Messagelib

keyresolver.cpp
1/* -*- c++ -*-
2 keyresolver.cpp
3
4 This file is part of libkleopatra, the KDE keymanagement library
5 SPDX-FileCopyrightText: 2004 Klarälvdalens Datakonsult AB
6
7 Based on kpgp.cpp
8 Copyright (C) 2001,2002 the KPGP authors
9 See file libkdenetwork/AUTHORS.kpgp for details
10
11 SPDX-License-Identifier: GPL-2.0-or-later
12*/
13
14#include "composer/keyresolver.h"
15
16#include "contactpreference/savecontactpreferencejob.h"
17
18#include "utils/kleo_util.h"
19#include <KCursorSaver>
20
21#include <KEmailAddress>
22
23#include <Libkleo/Algorithm>
24#include <Libkleo/Compliance>
25#include <Libkleo/ExpiryChecker>
26#include <Libkleo/KeySelectionDialog>
27
28#include <QGpgME/KeyListJob>
29#include <QGpgME/Protocol>
30
31#include <gpgme++/key.h>
32#include <gpgme++/keylistresult.h>
33
34#include "messagecomposer_debug.h"
35#include <Akonadi/ContactSearchJob>
36#include <KLocalizedString>
37#include <KMessageBox>
38
39#include <MessageCore/AutocryptRecipient>
40#include <MessageCore/AutocryptStorage>
41
42#include <QPointer>
43
44#include <algorithm>
45#include <cassert>
46#include <ctime>
47#include <functional>
48#include <iostream>
49#include <iterator>
50#include <map>
51#include <memory>
52#include <set>
53
54using namespace MessageComposer;
55using namespace Kleo;
56
57//
58// some predicates to be used in STL algorithms:
59//
60
61static inline bool EmptyKeyList(const KeyApprovalDialog::Item &item)
62{
63 return item.keys.empty();
64}
65
66static inline QString ItemDotAddress(const KeyResolver::Item &item)
67{
68 return item.address;
69}
70
71static inline bool ApprovalNeeded(const KeyResolver::Item &item)
72{
73 bool approvalNeeded = item.pref == Kleo::NeverEncrypt || item.keys.empty();
74 if (!approvalNeeded && Kleo::DeVSCompliance::isCompliant()) {
75 approvalNeeded = !Kleo::all_of(item.keys, &Kleo::DeVSCompliance::keyIsCompliant);
76 }
77 return approvalNeeded;
78}
79
80static inline KeyResolver::Item CopyKeysAndEncryptionPreferences(const KeyResolver::Item &oldItem, const KeyApprovalDialog::Item &newItem)
81{
82 return KeyResolver::Item(oldItem.address, newItem.keys, newItem.pref, oldItem.signPref, oldItem.format);
83}
84
85static bool ValidOpenPGPEncryptionKey(const GpgME::Key &key)
86{
87 if (key.protocol() != GpgME::OpenPGP) {
88 return false;
89 }
90 if (key.isRevoked()) {
91 qCWarning(MESSAGECOMPOSER_LOG) << "is revoked";
92 }
93 if (key.isExpired()) {
94 qCWarning(MESSAGECOMPOSER_LOG) << "is expired";
95 }
96 if (key.isDisabled()) {
97 qCWarning(MESSAGECOMPOSER_LOG) << "is disabled";
98 }
99 if (!key.canEncrypt()) {
100 qCWarning(MESSAGECOMPOSER_LOG) << "can't encrypt";
101 }
102 if (key.isRevoked() || key.isExpired() || key.isDisabled() || !key.canEncrypt()) {
103 return false;
104 }
105 return true;
106}
107
108static bool ValidTrustedOpenPGPEncryptionKey(const GpgME::Key &key)
109{
110 if (!ValidOpenPGPEncryptionKey(key)) {
111 return false;
112 }
113 const std::vector<GpgME::UserID> uids = key.userIDs();
114 auto end(uids.end());
115 for (auto it = uids.begin(); it != end; ++it) {
116 if (!it->isRevoked() && it->validity() >= GpgME::UserID::Marginal) {
117 return true;
118 } else if (it->isRevoked()) {
119 qCWarning(MESSAGECOMPOSER_LOG) << "a userid is revoked";
120 } else {
121 qCWarning(MESSAGECOMPOSER_LOG) << "bad validity" << int(it->validity());
122 }
123 }
124 return false;
125}
126
127static bool ValidSMIMEEncryptionKey(const GpgME::Key &key)
128{
129 if (key.protocol() != GpgME::CMS) {
130 return false;
131 }
132 if (key.isRevoked() || key.isExpired() || key.isDisabled() || !key.canEncrypt()) {
133 return false;
134 }
135 return true;
136}
137
138static bool ValidTrustedSMIMEEncryptionKey(const GpgME::Key &key)
139{
140 if (!ValidSMIMEEncryptionKey(key)) {
141 return false;
142 }
143 return true;
144}
145
146static inline bool ValidTrustedEncryptionKey(const GpgME::Key &key)
147{
148 switch (key.protocol()) {
149 case GpgME::OpenPGP:
150 return ValidTrustedOpenPGPEncryptionKey(key);
151 case GpgME::CMS:
152 return ValidTrustedSMIMEEncryptionKey(key);
153 default:
154 return false;
155 }
156}
157
158static inline bool ValidEncryptionKey(const GpgME::Key &key)
159{
160 switch (key.protocol()) {
161 case GpgME::OpenPGP:
162 return ValidOpenPGPEncryptionKey(key);
163 case GpgME::CMS:
164 return ValidSMIMEEncryptionKey(key);
165 default:
166 return false;
167 }
168}
169
170static inline bool ValidSigningKey(const GpgME::Key &key)
171{
172 if (key.isRevoked() || key.isExpired() || key.isDisabled() || !key.canSign()) {
173 return false;
174 }
175 return key.hasSecret();
176}
177
178static inline bool ValidOpenPGPSigningKey(const GpgME::Key &key)
179{
180 return key.protocol() == GpgME::OpenPGP && ValidSigningKey(key);
181}
182
183static inline bool ValidSMIMESigningKey(const GpgME::Key &key)
184{
185 return key.protocol() == GpgME::CMS && ValidSigningKey(key);
186}
187
188static inline bool NotValidTrustedOpenPGPEncryptionKey(const GpgME::Key &key)
189{
190 return !ValidTrustedOpenPGPEncryptionKey(key);
191}
192
193static inline bool NotValidTrustedSMIMEEncryptionKey(const GpgME::Key &key)
194{
195 return !ValidTrustedSMIMEEncryptionKey(key);
196}
197
198static inline bool NotValidTrustedEncryptionKey(const GpgME::Key &key)
199{
200 return !ValidTrustedEncryptionKey(key);
201}
202
203static inline bool NotValidEncryptionKey(const GpgME::Key &key)
204{
205 return !ValidEncryptionKey(key);
206}
207
208static inline bool NotValidOpenPGPSigningKey(const GpgME::Key &key)
209{
210 return !ValidOpenPGPSigningKey(key);
211}
212
213static inline bool NotValidSMIMESigningKey(const GpgME::Key &key)
214{
215 return !ValidSMIMESigningKey(key);
216}
217
218namespace
219{
220struct ByTrustScore {
221 static int score(const GpgME::UserID &uid)
222 {
223 return uid.isRevoked() || uid.isInvalid() ? -1 : uid.validity();
224 }
225
226 bool operator()(const GpgME::UserID &lhs, const GpgME::UserID &rhs) const
227 {
228 return score(lhs) < score(rhs);
229 }
230};
231}
232
233static std::vector<GpgME::UserID> matchingUIDs(const std::vector<GpgME::UserID> &uids, const QString &address)
234{
235 if (address.isEmpty()) {
236 return {};
237 }
238
239 std::vector<GpgME::UserID> result;
240 result.reserve(uids.size());
241
242 for (auto it = uids.begin(), end = uids.end(); it != end; ++it) {
243 // PENDING(marc) check DN for an EMAIL, too, in case of X.509 certs... :/
244 if (const char *email = it->email()) {
245 if (*email && QString::fromUtf8(email).simplified().toLower() == address) {
246 result.push_back(*it);
247 }
248 }
249 }
250 return result;
251}
252
253static GpgME::UserID findBestMatchUID(const GpgME::Key &key, const QString &address)
254{
255 const std::vector<GpgME::UserID> all = key.userIDs();
256 if (all.empty()) {
257 return {};
258 }
259 const std::vector<GpgME::UserID> matching = matchingUIDs(all, address.toLower());
260 const std::vector<GpgME::UserID> &v = matching.empty() ? all : matching;
261 return *std::max_element(v.begin(), v.end(), ByTrustScore());
262}
263
264static QStringList keysAsStrings(const std::vector<GpgME::Key> &keys)
265{
266 QStringList strings;
267 strings.reserve(keys.size());
268 for (auto it = keys.begin(); it != keys.end(); ++it) {
269 assert(!(*it).userID(0).isNull());
270 const auto userID = (*it).userID(0);
271 QString keyLabel = QString::fromUtf8(userID.email());
272 if (keyLabel.isEmpty()) {
273 keyLabel = QString::fromUtf8(userID.name());
274 }
275 if (keyLabel.isEmpty()) {
276 keyLabel = QString::fromUtf8(userID.id());
277 }
278 strings.append(keyLabel);
279 }
280 return strings;
281}
282
283static std::vector<GpgME::Key> trustedOrConfirmed(const std::vector<GpgME::Key> &keys, const QString &address, bool &canceled)
284{
285 // PENDING(marc) work on UserIDs here?
