Libkleo

formatting.cpp
1/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; -*-
2 utils/formatting.cpp
3
4 This file is part of Kleopatra, the KDE keymanager
5 SPDX-FileCopyrightText: 2007 Klarälvdalens Datakonsult AB
6 SPDX-FileCopyrightText: 2021, 2022 g10 Code GmbH
7 SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
8
9 SPDX-License-Identifier: GPL-2.0-or-later
10*/
11
12#include <config-libkleo.h>
13
14#include "formatting.h"
15
16#include "algorithm.h"
17#include "compat.h"
18#include "compliance.h"
19#include "cryptoconfig.h"
20#include "gnupg.h"
21#include "keyhelpers.h"
22
23#include <libkleo/dn.h>
24#include <libkleo/keycache.h>
25#include <libkleo/keygroup.h>
26
27#include <libkleo_debug.h>
28
29#include <KEmailAddress>
30#include <KLocalizedString>
31
32#include <QGpgME/CryptoConfig>
33#include <QGpgME/Protocol>
34
35#include <QDateTime>
36#include <QIcon>
37#include <QLocale>
38#include <QRegularExpression>
39#include <QString>
40
41#include <gpgme++/importresult.h>
42#include <gpgme++/key.h>
43
44#include <gpg-error.h>
45
46using namespace GpgME;
47using namespace Kleo;
48
49using namespace Qt::Literals::StringLiterals;
50
51namespace
52{
53QIcon iconForValidityAndCompliance(UserID::Validity validity, bool isCompliant)
54{
55 switch (validity) {
56 case UserID::Ultimate:
57 case UserID::Full:
58 case UserID::Marginal:
59 return isCompliant ? Formatting::successIcon() : Formatting::infoIcon();
60 case UserID::Never:
61 return Formatting::errorIcon();
62 case UserID::Undefined:
63 case UserID::Unknown:
64 default:
65 return Formatting::infoIcon();
66 }
67}
68QIcon iconForValidity(const UserID &userId)
69{
70 const bool keyIsCompliant = !DeVSCompliance::isActive() || //
71 (DeVSCompliance::isCompliant() && DeVSCompliance::keyIsCompliant(userId.parent()));
72 return iconForValidityAndCompliance(userId.validity(), keyIsCompliant);
73}
74}
75
76QIcon Formatting::IconProvider::icon(const GpgME::Key &key) const
77{
78 return icon(key.userID(0));
79}
80
81QIcon Formatting::IconProvider::icon(const GpgME::UserID &userID) const
82{
83 if (usage.canEncrypt() && !Kleo::canBeUsedForEncryption(userID.parent())) {
84 return Formatting::errorIcon();
85 }
86 if (usage.canSign() && !Kleo::canBeUsedForSigning(userID.parent())) {
87 return Formatting::errorIcon();
88 }
89 if (userID.parent().isBad() || userID.isBad()) {
90 return Formatting::errorIcon();
91 }
92 if (Kleo::isRevokedOrExpired(userID)) {
93 return Formatting::errorIcon();
94 }
95 return iconForValidity(userID);
96}
97
98QIcon Formatting::IconProvider::icon(const KeyGroup &group) const
99{
100 if (usage.canEncrypt() && !Kleo::all_of(group.keys(), Kleo::canBeUsedForEncryption)) {
101 return Formatting::errorIcon();
102 }
103 if (usage.canSign() && !Kleo::all_of(group.keys(), Kleo::canBeUsedForSigning)) {
104 return Formatting::errorIcon();
105 }
106 return validityIcon(group);
107}
108
109QIcon Formatting::successIcon()
110{
111 return QIcon::fromTheme(QStringLiteral("emblem-success"));
112}
113
114QIcon Formatting::infoIcon()
115{
116 return QIcon::fromTheme(QStringLiteral("emblem-information"));
117}
118
119QIcon Formatting::questionIcon()
120{
121 return QIcon::fromTheme(QStringLiteral("emblem-question"));
122}
123
124QIcon Formatting::unavailableIcon()
125{
126 return QIcon::fromTheme(QStringLiteral("emblem-unavailable"));
127}
128
129QIcon Formatting::warningIcon()
130{
131 return QIcon::fromTheme(QStringLiteral("emblem-warning"));
132}
133
134QIcon Formatting::errorIcon()
135{
136 return QIcon::fromTheme(QStringLiteral("emblem-error"));
137}
138
139//
140// Name
141//
142
143QString Formatting::prettyName(int proto, const char *id, const char *name_, const char *comment_)
144{
145 if (proto == GpgME::OpenPGP) {
146 const QString name = QString::fromUtf8(name_);
147 if (name.isEmpty()) {
148 return QString();
149 }
150 const QString comment = QString::fromUtf8(comment_);
151 if (comment.isEmpty()) {
152 return name;
153 }
154 return QStringLiteral("%1 (%2)").arg(name, comment);
155 }
156
157 if (proto == GpgME::CMS) {
158 const DN subject(id);
159 const QString cn = subject[QStringLiteral("CN")].trimmed();
160 if (cn.isEmpty()) {
161 return subject.prettyDN();
162 }
163 return cn;
164 }
165
166 return QString();
167}
168
169QString Formatting::prettyNameAndEMail(int proto, const char *id, const char *name_, const char *email_, const char *comment_)
170{
171 return prettyNameAndEMail(proto, QString::fromUtf8(id), QString::fromUtf8(name_), prettyEMail(email_, id), QString::fromUtf8(comment_));
172}
173
174QString Formatting::prettyNameAndEMail(int proto, const QString &id, const QString &name, const QString &email, const QString &comment)
175{
176 if (proto == GpgME::OpenPGP) {
177 if (name.isEmpty()) {
178 if (email.isEmpty()) {
179 return QString();
180 } else if (comment.isEmpty()) {
181 return QStringLiteral("<%1>").arg(email);
182 } else {
183 return QStringLiteral("(%2) <%1>").arg(email, comment);
184 }
185 }
186 if (email.isEmpty()) {
187 if (comment.isEmpty()) {
188 return name;
189 } else {
190 return QStringLiteral("%1 (%2)").arg(name, comment);
191 }
192 }
193 if (comment.isEmpty()) {
194 return QStringLiteral("%1 <%2>").arg(name, email);
195 } else {
196 return QStringLiteral("%1 (%3) <%2>").arg(name, email, comment);
197 }
198 }
199
200 if (proto == GpgME::CMS) {
201 const DN subject(id);
202 const QString cn = subject[QStringLiteral("CN")].trimmed();
203 if (cn.isEmpty()) {
204 return subject.prettyDN();
205 }
206 return cn;
207 }
208 return QString();
209}
210
211QString Formatting::prettyUserID(const UserID &uid)
212{
213 if (uid.parent().protocol() == GpgME::OpenPGP) {
214 return prettyNameAndEMail(uid);
215 }
216 const QByteArray id = QByteArray(uid.id()).trimmed();
217 if (id.startsWith('<')) {
218 return prettyEMail(uid.email(), uid.id());
219 }
220 if (id.startsWith('(')) {
221 // ### parse uri/dns:
222 return QString::fromUtf8(uid.id());
223 } else {
224 return DN(uid.id()).prettyDN();
225 }
226}
227
228QString Formatting::prettyKeyID(const char *id)
229{
230 if (!id) {
231 return QString();
232 }
233 return QLatin1StringView("0x") + QString::fromLatin1(id).toUpper();
234}
235
236QString Formatting::prettyNameAndEMail(const UserID &uid)
237{
238 return prettyNameAndEMail(uid.parent().protocol(), uid.id(), uid.name(), uid.email(), uid.comment());
239}
240
241QString Formatting::prettyNameAndEMail(const Key &key)
242{
243 return prettyNameAndEMail(key.userID(0));
244}
245
246QString Formatting::prettyName(const Key &key)
247{
248 return prettyName(key.userID(0));
249}
250
251QString Formatting::prettyName(const UserID &uid)
252{
253 return prettyName(uid.parent().protocol(), uid.id(), uid.name(), uid.comment());
254}
255
256QString Formatting::prettyName(const UserID::Signature &sig)
257{
258 return prettyName(GpgME::OpenPGP, sig.signerUserID(), sig.signerName(), sig.signerComment());
259}
260
261//
262// EMail
263//
264
265QString Formatting::prettyEMail(const Key &key)
266{
267 for (unsigned int i = 0, end = key.numUserIDs(); i < end; ++i) {
268 const QString email = prettyEMail(key.userID(i));
269 if (!email.isEmpty()) {
270 return email;
271 }
272 }
273 return QString();
274}
275
276QString Formatting::prettyEMail(const UserID &uid)
277{
278 return prettyEMail(uid.email(), uid.id());
279}
280
281QString Formatting::prettyEMail(const UserID::Signature &sig)
282{
283 return prettyEMail(sig.signerEmail(), sig.signerUserID());
284}
285
286QString Formatting::prettyEMail(const char *email_, const char *id)
