mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-22 16:03:47 +01:00
226 lines
9.4 KiB
PHP
226 lines
9.4 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
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const ADD_ET2_PREFIX_REGEXP = '#<((/?)([vh]?box|textbox|textarea|button|colorpicker|description|url(-email|-phone|-fax)?))(/?|\s[^>]*)>#m';
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const ADD_ET2_PREFIX_LAST_GROUP = 5;
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// switch evtl. set output-compression off, as we cant 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 '../header.inc.php';
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send_template();
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function send_template()
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{
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$header_include = microtime(true);
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// release session, as we don't need it and it blocks parallel requests
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$GLOBALS['egw']->session->commit_session();
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header('Content-Type: application/xml; charset=UTF-8');
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//$path = EGW_SERVER_ROOT.$_SERVER['PATH_INFO'];
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// check for customized template in VFS
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list(, $app, , $template, $name) = explode('/', $_SERVER['PATH_INFO']);
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$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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http_response_code(404);
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exit;
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}
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/* disable caching for now, as you need to delete the cache, once you change ADD_ET2_PREFIX_REGEXP
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$cache = $GLOBALS['egw_info']['server']['temp_dir'].'/egw_cache/eT2-Cache-'.$GLOBALS['egw_info']['server']['install_id'].$_SERVER['PATH_INFO'];
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if (file_exists($cache) && filemtime($cache) > filemtime($path) &&
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($str = file_get_contents($cache)) !== false)
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{
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$cache_read = microtime(true);
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}
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else*/
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if(($str = file_get_contents($path)) !== false &&
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// eTemplate marked as legacy, return unchanged template without web-components / et2-prefix
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!preg_match('/<overlay[^>]* legacy="true"/', $str))
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{
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// fix <menulist...><menupopup type="select-*"/></menulist> --> <select type="select-*" .../>
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$str = preg_replace('#<menulist([^>]*)>[\r\n\s]*<menupopup([^>]+>)[\r\n\s]*</menulist>#', '<select$1$2', $str);
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// fix legacy options, so new client-side has not to deal with them
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$str = preg_replace_callback('#<([^- />]+)(-[^ ]+)?[^>]* (options="([^"]+)")[ />]#', static function($matches)
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{
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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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}
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static $legacy_options = array( // use "ignore" to ignore further comma-sep. values, otherwise they are all in last attribute
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'select' => 'empty_label,ignore',
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'box' => ',cellpadding,cellspacing,keep',
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'hbox' => 'cellpadding,cellspacing,keep',
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'vbox' => 'cellpadding,cellspacing,keep',
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'groupbox' => 'cellpadding,cellspacing,keep',
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'checkbox' => 'selected_value,unselected_value,ro_true,ro_false',
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'radio' => 'set_value,ro_true,ro_false',
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'customfields' => 'sub-type,use-private,field-names',
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'date' => 'data_format,ignore', // Legacy option "mode" was never implemented in et2
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'description' => 'bold-italic,link,activate_links,label_for,link_target,link_popup_size,link_title',
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);
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// prefer more specific type-subtype over just type
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$names = $legacy_options[$matches[1].$matches[2]] ?? $legacy_options[$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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// fix deprecated attributes: needed, blur, ...
