net: extract net/cert out of net/base

net/base/x509_certificate_win.cc

Index: net/base/x509_certificate_win.cc
diff --git a/net/base/x509_certificate_win.cc b/net/base/x509_certificate_win.cc
deleted file mode 100644
index 8a83e41a64e35a06f9feccf95e425aaaadbd5801..0000000000000000000000000000000000000000
--- a/net/base/x509_certificate_win.cc
+++ /dev/null
@@ -1,505 +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/x509_certificate.h"
-
-#include <blapi.h>  // Implement CalculateChainFingerprint() with NSS.
-
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/pickle.h"
-#include "base/sha1.h"
-#include "base/string_util.h"
-#include "base/utf_string_conversions.h"
-#include "crypto/capi_util.h"
-#include "crypto/rsa_private_key.h"
-#include "crypto/scoped_capi_types.h"
-#include "net/base/net_errors.h"
-
-#pragma comment(lib, "crypt32.lib")
-
-using base::Time;
-
-namespace net {
-
-namespace {
-
-typedef crypto::ScopedCAPIHandle<
-    HCERTSTORE,
-    crypto::CAPIDestroyerWithFlags<HCERTSTORE,
-                                   CertCloseStore, 0> > ScopedHCERTSTORE;
-
-void ExplodedTimeToSystemTime(const base::Time::Exploded& exploded,
-                              SYSTEMTIME* system_time) {
-  system_time->wYear = exploded.year;
-  system_time->wMonth = exploded.month;
-  system_time->wDayOfWeek = exploded.day_of_week;
-  system_time->wDay = exploded.day_of_month;
-  system_time->wHour = exploded.hour;
-  system_time->wMinute = exploded.minute;
-  system_time->wSecond = exploded.second;
-  system_time->wMilliseconds = exploded.millisecond;
-}
-
-//-----------------------------------------------------------------------------
-
-// Decodes the cert's subjectAltName extension into a CERT_ALT_NAME_INFO
-// structure and stores it in *output.
-void GetCertSubjectAltName(PCCERT_CONTEXT cert,
-                           scoped_ptr_malloc<CERT_ALT_NAME_INFO>* output) {
-  PCERT_EXTENSION extension = CertFindExtension(szOID_SUBJECT_ALT_NAME2,
-                                                cert->pCertInfo->cExtension,
-                                                cert->pCertInfo->rgExtension);
-  if (!extension)
-    return;
-
-  CRYPT_DECODE_PARA decode_para;
-  decode_para.cbSize = sizeof(decode_para);
-  decode_para.pfnAlloc = crypto::CryptAlloc;
-  decode_para.pfnFree = crypto::CryptFree;
-  CERT_ALT_NAME_INFO* alt_name_info = NULL;
-  DWORD alt_name_info_size = 0;
-  BOOL rv;
-  rv = CryptDecodeObjectEx(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
-                           szOID_SUBJECT_ALT_NAME2,
-                           extension->Value.pbData,
-                           extension->Value.cbData,
-                           CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG,
-                           &decode_para,
-                           &alt_name_info,
-                           &alt_name_info_size);
-  if (rv)
-    output->reset(alt_name_info);
-}
-
-void AddCertsFromStore(HCERTSTORE store,
-                       X509Certificate::OSCertHandles* results) {
-  PCCERT_CONTEXT cert = NULL;
-
-  while ((cert = CertEnumCertificatesInStore(store, cert)) != NULL) {
-    PCCERT_CONTEXT to_add = NULL;
-    if (CertAddCertificateContextToStore(
-        NULL,  // The cert won't be persisted in any cert store. This breaks
-               // any association the context currently has to |store|, which
-               // allows us, the caller, to safely close |store| without
-               // releasing the cert handles.
-        cert,
-        CERT_STORE_ADD_USE_EXISTING,
-        &to_add) && to_add != NULL) {
-      // When processing stores generated from PKCS#7/PKCS#12 files, it
-      // appears that the order returned is the inverse of the order that it
-      // appeared in the file.
