blob: 4436ce6010233726c8a4f55b9264e525b06bfc9c [file] [log] [blame]
// Copyright 2018 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 "android_webview/browser/tracing/aw_trace_event_args_whitelist.h"
#include "base/bind.h"
#include "base/strings/pattern.h"
#include "base/strings/string_tokenizer.h"
#include "base/strings/string_util.h"
#include "base/trace_event/trace_event.h"
namespace {
struct WhitelistEntry {
const char* category_name;
const char* event_name;
const char* const* arg_name_filter;
};
const WhitelistEntry kEventArgsWhitelist[] = {
{"__metadata", "thread_name", nullptr},
{"__metadata", "process_name", nullptr},
{"__metadata", "process_uptime_seconds", nullptr},
{"__metadata", "stackFrames", nullptr},
{"__metadata", "typeNames", nullptr},
{nullptr, nullptr, nullptr}};
} // namespace
namespace android_webview {
// TODO(timvolodine): refactor this into base/ to avoid code duplication
// with chrome/common/trace_event_args_whitelist.cc, see crbug.com/805045.
bool IsTraceArgumentNameWhitelisted(const char* const* granular_filter,
const char* arg_name) {
for (int i = 0; granular_filter[i] != nullptr; ++i) {
if (base::MatchPattern(arg_name, granular_filter[i]))
return true;
}
return false;
}
bool IsTraceEventArgsWhitelisted(
const char* category_group_name,
const char* event_name,
base::trace_event::ArgumentNameFilterPredicate* arg_name_filter) {
DCHECK(arg_name_filter);
base::CStringTokenizer category_group_tokens(
category_group_name, category_group_name + strlen(category_group_name),
",");
while (category_group_tokens.GetNext()) {
const std::string& category_group_token = category_group_tokens.token();
for (int i = 0; kEventArgsWhitelist[i].category_name != nullptr; ++i) {
const WhitelistEntry& whitelist_entry = kEventArgsWhitelist[i];
DCHECK(whitelist_entry.event_name);
if (base::MatchPattern(category_group_token,
whitelist_entry.category_name) &&
base::MatchPattern(event_name, whitelist_entry.event_name)) {
if (whitelist_entry.arg_name_filter) {
*arg_name_filter = base::Bind(&IsTraceArgumentNameWhitelisted,
whitelist_entry.arg_name_filter);
}
return true;
}
}
}
return false;
}
} // namespace android_webview