mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-26 18:03:39 +01:00
610 lines
23 KiB
PHP
610 lines
23 KiB
PHP
<?php
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/**
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* API: loading for web-components modified eTemplate from server
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*
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* Usage: /egroupware/api/etemplate.php/<app>/templates/default/<name>.xet
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*
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* @link https://www.egroupware.org
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* @author Ralf Becker <rb@egroupware-org>
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* @package api
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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*/
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use EGroupware\Api;
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// add et2- prefix to following widgets/tags, if NO <overlay legacy="true"
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const ADD_ET2_PREFIX_REGEXP = '#<((/?)([vh]?box))(/?|\s[^>]*)>#m';
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const ADD_ET2_PREFIX_LAST_GROUP = 4;
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// unconditional of legacy add et2- prefix to this widgets
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const ADD_ET2_PREFIX_LEGACY_REGEXP = '#<((/?)(tabbox|description|searchbox|textbox|label|avatar|lavatar|image|appicon|colorpicker|checkbox|url(-email|-phone|-fax)?|vfs-mime|vfs-uid|vfs-gid|link|link-[a-z]+|favorites))(/?|\s[^>]*)>#m';
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const ADD_ET2_PREFIX_LEGACY_LAST_GROUP = 5;
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// switch evtl. set output-compression off, as we can't calculate a Content-Length header with transparent compression
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ini_set('zlib.output_compression', 0);
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$GLOBALS['egw_info'] = array(
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'flags' => array(
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'currentapp' => 'api',
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'noheader' => true,
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// miss-use session creation callback to send the template, in case we have no session
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'autocreate_session_callback' => 'send_template',
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'nocachecontrol' => true,
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)
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);
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$start = microtime(true);
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include dirname(__DIR__).'/header.inc.php';
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send_template();
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/**
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* Give usage plus option error and exit
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*
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* @param string $prog
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* @param string? $err
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* @return void
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*/
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function usage($prog, $err=null)
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{
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error_log("Usage: $prog [(-i|--in-place)] <xet-file>\n");
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error_log("\t convert <xet-file> to new syntax and output or replace it in-place.\n\n");
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if ($err) error_log("$err\n\n");
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exit;
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}
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function send_template()
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{
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$header_include = microtime(true);
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if (PHP_SAPI === 'cli')
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{
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$in_place = false;
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$args = $_SERVER['argv'];
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$prog = array_shift($args);
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while($args[0][0] === '-')
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{
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switch($arg = array_shift($args))
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{
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case '-i':
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case '--in-place':
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$in_place = true;
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break;
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default:
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usage($prog, "Invalid argument '$arg'!");
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}
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if (count($args) !== 1)
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{
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usage($prog);
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}
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}
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$fspath = array_shift($args);
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if ($fspath[0] !== '/') $fspath = '/'.$fspath;
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}
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else
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{
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// release session, as we don't need it and it blocks parallel requests
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$GLOBALS['egw']->session->commit_session();
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header('Content-Type: application/xml; charset=UTF-8');
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$fspath = $_SERVER['PATH_INFO'];
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}
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// check for customized template in VFS
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list(, $app, , $template, $name) = explode('/', $fspath);
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$path = Api\Etemplate::rel2path(Api\Etemplate::relPath($app . '.' . basename($name, '.xet'), $template));
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if(empty($path) || !file_exists($path) || !is_readable($path))
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{
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if (PHP_SAPI === 'cli')
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{
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usage("Path '$path' NOT found!");
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}
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else
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{
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http_response_code(404);
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}
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exit;
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}
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$cache = $GLOBALS['egw_info']['server']['temp_dir'].'/egw_cache/eT2-Cache-'.
