我有一个php登录,用户输入用户名/密码,它会根据登录信息检查mysql数据库。如果经过身份验证,则会通过php创建会话,用户现在可以使用php会话访问系统。我的问题是,一旦他们通过php / session进行身份验证,授权用户查看他们是否具有使用socket.io访问nodejs服务器的正确登录权限的过程是什么?我不希望这个人有权访问nodejs / socket.io函数/服务器,除非他们通过php登录进行了身份验证。
答案 0 :(得分:62)
要求:
var express = require('express'),
app = express.createServer(),
sio = require('socket.io'),
redis = require("redis"),
client = redis.createClient(),
io = null;
/**
* Used to parse cookie
*/
function parse_cookies(_cookies) {
var cookies = {};
_cookies && _cookies.split(';').forEach(function( cookie ) {
var parts = cookie.split('=');
cookies[ parts[ 0 ].trim() ] = ( parts[ 1 ] || '' ).trim();
});
return cookies;
}
app.listen(3000, "localhost");
io = sio.listen(app);
io.of('/private').authorization(function (handshakeData, callback) {
var cookies = parse_cookies(handshakeData.headers.cookie);
client.get(cookies.PHPSESSID, function (err, reply) {
handshakeData.identity = reply;
callback(false, reply !== null);
});
}).on('connection' , function (socket) {
socket.emit('identity', socket.handshake.identity);
});
php with openid authentication => http://dl.dropbox.com/u/314941/6503745/php.tar.gz
登录后,您必须重新加载client.php
以进行身份验证
p.s:我真的不喜欢创建另一个可能不安全的密码的概念。我建议您查看openID(例如,通过Google),Facebook Connect(仅举几个选项)。
我的问题是,一旦他们进行身份验证 通过php / session会是什么 验证用户的过程 看看他们是否有正确的登录信息 访问nodejs服务器的权限 用socket.io?我不想要这个人 有权访问nodejs / socket.io 功能/服务器,除非他们有 通过php登录验证。
将唯一session_id添加到允许ID的列表/集合中,以便socket.io可以authorize(搜索授权功能)该连接。我会让PHP使用redis与node.js进行通信,因为这将是闪电般的快速/真棒:)。现在我正在伪造来自redis-cli
Download redis =>现在可以从http://redis.googlecode.com/files/redis-2.2.11.tar.gz
下载稳定版本alfred@alfred-laptop:~$ mkdir ~/6502031
alfred@alfred-laptop:~/6502031$ cd ~/6502031/
alfred@alfred-laptop:~/6502031$ tar xfz redis-2.2.11.tar.gz
alfred@alfred-laptop:~/6502031$ cd redis-2.2.11/src
alfred@alfred-laptop:~/6502031/redis-2.2.11/src$ make # wait couple of seconds
alfred@alfred-laptop:~/6502031/redis-2.2.11/src$ ./redis-server
如果尚未安装npm
,请先访问http://npmjs.org
npm install express
npm install socket.io
npm install redis
列出我已经安装的依赖项,如果根据npm ls
alfred@alfred-laptop:~/node/socketio-demo$ npm ls
/home/alfred/node/socketio-demo
├─┬ express@2.3.12
│ ├── connect@1.5.1
│ ├── mime@1.2.2
│ └── qs@0.1.0
├── hiredis@0.1.12
├── redis@0.6.0
└─┬ socket.io@0.7.2
├── policyfile@0.0.3
└── socket.io-client@0.7.2
var express = require('express'),
app = express.createServer(),
sio = require('socket.io'),
redis = require("redis"),
client = redis.createClient(),
io = null;
/**
* Used to parse cookie
*/
function parse_cookies(_cookies) {
var cookies = {};
_cookies && _cookies.split(';').forEach(function( cookie ) {
var parts = cookie.split('=');
cookies[ parts[ 0 ].trim() ] = ( parts[ 1 ] || '' ).trim();
});
return cookies;
}
app.listen(3000, "localhost");
io = sio.listen(app);
io.configure(function () {
function auth (data, fn) {
var cookies = parse_cookies(data.headers.cookie);
console.log('PHPSESSID: ' + cookies.PHPSESSID);
client.sismember('sid', cookies.PHPSESSID, function (err , reply) {
fn(null, reply);
});
};
io.set('authorization', auth);
});
io.sockets.on('connection', function (socket) {
socket.emit('access', 'granted');
});
要运行服务器,只需运行node server.js
<?php
session_start();
echo "<h1>SID: " . session_id() . "</h1>";
?>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js"></script>
<script src="http://localhost:3000/socket.io/socket.io.js"></script>
</head>
<body>
<p id="text">access denied</p>
<script>
var socket = io.connect('http://localhost:3000/');
socket.on('access', function (data) {
$("#text").html(data);
});
</script>
</body>
