forked from extern/egroupware
622 lines
19 KiB
PHP
622 lines
19 KiB
PHP
<?php
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/**
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* EGroupware - Mail Folder ACL- interface class
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*
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* @link http://www.egroupware.org
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* @package mail
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* @author Hadi Nategh [hn@egroupware.org]
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* @copyright (c) 2013-16 by EGroupware GmbH <info-AT-egroupware.org>
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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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/*
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* Reference: RFC 4314 DOCUMENTATION - RIGHTS (https://tools.ietf.org/html/rfc4314)
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*
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* Standard Rights:
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*
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* The currently defined standard rights are (note that the list below
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* doesn't list all commands that use a particular right):
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*
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* l - lookup (mailbox is visible to LIST/LSUB commands, SUBSCRIBE mailbox)
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* r - read (SELECT the mailbox, perform STATUS)
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* s - keep seen/unseen information across sessions (set or clear \SEEN flag
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* via STORE, also set \SEEN during APPEND/COPY/ FETCH BODY[...])
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* w - write (set or clear flags other than \SEEN and \DELETED via
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* STORE, also set them during APPEND/COPY)
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* i - insert (perform APPEND, COPY into mailbox)
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* p - post (send mail to submission address for mailbox,
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* not enforced by IMAP4 itself)
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* k - create mailboxes (CREATE new sub-mailboxes in any
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* implementation-defined hierarchy, parent mailbox for the new
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* mailbox name in RENAME)
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* x - delete mailbox (DELETE mailbox, old mailbox name in RENAME)
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* t - delete messages (set or clear \DELETED flag via STORE, set
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* \DELETED flag during APPEND/COPY)
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* e - perform EXPUNGE and expunge as a part of CLOSE
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* a - administer (perform SETACL/DELETEACL/GETACL/LISTRIGHTS)
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*
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*
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*
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* Obsolete Rights:
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*
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* Due to ambiguity in RFC 2086, some existing RFC 2086 server
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* implementations use the "c" right to control the DELETE command.
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* Others chose to use the "d" right to control the DELETE command. For
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* the former group, let's define the "create" right as union of the "k"
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* and "x" rights, and the "delete" right as union of the "e" and "t"
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* rights. For the latter group, let's define the "create" rights as a
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* synonym to the "k" right, and the "delete" right as union of the "e",
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* "t", and "x" rights.
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* For compatibility with RFC 2086, this section defines two virtual
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* rights "d" and "c".
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* If a client includes the "d" right in a rights list, then it MUST be
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* treated as if the client had included every member of the "delete"
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* right. (It is not an error for a client to specify both the "d"
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* right and one or more members of the "delete" right, but the effect
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* is no different than if just the "d" right or all members of the
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* "delete" right had been specified.)
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*
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*/
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use EGroupware\Api;
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use EGroupware\Api\Framework;
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use EGroupware\Api\Etemplate;
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use EGroupware\Api\Mail;
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class mail_acl
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{
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/**
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* Methods callable via menuaction
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*
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* @var array
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*/
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var $public_functions = array(
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'edit' => True,
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);
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/**
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* static used define abbreviations for common access rights
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*
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* @array
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*
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*/
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var $aclRightsAbbrvs = array(
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'lrs' => array('label'=>'readable','title'=>'Allows a user to read the contents of the mailbox.'),
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'lprs' => array('label'=>'post','title'=>'Allows a user to read the mailbox and post to it through the delivery system by sending mail to the submission address of the mailbox.'),
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'ilprs' => array('label'=>'append','title'=>'Allows a user to read the mailbox and append messages to it, either via IMAP or through the delivery system.'),
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'ilprsw' => array('label'=>'write','title'=>'Allows a user to read and write the maibox, post to it, append messages to it.'),
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'eilprswtk' => array('label'=>'write & delete','title'=>'Allows a user to read, write and create folders and mails, post to it, append messages to it and delete messages.'),
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'aeiklprstwx'=> array('label'=>'all','title'=>'The user has all possible rights on the mailbox. This is usually granted to users only on the mailboxes they own.'),
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'custom' => array('label'=>'custom','title'=>'User defined combination of rights for the ACL'),
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);
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/**
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* imap object instantiated in constructor for account to edit
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*
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* @var Mail\Imap
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*/
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var $imap;
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/**
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*
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* @var mail_account
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*/
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var $current_account;
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/**
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* Edit folder ACLs of account(s)
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*
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* @param array $content = null
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* @param string $msg = ''
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*
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*/
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function edit(array $content=null ,$msg='')