-      // TODO(rsleevi): Ensure this order is consistent across all Win
-      // versions
-      results->insert(results->begin(), to_add);
-    }
-  }
-}
-
-X509Certificate::OSCertHandles ParsePKCS7(const char* data, size_t length) {
-  X509Certificate::OSCertHandles results;
-  CERT_BLOB data_blob;
-  data_blob.cbData = length;
-  data_blob.pbData = reinterpret_cast<BYTE*>(const_cast<char*>(data));
-
-  HCERTSTORE out_store = NULL;
-
-  DWORD expected_types = CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED |
-                         CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED_EMBED |
-                         CERT_QUERY_CONTENT_FLAG_PKCS7_UNSIGNED;
-
-  if (!CryptQueryObject(CERT_QUERY_OBJECT_BLOB, &data_blob, expected_types,
-                        CERT_QUERY_FORMAT_FLAG_BINARY, 0, NULL, NULL, NULL,
-                        &out_store, NULL, NULL) || out_store == NULL) {
-    return results;
-  }
-
-  AddCertsFromStore(out_store, &results);
-  CertCloseStore(out_store, CERT_CLOSE_STORE_CHECK_FLAG);
-
-  return results;
-}
-
-// Given a CERT_NAME_BLOB, returns true if it appears in a given list,
-// formatted as a vector of strings holding DER-encoded X.509
-// DistinguishedName entries.
-bool IsCertNameBlobInIssuerList(
-    CERT_NAME_BLOB* name_blob,
-    const std::vector<std::string>& issuer_names) {
-  for (std::vector<std::string>::const_iterator it = issuer_names.begin();
-       it != issuer_names.end(); ++it) {
-    CERT_NAME_BLOB issuer_blob;
-    issuer_blob.pbData =
-        reinterpret_cast<BYTE*>(const_cast<char*>(it->data()));
-    issuer_blob.cbData = static_cast<DWORD>(it->length());
-
-    BOOL rb = CertCompareCertificateName(
-        X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, &issuer_blob, name_blob);
-    if (rb)
-      return true;
-  }
-  return false;
-}
-
-}  // namespace
-
-void X509Certificate::Initialize() {
-  DCHECK(cert_handle_);
-  subject_.ParseDistinguishedName(cert_handle_->pCertInfo->Subject.pbData,
-                                  cert_handle_->pCertInfo->Subject.cbData);
-  issuer_.ParseDistinguishedName(cert_handle_->pCertInfo->Issuer.pbData,
-                                 cert_handle_->pCertInfo->Issuer.cbData);
-
-  valid_start_ = Time::FromFileTime(cert_handle_->pCertInfo->NotBefore);
-  valid_expiry_ = Time::FromFileTime(cert_handle_->pCertInfo->NotAfter);
-
-  fingerprint_ = CalculateFingerprint(cert_handle_);
-  ca_fingerprint_ = CalculateCAFingerprint(intermediate_ca_certs_);
-
-  const CRYPT_INTEGER_BLOB* serial = &cert_handle_->pCertInfo->SerialNumber;
-  scoped_array<uint8> serial_bytes(new uint8[serial->cbData]);
-  for (unsigned i = 0; i < serial->cbData; i++)
-    serial_bytes[i] = serial->pbData[serial->cbData - i - 1];
-  serial_number_ = std::string(
-      reinterpret_cast<char*>(serial_bytes.get()), serial->cbData);
-}
-
-// static
-X509Certificate* X509Certificate::CreateSelfSigned(
-    crypto::RSAPrivateKey* key,
-    const std::string& subject,
-    uint32 serial_number,
-    base::TimeDelta valid_duration) {
-  // Get the ASN.1 encoding of the certificate subject.
-  std::wstring w_subject = ASCIIToWide(subject);
-  DWORD encoded_subject_length = 0;
-  if (!CertStrToName(
-          X509_ASN_ENCODING,
-          w_subject.c_str(),
-          CERT_X500_NAME_STR, NULL, NULL, &encoded_subject_length, NULL)) {
-    return NULL;
-  }
-
-  scoped_array<BYTE> encoded_subject(new BYTE[encoded_subject_length]);
-  if (!CertStrToName(
-          X509_ASN_ENCODING,
-          w_subject.c_str(),
-          CERT_X500_NAME_STR, NULL,
-          encoded_subject.get(),
-          &encoded_subject_length, NULL)) {
-    return NULL;
-  }
-
-  CERT_NAME_BLOB subject_name;
-  memset(&subject_name, 0, sizeof(subject_name));
-  subject_name.cbData = encoded_subject_length;
-  subject_name.pbData = encoded_subject.get();
-
-  CRYPT_ALGORITHM_IDENTIFIER sign_algo;
-  memset(&sign_algo, 0, sizeof(sign_algo));
-  sign_algo.pszObjId = szOID_RSA_SHA1RSA;
-
-  base::Time not_before = base::Time::Now();
-  base::Time not_after = not_before + valid_duration;
-  base::Time::Exploded exploded;
-
-  // Create the system time structs representing our exploded times.
