410 lines
16 KiB
PHP
410 lines
16 KiB
PHP
<?php
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/*
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$Id$
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This code is part of LDAP Account Manager (http://www.ldap-account-manager.org/)
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Copyright (C) 2010 Pavel Pozdniak
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2010 Roland Gruber
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/**
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* Manages mailboxes on an IMAP server.
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*
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* @package modules
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* @author Pavel Pozdniak
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* @author Roland Gruber
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*/
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/**
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* Manages mailboxes on an IMAP server.
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*
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* @package modules
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* @author Pavel Pozdniak
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*/
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class imapAccess extends baseModule {
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/**
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* Returns meta data that is interpreted by parent class
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*
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* @return array array with meta data
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*
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* @see baseModule::get_metaData()
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*/
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function get_metaData() {
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$return = array();
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// manages user accounts
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$return["account_types"] = array("user");
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// alias name
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$return["alias"] = _("Mailbox");
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// module dependencies
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$return['dependencies'] = array('depends' => array('inetOrgPerson'), 'conflicts' => array());
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// managed object classes
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$return['objectClasses'] = array();
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// managed attributes
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$return['attributes'] = array();
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// PHP extensions
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$return['extensions'] = array('imap');
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// icon
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$return['icon'] = 'mailBig.png';
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// help
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$return['help'] = array(
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'ImapServerAddress' => array(
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"Headline" => _("Server address"),
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"Text" => _("Address of IMAP server (e.g. mail.example.org).")),
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'ImapServerEncryptionProtocol' => array(
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"Headline" => _("Encryption protocol"),
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"Text" => _("Encryption protocol for connecting to IMAP server. LAM requires an encrypted connection.")),
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'ImapValidateServerCert' => array(
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"Headline" => _("Validate server certificate"),
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"Text" => _("This option allows you to disable the certificate check of your IMAP server certificate. Disabling the certificate check is not recommended.")),
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'ImapAdmin' => array(
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"Headline" => _("IMAP admin user"),
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"Text" => _("The login name of your IMAP user who has rights to create/delete mailboxes.")),
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'ImapAdminPasswordSelect' => array(
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"Headline" => _("IMAP password input"),
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"Text" => _("Choose the way how to provide the IMAP admin password. You can use the same password as for the LAM login or LAM will ask you for a password when it is required.")),
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'ImapAdminPassword_Sess' => array(
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"Headline" => _("Password of IMAP admin user"),
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"Text" => _("The password of your IMAP admin user. The login name for the IMAP admin user is stored in the LAM server profile.")),
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'ImapUserPrefix' => array(
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"Headline" => _("Prefix for mailboxes"),
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"Text" => _("Some IMAP servers store mailboxes with a prefix (e.g. \"user\" for Cyrus which results in \"user.username\").")),
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'ImapMailDomain' => array(
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"Headline" => _("Mail domain(s)"),
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"Text" => _("Please enter a comma separated list of domain names (e.g. \"company.com,example.com\"). LAM will only manage mailboxes from these domains.")),
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'MailAddress' => array(
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"Headline" => _("Mailbox"),
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"Text" => _("This mailbox will be created/deleted."))
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);
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// configuration settings
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$configContainer = new htmlTable();
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$configServer = new htmlTableExtendedInputField(_('Server address'), 'ImapAccess_ImapServerAddress', '', 'ImapServerAddress');
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$configServer->setRequired(true);
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$configContainer->addElement($configServer, true);
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$configContainer->addElement(new htmlTableExtendedSelect('ImapAccess_ImapServerEncriptionProtocol', array('TLS', 'SSL'), array('TLS'), _("Encryption protocol"), 'ImapServerEncryptionProtocol'), true);
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$configCertValidate = new htmlTableExtendedSelect('ImapAccess_ImapValidateServerCert', array(_('Yes') => 'validate-cert', _('No') => 'novalidate-cert'), array('validate-cert'), _("Validate server certificate"), 'ImapValidateServerCert');
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$configCertValidate->setHasDescriptiveElements(true);
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$configContainer->addElement($configCertValidate, true);
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$configUser = new htmlTableExtendedInputField(_('IMAP admin user'), 'ImapAccess_ImapAdmin', '', 'ImapAdmin');
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$configUser->setRequired(true);
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$configContainer->addElement($configUser, true);
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$configPasswordType = new htmlTableExtendedSelect('ImapAccess_ImapAdminPasswordSelect', array(_('LAM user password') => 'lam_user_pass', _('Ask') => 'ask_pass'), array('ask_pass'), _("IMAP password input"), 'ImapAdminPasswordSelect');
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$configPasswordType->setHasDescriptiveElements(true);
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$configContainer->addElement($configPasswordType, true);
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$configContainer->addElement(new htmlTableExtendedInputField(_('Prefix for mailboxes'), 'ImapAccess_ImapUserPrefix', '', 'ImapUserPrefix'), true);
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$mailDomainsInput = new htmlTableExtendedInputField(_('Mail domain(s)'), 'ImapAccess_ImapDomain', '', 'ImapMailDomain');
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$mailDomainsInput->setRequired(true);
