/*
- Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
This file is part of libdcp.
files in the program, then also delete it here.
*/
+
/** @file src/certificate.cc
- * @brief Certificate class.
+ * @brief Certificate class
*/
+
#include "certificate.h"
#include "compose.hpp"
#include "exceptions.h"
#include <iostream>
#include <algorithm>
+
using std::list;
using std::string;
using std::ostream;
using std::min;
using namespace dcp;
+
static string const begin_certificate = "-----BEGIN CERTIFICATE-----";
static string const end_certificate = "-----END CERTIFICATE-----";
-/** @param c X509 certificate, which this object will take ownership of */
+
Certificate::Certificate (X509* c)
: _certificate (c)
- , _public_key (0)
{
}
-/** Load an X509 certificate from a string.
- * @param cert String to read from.
- */
+
Certificate::Certificate (string cert)
- : _certificate (0)
- , _public_key (0)
{
- string const s = read_string (cert);
- if (!s.empty ()) {
+ auto const s = read_string (cert);
+ if (!s.empty()) {
throw MiscError ("unexpected data after certificate");
}
}
-/** Copy constructor.
- * @param other Certificate to copy.
- */
+
Certificate::Certificate (Certificate const & other)
- : _certificate (0)
- , _public_key (0)
{
if (other._certificate) {
read_string (other.certificate (true));
}
}
-/** Read a certificate from a string.
- * @param cert String to read.
- * @return remaining part of the input string after the certificate which was read.
- */
+
string
Certificate::read_string (string cert)
{
lines.push_back (line);
}
- list<string>::iterator i = lines.begin ();
+ auto i = lines.begin ();
/* BEGIN */
while (i != lines.end() && *i != begin_certificate) {
fixed += end_certificate;
- BIO* bio = BIO_new_mem_buf (const_cast<char *> (fixed.c_str ()), -1);
+ auto bio = BIO_new_mem_buf (const_cast<char *> (fixed.c_str ()), -1);
if (!bio) {
throw MiscError ("could not create memory BIO");
}
return extra;
}
-/** Destructor */
+
Certificate::~Certificate ()
{
X509_free (_certificate);
RSA_free (_public_key);
}
-/** operator= for Certificate.
- * @param other Certificate to read from.
- */
+
Certificate &
Certificate::operator= (Certificate const & other)
{
RSA_free (_public_key);
_public_key = 0;
- read_string (other.certificate (true));
+ read_string (other.certificate(true));
return *this;
}
-/** Return the certificate as a string.
- * @param with_begin_end true to include the -----BEGIN CERTIFICATE--- / -----END CERTIFICATE----- markers.
- * @return Certificate string.
- */
+
string
Certificate::certificate (bool with_begin_end) const
{
DCP_ASSERT (_certificate);
- BIO* bio = BIO_new (BIO_s_mem ());
+ auto bio = BIO_new (BIO_s_mem());
if (!bio) {
throw MiscError ("could not create memory BIO");
}
return s;
}
-/** @return Certificate's issuer, in the form
- * dnqualifier=<dnQualififer>,CN=<commonName>,OU=<organizationalUnitName>,O=<organizationName>
- * and with + signs escaped to \+
- */
+
string
Certificate::issuer () const
{
DCP_ASSERT (_certificate);
- return name_for_xml (X509_get_issuer_name (_certificate));
+ return name_for_xml (X509_get_issuer_name(_certificate));
}
+
string
Certificate::asn_to_utf8 (ASN1_STRING* s)
{
return u;
}
+
string
Certificate::get_name_part (X509_NAME* n, int nid)
{
if (p == -1) {
return "";
}
- return asn_to_utf8 (X509_NAME_ENTRY_get_data (X509_NAME_get_entry (n, p)));
+ return asn_to_utf8 (X509_NAME_ENTRY_get_data(X509_NAME_get_entry(n, p)));