-  not_before.UTCExplode(&exploded);
-  SYSTEMTIME start_time;
-  ExplodedTimeToSystemTime(exploded, &start_time);
-  not_after.UTCExplode(&exploded);
-  SYSTEMTIME end_time;
-  ExplodedTimeToSystemTime(exploded, &end_time);
-
-  PCCERT_CONTEXT cert_handle =
-      CertCreateSelfSignCertificate(key->provider(), &subject_name,
-                                    CERT_CREATE_SELFSIGN_NO_KEY_INFO, NULL,
-                                    &sign_algo, &start_time, &end_time, NULL);
-  DCHECK(cert_handle) << "Failed to create self-signed certificate: "
-                      << GetLastError();
-  if (!cert_handle)
-    return NULL;
-
-  X509Certificate* cert = CreateFromHandle(cert_handle, OSCertHandles());
-  FreeOSCertHandle(cert_handle);
-  return cert;
-}
-
-void X509Certificate::GetSubjectAltName(
-    std::vector<std::string>* dns_names,
-    std::vector<std::string>* ip_addrs) const {
-  if (dns_names)
-    dns_names->clear();
-  if (ip_addrs)
-    ip_addrs->clear();
-
-  if (!cert_handle_)
-    return;
-
-  scoped_ptr_malloc<CERT_ALT_NAME_INFO> alt_name_info;
-  GetCertSubjectAltName(cert_handle_, &alt_name_info);
-  CERT_ALT_NAME_INFO* alt_name = alt_name_info.get();
-  if (alt_name) {
-    int num_entries = alt_name->cAltEntry;
-    for (int i = 0; i < num_entries; i++) {
-      // dNSName is an ASN.1 IA5String representing a string of ASCII
-      // characters, so we can use WideToASCII here.
-      const CERT_ALT_NAME_ENTRY& entry = alt_name->rgAltEntry[i];
-
-      if (dns_names && entry.dwAltNameChoice == CERT_ALT_NAME_DNS_NAME) {
-        dns_names->push_back(WideToASCII(entry.pwszDNSName));
-      } else if (ip_addrs &&
-                 entry.dwAltNameChoice == CERT_ALT_NAME_IP_ADDRESS) {
-        ip_addrs->push_back(std::string(
-            reinterpret_cast<const char*>(entry.IPAddress.pbData),
-            entry.IPAddress.cbData));
-      }
-    }
-  }
-}
-
-PCCERT_CONTEXT X509Certificate::CreateOSCertChainForCert() const {
-  // Create an in-memory certificate store to hold this certificate and
-  // any intermediate certificates in |intermediate_ca_certs_|. The store
-  // will be referenced in the returned PCCERT_CONTEXT, and will not be freed
-  // until the PCCERT_CONTEXT is freed.
-  ScopedHCERTSTORE store(CertOpenStore(
-      CERT_STORE_PROV_MEMORY, 0, NULL,
-      CERT_STORE_DEFER_CLOSE_UNTIL_LAST_FREE_FLAG, NULL));
-  if (!store.get())
-    return NULL;
-
-  // NOTE: This preserves all of the properties of |os_cert_handle()| except
-  // for CERT_KEY_PROV_HANDLE_PROP_ID and CERT_KEY_CONTEXT_PROP_ID - the two
-  // properties that hold access to already-opened private keys. If a handle
-  // has already been unlocked (eg: PIN prompt), then the first time that the
-  // identity is used for client auth, it may prompt the user again.
-  PCCERT_CONTEXT primary_cert;
-  BOOL ok = CertAddCertificateContextToStore(store.get(), os_cert_handle(),
-                                             CERT_STORE_ADD_ALWAYS,
-                                             &primary_cert);
-  if (!ok || !primary_cert)
-    return NULL;
-
-  for (size_t i = 0; i < intermediate_ca_certs_.size(); ++i) {
-    CertAddCertificateContextToStore(store.get(), intermediate_ca_certs_[i],
-                                     CERT_STORE_ADD_ALWAYS, NULL);
-  }
-
-  // Note: |store| is explicitly not released, as the call to CertCloseStore()
-  // when |store| goes out of scope will not actually free the store. Instead,
-  // the store will be freed when |primary_cert| is freed.