286 std::vector<GpgME::Key> fishies;
287 std::vector<GpgME::Key> ickies;
288 std::vector<GpgME::Key> rewookies;
289 auto it = keys.begin();
290 const auto end = keys.end();
291 for (; it != end; ++it) {
292 const GpgME::Key &key = *it;
293 assert(ValidEncryptionKey(key));
294 const GpgME::UserID uid = findBestMatchUID(key, address);
295 if (uid.isRevoked()) {
296 rewookies.push_back(key);
297 }
298 if (!uid.isRevoked()) {
299 if (uid.validity() == GpgME::UserID::Marginal) {
300 fishies.push_back(key);
301 }
302 if (uid.validity() < GpgME::UserID::Never) {
303 ickies.push_back(key);
304 }
305 }
306 }
307
308 if (fishies.empty() && ickies.empty() && rewookies.empty()) {
309 return keys;
310 }
311
312 // if some keys are not fully trusted, let the user confirm their use
313 QString msg = address.isEmpty() ? i18n(
314 "One or more of your configured OpenPGP encryption "
315 "keys or S/MIME certificates is not fully trusted "
316 "for encryption.")
317 : i18n(
318 "One or more of the OpenPGP encryption keys or S/MIME "
319 "certificates for recipient \"%1\" is not fully trusted "
320 "for encryption.",
321 address);
322
323 if (!fishies.empty()) {
324 // certificates can't have marginal trust
325 msg += i18n("\nThe following keys are only marginally trusted: \n");
326 msg += keysAsStrings(fishies).join(QLatin1Char(','));
327 }
328 if (!ickies.empty()) {
329 msg += i18n("\nThe following keys or certificates have unknown trust level: \n");
330 msg += keysAsStrings(ickies).join(QLatin1Char(','));
331 }
332 if (!rewookies.empty()) {
333 msg += i18n("\nThe following keys or certificates are <b>revoked</b>: \n");
334 msg += keysAsStrings(rewookies).join(QLatin1Char(','));
335 }
336
337 if (KMessageBox::warningContinueCancel(nullptr,
338 msg,
339 i18nc("@title:window", "Not Fully Trusted Encryption Keys"),
340 KStandardGuiItem::cont(),
341 KStandardGuiItem::cancel(),
342 QStringLiteral("not fully trusted encryption key warning"))
343 == KMessageBox::Continue) {
344 return keys;
345 } else {
346 canceled = true;
347 }
348 return {};
349}
350
351namespace
352{
353struct IsNotForFormat : public std::function<bool(GpgME::Key)> {
354 IsNotForFormat(Kleo::CryptoMessageFormat f)
355 : format(f)
356 {
357 }
358
359 bool operator()(const GpgME::Key &key) const
360 {
361 return (isOpenPGP(format) && key.protocol() != GpgME::OpenPGP) || (isSMIME(format) && key.protocol() != GpgME::CMS);
362 }
363
364 const Kleo::CryptoMessageFormat format;
365};
366
367struct IsForFormat : std::function<bool(GpgME::Key)> {
368 explicit IsForFormat(Kleo::CryptoMessageFormat f)
369 : protocol(isOpenPGP(f) ? GpgME::OpenPGP
370 : isSMIME(f) ? GpgME::CMS
371 : GpgME::UnknownProtocol)
372 {
373 }
374
375 bool operator()(const GpgME::Key &key) const
376 {
377 return key.protocol() == protocol;
378 }
379
380 const GpgME::Protocol protocol;
381};
382}
383
384class KeyResolver::SigningPreferenceCounter : public std::function<void(KeyResolver::Item)>
385{
386public:
387 SigningPreferenceCounter() = default;
388
389 void operator()(const KeyResolver::Item &item);
390#define make_int_accessor(x) \
391 unsigned int num##x() const \
392 { \
393 return m##x; \
394 }
395 make_int_accessor(UnknownSigningPreference) make_int_accessor(NeverSign) make_int_accessor(AlwaysSign) make_int_accessor(AlwaysSignIfPossible)
396 make_int_accessor(AlwaysAskForSigning) make_int_accessor(AskSigningWheneverPossible) make_int_accessor(Total)
397#undef make_int_accessor
398 private : unsigned int mTotal = 0;
399 unsigned int mUnknownSigningPreference = 0;
400 unsigned int mNeverSign = 0;
401 unsigned int mAlwaysSign = 0;
402 unsigned int mAlwaysSignIfPossible = 0;
403 unsigned int mAlwaysAskForSigning = 0;
404 unsigned int mAskSigningWheneverPossible = 0;
405};
406
407void KeyResolver::SigningPreferenceCounter::operator()(const KeyResolver::Item &item)
408{
409 switch (item.signPref) {
410#define CASE(x) \
411 case x: \
412 ++m##x; \
413 break
414 CASE(UnknownSigningPreference);
415 CASE(NeverSign);
416 CASE(AlwaysSign);
417 CASE(AlwaysSignIfPossible);
418 CASE(AlwaysAskForSigning);
419 CASE(AskSigningWheneverPossible);
420#undef CASE
421 }
422 ++mTotal;
423}
424
425class KeyResolver::EncryptionPreferenceCounter : public std::function<void(Item)>
426{
427 const KeyResolver *_this;
428
429public:
430 EncryptionPreferenceCounter(const KeyResolver *kr, EncryptionPreference defaultPreference)
431 : _this(kr)
432 , mDefaultPreference(defaultPreference)
433 {
434 }
435
436 void operator()(Item &item);
437
438 template<typename Container>
439 void process(Container &c)
440 {
441 *this = std::for_each(c.begin(), c.end(), *this);
442 }
443
444#define make_int_accessor(x) \
445 unsigned int num##x() const \
446 { \
447 return m##x; \
448 }
449 make_int_accessor(NoKey) make_int_accessor(NeverEncrypt) make_int_accessor(UnknownPreference) make_int_accessor(AlwaysEncrypt)
450 make_int_accessor(AlwaysEncryptIfPossible) make_int_accessor(AlwaysAskForEncryption) make_int_accessor(AskWheneverPossible) make_int_accessor(Total)
451#undef make_int_accessor
452 private : EncryptionPreference mDefaultPreference;
453 unsigned int mTotal = 0;
454 unsigned int mNoKey = 0;
455 unsigned int mNeverEncrypt = 0;
456 unsigned int mUnknownPreference = 0;
457 unsigned int mAlwaysEncrypt = 0;
458 unsigned int mAlwaysEncryptIfPossible = 0;
459 unsigned int mAlwaysAskForEncryption = 0;
460 unsigned int mAskWheneverPossible = 0;
461};
462
463void KeyResolver::EncryptionPreferenceCounter::operator()(Item &item)
464{
465 if (_this) {
466 if (item.needKeys) {
467 item.keys = _this->getEncryptionKeys(item.address, true);
468 }
469 if (item.keys.empty()) {
470 ++mNoKey;
471 return;
472 }
473 }
474 switch (!item.pref ? mDefaultPreference : item.pref) {
475#define CASE(x) \
476 case Kleo::x: \
477 ++m##x; \
478 break
479 CASE(NeverEncrypt);
480 CASE(UnknownPreference);
481 CASE(AlwaysEncrypt);
482 CASE(AlwaysEncryptIfPossible);
483 CASE(AlwaysAskForEncryption);
484 CASE(AskWheneverPossible);
485#undef CASE
486 }
487 ++mTotal;
488}
489
490namespace
491{
492class FormatPreferenceCounterBase : public std::function<void(KeyResolver::Item)>
493{
494public:
495 FormatPreferenceCounterBase() = default;
496
497#define make_int_accessor(x) \
498 unsigned int num##x() const \
499 { \
500 return m##x; \
501 }
502 make_int_accessor(Total) make_int_accessor(InlineOpenPGP) make_int_accessor(OpenPGPMIME) make_int_accessor(SMIME) make_int_accessor(SMIMEOpaque)
503#undef make_int_accessor
504
505 [[nodiscard]] unsigned int numOf(Kleo::CryptoMessageFormat f) const
506 {
507 switch (f) {
508#define CASE(x) \
509 case Kleo::x##Format: \
510 return m##x
511 CASE(InlineOpenPGP);
512 CASE(OpenPGPMIME);
513 CASE(SMIME);
514 CASE(SMIMEOpaque);
515#undef CASE
516 default:
517 return 0;
518 }
519 }
520
521protected:
522 unsigned int mTotal = 0;
523 unsigned int mInlineOpenPGP = 0;
524 unsigned int mOpenPGPMIME = 0;
525 unsigned int mSMIME = 0;
526 unsigned int mSMIMEOpaque = 0;
527};
528
529class EncryptionFormatPreferenceCounter : public FormatPreferenceCounterBase
530{
531public:
532 EncryptionFormatPreferenceCounter() = default;
533
534 void operator()(const KeyResolver::Item &item);
535};
536
537class SigningFormatPreferenceCounter : public FormatPreferenceCounterBase
538{
539public:
540 SigningFormatPreferenceCounter() = default;
541
542 void operator()(const KeyResolver::Item &item);
543};
544
545#define CASE(x) \
546 if (item.format & Kleo::x##Format) { \
547 ++m##x; \
548 }
549void EncryptionFormatPreferenceCounter::operator()(const KeyResolver::Item &item)
550{
551 if (item.format & (Kleo::InlineOpenPGPFormat | Kleo::OpenPGPMIMEFormat)
