614 lines
27 KiB
PHP
614 lines
27 KiB
PHP
<?php
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// 添加管理菜单
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add_action('admin_menu', 'flm_add_admin_menu');
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function flm_add_admin_menu() {
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add_menu_page(
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'友情链接管理',
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'友情链接',
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'manage_options',
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'friend-links-manager',
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'flm_admin_page',
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'dashicons-admin-links',
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30
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);
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}
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// 处理导出请求
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add_action('admin_init', 'flm_handle_export');
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function flm_handle_export() {
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if (isset($_GET['page']) && $_GET['page'] === 'friend-links-manager' &&
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isset($_GET['action']) && $_GET['action'] === 'export' &&
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isset($_GET['nonce']) && wp_verify_nonce($_GET['nonce'], 'flm_export_nonce')) {
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global $wpdb;
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$table_name = $wpdb->prefix . 'friend_links';
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// 检查表是否存在
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if ($wpdb->get_var("SHOW TABLES LIKE '$table_name'") != $table_name) {
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wp_die('友情链接表不存在，请先添加一些链接。');
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}
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$links = $wpdb->get_results("SELECT * FROM $table_name ORDER BY sort_order ASC");
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// 检查是否有数据
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if (empty($links)) {
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wp_die('没有找到任何链接数据，请先添加一些链接。');
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}
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// 清除所有输出缓冲
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while (ob_get_level()) {
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ob_end_clean();
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}
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header('Content-Type: text/csv; charset=utf-8');
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header('Content-Disposition: attachment; filename=friend-links-export-' . date('Y-m-d') . '.csv');
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header('Pragma: no-cache');
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header('Expires: 0');
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header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
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header('Content-Transfer-Encoding: binary');
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$output = fopen('php://output', 'w');
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// 添加BOM头解决中文乱码
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fwrite($output, chr(0xEF).chr(0xBB).chr(0xBF));
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// 写入四列标题
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fputcsv($output, array(
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'网站名称',
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'网站URL',
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'图标URL',
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'链接描述'
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));
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foreach ($links as $link) {
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// 对每列数据应用极端清理
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fputcsv($output, array(
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flm_sanitize_export_text($link->name),
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flm_sanitize_export_url($link->url),
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flm_sanitize_export_url($link->icon),
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flm_sanitize_export_text($link->description)
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));
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}
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fclose($output);
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exit;
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}
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}
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// 自动获取favicon
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function flm_get_favicon($url) {
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$domain = parse_url($url, PHP_URL_HOST);
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if ($domain) {
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$domain = preg_replace('/^www\./', '', $domain);
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return 'https://favicon.im/' . urlencode($domain);
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}
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return '';
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}
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// 极端严格的URL清理（用于导出）
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function flm_sanitize_export_url($url) {
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if (empty($url)) return '';
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// 先解码HTML实体
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$url = html_entity_decode($url);
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// 移除所有HTML标签和特殊字符
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$url = strip_tags($url);
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$url = str_replace(array("\r", "\n", "\t", "\\", "'", '"', " ", "<", ">"), '', $url);
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// 使用正则提取纯URL
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if (preg_match('/(https?:\/\/[^\s\"\'<>]+)/i', $url, $matches)) {
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$url = $matches[1];
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}
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// 最终过滤和验证
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$url = filter_var($url, FILTER_SANITIZE_URL);
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if (!preg_match('/^https?:\/\//i', $url)) {
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$url = 'http://' . ltrim($url, '/');
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}
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return rtrim($url, '/');
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}
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// 极端严格的文本清理（用于导出）
