/* * Copyright (c) 2010 Remko Tronçon * Licensed under the GNU General Public License v3. * See Documentation/Licenses/GPLv3.txt for more information. */ #include <Swiften/TLS/OpenSSL/OpenSSLCertificate.h> #include <Swiften/Base/ByteArray.h> #include <Swiften/Base/Log.h> #undef X509_NAME // Windows.h defines this, and for some reason, it doesn't get undeffed properly in x509.h #include <openssl/x509v3.h> #pragma GCC diagnostic ignored "-Wold-style-cast" namespace Swift { OpenSSLCertificate::OpenSSLCertificate(boost::shared_ptr<X509> cert) : cert(cert) { parse(); } OpenSSLCertificate::OpenSSLCertificate(const ByteArray& der) { #if OPENSSL_VERSION_NUMBER <= 0x009070cfL unsigned char* p = const_cast<unsigned char*>(der.getData()); #else const unsigned char* p = der.getData(); #endif cert = boost::shared_ptr<X509>(d2i_X509(NULL, &p, der.getSize()), X509_free); if (!cert) { SWIFT_LOG(warning) << "Error creating certificate from DER data" << std::endl; } parse(); } ByteArray OpenSSLCertificate::toDER() const { if (!cert) { return ByteArray(); } ByteArray result; result.resize(i2d_X509(cert.get(), NULL)); unsigned char* p = reinterpret_cast<unsigned char*>(result.getData()); i2d_X509(cert.get(), &p); return result; } void OpenSSLCertificate::parse() { if (!cert) { return; } // Subject name X509_NAME* subjectName = X509_get_subject_name(cert.get()); if (subjectName) { // Subject name ByteArray subjectNameData; subjectNameData.resize(256); X509_NAME_oneline(X509_get_subject_name(cert.get()), reinterpret_cast<char*>(subjectNameData.getData()), subjectNameData.getSize()); this->subjectName = std::string(reinterpret_cast<const char*>(subjectNameData.getData())); // Common name int cnLoc = X509_NAME_get_index_by_NID(subjectName, NID_commonName, -1); while (cnLoc != -1) { X509_NAME_ENTRY* cnEntry = X509_NAME_get_entry(subjectName, cnLoc); ASN1_STRING* cnData = X509_NAME_ENTRY_get_data(cnEntry); commonNames.push_back(ByteArray(cnData->data, cnData->length).toString()); cnLoc = X509_NAME_get_index_by_NID(subjectName, NID_commonName, cnLoc); } } // subjectAltNames int subjectAltNameLoc = X509_get_ext_by_NID(cert.get(), NID_subject_alt_name, -1); if(subjectAltNameLoc != -1) { X509_EXTENSION* extension = X509_get_ext(cert.get(), subjectAltNameLoc); boost::shared_ptr<GENERAL_NAMES> generalNames(reinterpret_cast<GENERAL_NAMES*>(X509V3_EXT_d2i(extension)), GENERAL_NAMES_free); boost::shared_ptr<ASN1_OBJECT> xmppAddrObject(OBJ_txt2obj(ID_ON_XMPPADDR_OID, 1), ASN1_OBJECT_free); boost::shared_ptr<ASN1_OBJECT> dnsSRVObject(OBJ_txt2obj(ID_ON_DNSSRV_OID, 1), ASN1_OBJECT_free); for (int i = 0; i < sk_GENERAL_NAME_num(generalNames.get()); ++i) { GENERAL_NAME* generalName = sk_GENERAL_NAME_value(generalNames.get(), i); if (generalName->type == GEN_OTHERNAME) { OTHERNAME* otherName = generalName->d.otherName; if (OBJ_cmp(otherName->type_id, xmppAddrObject.get()) == 0) { // XmppAddr if (otherName->value->type != V_ASN1_UTF8STRING) { continue; } ASN1_UTF8STRING* xmppAddrValue = otherName->value->value.utf8string; addXMPPAddress(ByteArray(ASN1_STRING_data(xmppAddrValue), ASN1_STRING_length(xmppAddrValue)).toString()); } else if (OBJ_cmp(otherName->type_id, dnsSRVObject.get()) == 0) { // SRVName if (otherName->value->type != V_ASN1_IA5STRING) { continue; } ASN1_IA5STRING* srvNameValue = otherName->value->value.ia5string; addSRVName(ByteArray(ASN1_STRING_data(srvNameValue), ASN1_STRING_length(srvNameValue)).toString()); } } else if (generalName->type == GEN_DNS) { // DNSName addDNSName(ByteArray(ASN1_STRING_data(generalName->d.dNSName), ASN1_STRING_length(generalName->d.dNSName)).toString()); } } } } }