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$GLOBALS['egw_info']['server']['install_id'].'-'.str_replace('/', '-', $_SERVER['PATH_INFO']);
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if (PHP_SAPI !== 'cli' && file_exists($cache) && filemtime($cache) > max(filemtime($path), filemtime(__FILE__)) &&
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($str = file_get_contents($cache)) !== false)
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{
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$cache_read = microtime(true);
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}
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elseif(($str = file_get_contents($path)) !== false)
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{
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// replace single quote enclosing attribute values with double quotes
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$str = preg_replace_callback("#([a-z_-]+)='([^']*)'([ />])#i", static function($matches){
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return $matches[1].'="'.str_replace('"', '"', $matches[2]).'"'.$matches[3];
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}, $str);
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// fix <menulist...><menupopup type="select-*"/></menulist> --> <select type="select-*" .../>
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$str = preg_replace('#<menulist([^>]*)>[\r\n\s]*(<!--[^>]+-->[\r\n\s]*)?<menupopup([^>]+>)[\r\n\s]*</menulist>#', '$2<select$1$3', $str);
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$str = preg_replace('#<menupopup([^>]*)>#', '<select$1>', $str);
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// fix legacy options, so new client-side has not to deal with them
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$str = preg_replace_callback('#<([^- />]+)(-[^ ]+)?[^>]* (options="([^"]+)")[ />]#', static function ($matches) {
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// take care of (static) type attribute, if used
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if (preg_match('/ type="([a-z-]+)"/', $matches[0], $type))
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{
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str_replace('<' . $matches[1] . $matches[2], '<' . $type[1], $matches[0]);
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str_replace($type[0], '', $matches[0]);
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list($matches[1], $matches[2]) = explode('-', $type[1], 2);
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if (!empty($matches[2])) $matches[2] = '-'.$matches[2];
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}
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static $legacy_options = array(
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// use "ignore" to ignore further comma-sep. values, otherwise they are all in last attribute
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'select' => 'empty_label,ignore',
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'select-account' => 'empty_label,account_type,ignore',
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'select-number' => 'empty_label,min,max,interval,suffix',
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'select-cat' => 'empty_label,global_categories,ignore,application,parentCat,owner',
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'box' => ',cellpadding,cellspacing,keep',
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'hbox' => 'cellpadding,cellspacing,keep',
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'vbox' => 'cellpadding,cellspacing,keep',
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'groupbox' => 'cellpadding,cellspacing,keep',
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'checkbox' => 'selected_value,unselected_value,ro_true,ro_false',
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'radio' => 'set_value,ro_true,ro_false',
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'customfields' => 'sub-type,use-private,field-names',
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'date' => 'data_format,ignore',
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// Legacy option "mode" was never implemented in et2
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'description' => 'bold-italic,link,activate_links,label_for,link_target,link_popup_size,link_title',
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'button' => 'image,ro_image',
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'buttononly' => 'image,ro_image',
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'link' => 'app',
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'link-entry' => 'only_app,application_list',
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'nextmatch-filterheader' => 'empty_label',
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// disable legacy-options conversation for nm-customfilter as it breaks infolog and addressbook index templates
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//'nextmatch-customfilter' => 'widget_type,widget_options',
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'nextmatch-accountfilter' => 'empty_label,account_type,ignore',
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);
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// prefer more specific type-subtype over just type
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$names = $legacy_options[$matches[1] . $matches[2]] ?? $legacy_options[trim($matches[1])] ?? null;
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if (isset($names))
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{
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$names = explode(',', $names);
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$values = Api\Etemplate\Widget::csv_split($matches[4], count($names));
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if (count($values) < count($names))
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{
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$values = array_merge($values, array_fill(count($values), count($names) - count($values), ''));
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}
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$attrs = array_diff(array_combine($names, $values), ['', null]);
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unset($attrs['ignore']);
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// fix select options can be either multiple or empty_label
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if ($matches[1] === 'select' && !empty($attrs['empty_label']) && (int)$attrs['empty_label'] > 0)
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{
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$attrs['multiple'] = (int)$attrs['empty_label'];
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unset($matches['empty_label']);
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}
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$options = '';
