mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-11-10 11:18:42 +00:00
366 lines
9.5 KiB
PHP
366 lines
9.5 KiB
PHP
<?php
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class UOJForm {
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public $form_name;
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public $succ_href;
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public $back_href = null;
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public $no_submit = false;
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public $ctrl_enter_submit = false;
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public $extra_validator = null;
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public $is_big = false;
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public $has_file = false;
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public $ajax_submit_js = null;
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public $run_at_server_handler = [];
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private $data = [];
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private $vdata = [];
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private $main_html = '';
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public $max_post_size = 15728640; // 15M
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public $max_file_size_mb = 10; // 10M
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public $handle;
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public $config = [
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'container' => [
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'class' => '',
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],
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'submit_button' => [
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'class' => 'btn btn-secondary',
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],
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];
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public $submit_button_config = [];
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public $control_label_config = ['class' => 'col-sm-2'];
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public $input_config = ['class' => 'col-sm-3'];
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public $textarea_config = ['class' => 'col-sm-10'];
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public function __construct($form_name) {
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$this->form_name = $form_name;
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$this->succ_href = UOJContext::requestURI();
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$this->handle = function (&$vdata) {
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};
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$this->run_at_server_handler["check-{$this->form_name}"] = function () {
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die(json_encode($this->validateAtServer()));
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};
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$this->run_at_server_handler["submit-{$this->form_name}"] = function () {
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if ($this->no_submit) {
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UOJResponse::page404();
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}
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foreach ($this->data as $field) {
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if (!isset($field['no_val']) && !isset($_POST[$field['name']])) {
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UOJResponse::message('The form is incomplete.');
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}
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}
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if (UOJContext::requestMethod() == 'POST') {
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$len = UOJContext::contentLength();
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if ($len === null) {
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UOJResponse::page403();
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} elseif ($len > $this->max_post_size) {
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UOJResponse::message('The form is too large.');
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}
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}
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crsf_defend();
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$errors = $this->validateAtServer();
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if ($errors) {
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$err_str = '';
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foreach ($errors as $name => $err) {
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$esc_err = htmlspecialchars($err);
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$err_str .= "$name: $esc_err<br />";
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}
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UOJResponse::message($err_str);
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}
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$fun = $this->handle;
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$fun($this->vdata);
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if ($this->succ_href !== 'none') {
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redirectTo($this->succ_href);
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}
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die();
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};
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}
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public function setAjaxSubmit($js) {
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$GLOBALS['REQUIRE_LIB']['jquery.form'] = '';
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$this->ajax_submit_js = $js;
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}
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public function add($name, $html, $validator_php, $validator_js) {
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$this->main_html .= $html;
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$this->data[] = array(
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'name' => $name,
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'validator_php' => $validator_php,
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'validator_js' => $validator_js
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);
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}
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public function appendHTML($html) {
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$this->main_html .= $html;
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}
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public function addNoVal($name, $html) {
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$this->main_html .= $html;
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$this->data[] = array(
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'name' => $name,
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'validator_js' => 'always_ok',
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'no_val' => ''
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);
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}
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public function addHidden($name, $default_value, $validator_php, $validator_js) {
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$default_value = HTML::escape($default_value);
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$html = <<<EOD
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<input type="hidden" name="$name" id="input-$name" value="$default_value" />
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EOD;
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$this->add($name, $html, $validator_php, $validator_js);
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}
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public function printHTML() {
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$form_entype_str = $this->is_big ? ' enctype="multipart/form-data"' : '';
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echo '<form action="', $_SERVER['REQUEST_URI'], '" method="post" class="" id="form-', $this->form_name, '"', $form_entype_str, '>';
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echo HTML::hiddenToken();
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echo $this->main_html;
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if (!$this->no_submit) {
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if (!isset($this->submit_button_config['align'])) {
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$this->submit_button_config['align'] = 'center';
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}
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if (!isset($this->submit_button_config['text'])) {
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$this->submit_button_config['text'] = UOJLocale::get('submit');
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}
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if (!isset($this->submit_button_config['class_str'])) {
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$this->submit_button_config['class_str'] = 'btn btn-secondary';
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}
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if ($this->submit_button_config['align'] == 'offset') {
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echo '<div class="form-group">';
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echo '<div class="col-sm-offset-2 col-sm-3">';
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} else {
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echo '<div class="text-', $this->submit_button_config['align'], '">';
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}
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if ($this->back_href !== null) {
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echo '<div class="btn-toolbar">';
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}
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echo HTML::tag('button', [
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'type' => 'submit', 'id' => "button-submit-{$this->form_name}", 'name' => "submit-{$this->form_name}",
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'value' => $this->form_name, 'class' => $this->submit_button_config['class_str']
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], $this->submit_button_config['text']);
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if ($this->back_href !== null) {
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echo HTML::tag('a', [
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'class' => 'btn btn-secondary', 'href' => $this->back_href
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], '返回');
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}
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if ($this->back_href !== null) {
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echo '</div>';
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}
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if ($this->submit_button_config['align'] == 'offset') {
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echo '</div>';
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}
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echo '</div>';
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}
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echo '</form>';
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if ($this->no_submit) {
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return;
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}
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echo <<<EOD
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<script type="text/javascript">
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$(document).ready(function() {
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EOD;
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if ($this->ctrl_enter_submit) {
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echo <<<EOD
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$('#form-{$this->form_name}').keydown(function(e) {
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if (e.keyCode == 13 && e.ctrlKey) {
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$('#button-submit-{$this->form_name}').click();
