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@ -1252,40 +1252,166 @@ class Api {
@@ -1252,40 +1252,166 @@ class Api {
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/** |
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* 获取链接信息 |
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*/ |
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public function get_link_info($token,$url){ |
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/** |
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* 获取链接的标题和描述信息 (优化版) |
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* |
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* @param string $token 用于认证的令牌 |
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* @param string $url 需要获取信息的URL |
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* @return void 直接输出JSON格式的返回结果 |
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*/ |
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public function get_link_info($token, $url) |
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{ |
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$this->auth($token); |
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//检查链接是否合法 |
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$pattern = "/^(http:\/\/|https:\/\/).*/"; |
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//链接不合法 |
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if( empty($url) ) { |
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$this->err_msg(-2000,'URL不能为空!'); |
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} |
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if( !preg_match($pattern,$url) ){ |
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$this->err_msg(-1010,'只支持识别http/https协议的链接!'); |
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} |
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else if( !filter_var($url, FILTER_VALIDATE_URL) ) { |
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$this->err_msg(-2000,'只支持识别http/https协议的链接!'); |
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} |
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//获取网站标题 |
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$c = curl_init(); |
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curl_setopt($c, CURLOPT_URL, $url); |
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curl_setopt($c, CURLOPT_RETURNTRANSFER, 1); |
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curl_setopt($c, CURLOPT_SSL_VERIFYPEER, false); |
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curl_setopt($c, CURLOPT_SSL_VERIFYHOST, false); |
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//设置超时时间 |
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curl_setopt($c , CURLOPT_TIMEOUT, 10); |
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$data = curl_exec($c); |
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curl_close($c); |
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$pos = strpos($data,'utf-8'); |
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if($pos===false){$data = iconv("gbk","utf-8",$data);} |
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preg_match("/<title>(.*)<\/title>/i",$data, $title); |
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$link['title'] = $title[1]; |
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//获取网站描述 |
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$tags = get_meta_tags($url); |
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$link['description'] = $tags['description']; |
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// 步骤 1: 验证URL的有效性 |
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if (empty($url)) { |
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$this->err_msg(-2000, 'URL不能为空!'); |
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} |
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// 使用 filter_var 和正则表达式进行双重验证，确保是有效的http/https链接 |
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if (!filter_var($url, FILTER_VALIDATE_URL) || !preg_match("/^https?:\/\//i", $url)) { |
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$this->err_msg(-1010, '只支持识别http/https协议的链接!'); |
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} |
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// 初始化返回数据结构，确保即使获取失败也有完整的字段 |
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$link = [ |
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'title' => '', |
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'description' => '' |
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]; |
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// 步骤 2: 使用cURL获取网页内容（已优化） |
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$ch = curl_init(); |
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curl_setopt($ch, CURLOPT_URL, $url); |
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// 返回内容但不直接输出 |
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); |
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// 获取HTTP头信息，用于编码检测 |
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curl_setopt($ch, CURLOPT_HEADER, 1); |
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// 自动跟随重定向 |
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); |
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// 最大重定向次数 |
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curl_setopt($ch, CURLOPT_MAXREDIRS, 5); |
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// 连接超时时间（秒） |
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curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5); |
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// 总执行超时时间（秒） |
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curl_setopt($ch, CURLOPT_TIMEOUT, 10); |
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// 设置浏览器User Agent，防止被部分网站屏蔽 |
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curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36'); |
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// 兼容https，原逻辑保留，但注意在生产环境中这可能带来安全风险 |
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); |
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curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); |
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// 性能优化：只下载前500KB内容，通常足以获取head信息 |
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curl_setopt($ch, CURLOPT_RANGE, '0-512000'); |
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$response = curl_exec($ch); |
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// 增加cURL错误处理 |
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if (curl_errno($ch)) { |
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$this->err_msg(-2001, '链接无法访问或超时: ' . curl_error($ch)); |
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} |
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$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); |
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// 增加HTTP状态码判断 |
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if ($http_code < 200 || $http_code >= 400) { |
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$this->err_msg(-2002, '链接返回无效的HTTP状态码: ' . $http_code); |
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} |
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// 分离响应头和响应体 |
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$header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE); |
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$header_str = substr($response, 0, $header_size); |
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$body = substr($response, $header_size); |
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curl_close($ch); |
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// 如果响应体为空，直接返回空信息 |
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if (empty($body)) { |
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exit(json_encode(['code' => 0, 'data' => $link])); |
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} |
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// 步骤 3: 智能检测编码并转换为UTF-8 |
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$encoding = ''; |
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// 方法A: 从HTTP响应头中提取编码 |
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if (preg_match('/charset=([\w-]+)/i', $header_str, $matches)) { |
