如何在使用 CakePHP 1.3 的文件上传期间过滤多个 MimeType 以进行验证？

Question

我有一个文件上传功能，我想允许图像和文档而禁止其他图像和文档，只检查扩展名听起来是个坏主意。

我拥有的代码 sn-p 是：

var $actsAs = array(
    'MeioUpload' => array(
        'file' => array(
            'dir' => 'uploads{DS}{ModelName}',
            'fields' => array(
                'filesize' => 'size',
                'mimetype' => array('image/jpeg', 'image/pjpeg', 'image/gif',
                'image/png', 'application/msword', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
                'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
                'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
                'application/vnd.openxmlformats-officedocument.presentationml.presentation','application/pdf'),
                'message' => 'Please upload a valid document file'
            ),
            'allowed_mime' => array('image/jpeg', 'image/pjpeg', 'image/gif',
                'image/png', 'application/msword', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
                'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
                'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
                'application/vnd.openxmlformats-officedocument.presentationml.presentation','application/pdf'),
            'allowed_ext' => array(' .docx',' .jpg',' .jpeg',' .png',' .gif',' .doc',' .xls',' .xlsx',' .pdf'),
            'validations' => array(
                'MaxSize' => array(
                    'check' => false,
                ),
            ),
            'message' => 'Invalid File. Please upload only document or images'
        ),
    ),
);

如何分配 mimetype 以允许：.txt、.doc、.docx、.xls、.xlsx、.pdf、.png、.jpg、.gif、.jpeg 仅限

MEIOUPLOAD 调整会很棒！

Answer 1

试了好几个地方，终于求助于 PHP 的核心功能。 MeioUpload 不支持检查多种 mime 类型。希望未来的版本可能会有所增强。

                $allowMime = array('image/jpeg', 'image/pjpeg', 'image/gif',
                                'image/png', 'application/msword','application/vnd.ms-office','application/vnd.openxmlformats-officedocument.wordprocessingml.document',
                                'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
                                'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
                                'application/vnd.openxmlformats-officedocument.presentationml.presentation','application/pdf');
                $file_info = new finfo(FILEINFO_MIME);
                $filename = $attachments[$file_name];
                $data = explode(";",$file_info->file($filename));
                $mime = $data[0];
                if(in_array($mime, $allowMime))
                {
 //Your code here

Answer 2

您可以使用Mime Type Model Validation。 代码如下：

This rule checks for valid mimeType

<?php
   public $validate = array('image' => array(
                      'rule' => array('mimeType', array('image/gif')),
                      'message' => 'Invalid mime type.'
                                    ),
                            );