当您从网络浏览器加载网页(PHP文件)时,会显示消息access denied
,但当您将浏览器中显示的session_id
添加到redis服务器时,会显示消息{{1将显示。当然,通常你不会做任何复制粘贴,只是让PHP直接与Redis通信。。但是对于此演示,您将把SID access granted
放入redis,然后授予访问权限。
ramom807vt1io3sqvmc8m4via1
答案 1 :(得分:8)
请记住,会话只是存储在php会话目录中的文件。 node.js从cookie中获取会话ID并检查会话目录中是否确实存在会话ID也不成问题。要获取sessions目录的路径,请参阅php.ini中的 session.save_path 指令。
答案 2 :(得分:0)
这里是unserialize和utf8代码,如果你也想要它,最初是从phpjs.org派生的 - 必须编辑一下才能使它与node.js一起工作所以如果你想要进行比较并进行比较
function utf8_decode (str_data) {
// http://kevin.vanzonneveld.net
// + original by: Webtoolkit.info (http://www.webtoolkit.info/)
// + input by: Aman Gupta
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: Norman "zEh" Fuchs
// + bugfixed by: hitwork
// + bugfixed by: Onno Marsman
// + input by: Brett Zamir (http://brett-zamir.me)
// + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// * example 1: utf8_decode('Kevin van Zonneveld');
// * returns 1: 'Kevin van Zonneveld'
var tmp_arr = [],
i = 0,
ac = 0,
c1 = 0,
c2 = 0,
c3 = 0;
str_data += '';
while (i < str_data.length) {
c1 = str_data.charCodeAt(i);
if (c1 < 128) {
tmp_arr[ac++] = String.fromCharCode(c1);
i++;
} else if (c1 > 191 && c1 < 224) {
c2 = str_data.charCodeAt(i + 1);
tmp_arr[ac++] = String.fromCharCode(((c1 & 31) << 6) | (c2 & 63));
i += 2;
} else {
c2 = str_data.charCodeAt(i + 1);
c3 = str_data.charCodeAt(i + 2);
tmp_arr[ac++] = String.fromCharCode(((c1 & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
i += 3;
}
}
return tmp_arr.join('');
}
exports.utf8_decode = utf8_decode;
function unserialize (data) {
// http://kevin.vanzonneveld.net
// + original by: Arpad Ray (mailto:arpad@php.net)
// + improved by: Pedro Tainha (http://www.pedrotainha.com)
// + bugfixed by: dptr1988
// + revised by: d3x
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + input by: Brett Zamir (http://brett-zamir.me)
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: Chris
// + improved by: James
// + input by: Martin (http://www.erlenwiese.de/)
// + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: Le Torbi
// + input by: kilops
// + bugfixed by: Brett Zamir (http://brett-zamir.me)
// - depends on: utf8_decode
// % note: We feel the main purpose of this function should be to ease the transport of data between php & js
// % note: Aiming for PHP-compatibility, we have to translate objects to arrays
// * example 1: unserialize('a:3:{i:0;s:5:"Kevin";i:1;s:3:"van";i:2;s:9:"Zonneveld";}');
// * returns 1: ['Kevin', 'van', 'Zonneveld']
// * example 2: unserialize('a:3:{s:9:"firstName";s:5:"Kevin";s:7:"midName";s:3:"van";s:7:"surName";s:9:"Zonneveld";}');
// * returns 2: {firstName: 'Kevin', midName: 'van', surName: 'Zonneveld'}
var that = this;
var utf8Overhead = function (chr) {
// http://phpjs.org/functions/unserialize:571#comment_95906
var code = chr.charCodeAt(0);
if (code < 0x0080) {
return 0;
}
if (code < 0x0800) {
return 1;
}
return 2;
};
var error = function (type, msg, filename, line) {
console.log('[[[[[[[[[[[[[[[[[[ERROR]]]]]]]]]]]]]]]]]]]','msg:', msg, 'filename:',filename, 'line:',line);
};
var read_until = function (data, offset, stopchr) {
if (stopchr == ';' && !data.match(/;$/)) data += ';';
var buf = [];
var chr = data.slice(offset, offset + 1);
var i = 2;
while (chr != stopchr) {
if ((i + offset) > data.length) {
error('Error', 'Invalid','php.js','126');
}
buf.push(chr);
chr = data.slice(offset + (i - 1), offset + i);
i += 1;
//console.log('i:',i,'offset:',offset, 'data:',data,'chr:',chr,'stopchr:',stopchr);
}
return [buf.length, buf.join('')];
};
var read_chrs = function (data, offset, length) {
