Add epub loader resource

2013-09-11 22:51:45 +01:00 · 2013-09-11 22:51:45 +01:00 · 987d73ccb8
commit 987d73ccb8
parent fd774948fb
7 changed files with 1387 additions and 0 deletions
--- a/resources/epub-loader/BaseExport.class.php
+++ b/resources/epub-loader/BaseExport.class.php
@ -0,0 +1,209 @@
+<?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;
+	}
+
+}
+
+?>