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function flm_sanitize_export_text($text) {
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if (empty($text)) return '';
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// 彻底移除所有HTML/JavaScript代码
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$text = html_entity_decode($text);
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$text = strip_tags($text);
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$text = str_replace(array("\r", "\n", "\t", "\\", "'", '"', "<", ">"), '', $text);
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return sanitize_text_field($text);
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}
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// 管理页面内容
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function flm_admin_page() {
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global $wpdb;
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$table_name = $wpdb->prefix . 'friend_links';
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// 显示提示信息
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echo '<div class="notice notice-info"><p><strong>💡 提示：</strong>卸载插件时会删除数据，禁用插件不会丢失数据。</p></div>';
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// 显示数据库修复结果
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if (isset($_GET['flm_fix_success'])) {
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echo '<div class="notice notice-success"><p>✅ 数据库修复成功！description字段已添加，现在可以正常保存链接信息了。</p></div>';
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} elseif (isset($_GET['flm_fix_error'])) {
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echo '<div class="notice notice-error"><p>❌ 数据库修复失败，请检查数据库权限。</p></div>';
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} elseif (isset($_GET['flm_fix_exists'])) {
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echo '<div class="notice notice-info"><p>ℹ️ 数据库表结构正常，无需修复。</p></div>';
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}
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// 数据库修复按钮
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echo '<div class="notice notice-warning"><p><strong>⚠️ 数据库修复：</strong><a href="' . wp_nonce_url(admin_url('admin.php?page=friend-links-manager&flm_fix_db=1'), 'flm_fix_db') . '" class="button">点击修复数据库表结构</a>（如果保存功能不工作）</p></div>';
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// 处理表单提交
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if (isset($_POST['flm_action'])) {
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check_admin_referer('flm_nonce');
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switch ($_POST['flm_action']) {
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case 'add_link':
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if (!empty($_POST['name']) && !empty($_POST['url'])) {
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$name = sanitize_text_field($_POST['name']);
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$url = esc_url_raw($_POST['url']);
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// 验证URL格式
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if (!filter_var($url, FILTER_VALIDATE_URL)) {
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echo '<div class="notice notice-error"><p>请输入有效的URL地址！</p></div>';
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break;
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}
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$auto_get_icon = isset($_POST['auto_get_icon']) ? true : false;
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$icon = '';
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if ($auto_get_icon) {
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$icon = flm_get_favicon($url);
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} elseif (!empty($_POST['icon'])) {
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$icon = esc_url_raw($_POST['icon']);
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}
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$description = !empty($_POST['description']) ? sanitize_textarea_field($_POST['description']) : '';
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$existing = $wpdb->get_row($wpdb->prepare(
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"SELECT id FROM $table_name WHERE url = %s",
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$url
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));
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if (!$existing) {
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// 获取当前最大的sort_order值
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$max_sort_order = $wpdb->get_var("SELECT MAX(sort_order) FROM $table_name");
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$new_sort_order = $max_sort_order ? intval($max_sort_order) + 1 : 0;
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$wpdb->insert($table_name, array(
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'name' => $name,
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'url' => $url,
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'icon' => $icon,
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'description' => $description,
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'sort_order' => $new_sort_order
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));
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echo '<div class="notice notice-success"><p>链接添加成功！</p></div>';
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} else {
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echo '<div class="notice notice-error"><p>该URL的链接已存在！</p></div>';
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}
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}
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break;
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case 'update_links':
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if (!empty($_POST['link_ids'])) {
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$update_errors = 0;
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$update_count = 0;
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// 直接使用数组格式
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$link_ids = array_values($_POST['link_ids']);
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$link_names = isset($_POST['link_names']) ? array_values($_POST['link_names']) : array();
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$link_urls = isset($_POST['link_urls']) ? array_values($_POST['link_urls']) : array();
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$link_icons = isset($_POST['link_icons']) ? array_values($_POST['link_icons']) : array();
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$link_descriptions = isset($_POST['link_descriptions']) ? array_values($_POST['link_descriptions']) : array();
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foreach ($link_ids as $index => $id) {
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// 确保数组索引存在
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if (!isset($link_names[$index]) || !isset($link_urls[$index])) {
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$update_errors++;
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continue;