287{
288 QString email;
289 QString name;
290 QString comment;
291 if (email_ && KEmailAddress::splitAddress(QString::fromUtf8(email_), name, email, comment) == KEmailAddress::AddressOk) {
292 return email;
293 } else {
294 return DN(id)[QStringLiteral("EMAIL")].trimmed();
295 }
296}
297
298//
299// Tooltip
300//
301
302namespace
303{
304
305static QString protect_whitespace(QString s)
306{
307 static const QLatin1Char SP(' ');
308 static const QLatin1Char NBSP('\xA0');
309 return s.replace(SP, NBSP);
310}
311
312template<typename T_arg>
313QString format_row(const QString &field, const T_arg &arg)
314{
315 return QStringLiteral("<tr><th>%1:</th><td>%2</td></tr>").arg(protect_whitespace(field), arg);
316}
317QString format_row(const QString &field, const QString &arg)
318{
319 return QStringLiteral("<tr><th>%1:</th><td>%2</td></tr>").arg(protect_whitespace(field), arg.toHtmlEscaped());
320}
321QString format_row(const QString &field, const char *arg)
322{
323 return format_row(field, QString::fromUtf8(arg));
324}
325
326QString format_keytype(const Key &key)
327{
328 const Subkey subkey = key.subkey(0);
329 if (key.hasSecret()) {
330 return i18n("%1-bit %2 (secret key available)", subkey.length(), QLatin1StringView(subkey.publicKeyAlgorithmAsString()));
331 } else {
332 return i18n("%1-bit %2", subkey.length(), QLatin1StringView(subkey.publicKeyAlgorithmAsString()));
333 }
334}
335
336QString format_subkeytype(const Subkey &subkey)
337{
338 const auto algo = subkey.publicKeyAlgorithm();
339
340 if (algo == Subkey::AlgoECC || algo == Subkey::AlgoECDSA || algo == Subkey::AlgoECDH || algo == Subkey::AlgoEDDSA) {
341 return QString::fromStdString(subkey.algoName());
342 }
343 return i18n("%1-bit %2", subkey.length(), QLatin1StringView(subkey.publicKeyAlgorithmAsString()));
344}
345
346QString format_keyusage(const Key &key)
347{
348 QStringList capabilities;
349 if (Kleo::keyHasSign(key)) {
350 if (key.isQualified()) {
351 capabilities.push_back(i18n("Signing (Qualified)"));
352 } else {
353 capabilities.push_back(i18n("Signing"));
354 }
355 }
356 if (Kleo::keyHasEncrypt(key)) {
357 capabilities.push_back(i18n("Encryption"));
358 }
359 if (Kleo::keyHasCertify(key)) {
360 capabilities.push_back(i18n("Certifying User IDs"));
361 }
362 if (Kleo::keyHasAuthenticate(key)) {
363 capabilities.push_back(i18n("SSH Authentication"));
364 }
365 return capabilities.join(QLatin1StringView(", "));
366}
367
368QString format_subkeyusage(const Subkey &subkey)
369{
370 QStringList capabilities;
371 if (subkey.canSign()) {
372 if (subkey.isQualified()) {
373 capabilities.push_back(i18n("Signing (Qualified)"));
374 } else {
375 capabilities.push_back(i18n("Signing"));
376 }
377 }
378 if (subkey.canEncrypt()) {
379 capabilities.push_back(i18n("Encryption"));
380 }
381 if (subkey.canCertify()) {
382 capabilities.push_back(i18n("Certifying User IDs"));
383 }
384 if (subkey.canAuthenticate()) {
385 capabilities.push_back(i18n("SSH Authentication"));
386 }
387 return capabilities.join(QLatin1StringView(", "));
388}
389
390static QString time_t2string(time_t t)
391{
392 const QDateTime dt = QDateTime::fromSecsSinceEpoch(quint32(t));
393 return QLocale().toString(dt, QLocale::ShortFormat);
394}
395
396static QString make_red(const QString &txt)
397{
398 return QLatin1StringView("<font color=\"red\">") + txt.toHtmlEscaped() + QLatin1StringView("</font>");
399}
400
401}
402
403static QString toolTipInternal(const GpgME::Key &key, const GpgME::UserID &userID, int flags)
404{
405 if (flags == 0 || (key.protocol() != GpgME::CMS && key.protocol() != GpgME::OpenPGP)) {
406 return QString();
407 }
408
409 const Subkey subkey = key.subkey(0);
410
411 QString result;
412 if (flags & Formatting::Validity) {
413 if (key.protocol() == GpgME::OpenPGP || (key.keyListMode() & Validate)) {
414 if (key.isDisabled()) {
415 result = i18n("Disabled");
416 } else if (userID.isRevoked() || key.isRevoked()) {
417 result = make_red(i18n("Revoked"));
418 } else if (key.isExpired()) {
419 result = make_red(i18n("Expired"));
420 } else if (key.keyListMode() & GpgME::Validate) {
421 if (!userID.isNull()) {
422 if (userID.validity() >= UserID::Validity::Full) {
423 result = i18n("User ID is certified.");
424 const auto compliance = Formatting::complianceStringForUserID(userID);
425 if (!compliance.isEmpty()) {
426 result += QStringLiteral("<br>") + compliance;
427 }
428 } else {
429 result = i18n("User ID is not certified.");
430 }
431 } else {
432 unsigned int fullyTrusted = 0;
433 for (const auto &uid : key.userIDs()) {
434 if (uid.validity() >= UserID::Validity::Full) {
435 fullyTrusted++;
436 }
437 }
438 if (fullyTrusted == key.numUserIDs()) {
439 result = i18n("All User IDs are certified.");
440 const auto compliance = Formatting::complianceStringForKey(key);
441 if (!compliance.isEmpty()) {
442 result += QStringLiteral("<br>") + compliance;
443 }
444 } else {
445 result = i18np("One User ID is not certified.", "%1 User IDs are not certified.", key.numUserIDs() - fullyTrusted);
446 }
447 }
448 } else {
449 result = i18n("The validity cannot be checked at the moment.");
450 }
451 } else {
452 result = i18n("The validity cannot be checked at the moment.");
453 }
454 }
455 if (flags == Formatting::Validity) {
456 return result;
457 }
458
459 result += QLatin1StringView("<table border=\"0\">");
460 if (key.protocol() == GpgME::CMS) {
461 if (flags & Formatting::SerialNumber) {
462 result += format_row(i18n("Serial number"), key.issuerSerial());
463 }
464 if (flags & Formatting::Issuer) {
465 result += format_row(i18n("Issuer"), key.issuerName());
466 }
467 }
468 if (flags & Formatting::UserIDs) {
469 if (userID.isNull()) {
470 const std::vector<UserID> uids = key.userIDs();
471 if (!uids.empty()) {
472 result += format_row(key.protocol() == GpgME::CMS ? i18n("Subject") : i18n("User ID"), Formatting::prettyUserID(uids.front()));
473 }
474 if (uids.size() > 1) {
475 for (auto it = uids.begin() + 1, end = uids.end(); it != end; ++it) {
476 if (!it->isRevoked() && !it->isInvalid()) {
477 result += format_row(i18n("a.k.a."), Formatting::prettyUserID(*it));
478 }
479 }
480 }
481 } else {
482 result += format_row(key.protocol() == GpgME::CMS ? i18n("Subject") : i18n("User ID"), Formatting::prettyUserID(userID));
483 }
484 }
485 if (flags & Formatting::ExpiryDates) {
486 result += format_row(i18n("Valid from"), time_t2string(subkey.creationTime()));
487
488 if (!subkey.neverExpires()) {
489 result += format_row(i18n("Valid until"), time_t2string(subkey.expirationTime()));
490 }
491 }
492
493 if (flags & Formatting::CertificateType) {
494 result += format_row(i18n("Type"), format_keytype(key));
495 }
496 if (flags & Formatting::CertificateUsage) {
497 result += format_row(i18n("Usage"), format_keyusage(key));
498 }
499 if (flags & Formatting::KeyID) {
500 result += format_row(i18n("Key ID"), QString::fromLatin1(key.keyID()));
501 }
502 if (flags & Formatting::Fingerprint) {
503 result += format_row(i18n("Fingerprint"), key.primaryFingerprint());
504 }
505 if (flags & Formatting::OwnerTrust) {
506 if (key.protocol() == GpgME::OpenPGP) {
507 result += format_row(i18n("Certification trust"), Formatting::ownerTrustShort(key));
508 } else if (key.isRoot()) {
509 result += format_row(i18n("Trusted issuer?"), (userID.isNull() ? key.userID(0) : userID).validity() == UserID::Ultimate ? i18n("Yes") : i18n("No"));
510 }
511 }
512 if (flags & Formatting::StorageLocation) {
513 if (const char *card = subkey.cardSerialNumber()) {
