1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#include <config_gpgme.h>

#include "CertificateImpl.hxx"

#include <comphelper/servicehelper.hxx>
#include <comphelper/sequence.hxx>
#include <cppuhelper/supportsservice.hxx>

#include <com/sun/star/security/KeyUsage.hpp>
#include <officecfg/Office/Common.hxx>
#include <svl/sigstruct.hxx>

#include <gpgme.h>
#include <context.h>
#include <data.h>

using namespace css;
using namespace css::uno;
using namespace css::security;
using namespace css::util;

CertificateImpl::CertificateImpl() :
    m_pKey()
{
}

CertificateImpl::~CertificateImpl()
{
}

//Methods from XCertificateImpl
sal_Int16 SAL_CALL CertificateImpl::getVersion()
{
    return 0;
}

Sequence< sal_Int8 > SAL_CALL CertificateImpl::getSerialNumber()
{
    // TODO: perhaps map to subkey's cardSerialNumber - if you have
    // one to test
    return Sequence< sal_Int8 >();
}

OUString SAL_CALL CertificateImpl::getIssuerName()
{
    const GpgME::UserID userId = m_pKey.userID(0);
    if (userId.isNull())
        return OUString();

    return OStringToOUString(userId.id(), RTL_TEXTENCODING_UTF8);
}

OUString SAL_CALL CertificateImpl::getSubjectName()
{
    // Empty for gpg
    return OUString();
}

namespace {
    DateTime convertUnixTimeToDateTime(time_t time)
    {
        DateTime dateTime;
        struct tm *timeStruct = gmtime(&time);
        dateTime.Year = timeStruct->tm_year + 1900;
        dateTime.Month = timeStruct->tm_mon + 1;
        dateTime.Day = timeStruct->tm_mday;
        dateTime.Hours = timeStruct->tm_hour;
        dateTime.Minutes = timeStruct->tm_min;
        dateTime.Seconds = timeStruct->tm_sec;
        return dateTime;
    }
}

DateTime SAL_CALL CertificateImpl::getNotValidBefore()
{
    const GpgME::Subkey subkey = m_pKey.subkey(0);
    if (subkey.isNull())
        return DateTime();

    return convertUnixTimeToDateTime(m_pKey.subkey(0).creationTime());
}

DateTime SAL_CALL CertificateImpl::getNotValidAfter()
{
    const GpgME::Subkey subkey = m_pKey.subkey(0);
    if (subkey.isNull() || subkey.neverExpires())
        return DateTime();

    return convertUnixTimeToDateTime(m_pKey.subkey(0).expirationTime());
}

Sequence< sal_Int8 > SAL_CALL CertificateImpl::getIssuerUniqueID()<--- The function 'getIssuerUniqueID' is never used.
{
    // Empty for gpg
    return Sequence< sal_Int8 > ();
}

Sequence< sal_Int8 > SAL_CALL CertificateImpl::getSubjectUniqueID()<--- The function 'getSubjectUniqueID' is never used.
{
    // Empty for gpg
    return Sequence< sal_Int8 > ();
}

Sequence< Reference< XCertificateExtension > > SAL_CALL CertificateImpl::getExtensions()
{
    // Empty for gpg
    return Sequence< Reference< XCertificateExtension > > ();
}

Reference< XCertificateExtension > SAL_CALL CertificateImpl::findCertificateExtension( const Sequence< sal_Int8 >& /*oid*/ )
{
    // Empty for gpg
    return Reference< XCertificateExtension > ();
}

Sequence< sal_Int8 > SAL_CALL CertificateImpl::getEncoded()
{
    // Export key to base64Empty for gpg
    return m_aBits;
}

OUString SAL_CALL CertificateImpl::getSubjectPublicKeyAlgorithm()
{
    const GpgME::Subkey subkey = m_pKey.subkey(0);
    if (subkey.isNull())
        return OUString();

    return OStringToOUString(subkey.publicKeyAlgorithmAsString(), RTL_TEXTENCODING_UTF8);
}

Sequence< sal_Int8 > SAL_CALL CertificateImpl::getSubjectPublicKeyValue()
{
    return Sequence< sal_Int8 > ();
}

OUString SAL_CALL CertificateImpl::getSignatureAlgorithm()
{
    const GpgME::UserID userId = m_pKey.userID(0);
    if (userId.isNull())
        return OUString();

    const GpgME::UserID::Signature signature = userId.signature(0);
    if (signature.isNull())
        return OUString();

    return OStringToOUString(signature.algorithmAsString(), RTL_TEXTENCODING_UTF8);
}

