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<?php
/**
* ---------------------------------------------------------------------
*
* GLPI - Gestionnaire Libre de Parc Informatique
*
* http://glpi-project.org
*
* @copyright 2015-2022 Teclib' and contributors.
* @copyright 2003-2014 by the INDEPNET Development Team.
* @licence https://www.gnu.org/licenses/gpl-3.0.html
*
* ---------------------------------------------------------------------
*
* LICENSE
*
* This file is part of GLPI.
*
* 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/>.
*
* ---------------------------------------------------------------------
*/
use Glpi\Application\ErrorHandler;
use Glpi\Plugin\Hooks;
/**
* Saved search alerts
**/
class SavedSearch_Alert extends CommonDBChild
{
// From CommonDBChild
public static $itemtype = 'SavedSearch';
public static $items_id = 'savedsearches_id';
public $dohistory = true;
protected $displaylist = false;
const OP_LESS = 0;
const OP_LESSEQ = 1;
const OP_EQ = 2;
const OP_NOT = 3;
const OP_GREATEQ = 4;
const OP_GREAT = 5;
public static function getTypeName($nb = 0)
{
return _n('Saved search alert', 'Saved searches alerts', $nb);
}
public function getTabNameForItem(CommonGLPI $item, $withtemplate = 0)
{
// can exists for template
if (
($item->getType() == 'SavedSearch')
&& SavedSearch::canView()
) {
$nb = 0;
if ($_SESSION['glpishow_count_on_tabs']) {
$nb = countElementsInTable(
$this->getTable(),
['savedsearches_id' => $item->getID()]
);
}
return self::createTabEntry(self::getTypeName(Session::getPluralNumber()), $nb);
}
return '';
}
public static function displayTabContentForItem(CommonGLPI $item, $tabnum = 1, $withtemplate = 0)
{
self::showForSavedSearch($item, $withtemplate);
return true;
}
public function defineTabs($options = [])
{
$ong = [];
$this->addDefaultFormTab($ong);
$this->addStandardTab('Log', $ong, $options);
return $ong;
}
/**
* Print the form
*
* @param integer $ID integer ID of the item
* @param array $options array
* - target for the Form
* - computers_id ID of the computer for add process
*
* @return true if displayed false if item not found or not right to display
**/
public function showForm($ID, array $options = [])
{
/*if (!Session::haveRight("savedsearch", UPDATE)) {
return false;
}*/
$search = new SavedSearch();
if ($ID > 0) {
$this->check($ID, READ);
$search->getFromDB($this->fields['savedsearches_id']);
} else {
$this->check(-1, CREATE, $options);
$search->getFromDB($options['savedsearches_id']);
}
$count = null;
try {
if ($data = $search->execute()) {
$count = $data['data']['totalcount'];
}
} catch (\RuntimeException $e) {
ErrorHandler::getInstance()->handleException($e);
}
$this->showFormHeader($options);
if ($this->isNewID($ID)) {
echo Html::hidden('savedsearches_id', ['value' => $options['savedsearches_id']]);
}
echo "<tr class='tab_bg_1'>";
echo "<td>" . SavedSearch::getTypeName(1) . "</td>";
echo "<td>";
echo $search->getLink();
if ($count !== null) {
echo "<span class='primary-bg primary-fg count float-none'>$count</span></a>";
}
echo "</td>";
echo "<td>" . __('Name') . "</td>";
echo "<td>";
echo Html::input('name', ['value' => $this->fields['name']]);
echo "</td></tr>";
echo "<tr class='tab_bg_1'>";
echo "<td>";
echo __('Operator');
echo Html::showToolTip(__('Compare number of results the search returns against the specified value with selected operator'));
echo "</td>";
echo "<td>";
Dropdown::showFromArray(
'operator',
$this->getOperators(),
['value' => $this->getField('operator')]
);
echo "</td><td>" . __('Value') . "</td>";
echo "<td>";
echo "<input type='number' min='0' name='value' value='" . $this->getField('value') . "' required='required'/>";
echo "</td></tr>";
echo "<tr class='tab_bg_1'>";
echo "<td>" . __('Active') . "</td>";
echo "<td>";
Dropdown::showYesNo('is_active', $this->getField('is_active'));
echo "</td><td>" . __('Notification frequency') . "</td>";
echo "<td>";
