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<?php |
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/** |
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* @link https://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license https://www.yiiframework.com/license/ |
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*/ |
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namespace yii\validators; |
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use Yii; |
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use yii\helpers\FileHelper; |
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use yii\helpers\Html; |
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use yii\helpers\Json; |
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use yii\helpers\StringHelper; |
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use yii\web\JsExpression; |
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use yii\web\UploadedFile; |
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/** |
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* FileValidator verifies if an attribute is receiving a valid uploaded file. |
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* |
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* Note that you should enable `fileinfo` PHP extension. |
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* |
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* @property-read int $sizeLimit The size limit for uploaded files. |
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* |
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* @author Qiang Xue <[email protected]> |
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* @since 2.0 |
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*/ |
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class FileValidator extends Validator |
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{ |
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/** |
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* @var array|string|null a list of file name extensions that are allowed to be uploaded. |
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* This can be either an array or a string consisting of file extension names |
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* separated by space or comma (e.g. "gif, jpg"). |
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* Extension names are case-insensitive. Defaults to null, meaning all file name |
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* extensions are allowed. |
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* @see wrongExtension for the customized message for wrong file type. |
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*/ |
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public $extensions; |
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/** |
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* @var bool whether to check file type (extension) with mime-type. If extension produced by |
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* file mime-type check differs from uploaded file extension, the file will be considered as invalid. |
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*/ |
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public $checkExtensionByMimeType = true; |
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/** |
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* @var array|string|null a list of file MIME types that are allowed to be uploaded. |
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* This can be either an array or a string consisting of file MIME types |
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* separated by space or comma (e.g. "text/plain, image/png"). |
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* The mask with the special character `*` can be used to match groups of mime types. |
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* For example `image/*` will pass all mime types, that begin with `image/` (e.g. `image/jpeg`, `image/png`). |
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* Mime type names are case-insensitive. Defaults to null, meaning all MIME types are allowed. |
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* @see wrongMimeType for the customized message for wrong MIME type. |
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*/ |
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public $mimeTypes; |
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/** |
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* @var int|null the minimum number of bytes required for the uploaded file. |
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* Defaults to null, meaning no limit. |
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* @see tooSmall for the customized message for a file that is too small. |
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*/ |
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public $minSize; |
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/** |
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* @var int|null the maximum number of bytes required for the uploaded file. |
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* Defaults to null, meaning no limit. |
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* Note, the size limit is also affected by `upload_max_filesize` and `post_max_size` INI setting |
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* and the 'MAX_FILE_SIZE' hidden field value. See [[getSizeLimit()]] for details. |
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* @see https://www.php.net/manual/en/ini.core.php#ini.upload-max-filesize |
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* @see https://www.php.net/post-max-size |
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* @see getSizeLimit |
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* @see tooBig for the customized message for a file that is too big. |
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*/ |
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public $maxSize; |
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/** |
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* @var int the maximum file count the given attribute can hold. |
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* Defaults to 1, meaning single file upload. By defining a higher number, |
