diff options
Diffstat (limited to 'chromeos/network/network_event_log.cc')
| -rw-r--r-- | chromeos/network/network_event_log.cc | 440 |
1 files changed, 0 insertions, 440 deletions
diff --git a/chromeos/network/network_event_log.cc b/chromeos/network/network_event_log.cc deleted file mode 100644 index 3f6d123..0000000 --- a/chromeos/network/network_event_log.cc +++ /dev/null @@ -1,440 +0,0 @@ -// Copyright (c) 2012 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 "chromeos/network/network_event_log.h" - -#include <cmath> -#include <list> - -#include "base/files/file_path.h" -#include "base/json/json_string_value_serializer.h" -#include "base/json/json_writer.h" -#include "base/logging.h" -#include "base/memory/scoped_ptr.h" -#include "base/strings/string_tokenizer.h" -#include "base/strings/stringprintf.h" -#include "base/strings/utf_string_conversions.h" -#include "base/values.h" -#include "net/base/escape.h" - -namespace chromeos { -namespace network_event_log { - -namespace { - -std::string DateAndTimeWithMicroseconds(const base::Time& time) { - base::Time::Exploded exploded; - time.LocalExplode(&exploded); - // base::Time::Exploded does not include microseconds, but sometimes we need - // microseconds, so append '.' + usecs to the end of the formatted string. - int usecs = static_cast<int>(fmod(time.ToDoubleT() * 1000000, 1000000)); - return base::StringPrintf("%04d/%02d/%02d %02d:%02d:%02d.%06d", - exploded.year, - exploded.month, - exploded.day_of_month, - exploded.hour, - exploded.minute, - exploded.second, - usecs); -} - -std::string TimeWithSeconds(const base::Time& time) { - base::Time::Exploded exploded; - time.LocalExplode(&exploded); - return base::StringPrintf("%02d:%02d:%02d", - exploded.hour, - exploded.minute, - exploded.second); -} - -std::string TimeWithMillieconds(const base::Time& time) { - base::Time::Exploded exploded; - time.LocalExplode(&exploded); - return base::StringPrintf("%02d:%02d:%02d.%03d", - exploded.hour, - exploded.minute, - exploded.second, - exploded.millisecond); -} - -class NetworkEventLog; -NetworkEventLog* g_network_event_log = NULL; -size_t g_max_network_event_log_entries = 4000; -const char* kLogLevelName[] = {"Error", "User", "Event", "Debug"}; - -struct LogEntry { - LogEntry(const std::string& file, - int file_line, - LogLevel log_level, - const std::string& event, - const std::string& description); - - std::string ToString(bool show_time, - bool show_file, - bool show_level, - bool show_desc, - bool format_html) const; - void ToDictionary(base::DictionaryValue*) const; - - std::string GetNormalText(bool show_desc) const; - std::string GetHtmlText(bool show_desc) const; - std::string GetAsJSON() const; - - void SendToVLogOrErrorLog() const; - - bool ContentEquals(const LogEntry& other) const; - - std::string file; - int file_line; - LogLevel log_level; - std::string event; - std::string description; - base::Time time; - int count; -}; - -LogEntry::LogEntry(const std::string& file, - int file_line, - LogLevel log_level, - const std::string& event, - const std::string& description) - : file(file), - file_line(file_line), - log_level(log_level), - event(event), - description(description), - time(base::Time::Now()), - count(1) {} - -std::string LogEntry::ToString(bool show_time, - bool show_file, - bool show_level, - bool show_desc, - bool format_html) const { - std::string line; - if (show_time) - line += "[" + TimeWithMillieconds(time) + "] "; - if (show_level) { - const char* kLevelDesc[] = { - "ERROR", - "USER", - "EVENT", - "DEBUG" - }; - line += base::StringPrintf("%s: ", kLevelDesc[log_level]); - } - if (show_file) { - std::string filestr = format_html ? net::EscapeForHTML(file) : file; - line += base::StringPrintf("%s:%d ", file.c_str(), file_line); - } - line += format_html ? GetHtmlText(show_desc) : GetNormalText(show_desc); - if (count > 1) - line += base::StringPrintf(" (%d)", count); - return line; -} - -void LogEntry::ToDictionary(base::DictionaryValue* output) const { - output->SetString("timestamp", DateAndTimeWithMicroseconds(time)); - output->SetString("timestampshort", TimeWithSeconds(time)); - output->SetString("level", kLogLevelName[log_level]); - output->SetString("file", - base::StringPrintf("%s:%d ", file.c_str(), file_line)); - output->SetString("event", event); - output->SetString("description", description); -} - -std::string LogEntry::GetAsJSON() const { - base::DictionaryValue entry; - ToDictionary(&entry); - std::string json; - JSONStringValueSerializer serializer(&json); - if (!serializer.Serialize(entry)) { - LOG(ERROR) << "Failed to serialize to JSON"; - } - return json; -} - -std::string LogEntry::GetNormalText(bool show_desc) const { - std::string text = event; - if (show_desc && !description.empty()) - text += ": " + description; - return text; -} - -std::string LogEntry::GetHtmlText(bool show_desc) const { - std::string text; - if (log_level == LOG_LEVEL_DEBUG) - text += "<i>"; - else if (log_level == LOG_LEVEL_USER) - text += "<b>"; - else if (log_level == LOG_LEVEL_ERROR) - text += "<b><i>"; - - text += event; - if (show_desc && !description.empty()) - text += ": " + net::EscapeForHTML(description); - - if (log_level == LOG_LEVEL_DEBUG) - text += "</i>"; - else if (log_level == LOG_LEVEL_USER) - text += "</b>"; - else if (log_level == LOG_LEVEL_ERROR) - text += "</i></b>"; - return text; -} - -void LogEntry::SendToVLogOrErrorLog() const { - if (log_level != LOG_LEVEL_ERROR && !VLOG_IS_ON(1)) - return; - const bool show_time = true; - const bool show_file = true; - const bool show_level = false; - const bool show_desc = true; - const bool format_html = false; - std::string output = - ToString(show_time, show_file, show_level, show_desc, format_html); - if (log_level == LOG_LEVEL_ERROR) - LOG(ERROR) << output; - else - VLOG(1) << output; -} - -bool LogEntry::ContentEquals(const LogEntry& other) const { - return file == other.file && - file_line == other.file_line && - event == other.event && - description == other.description; -} - -void GetFormat(const std::string& format_string, - bool* show_time, - bool* show_file, - bool* show_level, - bool* show_desc, - bool* format_html, - bool* format_json) { - base::StringTokenizer tokens(format_string, ","); - *show_time = false; - *show_file = false; - *show_level = false; - *show_desc = false; - *format_html = false; - *format_json = false; - while (tokens.GetNext()) { - std::string tok(tokens.token()); - if (tok == "time") - *show_time = true; - if (tok == "file") - *show_file = true; - if (tok == "level") - *show_level = true; - if (tok == "desc") - *show_desc = true; - if (tok == "html") - *format_html = true; - if (tok == "json") - *format_json = true; - } -} - -typedef std::list<LogEntry> LogEntryList; - -class NetworkEventLog { - public: - NetworkEventLog() {} - ~NetworkEventLog() {} - - void AddLogEntry(const LogEntry& entry); - - std::string GetAsString(StringOrder order, - const std::string& format, - LogLevel max_level, - size_t max_events); - - LogEntryList& entries() { return entries_; } - - private: - LogEntryList entries_; - - DISALLOW_COPY_AND_ASSIGN(NetworkEventLog); -}; - -void NetworkEventLog::AddLogEntry(const LogEntry& entry) { - if (!entries_.empty()) { - LogEntry& last = entries_.back(); - if (last.ContentEquals(entry)) { - // Update count and time for identical events to avoid log spam. - ++last.count; - last.log_level = std::min(last.log_level, entry.log_level); - last.time = base::Time::Now(); - return; - } - } - if (entries_.size() >= g_max_network_event_log_entries) { - const size_t max_error_entries = g_max_network_event_log_entries / 2; - // Remove the first (oldest) non-error entry, or the oldest entry if more - // than half the entries are errors. - size_t error_count = 0; - for (LogEntryList::iterator iter = entries_.begin(); iter != entries_.end(); - ++iter) { - if (iter->log_level != LOG_LEVEL_ERROR) { - entries_.erase(iter); - break; - } - if (++error_count > max_error_entries) { - // Too many error entries, remove the oldest entry. - entries_.pop_front(); - break; - } - } - } - entries_.push_back(entry); - entry.SendToVLogOrErrorLog(); -} - -std::string NetworkEventLog::GetAsString(StringOrder order, - const std::string& format, - LogLevel max_level, - size_t max_events) { - if (entries_.empty()) - return "No Log Entries."; - - bool show_time, show_file, show_level, show_desc, format_html, format_json; - GetFormat(format, - &show_time, - &show_file, - &show_level, - &show_desc, - &format_html, - &format_json); - - std::string result; - base::ListValue log_entries; - if (order == OLDEST_FIRST) { - size_t offset = 0; - if (max_events > 0 && max_events < entries_.size()) { - // Iterate backwards through the list skipping uninteresting entries to - // determine the first entry to include. - size_t shown_events = 0; - size_t num_entries = 0; - for (LogEntryList::const_reverse_iterator riter = entries_.rbegin(); - riter != entries_.rend(); - ++riter) { - ++num_entries; - if (riter->log_level > max_level) - continue; - if (++shown_events >= max_events) - break; - } - offset = entries_.size() - num_entries; - } - for (LogEntryList::const_iterator iter = entries_.begin(); - iter != entries_.end(); - ++iter) { - if (offset > 0) { - --offset; - continue; - } - if (iter->log_level > max_level) - continue; - if (format_json) { - log_entries.AppendString((*iter).GetAsJSON()); - } else { - result += (*iter).ToString( - show_time, show_file, show_level, show_desc, format_html); - result += "\n"; - } - } - } else { - size_t nlines = 0; - // Iterate backwards through the list to show the most recent entries first. - for (LogEntryList::const_reverse_iterator riter = entries_.rbegin(); - riter != entries_.rend(); - ++riter) { - if (riter->log_level > max_level) - continue; - if (format_json) { - log_entries.AppendString((*riter).GetAsJSON()); - } else { - result += (*riter).ToString( - show_time, show_file, show_level, show_desc, format_html); - result += "\n"; - } - if (max_events > 0 && ++nlines >= max_events) - break; - } - } - if (format_json) { - JSONStringValueSerializer serializer(&result); - serializer.Serialize(log_entries); - } - - return result; -} - -} // namespace - -const LogLevel kDefaultLogLevel = LOG_LEVEL_EVENT; - -void Initialize() { - if (g_network_event_log) - delete g_network_event_log; // reset log - g_network_event_log = new NetworkEventLog(); -} - -void Shutdown() { - delete g_network_event_log; - g_network_event_log = NULL; -} - -bool IsInitialized() { return g_network_event_log != NULL; } - -namespace internal { - -size_t GetMaxLogEntries() { return g_max_network_event_log_entries; } - -void SetMaxLogEntries(size_t max_entries) { - g_max_network_event_log_entries = max_entries; - if (!g_network_event_log) - return; - while (g_network_event_log->entries().size() > max_entries) - g_network_event_log->entries().pop_front(); -} - -void AddEntry(const char* file, - int file_line, - LogLevel log_level, - const std::string& event, - const std::string& description) { - std::string filestr; - if (file) - filestr = base::FilePath(std::string(file)).BaseName().value(); - LogEntry entry(filestr, file_line, log_level, event, description); - if (!g_network_event_log) { - entry.SendToVLogOrErrorLog(); - return; - } - g_network_event_log->AddLogEntry(entry); -} - -} // namespace internal - -std::string GetAsString(StringOrder order, - const std::string& format, - LogLevel max_level, - size_t max_events) { - if (!g_network_event_log) - return "NetworkEventLog not initialized."; - return g_network_event_log->GetAsString(order, format, max_level, max_events); -} - -std::string ValueAsString(const base::Value& value) { - std::string vstr; - base::JSONWriter::WriteWithOptions( - &value, base::JSONWriter::OPTIONS_OMIT_BINARY_VALUES, &vstr); - return vstr.empty() ? "''" : vstr; -} - -} // namespace network_event_log -} // namespace chromeos |