FIRST

.htaccess

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+Options -Indexes
+order deny,allow
+
+<Files ~ "^.(htaccess|htpasswd)$">
+deny from all
+</Files>
+
+<Files ~ "^database.db">
+deny from all
+</Files>
+
+RewriteEngine On
+RewriteCond $1 !^(api|asset)
+RewriteRule ^(\d+|\w+)$ index.php?id=$1

LICENSE

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+MIT License
+
+Copyright (c) 2017 Caringor
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# ShortLink
+
+**简体中文** | [English](./README.en.md)
+
+代码基于 [CRZ.im](https://github.com/Caringor/CRZ.im) 二次开发，感谢原作者的辛勤劳动。
+
+## 概述
+
+这是一个网址缩短服务的网站的源代码。
+
+## 安装
+
+### 环境准备
+
++ 兼容 PHP 7.x
++ `Nginx 1.15+`
++ ~~`MySQL 5.5+`~~ （目前还不需要）
+
+提示：若访问量较大，建议安装在具有SSD硬盘的服务器上。
+
+### 配置修改
+
+修改 `config.php` 的相关配置并把 `inc` 目录权限设置为 `755` 即可。
+
+### URL 重写规则
+
+#### Apache 用户
+
+直接使用 `.htaccess` 文件即可。
+
+#### Nginx 用户
+
+需要把 `nginx-rewrite.conf` 里面的内容添加到 `Nginx` 对欲使用网站的配置文件里。
+
+## 功能
+
++ 长链转短链
++ 界面简洁
++ 一键复制
+
+## Todo List
+
++ 增加 `MySQL` 支持
++ More...

api/api.php

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+<?php
+    // 引入类
+    require_once('../inc/require.php');
+    global $config;
+    if($config['api']) {
+        $url_c = new url();
+
+        $opt = [];
+        $opt['success'] = 'false';
+
+        if(isset($_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 {
+            $opt['content'] = '调用参数不能为空。';
+        }
+        // 输出
+        echo json_encode($opt);
+    }
+?>

api/index.php

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+<?php exit; ?>

api/set.php

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

asset/css/main.css

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+/* Reset */
+* {
+    margin: 0;
+    padding: 0;
+}
+html, body, input, text, textarea {
+    outline: none;
+    font-family: 'Arial', 'Microsoft YaHei', '黑体', '宋体', sans-serif;
+    font-size: 12px;
+}
+html, body {
+    background: #fff;
+}
+a {
+    text-decoration: none;
+}
+a:hover {
+    text-decoration: underline;
+}
+
+/* Main */
+.wrap {
+    text-align: center;
+    overflow: hidden;
+}
+.wrap .meta {
+    margin: 160px 0 0 0;
+    opacity: 0;
+    transform: translateY(-150px);
+    transition: .5s all ease;
+}
+.on .wrap .meta {
+    opacity: 1;
+    transform: translateY(0);
+}
+.wrap .meta .title {
+    line-height: 1em;
+    color: #ff4665;
+    font-size: 42px;
+    text-transform: uppercase;
+}
+.wrap .meta .description {
+    margin: 10px 0 0 0;
+    line-height: 1em;
+    color: #7e7e7e;
+    font-size: 16px;
+    font-weight: normal;
+}
+.wrap .link-area {
+    margin: 50px 0 0 0;
+    opacity: 0;
+    transition: .5s opacity ease;
+}
+.on .wrap .link-area {
+    opacity: 1;
+}
+.wrap .link-area input {
+    display: inline-block;
+    vertical-align: middle;
+}
+.wrap .link-area #url,
+.wrap .link-area #shorturl {
+    width: 320px;
+    height: 32px;
+    line-height: 32px;
+    padding: 0 10px;
+    border: 3px solid #bdc3c7;
+    border-radius: 5px;
+    color: #333;
+}
+.wrap .link-area #url.focus,
+.wrap .link-area #url:focus {
+    border-color: #ff4665;
+    transition: .2s border ease;
+}
+.wrap .link-area #shorturlcopy,
+.wrap .link-area #submit {
+    width: 90px;
+    height: 38px;
+    margin: 0 0 0 5px;
+    background: #ff4665;
+    border-radius: 5px;
+    color: #fff;
+    border: none;
+    cursor: pointer;
+    transition: .2s opacity ease;
+}
+.wrap .link-area #submit:hover {
+    opacity: .75;
+}
+.wrap .link-area #submit:active {
+    opacity: .9;
+}
+.wrap .footer {
+    width: 100%;
+    bottom: 80px;
+    left: 0;
+    position: absolute;
+    color: #7e7e7e;
+}
+.wrap .footer a {
+    color:#ff4665;
+}