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}
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$name = sanitize_text_field($link_names[$index]);
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$url = esc_url_raw($link_urls[$index]);
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// 验证URL格式
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if (!filter_var($url, FILTER_VALIDATE_URL)) {
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$update_errors++;
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continue;
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}
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$icon = isset($link_icons[$index]) ? esc_url_raw($link_icons[$index]) : '';
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$description = isset($link_descriptions[$index]) ? sanitize_textarea_field($link_descriptions[$index]) : '';
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$update_data = array(
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'name' => $name,
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'url' => $url,
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'icon' => $icon,
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'description' => $description,
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'sort_order' => $index
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);
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$result = $wpdb->update($table_name, $update_data, array('id' => intval($id)));
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if ($result === false) {
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echo '<div class="notice notice-error"><p><strong>数据库错误：</strong>ID ' . $id . ' 更新失败: ' . $wpdb->last_error . '</p></div>';
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$update_errors++;
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} else {
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$update_count++;
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}
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}
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if ($update_errors > 0) {
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echo '<div class="notice notice-warning"><p>更新完成！成功更新 ' . $update_count . ' 条链接，跳过 ' . $update_errors . ' 条记录</p></div>';
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} else {
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echo '<div class="notice notice-success"><p>链接更新成功！共更新 ' . $update_count . ' 条记录</p></div>';
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}
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}
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break;
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case 'delete_link':
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if (!empty($_POST['link_id'])) {
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$wpdb->delete($table_name, array('id' => intval($_POST['link_id'])));
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echo '<div class="notice notice-success"><p>链接删除成功！</p></div>';
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}
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break;
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case 'export_links':
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// 使用WordPress的admin_url进行重定向导出
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$export_url = admin_url('admin.php?page=friend-links-manager&action=export&nonce=' . wp_create_nonce('flm_export_nonce'));
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wp_redirect($export_url);
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exit;
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break;
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case 'save_settings':
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$desktop_columns = isset($_POST['desktop_columns']) ? intval($_POST['desktop_columns']) : 3;
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$random_display = isset($_POST['random_display']) ? 1 : 0;
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$show_descriptions = isset($_POST['show_descriptions']) ? 1 : 0;
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update_option('flm_desktop_columns', $desktop_columns);
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update_option('flm_random_display', $random_display);
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update_option('flm_show_descriptions', $show_descriptions);
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echo '<div class="notice notice-success"><p>设置保存成功！</p></div>';
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break;
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case 'import_links':
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if (!empty($_FILES['import_file']['tmp_name'])) {
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$file = $_FILES['import_file']['tmp_name'];
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$handle = fopen($file, 'r');
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$import_count = 0;
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$update_count = 0;
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$error_count = 0;
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// 跳过标题行
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fgetcsv($handle);
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$sort_order = 0;
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while (($data = fgetcsv($handle)) !== false) {
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if (count($data) < 2 || empty($data[0]) || empty($data[1])) {
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$error_count++;
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continue;
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}
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$name = sanitize_text_field($data[0]);
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$url = esc_url_raw($data[1]);
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$icon = isset($data[2]) ? esc_url_raw($data[2]) : flm_get_favicon($data[1]);
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$description = isset($data[3]) ? sanitize_textarea_field($data[3]) : '';
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if (!filter_var($url, FILTER_VALIDATE_URL)) {
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$error_count++;
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continue;
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}
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if (!empty($name) && !empty($url)) {
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$existing = $wpdb->get_row($wpdb->prepare(
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"SELECT id FROM $table_name WHERE url = %s",
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$url
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));
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if ($existing) {
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$wpdb->update($table_name, array(
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'name' => $name,
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'icon' => $icon,
