<?
///////////////////////////////////////////////////////////////////////////
//
//    DNSBL - Spam IP address checker.
//    Copyright (C) 2011 Alexey A.Znayev
//
//    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 <http://www.gnu.org/licenses/>.
//
//    Alexey A.Znayev, znaeff@mail.ru, http://xbsoft.org, http://xbsoft.ru
//
///////////////////////////////////////////////////////////////////////////

// This file contains public class DNSBL

// This class performs IP address check in spam blocking lists as described
// on http://ru.wikipedia.org/wiki/RBL

class DNSBL {

    private $_aCheckers = array(	// list of checkers available for individual checking
	    'spamhaus' 	=> array('.zen.spamhaus.org', true), 	//available for group checking with 'all' key
	    'spamcop' 	=> array('.bl.spamcop.net',   true),	//available for group checking with 'all' key
	    'dsbl' 	=> array('.list.dsbl.org',    false),	//not available for group checking with 'all' key
	    'ordb' 	=> array('.relays.ordb.org',  false),	//not available for group checking with 'all' key
	    'sorbs' 	=> array('.dnsbl.sorbs.net',  false),	//not available for group checking with 'all' key
	    'njabl' 	=> array('.dnsbl.njabl.org',  false)	//not available for group checking with 'all' key
    ); // AZ - 1. Key 'all' is illegal
       // AZ - 2. Most of spammer IP addresses is covered by 'spamhaus' & 'spamcop' (and they are fast),
       //         some of the rest may not work sometimes, you can make them group checking available after individual testing
    
    private $_sDefaultChecker = 'spamhaus';

///////////////////////////////////////////////////////////////////////////
// CheckSpamIP - check IP for spam in checkers : given, default or all available for group checking (may be slow)
// parameters:
// string $ip - ip address
// string $checker - checker name or 'all' or nothing
// returns:
// true when IP exitsts in spam-lists of $checker or at least one of all checkers
// false when not or when ip address is local or not correct
    public function CheckSpamIP($ip, $checker = ''){
	if(empty($ip)) return false;
	if(preg_match('/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/', $ip) != 1) return false;
	$octets = explode('.', $ip);
	if($octets[0] == '127') return false;
	if($octets[0] == '10') return false;
	if($octets[0] == '192' && $octets[0] == '168') return false;
	if($octets[0] == '169' && $octets[0] == '254') return false;	// ms windows
	if((int)$octets[0] > 255 || (int)$octets[1] > 255 || (int)$octets[2] > 255 || (int)$octets[3] > 255 ) return false;
	$ret_val = false;
	$PTR = implode(array_reverse($octets), '.');
	if($checker === 'all'){
	    foreach(array_values($this->_aCheckers) as $c){
		if($c[1]){
		    $ret_val = $ret_val || $this->_CheckDNSAnswer(dns_get_record($PTR . $c[0], DNS_A));
		}
		if($ret_val) break;
	    }
	}else if(array_key_exists($checker, $this->_aCheckers)){
    	    $ret_val = $this->_CheckDNSAnswer(dns_get_record($PTR . $this->_aCheckers[$checker][0], DNS_A));
	}else{
    	    $ret_val = $this->_CheckDNSAnswer(dns_get_record($PTR . $this->_aCheckers[$this->_sDefaultChecker][0], DNS_A));
	}
	return $ret_val;
    }

///////////////////////////////////////////////////////////////////////////
// GetCheckers - gets list of available checker names
// returns:
// array of strings
    public function GetCheckers(){
	return array_keys($this->_aCheckers);
    }        

///////////////////////////////////////////////////////////////////////////
// GetGroupCheckers - gets list of checker names available for group checking with 'all' key
// returns:
// array of strings
    public function GetGroupCheckers(){
	$ret_val = array();
	foreach(array_keys($this->_aCheckers) as $k) if($this->_aCheckers[$k][1]) array_push($ret_val, $k);
	return $ret_val;
    }        

///////////////////////////////////////////////////////////////////////////
// GetDefaultChecker - gets default checker name
// returns:
// string
    public function GetDefaultChecker(){
	return $this->_sDefaultChecker;
    }

