cops/resources/epub-loader/BaseExport.class.php

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2013-09-12 00:51:45 +03:00
<?php
/**
* BaseExport class
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Didier Corbière <didier.corbiere@opale-concept.com>
*/
class BaseExport
{
protected $mProperties = null;
protected $mFileName = '';
protected $mSearch = null;
protected $mReplace = null;
public $mFormatProperty = true;
/**
* Open an export file (or create if file does not exist)
*
* @param string Export file name
* @param boolean Force file creation
*/
public function __construct($inFileName, $inCreate = false)
{
if ($inCreate && file_exists($inFileName)) {
if (!unlink($inFileName)) {
$error = sprintf('Cannot remove file: %s', $inFileName);
throw new Exception($error);
}
}
$this->mFileName = $inFileName;
$this->mProperties = array();
}
public function ClearProperties()
{
$this->mProperties = array();
}
public function SetProperty($inKey, $inValue)
{
// Don't store empty keys
if (empty($inKey)) {
return;
}
if ($this->mFormatProperty) {
$inValue = $this->FormatProperty($inValue);
}
$this->mProperties[$inKey] = $inValue;
}
/**
* Format a property
*
* @param string or array of strings to format
* @return string or array of strings formated
*/
protected function FormatProperty($inValue)
{
if (!isset($inValue)) {
return '';
}
if (is_numeric($inValue)) {
return (string)$inValue;
}
if (is_array($inValue)) {
// Recursive call for arrays
foreach ($inValue as $key => $value) {
$inValue[$key] = $this->FormatProperty($value);
}
return $inValue;
}
if (!is_string($inValue) || empty($inValue)) {
return '';
}
// Replace html entities with normal characters
$str = html_entity_decode($inValue, ENT_COMPAT, 'UTF-8');
// Replace characters
if (isset($this->mSearch)) {
$str = str_replace($this->mSearch, $this->mReplace, $str);
}
// Strip double spaces
while (strpos($str, ' ') !== false) {
$str = str_replace(' ', ' ', $str);
}
// Trim
$str = trim($str);
return $str;
}
/**
* Save data to file
*
* @throws Exception if error
*/
public function SaveToFile()
{
// Write the file
$content = $this->GetContent();
if (!file_put_contents($this->mFileName, $content)) {
$error = sprintf('Cannot save export to file: %s', $this->mFileName);
throw new Exception($error);
}
}
/**
* Send download http headers
*
* @param string $inFileName Download file name to display in the browser
* @param int $inFileSize Download file size
* @param string $inCodeSet Charset
* @throws exception if http headers have been already sent
*
* @return void
*/
private function SendDownloadHeaders($inFileName, $inFileSize = null, $inCodeSet = 'utf-8')
{
// Throws excemtion if http headers have been already sent
$filename = '';
$linenum = 0;
if (headers_sent($filename, $linenum)) {
$error = sprintf('Http headers already sent by file: %s ligne %d', $filename, $linenum);
throw new Exception($error);
}
$inFileName = str_replace(' ', '', basename($inFileName)); // Cleanup file name
$ext = strtolower(substr(strrchr($inFileName, '.'), 1));
switch ($ext) {
case 'pdf':
$contentType = 'application/pdf';
break;
case 'zip':
$contentType = 'application/zip';
break;
case 'xml':
$contentType = 'text/xml';
if (!empty($inCodeSet)) {
$contentType .= '; charset=' . $inCodeSet . '"';
}
break;
case 'txt':
$contentType = 'text/plain';
if (!empty($inCodeSet)) {
$contentType .= '; charset=' . $inCodeSet . '"';
}
break;
case 'csv':
$contentType = 'text/csv';
if (!empty($inCodeSet)) {
$contentType .= '; charset=' . $inCodeSet . '"';
}
break;
case 'html':
$contentType = 'text/html';
if (!empty($inCodeSet)) {
$contentType .= '; charset=' . $inCodeSet . '"';
}
break;
default:
$contentType = 'application/force-download';
break;
}
// Send http headers for download
header('Content-disposition: attachment; filename="' . $inFileName . '"');
Header('Content-Type: ' . $contentType);
//header('Content-Transfer-Encoding: binary');
if (isset($inFileSize)) {
header('Content-Length: ' . $inFileSize);
}
// Send http headers to remove the browser cache
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
header('Last-Modified: ' . gmdate("D, d M Y H:i:s") . ' GMT');
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Cache-Control: post-check=0, pre-check=0', false);
header('Pragma: no-cache');
}
/**
* Download export and stop further script execution
*/
public function Download()
{
$content = $this->GetContent();
// Send http download headers
$size = strlen($content);
$this->SendDownloadHeaders($this->mFileName, $size);
// Send file content to download
echo $content;
exit;
}
}
?>