552 && std::any_of(item.keys.begin(),
553 item.keys.end(),
554 ValidTrustedOpenPGPEncryptionKey)) { // -= trusted?
555 CASE(OpenPGPMIME);
556 CASE(InlineOpenPGP);
557 }
558 if (item.format & (Kleo::SMIMEFormat | Kleo::SMIMEOpaqueFormat)
559 && std::any_of(item.keys.begin(),
560 item.keys.end(),
561 ValidTrustedSMIMEEncryptionKey)) { // -= trusted?
562 CASE(SMIME);
563 CASE(SMIMEOpaque);
564 }
565 ++mTotal;
566}
567
568void SigningFormatPreferenceCounter::operator()(const KeyResolver::Item &item)
569{
570 CASE(InlineOpenPGP);
571 CASE(OpenPGPMIME);
572 CASE(SMIME);
573 CASE(SMIMEOpaque);
574 ++mTotal;
575}
576
577#undef CASE
578} // anon namespace
579
580static QString canonicalAddress(const QString &_address)
581{
582 const QString address = KEmailAddress::extractEmailAddress(_address);
583 if (!address.contains(QLatin1Char('@'))) {
584 // local address
585 // return address + '@' + KNetwork::KResolver::localHostName();
586 return address + QLatin1StringView("@localdomain");
587 } else {
588 return address;
589 }
590}
591
592struct FormatInfo {
593 std::vector<KeyResolver::SplitInfo> splitInfos;
594 std::vector<GpgME::Key> signKeys;
595};
596
597struct Q_DECL_HIDDEN MessageComposer::KeyResolver::KeyResolverPrivate {
598 bool mAkonadiLookupEnabled = true;
599 bool mAutocryptEnabled = false;
600 std::set<QByteArray> alreadyWarnedFingerprints;
601
602 std::vector<GpgME::Key> mOpenPGPSigningKeys; // signing
603 std::vector<GpgME::Key> mSMIMESigningKeys; // signing
604
605 std::vector<GpgME::Key> mOpenPGPEncryptToSelfKeys; // encryption to self
606 std::vector<GpgME::Key> mSMIMEEncryptToSelfKeys; // encryption to self
607
608 std::vector<Item> mPrimaryEncryptionKeys; // encryption to To/CC
609 std::vector<Item> mSecondaryEncryptionKeys; // encryption to BCC
610
611 std::map<CryptoMessageFormat, FormatInfo> mFormatInfoMap;
612
613 // key=email address, value=crypto preferences for this contact (from kabc)
614 using ContactPreferencesMap = std::map<QString, MessageComposer::ContactPreference>;
615 ContactPreferencesMap mContactPreferencesMap;
616 std::map<QByteArray, QString> mAutocryptMap;
617 std::shared_ptr<Kleo::ExpiryChecker> expiryChecker;
618};
619
620KeyResolver::KeyResolver(bool encToSelf, bool showApproval, bool oppEncryption, unsigned int f, const std::shared_ptr<Kleo::ExpiryChecker> &expiryChecker)
621 : d(new KeyResolverPrivate)
622 , mEncryptToSelf(encToSelf)
623 , mShowApprovalDialog(showApproval)
624 , mOpportunisticEncyption(oppEncryption)
625 , mCryptoMessageFormats(f)
626{
627 d->expiryChecker = expiryChecker;
628}
629
630KeyResolver::~KeyResolver() = default;
631
632ResolverResult KeyResolver::setEncryptToSelfKeys(const QStringList &fingerprints)
633{
634 if (!encryptToSelf()) {
635 return Ok;
636 }
637
638 std::vector<GpgME::Key> keys = lookup(fingerprints);
639 std::remove_copy_if(keys.begin(), keys.end(), std::back_inserter(d->mOpenPGPEncryptToSelfKeys),
640 NotValidTrustedOpenPGPEncryptionKey); // -= trusted?
641 std::remove_copy_if(keys.begin(), keys.end(), std::back_inserter(d->mSMIMEEncryptToSelfKeys),
642 NotValidTrustedSMIMEEncryptionKey); // -= trusted?
643
644 if (d->mOpenPGPEncryptToSelfKeys.size() + d->mSMIMEEncryptToSelfKeys.size() < keys.size()) {
645 // too few keys remain...
646 const QString msg = i18n(
647 "One or more of your configured OpenPGP encryption "
648 "keys or S/MIME certificates is not usable for "
649 "encryption. Please reconfigure your encryption keys "
650 "and certificates for this identity in the identity "
651 "configuration dialog.\n"
652 "If you choose to continue, and the keys are needed "
653 "later on, you will be prompted to specify the keys "
654 "to use.");
655 return KMessageBox::warningContinueCancel(nullptr,
656 msg,
657 i18nc("@title:window", "Unusable Encryption Keys"),
658 KStandardGuiItem::cont(),
659 KStandardGuiItem::cancel(),
660 QStringLiteral("unusable own encryption key warning"))
661 == KMessageBox::Continue
662 ? Ok
663 : Canceled;
664 }
665
666 // check for near-expiry:
667 std::vector<GpgME::Key>::const_iterator end(d->mOpenPGPEncryptToSelfKeys.end());
668
669 for (auto it = d->mOpenPGPEncryptToSelfKeys.begin(); it != end; ++it) {
670 d->expiryChecker->checkKey(*it, Kleo::ExpiryChecker::OwnEncryptionKey);
671 }
672 std::vector<GpgME::Key>::const_iterator end2(d->mSMIMEEncryptToSelfKeys.end());
673 for (auto it = d->mSMIMEEncryptToSelfKeys.begin(); it != end2; ++it) {
674 d->expiryChecker->checkKey(*it, Kleo::ExpiryChecker::OwnEncryptionKey);
675 }
676
677 return Ok;
678}
679
680ResolverResult KeyResolver::setSigningKeys(const QStringList &fingerprints)
681{
682 std::vector<GpgME::Key> keys = lookup(fingerprints, true); // secret keys
683 std::remove_copy_if(keys.begin(), keys.end(), std::back_inserter(d->mOpenPGPSigningKeys), NotValidOpenPGPSigningKey);
684 std::remove_copy_if(keys.begin(), keys.end(), std::back_inserter(d->mSMIMESigningKeys), NotValidSMIMESigningKey);
685
686 if (d->mOpenPGPSigningKeys.size() + d->mSMIMESigningKeys.size() < keys.size()) {
687 // too few keys remain...
688 const QString msg = i18n(
689 "One or more of your configured OpenPGP signing keys "
690 "or S/MIME signing certificates is not usable for "
691 "signing. Please reconfigure your signing keys "
692 "and certificates for this identity in the identity "
693 "configuration dialog.\n"
694 "If you choose to continue, and the keys are needed "
695 "later on, you will be prompted to specify the keys "
696 "to use.");
697 return KMessageBox::warningContinueCancel(nullptr,
698 msg,
699 i18nc("@title:window", "Unusable Signing Keys"),
700 KStandardGuiItem::cont(),
701 KStandardGuiItem::cancel(),
702 QStringLiteral("unusable signing key warning"))
703 == KMessageBox::Continue
704 ? Ok
705 : Canceled;
706 }
707
708 // check for near expiry:
709
710 for (auto it = d->mOpenPGPSigningKeys.begin(), total = d->mOpenPGPSigningKeys.end(); it != total; ++it) {
711 d->expiryChecker->checkKey(*it, Kleo::ExpiryChecker::OwnSigningKey);
712 }
713
714 for (auto it = d->mSMIMESigningKeys.begin(), total = d->mSMIMESigningKeys.end(); it != total; ++it) {
715 d->expiryChecker->checkKey(*it, Kleo::ExpiryChecker::OwnSigningKey);
716 }
717
718 return Ok;
719}
720
721void KeyResolver::setPrimaryRecipients(const QStringList &addresses)
722{
723 d->mPrimaryEncryptionKeys = getEncryptionItems(addresses);
724}
725
726void KeyResolver::setSecondaryRecipients(const QStringList &addresses)
727{
728 d->mSecondaryEncryptionKeys = getEncryptionItems(addresses);
729}
730
731std::vector<KeyResolver::Item> KeyResolver::getEncryptionItems(const QStringList &addresses)
732{
733 std::vector<Item> items;
734 items.reserve(addresses.size());
735 QStringList::const_iterator end(addresses.constEnd());
736 for (QStringList::const_iterator it = addresses.constBegin(); it != end; ++it) {
737 QString addr = canonicalAddress(*it).toLower();
738 const auto pref = lookupContactPreferences(addr);
739
740 items.emplace_back(*it, /*getEncryptionKeys( *it, true ),*/
741 pref.encryptionPreference,
742 pref.signingPreference,
743 pref.cryptoMessageFormat);
744 }
745 return items;
746}
747
748static Kleo::Action action(bool doit, bool ask, bool donot, bool requested)
749{
750 if (requested && !donot) {
751 return Kleo::DoIt;
752 }
753 if (doit && !ask && !donot) {
754 return Kleo::DoIt;
755 }
756 if (!doit && ask && !donot) {
757 return Kleo::Ask;
758 }
759 if (!doit && !ask && donot) {
760 return requested ? Kleo::Conflict : Kleo::DontDoIt;
761 }
762 if (!doit && !ask && !donot) {
763 return Kleo::DontDoIt;
764 }
765 return Kleo::Conflict;
766}
767
768Kleo::Action KeyResolver::checkSigningPreferences(bool signingRequested) const
769{
770 if (signingRequested && d->mOpenPGPSigningKeys.empty() && d->mSMIMESigningKeys.empty()) {