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* multiple uploads become possible. Setting it to `0` means there is no limit on |
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* the number of files that can be uploaded simultaneously. |
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* |
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* > Note: The maximum number of files allowed to be uploaded simultaneously is |
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* also limited with PHP directive `max_file_uploads`, which defaults to 20. |
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* |
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* @see https://www.php.net/manual/en/ini.core.php#ini.max-file-uploads |
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* @see tooMany for the customized message when too many files are uploaded. |
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*/ |
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public $maxFiles = 1; |
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/** |
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* @var int the minimum file count the given attribute can hold. |
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* Defaults to 0. Higher value means at least that number of files should be uploaded. |
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* |
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* @see tooFew for the customized message when too few files are uploaded. |
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* @since 2.0.14 |
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*/ |
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public $minFiles = 0; |
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/** |
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* @var string the error message used when a file is not uploaded correctly. |
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*/ |
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public $message; |
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/** |
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* @var string the error message used when no file is uploaded. |
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* Note that this is the text of the validation error message. To make uploading files required, |
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* you have to set [[skipOnEmpty]] to `false`. |
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*/ |
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public $uploadRequired; |
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/** |
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* @var string the error message used when the uploaded file is too large. |
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* You may use the following tokens in the message: |
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* |
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* - {attribute}: the attribute name |
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* - {file}: the uploaded file name |
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* - {limit}: the maximum size allowed (see [[getSizeLimit()]]) |
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* - {formattedLimit}: the maximum size formatted |
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* with [[\yii\i18n\Formatter::asShortSize()|Formatter::asShortSize()]] |
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*/ |
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public $tooBig; |
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/** |
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* @var string the error message used when the uploaded file is too small. |
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* You may use the following tokens in the message: |
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* |
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* - {attribute}: the attribute name |
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* - {file}: the uploaded file name |
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* - {limit}: the value of [[minSize]] |
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* - {formattedLimit}: the value of [[minSize]] formatted |
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* with [[\yii\i18n\Formatter::asShortSize()|Formatter::asShortSize()] |
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*/ |
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public $tooSmall; |
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/** |
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* @var string the error message used if the count of multiple uploads exceeds limit. |
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* You may use the following tokens in the message: |
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* |
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* - {attribute}: the attribute name |
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* - {limit}: the value of [[maxFiles]] |
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*/ |
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public $tooMany; |
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/** |
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* @var string the error message used if the count of multiple uploads less that minFiles. |
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* You may use the following tokens in the message: |
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* |
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* - {attribute}: the attribute name |
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* - {limit}: the value of [[minFiles]] |
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* |
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* @since 2.0.14 |
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*/ |
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public $tooFew; |
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/** |
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* @var string the error message used when the uploaded file has an extension name |
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* that is not listed in [[extensions]]. You may use the following tokens in the message: |
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* |
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* - {attribute}: the attribute name |
