mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-11-23 16:58:41 +00:00
549 lines
17 KiB
PHP
549 lines
17 KiB
PHP
<?php
|
||
|
||
class UOJRemoteProblem {
|
||
const USER_AGENT = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.0.0 Safari/537.36 S2OJ/3.1.0';
|
||
|
||
static $providers = [
|
||
'codeforces' => [
|
||
'name' => 'Codeforces',
|
||
'short_name' => 'CF',
|
||
'url' => 'https://codeforces.com',
|
||
'not_exists_texts' => [
|
||
'<th>Actions</th>',
|
||
'Statement is not available on English language',
|
||
'ограничение по времени на тест',
|
||
],
|
||
'languages' => ['C', 'C++', 'C++17', 'C++20', 'Java17', 'Pascal', 'Python2', 'Python3'],
|
||
'submit_type' => ['bot', 'my'],
|
||
],
|
||
'atcoder' => [
|
||
'name' => 'AtCoder',
|
||
'short_name' => 'AT',
|
||
'url' => 'https://atcoder.jp',
|
||
'not_exists_texts' => [
|
||
'Task not found',
|
||
'指定されたタスクが見つかりません',
|
||
],
|
||
'languages' => ['C', 'C++', 'Java11', 'Python3', 'Pascal'],
|
||
'submit_type' => ['bot'],
|
||
],
|
||
'uoj' => [
|
||
'name' => 'UniversalOJ',
|
||
'short_name' => 'UOJ',
|
||
'url' => 'https://uoj.ac',
|
||
'not_exist_texts' => [
|
||
'未找到该页面',
|
||
],
|
||
'languages' => ['C', 'C++03', 'C++11', 'C++', 'C++17', 'C++20', 'Python3', 'Python2.7', 'Java8', 'Java11', 'Java17', 'Pascal'],
|
||
'submit_type' => ['bot', 'my'],
|
||
],
|
||
'loj' => [
|
||
'name' => 'LibreOJ',
|
||
'short_name' => 'LOJ',
|
||
'url' => 'https://loj.ac',
|
||
'languages' => ['C', 'C++03', 'C++11', 'C++', 'C++17', 'C++20', 'Python3', 'Python2.7', 'Java17', 'Pascal'],
|
||
'submit_type' => ['bot', 'archive'],
|
||
],
|
||
'luogu' => [
|
||
'name' => '洛谷',
|
||
'short_name' => '洛谷',
|
||
'url' => 'https://www.luogu.com.cn',
|
||
'languages' => ['C', 'C++98', 'C++11', 'C++', 'C++17', 'C++20', 'Python3', 'Java8', 'Pascal'],
|
||
'submit_type' => ['my', 'archive'],
|
||
],
|
||
];
|
||
|
||
private static function curl_get($url) {
|
||
$curl = new Curl\Curl();
|
||
$curl->setUserAgent(static::USER_AGENT);
|
||
|
||
$res = retry_loop(function () use (&$curl, $url) {
|
||
$curl->get($url);
|
||
|
||
if ($curl->error) {
|
||
return false;
|
||
}
|
||
|
||
return [
|
||
'content-type' => $curl->responseHeaders['Content-Type'],
|
||
'response' => $curl->response,
|
||
];
|
||
});
|
||
|
||
return $res;
|
||
}
|
||
|
||
private static function getCodeforcesProblemUrl($id) {
|
||
if (str_starts_with($id, 'GYM')) {
|
||
return static::$providers['codeforces']['url'] . '/gym/' . preg_replace_callback('/GYM([1-9][0-9]{0,5})([A-Z][1-9]?)/', fn ($matches) => $matches[1] . '/problem/' . $matches[2], $id);
|
||
}
|
||
|
||
return static::$providers['codeforces']['url'] . '/problemset/problem/' . preg_replace_callback('/([1-9][0-9]{0,5})([A-Z][1-9]?)/', fn ($matches) => $matches[1] . '/' . $matches[2], $id);
