thinkphp中session跨域问题

文章目录
  1. 1. 问题描述
  2. 2. 分析
  3. 3. 跨子域解决办法
  4. 4. 完全跨域解决办法
    1. 4.1. 获取图片验证码请求
    2. 4.2. 验证验证码请求
    3. 4.3. 再次获取图片验证码请求
    4. 4.4. 三次请求比较
    5. 4.5. 前端jquery设置
    6. 4.6. 后端nginx设置
    7. 4.7. 前端angular设置
  5. 5. nginx配置文件
  6. 6. 后记
  7. 7. 书签

问题描述

《thinkphp实现短信验证注册》中,小编不止记录了短信验证码的实现方法,同时还记录了图片验证码的实现方法。
本地使用,一切正常;后端项目和前端项目都部署到服务器,一切正常;后端项目部署到服务器,并设置允许跨域访问后,本地前端项目使用服务器上后端项目接口时,问题来了:
首先,使用postman测试获取图片验证码接口和验证图片验证码接口,正常。
然后,在html中使用获取图片验证码接口,正常;最后,在JS中使用验证图片验证码接口,出错!!!

分析

通过问题描述,我们看出,问题出现在跨域上。那么,有两种可能,一种是因为跨域设置不正确;一种是因为thinkphp本身的问题。

采用另外一种跨域配置,问题依然存在。那就是thinkphp本身的问题了,经查找资料,问题定位在thinkphp的session跨域上。

跨子域解决办法

其实不管是ThinkPHP还是php本身,在解决session跨域问题的时候都需要设置session.cookie_domain。
针对session跨域这一问题的解决方法主要有以下几种:
第一种情况:如果目录下没有.htaccess这个文件,也就是没有采取url伪静态的话,那么,在conf/config.php的第一行加上:

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ini_set('session.cookie_domain',".domain.com");//跨域访问Session

这时如果你开启了调试,那么可以用!但关闭了调试,就不管用了!

第二种情况:如果你目录下有.htaccess这个文件,那么你在根目录,index.php的第一行加入:

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<?php ini_set('session.cookie_domain',".domain.com");//跨域访问Session
// 应用入口文件
?>

这种方法不管开不开启调试都管用!

然而,我们的问题并不是跨子域的问题,而是完全跨域,所以上述方法无效。

完全跨域解决办法

获取图片验证码请求

查看获取图片验证码的请求信息,Request Headers为:

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Accept:image/webp,image/*,*/*;q=0.8
Accept-Encoding:gzip, deflate, sdch
Accept-Language:zh-CN,zh;q=0.8,en-US;q=0.6,en;q=0.4
Connection:keep-alive
Cookie:pma_lang=zh_CN; pma_collation_connection=utf8_unicode_ci; pma_iv-1=wnpO4gv0eQRW1AMHmGr2ww%3D%3D; pmaUser-1=weZPqS0%2BW7nzFUVHRdqcfA%3D%3D
Host:api.voidking.com
Referer:http://localhost/ajax/ajax.html
User-Agent:Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36

Response Headers为:

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Access-Control-Allow-Origin:*
Cache-Control:post-check=0, pre-check=0
Cache-Control:private, max-age=0, no-store, no-cache, must-revalidate
Connection:keep-alive
Content-Type:image/png
Date:Sun, 27 Nov 2016 12:10:44 GMT
Expires:Thu, 19 Nov 1981 08:52:00 GMT
Pragma:no-cache
Server:nginx
Set-Cookie:PHPSESSID=721t4sqanvsii550m1dk8gq1o3; path=/; domain=.voidking.com
Transfer-Encoding:chunked

验证验证码请求

查看验证验证码的请求信息,Request Headers为:

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Accept:application/json, text/javascript, */*; q=0.01
Accept-Encoding:gzip, deflate
Accept-Language:zh-CN,zh;q=0.8,en-US;q=0.6,en;q=0.4
Connection:keep-alive
Content-Length:9
Content-Type:application/x-www-form-urlencoded; charset=UTF-8
Host:api.voidking.com
Origin:http://localhost
Referer:http://localhost/ajax/ajax.html
User-Agent:Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36

Response Headers为:

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Access-Control-Allow-Origin:*
Cache-Control:no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Connection:keep-alive
Content-Encoding:gzip
Content-Type:text/html; charset=UTF-8
Date:Sun, 27 Nov 2016 12:13:21 GMT
Expires:Thu, 19 Nov 1981 08:52:00 GMT
Pragma:no-cache
Server:nginx
Set-Cookie:PHPSESSID=149t0hhs2icqaaemvp39onkgp4; path=/; domain=.voidking.com
Transfer-Encoding:chunked
Vary:Accept-Encoding

再次获取图片验证码请求

Request Headers为:

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Accept:image/webp,image/*,*/*;q=0.8
Accept-Encoding:gzip, deflate, sdch
Accept-Language:zh-CN,zh;q=0.8,en-US;q=0.6,en;q=0.4
Cache-Control:max-age=0
Connection:keep-alive
Cookie:pma_lang=zh_CN; pma_collation_connection=utf8_unicode_ci; pma_iv-1=wnpO4gv0eQRW1AMHmGr2ww%3D%3D; pmaUser-1=weZPqS0%2BW7nzFUVHRdqcfA%3D%3D; PHPSESSID=721t4sqanvsii550m1dk8gq1o3
Host:api.voidking.com
Referer:http://localhost/ajax/ajax.html
User-Agent:Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36

Response Headers为:

