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-rw-r--r--actionpack/lib/action_dispatch/http/request.rb7
1 files changed, 7 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/http/request.rb b/actionpack/lib/action_dispatch/http/request.rb
index fd23b1df79..5606d6abfe 100644
--- a/actionpack/lib/action_dispatch/http/request.rb
+++ b/actionpack/lib/action_dispatch/http/request.rb
@@ -15,6 +15,8 @@ module ActionDispatch
include ActionDispatch::Http::Upload
include ActionDispatch::Http::URL
+ LOCALHOST = [/^127\.0\.0\.\d{1,3}$/, "::1", /^0:0:0:0:0:0:0:1(%.*)?$/].freeze
+
%w[ AUTH_TYPE GATEWAY_INTERFACE
PATH_TRANSLATED REMOTE_HOST
REMOTE_IDENT REMOTE_USER REMOTE_ADDR
@@ -231,5 +233,10 @@ module ActionDispatch
@env['X_HTTP_AUTHORIZATION'] ||
@env['REDIRECT_X_HTTP_AUTHORIZATION']
end
+
+ # True if the request came from localhost, 127.0.0.1.
+ def local?
+ LOCALHOST.any? { |local_ip| local_ip === remote_addr && local_ip === remote_ip }
+ end
end
end