///////////////////////////////////////////////////////////////////////////
// SetDefaultChecker - sets default checker name
// parameters:
// string $new_checker - new default checker name
// returns:
// true when success
// false when failed ($new_checker is not in the list of available checker names)
    public function SetDefaultChecker($new_checker){
	if(array_key_exists($new_checker, $this->_aCheckers)){
	    $this->_sDefaultChecker = $new_checker;
	    return true;
	}else{
	    return false;
	}
    }

///////////////////////////////////////////////////////////////////////////
// EnableGroupChecking - sets checker available for group checking
// parameters:
// string $checker - checker name
// returns:
// true when success ($checker is included)
// false when failed ($checker is not in the list of available checker names)
    public function EnableGroupChecking($checker){
	if(array_key_exists($checker, $this->_aCheckers)){
	    $this->_aCheckers[$checker][1] = true;
	    return true;
	}else{
	    return false;
	}
    }

///////////////////////////////////////////////////////////////////////////
// DisableGroupChecking - sets checker not available for group checking
// parameters:
// string $checker - checker name
// returns:
// true when success ($checker is excluded)
// false when failed ($checker is not in the list of available checker names)
    public function DisableGroupChecking($checker){
	if(array_key_exists($checker, $this->_aCheckers)){
	    $this->_aCheckers[$checker][1] = false;
	    return true;
	}else{
	    return false;
	}
    }

// private methods

///////////////////////////////////////////////////////////////////////////
// _CheckDNSAnswer - checks DNS-server answer for 127.0.0.* values
// returns:
// true when success
// false when failed
    private function _CheckDNSAnswer($dns_answer){
	if(!is_array($dns_answer)) return false;
	$len = count($dns_answer);
	if($len <= 0) return false;
	for($i=0; $i<$len; $i++){
	    $obj = $dns_answer[$i];
	    if(!(is_object($obj) || is_array($obj))) return false;
	    $ip_str = $obj['ip'];
	    if(!is_string($ip_str)) return false;
	    $pos = strpos($ip_str, '127.0.0.');
	    if($pos !== false) return true;
	}
	return false;
    }        

} // end of class DNSBL

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			<h1 class="page-title">
				Monthly Archives: <span>June 2015</span>			</h1>


			<div id="post-3143" class="post-3143 post type-post status-publish format-standard hentry category-uncategorized">
			<h2 class="entry-title"><a href="https://blog.fabian-affolter.ch/file-notifications-for-home-assistant/" title="Permalink to File notifications for Home Assistant" rel="bookmark">File notifications for Home Assistant</a></h2>

			<div class="entry-meta">
				<span class="meta-prep meta-prep-author">Posted on</span> <a href="https://blog.fabian-affolter.ch/file-notifications-for-home-assistant/" title="19:52" rel="bookmark"><span class="entry-date">June 22, 2015</span></a> <span class="meta-sep">by</span> <span class="author vcard"><a class="url fn n" href="https://blog.fabian-affolter.ch/author/fab/" title="View all posts by Fabian Affolter">Fabian Affolter</a></span>			</div><!-- .entry-meta -->
			
<div class="entry-summary">
<p>Well, the syslog notifications are nice but sometimes it&#8217;s nice if it&#8217;s a bit simpler. If you are running Home Assistant in an isolated environment then the file notify platform could be for you. All notifications are stored in a &hellip;...</a></p>	
</div><!-- .entry-summary -->
			
			
			<div class="entry-utility">
									<span class="cat-links">
						<span class="entry-utility-prep entry-utility-prep-cat-links">Posted in</span> <a href="https://blog.fabian-affolter.ch/category/uncategorized/" rel="category tag">General</a>					</span>
					<span class="meta-sep">|</span>
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			<div id="post-3146" class="post-3146 post type-post status-publish format-standard hentry category-uncategorized">
			<h2 class="entry-title"><a href="https://blog.fabian-affolter.ch/systemmonitor-sensor/" title="Permalink to Systemmonitor sensor" rel="bookmark">Systemmonitor sensor</a></h2>

			<div class="entry-meta">
				<span class="meta-prep meta-prep-author">Posted on</span> <a href="https://blog.fabian-affolter.ch/systemmonitor-sensor/" title="12:32" rel="bookmark"><span class="entry-date">June 22, 2015</span></a> <span class="meta-sep">by</span> <span class="author vcard"><a class="url fn n" href="https://blog.fabian-affolter.ch/author/fab/" title="View all posts by Fabian Affolter">Fabian Affolter</a></span>			</div><!-- .entry-meta -->
			
