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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. | |
4 | |
5 #include "chrome/browser/media/webrtc_log_util.h" | |
6 | |
7 #include <stddef.h> | |
8 | |
9 #include <string> | |
10 #include <vector> | |
11 | |
12 #include "base/files/file_enumerator.h" | |
13 #include "base/files/file_util.h" | |
14 #include "base/logging.h" | |
15 #include "base/macros.h" | |
16 #include "base/time/time.h" | |
17 #include "chrome/browser/browser_process.h" | |
18 #include "chrome/browser/media/webrtc_log_list.h" | |
19 #include "chrome/browser/profiles/profile.h" | |
20 #include "chrome/browser/profiles/profile_attributes_entry.h" | |
21 #include "chrome/browser/profiles/profile_attributes_storage.h" | |
22 #include "chrome/browser/profiles/profile_manager.h" | |
23 #include "content/public/browser/browser_thread.h" | |
24 | |
25 namespace { | |
26 | |
27 const int kDaysToKeepLogs = 5; | |
28 | |
29 // Remove any empty entries from the log list. One line is one log entry, see | |
30 // WebRtcLogUploader::AddLocallyStoredLogInfoToUploadListFile for more | |
31 // information about the format. | |
32 void RemoveEmptyEntriesInLogList(std::string* log_list) { | |
33 static const char kEmptyLine[] = ",,\n"; | |
34 size_t pos = 0; | |
35 do { | |
36 pos = log_list->find(kEmptyLine, pos); | |
37 if (pos == std::string::npos) | |
38 break; | |
39 DCHECK(pos == 0 || (*log_list)[pos - 1] == '\n'); | |
40 log_list->erase(pos, arraysize(kEmptyLine) - 1); | |
41 } while (true); | |
42 } | |
43 | |
44 } // namespace | |
45 | |
46 // static | |
47 void WebRtcLogUtil::DeleteOldWebRtcLogFiles(const base::FilePath& log_dir) { | |
48 DeleteOldAndRecentWebRtcLogFiles(log_dir, base::Time::Max()); | |
49 } | |
50 | |
51 // static | |
52 void WebRtcLogUtil::DeleteOldAndRecentWebRtcLogFiles( | |
53 const base::FilePath& log_dir, | |
54 const base::Time& delete_begin_time) { | |
55 DCHECK_CURRENTLY_ON(content::BrowserThread::FILE); | |
56 | |
57 if (!base::PathExists(log_dir)) { | |
58 // This will happen if no logs have been stored or uploaded. | |
59 DVLOG(3) << "Could not find directory: " << log_dir.value(); | |
60 return; | |
61 } | |
62 | |
63 const base::Time now = base::Time::Now(); | |
64 const base::TimeDelta time_to_keep_logs = | |
65 base::TimeDelta::FromDays(kDaysToKeepLogs); | |
66 | |
67 base::FilePath log_list_path = | |
68 WebRtcLogList::GetWebRtcLogListFileForDirectory(log_dir); | |
69 std::string log_list; | |
70 const bool update_log_list = base::PathExists(log_list_path); | |
71 if (update_log_list) { | |
72 bool read_ok = base::ReadFileToString(log_list_path, &log_list); | |
73 DPCHECK(read_ok); | |
74 } | |
75 | |
76 base::FileEnumerator log_files(log_dir, false, base::FileEnumerator::FILES); | |
77 bool delete_ok = true; | |
78 for (base::FilePath name = log_files.Next(); !name.empty(); | |
79 name = log_files.Next()) { | |
80 if (name == log_list_path) | |
81 continue; | |
82 base::FileEnumerator::FileInfo file_info(log_files.GetInfo()); | |
83 base::TimeDelta file_age = now - file_info.GetLastModifiedTime(); | |
84 if (file_age > time_to_keep_logs || | |
85 (!delete_begin_time.is_max() && | |
86 file_info.GetLastModifiedTime() > delete_begin_time)) { | |
87 if (!base::DeleteFile(name, false)) | |
88 delete_ok = false; | |
89 | |
90 // Remove the local ID from the log list file. The ID is guaranteed to be | |
91 // unique. | |
92 std::string id = file_info.GetName().RemoveExtension().MaybeAsASCII(); | |
93 size_t id_pos = log_list.find(id); | |
94 if (id_pos == std::string::npos) | |
95 continue; | |
96 log_list.erase(id_pos, id.size()); | |
97 } | |
98 } | |
99 | |
100 if (!delete_ok) | |
101 LOG(WARNING) << "Could not delete all old WebRTC logs."; | |
102 | |
103 RemoveEmptyEntriesInLogList(&log_list); | |
104 | |
105 if (update_log_list) { | |
106 int written = base::WriteFile(log_list_path, &log_list[0], log_list.size()); | |
107 DPCHECK(written == static_cast<int>(log_list.size())); | |
108 } | |
109 } | |
110 | |
111 // static | |
112 void WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles() { | |
113 DCHECK_CURRENTLY_ON(content::BrowserThread::UI); | |
114 | |
115 std::vector<ProfileAttributesEntry*> entries = | |
116 g_browser_process->profile_manager()->GetProfileAttributesStorage(). | |
117 GetAllProfilesAttributes(); | |
118 for (ProfileAttributesEntry* entry : entries) { | |
119 content::BrowserThread::PostTask( | |
120 content::BrowserThread::FILE, | |
121 FROM_HERE, | |
122 base::Bind(&DeleteOldWebRtcLogFiles, | |
123 WebRtcLogList::GetWebRtcLogDirectoryForProfile( | |
124 entry->GetPath()))); | |
125 } | |
126 } | |
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