| Current File : //opt/RZphp74/includes/HTML/Progress2/Upload.php |
<?php
/**
* Copyright (c) 2005-2008, Laurent Laville <pear@laurent-laville.org>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the authors nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* PHP versions 4 and 5
*
* @category HTML
* @package HTML_Progress2
* @author Laurent Laville <pear@laurent-laville.org>
* @copyright 2007-2008 Laurent Laville
* @license http://www.opensource.org/licenses/bsd-license.php New BSD License
* @version CVS: $Id$
* @link http://pear.php.net/package/HTML_Progress2
* @since File available since Release 2.3.0RC1
*/
/**
* Backend for AJAX uploading bar.
*
* @category HTML
* @package HTML_Progress2
* @author Laurent Laville <pear@laurent-laville.org>
* @copyright 2007-2008 Laurent Laville
* @license http://www.opensource.org/licenses/bsd-license.php New BSD License
* @version Release: @package_version@
* @link http://pear.php.net/package/HTML_Progress2
* @since Class available since Release 2.3.0RC1
*/
class HTML_Progress2_Upload
{
/**
* Backend identifier are either :
* 'none' - if nothing else below match
* 'apc5' - APC php extension with PHP5.2.0 or greater
* 'upm5' - upload progress meter php extension with PHP5.2.0 or greater
*
* @var string
* @since 2.3.0RC1
* @access public
*/
var $backend;
/**
* Formatted strings for Progress bar labels that will display upload info.
*
* Each conversion specification consists of a percent sign (%), followed
* by one or more of these elements.
* T - for display total file size
* C - for display current file size uploaded
* P - for display percentage of file size uploaded
* F - for display file name to upload
* E - for estimate time left
* S - for speed limit
*
* @var string
* @since 2.3.0RC1
* @access public
* @see HTML_Progress2_Upload::sprintf()
*/
var $format;
/**
* Constructor (ZE2) Summary
*
* @param string $format (optional) conversion specifications
* for all progress bar labels
*
* @since version 2.3.0RC1 (2007-02-12)
* @access protected
* @link http://pdoru.from.ro/upload-progress-meter/ Patch for PHP 4
*/
function __construct($format = null)
{
$php5 = (version_compare(phpversion(), '5.2.0', 'ge') < 0) ? false : true;
if (extension_loaded('uploadprogress') && $php5) {
$this->backend = 'upm5';
} elseif (extension_loaded('apc') && $php5) {
$this->backend = 'apc5';
} else {
$this->backend = 'none';
}
if (!is_array($format)) {
$format = array('uplStatus' => '%C / %T (%P%)');
}
$this->format = $format;
}
/**
* Return hash of data with current file upload information, depending of
* backend used.
*
* @param string $Id upload identifier
*
* @return bool|array false if info unavailable, hash of data otherwise
* @since version 2.3.0RC1 (2007-02-12)
* @access public
*/
function getInfo($Id)
{
$info = array('time_start' => 0, 'time_last' => 0,
'speed_average' => 0, 'speed_last' => 0,
'est_sec' => -1,
'bytes_uploaded' => 0, 'bytes_total' => 0,
'files_uploaded' => 0,
'cancel_upload' => 0
);
switch ($this->backend) {
case 'upm5':
$tmp = uploadprogress_get_info($Id);
if (is_array($tmp)) {
$info = array_merge($info, $tmp);
$info['current_file'] = $tmp['filename'];
} else {
$info = false;
}
break;
case 'apc5':
$tmp = apc_fetch('upload_' . $Id);
if (is_array($tmp)) {
$info['bytes_uploaded'] = $tmp['current'];
$info['bytes_total'] = $tmp['total'];
$info['files_uploaded'] = $tmp['done'];
$info['current_file'] = $tmp['filename'];
if (isset($tmp['cancel_upload'])) {
$info['cancel_upload'] = $tmp['cancel_upload'];
}
} else {
$info = false;
}
break;
default:
}
return $info;
}
/**
* Return a formatted string with current upload information
*
* Each conversion specification consists of a percent sign (%), followed
* by one or more of these elements.
* T - for display total file size
* C - for display current file size uploaded
* P - for display percentage of file size uploaded
* F - for display file name to upload
* E - for estimate time left
* S - for speed limit
*
* @param string $format conversion specification
* @param array $info current upload information
*
* @return bool|string false on error, formatted string with current info
* @since version 2.3.0RC1 (2007-02-12)
* @access public
*/
function sprintf($format, $info)
{
if (!is_array($info)) {
return false;
}
$pos = strpos($format, '%T');
if ($pos !== false) {
$format = str_replace('%T', $this->formatBytes($info['bytes_total']),
$format);
}
$pos = strpos($format, '%C');
if ($pos !== false) {
$format = str_replace('%C', $this->formatBytes($info['bytes_uploaded']),
$format);
}
$pos = strpos($format, '%P');
if ($pos !== false) {
if ($info['bytes_total'] < 1) {
$percent = 100;
} else {
$percent = round($info['bytes_uploaded'] /
$info['bytes_total'] * 100);
}
$format = str_replace('%P', $percent, $format);
}
$pos = strpos($format, '%F');
if ($pos !== false) {
$format = str_replace('%F', $info['current_file'], $format);
}
$pos = strpos($format, '%E');
if ($pos !== false
&& $info['est_sec'] > 0) {
$eta = sprintf("%02d:%02d",
$info['est_sec'] / 60, $info['est_sec'] % 60);
$format = str_replace('%E', $eta, $format);
}
$pos = strpos($format, '%S');
if ($pos !== false) {
$speed = $this->formatBytes($info['speed_average']);
$format = str_replace('%S', $speed, $format);
}
return $format;
}
/**
* Get the status of an upload passed in
*
* @param string $uplId (optional) upload identifier
*
* @return array
* @since version 2.3.0RC1 (2007-02-12)
* @access public
*/
function getStatus($uplId = null)
{
if (!isset($uplId)) {
$uplId = $_GET['upload_identifier'];
}
$tmp = $this->getInfo($uplId);
if (!is_array($tmp)) {
$ret = array('percentage' => 100, 'labels' => array());
return $ret;
}
$percent = $this->sprintf('%P', $tmp);
$labels = array();
foreach ($this->format as $lbl => $fmt) {
$labels[$lbl] = $this->sprintf($fmt, $tmp);
}
$ret = array('percentage' => $percent, 'labels' => $labels,
'bytes_uploaded' => $tmp['bytes_uploaded'],
'bytes_total' => $tmp['bytes_total']
);
return $ret;
}
/**
* Function to convert bytes to something larger
*
* @param int $x file size in bytes
*
* @return string
* @since version 2.3.0RC1 (2007-02-12)
* @access public
*/
function formatBytes($x)
{
if ($x < 1024) {
return "$x bytes";
} elseif ($x < (1024 * 1024)) {
return sprintf("%d KB", $x/1024);
} else {
return sprintf("%d MB", $x/(1024 * 1024));
}
}
}
?>