1 // Copyright 2014 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.
5 #include "chrome/browser/media/webrtc_log_util.h"
7 #include "base/files/file_enumerator.h"
8 #include "base/files/file_util.h"
9 #include "base/logging.h"
10 #include "base/time/time.h"
11 #include "chrome/browser/browser_process.h"
12 #include "chrome/browser/media/webrtc_log_list.h"
13 #include "chrome/browser/profiles/profile.h"
14 #include "chrome/browser/profiles/profile_manager.h"
15 #include "content/public/browser/browser_thread.h"
19 const int kDaysToKeepLogs = 5;
21 // Remove any empty entries from the log list. One line is one log entry, see
22 // WebRtcLogUploader::AddLocallyStoredLogInfoToUploadListFile for more
23 // information about the format.
24 void RemoveEmptyEntriesInLogList(std::string* log_list) {
25 static const char kEmptyLine[] = ",,\n";
28 pos = log_list->find(kEmptyLine, pos);
29 if (pos == std::string::npos)
31 DCHECK(pos == 0 || (*log_list)[pos - 1] == '\n');
32 log_list->erase(pos, arraysize(kEmptyLine) - 1);
39 void WebRtcLogUtil::DeleteOldWebRtcLogFiles(const base::FilePath& log_dir) {
40 DeleteOldAndRecentWebRtcLogFiles(log_dir, base::Time::Max());
44 void WebRtcLogUtil::DeleteOldAndRecentWebRtcLogFiles(
45 const base::FilePath& log_dir,
46 const base::Time& delete_begin_time) {
47 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::FILE));
49 if (!base::PathExists(log_dir)) {
50 // This will happen if no logs have been stored or uploaded.
51 DVLOG(3) << "Could not find directory: " << log_dir.value();
55 const base::Time now = base::Time::Now();
56 const base::TimeDelta time_to_keep_logs =
57 base::TimeDelta::FromDays(kDaysToKeepLogs);
59 base::FilePath log_list_path =
60 WebRtcLogList::GetWebRtcLogListFileForDirectory(log_dir);
62 const bool update_log_list = base::PathExists(log_list_path);
63 if (update_log_list) {
64 bool read_ok = base::ReadFileToString(log_list_path, &log_list);
68 base::FileEnumerator log_files(log_dir, false, base::FileEnumerator::FILES);
69 bool delete_ok = true;
70 for (base::FilePath name = log_files.Next(); !name.empty();
71 name = log_files.Next()) {
72 if (name == log_list_path)
74 base::FileEnumerator::FileInfo file_info(log_files.GetInfo());
75 base::TimeDelta file_age = now - file_info.GetLastModifiedTime();
76 if (file_age > time_to_keep_logs ||
77 (!delete_begin_time.is_max() &&
78 file_info.GetLastModifiedTime() > delete_begin_time)) {
79 if (!base::DeleteFile(name, false))
82 // Remove the local ID from the log list file. The ID is guaranteed to be
84 std::string id = file_info.GetName().RemoveExtension().MaybeAsASCII();
85 size_t id_pos = log_list.find(id);
86 if (id_pos == std::string::npos)
88 log_list.erase(id_pos, id.size());
93 LOG(WARNING) << "Could not delete all old WebRTC logs.";
95 RemoveEmptyEntriesInLogList(&log_list);
97 if (update_log_list) {
98 int written = base::WriteFile(log_list_path, &log_list[0], log_list.size());
99 DPCHECK(written == static_cast<int>(log_list.size()));
104 void WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles() {
105 DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
107 ProfileInfoCache& profile_cache =
108 g_browser_process->profile_manager()->GetProfileInfoCache();
109 size_t profiles_count = profile_cache.GetNumberOfProfiles();
110 for (size_t i = 0; i < profiles_count; ++i) {
111 content::BrowserThread::PostTask(
112 content::BrowserThread::FILE,
114 base::Bind(&DeleteOldWebRtcLogFiles,
115 WebRtcLogList::GetWebRtcLogDirectoryForProfile(
116 profile_cache.GetPathOfProfileAtIndex(i))));