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* - {file}: the uploaded file name |
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* - {extensions}: the list of the allowed extensions. |
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*/ |
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public $wrongExtension; |
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/** |
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* @var string the error message used when the file has an mime type |
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* that is not allowed by [[mimeTypes]] property. |
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* You may use the following tokens in the message: |
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* |
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* - {attribute}: the attribute name |
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* - {file}: the uploaded file name |
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* - {mimeTypes}: the value of [[mimeTypes]] |
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*/ |
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public $wrongMimeType; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function init() |
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{ |
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parent::init(); |
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if ($this->message === null) { |
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$this->message = Yii::t('yii', 'File upload failed.'); |
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} |
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if ($this->uploadRequired === null) { |
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$this->uploadRequired = Yii::t('yii', 'Please upload a file.'); |
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} |
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if ($this->tooMany === null) { |
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$this->tooMany = Yii::t('yii', 'You can upload at most {limit, number} {limit, plural, one{file} other{files}}.'); |
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} |
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if ($this->tooFew === null) { |
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$this->tooFew = Yii::t('yii', 'You should upload at least {limit, number} {limit, plural, one{file} other{files}}.'); |
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} |
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if ($this->wrongExtension === null) { |
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$this->wrongExtension = Yii::t('yii', 'Only files with these extensions are allowed: {extensions}.'); |
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} |
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if ($this->tooBig === null) { |
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$this->tooBig = Yii::t('yii', 'The file "{file}" is too big. Its size cannot exceed {formattedLimit}.'); |
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} |
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if ($this->tooSmall === null) { |
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$this->tooSmall = Yii::t('yii', 'The file "{file}" is too small. Its size cannot be smaller than {formattedLimit}.'); |
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} |
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if (!is_array($this->extensions)) { |
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$this->extensions = preg_split('/[\s,]+/', strtolower((string)$this->extensions), -1, PREG_SPLIT_NO_EMPTY); |
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} else { |
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$this->extensions = array_map('strtolower', $this->extensions); |
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} |
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if ($this->wrongMimeType === null) { |
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$this->wrongMimeType = Yii::t('yii', 'Only files with these MIME types are allowed: {mimeTypes}.'); |
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} |
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if (!is_array($this->mimeTypes)) { |
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$this->mimeTypes = preg_split('/[\s,]+/', strtolower((string)$this->mimeTypes), -1, PREG_SPLIT_NO_EMPTY); |
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} else { |
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$this->mimeTypes = array_map('strtolower', $this->mimeTypes); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function validateAttribute($model, $attribute) |
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{ |
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if ($this->maxFiles != 1 || $this->minFiles > 1) { |
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$rawFiles = $model->$attribute; |
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if (!is_array($rawFiles)) { |
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$this->addError($model, $attribute, $this->uploadRequired); |
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return; |
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} |
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$files = $this->filterFiles($rawFiles); |
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$model->$attribute = $files; |
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if (empty($files)) { |
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$this->addError($model, $attribute, $this->uploadRequired); |
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return; |
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} |
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$filesCount = count($files); |
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if ($this->maxFiles && $filesCount > $this->maxFiles) { |
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$this->addError($model, $attribute, $this->tooMany, ['limit' => $this->maxFiles]); |
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} |
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if ($this->minFiles && $this->minFiles > $filesCount) { |
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$this->addError($model, $attribute, $this->tooFew, ['limit' => $this->minFiles]); |
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} |