<div class="entry-summary">
<p>The systemmonitor sensor of Home Assistant got a little update. This sensor is no able to display 19 different values about the local system. Please check the documentation for the full picture about the available options....</a></p>	
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									<span class="cat-links">
						<span class="entry-utility-prep entry-utility-prep-cat-links">Posted in</span> <a href="https://blog.fabian-affolter.ch/category/uncategorized/" rel="category tag">General</a>					</span>
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			<div id="post-3141" class="post-3141 post type-post status-publish format-standard hentry category-uncategorized">
			<h2 class="entry-title"><a href="https://blog.fabian-affolter.ch/forecast-io-sensor-for-home-assistant/" title="Permalink to Forecast.io sensor for Home Assistant" rel="bookmark">Forecast.io sensor for Home Assistant</a></h2>

			<div class="entry-meta">
				<span class="meta-prep meta-prep-author">Posted on</span> <a href="https://blog.fabian-affolter.ch/forecast-io-sensor-for-home-assistant/" title="21:19" rel="bookmark"><span class="entry-date">June 20, 2015</span></a> <span class="meta-sep">by</span> <span class="author vcard"><a class="url fn n" href="https://blog.fabian-affolter.ch/author/fab/" title="View all posts by Fabian Affolter">Fabian Affolter</a></span>			</div><!-- .entry-meta -->
			
<div class="entry-summary">
<p>Of course is one sensor for the weather not enough, beside the OpenWeatherMap sensor is now also a Forecast.io sensor available for Home Assistant. Check the documentation for setup....</a></p>	
</div><!-- .entry-summary -->
			
			
			<div class="entry-utility">
									<span class="cat-links">
						<span class="entry-utility-prep entry-utility-prep-cat-links">Posted in</span> <a href="https://blog.fabian-affolter.ch/category/uncategorized/" rel="category tag">General</a>					</span>
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			<div id="post-3139" class="post-3139 post type-post status-publish format-standard hentry category-uncategorized">
			<h2 class="entry-title"><a href="https://blog.fabian-affolter.ch/syslog-notifications-for-home-assistant/" title="Permalink to Syslog notifications for Home Assistant" rel="bookmark">Syslog notifications for Home Assistant</a></h2>

			<div class="entry-meta">
				<span class="meta-prep meta-prep-author">Posted on</span> <a href="https://blog.fabian-affolter.ch/syslog-notifications-for-home-assistant/" title="23:38" rel="bookmark"><span class="entry-date">June 4, 2015</span></a> <span class="meta-sep">by</span> <span class="author vcard"><a class="url fn n" href="https://blog.fabian-affolter.ch/author/fab/" title="View all posts by Fabian Affolter">Fabian Affolter</a></span>			</div><!-- .entry-meta -->
			
<div class="entry-summary">
<p>The latest addition to Home Assistant is the possibility to send notifications to your local syslog. Could be useful if you need a saver place to store events. Details about the configuration can be found in the documentation....</a></p>	
</div><!-- .entry-summary -->
			
			
			<div class="entry-utility">
									<span class="cat-links">
						<span class="entry-utility-prep entry-utility-prep-cat-links">Posted in</span> <a href="https://blog.fabian-affolter.ch/category/uncategorized/" rel="category tag">General</a>					</span>
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			<div id="post-3135" class="post-3135 post type-post status-publish format-standard hentry category-uncategorized">
			<h2 class="entry-title"><a href="https://blog.fabian-affolter.ch/new-stuff-for-home-assistant/" title="Permalink to New stuff for Home Assistant" rel="bookmark">New stuff for Home Assistant</a></h2>

			<div class="entry-meta">
				<span class="meta-prep meta-prep-author">Posted on</span> <a href="https://blog.fabian-affolter.ch/new-stuff-for-home-assistant/" title="17:08" rel="bookmark"><span class="entry-date">June 4, 2015</span></a> <span class="meta-sep">by</span> <span class="author vcard"><a class="url fn n" href="https://blog.fabian-affolter.ch/author/fab/" title="View all posts by Fabian Affolter">Fabian Affolter</a></span>			</div><!-- .entry-meta -->
			
