Bug Summary

File:home/maarten/src/libreoffice/core/include/rtl/ref.hxx
Warning:line 192, column 9
Use of memory after it is freed

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name iahndl-authentication.cxx -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -mframe-pointer=all -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib64/clang/11.0.0 -D BOOST_ERROR_CODE_HEADER_ONLY -D BOOST_SYSTEM_NO_DEPRECATED -D CPPU_ENV=gcc3 -D LINUX -D OSL_DEBUG_LEVEL=1 -D SAL_LOG_INFO -D SAL_LOG_WARN -D UNIX -D UNX -D X86_64 -D _PTHREADS -D _REENTRANT -D EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -I /home/maarten/src/libreoffice/core/external/boost/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/boost -I /home/maarten/src/libreoffice/core/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include/linux -I /home/maarten/src/libreoffice/core/config_host -I /home/maarten/src/libreoffice/core/uui/inc -I /home/maarten/src/libreoffice/core/workdir/CustomTarget/officecfg/registry -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/udkapi/normal -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/offapi/normal -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10 -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/x86_64-redhat-linux -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/11.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O0 -Wno-missing-braces -std=c++17 -fdeprecated-macro -fdebug-compilation-dir /home/maarten/src/libreoffice/core -ferror-limit 19 -fvisibility hidden -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -debug-info-kind=constructor -analyzer-output=html -faddrsig -o /home/maarten/tmp/wis/scan-build-libreoffice/output/report/2020-10-07-141433-9725-1 -x c++ /home/maarten/src/libreoffice/core/uui/source/iahndl-authentication.cxx

/home/maarten/src/libreoffice/core/uui/source/iahndl-authentication.cxx

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#include <com/sun/star/task/DocumentPasswordRequest.hpp>
21#include <com/sun/star/task/DocumentPasswordRequest2.hpp>
22#include <com/sun/star/task/DocumentMSPasswordRequest.hpp>
23#include <com/sun/star/task/DocumentMSPasswordRequest2.hpp>
24#include <com/sun/star/task/MasterPasswordRequest.hpp>
25#include <com/sun/star/task/XInteractionAbort.hpp>
26#include <com/sun/star/task/XInteractionPassword.hpp>
27#include <com/sun/star/task/XInteractionPassword2.hpp>
28#include <com/sun/star/task/XInteractionRetry.hpp>
29#include <com/sun/star/ucb/XInteractionAuthFallback.hpp>
30#include <com/sun/star/ucb/XInteractionSupplyAuthentication2.hpp>
31#include <com/sun/star/ucb/URLAuthenticationRequest.hpp>
32
33#include <osl/diagnose.h>
34#include <rtl/digest.h>
35#include <rtl/ustrbuf.hxx>
36#include <unotools/resmgr.hxx>
37#include <vcl/errinf.hxx>
38#include <vcl/abstdlg.hxx>
39#include <vcl/svapp.hxx>
40#include <sal/log.hxx>
41
42#include "authfallbackdlg.hxx"
43#include <strings.hrc>
44#include "getcontinuations.hxx"
45#include "passwordcontainer.hxx"
46#include "loginerr.hxx"
47#include "logindlg.hxx"
48#include "masterpasscrtdlg.hxx"
49#include "masterpassworddlg.hxx"
50#include "passworddlg.hxx"
51
52#include "iahndl.hxx"
53
54#include <memory>
55
56using namespace com::sun::star;
57
58namespace {
59
60void
61executeLoginDialog(
62 weld::Window* pParent,
63 LoginErrorInfo & rInfo,
64 OUString const & rRealm)
65{
66 SolarMutexGuard aGuard;
67
68 bool bAccount = (rInfo.GetFlags() & LOGINERROR_FLAG_MODIFY_ACCOUNT1) != 0;
69 bool bSavePassword = rInfo.GetCanRememberPassword();
70 bool bCanUseSysCreds = rInfo.GetCanUseSystemCredentials();
71
72 LoginFlags nFlags = LoginFlags::NONE;
73 if (rInfo.GetErrorText().isEmpty())
74 nFlags |= LoginFlags::NoErrorText;
75 if (!bAccount)
76 nFlags |= LoginFlags::NoAccount;
77 if (!(rInfo.GetFlags() & LOGINERROR_FLAG_MODIFY_USER_NAME2))
78 nFlags |= LoginFlags::UsernameReadonly;
79
80 if (!bSavePassword)
81 nFlags |= LoginFlags::NoSavePassword;
82
83 if (!bCanUseSysCreds)
84 nFlags |= LoginFlags::NoUseSysCreds;
85
86 LoginDialog aDialog(pParent, nFlags, rInfo.GetServer(), rRealm);
87 if (!rInfo.GetErrorText().isEmpty())
88 aDialog.SetErrorText(rInfo.GetErrorText());
89 aDialog.SetName(rInfo.GetUserName());
90 if (bAccount)
91 aDialog.ClearAccount();
92 else
93 aDialog.ClearPassword();
94 aDialog.SetPassword(rInfo.GetPassword());
95
96 if (bSavePassword)
97 {
98 std::locale aLocale(Translate::Create("uui"));
99 aDialog.SetSavePasswordText(
100 Translate::get(rInfo.GetIsRememberPersistent()
101 ? RID_SAVE_PASSWORDreinterpret_cast<char const *>("RID_SAVE_PASSWORD" "\004"
u8"~Remember password")
102 : RID_KEEP_PASSWORDreinterpret_cast<char const *>("RID_KEEP_PASSWORD" "\004"
u8"~Remember password until end of session")
,
103 aLocale));
104
105 aDialog.SetSavePassword(rInfo.GetIsRememberPassword());
106 }
107
108 if ( bCanUseSysCreds )
109 aDialog.SetUseSystemCredentials( rInfo.GetIsUseSystemCredentials() );
110
111 rInfo.SetResult(aDialog.run() == RET_OK ? DialogMask::ButtonsOk :
112 DialogMask::ButtonsCancel);
113 rInfo.SetUserName(aDialog.GetName());
114 rInfo.SetPassword(aDialog.GetPassword());
115 rInfo.SetAccount(aDialog.GetAccount());
116 rInfo.SetIsRememberPassword(aDialog.IsSavePassword());
117
118 if ( bCanUseSysCreds )
119 rInfo.SetIsUseSystemCredentials( aDialog.IsUseSystemCredentials() );
120}
121
122void getRememberModes(
123 uno::Sequence< ucb::RememberAuthentication > const & rRememberModes,
124 ucb::RememberAuthentication & rPreferredMode,
125 ucb::RememberAuthentication & rAlternateMode )
126{
127 sal_Int32 nCount = rRememberModes.getLength();
128 OSL_ENSURE( (nCount > 0) && (nCount < 4),do { if (true && (!((nCount > 0) && (nCount
< 4)))) { sal_detail_logFormat((SAL_DETAIL_LOG_LEVEL_WARN
), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/uui/source/iahndl-authentication.cxx"
":" "129" ": "), "%s", "ucb::RememberAuthentication sequence size mismatch!"
); } } while (false)
129 "ucb::RememberAuthentication sequence size mismatch!" )do { if (true && (!((nCount > 0) && (nCount
< 4)))) { sal_detail_logFormat((SAL_DETAIL_LOG_LEVEL_WARN
), ("legacy.osl"), ("/home/maarten/src/libreoffice/core/uui/source/iahndl-authentication.cxx"
":" "129" ": "), "%s", "ucb::RememberAuthentication sequence size mismatch!"