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foreach ($attrs as $attr => $value)
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{
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$options .= $attr . '="' . $value . '" ';
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}
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return str_replace($matches[3], $options, $matches[0]);
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}
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return $matches[0];
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}, $str);
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// Change details title --> summary (This can currently not kope with nested details like in smallpart.curse.xet
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$str = preg_replace_callback('#<details([^>]*?)>(.*?)</details>#su', static function ($matches)
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{
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$attrs = parseAttrs($matches[1]);
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if (isset($attrs['title']) && !isset($attrs['summary']))
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{
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$attrs['summary'] = $attrs['title'];
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unset($attrs['title']);
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}
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return "<et2-details" . stringAttrs($attrs) . '>' . $matches[2] . "</et2-details>";
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}, $str);
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// Change splitter dockside -> primary + vertical
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$str = preg_replace_callback('#<split([^>]*?)>(.*?)</split>#su', static function ($matches)
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{
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$tag = 'et2-split';
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$attrs = parseAttrs($matches[1]);
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$attrs['vertical'] = $attrs['orientation'] === 'h' ? "true" : "false";
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if (str_contains($attrs['dock_side'], 'top') || str_contains($attrs['dock_side'], 'left'))
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{
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$attrs['primary'] = "end";
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}
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elseif (str_contains($attrs['dock_side'], 'bottom') || str_contains($attrs['dock_side'], 'right'))
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{
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$attrs['primary'] = "start";
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}
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unset($attrs['dock_side']);
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return "<$tag" . stringAttrs($attrs) . '>' . $matches[2] . "</$tag>";
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}, $str);
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// modify <(image|description) expose_view="true" --> <et2-*-expose
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$str = preg_replace('/<(image|description)\s([^><]*)expose_view="true"\s([^><]*)\\/>/',
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'<et2-$1-expose $2 $3></et2-$1-expose>', $str);
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// fix <textbox multiline="true" or rows="..." --> <et2-textarea .../>
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$str = preg_replace('#<textbox(.*?)\smultiline="true"(.*?)/>#', '<et2-textarea$1$2></et2-textarea>', $str);
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$str = preg_replace('#<textbox(.*?\srows="\d+".*?)/>#', '<et2-textarea$1></et2-textarea>', $str);
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// fix <(textbox|int(eger)?|float|passwd) precision="int(eger)?|float|passwd" .../> --> <et2-number precision=.../>, <et2-password .../> or <et2-textbox .../>
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$str = preg_replace_callback('#<(textbox|int(eger)?|float|number|passwd).*?\s(type="(int(eger)?|float|passwd)")?.*?(/|></textbox)>#',
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static function ($matches)
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{
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if ($matches[1] === 'passwd' || $matches['4'] === 'passwd')
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{
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return '<et2-password'.str_replace('type="passwd"', '',
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substr($matches[0], 1+strlen($matches[1]), -strlen($matches[6])-1)).'></et2-password>';
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}
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if ($matches[1] === 'textbox' && !in_array($matches[4], ['float', 'int', 'integer'], true))
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{
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return '<et2-'.substr($matches[0], 1, -strlen($matches[6])-1).'></et2-textbox>'; // regular textbox --> nothing to do
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}
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$type = $matches[1] === 'float' || $matches[4] === 'float' ? 'float' : 'int';
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$tag = str_replace('<' . $matches[1], '<et2-number', substr($matches[0], 0, -2));
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if (!empty($matches[3])) $tag = str_replace($matches[3], '', $tag);
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if ($type !== 'float') $tag .= ' precision="0"';
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return $tag . '></et2-number>';
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}, $str);
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// replace just description, as they often contain >, like label="> %s"
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$str = preg_replace('#<description\s*/>#', '<et2-description></et2-description>', $str);
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$str = preg_replace('#<description\s(.*?")\s*/>#s', '<et2-description $1></et2-description>', $str);
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// modify <(vfs-mime|link-string|link-list) --> <et2-*
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$str = preg_replace_callback(ADD_ET2_PREFIX_LEGACY_REGEXP, static function (array $matches) {
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return '<' . $matches[2] . 'et2-' . $matches[3] .
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// web-components must not be self-closing (no "<et2-button .../>", but "<et2-button ...></et2-button>")
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(substr($matches[ADD_ET2_PREFIX_LEGACY_LAST_GROUP], -1) === '/' ? substr($matches[ADD_ET2_PREFIX_LEGACY_LAST_GROUP], 0, -1) .
