File modules/cms/action/file/FileShowAction.class.php

Last commit: Sat Mar 19 00:09:47 2022 +0100	dankert	Refactoring: Outputs are setting their content-type themself.


     1 <?php
     2 namespace cms\action\file;
     3 use cms\action\FileAction;
     4 use cms\action\Method;
     5 use cms\base\Configuration;
     6 use cms\generator\FileContext;
     7 use cms\generator\FileGenerator;
     8 use cms\generator\FileHistoryContext;
     9 use cms\generator\FileHistoryGenerator;
    10 use cms\generator\Producer;
    11 use cms\model\File;
    12 use cms\model\Value;
    13 use util\exception\SecurityException;
    14 
    15 
    16 class FileShowAction extends FileAction implements Method {
    17 
    18     public function view() {
    19 
    20 		$valueId = $this->request->getNumber('valueid');
    21 
    22 		if   ( $valueId ) {
    23 			$value = new Value();
    24 			$value->loadWithId( $valueId );
    25 			if   ( $value->contentid != $this->file->contentid )
    26 				throw new SecurityException('Content-Id does not match');
    27 
    28 			$fileHistoryContext = new FileHistoryContext($this->file->objectid, $valueId );
    29 			$generator          = new FileHistoryGenerator( $fileHistoryContext );
    30 		} else {
    31 			$fileContext = new FileContext($this->file->objectid, Producer::SCHEME_PREVIEW );
    32 			$generator   = new FileGenerator( $fileContext );
    33 		}
    34 
    35 
    36 		$this->lastModified( $this->file->lastchangeDate );
    37 
    38 		if	( $this->file->extension == 'gz' )
    39 		{
    40 			$pos = strrpos($this->file->filename,'.');
    41 			if	( $pos === false )
    42 				$ext = '';
    43 			else
    44 				$ext = substr($this->file->filename,$pos+1);
    45 
    46 			$ext = strtolower($ext);
    47 
    48 			$mime_type = File::$MIME_TYPES[$ext];
    49 
    50 			$this->setContentType( $mime_type );
    51 			$this->addHeader('Content-Encoding','gzip' );
    52 		}
    53 		else
    54 		{
    55 			// Angabe Content-Type
    56 			$this->setContentType($generator->getMimeType() );
    57 		}
    58 
    59 		// Image should be displayed inline.
    60 		// Filename is used if the user agent is saving the file.
    61 		$this->addHeader('Content-Disposition'      ,'inline; filename='.$this->file->filename() );
    62 		$this->addHeader('Content-Transfer-Encoding','binary' );
    63 		$this->addHeader('Content-Description'      ,$this->file->filename() );
    64 
    65 
    66 		// Groesse des Bildes in Bytes
    67 		// Der Browser hat so die Moeglichkeit, einen Fortschrittsbalken zu zeigen
    68 		$this->addHeader('Content-Length',$this->file->size );
    69 
    70 
    71 		if	( $this->request->getAlphanum('encoding') == 'base64')
    72 		{
    73 		    $encodingFunction = function($value) {
    74 		        return base64_encode($value);
    75             };
    76 			$this->setTemplateVar('encoding', 'base64');
    77 		}
    78 		else {
    79             $encodingFunction = function($value) {
    80                 return $value;
    81             };
    82             $this->setTemplateVar('encoding', 'none');
    83         }
    84 
    85 
    86 		// Unterscheidung, ob PHP-Code in der Datei ausgefuehrt werden soll.
    87 		$publishConfig = Configuration::subset('publish');
    88         $phpActive = ( $publishConfig->get('enable_php_in_file_content')=='auto' && $this->file->getRealExtension()=='php') ||
    89             $publishConfig->get('enable_php_in_file_content' )===true;
    90 
    91         if	(  $phpActive ) {
    92 
    93             // PHP-Code ausfuehren
    94             ob_start();
    95             require( $generator->getCache()->load()->getFilename() );
    96             $this->setTemplateVar('value',$encodingFunction(ob_get_contents()) );
    97             ob_end_clean();
    98         }
    99         else
   100             $this->setTemplateVar('value',$encodingFunction( $generator->getCache()->get() ) );
   101         // Maybe we want some gzip-encoding?
   102     }
   103 
   104 
   105     public function post() {
   106     }
   107 }



Download modules/cms/action/file/FileShowAction.class.php


History
Sat, 19 Mar 2022 00:09:47 +0100	dankert	Refactoring: Outputs are setting their content-type themself.
Sun, 13 Feb 2022 23:35:26 +0100	dankert	Refactoring: New class "Response" which stores all output information.
Mon, 6 Dec 2021 01:00:00 +0100	dankert	New: Show a version from file history; New: Text history.
Sun, 5 Dec 2021 20:33:24 +0100	dankert	Cleanup: Removed unusable properties from class 'Value' and 'BaseObject'.
Thu, 4 Mar 2021 03:39:25 +0100	Jan Dankert	New: Separate edit action for images and texts.
Fri, 26 Feb 2021 01:06:01 +0100	Jan Dankert	Refactoring accessing the request parameter values.
Tue, 17 Nov 2020 23:51:00 +0100	Jan Dankert	Refactoring: Every Actionmethod has now its own class.