514 result += format_row(i18n("Stored"), i18nc("stored...", "on SmartCard with serial no. %1", QString::fromUtf8(card)));
515 } else {
516 result += format_row(i18n("Stored"), i18nc("stored...", "on this computer"));
517 }
518 }
519 if (flags & Formatting::Subkeys) {
520 for (const auto &sub : key.subkeys()) {
521 result += QLatin1StringView("<hr/>");
522 result += format_row(i18n("Subkey"), sub.fingerprint());
523 if (sub.isRevoked()) {
524 result += format_row(i18n("Status"), i18n("Revoked"));
525 } else if (sub.isExpired()) {
526 result += format_row(i18n("Status"), i18n("Expired"));
527 }
528 if (flags & Formatting::ExpiryDates) {
529 result += format_row(i18n("Valid from"), time_t2string(sub.creationTime()));
530
531 if (!sub.neverExpires()) {
532 result += format_row(i18n("Valid until"), time_t2string(sub.expirationTime()));
533 }
534 }
535
536 if (flags & Formatting::CertificateType) {
537 result += format_row(i18n("Type"), format_subkeytype(sub));
538 }
539 if (flags & Formatting::CertificateUsage) {
540 result += format_row(i18n("Usage"), format_subkeyusage(sub));
541 }
542 if (flags & Formatting::StorageLocation) {
543 if (const char *card = sub.cardSerialNumber()) {
544 result += format_row(i18n("Stored"), i18nc("stored...", "on SmartCard with serial no. %1", QString::fromUtf8(card)));
545 } else {
546 result += format_row(i18n("Stored"), i18nc("stored...", "on this computer"));
547 }
548 }
549 }
550 }
551 result += QLatin1StringView("</table>");
552
553 return result;
554}
555
556QString Formatting::toolTip(const Key &key, int flags)
557{
558 return toolTipInternal(key, UserID(), flags);
559}
560
561namespace
562{
563template<typename Container>
564QString getValidityStatement(const Container &keys)
565{
566 const bool allKeysAreOpenPGP = std::all_of(keys.cbegin(), keys.cend(), [](const Key &key) {
567 return key.protocol() == GpgME::OpenPGP;
568 });
569 const bool allKeysAreValidated = std::all_of(keys.cbegin(), keys.cend(), [](const Key &key) {
570 return key.keyListMode() & Validate;
571 });
572 if (allKeysAreOpenPGP || allKeysAreValidated) {
573 const bool someKeysAreBad = std::any_of(keys.cbegin(), keys.cend(), std::mem_fn(&Key::isBad));
574 if (someKeysAreBad) {
575 return i18n("Some keys are revoked, expired, disabled, or invalid.");
576 } else {
577 const bool allKeysAreFullyValid = std::all_of(keys.cbegin(), keys.cend(), &Kleo::allUserIDsHaveFullValidity);
578 if (allKeysAreFullyValid) {
579 return i18n("All keys are certified.");
580 } else {
581 return i18n("Some keys are not certified.");
582 }
583 }
584 }
585 return i18n("The validity of the keys cannot be checked at the moment.");
586}
587}
588
589QString Formatting::toolTip(const KeyGroup &group, int flags)
590{
591 static const unsigned int maxNumKeysForTooltip = 20;
592
593 if (group.isNull()) {
594 return QString();
595 }
596
597 const KeyGroup::Keys &keys = group.keys();
598 if (keys.size() == 0) {
599 return i18nc("@info:tooltip", "This group does not contain any keys.");
600 }
601
602 if (Kleo::any_of(keys, [](const auto &key) {
603 return !key.hasEncrypt();
604 })) {
605 return i18nc("@info:tooltip", "Some of the certificates in this group cannot be used for encryption. Using this group can lead to unexpected results.");
606 }
607
608 const QString validity = (flags & Validity) ? getValidityStatement(keys) : QString();
609 if (flags == Validity) {
610 return validity;
611 }
612
613 // list either up to maxNumKeysForTooltip keys or (maxNumKeysForTooltip-1) keys followed by "and n more keys"
614 const unsigned int numKeysForTooltip = keys.size() > maxNumKeysForTooltip ? maxNumKeysForTooltip - 1 : keys.size();
615
616 QStringList result;
617 result.reserve(3 + 2 + numKeysForTooltip + 2);
618 if (!validity.isEmpty()) {
619 result.push_back(QStringLiteral("<p>"));
620 result.push_back(validity.toHtmlEscaped());
621 result.push_back(QStringLiteral("</p>"));
622 }
623
624 result.push_back(QStringLiteral("<p>"));
625 result.push_back(i18n("Keys:"));
626 {
627 auto it = keys.cbegin();
628 for (unsigned int i = 0; i < numKeysForTooltip; ++i, ++it) {
629 result.push_back(QLatin1StringView("<br>") + Formatting::summaryLine(*it).toHtmlEscaped());
630 }
631 }
632 if (keys.size() > numKeysForTooltip) {
633 result.push_back(QLatin1StringView("<br>")
634 + i18ncp("this follows a list of keys", "and 1 more key", "and %1 more keys", keys.size() - numKeysForTooltip));
635 }
636 result.push_back(QStringLiteral("</p>"));
637
638 return result.join(QLatin1Char('\n'));
639}
640
641QString Formatting::toolTip(const UserID &userID, int flags)
642{
643 return toolTipInternal(userID.parent(), userID, flags);
644}
645
646//
647// Creation and Expiration
648//
649
650namespace
651{
652static QDate time_t2date(time_t t)
653{
654 if (!t) {
655 return {};
656 }
657 const QDateTime dt = QDateTime::fromSecsSinceEpoch(quint32(t));
658 return dt.date();
659}
660static QString accessible_date_format()
661{
662 return i18nc(
663 "date format suitable for screen readers; "
664 "d: day as a number without a leading zero, "
665 "MMMM: localized month name, "
666 "yyyy: year as a four digit number",
667 "MMMM d, yyyy");
668}
669
670template<typename T>
671QString expiration_date_string(const T &tee, const QString &noExpiration)
672{
673 return tee.neverExpires() ? noExpiration : Formatting::dateString(time_t2date(tee.expirationTime()));
674}
675template<typename T>
676QDate creation_date(const T &tee)
677{
678 return time_t2date(tee.creationTime());
679}
680template<typename T>
681QDate expiration_date(const T &tee)
682{
683 return time_t2date(tee.expirationTime());
684}
685}
686
687QString Formatting::dateString(time_t t)
688{
689 return dateString(time_t2date(t));
690}
691
692QString Formatting::dateString(const QDate &date)
693{
694 return QLocale().toString(date, QLocale::ShortFormat);
695}
696
697QString Formatting::accessibleDate(time_t t)
698{
699 return accessibleDate(time_t2date(t));
700}
701
702QString Formatting::accessibleDate(const QDate &date)
703{
704 return QLocale().toString(date, accessible_date_format());
705}
706
707QString Formatting::expirationDateString(const Key &key, const QString &noExpiration)
708{
709 // if key is remote but has a non-zero expiration date (e.g. a key looked up via WKD),
710 // then we assume that the date is valid; if the date is zero for a remote key, then
711 // we don't know if it's unknown or unlimited
712 return isRemoteKey(key) && (key.subkey(0).expirationTime() == 0) //
713 ? i18nc("@info the expiration date of the key is unknown", "unknown")
714 : expiration_date_string(key.subkey(0), noExpiration);
715}
716
717QString Formatting::expirationDateString(const Subkey &subkey, const QString &noExpiration)
718{
719 return expiration_date_string(subkey, noExpiration);
720}
721
722QString Formatting::expirationDateString(const UserID::Signature &sig, const QString &noExpiration)
723{
724 return expiration_date_string(sig, noExpiration);
725}
726
727QDate Formatting::expirationDate(const Key &key)
728{
729 return expiration_date(key.subkey(0));
730}
731
732QDate Formatting::expirationDate(const Subkey &subkey)
733{
734 return expiration_date(subkey);
735}
736
737QDate Formatting::expirationDate(const UserID::Signature &sig)
738{
739 return expiration_date(sig);
740}
741
742QString Formatting::accessibleExpirationDate(const Key &key, const QString &noExpiration)
743{
744 // if key is remote but has a non-zero expiration date (e.g. a key looked up via WKD),
