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gecko/toolkit/crashreporter/nsExceptionHandler.cpp
Justin Dolske fcf3ef6b6c Bustage fix for bug 540532.
2010-02-09 18:11:08 -08:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Breakpad integration
*
* The Initial Developer of the Original Code is
* Ted Mielczarek <ted.mielczarek@gmail.com>
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Josh Aas <josh@mozilla.com>
* Justin Dolske <dolske@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsExceptionHandler.h"
#if defined(XP_WIN32)
#ifdef WIN32_LEAN_AND_MEAN
#undef WIN32_LEAN_AND_MEAN
#endif
#include "nsIWindowsRegKey.h"
#if defined(MOZ_IPC)
# include "client/windows/crash_generation/crash_generation_server.h"
#endif
#include "client/windows/handler/exception_handler.h"
#include <DbgHelp.h>
#include <string.h>
#elif defined(XP_MACOSX)
#include "client/mac/handler/exception_handler.h"
#include <string>
#include <Carbon/Carbon.h>
#include <fcntl.h>
#include <sys/types.h>
#include <unistd.h>
#include "mac_utils.h"
#elif defined(XP_LINUX)
#include "nsDirectoryServiceUtils.h"
#include "nsDirectoryServiceDefs.h"
#include "nsIINIParser.h"
#if defined(MOZ_IPC)
# include "client/linux/crash_generation/client_info.h"
# include "client/linux/crash_generation/crash_generation_server.h"
#endif
#include "client/linux/handler/exception_handler.h"
#include <fcntl.h>
#include <sys/types.h>
#include <unistd.h>
#elif defined(XP_SOLARIS)
#include "client/solaris/handler/exception_handler.h"
#include <fcntl.h>
#include <sys/types.h>
#include <unistd.h>
#else
#error "Not yet implemented for this platform"
#endif // defined(XP_WIN32)
#include <stdlib.h>
#include <time.h>
#include <prenv.h>
#include <prio.h>
#include <prmem.h>
#include "mozilla/Mutex.h"
#include "nsDebug.h"
#include "nsCRT.h"
#include "nsILocalFile.h"
#include "nsIFileStreams.h"
#include "nsDataHashtable.h"
#include "nsInterfaceHashtable.h"
#include "prprf.h"
#include "nsIXULAppInfo.h"
#if defined(MOZ_IPC)
using google_breakpad::CrashGenerationServer;
using google_breakpad::ClientInfo;
using mozilla::Mutex;
using mozilla::MutexAutoLock;
#endif
namespace CrashReporter {
#ifdef XP_WIN32
typedef wchar_t XP_CHAR;
#define CONVERT_UTF16_TO_XP_CHAR(x) x
#define CONVERT_XP_CHAR_TO_UTF16(x) x
#define XP_STRLEN(x) wcslen(x)
#define CRASH_REPORTER_FILENAME "crashreporter.exe"
#define PATH_SEPARATOR "\\"
#define XP_PATH_SEPARATOR L"\\"
// sort of arbitrary, but MAX_PATH is kinda small
#define XP_PATH_MAX 4096
// "<reporter path>" "<minidump path>"
#define CMDLINE_SIZE ((XP_PATH_MAX * 2) + 6)
#ifdef _USE_32BIT_TIME_T
#define XP_TTOA(time, buffer, base) ltoa(time, buffer, base)
#else
#define XP_TTOA(time, buffer, base) _i64toa(time, buffer, base)
#endif
#else
typedef char XP_CHAR;
#define CONVERT_UTF16_TO_XP_CHAR(x) NS_ConvertUTF16toUTF8(x)
#define CONVERT_XP_CHAR_TO_UTF16(x) NS_ConvertUTF8toUTF16(x)
#define XP_STRLEN(x) strlen(x)
#define CRASH_REPORTER_FILENAME "crashreporter"
#define PATH_SEPARATOR "/"
#define XP_PATH_SEPARATOR "/"
#define XP_PATH_MAX PATH_MAX
#define XP_TTOA(time, buffer, base) sprintf(buffer, "%ld", time)
#endif // XP_WIN32
static const XP_CHAR dumpFileExtension[] = {'.', 'd', 'm', 'p',
'\0'}; // .dmp
static const XP_CHAR extraFileExtension[] = {'.', 'e', 'x', 't',
'r', 'a', '\0'}; // .extra
static google_breakpad::ExceptionHandler* gExceptionHandler = nsnull;
static XP_CHAR* crashReporterPath;
// if this is false, we don't launch the crash reporter
static bool doReport = true;
// if this is true, we pass the exception on to the OS crash reporter
static bool showOSCrashReporter = false;
// The time of the last recorded crash, as a time_t value.
static time_t lastCrashTime = 0;
// The pathname of a file to store the crash time in
static XP_CHAR lastCrashTimeFilename[XP_PATH_MAX] = {0};
// these are just here for readability
static const char kCrashTimeParameter[] = "CrashTime=";
static const int kCrashTimeParameterLen = sizeof(kCrashTimeParameter)-1;
static const char kTimeSinceLastCrashParameter[] = "SecondsSinceLastCrash=";
static const int kTimeSinceLastCrashParameterLen =
sizeof(kTimeSinceLastCrashParameter)-1;
// this holds additional data sent via the API
static nsDataHashtable<nsCStringHashKey,nsCString>* crashReporterAPIData_Hash;
static nsCString* crashReporterAPIData = nsnull;
static nsCString* notesField = nsnull;
#if defined(MOZ_IPC)
// OOP crash reporting
static CrashGenerationServer* crashServer; // chrome process has this
# if defined(XP_WIN)
// If crash reporting is disabled, we hand out this "null" pipe to the
// child process and don't attempt to connect to a parent server.
