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https://github.com/FH-Complete/FHC-Core.git
synced 2026-06-01 12:19:28 +00:00
Neue Klasse fuer Dokumenten Export hinzugefuegt
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oesi
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<?php
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/* Copyright (C) 2015 fhcomplete.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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*
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* Authors: Andreas Oesterreicher <andreas.oesterreicher@technikum-wien.at> and
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*/
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require_once(dirname(__FILE__).'/vorlage.class.php');
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require_once(dirname(__FILE__).'/addon.class.php');
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require_once(dirname(__FILE__).'/studiengang.class.php');
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class dokument_export
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{
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private $content_xsl; // XSL Vorlage fuer content.xml
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private $styles_xsl; // XSL Vorlage fuer styles.xml
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private $xml_data; // XML Daten
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private $vorlage; // Vorlage Objekt
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private $vorlage_file; // Vorlage ODT/ODS in das hineingezippt wird
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private $outputformat; // Datentyp des Ausgabefiles
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private $filename; // Dateiname des Ausgabefiles
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private $temp_filename;
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private $temp_folder;
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private $images=array();
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/**
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* Konstruktor
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*/
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public function __construct($vorlage, $oe_kurzbz=0, $version=null)
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{
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//Vorlage aus der Datenbank holen
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$this->vorlage = new vorlage();
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if(!$this->vorlage->getAktuelleVorlage($oe_kurzbz, $vorlage, $version))
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die('Keine Dokumentenvorlage gefunden');
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$this->content_xsl = new DOMDocument;
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if(!$this->content_xsl->loadXML($this->vorlage->text))
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die('unable to load xsl');
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// Style Vorlage laden falls vorhanden
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if($this->vorlage->style!='')
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{
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$this->styles_xsl = new DOMDocument;
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if(!$this->styles_xsl->loadXML($vorlage->style))
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die('unable to load styles xsl');
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}
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switch($this->vorlage->mimetype)
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{
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case 'application/vnd.oasis.opendocument.text':
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$this->outputformat = 'odt';
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$this->vorlage_file = $this->vorlage->vorlage_kurzbz.'.odt';
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break;
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case 'application/vnd.oasis.opendocument.spreadsheet':
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$this->outputformat = 'ods';
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$this->vorlage_file = $this->vorlage->vorlage_kurzbz.'.ods';
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break;
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default:
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$this->outputformat = 'pdf';
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$this->vorlage_file = $this->vorlage->vorlage_kurzbz.'.odt';
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}
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if($this->vorlage->bezeichnung!='')
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$this->filename = $this->vorlage->bezeichnung;
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else
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$this->filename = $this->vorlage->vorlage_kurzbz;
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}
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/**
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* Laedt die XML Daten fuer die XSL Transformation anhand eines Arrays
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* @param $data Array mit Daten
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* @param $root Bezeichnung des Root Nodes
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* @return boolean true
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*/
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public function addDataArray($data, $root)
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{
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$this->xml_data = new DOMDocument;
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$this->xml_data->loadXML($this->ConvertArrayToXML($data,$root));
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return true;
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}
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/**
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* XML Daten fuer die XSL Transformation
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* @param $xml
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* @return boolean true
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*/
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public function addDataXML($xml)
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{
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$this->xml_data = new DOMDocument;
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$this->xml_data->loadXML($xml);
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return true;
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}
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/**
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* URL zu XML Datei die fuer XSLTransformation verwendet werden soll
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* @param $xml URL zu XML
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* @param $params GET Parameter die an XML URL uebergeben werden
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* @return boolean true
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*/
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public function addDataURL($xml, $params)
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{
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$xml_found = false;
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$addons = new addon();
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foreach($addons->aktive_addons as $addon)
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{
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$xmlfile = DOC_ROOT.'addons/'.$addon.'/rdf/'.$xml;
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if(file_exists($xmlfile))
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{
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$xml_found = true;
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$xml_url = XML_ROOT.'../addons/'.$addon.'/rdf/'.$xml.'?'.$params;
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break;
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}
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}
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if(!$xml_found)
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$xml_url=XML_ROOT.$xml.'?'.$params;
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// Load the XML source
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$this->xml_data = new DOMDocument;