745 // then we assume that the date is valid; if the date is zero for a remote key, then
746 // we don't know if it's unknown or unlimited
747 return isRemoteKey(key) && (key.subkey(0).expirationTime() == 0) //
748 ? i18nc("@info the expiration date of the key is unknown", "unknown")
749 : accessibleExpirationDate(key.subkey(0), noExpiration);
750}
751
752QString Formatting::accessibleExpirationDate(const Subkey &subkey, const QString &noExpiration)
753{
754 if (subkey.neverExpires()) {
755 return noExpiration.isEmpty() ? i18n("unlimited") : noExpiration;
756 } else {
757 return accessibleDate(expirationDate(subkey));
758 }
759}
760
761QString Formatting::accessibleExpirationDate(const UserID::Signature &sig, const QString &noExpiration)
762{
763 if (sig.neverExpires()) {
764 return noExpiration.isEmpty() ? i18n("unlimited") : noExpiration;
765 } else {
766 return accessibleDate(expirationDate(sig));
767 }
768}
769
770QString Formatting::creationDateString(const Key &key)
771{
772 return dateString(creation_date(key.subkey(0)));
773}
774
775QString Formatting::creationDateString(const Subkey &subkey)
776{
777 return dateString(creation_date(subkey));
778}
779
780QString Formatting::creationDateString(const UserID::Signature &sig)
781{
782 return dateString(creation_date(sig));
783}
784
785QDate Formatting::creationDate(const Key &key)
786{
787 return creation_date(key.subkey(0));
788}
789
790QDate Formatting::creationDate(const Subkey &subkey)
791{
792 return creation_date(subkey);
793}
794
795QDate Formatting::creationDate(const UserID::Signature &sig)
796{
797 return creation_date(sig);
798}
799
800QString Formatting::accessibleCreationDate(const Key &key)
801{
802 return accessibleDate(creationDate(key));
803}
804
805QString Formatting::accessibleCreationDate(const Subkey &subkey)
806{
807 return accessibleDate(creationDate(subkey));
808}
809
810//
811// Types
812//
813
814QString Formatting::displayName(GpgME::Protocol p)
815{
816 if (p == GpgME::CMS) {
817 return i18nc("X.509/CMS encryption standard", "S/MIME");
818 }
819 if (p == GpgME::OpenPGP) {
820 return i18n("OpenPGP");
821 }
822 return i18nc("Unknown encryption protocol", "Unknown");
823}
824
825QString Formatting::type(const Key &key)
826{
827 return displayName(key.protocol());
828}
829
830QString Formatting::type(const Subkey &subkey)
831{
832 return QString::fromUtf8(subkey.publicKeyAlgorithmAsString());
833}
834
835QString Formatting::type(const KeyGroup &group)
836{
837 Q_UNUSED(group)
838 return i18nc("a group of keys/certificates", "Group");
839}
840
841//
842// Status / Validity
843//
844
845QString Formatting::ownerTrustShort(const Key &key)
846{
847 return ownerTrustShort(key.ownerTrust());
848}
849
850QString Formatting::ownerTrustShort(Key::OwnerTrust trust)
851{
852 switch (trust) {
853 case Key::Unknown:
854 return i18nc("unknown trust level", "unknown");
855 case Key::Never:
856 return i18n("untrusted");
857 case Key::Marginal:
858 return i18nc("marginal trust", "marginal");
859 case Key::Full:
860 return i18nc("full trust", "full");
861 case Key::Ultimate:
862 return i18nc("ultimate trust", "ultimate");
863 case Key::Undefined:
864 return i18nc("undefined trust", "undefined");
865 default:
866 Q_ASSERT(!"unexpected owner trust value");
867 break;
868 }
869 return QString();
870}
871
872QString Formatting::validityShort(const Subkey &subkey)
873{
874 if (subkey.isDisabled()) {
875 return i18n("disabled");
876 }
877 if (subkey.isRevoked()) {
878 return i18n("revoked");
879 }
880 if (subkey.isExpired()) {
881 return i18n("expired");
882 }
883 if (subkey.isInvalid()) {
884 return i18n("invalid");
885 }
886 return i18nc("as in 'this subkey is ok'", "OK");
887}
888
889QString Formatting::validityShort(const UserID &uid)
890{
891 if (uid.isRevoked()) {
892 return i18n("revoked");
893 }
894 if (uid.isInvalid()) {
895 return i18n("invalid");
896 }
897 switch (uid.validity()) {
898 case UserID::Unknown:
899 return i18nc("unknown trust level", "unknown");
900 case UserID::Undefined:
901 return i18nc("undefined trust", "undefined");
902 case UserID::Never:
903 return i18n("untrusted");
904 case UserID::Marginal:
905 return i18nc("marginal trust", "marginal");
906 case UserID::Full:
907 return i18nc("full trust", "full");
908 case UserID::Ultimate:
909 return i18nc("ultimate trust", "ultimate");
910 }
911 return QString();
912}
913
914QString Formatting::validityShort(const UserID::Signature &sig)
915{
916 switch (sig.status()) {
917 case UserID::Signature::NoError:
918 if (!sig.isInvalid()) {
919 /* See RFC 4880 Section 5.2.1 */
920 switch (sig.certClass()) {
921 case 0x10: /* Generic */
922 case 0x11: /* Persona */
923 case 0x12: /* Casual */
924 case 0x13: /* Positive */
925 return i18n("valid");
926 case 0x30:
927 return i18n("revoked");
928 default:
929 return i18n("class %1", sig.certClass());
930 }
931 }
932 [[fallthrough]];
933 // fall through:
934 case UserID::Signature::GeneralError:
935 return i18n("invalid");
936 case UserID::Signature::SigExpired:
937 return i18n("expired");
938 case UserID::Signature::KeyExpired:
939 return i18n("certificate expired");
940 case UserID::Signature::BadSignature:
941 return i18nc("fake/invalid signature", "bad");
942 case UserID::Signature::NoPublicKey: {
943 /* GnuPG returns the same error for no public key as for expired
944 * or revoked certificates. */
945 const auto key = KeyCache::instance()->findByKeyIDOrFingerprint(sig.signerKeyID());
946 if (key.isNull()) {
947 return i18n("no public key");
948 } else if (key.isDisabled()) {
949 return i18n("key disabled");
950 } else if (key.isRevoked()) {
951 return i18n("key revoked");
952 } else if (key.isExpired()) {
953 return i18n("key expired");
954 }
955 /* can't happen */
956 return QStringLiteral("unknown");
957 }
958 }
959 return QString();
960}
961
962QIcon Formatting::validityIcon(const UserID::Signature &sig)
963{
964 switch (sig.status()) {
965 case UserID::Signature::NoError:
966 if (!sig.isInvalid()) {
967 /* See RFC 4880 Section 5.2.1 */
968 switch (sig.certClass()) {
969 case 0x10: /* Generic */
970 case 0x11: /* Persona */
971 case 0x12: /* Casual */
972 case 0x13: /* Positive */
973 return Formatting::successIcon();
974 case 0x30:
975 return Formatting::errorIcon();
976 default:
977 return QIcon();
978 }
979 }
980 [[fallthrough]];
981 // fall through:
982 case UserID::Signature::BadSignature:
983 case UserID::Signature::GeneralError:
984 return Formatting::errorIcon();
985 case UserID::Signature::SigExpired:
986 case UserID::Signature::KeyExpired:
987 return Formatting::infoIcon();
988 case UserID::Signature::NoPublicKey:
989 return Formatting::questionIcon();
990 }
991 return QIcon();
992}
993
994QString Formatting::formatKeyLink(const Key &key)
995{
996 if (key.isNull()) {
997 return QString();
998 }
999 return QStringLiteral("<a href=\"key:%1\">%2</a>").arg(QLatin1StringView(key.primaryFingerprint()), Formatting::prettyName(key));
1000}
1001
1002QString Formatting::formatForComboBox(const GpgME::Key &key)
1003{
1004 const QString name = prettyName(key);
1005 QString mail = prettyEMail(key);
1006 if (!mail.isEmpty()) {
1007 mail = QLatin1Char('<') + mail + QLatin1Char('>');
1008 }
1009 return i18nc("name, email, key id", "%1 %2 (%3)", name, mail, QLatin1StringView(key.keyID())).simplified();
1010}
1011
1012QString Formatting::nameAndEmailForSummaryLine(const UserID &id)
1013{
1014 Q_ASSERT(!id.isNull());
1015
1016 const QString email = Formatting::prettyEMail(id);
1017 const QString name = Formatting::prettyName(id);