-  return primary_cert;
-}
-
-// static
-bool X509Certificate::GetDEREncoded(X509Certificate::OSCertHandle cert_handle,
-                                    std::string* encoded) {
-  if (!cert_handle->pbCertEncoded || !cert_handle->cbCertEncoded)
-    return false;
-  encoded->assign(reinterpret_cast<char*>(cert_handle->pbCertEncoded),
-                  cert_handle->cbCertEncoded);
-  return true;
-}
-
-// static
-bool X509Certificate::IsSameOSCert(X509Certificate::OSCertHandle a,
-                                   X509Certificate::OSCertHandle b) {
-  DCHECK(a && b);
-  if (a == b)
-    return true;
-  return a->cbCertEncoded == b->cbCertEncoded &&
-      memcmp(a->pbCertEncoded, b->pbCertEncoded, a->cbCertEncoded) == 0;
-}
-
-// static
-X509Certificate::OSCertHandle X509Certificate::CreateOSCertHandleFromBytes(
-    const char* data, int length) {
-  OSCertHandle cert_handle = NULL;
-  if (!CertAddEncodedCertificateToStore(
-      NULL, X509_ASN_ENCODING, reinterpret_cast<const BYTE*>(data),
-      length, CERT_STORE_ADD_USE_EXISTING, &cert_handle))
-    return NULL;
-
-  return cert_handle;
-}
-
-X509Certificate::OSCertHandles X509Certificate::CreateOSCertHandlesFromBytes(
-    const char* data, int length, Format format) {
-  OSCertHandles results;
-  switch (format) {
-    case FORMAT_SINGLE_CERTIFICATE: {
-      OSCertHandle handle = CreateOSCertHandleFromBytes(data, length);
-      if (handle != NULL)
-        results.push_back(handle);
-      break;
-    }
-    case FORMAT_PKCS7:
-      results = ParsePKCS7(data, length);
-      break;
-    default:
-      NOTREACHED() << "Certificate format " << format << " unimplemented";
-      break;
-  }
-
-  return results;
-}
-
-// static
-X509Certificate::OSCertHandle X509Certificate::DupOSCertHandle(
-    OSCertHandle cert_handle) {
-  return CertDuplicateCertificateContext(cert_handle);
-}
-
-// static
-void X509Certificate::FreeOSCertHandle(OSCertHandle cert_handle) {
-  CertFreeCertificateContext(cert_handle);
-}
-
-// static
-SHA1HashValue X509Certificate::CalculateFingerprint(
-    OSCertHandle cert) {
-  DCHECK(NULL != cert->pbCertEncoded);
-  DCHECK_NE(static_cast<DWORD>(0), cert->cbCertEncoded);
-
-  BOOL rv;
-  SHA1HashValue sha1;
-  DWORD sha1_size = sizeof(sha1.data);
-  rv = CryptHashCertificate(NULL, CALG_SHA1, 0, cert->pbCertEncoded,
-                            cert->cbCertEncoded, sha1.data, &sha1_size);
-  DCHECK(rv && sha1_size == sizeof(sha1.data));
-  if (!rv)
-    memset(sha1.data, 0, sizeof(sha1.data));
-  return sha1;
-}
-
-// TODO(wtc): This function is implemented with NSS low-level hash
-// functions to ensure it is fast.  Reimplement this function with
-// CryptoAPI.  May need to cache the HCRYPTPROV to reduce the overhead.