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{
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$tmpl = new Etemplate('mail.acl');
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if (!is_array($content))
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{
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$acc_id = $_GET['acc_id'] ?? $GLOBALS['egw_info']['user']['preferences']['mail']['ActiveProfileID'];
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if (isset($_GET['account_id']) && !isset($GLOBALS['egw_info']['user']['apps']['admin']))
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{
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Framework::window_close(lang('Permission denied'));
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}
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$account_id = $_GET['account_id'];
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}
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else
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{
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$acc_id = $content['acc_id'];
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$account_id = $content['account_id'];
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}
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$account = Mail\Account::read($acc_id, $account_id);
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$this->imap = $account->imapServer(isset($account_id) ? (int)$account_id : false);
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$mailbox = $_GET['mailbox']? base64_decode($_GET['mailbox']): self::_extract_mailbox($content['mailbox'], $acc_id);
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if (empty($mailbox))
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{
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$mailbox = $this->imap->isAdminConnection ? $this->imap->getUserMailboxString($account_id) : 'INBOX';
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}
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if (!$this->imap->isAdminConnection)
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{
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$tmpl->setElementAttribute('mailbox', 'searchOptions', array('mailaccount' => $acc_id));
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}
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else
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{
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$tmpl->setElementAttribute('mailbox', 'searchUrl', '');
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//Todo: Implement autocomplete_url function with admin stuffs consideration
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}
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// Unset the content if folder is changed, in order to read acl rights for new selected folder
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if (!is_array($content['button']) && self::_extract_mailbox($content['mailbox'], $acc_id) && !is_array($content['grid']['delete'])) unset($content);
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if (!is_array($content))
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{
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if (!empty($mailbox))
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{
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$content['mailbox'] = $mailbox;
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if (($acls = $this->retrieve_acl($mailbox, $msg)) === false)
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{
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Api\Framework::window_close($msg);
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}
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$n = 1;
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foreach ($acls as $key => $acl)
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{
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$rights = [];
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foreach ($acl->getIterator() as $right)
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{
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$content['grid'][$n]['acl_'. $right] = true;
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$rights[] = $right;
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}
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$virtual = $acl->getString(Horde_Imap_Client_Data_Acl::RFC_2086);
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foreach(['c', 'd'] as $right)
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{
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if (strpos($virtual, $right) !== false)
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{
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$content['grid'][$n]['acl_'. $right] = true;
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}
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}
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sort($rights);
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$acl_abbrvs = implode('',$rights);
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if (array_key_exists($acl_abbrvs, $this->aclRightsAbbrvs))
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{
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$content['grid'][$n]['acl'] = $acl_abbrvs;
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}
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else
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{
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$content['grid'][$n]['acl'] = 'custom';
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}
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if (($user = $this->imap->getMailBoxAccountId($key)))
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{
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$content['grid'][$n++]['acc_id'] = $user;
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}
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else
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{
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$content['grid'][$n++]['acc_id'] = $key;
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}
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}
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//error_log(__METHOD__."() acl=".array2string($acl).' --> grid='.array2string($content['grid']));
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}
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//Set the acl entry in the last row with lrs as default ACL
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array_push($content['grid'], array(
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'acc_id'=>'',
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'acl_l' => true,
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'acl_r' => true,
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'acl_s' => true));
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}
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else
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{
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$button = !empty ($content['grid']['delete']) ? 'delete' : @key((array)$content['button']);
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$data = $content;
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$data['mailbox'] = self::_extract_mailbox($content['mailbox'], $acc_id);
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switch ($button)
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{
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case 'save':
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case 'apply':
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if ($content)
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{
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$validation_err = $this->update_acl($data,$msg);
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if ($validation_err)
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{
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foreach ($validation_err as &$row)
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{
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$tmpl->set_validation_error('grid['.$row.']'.'[acc_id]', "You must fill this field!");
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}
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}
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//Add new row at the end
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if ($content['grid'][count($content['grid'])]['acc_id'])
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array_push($content['grid'], array('acc_id'=>''));
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}
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else
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{
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$msg .= "\n".lang("Error: Could not save ACL").' '.lang("reason!");
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}
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//Send message
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Framework::message($msg);
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if ($button == "apply") break;
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Framework::window_close();
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exit;
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case 'delete':