1018
1019 if (name.isEmpty()) {
1020 return email;
1021 } else if (email.isEmpty()) {
1022 return name;
1023 } else {
1024 return QStringLiteral("%1 <%2>").arg(name, email);
1025 }
1026}
1027
1028QString Formatting::nameAndEmailForSummaryLine(const Key &key)
1029{
1030 Q_ASSERT(!key.isNull());
1031
1032 const QString email = Formatting::prettyEMail(key);
1033 const QString name = Formatting::prettyName(key);
1034
1035 if (name.isEmpty()) {
1036 return email;
1037 } else if (email.isEmpty()) {
1038 return name;
1039 } else {
1040 return QStringLiteral("%1 <%2>").arg(name, email);
1041 }
1042}
1043
1044const char *Formatting::summaryToString(const Signature::Summary summary)
1045{
1046 if (summary & Signature::Red) {
1047 return "RED";
1048 }
1049 if (summary & Signature::Green) {
1050 return "GREEN";
1051 }
1052 return "YELLOW";
1053}
1054
1055QString Formatting::signatureToString(const Signature &sig, const Key &key)
1056{
1057 if (sig.isNull()) {
1058 return QString();
1059 }
1060
1061 const bool red = (sig.summary() & Signature::Red);
1062 const bool valid = (sig.summary() & Signature::Valid);
1063
1064 if (red) {
1065 if (key.isNull()) {
1066 if (const char *fpr = sig.fingerprint()) {
1067 return i18n("Bad signature by unknown certificate %1: %2", QString::fromLatin1(fpr), Formatting::errorAsString(sig.status()));
1068 } else {
1069 return i18n("Bad signature by an unknown certificate: %1", Formatting::errorAsString(sig.status()));
1070 }
1071 } else {
1072 return i18n("Bad signature by %1: %2", nameAndEmailForSummaryLine(key), Formatting::errorAsString(sig.status()));
1073 }
1074
1075 } else if (valid) {
1076 if (key.isNull()) {
1077 if (const char *fpr = sig.fingerprint()) {
1078 return i18n("Good signature by unknown certificate %1.", QString::fromLatin1(fpr));
1079 } else {
1080 return i18n("Good signature by an unknown certificate.");
1081 }
1082 } else {
1083 return i18n("Good signature by %1.", nameAndEmailForSummaryLine(key));
1084 }
1085
1086 } else if (key.isNull()) {
1087 if (const char *fpr = sig.fingerprint()) {
1088 return i18n("Invalid signature by unknown certificate %1: %2", QString::fromLatin1(fpr), Formatting::errorAsString(sig.status()));
1089 } else {
1090 return i18n("Invalid signature by an unknown certificate: %1", Formatting::errorAsString(sig.status()));
1091 }
1092 } else {
1093 return i18n("Invalid signature by %1: %2", nameAndEmailForSummaryLine(key), Formatting::errorAsString(sig.status()));
1094 }
1095}
1096
1097//
1098// ImportResult
1099//
1100
1101QString Formatting::importMetaData(const Import &import, const QStringList &ids)
1102{
1103 const QString result = importMetaData(import);
1104 if (result.isEmpty()) {
1105 return QString();
1106 } else {
1107 return result + QLatin1Char('\n') + i18n("This certificate was imported from the following sources:") + QLatin1Char('\n') + ids.join(QLatin1Char('\n'));
1108 }
1109}
1110
1111QString Formatting::importMetaData(const Import &import)
1112{
1113 if (import.isNull()) {
1114 return QString();
1115 }
1116
1117 if (import.error().isCanceled()) {
1118 return i18n("The import of this certificate was canceled.");
1119 }
1120 if (import.error()) {
1121 return i18n("An error occurred importing this certificate: %1", Formatting::errorAsString(import.error()));
1122 }
1123
1124 const unsigned int status = import.status();
1125 if (status & Import::NewKey) {
1126 return (status & Import::ContainedSecretKey) ? i18n("This certificate was new to your keystore. The secret key is available.")
1127 : i18n("This certificate is new to your keystore.");
1128 }
1129
1130 QStringList results;
1131 if (status & Import::NewUserIDs) {
1132 results.push_back(i18n("New user-ids were added to this certificate by the import."));
1133 }
1134 if (status & Import::NewSignatures) {
1135 results.push_back(i18n("New signatures were added to this certificate by the import."));
1136 }
1137 if (status & Import::NewSubkeys) {
1138 results.push_back(i18n("New subkeys were added to this certificate by the import."));
1139 }
1140
1141 return results.empty() ? i18n("The import contained no new data for this certificate. It is unchanged.") : results.join(QLatin1Char('\n'));
1142}
1143
1144//
1145// Overview in CertificateDetailsDialog
1146//
1147
1148QString Formatting::formatOverview(const Key &key)
1149{
1150 return toolTip(key, AllOptions);
1151}
1152
1153QString Formatting::usageString(const Subkey &sub)
1154{
1155 QStringList usageStrings;
1156 if (sub.canCertify()) {
1157 usageStrings << i18n("Certify");
1158 }
1159 if (sub.canSign()) {
1160 usageStrings << i18n("Sign");
1161 }
1162 if (sub.canEncrypt()) {
1163 usageStrings << i18n("Encrypt");
1164 }
1165 if (sub.canAuthenticate()) {
1166 usageStrings << i18n("Authenticate");
1167 }
1168 if (sub.canRenc()) {
1169 usageStrings << i18nc("Means 'Additional Decryption Subkey'; Don't try translating that, though.", "ADSK");
1170 }
1171 return usageStrings.join(QLatin1StringView(", "));
1172}
1173
1174QString Formatting::summaryLine(const UserID &id)
1175{
1176 return i18nc("name <email> (validity, protocol, creation date)",
1177 "%1 (%2, %3, created: %4)",
1178 nameAndEmailForSummaryLine(id),
1179 Formatting::complianceStringShort(id),
1180 displayName(id.parent().protocol()),
1181 Formatting::creationDateString(id.parent()));
1182}
1183
1184QString Formatting::summaryLine(const Key &key)
1185{
1186 return nameAndEmailForSummaryLine(key) + QLatin1Char(' ')
1187 + i18nc("(validity, protocol, creation date)",
1188 "(%1, %2, created: %3)",
1189 Formatting::complianceStringShort(key),
1190 displayName(key.protocol()),
1191 Formatting::creationDateString(key));
1192}
1193
1194QString Formatting::summaryLine(const KeyGroup &group)
1195{
1196 switch (group.source()) {
1197 case KeyGroup::ApplicationConfig:
1198 case KeyGroup::GnuPGConfig:
1199 return i18ncp("name of group of keys (n key(s), validity)",
1200 "%2 (1 key, %3)",
1201 "%2 (%1 keys, %3)",
1202 group.keys().size(),
1203 group.name(),
1204 Formatting::complianceStringShort(group));
1205 case KeyGroup::Tags:
1206 return i18ncp("name of group of keys (n key(s), validity, tag)",
1207 "%2 (1 key, %3, tag)",
1208 "%2 (%1 keys, %3, tag)",
1209 group.keys().size(),
1210 group.name(),
1211 Formatting::complianceStringShort(group));
1212 default:
1213 return i18ncp("name of group of keys (n key(s), validity, group ...)",
1214 "%2 (1 key, %3, unknown origin)",
1215 "%2 (%1 keys, %3, unknown origin)",
1216 group.keys().size(),
1217 group.name(),
1218 Formatting::complianceStringShort(group));
1219 }
1220}
1221
1222// Icon for certificate selection indication
1223QIcon Formatting::iconForUid(const UserID &uid)
1224{
1225 if (Kleo::isRevokedOrExpired(uid)) {
1226 return Formatting::errorIcon();
1227 }
1228 return iconForValidity(uid);
1229}
1230
1231QString Formatting::validity(const UserID &uid)
1232{
1233 switch (uid.validity()) {
1234 case UserID::Ultimate:
1235 return i18n("The certificate is marked as your own.");
1236 case UserID::Full:
1237 return i18n("The certificate belongs to this recipient.");
1238 case UserID::Marginal:
1239 return i18n("The trust model indicates marginally that the certificate belongs to this recipient.");
1240 case UserID::Never:
1241 return i18n("This certificate should not be used.");
1242 case UserID::Undefined:
1243 case UserID::Unknown:
1244 default:
1245 return i18n("There is no indication that this certificate belongs to this recipient.");
1246 }
1247}
1248
1249QString Formatting::validity(const KeyGroup &group)