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}
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});
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EOD;
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}
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echo <<<EOD
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$('#form-{$this->form_name}').submit(function(e) {
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var ok = true;
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EOD;
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$need_ajax = false;
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if ($this->extra_validator) {
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$need_ajax = true;
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}
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foreach ($this->data as $field) {
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if ($field['validator_js'] != null) {
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if ($field['validator_js'] != 'always_ok') {
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echo <<<EOD
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var {$field['name']}_err = ({$field['validator_js']})($('#input-{$field['name']}').val());
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EOD;
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}
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} else {
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$need_ajax = true;
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}
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}
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if ($need_ajax) {
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echo <<<EOD
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var post_data = {};
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EOD;
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foreach ($this->data as $field) {
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if ($field['validator_js'] == null) {
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echo <<<EOD
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var {$field['name']}_err = 'Unknown error';
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post_data.{$field['name']} = $('#input-{$field['name']}').val();
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EOD;
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}
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}
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echo <<<EOD
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post_data['check-{$this->form_name}'] = "";
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$.ajax({
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url : '{$_SERVER['REQUEST_URI']}',
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type : 'POST',
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dataType : 'json',
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async : false,
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data : post_data,
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success : function(data) {
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EOD;
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foreach ($this->data as $field) {
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if ($field['validator_js'] == null) {
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echo <<<EOD
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{$field['name']}_err = data.${field['name']};
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EOD;
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}
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}
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echo <<<EOD
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if (data.extra != undefined) {
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alert(data.extra);
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ok = false;
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}
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}
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});
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EOD;
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}
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foreach ($this->data as $field) {
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if ($field['validator_js'] != 'always_ok') {
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echo <<<EOD
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if (${field['name']}_err) {
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$('#div-${field['name']}').addClass('has-validation has-error');
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$('#div-${field['name']}').addClass('is-invalid');
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$('#input-${field['name']}').addClass('is-invalid');
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$('#help-${field['name']}').text(${field['name']}_err);
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ok = false;
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} else {
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$('#div-${field['name']}').removeClass('has-validation has-error');
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$('#div-${field['name']}').removeClass('is-invalid');
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$('#input-${field['name']}').removeClass('is-invalid');
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$('#help-${field['name']}').text('');
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}
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EOD;
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}
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}
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if (isset($this->submit_button_config['smart_confirm'])) {
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$this->submit_button_config['confirm_text'] = '你真的要' . $this->submit_button_config['text'] . '吗？';
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}
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if (isset($this->submit_button_config['confirm_text'])) {
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echo <<<EOD
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if (!confirm('{$this->submit_button_config['confirm_text']}')) {
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ok = false;
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}
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EOD;
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}
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if ($this->has_file) {
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echo <<<EOD
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$(this).find("input[type='file']").each(function() {
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for (var i = 0; i < this.files.length; i++) {
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if (this.files[i].size > {$this->max_file_size_mb} * 1024 * 1024) {
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$('#div-' + $(this).attr('name')).addClass('has-validation has-error');
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$('#div-' + $(this).attr('name')).addClass('is-invalid');
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$('#input-' + $(this).attr('name')).addClass('is-invalid');
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$('#help-' + $(this).attr('name')).text('文件大小不能超过{$this->max_file_size_mb}M');
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ok = false;
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} else {
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$('#div-' + $(this).attr('name')).removeClass('has-validation has-error');
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$('#div-' + $(this).attr('name')).removeClass('is-invalid');
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$('#input-' + $(this).attr('name')).removeClass('is-invalid');
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$('#help-' + $(this).attr('name')).text('');
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}
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}
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});
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EOD;
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}
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if ($this->ajax_submit_js !== null) {
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echo <<<EOD
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e.preventDefault();
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if (ok) {
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$(this).ajaxSubmit({
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beforeSubmit: function(formData) {
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formData.push({name: 'submit-{$this->form_name}', value: '{$this->form_name}', type: 'submit'});
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},
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success : {$this->ajax_submit_js}
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});
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}
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EOD;
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} else {
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echo <<<EOD
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return ok;
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EOD;
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}
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echo <<<EOD
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});
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});
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</script>
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EOD;
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}
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private function validateAtServer() {
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$errors = array();
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if ($this->extra_validator) {
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$fun = $this->extra_validator;
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$err = $fun();
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if ($err) {
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$errors['extra'] = $err;
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}
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}
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foreach ($this->data as $field) {
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if (!isset($field['no_val']) && isset($_POST[$field['name']])) {
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$fun = $field['validator_php'];
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$ret = $fun($_POST[$field['name']], $this->vdata, $field['name']);
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if (is_array($ret) && isset($ret['error'])) {
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$err = $ret['error'];
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} else {
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$err = $ret;
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}
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if ($err) {
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$errors[$field['name']] = $err;
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}
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if (is_array($ret) && isset($ret['store'])) {
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$this->vdata[$field['name']] = $ret['store'];
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}
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}
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}
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return $errors;
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}
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public function runAtServer() {
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foreach ($this->run_at_server_handler as $type => $handler) {
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if (isset($_POST[$type])) {
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$handler();
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}
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}
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}
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}
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