1 | <?php |
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2 | # -- BEGIN LICENSE BLOCK --------------------------------------- |
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3 | # |
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4 | # This file is part of Antispam, a plugin for Dotclear 2. |
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5 | # |
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6 | # Copyright (c) 2003-2013 Olivier Meunier & Association Dotclear |
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7 | # Licensed under the GPL version 2.0 license. |
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8 | # See LICENSE file or |
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9 | # http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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10 | # |
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11 | # -- END LICENSE BLOCK ----------------------------------------- |
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12 | if (!defined('DC_RC_PATH')) { return; } |
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13 | |
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14 | class dcFilterIpLookup extends dcSpamFilter |
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15 | { |
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16 | public $name = 'IP Lookup'; |
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17 | public $has_gui = true; |
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18 | |
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19 | private $default_bls = 'sbl-xbl.spamhaus.org , bsb.spamlookup.net'; |
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20 | |
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21 | public function __construct($core) |
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22 | { |
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23 | parent::__construct($core); |
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24 | |
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25 | if (defined('DC_DNSBL_SUPER') && DC_DNSBL_SUPER && !$core->auth->isSuperAdmin()) { |
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26 | $this->has_gui = false; |
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27 | } |
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28 | } |
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29 | |
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30 | protected function setInfo() |
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31 | { |
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32 | $this->description = __('Checks sender IP address against DNSBL servers'); |
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33 | } |
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34 | |
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35 | public function getStatusMessage($status,$comment_id) |
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36 | { |
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37 | return sprintf(__('Filtered by %1$s with server %2$s.'),$this->guiLink(),$status); |
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38 | } |
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39 | |
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40 | public function isSpam($type,$author,$email,$site,$ip,$content,$post_id,&$status) |
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41 | { |
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42 | if (!$ip || long2ip(ip2long($ip)) != $ip) { |
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43 | return; |
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44 | } |
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45 | |
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46 | $bls = $this->getServers(); |
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47 | $bls = preg_split('/\s*,\s*/',$bls); |
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48 | |
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49 | foreach ($bls as $bl) { |
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50 | if ($this->dnsblLookup($ip,$bl)) { |
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51 | // Pass by reference $status to contain matching DNSBL |
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52 | $status = $bl; |
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53 | return true; |
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54 | } |
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55 | } |
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56 | } |
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57 | |
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58 | public function gui($url) |
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59 | { |
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60 | $bls = $this->getServers(); |
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61 | |
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62 | if (isset($_POST['bls'])) |
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63 | { |
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64 | try { |
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65 | $this->core->blog->settings->addNamespace('antispam'); |
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66 | $this->core->blog->settings->antispam->put('antispam_dnsbls',$_POST['bls'],'string','Antispam DNSBL servers',true,false); |
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67 | http::redirect($url.'&upd=1'); |
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68 | } catch (Exception $e) { |
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69 | $core->error->add($e->getMessage()); |
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70 | } |
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71 | } |
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72 | |
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73 | /* DISPLAY |
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74 | ---------------------------------------------- */ |
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75 | $res = ''; |
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76 | |
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77 | $res .= |
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78 | '<form action="'.html::escapeURL($url).'" method="post" class="fieldset">'. |
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79 | '<h3>' . __('IP Lookup servers') . '</h3>'. |
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80 | '<p><label for="bls">'.__('Add here a coma separated list of servers.').'</label>'. |
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81 | form::textarea('bls',40,3,html::escapeHTML($bls),'maximal'). |
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82 | '</p>'. |
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83 | '<p><input type="submit" value="'.__('Save').'" /></p>'. |
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84 | $this->core->formNonce().'</p>'. |
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85 | '</form>'; |
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86 | |
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87 | return $res; |
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88 | } |
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89 | |
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90 | private function getServers() |
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91 | { |
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92 | $bls = $this->core->blog->settings->antispam->antispam_dnsbls; |
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93 | if ($bls === null) { |
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94 | $this->core->blog->settings->addNamespace('antispam'); |
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95 | $this->core->blog->settings->antispam->put('antispam_dnsbls',$this->default_bls,'string','Antispam DNSBL servers',true,false); |
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96 | return $this->default_bls; |
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97 | } |
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98 | |
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99 | return $bls; |
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100 | } |
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101 | |
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102 | private function dnsblLookup($ip,$bl) |
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103 | { |
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104 | $revIp = implode('.',array_reverse(explode('.',$ip))); |
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105 | |
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106 | $host = $revIp.'.'.$bl.'.'; |
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107 | if (gethostbyname($host) != $host) { |
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108 | return true; |
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109 | } |
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110 | |
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111 | return false; |
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112 | } |
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113 | } |
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114 | ?> |
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