}
+
string
Certificate::name_for_xml (X509_NAME* name)
{
assert (name);
- BIO* bio = BIO_new (BIO_s_mem ());
+ auto bio = BIO_new (BIO_s_mem ());
if (!bio) {
throw MiscError ("could not create memory BIO");
}
{
DCP_ASSERT (_certificate);
- return name_for_xml (X509_get_subject_name (_certificate));
+ return name_for_xml (X509_get_subject_name(_certificate));
}
+
string
Certificate::subject_common_name () const
{
DCP_ASSERT (_certificate);
- return get_name_part (X509_get_subject_name (_certificate), NID_commonName);
+ return get_name_part (X509_get_subject_name(_certificate), NID_commonName);
}
+
string
Certificate::subject_organization_name () const
{
DCP_ASSERT (_certificate);
- return get_name_part (X509_get_subject_name (_certificate), NID_organizationName);
+ return get_name_part (X509_get_subject_name(_certificate), NID_organizationName);
}
+
string
Certificate::subject_organizational_unit_name () const
{
DCP_ASSERT (_certificate);
- return get_name_part (X509_get_subject_name (_certificate), NID_organizationalUnitName);
+ return get_name_part (X509_get_subject_name(_certificate), NID_organizationalUnitName);
}
+
static
struct tm
convert_time (ASN1_TIME const * time)
t.tm_year -= 1900;
}
+ t.tm_mon--;
+
return t;
}
+
struct tm
Certificate::not_before () const
{
DCP_ASSERT (_certificate);
+#if OPENSSL_VERSION_NUMBER > 0x10100000L
return convert_time(X509_get0_notBefore(_certificate));
+#else
+ return convert_time(X509_get_notBefore(_certificate));
+#endif
}
+
struct tm
Certificate::not_after () const
{
DCP_ASSERT (_certificate);
+#if OPENSSL_VERSION_NUMBER > 0x10100000L
return convert_time(X509_get0_notAfter(_certificate));
+#else
+ return convert_time(X509_get_notAfter(_certificate));
+#endif
}
+
string
Certificate::serial () const
{
DCP_ASSERT (_certificate);
- ASN1_INTEGER* s = X509_get_serialNumber (_certificate);
+ auto s = X509_get_serialNumber (_certificate);
DCP_ASSERT (s);
- BIGNUM* b = ASN1_INTEGER_to_BN (s, 0);
+ auto b = ASN1_INTEGER_to_BN (s, 0);
char* c = BN_bn2dec (b);
BN_free (b);
return st;
}
-/** @return thumbprint of the to-be-signed portion of this certificate */
+
string
Certificate::thumbprint () const
{
return Kumu::base64encode (digest, 20, digest_base64, 64);
}
-/** @return RSA public key from this Certificate. Caller must not free the returned value. */
+
RSA *
Certificate::public_key () const
{
return _public_key;
}
- EVP_PKEY* key = X509_get_pubkey (_certificate);
+ auto key = X509_get_pubkey (_certificate);
if (!key) {
throw MiscError ("could not get public key from certificate");
}
return _public_key;
}
+
static bool string_is_utf8 (X509_NAME* n, int nid)
{
int p = -1;
return p != -1 && X509_NAME_ENTRY_get_data(X509_NAME_get_entry(n, p))->type == V_ASN1_UTF8STRING;
}
+
bool
Certificate::has_utf8_strings () const
{
- X509_NAME* n = X509_get_subject_name (_certificate);
+ auto n = X509_get_subject_name (_certificate);
return string_is_utf8(n, NID_commonName) ||
string_is_utf8(n, NID_organizationName) ||
string_is_utf8(n, NID_organizationalUnitName);
}
+
bool
dcp::operator== (Certificate const & a, Certificate const & b)
{
return a.certificate() == b.certificate();
}
+
bool
dcp::operator< (Certificate const & a, Certificate const & b)
{
return a.certificate() < b.certificate();
}
+
ostream&
dcp::operator<< (ostream& s, Certificate const & c)
{
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