]> git.saurik.com Git - wxWidgets.git/blob - src/common/debugrpt.cpp
fixing overrelease and out-of-bounds write, fixes #13725
[wxWidgets.git] / src / common / debugrpt.cpp
1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: src/common/debugrpt.cpp
3 // Purpose: wxDebugReport and related classes implementation
4 // Author: Vadim Zeitlin
5 // Modified by:
6 // Created: 2005-01-17
7 // RCS-ID: $Id$
8 // Copyright: (c) 2005 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
9 // Licence: wxWindows licence
10 ///////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 #include "wx/wxprec.h"
21
22 #ifdef __BORLANDC__
23 #pragma hdrstop
24 #endif
25
26 #ifndef WX_PRECOMP
27 #include "wx/app.h"
28 #include "wx/log.h"
29 #include "wx/intl.h"
30 #include "wx/utils.h"
31 #endif // WX_PRECOMP
32
33 #if wxUSE_DEBUGREPORT && wxUSE_XML
34
35 #include "wx/debugrpt.h"
36
37 #include "wx/ffile.h"
38 #include "wx/filename.h"
39 #include "wx/dir.h"
40 #include "wx/dynlib.h"
41
42 #include "wx/xml/xml.h"
43
44 #if wxUSE_STACKWALKER
45 #include "wx/stackwalk.h"
46 #endif
47
48 #if wxUSE_CRASHREPORT
49 #include "wx/msw/crashrpt.h"
50 #endif
51
52 #if wxUSE_ZIPSTREAM
53 #include "wx/wfstream.h"
54 #include "wx/zipstrm.h"
55 #endif // wxUSE_ZIPSTREAM
56
57 WX_CHECK_BUILD_OPTIONS("wxQA")
58
59 // ----------------------------------------------------------------------------
60 // XmlStackWalker: stack walker specialization which dumps stack in XML
61 // ----------------------------------------------------------------------------
62
63 #if wxUSE_STACKWALKER
64
65 class XmlStackWalker : public wxStackWalker
66 {
67 public:
68 XmlStackWalker(wxXmlNode *nodeStack)
69 {
70 m_isOk = false;
71 m_nodeStack = nodeStack;
72 }
73
74 bool IsOk() const { return m_isOk; }
75
76 protected:
77 virtual void OnStackFrame(const wxStackFrame& frame);
78
79 wxXmlNode *m_nodeStack;
80 bool m_isOk;
81 };
82
83 // ----------------------------------------------------------------------------
84 // local functions
85 // ----------------------------------------------------------------------------
86
87 static inline void
88 HexProperty(wxXmlNode *node, const wxChar *name, unsigned long value)
89 {
90 node->AddAttribute(name, wxString::Format(wxT("%08lx"), value));
91 }
92
93 static inline void
94 NumProperty(wxXmlNode *node, const wxChar *name, unsigned long value)
95 {
96 node->AddAttribute(name, wxString::Format(wxT("%lu"), value));
97 }
98
99 static inline void
100 TextElement(wxXmlNode *node, const wxChar *name, const wxString& value)
101 {
102 wxXmlNode *nodeChild = new wxXmlNode(wxXML_ELEMENT_NODE, name);
103 node->AddChild(nodeChild);
104 nodeChild->AddChild(new wxXmlNode(wxXML_TEXT_NODE, wxEmptyString, value));
105 }
106
107 #if wxUSE_CRASHREPORT && defined(__INTEL__)
108
109 static inline void
110 HexElement(wxXmlNode *node, const wxChar *name, unsigned long value)
111 {
112 TextElement(node, name, wxString::Format(wxT("%08lx"), value));
113 }
114
115 #endif // wxUSE_CRASHREPORT
116
117 // ============================================================================
118 // XmlStackWalker implementation
119 // ============================================================================
120
121 void XmlStackWalker::OnStackFrame(const wxStackFrame& frame)
122 {
123 m_isOk = true;
124
125 wxXmlNode *nodeFrame = new wxXmlNode(wxXML_ELEMENT_NODE, wxT("frame"));