static const char kNullNotifyPipe[] = "-";
static char* childCrashNotifyPipe;
# elif defined(XP_LINUX)
static int serverSocketFd = -1;
static int clientSocketFd = -1;
static const int kMagicChildCrashReportFd = 42;
# endif
// |dumpMapLock| must protect all access to |pidToMinidump|.
static Mutex* dumpMapLock;
typedef nsInterfaceHashtable<nsUint32HashKey, nsIFile> ChildMinidumpMap;
static ChildMinidumpMap* pidToMinidump;
#endif // MOZ_IPC
static XP_CHAR*
Concat(XP_CHAR* str, const XP_CHAR* toAppend, int* size)
{
int appendLen = XP_STRLEN(toAppend);
if (appendLen >= *size) appendLen = *size - 1;
memcpy(str, toAppend, appendLen * sizeof(XP_CHAR));
str += appendLen;
*str = '\0';
*size -= appendLen;
return str;
}
bool MinidumpCallback(const XP_CHAR* dump_path,
const XP_CHAR* minidump_id,
void* context,
#ifdef XP_WIN32
EXCEPTION_POINTERS* exinfo,
MDRawAssertionInfo* assertion,
#endif
bool succeeded)
{
bool returnValue = showOSCrashReporter ? false : succeeded;
XP_CHAR minidumpPath[XP_PATH_MAX];
int size = XP_PATH_MAX;
XP_CHAR* p = Concat(minidumpPath, dump_path, &size);
p = Concat(p, XP_PATH_SEPARATOR, &size);
p = Concat(p, minidump_id, &size);
Concat(p, dumpFileExtension, &size);
XP_CHAR extraDataPath[XP_PATH_MAX];
size = XP_PATH_MAX;
p = Concat(extraDataPath, dump_path, &size);
p = Concat(p, XP_PATH_SEPARATOR, &size);
p = Concat(p, minidump_id, &size);
Concat(p, extraFileExtension, &size);
// calculate time since last crash (if possible), and store
// the time of this crash.
time_t crashTime = time(NULL);
time_t timeSinceLastCrash = 0;
// stringified versions of the above
char crashTimeString[32];
int crashTimeStringLen = 0;
char timeSinceLastCrashString[32];
int timeSinceLastCrashStringLen = 0;
XP_TTOA(crashTime, crashTimeString, 10);
crashTimeStringLen = strlen(crashTimeString);
if (lastCrashTime != 0) {
timeSinceLastCrash = crashTime - lastCrashTime;
XP_TTOA(timeSinceLastCrash, timeSinceLastCrashString, 10);
timeSinceLastCrashStringLen = strlen(timeSinceLastCrashString);
}
// write crash time to file
if (lastCrashTimeFilename[0] != 0) {
#if defined(XP_WIN32)
HANDLE hFile = CreateFile(lastCrashTimeFilename, GENERIC_WRITE, 0,
NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
NULL);
if(hFile != INVALID_HANDLE_VALUE) {
DWORD nBytes;
WriteFile(hFile, crashTimeString, crashTimeStringLen, &nBytes, NULL);
CloseHandle(hFile);
}
#elif defined(XP_UNIX)
int fd = open(lastCrashTimeFilename,
O_WRONLY | O_CREAT | O_TRUNC,
0600);
if (fd != -1) {
ssize_t ignored = write(fd, crashTimeString, crashTimeStringLen);
(void)ignored;
close(fd);
}
#endif
}
#if defined(XP_WIN32)
XP_CHAR cmdLine[CMDLINE_SIZE];
size = CMDLINE_SIZE;
p = Concat(cmdLine, L"\"", &size);
p = Concat(p, crashReporterPath, &size);
p = Concat(p, L"\" \"", &size);
p = Concat(p, minidumpPath, &size);
Concat(p, L"\"", &size);
if (!crashReporterAPIData->IsEmpty()) {
// write out API data
HANDLE hFile = CreateFile(extraDataPath, GENERIC_WRITE, 0,
NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
NULL);
if(hFile != INVALID_HANDLE_VALUE) {
DWORD nBytes;
WriteFile(hFile, crashReporterAPIData->get(),
crashReporterAPIData->Length(), &nBytes, NULL);
WriteFile(hFile, kCrashTimeParameter, kCrashTimeParameterLen,
&nBytes, NULL);
WriteFile(hFile, crashTimeString, crashTimeStringLen, &nBytes, NULL);
WriteFile(hFile, "\n", 1, &nBytes, NULL);
if (timeSinceLastCrash != 0) {
WriteFile(hFile, kTimeSinceLastCrashParameter,
kTimeSinceLastCrashParameterLen, &nBytes, NULL);
WriteFile(hFile, timeSinceLastCrashString, timeSinceLastCrashStringLen,
&nBytes, NULL);
WriteFile(hFile, "\n", 1, &nBytes, NULL);
}
CloseHandle(hFile);
}
}
if (!doReport) {
return returnValue;
}
STARTUPINFO si;
PROCESS_INFORMATION pi;
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = SW_SHOWNORMAL;
ZeroMemory(&pi, sizeof(pi));
if (CreateProcess(NULL, (LPWSTR)cmdLine, NULL, NULL, FALSE, 0,
NULL, NULL, &si, &pi)) {
CloseHandle( pi.hProcess );
CloseHandle( pi.hThread );
}
// we're not really in a position to do anything if the CreateProcess fails
TerminateProcess(GetCurrentProcess(), 1);
#elif defined(XP_UNIX)
if (!crashReporterAPIData->IsEmpty()) {
// write out API data
int fd = open(extraDataPath,
O_WRONLY | O_CREAT | O_TRUNC,
0666);
if (fd != -1) {
// not much we can do in case of error
ssize_t ignored = write(fd, crashReporterAPIData->get(),
crashReporterAPIData->Length());
ignored = write(fd, kCrashTimeParameter, kCrashTimeParameterLen);
ignored = write(fd, crashTimeString, crashTimeStringLen);
ignored = write(fd, "\n", 1);
if (timeSinceLastCrash != 0) {
ignored = write(fd, kTimeSinceLastCrashParameter,
kTimeSinceLastCrashParameterLen);
ignored = write(fd, timeSinceLastCrashString,
timeSinceLastCrashStringLen);
ignored = write(fd, "\n", 1);
}
close (fd);
}
}
if (!doReport) {
return returnValue;
}
pid_t pid = fork();
if (pid == -1)
return false;
else if (pid == 0) {
// need to clobber this, as libcurl might load NSS,
// and we want it to load the system NSS.