); } } while (false)
;
130 if ( nCount == 1 )
131 {
132 rPreferredMode = rAlternateMode = rRememberModes[ 0 ];
133 return;
134 }
135 else
136 {
137 bool bHasRememberModeSession = false;
138 bool bHasRememberModePersistent = false;
139
140 for (const auto& rRememberMode : rRememberModes)
141 {
142 switch ( rRememberMode )
143 {
144 case ucb::RememberAuthentication_NO:
145 break;
146 case ucb::RememberAuthentication_SESSION:
147 bHasRememberModeSession = true;
148 break;
149 case ucb::RememberAuthentication_PERSISTENT:
150 bHasRememberModePersistent = true;
151 break;
152 default:
153 SAL_WARN( "uui", "Unsupported RememberAuthentication value" << static_cast<sal_Int32>(rRememberMode) )do { if (true) { switch (sal_detail_log_report(::SAL_DETAIL_LOG_LEVEL_WARN
, "uui")) { case SAL_DETAIL_LOG_ACTION_IGNORE: break; case SAL_DETAIL_LOG_ACTION_LOG
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Unsupported RememberAuthentication value" <<
static_cast<sal_Int32>(rRememberMode)) == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_WARN), ("uui"), ("/home/maarten/src/libreoffice/core/uui/source/iahndl-authentication.cxx"
":" "153" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Unsupported RememberAuthentication value"
<< static_cast<sal_Int32>(rRememberMode)), 0); }
else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Unsupported RememberAuthentication value" <<
static_cast<sal_Int32>(rRememberMode); ::sal::detail::
log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("uui"), ("/home/maarten/src/libreoffice/core/uui/source/iahndl-authentication.cxx"
":" "153" ": "), sal_detail_stream, 0); }; break; case SAL_DETAIL_LOG_ACTION_FATAL
: if (sizeof ::sal::detail::getResult( ::sal::detail::StreamStart
() << "Unsupported RememberAuthentication value" <<
static_cast<sal_Int32>(rRememberMode)) == 1) { ::sal_detail_log
( (::SAL_DETAIL_LOG_LEVEL_WARN), ("uui"), ("/home/maarten/src/libreoffice/core/uui/source/iahndl-authentication.cxx"
":" "153" ": "), ::sal::detail::unwrapStream( ::sal::detail::
StreamStart() << "Unsupported RememberAuthentication value"
<< static_cast<sal_Int32>(rRememberMode)), 0); }
else { ::std::ostringstream sal_detail_stream; sal_detail_stream
<< "Unsupported RememberAuthentication value" <<
static_cast<sal_Int32>(rRememberMode); ::sal::detail::
log( (::SAL_DETAIL_LOG_LEVEL_WARN), ("uui"), ("/home/maarten/src/libreoffice/core/uui/source/iahndl-authentication.cxx"
":" "153" ": "), sal_detail_stream, 0); }; std::abort(); break
; } } } while (false)
;
154 break;
155 }
156 }
157
158 if (bHasRememberModePersistent)
159 {
160 rPreferredMode = ucb::RememberAuthentication_PERSISTENT;
161 if (bHasRememberModeSession)
162 rAlternateMode = ucb::RememberAuthentication_SESSION;
163 else
164 rAlternateMode = ucb::RememberAuthentication_NO;
165 }
166 else
167 {
168 rPreferredMode = ucb::RememberAuthentication_SESSION;
169 rAlternateMode = ucb::RememberAuthentication_NO;
170 }
171 }
172}
173
174void
175handleAuthenticationRequest_(
176 weld::Window * pParent,
177 uno::Reference< task::XInteractionHandler2 > const & xIH,
178 uno::Reference< uno::XComponentContext > const & xContext,
179 ucb::AuthenticationRequest const & rRequest,
180 uno::Sequence< uno::Reference< task::XInteractionContinuation > > const &
181 rContinuations,
182 const OUString & rURL)
183{
184 uno::Reference< task::XInteractionRetry > xRetry;
185 uno::Reference< task::XInteractionAbort > xAbort;
186 uno::Reference< ucb::XInteractionSupplyAuthentication >
187 xSupplyAuthentication;
188 uno::Reference< ucb::XInteractionSupplyAuthentication2 >
189 xSupplyAuthentication2;
190 getContinuations(rContinuations, &xRetry, &xAbort, &xSupplyAuthentication);
191 if (xSupplyAuthentication.is())
192 xSupplyAuthentication2.set(xSupplyAuthentication, uno::UNO_QUERY);
193
194
195 // First, try to obtain credentials from password container service.
196 uui::PasswordContainerHelper aPwContainerHelper(xContext);
197 if (aPwContainerHelper.handleAuthenticationRequest(rRequest,
198 xSupplyAuthentication,
199 rURL,
200 xIH))
201 {
202 xSupplyAuthentication->select();
203 return;
204 }
205
206
207 // Second, try to obtain credentials from user via password dialog.
208 ucb::RememberAuthentication eDefaultRememberMode
209 = ucb::RememberAuthentication_SESSION;
210 ucb::RememberAuthentication ePreferredRememberMode
211 = eDefaultRememberMode;
212 ucb::RememberAuthentication eAlternateRememberMode
213 = ucb::RememberAuthentication_NO;
214
215 if (xSupplyAuthentication.is())
216 {
217 getRememberModes(
218 xSupplyAuthentication->getRememberPasswordModes(
219 eDefaultRememberMode),
220 ePreferredRememberMode,
221 eAlternateRememberMode);
222 }
223
224 bool bCanUseSystemCredentials;
225 sal_Bool bDefaultUseSystemCredentials;
226 if (xSupplyAuthentication2.is())
227 {
228 bCanUseSystemCredentials
229 = xSupplyAuthentication2->canUseSystemCredentials(
230 bDefaultUseSystemCredentials);
231 }
232 else
233 {
234 bCanUseSystemCredentials = false;
235 bDefaultUseSystemCredentials = false;
236 }
237
238 LoginErrorInfo aInfo;
239 aInfo.SetServer(rRequest.ServerName);
240 if (rRequest.HasAccount)
241 aInfo.SetAccount(rRequest.Account);
242 if (rRequest.HasUserName)
243 aInfo.SetUserName(rRequest.UserName);
244 if (rRequest.HasPassword)
245 aInfo.SetPassword(rRequest.Password);
246 aInfo.SetErrorText(rRequest.Diagnostic);
247
248 aInfo.SetCanRememberPassword(
249 ePreferredRememberMode != eAlternateRememberMode);
250 aInfo.SetIsRememberPassword(
251 ePreferredRememberMode == eDefaultRememberMode);
252 aInfo.SetIsRememberPersistent(
253 ePreferredRememberMode == ucb::RememberAuthentication_PERSISTENT);
254
255 aInfo.SetCanUseSystemCredentials(bCanUseSystemCredentials);
256 aInfo.SetIsUseSystemCredentials( bDefaultUseSystemCredentials );
257 aInfo.SetModifyAccount(rRequest.HasAccount
258 && xSupplyAuthentication.is()
259 && xSupplyAuthentication->canSetAccount());
260 aInfo.SetModifyUserName(rRequest.HasUserName
261 && xSupplyAuthentication.is()
262 && xSupplyAuthentication->canSetUserName());
263 executeLoginDialog(pParent,
264 aInfo,
265 rRequest.HasRealm ? rRequest.Realm : OUString());
266 switch (aInfo.GetResult())
267 {
268 case DialogMask::ButtonsOk:
269 if (xSupplyAuthentication.is())
270 {
271 if (xSupplyAuthentication->canSetUserName())
272 xSupplyAuthentication->setUserName(aInfo.GetUserName());
273 if (xSupplyAuthentication->canSetPassword())
274 xSupplyAuthentication->setPassword(aInfo.GetPassword());
275
276 if (ePreferredRememberMode != eAlternateRememberMode)
277 {
278 // user had the choice.