126 m_nodeStack->AddChild(nodeFrame);
127
128 NumProperty(nodeFrame, wxT("level"), frame.GetLevel());
129 wxString func = frame.GetName();
130 if ( !func.empty() )
131 {
132 nodeFrame->AddAttribute(wxT("function"), func);
133 HexProperty(nodeFrame, wxT("offset"), frame.GetOffset());
134 }
135
136 if ( frame.HasSourceLocation() )
137 {
138 nodeFrame->AddAttribute(wxT("file"), frame.GetFileName());
139 NumProperty(nodeFrame, wxT("line"), frame.GetLine());
140 }
141
142 const size_t nParams = frame.GetParamCount();
143 if ( nParams )
144 {
145 wxXmlNode *nodeParams = new wxXmlNode(wxXML_ELEMENT_NODE, wxT("parameters"));
146 nodeFrame->AddChild(nodeParams);
147
148 for ( size_t n = 0; n < nParams; n++ )
149 {
150 wxXmlNode *
151 nodeParam = new wxXmlNode(wxXML_ELEMENT_NODE, wxT("parameter"));
152 nodeParams->AddChild(nodeParam);
153
154 NumProperty(nodeParam, wxT("number"), n);
155
156 wxString type, name, value;
157 if ( !frame.GetParam(n, &type, &name, &value) )
158 continue;
159
160 if ( !type.empty() )
161 TextElement(nodeParam, wxT("type"), type);
162
163 if ( !name.empty() )
164 TextElement(nodeParam, wxT("name"), name);
165
166 if ( !value.empty() )
167 TextElement(nodeParam, wxT("value"), value);
168 }
169 }
170 }
171
172 #endif // wxUSE_STACKWALKER
173
174 // ============================================================================
175 // wxDebugReport implementation
176 // ============================================================================
177
178 // ----------------------------------------------------------------------------
179 // initialization and cleanup
180 // ----------------------------------------------------------------------------
181
182 wxDebugReport::wxDebugReport()
183 {
184 // get a temporary directory name
185 wxString appname = GetReportName();
186
187 // we can't use CreateTempFileName() because it creates a file, not a
188 // directory, so do our best to create a unique name ourselves
189 //
190 // of course, this doesn't protect us against malicious users...
191 wxFileName fn;
192 fn.AssignTempFileName(appname);
193 #if wxUSE_DATETIME
194 m_dir.Printf(wxT("%s%c%s_dbgrpt-%lu-%s"),
195 fn.GetPath().c_str(), wxFILE_SEP_PATH, appname.c_str(),
196 wxGetProcessId(),
197 wxDateTime::Now().Format(wxT("%Y%m%dT%H%M%S")).c_str());
198 #else
199 m_dir.Printf(wxT("%s%c%s_dbgrpt-%lu"),
200 fn.GetPath().c_str(), wxFILE_SEP_PATH, appname.c_str(),
201 wxGetProcessId());
202 #endif
203
204 // as we are going to save the process state there use restrictive
205 // permissions
206 if ( !wxMkdir(m_dir, 0700) )
207 {
208 wxLogSysError(_("Failed to create directory \"%s\""), m_dir.c_str());
209 wxLogError(_("Debug report couldn't be created."));
210
211 Reset();
212 }
213 }
214
215 wxDebugReport::~wxDebugReport()
216 {
217 if ( !m_dir.empty() )
218 {
219 // remove all files in this directory
220 wxDir dir(m_dir);
221 wxString file;
222 for ( bool cont = dir.GetFirst(&file); cont; cont = dir.GetNext(&file) )
223 {
224 if ( wxRemove(wxFileName(m_dir, file).GetFullPath()) != 0 )
225 {
226 wxLogSysError(_("Failed to remove debug report file \"%s\""),
227 file.c_str());
228 m_dir.clear();
229 break;
230 }
231 }
232 }
233
234 if ( !m_dir.empty() )
235 {
236 // Temp fix: what should this be? eVC++ doesn't like wxRmDir
237 #ifdef __WXWINCE__
238 if ( wxRmdir(m_dir.fn_str()) != 0 )
239 #else