-// static
-SHA1HashValue X509Certificate::CalculateCAFingerprint(
-    const OSCertHandles& intermediates) {
-  SHA1HashValue sha1;
-  memset(sha1.data, 0, sizeof(sha1.data));
-
-  SHA1Context* sha1_ctx = SHA1_NewContext();
-  if (!sha1_ctx)
-    return sha1;
-  SHA1_Begin(sha1_ctx);
-  for (size_t i = 0; i < intermediates.size(); ++i) {
-    PCCERT_CONTEXT ca_cert = intermediates[i];
-    SHA1_Update(sha1_ctx, ca_cert->pbCertEncoded, ca_cert->cbCertEncoded);
-  }
-  unsigned int result_len;
-  SHA1_End(sha1_ctx, sha1.data, &result_len, SHA1_LENGTH);
-  SHA1_DestroyContext(sha1_ctx, PR_TRUE);
-
-  return sha1;
-}
-
-// static
-X509Certificate::OSCertHandle
-X509Certificate::ReadOSCertHandleFromPickle(PickleIterator* pickle_iter) {
-  const char* data;
-  int length;
-  if (!pickle_iter->ReadData(&data, &length))
-    return NULL;
-
-  // Legacy serialized certificates were serialized with extended attributes,
-  // rather than as DER only. As a result, these serialized certificates are
-  // not portable across platforms and may have side-effects on Windows due
-  // to extended attributes being serialized/deserialized -
-  // http://crbug.com/118706. To avoid deserializing these attributes, write
-  // the deserialized cert into a temporary cert store and then create a new
-  // cert from the DER - that is, without attributes.
-  ScopedHCERTSTORE store(
-      CertOpenStore(CERT_STORE_PROV_MEMORY, 0, NULL, 0, NULL));
-  if (!store.get())
-    return NULL;
-
-  OSCertHandle cert_handle = NULL;
-  if (!CertAddSerializedElementToStore(
-          store.get(), reinterpret_cast<const BYTE*>(data), length,
-          CERT_STORE_ADD_NEW, 0, CERT_STORE_CERTIFICATE_CONTEXT_FLAG,
-          NULL, reinterpret_cast<const void **>(&cert_handle))) {
-    return NULL;
-  }
-
-  std::string encoded;
-  bool ok = GetDEREncoded(cert_handle, &encoded);
-  FreeOSCertHandle(cert_handle);
-  cert_handle = NULL;
-
-  if (ok)
-    cert_handle = CreateOSCertHandleFromBytes(encoded.data(), encoded.size());
-  return cert_handle;
-}
-
-// static
-bool X509Certificate::WriteOSCertHandleToPickle(OSCertHandle cert_handle,
-                                                Pickle* pickle) {
-  return pickle->WriteData(
-      reinterpret_cast<char*>(cert_handle->pbCertEncoded),
-      cert_handle->cbCertEncoded);
-}
-
-// static
-void X509Certificate::GetPublicKeyInfo(OSCertHandle cert_handle,
-                                       size_t* size_bits,
-                                       PublicKeyType* type) {
-  *type = kPublicKeyTypeUnknown;
-  *size_bits = 0;
-
-  PCCRYPT_OID_INFO oid_info = CryptFindOIDInfo(
-      CRYPT_OID_INFO_OID_KEY,
-      cert_handle->pCertInfo->SubjectPublicKeyInfo.Algorithm.pszObjId,
-      CRYPT_PUBKEY_ALG_OID_GROUP_ID);
-  if (!oid_info)
-    return;
-
-  CHECK_EQ(oid_info->dwGroupId,
-           static_cast<DWORD>(CRYPT_PUBKEY_ALG_OID_GROUP_ID));
-
-  *size_bits = CertGetPublicKeyLength(
-      X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
-      &cert_handle->pCertInfo->SubjectPublicKeyInfo);
-
-  switch (oid_info->Algid) {
-    case CALG_RSA_SIGN:
-    case CALG_RSA_KEYX:
-      *type = kPublicKeyTypeRSA;
-      break;
-    case CALG_DSS_SIGN:
-      *type = kPublicKeyTypeDSA;
-      break;
-    case CALG_ECDSA:
-      *type = kPublicKeyTypeECDSA;
-      break;
-    case CALG_ECDH:
-      *type = kPublicKeyTypeECDH;
-      break;
-  }
-}
-
-bool X509Certificate::IsIssuedByEncoded(
-    const std::vector<std::string>& valid_issuers) {
-
-  // If the certificate's issuer in the list?
-  if (IsCertNameBlobInIssuerList(&cert_handle_->pCertInfo->Issuer,
-                                 valid_issuers)) {
-    return true;
-  }
-  // Otherwise, is any of the intermediate CA subjects in the list?
-  for (OSCertHandles::iterator it = intermediate_ca_certs_.begin();
-       it != intermediate_ca_certs_.end(); ++it) {
-    if (IsCertNameBlobInIssuerList(&(*it)->pCertInfo->Issuer,
-                                   valid_issuers)) {
-      return true;
-    }
-  }
-
-  return false;
-}
-
-}  // namespace net