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if(!$this->xml_data->load($xml_url))
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die('unable to load xml: '.$xml_url);
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return true;
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}
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/**
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* Fuegt ein Bild zum Dokument hinzu
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* @param $path Pfad zum Bild im Filesystem
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* @param $name Name des Bildes das es im Dokument haben soll ohne Pfad (zB 1.png)
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* @param $contenttype Contenttype des Bilds (zB image/png)
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*/
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public function addImage($path, $name, $contenttype)
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{
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$this->images[]=array('path'=>$path,'name'=>$name,'contenttype'=>$contenttype);
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}
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/**
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* Erstellt das ODT Dokument inklusive Bilder und konvertiert es ins gewuenschte Format
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* @param $outputformat ODT, PDF, DOC
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* @return true wenn ok
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*/
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public function create($outputformat=null)
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{
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if(!is_null($outputformat))
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$this->outputformat=$outputformat;
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// content.xml erstellen
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$proc = new XSLTProcessor;
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$proc->importStyleSheet($this->content_xsl);
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$contentbuffer = $proc->transformToXml($this->xml_data);
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$this->temp_folder = '/tmp/fhcunoconv-'.uniqid();
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mkdir($this->temp_folder);
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chdir($this->temp_folder);
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file_put_contents('content.xml', $contentbuffer);
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// styles.xml erstellen
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if(!is_null($this->styles_xsl))
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{
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$style_proc = new XSLTProcessor;
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$style_proc->importStyleSheet($this->styles_xsl);
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$stylesbuffer = $style_proc->transformToXml($this->xml_data);
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file_put_contents('styles.xml', $stylesbuffer);
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}
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// Template holen
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$vorlage_found=false;
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$addons = new addon();
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foreach($addons->aktive_addons as $addon)
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{
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$zipfile = DOC_ROOT.'addons/'.$addon.'/system/vorlage_zip/'.$this->vorlage_file;
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if(file_exists($zipfile))
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{
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$vorlage_found=true;
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break;
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}
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}
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if(!$vorlage_found)
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$zipfile = DOC_ROOT.'system/vorlage_zip/'.$this->vorlage_file;
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$tempname_zip = 'out.zip';
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if(!copy($zipfile, $tempname_zip))
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die('copy failed');
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exec("zip $tempname_zip content.xml");
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if(!is_null($this->styles_xsl))
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exec("zip $tempname_zip styles.xml");
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// bilder hinzufuegen
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if(count($this->images)>0)
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{
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// Unterordner fuer die Bilder erstellen
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mkdir('Pictures');
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// Manifest Datei holen
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exec('unzip '.$tempname_zip.' META-INF/manifest.xml');
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// Bild zur Manifest Datei hinzufuegen
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$manifest = file_get_contents('META-INF/manifest.xml');
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$manifest_xml = new DOMDocument;
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if(!$manifest_xml->loadXML($manifest))
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die('Manifest File ungueltig');
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//root-node holen
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$root = $manifest_xml->getElementsByTagName('manifest')->item(0);
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foreach($this->images as $bild)
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{
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copy($bild['path'], 'Pictures/'.$bild['name']);
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//Neues Element unterhalb des Root Nodes anlegen
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$node = $manifest_xml->createElement("manifest:file-entry");
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$node->setAttribute("manifest:full-path",'Pictures/'.$bild['name']);
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$node->setAttribute("manifest:media-type",$bild['contenttype']);
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$root->appendChild($node);
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}
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$out = $manifest_xml->saveXML();
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//geaenderte Manifest Datei speichern und wieder ins Zip packen
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file_put_contents('META-INF/manifest.xml', $out);
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exec('zip '.$tempname_zip.' META-INF/*');
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// Bilder zum ZIP-File hinzufuegen
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exec("zip $tempname_zip Pictures/*");
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}
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clearstatcache();
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switch($this->outputformat)
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{
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case 'pdf':
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$this->temp_filename='out.pdf';
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exec("unoconv -e IsSkipEmptyPages=false --stdout -f pdf $tempname_zip > ".$this->temp_filename, $out, $ret);
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if($ret!=0)
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{
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$this->errormsg = 'Dokumentenkonvertierung ist derzeit nicht möglich. Bitte informieren Sie den Administrator';
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return false;
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}
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break;
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case 'doc':
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$this->temp_filename='out.doc';