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'description' => $description
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), array('id' => $existing->id));
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$update_count++;
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} else {
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$wpdb->insert($table_name, array(
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'name' => $name,
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'url' => $url,
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'icon' => $icon,
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'description' => $description,
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'sort_order' => $sort_order
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));
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$import_count++;
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}
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$sort_order++;
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}
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}
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fclose($handle);
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$message = sprintf(
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'导入完成！新增 %d 条链接，更新 %d 条已有链接',
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$import_count,
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$update_count
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);
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if ($error_count > 0) {
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$message .= sprintf('，跳过 %d 条格式不正确的记录', $error_count);
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}
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echo '<div class="notice notice-success"><p>' . $message . '</p></div>';
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}
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break;
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case 'save_settings':
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$desktop_columns = isset($_POST['desktop_columns']) ? intval($_POST['desktop_columns']) : 3;
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$random_display = isset($_POST['random_display']) ? 1 : 0;
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$show_descriptions = isset($_POST['show_descriptions']) ? 1 : 0;
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update_option('flm_desktop_columns', $desktop_columns);
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update_option('flm_random_display', $random_display);
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update_option('flm_show_descriptions', $show_descriptions);
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echo '<div class="notice notice-success"><p>设置保存成功！</p></div>';
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break;
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}
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}
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// 获取所有链接
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$links = $wpdb->get_results("SELECT * FROM $table_name ORDER BY sort_order ASC");
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?>
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<div class="wrap">
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<h1>友情链接管理</h1>
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<div class="flm-admin-container">
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<!-- 添加新链接表单 -->
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<div class="flm-add-form">
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<h2>添加新链接</h2>
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<form method="post">
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<?php wp_nonce_field('flm_nonce'); ?>
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<input type="hidden" name="flm_action" value="add_link">
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<div class="form-group">
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<label for="name">网站名称 (必填)</label>
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<input type="text" id="name" name="name" required>
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</div>
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<div class="form-group">
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<label for="url">网站URL (必填)</label>
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<input type="url" id="url" name="url" required>
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</div>
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<div class="form-group">
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<label>
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<input type="checkbox" id="auto_get_icon" name="auto_get_icon" checked>
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自动获取网站头像
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</label>
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</div>
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<div class="form-group" id="icon_field" style="display:none;">
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<label for="icon">网站图标URL (可选)</label>
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<input type="url" id="icon" name="icon">
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<p class="description">手动指定图标URL</p>
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</div>
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<div class="form-group">
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<label for="description">链接描述 (可选)</label>
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<textarea id="description" name="description" rows="3" placeholder="一句话描述这个网站"></textarea>
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</div>
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<button type="submit" class="button button-primary">添加链接</button>
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</form>
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</div>
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<!-- 链接列表 -->
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<div class="flm-links-list">
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<h2>链接列表</h2>
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<!-- 显示设置 -->
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<div class="flm-top-section flm-display-settings">
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<h3>显示设置</h3>
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<form method="post">
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<?php wp_nonce_field('flm_nonce'); ?>
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<input type="hidden" name="flm_action" value="save_settings">
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<div class="form-group">
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<label for="desktop_columns">电脑端每行显示链接数</label>
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<select id="desktop_columns" name="desktop_columns">
