md4WithRSAEncryption) {
-        verify_result->has_md4 = true;
-      } else if (sig_alg == NID_md5WithRSAEncryption) {
-        verify_result->has_md5 = true;
-        if (i != 0)
-          verify_result->has_md5_ca = true;
-      }
-    }
-  }
-
-  if (verified_cert) {
-    verify_result->verified_cert =
-        X509Certificate::CreateFromHandle(verified_cert, verified_chain);
-  }
-}
-
-void AppendPublicKeyHashes(X509_STORE_CTX* store_ctx,
-                           HashValueVector* hashes) {
-  STACK_OF(X509)* chain = X509_STORE_CTX_get_chain(store_ctx);
-  for (int i = 0; i < sk_X509_num(chain); ++i) {
-    X509* cert = sk_X509_value(chain, i);
-
-    std::string der_data;
-    if (!X509Certificate::GetDEREncoded(cert, &der_data))
-      continue;
-
-    base::StringPiece der_bytes(der_data);
-    base::StringPiece spki_bytes;
-    if (!asn1::ExtractSPKIFromDERCert(der_bytes, &spki_bytes))
-      continue;
-
-    HashValue sha1(HASH_VALUE_SHA1);
-    base::SHA1HashBytes(reinterpret_cast<const uint8*>(spki_bytes.data()),
-                        spki_bytes.size(), sha1.data());
-    hashes->push_back(sha1);
-
-    HashValue sha256(HASH_VALUE_SHA256);
-    crypto::SHA256HashString(spki_bytes, sha1.data(), crypto::kSHA256Length);
-    hashes->push_back(sha256);
-  }
-}
-
-}  // namespace
-
-CertVerifyProcOpenSSL::CertVerifyProcOpenSSL() {}
-
-CertVerifyProcOpenSSL::~CertVerifyProcOpenSSL() {}
-
-bool CertVerifyProcOpenSSL::SupportsAdditionalTrustAnchors() const {
-  return false;
-}
-
-int CertVerifyProcOpenSSL::VerifyInternal(
-    X509Certificate* cert,
-    const std::string& hostname,
-    int flags,
-    CRLSet* crl_set,
-    const CertificateList& additional_trust_anchors,
-    CertVerifyResult* verify_result) {
-  crypto::EnsureOpenSSLInit();
-
-  if (!cert->VerifyNameMatch(hostname))
-    verify_result->cert_status |= CERT_STATUS_COMMON_NAME_INVALID;
-
-  crypto::ScopedOpenSSL<X509_STORE_CTX, X509_STORE_CTX_free> ctx(
-      X509_STORE_CTX_new());
-
-  crypto::ScopedOpenSSL<STACK_OF(X509), sk_X509_free_fn> intermediates(
-      sk_X509_new_null());
-  if (!intermediates.get())
-    return ERR_OUT_OF_MEMORY;
-
-  const X509Certificate::OSCertHandles& os_intermediates =
-      cert->GetIntermediateCertificates();
-  for (X509Certificate::OSCertHandles::const_iterator it =
-       os_intermediates.begin(); it != os_intermediates.end(); ++it) {
-    if (!sk_X509_push(intermediates.get(), *it))
-      return ERR_OUT_OF_MEMORY;
-  }
-  if (X509_STORE_CTX_init(ctx.get(), X509Certificate::cert_store(),
-                          cert->os_cert_handle(), intermediates.get()) != 1) {
-    NOTREACHED();
-    return ERR_FAILED;
-  }
-
-  if (X509_verify_cert(ctx.get()) != 1) {
-    int x509_error = X509_STORE_CTX_get_error(ctx.get());
-    CertStatus cert_status = MapCertErrorToCertStatus(x509_error);
-    LOG(ERROR) << "X509 Verification error "
-        << X509_verify_cert_error_string(x509_error)
-        << " : " << x509_error
-        << " : " << X509_STORE_CTX_get_error_depth(ctx.get())
-        << " : " << cert_status;
-    verify_result->cert_status |= cert_status;
-  }
-
-  GetCertChainInfo(ctx.get(), verify_result);
-  AppendPublicKeyHashes(ctx.get(), &verify_result->public_key_hashes);
-  if (IsCertStatusError(verify_result->cert_status))
-    return MapCertStatusToNetError(verify_result->cert_status);
-
-  // Currently we only ues OpenSSL's default root CA paths, so treat all
-  // correctly verified certs as being from a known root.
-  // TODO(joth): if the motivations described in
-  // http://src.chromium.org/viewvc/chrome?view=rev&revision=80778 become an
-  // issue on OpenSSL builds, we will need to embed a hardcoded list of well
-  // known root CAs, as per the _mac and _win versions.
-  verify_result->is_issued_by_known_root = true;
-
-  return OK;
-}
-
-}  // namespace net