<div class="entry-summary">
<p>My latest addition to Home Assistant is the possibility to send notifications by email. I think that now the most important notification channels are covered. OK, sending text messages (aka SMS) with a directly attached cell phone or let HA &hellip; ...</a></p>	
</div><!-- .entry-summary -->
			
			
			<div class="entry-utility">
									<span class="cat-links">
						<span class="entry-utility-prep entry-utility-prep-cat-links">Posted in</span> <a href="https://blog.fabian-affolter.ch/category/uncategorized/" rel="category tag">General</a>					</span>
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	</tr>
	</thead>

	<tfoot>
	<tr>
		<td colspan="3" id="prev"><a href="https://blog.fabian-affolter.ch/2015/05/">&laquo; May</a></td>
		<td class="pad">&nbsp;</td>
		<td colspan="3" id="next"><a href="https://blog.fabian-affolter.ch/2015/07/">Jul &raquo;</a></td>
	</tr>
	</tfoot>

	<tbody>
	<tr><td>1</td><td>2</td><td>3</td><td><a href="https://blog.fabian-affolter.ch/2015/06/04/" aria-label="Posts published on June 4, 2015">4</a></td><td>5</td><td>6</td><td>7</td>
	</tr>
	<tr>
		<td>8</td><td>9</td><td>10</td><td>11</td><td>12</td><td>13</td><td>14</td>
	</tr>
	<tr>
		<td>15</td><td>16</td><td>17</td><td>18</td><td>19</td><td><a href="https://blog.fabian-affolter.ch/2015/06/20/" aria-label="Posts published on June 20, 2015">20</a></td><td>21</td>
	</tr>
	<tr>
		<td><a href="https://blog.fabian-affolter.ch/2015/06/22/" aria-label="Posts published on June 22, 2015">22</a></td><td>23</td><td>24</td><td>25</td><td>26</td><td>27</td><td>28</td>
	</tr>
	<tr>
		<td>29</td><td>30</td>
		<td class="pad" colspan="5">&nbsp;</td>
	</tr>
	</tbody>
	</table></div></li><li id="categories-2" class="widget-container widget_categories"><h3 class="widget-title">Categories</h3>		<ul>
	<li class="cat-item cat-item-16"><a href="https://blog.fabian-affolter.ch/category/alpine-linux/" >Alpine Linux</a>
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	<li class="cat-item cat-item-15"><a href="https://blog.fabian-affolter.ch/category/ip-telephony/" >IP Telephony</a>
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	<li class="cat-item cat-item-5"><a href="https://blog.fabian-affolter.ch/category/security/" >Security</a>
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	<li class="cat-item cat-item-9"><a href="https://blog.fabian-affolter.ch/category/xmpp/" >XMPP</a>
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	<li><a href='https://blog.fabian-affolter.ch/2011/09/'>September 2011</a>&nbsp;(13)</li>
	<li><a href='https://blog.fabian-affolter.ch/2011/08/'>August 2011</a>&nbsp;(12)</li>
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	<li><a href='https://blog.fabian-affolter.ch/2011/06/'>June 2011</a>&nbsp;(35)</li>
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	<li><a href='https://blog.fabian-affolter.ch/2011/02/'>February 2011</a>&nbsp;(34)</li>
	<li><a href='https://blog.fabian-affolter.ch/2011/01/'>January 2011</a>&nbsp;(14)</li>
	<li><a href='https://blog.fabian-affolter.ch/2010/12/'>December 2010</a>&nbsp;(12)</li>
	<li><a href='https://blog.fabian-affolter.ch/2010/11/'>November 2010</a>&nbsp;(27)</li>
	<li><a href='https://blog.fabian-affolter.ch/2010/10/'>October 2010</a>&nbsp;(38)</li>
	<li><a href='https://blog.fabian-affolter.ch/2010/09/'>September 2010</a>&nbsp;(16)</li>