771 return Impossible;
772 }
773
774 SigningPreferenceCounter count;
775 count = std::for_each(d->mPrimaryEncryptionKeys.begin(), d->mPrimaryEncryptionKeys.end(), count);
776 count = std::for_each(d->mSecondaryEncryptionKeys.begin(), d->mSecondaryEncryptionKeys.end(), count);
777
778 unsigned int sign = count.numAlwaysSign();
779 unsigned int ask = count.numAlwaysAskForSigning();
780 const unsigned int dontSign = count.numNeverSign();
781 if (signingPossible()) {
782 sign += count.numAlwaysSignIfPossible();
783 ask += count.numAskSigningWheneverPossible();
784 }
785
786 return action(sign, ask, dontSign, signingRequested);
787}
788
789bool KeyResolver::signingPossible() const
790{
791 return !d->mOpenPGPSigningKeys.empty() || !d->mSMIMESigningKeys.empty();
792}
793
794Kleo::Action KeyResolver::checkEncryptionPreferences(bool encryptionRequested) const
795{
796 if (d->mPrimaryEncryptionKeys.empty() && d->mSecondaryEncryptionKeys.empty()) {
797 return DontDoIt;
798 }
799
800 if (encryptionRequested && encryptToSelf() && d->mOpenPGPEncryptToSelfKeys.empty() && d->mSMIMEEncryptToSelfKeys.empty()) {
801 return Impossible;
802 }
803
804 if (!encryptionRequested && !mOpportunisticEncyption) {
805 // try to minimize crypto ops (including key lookups) by only
806 // looking up keys when at least one of the encryption
807 // preferences needs it:
808 EncryptionPreferenceCounter count(nullptr, UnknownPreference);
809 count.process(d->mPrimaryEncryptionKeys);
810 count.process(d->mSecondaryEncryptionKeys);
811 if (!count.numAlwaysEncrypt()
812 && !count.numAlwaysAskForEncryption() // this guy might not need a lookup, when declined, but it's too complex to implement that here
813 && !count.numAlwaysEncryptIfPossible() && !count.numAskWheneverPossible()) {
814 return DontDoIt;
815 }
816 }
817
818 EncryptionPreferenceCounter count(this, mOpportunisticEncyption ? AskWheneverPossible : UnknownPreference);
819 count = std::for_each(d->mPrimaryEncryptionKeys.begin(), d->mPrimaryEncryptionKeys.end(), count);
820 count = std::for_each(d->mSecondaryEncryptionKeys.begin(), d->mSecondaryEncryptionKeys.end(), count);
821
822 unsigned int encrypt = count.numAlwaysEncrypt();
823 unsigned int ask = count.numAlwaysAskForEncryption();
824 const unsigned int dontEncrypt = count.numNeverEncrypt() + count.numNoKey();
825 if (encryptionPossible()) {
826 encrypt += count.numAlwaysEncryptIfPossible();
827 ask += count.numAskWheneverPossible();
828 }
829
830 const Action act = action(encrypt, ask, dontEncrypt, encryptionRequested);
831 if (act != Ask
832 || std::for_each(
833 d->mPrimaryEncryptionKeys.begin(),
834 d->mPrimaryEncryptionKeys.end(),
835 std::for_each(d->mSecondaryEncryptionKeys.begin(), d->mSecondaryEncryptionKeys.end(), EncryptionPreferenceCounter(this, UnknownPreference)))
836 .numAlwaysAskForEncryption()) {
837 return act;
838 } else {
839 return AskOpportunistic;
840 }
841}
842
843bool KeyResolver::encryptionPossible() const
844{
845 return std::none_of(d->mPrimaryEncryptionKeys.begin(), d->mPrimaryEncryptionKeys.end(), EmptyKeyList)
846 && std::none_of(d->mSecondaryEncryptionKeys.begin(), d->mSecondaryEncryptionKeys.end(), EmptyKeyList);
847}
848
849ResolverResult KeyResolver::resolveAllKeys(bool &signingRequested, bool &encryptionRequested)
850{
851 if (!encryptionRequested && !signingRequested) {
852 // make a dummy entry with all recipients, but no signing or
853 // encryption keys to avoid special-casing on the caller side:
854 dump();
855 d->mFormatInfoMap[OpenPGPMIMEFormat].splitInfos.emplace_back(allRecipients());
856 dump();
857 return Ok;
858 }
859 ResolverResult result = Ok;
860 if (encryptionRequested) {
861 bool finalySendUnencrypted = false;
862 result = resolveEncryptionKeys(signingRequested, finalySendUnencrypted);
863 if (finalySendUnencrypted) {
864 encryptionRequested = false;
865 }
866 }
867 if (result != Ok) {
868 return result;
869 }
870 if (encryptionRequested) {
871 result = resolveSigningKeysForEncryption();
872 } else {
873 result = resolveSigningKeysForSigningOnly();
874 if (result == Failure) {
875 signingRequested = false;
876 return Ok;
877 }
878 }
879 return result;
880}
881
882ResolverResult KeyResolver::resolveEncryptionKeys(bool signingRequested, bool &finalySendUnencrypted)
883{
884 //
885 // 1. Get keys for all recipients:
886 //
887 qCDebug(MESSAGECOMPOSER_LOG) << "resolving enc keys" << d->mPrimaryEncryptionKeys.size();
888 for (auto it = d->mPrimaryEncryptionKeys.begin(); it != d->mPrimaryEncryptionKeys.end(); ++it) {
889 qCDebug(MESSAGECOMPOSER_LOG) << "checking primary:" << it->address;
890 if (!it->needKeys) {
891 continue;
892 }
893 it->keys = getEncryptionKeys(it->address, false);
894 qCDebug(MESSAGECOMPOSER_LOG) << "got # keys:" << it->keys.size();
895 if (it->keys.empty()) {
896 return Canceled;
897 }
898 QString addr = canonicalAddress(it->address).toLower();
899 const auto pref = lookupContactPreferences(addr);
900 it->pref = pref.encryptionPreference;
901 it->signPref = pref.signingPreference;
902 it->format = pref.cryptoMessageFormat;
903 qCDebug(MESSAGECOMPOSER_LOG) << "set key data:" << int(it->pref) << int(it->signPref) << int(it->format);
904 }
905
906 for (auto it = d->mSecondaryEncryptionKeys.begin(), total = d->mSecondaryEncryptionKeys.end(); it != total; ++it) {
907 if (!it->needKeys) {
908 continue;
909 }
910 it->keys = getEncryptionKeys(it->address, false);
911 if (it->keys.empty()) {
912 return Canceled;
913 }
914 QString addr = canonicalAddress(it->address).toLower();
915 const auto pref = lookupContactPreferences(addr);
916 it->pref = pref.encryptionPreference;
917 it->signPref = pref.signingPreference;
918 it->format = pref.cryptoMessageFormat;
919 }
920
921 // 1a: Present them to the user
922
923 const ResolverResult res = showKeyApprovalDialog(finalySendUnencrypted);
924 if (res != Ok) {
925 return res;
926 }
927
928 //
929 // 2. Check what the primary recipients need
930 //
931
932 // 2a. Try to find a common format for all primary recipients,
933 // else use as many formats as needed
934
935 const EncryptionFormatPreferenceCounter primaryCount =
936 std::for_each(d->mPrimaryEncryptionKeys.begin(), d->mPrimaryEncryptionKeys.end(), EncryptionFormatPreferenceCounter());
937
938 CryptoMessageFormat commonFormat = AutoFormat;
939 for (unsigned int i = 0; i < numConcreteCryptoMessageFormats; ++i) {
940 if (!(concreteCryptoMessageFormats[i] & mCryptoMessageFormats)) {
941 continue;
942 }
943 if (signingRequested && signingKeysFor(concreteCryptoMessageFormats[i]).empty()) {
944 continue;
945 }
946 if (encryptToSelf() && encryptToSelfKeysFor(concreteCryptoMessageFormats[i]).empty()) {
947 continue;
948 }
949 if (primaryCount.numOf(concreteCryptoMessageFormats[i]) == primaryCount.numTotal()) {
950 commonFormat = concreteCryptoMessageFormats[i];
951 break;
952 }
953 }
954 qCDebug(MESSAGECOMPOSER_LOG) << "got commonFormat for primary recipients:" << int(commonFormat);
955 if (commonFormat != AutoFormat) {
956 addKeys(d->mPrimaryEncryptionKeys, commonFormat);
957 } else {
958 addKeys(d->mPrimaryEncryptionKeys);
959 }
960
961 collapseAllSplitInfos(); // these can be encrypted together
962
963 // 2b. Just try to find _something_ for each secondary recipient,
964 // with a preference to a common format (if that exists)
965
966 const EncryptionFormatPreferenceCounter secondaryCount =
967 std::for_each(d->mSecondaryEncryptionKeys.begin(), d->mSecondaryEncryptionKeys.end(), EncryptionFormatPreferenceCounter());
968
969 if (commonFormat != AutoFormat && secondaryCount.numOf(commonFormat) == secondaryCount.numTotal()) {
970 addKeys(d->mSecondaryEncryptionKeys, commonFormat);
971 } else {
972 addKeys(d->mSecondaryEncryptionKeys);
973 }
974
975 // 3. Check for expiry:
976
