hasLogin()) {
$userId = $user->uid;
} else {
return Mirai_getDefaultAvatar();
}
}
if (!is_numeric($userId)) {
return Mirai_getDefaultAvatar();
}
$db = \Typecho\Db::get();
$user = $db->fetchRow($db->select('avatar')->from('table.users')->where('uid = ?', (int)$userId));
if (!empty($user['avatar'])) {
return Mirai_normalizeUrl($user['avatar']);
}
return Mirai_getDefaultAvatar();
}
function Mirai_uploadAvatar($file, $userId) {
if ($file['error'] !== UPLOAD_ERR_OK) {
return ['success' => false, 'message' => '上传失败，请重试'];
}
$allowedTypes = ['image/jpeg', 'image/png', 'image/gif', 'image/webp'];
$imageInfo = @getimagesize($file['tmp_name']);
if ($imageInfo === false) {
return ['success' => false, 'message' => '无法识别图片格式'];
}
$mimeType = $imageInfo['mime'];
$imageType = $imageInfo[2];
if (!in_array($mimeType, $allowedTypes)) {
return ['success' => false, 'message' => '仅支持 JPG、PNG、GIF、WebP 格式的图片'];
}
$maxSize = 2 * 1024 * 1024;
if ($file['size'] > $maxSize) {
return ['success' => false, 'message' => '图片大小不能超过 2MB'];
}
$uploadDir = __TYPECHO_ROOT_DIR__ . '/usr/uploads/avatars/';
if (!is_dir($uploadDir)) {
mkdir($uploadDir, 0755, true);
}
$extension = image_type_to_extension($imageType) ?: '.jpg';
$filename = 'avatar_' . $userId . '_' . time() . $extension;
$filepath = $uploadDir . $filename;
if (!move_uploaded_file($file['tmp_name'], $filepath)) {
return ['success' => false, 'message' => '文件保存失败'];
}
$options = Mirai_opt();
$url = \Typecho_Common::url('usr/uploads/avatars/' . $filename, $options->siteUrl);
return ['success' => true, 'url' => $url, 'message' => '上传成功'];
}
function Mirai_deleteOldAvatar($avatarUrl) {
if (empty($avatarUrl)) return;
$options = Mirai_opt();
$siteUrl = $options->siteUrl;
if (strpos($avatarUrl, $siteUrl) !== false) {
$relativePath = str_replace($siteUrl, '', $avatarUrl);
$relativePath = ltrim($relativePath, '/');
if (strpos($relativePath, '..') !== false) {
return; // 禁止路径遍历
}
if (strpos($relativePath, 'usr/uploads/avatars/') !== 0) {
return;
}
$path = __TYPECHO_ROOT_DIR__ . '/' . $relativePath;
$path = preg_replace('#/+#', '/', $path);
if (file_exists($path) && is_file($path)) {
@unlink($path);
}
}
}
function Mirai_formatISODate($timestamp) {
if (class_exists('\Typecho\Date')) {
return (new \Typecho\Date($timestamp))->format('c');
} elseif (class_exists('Typecho_Date')) {
return (new Typecho_Date($timestamp))->format('c');
}
$options = Mirai_opt();
$timezone = $options->timezone;
$localTime = $timestamp + $timezone;
$datePart = gmdate('Y-m-d\TH:i:s', $localTime);
$offsetHours = floor($timezone / 3600);
$offsetMinutes = floor(($timezone % 3600) / 60);
$offsetPart = sprintf('%+03d:%02d', $offsetHours, $offsetMinutes);
return $datePart . $offsetPart;
}
function Mirai_isMobile() {
$ua = $_SERVER['HTTP_USER_AGENT'] ?? '';
if (preg_match('/Android|iPhone|iPod|BlackBerry|IEMobile|Opera Mini/i', $ua)) {
return true;
}
if (preg_match('/iPad/i', $ua)) {
return true;
}
if (strpos($ua, 'Macintosh') !== false && isset($_SERVER['HTTP_SEC_CH_UA_MOBILE']) && $_SERVER['HTTP_SEC_CH_UA_MOBILE'] === '?1') {
return true;
}
return false;
}
function Mirai_formatTime($timestamp) {
$diff = time() - $timestamp;
if ($diff < 60) {
return '刚刚';
} elseif ($diff < 3600) {
return floor($diff / 60) . '分钟前';
} elseif ($diff < 86400) {
return floor($diff / 3600) . '小时前';
} elseif ($diff < 604800) {
return floor($diff / 86400) . '天前';
} else {
if (class_exists('\Typecho\Date')) {
return (new \Typecho\Date($timestamp))->format('Y-m-d');
} elseif (class_exists('Typecho_Date')) {
return (new Typecho_Date($timestamp))->format('Y-m-d');
}
$options = Mirai_opt();
return gmdate('Y-m-d', $timestamp + $options->timezone);
}
}
function Mirai_formatNumber($num, $type = 'auto') {
$num = (int)$num;
if ($type === 'views') {
if ($num >= 10000) return round($num / 10000, 1) . 'W';
if ($num >= 1000) return round($num / 1000, 1) . 'K';
return (string)$num;
}
if ($num >= 100000000) {
return round($num / 100000000, 1) . '亿';
} elseif ($num >= 10000) {
return round($num / 10000, 1) . '万';
} elseif ($num >= 1000) {
return round($num / 1000, 1) . 'K';
}
return (string)$num;
}
function Mirai_renderLogo($options) {
$siteTitle = $options->siteTitle ?: $options->title;
$logoImage = !empty($options->logoImage) ? $options->logoImage : 'usr/themes/Mirai/assets/images/logo.png';
$darkLogoImage = !empty($options->darkLogoImage) ? $options->darkLogoImage : '';
$logoAlt = !empty($options->logoAlt) ? $options->logoAlt : $siteTitle;
$logoHeight = !empty($options->logoHeight) ? intval($options->logoHeight) : 40;
$logoUrl = Mirai_normalizeUrl($logoImage);
$heightAttr = ' height="' . $logoHeight . '"';
if ($darkLogoImage) {
$darkLogoUrl = Mirai_normalizeUrl($darkLogoImage);
echo ' . ')
';
echo ' . ')
';
} else {
echo '';
}
}
function Mirai_isSkeletonEnabled($source = null) {
$options = $source && !empty($source->options) ? $source->options : Mirai_opt();
$archiveAjax = isset($options->archivePaginationMode) && $options->archivePaginationMode === 'ajax';
$commentAjax = isset($options->commentsPaginationMode) && $options->commentsPaginationMode === 'ajax';
if ($archiveAjax || $commentAjax) {
return true;
}
if ($source && method_exists($source, 'is') && $source->is('index')) {
return true;
}
return false;
}
function Mirai_renderSkeletonArticleCards($count = 6, $gridColumns = 3, $wrapContainer = true) {
$count = max(1, min($count, 50));
if ($wrapContainer) {
$html = '';
} else {
$html = '';
}
for ($i = 0; $i < $count; $i++) {
$html .= '';
$html .= '';
$html .= '';
$html .= '';
$html .= '
';
$html .= '';
}
return $html . ($wrapContainer ? '' : '');
}
function Mirai_renderSkeletonSingleColumnArticles($count = 4, $wrapContainer = true) {
$count = max(1, min($count, 50));
if ($wrapContainer) {
$html = '';
} else {
$html = '';
}
for ($i = 0; $i < $count; $i++) {
$html .= '';
$html .= '';
$html .= '';
$html .= '';
$html .= '';
$html .= '
';
$html .= '';
$html .= '';
$html .= '
';
$html .= '
';
$html .= '