securemail/securemail.php

   1 <?php\r
   2 /**\r
   3  * Name: Secure Mail\r
   4  * Description: Send notification mail encrypted with user-defined public GPG key\r
   5  * Version: 1.0\r
   6  * Author: Fabio Comuni <http://kirgroup.com/profile/fabrixxm>\r
   7  */\r
   8  require_once 'php-gpg/libs/GPG.php';\r
   9 \r
  10  function securemail_install() {\r
  11     register_hook('plugin_settings', 'addon/securemail/securemail.php', 'securemail_settings');\r
  12     register_hook('plugin_settings_post', 'addon/securemail/securemail.php', 'securemail_settings_post');\r
  13 \r
  14     register_hook('emailer_send_prepare',  'addon/securemail/securemail.php', 'securemail_emailer_send_prepare');\r
  15 \r
  16     logger("installed securemail");\r
  17 }\r
  18 \r
  19 function securemail_uninstall() {\r
  20     unregister_hook('plugin_settings', 'addon/securemail/securemail.php', 'securemail_settings');\r
  21     unregister_hook('plugin_settings_post', 'addon/securemail/securemail.php', 'securemail_settings_post');\r
  22 \r
  23     unregister_hook('emailer_send_prepare',  'addon/securemail/securemail.php', 'securemail_emailer_send_prepare');\r
  24 \r
  25     logger("removed securemail");\r
  26 }\r
  27 \r
  28 \r
  29 function securemail_settings(&$a,&$s){\r
  30     if(! local_user())\r
  31             return;\r
  32 \r
  33     $enable_checked = (intval(get_pconfig(local_user(),'securemail','enable')) ? ' checked="checked"' : '');\r
  34     $publickey = get_pconfig(local_user(),'securemail','pkey');\r
  35 \r
  36     # all of this should be in a template...\r
  37     $s .= '<span id="settings_securemail_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_securemail_expanded\'); openClose(\'settings_securemail_inflated\');">';\r
  38     $s .= '<h3>' . t('"Secure Mail" Settings').'</h3>';\r
  39     $s .= '</span>';\r
  40     $s .= '<div id="settings_securemail_expanded" class="settings-block" style="display: none;">';\r
  41     $s .= '<span class="fakelink" onclick="openClose(\'settings_securemail_expanded\'); openClose(\'settings_securemail_inflated\');">';\r
  42     $s .= '<h3>' . t('"Secure Mail" Settings').'</h3>';\r
  43     $s .= '</span>';\r
  44     $s .= '<div id="securemail-wrapper">';\r
  45 \r
  46     $s .= '<input id="securemail-enable" type="checkbox" name="securemail-enable" value="1"'.$enable_checked.' />';\r
  47     $s .= '<label id="securemail-enable-label" for="securemail-enable">'.t('Enable Secure Mail').'</label>';\r
  48 \r
  49     $s .= '<div class="clear"></div>';\r
  50     $s .= '<label id="securemail-label" for="securemail-pkey">'.t('Public key').' </label>';\r
  51     $s .= '<textarea id="securemail-pkey" name="securemail-pkey">'.$publickey.'</textarea>';\r
  52     $s .= '</div><div class="clear"></div>';\r
  53 \r
  54     $s .= '<div class="settings-submit-wrapper" ><input type="submit" id="securemail-submit" name="securemail-submit" class="settings-submit" value="' . t('Save Settings') . '" /></div>';\r
  55     $s .= '</div>';\r
  56 \r
  57     return;\r
  58 }\r
  59 function securemail_settings_post(&$a, &$b){\r
  60 \r
  61     if(! local_user())\r
  62         return;\r
  63 \r
  64     if($_POST['securemail-submit']) {\r
  65                 set_pconfig(local_user(),'securemail','pkey',trim($_POST['securemail-pkey']));\r
  66                 $enable = ((x($_POST,'securemail-enable')) ? 1 : 0);\r
  67                 set_pconfig(local_user(),'securemail','enable', $enable);\r
  68                 info( t('Secure Mail Settings saved.') . EOL);\r
  69     }\r
  70 }\r
  71 \r
  72 function securemail_emailer_send_prepare(&$a, &$b) {\r
  73     if (!x($b,'uid')) return;\r
  74         $uid = $b['uid'];\r
  75 \r
  76     $enable_checked = get_pconfig($uid,'securemail','enable');\r
  77     if (!$enable_checked) return;\r
  78 \r
  79     $public_key_ascii = get_pconfig($uid,'securemail','pkey');\r
  80 \r
  81     $gpg = new GPG();\r
  82 \r
  83     # create an instance of a GPG public key object based on ASCII key\r
  84     $pub_key = new GPG_Public_Key($public_key_ascii);\r
  85 \r
  86     # using the key, encrypt your plain text using the public key\r
  87     $txt_encrypted = $gpg->encrypt($pub_key,$b['textVersion']);\r
  88     $html_encrypted = $gpg->encrypt($pub_key,$b['htmlVersion']);\r
  89 \r
  90     $b['textVersion'] = $txt_encrypted;\r
  91     $b['htmlVersion'] = $html_encrypted;\r
  92     #var_dump($b);\r
  93 }\r