Title: Upload File Restriction
Last modified: September 1, 2016

---

# Upload File Restriction

 *  [Mayank](https://wordpress.org/support/users/_mayank_/)
 * (@_mayank_)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/upload-file-restriction/)
 * This is the upload file code and i want users to upload only PDF file.
    Can anybody
   help ??
 *     ```
       <?php
       /**
        * File Upload field
        */
       class Product_Addon_Field_File_Upload extends Product_Addon_Field {
   
       	/**
       	 * Validate an addon
       	 * @return bool pass, or WP_Error
       	 */
       	public function validate() {
       		if ( ! empty( $this->addon['required'] ) ) {
       			foreach ( $this->addon['options'] as $option ) {
       				$field_name = $this->get_field_name() . '-' . sanitize_title( $option['label'] );
   
       				if ( empty( $_FILES[ $field_name ] ) || empty( $_FILES[ $field_name ]['name'] ) ) {
       					return new WP_Error( 'error', sprintf( __( '"%s" ist ein Pflichtfeld.', 'woocommerce-product-addons' ), $this->addon['name'] ) );
       				}
       			}
       		}
       		return true;
       	}
   
       	/**
       	 * Process this field after being posted
       	 * @return array on success, WP_ERROR on failure
       	 */
       	public function get_cart_item_data() {
       		$cart_item_data           = array();
   
       		foreach ( $this->addon['options'] as $option ) {
   
       			$field_name = $this->get_field_name() . '-' . sanitize_title( $option['label'] );
   
       			if ( ! empty( $_FILES[ $field_name ] ) && ! empty( $_FILES[ $field_name ]['name'] ) ) {
       				$upload = $this->handle_upload( $_FILES[ $field_name ] );
       				if ( empty( $upload['error'] ) && ! empty( $upload['file'] ) ) {
       					$value  = woocommerce_clean( $upload['url'] );
   
       					$cart_item_data[] = array(
       						'name' 		=> $this->get_option_label( $option ),
       						'value'		=> $value,
       						'display'	=> basename( $value ),
       						'price' 	=> $this->get_option_price( $option )
       					);
       				} else {
       		    		return new WP_Error( 'addon-error', $upload['error'] );
       		    	}
       			} elseif ( isset( $this->value[ sanitize_title( $option['label'] ) ] ) ) {
       				$cart_item_data[] = array(
       					'name' 		=> $this->get_option_label( $option ),
       					'value'		=> $this->value[ sanitize_title( $option['label'] ) ],
       					'display'	=> basename( $this->value[ sanitize_title( $option['label'] ) ] ),
       					'price' 	=> $this->get_option_price( $option )
       				);
       			}
       		}
   
       		return $cart_item_data;
       	}
   
       	/**
       	 * Handle file upload
       	 * @param  string $file
       	 * @return array
       	 */
       	public function handle_upload( $file ) {
       		include_once( ABSPATH . 'wp-admin/includes/file.php' );
       		include_once( ABSPATH . 'wp-admin/includes/media.php' );
   
       		add_filter( 'upload_dir',  array( $this, 'upload_dir' ) );
   
       		$upload = wp_handle_upload( $file, array( 'test_form' => false ) );
   
       		remove_filter( 'upload_dir',  array( $this, 'upload_dir' ) );
   
       		return $upload;
       	}
   
       	/**
       	 * upload_dir function.
       	 *
       	 * @access public
       	 * @param mixed $pathdata
       	 * @return void
       	 */
       	public function upload_dir( $pathdata ) {
       		global $woocommerce;
   
       		if ( empty( $pathdata['subdir'] ) ) {
       			$pathdata['path']   = $pathdata['path'] . '/product_addons_uploads/' . md5( $woocommerce->session->get_customer_id() );
       			$pathdata['url']    = $pathdata['url']. '/product_addons_uploads/' . md5( $woocommerce->session->get_customer_id() );
       			$pathdata['subdir'] = '/product_addons_uploads/' . md5( $woocommerce->session->get_customer_id() );
       		} else {
       			$subdir             = '/product_addons_uploads/' . md5( $woocommerce->session->get_customer_id() );
       			$pathdata['path']   = str_replace( $pathdata['subdir'], $subdir, $pathdata['path'] );
       			$pathdata['url']    = str_replace( $pathdata['subdir'], $subdir, $pathdata['url'] );
       			$pathdata['subdir'] = str_replace( $pathdata['subdir'], $subdir, $pathdata['subdir'] );
       		}
   
       		return apply_filters( 'woocommerce_product_addons_upload_dir', $pathdata );
       	}
       }
       ```
   

The topic ‘Upload File Restriction’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 0 replies
 * 1 participant
 * Last reply from: [Mayank](https://wordpress.org/support/users/_mayank_/)
 * Last activity: [9 years, 11 months ago](https://wordpress.org/support/topic/upload-file-restriction/)
 * Status: not resolved

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