1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <windows.h>
#include "chrome/installer/util/logging_installer.h"
#include "base/command_line.h"
#include "base/file_util.h"
#include "base/files/file_path.h"
#include "base/logging.h"
#include "base/logging_win.h"
#include "base/path_service.h"
#include "base/platform_file.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "base/win/scoped_handle.h"
#include "chrome/installer/util/master_preferences.h"
#include "chrome/installer/util/master_preferences_constants.h"
#include "chrome/installer/util/util_constants.h"
// {93BCE0BF-3FAF-43b1-9E28-BEB6FAB5ECE7}
static const GUID kSetupTraceProvider = { 0x93bce0bf, 0x3faf, 0x43b1,
{ 0x9e, 0x28, 0xbe, 0xb6, 0xfa, 0xb5, 0xec, 0xe7 } };
namespace installer {
// This should be true for the period between the end of
// InitInstallerLogging() and the beginning of EndInstallerLogging().
bool installer_logging_ = false;
TruncateResult TruncateLogFileIfNeeded(const base::FilePath& log_file) {
TruncateResult result = LOGFILE_UNTOUCHED;
int64 log_size = 0;
if (file_util::GetFileSize(log_file, &log_size) &&
log_size > kMaxInstallerLogFileSize) {
// Cause the old log file to be deleted when we are done with it.
const int file_flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ |
base::PLATFORM_FILE_SHARE_DELETE |
base::PLATFORM_FILE_DELETE_ON_CLOSE;
base::win::ScopedHandle old_log_file(
base::CreatePlatformFile(log_file, file_flags, NULL, NULL));
if (old_log_file.IsValid()) {
result = LOGFILE_DELETED;
base::FilePath tmp_log(log_file.value() + FILE_PATH_LITERAL(".tmp"));
// Note that file_util::Move will attempt to replace existing files.
if (file_util::Move(log_file, tmp_log)) {
int64 offset = log_size - kTruncatedInstallerLogFileSize;
std::string old_log_data(kTruncatedInstallerLogFileSize, 0);
int bytes_read = base::ReadPlatformFile(old_log_file,
offset,
&old_log_data[0],
kTruncatedInstallerLogFileSize);
if (bytes_read > 0 &&
(bytes_read == file_util::WriteFile(log_file,
&old_log_data[0],
bytes_read) ||
file_util::PathExists(log_file))) {
result = LOGFILE_TRUNCATED;
}
}
} else if (file_util::Delete(log_file, false)) {
// Couldn't get sufficient access to the log file, optimistically try to
// delete it.
result = LOGFILE_DELETED;
}
}
return result;
}
void InitInstallerLogging(const installer::MasterPreferences& prefs) {
if (installer_logging_)
return;
installer_logging_ = true;
bool value = false;
if (prefs.GetBool(installer::master_preferences::kDisableLogging,
&value) && value) {
return;
}
base::FilePath log_file_path(GetLogFilePath(prefs));
TruncateLogFileIfNeeded(log_file_path);
logging::LoggingSettings settings;
settings.logging_dest = logging::LOG_TO_FILE;
settings.log_file = log_file_path.value().c_str();
logging::InitLogging(settings);
if (prefs.GetBool(installer::master_preferences::kVerboseLogging,
&value) && value) {
logging::SetMinLogLevel(logging::LOG_VERBOSE);
} else {
logging::SetMinLogLevel(logging::LOG_ERROR);
}
// Enable ETW logging.
logging::LogEventProvider::Initialize(kSetupTraceProvider);
}
void EndInstallerLogging() {
logging::CloseLogFile();
installer_logging_ = false;
}
base::FilePath GetLogFilePath(const installer::MasterPreferences& prefs) {
std::string path;
prefs.GetString(installer::master_preferences::kLogFile, &path);
if (!path.empty()) {
return base::FilePath(UTF8ToWide(path));
}
std::wstring log_filename = prefs.install_chrome_frame() ?
L"chrome_frame_installer.log" : L"chrome_installer.log";
base::FilePath log_path;
if (PathService::Get(base::DIR_TEMP, &log_path)) {
log_path = log_path.Append(log_filename);
return log_path;
} else {
return base::FilePath(log_filename);
}
}
} // namespace installer
|
