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path: root/libs/Zend/Validate/File/MimeType.php
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Diffstat (limited to 'libs/Zend/Validate/File/MimeType.php')
-rw-r--r--libs/Zend/Validate/File/MimeType.php392
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diff --git a/libs/Zend/Validate/File/MimeType.php b/libs/Zend/Validate/File/MimeType.php
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--- a/libs/Zend/Validate/File/MimeType.php
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-<?php
-/**
- * Zend Framework
- *
- * LICENSE
- *
- * This source file is subject to the new BSD license that is bundled
- * with this package in the file LICENSE.txt.
- * It is also available through the world-wide-web at this URL:
- * http://framework.zend.com/license/new-bsd
- * If you did not receive a copy of the license and are unable to
- * obtain it through the world-wide-web, please send an email
- * to license@zend.com so we can send you a copy immediately.
- *
- * @category Zend
- * @package Zend_Validate
- * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- * @version $Id: MimeType.php 23775 2011-03-01 17:25:24Z ralph $
- */
-
-/**
- * @see Zend_Validate_Abstract
- */
-// require_once 'Zend/Validate/Abstract.php';
-
-/**
- * Validator for the mime type of a file
- *
- * @category Zend
- * @package Zend_Validate
- * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- */
-class Zend_Validate_File_MimeType extends Zend_Validate_Abstract
-{
- /**#@+
- * @const Error type constants
- */
- const FALSE_TYPE = 'fileMimeTypeFalse';
- const NOT_DETECTED = 'fileMimeTypeNotDetected';
- const NOT_READABLE = 'fileMimeTypeNotReadable';
- /**#@-*/
-
- /**
- * @var array Error message templates
- */
- protected $_messageTemplates = array(
- self::FALSE_TYPE => "File '%value%' has a false mimetype of '%type%'",
- self::NOT_DETECTED => "The mimetype of file '%value%' could not be detected",
- self::NOT_READABLE => "File '%value%' is not readable or does not exist",
- );
-
- /**
- * @var array
- */
- protected $_messageVariables = array(
- 'type' => '_type'
- );
-
- /**
- * @var string
- */
- protected $_type;
-
- /**
- * Mimetypes
- *
- * If null, there is no mimetype
- *
- * @var string|null
- */
- protected $_mimetype;
-
- /**
- * Magicfile to use
- *
- * @var string|null
- */
- protected $_magicfile;
-
- /**
- * Finfo object to use
- *
- * @var resource
- */
- protected $_finfo;
-
- /**
- * If no $_ENV['MAGIC'] is set, try and autodiscover it based on common locations
- * @var array
- */
- protected $_magicFiles = array(
- '/usr/share/misc/magic',
- '/usr/share/misc/magic.mime',
- '/usr/share/misc/magic.mgc',
- '/usr/share/mime/magic',
- '/usr/share/mime/magic.mime',
- '/usr/share/mime/magic.mgc',
- '/usr/share/file/magic',
- '/usr/share/file/magic.mime',
- '/usr/share/file/magic.mgc',
- );
-
- /**
- * Option to allow header check
- *
- * @var boolean
- */
- protected $_headerCheck = false;
-
- /**
- * Sets validator options
- *
- * Mimetype to accept
- *
- * @param string|array $mimetype MimeType
- * @return void
- */
- public function __construct($mimetype)
- {
- if ($mimetype instanceof Zend_Config) {
- $mimetype = $mimetype->toArray();
- } elseif (is_string($mimetype)) {
- $mimetype = explode(',', $mimetype);
- } elseif (!is_array($mimetype)) {
- // require_once 'Zend/Validate/Exception.php';
- throw new Zend_Validate_Exception("Invalid options to validator provided");
- }
-
- if (isset($mimetype['magicfile'])) {
- $this->setMagicFile($mimetype['magicfile']);
- unset($mimetype['magicfile']);
- }
-
- if (isset($mimetype['headerCheck'])) {
- $this->enableHeaderCheck($mimetype['headerCheck']);
- unset($mimetype['headerCheck']);
- }
-
- $this->setMimeType($mimetype);
- }
-
- /**
- * Returns the actual set magicfile
- *
- * @return string
- */
- public function getMagicFile()
- {
- if (null === $this->_magicfile) {
- if (!empty($_ENV['MAGIC'])) {
- $this->setMagicFile($_ENV['MAGIC']);
- } elseif (!(@ini_get("safe_mode") == 'On' || @ini_get("safe_mode") === 1)) {
- // require_once 'Zend/Validate/Exception.php';
- foreach ($this->_magicFiles as $file) {
- // supressing errors which are thrown due to openbase_dir restrictions
- try {
- $this->setMagicFile($file);
- if ($this->_magicfile !== null) {
- break;
- }
- } catch (Zend_Validate_Exception $e) {
- // Intentionally, catch and fall through
- }
- }
- }
-
- if ($this->_magicfile === null) {
- $this->_magicfile = false;
- }
- }
-
- return $this->_magicfile;
- }
-
- /**
- * Sets the magicfile to use
- * if null, the MAGIC constant from php is used
- * if the MAGIC file is errorous, no file will be set
- *
- * @param string $file
- * @throws Zend_Validate_Exception When finfo can not read the magicfile
- * @return Zend_Validate_File_MimeType Provides fluid interface
- */
- public function setMagicFile($file)
- {
- if (empty($file)) {
- $this->_magicfile = null;
- } else if (!(class_exists('finfo', false))) {
- $this->_magicfile = null;
- // require_once 'Zend/Validate/Exception.php';
