anidb page downloader

<?php
/*
 * Качаем данные с anidb
 */
 set_time_limit(0);
 $folder       ='/tmp';// change save folder
 $cookie_string=':NO:COOKIE:';// insert here default_tabs, adbsess, anidbsettings & adbuin
 @mkdir($folder);
 $sad_contype  ='text/plain; ';
 header('Content-type: '.$sad_contype);

 $max_id =10500;// change this constant

// Берём список прокси
 $ch     =curl_init('http://example.com/proxy/get.php?show_ip=0&order=rand');// lol, change this to any trusted proxy list
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 $buf    =curl_exec($ch);
 $json   =json_decode($buf);
 if (gettype($json)!='object'){
  echo 'Can not get proxy list';
  return;
 }
 if ($json->status!=0){
  echo 'Can not get proxy list. Status #'.$json->status;
  return;
 }


// Создаём треды
 $threads=array();
 foreach ($json->list as $proxy){
  $threads[]=(object)array(
   'proxy'     =>$proxy,
   'user_agent'=>'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.104 Safari/537.36',// array_rand($useragents),
   'last_get'  =>0,// Последнее время использования
   'next_get'  =>0,// Время следующего использования
  );
 }

// Начинаем парсить
 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 3);
 curl_setopt($ch, CURLOPT_TIMEOUT,        3);

 while (true){
  $k =0;
  $u =false;
  while ($k++<100000){
   $id=mt_rand(1, $max_id);
   $filename=$folder.'/dmp-'.$id.'.html';
   if (!file_exists($filename)){
    $u=true;break;
   }
   if (filemtime($filename)<time()-7*24*3600){
    $u=true;break;
   }
  }

  if (!$u){
   echo 'There is no undownloaded files. Bye bye';
   return;
  }

  echo "\nanime #".$id;
  $min_last_get_id=null;
  foreach ($threads as $thread_id => &$thread){
   if ($thread->next_get>microtime(true)){continue;}
   if ($min_last_get_id===null){
    $min_last_get_id=$thread_id;
   }else{
    if ($thread->last_get<$threads[$min_last_get_id]->last_get){
     $min_last_get_id=$thread_id;
    }
   }
  }

  if ($min_last_get_id===null){
   echo "\nNot a single thread is alive";
   flush();
   sleep(10);
  }
  $thread=&$threads[$min_last_get_id];
  echo ", thread #".$min_last_get_id.' (his last get was '.
   (($thread->last_get==0) ? 'never' : gmdate('Y-m-d H:i:sO', $thread->last_get)).')';
  flush();

  curl_setopt($ch, CURLOPT_PROXY,     $thread->proxy);
  curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
  curl_setopt($ch, CURLOPT_URL,       'http://anidb.net/perl-bin/animedb.pl?show=anime&aid='.$id);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array(
   'Cookie: '.$cookie_string,
   'Cache-Control: max-age=0',
   'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
   'User-agent: '.$thread->user_agent,
   'Referer: http://anidb.net/perl-bin/animedb.pl?show=main',
   'Accept-Encoding: gzip,deflate,sdch',
   'Accept-Language: ru,en;q=0.8',
  ));

  $a=microtime(true);
  $buf=curl_exec($ch);
  $b=microtime(true);
  $thread->last_get=$b;
  $thread->next_get=$thread->last_get+10;
  echo '; bytes='.strlen($buf).', '.round($b-$a,2).' sec';

  if (strlen($buf)==0){
   echo "; can not load that page, null response. Reload";flush();
   $thread->next_get=$thread->last_get+300;
   continue;
  }
  flush();
  $buf=@gzdecode($buf);
  echo ', real size is '.strlen($buf).' bytes';

  if (strlen($buf)<1000){
   echo "; Too few bytes. Reload";flush();
   $thread->next_get=$thread->last_get+300;
   continue;
  }
  if (preg_match('|YOU HAVE BEEN AUTO\\-BANNED|i', $buf)){
   echo "; This proxy is banned. Reload";flush();
   $thread->next_get=$thread->last_get+6*3600+10;
   continue;
  }
  if (preg_match('|Unknown anime id|i', $buf)){
   echo "; This anime is not exists. It is okay";flush();
  }
  if (preg_match('|show\\=signup|i', $buf)){
   echo "; Warning, we have signed out!";flush();
  }

  // Сохраняем
  file_put_contents($filename, $buf);
 }




?>