Rack 获取基于会话的 cookie 时出错
我的网络应用程序使用的是 Rack 1.4.0、Sinatra v1.2.6、Thin v1.2.11、Ruby v1.9.2p180
导航到页面时我在日志中收到此错误：
TypeError - can't convert nil into String:
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/cookie.rb:152:in `hexdigest'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/cookie.rb:152:in `generate_hmac'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/cookie.rb:109:in `unpacked_cookie_data'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/cookie.rb:99:in `extract_session_id'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:43:in `load_session_id!'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:32:in `[]'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:262:in `current_session_id'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:268:in `session_exists?'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:107:in `exists?'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:122:in `load_for_read!'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:59:in `[]'
/var/www/phrogz.net/routes/test.rb:8:in `logged_in?'
test.rb 第 8 行中的代码是：
session[ :foo ] == "BAR"
有关的任何建议升级/降级什么来解决这个问题？
My web app is using Rack 1.4.0, Sinatra v1.2.6, Thin v1.2.11, Ruby v1.9.2p180
Navigating to a page I get this error in the log:
TypeError - can't convert nil into String:
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/cookie.rb:152:in `hexdigest'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/cookie.rb:152:in `generate_hmac'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/cookie.rb:109:in `unpacked_cookie_data'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/cookie.rb:99:in `extract_session_id'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:43:in `load_session_id!'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:32:in `[]'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:262:in `current_session_id'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:268:in `session_exists?'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:107:in `exists?'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:122:in `load_for_read!'
/usr/local/lib/ruby/gems/1.9.1/gems/rack-1.4.0/lib/rack/session/abstract/id.rb:59:in `[]'
/var/www/phrogz.net/routes/test.rb:8:in `logged_in?'
The code in test.rb line 8 is:
session[ :foo ] == "BAR"
Any suggestions on what to upgrade/downgrade to fix this?
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您似乎遇到了此问题。该修复已在 Rack 1.4.1 中进行，因此只需升级即可修复该问题。
Looks like you run into this issue. The fix is in Rack 1.4.1 so simply upgrading should fix it.