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foreach ($files as $file) { |
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4 |
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$result = $this->validateValue($file); |
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if (!empty($result)) { |
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$this->addError($model, $attribute, $result[0], $result[1]); |
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} |
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} |
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} else { |
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$result = $this->validateValue($model->$attribute); |
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if (!empty($result)) { |
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$this->addError($model, $attribute, $result[0], $result[1]); |
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} |
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} |
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} |
250
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251
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/** |
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* Files filter. |
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* @param array $files |
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* @return UploadedFile[] |
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*/ |
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4 |
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private function filterFiles(array $files) |
257
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{ |
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4 |
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$result = []; |
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4 |
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foreach ($files as $fileName => $file) { |
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4 |
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if ($file instanceof UploadedFile && $file->error !== UPLOAD_ERR_NO_FILE) { |
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4 |
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$result[$fileName] = $file; |
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} |
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} |
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266
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4 |
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return $result; |
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} |
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269
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/** |
270
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* {@inheritdoc} |
271
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*/ |
272
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42 |
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protected function validateValue($value) |
273
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{ |
274
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42 |
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if (!$value instanceof UploadedFile || $value->error == UPLOAD_ERR_NO_FILE) { |
275
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1 |
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return [$this->uploadRequired, []]; |
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} |
277
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278
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42 |
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switch ($value->error) { |
279
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42 |
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case UPLOAD_ERR_OK: |
280
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38 |
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if ($this->maxSize !== null && $value->size > $this->getSizeLimit()) { |
281
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1 |
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return [ |
282
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1 |
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$this->tooBig, |
283
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1 |
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[ |
284
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1 |
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'file' => $value->name, |
285
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1 |
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'limit' => $this->getSizeLimit(), |
286
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1 |
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'formattedLimit' => Yii::$app->formatter->asShortSize($this->getSizeLimit()), |
287
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1 |
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], |
288
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1 |
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]; |
289
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38 |
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} elseif ($this->minSize !== null && $value->size < $this->minSize) { |
290
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1 |
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return [ |
291
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1 |
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$this->tooSmall, |
292
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1 |
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[ |
293
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1 |
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'file' => $value->name, |
294
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1 |
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'limit' => $this->minSize, |
295
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1 |
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'formattedLimit' => Yii::$app->formatter->asShortSize($this->minSize), |
296
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1 |
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], |
297
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1 |
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]; |
298
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38 |
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} elseif (!empty($this->extensions) && !$this->validateExtension($value)) { |
