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Create phphkp.php

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kflux 2014-02-24 20:54:44 +01:00
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gpg-mailgate-web/public_html/include/phphkp.php Normal file
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<?php
/*
*
* HKP Keyserver Interface for submitting public keys
* to the gpg-mailgate-web database directly from
* an OpenPGP client
*
* loosely based on ElTramo's phkp code
* http://el-tramo.be/software/phkp
*
* 2014 by Kiritan Flux
*
* Licensed under the GNU General Public License.
*
* check the README for necessary prerequisites
*
*/
//! OpenPGP client command
$PGP_COMMAND="gpg";
//! A dir where the PHP script has write access
$PGP_HOME="/var/www/vhosts/mailflux.net/.phkp";
//! The maximum size (in characters) of a submitted key.
//! Set to '0' to disable receiving of keys, and '-1' for no limit.
$MAX_KEYSIZE=102400;
if (ereg("/pks\/add",$_SERVER['REQUEST_URI']))
{
if ($MAX_KEYSIZE == -1 || strlen($_POST['keytext']) <= $MAX_KEYSIZE)
{
//write key into temporary file
file_put_contents( "$PGP_HOME/tmp", $_POST['keytext'] );
//run gpg --with-fingerprint to retreive information about the key from the keyfile
$result = shell_exec("$PGP_COMMAND --homedir $PGP_HOME --with-fingerprint $PGP_HOME/tmp");
//extract email addresses from the information
$pattern = '/[a-z0-9_\-\+]+@[a-z0-9\-]+\.([a-z]{2,3})(?:\.[a-z]{2})?/i';
preg_match_all($pattern, $result, $matches);
//for each email address assigned to the key, put intformation into the DB and send confirmation emails
foreach($matches[0] as $match)
{
//echo $match.': '.$_POST['keytext'];
requestPGP($match, $_POST['keytext']);
}
}
else
{
header("HTTP/1.0 403 Forbidden");
}
}
?>