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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "chrome/browser/chromeos/logging.h" |
| 6 |
| 7 #include "base/bind.h" |
| 8 #include "base/command_line.h" |
| 9 #include "base/files/file_path.h" |
| 10 #include "base/logging.h" |
| 11 #include "base/task_scheduler/post_task.h" |
| 12 #include "chrome/common/logging_chrome.h" |
| 13 #include "content/public/browser/browser_thread.h" |
| 14 |
| 15 namespace logging { |
| 16 |
| 17 namespace { |
| 18 |
| 19 // This should be true for exactly the period between the end of |
| 20 // InitChromeLogging() and the beginning of CleanupChromeLogging(). |
| 21 bool chrome_logging_redirected_ = false; |
| 22 |
| 23 void SymlinkSetUp(const base::CommandLine& command_line, |
| 24 const base::FilePath& log_path, |
| 25 const base::FilePath& target_path) { |
| 26 DCHECK_CURRENTLY_ON(content::BrowserThread::UI); |
| 27 |
| 28 // ChromeOS always logs through the symlink, so it shouldn't be |
| 29 // deleted if it already exists. |
| 30 logging::LoggingSettings settings; |
| 31 settings.logging_dest = DetermineLoggingDestination(command_line); |
| 32 settings.log_file = log_path.value().c_str(); |
| 33 if (!logging::InitLogging(settings)) { |
| 34 DLOG(ERROR) << "Unable to initialize logging to " << log_path.value(); |
| 35 base::PostTaskWithTraits( |
| 36 FROM_HERE, {base::MayBlock()}, |
| 37 base::Bind(&RemoveSymlinkAndLog, log_path, target_path)); |
| 38 } else { |
| 39 chrome_logging_redirected_ = true; |
| 40 } |
| 41 } |
| 42 |
| 43 } // namespace |
| 44 |
| 45 void RedirectChromeLogging(const base::CommandLine& command_line) { |
| 46 DCHECK_CURRENTLY_ON(content::BrowserThread::UI); |
| 47 |
| 48 if (chrome_logging_redirected_) { |
| 49 // TODO: Support multiple active users. http://crbug.com/230345 |
| 50 LOG(WARNING) << "NOT redirecting logging for multi-profiles case."; |
| 51 return; |
| 52 } |
| 53 |
| 54 DCHECK(!chrome_logging_redirected_) |
| 55 << "Attempted to redirect logging when it was already initialized."; |
| 56 |
| 57 // Redirect logs to the session log directory, if set. Otherwise |
| 58 // defaults to the profile dir. |
| 59 const base::FilePath log_path = GetSessionLogFile(command_line); |
| 60 |
| 61 // Always force a new symlink when redirecting. |
| 62 base::PostTaskWithTraitsAndReplyWithResult( |
| 63 FROM_HERE, {base::MayBlock()}, |
| 64 base::BindOnce(&SetUpSymlinkIfNeeded, log_path, true), |
| 65 base::BindOnce(&SymlinkSetUp, command_line, log_path)); |
| 66 } |
| 67 |
| 68 } // namespace logging |
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