Shortlink/api/api.php

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<?php
// 引入类
require_once('../inc/require.php');
global $config;
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if($config['api']) {
$url_c = new url();
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$opt = [];
$opt['success'] = 'false';
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if(isset($_GET['url'])) {
// 添加 HTTP 协议前缀
if(!strstr($_GET['url'], 'http://') && !strstr($_GET['url'], 'https:')) $_GET['url'] = 'http://' . $_GET['url'];
// 检测网址格式是否正确
$is_link = preg_match('(http(|s)://([\w-]+\.)+[\w-]+(/)?)', $_GET['url']);
// 判断条件
if($_GET['url'] != '' && !strstr($_GET['url'], $_SERVER['HTTP_HOST']) && $is_link) {
$opt['success'] = 'true';
$opt['content']['url'] = $url_c->set_url($_GET['url'], $config['length']);
} else if(strstr($_GET['url'], $_SERVER['HTTP_HOST'])) {
$opt['content'] = '链接已经是短地址了。';
} else if(!$is_link) {
$opt['content'] = '请输入正确格式的网址。';
}
} else {
$opt['content'] = '调用参数不能为空。';
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}
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// 输出
echo json_encode($opt);
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}
?>