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$configContainer->addElement($mailDomainsInput, true);
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$return['config_options']['all'] = $configContainer;
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// configuration checks
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$return['config_checks']['all']['ImapAccess_ImapServerAddress'] = array (
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'type' => 'ext_preg',
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'regex' => 'DNSname',
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'required' => true,
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'required_message' => $this->messages['config'][0],
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'error_message' => $this->messages['config'][0]);
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$return['config_checks']['all']['ImapAccess_ImapDomain'] = array (
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'type' => 'regex_i',
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'regex' => '[a-z0-9\\._-]+(,[a-z0-9\\._-]+)*',
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'required' => true,
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'required_message' => $this->messages['config'][1],
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'error_message' => $this->messages['config'][1]);
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return $return;
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}
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/**
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* This function fills the error message array with messages
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*/
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function load_Messages() {
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$this->messages['config'][0] = array('ERROR', _('Please enter a valid server name where the mailboxes reside.'));
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$this->messages['config'][1] = array('ERROR', _('Please enter a correct list of valid mail domains.'));
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$this->messages['managemailbox'][0] = array('ERROR', _('Unable to change ACL on IMAP server for mailbox deletion.'));
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$this->messages['managemailbox'][1] = array('ERROR', _('Unable to delete mailbox from IMAP server.'));
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$this->messages['managemailbox'][2] = array('ERROR', _('Unable to create mailbox on IMAP server.'));
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$this->messages['managemailbox'][3] = array('ERROR', _('Unable to locate mailbox on IMAP.'));
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$this->messages['managemailbox'][4] = array('ERROR', _('Your IMAP domain(s) and email address domain do not match.'));
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$this->messages['managemailbox'][5] = array('ERROR', _('Invalid password for IMAP admin or other problem occured.'));
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}
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/**
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* Returns the HTML meta data for the main account page.
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*
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* @return array HTML meta data
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*/
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function display_html_attributes() {
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$return = new htmlTable();
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$prefix = $this->getMailboxPrefix();
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$email = '';
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$attrs = $this->getAccountContainer()->getAccountModule('inetOrgPerson')->getAttributes();
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$email = $attrs['mail'][0];
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if ($email == '') {
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$return->addElement(new htmlStatusMessage('INFO', _("Please enter an email address on this page: %s"), '', array($this->getAccountContainer()->getAccountModule('inetOrgPerson')->get_alias())));
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return $return;
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}
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$imap_admin_password = $this->getAdminPassword(); //Check for password for fall back mechanism
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if ((strcasecmp($this->moduleSettings['ImapAccess_ImapAdminPasswordSelect'][0], "ask_pass") == 0 && !isset($_SESSION['imapAdmPass'])) || (!$imap_admin_password)) {
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return $this->display_html_password();
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}
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$return->addElement(new htmlOutputText(_('Email address')));
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$return->addElement(new htmlOutputText($email), true);
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$imap_server_address = $this->getServerAddress();
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$imap_admin_user = $this->moduleSettings['ImapAccess_ImapAdmin'][0];
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$imap_admin_password = $this->getAdminPassword();
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$mbox = imap_open("{" . $imap_server_address . "}", $imap_admin_user, $imap_admin_password, OP_HALFOPEN) or die("can't connect: " . imap_last_error());
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$attrs = $this->getAccountContainer()->getAccountModule('inetOrgPerson')->getAttributes();
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$email_domain = substr(strstr($email, '@'), 1);
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$email_parts = explode('@', $email, 2);
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$email_username = array_shift($email_parts);
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$return->addElement(new htmlOutputText(_('Mailbox')));
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$return->addElement(new htmlOutputText($prefix . "." . $email_username));
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$return->addElement(new htmlHelpLink('MailAddress'), true);
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$return->addElement(new htmlSpacer(null, '10px'), true);
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$is_mailbox_exist = false; //default is false
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$list = imap_list($mbox, "{" . $imap_server_address . "}", $prefix . "." . $email_username);
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if (is_array($list) && sizeof($list) == 1) {
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$mailboxMessage = new htmlOutputText(_("Mailbox already exists on IMAP server."));
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$mailboxMessage->colspan = 3;
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$return->addElement($mailboxMessage, true);
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$return->addElement(new htmlSpacer(null, '10px'), true);
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$return->addElement(new htmlButton('deleteMailbox', _('Delete mailbox')));
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}
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else {
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$mailboxMessage = new htmlOutputText(_("Mailbox does not exist on IMAP server."));
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$mailboxMessage->colspan = 3;
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$return->addElement($mailboxMessage, true);
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$return->addElement(new htmlSpacer(null, '10px'), true);
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$createButton = new htmlButton('createMailbox', _('Create mailbox'));
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$message = '';
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if ($this->isWrongDomain($email_domain)) {
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$createButton->setIsEnabled(false);
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$message = '<< ' . $this->messages['managemailbox'][4][1];
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}
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$return->addElement($createButton);
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$return->addElement(new htmlOutputText($message));
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}
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imap_close($mbox);
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return $return;
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}
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/**
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* Returns the HTML meta data for the password page.