279 if (aInfo.GetIsRememberPassword())
280 xSupplyAuthentication->setRememberPassword(
281 ePreferredRememberMode);
282 else
283 xSupplyAuthentication->setRememberPassword(
284 eAlternateRememberMode);
285 }
286 else
287 {
288 // user had no choice.
289 xSupplyAuthentication->setRememberPassword(
290 ePreferredRememberMode);
291 }
292
293 if (rRequest.HasRealm)
294 {
295 if (xSupplyAuthentication->canSetRealm())
296 xSupplyAuthentication->setRealm(aInfo.GetAccount());
297 }
298 else if (xSupplyAuthentication->canSetAccount())
299 xSupplyAuthentication->setAccount(aInfo.GetAccount());
300
301 if ( xSupplyAuthentication2.is() && bCanUseSystemCredentials )
302 xSupplyAuthentication2->setUseSystemCredentials(
303 aInfo.GetIsUseSystemCredentials() );
304
305 xSupplyAuthentication->select();
306 }
307
308
309 // Third, store credentials in password container.
310
311 if ( aInfo.GetIsUseSystemCredentials() )
312 {
313 if (aInfo.GetIsRememberPassword())
314 {
315 if (!aPwContainerHelper.addRecord(
316 !rURL.isEmpty() ? rURL : rRequest.ServerName,
317 OUString(), // empty u/p -> sys creds
318 uno::Sequence< OUString >(),
319 xIH,
320 ePreferredRememberMode
321 == ucb::RememberAuthentication_PERSISTENT))
322 {
323 xSupplyAuthentication->setRememberPassword(
324 ucb::RememberAuthentication_NO);
325 }
326 }
327 else if (eAlternateRememberMode
328 == ucb::RememberAuthentication_SESSION)
329 {
330 if (!aPwContainerHelper.addRecord(
331 !rURL.isEmpty() ? rURL : rRequest.ServerName,
332 OUString(), // empty u/p -> sys creds
333 uno::Sequence< OUString >(),
334 xIH,
335 false /* SESSION */))
336 {
337 xSupplyAuthentication->setRememberPassword(
338 ucb::RememberAuthentication_NO);
339 }
340 }
341 }
342 // Empty user name can not be valid:
343 else if (!aInfo.GetUserName().isEmpty())
344 {
345 uno::Sequence< OUString >
346 aPassList(aInfo.GetAccount().isEmpty() ? 1 : 2);
347 aPassList[0] = aInfo.GetPassword();
348 if (!aInfo.GetAccount().isEmpty())
349 aPassList[1] = aInfo.GetAccount();
350
351 if (aInfo.GetIsRememberPassword())
352 {
353 if (!aPwContainerHelper.addRecord(
354 !rURL.isEmpty() ? rURL : rRequest.ServerName,
355 aInfo.GetUserName(),
356 aPassList,
357 xIH,
358 ePreferredRememberMode
359 == ucb::RememberAuthentication_PERSISTENT))
360 {
361 xSupplyAuthentication->setRememberPassword(
362 ucb::RememberAuthentication_NO);
363 }
364 }
365 else if (eAlternateRememberMode
366 == ucb::RememberAuthentication_SESSION)
367 {
368 if (!aPwContainerHelper.addRecord(
369 !rURL.isEmpty() ? rURL : rRequest.ServerName,
370 aInfo.GetUserName(),
371 aPassList,
372 xIH,
373 false /* SESSION */))
374 {
375 xSupplyAuthentication->setRememberPassword(
376 ucb::RememberAuthentication_NO);
377 }
378 }
379 }
380 break;
381
382 case DialogMask::ButtonsRetry:
383 if (xRetry.is())
384 xRetry->select();
385 break;
386
387 default:
388 if (xAbort.is())
389 xAbort->select();
390 break;
391 }
392}
393
394void
395executeMasterPasswordDialog(
396 weld::Window* pParent,
397 LoginErrorInfo & rInfo,
398 task::PasswordRequestMode nMode)
399{
400 OString aMaster;
401 {
402 SolarMutexGuard aGuard;
403
404 std::locale aResLocale(Translate::Create("uui"));
405 if( nMode == task::PasswordRequestMode_PASSWORD_CREATE )
406 {
407 MasterPasswordCreateDialog aDialog(pParent, aResLocale);
408 rInfo.SetResult(aDialog.run()
409 == RET_OK ? DialogMask::ButtonsOk : DialogMask::ButtonsCancel);
410 aMaster = OUStringToOString(
411 aDialog.GetMasterPassword(), RTL_TEXTENCODING_UTF8(((rtl_TextEncoding) 76)));
412 }
413 else
414 {
415 MasterPasswordDialog aDialog(pParent, nMode, aResLocale);
416 rInfo.SetResult(aDialog.run()
417 == RET_OK ? DialogMask::ButtonsOk : DialogMask::ButtonsCancel);
418 aMaster = OUStringToOString(
419 aDialog.GetMasterPassword(), RTL_TEXTENCODING_UTF8(((rtl_TextEncoding) 76)));
420 }
421 }
422
423 sal_uInt8 aKey[RTL_DIGEST_LENGTH_MD516];
424 // FIXME this is subject to the SHA1-bug tdf#114939 - but this
425 // MasterPassword stuff is just stored in the UserInstallation,
426 // so no interop concerns
427 rtl_digest_PBKDF2(aKey,
428 RTL_DIGEST_LENGTH_MD516,
429 reinterpret_cast< sal_uInt8 const * >(aMaster.getStr()),
430 aMaster.getLength(),
431 reinterpret_cast< sal_uInt8 const * >(
432 "3B5509ABA6BC42D9A3A1F3DAD49E56A51"),
433 32,
434 1000);
435
436 OUStringBuffer aBuffer;
437 for (sal_uInt8 i : aKey)
438 {
439 aBuffer.append(static_cast< sal_Unicode >('a' + (i >> 4)));
440 aBuffer.append(static_cast< sal_Unicode >('a' + (i & 15)));
441 }
442 rInfo.SetPassword(aBuffer.makeStringAndClear());
443}
444
445void
446handleMasterPasswordRequest_(
447 weld::Window * pParent,
448 task::PasswordRequestMode nMode,
449 uno::Sequence< uno::Reference< task::XInteractionContinuation > > const &
450 rContinuations)
451{
452 uno::Reference< task::XInteractionRetry > xRetry;