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'></et2-' . $matches[3] : $matches[ADD_ET2_PREFIX_LEGACY_LAST_GROUP]) . '>';
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}, $str);
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// change link attribute only_app to et2-link attribute app and map r/o link-entry to link
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$str = preg_replace_callback('#<et2-link(-[a-z]+)?([^>]*?)></et2-link(-[a-z]+)?>#su', static function ($matches)
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{
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$tag = 'et2-link'.$matches[1];
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$attrs = parseAttrs($matches[2]);
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if ($tag === 'et2-link-entry' && !empty($attrs['readonly']) || $tag === 'et2-link')
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{
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$tag = 'et2-link';
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$attrs['app'] = $attrs['app'] ?? $attrs['only_app'];
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unset($attrs['only_app'], $attrs['readonly']);
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}
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return "<$tag" . stringAttrs($attrs) . "></$tag>";
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}, $str);
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// handling of select and taglist widget, incl. removing of type attribute
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$str = preg_replace_callback('#<(select|taglist|listbox)(-[^ ]+)? ([^>]+?)(/|>(.*?)</(select|taglist|listbox))>#s', static function (array $matches)
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{
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$attrs = parseAttrs($matches[3]);
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// set multiple for old tags attribute or taglist without maxSelection="1"
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if (isset($attrs['tags']) || $matches['1'] === 'taglist' && (empty($attrs['maxSelection']) || $attrs['maxSelection'] > 1))
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{
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$attrs['multiple'] = 'true';
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unset($attrs['tags']);
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}
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// converting taglist to et2-select
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if($matches['1'] === 'taglist')
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{
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// taglist had allowFreeEntries and enableEditMode with a default of true, while et2-select has it with a default of false
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if(!$matches[2] && !isset($attrs['allowFreeEntries']) && (empty($matches[5]) || !preg_match('#</?option(\s[^>]+|/)>#', $matches[5])))
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{
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$attrs['allowFreeEntries'] = 'true';
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if(!isset($attrs['editModeEnabled']))
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{
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$attrs['editModeEnabled'] = 'true';
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}
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}
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// only set (default) searchUrl for regular taglist or taglist-email, or if a non-empty autocomplete_url was given
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if (empty($matches['2']) || $matches[2] === '-email' || !empty($attrs['autocomplete_url']))
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{
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$attrs['searchUrl'] = $attrs['autocomplete_url'] ?? 'EGroupware\\Api\\Etemplate\\Widget\\Taglist::'.
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($matches[2] === '-email' ? 'ajax_email' : 'ajax_search');
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if (isset($attrs['autocomplete_params']))
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{
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$attrs['searchOptions'] = $attrs['autocomplete_params'];
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}
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}
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unset($attrs['autocomplete_url'], $attrs['autocomplete_params']);
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if (isset($attrs['maxSelection']) && $attrs['maxSelection'] === '1')
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{
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unset($attrs['multiple'], $attrs['maxSelection']);
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}
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}
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// no multiple="toggle" or expand_multiple_rows="N" currently, thought Shoelace's select multiple="true" is relative close
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// until we find something better, just switch to multiple="true"
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if (isset($attrs['multiple']) && $attrs['multiple'] === 'toggle' || !empty($attrs['expand_multiple_rows']))
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{
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$attrs['multiple'] = 'true';
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unset($attrs['expand_multiple_rows']);
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}
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// <select rows="N" (to show N rows) previously also switched multiple on
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if (!empty($attrs['rows']) && (int)$attrs['rows'] > 1)
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{
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$attrs['multiple'] = true;
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}
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else
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{
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unset($attrs['rows']);
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}
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// automatic convert empty_label for multiple=true to a placeholder
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if (!empty($attrs['empty_label']) && !empty($attrs['multiple']))
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{
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$attrs['placeholder'] = $attrs['empty_label'];
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unset($attrs['empty_label']);
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}
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// type attribute need to go in widget type <select type="select-account" --> <et2-select-account
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if (empty($matches[2]) && isset($attrs['type']))
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{