1250{
1251 if (group.isNull()) {
1252 return QString();
1253 }
1254
1255 const KeyGroup::Keys &keys = group.keys();
1256 if (keys.size() == 0) {
1257 return i18n("This group does not contain any keys.");
1258 }
1259
1260 return getValidityStatement(keys);
1261}
1262
1263namespace
1264{
1265template<typename Container>
1266UserID::Validity minimalValidity(const Container &keys)
1267{
1268 const int minValidity = std::accumulate(keys.cbegin(), keys.cend(), UserID::Ultimate + 1, [](int validity, const Key &key) {
1269 return std::min<int>(validity, minimalValidityOfNotRevokedUserIDs(key));
1270 });
1271 return minValidity <= UserID::Ultimate ? static_cast<UserID::Validity>(minValidity) : UserID::Unknown;
1272}
1273
1274template<typename Container>
1275bool allKeysAreCompliant(const Container &keys)
1276{
1277 if (!DeVSCompliance::isActive()) {
1278 return true;
1279 }
1280 if (!DeVSCompliance::isCompliant()) {
1281 return false;
1282 }
1283 return Kleo::all_of(keys, DeVSCompliance::keyIsCompliant);
1284}
1285}
1286
1287QIcon Formatting::validityIcon(const KeyGroup &group)
1288{
1289 if (Kleo::any_of(group.keys(), std::mem_fn(&Key::isBad))) {
1290 return Formatting::errorIcon();
1291 }
1292 return iconForValidityAndCompliance(minimalValidity(group.keys()), allKeysAreCompliant(group.keys()));
1293}
1294
1295QString Formatting::complianceMode()
1296{
1297 const auto complianceValue = getCryptoConfigStringValue("gpg", "compliance");
1298 return complianceValue == QLatin1StringView("gnupg") ? QString() : complianceValue;
1299}
1300
1301QString Formatting::complianceStringForKey(const GpgME::Key &key)
1302{
1303 // There will likely be more in the future for other institutions
1304 // for now we only have DE-VS
1305 if (DeVSCompliance::isCompliant()) {
1306 return isRemoteKey(key) //
1307 ? i18nc("@info the compliance of the key with certain requirements is unknown", "unknown")
1308 : DeVSCompliance::name(DeVSCompliance::keyIsCompliant(key));
1309 }
1310 return QString();
1311}
1312
1313QString Formatting::complianceStringForUserID(const GpgME::UserID &userID)
1314{
1315 // There will likely be more in the future for other institutions
1316 // for now we only have DE-VS
1317 if (DeVSCompliance::isCompliant()) {
1318 return isRemoteKey(userID.parent()) //
1319 ? i18nc("@info the compliance of the key with certain requirements is unknown", "unknown")
1320 : DeVSCompliance::name(DeVSCompliance::userIDIsCompliant(userID));
1321 }
1322 return QString();
1323}
1324
1325QString Formatting::complianceStringShort(const GpgME::UserID &id)
1326{
1327 if (DeVSCompliance::isCompliant() && DeVSCompliance::userIDIsCompliant(id)) {
1328 return QStringLiteral("★ ") + DeVSCompliance::name(true);
1329 }
1330 const bool keyValidityChecked = (id.parent().keyListMode() & GpgME::Validate);
1331 if (keyValidityChecked && id.validity() >= UserID::Full) {
1332 return i18nc("As in 'this user ID is valid.'", "certified");
1333 }
1334 if (id.parent().isDisabled()) {
1335 return i18n("disabled");
1336 }
1337 if (id.parent().isRevoked() || id.isRevoked()) {
1338 return i18n("revoked");
1339 }
1340 if (id.parent().isExpired() || isExpired(id)) {
1341 return i18n("expired");
1342 }
1343 if (id.parent().isInvalid() || id.isInvalid()) {
1344 return i18n("invalid");
1345 }
1346 if (keyValidityChecked) {
1347 return i18nc("As in 'this user ID is not certified'", "not certified");
1348 }
1349
1350 return i18nc("The validity of this user ID has not been/could not be checked", "not checked");
1351}
1352
1353QString Formatting::complianceStringShort(const GpgME::Key &key)
1354{
1355 if (DeVSCompliance::isCompliant() && DeVSCompliance::keyIsCompliant(key)) {
1356 return QStringLiteral("★ ") + DeVSCompliance::name(true);
1357 }
1358 const bool keyValidityChecked = (key.keyListMode() & GpgME::Validate);
1359 if (key.isDisabled()) {
1360 return i18n("disabled");
1361 }
1362 if (key.isRevoked()) {
1363 return i18n("revoked");
1364 }
1365 if (key.isExpired()) {
1366 return i18n("expired");
1367 }
1368 if (key.isInvalid()) {
1369 return i18n("invalid");
1370 }
1371 if (keyValidityChecked && Kleo::allUserIDsHaveFullValidity(key)) {
1372 return i18nc("As in all user IDs are valid.", "certified");
1373 }
1374 if (keyValidityChecked) {
1375 return i18nc("As in not all user IDs are valid.", "not certified");
1376 }
1377
1378 return i18nc("The validity of the user IDs has not been/could not be checked", "not checked");
1379}
1380
1381QString Formatting::complianceStringShort(const KeyGroup &group)
1382{
1383 const KeyGroup::Keys &keys = group.keys();
1384
1385 const bool allKeysFullyValid = std::all_of(keys.cbegin(), keys.cend(), &Kleo::allUserIDsHaveFullValidity);
1386 if (allKeysFullyValid) {
1387 return i18nc("As in all keys are valid.", "all certified");
1388 }
1389
1390 return i18nc("As in not all keys are valid.", "not all certified");
1391}
1392
1393QString Formatting::prettyID(const char *id)
1394{
1395 if (!id) {
1396 return QString();
1397 }
1398 QString ret = QString::fromLatin1(id).toUpper();
1399 if (ret.size() == 64) {
1400 // looks like a V5 fingerprint; format the first 25 bytes as 10 groups of 5 hex characters
1401 ret.truncate(50);
1402 return ret.replace(QRegularExpression(QStringLiteral("(.....)")), QStringLiteral("\\1 ")).trimmed();
1403 }
1404 ret = ret.replace(QRegularExpression(QStringLiteral("(....)")), QStringLiteral("\\1 ")).trimmed();
1405 // For the standard 10 group V4 fingerprint let us use a double space in the
1406 // middle to increase readability
1407 if (ret.size() == 49) {
1408 ret.insert(24, QLatin1Char(' '));
1409 }
1410 return ret;
1411}
1412
1413QString Formatting::accessibleHexID(const char *id)
1414{
1415 static const QRegularExpression groupOfFourRegExp{QStringLiteral("(?:(.)(.)(.)(.))")};
1416 static const QRegularExpression groupOfFiveRegExp{QStringLiteral("(?:(.)(.)(.)(.)(.))")};
1417
1418 QString ret;
1419 ret = QString::fromLatin1(id);
1420 if (ret.size() == 64) {
1421 ret.truncate(50);
1422 return ret.replace(groupOfFiveRegExp, QStringLiteral("\\1 \\2 \\3 \\4 \\5, ")).chopped(2);
1423 }
1424 if (!ret.isEmpty() && (ret.size() % 4 == 0)) {
1425 ret = ret.replace(groupOfFourRegExp, QStringLiteral("\\1 \\2 \\3 \\4, ")).chopped(2);
1426 }
1427 return ret;
1428}
1429
1430QString Formatting::origin(int o)
1431{
1432 switch (o) {
1433 case Key::OriginKS:
1434 return i18n("Keyserver");
1435 case Key::OriginDane:
1436 return QStringLiteral("DANE");
1437 case Key::OriginWKD:
1438 return QStringLiteral("WKD");
1439 case Key::OriginURL:
1440 return QStringLiteral("URL");
1441 case Key::OriginFile:
1442 return i18n("File import");
1443 case Key::OriginSelf:
1444 return i18n("Generated");
1445 case Key::OriginOther:
1446 case Key::OriginUnknown:
1447 default:
1448 return {};
1449 }
1450}
1451
1452QString Formatting::deVsString(bool compliant)
1453{
1454 return DeVSCompliance::name(compliant);
1455}
1456
1457namespace
1458{
1459QString formatTrustScope(const char *trustScope)
1460{
1461 static const QRegularExpression escapedNonAlphaNum{QStringLiteral(R"(\\‍([^0-9A-Za-z]))")};
1462
1463 const auto scopeRegExp = QString::fromUtf8(trustScope);
1464 if (scopeRegExp.startsWith(u"<[^>]+[@.]") && scopeRegExp.endsWith(u">$")) {
1465 // looks like a trust scope regular expression created by gpg
1466 auto domain = scopeRegExp.mid(10, scopeRegExp.size() - 10 - 2);
1467 domain.replace(escapedNonAlphaNum, QStringLiteral(R"(\1)"));
1468 return domain;
1469 }
1470 return scopeRegExp;