977 for (unsigned int i = 0; i < numConcreteCryptoMessageFormats; ++i) {
978 const std::vector<SplitInfo> si_list = encryptionItems(concreteCryptoMessageFormats[i]);
979 for (auto sit = si_list.begin(), total = si_list.end(); sit != total; ++sit) {
980 for (auto kit = sit->keys.begin(); kit != sit->keys.end(); ++kit) {
981 d->expiryChecker->checkKey(*kit, Kleo::ExpiryChecker::EncryptionKey);
982 }
983 }
984 }
985
986 // 4. Check that we have the right keys for encryptToSelf()
987
988 if (!encryptToSelf()) {
989 return Ok;
990 }
991
992 // 4a. Check for OpenPGP keys
993
994 qCDebug(MESSAGECOMPOSER_LOG) << "sizes of encryption items:" << encryptionItems(InlineOpenPGPFormat).size() << encryptionItems(OpenPGPMIMEFormat).size()
995 << encryptionItems(SMIMEFormat).size() << encryptionItems(SMIMEOpaqueFormat).size();
996 if (!encryptionItems(InlineOpenPGPFormat).empty() || !encryptionItems(OpenPGPMIMEFormat).empty()) {
997 // need them
998 if (d->mOpenPGPEncryptToSelfKeys.empty()) {
999 const QString msg = i18n(
1000 "Examination of recipient's encryption preferences "
1001 "yielded that the message should be encrypted using "
1002 "OpenPGP, at least for some recipients;\n"
1003 "however, you have not configured valid trusted "
1004 "OpenPGP encryption keys for this identity.\n"
1005 "You may continue without encrypting to yourself, "
1006 "but be aware that you will not be able to read your "
1007 "own messages if you do so.");
1008 if (KMessageBox::warningContinueCancel(nullptr,
1009 msg,
1010 i18nc("@title:window", "Unusable Encryption Keys"),
1011 KStandardGuiItem::cont(),
1012 KStandardGuiItem::cancel(),
1013 QStringLiteral("encrypt-to-self will fail warning"))
1014 == KMessageBox::Cancel) {
1015 return Canceled;
1016 }
1017 // FIXME: Allow selection
1018 }
1019 addToAllSplitInfos(d->mOpenPGPEncryptToSelfKeys, InlineOpenPGPFormat | OpenPGPMIMEFormat);
1020 }
1021
1022 // 4b. Check for S/MIME certs:
1023
1024 if (!encryptionItems(SMIMEFormat).empty() || !encryptionItems(SMIMEOpaqueFormat).empty()) {
1025 // need them
1026 if (d->mSMIMEEncryptToSelfKeys.empty()) {
1027 // don't have one
1028 const QString msg = i18n(
1029 "Examination of recipient's encryption preferences "
1030 "yielded that the message should be encrypted using "
1031 "S/MIME, at least for some recipients;\n"
1032 "however, you have not configured valid "
1033 "S/MIME encryption certificates for this identity.\n"
1034 "You may continue without encrypting to yourself, "
1035 "but be aware that you will not be able to read your "
1036 "own messages if you do so.");
1037 if (KMessageBox::warningContinueCancel(nullptr,
1038 msg,
1039 i18nc("@title:window", "Unusable Encryption Keys"),
1040 KStandardGuiItem::cont(),
1041 KStandardGuiItem::cancel(),
1042 QStringLiteral("encrypt-to-self will fail warning"))
1043 == KMessageBox::Cancel) {
1044 return Canceled;
1045 }
1046 // FIXME: Allow selection
1047 }
1048 addToAllSplitInfos(d->mSMIMEEncryptToSelfKeys, SMIMEFormat | SMIMEOpaqueFormat);
1049 }
1050
1051 // FIXME: Present another message if _both_ OpenPGP and S/MIME keys
1052 // are missing.
1053
1054 return Ok;
1055}
1056
1057ResolverResult KeyResolver::resolveSigningKeysForEncryption()
1058{
1059 if ((!encryptionItems(InlineOpenPGPFormat).empty() || !encryptionItems(OpenPGPMIMEFormat).empty()) && d->mOpenPGPSigningKeys.empty()) {
1060 const QString msg = i18n(
1061 "Examination of recipient's signing preferences "
1062 "yielded that the message should be signed using "
1063 "OpenPGP, at least for some recipients;\n"
1064 "however, you have not configured valid "
1065 "OpenPGP signing certificates for this identity.");
1066 if (KMessageBox::warningContinueCancel(nullptr,
1067 msg,
1068 i18nc("@title:window", "Unusable Signing Keys"),
1069 KGuiItem(i18nc("@action:button", "Do Not OpenPGP-Sign")),
1070 KStandardGuiItem::cancel(),
1071 QStringLiteral("signing will fail warning"))
1072 == KMessageBox::Cancel) {
1073 return Canceled;
1074 }
1075 // FIXME: Allow selection
1076 }
1077 if ((!encryptionItems(SMIMEFormat).empty() || !encryptionItems(SMIMEOpaqueFormat).empty()) && d->mSMIMESigningKeys.empty()) {
1078 const QString msg = i18n(
1079 "Examination of recipient's signing preferences "
1080 "yielded that the message should be signed using "
1081 "S/MIME, at least for some recipients;\n"
1082 "however, you have not configured valid "
1083 "S/MIME signing certificates for this identity.");
1084 if (KMessageBox::warningContinueCancel(nullptr,
1085 msg,
1086 i18nc("@title:window", "Unusable Signing Keys"),
1087 KGuiItem(i18nc("@action:button", "Do Not S/MIME-Sign")),
1088 KStandardGuiItem::cancel(),
1089 QStringLiteral("signing will fail warning"))
1090 == KMessageBox::Cancel) {
1091 return Canceled;
1092 }
1093 // FIXME: Allow selection
1094 }
1095
1096 // FIXME: Present another message if _both_ OpenPGP and S/MIME keys
1097 // are missing.
1098
1099 for (auto it = d->mFormatInfoMap.begin(); it != d->mFormatInfoMap.end(); ++it) {
1100 if (!it->second.splitInfos.empty()) {
1101 dump();
1102 it->second.signKeys = signingKeysFor(it->first);
1103 dump();
1104 }
1105 }
1106
1107 return Ok;
1108}
1109
1110ResolverResult KeyResolver::resolveSigningKeysForSigningOnly()
1111{
1112 //
1113 // we don't need to distinguish between primary and secondary
1114 // recipients here:
1115 //
1116 SigningFormatPreferenceCounter count;
1117 count = std::for_each(d->mPrimaryEncryptionKeys.begin(), d->mPrimaryEncryptionKeys.end(), count);
1118 count = std::for_each(d->mSecondaryEncryptionKeys.begin(), d->mSecondaryEncryptionKeys.end(), count);
1119
1120 // try to find a common format that works for all (and that we have signing keys for):
1121
1122 CryptoMessageFormat commonFormat = AutoFormat;
1123
1124 for (unsigned int i = 0; i < numConcreteCryptoMessageFormats; ++i) {
1125 const auto res = concreteCryptoMessageFormats[i];
1126 if (!(mCryptoMessageFormats & res)) {
1127 continue; // skip
1128 }
1129 if (signingKeysFor(res).empty()) {
1130 continue; // skip
1131 }
1132 if (count.numOf(res) == count.numTotal()) {
1133 commonFormat = res;
1134 break;
1135 }
1136 }
1137
1138 if (commonFormat != AutoFormat) { // found
1139 dump();
1140 FormatInfo &fi = d->mFormatInfoMap[commonFormat];
1141 fi.signKeys = signingKeysFor(commonFormat);
1142 fi.splitInfos.resize(1);
1143 fi.splitInfos.front() = SplitInfo(allRecipients());
1144 dump();
1145 return Ok;
1146 }
1147
1148 const QString msg = i18n(
1149 "Examination of recipient's signing preferences "
1150 "showed no common type of signature matching your "
1151 "available signing keys.\n"
1152 "Send message without signing?");
1153 if (KMessageBox::warningContinueCancel(nullptr, msg, i18nc("@title:window", "No signing possible"), KStandardGuiItem::cont()) == KMessageBox::Continue) {
1154 d->mFormatInfoMap[OpenPGPMIMEFormat].splitInfos.emplace_back(allRecipients());
1155 return Failure; // means "Ok, but without signing"
1156 }
1157 return Canceled;
1158}
1159
1160std::vector<GpgME::Key> KeyResolver::signingKeysFor(CryptoMessageFormat f) const
1161{
1162 if (isOpenPGP(f)) {
1163 return d->mOpenPGPSigningKeys;
1164 }
1165 if (isSMIME(f)) {
1166 return d->mSMIMESigningKeys;
1167 }
1168 return {};
1169}
1170
1171std::vector<GpgME::Key> KeyResolver::encryptToSelfKeysFor(CryptoMessageFormat f) const
1172{
1173 if (isOpenPGP(f)) {
1174 return d->mOpenPGPEncryptToSelfKeys;
1175 }
1176 if (isSMIME(f)) {
1177 return d->mSMIMEEncryptToSelfKeys;
1178 }
1179 return {};
1180}
1181
1182QStringList KeyResolver::allRecipients() const
1183{
1184 QStringList result;
1185 std::transform(d->mPrimaryEncryptionKeys.begin(), d->mPrimaryEncryptionKeys.end(), std::back_inserter(result), ItemDotAddress);
