<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>留言本</title>
<link rel="stylesheet" href="css.css" type="text/css" />
<script src="ajax.js"></script>
<script>
window.onload = function ()
{
//初始化
var ouser = document.getElementById('user');
var ouserinfo = document.getElementById('userinfo');
var oreg = document.getElementById('reg');
var ologin = document.getElementById('login');
updata();
function updata()
{
var uid = getCookie('uid');
var username = getCookie('username');
if(uid)
{
//登陆状态
ouser.style.display = 'block';
ouserinfo.innerHTML = username;
oreg.style.display = 'none';
ologin.style.display = 'none';
}
else
{
ouser.style.display = 'none';
ouserinfo.innerHTML = '';
oreg.style.display = 'block';
ologin.style.display = 'block';
}
};
showlist();//列出其中几条
//验证用户名开始
var ousername1 = document.getElementById('username1');
var overifyUserNameMsg = document.getElementById('verifyUserNameMsg');
ousername1.onblur = function ()
{
ajax('get','guestbook/index.php','m=index&a=verifyUserName&username='+this.value,function (data)
{
var d = JSON.parse(data);
overifyUserNameMsg.innerHTML = d.message;
if(d.code)
{
overifyUserNameMsg.style.color = 'red';
}
else
{
overifyUserNameMsg.style.color = 'green';
}
});
}
//验证用户名结束
//用户注册开始
var opassword1 = document.getElementById('password1');
var obtnReg = document.getElementById('btnReg');
obtnReg.onclick = function ()
{
ajax('post','guestbook/index.php','m=index&a=reg&username='+encodeURI(ousername1.value)+'&password=' + opassword1.value,function (data)
{
var d = JSON.parse(data);
alert(d.message);
});
}
//用户注册结束
//用户登录开始
var ousername2 = document.getElementById('username2');
var opassword2 = document.getElementById('password2');
var obtnLogin = document.getElementById('btnLogin');
obtnLogin.onclick = function ()
{
ajax('post','guestbook/index.php','m=index&a=login&username='+encodeURI(ousername2.value)+'&password=' + opassword2.value,function (data)
{
var d = JSON.parse(data);
alert(d.message);
if(!d.code)
{
updata();
}
});
}
//用户登录结束
//用户退出开始
var ologout = document.getElementById('logout')
ologout.onclick = function ()
{
ajax('get','guestbook/index.php','m=index&a=logout',function (data)
{
var d = JSON.parse(data);
alert(d.message);
if(!d.code)
{
updata();
}
});
return false;
}
//用户退出结束
//用户留言开始
var ocontent = document.getElementById('content');
var obtnPost = document.getElementById('btnPost');
obtnPost.onclick = function ()
{
ajax('post','guestbook/index.php','m=index&a=send&content='+encodeURI(ocontent.value),function (data)
{
var d = JSON.parse(data);
alert(d.message);
if(!d.code)
{
createList(d.data,true);
}
})
}
//用户留言结束
var olist = document.getElementById('list');
function createList(data,insert)
{
var odl = document.createElement('dl');
var odt = document.createElement('dt');
var ostrong = document.createElement('strong');
ostrong.innerHTML = data.username;
odt.appendChild(ostrong);
var odd1 = document.createElement('dd');
odd1.innerHTML = data.content;
var odd2 = document.createElement('dd');
odd2.className = 't';
var oa1 = document.createElement('a');
oa1.href ='';
oa1.innerHTML = '顶(<span>'+data.support+'</span>)';
var oa2 = document.createElement('a');
oa2.href = '';
oa2.innerHTML = '踩(<span>'+data.oppose+'</span>)';
odd2.appendChild(oa1);
odd2.appendChild(oa2);
odl.appendChild(odt);
odl.appendChild(odd1);
odl.appendChild(odd2);
if(insert && olist.children[0])
{
olist.insertBefore(odl,olist.children[0]);
}
else
{
olist.appendChild(odl);
}
}
//点击查看更多内容
var oshowMore = document.getElementById('showMore');
var ipage = 1;
oshowMore.onclick = function ()
{
ipage++;
showlist();
}