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$matches[2] = preg_replace('/^(select|taglist)/', '', $attrs['type']);
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unset($attrs['type']);
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}
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return '<et2-select' . $matches[2] . stringAttrs($attrs) . '>'.$matches[5].'</et2-select' . $matches[2] . '>';
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}, $str);
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// nextmatch headers
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$str = preg_replace_callback('#<(nextmatch-)([^ ]+)(header|filter) ([^>]+?)/>#s', static function (array $matches)
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{
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$attrs = parseAttrs($matches[4]);
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if ($matches[2] === 'custom')
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{
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$attrs['widget_type'] = $attrs['type'];
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}
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if(!$matches[2] || in_array($matches[2], ['sort']) || ($matches[2] == "custom" && empty($attrs['widget_type'])))
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{
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return $matches[0];
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}
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// No longer needed & type causes problems
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unset($attrs['type'], $attrs['tags']);
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if($matches[2] === 'taglist')
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{
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$matches[2] = "filter";
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}
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return '<et2-nextmatch-header-' . $matches[2] . stringAttrs($attrs) . '/>';
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}, $str);
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// fix <(button|buttononly|timestamper).../> --> <et2-(button|image|button-timestamp) (noSubmit="true")?.../>
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$str = preg_replace_callback('#<(button|buttononly|timestamper|button-timestamp|dropdown_button)\s(.*?)(/|></(button|buttononly|timestamper|button-timestamp|dropdown_button))>#s', function ($matches) use ($name)
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{
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$tag = 'et2-button';
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$attrs = parseAttrs($matches[2]);
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switch ($matches[1])
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{
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case 'buttononly': // replace buttononly tag with noSubmit="true" attribute
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$attrs['noSubmit'] = 'true';
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break;
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case 'timestamper':
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case 'button-timestamp':
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$tag .= '-timestamp';
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$attrs['background_image'] = 'true';
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break;
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case 'dropdown_button':
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$tag = 'et2-dropdown-button';
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break;
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}
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// novalidation --> noValidation
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if (!empty($attrs['novalidation']) && in_array($attrs['novalidation'], ['true', '1'], true))
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{
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unset($attrs['novalidation']);
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$attrs['noValidation'] = 'true';
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}
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// replace not set background_image attribute with et2-button-icon tag, if not in NM / lists
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if (!empty($attrs['image']) && (empty($attrs['background_image']) || $attrs['background_image'] === 'false') &&
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empty($attrs['label']) && !preg_match('/^(index|list)/', $name))
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{
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$tag = 'et2-button-icon';
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}
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unset($attrs['background_image']);
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return "<$tag" . stringAttrs($attrs) . '></' . $tag . '>';
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}, $str);
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|
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$str = preg_replace('#<time_or_date\s([^>]+)/>#', '<et2-date-time-today $1></et2-date-time-today>', $str);
|
|
$str = preg_replace_callback('#<date(-time[^\s]*|-duration|-since)?\s([^>]+)/>#', static function($matches)
|
|
{
|
|
if ($matches[1] === '-time_today') $matches[1] = '-time-today';
|
|
return "<et2-date$matches[1] $matches[2]></et2-date$matches[1]>";
|
|
}, $str);
|
|
|
|
if ($template === 'mobile')
|
|
{
|
|
// replace tabs in mobile template with details widgets
|
|
$str = preg_replace_callback('#^(\s+)<et2-tabbox\s*([^>]*)>\n\s*<tabs>\n(.*)\n\s*</tabs>\n\s*<tabpanels>\n(.*)\n\s*</tabpanels>\n\s*</et2-tabbox>#ms',
|
|
static function($matches)
|
|
{
|
|
$indent = $matches[1];
|
|
$tabbox_attrs = parseAttrs($matches[2]);
|
|
unset($tabbox_attrs['align_tabs']);
|
|
if (preg_match_all('#<tab\s(.*)/>#', $matches[3], $tabs) !==
|
|
preg_match_all('#<template\s(.*)/>#', $matches[4], $panels))
|
|
{
|
|
throw Exception("Error parsing tabbox for mobile template into details");
|
|
}
|
|
$details = [];
|
|
foreach($tabs[1] as $n => $tab)
|
|
{
|
|
$tab_attrs = parseAttrs($tab);
|
|
$tab_attrs['id'] = $tab_attrs['id'] ?? $tabbox_attrs['id'].$n;
|
|
$tab_attrs['summary'] = $tab_attrs['label'];
|
|
$tab_attrs['title'] = $tab_attrs['statustext'];
|
|
unset($tab_attrs['label'], $tab_attrs['statustext']);
|
|
$details[] = $indent."\t".'<et2-details'.stringAttrs($tab_attrs).'>'."\n$indent\t\t".$panels[0][$n]."\n$indent\t</et2-details>";
|
|
}
|
|
return $indent.'<vbox'.stringAttrs($tabbox_attrs).">\n".implode("\n", $details)."\n$indent</vbox>";
|
|
}, $str);
|
|
}
|
|
|
|
// ^^^^^^^^^^^^^^^^ above widgets get transformed independent of legacy="true" set in overlay ^^^^^^^^^^^^^^^^^^
|
|
|
|
// eTemplate marked as legacy --> replace only some widgets (eg. requiring jQueryUI) with web-components
|
|
if (!preg_match('/<overlay[^>]* legacy="true"/', $str))
|
|
{
|
|
$str = preg_replace_callback(ADD_ET2_PREFIX_REGEXP, static function (array $matches) {
|
|
return '<' . $matches[2] . 'et2-' . $matches[3] .
