zoneminder/web/ajax/snapshots.php

234 lines
7.6 KiB
PHP

<?php
require_once('includes/Snapshot.php');
require_once('includes/Filter.php');
$message = '';
$data = array();
//
// INITIALIZE AND CHECK SANITY
//
if (!canView('Snapshots'))
$message = 'Insufficient permissions for user '.$user['Username'];
$task = '';
if (empty($_REQUEST['task'])) {
$message = 'Must specify a task';
} else {
$task = $_REQUEST['task'];
}
if (empty($_REQUEST['ids'])) {
if ($task != 'query') $message = 'No snapshot id(s) supplied';
} else {
$ids = $_REQUEST['ids'];
}
if ($message) {
ajaxError($message);
return;
}
// Search contains a user entered string to search on
$search = isset($_REQUEST['search']) ? $_REQUEST['search'] : '';
// Advanced search contains an array of "column name" => "search text" pairs
// Bootstrap table sends json_ecoded array, which we must decode
$advsearch = isset($_REQUEST['advsearch']) ? json_decode($_REQUEST['advsearch'], JSON_OBJECT_AS_ARRAY) : array();
// Sort specifies the name of the column to sort on
$sort = 'Id';
if (isset($_REQUEST['sort'])) {
$sort = $_REQUEST['sort'];
}
// Offset specifies the starting row to return, used for pagination
$offset = 0;
if (isset($_REQUEST['offset'])) {
if ((!is_int($_REQUEST['offset']) and !ctype_digit($_REQUEST['offset']))) {
ZM\Error('Invalid value for offset: '.$_REQUEST['offset']);
} else {
$offset = $_REQUEST['offset'];
}
}
// Order specifies the sort direction, either asc or desc
$order = (isset($_REQUEST['order']) and (strtolower($_REQUEST['order']) == 'asc')) ? 'ASC' : 'DESC';
// Limit specifies the number of rows to return
// Set the default to 0 for events view, to prevent an issue with ALL pagination
$limit = 0;
if (isset($_REQUEST['limit'])) {
if ((!is_int($_REQUEST['limit']) and !ctype_digit($_REQUEST['limit']))) {
ZM\Error('Invalid value for limit: ' . $_REQUEST['limit']);
} else {
$limit = $_REQUEST['limit'];
}
}
//
// MAIN LOOP
//
switch ($task) {
case 'delete' :
if (!canEdit('Snapshots')) {
ajaxError('Insufficient permissions for user '.$user['Username']);
return;
}
foreach ($ids as $id) $data[] = deleteRequest($id);
break;
case 'query' :
$data = queryRequest($search, $advsearch, $sort, $offset, $order, $limit);
break;
default :
ZM\Fatal("Unrecognised task '$task'");
} // end switch task
ajaxResponse($data);
//
// FUNCTION DEFINITIONS
//
function deleteRequest($id) {
$message = array();
$snapshot = new ZM\Snapshot($id);
if ( !$snapshot->Id() ) {
$message[] = array($id=>'Snapshot not found.');
//} else if ( $snapshot->Archived() ) {
//$message[] = array($id=>'Event is archived, cannot delete it.');
} else {
$snapshot->delete();
$message[] = array($id=>'Snapshot deleted.');
}
return $message;
}
function queryRequest($search, $advsearch, $sort, $offset, $order, $limit) {
$data = array(
'total' => 0,
'totalNotFiltered' => 0,
'rows' => array(),
'updated' => preg_match('/%/', DATE_FMT_CONSOLE_LONG) ? strftime(DATE_FMT_CONSOLE_LONG) : date(DATE_FMT_CONSOLE_LONG)
);
// Put server pagination code here
// The table we want our data from
$table = 'Snapshots';
// The names of the dB columns in the events table we are interested in
$columns = array('Id', 'Name', 'Description', 'CreatedOn');
if ( !in_array($sort, array_merge($columns)) ) {
ZM\Error('Invalid sort field: ' . $sort);
$sort = 'Id';
}
$values = array();
$likes = array();
$where = '';
$col_str = '*';
$sql = 'SELECT ' .$col_str. ' FROM `Snapshots`'.$where.' ORDER BY '.$sort.' '.$order;
$unfiltered_rows = array();
$snapshot_ids = array();
ZM\Debug('Calling the following sql query: ' .$sql);
$query = dbQuery($sql, $values);
if ( $query ) {
while ( $row = dbFetchNext($query) ) {
