diff options
Diffstat (limited to 'actionview/lib/action_view/helpers/csrf_helper.rb')
| -rw-r--r-- | actionview/lib/action_view/helpers/csrf_helper.rb | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/actionview/lib/action_view/helpers/csrf_helper.rb b/actionview/lib/action_view/helpers/csrf_helper.rb new file mode 100644 index 0000000000..5af92c4ff2 --- /dev/null +++ b/actionview/lib/action_view/helpers/csrf_helper.rb @@ -0,0 +1,33 @@ +module ActionView + # = Action View CSRF Helper + module Helpers + module CsrfHelper + # Returns meta tags "csrf-param" and "csrf-token" with the name of the cross-site + # request forgery protection parameter and token, respectively. + # + # <head> + # <%= csrf_meta_tags %> + # </head> + # + # These are used to generate the dynamic forms that implement non-remote links with + # <tt>:method</tt>. + # + # You don't need to use these tags for regular forms as they generate their own hidden fields. + # + # For AJAX requests other than GETs, extract the "csrf-token" from the meta-tag and send as the + # "X-CSRF-Token" HTTP header. If you are using jQuery with jquery-rails this happens automatically. + # + def csrf_meta_tags + if protect_against_forgery? + [ + tag('meta', :name => 'csrf-param', :content => request_forgery_protection_token), + tag('meta', :name => 'csrf-token', :content => form_authenticity_token) + ].join("\n").html_safe + end + end + + # For backwards compatibility. + alias csrf_meta_tag csrf_meta_tags + end + end +end |