|
||
}
|
||
|
||
private static function getAtcoderProblemUrl($id) {
|
||
return static::$providers['atcoder']['url'] . '/contests/' . preg_replace_callback('/(\w+)([a-z][1-9]?)/', function ($matches) {
|
||
$contest = str_replace('_', '', $matches[1]);
|
||
|
||
if (str_ends_with($matches[1], '_')) {
|
||
return "{$contest}/tasks/{$matches[1]}{$matches[2]}";
|
||
}
|
||
|
||
return "{$contest}/tasks/{$matches[1]}_{$matches[2]}";
|
||
}, $id);
|
||
}
|
||
|
||
private static function getUojProblemUrl($id) {
|
||
return static::$providers['uoj']['url'] . '/problem/' . $id;
|
||
}
|
||
|
||
private static function getLojProblemUrl($id) {
|
||
return static::$providers['loj']['url'] . '/p/' . $id;
|
||
}
|
||
|
||
private static function getLuoguProblemUrl($id) {
|
||
return static::$providers['luogu']['url'] . '/problem/' . $id;
|
||
}
|
||
|
||
private static function getCodeforcesProblemBasicInfoFromHtml($id, $html) {
|
||
$remote_provider = static::$providers['codeforces'];
|
||
|
||
$html = preg_replace('/\$\$\$/', '$', $html);
|
||
$dom = new \IvoPetkov\HTML5DOMDocument();
|
||
$dom->loadHTML($html);
|
||
|
||
$judgestatement = $dom->querySelector('html')->innerHTML;
|
||
|
||
foreach ($remote_provider['not_exists_texts'] as $text) {
|
||
if (str_contains($judgestatement, $text)) {
|
||
return null;
|
||
}
|
||
}
|
||
|
||
$statement_dom = $dom->querySelector('.problem-statement');
|
||
$title_prefix = str_starts_with($id, 'GYM') ? 'Gym' : 'CF';
|
||
$title = explode('. ', trim($statement_dom->querySelector('.title')->innerHTML))[1];
|
||
$title_id = str_starts_with($id, 'GYM') ? substr($id, 3) : $id;
|
||
$title = "【{$title_prefix}{$title_id}】{$title}";
|
||
$time_limit = intval(substr($statement_dom->querySelector('.time-limit')->innerHTML, 53));
|
||
$memory_limit = intval(substr($statement_dom->querySelector('.memory-limit')->innerHTML, 55));
|
||
$difficulty = -1;
|
||
|
||
foreach ($dom->querySelectorAll('.tag-box') as &$elem) {
|
||
$matches = [];
|
||
|
||
if (preg_match('/\*([0-9]{3,4})/', trim($elem->innerHTML), $matches)) {
|
||
$difficulty = intval($matches[1]);
|
||
|
||
break;
|
||
}
|
||
}
|
||
|
||
if ($difficulty != -1) {
|
||
$closest = null;
|
||
|
||
foreach (UOJProblem::$difficulty as $val) {
|
||
if ($closest === null || abs($val - $difficulty) < abs($closest - $difficulty)) {
|
||
$closest = $val;
|
||
}
|
||
}
|
||
|
||
$difficulty = $closest;
|
||
}
|
||
|
||
$statement_dom->removeChild($statement_dom->querySelector('.header'));
|
||
$statement_dom->childNodes->item(0)->insertBefore($dom->createElement('h3', 'Description'), $statement_dom->childNodes->item(0)->childNodes->item(0));
|
||
|
||
foreach ($statement_dom->querySelectorAll('.section-title') as &$elem) {
