<?php
/* Copyright (C) 2002-2003  Rodolphe Quiedeville    <rodolphe@quiedeville.org>
 * Copyright (C) 2002-2003  Jean-Louis Bergamo      <jlb@j1b.org>
 * Copyright (C) 2004-2013  Laurent Destailleur     <eldy@users.sourceforge.net>
 * Copyright (C) 2004       Sebastien Di Cintio     <sdicintio@ressource-toi.org>
 * Copyright (C) 2004       Benoit Mortier          <benoit.mortier@opensides.be>
 * Copyright (C) 2009       Regis Houssin           <regis.houssin@inodbox.com>
 * Copyright (C) 2012       Marcos García           <marcosgdf@gmail.com>
 * Copyright (C) 2018       Frédéric France         <frederic.france@netlogic.fr>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

/**
 *	\file       htdocs/mailmanspip/class/mailmanspip.class.php
 *	\ingroup    member
 *	\brief      File of class to manage mailman and spip actions
 */

require_once DOL_DOCUMENT_ROOT.'/core/class/commonobject.class.php';
require_once DOL_DOCUMENT_ROOT.'/categories/class/categorie.class.php';
require_once DOL_DOCUMENT_ROOT.'/core/lib/functions2.lib.php';
require_once DOL_DOCUMENT_ROOT.'/core/lib/date.lib.php';


/**
 *	Class to manage mailman and spip
 */
class MailmanSpip
{
	/**
	 * @var DoliDB Database handler.
	 */
	public $db;

	/**
	 * @var string Error code (or message)
	 */
	public $error = '';

	/**
	 * @var string[]	Array of error strings
	 */
	public $errors = array();

	public $mladded_ok;
	public $mladded_ko;
	public $mlremoved_ok;
	public $mlremoved_ko;


	/**
	 *	Constructor
	 *
	 *	@param 		DoliDB		$db		Database handler
	 */
	public function __construct($db)
	{
		$this->db = $db;
	}

	/**
	 * Function used to check if SPIP is enabled on the system
	 *
	 * @return boolean
	 */
	public function isSpipEnabled()
	{
		if (defined("ADHERENT_USE_SPIP") && (ADHERENT_USE_SPIP == 1)) {
			return true;
		}

		return false;
	}

	/**
	 * Function used to check if the SPIP config is correct
	 *
	 * @return boolean
	 */
	public function checkSpipConfig()
	{
		if (defined('ADHERENT_SPIP_SERVEUR') && defined('ADHERENT_SPIP_USER') && defined('ADHERENT_SPIP_PASS') && defined('ADHERENT_SPIP_DB')) {
			if (ADHERENT_SPIP_SERVEUR != '' && ADHERENT_SPIP_USER != '' && ADHERENT_SPIP_PASS != '' && ADHERENT_SPIP_DB != '') {
				return true;
			}
		}

		return false;
	}

	/**
	 * Function used to connect to SPIP
	 *
	 * @return boolean|DoliDB		Boolean of DoliDB
	 */
	public function connectSpip()
	{
		$resource = getDoliDBInstance('mysql', ADHERENT_SPIP_SERVEUR, ADHERENT_SPIP_USER, ADHERENT_SPIP_PASS, ADHERENT_SPIP_DB, ADHERENT_SPIP_PORT);

		if ($resource->ok) {
			return $resource;
		}

		dol_syslog('Error when connecting to SPIP '.ADHERENT_SPIP_SERVEUR.' '.ADHERENT_SPIP_USER.' '.ADHERENT_SPIP_PASS.' '.ADHERENT_SPIP_DB, LOG_ERR);

		return false;
	}

	/**
	 * Function used to connect to Mailman
	 *
	 * @param	Adherent 	$object 	Object with the data
	 * @param	string 	$url    	Mailman URL to be called with patterns
	 * @param	string	$list		Name of mailing-list
	 * @return 	mixed				Boolean or string
	 */
	private function callMailman($object, $url, $list)
	{
		global $conf;

		//Patterns that are going to be replaced with their original value
		$patterns = array(
			'%LISTE%',
			'%EMAIL%',
			'%PASSWORD%',
			'%MAILMAN_ADMINPW%'
		);
		$replace = array(
			$list,
			$object->email,
			$object->pass,
			$conf->global->ADHERENT_MAILMAN_ADMINPW
		);

		$curl_url = str_replace($patterns, $replace, $url);
		dol_syslog('Calling Mailman: '.$curl_url);

		$ch = curl_init($curl_url);

		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
		curl_setopt($ch, CURLOPT_FAILONERROR, true);
		@curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
		curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, empty($conf->global->MAIN_USE_CONNECT_TIMEOUT) ? 5 : $conf->global->MAIN_USE_CONNECT_TIMEOUT);
		curl_setopt($ch, CURLOPT_TIMEOUT, empty($conf->global->MAIN_USE_RESPONSE_TIMEOUT) ? 30 : $conf->global->MAIN_USE_RESPONSE_TIMEOUT);
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
		curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

