forked from extern/egroupware
255 lines
7.3 KiB
PHP
Executable File
255 lines
7.3 KiB
PHP
Executable File
<?php
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/**
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* EGroupware addressbook: Contacts
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*
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* @link http://www.egroupware.org
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* @author Cornelius Weiss <egw@von-und-zu-weiss.de>
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* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @author Joerg Lehrke <jlehrke@noc.de>
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* @package addressbook
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* @copyright (c) 2005-16 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @copyright (c) 2005/6 by Cornelius Weiss <egw@von-und-zu-weiss.de>
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @version $Id$
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*/
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use EGroupware\Api;
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/**
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* Business object for addressbook
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*
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* Currently this only contains PGP stuff, which needs to be called via Ajax
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*/
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class addressbook_bo extends Api\Contacts
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{
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static public $pgp_key_regexp = '/-----BEGIN PGP PUBLIC KEY BLOCK-----.*-----END PGP PUBLIC KEY BLOCK-----\r?\n/s';
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/**
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* Search addressbook for PGP public keys of given recipients
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*
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* EMail addresses are lowercased to make search case-insensitive
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*
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* @param string|int|array $recipients (array of) email addresses or numeric account-ids
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* @return array email|account_id => key pairs
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*/
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public function get_pgp_keys($recipients)
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{
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if (!$recipients) return array();
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if (!is_array($recipients)) $recipients = array($recipients);
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$criteria = $result = array();
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foreach($recipients as &$recipient)
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{
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if (is_numeric($recipient))
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{
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$criteria['egw_addressbook.account_id'][] = (int)$recipient;
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}
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else
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{
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$criteria['contact_email'][] = $recipient = strtolower($recipient);
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}
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}
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foreach($this->search($criteria, array('account_id', 'contact_email', 'contact_pubkey'), '', '', '', false, 'OR', false,
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"contact_pubkey LIKE '%-----BEGIN PGP PUBLIC KEY BLOCK-----%'") as $contact)
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{
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$matches = null;
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if (preg_match(self::$pgp_key_regexp, $contact['pubkey'], $matches))
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{
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$contact['email'] = strtolower($contact['email']);
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if (empty($criteria['account_id']) || in_array($contact['email'], $recipients))
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{
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$result[$contact['email']] = $matches[0];
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}
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else
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{
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$result[$contact['account_id']] = $matches[0];
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}
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}
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}
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return $result;
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}
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/**
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* Keyserver URL and CA to verify ssl connection
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*/
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const KEYSERVER = 'https://hkps.pool.sks-keyservers.net/pks/lookup?op=get&exact=on&search=';
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const KEYSERVER_CA = '/addressbook/doc/sks-keyservers.netCA.pem';
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/**
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* Search keyserver for PGP public keys
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*
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* @param int|string|array $recipients (array of) email addresses or numeric account-ids
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* @param array $result =array()
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*/
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public static function get_pgp_keyserver($recipients, array $result=array())
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{
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foreach($recipients as $recipient)
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{
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$id = $recipient;
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if (is_numeric($recipient))
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{
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$recipient = $GLOBALS['egw']->accounts->id2name($recipient, 'account_email');
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}
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$matches = null;
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if (($response = file_get_contents(self::KEYSERVER.urlencode($recipient), false, stream_context_create(array(
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'ssl' => array(
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'verify_peer' => true,
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'cafile' => EGW_SERVER_ROOT.self::KEYSERVER_CA,
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)
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)))) && preg_match(self::$pgp_key_regexp, $response, $matches))
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{
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$result[$id] = $matches[0];
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}
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}
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return $result;
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}
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/**
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* Search addressbook for PGP public keys of given recipients
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*
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* EMail addresses are lowercased to make search case-insensitive
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*
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* @param string|int|array $recipients (array of) email addresses or numeric account-ids
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* @return array email|account_id => key pairs
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*/
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public function ajax_get_pgp_keys($recipients)
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{
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if (!$recipients) return array();
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if (!is_array($recipients)) $recipients = array($recipients);
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$result = $this->get_pgp_keys($recipients);
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if (($missing = array_diff($recipients, array_keys($result))))
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{
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$result = self::get_pgp_keyserver($missing, $result);
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}
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//error_log(__METHOD__."(".array2string($recipients).") returning ".array2string($result));
