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1 <?php
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2
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3 /*
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4 * This file is part of the Symfony package.
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5 *
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6 * (c) Fabien Potencier <fabien@symfony.com>
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7 *
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8 * For the full copyright and license information, please view the LICENSE
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9 * file that was distributed with this source code.
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10 */
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11
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12 namespace Symfony\Component\HttpFoundation\File;
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13
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14 use Symfony\Component\HttpFoundation\File\Exception\FileException;
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15 use Symfony\Component\HttpFoundation\File\Exception\FileNotFoundException;
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16 use Symfony\Component\HttpFoundation\File\MimeType\ExtensionGuesser;
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17 use Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesser;
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18
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19 /**
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20 * A file in the file system.
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21 *
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22 * @author Bernhard Schussek <bschussek@gmail.com>
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23 */
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24 class File extends \SplFileInfo
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25 {
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26 /**
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27 * Constructs a new file from the given path.
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28 *
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29 * @param string $path The path to the file
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30 * @param bool $checkPath Whether to check the path or not
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31 *
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32 * @throws FileNotFoundException If the given path is not a file
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33 */
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34 public function __construct($path, $checkPath = true)
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35 {
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36 if ($checkPath && !is_file($path)) {
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37 throw new FileNotFoundException($path);
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38 }
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39
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40 parent::__construct($path);
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41 }
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42
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43 /**
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44 * Returns the extension based on the mime type.
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45 *
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46 * If the mime type is unknown, returns null.
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47 *
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48 * This method uses the mime type as guessed by getMimeType()
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49 * to guess the file extension.
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50 *
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51 * @return string|null The guessed extension or null if it cannot be guessed
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52 *
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53 * @see ExtensionGuesser
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54 * @see getMimeType()
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55 */
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56 public function guessExtension()
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57 {
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58 $type = $this->getMimeType();
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59 $guesser = ExtensionGuesser::getInstance();
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60
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61 return $guesser->guess($type);
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62 }
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63
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64 /**
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65 * Returns the mime type of the file.
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66 *
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67 * The mime type is guessed using a MimeTypeGuesser instance, which uses finfo(),
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68 * mime_content_type() and the system binary "file" (in this order), depending on
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69 * which of those are available.
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70 *
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71 * @return string|null The guessed mime type (e.g. "application/pdf")
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72 *
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73 * @see MimeTypeGuesser
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74 */
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75 public function getMimeType()
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76 {
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77 $guesser = MimeTypeGuesser::getInstance();
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78
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79 return $guesser->guess($this->getPathname());
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80 }
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81
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82 /**
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83 * Moves the file to a new location.
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84 *
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85 * @param string $directory The destination folder
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86 * @param string $name The new file name
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87 *
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88 * @return self A File object representing the new file
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89 *
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90 * @throws FileException if the target file could not be created
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91 */
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92 public function move($directory, $name = null)
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93 {
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94 $target = $this->getTargetFile($directory, $name);
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95
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96 set_error_handler(function ($type, $msg) use (&$error) { $error = $msg; });
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97 $renamed = rename($this->getPathname(), $target);
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98 restore_error_handler();
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99 if (!$renamed) {
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100 throw new FileException(sprintf('Could not move the file "%s" to "%s" (%s)', $this->getPathname(), $target, strip_tags($error)));
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101 }
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102
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103 @chmod($target, 0666 & ~umask());
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104
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105 return $target;
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106 }
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107
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108 protected function getTargetFile($directory, $name = null)
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109 {
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110 if (!is_dir($directory)) {
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111 if (false === @mkdir($directory, 0777, true) && !is_dir($directory)) {
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112 throw new FileException(sprintf('Unable to create the "%s" directory', $directory));
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113 }
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114 } elseif (!is_writable($directory)) {
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115 throw new FileException(sprintf('Unable to write in the "%s" directory', $directory));
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116 }
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117
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118 $target = rtrim($directory, '/\\').\DIRECTORY_SEPARATOR.(null === $name ? $this->getBasename() : $this->getName($name));
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119
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120 return new self($target, false);
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121 }
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122
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123 /**
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124 * Returns locale independent base name of the given path.
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125 *
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126 * @param string $name The new file name
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127 *
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128 * @return string containing
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129 */
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130 protected function getName($name)
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131 {
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132 $originalName = str_replace('\\', '/', $name);
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133 $pos = strrpos($originalName, '/');
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134 $originalName = false === $pos ? $originalName : substr($originalName, $pos + 1);
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135
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136 return $originalName;
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137 }
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138 }
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