diff options
Diffstat (limited to 'actionpack/lib/action_dispatch/http/response.rb')
-rw-r--r-- | actionpack/lib/action_dispatch/http/response.rb | 100 |
1 files changed, 85 insertions, 15 deletions
diff --git a/actionpack/lib/action_dispatch/http/response.rb b/actionpack/lib/action_dispatch/http/response.rb index b1b70f7d61..f0127aa276 100644 --- a/actionpack/lib/action_dispatch/http/response.rb +++ b/actionpack/lib/action_dispatch/http/response.rb @@ -32,6 +32,29 @@ module ActionDispatch # :nodoc: # end # end class Response + class Header < DelegateClass(Hash) # :nodoc: + def initialize(response, header) + @response = response + super(header) + end + + def []=(k,v) + if @response.sending? || @response.sent? + raise ActionDispatch::IllegalStateError, 'header already sent' + end + + super + end + + def merge(other) + self.class.new @response, __getobj__.merge(other) + end + + def to_hash + __getobj__.dup + end + end + # The request that the response is responding to. attr_accessor :request @@ -55,6 +78,10 @@ module ActionDispatch # :nodoc: cattr_accessor(:default_headers) include Rack::Response::Helpers + # Aliasing these off because AD::Http::Cache::Response defines them + alias :_cache_control :cache_control + alias :_cache_control= :cache_control= + include ActionDispatch::Http::FilterRedirect include ActionDispatch::Http::Cache::Response include MonitorMixin @@ -103,18 +130,25 @@ module ActionDispatch # :nodoc: end end + def self.create(status = 200, header = {}, body = [], default_headers: self.default_headers) + header = merge_default_headers(header, default_headers) + new status, header, body + end + + def self.merge_default_headers(original, default) + default.respond_to?(:merge) ? default.merge(original) : original + end + # The underlying body, as a streamable object. attr_reader :stream - def initialize(status = 200, header = {}, body = [], default_headers: self.class.default_headers) + def initialize(status = 200, header = {}, body = []) super() - header = merge_default_headers(header, default_headers) - @header = header + @header = Header.new(self, header) self.body, self.status = body, status - @blank = false @cv = new_cond @committed = false @sending = false @@ -125,7 +159,7 @@ module ActionDispatch # :nodoc: yield self if block_given? end - def have_header?(key); headers.key? key; end + def has_header?(key); headers.key? key; end def get_header(key); headers[key]; end def set_header(key, v); headers[key] = v; end def delete_header(key); headers.delete key; end @@ -248,12 +282,12 @@ module ActionDispatch # :nodoc: @stream.body end - EMPTY = " " + def write(string) + @stream.write string + end # Allows you to manually set or override the response body. def body=(body) - @blank = true if body == EMPTY - if body.respond_to?(:to_path) @stream = body else @@ -263,6 +297,40 @@ module ActionDispatch # :nodoc: end end + # Avoid having to pass an open file handle as the response body. + # Rack::Sendfile will usually intercept the response and uses + # the path directly, so there is no reason to open the file. + class FileBody #:nodoc: + attr_reader :to_path + + def initialize(path) + @to_path = path + end + + def body + File.binread(to_path) + end + + # Stream the file's contents if Rack::Sendfile isn't present. + def each + File.open(to_path, 'rb') do |file| + while chunk = file.read(16384) + yield chunk + end + end + end + end + + # Send the file stored at +path+ as the response body. + def send_file(path) + commit! + @stream = FileBody.new(path) + end + + def reset_body! + @stream = build_buffer(self, []) + end + def body_parts parts = [] @stream.each { |x| parts << x } @@ -340,15 +408,12 @@ module ActionDispatch # :nodoc: return if committed? assign_default_content_type_and_charset! handle_conditional_get! + handle_no_content! end def before_sending end - def merge_default_headers(original, default) - default.respond_to?(:merge) ? default.merge(original) : original - end - def build_buffer(response, body) Buffer.new response, body end @@ -361,7 +426,7 @@ module ActionDispatch # :nodoc: return if content_type ct = parse_content_type - set_content_type(ct.mime_type || Mime::Type[:HTML].to_s, + set_content_type(ct.mime_type || Mime[:html].to_s, ct.charset || self.class.default_charset) end @@ -401,10 +466,15 @@ module ActionDispatch # :nodoc: end end + def handle_no_content! + if NO_CONTENT_CODES.include?(@status) + @header.delete CONTENT_TYPE + @header.delete 'Content-Length' + end + end + def rack_response(status, header) if NO_CONTENT_CODES.include?(status) - header.delete CONTENT_TYPE - header.delete 'Content-Length' [status, header, []] else [status, header, RackBody.new(self)] |