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8 |
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return [$this->wrongExtension, ['file' => $value->name, 'extensions' => implode(', ', $this->extensions)]]; |
300
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33 |
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} elseif (!empty($this->mimeTypes) && !$this->validateMimeType($value)) { |
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5 |
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return [$this->wrongMimeType, ['file' => $value->name, 'mimeTypes' => implode(', ', $this->mimeTypes)]]; |
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302
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} |
303
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304
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28 |
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return null; |
305
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5 |
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case UPLOAD_ERR_INI_SIZE: |
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5 |
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case UPLOAD_ERR_FORM_SIZE: |
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1 |
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return [$this->tooBig, [ |
308
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1 |
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'file' => $value->name, |
309
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1 |
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'limit' => $this->getSizeLimit(), |
310
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1 |
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'formattedLimit' => Yii::$app->formatter->asShortSize($this->getSizeLimit()), |
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1 |
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]]; |
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5 |
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case UPLOAD_ERR_PARTIAL: |
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2 |
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Yii::warning('File was only partially uploaded: ' . $value->name, __METHOD__); |
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2 |
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break; |
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3 |
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case UPLOAD_ERR_NO_TMP_DIR: |
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1 |
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Yii::warning('Missing the temporary folder to store the uploaded file: ' . $value->name, __METHOD__); |
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1 |
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break; |
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2 |
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case UPLOAD_ERR_CANT_WRITE: |
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1 |
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Yii::warning('Failed to write the uploaded file to disk: ' . $value->name, __METHOD__); |
320
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1 |
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break; |
321
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1 |
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case UPLOAD_ERR_EXTENSION: |
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1 |
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Yii::warning('File upload was stopped by some PHP extension: ' . $value->name, __METHOD__); |
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1 |
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break; |
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default: |
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break; |
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} |
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328
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5 |
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return [$this->message, []]; |
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} |
330
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331
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/** |
332
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* Returns the maximum size allowed for uploaded files. |
333
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* |
334
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* This is determined based on four factors: |
335
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* |
336
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* - 'upload_max_filesize' in php.ini |
337
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|
|
* - 'post_max_size' in php.ini |
338
|
|
|
* - 'MAX_FILE_SIZE' hidden field |
339
|
|
|
* - [[maxSize]] |
340
|
|
|
* |
341
|
|
|
* @return int the size limit for uploaded files. |
342
|
|
|
*/ |
343
|
2 |
|
public function getSizeLimit() |
344
|
|
|
{ |
345
|
|
|
// Get the lowest between post_max_size and upload_max_filesize, log a warning if the first is < than the latter |
346
|
2 |
|
$limit = $this->sizeToBytes(ini_get('upload_max_filesize')); |
347
|
2 |
|
$postLimit = $this->sizeToBytes(ini_get('post_max_size')); |
348
|
2 |
|
if ($postLimit > 0 && $postLimit < $limit) { |
349
|
|
|
Yii::warning('PHP.ini\'s \'post_max_size\' is less than \'upload_max_filesize\'.', __METHOD__); |
350
|
|
|
$limit = $postLimit; |
351
|
|
|
} |
352
|
2 |
|
if ($this->maxSize !== null && $limit > 0 && $this->maxSize < $limit) { |
353
|
2 |
|
$limit = $this->maxSize; |
354
|
|
|
} |
355
|
2 |
|
if (isset($_POST['MAX_FILE_SIZE']) && $_POST['MAX_FILE_SIZE'] > 0 && $_POST['MAX_FILE_SIZE'] < $limit) { |
356
|
1 |
|
$limit = (int) $_POST['MAX_FILE_SIZE']; |
357
|
|
|
} |
358
|
|
|
|
359
|
2 |
|
return $limit; |
360
|
|
|
} |
361
|
|
|
|
362
|
|
|
/** |
363
|
|
|
* {@inheritdoc} |
364
|
|
|
* @param bool $trim |
365
|
|
|
*/ |
366
|
1 |
|
public function isEmpty($value, $trim = false) |
|
|
|
|
367
|
|
|
{ |
368
|
1 |
|
$value = is_array($value) ? reset($value) : $value; |
369
|
1 |
|
return !($value instanceof UploadedFile) || $value->error == UPLOAD_ERR_NO_FILE; |
370
|
|
|
} |
371
|
|
|
|
372
|
|
|
/** |
373
|
|
|
* Converts php.ini style size to bytes. |
374
|
|
|
* |
375
|
|
|
* @param string $sizeStr $sizeStr |
376
|
|
|
* @return int |
377
|
|
|
*/ |
378
|