unsetenv("LD_LIBRARY_PATH");
(void) execl(crashReporterPath,
crashReporterPath, minidumpPath, (char*)0);
_exit(1);
}
#endif
return returnValue;
}
#ifdef XP_WIN
/**
* Filters out floating point exceptions which are handled by nsSigHandlers.cpp
* and should not be handled as crashes.
*/
static bool FPEFilter(void* context, EXCEPTION_POINTERS* exinfo,
MDRawAssertionInfo* assertion)
{
PEXCEPTION_RECORD e = (PEXCEPTION_RECORD)exinfo->ExceptionRecord;
switch (e->ExceptionCode) {
case STATUS_FLOAT_DENORMAL_OPERAND:
case STATUS_FLOAT_DIVIDE_BY_ZERO:
case STATUS_FLOAT_INEXACT_RESULT:
case STATUS_FLOAT_INVALID_OPERATION:
case STATUS_FLOAT_OVERFLOW:
case STATUS_FLOAT_STACK_CHECK:
case STATUS_FLOAT_UNDERFLOW:
case STATUS_FLOAT_MULTIPLE_FAULTS:
case STATUS_FLOAT_MULTIPLE_TRAPS:
return false; // Don't write minidump, continue exception search
}
return true;
}
#endif // XP_WIN
nsresult SetExceptionHandler(nsILocalFile* aXREDirectory,
bool force/*=false*/)
{
nsresult rv;
if (gExceptionHandler)
return NS_ERROR_ALREADY_INITIALIZED;
const char *envvar = PR_GetEnv("MOZ_CRASHREPORTER_DISABLE");
if (envvar && *envvar && !force)
return NS_OK;
// this environment variable prevents us from launching
// the crash reporter client
envvar = PR_GetEnv("MOZ_CRASHREPORTER_NO_REPORT");
if (envvar && *envvar)
doReport = false;
// allocate our strings
crashReporterAPIData = new nsCString();
NS_ENSURE_TRUE(crashReporterAPIData, NS_ERROR_OUT_OF_MEMORY);
crashReporterAPIData_Hash =
new nsDataHashtable<nsCStringHashKey,nsCString>();
NS_ENSURE_TRUE(crashReporterAPIData_Hash, NS_ERROR_OUT_OF_MEMORY);
rv = crashReporterAPIData_Hash->Init();
NS_ENSURE_SUCCESS(rv, rv);
notesField = new nsCString();
NS_ENSURE_TRUE(notesField, NS_ERROR_OUT_OF_MEMORY);
// locate crashreporter executable
nsCOMPtr<nsIFile> exePath;
rv = aXREDirectory->Clone(getter_AddRefs(exePath));
NS_ENSURE_SUCCESS(rv, rv);
#if defined(XP_MACOSX)
exePath->Append(NS_LITERAL_STRING("crashreporter.app"));
exePath->Append(NS_LITERAL_STRING("Contents"));
exePath->Append(NS_LITERAL_STRING("MacOS"));
#endif
exePath->AppendNative(NS_LITERAL_CSTRING(CRASH_REPORTER_FILENAME));
#ifdef XP_WIN32
nsString crashReporterPath_temp;
exePath->GetPath(crashReporterPath_temp);
crashReporterPath = ToNewUnicode(crashReporterPath_temp);
#else
nsCString crashReporterPath_temp;
exePath->GetNativePath(crashReporterPath_temp);
crashReporterPath = ToNewCString(crashReporterPath_temp);
#endif
// get temp path to use for minidump path
#if defined(XP_WIN32)
nsString tempPath;
// first figure out buffer size
int pathLen = GetTempPath(0, NULL);
if (pathLen == 0)
return NS_ERROR_FAILURE;
tempPath.SetLength(pathLen);
GetTempPath(pathLen, (LPWSTR)tempPath.BeginWriting());
#elif defined(XP_MACOSX)
nsCString tempPath;
FSRef fsRef;
OSErr err = FSFindFolder(kUserDomain, kTemporaryFolderType,
kCreateFolder, &fsRef);
if (err != noErr)
return NS_ERROR_FAILURE;
char path[PATH_MAX];
OSStatus status = FSRefMakePath(&fsRef, (UInt8*)path, PATH_MAX);
if (status != noErr)
return NS_ERROR_FAILURE;
tempPath = path;
#elif defined(XP_UNIX)
// we assume it's always /tmp on unix systems
nsCString tempPath = NS_LITERAL_CSTRING("/tmp/");
#else
#error "Implement this for your platform"
#endif
// now set the exception handler
gExceptionHandler = new google_breakpad::
ExceptionHandler(tempPath.get(),
#ifdef XP_WIN
FPEFilter,
#else
nsnull,
#endif
MinidumpCallback,
nsnull,
#if defined(XP_WIN32)
google_breakpad::ExceptionHandler::HANDLER_ALL);
#else
true);
#endif
if (!gExceptionHandler)
return NS_ERROR_OUT_OF_MEMORY;
// store application start time
char timeString[32];
XP_TTOA(time(NULL), timeString, 10);
AnnotateCrashReport(NS_LITERAL_CSTRING("StartupTime"),
nsDependentCString(timeString));
#if defined(XP_MACOSX)
// On OS X, many testers like to see the OS crash reporting dialog
// since it offers immediate stack traces. We allow them to set
// a default to pass exceptions to the OS handler.