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$encoding = strtoupper($matches[1]); |
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} |
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// 方法B: 如果响应头没有，则从HTML的meta标签中提取 |
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if (empty($encoding) && preg_match('/<meta.*?charset=["\']?([\w-]+)["\']?/i', $body, $matches)) { |
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$encoding = strtoupper($matches[1]); |
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} |
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// 方法C: 如果以上都没有，则自动检测 |
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if (empty($encoding)) { |
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$encoding = mb_detect_encoding($body, ['UTF-8', 'GBK', 'GB2312', 'BIG5', 'ISO-8859-1'], true); |
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} |
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// 如果检测到编码且不是UTF-8，则进行转换 |
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if ($encoding && $encoding !== 'UTF-8') { |
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$body = @mb_convert_encoding($body, 'UTF-8', $encoding); |
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} |
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// 步骤 4: 使用DOMDocument解析HTML，更稳定可靠 |
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$doc = new DOMDocument(); |
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// 抑制因HTML不规范而产生的警告 |
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libxml_use_internal_errors(true); |
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// 明确告知DOMDocument以UTF-8编码加载，防止二次乱码 |
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$doc->loadHTML('<?xml encoding="UTF-8">' . $body); |
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// 清理错误缓存 |
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libxml_clear_errors(); |
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$xpath = new DOMXPath($doc); |
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// 步骤 5: 提取标题（带后备方案） |
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// 方案1: 获取 <title> 标签 |
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$title_node = $xpath->query('//title')->item(0); |
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if ($title_node) { |
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$link['title'] = trim($title_node->nodeValue); |
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} |
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// 方案2: 获取 og:title |
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if (empty($link['title'])) { |
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$og_title_node = $xpath->query('//meta[@property="og:title"]/@content')->item(0); |
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if ($og_title_node) { |
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$link['title'] = trim($og_title_node->nodeValue); |
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} |
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} |
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// 方案3: 获取第一个 <h1> 标签 |
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if (empty($link['title'])) { |
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$h1_node = $xpath->query('//h1')->item(0); |
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if ($h1_node) { |
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$link['title'] = trim($h1_node->nodeValue); |
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} |
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} |
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// 步骤 6: 提取描述（带后备方案） |
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// 方案1: 获取 <meta name="description"> |
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$desc_node = $xpath->query('//meta[@name="description"]/@content')->item(0); |
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if ($desc_node) { |
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$link['description'] = trim($desc_node->nodeValue); |
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} |
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// 方案2: 获取 og:description |
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if (empty($link['description'])) { |
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$og_desc_node = $xpath->query('//meta[@property="og:description"]/@content')->item(0); |
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if ($og_desc_node) { |
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$link['description'] = trim($og_desc_node->nodeValue); |
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} |
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} |
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// 方案3: 获取第一个有意义的 <p> 标签内容 |
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if (empty($link['description'])) { |
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$p_nodes = $xpath->query('//p'); |
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foreach ($p_nodes as $p_node) { |
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$p_text = trim($p_node->nodeValue); |
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// 选取一个长度较长的段落作为描述 |
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if (mb_strlen($p_text, 'UTF-8') > 30) { |
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$link['description'] = $p_text; |
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break; |
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} |
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} |
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} |
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// 对获取到的结果进行HTML实体解码，使显示更友好 |
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if($link['title']) { |
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$link['title'] = html_entity_decode($link['title'], ENT_QUOTES | ENT_HTML5, 'UTF-8'); |
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} |
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if($link['description']) { |
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$link['description'] = html_entity_decode($link['description'], ENT_QUOTES | ENT_HTML5, 'UTF-8'); |
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} |
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// 步骤 7: 按指定格式返回成功结果 |
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$data = [ |
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'code' => 0, |
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'data' => $link |
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@ -1611,6 +1737,23 @@ class Api {
@@ -1611,6 +1737,23 @@ class Api {
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$this->return_json(200,$theme_config,""); |
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} |
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// 获取设置的主题 |
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public function get_themes() { |
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$theme = $this->db->get("on_options","value",[ |
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"key" => "s_themes" |
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]); |
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// 字符串转换为数组 |
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$theme = json_decode($theme, true); |
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//如果主题不存在，则返回默认主题 |
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if( empty($theme) ) { |
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$theme = [ |
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"pc_theme" => "default2", |
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"mobile_theme" => "default2" |
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]; |
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} |
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$this->return_json(200,$theme,""); |
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} |
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/** |
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* 通用json消息返回 |
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*/ |
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