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*
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* @return array HTML meta data
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*/
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function display_html_password() {
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$return = new htmlTable();
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$passwordInput = new htmlTableExtendedInputField(_("Password of IMAP admin user"), 'ImapAdminPassword', '', 'ImapAdminPassword_Sess');
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$passwordInput->setIsPassword(true);
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$passwordInput->setRequired(true);
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$return->addElement($passwordInput, true);
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$return->addElement(new htmlSpacer(null, '10px'), true);
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$return->addElement(new htmlButton('enterPasswordButton', _('Ok')));
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return $return;
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}
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/**
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* Processes user input of the primary module page.
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* It checks if all input values are correct and updates the associated LDAP attributes.
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*
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* @return array list of info/error messages
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*/
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function process_attributes() {
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$errors = array();
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$prefix = $this->getMailboxPrefix();
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$imap_server_address = $this->getServerAddress();
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$imap_admin_user = $this->moduleSettings['ImapAccess_ImapAdmin'][0];
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if (isset($_POST['ImapAdminPassword'])) {
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$errors = $this->doLogin();
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}
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$imap_admin_password = $this->getAdminPassword();
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if ($imap_admin_password) {
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$mbox = @imap_open("{" . $imap_server_address . "}", $imap_admin_user, $imap_admin_password, OP_HALFOPEN);
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}
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if ($mbox) {
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$attrs = $this->getAccountContainer()->getAccountModule('inetOrgPerson')->getAttributes();
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$email = $attrs['mail'][0];
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$email_domain = substr(strstr($email, '@'), 1);
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$email_parts = explode('@', $email, 2);
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$email_username = array_shift($email_parts);
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if (isset($_POST['deleteMailbox'])) {
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if ($this->isWrongDomain($email_domain)) {
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$errors[] = $this->messages['managemailbox'][4];
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}
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else {
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if (!imap_setacl($mbox, $prefix . "." . $email_username, $this->moduleSettings['ImapAccess_ImapAdmin'][0], "c")) {
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$errors[] = $this->messages['managemailbox'][0];
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}
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$delete_mailbox_arg = "{" . $imap_server_address . "}" . $prefix . "." . $email_username;
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if (!@imap_deletemailbox($mbox, $delete_mailbox_arg)) {
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$errors[] = $this->messages['managemailbox'][1];
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}
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}
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}
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if (isset($_POST['createMailbox'])) {
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if ($this->isWrongDomain($email_domain)) {
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$errors[] = $this->messages['managemailbox'][4];
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}
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else {
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$create_mailbox_arg = "{" . $imap_server_address . "}" . $prefix . "." . $email_username;
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if (imap_createmailbox($mbox, imap_utf7_encode($create_mailbox_arg))) {
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$list = imap_list($mbox, "{" . $imap_server_address . "}", $prefix . "." . $email_username);
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if (is_array($list) && sizeof($list) == 1) {
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}
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else {
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$errors[] = $this->messages['managemailbox'][3];
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}
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}
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else {
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$errors[] = $this->messages['managemailbox'][2];
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}
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}
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}
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imap_close($mbox);
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}
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// Return error-messages
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return $errors;
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}
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/**
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* Returns the admin password.