|
||
$elem->outerHTML = '<h3>' . $elem->innerHTML . '</h3>';
|
||
}
|
||
|
||
$sample_input_cnt = 0;
|
||
$sample_output_cnt = 0;
|
||
|
||
foreach ($statement_dom->querySelectorAll('.input') as &$input_dom) {
|
||
$sample_input_cnt++;
|
||
$input_text = '';
|
||
|
||
if ($input_dom->querySelector('.test-example-line')) {
|
||
foreach ($input_dom->querySelectorAll('.test-example-line') as &$line) {
|
||
$input_text .= HTML::stripTags($line->innerHTML) . "\n";
|
||
}
|
||
} else {
|
||
$input_text = $input_dom->querySelector('pre')->innerHTML;
|
||
$input_text = preg_replace('/<br>/', "\n", $input_text);
|
||
$input_text = HTML::stripTags($input_text);
|
||
}
|
||
|
||
$input_dom->outerHTML = HTML::tag('h4', [], "Input #{$sample_input_cnt}") . HTML::tag('pre', [], HTML::tag('code', [], trim($input_text)));
|
||
}
|
||
|
||
foreach ($statement_dom->querySelectorAll('.output') as &$output_dom) {
|
||
$sample_output_cnt++;
|
||
$output_text = '';
|
||
|
||
if ($output_dom->querySelector('.test-example-line')) {
|
||
foreach ($output_dom->querySelectorAll('.test-example-line') as &$line) {
|
||
$output_text .= HTML::stripTags($line->innerHTML) . "\n";
|
||
}
|
||
} else {
|
||
$output_text = $output_dom->querySelector('pre')->innerHTML;
|
||
$output_text = preg_replace('/<br>/', "\n", $output_text);
|
||
$output_text = HTML::stripTags($output_text);
|
||
}
|
||
|
||
$output_dom->outerHTML = HTML::tag('h4', [], "Output #{$sample_output_cnt}") . HTML::tag('pre', [], HTML::tag('code', [], trim($output_text)));
|
||
}
|
||
|
||
return [
|
||
'type' => 'html',
|
||
'title' => $title,
|
||
'time_limit' => $time_limit,
|
||
'memory_limit' => $memory_limit,
|
||
'difficulty' => $difficulty,
|
||
'statement' => $statement_dom->innerHTML,
|
||
];
|
||
}
|
||
|
||
private static function getCodeforcesProblemBasicInfo($id) {
|
||
$res = static::curl_get(static::getCodeforcesProblemUrl($id));
|
||
|
||
if (!$res) return null;
|
||
|
||
if (str_starts_with($res['content-type'], 'text/html')) {
|
||
return static::getCodeforcesProblemBasicInfoFromHtml($id, $res['response']);
|
||
} else if (str_starts_with($res['content-type'], 'application/pdf')) {
|
||
$title_prefix = str_starts_with($id, 'GYM') ? 'Gym' : 'CF';
|
||
$title_id = str_starts_with($id, 'GYM') ? substr($id, 3) : $id;
|
||
$title = "【{$title_prefix}{$title_id}】{$title_prefix}{$title_id}";
|
||
|
||
return [
|
||
'type' => 'pdf',
|
||
'title' => $title,
|
||
'time_limit' => null,
|
||
'memory_limit' => null,
|
||
'difficulty' => -1,
|
||
'pdf_data' => $res['response'],
|
||
'statement' => HTML::tag('h3', [], '提示') .
|
||
HTML::tag(
|
||
'p',
|
||
[],
|
||
'若无法正常加载 PDF，请' .
|
||
HTML::tag('a', ['href' => static::getCodeforcesProblemUrl($id), 'target' => '_blank'], '点此') .