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$aclRvmCnt = $this->remove_acl($data, $msg);
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if (is_array($aclRvmCnt))
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{
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$content['grid'] = $aclRvmCnt;
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}
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else
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{
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error_log(__METHOD__.__LINE__. "()" . "The remove_acl suppose to return an array back, something is wrong there");
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}
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Framework::message($msg);
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}
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}
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$readonlys = $sel_options = array();
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$sel_options['mailbox'] = [['value' => $mailbox, 'label' => $mailbox]];
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$sel_options['acl'] = $this->aclRightsAbbrvs;
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//Make the account owner's fields all readonly as owner has all rights and should not be able to change them
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foreach($content['grid'] as $key => $fields)
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{
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if (self::_extract_acc_id($fields['acc_id']) == $this->imap->acc_imap_username ||
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$this->imap->getMailBoxUserName(self::_extract_acc_id($fields['acc_id'])) == $this->imap->acc_imap_username)
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{
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foreach (array_keys($fields) as $index)
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{
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$readonlys['grid'][$key][$index] = true;
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}
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$readonlys['grid']['delete['.$key.']'] = true;
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$readonlys['grid'][$key]['acl_recursive'] = true;
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$preserv ['grid'][$key] = $fields;
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$preserv['grid'][$key]['acl_recursive'] = false;
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}
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if (count($content['grid']) != $key)
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{
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$preserv ['grid'][$key]['acc_id'] = self::_extract_acc_id($fields['acc_id']);
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$preserv['grid'][$key]['acl_recursive'] = false;
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$readonlys['grid'][$key]['acc_id'] = true;
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}
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}
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//Make entry row's delete button readonly
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$readonlys['grid']['delete['.count($content['grid']).']'] = true;
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$preserv['mailbox'] = $content['mailbox'];
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$preserv['acc_id'] = $acc_id;
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$preserv['account_id'] = $account_id;
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$content['grid']['account_type'] = $this->imap->supportsGroupAcl() ? 'both' : 'accounts';
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// set a custom autocomplete method for mailbox taglist
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if ($account_id)
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{
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$tmpl->setElementAttribute('mailbox', 'searchUrl', __CLASS__ . '::ajax_folders');
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$tmpl->setElementAttribute('mailbox', 'searchOptions', array(
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'acc_id' => $acc_id,
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'account_id' => $account_id,
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));
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}
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$tmpl->exec('mail.mail_acl.edit', $content, $sel_options, $readonlys, $preserv,2);
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}
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/**
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* Autocomplete for folder taglist
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*
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* @throws Api\Exception\NoPermission\Admin
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*/
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public static function ajax_folders()
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{
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if (!empty($_GET['account_id']) && !$GLOBALS['egw_info']['user']['apps']['admin'])
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{
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throw new Api\Exception\NoPermission\Admin;
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}
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$account = Mail\Account::read($_GET['acc_id'], $_GET['account_id']);
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$imap = $account->imapServer(!empty($_GET['account_id']) ? (int)$_GET['account_id'] : false);
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$mailbox = $imap->isAdminConnection ? $imap->getUserMailboxString($imap->isAdminConnection) : 'INBOX';
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$folders = array();
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foreach(self::getSubfolders($mailbox, $imap) as $folder)
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{
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if (stripos($folder, $_GET['query']) !== false)
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{
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$folders[] = array(
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'id' => $folder,
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'label' => $folder,
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);
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}
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}
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// switch regular JSON response handling off
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Api\Json\Request::isJSONRequest(false);
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header('Content-Type: application/json; charset=utf-8');
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echo json_encode($folders);
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exit;
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}
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/**
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* Update ACL rights of a folder or including subfolders for an account(s)
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*
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* @param array $content content including the acl rights
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* @param string $msg Message
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*
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* @return Array | void return array of validation messages or nothing
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*/
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function update_acl ($content, &$msg)
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{
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$validator = array();
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foreach ($content['grid'] as $keys => $value)
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{
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$recursive = $value['acl_recursive'];
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unset($value['acc_id']);
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unset($value['acl_recursive']);
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unset($value['acl']);
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$options = array();
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foreach ($value as $key => $set)
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{
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if ($set)
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{
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$right = explode("acl_", $key);
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if ($right[1] === 'c') $right[1] = 'kx'; // c = kx , rfc 4314
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if ($right[1] === 'd') $right[1] = 'et'; // d = et , rfc 4314
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$options['rights'] .= $right[1];
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}
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}
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$username = self::_extract_acc_id($content['grid'][$keys]['acc_id']);
