S2OJ/web/app/models/HTML.php

558 lines
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PHP
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<?php
class HTML {
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public static function escape(?string $str, $cfg = []) {
if ($str === null) {
return '';
} else {
if (!empty($cfg['single_line'])) {
$str = str_replace(["\n", "\r"], '', $str);
}
return htmlspecialchars($str);
}
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}
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public static function unescape(?string $str) {
if ($str === null) {
return '';
} else {
return htmlspecialchars_decode($str);
}
}
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public static function stripTags($str) {
return strip_tags($str);
}
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public static function protocol(string $loc = 'main') {
if (UOJConfig::$data['web'][$loc]['protocol'] === 'http/https') {
if (UOJContext::isUsingHttps()) {
return 'https';
} else {
return 'http';
}
} else {
return UOJConfig::$data['web'][$loc]['protocol'];
}
}
public static function port(string $loc = 'main') {
if (UOJConfig::$data['web'][$loc]['port'] === '80/443') {
return HTML::standard_port(HTML::protocol($loc));
} else {
return UOJConfig::$data['web'][$loc]['port'];
}
}
public static function standard_port(string $protocol) {
if ($protocol === 'http') {
return 80;
} elseif ($protocol === 'https') {
return 443;
} else {
return null;
}
}
public static function attr($attr) {
$html = '';
foreach ($attr as $key => $val) {
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if ($val === null) continue;
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$html .= ' ' . $key . '="';
$html .= HTML::escape(is_array($val) ? implode(' ', $val) : $val);
$html .= '"';
}
return $html;
}
public static function tag_begin(string $name, array $attr = []) {
return '<' . $name . HTML::attr($attr) . '>';
}
public static function tag_end(string $name) {
return '</' . $name . '>';
}
public static function tag(string $name, array $attr, $content) {
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return HTML::tag_begin($name, $attr) . (is_array($content) ? implode('', $content) : $content) . HTML::tag_end($name);
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}
public static function empty_tag(string $name, array $attr) {
return '<' . $name . HTML::attr($attr) . ' />';
}
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public static function avatar_addr($user, $size) {
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$extra = UOJUser::getExtra($user);
if ($extra['avatar_source'] == 'qq' && $user['qq']) {
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$s = '5';
if ($size <= 40) {
$s = '2';
} elseif ($size <= 100) {
$s = '3';
} elseif ($size <= 140) {
$s = '4';
}
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return "https://q1.qlogo.cn/g?b=qq&nk={$user['qq']}&s=$s";
}
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return 'https://cravatar.cn/avatar/' . md5(strtolower(trim($user['email']))) . "?d=404&amp;s=$size";
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}
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public static function tablist($tabs_info, $cur, $type = 'nav-tabs') {
$html = HTML::tag_begin('ul', ['class' => "nav $type", 'role' => 'tablist']);
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foreach ($tabs_info as $id => $tab) {
$html .= HTML::tag('li', ['class' => 'nav-item'], HTML::tag('a', [
'class' => 'nav-link' . ($cur == $id ? ' active' : ''),
'href' => $tab['url'],
'role' => 'tab',
], $tab['name']));
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}
$html .= HTML::tag_end('ul');
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return $html;
}
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public static function navListGroup($tabs_info, $cur) {
$html = '<div class="list-group">';
foreach ($tabs_info as $id => $tab) {
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$html .= '<a role="button" class="list-group-item list-group-item-action' . ($cur == $id ? ' active' : '') . '" href="' . $tab['url'] . '">' . $tab['name'] . '</a>';
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}
$html .= '</div>';
return $html;
}
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public static function hiddenToken() {
return HTML::empty_tag('input', ['type' => 'hidden', 'name' => '_token', 'value' => crsf_token()]);
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}
public static function div_vinput($name, $type, $label_text, $default_value) {
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return '<div id="' . "div-$name" . '" class="mb-3">'
. '<label for="' . "input-$name" . '" class="control-label form-label">' . $label_text . '</label>'
. '<input type="' . $type . '" class="form-control" name="' . $name . '" id="' . "input-$name" . '" value="' . HTML::escape($default_value) . '" />'