- throw new Zend_Validate_Exception('Magicfile can not be set. There is no finfo extension installed');
- } else if (!is_file($file) || !is_readable($file)) {
- // require_once 'Zend/Validate/Exception.php';
- throw new Zend_Validate_Exception('The given magicfile can not be read');
- } else {
- $const = defined('FILEINFO_MIME_TYPE') ? FILEINFO_MIME_TYPE : FILEINFO_MIME;
- $this->_finfo = @finfo_open($const, $file);
- if (empty($this->_finfo)) {
- $this->_finfo = null;
- // require_once 'Zend/Validate/Exception.php';
- throw new Zend_Validate_Exception('The given magicfile is not accepted by finfo');
- } else {
- $this->_magicfile = $file;
- }
- }
-
- return $this;
- }
-
- /**
- * Returns the Header Check option
- *
- * @return boolean
- */
- public function getHeaderCheck()
- {
- return $this->_headerCheck;
- }
-
- /**
- * Defines if the http header should be used
- * Note that this is unsave and therefor the default value is false
- *
- * @param boolean $checkHeader
- * @return Zend_Validate_File_MimeType Provides fluid interface
- */
- public function enableHeaderCheck($headerCheck = true)
- {
- $this->_headerCheck = (boolean) $headerCheck;
- return $this;
- }
-
- /**
- * Returns the set mimetypes
- *
- * @param boolean $asArray Returns the values as array, when false an concated string is returned
- * @return string|array
- */
- public function getMimeType($asArray = false)
- {
- $asArray = (bool) $asArray;
- $mimetype = (string) $this->_mimetype;
- if ($asArray) {
- $mimetype = explode(',', $mimetype);
- }
-
- return $mimetype;
- }
-
- /**
- * Sets the mimetypes
- *
- * @param string|array $mimetype The mimetypes to validate
- * @return Zend_Validate_File_Extension Provides a fluent interface
- */
- public function setMimeType($mimetype)
- {
- $this->_mimetype = null;
- $this->addMimeType($mimetype);
- return $this;
- }
-
- /**
- * Adds the mimetypes
- *
- * @param string|array $mimetype The mimetypes to add for validation
- * @return Zend_Validate_File_Extension Provides a fluent interface
- */
- public function addMimeType($mimetype)
- {
- $mimetypes = $this->getMimeType(true);
-
- if (is_string($mimetype)) {
- $mimetype = explode(',', $mimetype);
- } elseif (!is_array($mimetype)) {
- // require_once 'Zend/Validate/Exception.php';
- throw new Zend_Validate_Exception("Invalid options to validator provided");
- }
-
- if (isset($mimetype['magicfile'])) {
- unset($mimetype['magicfile']);
- }
-
- foreach ($mimetype as $content) {
- if (empty($content) || !is_string($content)) {
- continue;
- }
- $mimetypes[] = trim($content);
- }
- $mimetypes = array_unique($mimetypes);
-
- // Sanity check to ensure no empty values
- foreach ($mimetypes as $key => $mt) {
- if (empty($mt)) {
- unset($mimetypes[$key]);
- }
- }
-
- $this->_mimetype = implode(',', $mimetypes);
-
- return $this;
- }
-
- /**
- * Defined by Zend_Validate_Interface
- *
- * Returns true if the mimetype of the file matches the given ones. Also parts
- * of mimetypes can be checked. If you give for example "image" all image
- * mime types will be accepted like "image/gif", "image/jpeg" and so on.
- *
- * @param string $value Real file to check for mimetype
- * @param array $file File data from Zend_File_Transfer
- * @return boolean
- */
- public function isValid($value, $file = null)
- {
- if ($file === null) {
- $file = array(
- 'type' => null,
- 'name' => $value
- );
- }
-
- // Is file readable ?
- // require_once 'Zend/Loader.php';
- if (!Zend_Loader::isReadable($value)) {
- return $this->_throw($file, self::NOT_READABLE);
- }
-
- $mimefile = $this->getMagicFile();
- if (class_exists('finfo', false)) {
- $const = defined('FILEINFO_MIME_TYPE') ? FILEINFO_MIME_TYPE : FILEINFO_MIME;
- if (!empty($mimefile) && empty($this->_finfo)) {
- $this->_finfo = @finfo_open($const, $mimefile);
- }
-
- if (empty($this->_finfo)) {
- $this->_finfo = @finfo_open($const);
- }
-
- $this->_type = null;
- if (!empty($this->_finfo)) {
- $this->_type = finfo_file($this->_finfo, $value);
- }
- }
-
- if (empty($this->_type) &&
- (function_exists('mime_content_type') && ini_get('mime_magic.magicfile'))) {
- $this->_type = mime_content_type($value);
- }
-
- if (empty($this->_type) && $this->_headerCheck) {
- $this->_type = $file['type'];
- }
-
- if (empty($this->_type)) {
- return $this->_throw($file, self::NOT_DETECTED);
- }
-
- $mimetype = $this->getMimeType(true);
- if (in_array($this->_type, $mimetype)) {
- return true;
- }
-
- $types = explode('/', $this->_type);
- $types = array_merge($types, explode('-', $this->_type));
- $types = array_merge($types, explode(';', $this->_type));
- foreach($mimetype as $mime) {
- if (in_array($mime, $types)) {
- return true;
- }
- }
-
- return $this->_throw($file, self::FALSE_TYPE);
- }
-
- /**
- * Throws an error of the given type
- *
- * @param string $file
- * @param string $errorType
- * @return false
- */
- protected function _throw($file, $errorType)
- {
- $this->_value = $file['name'];
- $this->_error($errorType);
- return false;
- }
-}
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