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Access-Control-Allow-Origin:*
Cache-Control:private, max-age=0, no-store, no-cache, must-revalidate
Cache-Control:post-check=0, pre-check=0
Connection:keep-alive
Content-Type:image/png
Date:Sun, 27 Nov 2016 13:26:21 GMT
Expires:Thu, 19 Nov 1981 08:52:00 GMT
Pragma:no-cache
Server:nginx
Transfer-Encoding:chunked

三次请求比较

第一次获取图片验证码请求,Cookie中没有PHPSESSID,所以,返回信息中有Set-Cookie。第二次获取图片验证码请求,Cookie中含有PHPSESSID,所以,返回信息中没有了Set-Cookie。而且第一次请求返回信息Set-Cookie中的PHPSESSID,和第二次请求请求信息Cookie中的PHPSESSID是相同的。

而验证图片验证码的ajax请求,没有Cookie,自然也没有PHPSESSID,所以,返回信息中也有Set-Cookie。

可见,我们需要在前端做一些修改,使之发送请求时带着Cookie。

前端jquery设置

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<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<title>jquery</title>
</head>
<body>
<p>
<img src="http://api.voidking.com/owner-bd/index.php/Home/CheckCode/getPicCode" alt="">
<input type="text" id="picCode">
<input type="button" id="send" value="验证">
</p>
<script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script>
$(function(){
$('#send').click(function(){
//console.log(document.cookie);
$.ajax({
url: 'http://api.voidking.com/owner-bd/index.php/Home/CheckCode/checkPicCode',
type: 'POST',
crossDomain: true,
xhrFields: {
withCredentials: true
},
dataType: 'json',
data: {code: $('#picCode').val()},
success: function(data){
console.log(data);
},
error: function(xhr){
console.log(xhr);
}
});
});
});
</script>
</body>
</html>

请求时报错如下:

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A wildcard '*' cannot be used in the 'Access-Control-Allow-Origin' header when the credentials flag is true. Origin 'http://localhost' is therefore not allowed access. The credentials mode of an XMLHttpRequest is controlled by the withCredentials attribute.

出现了跨域报错,可见后端也需要做一些修改,使之可以接收跨域Cookie。

后端nginx设置

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add_header Access-Control-Allow-Origin http://localhost;
add_header Access-Control-Allow-Credentials true;

注意:
服务器端Access-Control-Allow-Credentials参数为true时,Access-Control-Allow-Origin参数的值不能为*。

后端nginx设置后,jquery的ajax请求正常了,可以携带Cookie,后端正常接收数据并返回数据。

由于angular的ajax请求不同于jquery,所以,我们还需要研究一下angular怎么发送携带Cookie的跨域请求。

前端angular设置

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>angular</title>
<script src="http://cdn.static.runoob.com/libs/angular.js/1.4.6/angular.min.js"></script>
</head>
<body ng-app="myApp" >
<p ng-controller="myCtrl">
<img src="http://api.voidking.com/owner-bd/index.php/Home/CheckCode/getPicCode" alt="">
<input type="text" id="picCode" ng-model="picCode">
<input type="button" ng-click="send()" value="验证">
</p>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope, $http, $httpParamSerializer) {
$scope.send = function(){
$http({
method:'POST',
url:'http://api.voidking.com/owner-bd/index.php/Home/CheckCode/checkPicCode',
headers:{
'Content-Type':'application/x-www-form-urlencoded'
},
withCredentials: true,
dataType: 'json',
data: $httpParamSerializer({code: $scope.picCode})
}).then(function successCallback(response) {
console.log(response.data);
$scope.username = response.data.username;
}, function errorCallback(response) {
console.log(response.data);
});
}
});
</script>

</body>
</html>

nginx配置文件

结合《thinkphp部署到nginx服务器》中nginx的配置,最终nginx配置配置文件nginx.conf文件内容如下:

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error_log  logs/error.log  error ;
pid logs/nginx.pid;
user www;
worker_processes auto;
worker_rlimit_nofile 51200;

events {
use epoll;
worker_connections 51200;
}


http {
client_body_buffer_size 32k;
client_header_buffer_size 2k;
client_max_body_size 2m;
default_type application/octet-stream;
log_not_found off;
server_tokens off;
include mime.types;
gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_http_version 1.0;
gzip_comp_level 2;
gzip_types text/plain text/css text/xml text/javascript application/x-javascript application/xml application/rss+xml application/xhtml+xml application/atom_xml;
gzip_vary on;
#error_page 500 502 503 504 /50x.html;
log_format access '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" $http_x_forwarded_for';

server {
listen 80 default_server;
server_name localhost api.voidking.com;
root /home/wwwroot/;
index index.php index.html index.htm;

add_header Access-Control-Allow-Origin http://localhost;
add_header Access-Control-Allow-Credentials true;

location ~ \.php {
root /home/wwwroot/;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param PHP_VALUE open_basedir=$document_root:/tmp/:/proc/;
include fastcgi_params;
}

}

include vhost/*.conf;

}

后记

至此,大功告成,session跨域问题完美解决。

书签

ThinkPHP框架实现session跨域问题的解决方法
http://www.jb51.net/article/51722.htm

ThinkPHP二级域名session共享问题
http://www.thinkphp.cn/topic/6380.html

php 跨域、跨子域,跨服务器读取session
http://blog.csdn.net/kylinbl/article/details/7634075

跨服务器Session共享的四种方法
http://blog.sina.com.cn/s/blog_5f3d71430100jv7q.html

Angular通过CORS实现跨域方案
https://my.oschina.net/blogshi/blog/303758