showOSCrashReporter = PassToOSCrashReporter();
#endif
return NS_OK;
}
bool GetEnabled()
{
return gExceptionHandler != nsnull;
}
bool GetMinidumpPath(nsAString& aPath)
{
if (!gExceptionHandler)
return false;
aPath = CONVERT_XP_CHAR_TO_UTF16(gExceptionHandler->dump_path().c_str());
return true;
}
nsresult SetMinidumpPath(const nsAString& aPath)
{
if (!gExceptionHandler)
return NS_ERROR_NOT_INITIALIZED;
gExceptionHandler->set_dump_path(CONVERT_UTF16_TO_XP_CHAR(aPath).BeginReading());
return NS_OK;
}
static nsresult
WriteDataToFile(nsIFile* aFile, const nsACString& data)
{
nsCOMPtr<nsILocalFile> localFile = do_QueryInterface(aFile);
NS_ENSURE_TRUE(localFile, NS_ERROR_FAILURE);
PRFileDesc* fd;
nsresult rv = localFile->OpenNSPRFileDesc(PR_WRONLY | PR_CREATE_FILE, 00600,
&fd);
NS_ENSURE_SUCCESS(rv, rv);
rv = NS_OK;
if (PR_Write(fd, data.Data(), data.Length()) == -1) {
rv = NS_ERROR_FAILURE;
}
PR_Close(fd);
return rv;
}
static nsresult
GetFileContents(nsIFile* aFile, nsACString& data)
{
nsCOMPtr<nsILocalFile> localFile = do_QueryInterface(aFile);
NS_ENSURE_TRUE(localFile, NS_ERROR_FAILURE);
PRFileDesc* fd;
nsresult rv = localFile->OpenNSPRFileDesc(PR_RDONLY, 0, &fd);
NS_ENSURE_SUCCESS(rv, rv);
rv = NS_OK;
PRInt32 filesize = PR_Available(fd);
if (filesize <= 0) {
rv = NS_ERROR_FILE_NOT_FOUND;
}
else {
data.SetLength(filesize);
if (PR_Read(fd, data.BeginWriting(), filesize) == -1) {
rv = NS_ERROR_FAILURE;
}
}
PR_Close(fd);
return rv;
}
// Function typedef for initializing a piece of data that we
// don't already have.
typedef nsresult (*InitDataFunc)(nsACString&);
// Attempt to read aFile's contents into aContents, if aFile
// does not exist, create it and initialize its contents
// by calling aInitFunc for the data.
static nsresult
GetOrInit(nsIFile* aDir, const nsACString& filename,
nsACString& aContents, InitDataFunc aInitFunc)
{
PRBool exists;
nsCOMPtr<nsIFile> dataFile;
nsresult rv = aDir->Clone(getter_AddRefs(dataFile));
NS_ENSURE_SUCCESS(rv, rv);
rv = dataFile->AppendNative(filename);
NS_ENSURE_SUCCESS(rv, rv);
rv = dataFile->Exists(&exists);
NS_ENSURE_SUCCESS(rv, rv);
if (!exists) {
if (aInitFunc) {
// get the initial value and write it to the file
rv = aInitFunc(aContents);
NS_ENSURE_SUCCESS(rv, rv);
rv = WriteDataToFile(dataFile, aContents);
}
else {
// didn't pass in an init func
rv = NS_ERROR_FAILURE;
}
}
else {
// just get the file's contents
rv = GetFileContents(dataFile, aContents);
}
return rv;
}
// Init the "install time" data. We're taking an easy way out here
// and just setting this to "the time when this version was first run".
static nsresult
InitInstallTime(nsACString& aInstallTime)
{
time_t t = time(NULL);
char buf[16];
sprintf(buf, "%ld", t);
aInstallTime = buf;
return NS_OK;
}
// Annotate the crash report with a Unique User ID and time
// since install. Also do some prep work for recording
// time since last crash, which must be calculated at
// crash time.
// If any piece of data doesn't exist, initialize it first.
nsresult SetupExtraData(nsILocalFile* aAppDataDirectory,
const nsACString& aBuildID)
{
nsCOMPtr<nsIFile> dataDirectory;
nsresult rv = aAppDataDirectory->Clone(getter_AddRefs(dataDirectory));
NS_ENSURE_SUCCESS(rv, rv);
rv = dataDirectory->AppendNative(NS_LITERAL_CSTRING("Crash Reports"));
NS_ENSURE_SUCCESS(rv, rv);
PRBool exists;
rv = dataDirectory->Exists(&exists);
NS_ENSURE_SUCCESS(rv, rv);
if (!exists) {
rv = dataDirectory->Create(nsIFile::DIRECTORY_TYPE, 0700);
NS_ENSURE_SUCCESS(rv, rv);
}
#if defined(XP_WIN32)
nsAutoString dataDirEnv(NS_LITERAL_STRING("MOZ_CRASHREPORTER_DATA_DIRECTORY="));
nsAutoString dataDirectoryPath;
rv = dataDirectory->GetPath(dataDirectoryPath);
NS_ENSURE_SUCCESS(rv, rv);
dataDirEnv.Append(dataDirectoryPath);
_wputenv(dataDirEnv.get());
#else
// Save this path in the environment for the crash reporter application.