453 uno::Reference< task::XInteractionAbort > xAbort;
454 uno::Reference< ucb::XInteractionSupplyAuthentication >
455 xSupplyAuthentication;
456 getContinuations(rContinuations, &xRetry, &xAbort, &xSupplyAuthentication);
457 LoginErrorInfo aInfo;
458
459 // in case of master password a hash code is returned
460 executeMasterPasswordDialog(pParent, aInfo, nMode);
461
462 switch (aInfo.GetResult())
463 {
464 case DialogMask::ButtonsOk:
465 if (xSupplyAuthentication.is())
466 {
467 if (xSupplyAuthentication->canSetPassword())
468 xSupplyAuthentication->setPassword(aInfo.GetPassword());
469 xSupplyAuthentication->select();
470 }
471 break;
472
473 case DialogMask::ButtonsRetry:
474 if (xRetry.is())
475 xRetry->select();
476 break;
477
478 default:
479 if (xAbort.is())
480 xAbort->select();
481 break;
482 }
483}
484
485void
486executePasswordDialog(
487 weld::Window * pParent,
488 LoginErrorInfo & rInfo,
489 task::PasswordRequestMode nMode,
490 const OUString& aDocName,
491 sal_uInt16 nMaxPasswordLen,
492 bool bIsPasswordToModify,
493 bool bIsSimplePasswordRequest )
494{
495 SolarMutexGuard aGuard;
496
497 std::locale aResLocale(Translate::Create("uui"));
498 if( nMode == task::PasswordRequestMode_PASSWORD_CREATE )
9
Assuming 'nMode' is equal to 'PasswordRequestMode_PASSWORD_CREATE'
10
Taking true branch
499 {
500 if (bIsSimplePasswordRequest
10.1
'bIsSimplePasswordRequest' is false
10.1
'bIsSimplePasswordRequest' is false
10.1
'bIsSimplePasswordRequest' is false
10.1
'bIsSimplePasswordRequest' is false
)
11
Taking false branch
501 {
502 std::unique_ptr<PasswordDialog> xDialog(new PasswordDialog(pParent, nMode,
503 aResLocale, aDocName, bIsPasswordToModify, bIsSimplePasswordRequest));
504 xDialog->SetMinLen(0);
505
506 rInfo.SetResult(xDialog->run() == RET_OK ? DialogMask::ButtonsOk : DialogMask::ButtonsCancel);
507 rInfo.SetPassword(xDialog->GetPassword());
508 }
509 else
510 {
511 VclAbstractDialogFactory * pFact = VclAbstractDialogFactory::Create();
512 ScopedVclPtr<AbstractPasswordToOpenModifyDialog> const pDialog(
12
Calling constructor for 'ScopedVclPtr<AbstractPasswordToOpenModifyDialog>'
19
Returning from constructor for 'ScopedVclPtr<AbstractPasswordToOpenModifyDialog>'
513 pFact->CreatePasswordToOpenModifyDialog(pParent, nMaxPasswordLen, bIsPasswordToModify));
20
Calling implicit destructor for 'VclPtr<AbstractPasswordToOpenModifyDialog>'
21
Calling '~Reference'
28
Returning from '~Reference'
29
Returning from destructor for 'VclPtr<AbstractPasswordToOpenModifyDialog>'
514
515 rInfo.SetResult( pDialog->Execute() == RET_OK ? DialogMask::ButtonsOk : DialogMask::ButtonsCancel );
30
Calling 'VclPtr::operator->'
516 rInfo.SetPassword( pDialog->GetPasswordToOpen() );
517 rInfo.SetPasswordToModify( pDialog->GetPasswordToModify() );
518 rInfo.SetRecommendToOpenReadonly( pDialog->IsRecommendToOpenReadonly() );
519 }
520 }
521 else // enter password or reenter password
522 {
523 std::unique_ptr<PasswordDialog> xDialog(new PasswordDialog(pParent, nMode,
524 aResLocale, aDocName, bIsPasswordToModify, bIsSimplePasswordRequest));
525 xDialog->SetMinLen(0);
526
527 rInfo.SetResult(xDialog->run() == RET_OK ? DialogMask::ButtonsOk : DialogMask::ButtonsCancel);
528 rInfo.SetPassword(bIsPasswordToModify ? OUString() : xDialog->GetPassword());
529 rInfo.SetPasswordToModify(bIsPasswordToModify ? xDialog->GetPassword() : OUString());
530 }
531}
532
533void
534handlePasswordRequest_(
535 weld::Window * pParent,
536 task::PasswordRequestMode nMode,
537 uno::Sequence< uno::Reference< task::XInteractionContinuation > > const &
538 rContinuations,
539 const OUString& aDocumentName,
540 sal_uInt16 nMaxPasswordLen,
541 bool bIsPasswordToModify,
542 bool bIsSimplePasswordRequest = false )
543{
544 uno::Reference< task::XInteractionRetry > xRetry;
545 uno::Reference< task::XInteractionAbort > xAbort;
546 uno::Reference< task::XInteractionPassword > xPassword;
547 uno::Reference< task::XInteractionPassword2 > xPassword2;
548 getContinuations(rContinuations, &xRetry, &xAbort, &xPassword2, &xPassword);
549
550 if ( xPassword2.is() && !xPassword.is() )
551 xPassword.set( xPassword2, uno::UNO_QUERY_THROW );
552
553 LoginErrorInfo aInfo;
554
555 executePasswordDialog( pParent, aInfo, nMode,
8
Calling 'executePasswordDialog'
556 aDocumentName, nMaxPasswordLen, bIsPasswordToModify, bIsSimplePasswordRequest );
557
558 switch (aInfo.GetResult())
559 {
560 case DialogMask::ButtonsOk:
561 OSL_ENSURE( !bIsPasswordToModify || xPassword2.is(), "PasswordToModify is requested, but there is no Interaction!" )do { if (true && (!(!bIsPasswordToModify || xPassword2
.is()))) { sal_detail_logFormat((SAL_DETAIL_LOG_LEVEL_WARN), (
"legacy.osl"), ("/home/maarten/src/libreoffice/core/uui/source/iahndl-authentication.cxx"
":" "561" ": "), "%s", "PasswordToModify is requested, but there is no Interaction!"