|
|
// web-components must not be self-closing (no "<et2-button .../>", but "<et2-button ...></et2-button>")
|
|
(substr($matches[ADD_ET2_PREFIX_LAST_GROUP], -1) === '/' ? substr($matches[ADD_ET2_PREFIX_LAST_GROUP], 0, -1) .
|
|
'></et2-' . $matches[3] : $matches[ADD_ET2_PREFIX_LAST_GROUP]) . '>';
|
|
}, $str);
|
|
}
|
|
|
|
// change all attribute-names of new et2-* widgets to camelCase, and other attribute modifications for all web-components
|
|
$str = preg_replace_callback('#<(et2|records)-([a-z-]+)\s(.*?")\s*/?>#s', static function(array $matches)
|
|
{
|
|
$attrs = parseAttrs($matches[3]);
|
|
|
|
// fix deprecated attributes: needed, blur, ...
|
|
static $deprecated = [
|
|
'needed' => 'required',
|
|
'blur' => 'placeholder',
|
|
];
|
|
foreach($attrs as $name => $value)
|
|
{
|
|
if (isset($deprecated[$name]))
|
|
{
|
|
unset($attrs[$name]);
|
|
$attrs[$name = $deprecated[$name]] = $value;
|
|
}
|
|
if (count($parts = preg_split('/[_-]/', $name)) > 1)
|
|
{
|
|
if ($name === 'parent_node') $parts[1] = 'Id'; // we can not use DOM property parentNode --> parentId
|
|
$attrs[array_shift($parts).implode('', array_map('ucfirst', $parts))] = $value;
|
|
unset($attrs[$name]);
|
|
}
|
|
}
|
|
|
|
// remove no longer necessary et2_fullWidth class, it's the default now anyway
|
|
if (isset($attrs['class']) && empty($attrs['class'] = trim(preg_replace('/(^| )et2_fullWidth( |$)/', ' ', $attrs['class']))))
|
|
{
|
|
unset($attrs['class']);
|
|
}
|
|
|
|
// Drop all (old) size attributes of input like fields, if it's not shoelace size format: small, medium or large
|
|
if (preg_match('/^<et2-(textbox|number|int|float|password|url|vfs-|input)/', $matches[0]) &&
|
|
isset($attrs['size']) && !in_array($attrs['size'], ['small', 'medium', 'large']))
|
|
{
|
|
unset($attrs['size']);
|
|
}
|
|
|
|
return str_replace($matches[3], stringAttrs($attrs).(substr($matches[3], -1) === '/' ? '/' : ''), $matches[0]);
|
|
}, $str);
|
|
|
|
$processing = microtime(true);
|
|
|
|
if (isset($cache) && (file_exists($cache_dir = dirname($cache)) || mkdir($cache_dir, 0755, true) || is_dir($cache_dir)))
|
|
{
|
|
file_put_contents($cache, $str);
|
|
}
|
|
}
|
|
// stop here for not existing file or path-traversal for both file and cache here
|
|
if(empty($str) || strpos($path, '..') !== false)
|
|
{
|
|
if (PHP_SAPI === 'cli')
|
|
{
|
|
usage("Path '$path' NOT found!");
|
|
}
|
|
else
|
|
{
|
|
http_response_code(404);
|
|
}
|
|
exit;
|
|
}
|
|
|
|
// remove old CSV Id
|
|
$str = trim(str_replace("<!-- \$Id$ -->\n", '', $str))."\n";
|
|
|
|
// replace DTD
|
|
$str = preg_replace('/^<!DOCTYPE.*>$/m',
|
|
'<!DOCTYPE overlay PUBLIC "-//EGroupware GmbH//eTemplate 2.0//EN" "https://www.egroupware.org/etemplate2.0.dtd">', $str);
|
|
|
|