		$result = curl_exec($ch);
		dol_syslog('result curl_exec='.$result);

		//An error was found, we store it in $this->error for later
		if ($result === false || curl_errno($ch) > 0) {
			$this->error = curl_errno($ch).' '.curl_error($ch);
			dol_syslog('Error using curl '.$this->error, LOG_ERR);
		}

		curl_close($ch);

		return $result;
	}

	// phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
	/**
	 *  Fonction qui donne les droits redacteurs dans spip
	 *
	 *	@param	Adherent	$object		Object with data (->firstname, ->lastname, ->email and ->login)
	 *  @return	int					=0 if KO, >0 if OK
	 */
	public function add_to_spip($object)
	{
		// phpcs:enable
		dol_syslog(get_class($this)."::add_to_spip");

		if ($this->isSpipEnabled()) {
			if ($this->checkSpipConfig()) {
				$mydb = $this->connectSpip();

				if ($mydb) {
					require_once DOL_DOCUMENT_ROOT.'/core/lib/security2.lib.php';
					$mdpass = dol_hash($object->pass);
					$htpass = crypt($object->pass, makesalt());
					$query = "INSERT INTO spip_auteurs (nom, email, login, pass, htpass, alea_futur, statut) VALUES(\"".dolGetFirstLastname($object->firstname, $object->lastname)."\",\"".$object->email."\",\"".$object->login."\",\"$mdpass\",\"$htpass\",FLOOR(32000*RAND()),\"1comite\")";

					$result = $mydb->query($query);

					$mydb->close();

					if ($result) {
						return 1;
					} else {
						$this->error = $mydb->lasterror();
					}
				} else {
					$this->error = 'Failed to connect to SPIP';
				}
			} else {
				$this->error = 'BadSPIPConfiguration';
			}
		} else {
			$this->error = 'SPIPNotEnabled';
		}

		return 0;
	}

	// phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
	/**
	 *  Fonction qui enleve les droits redacteurs dans spip
	 *
	 *	@param	Adherent	$object		Object with data (->login)
	 *  @return	int					=0 if KO, >0 if OK
	 */
	public function del_to_spip($object)
	{
		// phpcs:enable
		dol_syslog(get_class($this)."::del_to_spip");

		if ($this->isSpipEnabled()) {
			if ($this->checkSpipConfig()) {
				$mydb = $this->connectSpip();

				if ($mydb) {
					$query = "DELETE FROM spip_auteurs WHERE login='".$object->login."'";

					$result = $mydb->query($query);

					$mydb->close();

					if ($result) {
						return 1;
					} else {
						$this->error = $mydb->lasterror();
					}
				} else {
					$this->error = 'Failed to connect to SPIP';
				}
			} else {
				$this->error = 'BadSPIPConfiguration';
			}
		} else {
			$this->error = 'SPIPNotEnabled';
		}

		return 0;
	}

	// phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
	/**
	 *  Fonction qui dit si cet utilisateur est un redacteur existant dans spip
	 *
	 *	@param	object	$object		Object with data (->login)
	 *  @return int     			1=exists, 0=does not exists, -1=error
	 */
	public function is_in_spip($object)
	{
		// phpcs:enable
		if ($this->isSpipEnabled()) {
			if ($this->checkSpipConfig()) {
				$mydb = $this->connectSpip();

				if ($mydb) {
					$query = "SELECT login FROM spip_auteurs WHERE login='".$object->login."'";

					$result = $mydb->query($query);

					if ($result) {
						if ($mydb->num_rows($result)) {
							// nous avons au moins une reponse
							$mydb->close($result);
							return 1;
						} else {
							// nous n'avons pas de reponse => n'existe pas
							$mydb->close($result);
							return 0;
						}
					} else {
						$this->error = $mydb->lasterror();
						$mydb->close();
					}
				} else {
					$this->error = 'Failed to connect to SPIP';
				}
			} else {
				$this->error = 'BadSPIPConfiguration';
			}
		} else {
			$this->error = 'SPIPNotEnabled';
		}

		return -1;
	}

	// phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
	/**
	 *  Subscribe an email to all mailing-lists
	 *
	 *	@param	Adherent	$object		Object with data (->email, ->pass, ->element, ->type)
	 *  @param	array	$listes    	To force mailing-list (string separated with ,)
	 *  @return	int		  			<0 if KO, >=0 if OK
	 */
	public function add_to_mailman($object, $listes = '')
	{
		// phpcs:enable
		global $conf, $langs, $user;

		dol_syslog(get_class($this)."::add_to_mailman");