240 if ( wxRmDir(m_dir.fn_str()) != 0 )
241 #endif
242 {
243 wxLogSysError(_("Failed to clean up debug report directory \"%s\""),
244 m_dir.c_str());
245 }
246 }
247 }
248
249 // ----------------------------------------------------------------------------
250 // various helpers
251 // ----------------------------------------------------------------------------
252
253 wxString wxDebugReport::GetReportName() const
254 {
255 if ( wxTheApp )
256 return wxTheApp->GetAppName();
257
258 return wxT("wx");
259 }
260
261 void
262 wxDebugReport::AddFile(const wxString& filename, const wxString& description)
263 {
264 wxString name;
265 wxFileName fn(filename);
266 if ( fn.IsAbsolute() )
267 {
268 // we need to copy the file to the debug report directory: give it the
269 // same name there
270 name = fn.GetFullName();
271
272 if (!wxCopyFile(fn.GetFullPath(),
273 wxFileName(GetDirectory(), name).GetFullPath()))
274 return;
275 }
276 else // file relative to the report directory
277 {
278 name = filename;
279
280 wxASSERT_MSG( wxFileName(GetDirectory(), name).FileExists(),
281 wxT("file should exist in debug report directory") );
282 }
283
284 m_files.Add(name);
285 m_descriptions.Add(description);
286 }
287
288 bool
289 wxDebugReport::AddText(const wxString& filename,
290 const wxString& text,
291 const wxString& description)
292 {
293 wxASSERT_MSG( !wxFileName(filename).IsAbsolute(),
294 wxT("filename should be relative to debug report directory") );
295
296 wxFileName fn(GetDirectory(), filename);
297 wxFFile file(fn.GetFullPath(), wxT("w"));
298 if ( !file.IsOpened() || !file.Write(text) )
299 return false;
300
301 AddFile(filename, description);
302
303 return true;
304 }
305
306 void wxDebugReport::RemoveFile(const wxString& name)
307 {
308 const int n = m_files.Index(name);
309 wxCHECK_RET( n != wxNOT_FOUND, wxT("No such file in wxDebugReport") );
310
311 m_files.RemoveAt(n);
312 m_descriptions.RemoveAt(n);
313
314 wxRemove(wxFileName(GetDirectory(), name).GetFullPath());
315 }
316
317 bool wxDebugReport::GetFile(size_t n, wxString *name, wxString *desc) const
318 {
319 if ( n >= m_files.GetCount() )
320 return false;
321
322 if ( name )
323 *name = m_files[n];
324 if ( desc )
325 *desc = m_descriptions[n];
326
327 return true;
328 }
329
330 void wxDebugReport::AddAll(Context context)
331 {
332 #if wxUSE_STACKWALKER
333 AddContext(context);
334 #endif // wxUSE_STACKWALKER
335
336 #if wxUSE_CRASHREPORT
337 AddDump(context);
338 #endif // wxUSE_CRASHREPORT
339
340 #if !wxUSE_STACKWALKER && !wxUSE_CRASHREPORT
341 wxUnusedVar(context);
342 #endif
343 }
344
345 // ----------------------------------------------------------------------------
346 // adding basic text information about current context
347 // ----------------------------------------------------------------------------
348
349 #if wxUSE_STACKWALKER
350
351 bool wxDebugReport::DoAddSystemInfo(wxXmlNode *nodeSystemInfo)
352 {
353 nodeSystemInfo->AddAttribute(wxT("description"), wxGetOsDescription());
354
355 return true;
356 }
357
358 bool wxDebugReport::DoAddLoadedModules(wxXmlNode *nodeModules)
359 {
360 wxDynamicLibraryDetailsArray modules(wxDynamicLibrary::ListLoaded());
361 const size_t count = modules.GetCount();
362 if ( !count )
363 return false;
364
365 for ( size_t n = 0; n < count; n++ )
366 {
367 const wxDynamicLibraryDetails& info = modules[n];
368