Sequence< sal_Int8 > SAL_CALL CertificateImpl::getSHA1Thumbprint()
{
    // This is mapped to the fingerprint for gpg
    const char* keyId = m_pKey.primaryFingerprint();
    return comphelper::arrayToSequence<sal_Int8>(
        keyId, strlen(keyId)+1);
}

Sequence<sal_Int8> CertificateImpl::getSHA256Thumbprint()
{
    // This is mapped to the fingerprint for gpg (though that's only
    // SHA1 actually)
    const char* keyId = m_pKey.primaryFingerprint();
    return comphelper::arrayToSequence<sal_Int8>(
        keyId, strlen(keyId)+1);
}

svl::crypto::SignatureMethodAlgorithm CertificateImpl::getSignatureMethodAlgorithm()
{
    return svl::crypto::SignatureMethodAlgorithm::RSA;
}

Sequence< sal_Int8 > SAL_CALL CertificateImpl::getMD5Thumbprint()
{
    // This is mapped to the shorter keyID for gpg
    const char* keyId = m_pKey.keyID();
    return comphelper::arrayToSequence<sal_Int8>(
        keyId, strlen(keyId)+1);
}

CertificateKind SAL_CALL CertificateImpl::getCertificateKind()
{
    return CertificateKind_OPENPGP;
}

sal_Int32 SAL_CALL CertificateImpl::getCertificateUsage()
{
    return KeyUsage::DIGITAL_SIGNATURE | KeyUsage::NON_REPUDIATION  | KeyUsage::KEY_ENCIPHERMENT | KeyUsage::DATA_ENCIPHERMENT;
}

/* XUnoTunnel */
sal_Int64 SAL_CALL CertificateImpl::getSomething(const Sequence< sal_Int8 >& aIdentifier)
{
    if( aIdentifier.getLength() == 16 && 0 == memcmp( getUnoTunnelId().getConstArray(), aIdentifier.getConstArray(), 16 ) ) {
        return sal::static_int_cast<sal_Int64>(reinterpret_cast<sal_uIntPtr>(this));
    }
    return 0 ;
}

/* XUnoTunnel extension */

namespace
{
    class CertificateImplUnoTunnelId : public rtl::Static< UnoTunnelIdInit, CertificateImplUnoTunnelId > {};
}

const Sequence< sal_Int8>& CertificateImpl::getUnoTunnelId() {
    return CertificateImplUnoTunnelId::get().getSeq();
}

void CertificateImpl::setCertificate(GpgME::Context* ctx, const GpgME::Key& key)
{
    m_pKey = key;

    // extract key data, store into m_aBits
    GpgME::Data data_out;
    ctx->setArmor(false); // caller will base64-encode anyway
    GpgME::Error err = ctx->exportPublicKeys(
        key.primaryFingerprint(),
        data_out
#if GPGME_CAN_EXPORT_MINIMAL_KEY
        , officecfg::Office::Common::Security::OpenPGP::MinimalKeyExport::get()
#endif
    );

    if (err)
        throw RuntimeException("The GpgME library failed to retrieve the public key");

    off_t result = data_out.seek(0,SEEK_SET);
    (void) result;
    assert(result == 0);
    int len=0, curr=0; char buf;
    while( (curr=data_out.read(&buf, 1)) )
        len += curr;

    // write bits to sequence of bytes
    m_aBits.realloc(len);
    result = data_out.seek(0,SEEK_SET);
    assert(result == 0);
    if( data_out.read(m_aBits.getArray(), len) != len )
        throw RuntimeException("The GpgME library failed to read the key");
}

const GpgME::Key* CertificateImpl::getCertificate() const
{
    return &m_pKey;
}

/* XServiceInfo */
OUString SAL_CALL CertificateImpl::getImplementationName()
{
    return OUString("com.sun.star.xml.security.gpg.XCertificate_GpgImpl");
}

/* XServiceInfo */
sal_Bool SAL_CALL CertificateImpl::supportsService(const OUString& serviceName)
{
    return cppu::supportsService(this, serviceName);
}

/* XServiceInfo */
Sequence<OUString> SAL_CALL CertificateImpl::getSupportedServiceNames() { return { OUString() }; }

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */