S2OJ/web/app/models/DropzoneForm.php

127 lines
3.3 KiB
PHP
Raw Normal View History

2023-02-02 02:29:29 +00:00
<?php
class DropzoneForm {
public static $default_dropzone_config = [
'params' => [],
'paramName' => 'file',
'maxFiles' => 100,
'dictDefaultMessage' => '想要上传文件?请把文件拖到这里',
'addRemoveLinks' => false,
'autoProcessQueue' => false,
'parallelUploads' => 100,
'uploadMultiple' => true
];
public string $name;
public string $url;
public ?string $succ_href;
public array $hidden_data = [];
public array $dropzone_config = [];
public array $dropzone_config_direct = [];
public array $submit_button_config = [];
public string $submit_condition = <<<EOD
function(dz) {
let files = dz.getQueuedFiles();
if (files.length < 1) {
dz.emit('errormultiple', files, '请提交至少一个文件');
return false;
}
return true;
}
EOD;
public string $introduction = '';
public $handler;
public $extra_validators = [];
function __construct(string $name, array $cfg = [], array $cfg_direct = []) {
requireLib('dropzone');
$this->name = $name;
$this->url = UOJContext::requestURI();
$this->succ_href = $this->url;
$this->dropzone_config = $cfg + self::$default_dropzone_config;
$this->dropzone_config['params'] += [
"submit-{$this->name}" => $this->name,
'_token' => crsf_token()
];
$this->dropzone_config_direct = $cfg_direct;
$this->submit_button_config += [
'text' => UOJLocale::get('submit')
];
$this->extra_validators[] = function () {
if ($this->dropzone_config['maxFiles'] !== null && count($_FILES) > $this->dropzone_config['maxFiles']) {
return '上传出错:你上传了太多文件了';
}
return '';
};
}
public function formID(): string {
return "form-{$this->name}";
}
public function divDropzoneID() {
return "{$this->formID()}-div-dropzone";
}
public function helpBlockID() {
return "{$this->formID()}-help-block";
}
public function getFile() {
assert(!$this->dropzone_config['uploadMultiple']);
return $_FILES[$this->dropzone_config['paramName']];
}
public function getFiles() {
assert($this->dropzone_config['uploadMultiple']);
if (!is_array($_FILES[$this->dropzone_config['paramName']]['name'])) {
UOJResponse::page406('好像上传出了点问题,再试试?');
}
$n = count($_FILES[$this->dropzone_config['paramName']]['name']);
$fields = ['name', 'type', 'tmp_name', 'error', 'size'];
$files = [];
for ($i = 0; $i < $n; $i++) {
$file = [];
foreach ($fields as $field) {
if (!isset($_FILES[$this->dropzone_config['paramName']][$field][$i])) {
UOJResponse::page406('好像上传出了点问题,再试试?');
}
$file[$field] = $_FILES[$this->dropzone_config['paramName']][$field][$i];
}
if (isset($files[$file['name']])) {
UOJResponse::page406('上传的文件中出现了重复的文件名!');
}
if (!is_uploaded_file($file['tmp_name'])) {
UOJResponse::page406('好像文件没有成功传过来,再试试?');
}
$files[$file['name']] = $file;
}
return $files;
}
public function runAtServer() {
if (isset($_POST["submit-{$this->name}"]) && !empty($_FILES)) {
foreach ($this->extra_validators as $val) {
$err = $val();
$err === '' || UOJResponse::message($err);
}
($this->handler)($this);
}
}
public function printHTML() {
uojIncludeView('dropzone-form', ['form' => $this]);
}
}