1186 std::transform(d->mSecondaryEncryptionKeys.begin(), d->mSecondaryEncryptionKeys.end(), std::back_inserter(result), ItemDotAddress);
1187 return result;
1188}
1189
1190void KeyResolver::collapseAllSplitInfos()
1191{
1192 dump();
1193 for (unsigned int i = 0; i < numConcreteCryptoMessageFormats; ++i) {
1194 auto pos = d->mFormatInfoMap.find(concreteCryptoMessageFormats[i]);
1195 if (pos == d->mFormatInfoMap.end()) {
1196 continue;
1197 }
1198 std::vector<SplitInfo> &v = pos->second.splitInfos;
1199 if (v.size() < 2) {
1200 continue;
1201 }
1202 SplitInfo &si = v.front();
1203 for (auto it = v.begin() + 1; it != v.end(); ++it) {
1204 si.keys.insert(si.keys.end(), it->keys.begin(), it->keys.end());
1205 std::copy(it->recipients.begin(), it->recipients.end(), std::back_inserter(si.recipients));
1206 }
1207 v.resize(1);
1208 }
1209 dump();
1210}
1211
1212void KeyResolver::addToAllSplitInfos(const std::vector<GpgME::Key> &keys, unsigned int f)
1213{
1214 dump();
1215 if (!f || keys.empty()) {
1216 return;
1217 }
1218 for (unsigned int i = 0; i < numConcreteCryptoMessageFormats; ++i) {
1219 if (!(f & concreteCryptoMessageFormats[i])) {
1220 continue;
1221 }
1222 auto pos = d->mFormatInfoMap.find(concreteCryptoMessageFormats[i]);
1223 if (pos == d->mFormatInfoMap.end()) {
1224 continue;
1225 }
1226 std::vector<SplitInfo> &v = pos->second.splitInfos;
1227 for (auto it = v.begin(); it != v.end(); ++it) {
1228 it->keys.insert(it->keys.end(), keys.begin(), keys.end());
1229 }
1230 }
1231 dump();
1232}
1233
1234void KeyResolver::dump() const
1235{
1236#ifndef NDEBUG
1237 if (d->mFormatInfoMap.empty()) {
1238 qCDebug(MESSAGECOMPOSER_LOG) << "Keyresolver: Format info empty";
1239 }
1240 for (auto it = d->mFormatInfoMap.begin(); it != d->mFormatInfoMap.end(); ++it) {
1241 qCDebug(MESSAGECOMPOSER_LOG) << "Format info for " << Kleo::cryptoMessageFormatToString(it->first) << ": Signing keys: ";
1242 for (auto sit = it->second.signKeys.begin(); sit != it->second.signKeys.end(); ++sit) {
1243 qCDebug(MESSAGECOMPOSER_LOG) << " " << sit->shortKeyID() << " ";
1244 }
1245 unsigned int i = 0;
1246 for (auto sit = it->second.splitInfos.begin(), sitEnd = it->second.splitInfos.end(); sit != sitEnd; ++sit, ++i) {
1247 qCDebug(MESSAGECOMPOSER_LOG) << " SplitInfo #" << i << " encryption keys: ";
1248 for (auto kit = sit->keys.begin(), sitEnd = sit->keys.end(); kit != sitEnd; ++kit) {
1249 qCDebug(MESSAGECOMPOSER_LOG) << " " << kit->shortKeyID();
1250 }
1251 qCDebug(MESSAGECOMPOSER_LOG) << " SplitInfo #" << i << " recipients: " << qPrintable(sit->recipients.join(QLatin1StringView(", ")));
1252 }
1253 }
1254#endif
1255}
1256
1257ResolverResult KeyResolver::showKeyApprovalDialog(bool &finalySendUnencrypted)
1258{
1259 const bool showKeysForApproval = showApprovalDialog() || std::any_of(d->mPrimaryEncryptionKeys.begin(), d->mPrimaryEncryptionKeys.end(), ApprovalNeeded)
1260 || std::any_of(d->mSecondaryEncryptionKeys.begin(), d->mSecondaryEncryptionKeys.end(), ApprovalNeeded);
1261
1262 if (!showKeysForApproval) {
1263 return Ok;
1264 }
1265
1266 std::vector<Kleo::KeyApprovalDialog::Item> items;
1267 items.reserve(d->mPrimaryEncryptionKeys.size() + d->mSecondaryEncryptionKeys.size());
1268 std::copy(d->mPrimaryEncryptionKeys.begin(), d->mPrimaryEncryptionKeys.end(), std::back_inserter(items));
1269 std::copy(d->mSecondaryEncryptionKeys.begin(), d->mSecondaryEncryptionKeys.end(), std::back_inserter(items));
1270
1271 std::vector<GpgME::Key> senderKeys;
1272 senderKeys.reserve(d->mOpenPGPEncryptToSelfKeys.size() + d->mSMIMEEncryptToSelfKeys.size());
1273 std::copy(d->mOpenPGPEncryptToSelfKeys.begin(), d->mOpenPGPEncryptToSelfKeys.end(), std::back_inserter(senderKeys));
1274 std::copy(d->mSMIMEEncryptToSelfKeys.begin(), d->mSMIMEEncryptToSelfKeys.end(), std::back_inserter(senderKeys));
1275
1276 KCursorSaver saver(Qt::WaitCursor);
1277
1278 QPointer<Kleo::KeyApprovalDialog> dlg = new Kleo::KeyApprovalDialog(items, senderKeys);
1279
1280 if (dlg->exec() == QDialog::Rejected) {
1281 delete dlg;
1282 return Canceled;
1283 }
1284
1285 items = dlg->items();
1286 senderKeys = dlg->senderKeys();
1287 const bool prefsChanged = dlg->preferencesChanged();
1288 delete dlg;
1289
1290 if (prefsChanged) {
1291 for (uint i = 0, total = items.size(); i < total; ++i) {
1292 auto pref = lookupContactPreferences(items[i].address);
1293 pref.encryptionPreference = items[i].pref;
1294 pref.pgpKeyFingerprints.clear();
1295 pref.smimeCertFingerprints.clear();
1296 const std::vector<GpgME::Key> &keys = items[i].keys;
1297 for (auto it = keys.begin(), end = keys.end(); it != end; ++it) {
1298 if (it->protocol() == GpgME::OpenPGP) {
1299 if (const char *fpr = it->primaryFingerprint()) {
1300 pref.pgpKeyFingerprints.push_back(QLatin1StringView(fpr));
1301 }
1302 } else if (it->protocol() == GpgME::CMS) {
1303 if (const char *fpr = it->primaryFingerprint()) {
1304 pref.smimeCertFingerprints.push_back(QLatin1StringView(fpr));
1305 }
1306 }
1307 }
1308 saveContactPreference(items[i].address, pref);
1309 }
1310 }
1311
1312 // show a warning if the user didn't select an encryption key for
1313 // herself:
1314 if (encryptToSelf() && senderKeys.empty()) {
1315 const QString msg = i18n(
1316 "You did not select an encryption key for yourself "
1317 "(encrypt to self). You will not be able to decrypt "
1318 "your own message if you encrypt it.");
1319 if (KMessageBox::warningContinueCancel(nullptr, msg, i18nc("@title:window", "Missing Key Warning"), KGuiItem(i18nc("@action:button", "&Encrypt")))
1320 == KMessageBox::Cancel) {
1321 return Canceled;
1322 } else {
1323 mEncryptToSelf = false;
1324 }
1325 }
1326
1327 // count empty key ID lists
1328 const unsigned int emptyListCount = std::count_if(items.begin(), items.end(), EmptyKeyList);
1329
1330 // show a warning if the user didn't select an encryption key for
1331 // some of the recipients
1332 if (items.size() == emptyListCount) {
1333 const QString msg = (d->mPrimaryEncryptionKeys.size() + d->mSecondaryEncryptionKeys.size() == 1)
1334 ? i18n(
1335 "You did not select an encryption key for the "
1336 "recipient of this message; therefore, the message "
1337 "will not be encrypted.")
1338 : i18n(
1339 "You did not select an encryption key for any of the "
1340 "recipients of this message; therefore, the message "
1341 "will not be encrypted.");
1342 if (KMessageBox::warningContinueCancel(nullptr,
1343 msg,
1344 i18nc("@title:window", "Missing Key Warning"),
1345 KGuiItem(i18nc("@action:button", "Send &Unencrypted")))
1346 == KMessageBox::Cancel) {
1347 return Canceled;
1348 }
1349 finalySendUnencrypted = true;
1350 } else if (emptyListCount > 0) {
1351 const QString msg = (emptyListCount == 1) ? i18n(
1352 "You did not select an encryption key for one of "
1353 "the recipients: this person will not be able to "
1354 "decrypt the message if you encrypt it.")
1355 : i18n(
1356 "You did not select encryption keys for some of "
1357 "the recipients: these persons will not be able to "
1358 "decrypt the message if you encrypt it.");
1359 KCursorSaver saver(Qt::WaitCursor);
1360 if (KMessageBox::warningContinueCancel(nullptr, msg, i18nc("@title:window", "Missing Key Warning"), KGuiItem(i18nc("@action:button", "&Encrypt")))
1361 == KMessageBox::Cancel) {
1362 return Canceled;
1363 }
1364 }
1365
1366 std::transform(d->mPrimaryEncryptionKeys.begin(),
1367 d->mPrimaryEncryptionKeys.end(),
1368 items.begin(),
1369 d->mPrimaryEncryptionKeys.begin(),
1370 CopyKeysAndEncryptionPreferences);
1371 std::transform(d->mSecondaryEncryptionKeys.begin(),
1372 d->mSecondaryEncryptionKeys.end(),
1373 items.begin() + d->mPrimaryEncryptionKeys.size(),
1374 d->mSecondaryEncryptionKeys.begin(),
1375 CopyKeysAndEncryptionPreferences);
1376
1377 d->mOpenPGPEncryptToSelfKeys.clear();
1378 d->mSMIMEEncryptToSelfKeys.clear();
