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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | * |
| 18 | * @file |
| 19 | */ |
| 20 | |
| 21 | use MediaWiki\MainConfigNames; |
| 22 | use MediaWiki\MediaWikiServices; |
| 23 | use MediaWiki\Permissions\Authority; |
| 24 | use MediaWiki\User\UserIdentity; |
| 25 | |
| 26 | /** |
| 27 | * Trait for functionality related to media files |
| 28 | * |
| 29 | * @internal |
| 30 | * @ingroup FileRepo |
| 31 | */ |
| 32 | trait MediaFileTrait { |
| 33 | /** |
| 34 | * @param File $file |
| 35 | * @param Authority $performer for permissions check |
| 36 | * @param array $transforms array of transforms to include in the response |
| 37 | * @return array response data |
| 38 | */ |
| 39 | private function getFileInfo( $file, Authority $performer, $transforms ) { |
| 40 | $urlUtils = MediaWikiServices::getInstance()->getUrlUtils(); |
| 41 | // If there is a problem with the file, there is very little info we can reliably |
| 42 | // return (T228286, T239213), but we do what we can (T201205). |
| 43 | $responseFile = [ |
| 44 | 'title' => $file->getTitle()->getText(), |
| 45 | 'file_description_url' => $urlUtils->expand( $file->getDescriptionUrl(), PROTO_RELATIVE ), |
| 46 | 'latest' => null, |
| 47 | 'preferred' => null, |
| 48 | 'original' => null, |
| 49 | ]; |
| 50 | |
| 51 | foreach ( $transforms as $transformType => $_ ) { |
| 52 | $responseFile[$transformType] = null; |
| 53 | } |
| 54 | |
| 55 | if ( $file->exists() ) { |
| 56 | $uploader = $file->getUploader( File::FOR_THIS_USER, $performer ); |
| 57 | if ( $uploader ) { |
| 58 | $fileUser = [ |
| 59 | 'id' => $uploader->getId(), |
| 60 | 'name' => $uploader->getName(), |
| 61 | ]; |
| 62 | } else { |
| 63 | $fileUser = [ |
| 64 | 'id' => null, |
| 65 | 'name' => null, |
| 66 | ]; |
| 67 | } |
| 68 | $responseFile['latest'] = [ |
| 69 | 'timestamp' => wfTimestamp( TS_ISO_8601, $file->getTimestamp() ), |
| 70 | 'user' => $fileUser, |
| 71 | ]; |
| 72 | |
| 73 | // If the file doesn't and shouldn't have a duration, return null instead of 0. |
| 74 | // Testing for 0 first, then checking mediatype, makes gifs behave as desired for |
| 75 | // both still and animated cases. |
| 76 | $duration = $file->getLength(); |
| 77 | $mediaTypesWithDurations = [ MEDIATYPE_AUDIO, MEDIATYPE_VIDEO, MEDIATYPE_MULTIMEDIA ]; |
| 78 | if ( $duration == 0 && !in_array( $file->getMediaType(), $mediaTypesWithDurations ) ) { |
| 79 | $duration = null; |
| 80 | } |
| 81 | |
| 82 | if ( $file->allowInlineDisplay() ) { |
| 83 | foreach ( $transforms as $transformType => $transform ) { |
| 84 | $responseFile[$transformType] = $this->getTransformInfo( |
| 85 | $file, |
| 86 | // @phan-suppress-next-line PhanTypeMismatchArgumentNullable False positive |
| 87 | $duration, |
| 88 | $transform['maxWidth'], |
| 89 | $transform['maxHeight'] |
| 90 | ); |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | $responseFile['original'] = [ |
| 95 | 'mediatype' => $file->getMediaType(), |
| 96 | 'size' => $file->getSize(), |
| 97 | 'width' => $file->getWidth() ?: null, |
| 98 | 'height' => $file->getHeight() ?: null, |
| 99 | 'duration' => $duration, |
| 100 | 'url' => $urlUtils->expand( $file->getUrl(), PROTO_RELATIVE ), |
| 101 | ]; |
| 102 | } |
| 103 | |
| 104 | return $responseFile; |
| 105 | } |
| 106 | |
| 107 | /** |
| 108 | * @param File $file |
| 109 | * @param int|null $duration File duration (if any) |
| 110 | * @param int $maxWidth Max width to display at |
| 111 | * @param int $maxHeight Max height to display at |
| 112 | * @return array|null Transform info ready to include in response, or null if unavailable |
| 113 | */ |
| 114 | private function getTransformInfo( $file, $duration, $maxWidth, $maxHeight ) { |
| 115 | $transformInfo = null; |
| 116 | |
| 117 | [ $width, $height ] = $file->getDisplayWidthHeight( $maxWidth, $maxHeight ); |
| 118 | $transform = $file->transform( [ 'width' => $width, 'height' => $height ] ); |
| 119 | if ( $transform && !$transform->isError() ) { |
| 120 | // $file->getSize() returns original size. Only include if dimensions match. |
| 121 | $size = null; |
| 122 | if ( $file->getWidth() == $transform->getWidth() && |
| 123 | $file->getHeight() == $transform->getHeight() |
| 124 | ) { |
| 125 | $size = $file->getSize(); |
| 126 | } |
| 127 | |
| 128 | $transformInfo = [ |
| 129 | 'mediatype' => $transform->getFile()->getMediaType(), |
| 130 | 'size' => $size, |
| 131 | 'width' => $transform->getWidth() ?: null, |
| 132 | 'height' => $transform->getHeight() ?: null, |
| 133 | 'duration' => $duration, |
| 134 | 'url' => MediaWikiServices::getInstance()->getUrlUtils() |
| 135 | ->expand( $transform->getUrl(), PROTO_RELATIVE ), |
| 136 | ]; |
| 137 | } |
| 138 | |
| 139 | return $transformInfo; |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * Returns the corresponding $wgImageLimits entry for the selected user option |
| 144 | * |
| 145 | * @param UserIdentity $user |
| 146 | * @param string $optionName Name of a option to check, typically imagesize or thumbsize |
| 147 | * @return int[] |
| 148 | * @since 1.35 |
| 149 | */ |
| 150 | public static function getImageLimitsFromOption( UserIdentity $user, string $optionName ) { |
| 151 | $imageLimits = MediaWikiServices::getInstance()->getMainConfig() |
| 152 | ->get( MainConfigNames::ImageLimits ); |
| 153 | $optionsLookup = MediaWikiServices::getInstance()->getUserOptionsLookup(); |
| 154 | $option = $optionsLookup->getIntOption( $user, $optionName ); |
| 155 | if ( !isset( $imageLimits[$option] ) ) { |
| 156 | $option = $optionsLookup->getDefaultOption( $optionName, $user ); |
| 157 | } |
| 158 | |
| 159 | // The user offset might still be incorrect, specially if |
| 160 | // $wgImageLimits got changed (see T10858). |
| 161 | if ( !isset( $imageLimits[$option] ) ) { |
| 162 | // Default to the first offset in $wgImageLimits |
| 163 | $option = 0; |
| 164 | } |
| 165 | |
| 166 | // if nothing is set, fallback to a hardcoded default |
| 167 | return $imageLimits[$option] ?? [ 800, 600 ]; |
| 168 | } |
| 169 | } |