. '<span class="help-block invalid-feedback" id="' . "help-$name" . '"></span>'
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. '</div>';
}
public static function div_vtextarea($name, $label_text, $default_value) {
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return '<div id="' . "div-$name" . '" class="mb-3">'
. '<label for="' . "input-$name" . '" class="control-label">' . $label_text . '</label>'
. '<textarea class="form-control" name="' . $name . '" id="' . "input-$name" . '">' . HTML::escape($default_value) . '</textarea>'
. '<span class="help-block" id="' . "help-$name" . '"></span>'
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. '</div>';
}
public static function checkbox($name, $default_value) {
$status = $default_value ? 'checked="checked" ' : '';
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return '<input class="form-check-input" type="checkbox" id="' . "input-$name" . '" name="' . $name . '" ' . $status . '/>';
}
public static function option($value, $text, $selected) {
return '<option value="' . HTML::escape($value) . '"'
. ($selected ? ' selected="selected"' : '') . '>'
. HTML::escape($text)
. '</option>';
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}
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public static function tr_none() {
return '<tr class="text-center"><td colspan="233">' . UOJLocale::get('none') . '</td></tr>';
}
public static function blog_url($username, $uri, array $cfg = []) {
$cfg += [
'escape' => true
];
switch (UOJConfig::$data['switch']['blog-domain-mode']) {
case 1:
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$port = ((UOJConfig::$data['web']['blog']['protocol'] === "http" && UOJConfig::$data['web']['blog']['port'] == 80) || (UOJConfig::$data['web']['blog']['protocol'] === "https" && UOJConfig::$data['web']['blog']['port'] == 443)) ? '' : (':' . UOJConfig::$data['web']['blog']['port']);
$url = UOJConfig::$data['web']['blog']['protocol'] . '://' . blog_name_encode($username) . '.' . UOJConfig::$data['web']['blog']['host'] . $port;
break;
case 2:
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$port = ((UOJConfig::$data['web']['blog']['protocol'] === "http" && UOJConfig::$data['web']['blog']['port'] == 80) || (UOJConfig::$data['web']['blog']['protocol'] === "https" && UOJConfig::$data['web']['blog']['port'] == 443)) ? '' : (':' . UOJConfig::$data['web']['blog']['port']);
$url = UOJConfig::$data['web']['blog']['protocol'] . '://' . UOJConfig::$data['web']['blog']['host'] . $port . '/' . blog_name_encode($username);
break;
case 3:
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$url = HTML::url('/blog/' . blog_name_encode($username));
break;
}
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$url .= $uri;
$url = rtrim($url, '/');
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if ($cfg['escape']) {
$url = HTML::escape($url);
}
return $url;
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}
public static function blog_list_url() {
switch (UOJConfig::$data['switch']['blog-domain-mode']) {
case 1:
case 2:
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$port = ((UOJConfig::$data['web']['blog']['protocol'] === "http" && UOJConfig::$data['web']['blog']['port'] == 80) || (UOJConfig::$data['web']['blog']['protocol'] === "https" && UOJConfig::$data['web']['blog']['port'] == 443)) ? '' : (':' . UOJConfig::$data['web']['blog']['port']);
$url = UOJConfig::$data['web']['blog']['protocol'] . '://' . UOJConfig::$data['web']['blog']['host'] . $port;
break;
case 3:
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$url = HTML::url('/blogs');
break;
}
return HTML::escape(rtrim($url, '/'));
}
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public static function url($uri, array $cfg = []) {
$cfg += [
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'location' => 'main',
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'params' => null,
'remove_all_params' => false,
'with_token' => false,
'escape' => true
];
if ($cfg['location'] == 'cdn' && !UOJContext::hasCDN()) {
$cfg['location'] = 'main';
}
if (strStartWith($uri, '?')) {
$path = strtok(UOJContext::requestURI(), '?');
$qs = strtok($uri, '?');
} else {
$path = strtok($uri, '?');
$qs = strtok('?');
}
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parse_str($qs, $param);
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if ($cfg['remove_all_params']) {
$param = [];
} elseif ($cfg['params'] != null) {
$param = array_merge($param, $cfg['params']);
}
if ($cfg['with_token']) {
$param['_token'] = crsf_token();
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}
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$protocol = HTML::protocol($cfg['location']);
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$url = $protocol . '://' . UOJConfig::$data['web'][$cfg['location']]['host'];
if (HTML::port($cfg['location']) != HTML::standard_port($protocol)) {
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$url .= ':' . HTML::port($cfg['location']);
}