1379
1380 std::remove_copy_if(senderKeys.begin(),
1381 senderKeys.end(),
1382 std::back_inserter(d->mOpenPGPEncryptToSelfKeys),
1383 NotValidTrustedOpenPGPEncryptionKey); // -= trusted (see above, too)?
1384 std::remove_copy_if(senderKeys.begin(),
1385 senderKeys.end(),
1386 std::back_inserter(d->mSMIMEEncryptToSelfKeys),
1387 NotValidTrustedSMIMEEncryptionKey); // -= trusted (see above, too)?
1388
1389 return Ok;
1390}
1391
1392std::vector<KeyResolver::SplitInfo> KeyResolver::encryptionItems(Kleo::CryptoMessageFormat f) const
1393{
1394 dump();
1395 auto it = d->mFormatInfoMap.find(f);
1396 return it != d->mFormatInfoMap.end() ? it->second.splitInfos : std::vector<SplitInfo>();
1397}
1398
1399void KeyResolver::setAutocryptEnabled(bool autocryptEnabled)
1400{
1401 d->mAutocryptEnabled = autocryptEnabled;
1402}
1403
1404std::map<QByteArray, QString> KeyResolver::useAutocrypt() const
1405{
1406 return d->mAutocryptMap;
1407}
1408
1409void KeyResolver::setAkonadiLookupEnabled(bool akonadiLoopkupEnabled)
1410{
1411 d->mAkonadiLookupEnabled = akonadiLoopkupEnabled;
1412}
1413
1414std::vector<GpgME::Key> KeyResolver::signingKeys(CryptoMessageFormat f) const
1415{
1416 dump();
1417 auto it = d->mFormatInfoMap.find(f);
1418 return it != d->mFormatInfoMap.end() ? it->second.signKeys : std::vector<GpgME::Key>();
1419}
1420
1421//
1422//
1423// KeyResolverPrivate helper methods below:
1424//
1425//
1426
1427std::vector<GpgME::Key> KeyResolver::selectKeys(const QString &person, const QString &msg, const std::vector<GpgME::Key> &selectedKeys) const
1428{
1429 const bool opgp = containsOpenPGP(mCryptoMessageFormats);
1430 const bool x509 = containsSMIME(mCryptoMessageFormats);
1431
1432 QPointer<Kleo::KeySelectionDialog> dlg = new Kleo::KeySelectionDialog(
1433 i18n("Encryption Key Selection"),
1434 msg,
1435 KEmailAddress::extractEmailAddress(person),
1436 selectedKeys,
1437 Kleo::KeySelectionDialog::ValidEncryptionKeys & ~(opgp ? 0 : Kleo::KeySelectionDialog::OpenPGPKeys) & ~(x509 ? 0 : Kleo::KeySelectionDialog::SMIMEKeys),
1438 true,
1439 true); // multi-selection and "remember choice" box
1440
1441 if (dlg->exec() != QDialog::Accepted) {
1442 delete dlg;
1443 return {};
1444 }
1445
1446 std::vector<GpgME::Key> keys = dlg->selectedKeys();
1447 keys.erase(std::remove_if(keys.begin(), keys.end(), NotValidEncryptionKey), keys.end());
1448 if (!keys.empty() && dlg->rememberSelection()) {
1449 setKeysForAddress(person, dlg->pgpKeyFingerprints(), dlg->smimeFingerprints());
1450 }
1451
1452 delete dlg;
1453 return keys;
1454}
1455
1456std::vector<GpgME::Key> KeyResolver::getEncryptionKeys(const QString &person, bool quiet) const
1457{
1458 const QString address = canonicalAddress(person).toLower();
1459
1460 // First look for this person's address in the address->key dictionary
1461 const QStringList fingerprints = keysForAddress(address);
1462
1463 if (!fingerprints.empty()) {
1464 qCDebug(MESSAGECOMPOSER_LOG) << "Using encryption keys 0x" << fingerprints.join(QLatin1StringView(", 0x")) << "for" << person;
1465 std::vector<GpgME::Key> keys = lookup(fingerprints);
1466 if (!keys.empty()) {
1467 // Check if all of the keys are trusted and valid encryption keys
1468 if (std::any_of(keys.begin(), keys.end(),
1469 NotValidTrustedEncryptionKey)) { // -= trusted?
1470 // not ok, let the user select: this is not conditional on !quiet,
1471 // since it's a bug in the configuration and the user should be
1472 // notified about it as early as possible:
1473 keys = selectKeys(person,
1474 i18nc("if in your language something like "
1475 "'certificate(s)' is not possible please "
1476 "use the plural in the translation",
1477 "There is a problem with the "
1478 "encryption certificate(s) for \"%1\".\n\n"
1479 "Please re-select the certificate(s) which should "
1480 "be used for this recipient.",
1481 person),
1482 keys);
1483 }
1484 bool canceled = false;
1485 keys = trustedOrConfirmed(keys, address, canceled);
1486 if (canceled) {
1487 return {};
1488 }
1489
1490 if (!keys.empty()) {
1491 return keys;
1492 }
1493 // keys.empty() is considered cancel by callers, so go on
1494 }
1495 }
1496
1497 // Now search all public keys for matching keys
1498 std::vector<GpgME::Key> matchingKeys = lookup(QStringList(address));
1499 matchingKeys.erase(std::remove_if(matchingKeys.begin(), matchingKeys.end(), NotValidEncryptionKey), matchingKeys.end());
1500
1501 if (matchingKeys.empty() && d->mAutocryptEnabled) {
1502 qCDebug(MESSAGECOMPOSER_LOG) << "Search in Autocrypt storage a key for " << address;
1503 const auto storage = MessageCore::AutocryptStorage::self();
1504 const auto recipient = storage->getRecipient(address.toUtf8());
1505 if (recipient) {
1506 const auto key = recipient->gpgKey();
1507 if (!key.isNull() && ValidEncryptionKey(key)) {
1508 qCDebug(MESSAGECOMPOSER_LOG) << "Found an valid autocrypt key.";
1509 matchingKeys.push_back(key);
1510 } else {
1511 const auto gossipKey = recipient->gossipKey();
1512 if (!gossipKey.isNull() && ValidEncryptionKey(gossipKey)) {
1513 qCDebug(MESSAGECOMPOSER_LOG) << "Found an valid autocrypt gossip key.";
1514 matchingKeys.push_back(gossipKey);
1515 }
1516 }
1517 }
1518 // Accept any autocrypt key, as the validility is not used in Autocrypt.
1519 if (matchingKeys.size() == 1) {
1520 if (recipient->prefer_encrypt()) {
1521 d->mContactPreferencesMap[address].encryptionPreference = AlwaysEncryptIfPossible;
1522 }
1523 d->mAutocryptMap[matchingKeys[0].primaryFingerprint()] = address;
1524 return matchingKeys;
1525 }
1526 }
1527
1528 // if called with quite == true (from EncryptionPreferenceCounter), we only want to
1529 // check if there are keys for this recipients, not (yet) their validity, so
1530 // don't show the untrusted encryption key warning in that case
1531 bool canceled = false;
1532 if (!quiet) {
1533 matchingKeys = trustedOrConfirmed(matchingKeys, address, canceled);
1534 }
1535 if (canceled) {
1536 return {};
1537 }
1538 if (quiet || matchingKeys.size() == 1) {
1539 return matchingKeys;
1540 }
1541
1542 // no match until now, or more than one key matches; let the user
1543 // choose the key(s)
1544 // FIXME: let user get the key from keyserver
1545 return trustedOrConfirmed(selectKeys(person,
1546 matchingKeys.empty() ? i18nc("if in your language something like "
1547 "'certificate(s)' is not possible please "
1548 "use the plural in the translation",
1549 "<qt>No valid and trusted encryption certificate was "
1550 "found for \"%1\".<br/><br/>"
1551 "Select the certificate(s) which should "
1552 "be used for this recipient. If there is no suitable certificate in the list "
1553 "you can also search for external certificates by clicking the button: "
1554 "search for external certificates.</qt>",
1555 person.toHtmlEscaped())
1556 : i18nc("if in your language something like "
1557 "'certificate(s)' is not possible please "
1558 "use the plural in the translation",
1559 "More than one certificate matches \"%1\".\n\n"
1560 "Select the certificate(s) which should "
1561 "be used for this recipient.",
1562 person.toHtmlEscaped()),
1563 matchingKeys),
1564 address,
1565 canceled);
1566 // we can ignore 'canceled' here, since trustedOrConfirmed() returns
1567 // an empty vector when canceled == true, and we'd just do the same
1568}
1569
1570std::vector<GpgME::Key> KeyResolver::lookup(const QStringList &patterns, bool secret) const
1571{
1572 if (patterns.empty()) {
1573 return {};
1574 }
1575 qCDebug(MESSAGECOMPOSER_LOG) << "( \"" << patterns.join(QLatin1StringView("\", \"")) << "\"," << secret << ")";
1576 std::vector<GpgME::Key> result;
1577 if (mCryptoMessageFormats & (InlineOpenPGPFormat | OpenPGPMIMEFormat)) {
1578 if (const QGpgME::Protocol *p = QGpgME::openpgp()) {
1579 std::unique_ptr<QGpgME::KeyListJob> job(p->keyListJob(false, false, true)); // use validating keylisting
1580 if (job.get()) {
1581 std::vector<GpgME::Key> keys;
1582 job->exec(patterns, secret, keys);
1583 result.insert(result.end(), keys.begin(), keys.end());
1584 }
1585 }
1586 }
1587 if (mCryptoMessageFormats & (SMIMEFormat | SMIMEOpaqueFormat)) {
1588 if (const QGpgME::Protocol *p = QGpgME::smime()) {
1589 std::unique_ptr<QGpgME::KeyListJob> job(p->keyListJob(false, false, true)); // use validating keylisting
1590 if (job.get()) {
1591 std::vector<GpgME::Key> keys;
1592 job->exec(patterns, secret, keys);
1593 result.insert(result.end(), keys.begin(), keys.end());
1594 }
1595 }
1596 }
1597 qCDebug(MESSAGECOMPOSER_LOG) << " returned" << result.size() << "keys";
1598 return result;
1599}
1600
1601void KeyResolver::addKeys(const std::vector<Item> &items, CryptoMessageFormat f)
1602{
1603 dump();
1604 for (auto it = items.begin(); it != items.end(); ++it) {
1605 SplitInfo si(QStringList(it->address));
1606 std::remove_copy_if(it->keys.begin(), it->keys.end(), std::back_inserter(si.keys), IsNotForFormat(f));
1607 dump();
1608 if (si.keys.empty()) {
1609 qCWarning(MESSAGECOMPOSER_LOG) << "Kleo::KeyResolver::addKeys(): Fix EncryptionFormatPreferenceCounter."