nsCAutoString dataDirEnv("MOZ_CRASHREPORTER_DATA_DIRECTORY=");
nsCAutoString dataDirectoryPath;
rv = dataDirectory->GetNativePath(dataDirectoryPath);
NS_ENSURE_SUCCESS(rv, rv);
dataDirEnv.Append(dataDirectoryPath);
char* env = ToNewCString(dataDirEnv);
NS_ENSURE_TRUE(env, NS_ERROR_OUT_OF_MEMORY);
PR_SetEnv(env);
#endif
nsCAutoString data;
if(NS_SUCCEEDED(GetOrInit(dataDirectory,
NS_LITERAL_CSTRING("InstallTime") + aBuildID,
data, InitInstallTime)))
AnnotateCrashReport(NS_LITERAL_CSTRING("InstallTime"), data);
// this is a little different, since we can't init it with anything,
// since it's stored at crash time, and we can't annotate the
// crash report with the stored value, since we really want
// (now - LastCrash), so we just get a value if it exists,
// and store it in a time_t value.
if(NS_SUCCEEDED(GetOrInit(dataDirectory, NS_LITERAL_CSTRING("LastCrash"),
data, NULL))) {
lastCrashTime = (time_t)atol(data.get());
}
// not really the best place to init this, but I have the path I need here
nsCOMPtr<nsIFile> lastCrashFile;
rv = dataDirectory->Clone(getter_AddRefs(lastCrashFile));
NS_ENSURE_SUCCESS(rv, rv);
rv = lastCrashFile->AppendNative(NS_LITERAL_CSTRING("LastCrash"));
NS_ENSURE_SUCCESS(rv, rv);
memset(lastCrashTimeFilename, 0, sizeof(lastCrashTimeFilename));
#if defined(XP_WIN32)
nsAutoString filename;
rv = lastCrashFile->GetPath(filename);
NS_ENSURE_SUCCESS(rv, rv);
if (filename.Length() < XP_PATH_MAX)
wcsncpy(lastCrashTimeFilename, filename.get(), filename.Length());
#else
nsCAutoString filename;
rv = lastCrashFile->GetNativePath(filename);
NS_ENSURE_SUCCESS(rv, rv);
if (filename.Length() < XP_PATH_MAX)
strncpy(lastCrashTimeFilename, filename.get(), filename.Length());
#endif
return NS_OK;
}
static void OOPDeinit();
nsresult UnsetExceptionHandler()
{
delete gExceptionHandler;
// do this here in the unlikely case that we succeeded in allocating
// our strings but failed to allocate gExceptionHandler.
if (crashReporterAPIData_Hash) {
delete crashReporterAPIData_Hash;
crashReporterAPIData_Hash = nsnull;
}
if (crashReporterAPIData) {
delete crashReporterAPIData;
crashReporterAPIData = nsnull;
}
if (notesField) {
delete notesField;
notesField = nsnull;
}
if (crashReporterPath) {
NS_Free(crashReporterPath);
crashReporterPath = nsnull;
}
if (!gExceptionHandler)
return NS_ERROR_NOT_INITIALIZED;
gExceptionHandler = nsnull;
#ifdef MOZ_IPC
OOPDeinit();
#endif
return NS_OK;
}
static void ReplaceChar(nsCString& str, const nsACString& character,
const nsACString& replacement)
{
nsCString::const_iterator start, end;
str.BeginReading(start);
str.EndReading(end);
while (FindInReadable(character, start, end)) {
PRInt32 pos = end.size_backward();
str.Replace(pos - 1, 1, replacement);
str.BeginReading(start);
start.advance(pos + replacement.Length() - 1);
str.EndReading(end);
}
}
static PRBool DoFindInReadable(const nsACString& str, const nsACString& value)
{
nsACString::const_iterator start, end;
str.BeginReading(start);
str.EndReading(end);
return FindInReadable(value, start, end);
}
static PLDHashOperator EnumerateEntries(const nsACString& key,
nsCString entry,
void* userData)
{
crashReporterAPIData->Append(key + NS_LITERAL_CSTRING("=") + entry +
NS_LITERAL_CSTRING("\n"));
return PL_DHASH_NEXT;
}
nsresult AnnotateCrashReport(const nsACString& key, const nsACString& data)
{
if (!gExceptionHandler)
return NS_ERROR_NOT_INITIALIZED;
if (DoFindInReadable(key, NS_LITERAL_CSTRING("=")) ||
DoFindInReadable(key, NS_LITERAL_CSTRING("\n")))
return NS_ERROR_INVALID_ARG;
if (DoFindInReadable(data, NS_LITERAL_CSTRING("\0")))
return NS_ERROR_INVALID_ARG;
nsCString escapedData(data);
// escape backslashes
ReplaceChar(escapedData, NS_LITERAL_CSTRING("\\"),
NS_LITERAL_CSTRING("\\\\"));
// escape newlines
ReplaceChar(escapedData, NS_LITERAL_CSTRING("\n"),
NS_LITERAL_CSTRING("\\n"));
nsresult rv = crashReporterAPIData_Hash->Put(key, escapedData);
NS_ENSURE_SUCCESS(rv, rv);
// now rebuild the file contents
crashReporterAPIData->Truncate(0);
crashReporterAPIData_Hash->EnumerateRead(EnumerateEntries,
crashReporterAPIData);
return NS_OK;
}
nsresult AppendAppNotesToCrashReport(const nsACString& data)
{
if (!gExceptionHandler)
return NS_ERROR_NOT_INITIALIZED;
if (DoFindInReadable(data, NS_LITERAL_CSTRING("\0")))
return NS_ERROR_INVALID_ARG;
notesField->Append(data);
return AnnotateCrashReport(NS_LITERAL_CSTRING("Notes"), *notesField);
}
// Returns true if found, false if not found.