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static $deprecated = [
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'needed' => 'required',
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'blur' => 'placeholder',
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];
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$str = preg_replace_callback('#<[^ ]+[^>]* ('.implode('|', array_keys($deprecated)).')="([^"]+)"[ />]#',
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static function($matches) use ($deprecated)
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{
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return str_replace($matches[1].'="', $deprecated[$matches[1]].'="', $matches[0]);
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}, $str);
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// fix <textbox multiline="true" .../> --> <textarea .../> (et2-prefix and self-closing is handled below)
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$str = preg_replace('#<textbox(.*?)\smultiline="true"(.*?)/>#u', '<textarea$1$2/>', $str);
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// fix <(textbox|int(eger)?|float) precision="int(eger)?|float" .../> --> <et2-number precision=...></et2-number>
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$str = preg_replace_callback('#<(textbox|int(eger)?|float|number).*?\s(type="(int(eger)?|float)")?.*?/>#u',
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static function($matches)
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{
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if ($matches[1] === 'textbox' && !in_array($matches[4], ['float', 'int', 'integer'], true))
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{
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return $matches[0]; // regular textbox --> nothing to do
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}
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$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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}, $str);
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// fix <buttononly.../> --> <button type="buttononly".../>
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$str = preg_replace('#<buttononly\s(.*?)/>#u', '<button type="buttononly" $1/>', $str);
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$str = preg_replace_callback(ADD_ET2_PREFIX_REGEXP, static function (array $matches)
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{
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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_LAST_GROUP], -1) === '/' ? substr($matches[ADD_ET2_PREFIX_LAST_GROUP], 0, -1) .
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'></et2-' . $matches[3] : $matches[ADD_ET2_PREFIX_LAST_GROUP]) . '>';
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}, $str);
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// handling of date and partially implemented select widget (no search or tags attribute), incl. removing of type attribute
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$str = preg_replace_callback('#<(select|date)(-[^ ]+)? ([^>]+)/>#', static function (array $matches)
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{
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preg_match_all('/(^| )([a-z0-9_-]+)="([^"]+)"/', $matches[3], $attrs, PREG_PATTERN_ORDER);
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$attrs = array_combine($attrs[2], $attrs[3]);
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// add et2-prefix for <date-* and <select-* without search or tags attribute
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if ($matches[1] === 'date' || $matches[1] === 'select' && !isset($attrs['search']) && !isset($attrs['tags']))
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{
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// type attribute need to go in widget type <select type="select-account" --> <et2-select-account
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if (empty($matches[2]) && isset($attrs['type']))
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{
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$matches[1] = $attrs['type'];
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$matches[3] = str_replace('type="'.$attrs['type'].'"', '', $matches[3]);
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}
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return '<et2-'.$matches[1].$matches[2].' '.$matches[3].'></et2-'.$matches[1].$matches[2].'>';
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}
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return $matches[0];
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}, $str);
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$processing = microtime(true);
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if(isset($cache) && (file_exists($cache_dir = dirname($cache)) || mkdir($cache_dir, 0755, true)))
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{
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file_put_contents($cache, $str);
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}
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}
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// stop here for not existing file path-traversal for both file and cache here
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if(empty($str) || strpos($path, '..') !== false)
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{
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http_response_code(404);
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exit;
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}
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// headers to allow caching, egw_framework specifies etag on url to force reload, even with Expires header
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Api\Session::cache_control(86400); // cache for one day
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$etag = '"' . md5($str) . '"';
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Header('ETag: ' . $etag);
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// if servers send a If-None-Match header, response with 304 Not Modified, if etag matches
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if(isset($_SERVER['HTTP_IF_NONE_MATCH']) && $_SERVER['HTTP_IF_NONE_MATCH'] === $etag)
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{
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header("HTTP/1.1 304 Not Modified");
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exit;
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}
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// we run our own gzip compression, to set a correct Content-Length of the encoded content
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if(function_exists('gzencode') && in_array('gzip', explode(',', $_SERVER['HTTP_ACCEPT_ENCODING']), true))
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{
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$gzip_start = microtime(true);
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$str = gzencode($str);
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header('Content-Encoding: gzip');
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$gziping = microtime(true) - $gzip_start;
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}
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header('X-Timing: header-include=' . number_format($header_include - $GLOBALS['start'], 3) .
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(empty($processing) ? ', cache-read=' . number_format($cache_read - $header_include, 3) :
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', processing=' . number_format($processing - $header_include, 3)) .
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(!empty($gziping) ? ', gziping=' . number_format($gziping, 3) : '') .
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', total=' . number_format(microtime(true) - $GLOBALS['start'], 3)
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);
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// Content-Length header is important, otherwise browsers dont cache!
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Header('Content-Length: ' . bytes($str));
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echo $str;
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exit; // stop further processing eg. redirect to login
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} |