369 wxXmlNode *nodeModule = new wxXmlNode(wxXML_ELEMENT_NODE, wxT("module"));
370 nodeModules->AddChild(nodeModule);
371
372 wxString path = info.GetPath();
373 if ( path.empty() )
374 path = info.GetName();
375 if ( !path.empty() )
376 nodeModule->AddAttribute(wxT("path"), path);
377
378 void *addr = NULL;
379 size_t len = 0;
380 if ( info.GetAddress(&addr, &len) )
381 {
382 HexProperty(nodeModule, wxT("address"), wxPtrToUInt(addr));
383 HexProperty(nodeModule, wxT("size"), len);
384 }
385
386 wxString ver = info.GetVersion();
387 if ( !ver.empty() )
388 {
389 nodeModule->AddAttribute(wxT("version"), ver);
390 }
391 }
392
393 return true;
394 }
395
396 bool wxDebugReport::DoAddExceptionInfo(wxXmlNode *nodeContext)
397 {
398 #if wxUSE_CRASHREPORT
399 wxCrashContext c;
400 if ( !c.code )
401 return false;
402
403 wxXmlNode *nodeExc = new wxXmlNode(wxXML_ELEMENT_NODE, wxT("exception"));
404 nodeContext->AddChild(nodeExc);
405
406 HexProperty(nodeExc, wxT("code"), c.code);
407 nodeExc->AddAttribute(wxT("name"), c.GetExceptionString());
408 HexProperty(nodeExc, wxT("address"), wxPtrToUInt(c.addr));
409
410 #ifdef __INTEL__
411 wxXmlNode *nodeRegs = new wxXmlNode(wxXML_ELEMENT_NODE, wxT("registers"));
412 nodeContext->AddChild(nodeRegs);
413 HexElement(nodeRegs, wxT("eax"), c.regs.eax);
414 HexElement(nodeRegs, wxT("ebx"), c.regs.ebx);
415 HexElement(nodeRegs, wxT("ecx"), c.regs.edx);
416 HexElement(nodeRegs, wxT("edx"), c.regs.edx);
417 HexElement(nodeRegs, wxT("esi"), c.regs.esi);
418 HexElement(nodeRegs, wxT("edi"), c.regs.edi);
419
420 HexElement(nodeRegs, wxT("ebp"), c.regs.ebp);
421 HexElement(nodeRegs, wxT("esp"), c.regs.esp);
422 HexElement(nodeRegs, wxT("eip"), c.regs.eip);
423
424 HexElement(nodeRegs, wxT("cs"), c.regs.cs);
425 HexElement(nodeRegs, wxT("ds"), c.regs.ds);
426 HexElement(nodeRegs, wxT("es"), c.regs.es);
427 HexElement(nodeRegs, wxT("fs"), c.regs.fs);
428 HexElement(nodeRegs, wxT("gs"), c.regs.gs);
429 HexElement(nodeRegs, wxT("ss"), c.regs.ss);
430
431 HexElement(nodeRegs, wxT("flags"), c.regs.flags);
432 #endif // __INTEL__
433
434 return true;
435 #else // !wxUSE_CRASHREPORT
436 wxUnusedVar(nodeContext);
437
438 return false;
439 #endif // wxUSE_CRASHREPORT/!wxUSE_CRASHREPORT
440 }
441
442 bool wxDebugReport::AddContext(wxDebugReport::Context ctx)
443 {
444 wxCHECK_MSG( IsOk(), false, wxT("use IsOk() first") );
445
446 // create XML dump of current context
447 wxXmlDocument xmldoc;
448 wxXmlNode *nodeRoot = new wxXmlNode(wxXML_ELEMENT_NODE, wxT("report"));
449 xmldoc.SetRoot(nodeRoot);
450 nodeRoot->AddAttribute(wxT("version"), wxT("1.0"));
451 nodeRoot->AddAttribute(wxT("kind"), ctx == Context_Current ? wxT("user")
452 : wxT("exception"));
453
454 // add system information
455 wxXmlNode *nodeSystemInfo = new wxXmlNode(wxXML_ELEMENT_NODE, wxT("system"));
456 if ( DoAddSystemInfo(nodeSystemInfo) )
457 nodeRoot->AddChild(nodeSystemInfo);
458 else
459 delete nodeSystemInfo;
460
461 // add information about the loaded modules
462 wxXmlNode *nodeModules = new wxXmlNode(wxXML_ELEMENT_NODE, wxT("modules"));
463 if ( DoAddLoadedModules(nodeModules) )
464 nodeRoot->AddChild(nodeModules);
465 else
466 delete nodeModules;
467
468 // add CPU context information: this only makes sense for exceptions as our
469 // current context is not very interesting otherwise
470 if ( ctx == Context_Exception )
471 {