asset/js/app.js

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+
+function copyText() {
+        var input = document.getElementById("shorturl");
+        input.select(); // 选中文本
+        document.execCommand("copy"); // 执行浏览器复制命令
+}
+
+
+var APP = (function(){
+
+    var fn = {
+
+        // 生成短地址
+        setUrl: function(self) {
+            var urlEl = document.getElementById('url'),
+                tips = 'https://',
+                request = {"url": urlEl.value};
+            fn.getJson('api/set.php', true, JSON.stringify(request), function(res) {
+                if(res.success == 'true') {
+                    //urlEl.className = 'focus';
+                    //urlEl.value = res.content.url;
+                    $res = document.getElementById('shorturl')
+                    $res.className = 'focus';
+                    $res.value = res.content.url;
+                } else {
+                    urlEl.className = '';
+                    urlEl.value = '';
+                    urlEl.setAttribute('placeholder', res.content);
+                    setTimeout(function() {
+                        urlEl.setAttribute('placeholder', tips);
+                    }, 2000);
+                }
+            });
+        },
+        // 获取 JSON 数据
+        getJson: function(url, post, data, callback) {
+            var xhr = new XMLHttpRequest(),
+                type = (post) ? 'POST' : 'GET';
+            xhr.onreadystatechange = function() {
+                if(xhr.readyState == 4 && xhr.status == 200) {
+                    var json = JSON.parse(xhr.responseText);
+                    callback(json);
+                } else if(xhr.readyState == 4) {
+                    callback(false);
+                }
+            }
+            xhr.open(type, url, true);
+            xhr.send(data);
+        } 
+    },
+    init = function() {
+        setTimeout(function() {
+            var el = document.getElementsByTagName('html')[0];
+            el.className = 'on';
+        }, 10);
+    };
+    return {fn: fn, init: init}
+})();
+
+document.addEventListener('DOMContentLoaded', function() {APP.init();})

config.php

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+<?php
+
+  global $config;
+  $config = [];
+
+  // 程序安装路径
+  $config['path'] = '/';
+  // ID 长度
+  $config['length'] = 8;
+  // 网站标题
+  $config['title'] = '短链生成';
+  // 网站简介
+  $config['description'] = '在线网址缩短服务';
+
+  $config['api'] = true;
+
+?>

inc/class/db.class.php

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+<?php
+    class db  {
+        function __construct() {
+            $this->db = new PDO('sqlite:' . dirname(__FILE__) . '/database.db');
+            $this->init_tab();
+        }
+        // 初始化数据库结构
+        function init_tab() {
+            // 网址表
+            $this->db->exec("CREATE TABLE urls(id char(8) PRIMARY KEY, url longtext, ip varchar(16), ua varchar(255))");
+        }
+        // 查询表内容
+        function query($name, $rule = '') {
+            $query = $this->db->prepare("SELECT * FROM $name $rule");
+            $query->execute();
+            $result = $query->fetchAll();
+            return $result;
+        }
+        // 插入表内容
+        function insert($tab, $key, $val) {
+            $exec = $this->db->exec("INSERT INTO $tab ($key) VALUES($val)");
+            if(!$exec) return false;
+            $this->db->beginTransaction();
+        }
+        // 删除表内容
+        function delete($tab, $rule = '') {
+            $exec = $this->db->exec("DELETE FROM $tab $rule");
+            if(!$exec) return false;
+            $this->db->beginTransaction();
+        }
+    }
+?>