| // Copyright (c) 2011 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 "chrome/browser/net/net_log_logger.h" |
| |
| #include <stdio.h> |
| |
| #include "base/file_util.h" |
| #include "base/json/json_writer.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/threading/thread_restrictions.h" |
| #include "base/values.h" |
| #include "chrome/browser/ui/webui/net_internals_ui.h" |
| |
| NetLogLogger::NetLogLogger(const FilePath &log_path) |
| : ThreadSafeObserverImpl(net::NetLog::LOG_ALL_BUT_BYTES) { |
| if (!log_path.empty()) { |
| base::ThreadRestrictions::ScopedAllowIO allow_io; |
| file_.Set(file_util::OpenFile(log_path, "w")); |
| |
| // Write constants to the output file. This allows loading files that have |
| // different source and event types, as they may be added and removed |
| // between Chrome versions. |
| scoped_ptr<Value> value(NetInternalsUI::GetConstants()); |
| std::string json; |
| base::JSONWriter::Write(value.get(), false, &json); |
| fprintf(file_.get(), "{\"constants\": %s,\n", json.c_str()); |
| fprintf(file_.get(), "\"events\": [\n"); |
| } |
| } |
| |
| NetLogLogger::~NetLogLogger() { |
| } |
| |
| void NetLogLogger::OnAddEntry(net::NetLog::EventType type, |
| const base::TimeTicks& time, |
| const net::NetLog::Source& source, |
| net::NetLog::EventPhase phase, |
| net::NetLog::EventParameters* params) { |
| scoped_ptr<Value> value( |
| net::NetLog::EntryToDictionaryValue( |
| type, time, source, phase, params, false)); |
| // Don't pretty print, so each JSON value occupies a single line, with no |
| // breaks (Line breaks in any text field will be escaped). Using strings |
| // instead of integer identifiers allows logs from older versions to be |
| // loaded, though a little extra parsing has to be done when loading a log. |
| std::string json; |
| base::JSONWriter::Write(value.get(), false, &json); |
| if (!file_.get()) { |
| VLOG(1) << json; |
| } else { |
| fprintf(file_.get(), "%s,\n", json.c_str()); |
| } |
| } |