); } } while (false)
;
562 if (xPassword.is())
563 {
564 if (xPassword2.is())
565 {
566 xPassword2->setPasswordToModify( aInfo.GetPasswordToModify() );
567 xPassword2->setRecommendReadOnly( aInfo.IsRecommendToOpenReadonly() );
568 }
569
570 xPassword->setPassword(aInfo.GetPassword());
571 xPassword->select();
572 }
573 break;
574
575 case DialogMask::ButtonsRetry:
576 if (xRetry.is())
577 xRetry->select();
578 break;
579
580 default:
581 if (xAbort.is())
582 xAbort->select();
583 break;
584 }
585}
586
587} // namespace
588
589bool
590UUIInteractionHelper::handleAuthenticationRequest(
591 uno::Reference< task::XInteractionRequest > const & rRequest)
592{
593 uno::Any aAnyRequest(rRequest->getRequest());
594 uno::Reference<awt::XWindow> xParent = getParentXWindow();
595
596 ucb::URLAuthenticationRequest aURLAuthenticationRequest;
597 if (aAnyRequest >>= aURLAuthenticationRequest)
598 {
599 handleAuthenticationRequest_(Application::GetFrameWeld(xParent),
600 getInteractionHandler(),
601 m_xContext,
602 aURLAuthenticationRequest,
603 rRequest->getContinuations(),
604 aURLAuthenticationRequest.URL);
605 return true;
606 }
607
608 ucb::AuthenticationRequest aAuthenticationRequest;
609 if (aAnyRequest >>= aAuthenticationRequest)
610 {
611 handleAuthenticationRequest_(Application::GetFrameWeld(xParent),
612 getInteractionHandler(),
613 m_xContext,
614 aAuthenticationRequest,
615 rRequest->getContinuations(),
616 OUString());
617 return true;
618 }
619 return false;
620}
621
622bool
623UUIInteractionHelper::handleMasterPasswordRequest(
624 uno::Reference< task::XInteractionRequest > const & rRequest)
625{
626 uno::Any aAnyRequest(rRequest->getRequest());
627
628 task::MasterPasswordRequest aMasterPasswordRequest;
629 if (aAnyRequest >>= aMasterPasswordRequest)
630 {
631 uno::Reference<awt::XWindow> xParent = getParentXWindow();
632
633 handleMasterPasswordRequest_(Application::GetFrameWeld(xParent),
634 aMasterPasswordRequest.Mode,
635 rRequest->getContinuations());
636 return true;
637 }
638 return false;
639}
640
641bool
642UUIInteractionHelper::handlePasswordRequest(
643 uno::Reference< task::XInteractionRequest > const & rRequest)
644{
645 // parameters to be filled for the call to handlePasswordRequest_
646 uno::Reference<awt::XWindow> xParent = getParentXWindow();
647 task::PasswordRequestMode nMode = task::PasswordRequestMode_PASSWORD_ENTER;
648 uno::Sequence< uno::Reference< task::XInteractionContinuation > > const & rContinuations = rRequest->getContinuations();
649 OUString aDocumentName;
650 sal_uInt16 nMaxPasswordLen = 0; // any length
651 bool bIsPasswordToModify = false;
652
653 bool bDoHandleRequest = false;
654
655 uno::Any aAnyRequest(rRequest->getRequest());
656
657 do
658 {
659 task::DocumentPasswordRequest2 aDocumentPasswordRequest2;
660 if (aAnyRequest >>= aDocumentPasswordRequest2)
1
Assuming the condition is false
2
Taking false branch
661 {
662 nMode = aDocumentPasswordRequest2.Mode;
663 aDocumentName = aDocumentPasswordRequest2.Name;
664 bIsPasswordToModify = aDocumentPasswordRequest2.IsRequestPasswordToModify;
665
666 bDoHandleRequest = true;
667 break; // do
668 }
669
670 task::DocumentPasswordRequest aDocumentPasswordRequest;
671 if (aAnyRequest >>= aDocumentPasswordRequest)
3
Assuming the condition is true
4
Taking true branch
672 {
673 nMode = aDocumentPasswordRequest.Mode;
674 aDocumentName = aDocumentPasswordRequest.Name;
675
676 bDoHandleRequest = true;
677 break; // do
5
Execution continues on line 705
678 }
679
680 task::DocumentMSPasswordRequest2 aDocumentMSPasswordRequest2;
681 if (aAnyRequest >>= aDocumentMSPasswordRequest2)
682 {
683 nMode = aDocumentMSPasswordRequest2.Mode;
684 aDocumentName = aDocumentMSPasswordRequest2.Name;
685 nMaxPasswordLen = 15;
686 bIsPasswordToModify = aDocumentMSPasswordRequest2.IsRequestPasswordToModify;
687
688 bDoHandleRequest = true;
689 break; // do
690 }
691
692 task::DocumentMSPasswordRequest aDocumentMSPasswordRequest;
693 if (aAnyRequest >>= aDocumentMSPasswordRequest)
694 {
695 nMode = aDocumentMSPasswordRequest.Mode;
696 aDocumentName = aDocumentMSPasswordRequest.Name;
697 nMaxPasswordLen = 15;
698
699 bDoHandleRequest = true;
700 break; // do
701 }
702 }
703 while (false);
704
705 if (bDoHandleRequest
5.1
'bDoHandleRequest' is true
5.1
'bDoHandleRequest' is true
5.1
'bDoHandleRequest' is true
5.1
'bDoHandleRequest' is true
)
6
Taking true branch
706 {
707 handlePasswordRequest_( Application::GetFrameWeld(xParent), nMode, rContinuations,
7
Calling 'handlePasswordRequest_'
708 aDocumentName, nMaxPasswordLen, bIsPasswordToModify );
709 return true;
710 }
711
712 task::PasswordRequest aPasswordRequest;
713 if( aAnyRequest >>= aPasswordRequest )
714 {
715 handlePasswordRequest_(Application::GetFrameWeld(xParent),
716 aPasswordRequest.Mode,
717 rRequest->getContinuations(),
718 OUString(),
719 0 /* sal_uInt16 nMaxPasswordLen */,
720 false /* bool bIsPasswordToModify */,
721 true /* bool bIsSimplePasswordRequest */ );
722 return true;
723 }
724
725 return false;
726}
727
728void
729UUIInteractionHelper::handleAuthFallbackRequest( const OUString & instructions,
730 const OUString & url,
731 uno::Sequence< uno::Reference< task::XInteractionContinuation > > const & rContinuations )
732{
733 uno::Reference<awt::XWindow> xParent = getParentXWindow();
734 AuthFallbackDlg dlg(Application::GetFrameWeld(xParent), instructions, url);
735 int retCode = dlg.run();
736 uno::Reference< task::XInteractionAbort > xAbort;
737 uno::Reference< ucb::XInteractionAuthFallback > xAuthFallback;
738 getContinuations(rContinuations, &xAbort, &xAuthFallback);
739
740 if( retCode == RET_OK && xAuthFallback.is( ) )
741 {
742 xAuthFallback->setCode(dlg.GetCode());
743 xAuthFallback->select( );
744 }
745}
746
747/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#ifndef INCLUDED_VCL_PTR_HXX
21#define INCLUDED_VCL_PTR_HXX
22
23#include <sal/config.h>
24
25#include <rtl/ref.hxx>
26
27#include <utility>
28#include <type_traits>
29
30#ifdef DBG_UTIL
31#ifndef _WIN32
32#include <vcl/vclmain.hxx>
33#endif
34#endif
35
36class VclReferenceBase;
37
38namespace vcl::detail {
39
40template<typename>
41constexpr bool isIncompleteOrDerivedFromVclReferenceBase(...) { return true; }
42
43template<typename T> constexpr bool isIncompleteOrDerivedFromVclReferenceBase(
44 int (*)[sizeof(T)])
45{ return std::is_base_of<VclReferenceBase, T>::value; }
46
47} // namespace vcl::detail
48
49/**
50 * A thin wrapper around rtl::Reference to implement the acquire and dispose semantics we want for references to vcl::Window subclasses.
51 *
52 * For more details on the design please see vcl/README.lifecycle
53 *
54 * @param reference_type must be a subclass of vcl::Window
55 */
56template <class reference_type>
57class VclPtr
58{
59 static_assert(
60 vcl::detail::isIncompleteOrDerivedFromVclReferenceBase<reference_type>(
61 nullptr),
62 "template argument type must be derived from VclReferenceBase");
63
64 ::rtl::Reference<reference_type> m_rInnerRef;
65
66public:
67 /** Constructor...
68 */
69 VclPtr()
70 : m_rInnerRef()
71 {}
72
73 /** Constructor...
74 */
75 VclPtr (reference_type * pBody)
76 : m_rInnerRef(pBody)
77 {}
78
79 /** Constructor... that doesn't take a ref.
80 */
81 VclPtr (reference_type * pBody, __sal_NoAcquire)
82 : m_rInnerRef(pBody, SAL_NO_ACQUIRE)
83 {}
84
85 /** Up-casting conversion constructor: Copies interface reference.