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*
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* @return String password
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*/
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function getAdminPassword() {
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$imap_admin_user = $this->moduleSettings['ImapAccess_ImapAdmin'][0];
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//perform admin password
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$imap_admin_password = null; //default value is null, it can be changed during the work
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if (isset($this->moduleSettings['ImapAccess_ImapAdminPasswordSelect'][0]) && ($this->moduleSettings['ImapAccess_ImapAdminPasswordSelect'][0] == "lam_user_pass")) {
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$credentials = $_SESSION['ldap']->decrypt_login();
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$imap_admin_password = $credentials[1];
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}
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elseif (strcasecmp($this->moduleSettings['ImapAccess_ImapAdminPasswordSelect'][0], "ask_pass") == 0 && isset($_SESSION['imapAdmPass'])) {
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$imap_admin_password = $_SESSION['ldap']->decrypt($_SESSION['imapAdmPass']);
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}
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return $imap_admin_password;
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}
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/**
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* Checks the password given by user and save it as session parameter.
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*
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* @return array list of error messages
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*/
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function doLogin() {
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$errors = array();
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$imap_server_address = $this->getServerAddress();
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$imap_admin_user = $this->moduleSettings['ImapAccess_ImapAdmin'][0];
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if (isset($_POST['ImapAdminPassword']) && $_POST['ImapAdminPassword'] != "") {
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$imap_admin_password = $_POST['ImapAdminPassword'];
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$mbox = @imap_open("{" . $imap_server_address . "}", $imap_admin_user, $imap_admin_password, OP_HALFOPEN);
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if ($mbox) {
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$_SESSION['imapAdmPass'] = $_SESSION['ldap']->encrypt($_POST['ImapAdminPassword']);
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@imap_close($mbox);
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}
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else {
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$error = $this->messages['managemailbox'][5];
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$error[] = imap_last_error();
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$errors[] = $error;
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}
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}
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return $errors;
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}
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/**
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* This function returns the IMAP server address including encryption options.
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*
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* @return String server address
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*/
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function getServerAddress() {
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$imap_encryption_protocol = $this->moduleSettings['ImapAccess_ImapServerEncriptionProtocol'][0];
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if (strrpos($this->moduleSettings['ImapAccess_ImapServerAddress'][0], ":")) {
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$imap_port_number = substr(strstr($this->moduleSettings['ImapAccess_ImapServerAddress'][0], ':'), 1);
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$imap_server_name = array_shift(explode(':', $this->moduleSettings['ImapAccess_ImapServerAddress'][0], 2));
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}
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else {
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$imap_server_name = $this->moduleSettings['ImapAccess_ImapServerAddress'][0];
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if (strcmp($imap_encryption_protocol, "TLS") == 0) {
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$imap_port_number = 143;
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}
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else {
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$imap_port_number = 993;
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}
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}
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if (isset($this->moduleSettings['ImapAccess_ImapValidateServerCert'][0]) && ($this->moduleSettings['ImapAccess_ImapValidateServerCert'][0] == 'novalidate-cert')) {
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$validate_opt = "novalidate-cert";
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}
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else {
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$validate_opt = "validate-cert";
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}
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$imap_server_address = $imap_server_name . ":" . $imap_port_number . "/" . $imap_encryption_protocol . "/" . $validate_opt;
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return $imap_server_address;
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}
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/**
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* This function returns the prefix for mailboxes.
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* If no prefix was given during configuration then "user" will be used (default for Cyrus).
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*
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* @return String prefix
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*/
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function getMailboxPrefix() {
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if (!isset($this->moduleSettings['ImapAccess_ImapUserPrefix'][0]) || ($this->moduleSettings['ImapAccess_ImapUserPrefix'][0] == '')) {
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return "user";
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}
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else {
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return $this->moduleSettings['ImapAccess_ImapUserPrefix'][0];
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}
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}
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/**
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* This function checks if the domain of the mailbox is not in the list of domains listed in the configuration.
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* If it is in the list then it returns false, otherwise returns true. If the list of domains is not set then it returns true.
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*
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* @return boolean true if domains match
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*/
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function isWrongDomain($email_domain) {
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$ret_result = true;
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if (isset($this->moduleSettings['ImapAccess_ImapDomain'][0])) {
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$domain_list_string = $this->moduleSettings['ImapAccess_ImapDomain'][0];
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$domains_array = explode(",", $domain_list_string);
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if (in_array($email_domain, $domains_array)) {
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$ret_result = false;
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}
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}
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else {
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$ret_result = false;
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}
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return $ret_result;
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}
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}
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?>
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