几个星期以来,我一直在为朋友工作。当我复制代码(并更改了一些路径和链接)以在我的网站上使用框架时,它以某种方式破坏了cookie功能。
我已经看到其他语句必须在页面开头创建cookie,但在这种情况下我不知道如何做到这一点。我有一个登录页面,调用了内容页面。内容页面调用验证页面,该页面负责登录和cookie。或者,在我复制网站之前,它是如何工作的。
我了解到,如果我只浏览登录页面而不是登录页面,它将创建一个cookie,从而可以首先创建cookie。它修复了其他内容,并没有按预期显示,但它可以正常工作。 如果我在目标网页的顶部创建了Cookie,它就会被创建,但我以后无法对其进行编辑,所以这对我没有帮助。
我从互联网上找到了登录代码,并创建了cookie。 信用:http://www.zubrag.com/scripts/
<html>
<link rel="icon" type="image/png" sizes="32x32" href="assets/favicon-
32x32.png">
<head>
<title>
Name
</title>
<style>
#centerpct {
height:300px;
margin-top: 50px;
}
td.big {
line-height: 2;
color:black;
}
a.one:link {color:#29282a;}
a.one:visited {color:#29282a;}
a.one:hover {color:#a06e4e;}
</style>
<script language="javascript" type="text/javascript"
src="get_document.js"></script>
</head>
<body style="background-color:#29282a;color:white;">
<div id="centerpct">
<center>
<a href="www.example.com">
<img src="assets/welcome.jpg" height="250px" width="450px">
</a>
</center>
</div>
<hr size=2px; width=75%;>
<center>
<br>
Welcome.
<br />
<br />
<div style="background-color:white;color:orange;padding: 20px
20px;width:500px; border-style: solid; border-width:5px;border-
color:#a06e4e;">
<center>
<?php
//The below line is required to keep OVERLORD in scope
$USE_OVERLORD = 0;
include("minion.php");
?>
</center>
</div>
<br />
</center>
</body>
<footer>
<center><div style="background-color:white;color:orange;padding: 20px
20px;width:500px; border-style: solid; border-width:5px;border-
color:#a06e4e;">
Click <a class="one"; href="www.example.com/justify.php?logout=1"
>HERE</a> to log out.
</div></center>
</footer>
</html>
START MINION PAGE
<?php include("justify.php"); ?>
<script language="javascript" type="text/javascript" src="get_document.js">
</script>
<form name="frmDocument" method="post" action="get_document.php">
<input type="hidden" name="document_name" value="">
<center>Documents</center>
<hr size=2px; width=100%;>
<table>
<tr>
<td class="big">
</td>
</tr>
<tr>
<td class="big">
<a href="#" onClick="GetDocument('test.doc')">test</a>
</td>
</tr>
</table>
</form>
<?php
if($USE_OVERLORD){
?><hr size=2px; width=100%;>
<center>Other Documents (increased access level)</center>
<hr size=2px; width=100%;>
<tr>
<td class="big">
No documents exist at this time.
</td>
</tr>
<?php }
unset($USE_OVERLORD); ?>
<?php
// Add login/password pairs below, like described above
// NOTE: all rows except last must have comma "," at the end of line
// Also denotes as overlord or minion
include("users.php");
// request login? true - show login and password boxes, false - password box
only
define('USE_USERNAME', true);
// User will be redirected to this page after logout
define('LOGOUT_URL', 'example.com');
// time out after NN minutes of inactivity. Set to 0 to not timeout
define('TIMEOUT_MINUTES', 5);
// This parameter is only useful when TIMEOUT_MINUTES is not zero
// true - timeout time from last activity, false - timeout time from login
define('TIMEOUT_CHECK_ACTIVITY', true);
##################################################################
# SETTINGS END
##################################################################
///////////////////////////////////////////////////////
// do not change code below
///////////////////////////////////////////////////////
// show usage example
// the ?help is important
if(isset($_GET['help'])) {
die('Include following code into every page you would like to protect, at
the very beginning (first line):<br><?php include("' .
