Initial commit

2018-02-14 15:05:29 +09:00
commit 20f797d2f6
8093 changed files with 1360150 additions and 0 deletions
@@ -0,0 +1,114 @@
+// Copyright 2010 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Author: jmarantz@google.com (Joshua Marantz)
+// Author: sligocki@google.com (Shawn Ligocki)
+// Author: jefftk@google.com (Jeff Kaufman)
+
+// TODO(jefftk): share more of this code with apache's log_message_handler
+
+#include "log_message_handler.h"
+
+#include <unistd.h>
+
+#include <limits>
+#include <string>
+
+#include "base/debug/debugger.h"
+#include "base/debug/stack_trace.h"
+#include "base/logging.h"
+#include "net/instaweb/public/version.h"
+#include "pagespeed/kernel/base/string_util.h"
+
+// Make sure we don't attempt to use LOG macros here, since doing so
+// would cause us to go into an infinite log loop.
+#undef LOG
+#define LOG USING_LOG_HERE_WOULD_CAUSE_INFINITE_RECURSION
+
+namespace {
+
+ngx_log_t* ngx_log = NULL;
+
+ngx_uint_t GetNgxLogLevel(int severity) {
+  switch (severity) {
+    case logging::LOG_INFO:
+      return NGX_LOG_INFO;
+    case logging::LOG_WARNING:
+      return NGX_LOG_WARN;
+    case logging::LOG_ERROR:
+      return NGX_LOG_ERR;
+    case logging::LOG_ERROR_REPORT:
+    case logging::LOG_FATAL:
+      return NGX_LOG_ALERT;
+    default:  // For VLOG(s)
+      return NGX_LOG_DEBUG;
+  }
+}
+
+bool LogMessageHandler(int severity, const char* file, int line,
+                       size_t message_start, const GoogleString& str) {
+  ngx_uint_t this_log_level = GetNgxLogLevel(severity);
+
+  GoogleString message = str;
+  if (severity == logging::LOG_FATAL) {
+    if (base::debug::BeingDebugged()) {
+      base::debug::BreakDebugger();
+    } else {
+      base::debug::StackTrace trace;
+      std::ostringstream stream;
+      trace.OutputToStream(&stream);
+      message.append(stream.str());
+    }
+  }
+
+  // Trim the newline off the end of the message string.
+  size_t last_msg_character_index = message.length() - 1;
+  if (message[last_msg_character_index] == '\n') {
+    message.resize(last_msg_character_index);
+  }
+
+  ngx_log_error(this_log_level, ngx_log, 0, "[ngx_pagespeed %s] %s",
+                net_instaweb::kModPagespeedVersion,
+                message.c_str());
+
+  if (severity == logging::LOG_FATAL) {
+    // Crash the process to generate a dump.
+    base::debug::BreakDebugger();
+  }
+
+  return true;
+}
+
+}  // namespace
+
+
+namespace net_instaweb {
+
+namespace log_message_handler {
+
+
+void Install(ngx_log_t* log_in) {
+  ngx_log = log_in;
+  logging::SetLogMessageHandler(&LogMessageHandler);
+
+  // All VLOG(2) and higher will be displayed as DEBUG logs if the nginx log
+  // level is DEBUG.
+  if (ngx_log->log_level >= NGX_LOG_DEBUG) {
+    logging::SetMinLogLevel(-2);
+  }
+}
+
+}  // namespace log_message_handler
+
+}  // namespace net_instaweb