$alert = new Alert();
$alert->getFromDBByCrit([
'items_id' => $this->fields['savedsearches_id'],
'itemtype' => SavedSearch::getType(),
]);
Dropdown::showFrequency('frequency', $this->fields["frequency"]);
echo "</td></tr>";
$this->showFormButtons($options);
return true;
}
/**
* Print the searches alerts
*
* @param SavedSearch $search Object instance
* @param boolean $withtemplate Template or basic item (default '')
*
* @return void
**/
public static function showForSavedSearch(SavedSearch $search, $withtemplate = 0)
{
global $DB;
$ID = $search->getID();
if (
!$search->getFromDB($ID)
|| !$search->can($ID, READ)
) {
return false;
}
$canedit = $search->canEdit($ID);
echo "<div class='center'>";
echo "<div class='firstbloc'>";
$iterator = $DB->request([
'FROM' => Notification::getTable(),
'WHERE' => [
'itemtype' => self::getType(),
'event' => 'alert' . ($search->getField('is_private') ? '' : '_' . $search->getID())
]
]);
if (!$iterator->numRows()) {
echo "<span class='required'><strong>" . __('Notification does not exists!') . "</strong></span>";
if ($canedit) {
echo "<br/><a href='{$search->getFormURLWithID($search->fields['id'])}&create_notif=true'>"
. __('create it now') . "</a>";
$canedit = false;
}
} else {
echo _n('Notification used:', 'Notifications used:', $iterator->numRows()) . " ";
$first = true;
foreach ($iterator as $row) {
if (!$first) {
echo ', ';
}
if (Session::haveRight('notification', UPDATE)) {
$url = Notification::getFormURLWithID($row['id']);
echo "<a href='$url'>" . $row['name'] . "</a>";
} else {
echo $row['name'];
}
$first = false;
}
}
echo '</div>';
if (
$canedit
&& !(!empty($withtemplate) && ($withtemplate == 2))
) {
echo "<div class='firstbloc'>" .
"<a class='btn btn-primary' href='" . self::getFormURL() . "?savedsearches_id=$ID&withtemplate=" .
$withtemplate . "'>";
echo __('Add an alert');
echo "</a></div>\n";
}
$iterator = $DB->request([
'FROM' => self::getTable(),
'WHERE' => ['savedsearches_id' => $ID]
]);
echo "<table class='tab_cadre_fixehov'>";
$colspan = 4;
if ($iterator->numrows()) {
echo "<tr class='noHover'><th colspan='$colspan'>" . self::getTypeName($iterator->numrows()) .
"</th></tr>";
$header = "<tr><th>" . __('Name') . "</th>";
$header .= "<th>" . __('Operator') . "</th>";
$header .= "<th>" . __('Value') . "</th>";
$header .= "<th>" . __('Active') . "</th>";
$header .= "</tr>";
echo $header;
$alert = new self();
foreach ($iterator as $data) {
$alert->getFromDB($data['id']);
echo "<tr class='tab_bg_2'>";
echo "<td>" . $alert->getLink() . "</td>";
echo "<td>" . self::getOperators($data['operator']) . "</td>";
echo "<td>" . $data['value'] . "</td>";
echo "<td>" . Dropdown::getYesNo($data['is_active']) . "</td>";
echo "</tr>";
Session::addToNavigateListItems(__CLASS__, $data['id']);
}
echo $header;
} else {
echo "<tr class='tab_bg_2'><th colspan='$colspan'>" . __('No item found') . "</th></tr>";
}
echo "</table>";
echo "</div>";
}
/**
* Get operators
*
* @param integer $id ID for the operator to retrieve, or null for the full list
*
* @return string|array
*/
public static function getOperators($id = null)
{
$ops = [
self::OP_LESS => '<',
self::OP_LESSEQ => '<=',
self::OP_EQ => '=',
self::OP_NOT => '!=',
self::OP_GREATEQ => '>=',
self::OP_GREAT => '>'
];
return ($id === null ? $ops : $ops[$id]);
}
public static function cronInfo($name)
{
switch ($name) {
case 'send':
return ['description' => __('Saved searches alerts')];
}
return [];
}
/**
* Summary of saveContext
*
* Save $_SESSION and $CFG_GLPI into the returned array
*
* @return array[] which contains a copy of $_SESSION and $CFG_GLPI
*/
private static function saveContext()
{
global $CFG_GLPI;
$context = [];
$context['$_SESSION'] = $_SESSION;
$context['$CFG_GLPI'] = $CFG_GLPI;
return $context;
}
/**
* Summary of restoreContext
*
* restore former $_SESSION and $CFG_GLPI
* to be sure that logs will be in GLPI default datetime and language