bool GetAnnotation(const nsACString& key, nsACString& data)
{
if (!gExceptionHandler)
return false;
nsCAutoString entry;
if (!crashReporterAPIData_Hash->Get(key, &entry))
return false;
data = entry;
return true;
}
bool GetServerURL(nsACString& aServerURL)
{
if (!gExceptionHandler)
return false;
return GetAnnotation(NS_LITERAL_CSTRING("ServerURL"), aServerURL);
}
nsresult SetServerURL(const nsACString& aServerURL)
{
// store server URL with the API data
// the client knows to handle this specially
return AnnotateCrashReport(NS_LITERAL_CSTRING("ServerURL"),
aServerURL);
}
nsresult
SetRestartArgs(int argc, char** argv)
{
if (!gExceptionHandler)
return NS_OK;
int i;
nsCAutoString envVar;
char *env;
for (i = 0; i < argc; i++) {
envVar = "MOZ_CRASHREPORTER_RESTART_ARG_";
envVar.AppendInt(i);
envVar += "=";
#if defined(XP_UNIX) && !defined(XP_MACOSX)
// we'd like to run the script around the binary
// instead of the binary itself, so remove the -bin
// if it exists on the first argument
int arg_len = 0;
if (i == 0 &&
(arg_len = strlen(argv[i])) > 4 &&
strcmp(argv[i] + arg_len - 4, "-bin") == 0) {
envVar.Append(argv[i], arg_len - 4);
} else
#endif
{
envVar += argv[i];
}
// PR_SetEnv() wants the string to be available for the lifetime
// of the app, so dup it here
env = ToNewCString(envVar);
if (!env)
return NS_ERROR_OUT_OF_MEMORY;
PR_SetEnv(env);
}
// make sure the arg list is terminated
envVar = "MOZ_CRASHREPORTER_RESTART_ARG_";
envVar.AppendInt(i);
envVar += "=";
// PR_SetEnv() wants the string to be available for the lifetime
// of the app, so dup it here
env = ToNewCString(envVar);
if (!env)
return NS_ERROR_OUT_OF_MEMORY;
PR_SetEnv(env);
// make sure we save the info in XUL_APP_FILE for the reporter
const char *appfile = PR_GetEnv("XUL_APP_FILE");
if (appfile && *appfile) {
envVar = "MOZ_CRASHREPORTER_RESTART_XUL_APP_FILE=";
envVar += appfile;
env = ToNewCString(envVar);
PR_SetEnv(env);
}
return NS_OK;
}
#ifdef XP_WIN32
nsresult WriteMinidumpForException(EXCEPTION_POINTERS* aExceptionInfo)
{
if (!gExceptionHandler)
return NS_ERROR_NOT_INITIALIZED;
return gExceptionHandler->WriteMinidumpForException(aExceptionInfo) ? NS_OK : NS_ERROR_FAILURE;
}
#endif
#ifdef XP_MACOSX
nsresult AppendObjCExceptionInfoToAppNotes(void *inException)
{
nsCAutoString excString;
GetObjCExceptionInfo(inException, excString);
AppendAppNotesToCrashReport(excString);
return NS_OK;
}
#endif
/*
* Combined code to get/set the crash reporter submission pref on
* different platforms.
*/
static nsresult PrefSubmitReports(PRBool* aSubmitReports, bool writePref)
{
nsresult rv;
#if defined(XP_WIN32)
/*
* NOTE! This needs to stay in sync with the preference checking code
* in toolkit/crashreporter/client/crashreporter_win.cpp
*/
nsCOMPtr<nsIXULAppInfo> appinfo =
do_GetService("@mozilla.org/xre/app-info;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCAutoString appVendor, appName;
rv = appinfo->GetVendor(appVendor);
NS_ENSURE_SUCCESS(rv, rv);
rv = appinfo->GetName(appName);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIWindowsRegKey> regKey
(do_CreateInstance("@mozilla.org/windows-registry-key;1", &rv));
NS_ENSURE_SUCCESS(rv, rv);
nsCAutoString regPath;
regPath.AppendLiteral("Software\\");
if(!appVendor.IsEmpty()) {
regPath.Append(appVendor);
regPath.AppendLiteral("\\");
}
regPath.Append(appName);
regPath.AppendLiteral("\\Crash Reporter");
// If we're saving the pref value, just write it to ROOT_KEY_CURRENT_USER
// and we're done.
if (writePref) {
rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER,
NS_ConvertUTF8toUTF16(regPath),
nsIWindowsRegKey::ACCESS_SET_VALUE);
NS_ENSURE_SUCCESS(rv, rv);
PRUint32 value = *aSubmitReports ? 1 : 0;
rv = regKey->WriteIntValue(NS_LITERAL_STRING("SubmitCrashReport"), value);
regKey->Close();
return rv;
}
// We're reading the pref value, so we need to first look under
// ROOT_KEY_LOCAL_MACHINE to see if it's set there, and then fall back to
// ROOT_KEY_CURRENT_USER. If it's not set in either place, the pref defaults
// to "true".
PRUint32 value;
rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_LOCAL_MACHINE,
NS_ConvertUTF8toUTF16(regPath),
nsIWindowsRegKey::ACCESS_QUERY_VALUE);
if (NS_SUCCEEDED(rv)) {
rv = regKey->ReadIntValue(NS_LITERAL_STRING("SubmitCrashReport"), &value);
regKey->Close();
if (NS_SUCCEEDED(rv)) {
*aSubmitReports = !!value;
return NS_OK;
}
}
rv = regKey->Open(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER,
NS_ConvertUTF8toUTF16(regPath),
nsIWindowsRegKey::ACCESS_QUERY_VALUE);
if (NS_FAILED(rv)) {
*aSubmitReports = PR_TRUE;
return NS_OK;
}
rv = regKey->ReadIntValue(NS_LITERAL_STRING("SubmitCrashReport"), &value);
// default to true on failure
if (NS_FAILED(rv)) {
value = 1;
rv = NS_OK;
}
regKey->Close();
*aSubmitReports = !!value;
return NS_OK;
#elif defined(XP_MACOSX)
// TODO: Implement for OSX (bug 542379)
return NS_ERROR_NOT_IMPLEMENTED;
#elif defined(XP_UNIX)
/*
* NOTE! This needs to stay in sync with the preference checking code
* in toolkit/crashreporter/client/crashreporter_linux.cpp
*/
nsCOMPtr<nsIFile> reporterINI;
rv = NS_GetSpecialDirectory("UAppData", getter_AddRefs(reporterINI));
NS_ENSURE_SUCCESS(rv, rv);
reporterINI->AppendNative(NS_LITERAL_CSTRING("Crash Reports"));
reporterINI->AppendNative(NS_LITERAL_CSTRING("crashreporter.ini"));
PRBool exists;
rv = reporterINI->Exists(&exists);
NS_ENSURE_SUCCESS(rv, rv);
if (!exists) {
if (!writePref) {
// If reading the pref, default to true if .ini doesn't exist.