// cli just echos or updates the file
|
|
if (PHP_SAPI === 'cli')
|
|
{
|
|
if (!$in_place)
|
|
{
|
|
echo $str;
|
|
}
|
|
elseif (!is_writable($path) ||
|
|
!rename($path, dirname($path).'/'.basename($path, '.xet').'.old.xet') ||
|
|
file_put_contents($path, $str) !== strlen($str))
|
|
{
|
|
error_log("Error writing file '$path'!\n");
|
|
}
|
|
exit;
|
|
}
|
|
|
|
// headers to allow caching, egw_framework specifies etag on url to force reload, even with Expires header
|
|
Api\Session::cache_control(86400); // cache for one day
|
|
$etag = '"' . md5($str) . '"';
|
|
Header('ETag: ' . $etag);
|
|
|
|
// if servers send a If-None-Match header, response with 304 Not Modified, if etag matches
|
|
if(isset($_SERVER['HTTP_IF_NONE_MATCH']) && $_SERVER['HTTP_IF_NONE_MATCH'] === $etag)
|
|
{
|
|
header("HTTP/1.1 304 Not Modified");
|
|
exit;
|
|
}
|
|
|
|
// we run our own gzip compression, to set a correct Content-Length of the encoded content
|
|
if(function_exists('gzencode') && in_array('gzip', explode(',', $_SERVER['HTTP_ACCEPT_ENCODING']), true))
|
|
{
|
|
$gzip_start = microtime(true);
|
|
$str = gzencode($str);
|
|
header('Content-Encoding: gzip');
|
|
$gziping = microtime(true) - $gzip_start;
|
|
}
|
|
header('X-Timing: header-include=' . number_format($header_include - $GLOBALS['start'], 3) .
|
|
(empty($processing) ? ', cache-read=' . number_format($cache_read - $header_include, 3) :
|
|
', processing=' . number_format($processing - $header_include, 3)) .
|
|
(!empty($gziping) ? ', gziping=' . number_format($gziping, 3) : '') .
|
|
', total=' . number_format(microtime(true) - $GLOBALS['start'], 3)
|
|
);
|
|
|
|
// Content-Length header is important, otherwise browsers dont cache!
|
|
Header('Content-Length: ' . bytes($str));
|
|
echo $str;
|
|
|
|
exit; // stop further processing eg. redirect to login
|
|
}
|
|
|
|
/**
|
|
* Parse attributes in an array
|
|
*
|
|
* @param string $str
|
|
* @return array
|
|
*/
|
|
function parseAttrs($str)
|
|
{
|
|
if (empty($str) || !trim($str))
|
|
{
|
|
return [];
|
|
}
|
|
if (!preg_match_all('/(^|\s)([a-z\d_-]+)="([^"]*)"/i', $str, $attrs, PREG_PATTERN_ORDER))
|
|
{
|
|
throw new Exception("Can NOT parse attributes from '$str'");
|
|
}
|
|
return array_combine($attrs[2], $attrs[3]);
|
|
}
|
|
|
|
/**
|
|
* Combine attribute array into a string
|
|
*
|
|
* If there are attributes the returned string is prefixed with a single space, otherwise an empty string is returned.
|
|
*
|
|
* @param array $attrs
|
|
* @return string
|
|
*/
|
|
function stringAttrs(array $attrs)
|
|
{
|
|
if (!$attrs)
|
|
{
|
|
return '';
|
|
}
|
|
return ' '.implode(' ', array_map(static function ($name, $value) {
|
|
return $name . '="' . $value . '"';
|
|
}, array_keys($attrs), $attrs));
|
|
} |