function showlist()
{
ajax('get','guestbook/index.php','m=index&a=getList&n=2&pages=' + ipage,function (data)
{
var d = JSON.parse(data);
var data = d.data;
if(data)
{
for(var i = 0; i < data.list.length; i++ )
{
createList(data.list[i]);
}
}
else
{
if(ipage == 1)
{
olist.innerHTML = '现在还没有留言，快来请沙发...';
}
oshowMore.style.display = 'none';
}
})
}
//获取cookie
function getCookie(key)
{
var arr1 = document.cookie.split('; ');
for (var i=0; i<arr1.length; i++)
{
var arr2 = arr1[i].split('=');
if (arr2[0]==key)
{
return arr2[1];
}
}
}
}
</script>
</head>
<body>
<div id="header"></div>
<div id="container">
<div id="list">
<!--<dl>
<dt>
<strong>zmouse</strong> 说 :
</dt>
<dd>内容</dd>
<dd class="t">
<a href="javascript:;" id="support">顶(<span>0</span>)</a>
|
<a href="javascript:;" id="oppose">踩(<span>0</span>)</a>
</dd>
</dl>-->
</div>
<div id="showMore">显示更多...</div>
<div id="sidebar">
<div id="user" style="margin-bottom: 10px;">
<h4><span id="userinfo"></span> <a href="" id="logout">退出</a></h4>
</div>
<!-- 注册 -->
<div id="reg">
<h4>注册</h4>
<div>
<p>用户名：<input type="text" name="username" id="username1"></p>
<p id="verifyUserNameMsg"></p>
<p>密码：<input type="password" name="password" id="password1"></p>
<p><input type="button" value="注册" id="btnReg" /></p>
</div>
</div>
<!-- 登陆 -->
<div id="login">
<h4>登陆</h4>
<div>
<p>用户名：<input type="text" name="username2" id="username2"></p>
<p>密码：<input type="password" name="password2" id="password2"></p>
<p><input type="button" value="登陆" id="btnLogin" /></p>
</div>
</div>
<!-- 留言发表 -->
<div id="sendBox">
<h4>发表留言</h4>
<div>
<textarea id="content"></textarea>
<input type="button" value="提交" class="btn1" id="btnPost" />
</div>
</div>
</div>
</div>
</body>
</html>
<?php
/**
* @ controller Index.class.php
* @ zmouse@vip.qq.com
*/
defined('IN_APP') or exit('Denied Access!');
class IndexController extends Controller {
public function index() {
echo '<p>欢迎</p>';
//$result = $this->db->get("select * from users", 1);
//dump($result);
}
/**
* @ interface 用户名验证
*/
public function verifyUserName() {
$username = trim(isset($_REQUEST['username']) ? $_REQUEST['username'] : '');
switch ($this->_verifyUserName($username)) {
case 0:
$this->sendByAjax(array('message'=>'恭喜你，该用户名可以注册！'));
break;
case 1:
$this->sendByAjax(array('code'=>1,'message'=>'用户名长度不能小于3个或大于16个字符！'));
break;
case 2:
$this->sendByAjax(array('code'=>2,'message'=>'对不起，该用户名已经被注册了！'));
break;
default:
break;
}
}
/**
* @ interface 用户注册
*/
public function reg() {
$username = trim(isset($_REQUEST['username']) ? $_REQUEST['username'] : '');
$password = trim(isset($_REQUEST['password']) ? $_REQUEST['password'] : '');
$avatar = trim(isset($_REQUEST['avatar']) && in_array($_REQUEST['avatar'], array(1,2,3,4,5,6,7,8,9)) ? intval($_REQUEST['avatar']) : 1);
if ($this->_verifyUserName($username) !== 0 || strlen($password)<3 || strlen($password) > 20) {
$this->sendByAjax(array('code'=>1,'message'=>'注册失败！'));
}
$password = md5($password);
if (false === $this->db->query("INSERT INTO `users` (`username`, `password`, `avatar`) VALUES ('{$username}', '{$password}', {$avatar})")) {
$this->sendByAjax(array('code'=>1,'message'=>'注册失败！'));
} else {
$this->sendByAjax(array('message'=>'注册成功！'));
}
}
/**
* @ 用户登陆
*/
public function login() {
$username = trim(isset($_REQUEST['username']) ? $_REQUEST['username'] : '');
$password = trim(isset($_REQUEST['password']) ? $_REQUEST['password'] : '');
if (isset($_COOKIE['uid'])) {
$this->sendByAjax(array('code'=>1,'message'=>'你已经登陆过了！'));
}
if ($rs = $this->db->get("SELECT * FROM `users` WHERE `username`='{$username}'")) {
if ($rs['password'] != md5($password)) {
