TL; DR:
无法成功执行跨多个API调用的会话 在Backbone App和带有Express的Node.js服务器之间, Express-Session和Express-Cors。看起来会话重新初始化/丢失 每次通话后。
长版:
我正在localhost:3000
上运行客户端Backbone / React / Flux应用程序,在localhost:4242
上运行的Node.js服务器上执行以下调用:
Http调用
RESPONSE HEADERS
Content-Type application/json; charset=utf-8
Set-Cookie connect.sid=s%3AFeNYY5GQGvkyRvOym7DhysprePaQr7xP.BrxOPP56k9pDpxQPvwjDFaxkEYoHU%2FAEtNUIXGltqjI; Domain=http://localhost:3000; Path=/
Vary Origin
X-Powered-By Express
access-control-allow-credentials true
access-control-allow-orign http://localhost:3000
[...]
REQUEST HEADERS
Accept application/json, text/javascript, */*; q=0.01
Content-Type application/json; charset=utf-8
Cookie connect.sid=s%3AjP4iADZvRnDHbJcCE8H81Zy6TIehj9BJ.eDOTw44GcHqq8i2dslBGd43tXMQ22ENl31fRizdC8iA
Host localhost:4242
Origin http://localhost:3000
Referer http://localhost:3000/login
[...]
RESPONSE HEADERS
Content-Type application/json; charset=utf-8
Set-Cookie connect.sid=s%3ARxf91_vLMBqzB6xN-0QFIIk_-SyBP9_8.F1Mr%2BVSkYNJ6MqnzO%2BsxxfwXRinIX6th80SoukG1QBM;Domain=http://localhost:3000; Path=/
Vary Origin
X-Powered-By Express
access-control-allow-credentials true
access-control-allow-orign http://localhost:3000
[...]
REQUEST HEADERS
Accept application/json, text/javascript, */*; q=0.01
Content-Type application/json; charset=utf-8
Cookie connect.sid=s%3AjP4iADZvRnDHbJcCE8H81Zy6TIehj9BJ.eDOTw44GcHqq8i2dslBGd43tXMQ22ENl31fRizdC8iA
Host localhost:4242
Origin http://localhost:3000
Referer http://localhost:3000/login
[...]
基本上,第一个调用POST /api/session
正在登录用户并尝试在会话中存储API令牌。
第二个调用GET /api/users
在第一个调用成功后立即触发,并检索用户信息。
骨干方法
这是我登录的Session模型的Backbone方法:
login: (options) ->
@set {user: options.user, password: options.password}
@save ['user', 'password'],
success: (data) =>
@set({authenticated: true, accessToken: data.accessToken, password: null})
options.success(data) # trigger the second call here
error: (error) =>
options.error(error)
在我的UserStore中调用/ api / users
users: (options) ->
@users.fetch
success: (users) =>
@users = users
options.success(users)
使用这些不同的选项(我在Backbone.Collection / Backbone.Model中重写了Backbone.sync):
class UsersCollection extends Backbone.Collection
url: '/api/users'
model: UserModel
sync: (method, model, options) ->
options ?= {}
options.url ?= @url
options.dataType ?= 'json'
options.contentType ?= "application/json; charset=utf-8"
options.crossDomain ?= true
options.xhrFields ?= {"withCredentials": true}
super(method, model, options)
(简化版:同样适用于Models和Collection,使用BaseCollection和BaseModel,我覆盖了sync()方法)。
Console.log(options)
中的Backbone.sync(method, model, options)
正在返回:
{"url":"http://localhost:4242/api/session","dataType":"json","contentType":"application/json; charset=utf-8","crossDomain":true,"validate":true,"parse":true,"xhrFields":{"withCredentials":true}}
Node.js设置和方法
这是我的Node.js路由器设置Express:
BodyParser = require 'body-parser'
Session = require 'express-session'
Cors = require 'cors'
class Router
constructor: (express) ->
@express = express
@express.use BodyParser.json()
@express.use Cors(@corsConfig())
@express.use Session(@sessionConfig())
# Express routes are set here
# @express.post '/api/session', (request, response) => [...]
# @express.get '/api/users', (request, response) => [...]
corsConfig: ->
origin: 'http://localhost:3000'
credentials: true
sessionConfig: ->
secret: 'whatever'
cookie:
secure: false
httpOnly: false
domain: 'http://localhost:3000'
这是我处理POST /api/session
login: (request, response) ->
session = request.session
console.log JSON.stringify(session)
console.log request.sessionID
console.log '---------------------------------------------'
if session.accessToken
console.log 'session with token!'
response.json {accessToken: session.accessToken}
else
console.log 'performing credentialAuthentication'
user = request.body.user
password = request.body.password
@whatever.authentication
user: user
password: password
success: (accessToken) ->
request.session.accessToken = accessToken
console.log JSON.stringify(session)
console.log request.sessionID
console.log '---------------------------------------------!!!'
response.json {accessToken: accessToken}
# also tried with response.send()
处理GET /api/users
@express.get '/api/users', (request, response) =>
console.log JSON.stringify(request.session)
console.log request.sessionID
console.log '---------------------------------------------'
[...]
Node.js记录
这是日志:
express:router dispatching OPTIONS /api/session
express:router dispatching POST /api/session
{"cookie":{"originalMaxAge":null,"expires":null,"secure":false,"httpOnly":false,"path":"/"}}
zse18d2zrNRdEXPjFHF0gm3NkONb-_5V
---------------------------------------------
performing credentialAuthentication
{"cookie":{"originalMaxAge":null,"expires":null,"secure":false,"httpOnly":false,"path":"/"},
"accessToken":"ebab5010f9ece5ea984e4b73f9a46ef3"}
zse18d2zrNRdEXPjFHF0gm3NkONb-_5V
---------------------------------------------!!!
express:router dispatching GET /api/users
{"cookie":{"originalMaxAge":null,"expires":null,"secure":false,"httpOnly":false,"path":"/"}}
g8YXQEpt_rnWSGdh1nCKMndiI8Lt2UDq
---------------------------------------------
正如您所看到的,CORS请求正常运行,我正在获取令牌,然后尝试将其存储在会话中。
但是在第二次调用中,会话没有保留,我无法访问我在第一次调用时实际设置的变量(accessToken)。
查看两个调用的日志和HTTP标头,看起来会话每次重新初始化,因为会话ID正在更改并且每个请求 - 并且每次都发送一个Set-Request标头(不应该是这样的,据我所知)。
我怀疑这种行为是由CORS级别的一些不连贯或缺失的配置引起的,或者是由于path
和Express.use(path, middleware)
的{{1}}设置引起的。然而,尽管许多尝试使用不同的配置,设置和标题,我真的无法使其工作。
任何能够启发我这种行为以及我所缺少的人都非常欢迎:) 谢谢!
PS:我向非CoffeeScript开发人员道歉;)
答案 0 :(得分:4)
这是答案(简单的答案):
我错误配置了我的Session中间件; cookie.domain
选项导致了问题。
这是正确的配置:
sessionConfig: ->
secret: 'whatever'
cookie:
secure: false
httpOnly: false
这个选项对于快速/会话中间件不是必需的/现有的(不再是?);不知道为什么我最初使用它,可能来自过时的引用(表达/ cookie-parser或express / cors)。