472 wxXmlNode *nodeContext = new wxXmlNode(wxXML_ELEMENT_NODE, wxT("context"));
473 if ( DoAddExceptionInfo(nodeContext) )
474 nodeRoot->AddChild(nodeContext);
475 else
476 delete nodeContext;
477 }
478
479 // add stack traceback
480 #if wxUSE_STACKWALKER
481 wxXmlNode *nodeStack = new wxXmlNode(wxXML_ELEMENT_NODE, wxT("stack"));
482 XmlStackWalker sw(nodeStack);
483 #if wxUSE_ON_FATAL_EXCEPTION
484 if ( ctx == Context_Exception )
485 {
486 sw.WalkFromException();
487 }
488 else // Context_Current
489 #endif // wxUSE_ON_FATAL_EXCEPTION
490 {
491 sw.Walk();
492 }
493
494 if ( sw.IsOk() )
495 nodeRoot->AddChild(nodeStack);
496 else
497 delete nodeStack;
498 #endif // wxUSE_STACKWALKER
499
500 // finally let the user add any extra information he needs
501 DoAddCustomContext(nodeRoot);
502
503
504 // save the entire context dump in a file
505 wxFileName fn(m_dir, GetReportName(), wxT("xml"));
506
507 if ( !xmldoc.Save(fn.GetFullPath()) )
508 return false;
509
510 AddFile(fn.GetFullName(), _("process context description"));
511
512 return true;
513 }
514
515 #endif // wxUSE_STACKWALKER
516
517 // ----------------------------------------------------------------------------
518 // adding core dump
519 // ----------------------------------------------------------------------------
520
521 #if wxUSE_CRASHREPORT
522
523 bool wxDebugReport::AddDump(Context ctx)
524 {
525 wxCHECK_MSG( IsOk(), false, wxT("use IsOk() first") );
526
527 wxFileName fn(m_dir, GetReportName(), wxT("dmp"));
528 wxCrashReport::SetFileName(fn.GetFullPath());
529
530 if ( !(ctx == Context_Exception ? wxCrashReport::Generate()
531 : wxCrashReport::GenerateNow()) )
532 return false;
533
534 AddFile(fn.GetFullName(), _("dump of the process state (binary)"));
535
536 return true;
537 }
538
539 #endif // wxUSE_CRASHREPORT
540
541 // ----------------------------------------------------------------------------
542 // report processing
543 // ----------------------------------------------------------------------------
544
545 bool wxDebugReport::Process()
546 {
547 if ( !GetFilesCount() )
548 {
549 wxLogError(_("Debug report generation has failed."));
550
551 return false;
552 }
553
554 if ( !DoProcess() )
555 {
556 wxLogError(_("Processing debug report has failed, leaving the files in \"%s\" directory."),
557 GetDirectory().c_str());
558
559 Reset();
560
561 return false;
562 }
563
564 return true;
565 }
566
567 bool wxDebugReport::DoProcess()
568 {
569 wxString msg(_("A debug report has been generated. It can be found in"));
570 msg << wxT("\n")
571 wxT("\t") << GetDirectory() << wxT("\n\n")
572 << _("And includes the following files:\n");
573
574 wxString name, desc;
575 const size_t count = GetFilesCount();
576 for ( size_t n = 0; n < count; n++ )
577 {
578 GetFile(n, &name, &desc);
579 msg += wxString::Format("\t%s: %s\n", name, desc);
580 }
581
582 msg += _("\nPlease send this report to the program maintainer, thank you!\n");
583
584 wxLogMessage(wxT("%s"), msg.c_str());
585
586 // we have to do this or the report would be deleted, and we don't even
587 // have any way to ask the user if he wants to keep it from here
588 Reset();
589
590 return true;
591 }
592
593 // ============================================================================
594 // wxDebugReport-derived classes
595 // ============================================================================
596
597 #if wxUSE_ZIPSTREAM
