mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-12-23 19:11:53 +00:00
247 lines
6.9 KiB
PHP
247 lines
6.9 KiB
PHP
<?php
|
||
|
||
class UOJBlogEditor {
|
||
public $type = 'blog';
|
||
public $name;
|
||
public $blog_url;
|
||
public $save;
|
||
public $cur_data = array();
|
||
public $post_data = array();
|
||
public $show_editor = true;
|
||
public $show_tags = true;
|
||
|
||
public $label_text = array(
|
||
'title' => '标题',
|
||
'tags' => '标签（多个标签用逗号隔开）',
|
||
'content' => '内容',
|
||
'view blog' => '查看博客',
|
||
'blog visibility' => '博客可见性',
|
||
'private' => '未公开',
|
||
'public' => '公开'
|
||
);
|
||
|
||
public $validator = array();
|
||
|
||
function __construct() {
|
||
global $REQUIRE_LIB;
|
||
$REQUIRE_LIB['blog-editor'] = '';
|
||
|
||
$this->validator = array(
|
||
'title' => function(&$title) {
|
||
if ($title == '') {
|
||
return '标题不能为空';
|
||
}
|
||
if (strlen($title) > 100) {
|
||
return '标题不能超过 100 个字节';
|
||
}
|
||
if (HTML::escape($title) === '') {
|
||
return '无效编码';
|
||
}
|
||
return '';
|
||
},
|
||
'content_md' => function(&$content_md) {
|
||
if (strlen($content_md) > 1000000) {
|
||
return '内容过长';
|
||
}
|
||
return '';
|
||
},
|
||
'tags' => function(&$tags) {
|
||
$tags = str_replace('，', ',', $tags);
|
||
$tags_raw = explode(',', $tags);
|
||
if (count($tags_raw) > 10) {
|
||
return '标签个数不能超过10';
|
||
}
|
||
$tags = array();
|
||
foreach ($tags_raw as $tag) {
|
||
$tag = trim($tag);
|
||
if (strlen($tag) == 0) {
|
||
continue;
|
||
}
|
||
if (strlen($tag) > 30) {
|
||
return '标签 “' . HTML::escape($tag) .'” 太长';
|
||
}
|
||
if (in_array($tag, $tags, true)) {
|
||
return '标签 “' . HTML::escape($tag) .'” 重复出现';
|
||
}
|
||
$tags[] = $tag;
|
||
}
|
||
return '';
|
||
}
|
||
);
|
||
}
|
||
|
||
public function validate($name) {
|
||
if (!isset($_POST["{$this->name}_{$name}"])) {
|
||
return '不能为空';
|
||
}
|
||
$this->post_data[$name] = $_POST["{$this->name}_{$name}"];
|
||
$val = $this->validator[$name];
|
||
return $val($this->post_data[$name]);
|
||
}
|
||
private function receivePostData() {
|
||
$errors = array();
|
||
|
||
$keys = array('title');
|
||
if ($this->show_tags) {
|
||
$keys[] = 'tags';
|
||
}
|
||
if ($this->show_editor) {
|
||
$keys[] = 'content_md';
|
||
}
|
||
foreach ($keys as $name) {
|
||
$cur_err = $this->validate($name);
|
||
if ($cur_err) {
|
||
$errors[$name] = $cur_err;
|
||
}
|
||
}
|
||
if ($errors) {
|
||
die(json_encode($errors));
|
||
}
|
||
crsf_defend();
|
||
|
||
$this->post_data['is_hidden'] = isset($_POST["{$this->name}_is_hidden"]) ? 1 : 0;
|
||
|
||
$purifier = HTML::pruifier();
|
||
|
||
$this->post_data['title'] = HTML::escape($this->post_data['title']);
|
||
|
||
if ($this->show_editor) {
|
||
if ($this->type == 'blog') {
|
||
$content_md = $_POST[$this->name . '_content_md'];
|
||
try {
|
||
$v8 = new V8Js('POST');
|
||
$v8->content_md = $this->post_data['content_md'];
|
||
$v8->executeString(file_get_contents($_SERVER['DOCUMENT_ROOT'] . '/js/marked.js'), 'marked.js');
|
||
$this->post_data['content'] = $v8->executeString('marked(POST.content_md)');
|
||
} catch (V8JsException $e) {
|
||
die(json_encode(array('content_md' => '未知错误')));
|
||
}
|
||
|
||
if (preg_match('/^.*<!--.*readmore.*-->.*$/m', $this->post_data['content'], $matches, PREG_OFFSET_CAPTURE)) {
|
||
$content_less = substr($this->post_data['content'], 0, $matches[0][1]);
|
||
$content_more = substr($this->post_data['content'], $matches[0][1] + strlen($matches[0][0]));
|
||
$this->post_data['content'] = $purifier->purify($content_less).'<!-- readmore -->'.$purifier->purify($content_more);
|
||
} else {
|
||
$this->post_data['content'] = $purifier->purify($this->post_data['content']);
