Adjust copyrights years
<?php
/**
* SeekQuarry/Yioop --
* Open Source Pure PHP Search Engine, Crawler, and Indexer
*
* Copyright (C) 2009 - 2019 Chris Pollett chris@pollett.org
*
* LICENSE:
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* END LICENSE
*
* @author Chris Pollett chris@pollett.org
* @license https://www.gnu.org/licenses/ GPL3
* @link https://www.seekquarry.com/
* @copyright 2009 - 2019
* @filesource
*/
namespace seekquarry\yioop\controllers;
use seekquarry\yioop\configs as C;
use seekquarry\yioop\library\CrawlConstants;
use seekquarry\yioop\library\WebArchiveBundle;
/**
* Fetcher machines also act as archives for complete caches of web pages,
* this controller is used to handle access to these web page caches
*
* @author Chris Pollett
*/
class ArchiveController extends Controller implements CrawlConstants
{
/**
* The only legal activity this controller will accept is a request
* for the cache of a web page
* @var array
*/
public $activities = ["cache"];
/**
* Main method for this controller to handle requests. It first checks
* the request is valid, and then handles the corresponding activity
*
* For this controller the only activity is to handle a cache request
*/
public function processRequest()
{
$data = [];
/* do a quick test to see if this is a request seems like from a
legitimate machine
*/
if (!$this->checkRequest()) {return; }
$activity = $this->clean($_REQUEST['a'], "string");
$this->call($activity);
}
/**
* Retrieves the requested page from the WebArchiveBundle and echo it page,
* base64 encoded
*/
public function cache()
{
$offset = $this->clean($_REQUEST['offset'], "int");
$partition = $this->clean($_REQUEST['partition'], "int");
$crawl_time = $this->clean($_REQUEST['crawl_time'], "string");
$prefix = "";
if (isset($_REQUEST['instance_num'])) {
$prefix = $this->clean($_REQUEST['instance_num'], "int")."-";
}
if (file_exists(C\CRAWL_DIR.'/cache/'.$prefix . self::archive_base_name.
$crawl_time)) {
$web_archive = new WebArchiveBundle(
C\CRAWL_DIR.'/cache/'.$prefix . self::archive_base_name.
$crawl_time);
$page = $web_archive->getPage($offset, $partition);
echo base64_encode(serialize($page));
} else {
echo base64_encode(serialize(false));
}
}
}