*aSubmitReports = PR_TRUE;
return NS_OK;
}
// Create the file so the INI processor can write to it.
rv = reporterINI->Create(nsIFile::NORMAL_FILE_TYPE, 0600);
NS_ENSURE_SUCCESS(rv, rv);
}
nsCOMPtr<nsIINIParserFactory> iniFactory =
do_GetService("@mozilla.org/xpcom/ini-processor-factory;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsILocalFile> localFile = do_QueryInterface(reporterINI);
NS_ENSURE_TRUE(localFile, NS_ERROR_FAILURE);
nsCOMPtr<nsIINIParser> iniParser;
rv = iniFactory->CreateINIParser(localFile,
getter_AddRefs(iniParser));
NS_ENSURE_SUCCESS(rv, rv);
// If we're writing the pref, just set and we're done.
if (writePref) {
nsCOMPtr<nsIINIParserWriter> iniWriter = do_QueryInterface(iniParser);
NS_ENSURE_TRUE(iniWriter, NS_ERROR_FAILURE);
rv = iniWriter->SetString(NS_LITERAL_CSTRING("Crash Reporter"),
NS_LITERAL_CSTRING("SubmitReport"),
*aSubmitReports ? NS_LITERAL_CSTRING("1") :
NS_LITERAL_CSTRING("0"));
NS_ENSURE_SUCCESS(rv, rv);
rv = iniWriter->WriteFile(NULL);
return rv;
}
nsCAutoString submitReportValue;
rv = iniParser->GetString(NS_LITERAL_CSTRING("Crash Reporter"),
NS_LITERAL_CSTRING("SubmitReport"),
submitReportValue);
// Default to "true" if the pref can't be found.
if (NS_FAILED(rv))
*aSubmitReports = PR_TRUE;
else if (submitReportValue.EqualsASCII("0"))
*aSubmitReports = PR_FALSE;
else
*aSubmitReports = PR_TRUE;
return NS_OK;
#else
return NS_ERROR_NOT_IMPLEMENTED;
#endif
}
nsresult GetSubmitReports(PRBool* aSubmitReports)
{
return PrefSubmitReports(aSubmitReports, false);
}
nsresult SetSubmitReports(PRBool aSubmitReports)
{
return PrefSubmitReports(&aSubmitReports, true);
}
#if defined(MOZ_IPC)
static PLDHashOperator EnumerateChildAnnotations(const nsACString& key,
nsCString entry,
void* userData)
{
// blacklist of entries from the parent process that we don't want to
// submit with the child process
static const char* kBlacklist[] = {
"FramePoisonBase",
"FramePoisonSize",
"StartupTime",
"URL"
};
static const int kBlacklistLength =
sizeof(kBlacklist) / sizeof(kBlacklist[0]);
// skip entries in the blacklist
for (int i = 0; i < kBlacklistLength; i++) {
if (key.EqualsASCII(kBlacklist[i]))
return PL_DHASH_NEXT;
}
nsIFileOutputStream* extraStream =
reinterpret_cast<nsIFileOutputStream*>(userData);
PRUint32 written;
extraStream->Write(key.BeginReading(), key.Length(), &written);
extraStream->Write("=", 1, &written);
extraStream->Write(entry.BeginReading(), entry.Length(), &written);
extraStream->Write("\n", 1, &written);
return PL_DHASH_NEXT;
}
static bool
MoveToPending(nsIFile* dumpFile, nsIFile* extraFile)
{
nsCOMPtr<nsIProperties> dirSvc
= do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID);
if (!dirSvc)
return false;
nsCOMPtr<nsILocalFile> pendingDir;
if (NS_FAILED(dirSvc->Get("UAppData",
NS_GET_IID(nsILocalFile),
getter_AddRefs(pendingDir))) ||
NS_FAILED(pendingDir->Append(NS_LITERAL_STRING("Crash Reports"))) ||
NS_FAILED(pendingDir->Append(NS_LITERAL_STRING("pending"))))
return false;
return NS_FAILED(dumpFile->MoveTo(pendingDir, EmptyString())) ||
NS_FAILED(extraFile->MoveTo(pendingDir, EmptyString()));
}
static void
OnChildProcessDumpRequested(void* aContext,
const ClientInfo* aClientInfo,
#if defined(XP_WIN)
const std::wstring*
#else
const std::string*
#endif
aFilePath)
{
nsCOMPtr<nsILocalFile> lf;
PRUint32 pid;
#ifdef XP_WIN
NS_NewLocalFile(nsDependentString(aFilePath->c_str()), PR_FALSE,
getter_AddRefs(lf));
pid = aClientInfo->pid();
#else
NS_NewNativeLocalFile(nsDependentCString(aFilePath->c_str()), PR_FALSE,
getter_AddRefs(lf));
pid = aClientInfo->pid_;
#endif
// Get an .extra file with the same base name as the .dmp file
nsCOMPtr<nsIFile> extraFile;
nsresult rv = lf->Clone(getter_AddRefs(extraFile));
if (NS_FAILED(rv))
return;
nsAutoString leafName;
rv = extraFile->GetLeafName(leafName);
if (NS_FAILED(rv))
return;
leafName.Replace(leafName.Length() - 3, 3,
NS_LITERAL_STRING("extra"));
rv = extraFile->SetLeafName(leafName);
if (NS_FAILED(rv))
return;
// Now write out the annotations to it
nsCOMPtr<nsIFileOutputStream> stream =
do_CreateInstance("@mozilla.org/network/file-output-stream;1");
rv = stream->Init(extraFile, -1, 0600, 0);
if (NS_FAILED(rv))
return;
crashReporterAPIData_Hash->EnumerateRead(EnumerateChildAnnotations,
stream.get());
// Add CrashTime to extra data
time_t crashTime = time(NULL);
char crashTimeString[32];