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egw_json_response::get()->data($result);
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}
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/**
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* Set PGP keys for given email or account_id, if user has necessary rights
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*
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* @param array $keys email|account_id => public key pairs to store
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* @param boolean $allow_user_updates =null for admins, set config to allow regular users to store their pgp key
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* @return int number of pgp keys stored
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*/
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public function ajax_set_pgp_keys($keys, $allow_user_updates=null)
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{
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if (isset($allow_user_updates) && isset($GLOBALS['egw_info']['user']['apps']['admin']))
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{
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$update = false;
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if ($allow_user_updates && !in_array('pubkey', $this->own_account_acl))
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{
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$this->own_account_acl[] = 'pubkey';
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$update = true;
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}
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elseif (!$allow_user_updates && ($key = array_search('pubkey', $this->own_account_acl)) !== false)
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{
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unset($this->own_account_acl[$key]);
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$update = true;
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}
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if ($update)
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{
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Config::save_value('own_account_acl', $this->own_account_acl, 'phpgwapi');
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}
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}
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$criteria = array();
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foreach($keys as $recipient => $key)
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{
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if (!preg_match(self::$pgp_key_regexp, $key)) continue;
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if (is_numeric($recipient))
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{
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$criteria['egw_addressbook.account_id'][] = (int)$recipient;
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}
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else
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{
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$criteria['contact_email'][] = $recipient;
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}
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}
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if (!$criteria) return 0;
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$updated = 0;
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foreach($this->search($criteria, false, '', '', '', false, 'OR') as $contact)
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{
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if ($contact['account_id'] && isset($keys[$contact['account_id']]))
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{
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$key = $keys[$contact['account_id']];
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}
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elseif (isset($keys[$contact['email']]))
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{
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$key = $keys[$contact['email']];
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}
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if (empty($contact['pubkey']) || !preg_match(self::$pgp_key_regexp, $contact['pubkey']))
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{
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$contact['pubkey'] .= $key;
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}
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else
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{
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$contact['pubkey'] = preg_replace(self::$pgp_key_regexp, $key, $contact['pubkey']);
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}
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if ($this->check_perms(EGW_ACL_EDIT, $contact) && $this->save($contact))
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{
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++$updated;
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}
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}
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if ($criteria == array('egw.addressbook.account_id' => array((int)$GLOBALS['egw_info']['user']['account_id'])))
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{
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$message = !$updated ? lang('Permissiong denied! Ask your administrator to allow regular uses to update their public keys.') :
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lang('Your new public key has been stored in accounts addressbook.');
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}
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else
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{
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$message = lang('%1 public keys added.', $updated);
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}
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// add all keys to public keyserver too
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$message .= "\n".lang('%1 key(s) added to public keyserver "%2".',
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self::set_pgp_keyserver($keys), PARSE_URL(self::KEYSERVER_ADD, PHP_URL_HOST));
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egw_json_response::get()->data($message);
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}
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/**
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* Keyserver add URL
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*/
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const KEYSERVER_ADD = 'https://hkps.pool.sks-keyservers.net/pks/add';
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/**
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* Upload PGP keys to public keyserver
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*
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* @param array $keys email|account_id => public key pairs to store
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* @return int number of pgp keys stored
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*/
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public static function set_pgp_keyserver($keys)
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{
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$added = 0;
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foreach($keys as $email => $cert)
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{
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if (is_numeric($email))
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{
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$email = $GLOBALS['egw']->accounts->id2name($email, 'account_email');
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}
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if (($response = file_get_contents(self::KEYSERVER_ADD, false, stream_context_create(array(
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'ssl' => array(
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'verify_peer' => true,
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'cafile' => EGW_SERVER_ROOT.self::KEYSERVER_CA,
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),
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'http' => array(
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'header' => "Content-type: text/plain",
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'method' => 'POST',
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'content' => http_build_query(array(
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'keytext' => $cert,
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)),
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),
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)))))
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{
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$added++;
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}
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}
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return $added;
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}
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}
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