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sources/lib/private/preview/office-cl.php 3.22 KB
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  <?php
  /**
   * Copyright (c) 2013 Georg Ehrke georg@ownCloud.com
   * This file is licensed under the Affero General Public License version 3 or
   * later.
   * See the COPYING-README file.
   */
  namespace OC\Preview;
  
  // office preview is currently not supported on Windows
  if (!\OC_Util::runningOnWindows()) {
  
  	//we need imagick to convert
  	class Office extends Provider {
  
  		private $cmd;
  
  		public function getMimeType() {
  			return null;
  		}
  
  		public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
  			$this->initCmd();
  			if(is_null($this->cmd)) {
  				return false;
  			}
  
  			$absPath = $fileview->toTmpFile($path);
  
  			$tmpDir = get_temp_dir();
  
  			$defaultParameters = ' --headless --nologo --nofirststartwizard --invisible --norestore -convert-to pdf -outdir ';
  			$clParameters = \OCP\Config::getSystemValue('preview_office_cl_parameters', $defaultParameters);
  
  			$exec = $this->cmd . $clParameters . escapeshellarg($tmpDir) . ' ' . escapeshellarg($absPath);
  			$export = 'export HOME=/' . $tmpDir;
  
  			shell_exec($export . "
  " . $exec);
  
  			//create imagick object from pdf
  			try{
  				$pdf = new \imagick($absPath . '.pdf' . '[0]');
  				$pdf->setImageFormat('jpg');
  			} catch (\Exception $e) {
  				unlink($absPath);
  				unlink($absPath . '.pdf');
  				\OC_Log::write('core', $e->getmessage(), \OC_Log::ERROR);
  				return false;
  			}
  
  			$image = new \OC_Image();
  			$image->loadFromData($pdf);
  
  			unlink($absPath);
  			unlink($absPath . '.pdf');
  
  			return $image->valid() ? $image : false;
  		}
  
  		private function initCmd() {
  			$cmd = '';
  
  			if(is_string(\OC_Config::getValue('preview_libreoffice_path', null))) {
  				$cmd = \OC_Config::getValue('preview_libreoffice_path', null);
  			}
6d9380f96   Cédric Dupont   Update sources OC... 
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  			$whichLibreOffice = shell_exec('command -v libreoffice');
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  			if($cmd === '' && !empty($whichLibreOffice)) {
  				$cmd = 'libreoffice';
  			}
6d9380f96   Cédric Dupont   Update sources OC... 
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  			$whichOpenOffice = shell_exec('command -v openoffice');
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  			if($cmd === '' && !empty($whichOpenOffice)) {
  				$cmd = 'openoffice';
  			}
  
  			if($cmd === '') {
  				$cmd = null;
  			}
  
  			$this->cmd = $cmd;
  		}
  	}
  
  	//.doc, .dot
  	class MSOfficeDoc extends Office {
  
  		public function getMimeType() {
  			return '/application\/msword/';
  		}
  
  	}
  
  	\OC\Preview::registerProvider('OC\Preview\MSOfficeDoc');
  
  	//.docm, .dotm, .xls(m), .xlt(m), .xla(m), .ppt(m), .pot(m), .pps(m), .ppa(m)
  	class MSOffice2003 extends Office {
  
  		public function getMimeType() {
  			return '/application\/vnd.ms-.*/';
  		}
  
  	}
  
  	\OC\Preview::registerProvider('OC\Preview\MSOffice2003');
  
  	//.docx, .dotx, .xlsx, .xltx, .pptx, .potx, .ppsx
  	class MSOffice2007 extends Office {
  
  		public function getMimeType() {
  			return '/application\/vnd.openxmlformats-officedocument.*/';
  		}
  
  	}
  
  	\OC\Preview::registerProvider('OC\Preview\MSOffice2007');
  
  	//.odt, .ott, .oth, .odm, .odg, .otg, .odp, .otp, .ods, .ots, .odc, .odf, .odb, .odi, .oxt
  	class OpenDocument extends Office {
  
  		public function getMimeType() {
  			return '/application\/vnd.oasis.opendocument.*/';
  		}
  
  	}
  
  	\OC\Preview::registerProvider('OC\Preview\OpenDocument');
  
  	//.sxw, .stw, .sxc, .stc, .sxd, .std, .sxi, .sti, .sxg, .sxm
  	class StarOffice extends Office {
  
  		public function getMimeType() {
  			return '/application\/vnd.sun.xml.*/';
  		}
  
  	}
  
  	\OC\Preview::registerProvider('OC\Preview\StarOffice');
  }