2 |
|
private function sizeToBytes($sizeStr) |
379
|
|
|
{ |
380
|
2 |
|
switch (substr($sizeStr, -1)) { |
381
|
2 |
|
case 'M': |
382
|
|
|
case 'm': |
383
|
2 |
|
return (int) $sizeStr * 1048576; |
384
|
|
|
case 'K': |
385
|
|
|
case 'k': |
386
|
|
|
return (int) $sizeStr * 1024; |
387
|
|
|
case 'G': |
388
|
|
|
case 'g': |
389
|
|
|
return (int) $sizeStr * 1073741824; |
390
|
|
|
default: |
391
|
|
|
return (int) $sizeStr; |
392
|
|
|
} |
393
|
|
|
} |
394
|
|
|
|
395
|
|
|
/** |
396
|
|
|
* Checks if given uploaded file have correct type (extension) according current validator settings. |
397
|
|
|
* @param UploadedFile $file |
398
|
|
|
* @return bool |
399
|
|
|
*/ |
400
|
17 |
|
protected function validateExtension($file) |
401
|
|
|
{ |
402
|
17 |
|
$extension = mb_strtolower($file->extension, 'UTF-8'); |
403
|
|
|
|
404
|
17 |
|
if ($this->checkExtensionByMimeType) { |
405
|
13 |
|
$mimeType = FileHelper::getMimeType($file->tempName, null, false); |
|
|
|
|
406
|
13 |
|
if ($mimeType === null) { |
|
|
|
|
407
|
|
|
return false; |
408
|
|
|
} |
409
|
|
|
|
410
|
13 |
|
$extensionsByMimeType = FileHelper::getExtensionsByMimeType($mimeType); |
411
|
|
|
|
412
|
13 |
|
if (!in_array($extension, $extensionsByMimeType, true)) { |
413
|
|
|
return false; |
414
|
|
|
} |
415
|
|
|
} |
416
|
|
|
|
417
|
17 |
|
if (!empty($this->extensions)) { |
418
|
17 |
|
foreach ((array) $this->extensions as $ext) { |
419
|
17 |
|
if ($extension === $ext || StringHelper::endsWith($file->name, ".$ext", false)) { |
420
|
12 |
|
return true; |
421
|
|
|
} |
422
|
|
|
} |
423
|
8 |
|
return false; |
424
|
|
|
} |
425
|
|
|
|
426
|
|
|
return true; |
427
|
|
|
} |
428
|
|
|
|
429
|
|
|
/** |
430
|
|
|
* {@inheritdoc} |
431
|
|
|
*/ |
432
|
|
|
public function clientValidateAttribute($model, $attribute, $view) |
433
|
|
|
{ |
434
|
|
|
ValidationAsset::register($view); |
435
|
|
|
$options = $this->getClientOptions($model, $attribute); |
436
|
|
|
return 'yii.validation.file(attribute, messages, ' . Json::htmlEncode($options) . ');'; |
437
|
|
|
} |
438
|
|
|
|
439
|
|
|
/** |
440
|
|
|
* {@inheritdoc} |
441
|
|
|
*/ |
442
|
|
|
public function getClientOptions($model, $attribute) |
443
|
|
|
{ |
444
|
|
|
$label = $model->getAttributeLabel($attribute); |
445
|
|
|
|
446
|
|
|
$options = []; |
447
|
|
|
if ($this->message !== null) { |
448
|
|
|
$options['message'] = $this->formatMessage($this->message, [ |
449
|
|
|
'attribute' => $label, |
450
|
|
|
]); |
451
|
|
|
} |
452
|
|
|
|
453
|
|
|
$options['skipOnEmpty'] = $this->skipOnEmpty; |
454
|
|
|
|
455
|
|
|
if (!$this->skipOnEmpty) { |
456
|
|
|
$options['uploadRequired'] = $this->formatMessage($this->uploadRequired, [ |
457
|
|
|
'attribute' => $label, |
458
|
|
|
]); |
459
|
|
|
} |
460
|
|
|
|
461
|
|
|
if ($this->mimeTypes !== null) { |
462
|
|
|
$mimeTypes = []; |
463
|
|
|
foreach ($this->mimeTypes as $mimeType) { |
464
|
|
|
$mimeTypes[] = new JsExpression(Html::escapeJsRegularExpression($this->buildMimeTypeRegexp($mimeType))); |
465
|
|
|
} |
466
|
|
|
$options['mimeTypes'] = $mimeTypes; |
467
|
|
|
$options['wrongMimeType'] = $this->formatMessage($this->wrongMimeType, [ |
468
|
|
|
'attribute' => $label, |
469
|
|
|
'mimeTypes' => implode(', ', $this->mimeTypes), |
|
|
|
|
470
|
|
|
]); |
471
|
|
|
} |
472
|
|
|
|
473
|
|
|
if ($this->extensions !== null) { |
474
|
|
|
$options['extensions'] = $this->extensions; |
475
|
|
|
$options['wrongExtension'] = $this->formatMessage($this->wrongExtension, [ |
476
|
|
|
'attribute' => $label, |
477
|
|
|
'extensions' => implode(', ', $this->extensions), |
478
|
|
|
]); |
479
|
|
|
} |
480
|
|
|
|
481
|
|
|
if ($this->minSize !== null) { |
482
|
|
|
$options['minSize'] = $this->minSize; |
483
|
|
|
$options['tooSmall'] = $this->formatMessage($this->tooSmall, [ |
484
|
|
|
'attribute' => $label, |
485
|
|
|
'limit' => $this->minSize, |
486
|
|
|
'formattedLimit' => Yii::$app->formatter->asShortSize($this->minSize), |
487
|
|
|
]); |
488
|
|
|
} |
489
|
|
|
|
490
|
|
|
if ($this->maxSize !== null) { |
491
|
|
|
$options['maxSize'] = $this->maxSize; |
492
|
|
|
$options['tooBig'] = $this->formatMessage($this->tooBig, [ |
493
|
|
|
'attribute' => $label, |
494
|
|
|
'limit' => $this->getSizeLimit(), |
495
|
|
|
'formattedLimit' => Yii::$app->formatter->asShortSize($this->getSizeLimit()), |
496
|
|
|
]); |
497
|
|
|
} |
498
|
|
|
|
499
|
|
|
if ($this->maxFiles !== null) { |
500
|
|
|
$options['maxFiles'] = $this->maxFiles; |
501
|
|
|
$options['tooMany'] = $this->formatMessage($this->tooMany, [ |
502
|
|
|
'attribute' => $label, |
503
|
|
|
'limit' => $this->maxFiles, |
504
|
|
|
]); |
505
|
|
|
} |
506
|
|
|
|
507
|
|
|
return $options; |
508
|
|
|
} |
509
|
|
|
|
510
|
|
|
/** |
511
|
|
|
* Builds the RegExp from the $mask. |
512
|
|
|
* |
513
|
|
|
* @param string $mask |
514
|
|
|
* @return string the regular expression |
515
|
|
|
* @see mimeTypes |
516
|
|
|
*/ |
517
|
13 |
|
private function buildMimeTypeRegexp($mask) |
518
|
|
|
{ |
519
|
13 |
|
return '/^' . str_replace('\*', '.*', preg_quote($mask, '/')) . '$/i'; |
520
|
|
|
} |
521
|
|
|
|
522
|
|
|
/** |
523
|
|
|
* Checks the mimeType of the $file against the list in the [[mimeTypes]] property. |
524
|
|
|
* |
525
|
|
|
* @param UploadedFile $file |
526
|
|
|
* @return bool whether the $file mimeType is allowed |
527
|
|
|
* @throws \yii\base\InvalidConfigException |
528
|
|
|
* @see mimeTypes |
529
|
|
|
* @since 2.0.8 |
530
|
|
|
*/ |
531
|
17 |
|
protected function validateMimeType($file) |
532
|
|
|
{ |
533
|
17 |
|
$fileMimeType = $this->getMimeTypeByFile($file->tempName); |
534
|
17 |
|
if ($fileMimeType === null) { |
535
|
|
|
return false; |
536
|
|
|
} |
537
|
|
|
|
538
|
17 |
|
foreach ($this->mimeTypes as $mimeType) { |
539
|
17 |
|
if (strcasecmp($mimeType, $fileMimeType) === 0) { |
540
|
3 |
|
return true; |
541
|
|
|
} |
542
|
|
|
|
543
|
14 |
|
if (strpos($mimeType, '*') !== false && preg_match($this->buildMimeTypeRegexp($mimeType), $fileMimeType)) { |
544
|
9 |
|
return true; |
545
|
|
|
} |
546
|
|
|
} |
547
|
|
|
|
548
|
5 |
|
return false; |
549
|
|
|
} |
550
|
|
|
|
551
|
|
|
/** |
552
|
|
|
* Get MIME type by file path |
553
|
|
|
* |
554
|
|
|
* @param string $filePath |
555
|
|
|
* @return string|null |
556
|
|
|
* @throws \yii\base\InvalidConfigException |
557
|
|
|
* @since 2.0.26 |
558
|
|
|
*/ |
559
|
13 |
|
protected function getMimeTypeByFile($filePath) |
560
|
|
|
{ |
561
|
13 |
|
return FileHelper::getMimeType($filePath); |
562
|
|
|
} |
563
|
|
|
} |
564
|
|
|
|