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https://github.com/EGroupware/egroupware.git
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b2e032245a
- Implement server side callback function when file is uploaded - Send needed file info back to client instead of storing in session
130 lines
4.1 KiB
PHP
130 lines
4.1 KiB
PHP
<?php
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/**
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* EGroupware - eTemplate serverside file upload widget
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage api
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* @link http://www.egroupware.org
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* @author Nathan Gray
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* @copyright 2011 Nathan Gray
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* @version $Id$
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*/
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/**
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* eTemplate file upload widget
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* Uses AJAX to send file(s) to server, and stores for submit
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*/
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class etemplate_widget_file extends etemplate_widget
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{
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public function __construct($xml='') {
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if($xml) parent::__construct($xml);
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}
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/**
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* Ajax callback to receive an incoming file
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*
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* The incoming file is moved from its temporary location (otherwise server will delete it) and
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* the file information is stored into the widget's value. When the form is submitted, the information for all
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* files uploaded is available in the returned $content array. Because files are uploaded asynchronously,
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* submission should be quick.
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*
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* @note Currently, no attempt is made to clean up files automatically.
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*/
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public static function ajax_upload() {
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$response = egw_json_response::get();
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$request_id = str_replace(' ', '+', rawurldecode($_REQUEST['request_id']));
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$widget_id = $_REQUEST['widget_id'];
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if(!self::$request = etemplate_request::read($request_id)) {
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$response->error("Could not read session");
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return;
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}
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if (!($template = etemplate_widget_template::instance(self::$request->template['name'], self::$request->template['template_set'],
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self::$request->template['version'], self::$request->template['load_via'])))
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{
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// Can't use callback
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error_log("Could not get template for file upload, callback skipped");
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}
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$file_data = array();
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foreach ($_FILES as $field => &$file) {
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if ($file['error'] == UPLOAD_ERR_OK && trim($file['name']) != '' && $file['size'] > 0) {
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if (is_dir($GLOBALS['egw_info']['server']['temp_dir']) && is_writable($GLOBALS['egw_info']['server']['temp_dir']))
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{
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$new_file = tempnam($GLOBALS['egw_info']['server']['temp_dir'],'egw_');
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}
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else
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{
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$new_file = $value['file']['tmp_name'].'+';
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}
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if(move_uploaded_file($file['tmp_name'], $new_file)) {
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$file['tmp_name'] = $new_file;
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// Data to send back to client
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$temp_name = basename($file['tmp_name']);
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$file_data[$temp_name] = array(
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'name' => $file['name'],
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'type' => $file['type']
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);
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}
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}
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}
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$response->data($file_data);
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// Check for a callback, call it if there is one
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foreach($_FILES as $field => $file) {
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if($element = $template->getElementById($field))
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{
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$callback = $element->attrs['callback'];
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if(!$callback) $callback = $template->getElementAttribute($field, 'callback');
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if($callback)
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{
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ExecMethod($callback, $_FILES[$field]);
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}
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}
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}
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}
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/**
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* Validate input
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* Merge any already uploaded files into the content array
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*
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* @param string $cname current namespace
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* @param array $content
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* @param array &$validated=array() validated content
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*/
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public function validate($cname, array $content, &$validated=array())
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{
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$form_name = self::form_name($cname, $this->id);
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$value = $value_in = self::get_array($content, $form_name);
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$valid =& self::get_array($validated, $form_name, true);
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if(!is_array($value)) $value = array();
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foreach($value as $tmp => $file)
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{
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if (is_dir($GLOBALS['egw_info']['server']['temp_dir']) && is_writable($GLOBALS['egw_info']['server']['temp_dir']))
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{
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$path = $GLOBALS['egw_info']['server']['temp_dir'].'/'.$tmp;
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}
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else
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{
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$path = $tmp.'+';
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}
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$stat = stat($path);
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$valid[] = array(
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'name' => $file['name'],
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'type' => $file['type'],
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'tmp_name' => $path,
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'error' => UPLOAD_ERR_OK, // Always OK if we get this far
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'size' => $stat['size'],
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'ip' => $_SERVER['REMOTE_ADDR'], // Assume it's the same as for when it was uploaded...
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);
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}
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if($valid && !$this->attrs['multiple']) $valid = $valid[0];
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}
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}
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etemplate_widget::registerWidget('etemplate_widget_file', array('file'));
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