86
87 Does not work for up-casts to ambiguous bases. For the special case of
88 up-casting to Reference< XInterface >, see the corresponding conversion
89 operator.
90
91 @param rRef another reference
92 */
93 template< class derived_type >
94 VclPtr(
95 const VclPtr< derived_type > & rRef,
96 typename std::enable_if<
97 std::is_base_of<reference_type, derived_type>::value, int>::type
98 = 0 )
99 : m_rInnerRef( static_cast<reference_type*>(rRef) )
100 {
101 }
102
103#if defined(DBG_UTIL) && !defined(_WIN32)
104 virtual ~VclPtr()
105 {
106 assert(m_rInnerRef.get() == nullptr || vclmain::isAlive())(static_cast <bool> (m_rInnerRef.get() == nullptr || vclmain
::isAlive()) ? void (0) : __assert_fail ("m_rInnerRef.get() == nullptr || vclmain::isAlive()"
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 106, __extension__ __PRETTY_FUNCTION__))
;
107 // We can be one of the intermediate counts, but if we are the last
108 // VclPtr keeping this object alive, then something forgot to call dispose().
109 assert((!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1)(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef
->isDisposed() || m_rInnerRef->getRefCount() > 1) &&
"someone forgot to call dispose()") ? void (0) : __assert_fail
("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\""
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 110, __extension__ __PRETTY_FUNCTION__))
110 && "someone forgot to call dispose()")(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef
->isDisposed() || m_rInnerRef->getRefCount() > 1) &&
"someone forgot to call dispose()") ? void (0) : __assert_fail
("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\""
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 110, __extension__ __PRETTY_FUNCTION__))
;
111 }
112 VclPtr(VclPtr const &) = default;
113 VclPtr(VclPtr &&) = default;
114 VclPtr & operator =(VclPtr const &) = default;
115 VclPtr & operator =(VclPtr &&) = default;
116#endif
117
118 /**
119 * A construction helper for VclPtr. Since VclPtr types are created
120 * with a reference-count of one - to help fit into the existing
121 * code-flow; this helps us to construct them easily.
122 *
123 * For more details on the design please see vcl/README.lifecycle
124 *
125 * @tparam reference_type must be a subclass of vcl::Window
126 */
127 template<typename... Arg> [[nodiscard]] static VclPtr< reference_type > Create(Arg &&... arg)
128 {
129 return VclPtr< reference_type >( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE );
130 }
131
132 /** Probably most common used: handle->someBodyOp().
133 */
134 reference_type * operator->() const
135 {
136 return m_rInnerRef.get();
31
Calling 'Reference::get'
137 }
138
139 /** Get the body. Can be used instead of operator->().
140 I.e. handle->someBodyOp() and handle.get()->someBodyOp()
141 are the same.
142 */
143 reference_type * get() const
144 {
145 return m_rInnerRef.get();
146 }
147
148 void set(reference_type *pBody)
149 {
150 m_rInnerRef.set(pBody);
151 }
152
153 void reset(reference_type *pBody)
154 {
155 m_rInnerRef.set(pBody);
156 }
157
158 /** Up-casting copy assignment operator.
159
160 Does not work for up-casts to ambiguous bases.
161
162 @param rRef another reference
163 */
164 template<typename derived_type>
165 typename std::enable_if<
166 std::is_base_of<reference_type, derived_type>::value,
167 VclPtr &>::type
168 operator =(VclPtr<derived_type> const & rRef)
169 {
170 m_rInnerRef.set(rRef.get());
171 return *this;
172 }
173
174 VclPtr & operator =(reference_type * pBody)
175 {
176 m_rInnerRef.set(pBody);
177 return *this;
178 }
179
180 operator reference_type * () const
181 {
182 return m_rInnerRef.get();
183 }
184
185 explicit operator bool () const
186 {
187 return m_rInnerRef.get() != nullptr;
188 }
189
190 void clear()
191 {
192 m_rInnerRef.clear();
193 }
194
195 void reset()
196 {
197 m_rInnerRef.clear();
198 }
199
200 void disposeAndClear()
201 {
202 // hold it alive for the lifetime of this method
203 ::rtl::Reference<reference_type> aTmp(m_rInnerRef);
204 m_rInnerRef.clear(); // we should use some 'swap' method ideally ;-)
205 if (aTmp.get()) {
206 aTmp->disposeOnce();
207 }
208 }
209
210 /** Needed to place VclPtr's into STL collection.
211 */
212 bool operator< (const VclPtr<reference_type> & handle) const
213 {
214 return (m_rInnerRef < handle.m_rInnerRef);
215 }
216}; // class VclPtr
217
218template<typename T1, typename T2>
219inline bool operator ==(VclPtr<T1> const & p1, VclPtr<T2> const & p2) {
220 return p1.get() == p2.get();
221}
222
223template<typename T> inline bool operator ==(VclPtr<T> const & p1, T const * p2)
224{
225 return p1.get() == p2;
226}
227
228template<typename T> inline bool operator ==(VclPtr<T> const & p1, T * p2) {
229 return p1.get() == p2;
230}
231
232template<typename T> inline bool operator ==(T const * p1, VclPtr<T> const & p2)
233{
234 return p1 == p2.get();
235}
236
237template<typename T> inline bool operator ==(T * p1, VclPtr<T> const & p2) {
238 return p1 == p2.get();
239}
240
241template<typename T1, typename T2>
242inline bool operator !=(VclPtr<T1> const & p1, VclPtr<T2> const & p2) {
243 return !(p1 == p2);
244}
245
246template<typename T> inline bool operator !=(VclPtr<T> const & p1, T const * p2)
247{
248 return !(p1 == p2);
249}
250
251template<typename T> inline bool operator !=(VclPtr<T> const & p1, T * p2) {
252 return !(p1 == p2);
253}
254
255template<typename T> inline bool operator !=(T const * p1, VclPtr<T> const & p2)
256{
257 return !(p1 == p2);
258}
259
260template<typename T> inline bool operator !=(T * p1, VclPtr<T> const & p2) {
261 return !(p1 == p2);
262}
263
264/**
265 * A construction helper for a temporary VclPtr. Since VclPtr types
266 * are created with a reference-count of one - to help fit into
267 * the existing code-flow; this helps us to construct them easily.
268 * see also VclPtr::Create and ScopedVclPtr
269 *
270 * For more details on the design please see vcl/README.lifecycle
271 *
272 * @param reference_type must be a subclass of vcl::Window
273 */
274template <class reference_type>
275class SAL_WARN_UNUSED__attribute__((warn_unused)) VclPtrInstance final : public VclPtr<reference_type>
276{
277public:
278 template<typename... Arg> VclPtrInstance(Arg &&... arg)
279 : VclPtr<reference_type>( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE )
280 {
281 }
282
283 /**
284 * Override and disallow this, to prevent people accidentally calling it and actually
285 * getting VclPtr::Create and getting a naked VclPtr<> instance
286 */
287 template<typename... Arg> static VclPtrInstance< reference_type > Create(Arg &&... ) = delete;
288};
289
290template <class reference_type>
291class ScopedVclPtr : public VclPtr<reference_type>
292{
293public:
294 /** Constructor...
295 */
296 ScopedVclPtr()
297 : VclPtr<reference_type>()
298 {}
299
300 /** Constructor
301 */
302 ScopedVclPtr (reference_type * pBody)
303 : VclPtr<reference_type>(pBody)
304 {}
305
306 /** Copy constructor...