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//error_log(__METHOD__."(".__LINE__.") setACL($content[mailbox], $username, ".array2string($options).", $recursive)");
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if (is_numeric($username) && ($u = $this->imap->getMailBoxUserName($username)))
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{
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$username = $u;
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}
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if (!empty($username))
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{
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//error_log(__METHOD__."() setACL($content[mailbox], $username, ".array2string($options).", $recursive)");
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if (($ret=$this->setACL($content['mailbox'], $username, $options, $recursive, $msg)))
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{
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$msg = lang("The Folder %1 's ACLs saved", $content['mailbox']);
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}
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else
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{
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$msg = lang('Error while setting ACL for folder %1!', $content['mailbox'])."\n".$msg;
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}
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}
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else
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{
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if($keys !== count($content['grid']))
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{
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array_push($validator, $keys);
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$msg = lang("Could not save the ACL because some names are empty");
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}
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}
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}
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if (is_array($validator))
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{
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return $validator;
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}
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}
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/**
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* Retrieve Folder ACL rights
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* @param string $mailbox
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* @param string &$msg
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*
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* @return Horde_Imap_Client_Data_Acl[]|false returns array of acl or false on failure
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* @todo rights 'c' and 'd' should be fixed
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*/
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function retrieve_acl ($mailbox, &$msg)
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{
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if (($acl = $this->getACL($mailbox)) !== false)
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{
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$msg = lang('ACL rights retrieved successfully');
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return $acl;
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}
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else
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{
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$msg = lang('Get ACL rights failed from IMAP server!');
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return false;
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}
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}
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/**
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* remove_acl
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* This method take content of acl rights, and will delete the one from ACL IMAP,
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* for selected folder and/or its subfolders
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*
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* @param Array $content content array of popup window
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* @param string $msg message
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*
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* @return Array | Boolean An array as new content for grid or false in case of error
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*/
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function remove_acl($content, &$msg)
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{
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$row_num = array_keys($content['grid']['delete'],"pressed");
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if ($row_num) $row_num = $row_num[0];
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$recursive = $content['grid'][$row_num]['acl_recursive'];
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$identifier = self::_extract_acc_id($content['grid'][$row_num]['acc_id']);
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$content['mailbox'] = is_array($content['mailbox'])? $content['mailbox'][0] : $content['mailbox'];
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if (is_numeric($identifier) && ($u = $this->imap->getMailBoxUserName($identifier)))
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{
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$identifier = $u;
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}
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//error_log(__METHOD__.__LINE__."(".$content['mailbox'].", ".$identifier.", ".$recursive.")");
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if(($res = $this->deleteACL($content['mailbox'], $identifier,$recursive,$msg)))
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{
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unset($content['grid'][$row_num]);
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unset($content['grid']['delete']);
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if ($recursive)
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{
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$msg = lang("The %1 's acl, including its subfolders, removed from the %2",$content['mailbox'],$identifier);
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}
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else
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{
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$msg = lang("The %1 's acl removed from the %2",$content['mailbox'],$identifier);
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}
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return array_combine(range(1, count($content['grid'])), array_values($content['grid']));
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}
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else
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{
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$msg = lang("An error happend while trying to remove ACL rights from the account %1!",$identifier)."\n".$msg;
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return false;
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}
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}
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/**
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* Delete ACL rights of a folder or including subfolders from an account
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*
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* @param String $mailbox folder name that needs to be edited
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* @param String $identifier The identifier to delete.
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* @param Boolean $recursive boolean flag FALSE|TRUE. If it is FALSE, only the folder take in to account, but in case of TRUE
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* the mailbox including all its subfolders will be considered.
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* @param String& $msg=null on return error-message
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* @return Boolean FALSE in case of any exceptions and TRUE in case of success
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*/
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function deleteACL ($mailbox, $identifier, $recursive, &$msg=null)
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{
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if ($recursive)
|
|
{
|
|
$folders = self::getSubfolders($mailbox, $this->imap);
|
|
}
|
|
else
|
|
{
|
|
$folders = (array)$mailbox;
|
|
}
|
|
$errors = [];
|
|
$success = 0;
|
|
foreach($folders as $sbFolders)
|
|
{
|
|
try
|
|
{
|
|
$this->imap->deleteACL($sbFolders, $identifier);
|
|
$success++;
|
|
}
|
|
catch (Exception $e)
|
|
{
|
|
$errors[] = $sbFolders.': '.$e->getMessage();
|
|
error_log(__METHOD__. "Could not delete ACL rights of folder " . $sbFolders . " for account ". $identifier ."." .$e->getMessage());
|
|
}
|
|
}
|
|
if ($errors)
|
|
{
|
|
$msg = lang("Succeeded on %1 folders, failed on %2", $success, count($errors)).":\n- ".