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if ($param) {
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$url .= $path . '?' . HTML::query_string_encode($param);
} elseif ($path != '/') {
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$url .= rtrim($path, '/');
} else {
$url .= $path;
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}
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if ($cfg['escape']) {
$url = HTML::escape($url);
}
return $url;
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}
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public static function timeanddate_url(DateTime $time, array $cfg = []) {
$url = HTML::protocol() . '://';
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$url .= 'www.timeanddate.com/worldclock/fixedtime.html';
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$url .= '?' . 'iso=' . $time->format('Ymd\THi');
$url .= '&' . 'p1=33';
if (isset($cfg['duration']) && $cfg['duration'] < 3600) {
$url .= '&' . 'ah=' . floor($cfg['duration'] / 60);
if ($cfg['duration'] % 60 != 0) {
$url .= '&' . 'am=' . ($cfg['duration'] % 60);
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}
}
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return HTML::escape($url);
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}
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public static function relative_time_str($time, $gran = -1) {
$d = [
[1, 'seconds'],
[60, 'minutes'],
[3600, 'hours'],
[86400, 'days'],
[604800, 'weeks'],
[2592000, 'months'],
[31536000, 'years'],
];
$w = [];
$res = "";
$diff = time() - $time;
$secondsLeft = $diff;
$stopat = 0;
for ($i = 6; $i > $gran; $i--) {
$w[$i] = intval($secondsLeft / $d[$i][0]);
$secondsLeft -= ($w[$i] * $d[$i][0]);
if ($w[$i] != 0) {
$res .= UOJLocale::get('time::x ' . $d[$i][1], abs($w[$i])) . " ";
switch ($i) {
case 6: // shows years and months
if ($stopat == 0) {
$stopat = 5;
}
break;
case 5: // shows months and weeks
if ($stopat == 0) {
$stopat = 4;
}
break;
case 4: // shows weeks and days
if ($stopat == 0) {
$stopat = 3;
}
break;
case 3: // shows days and hours
if ($stopat == 0) {
$stopat = 2;
}
break;
case 2: // shows hours and minutes
if ($stopat == 0) {
$stopat = 1;
}
break;
case 1: // shows minutes and seconds if granularity is not set higher
break;
}
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if ($i <= $stopat) {
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break;
}
}
}
$res .= ($diff > 0) ? UOJLocale::get('time::ago') : UOJLocale::get('time::left');
return $res;
}
public static function link(?string $uri, $text, $cfg = []) {
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$cfg += ['location' => 'main', 'escape' => true, 'class' => ''];
if ($cfg['escape']) {
$text = HTML::escape($text);
}
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if ($uri === null) {
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return HTML::tag('a', ['class' => $cfg['class']], $text);
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}
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return HTML::tag('a', ['href' => HTML::url($uri, $cfg), 'class' => $cfg['class']], $text);
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}
public static function autolink(string $url, array $attr = [], $cfg = []) {
$cfg += ['escape' => true];
$text = $url;
if ($cfg['escape']) {
$text = HTML::escape($text);
}
return '<a href="' . $url . '"' . HTML::attr($attr) . '>' . $text . '</a>';
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}
public static function js_src(string $uri, array $cfg = []) {
$cfg += [
'location' => 'cdn',
'async' => false
];
$async = empty($cfg['async']) ? '' : 'async ';
return '<script ' . $async . 'src="' . HTML::url($uri, $cfg) . '"></script>';
}
public static function css_link(string $uri, $cfg = []) {
$cfg += ['location' => 'cdn'];
return '<link rel="stylesheet" href="' . HTML::url($uri, $cfg) . '" />';
}
public static function table($header, iterable $data, $cfg = []) {
mergeConfig($cfg, [
'th' => function ($c) {
return "<th>{$c}</th>";
},
'td' => function ($d) {
return "<td>{$d}</td>";
},
'tr' => false, // if tr is a function, then td and tr_attr is disabled
'empty' => 'HTML::tr_none',
'table_attr' => [
'class' => ['table'],
],
'thead_attr' => [],
'tbody_attr' => [],
'tr_attr' => function ($row, $idx) {
return [];
}
]);
$html = HTML::tag_begin('table', $cfg['table_attr']);
$html .= HTML::tag_begin('thead', $cfg['thead_attr']);
if (is_array($header)) {
$html .= '<tr>' . implode(' ', array_map($cfg['th'], array_values($header), array_keys($header))) . '</tr>';
} else {
$html .= $header;
}
$html .= HTML::tag_end('thead');
$html .= HTML::tag_begin('tbody', $cfg['tbody_attr']);
if (is_iterable($data)) {
$data_html = [];
if (is_callable($cfg['tr'])) {
foreach ($data as $idx => $row) {
$data_html[] = $cfg['tr']($row, $idx);
}
} else {
foreach ($data as $idx => $row) {
$data_html[] = HTML::tag_begin('tr', $cfg['tr_attr']($row, $idx));
if (is_array($row)) {
foreach ($row as $cidx => $c) {