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<option value="2" <?php selected(get_option('flm_desktop_columns', 3), 2); ?>>2个</option>
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<option value="3" <?php selected(get_option('flm_desktop_columns', 3), 3); ?>>3个</option>
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<option value="4" <?php selected(get_option('flm_desktop_columns', 3), 4); ?>>4个</option>
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<option value="5" <?php selected(get_option('flm_desktop_columns', 3), 5); ?>>5个</option>
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<option value="6" <?php selected(get_option('flm_desktop_columns', 3), 6); ?>>6个</option>
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</select>
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</div>
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<div class="form-group">
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<label>
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<input type="checkbox" name="random_display" <?php checked(get_option('flm_random_display', 1), 1); ?>>
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随机显示友情链接
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</label>
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<p class="description">关闭后，按照链接添加顺序或CSV文件中的顺序显示</p>
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</div>
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<div class="form-group">
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<label>
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<input type="checkbox" name="show_descriptions" <?php checked(get_option('flm_show_descriptions', 1), 1); ?>>
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显示链接描述
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</label>
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<p class="description">关闭后，即使链接有描述也不会在前台显示</p>
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</div>
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<button type="submit" class="button button-primary">保存设置</button>
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</form>
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</div>
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|
||
<form method="post" id="flm-links-form">
|
||
<?php wp_nonce_field('flm_nonce'); ?>
|
||
<input type="hidden" name="flm_action" value="update_links">
|
||
|
||
<div class="flm-top-actions">
|
||
<button type="submit" class="button button-primary">保存更改</button>
|
||
<a href="<?php echo admin_url('admin.php?page=friend-links-manager&action=export&nonce=' . wp_create_nonce('flm_export_nonce')); ?>" class="button">导出为CSV</a>
|
||
<button type="button" class="button flm-batch-delete" disabled>批量删除</button>
|
||
</div>
|
||
|
||
<ul id="flm-sortable-links">
|
||
<?php foreach ($links as $link): ?>
|
||
<li class="flm-link-item">
|
||
<input type="hidden" name="link_ids[]" value="<?php echo $link->id; ?>">
|
||
|
||
<div class="flm-link-checkbox">
|
||
<input type="checkbox" class="flm-select-link" value="<?php echo $link->id; ?>">
|
||
</div>
|
||
|
||
<div class="flm-link-preview">
|
||
<span class="flm-drag-handle">☰</span>
|
||
<?php if ($link->icon): ?>
|
||
<img src="<?php echo esc_url($link->icon); ?>" alt="<?php echo esc_attr($link->name); ?>" class="flm-link-icon">
|
||
<?php endif; ?>
|
||
<span class="flm-link-name"><?php echo esc_html($link->name); ?></span>
|
||
</div>
|
||
|
||
<div class="flm-link-fields">
|
||
<div class="form-group">
|
||
<label>网站名称</label>
|
||
<input type="text" name="link_names[]" value="<?php echo esc_attr($link->name); ?>" required>
|
||
</div>
|
||
|
||
<div class="form-group">
|
||
<label>网站URL</label>
|
||
<input type="url" name="link_urls[]" value="<?php echo esc_attr($link->url); ?>" required>
|
||
</div>
|
||
|
||
<div class="form-group">
|
||
<label>网站图标URL</label>
|
||
<input type="url" name="link_icons[]" value="<?php echo esc_attr($link->icon); ?>">
|
||
</div>
|
||
|
||
<div class="form-group">
|
||
<label>链接描述</label>
|
||
<textarea name="link_descriptions[]" rows="2" placeholder="一句话描述这个网站"><?php echo esc_textarea($link->description); ?></textarea>
|
||
</div>
|
||
</div>
|
||
|
||
<div class="flm-link-actions">
|
||
<button type="button" class="button flm-delete-link" data-link-id="<?php echo $link->id; ?>">删除</button>
|
||
</div>
|
||
</li>
|
||
<?php endforeach; ?>
|
||
</ul>
|
||
|
||
<?php if (!empty($links)): ?>
|
||
<button type="submit" class="button button-primary">保存更改</button>
|
||
<?php endif; ?>
|
||
</form>
|
||
|
||
<!-- 导入功能 -->
|
||
<div class="flm-top-section flm-import">
|
||
<h3>导入链接</h3>
|
||
|
||
<form method="post" enctype="multipart/form-data">
|
||
<?php wp_nonce_field('flm_nonce'); ?>
|
||
<input type="hidden" name="flm_action" value="import_links">
|
||
|
||
<div class="form-group">
|
||
<label for="import_file">选择CSV文件</label>
|
||
<input type="file" id="import_file" name="import_file" accept=".csv" required>
|
||
<p class="description">请选择包含四列数据的CSV文件（网站名称、网站URL、图标URL、链接描述），描述列为可选</p>
|
||
</div>
|
||
|
||
<button type="submit" class="button button-primary">导入链接</button>
|
||
</form>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<?php
|
||
}
|
||
|
||
// 处理AJAX删除请求
|
||
add_action('wp_ajax_flm_delete_link', 'flm_ajax_delete_link');
|
||
function flm_ajax_delete_link() {
|
||
check_ajax_referer('flm_nonce', 'nonce');
|
||
|
||
if (!empty($_POST['link_id'])) {
|
||
global $wpdb;
|
||
$table_name = $wpdb->prefix . 'friend_links';
|
||
$wpdb->delete($table_name, array('id' => intval($_POST['link_id'])));
|
||
wp_send_json_success();
|
||
}
|
||
|
||
wp_send_json_error();
|
||
}
|
||
|
||
// 处理AJAX排序更新请求
|
||
add_action('wp_ajax_flm_update_sort_order', 'flm_ajax_update_sort_order');
|
||
function flm_ajax_update_sort_order() {
|
||
check_ajax_referer('flm_nonce', 'nonce');
|
||
|
||
if (!empty($_POST['link_ids']) && is_array($_POST['link_ids'])) {
|
||
global $wpdb;
|
||
$table_name = $wpdb->prefix . 'friend_links';
|
||
|
||
foreach ($_POST['link_ids'] as $index => $link_id) {
|
||
$link_id = intval($link_id);
|
||
if ($link_id > 0) {
|
||
$wpdb->update($table_name,
|
||
array('sort_order' => $index),
|
||
array('id' => $link_id),
|
||
array('%d'),
|
||
array('%d')
|
||
);
|
||
}
|
||
}
|
||
|
||
wp_send_json_success();
|
||
}
|
||
|
||
wp_send_json_error();
|
||
}
|
||
|
||
// 处理AJAX批量删除请求
|
||
add_action('wp_ajax_flm_batch_delete_links', 'flm_ajax_batch_delete_links');
|
||
function flm_ajax_batch_delete_links() {
|
||
check_ajax_referer('flm_nonce', 'nonce');
|
||
|
||
if (!empty($_POST['link_ids']) && is_array($_POST['link_ids'])) {
|
||
global $wpdb;
|
||
$table_name = $wpdb->prefix . 'friend_links';
|
||
$deleted_count = 0;
|
||
$error_count = 0;
|
||
|
||
foreach ($_POST['link_ids'] as $link_id) {
|
||
$link_id = intval($link_id);
|
||
if ($link_id > 0) {
|
||
$result = $wpdb->delete($table_name, array('id' => $link_id), array('%d'));
|
||
if ($result !== false) {
|
||
$deleted_count++;
|
||
} else {
|
||
$error_count++;
|
||
}
|
||
}
|
||
}
|
||
|
||
if ($deleted_count > 0) {
|
||
wp_send_json_success(array(
|
||
'deleted_count' => $deleted_count,
|
||
'error_count' => $error_count
|
||
));
|
||
} else {
|
||
wp_send_json_error('没有链接被删除');
|
||
}
|
||
}
|
||
|
||
wp_send_json_error('无效的请求参数');
|
||
}
|