Allow chrome logging to pivot inside the users encrypted home dir
Allow chrome logging to pivot inside the users encrypted home dir on
chrome os, post-login. We also set the inital logs up to be
timestamped, so that we don't lose them when crashes happen.
BUG=None
TEST=Enable chrome logging on chrome os, log in, and check for chrome logs in /home/chronos/user
Review URL: http://codereview.chromium.org/2723007
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@49689 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/common/logging_chrome.cc b/chrome/common/logging_chrome.cc
index 4120aa1..9954cca 100644
--- a/chrome/common/logging_chrome.cc
+++ b/chrome/common/logging_chrome.cc
@@ -39,6 +39,7 @@
#include "base/file_util.h"
#include "base/logging.h"
#include "base/path_service.h"
+#include "base/time.h"
#include "base/utf_string_conversions.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_switches.h"
@@ -97,15 +98,7 @@
namespace logging {
-void InitChromeLogging(const CommandLine& command_line,
- OldFileDeletionState delete_old_log_file) {
- DCHECK(!chrome_logging_initialized_) <<
- "Attempted to initialize logging when it was already initialized.";
-
-#if defined(OS_POSIX) && defined(IPC_MESSAGE_LOG_ENABLED)
- IPC::Logging::SetLoggerFunctions(g_log_function_mapping);
-#endif
-
+LoggingDestination DetermineLogMode(const CommandLine& command_line) {
// only use OutputDebugString in debug mode
#ifdef NDEBUG
bool enable_logging = false;
@@ -133,9 +126,67 @@
} else {
log_mode = logging::LOG_NONE;
}
+ return log_mode;
+}
- logging::InitLogging(GetLogFileName().value().c_str(),
- log_mode,
+#if defined(OS_CHROMEOS)
+void SetUpSymlink(const FilePath& symlink_path, const FilePath& new_log_path) {
+ if (access(symlink_path.value().c_str(), F_OK) == 0 &&
+ file_util::Delete(symlink_path, false)) {
+ PLOG(ERROR) << "Unable to unlink " << symlink_path.value();
+ }
+ if (symlink(new_log_path.value().c_str(),
+ symlink_path.value().c_str()) == -1) {
+ PLOG(ERROR) << "Unable to create symlink " << symlink_path.value()
+ << " pointing at " << new_log_path.value();
+ }
+}
+
+FilePath TimestampLog(const FilePath& new_log_file, base::Time timestamp) {
+ base::Time::Exploded time_deets;
+ timestamp.LocalExplode(&time_deets);
+ std::string suffix = StringPrintf("_%02d%02d%02d-%02d%02d%02d",
+ time_deets.year,
+ time_deets.month,
+ time_deets.day_of_month,
+ time_deets.hour,
+ time_deets.minute,
+ time_deets.second);
+ FilePath new_log_path = new_log_file.InsertBeforeExtension(suffix);
+ SetUpSymlink(new_log_file, new_log_path);
+
+ return new_log_path;
+}
+
+void RedirectChromeLogging(const FilePath& new_log_dir,
+ const CommandLine& command_line,
+ OldFileDeletionState delete_old_log_file) {
+ FilePath log_file_name = GetLogFileName().BaseName();
+ FilePath new_log_path =
+ TimestampLog(new_log_dir.Append(log_file_name), base::Time::Now());
+ InitLogging(new_log_path.value().c_str(),
+ DetermineLogMode(command_line),
+ logging::LOCK_LOG_FILE,
+ delete_old_log_file);
+}
+#endif
+
+void InitChromeLogging(const CommandLine& command_line,
+ OldFileDeletionState delete_old_log_file) {
+ DCHECK(!chrome_logging_initialized_) <<
+ "Attempted to initialize logging when it was already initialized.";
+
+#if defined(OS_POSIX) && defined(IPC_MESSAGE_LOG_ENABLED)
+ IPC::Logging::SetLoggerFunctions(g_log_function_mapping);
+#endif
+
+ FilePath log_path = GetLogFileName();
+#if defined(OS_CHROMEOS)
+ log_path = TimestampLog(log_path, base::Time::Now());
+#endif
+
+ logging::InitLogging(log_path.value().c_str(),
+ DetermineLogMode(command_line),
logging::LOCK_LOG_FILE,
delete_old_log_file);