* and that session is restored for the next crontaskaction
*
* @param mixed $context is the array returned by saveContext
*/
private static function restoreContext($context)
{
global $CFG_GLPI;
$_SESSION = $context['$_SESSION'];
$CFG_GLPI = $context['$CFG_GLPI'];
Session::loadLanguage();
Plugin::doHook(Hooks::INIT_SESSION);
}
/**
* Send saved searches alerts
*
* @param CronTask $task CronTask instance
*
* @return int : <0 : need to run again, 0:nothing to do, >0:ok
*/
public static function cronSavedSearchesAlerts($task)
{
global $DB;
$iterator = $DB->request([
'SELECT' => [
'glpi_savedsearches_alerts.*'
],
'FROM' => self::getTable(),
'LEFT JOIN' => [
'glpi_alerts' => [
'FKEY' => [
'glpi_alerts' => 'items_id',
'glpi_savedsearches_alerts' => 'id',
[
'AND' => [
'glpi_alerts.itemtype' => SavedSearch_Alert::class,
'glpi_alerts.type' => Alert::PERIODICITY,
],
],
]
]
],
'WHERE' => [
'glpi_savedsearches_alerts.is_active' => true,
'OR' => [
['glpi_alerts.date' => null],
['glpi_alerts.date' => ['<', new QueryExpression(sprintf(
'CURRENT_TIMESTAMP() - INTERVAL %s second',
$DB->quoteName('glpi_savedsearches_alerts.frequency')
))
]
],
]
]
]);
if ($iterator->numrows()) {
$savedsearch = new SavedSearch();
if (!isset($_SESSION['glpiname'])) {
//required from search class
$_SESSION['glpiname'] = 'crontab';
}
// Will save $_SESSION and $CFG_GLPI cron context into an array
$context = self::saveContext();
foreach ($iterator as $row) {
//execute saved search to get results
try {
$savedsearch->getFromDB($row['savedsearches_id']);
if (isCommandLine()) {
//search requires a logged in user...
$user = new User();
$user->getFromDB($savedsearch->fields['users_id']);
$auth = new Auth();
$auth->user = $user;
$auth->auth_succeded = true;
Session::init($auth);
}
$count = null;
if ($data = $savedsearch->execute(true)) {
$count = (int)$data['data']['totalcount'];
} else {
$data = [];
}
$value = (int)$row['value'];
$notify = false;
$tr_op = null;
switch ($row['operator']) {
case self::OP_LESS:
$notify = $count < $value;
$tr_op = __('less than');
break;
case self::OP_LESSEQ:
$notify = $count <= $value;
$tr_op = __('less or equals than');
break;
case self::OP_EQ:
$notify = $count == $value;
$tr_op = __('equals to');
break;
case self::OP_NOT:
$notify = $count != $value;
$tr_op = __('not equals to');
break;
case self::OP_GREATEQ:
$notify = $count >= $value;
$tr_op = __('greater or equals than');
break;
case self::OP_GREAT:
$notify = $count > $value;
$tr_op = __('greater than');
break;
default:
throw new \RuntimeException("Unknown operator '{$row['operator']}'");
}
//TRANS : %1$s is the name of the saved search,
// %2$s is the comparison translated text
// %3$s is the value compared to
$data['msg'] = sprintf(
__('Results count for %1$s is %2$s %3$s'),
$savedsearch->getName(),
$tr_op,
$value
);
// Will restore previously saved $_SESSION and $CFG_GLPI:
// To be sure that logs will be in GLPI with default datetime and language
// and that notifications are sent even if $_SESSION['glpinotification_to_myself'] is false
// and to restore default cron $_SESSION and $CFG_GLPI global variables for next cron task
self::restoreContext($context);
if ($notify) {
$event = 'alert' . ($savedsearch->getField('is_private') ? '' : '_' . $savedsearch->getID());
$savedsearch_alert = new self();
$savedsearch_alert->getFromDB($row['id']);
$data['savedsearch'] = $savedsearch;
NotificationEvent::raiseEvent($event, $savedsearch_alert, $data);
$task->addVolume(1);
$alert = new Alert();
$alert->deleteByCriteria([
'itemtype' => SavedSearch_Alert::class,
'items_id' => $row['id'],
], 1);
$alert->add([
'type' => Alert::PERIODICITY,
'itemtype' => SavedSearch_Alert::class,
'items_id' => $row['id'],
]);
}
} catch (\Exception $e) {
self::restoreContext($context);
ErrorHandler::getInstance()->handleException($e);
}
}
return 1;
}
return 0;
}
public function getItemsForLog($itemtype, $items_id)
{
return ['new' => $this];
}
}