str_replace('\\','\\\\',__FILE__) . '"); ?>');
}
// timeout in seconds
$timeout = (TIMEOUT_MINUTES == 0 ? 0 : time() + TIMEOUT_MINUTES * 60);
// logout?
if(isset($_GET['logout'])) {
setcookie("verify", '', $timeout); // clear password;
header('Location: ' . LOGOUT_URL);
exit();
}
if(!function_exists('showLoginPasswordProtect')) {
// show login form
function showLoginPasswordProtect($error_msg) {
?>
<html>
<head>
<title>Please enter password to access this page</title>
<META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE">
<META HTTP-EQUIV="PRAGMA" CONTENT="NO-CACHE">
</head>
<body>
<style>
input { border: 1px solid black; }
</style>
<div style="width:500px; margin-left:auto; margin-right:auto; text-
align:center">
<form method="post">
<h3>Please enter password to access this page</h3>
<font color="red"><?php echo $error_msg; ?></font><br />
<?php if (USE_USERNAME) echo 'Login:<br /><input type="input"
name="access_login" /><br />Password:<br />'; ?>
<input type="password" name="access_password" /><p></p><input
type="submit" name="Submit" value="Submit" />
</form>
<br />
</div>
</body>
</html>
<?php
// stop at this point
die();
}
}
// user provided password
if (isset($_POST['access_password'])) {
$login = isset($_POST['access_login']) ? $_POST['access_login'] : '';
$pass = $_POST['access_password'];
if (!USE_USERNAME && !in_array($pass, $LOGIN_INFORMATION)
|| (USE_USERNAME && ( !array_key_exists($login, $LOGIN_INFORMATION) ||
$LOGIN_INFORMATION[$login] != $pass ) )
) {
showLoginPasswordProtect("Incorrect password.");
}
else {
// set cookie if password was validated
setcookie("verify", md5($login.'%'.$pass), $timeout);
//Check if user is supervisor. If so, make a note of it for later.
if (array_key_exists($_POST['access_login'],$LOGIN_OVERLORD)) {
$USE_OVERLORD = 1;}
// Some programs (like Form1 Bilder) check $_POST array to see if
parameters passed
// So need to clear password protector variables
unset($_POST['access_login']);
unset($_POST['access_password']);
unset($_POST['Submit']);
}
}
else {
// check if password cookie is set
if (!isset($_COOKIE['verify'])) {
showLoginPasswordProtect("");
}
// check if cookie is good
$found = false;
foreach($LOGIN_INFORMATION as $key=>$val) {
$lp = (USE_USERNAME ? $key : '') .'%'.$val;
if ($_COOKIE['verify'] == md5($lp)) {
$found = true;
// prolong timeout
if (TIMEOUT_CHECK_ACTIVITY) {
setcookie("verify", md5($lp), $timeout);
}
break;
}
}
if (!$found) {
showLoginPasswordProtect("");
}
}
?>
答案 0 :(得分:0)
$ cat htdocs/le.cookie.php
<html>
<head>
<?php
ob_start();
echo 'WOT????' . PHP_EOL;
setcookie('tasty', 'cookie');
echo ob_get_clean();
$ curl -D- http://sol.lan/le.cookie.php
HTTP/1.1 200 OK
Date: Thu, 27 Jul 2017 15:33:57 GMT
Server: Apache
X-Powered-By: PHP/5.6.30-pl0-gentoo
Set-Cookie: tasty=cookie
Cache-Control: max-age=0, must-revalidate
Expires: Thu, 27 Jul 2017 15:33:57 GMT
Content-Length: 22
Content-Type: text/html; charset=UTF-8
<html>
<head>
WOT????
在脚本开始生成输出后,您无法设置cookie。这是因为cookie在HTTP响应头中设置。它们来自HTTP响应主体。
这是你不能做的:
<html>
<body>
Hello World
<?php setcookie(...)
输出已经以<html>
开始。
<?php echo 'foobar'; setcookie(...)
输出以echo
开始以下是您可以做的事情:
<?php
ob_start()
?>
<html>
<body>
Hai to yoloz
<?php echo '<p>wot??</p>';
setcookie(...);
echo ob_get_clean();
?>