	<li><a href='https://blog.fabian-affolter.ch/2010/08/'>August 2010</a>&nbsp;(21)</li>
	<li><a href='https://blog.fabian-affolter.ch/2010/07/'>July 2010</a>&nbsp;(12)</li>
	<li><a href='https://blog.fabian-affolter.ch/2010/06/'>June 2010</a>&nbsp;(15)</li>
	<li><a href='https://blog.fabian-affolter.ch/2010/05/'>May 2010</a>&nbsp;(11)</li>
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	<li><a href='https://blog.fabian-affolter.ch/2009/12/'>December 2009</a>&nbsp;(5)</li>
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	<li><a href='https://blog.fabian-affolter.ch/2009/08/'>August 2009</a>&nbsp;(6)</li>
	<li><a href='https://blog.fabian-affolter.ch/2009/07/'>July 2009</a>&nbsp;(4)</li>
	<li><a href='https://blog.fabian-affolter.ch/2009/06/'>June 2009</a>&nbsp;(12)</li>
	<li><a href='https://blog.fabian-affolter.ch/2009/05/'>May 2009</a>&nbsp;(5)</li>
	<li><a href='https://blog.fabian-affolter.ch/2009/04/'>April 2009</a>&nbsp;(8)</li>
	<li><a href='https://blog.fabian-affolter.ch/2009/03/'>March 2009</a>&nbsp;(7)</li>
	<li><a href='https://blog.fabian-affolter.ch/2009/02/'>February 2009</a>&nbsp;(10)</li>
	<li><a href='https://blog.fabian-affolter.ch/2009/01/'>January 2009</a>&nbsp;(18)</li>
	<li><a href='https://blog.fabian-affolter.ch/2008/12/'>December 2008</a>&nbsp;(9)</li>
	<li><a href='https://blog.fabian-affolter.ch/2008/11/'>November 2008</a>&nbsp;(13)</li>
	<li><a href='https://blog.fabian-affolter.ch/2008/10/'>October 2008</a>&nbsp;(18)</li>
	<li><a href='https://blog.fabian-affolter.ch/2008/09/'>September 2008</a>&nbsp;(25)</li>
	<li><a href='https://blog.fabian-affolter.ch/2008/08/'>August 2008</a>&nbsp;(25)</li>
	<li><a href='https://blog.fabian-affolter.ch/2008/07/'>July 2008</a>&nbsp;(27)</li>
	<li><a href='https://blog.fabian-affolter.ch/2008/06/'>June 2008</a>&nbsp;(13)</li>
	<li><a href='https://blog.fabian-affolter.ch/2008/05/'>May 2008</a>&nbsp;(34)</li>
	<li><a href='https://blog.fabian-affolter.ch/2008/04/'>April 2008</a>&nbsp;(28)</li>
	<li><a href='https://blog.fabian-affolter.ch/2008/03/'>March 2008</a>&nbsp;(22)</li>
	<li><a href='https://blog.fabian-affolter.ch/2008/02/'>February 2008</a>&nbsp;(24)</li>
	<li><a href='https://blog.fabian-affolter.ch/2008/01/'>January 2008</a>&nbsp;(18)</li>
	<li><a href='https://blog.fabian-affolter.ch/2007/12/'>December 2007</a>&nbsp;(19)</li>
	<li><a href='https://blog.fabian-affolter.ch/2007/11/'>November 2007</a>&nbsp;(27)</li>
	<li><a href='https://blog.fabian-affolter.ch/2007/10/'>October 2007</a>&nbsp;(36)</li>
	<li><a href='https://blog.fabian-affolter.ch/2007/09/'>September 2007</a>&nbsp;(26)</li>
	<li><a href='https://blog.fabian-affolter.ch/2007/08/'>August 2007</a>&nbsp;(27)</li>
	<li><a href='https://blog.fabian-affolter.ch/2007/07/'>July 2007</a>&nbsp;(32)</li>
	<li><a href='https://blog.fabian-affolter.ch/2007/06/'>June 2007</a>&nbsp;(28)</li>
	<li><a href='https://blog.fabian-affolter.ch/2007/05/'>May 2007</a>&nbsp;(32)</li>
	<li><a href='https://blog.fabian-affolter.ch/2007/04/'>April 2007</a>&nbsp;(17)</li>
	<li><a href='https://blog.fabian-affolter.ch/2007/03/'>March 2007</a>&nbsp;(13)</li>
	<li><a href='https://blog.fabian-affolter.ch/2007/02/'>February 2007</a>&nbsp;(5)</li>
	<li><a href='https://blog.fabian-affolter.ch/2007/01/'>January 2007</a>&nbsp;(2)</li>
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