307 */
308 ScopedVclPtr (const VclPtr<reference_type> & handle)
309 : VclPtr<reference_type>(handle)
13
Calling implicit copy constructor for 'VclPtr<AbstractPasswordToOpenModifyDialog>'
14
Calling copy constructor for 'Reference<AbstractPasswordToOpenModifyDialog>'
17
Returning from copy constructor for 'Reference<AbstractPasswordToOpenModifyDialog>'
18
Returning from copy constructor for 'VclPtr<AbstractPasswordToOpenModifyDialog>'
310 {}
311
312 /**
313 Assignment that releases the last reference.
314 */
315 void disposeAndReset(reference_type *pBody)
316 {
317 if (pBody != this->get()) {
318 VclPtr<reference_type>::disposeAndClear();
319 VclPtr<reference_type>::set(pBody);
320 }
321 }
322
323 /**
324 Assignment that releases the last reference.
325 */
326 ScopedVclPtr<reference_type>& operator = (reference_type * pBody)
327 {
328 disposeAndReset(pBody);
329 return *this;
330 }
331
332 /** Up-casting conversion constructor: Copies interface reference.
333
334 Does not work for up-casts to ambiguous bases. For the special case of
335 up-casting to Reference< XInterface >, see the corresponding conversion
336 operator.
337
338 @param rRef another reference
339 */
340 template< class derived_type >
341 ScopedVclPtr(
342 const VclPtr< derived_type > & rRef,
343 typename std::enable_if<
344 std::is_base_of<reference_type, derived_type>::value, int>::type
345 = 0 )
346 : VclPtr<reference_type>( rRef )
347 {
348 }
349
350 /** Up-casting assignment operator.
351
352 Does not work for up-casts to ambiguous bases.
353
354 @param rRef another VclPtr
355 */
356 template<typename derived_type>
357 typename std::enable_if<
358 std::is_base_of<reference_type, derived_type>::value,
359 ScopedVclPtr &>::type
360 operator =(VclPtr<derived_type> const & rRef)
361 {
362 disposeAndReset(rRef.get());
363 return *this;
364 }
365
366 /**
367 * Override and disallow this, to prevent people accidentally calling it and actually
368 * getting VclPtr::Create and getting a naked VclPtr<> instance
369 */
370 template<typename... Arg> static ScopedVclPtr< reference_type > Create(Arg &&... ) = delete;
371
372 ~ScopedVclPtr()
373 {
374 VclPtr<reference_type>::disposeAndClear();
375 assert(VclPtr<reference_type>::get() == nullptr)(static_cast <bool> (VclPtr<reference_type>::get(
) == nullptr) ? void (0) : __assert_fail ("VclPtr<reference_type>::get() == nullptr"
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 375, __extension__ __PRETTY_FUNCTION__))
; // make sure there are no lingering references
376 }
377
378private:
379 // Most likely we don't want this default copy-constructor.
380 ScopedVclPtr (const ScopedVclPtr<reference_type> &) = delete;
381 // And certainly we don't want a default assignment operator.
382 ScopedVclPtr<reference_type>& operator = (const ScopedVclPtr<reference_type> &) = delete;
383 // And disallow reset as that doesn't call disposeAndClear on the original reference
384 void reset() = delete;
385 void reset(reference_type *pBody) = delete;
386
387protected:
388 ScopedVclPtr (reference_type * pBody, __sal_NoAcquire)
389 : VclPtr<reference_type>(pBody, SAL_NO_ACQUIRE)
390 {}
391};
392
393/**
394 * A construction helper for ScopedVclPtr. Since VclPtr types are created
395 * with a reference-count of one - to help fit into the existing
396 * code-flow; this helps us to construct them easily.
397 *
398 * For more details on the design please see vcl/README.lifecycle
399 *
400 * @param reference_type must be a subclass of vcl::Window
401 */
402#if defined _MSC_VER
403#pragma warning(push)
404#pragma warning(disable: 4521) // " multiple copy constructors specified"
405#endif
406template <class reference_type>
407class SAL_WARN_UNUSED__attribute__((warn_unused)) ScopedVclPtrInstance final : public ScopedVclPtr<reference_type>
408{
409public:
410 template<typename... Arg> ScopedVclPtrInstance(Arg &&... arg)
411 : ScopedVclPtr<reference_type>( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE )
412 {
413 }
414
415 /**
416 * Override and disallow this, to prevent people accidentally calling it and actually
417 * getting VclPtr::Create and getting a naked VclPtr<> instance
418 */
419 template<typename... Arg> static ScopedVclPtrInstance< reference_type > Create(Arg &&...) = delete;
420
421private:
422 // Prevent the above perfect forwarding ctor from hijacking (accidental)
423 // attempts at ScopedVclPtrInstance copy construction (where the hijacking
424 // would typically lead to somewhat obscure error messages); both non-const
425 // and const variants are needed here, as the ScopedVclPtr base class has a
426 // const--variant copy ctor, so the implicitly declared copy ctor for
427 // ScopedVclPtrInstance would also be the const variant, so non-const copy
428 // construction attempts would be hijacked by the perfect forwarding ctor;
429 // but if we only declared a non-const variant here, the const variant would
430 // no longer be implicitly declared (as there would already be an explicitly
431 // declared copy ctor), so const copy construction attempts would then be
432 // hijacked by the perfect forwarding ctor:
433 ScopedVclPtrInstance(ScopedVclPtrInstance &) = delete;
434 ScopedVclPtrInstance(ScopedVclPtrInstance const &) = delete;
435};
436#if defined _MSC_VER
437#pragma warning(pop)
438#endif
439
440#endif // INCLUDED_VCL_PTR_HXX
441
442/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

/home/maarten/src/libreoffice/core/include/rtl/ref.hxx

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#ifndef INCLUDED_RTL_REF_HXX
21#define INCLUDED_RTL_REF_HXX
22
23#include "sal/config.h"
24
25#include <cassert>
26#include <cstddef>
27#include <functional>
28#ifdef LIBO_INTERNAL_ONLY1
29#include <type_traits>
30#endif
31
32#include "sal/types.h"
33
34namespace rtl
35{
36
37/** Template reference class for reference type.
38*/
39template <class reference_type>
40class Reference
41{
42 /** The <b>reference_type</b> body pointer.
43 */
44 reference_type * m_pBody;
45
46
47public:
48 /** Constructor...
49 */
50 Reference()
51 : m_pBody (NULL__null)
52 {}
53
54
55 /** Constructor...
56 */
57 Reference (reference_type * pBody, __sal_NoAcquire)
58 : m_pBody (pBody)
59 {
60 }
61
62 /** Constructor...
63 */
64 Reference (reference_type * pBody)
65 : m_pBody (pBody)
66 {
67 if (m_pBody)
68 m_pBody->acquire();
69 }
70
71 /** Copy constructor...
72 */
73 Reference (const Reference<reference_type> & handle)
74 : m_pBody (handle.m_pBody)
75 {
76 if (m_pBody)
15
Assuming field 'm_pBody' is non-null
16
Taking true branch
77 m_pBody->acquire();
78 }
79
80#ifdef LIBO_INTERNAL_ONLY1
81 /** Move constructor...