598
599 // ----------------------------------------------------------------------------
600 // wxDebugReportCompress
601 // ----------------------------------------------------------------------------
602
603 void wxDebugReportCompress::SetCompressedFileDirectory(const wxString& dir)
604 {
605 wxASSERT_MSG( m_zipfile.empty(), "Too late: call this before Process()" );
606
607 m_zipDir = dir;
608 }
609
610 void wxDebugReportCompress::SetCompressedFileBaseName(const wxString& name)
611 {
612 wxASSERT_MSG( m_zipfile.empty(), "Too late: call this before Process()" );
613
614 m_zipName = name;
615 }
616
617 bool wxDebugReportCompress::DoProcess()
618 {
619 const size_t count = GetFilesCount();
620 if ( !count )
621 return false;
622
623 // create the compressed report file outside of the directory with the
624 // report files as it will be deleted by wxDebugReport dtor but we want to
625 // keep this one: for this we simply treat the directory name as the name
626 // of the file so that its last component becomes our base name
627 wxFileName fn(GetDirectory());
628 if ( !m_zipDir.empty() )
629 fn.SetPath(m_zipDir);
630 if ( !m_zipName.empty() )
631 fn.SetName(m_zipName);
632 fn.SetExt("zip");
633
634 // create the streams
635 wxFFileOutputStream os(fn.GetFullPath(), wxT("wb"));
636 wxZipOutputStream zos(os, 9);
637
638 // add all files to the ZIP one
639 wxString name, desc;
640 for ( size_t n = 0; n < count; n++ )
641 {
642 GetFile(n, &name, &desc);
643
644 wxZipEntry *ze = new wxZipEntry(name);
645 ze->SetComment(desc);
646
647 if ( !zos.PutNextEntry(ze) )
648 return false;
649
650 const wxFileName filename(GetDirectory(), name);
651 wxFFileInputStream is(filename.GetFullPath());
652 if ( !is.IsOk() || !zos.Write(is).IsOk() )
653 return false;
654 }
655
656 if ( !zos.Close() )
657 return false;
658
659 m_zipfile = fn.GetFullPath();
660
661 return true;
662 }
663
664 // ----------------------------------------------------------------------------
665 // wxDebugReportUpload
666 // ----------------------------------------------------------------------------
667
668 wxDebugReportUpload::wxDebugReportUpload(const wxString& url,
669 const wxString& input,
670 const wxString& action,
671 const wxString& curl)
672 : m_uploadURL(url),
673 m_inputField(input),
674 m_curlCmd(curl)
675 {
676 if ( m_uploadURL.Last() != wxT('/') )
677 m_uploadURL += wxT('/');
678 m_uploadURL += action;
679 }
680
681 bool wxDebugReportUpload::DoProcess()
682 {
683 if ( !wxDebugReportCompress::DoProcess() )
684 return false;
685
686
687 wxArrayString output, errors;
688 int rc = wxExecute(wxString::Format
689 (
690 wxT("%s -F \"%s=@%s\" %s"),
691 m_curlCmd.c_str(),
692 m_inputField.c_str(),
693 GetCompressedFileName().c_str(),
694 m_uploadURL.c_str()
695 ),
696 output,
697 errors);
698 if ( rc == -1 )
699 {
700 wxLogError(_("Failed to execute curl, please install it in PATH."));
701 }
702 else if ( rc != 0 )
703 {
704 const size_t count = errors.GetCount();
705 if ( count )
706 {
707 for ( size_t n = 0; n < count; n++ )
708 {
709 wxLogWarning(wxT("%s"), errors[n].c_str());
710 }
711 }
712
713 wxLogError(_("Failed to upload the debug report (error code %d)."), rc);
714 }
715 else // rc == 0
716 {
717 if ( OnServerReply(output) )
718 return true;
719 }
720
721 return false;
722 }
723
724 #endif // wxUSE_ZIPSTREAM
725
726 #endif // wxUSE_DEBUGREPORT