rails子域名cookie共享

https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/4818-share-session-between-subdomains#ticket-4818-3

Share session between subdomains

Reported by Guillermo Álvarez | June 10th, 2010 @ 10:58 AM

Sessions cookies don't hace domain, so by default navigators use current HTTP_HOSTS.

If you want to share session between www.example.com and username.example.com you can't.

The next patch resolve this problem by adding a domain option in session_store initializar.

The syntax is:

<code class="ruby">  Rails.application.config.session_store <span class="symbol">:cookie_store</span>, <span class="symbol">:key</span> => <span class="string">'_app_session'</span>, <span class="symbol">:domain</span> => <span class="symbol">:all</span></code> 

Comments and changes to this ticket

• Guillermo Álvarez June 10th, 2010 @ 11:03 AM

  Here is the patch.

  • add_host_option_to_cookie_session_store.patch 3.8 KB
• Guillermo Álvarez June 10th, 2010 @ 11:25 AM

  This patch is so simple, and just cover most of the cases i know, so for most complicated cases like 3th level domain, you must be explicit. For example:

  If you want to share session between *.google.co.uk you do:

  <code class="ruby">  Rails.application.config.session_store <span class="symbol">:cookie_store</span>, <span class="symbol">:key</span> => <span class="string">'_app_session'</span>, <span class="symbol">:domain</span> => <span class="string">".google.co.uk"</span></code> 

永久性cookie
http://www.thoughtrails.com/episodes/36-signed-and-permanent-cookies-in-rails3