mirror of
https://github.com/silverstripe/silverstripe-userforms.git
synced 2024-09-06 09:41:23 +02:00
165 lines
4.5 KiB
PHP
Executable File
165 lines
4.5 KiB
PHP
Executable File
<?php
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namespace SilverStripe\UserForms\Model\EditableFormField;
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use SilverStripe\Assets\File;
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use SilverStripe\Assets\Folder;
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use SilverStripe\Core\Config\Config;
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use SilverStripe\Forms\FileField;
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use SilverStripe\Forms\LiteralField;
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use SilverStripe\Forms\NumericField;
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use SilverStripe\Forms\TreeDropdownField;
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use SilverStripe\UserForms\Model\EditableFormField;
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use SilverStripe\UserForms\Model\Submission\SubmittedFileField;
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/**
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* Allows a user to add a field that can be used to upload a file.
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*
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* @package userforms
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*/
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class EditableFileField extends EditableFormField
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{
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private static $singular_name = 'File Upload Field';
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private static $plural_names = 'File Fields';
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private static $db = [
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'MaxFileSizeMB' => 'Float',
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];
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private static $has_one = [
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'Folder' => Folder::class // From CustomFields
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];
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private static $table_name = 'EditableFileField';
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/**
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* Further limit uploadable file extensions in addition to the restrictions
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* imposed by the File.allowed_extensions global configuration.
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* @config
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*/
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private static $allowed_extensions_blacklist = [
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'htm', 'html', 'xhtml', 'swf', 'xml'
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];
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/**
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* @return FieldList
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*/
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public function getCMSFields()
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{
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$fields = parent::getCMSFields();
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$fields->addFieldToTab(
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'Root.Main',
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TreeDropdownField::create(
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'FolderID',
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_t('EditableUploadField.SELECTUPLOADFOLDER', 'Select upload folder'),
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Folder::class
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)
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);
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$fields->addFieldToTab("Root.Main", LiteralField::create(
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'FileUploadWarning',
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'<p class="message notice">' . _t(
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'SilverStripe\\UserForms\\Model\\UserDefinedForm.FileUploadWarning',
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'Files uploaded through this field could be publicly accessible if the exact URL is known'
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)
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. '</p>'
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), 'Type');
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$fields->addFieldToTab(
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'Root.Main',
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NumericField::create('MaxFileSizeMB')
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->setTitle('Max File Size MB')
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->setDescription("Note: Maximum php allowed size is {$this->getPHPMaxFileSizeMB()} MB")
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);
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$fields->removeByName('Default');
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return $fields;
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}
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/**
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* @return ValidationResult
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*/
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public function validate()
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{
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$result = parent::validate();
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$max = static::get_php_max_file_size();
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if ($this->MaxFileSizeMB * 1024 > $max) {
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$result->addError("Your max file size limit can't be larger than the server's limit of {$this->getPHPMaxFileSizeMB()}.");
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}
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return $result;
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}
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public function getFormField()
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{
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$field = FileField::create($this->Name, $this->EscapedTitle)
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->setFieldHolderTemplate('UserFormsField_holder')
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->setTemplate(__CLASS__);
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$field->setFieldHolderTemplate('UserFormsField_holder')
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->setTemplate(__CLASS__);
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$field->getValidator()->setAllowedExtensions(
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array_diff(
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// filter out '' since this would be a regex problem on JS end
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array_filter(Config::inst()->get(File::class, 'allowed_extensions')),
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$this->config()->get('allowed_extensions_blacklist')
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)
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);
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if ($this->MaxFileSizeMB > 0) {
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$field->getValidator()->setAllowedMaxFileSize($this->MaxFileSizeMB * 1024 * 1024);
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} else {
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$field->getValidator()->setAllowedMaxFileSize(static::get_php_max_file_size());
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}
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$folder = $this->Folder();
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if ($folder && $folder->exists()) {
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$field->setFolderName(
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preg_replace("/^assets\//", "", $folder->Filename)
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);
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}
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$this->doUpdateFormField($field);
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return $field;
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}
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/**
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* Return the value for the database, link to the file is stored as a
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* relation so value for the field can be null.
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*
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* @return string
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*/
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public function getValueFromData()
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{
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return null;
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}
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public function getSubmittedFormField()
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{
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return SubmittedFileField::create();
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}
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/**
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* @return float
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*/
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public static function get_php_max_file_size()
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{
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$maxUpload = File::ini2bytes(ini_get('upload_max_filesize'));
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$maxPost = File::ini2bytes(ini_get('post_max_size'));
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return min($maxUpload, $maxPost);
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}
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public function getPHPMaxFileSizeMB()
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{
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return round(static::get_php_max_file_size() / 1024.0, 1);
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}
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}
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