src/pagespeed/kernel/http/bot_checker.gperf

%{
// bot_checker.cc is automatically generated from bot_checker.gperf.
// Author: fangfei@google.com

#include "pagespeed/kernel/http/bot_checker.h"

#include "pagespeed/kernel/base/string_util.h"

namespace net_instaweb {
%}
%compare-strncmp
%define class-name RobotDetect
%define lookup-function-name Lookup
%global-table
%includes
%language=C++
%readonly-tables

%%
### These names are either application names or domain names of BOTs.
### This is not a complete list of BOTs names -- just the ones we want
### to scan for now.
about.ask.com
A6-Indexer
Apache-HttpClient
Arachni
AsyncHttpClient
BackRub
BingPreview
expo9
facebookexternalhit
facebookplatform
Feedfetcher-Google
Genieo
Google-StructuredDataTestingTool
HttpClient
Lycos
Mediapartners-Google
PHP
proximic
Python
Python-urllib
RPT-HTTPClient
Ruby
WordPress
Yahoo!
%%

bool BotChecker::Lookup(const StringPiece& user_agent) {
  // Check if the user agent is empty, or contains bot / crawl / spider.
  if (user_agent.empty() ||
      FindIgnoreCase(user_agent, "bot") != StringPiece::npos ||
      FindIgnoreCase(user_agent, "crawl") != StringPiece::npos ||
      FindIgnoreCase(user_agent, "spider") != StringPiece::npos) {
    return true;
  }
  // check whether the whole string is in database
  if (RobotDetect::Lookup(user_agent.data(), user_agent.size()) != NULL) {
    return true;
  }
  // get the application_name/domain_name/email
  const char separator[] = " /,;+";
  StringPieceVector names;
  SplitStringPieceToVector(user_agent, separator, &names, true);
  for (int i = 0, n = names.size(); i < n; ++i) {
    if (RobotDetect::Lookup(names[i].data(),
                            names[i].size()) != NULL) {
      return true;
    }
  }
  return false;
}

}  // namespace net_instaweb