XP_TTOA(crashTime, crashTimeString, 10);
PRUint32 written;
stream->Write(kCrashTimeParameter, kCrashTimeParameterLen, &written);
stream->Write(crashTimeString, strlen(crashTimeString), &written);
stream->Write("\n", 1, &written);
stream->Close();
bool doReport = true;
char* e = getenv("MOZ_CRASHREPORTER_NO_REPORT");
if (e && *e)
doReport = false;
if (doReport)
MoveToPending(lf, extraFile);
{
MutexAutoLock lock(*dumpMapLock);
pidToMinidump->Put(pid, lf);
}
}
static bool
OOPInitialized()
{
return crashServer != NULL;
}
static void
OOPInit()
{
NS_ABORT_IF_FALSE(!OOPInitialized(),
"OOP crash reporter initialized more than once!");
NS_ABORT_IF_FALSE(gExceptionHandler != NULL,
"attempt to initialize OOP crash reporter before in-process crashreporter!");
#if defined(XP_WIN)
childCrashNotifyPipe =
PR_smprintf("\\\\.\\pipe\\gecko-crash-server-pipe.%i",
static_cast<int>(::GetCurrentProcessId()));
const std::wstring dumpPath = gExceptionHandler->dump_path();
crashServer = new CrashGenerationServer(
NS_ConvertASCIItoUTF16(childCrashNotifyPipe).get(),
NULL, // default security attributes
NULL, NULL, // we don't care about process connect here
OnChildProcessDumpRequested, NULL,
NULL, NULL, // we don't care about process exit here
true, // automatically generate dumps
&dumpPath);
#elif defined(XP_LINUX)
if (!CrashGenerationServer::CreateReportChannel(&serverSocketFd,
&clientSocketFd))
NS_RUNTIMEABORT("can't create crash reporter socketpair()");
const std::string dumpPath = gExceptionHandler->dump_path();
crashServer = new CrashGenerationServer(
serverSocketFd,
OnChildProcessDumpRequested, NULL,
NULL, NULL, // we don't care about process exit here
true, // automatically generate dumps
&dumpPath);
#endif
if (!crashServer->Start())
NS_RUNTIMEABORT("can't start crash reporter server()");
pidToMinidump = new ChildMinidumpMap();
pidToMinidump->Init();
dumpMapLock = new Mutex("CrashReporter::dumpMapLock");
}
static void
OOPDeinit()
{
if (!OOPInitialized()) {
NS_WARNING("OOPDeinit() without successful OOPInit()");
return;
}
delete crashServer;
crashServer = NULL;
delete dumpMapLock;
dumpMapLock = NULL;
delete pidToMinidump;
pidToMinidump = NULL;
#if defined(XP_WIN)
PR_Free(childCrashNotifyPipe);
childCrashNotifyPipe = NULL;
#endif
}
#if defined(XP_WIN)
// Parent-side API for children
const char*
GetChildNotificationPipe()
{
if (!GetEnabled())
return kNullNotifyPipe;
if (!OOPInitialized())
OOPInit();
return childCrashNotifyPipe;
}
// Child-side API
bool
SetRemoteExceptionHandler(const nsACString& crashPipe)
{
// crash reporting is disabled
if (crashPipe.Equals(kNullNotifyPipe))
return true;
NS_ABORT_IF_FALSE(!gExceptionHandler, "crash client already init'd");
gExceptionHandler = new google_breakpad::
ExceptionHandler(L"",
NULL, // no filter callback
NULL, // no minidump callback
NULL, // no callback context
google_breakpad::ExceptionHandler::HANDLER_ALL,
MiniDumpNormal,
NS_ConvertASCIItoUTF16(crashPipe).BeginReading(),
NULL);
// we either do remote or nothing, no fallback to regular crash reporting
return gExceptionHandler->IsOutOfProcess();
}
//--------------------------------------------------
#elif defined(XP_UNIX)
// Parent-side API for children
bool
CreateNotificationPipeForChild(int* childCrashFd, int* childCrashRemapFd)
{
if (!GetEnabled()) {
*childCrashFd = -1;
*childCrashRemapFd = -1;
return true;
}
if (!OOPInitialized())
OOPInit();
*childCrashFd = clientSocketFd;
*childCrashRemapFd = kMagicChildCrashReportFd;
return true;
}
// Child-side API
bool
SetRemoteExceptionHandler()
{
NS_ABORT_IF_FALSE(!gExceptionHandler, "crash client already init'd");
gExceptionHandler = new google_breakpad::
ExceptionHandler("",
NULL, // no filter callback
NULL, // no minidump callback
NULL, // no callback context
true, // install signal handlers
kMagicChildCrashReportFd);
// we either do remote or nothing, no fallback to regular crash reporting
return gExceptionHandler->IsOutOfProcess();
}
#endif // XP_WIN
bool
GetMinidumpForChild(PRUint32 childPid, nsIFile** dump)
{
if (!GetEnabled())
return false;
MutexAutoLock lock(*dumpMapLock);
return pidToMinidump->Get(childPid, dump);
}
bool
UnsetRemoteExceptionHandler()
{
delete gExceptionHandler;
gExceptionHandler = NULL;
return true;
}
#endif // MOZ_IPC
} // namespace CrashReporter
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