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exec("unoconv -e IsSkipEmptyPages=false --stdout -f doc $tempname_zip > ".$this->temp_filename, $out, $ret);
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if($ret!=0)
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{
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$this->errormsg = 'Dokumentenkonvertierung ist derzeit nicht möglich. Bitte informieren Sie den Administrator';
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return false;
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}
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break;
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case 'odt':
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default:
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$this->temp_filename = $tempname_zip;
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}
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return true;
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}
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/**
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* Liefert das Dokument mit den passenden Headern zum Download oder als ReturnValue
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* @param $download wenn true werden Header gesendet und das Dokument ausgeliefert
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* wenn false wird es als Returnwert zurueckgeliefert
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* @return boolean true oder Dokument
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*/
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public function output($download=true)
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{
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$fsize = filesize($this->temp_filename);
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if(!$handle = fopen($this->temp_filename,'r'))
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die('load failed');
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if($download)
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{
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switch($this->outputformat)
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{
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case 'pdf':
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header('Content-type: application/pdf');
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header('Content-Disposition: attachment; filename="'.$this->filename.'.pdf"');
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header('Content-Length: '.$fsize);
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break;
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case 'doc':
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header('Content-type: application/vnd.ms-word');
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header('Content-Disposition: attachment; filename="'.$this->filename.'.doc"');
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header('Content-Length: '.$fsize);
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break;
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case 'odt':
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header('Content-type: application/vnd.oasis.opendocument.text');
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header('Content-Disposition: attachment; filename="'.$this->filename.'.odt"');
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header('Content-Length: '.$fsize);
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break;
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}
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while (!feof($handle))
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{
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echo fread($handle, 8192);
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}
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fclose($handle);
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return true;
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}
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else
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{
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$data = fread($handle, filesize($file));
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fclose($handle);
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return $data;
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}
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}
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/**
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* Loescht die Temporaeren Dateien die angelegt wurden
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* @return boolean true
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*/
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public function close()
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{
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unlink('content.xml');
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if($this->styles_xsl!='')
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unlink('styles.xml');
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unlink('out.zip');
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unlink($this->temp_filename);
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if(count($this->images)>0)
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{
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unlink('META-INF/manifest.xml');
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foreach($this->images as $bild)
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unlink('Pictures/'.$bild['name']);
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rmdir('Pictures');
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rmdir('META-INF');
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}
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rmdir($this->temp_folder);
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return true;
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}
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/**
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* Konvertiert das Array in ein XML
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* @param $data PHP Array mit den Daten
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* @param $rootElement Bezeichnung des XML Wurzelelements
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* @param $xml_data SimpleXMLElement fuer Rekursionsaufloesung
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* @return xml
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*/
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private function ConvertArrayToXML($data, $rootElement=null, $xml_data=null )
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{
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$_xml_data = $xml_data;
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if ($_xml_data === null)
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$_xml_data = new SimpleXMLElement($rootElement !== null ? '<'.$rootElement.' />' : '<root/>');
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foreach( $data as $key => $value )
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{
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if( is_array($value) )
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{
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if( is_numeric($key) )
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{
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$key = 'item'.$key; //dealing with <0/>..<n/> issues
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$this->ConvertArrayToXML($value, null, $_xml_data);
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}
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else
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{
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$subnode = $_xml_data->addChild($key);
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$this->ConvertArrayToXML($value, null, $subnode);
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}
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}
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else
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$_xml_data->addChild("$key",htmlspecialchars("$value"));
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}
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return $_xml_data->asXML();
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}
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}
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?>
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