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1 | <?php |
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2 | /** |
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3 | * File without associated database record. |
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4 | * |
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5 | * This program is free software; you can redistribute it and/or modify |
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6 | * it under the terms of the GNU General Public License as published by |
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7 | * the Free Software Foundation; either version 2 of the License, or |
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8 | * (at your option) any later version. |
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9 | * |
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10 | * This program is distributed in the hope that it will be useful, |
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 | * GNU General Public License for more details. |
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14 | * |
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15 | * You should have received a copy of the GNU General Public License along |
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16 | * with this program; if not, write to the Free Software Foundation, Inc., |
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17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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18 | * http://www.gnu.org/copyleft/gpl.html |
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19 | * |
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20 | * @file |
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21 | * @ingroup FileAbstraction |
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22 | */ |
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23 | |||
24 | /** |
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25 | * A file object referring to either a standalone local file, or a file in a |
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26 | * local repository with no database, for example an FileRepo repository. |
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27 | * |
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28 | * Read-only. |
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29 | * |
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30 | * @todo Currently it doesn't really work in the repository role, there are |
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31 | * lots of functions missing. It is used by the WebStore extension in the |
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32 | * standalone role. |
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33 | * |
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34 | * @ingroup FileAbstraction |
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35 | */ |
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36 | class UnregisteredLocalFile extends File { |
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37 | /** @var Title */ |
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38 | protected $title; |
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39 | |||
40 | /** @var string */ |
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41 | protected $path; |
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42 | |||
43 | /** @var bool|string */ |
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44 | protected $mime; |
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45 | |||
46 | /** @var array Dimension data */ |
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47 | protected $dims; |
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48 | |||
49 | /** @var bool|string Handler-specific metadata which will be saved in the img_metadata field */ |
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50 | protected $metadata; |
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51 | |||
52 | /** @var MediaHandler */ |
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53 | public $handler; |
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54 | |||
55 | /** |
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56 | * @param string $path Storage path |
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57 | * @param string $mime |
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58 | * @return UnregisteredLocalFile |
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59 | */ |
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60 | static function newFromPath( $path, $mime ) { |
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61 | return new self( false, false, $path, $mime ); |
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62 | } |
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63 | |||
64 | /** |
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65 | * @param Title $title |
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66 | * @param FileRepo $repo |
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67 | * @return UnregisteredLocalFile |
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68 | */ |
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69 | static function newFromTitle( $title, $repo ) { |
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70 | return new self( $title, $repo, false, false ); |
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71 | } |
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72 | |||
73 | /** |
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74 | * Create an UnregisteredLocalFile based on a path or a (title,repo) pair. |
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75 | * A FileRepo object is not required here, unlike most other File classes. |
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76 | * |
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77 | * @throws MWException |
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78 | * @param Title|bool $title |
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79 | * @param FileRepo|bool $repo |
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80 | * @param string|bool $path |
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81 | * @param string|bool $mime |
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82 | */ |
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83 | function __construct( $title = false, $repo = false, $path = false, $mime = false ) { |
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84 | if ( !( $title && $repo ) && !$path ) { |
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85 | throw new MWException( __METHOD__ . |
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86 | ': not enough parameters, must specify title and repo, or a full path' ); |
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87 | } |
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88 | if ( $title instanceof Title ) { |
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89 | $this->title = File::normalizeTitle( $title, 'exception' ); |
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90 | $this->name = $repo->getNameFromTitle( $title ); |
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91 | } else { |
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92 | $this->name = basename( $path ); |
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93 | $this->title = File::normalizeTitle( $this->name, 'exception' ); |
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94 | } |
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95 | $this->repo = $repo; |
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96 | if ( $path ) { |
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97 | $this->path = $path; |
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98 | } else { |
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99 | $this->assertRepoDefined(); |
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100 | $this->path = $repo->getRootDirectory() . '/' . |
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101 | $repo->getHashPath( $this->name ) . $this->name; |
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102 | } |
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103 | if ( $mime ) { |
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104 | $this->mime = $mime; |
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105 | } |
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106 | $this->dims = []; |
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107 | } |
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108 | |||
