diff options
Diffstat (limited to 'actionpack/lib/action_dispatch/http/cache.rb')
-rw-r--r-- | actionpack/lib/action_dispatch/http/cache.rb | 49 |
1 files changed, 26 insertions, 23 deletions
diff --git a/actionpack/lib/action_dispatch/http/cache.rb b/actionpack/lib/action_dispatch/http/cache.rb index 747d295261..08ebd2e8b2 100644 --- a/actionpack/lib/action_dispatch/http/cache.rb +++ b/actionpack/lib/action_dispatch/http/cache.rb @@ -8,13 +8,13 @@ module ActionDispatch HTTP_IF_NONE_MATCH = 'HTTP_IF_NONE_MATCH'.freeze def if_modified_since - if since = env[HTTP_IF_MODIFIED_SINCE] + if since = get_header(HTTP_IF_MODIFIED_SINCE) Time.rfc2822(since) rescue nil end end def if_none_match - env[HTTP_IF_NONE_MATCH] + get_header HTTP_IF_NONE_MATCH end def if_none_match_etags @@ -51,41 +51,45 @@ module ActionDispatch end module Response - attr_reader :cache_control, :etag - alias :etag? :etag + attr_reader :cache_control def last_modified - if last = headers[LAST_MODIFIED] + if last = get_header(LAST_MODIFIED) Time.httpdate(last) end end def last_modified? - headers.include?(LAST_MODIFIED) + have_header? LAST_MODIFIED end def last_modified=(utc_time) - headers[LAST_MODIFIED] = utc_time.httpdate + set_header LAST_MODIFIED, utc_time.httpdate end def date - if date_header = headers[DATE] + if date_header = get_header(DATE) Time.httpdate(date_header) end end def date? - headers.include?(DATE) + have_header? DATE end def date=(utc_time) - headers[DATE] = utc_time.httpdate + set_header DATE, utc_time.httpdate end def etag=(etag) key = ActiveSupport::Cache.expand_cache_key(etag) - @etag = self[ETAG] = %("#{Digest::MD5.hexdigest(key)}") + set_header ETAG, %("#{Digest::MD5.hexdigest(key)}") + end + + def etag + get_header ETAG end + alias :etag? :etag private @@ -96,7 +100,7 @@ module ActionDispatch SPECIAL_KEYS = Set.new(%w[extras no-cache max-age public must-revalidate]) def cache_control_segments - if cache_control = self[CACHE_CONTROL] + if cache_control = get_header(CACHE_CONTROL) cache_control.delete(' ').split(',') else [] @@ -123,12 +127,11 @@ module ActionDispatch def prepare_cache_control! @cache_control = cache_control_headers - @etag = self[ETAG] end def handle_conditional_get! if etag? || last_modified? || !@cache_control.empty? - set_conditional_cache_control! + set_conditional_cache_control!(@cache_control) end end @@ -138,24 +141,24 @@ module ActionDispatch PRIVATE = "private".freeze MUST_REVALIDATE = "must-revalidate".freeze - def set_conditional_cache_control! + def set_conditional_cache_control!(cache_control) control = {} cc_headers = cache_control_headers if extras = cc_headers.delete(:extras) - @cache_control[:extras] ||= [] - @cache_control[:extras] += extras - @cache_control[:extras].uniq! + cache_control[:extras] ||= [] + cache_control[:extras] += extras + cache_control[:extras].uniq! end control.merge! cc_headers - control.merge! @cache_control + control.merge! cache_control if control.empty? - headers[CACHE_CONTROL] = DEFAULT_CACHE_CONTROL + set_header CACHE_CONTROL, DEFAULT_CACHE_CONTROL elsif control[:no_cache] - headers[CACHE_CONTROL] = NO_CACHE + set_header CACHE_CONTROL, NO_CACHE if control[:extras] - headers[CACHE_CONTROL] += ", #{control[:extras].join(', ')}" + set_header(CACHE_CONTROL, get_header(CACHE_CONTROL) + ", #{control[:extras].join(', ')}") end else extras = control[:extras] @@ -167,7 +170,7 @@ module ActionDispatch options << MUST_REVALIDATE if control[:must_revalidate] options.concat(extras) if extras - headers[CACHE_CONTROL] = options.join(", ") + set_header CACHE_CONTROL, options.join(", ") end end end |