|
||
'查看原题面。'
|
||
),
|
||
];
|
||
} else {
|
||
return null;
|
||
}
|
||
}
|
||
|
||
private static function getAtcoderProblemBasicInfo($id) {
|
||
$res = static::curl_get(static::getAtcoderProblemUrl($id));
|
||
|
||
if (!$res) return null;
|
||
|
||
$dom = new \IvoPetkov\HTML5DOMDocument();
|
||
$dom->loadHTML($res['response']);
|
||
$container_dom = $dom->querySelectorAll('#main-container > div.row > div.col-sm-12')->item(1);
|
||
|
||
if (!$container_dom) return null;
|
||
|
||
$title_dom = $container_dom->querySelector('span.h2');
|
||
$title = '【' . strtoupper($id) . '】' . preg_replace('/([A-Z][1-9]?) - (.*)/', '$2', explode("\n", trim($title_dom->textContent))[0]);
|
||
|
||
$limit_dom = $container_dom->querySelector('p');
|
||
|
||
$time_limit_matches = [];
|
||
preg_match('/Time Limit: (\d+)/', $limit_dom->textContent, $time_limit_matches);
|
||
$time_limit = intval($time_limit_matches[1]);
|
||
|
||
$memory_limit_matches = [];
|
||
preg_match('/Memory Limit: (\d+)/', $limit_dom->textContent, $memory_limit_matches);
|
||
$memory_limit = intval($memory_limit_matches[1]);
|
||
|
||
$statement_container_dom = $container_dom->querySelector('#task-statement');
|
||
$statement_dom = $statement_container_dom->querySelector('.lang-en');
|
||
|
||
if (!$statement_dom) {
|
||
$statement_dom = $statement_container_dom->querySelector('.lang-ja');
|
||
}
|
||
|
||
$statement_first_child = $statement_dom->querySelector('p');
|
||
$first_child_content = trim($statement_first_child->textContent);
|
||
|
||
if (str_starts_with($first_child_content, 'Score :') || str_starts_with($first_child_content, '配点 :')) {
|
||
$statement_dom->removeChild($statement_first_child);
|
||
}
|
||
|
||
foreach ($statement_dom->querySelectorAll('var') as &$elem) {
|
||
$html = $elem->innerHTML;
|
||
|
||
// <sub> => _{
|
||
$html = str_replace('<sub>', '_{', $html);
|
||
|
||
// </sub> => }
|
||
$html = str_replace('</sub>', '}', $html);
|
||
|
||
// <sup> => ^{
|
||
$html = str_replace('<sup>', '^{', $html);
|
||
|
||
// </sup> => }
|
||
$html = str_replace('</sup>', '}', $html);
|
||
|
||
$elem->innerHTML = $html;
|
||
}
|
||
|
||
$statement = $statement_dom->innerHTML;
|
||
|
||
// <var> => $
|
||
$statement = str_replace('<var>', '\\(', $statement);
|
||
|
||
// </var> => $
|
||
$statement = str_replace('</var>', '\\)', $statement);
|
||
|
||
return [
|
||
'type' => 'html',
|
||
'title' => $title,
|
||
'time_limit' => $time_limit,
|
||
'memory_limit' => $memory_limit,
|
||
'difficulty' => -1,
|
||
'statement' => $statement,
|
||
];
|
||
}
|
||
|
||
private static function getUojProblemBasicInfo($id) {
|
||
$remote_provider = static::$providers['uoj'];
|
||
$res = static::curl_get(static::getUojProblemUrl($id));
|
||
|
||
if (!$res) return null;
|
||
|
||
$dom = new \IvoPetkov\HTML5DOMDocument();
|
||
$dom->loadHTML($res['response']);
|
||
|
||
$title_dom = $dom->querySelector('.page-header');
|
||
$title_matches = [];
|
||
preg_match('/^#[1-9][0-9]*\. (.*)$/', trim($title_dom->textContent), $title_matches);
|
||
$title = "【{$remote_provider['short_name']}{$id}】{$title_matches[1]}";
|
||
|
||
$statement_dom = $dom->querySelector('.uoj-article');
|
||
$statement = HTML::tag('h3', [], '题目描述');
|
||
|
||
foreach ($statement_dom->querySelectorAll('a') as &$elem) {
|
||
$href = $elem->getAttribute('href');
|
||