var buf;
buf = [];
for (var i = 0; i < length; i++) {
var chr = data.slice(offset + (i - 1), offset + i);
buf.push(chr);
length -= utf8Overhead(chr);
}
return [buf.length, buf.join('')];
};
var _unserialize = function (data, offset) {
var readdata;
var readData;
var chrs = 0;
var ccount;
var stringlength;
var keyandchrs;
var keys;
if (!offset) {
offset = 0;
}
var dtype = (data.slice(offset, offset + 1)).toLowerCase();
var dataoffset = offset + 2;
var typeconvert = function (x) {
return x;
};
switch (dtype) {
case 'i':
typeconvert = function (x) {
return parseInt(x, 10);
};
readData = read_until(data, dataoffset, ';');
chrs = readData[0];
readdata = readData[1];
dataoffset += chrs + 1;
break;
case 'b':
typeconvert = function (x) {
return parseInt(x, 10) !== 0;
};
readData = read_until(data, dataoffset, ';');
chrs = readData[0];
readdata = readData[1];
dataoffset += chrs + 1;
break;
case 'd':
typeconvert = function (x) {
return parseFloat(x);
};
readData = read_until(data, dataoffset, ';');
chrs = readData[0];
readdata = readData[1];
dataoffset += chrs + 1;
break;
case 'n':
readdata = null;
break;
case 's':
ccount = read_until(data, dataoffset, ':');
chrs = ccount[0];
stringlength = ccount[1];
dataoffset += chrs + 2;
readData = read_chrs(data, dataoffset + 1, parseInt(stringlength, 10));
chrs = readData[0];
readdata = readData[1];
dataoffset += chrs + 2;
if (chrs != parseInt(stringlength, 10) && chrs != readdata.length) {
error('SyntaxError', 'String length mismatch','php.js','206');
}
// Length was calculated on an utf-8 encoded string
// so wait with decoding
readdata = utf8_decode(readdata);
break;
case 'a':
readdata = {};
keyandchrs = read_until(data, dataoffset, ':');
chrs = keyandchrs[0];
keys = keyandchrs[1];
dataoffset += chrs + 2;
for (var i = 0; i < parseInt(keys, 10); i++) {
var kprops = _unserialize(data, dataoffset);
var kchrs = kprops[1];
var key = kprops[2];
dataoffset += kchrs;
var vprops = _unserialize(data, dataoffset);
var vchrs = vprops[1];
var value = vprops[2];
dataoffset += vchrs;
readdata[key] = value;
}
dataoffset += 1;
break;
default:
error('SyntaxError', 'Unknown / Unhandled data type(s): ' + dtype,'php.js','238');
break;
}
return [dtype, dataoffset - offset, typeconvert(readdata)];
};
return _unserialize((data + ''), 0)[2];
}
exports.unserialize = unserialize;
答案 3 :(得分:0)
我在这里查看解决方案,并决定提供rcode所说的尝试,因为它似乎比巨大的代码墙接受答案容易得多。
它最终很好地工作并且很容易做到。
我最终安装了一些我想避免的依赖项,但是对于节点来说相对容易。
在控制台中输入以下内容:
npm install cookie
npm install php-unserialize
此解决方案使用计算机上的会话文件 - 您不应该更改此行。
session.save_handler = files
^你的php.ini文件中应该是这样的(默认)。
(人们建议使用memcache,但切换到该系统似乎很头疼。)
以下是检索会话数据的超级简单代码:
var cookie = require('cookie');
var fs = require('fs');
var phpUnserialize = require('php-unserialize');
//This should point to your php session directory.
//My php.ini says session.save_path = "${US_ROOTF}/tmp"
var SESS_PATH = "C:/SomeDirectory/WhereYourPHPIs/tmp/";
io.on('connection', function(socket) {
//I just check if cookies are a string - may be better method
if(typeof socket.handshake.headers.cookie === "string") {
var sid = cookie.parse(socket.handshake.headers.cookie);
if(typeof sid.PHPSESSID === "undefined") {
console.log("Undefined PHPSESSID");
}
else {
console.log("PHP Session ID: " + sid.PHPSESSID);
fs.readFile(SESS_PATH + "sess_" + sid.PHPSESSID, 'utf-8', function(err,data) {
if(!err) {
console.log("Session Data:");
var sd = phpUnserialize.unserializeSession(data);
console.log(sd);
}
else {
console.log(err);
}
});
}
}
}
<强>结果:强>
编辑:我只是想补充一点,当有人登录并传递凭据时,让PHP告诉您的Node.js服务器可能更容易。
我在另一个答案中解释了如何轻松地做到这一点。