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// Copyright (c) 2009 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_database.h"
// Work around https://bugzilla.mozilla.org/show_bug.cgi?id=455424
// until NSS 3.12.2 comes out and we update to it.
#define Lock FOO_NSS_Lock
#include <pk11pub.h>
#include <secmod.h>
#include <ssl.h>
#include <nssb64.h> // NSSBase64_EncodeItem()
#include <secder.h> // DER_Encode()
#include <cryptohi.h> // SEC_DerSignData()
#include <keyhi.h> // SECKEY_CreateSubjectPublicKeyInfo()
#undef Lock
#include "base/logging.h"
#include "base/scoped_ptr.h"
#include "base/nss_init.h"
namespace net {
CertDatabase::CertDatabase() {
Init();
}
bool CertDatabase::AddUserCert(const char* data, int len) {
CERTCertificate* cert = NULL;
PK11SlotInfo* slot = NULL;
std::string nickname;
bool is_success = true;
// Make a copy of "data" since CERT_DecodeCertPackage
// might modify it.
char* data_copy = new char[len];
memcpy(data_copy, data, len);
// Parse into a certificate structure.
cert = CERT_DecodeCertFromPackage(data_copy, len);
delete [] data_copy;
if (!cert) {
LOG(ERROR) << "Couldn't create a temporary certificate";
return false;
}
// Check if the private key corresponding to the certificate exist
// We shouldn't accept any random client certificate sent by a CA.
// Note: The NSS source documentation wrongly suggests that this
// also imports the certificate if the private key exists. This
// doesn't seem to be the case.
slot = PK11_KeyForCertExists(cert, NULL, NULL);
if (!slot) {
LOG(ERROR) << "No corresponding private key in store";
CERT_DestroyCertificate(cert);
return false;
}
PK11_FreeSlot(slot);
slot = NULL;
// TODO(gauravsh): We also need to make sure another certificate
// doesn't already exist for the same private key.
// Create a nickname for this certificate.
// We use the scheme used by Firefox:
// --> <subject's common name>'s <issuer's common name> ID.
//
std::string username, ca_name;
char* temp_username = CERT_GetCommonName(&cert->subject);
char* temp_ca_name = CERT_GetCommonName(&cert->issuer);
if (temp_username) {
username = temp_username;
PORT_Free(temp_username);
}
if (temp_ca_name) {
ca_name = temp_ca_name;
PORT_Free(temp_ca_name);
}
nickname = username + "'s " + ca_name + " ID";
slot = PK11_ImportCertForKey(cert,
const_cast<char*>(nickname.c_str()),
NULL);
if (slot) {
PK11_FreeSlot(slot);
} else {
LOG(ERROR) << "Couldn't import user certificate.";
is_success = false;
}
CERT_DestroyCertificate(cert);
return is_success;
}
void CertDatabase::Init() {
base::EnsureNSSInit();
}
} // namespace net
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