1610 << "It detected a common format, but the list of such keys for recipient \"" << it->address << "\" is empty!";
1611 }
1612 d->mFormatInfoMap[f].splitInfos.push_back(si);
1613 }
1614 dump();
1615}
1616
1617void KeyResolver::addKeys(const std::vector<Item> &items)
1618{
1619 dump();
1620 for (auto it = items.begin(); it != items.end(); ++it) {
1621 SplitInfo si(QStringList(it->address));
1622 CryptoMessageFormat f = AutoFormat;
1623 for (unsigned int i = 0; i < numConcreteCryptoMessageFormats; ++i) {
1624 const CryptoMessageFormat fmt = concreteCryptoMessageFormats[i];
1625 if ((fmt & it->format) && std::any_of(it->keys.begin(), it->keys.end(), IsForFormat(fmt))) {
1626 f = fmt;
1627 break;
1628 }
1629 }
1630 if (f == AutoFormat) {
1631 qCWarning(MESSAGECOMPOSER_LOG) << "Something went wrong. Didn't find a format for \"" << it->address << "\"";
1632 } else {
1633 std::remove_copy_if(it->keys.begin(), it->keys.end(), std::back_inserter(si.keys), IsNotForFormat(f));
1634 }
1635 d->mFormatInfoMap[f].splitInfos.push_back(si);
1636 }
1637 dump();
1638}
1639
1640MessageComposer::ContactPreference KeyResolver::lookupContactPreferences(const QString &address) const
1641{
1642 const auto it = d->mContactPreferencesMap.find(address);
1643 if (it != d->mContactPreferencesMap.end()) {
1644 return it->second;
1645 }
1646
1647 MessageComposer::ContactPreference pref;
1648
1649 if (!d->mAkonadiLookupEnabled) {
1650 return pref;
1651 }
1652
1653 auto job = new Akonadi::ContactSearchJob();
1654 job->setLimit(1);
1655 job->setQuery(Akonadi::ContactSearchJob::Email, address);
1656 job->exec();
1657
1658 const KContacts::Addressee::List res = job->contacts();
1659 if (!res.isEmpty()) {
1660 KContacts::Addressee addr = res.at(0);
1661 pref.fillFromAddressee(addr);
1662 }
1663
1664 const_cast<KeyResolver *>(this)->setContactPreferences(address, pref);
1665
1666 return pref;
1667}
1668
1669void KeyResolver::setContactPreferences(const QString &address, const MessageComposer::ContactPreference &pref)
1670{
1671 d->mContactPreferencesMap.insert(std::make_pair(address, pref));
1672}
1673
1674void KeyResolver::saveContactPreference(const QString &email, const MessageComposer::ContactPreference &pref) const
1675{
1676 d->mContactPreferencesMap.insert(std::make_pair(email, pref));
1677 auto saveContactPreferencesJob = new MessageComposer::SaveContactPreferenceJob(email, pref);
1678 saveContactPreferencesJob->start();
1679}
1680
1681QStringList KeyResolver::keysForAddress(const QString &address) const
1682{
1683 if (address.isEmpty()) {
1684 return {};
1685 }
1686 const QString addr = canonicalAddress(address).toLower();
1687 const auto pref = lookupContactPreferences(addr);
1688 return pref.pgpKeyFingerprints + pref.smimeCertFingerprints;
1689}
1690
1691void KeyResolver::setKeysForAddress(const QString &address, const QStringList &pgpKeyFingerprints, const QStringList &smimeCertFingerprints) const
1692{
1693 if (address.isEmpty()) {
1694 return;
1695 }
1696 const QString addr = canonicalAddress(address).toLower();
1697 auto pref = lookupContactPreferences(addr);
1698 pref.pgpKeyFingerprints = pgpKeyFingerprints;
1699 pref.smimeCertFingerprints = smimeCertFingerprints;
1700 saveContactPreference(addr, pref);
1701}
1702
1703bool KeyResolver::encryptToSelf() const
1704{
1705 return mEncryptToSelf;
1706}
1707
1708bool KeyResolver::showApprovalDialog() const
1709{
1710 return mShowApprovalDialog;
1711}
KContacts::Addressee::List
AddresseeList List
Kleo::KeyResolver::KeyResolver
KeyResolver(bool encrypt, bool sign, GpgME::Protocol protocol=GpgME::UnknownProtocol, bool allowMixed=true)
Kleo::KeyResolver::setSigningKeys
void setSigningKeys(const QStringList &fingerprints)
Definition keyresolver.cpp:680
Kleo::KeyResolver::result
Solution result() const
MessageComposer::KeyResolver::setContactPreferences
void setContactPreferences(const QString &address, const ContactPreference &preference)
Sets crypto preferences for given email address.
Definition keyresolver.cpp:1669
MessageComposer::KeyResolver::setPrimaryRecipients
void setPrimaryRecipients(const QStringList &addresses)
Set the list of primary (To/CC) recipient addresses.
Definition keyresolver.cpp:721
MessageComposer::KeyResolver::signingKeys
std::vector< GpgME::Key > signingKeys(Kleo::CryptoMessageFormat f) const
Definition keyresolver.cpp:1414
MessageComposer::KeyResolver::setAkonadiLookupEnabled
void setAkonadiLookupEnabled(bool akonadiLookupEnabled)
Disable ContactSearchJob in KeyResolver.
Definition keyresolver.cpp:1409
MessageComposer::KeyResolver::setEncryptToSelfKeys
ResolverResult setEncryptToSelfKeys(const QStringList &fingerprints)
Set the fingerprints of keys to be used for encrypting to self.
Definition keyresolver.cpp:632
MessageComposer::KeyResolver::resolveAllKeys
ResolverResult resolveAllKeys(bool &signingRequested, bool &encryptionRequested)
Queries the user for missing keys and displays a key approval dialog if needed.
Definition keyresolver.cpp:849
MessageComposer::KeyResolver::setAutocryptEnabled
void setAutocryptEnabled(bool autocryptEnabled)
If Autocrypt keys are used to find valid PGP Keys.
Definition keyresolver.cpp:1399
MessageComposer::KeyResolver::setSecondaryRecipients
void setSecondaryRecipients(const QStringList &addresses)
Set the list of secondary (BCC) recipient addresses.
Definition keyresolver.cpp:726
MessageComposer::KeyResolver::checkEncryptionPreferences
Kleo::Action checkEncryptionPreferences(bool encryptionRequested) const
Determine whether to encrypt or not, depending on the per-recipient encryption preferences,...
Definition keyresolver.cpp:794
MessageComposer::KeyResolver::encryptionItems
std::vector< SplitInfo > encryptionItems(Kleo::CryptoMessageFormat f) const
Definition keyresolver.cpp:1392
MessageComposer::KeyResolver::checkSigningPreferences
Kleo::Action checkSigningPreferences(bool signingRequested) const
Determine whether to sign or not, depending on the per-recipient signing preferences,...
Definition keyresolver.cpp:768
KEmailAddress::extractEmailAddress
KCODECS_EXPORT QByteArray extractEmailAddress(const QByteArray &address)
i18nc
QString i18nc(const char *context, const char *text, const TYPE &arg...)
i18n
QString i18n(const char *text, const TYPE &arg...)
KItinerary::LocationUtil::address
PostalAddress address(const QVariant &location)
KMessageBox::warningContinueCancel
ButtonCode warningContinueCancel(QWidget *parent, const QString &text, const QString &title=QString(), const KGuiItem &buttonContinue=KStandardGuiItem::cont(), const KGuiItem &buttonCancel=KStandardGuiItem::cancel(), const QString &dontAskAgainName=QString(), Options options=Notify)
KStandardGuiItem::cont
KGuiItem cont()
KStandardGuiItem::cancel
KGuiItem cancel()
KStandardShortcut::end
const QList< QKeySequence > & end()
MessageComposer
Simple interface that both EncryptJob and SignEncryptJob implement so the composer can extract some e...
Definition attachmentcontrollerbase.h:27
QList::append
void append(QList< T > &&value)
QList::constBegin
const_iterator constBegin() const const
QList::constEnd
const_iterator constEnd() const const
QList::empty
bool empty() const const
QList::reserve
void reserve(qsizetype size)
QList::size
qsizetype size() const const
QSsl::UnknownProtocol
UnknownProtocol
QString::at
const QChar at(qsizetype position) const const
QString::fromUtf8
QString fromUtf8(QByteArrayView str)
QString::isEmpty
bool isEmpty() const const
QString::toHtmlEscaped
QString toHtmlEscaped() const const
QString::toLower
QString toLower() const const
QStringList::join
QString join(QChar separator) const const
Qt::WaitCursor
WaitCursor
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