$href = getAbsoluteUrl($href, $remote_provider['url']);
|
||
$elem->setAttribute('href', $href);
|
||
}
|
||
|
||
$statement .= $statement_dom->innerHTML;
|
||
|
||
return [
|
||
'type' => 'html',
|
||
'title' => $title,
|
||
'time_limit' => null,
|
||
'memory_limit' => null,
|
||
'difficulty' => -1,
|
||
'statement' => $statement,
|
||
];
|
||
}
|
||
|
||
private static function getLojProblemBasicInfo($id) {
|
||
$remote_provider = static::$providers['loj'];
|
||
$curl = new Curl\Curl();
|
||
$curl->setUserAgent(static::USER_AGENT);
|
||
$curl->setHeader('Content-Type', 'application/json');
|
||
|
||
$res = retry_loop(function () use (&$curl, $id) {
|
||
$curl->post('https://api.loj.ac.cn/api/problem/getProblem', json_encode([
|
||
'displayId' => (int)$id,
|
||
'localizedContentsOfLocale' => 'zh_CN',
|
||
'samples' => true,
|
||
'judgeInfo' => true,
|
||
]));
|
||
|
||
if ($curl->error) {
|
||
return false;
|
||
}
|
||
|
||
return $curl->response;
|
||
});
|
||
|
||
if (!$res) return null;
|
||
|
||
// Convert stdClass to array
|
||
$res = json_decode(json_encode($res), true);
|
||
|
||
if (isset($res['error'])) return null;
|
||
|
||
$localized_contents = $res['localizedContentsOfLocale'];
|
||
$statement = '';
|
||
|
||
foreach ($localized_contents['contentSections'] as $section) {
|
||
$statement .= "\n###" . $section['sectionTitle'] . "\n\n";
|
||
|
||
if ($section['type'] === 'Text') {
|
||
$statement .= $section['text'] . "\n";
|
||
} else if ($section['type'] === 'Sample') {
|
||
// assert($res['samples'][$section['sampleId']]);
|
||
$display_sample_id = $section['sampleId'] + 1;
|
||
$sample = $res['samples'][$section['sampleId']];
|
||
|
||
$statement .= "\n#### 样例输入 #{$display_sample_id}\n\n";
|
||
$statement .= "\n```text\n{$sample['inputData']}\n```\n\n";
|
||
|
||
$statement .= "\n#### 样例输出 #{$display_sample_id}\n\n";
|
||
$statement .= "\n```text\n{$sample['outputData']}\n```\n\n";
|
||
|
||
if (trim($section['text'])) {
|
||
$statement .= "\n#### 样例解释 #{$display_sample_id}\n\n";
|
||
$statement .= $section['text'] . "\n";
|
||
}
|
||
} else {
|
||
// do nothing...
|
||
}
|
||
}
|
||
|
||
return [
|
||
'type' => 'html',
|
||
'title' => "【{$remote_provider['short_name']}{$id}】{$localized_contents['title']}",
|
||
'time_limit' => (float)$res['judgeInfo']['timeLimit'] / 1000.0,
|
||
'memory_limit' => $res['judgeInfo']['memoryLimit'],
|
||
'difficulty' => -1,
|
||
'statement' => HTML::parsedown()->text($statement),
|
||
];
|
||
}
|
||
|
||
private static function getLuoguProblemBasicInfo($id) {
|
||
$remote_provider = static::$providers['luogu'];
|
||
$res = static::curl_get(static::getLuoguProblemUrl($id) . '?_contentOnly=1');
|
||
|
||
if (!$res) return null;
|
||
|
||
// Convert stdClass to array
|
||
$res = json_decode(json_encode($res['response']), true);
|
||
|
||
if (!isset($res['code']) || $res['code'] != 200) return null;
|
||
|
||
$problem = $res['currentData']['problem'];
|
||
$statement = '';
|
||
|
||
if ($problem['background']) {
|
||
$statement .= "\n### 题目背景\n\n";
|
||
$statement .= $problem['background'] . "\n";
|
||
}
|
||
|
||
$statement .= "\n### 题目描述\n\n";
|
||
$statement .= $problem['description'] . "\n";
|
||
|
||
$statement .= "\n### 输入格式\n\n";
|
||
$statement .= $problem['inputFormat'] . "\n";
|
||
|
||
$statement .= "\n### 输出格式\n\n";
|
||
$statement .= $problem['outputFormat'] . "\n";
|
||
|
||