1471}
1472}
1473
1474QString Formatting::trustSignatureDomain(const GpgME::UserID::Signature &sig)
1475{
1476 return formatTrustScope(sig.trustScope());
1477}
1478
1479QString Formatting::trustSignature(const GpgME::UserID::Signature &sig)
1480{
1481 switch (sig.trustValue()) {
1482 case TrustSignatureTrust::Partial:
1483 return i18nc("Certifies this key as partially trusted introducer for 'domain name'.",
1484 "Certifies this key as partially trusted introducer for '%1'.",
1485 trustSignatureDomain(sig));
1486 case TrustSignatureTrust::Complete:
1487 return i18nc("Certifies this key as fully trusted introducer for 'domain name'.",
1488 "Certifies this key as fully trusted introducer for '%1'.",
1489 trustSignatureDomain(sig));
1490 default:
1491 return {};
1492 }
1493}
1494
1495QString Formatting::errorAsString(const GpgME::Error &error)
1496{
1497#ifdef Q_OS_WIN
1498 // On Windows, we set GpgME resp. libgpg-error to return (translated) error messages as UTF-8
1499#if GPGMEPP_ERROR_HAS_ASSTDSTRING
1500 const std::string s = error.asStdString();
1501 qCDebug(LIBKLEO_LOG) << __func__ << "gettext_use_utf8(-1) returns" << gettext_use_utf8(-1);
1502 qCDebug(LIBKLEO_LOG) << __func__ << "error:" << s;
1503 qCDebug(LIBKLEO_LOG) << __func__ << "error (percent-encoded):" << QByteArray::fromStdString(s).toPercentEncoding();
1504 return QString::fromStdString(s);
1505#else
1506 const char *s = error.asString();
1507 qCDebug(LIBKLEO_LOG) << __func__ << "gettext_use_utf8(-1) returns" << gettext_use_utf8(-1);
1508 qCDebug(LIBKLEO_LOG) << __func__ << "error:" << s;
1509 qCDebug(LIBKLEO_LOG) << __func__ << "error (percent-encoded):" << QByteArray{s}.toPercentEncoding();
1510 return QString::fromUtf8(s);
1511#endif
1512#else
1513#if GPGMEPP_ERROR_HAS_ASSTDSTRING
1514 const std::string s = error.asStdString();
1515 return QString::fromLocal8Bit(QByteArrayView{s.data(), qsizetype(s.size())});
1516#else
1517 return QString::fromLocal8Bit(error.asString());
1518#endif
1519#endif
1520}
1521
1522QString Formatting::prettyAlgorithmName(const std::string &algorithm)
1523{
1524 static const std::map<std::string, QString> displayNames = {
1525 {"brainpoolP256r1", i18nc("@info", "ECC (Brainpool P-256)")},
1526 {"brainpoolP384r1", i18nc("@info", "ECC (Brainpool P-384)")},
1527 {"brainpoolP512r1", i18nc("@info", "ECC (Brainpool P-512)")},
1528 {"curve25519", i18nc("@info", "ECC (Curve25519)")},
1529 {"curve448", i18nc("@info", "ECC (Curve448)")},
1530 {"ed25519", i18nc("@info", "ECC (Ed25519)")},
1531 {"ed448", i18nc("@info", "ECC (Ed448)")},
1532 {"cv25519", i18nc("@info", "ECC (Cv25519)")},
1533 {"cv448", i18nc("@info", "ECC (Cv448)")},
1534 {"nistp256", i18nc("@info", "ECC (NIST P-256)")},
1535 {"nistp384", i18nc("@info", "ECC (NIST P-384)")},
1536 {"nistp521", i18nc("@info", "ECC (NIST P-521)")},
1537 {"rsa2048", i18nc("@info", "RSA 2048")},
1538 {"rsa3072", i18nc("@info", "RSA 3072")},
1539 {"rsa4096", i18nc("@info", "RSA 4096")},
1540 {"dsa1024", i18nc("@info", "DSA 1024")},
1541 {"dsa2048", i18nc("@info", "DSA 2048")},
1542 {"elg1024", i18nc("@info", "Elgamal 1024")},
1543 {"elg2048", i18nc("@info", "Elgamal 2048")},
1544 {"elg3072", i18nc("@info", "Elgamal 3072")},
1545 {"elg4096", i18nc("@info", "Elgamal 4096")},
1546 };
1547 const auto it = displayNames.find(algorithm);
1548 return (it != displayNames.end()) ? it->second : i18nc("@info", "Unknown algorithm");
1549}
1550
1551static QString formatValidSignatureWithTrustLevel(const GpgME::UserID &id)
1552{
1553 if (id.isNull()) {
1554 return QString();
1555 }
1556 switch (id.validity()) {
1557 case GpgME::UserID::Marginal:
1558 return i18n("The signature is valid but the trust in the certificate's validity is only marginal.");
1559 case GpgME::UserID::Full:
1560 return i18n("The signature is valid and the certificate's validity is fully trusted.");
1561 case GpgME::UserID::Ultimate:
1562 return i18n("The signature is valid and the certificate's validity is ultimately trusted.");
1563 case GpgME::UserID::Never:
1564 return i18n("The signature is valid but the certificate's validity is <em>not trusted</em>.");
1565 case GpgME::UserID::Unknown:
1566 return i18n("The signature is valid but the certificate's validity is unknown.");
1567 case GpgME::UserID::Undefined:
1568 default:
1569 return i18n("The signature is valid but the certificate's validity is undefined.");
1570 }
1571}
1572
1573static QString renderKeyLink(const QString &fpr, const QString &text)
1574{
1575 return QStringLiteral("<a href=\"key:%1\">%2</a>").arg(fpr, text.toHtmlEscaped());
1576}
1577
1578static QString renderKey(const GpgME::Key &key)
1579{
1580 if (key.isNull()) {
1581 return i18n("Unknown certificate");
1582 }
1583
1584 return renderKeyLink(QLatin1StringView(key.primaryFingerprint()),
1585 i18nc("User ID (Key ID)", "%1 (%2)", Formatting::prettyNameAndEMail(key), Formatting::prettyID(key.subkey(0).keyID())));
1586}
1587
1588static QString formatSigningInformation(const GpgME::Signature &sig, const GpgME::Key &key)
1589{
1590 if (sig.isNull()) {
1591 return QString();
1592 }
1593 QString text;
1594 const QDateTime dt = sig.creationTime() != 0 ? QDateTime::fromSecsSinceEpoch(quint32(sig.creationTime())) : QDateTime();
1595
1596 if (key.isNull()) {
1597 const QString id = u"<br/>"_s + Formatting::prettyID(sig.fingerprint());
1598 if (dt.isValid()) {
1599 return i18nc("1 is a date", "Signature created on %1 using an unknown certificate with fingerprint %2", QLocale().toString(dt), id);
1600 }
1601 return i18n("Signature created using an unknown certificate with fingerprint %1", id);
1602 }
1603
1604 if (dt.isValid()) {
1605 text += i18nc("1 is a date", "Signature created on %1 with certificate: %2", QLocale().toString(dt), renderKey(key));
1606 } else {
1607 text += i18n("Signature created with certificate: %1", renderKey(key));
1608 }
1609
1610 if (Kleo::DeVSCompliance::isCompliant() && ((sig.summary() & GpgME::Signature::Valid) || (sig.summary() & GpgME::Signature::Green))) {
1611 text += (QStringLiteral("<br/>")
1612 + (sig.isDeVs() ? i18nc("%1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
1613 "The signature is %1",
1614 Kleo::DeVSCompliance::name(true))
1615 : i18nc("%1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
1616 "The signature <b>is not</b> %1.",
1617 Kleo::DeVSCompliance::name(true))));
1618 }
1619
1620 return text;
1621}
1622
1623static QString signatureSummaryToString(GpgME::Signature::Summary summary)
1624{
1625 if (summary & GpgME::Signature::None) {
1626 return i18n("Error: Signature not verified");
1627 } else if ((summary & GpgME::Signature::Valid) || (summary & GpgME::Signature::Green)) {
1628 return i18n("Good signature");
1629 } else if (summary & GpgME::Signature::KeyRevoked) {
1630 return i18n("Signing certificate was revoked");
1631 } else if (summary & GpgME::Signature::KeyExpired) {
1632 return i18n("Signing certificate is expired");
1633 } else if (summary & GpgME::Signature::KeyMissing) {
1634 return i18n("Certificate is not available");
1635 } else if (summary & GpgME::Signature::SigExpired) {
1636 return i18n("Signature expired");
1637 } else if (summary & GpgME::Signature::CrlMissing) {
1638 return i18n("CRL missing");
1639 } else if (summary & GpgME::Signature::CrlTooOld) {
1640 return i18n("CRL too old");
1641 } else if (summary & GpgME::Signature::BadPolicy) {
1642 return i18n("Bad policy");
1643 } else if (summary & GpgME::Signature::SysError) {
1644 return i18n("System error"); // ### retrieve system error details?