|
||
}
|
||
} elseif ($this->type == 'slide') {
|
||
$content_array = yaml_parse($this->post_data['content_md']);
|
||
if ($content_array === false || !is_array($content_array)) {
|
||
die(json_encode(array('content_md' => '不合法的 YAML 格式')));
|
||
}
|
||
|
||
try {
|
||
$v8 = new V8Js('PHP');
|
||
$v8->executeString(file_get_contents($_SERVER['DOCUMENT_ROOT'] . '/js/marked.js'), 'marked.js');
|
||
$v8->executeString(<<<EOD
|
||
marked.setOptions({
|
||
getLangClass: function(lang) {
|
||
lang = lang.toLowerCase();
|
||
switch (lang) {
|
||
case 'c': return 'c';
|
||
case 'c++': return 'cpp';
|
||
case 'pascal': return 'pascal';
|
||
default: return lang;
|
||
}
|
||
},
|
||
getElementClass: function(tok) {
|
||
switch (tok.type) {
|
||
case 'list_item_start':
|
||
return 'fragment';
|
||
case 'loose_item_start':
|
||
return 'fragment';
|
||
default:
|
||
return null;
|
||
}
|
||
}
|
||
})
|
||
EOD
|
||
);
|
||
} catch (V8JsException $e) {
|
||
die(json_encode(array('content_md' => '未知错误')));
|
||
}
|
||
|
||
$marked = function($md) use ($v8, $purifier) {
|
||
try {
|
||
$v8->md = $md;
|
||
return $purifier->purify($v8->executeString('marked(PHP.md)'));
|
||
} catch (V8JsException $e) {
|
||
die(json_encode(array('content_md' => '未知错误')));
|
||
}
|
||
};
|
||
|
||
$config = array();
|
||
$this->post_data['content'] = '';
|
||
foreach ($content_array as $slide_name => $slide_content) {
|
||
if (is_array($slide_content) && is_array($slide_content['config'])) {
|
||
foreach (array('theme') as $config_key) {
|
||
if (is_string($slide_content['config'][$config_key]) && strlen($slide_content['config'][$config_key]) <= 30) {
|
||
$config[$config_key] = $slide_content['config'][$config_key];
|
||
}
|
||
}
|
||
continue;
|
||
}
|
||
|
||
$this->post_data['content'] .= '<section>';
|
||
|
||
if (is_string($slide_content)) {
|
||
$this->post_data['content'] .= $marked($slide_content);
|
||
} elseif (is_array($slide_content)) {
|
||
if (is_array($slide_content['children'])) {
|
||
foreach ($slide_content['children'] as $cslide_name => $cslide_content) {
|
||
$this->post_data['content'] .= '<section>';
|
||
$this->post_data['content'] .= $marked($cslide_content);
|
||
$this->post_data['content'] .= '</section>';
|
||
}
|
||
}
|
||
}
|
||
$this->post_data['content'] .= "</section>\n";
|
||
}
|
||
$this->post_data['content'] = json_encode($config) . "\n" . $this->post_data['content'];
|
||
}
|
||
}
|
||
}
|
||
|
||
public function handleSave() {
|
||
$save = $this->save;
|
||
$this->receivePostData();
|
||
$ret = $save($this->post_data);
|
||
if (!$ret) {
|
||
$ret = array();
|
||
}
|
||
|
||
if (isset($_POST['need_preview'])) {
|
||
ob_start();
|
||
if ($this->type == 'blog') {
|
||
echoUOJPageHeader('博客预览', array('ShowPageHeader' => false, 'REQUIRE_LIB' => array('mathjax' => '', 'shjs' => '')));
|
||
echo '<link rel="stylesheet" type="text/css" href="' . HTML::url('/css/markdown.css') . '">';
|
||
echo '<article class="markdown-body">';
|
||
echo $this->post_data['content'];
|
||
echo '</article>';
|
||
echoUOJPageFooter(array('ShowPageFooter' => false));
|
||
} elseif ($this->type == 'slide') {
|
||
uojIncludeView('slide', array_merge(
|
||
UOJContext::pageConfig(),
|
||
array(
|
||
'PageTitle' => '幻灯片预览',
|
||
'content' => $this->post_data['content']
|
||
)
|
||
));
|
||
}
|
||
$ret['html'] = ob_get_contents();
|
||
ob_end_clean();
|
||
}
|
||
|
||
die(json_encode($ret));
|
||
}
|
||
|
||
public function runAtServer() {
|
||
if (isset($_POST["save-{$this->name}"])) {
|
||
$this->handleSave();
|
||
}
|
||
}
|
||
public function printHTML() {
|
||
uojIncludeView('blog-editor', array('editor' => $this));
|
||
}
|
||
}
|