$statement .= "\n### 输入输出样例\n\n";
|
||
|
||
foreach ($problem['samples'] as $id => $sample) {
|
||
$display_sample_id = $id + 1;
|
||
|
||
$statement .= "\n#### 样例输入 #{$display_sample_id}\n\n";
|
||
$statement .= "\n```text\n{$sample[0]}\n```\n\n";
|
||
|
||
$statement .= "\n#### 样例输出 #{$display_sample_id}\n\n";
|
||
$statement .= "\n```text\n{$sample[1]}\n```\n\n";
|
||
}
|
||
|
||
$statement .= "\n### 说明/提示\n\n";
|
||
$statement .= $problem['hint'] . "\n";
|
||
|
||
return [
|
||
'type' => 'html',
|
||
'title' => "【{$remote_provider['short_name']}{$problem['pid']}】{$problem['title']}",
|
||
'time_limit' => (float)max($problem['limits']['time']) / 1000.0,
|
||
'memory_limit' => (float)max($problem['limits']['memory']) / 1024.0,
|
||
'difficulty' => -1,
|
||
'statement' => HTML::parsedown()->text($statement),
|
||
];
|
||
}
|
||
|
||
public static function getSubmissionRequirements($oj) {
|
||
$remote_provider = UOJRemoteProblem::$providers[$oj];
|
||
|
||
return [
|
||
[
|
||
"name" => "answer",
|
||
"type" => "source code",
|
||
"file_name" => "answer.code",
|
||
"languages" => $remote_provider['languages'],
|
||
]
|
||
];
|
||
}
|
||
|
||
public static function getProblemRemoteUrl($oj, $id) {
|
||
if ($oj === 'codeforces') {
|
||
return static::getCodeforcesProblemUrl($id);
|
||
} else if ($oj === 'atcoder') {
|
||
return static::getAtcoderProblemUrl($id);
|
||
} else if ($oj === 'uoj') {
|
||
return static::getUojProblemUrl($id);
|
||
} else if ($oj === 'loj') {
|
||
return static::getLojProblemUrl($id);
|
||
} else if ($oj === 'luogu') {
|
||
return static::getLuoguProblemUrl($id);
|
||
}
|
||
|
||
return null;
|
||
}
|
||
|
||
// 传入 ID 需确保有效
|
||
public static function getProblemBasicInfo($oj, $id) {
|
||
if ($oj === 'codeforces') {
|
||
return static::getCodeforcesProblemBasicInfo($id);
|
||
} else if ($oj === 'atcoder') {
|
||
return static::getAtcoderProblemBasicInfo($id);
|
||
} else if ($oj === 'uoj') {
|
||
return static::getUojProblemBasicInfo($id);
|
||
} else if ($oj === 'loj') {
|
||
return static::getLojProblemBasicInfo($id);
|
||
} else if ($oj === 'luogu') {
|
||
return static::getLuoguProblemBasicInfo($id);
|
||
}
|
||
|
||
return null;
|
||
}
|
||
|
||
public static function downloadImagesInRemoteContent($problem_id) {
|
||
$curl = new Curl\Curl();
|
||
$curl->setUserAgent(static::USER_AGENT);
|
||
$curl->setRetry(5);
|
||
|
||
$problem = UOJProblem::query($problem_id);
|
||
|
||
if ($problem->info['type'] != 'remote') return;
|
||
|
||
$remote_provider = static::$providers[$problem->getExtraConfig('remote_online_judge')];
|
||
$remote_content = $problem->queryContent()['remote_content'];
|
||
|
||
$dom = new IvoPetkov\HTML5DOMDocument();
|
||
$dom->loadHTML($remote_content);
|
||
|
||
foreach ($dom->querySelectorAll('img') as &$elem) {
|
||
$src = $elem->getAttribute('src');
|
||
$url = getAbsoluteUrl($src, $remote_provider['url']);
|
||
$filename = 'remote_image_' . hash('md5', $url);
|
||
$curl->download($url, $problem->getResourcesPath($filename));
|
||
$elem->setAttribute('src', $problem->getResourcesUri($filename));
|
||
}
|
||
|
||
DB::update([
|
||
"update problems_contents",
|
||
"set", [
|
||
"remote_content" => HTML::purifier(['a' => ['target' => 'Enum#_blank']])->purify($dom->saveHTML()),
|
||
],
|
||
"where", [
|
||
"id" => $problem->info['id'],
|
||
],
|
||
]);
|
||
}
|
||
}
|