$snapshot = new ZM\Snapshot($row);
$snapshot->remove_from_cache();
$snapshot_ids[] = $snapshot->Id();
$unfiltered_rows[] = $row;
} # end foreach row
}
ZM\Debug('Have ' . count($unfiltered_rows) . ' snapshots matching base filter.');
$filtered_rows = null;
if ( count($advsearch) or $search != '' ) {
$search_filter = new ZM\Filter();
if (count($snapshot_ids))
$search_filter = $search_filter->addTerm(array('cnj'=>'and', 'attr'=>'Id', 'op'=>'IN', 'val'=>$snapshot_ids, 'tablename'=>'Snapshots'));
// There are two search bars in the log view, normal and advanced
// Making an exuctive decision to ignore the normal search, when advanced search is in use
// Alternatively we could try to do both
if ( count($advsearch) ) {
$terms = array();
foreach ( $advsearch as $col=>$text ) {
$terms[] = array('cnj'=>'and', 'attr'=>$col, 'op'=>'LIKE', 'val'=>$text, 'tablename'=>'Snapshots');
} # end foreach col in advsearch
$terms[0]['obr'] = 1;
$terms[count($terms)-1]['cbr'] = 1;
$search_filter->addTerms($terms);
} else if ( $search != '' ) {
$search = '%' .$search. '%';
$terms = array();
foreach ( $columns as $col ) {
$terms[] = array('cnj'=>'or', 'attr'=>$col, 'op'=>'LIKE', 'val'=>$search, 'tablename'=>'Snapshots');
}
$terms[0]['obr'] = 1;
$terms[0]['cnj'] = 'and';
$terms[count($terms)-1]['cbr'] = 1;
$search_filter = $search_filter->addTerms($terms, array('obr'=>1, 'cbr'=>1, 'op'=>'OR'));
} # end if search
$sql = 'SELECT ' .$col_str. ' FROM `Snapshots` WHERE '.$search_filter->sql().' ORDER BY ' .$sort. ' ' .$order;
ZM\Debug('Calling the following sql query: ' .$sql);
$filtered_rows = dbFetchAll($sql);
ZM\Debug('Have ' . count($filtered_rows) . ' snapshots matching search filter.');
} else {
$filtered_rows = $unfiltered_rows;
} # end if search_filter->terms() > 1
$returned_rows = array();
foreach ( array_slice($filtered_rows, $offset, $limit) as $row ) {
$snapshot = new ZM\Snapshot($row);
$row['imgHtml'] = '';
// Modify the row data as needed
foreach ( $snapshot->Events() as $event ) {
$scale = intval(5*100*ZM_WEB_LIST_THUMB_WIDTH / $event->Width());
$imgSrc = $event->getThumbnailSrc(array(), '&amp;');
$row['imgHtml'] .= '<img id="thumbnail' .$event->Id(). '" src="' .$imgSrc. '" alt="Event '.$event->Id().'" width="' .validInt($event->ThumbnailWidth()). '" height="' .validInt($event->ThumbnailHeight()).'"/>';
}
$row['Name'] = validHtmlStr($row['Name']);
$row['Description'] = validHtmlStr($row['Description']);
//$row['Archived'] = $row['Archived'] ? translate('Yes') : translate('No');
//$row['Emailed'] = $row['Emailed'] ? translate('Yes') : translate('No');
//$row['Cause'] = validHtmlStr($row['Cause']);
$row['CreatedOn'] = strftime(STRF_FMT_DATETIME_SHORTER, strtotime($row['CreatedOn']));
//$row['StartDateTime'] = strftime(STRF_FMT_DATETIME_SHORTER, strtotime($row['StartDateTime']));
//$row['EndDateTime'] = $row['EndDateTime'] ? strftime(STRF_FMT_DATETIME_SHORTER, strtotime($row['EndDateTime'])) : null;
//$row['Length'] = gmdate('H:i:s', $row['Length'] );
//$row['Storage'] = ( $row['StorageId'] and isset($StorageById[$row['StorageId']]) ) ? $StorageById[$row['StorageId']]->Name() : 'Default';
//$row['Notes'] = nl2br(htmlspecialchars($row['Notes']));
//$row['DiskSpace'] = human_filesize($event->DiskSpace());
//
$returned_rows[] = $row;
} # end foreach row matching search
$data['rows'] = $returned_rows;
# totalNotFiltered must equal total, except when either search bar has been used
$data['totalNotFiltered'] = count($unfiltered_rows);
if ( $search != '' || count($advsearch) ) {
$data['total'] = count($filtered_rows);
} else {
$data['total'] = $data['totalNotFiltered'];
}
return $data;
}
?>