82 */
83 Reference (Reference<reference_type> && handle) noexcept
84 : m_pBody (handle.m_pBody)
85 {
86 handle.m_pBody = nullptr;
87 }
88#endif
89
90#if defined LIBO_INTERNAL_ONLY1
91 /** Up-casting conversion constructor: Copies interface reference.
92
93 Does not work for up-casts to ambiguous bases.
94
95 @param rRef another reference
96 */
97 template< class derived_type >
98 inline Reference(
99 const Reference< derived_type > & rRef,
100 std::enable_if_t<std::is_base_of_v<reference_type, derived_type>, int> = 0 )
101 : m_pBody (rRef.get())
102 {
103 if (m_pBody)
104 m_pBody->acquire();
105 }
106#endif
107
108 /** Destructor...
109 */
110 ~Reference() COVERITY_NOEXCEPT_FALSE
111 {
112 if (m_pBody
21.1
Field 'm_pBody' is non-null
21.1
Field 'm_pBody' is non-null
21.1
Field 'm_pBody' is non-null
21.1
Field 'm_pBody' is non-null
)
22
Taking true branch
113 m_pBody->release();
23
Calling 'VclReferenceBase::release'
27
Returning; memory was released
114 }
115
116 /** Set...
117 Similar to assignment.
118 */
119 Reference<reference_type> &
120 SAL_CALL set (reference_type * pBody)
121 {
122 if (pBody)
123 pBody->acquire();
124 reference_type * const pOld = m_pBody;
125 m_pBody = pBody;
126 if (pOld)
127 pOld->release();
128 return *this;
129 }
130
131 /** Assignment.
132 Unbinds this instance from its body (if bound) and
133 bind it to the body represented by the handle.
134 */
135 Reference<reference_type> &
136 SAL_CALL operator= (const Reference<reference_type> & handle)
137 {
138 return set( handle.m_pBody );
139 }
140
141#ifdef LIBO_INTERNAL_ONLY1
142 /** Assignment.
143 * Unbinds this instance from its body (if bound),
144 * bind it to the body represented by the handle, and
145 * set the body represented by the handle to nullptr.
146 */
147 Reference<reference_type> &
148 operator= (Reference<reference_type> && handle)
149 {
150 // self-movement guts ourself
151 if (m_pBody)
152 m_pBody->release();
153 m_pBody = handle.m_pBody;
154 handle.m_pBody = nullptr;
155 return *this;
156 }
157#endif
158
159 /** Assignment...
160 */
161 Reference<reference_type> &
162 SAL_CALL operator= (reference_type * pBody)
163 {
164 return set( pBody );
165 }
166
167 /** Unbind the body from this handle.
168 Note that for a handle representing a large body,
169 "handle.clear().set(new body());" _might_
170 perform a little bit better than "handle.set(new body());",
171 since in the second case two large objects exist in memory
172 (the old body and the new body).
173 */
174 Reference<reference_type> & SAL_CALL clear()
175 {
176 if (m_pBody)
177 {
178 reference_type * const pOld = m_pBody;
179 m_pBody = NULL__null;
180 pOld->release();
181 }
182 return *this;
183 }
184
185
186 /** Get the body. Can be used instead of operator->().
187 I.e. handle->someBodyOp() and handle.get()->someBodyOp()
188 are the same.
189 */
190 reference_type * SAL_CALL get() const
191 {
192 return m_pBody;
32
Use of memory after it is freed
193 }
194
195
196 /** Probably most common used: handle->someBodyOp().
197 */
198 reference_type * SAL_CALL operator->() const
199 {
200 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 200, __extension__ __PRETTY_FUNCTION__))
;
201 return m_pBody;
202 }
203
204
205 /** Allows (*handle).someBodyOp().
206 */
207 reference_type & SAL_CALL operator*() const
208 {
209 assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 209, __extension__ __PRETTY_FUNCTION__))
;
210 return *m_pBody;
211 }
212
213
214 /** Returns True if the handle does point to a valid body.
215 */
216 bool SAL_CALL is() const
217 {
218 return (m_pBody != NULL__null);
219 }
220
221#if defined LIBO_INTERNAL_ONLY1
222 /** Returns True if the handle does point to a valid body.
223 */
224 explicit operator bool() const
225 {
226 return is();
227 }
228#endif
229
230 /** Returns True if this points to pBody.
231 */
232 bool SAL_CALL operator== (const reference_type * pBody) const
233 {
234 return (m_pBody == pBody);
235 }
236
237
238 /** Returns True if handle points to the same body.
239 */
240 bool
241 SAL_CALL operator== (const Reference<reference_type> & handle) const
242 {
243 return (m_pBody == handle.m_pBody);
244 }
245
246
247 /** Needed to place References into STL collection.
248 */
249 bool
250 SAL_CALL operator!= (const Reference<reference_type> & handle) const
251 {
252 return (m_pBody != handle.m_pBody);
253 }
254
255
256 /** Needed to place References into STL collection.
257 */
258 bool
259 SAL_CALL operator< (const Reference<reference_type> & handle) const
260 {
261 return (m_pBody < handle.m_pBody);
262 }
263
264
265 /** Needed to place References into STL collection.
266 */
267 bool
268 SAL_CALL operator> (const Reference<reference_type> & handle) const
269 {
270 return (m_pBody > handle.m_pBody);
271 }
272};
273
274} // namespace rtl
275
276#if defined LIBO_INTERNAL_ONLY1
277namespace std
278{
279
280/// @cond INTERNAL
281/**
282 Make rtl::Reference hashable by default for use in STL containers.
283
284 @since LibreOffice 6.3
285*/
286template<typename T>
287struct hash<::rtl::Reference<T>>
288{
289 std::size_t operator()(::rtl::Reference<T> const & s) const
290 { return std::size_t(s.get()); }
291};
292/// @endcond
293
294}
295
296#endif
297
298#endif /* ! INCLUDED_RTL_REF_HXX */
299
300/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

/home/maarten/src/libreoffice/core/include/vcl/vclreferencebase.hxx

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19#ifndef INCLUDED_VCL_Reference_HXX
20#define INCLUDED_VCL_Reference_HXX
21
22#include <vcl/dllapi.h>
23#include <osl/interlck.h>
24
25class VCL_DLLPUBLIC__attribute__ ((visibility("default"))) VclReferenceBase
26{
27 mutable oslInterlockedCount mnRefCnt;
28
29 template<typename T> friend class VclPtr;
30
31public:
32 void acquire() const
33 {
34 osl_atomic_increment(&mnRefCnt)__sync_add_and_fetch((&mnRefCnt), 1);
35 }
36
37 void release() const
38 {
39 if (osl_atomic_decrement(&mnRefCnt)__sync_sub_and_fetch((&mnRefCnt), 1) == 0)
24
Assuming the condition is true
25
Taking true branch
40 delete this;
26
Memory is released
41 }
42#ifdef DBG_UTIL
43#ifndef _WIN32
44 sal_Int32 getRefCount() const { return mnRefCnt; }
45#endif
46#endif
47
48
49private:
50 VclReferenceBase(const VclReferenceBase&) = delete;
51 VclReferenceBase& operator=(const VclReferenceBase&) = delete;
52
53 bool mbDisposed : 1;
54
55protected:
56 VclReferenceBase();
57protected:
58 virtual ~VclReferenceBase();
59
60protected:
61 virtual void dispose();
62
63public:
64 void disposeOnce();
65 bool isDisposed() const { return mbDisposed; }
66
67};
68#endif