$data_html[] = $cfg['td']($c, $cidx);
}
} else {
$data_html[] = $row;
}
$data_html[] = HTML::tag_end('tr');
}
}
$data_html = implode($data_html);
} else {
$data_html = $data;
}
$html .= $data_html !== '' ? $data_html : $cfg['empty']();
$html .= HTML::tag_end('tbody');
$html .= HTML::tag_end('table');
return $html;
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}
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public static function responsive_table($header, $data, $cfg = []) {
return HTML::tag_begin('div', ['class' => 'table-responsive']) . HTML::table($header, $data, $cfg) . HTML::tag_end('div');
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}
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public static function query_string_encode($q, $array_name = null) {
if (!is_array($q)) {
return false;
}
$r = array();
foreach ((array)$q as $k => $v) {
if ($array_name !== null) {
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if (is_numeric($k)) {
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$k = $array_name . "[]";
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} else {
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$k = $array_name . "[$k]";
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}
}
if (is_array($v) || is_object($v)) {
$r[] = self::query_string_encode($v, $k);
} else {
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$r[] = urlencode($k) . "=" . urlencode($v);
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}
}
return implode("&", $r);
}
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public static function purifier($extra_allowed_html = []) {
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$config = HTMLPurifier_Config::createDefault();
$config->set('Output.Newline', true);
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$def = $config->getHTMLDefinition(true);
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$def->addElement('section', 'Block', 'Flow', 'Common');
$def->addElement('nav', 'Block', 'Flow', 'Common');
$def->addElement('article', 'Block', 'Flow', 'Common');
$def->addElement('aside', 'Block', 'Flow', 'Common');
$def->addElement('header', 'Block', 'Flow', 'Common');
$def->addElement('footer', 'Block', 'Flow', 'Common');
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mergeConfig($extra_allowed_html, [
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'div' => [
'data-pdf' => 'Text',
'data-src' => 'URI',
],
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'span' => [
'class' => 'Enum#uoj-username',
'data-realname' => 'Text',
'data-color' => 'Color',
],
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'img' => ['width' => 'Text'],
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]);
foreach ($extra_allowed_html as $element => $attributes) {
foreach ($attributes as $attribute => $type) {
$def->addAttribute($element, $attribute, $type);
}
}
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return new HTMLPurifier($config);
}
public static function purifier_inline() {
$allowed_html = [
'a' => ['href' => 'URI'],
'b' => [],
'i' => [],
'u' => [],
's' => [],
'em' => [],
'strong' => [],
'sub' => [],
'sup' => [],
'small' => [],
'del' => [],
'br' => [],
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'span' => [
'class' => 'Enum#uoj-username',
'data-realname' => 'Text',
'data-color' => 'Color',
],
];
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$allowed_elements = [];
$allowed_attributes = [];
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foreach ($allowed_html as $element => $attributes) {
$allowed_elements[$element] = true;
foreach ($attributes as $attribute => $type) {
$allowed_attributes["$element.$attribute"] = true;
}
}
$config = HTMLPurifier_Config::createDefault();
$config->set('HTML.AllowedElements', $allowed_elements);
$config->set('HTML.AllowedAttributes', $allowed_attributes);
$def = $config->getHTMLDefinition(true);
foreach ($allowed_html as $element => $attributes) {
foreach ($attributes as $attribute => $type) {
$def->addAttribute($element, $attribute, $type);
}
}
return new HTMLPurifier($config);
}
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public static function parsedown($config = []) {
return new UOJMarkdown($config + [
'math' => [
'enabled' => true,
'matchSingleDollar' => true
]
]);
}
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public static function echoPanel($cls = [], $title, $body, $other = null) {
if (is_string($cls)) {
$cls = ['card' => $cls];
}
$cls += [
'card' => '',
'header' => '',
'body' => '',
];
echo '<div class="card ', $cls['card'], '">';
echo '<div class="card-header fw-bold ', $cls['header'], '">', $title, '</div>';
if ($body !== null) {
echo '<div class="card-body ', $cls['body'], '">';
if (is_string($body)) {
echo $body;
} else {
$body();
}
echo '</div>';
}
if ($other !== null) {
if (is_string($other)) {
echo $other;
} else {
$other();
}
}
echo '</div>';
}
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}