		$this->mladded_ok = array();
		$this->mladded_ko = array();

		if (!function_exists("curl_init")) {
			$langs->load("errors");
			$this->error = $langs->trans("ErrorFunctionNotAvailableInPHP", "curl_init");
			return -1;
		}

		if ($conf->adherent->enabled) {	// Synchro for members
			if (!empty($conf->global->ADHERENT_MAILMAN_URL)) {
				if ($listes == '' && !empty($conf->global->ADHERENT_MAILMAN_LISTS)) {
					$lists = explode(',', $conf->global->ADHERENT_MAILMAN_LISTS);
				} else {
					$lists = explode(',', $listes);
				}

				$categstatic = new Categorie($this->db);

				foreach ($lists as $list) {
					// Filter on type something (ADHERENT_MAILMAN_LISTS = "mailinglist0,TYPE:typevalue:mailinglist1,CATEG:categvalue:mailinglist2")
					$tmp = explode(':', $list);
					if (!empty($tmp[2])) {
						$list = $tmp[2];
						if ($object->element == 'member' && $tmp[0] == 'TYPE' && $object->type != $tmp[1]) {    // Filter on member type label
							dol_syslog("We ignore list ".$list." because object member type ".$object->type." does not match ".$tmp[1], LOG_DEBUG);
							continue;
						}
						if ($object->element == 'member' && $tmp[0] == 'CATEG' && !in_array($tmp[1], $categstatic->containing($object->id, 'member', 'label'))) {    // Filter on member category
							dol_syslog("We ignore list ".$list." because object member is not into category ".$tmp[1], LOG_DEBUG);
							continue;
						}
					}

					//We call Mailman to subscribe the user
					$result = $this->callMailman($object, $conf->global->ADHERENT_MAILMAN_URL, $list);

					if ($result === false) {
						$this->mladded_ko[$list] = $object->email;
						return -2;
					} else {
						$this->mladded_ok[$list] = $object->email;
					}
				}
				return count($lists);
			} else {
				$this->error = "ADHERENT_MAILMAN_URL not defined";
				return -1;
			}
		}
	}

	// phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
	/**
	 *  Unsubscribe an email from all mailing-lists
	 *  Used when a user is resiliated
	 *
	 *	@param	Adherent	$object		Object with data (->email, ->pass, ->element, ->type)
	 *  @param	array	$listes     To force mailing-list (string separated with ,)
	 *  @return int         		<0 if KO, >=0 if OK
	 */
	public function del_to_mailman($object, $listes = '')
	{
		// phpcs:enable
		global $conf, $langs, $user;

		dol_syslog(get_class($this)."::del_to_mailman");

		$this->mlremoved_ok = array();
		$this->mlremoved_ko = array();

		if (!function_exists("curl_init")) {
			$langs->load("errors");
			$this->error = $langs->trans("ErrorFunctionNotAvailableInPHP", "curl_init");
			return -1;
		}

		if ($conf->adherent->enabled) {	// Synchro for members
			if (!empty($conf->global->ADHERENT_MAILMAN_UNSUB_URL)) {
				if ($listes == '' && !empty($conf->global->ADHERENT_MAILMAN_LISTS)) {
					$lists = explode(',', $conf->global->ADHERENT_MAILMAN_LISTS);
				} else {
					$lists = explode(',', $listes);
				}

				$categstatic = new Categorie($this->db);

				foreach ($lists as $list) {
					// Filter on type something (ADHERENT_MAILMAN_LISTS = "mailinglist0,TYPE:typevalue:mailinglist1,CATEG:categvalue:mailinglist2")
					$tmp = explode(':', $list);
					if (!empty($tmp[2])) {
						$list = $tmp[2];
						if ($object->element == 'member' && $tmp[0] == 'TYPE' && $object->type != $tmp[1]) {    // Filter on member type label
							dol_syslog("We ignore list ".$list." because object member type ".$object->type." does not match ".$tmp[1], LOG_DEBUG);
							continue;
						}
						if ($object->element == 'member' && $tmp[0] == 'CATEG' && !in_array($tmp[1], $categstatic->containing($object->id, 'member', 'label'))) {    // Filter on member category
							dol_syslog("We ignore list ".$list." because object member is not into category ".$tmp[1], LOG_DEBUG);
							continue;
						}
					}

					//We call Mailman to unsubscribe the user
					$result = $this->callMailman($object, $conf->global->ADHERENT_MAILMAN_UNSUB_URL, $list);

					if ($result === false) {
						$this->mlremoved_ko[$list] = $object->email;
						return -2;
					} else {
						$this->mlremoved_ok[$list] = $object->email;
					}
				}
				return count($lists);
			} else {
				$this->error = "ADHERENT_MAILMAN_UNSUB_URL not defined";
				return -1;
			}
		}
	}
}