1645 } else if (summary & GpgME::Signature::Red) {
1646 return i18n("Bad signature");
1647 }
1648 return QString();
1649}
1650
1651static QLatin1StringView stripAngleBrackets(const QLatin1StringView &str)
1652{
1653 if (str.isEmpty()) {
1654 return str;
1655 }
1656 if (str[0] == '<' && str[str.size() - 1] == '>') {
1657 return str.mid(1, str.size() - 2);
1658 }
1659 return str;
1660}
1661
1662QString Formatting::email(const GpgME::UserID &uid)
1663{
1664 if (uid.parent().protocol() == GpgME::OpenPGP) {
1665 const QLatin1StringView email(uid.email());
1666 if (!email.isEmpty()) {
1667 return stripAngleBrackets(email).toString();
1668 }
1669 return {};
1670 }
1671
1672 Q_ASSERT(uid.parent().protocol() == GpgME::CMS);
1673
1674 const QLatin1StringView id(uid.id());
1675 if (!id.isEmpty()) {
1676 if (id[0] == '<') {
1677 return stripAngleBrackets(id).toString();
1678 }
1679 return Kleo::DN(id)[QStringLiteral("EMAIL")].trimmed();
1680 }
1681 return {};
1682}
1683
1684static GpgME::UserID findUserIDByMailbox(const GpgME::Key &key, const QString &email)
1685{
1686 const auto userIDs{key.userIDs()};
1687 for (const GpgME::UserID &id : userIDs) {
1688 if (Formatting::email(id).compare(email, Qt::CaseInsensitive)) {
1689 return id;
1690 }
1691 }
1692 return {};
1693}
1694
1695QString Kleo::Formatting::prettySignature(const GpgME::Signature &sig, const QString &sender)
1696{
1697 if (sig.isNull()) {
1698 return QString();
1699 }
1700
1701 const GpgME::Key key = Kleo::KeyCache::instance()->findSigner(sig);
1702
1703 const QString text = formatSigningInformation(sig, key) + QLatin1StringView("<br/>");
1704
1705 // Green
1706 if (sig.summary() & GpgME::Signature::Valid) {
1707 GpgME::UserID id = findUserIDByMailbox(key, sender);
1708 if (id.isNull()) {
1709 for (int i = 0, count = key.userIDs().size(); i < count; i++) {
1710 id = key.userID(i);
1711 if (!id.isNull()) {
1712 break;
1713 }
1714 }
1715 }
1716
1717 return text + formatValidSignatureWithTrustLevel(!id.isNull() ? id : key.userID(0));
1718 }
1719
1720 // Red
1721 if ((sig.summary() & GpgME::Signature::Red)) {
1722 const QString ret = text + i18n("The signature is invalid: %1", signatureSummaryToString(sig.summary()));
1723 if (sig.summary() & GpgME::Signature::SysError) {
1724 return ret + QStringLiteral(" (%1)").arg(Kleo::Formatting::errorAsString(sig.status()));
1725 }
1726 return ret;
1727 }
1728
1729 // Key missing
1730 if ((sig.summary() & GpgME::Signature::KeyMissing)) {
1731 return text + i18n("You can search the certificate on a keyserver or import it from a file.");
1732 }
1733
1734 // Yellow
1735 if ((sig.validity() & GpgME::Signature::Validity::Undefined) //
1736 || (sig.validity() & GpgME::Signature::Validity::Unknown) //
1737 || (sig.summary() == GpgME::Signature::Summary::None)) {
1738 return text
1739 + (key.protocol() == GpgME::OpenPGP
1740 ? i18n("The used key is not certified by you or any trusted person.")
1741 : i18n("The used certificate is not certified by a trustworthy Certificate Authority or the Certificate Authority is unknown."));
1742 }
1743
1744 // Catch all fall through
1745 const QString ret = text + i18n("The signature is invalid: %1", signatureSummaryToString(sig.summary()));
1746 if (sig.summary() & GpgME::Signature::SysError) {
1747 return ret + QStringLiteral(" (%1)").arg(Kleo::Formatting::errorAsString(sig.status()));
1748 }
1749 return ret;
1750}
Kleo::DN
DN parser and reorderer.
Definition dn.h:27
Kleo::DN::prettyDN
QString prettyDN() const
Definition dn.cpp:445
status
Q_SCRIPTABLE CaptureState status()
KEmailAddress::splitAddress
KCODECS_EXPORT EmailParseResult splitAddress(const QByteArray &address, QByteArray &displayName, QByteArray &addrSpec, QByteArray &comment)
KEmailAddress::AddressOk
AddressOk
i18np
QString i18np(const char *singular, const char *plural, const TYPE &arg...)
i18nc
QString i18nc(const char *context, const char *text, const TYPE &arg...)
i18n
QString i18n(const char *text, const TYPE &arg...)
i18ncp
QString i18ncp(const char *context, const char *singular, const char *plural, const TYPE &arg...)
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Capabilities capabilities()
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QByteArray::fromStdString
QByteArray fromStdString(const std::string &str)
QByteArray::toPercentEncoding
QByteArray toPercentEncoding(const QByteArray &exclude, const QByteArray &include, char percent) const const
QByteArray::trimmed
QByteArray trimmed() const const
QDateTime::date
QDate date() const const
QDateTime::fromSecsSinceEpoch
QDateTime fromSecsSinceEpoch(qint64 secs)
QDateTime::isValid
bool isValid() const const
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QLatin1StringView::isEmpty
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QLatin1StringView::mid
QLatin1StringView mid(qsizetype start, qsizetype length) const const
QLatin1StringView::size
qsizetype size() const const
QLatin1StringView::toString
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QList::empty
bool empty() const const
QList::push_back
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QList::reserve
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QLocale::toString
QString toString(QDate date, FormatType format) const const
QString::arg
QString arg(Args &&... args) const const
QString::chopped
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QString::fromLatin1
QString fromLatin1(QByteArrayView str)
QString::fromLocal8Bit
QString fromLocal8Bit(QByteArrayView str)
QString::fromStdString
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QString::fromUtf8
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QString::isEmpty
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QString::replace
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QString::simplified
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QString::size
qsizetype size() const const
QString::toHtmlEscaped
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QString::trimmed
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Qt::CaseInsensitive
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