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Path: /data/applications/aps/tikiwiki/7.0-0/standard/htdocs/lib/mime/ [ Home ]
File: mimelib.php
<?php
// (c) Copyright 2002-2011 by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id: mimelib.php 33195 2011-03-02 17:43:40Z changi67 $

//this script may only be included - so its better to die if called directly.
if (strpos($_SERVER["SCRIPT_NAME"],basename(__FILE__)) !== false) {
  header("location: index.php");
  exit;
}

include_once('lib/mime/mimetypes.php');

// returns mimetypes of files
function tiki_get_mime($filename, $fallback = '', $fileRealPath = '') {
	// Check if extension pecl/fileinfo is usable.
	if ( class_exists('fInfo') )	{
		$fInfo = new fInfo( FILEINFO_MIME_TYPE );
		$mime = null;

		if ( ! empty( $fileRealPath ) ) {
                        $mime = $fInfo->file( $fileRealPath );
                } elseif ( file_exists( $filename ) ) {
                        $mime = $fInfo->file( $filename );
                }

		// The documentation tells to do this, but it does not work with a
		// current version of pecl/fileinfo
		//$fInfo->close();
		return $mime;
	}

        if ( function_exists('mime_content_type') ) {
                // notice: this is the better way.
                // Compile php with  --enable-mime-magic  to be able to use this.

                if ( ! empty( $fileRealPath ) ) {
                        return mime_content_type( $fileRealPath );
                } elseif ( file_exists( $filename ) ) {
                        return mime_content_type( $filename );
                }
        }

        return tiki_get_mime_from_extension($filename, $fallback);
}

function tiki_get_mime_from_extension($filename, $fallback = '') {
	global $mimetypes;

	if (isset($mimetypes)) {
                $ext = pathinfo($filename);
                $ext = isset($ext['extension']) ? $ext['extension'] : '';
                $mimetype = isset($mimetypes[$ext]) ? $mimetypes[$ext] : '';

                if (!empty($mimetype)) {
                        return $mimetype;
                }
        }

        if ( $fallback != '' ) {
                return $fallback;
        } else {
                //The "Microsoft Way" - just kidding
                $defaultmime = "application/octet-stream";

                include_once ("lib/mime/mimetypes.php");
                $filesplit = preg_split("/\.+/", $filename, -1, PREG_SPLIT_NO_EMPTY);
                $ext = $filesplit[count($filesplit) - 1];

                if (isset($mimetypes[$ext])) {
                        return $mimetypes[$ext];
                } else {
                        return $defaultmime;
                }
        }
}

// try to get mime type from data
function tiki_get_mime_from_content($content, $fallback = '', $filename = '') {
	// Check if extension pecl/fileinfo is usable.
	if ( class_exists('fInfo') )	{
		$fInfo = new fInfo( FILEINFO_MIME_TYPE );
		$mime = $fInfo->buffer( $content );
		// The documentation tells to do this, but it does not work with a
		// current version of pecl/fileinfo
		//$fInfo->close();
		return $mime;
	}

	return tiki_get_mime_from_extension($filename, $fallback);
}

//returns "image" from image/jpeg
function tiki_get_mime_main($filename) {
	$filesplit = preg_split("#/+#", tiki_get_mime($filename));

	return $filesplit["0"];
}

//returns "jpeg" from image/jpeg
function tiki_get_mime_sub($filename) {
	$filesplit = preg_split("#/+#", tiki_get_mime($filename));

	return $filesplit["1"];
}