<?php
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/**
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* PhalApi_Request_Formatter_File 格式化上传文件
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* @package PhalApi\Request
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* @license http://www.phalapi.net/license GPL 协议
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* @link http://www.phalapi.net/
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* @author dogstar <chanzonghuang@gmail.com> 2015-11-07
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*/
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class PhalApi_Request_Formatter_File extends PhalApi_Request_Formatter_Base implements PhalApi_Request_Formatter {
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/**
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* 格式化文件类型
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*
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* @param array $rule array('name' => '', 'type' => 'file', 'default' => array(...), 'min' => '', 'max' => '', 'range' => array(...))
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*
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* @throws PhalApi_Exception_BadRequest
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*/
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public function parse($value, $rule) {
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$default = isset($rule['default']) ? $rule['default'] : NULL;
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$index = $rule['name'];
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$fileList = array();
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// 未上传 && (有默认值 || 非必须)
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if (!isset($_FILES[$index]) && ($default !== NULL || empty($rule['require']))) {
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return $default;
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}
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if (is_array($_FILES[$index]['tmp_name'])) {
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$count = sizeof($_FILES[$index]['tmp_name']);
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for ($i = 0; $i < $count; $i++) {
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$file = array(
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'name' => $_FILES[$index]['name'][$i],
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'type' => $_FILES[$index]['type'][$i],
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'tmp_name' => $_FILES[$index]['tmp_name'][$i],
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'error' => $_FILES[$index]['error'][$i],
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'size' => $_FILES[$index]['size'][$i]
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);
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$fileList[] = $this->parseOne($file, $rule);
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}
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} else {
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$file = array(
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'name' => $_FILES[$index]['name'],
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'type' => $_FILES[$index]['type'],
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'tmp_name' => $_FILES[$index]['tmp_name'],
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'error' => $_FILES[$index]['error'],
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'size' => $_FILES[$index]['size']
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);
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// 单个文件直接返回文件信息数组
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return $this->parseOne($file, $rule);
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}
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// 返回文件信息二维数组
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return $fileList;
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}
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protected function parseOne($file, $rule)
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{
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$index = $rule['name'];
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if (!isset($file) || !isset($file['error']) || !is_array($file)) {
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throw new PhalApi_Exception_BadRequest(T('miss upload file: {file}', array('file' => $index)));
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}
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if ($file['error'] != UPLOAD_ERR_OK) {
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throw new PhalApi_Exception_BadRequest(T('fail to upload file with error = {error}', array('error' => $file['error'])));
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}
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$sizeRule = $rule;
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$sizeRule['name'] = $sizeRule['name'] . '.size';
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$this->filterByRange($file['size'], $sizeRule);
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if (!empty($rule['range']) && is_array($rule['range'])) {
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$rule['range'] = array_map('strtolower', $rule['range']);
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$this->formatEnumValue(strtolower($file['type']), $rule);
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}
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//对于文件后缀进行验证
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if (!empty($rule['ext'])) {
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$ext = trim(strrchr($file['name'], '.'), '.');
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if (is_string($rule['ext'])) {
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$rule['ext'] = explode(',', $rule['ext']);
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}
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if (!$ext) {
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throw new PhalApi_Exception_BadRequest(T('Not the file type {ext}', array('ext' => json_encode($rule['ext']))));
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}
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if (is_array($rule['ext'])) {
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$rule['ext'] = array_map('strtolower', $rule['ext']);
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$rule['ext'] = array_map('trim', $rule['ext']);
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if (!in_array(strtolower($ext), $rule['ext'])) {
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throw new PhalApi_Exception_BadRequest(T('Not the file type {ext}', array('ext' => json_encode($rule['ext']))));
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}
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}
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}
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return $file;
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}
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}
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