$this->sendByAjax(array('code'=>1,'message'=>'登陆失败！'));
} else {
setcookie('uid', $rs['uid'], time() + 3600*60, '/');
setcookie('username', $rs['username'], time() + 3600*60, '/');
$this->sendByAjax(array('code'=>0,'message'=>'登陆成功！'));
}
} else {
$this->sendByAjax(array('code'=>1,'message'=>'登陆失败！'));
}
}
/**
* @ 用户退出
*/
public function logout() {
if (!isset($_COOKIE['uid'])) {
$this->sendByAjax(array('code'=>1,'message'=>'你还没有登陆！'));
} else {
setcookie('uid', 0, time() - 3600*60, '/');
$this->sendByAjax(array('code'=>0,'message'=>'退出成功！'));
}
}
/**
* 用户留言保存
*/
public function send() {
if (!isset($_COOKIE['uid'])) {
$this->sendByAjax(array('code'=>1,'message'=>'你还没有登陆！'));
} else {
$content = trim(isset($_POST['content']) ? $_POST['content'] : '');
if (empty($content)) {
$this->sendByAjax(array('code'=>1,'message'=>'留言内容不能为空！'));
}
$dateline = time();
$this->db->query("INSERT INTO `contents` (`uid`, `content`, `dateline`) VALUES ({$_COOKIE['uid']}, '{$content}', {$dateline})");
$returnData = array(
'cid' => $this->db->getInsertId(),
'uid' => $_COOKIE['uid'],
'username' => $_COOKIE['username'],
'content' => $content,
'dateline' => $dateline,
'support' => 0,
'oppose' => 0,
);
$this->sendByAjax(array('code'=>0,'message'=>'留言成功！','data'=>$returnData));
}
}
/**
* @ 顶
*/
public function doSupport() {
if (!isset($_COOKIE['uid'])) {
$this->sendByAjax(array('code'=>1,'message'=>'你还没有登陆！'));
} else {
$cid = isset($_REQUEST['cid']) ? intval($_REQUEST['cid']) : 0;
if (!$cid) $this->sendByAjax(array('code'=>1,'message'=>'无效留言cid！'));
$content = $this->db->get("SELECT cid FROM `contents` WHERE `cid`={$cid}");
if (!$content) $this->sendByAjax(array('code'=>1,'message'=>'不存在的留言cid！'));
$this->db->query("UPDATE `contents` SET `support`=support+1 WHERE `cid`={$cid}");
$this->sendByAjax(array('code'=>0,'message'=>'顶成功！'));
}
}
/**
* @ 踩
*/
public function doOppose() {
if (!isset($_COOKIE['uid'])) {
$this->sendByAjax(array('code'=>1,'message'=>'你还没有登陆！'));
} else {
$cid = isset($_REQUEST['cid']) ? intval($_REQUEST['cid']) : 0;
if (!$cid) $this->sendByAjax(array('code'=>1,'message'=>'无效留言cid！'));
$content = $this->db->get("SELECT cid FROM `contents` WHERE `cid`={$cid}");
if (!$content) $this->sendByAjax(array('code'=>1,'message'=>'不存在的留言cid！'));
$this->db->query("UPDATE `contents` SET `oppose`=oppose+1 WHERE `cid`={$cid}");
$this->sendByAjax(array('code'=>0,'message'=>'踩成功！'));
}
}
/**
* @ 获取留言列表
*/
public function getList() {
$page = isset($_REQUEST['page']) ? intval($_REQUEST['page']) : 1; //当前页数
$n = isset($_REQUEST['n']) ? intval($_REQUEST['n']) : 10; //每页显示条数
//获取总记录数
$result_count = $this->db->get("SELECT count('cid') as count FROM `contents`");
$count = $result_count['count'] ? (int) $result_count['count'] : 0;
if (!$count) {
$this->sendByAjax(array('code'=>1,'message'=>'还没有任何留言！'));
}
$pages = ceil($count / $n);
if ($page > $pages) {
$this->sendByAjax(array('code'=>2,'message'=>'没有数据了！'));
}
$start = ( $page - 1 ) * $n;
$result = $this->db->select("SELECT c.cid,c.uid,u.username,c.content,c.dateline,c.support,c.oppose FROM `contents` as c, `users` as u WHERE u.uid=c.uid ORDER BY c.cid DESC LIMIT {$start},{$n}");
$data = array(
'count' => $count,
'pages' => $pages,
'page' => $page,
'n' => $n,
'list' => $result
);
$this->sendByAjax(array('code'=>0,'message'=>'','data'=>$data));
}
/**
* @ 用户名验证
*/
private function _verifyUserName($username='') {
if (strlen($username) < 3 || strlen($username) > 16) {
return 1;
}
$rs = $this->db->get("SELECT `username` FROM `users` WHERE `username`='{$username}'");
if ($rs) return 2;
return 0;
}
}