From 3b99cca6c4784ffabbe188850970ece59c5ef94e Mon Sep 17 00:00:00 2001 From: Garvin Hicking Date: Tue, 3 Apr 2018 10:29:42 +0200 Subject: [PATCH] Insert "Anonymize IP" functionality --- serendipity_event_dsgvo_gdpr/lang_en.inc.php | 5 +- .../serendipity_event_dsgvo_gdpr.php | 95 ++++++++++++++++++- serendipity_event_dsgvo_gdpr/todo.txt | 2 - 3 files changed, 98 insertions(+), 4 deletions(-) diff --git a/serendipity_event_dsgvo_gdpr/lang_en.inc.php b/serendipity_event_dsgvo_gdpr/lang_en.inc.php index 1ec4e062..6efa3209 100644 --- a/serendipity_event_dsgvo_gdpr/lang_en.inc.php +++ b/serendipity_event_dsgvo_gdpr/lang_en.inc.php @@ -118,4 +118,7 @@ Certain plugins can use the session cookie to store additional temporary data.Additionally, the following plugins are currently enabled and this is their automatically generated manifest:

-'); \ No newline at end of file +'); + +@define('PLUGIN_EVENT_DSGVO_GDPR_ANONYMIZE', 'Anonymize IPs?'); +@define('PLUGIN_EVENT_DSGVO_GDPR_ANONYMIZE_DESC', 'If enabled, the last parts of the IP address (ipv4 and ipv6) will be replaced with "0". This means, all places where serendipity saves or utilizes the IP address of the visitor (also for anti-spam methods) the recorded IP will not be the actual IP of the user. In case of abuse, you will not be able to tell the actual IP used for a comment, for example.'); diff --git a/serendipity_event_dsgvo_gdpr/serendipity_event_dsgvo_gdpr.php b/serendipity_event_dsgvo_gdpr/serendipity_event_dsgvo_gdpr.php index c2c9574b..bfa127e8 100644 --- a/serendipity_event_dsgvo_gdpr/serendipity_event_dsgvo_gdpr.php +++ b/serendipity_event_dsgvo_gdpr/serendipity_event_dsgvo_gdpr.php @@ -38,12 +38,13 @@ class serendipity_event_dsgvo_gdpr extends serendipity_event 'entry_display' => true, 'genpage' => true, 'frontend_footer' => true, + 'frontend_configure' => true, 'css' => true ) ); - $propbag->add('configuration', array('commentform_checkbox', 'commentform_text', 'gdpr_url', 'gdpr_info', 'gdpr_content', 'show_in_footer', 'show_in_footer_text', 'cookie_consent', 'cookie_consent_text', 'cookie_consent_path')); + $propbag->add('configuration', array('commentform_checkbox', 'commentform_text', 'gdpr_url', 'gdpr_info', 'gdpr_content', 'show_in_footer', 'show_in_footer_text', 'cookie_consent', 'cookie_consent_text', 'cookie_consent_path', 'anonymizeIp')); $propbag->add('config_groups', array( PLUGIN_EVENT_DSGVO_GDPR_MENU => array('gdpr_url', 'gdpr_info', 'gdpr_content'), PLUGIN_EVENT_DSGVO_GDPR_COOKIE_MENU => array('cookie_consent', 'cookie_consent_text', 'cookie_consent_path') @@ -87,6 +88,13 @@ class serendipity_event_dsgvo_gdpr extends serendipity_event $propbag->add('default', 'true'); break; + case 'anonymizeIp': + $propbag->add('type','boolean'); + $propbag->add('name', PLUGIN_EVENT_DSGVO_GDPR_ANONYMIZE); + $propbag->add('description', PLUGIN_EVENT_DSGVO_GDPR_ANONYMIZE_DESC); + $propbag->add('default', 'true'); + break; + case 'show_in_footer': $propbag->add('type','boolean'); $propbag->add('name', PLUGIN_EVENT_DSGVO_GDPR_SHOW_IN_FOOTER); @@ -259,6 +267,13 @@ class serendipity_event_dsgvo_gdpr extends serendipity_event if (isset($hooks[$event])) { switch($event) { + case 'frontend_configure': + if (serendipity_db_bool($this->get_config('anonymizeIp'))) { + $_SERVER['REMOTE_ADDR'] = IpAnonymizer::anonymizeIp($_SERVER['REMOTE_ADDR']); + } + return true; + break; + case 'frontend_saveComment': if (serendipity_db_bool($this->get_config('commentform_checkbox'))) { if ($addData['type'] == 'NORMAL') { @@ -354,4 +369,82 @@ class serendipity_event_dsgvo_gdpr extends serendipity_event } } +/* +https://github.com/geertw/php-ip-anonymizer/blob/master/LICENSE + +MIT License + +Copyright (c) 2016 Geert Wirken + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. + */ +class IpAnonymizer { + /** + * @var string IPv4 netmask used to anonymize IPv4 address. + */ + public $ipv4NetMask = "255.255.255.0"; + /** + * @var string IPv6 netmask used to anonymize IPv6 address. + */ + public $ipv6NetMask = "ffff:ffff:ffff:ffff:0000:0000:0000:0000"; + /** + * Anonymize an IPv4 or IPv6 address. + * + * @param $address string IP address that must be anonymized + * @return string The anonymized IP address. Returns an empty string when the IP address is invalid. + */ + public static function anonymizeIp($address) { + $anonymizer = new IpAnonymizer(); + return $anonymizer->anonymize($address); + } + /** + * Anonymize an IPv4 or IPv6 address. + * + * @param $address string IP address that must be anonymized + * @return string The anonymized IP address. Returns an empty string when the IP address is invalid. + */ + public function anonymize($address) { + $packedAddress = inet_pton($address); + if (strlen($packedAddress) == 4) { + return $this->anonymizeIPv4($address); + } elseif (strlen($packedAddress) == 16) { + return $this->anonymizeIPv6($address); + } else { + return ""; + } + } + /** + * Anonymize an IPv4 address + * @param $address string IPv4 address + * @return string Anonymized address + */ + public function anonymizeIPv4($address) { + return inet_ntop(inet_pton($address) & inet_pton($this->ipv4NetMask)); + } + /** + * Anonymize an IPv6 address + * @param $address string IPv6 address + * @return string Anonymized address + */ + public function anonymizeIPv6($address) { + return inet_ntop(inet_pton($address) & inet_pton($this->ipv6NetMask)); + } +} + /* vim: set sts=4 ts=4 expandtab : */ diff --git a/serendipity_event_dsgvo_gdpr/todo.txt b/serendipity_event_dsgvo_gdpr/todo.txt index dfdade82..78f92cc2 100644 --- a/serendipity_event_dsgvo_gdpr/todo.txt +++ b/serendipity_event_dsgvo_gdpr/todo.txt @@ -6,8 +6,6 @@ serendipity_request (oder so) _session remote_addr -* Config option to anonymize IPs (simply write $_SERVER['REMOTE_ADDR'] to something else) - * Patch s9y core: Emit warning when the plugin is not installed. Allow user to remove that warning if he doesnt want the plugin. * Patch s9y core: Create config option that prevents session_start() on the frontend [if possible]