|
|
implode("\n- ", $errors);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get subfolders of a mailbox
|
|
*
|
|
* @param string $mailbox structural folder name
|
|
* @param Mail\Imap $imap
|
|
* @return Array an array including all subfolders of given mailbox| returns an empty array in case of no subfolders
|
|
*/
|
|
protected static function getSubfolders($mailbox, Mail\Imap $imap)
|
|
{
|
|
$delimiter = $imap->getDelimiter();
|
|
$nameSpace = $imap->getNameSpace();
|
|
$prefix = $imap->getFolderPrefixFromNamespace($nameSpace, $mailbox);
|
|
if (($subFolders = $imap->getMailBoxesRecursive($mailbox, $delimiter, $prefix)))
|
|
{
|
|
return $subFolders;
|
|
}
|
|
else
|
|
{
|
|
return array();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set ACL rights of a folder or including subfolders to an account
|
|
* @param String $mailbox folder name that needs to be edited
|
|
* @param String $identifier The identifier to set.
|
|
* @param Array $options Additional options:
|
|
* - rights: (string) The rights to alter or set.
|
|
* - action: (string, optional) If 'add' or 'remove', adds or removes the
|
|
* specified rights. Sets the rights otherwise.
|
|
* @param Boolean $recursive boolean flag FALSE|TRUE. If it is FALSE, only the folder take in to account, but in case of TRUE
|
|
* the mailbox including all its subfolders will be considered.
|
|
* @param String $msg message
|
|
* @return Boolean FALSE in case of any exceptions and TRUE in case of success,
|
|
*
|
|
*/
|
|
function setACL($mailbox, $identifier,$options, $recursive, &$msg)
|
|
{
|
|
if ($recursive)
|
|
{
|
|
$folders = self::getSubfolders($mailbox, $this->imap);
|
|
}
|
|
else
|
|
{
|
|
$folders = (array)$mailbox;
|
|
}
|
|
$errors = [];
|
|
$success = 0;
|
|
foreach($folders as $sbFolders)
|
|
{
|
|
try
|
|
{
|
|
$this->imap->setACL($sbFolders,$identifier,$options);
|
|
$success++;
|
|
}
|
|
catch (Exception $e)
|
|
{
|
|
$errors[] = $sbFolders.': '.$e->getMessage();
|
|
error_log(__METHOD__. "Could not set ACL rights on folder " . $sbFolders . " for account ". $identifier . "." .$e->getMessage());
|
|
}
|
|
}
|
|
if ($errors)
|
|
{
|
|
$msg = lang("Succeeded on %1 folders, failed on %2", $success, count($errors)).":\n- ".
|
|
implode("\n- ", $errors);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get ACL rights of a folder from an account
|
|
*
|
|
* @param String $mailbox folder name that needs to be read
|
|
* @return Horde_Imap_Client_Data_Acl[]|false FALSE in case of any exceptions and returns Array in case of success,
|
|
*/
|
|
function getACL ($mailbox)
|
|
{
|
|
try
|
|
{
|
|
return $this->imap->getACL($mailbox);
|
|
} catch (Exception $e) {
|
|
error_log(__METHOD__. "Could not get ACL rights from folder " . $mailbox . "." .$e->getMessage());
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Method to get acc_id id value whether if is a flat value or an array
|
|
*
|
|
* @param type $acc_id acc_id value comming from client-side
|
|
*
|
|
* @return string returns acc_id in flat format
|
|
*/
|
|
private static function _extract_acc_id ($acc_id)
|
|
{
|
|
return is_array($acc_id)?$acc_id[0]:$acc_id;
|
|
}
|
|
|
|
/**
|
|
* @param string | array $mailbox
|
|
* @param string $acc_id
|
|
*
|
|
* @return string | NULL return sanitate mailbox of acc id and delimiter and return it as string
|
|
*/
|
|
private static function _extract_mailbox ($mailbox, $acc_id)
|
|
{
|
|
$mailbox = is_array($mailbox) ? $mailbox[0] : $mailbox;
|
|
return preg_replace("/^".$acc_id."::/",'', $mailbox);
|
|
}
|
|
} |