109 | /** |
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110 | * @param int $page |
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111 | * @return bool |
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112 | */ |
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113 | private function cachePageDimensions( $page = 1 ) { |
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114 | if ( !isset( $this->dims[$page] ) ) { |
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115 | if ( !$this->getHandler() ) { |
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116 | return false; |
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117 | } |
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118 | $this->dims[$page] = $this->handler->getPageDimensions( $this, $page ); |
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119 | } |
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120 | |||
121 | return $this->dims[$page]; |
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122 | } |
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123 | |||
124 | /** |
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125 | * @param int $page |
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126 | * @return int |
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127 | */ |
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128 | function getWidth( $page = 1 ) { |
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129 | $dim = $this->cachePageDimensions( $page ); |
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130 | |||
131 | return $dim['width']; |
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132 | } |
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133 | |||
134 | /** |
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135 | * @param int $page |
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136 | * @return int |
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137 | */ |
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138 | function getHeight( $page = 1 ) { |
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139 | $dim = $this->cachePageDimensions( $page ); |
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140 | |||
141 | return $dim['height']; |
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142 | } |
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143 | |||
144 | /** |
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145 | * @return bool|string |
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146 | */ |
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147 | function getMimeType() { |
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148 | if ( !isset( $this->mime ) ) { |
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149 | $magic = MimeMagic::singleton(); |
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150 | $this->mime = $magic->guessMimeType( $this->getLocalRefPath() ); |
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151 | } |
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152 | |||
153 | return $this->mime; |
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154 | } |
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155 | |||
156 | /** |
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157 | * @param string $filename |
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158 | * @return array|bool |
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159 | */ |
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160 | function getImageSize( $filename ) { |
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161 | if ( !$this->getHandler() ) { |
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162 | return false; |
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163 | } |
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164 | |||
165 | return $this->handler->getImageSize( $this, $this->getLocalRefPath() ); |
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166 | } |
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167 | |||
168 | /** |
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169 | * @return int |
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170 | */ |
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171 | function getBitDepth() { |
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172 | $gis = $this->getImageSize( $this->getLocalRefPath() ); |
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173 | |||
174 | if ( !$gis || !isset( $gis['bits'] ) ) { |
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175 | return 0; |
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176 | } |
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177 | return $gis['bits']; |
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178 | } |
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179 | |||
180 | /** |
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181 | * @return bool |
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182 | */ |
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183 | function getMetadata() { |
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184 | if ( !isset( $this->metadata ) ) { |
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185 | if ( !$this->getHandler() ) { |
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186 | $this->metadata = false; |
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187 | } else { |
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188 | $this->metadata = $this->handler->getMetadata( $this, $this->getLocalRefPath() ); |
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189 | } |
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190 | } |
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191 | |||
192 | return $this->metadata; |
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193 | } |
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194 | |||
195 | /** |
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196 | * @return bool|string |
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197 | */ |
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198 | function getURL() { |
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199 | if ( $this->repo ) { |
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200 | return $this->repo->getZoneUrl( 'public' ) . '/' . |
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201 | $this->repo->getHashPath( $this->name ) . rawurlencode( $this->name ); |
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202 | } else { |
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203 | return false; |
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204 | } |
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205 | } |
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206 | |||
207 | /** |
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208 | * @return bool|int |
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209 | */ |
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210 | function getSize() { |
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211 | $this->assertRepoDefined(); |
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212 | |||
213 | return $this->repo->getFileSize( $this->path ); |
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214 | } |
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215 | |||
216 | /** |
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217 | * Optimize getLocalRefPath() by using an existing local reference. |
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218 | * The file at the path of $fsFile should not be deleted (or at least |
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219 | * not until the end of the request). This is mostly a performance hack. |
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220 | * |
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221 | * @param FSFile $fsFile |
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222 | * @return void |
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223 | */ |
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224 | public function setLocalReference( FSFile $fsFile ) { |
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225 | $this->fsFile = $fsFile; |
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226 | } |
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227 | } |
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228 |
This check looks at variables that are passed out again to other methods.
If the outgoing method call has stricter type requirements than the method itself, an issue is raised.
An additional type check may prevent trouble.