aboutsummaryrefslogtreecommitdiffstats
path: root/actionpack/lib/action_dispatch/http
diff options
context:
space:
mode:
Diffstat (limited to 'actionpack/lib/action_dispatch/http')
-rw-r--r--actionpack/lib/action_dispatch/http/cache.rb12
-rw-r--r--actionpack/lib/action_dispatch/http/headers.rb16
-rw-r--r--actionpack/lib/action_dispatch/http/mime_type.rb103
-rw-r--r--actionpack/lib/action_dispatch/http/mime_types.rb1
-rw-r--r--actionpack/lib/action_dispatch/http/request.rb2
-rw-r--r--actionpack/lib/action_dispatch/http/response.rb10
6 files changed, 90 insertions, 54 deletions
diff --git a/actionpack/lib/action_dispatch/http/cache.rb b/actionpack/lib/action_dispatch/http/cache.rb
index 30ade14c26..4bd727c14e 100644
--- a/actionpack/lib/action_dispatch/http/cache.rb
+++ b/actionpack/lib/action_dispatch/http/cache.rb
@@ -80,9 +80,17 @@ module ActionDispatch
set_header DATE, utc_time.httpdate
end
+ # This method allows you to set the ETag for cached content, which
+ # will be returned to the end user.
+ #
+ # By default, Action Dispatch sets all ETags to be weak.
+ # This ensures that if the content changes only semantically,
+ # the whole page doesn't have to be regenerated from scratch
+ # by the web server. With strong ETags, pages are compared
+ # byte by byte, and are regenerated only if they are not exactly equal.
def etag=(etag)
key = ActiveSupport::Cache.expand_cache_key(etag)
- super %("#{Digest::MD5.hexdigest(key)}")
+ super %(W/"#{Digest::MD5.hexdigest(key)}")
end
def etag?; etag; end
@@ -91,7 +99,7 @@ module ActionDispatch
DATE = 'Date'.freeze
LAST_MODIFIED = "Last-Modified".freeze
- SPECIAL_KEYS = Set.new(%w[extras no-cache max-age public must-revalidate])
+ SPECIAL_KEYS = Set.new(%w[extras no-cache max-age public private must-revalidate])
def cache_control_segments
if cache_control = _cache_control
diff --git a/actionpack/lib/action_dispatch/http/headers.rb b/actionpack/lib/action_dispatch/http/headers.rb
index 12f81dc1a5..8e899174c6 100644
--- a/actionpack/lib/action_dispatch/http/headers.rb
+++ b/actionpack/lib/action_dispatch/http/headers.rb
@@ -2,9 +2,23 @@ module ActionDispatch
module Http
# Provides access to the request's HTTP headers from the environment.
#
- # env = { "CONTENT_TYPE" => "text/plain" }
+ # env = { "CONTENT_TYPE" => "text/plain", "HTTP_USER_AGENT" => "curl/7.43.0" }
# headers = ActionDispatch::Http::Headers.new(env)
# headers["Content-Type"] # => "text/plain"
+ # headers["User-Agent"] # => "curl/7/43/0"
+ #
+ # Also note that when headers are mapped to CGI-like variables by the Rack
+ # server, both dashes and underscores are converted to underscores. This
+ # ambiguity cannot be resolved at this stage anymore. Both underscores and
+ # dashes have to be interpreted as if they were originally sent as dashes.
+ #
+ # # GET / HTTP/1.1
+ # # ...
+ # # User-Agent: curl/7.43.0
+ # # X_Custom_Header: token
+ #
+ # headers["X_Custom_Header"] # => nil
+ # headers["X-Custom-Header"] # => "token"
class Headers
CGI_VARIABLES = Set.new(%W[
AUTH_TYPE
diff --git a/actionpack/lib/action_dispatch/http/mime_type.rb b/actionpack/lib/action_dispatch/http/mime_type.rb
index b8d395854c..4672ea7199 100644
--- a/actionpack/lib/action_dispatch/http/mime_type.rb
+++ b/actionpack/lib/action_dispatch/http/mime_type.rb
@@ -1,3 +1,5 @@
+# -*- frozen-string-literal: true -*-
+
require 'singleton'
require 'active_support/core_ext/module/attribute_accessors'
require 'active_support/core_ext/string/starts_ends_with'
@@ -31,7 +33,7 @@ module Mime
SET = Mimes.new
EXTENSION_LOOKUP = {}
- LOOKUP = Hash.new { |h, k| h[k] = Type.new(k) unless k.blank? }
+ LOOKUP = {}
class << self
def [](type)
@@ -106,70 +108,58 @@ module Mime
result = @index <=> item.index if result == 0
result
end
-
- def ==(item)
- @name == item.to_s
- end
end
- class AcceptList < Array #:nodoc:
- def assort!
- sort!
+ class AcceptList #:nodoc:
+ def self.sort!(list)
+ list.sort!
+
+ text_xml_idx = find_item_by_name list, 'text/xml'
+ app_xml_idx = find_item_by_name list, Mime[:xml].to_s
# Take care of the broken text/xml entry by renaming or deleting it
if text_xml_idx && app_xml_idx
+ app_xml = list[app_xml_idx]
+ text_xml = list[text_xml_idx]
+
app_xml.q = [text_xml.q, app_xml.q].max # set the q value to the max of the two
- exchange_xml_items if app_xml_idx > text_xml_idx # make sure app_xml is ahead of text_xml in the list
- delete_at(text_xml_idx) # delete text_xml from the list
+ if app_xml_idx > text_xml_idx # make sure app_xml is ahead of text_xml in the list
+ list[app_xml_idx], list[text_xml_idx] = text_xml, app_xml
+ app_xml_idx, text_xml_idx = text_xml_idx, app_xml_idx
+ end
+ list.delete_at(text_xml_idx) # delete text_xml from the list
elsif text_xml_idx
- text_xml.name = Mime[:xml].to_s
+ list[text_xml_idx].name = Mime[:xml].to_s
end
# Look for more specific XML-based types and sort them ahead of app/xml
if app_xml_idx
+ app_xml = list[app_xml_idx]
idx = app_xml_idx
- while idx < length
- type = self[idx]
+ while idx < list.length
+ type = list[idx]
break if type.q < app_xml.q
if type.name.ends_with? '+xml'
- self[app_xml_idx], self[idx] = self[idx], app_xml
- @app_xml_idx = idx
+ list[app_xml_idx], list[idx] = list[idx], app_xml
+ app_xml_idx = idx
end
idx += 1
end
end
- map! { |i| Mime::Type.lookup(i.name) }.uniq!
- to_a
+ list.map! { |i| Mime::Type.lookup(i.name) }.uniq!
+ list
end
- private
- def text_xml_idx
- @text_xml_idx ||= index('text/xml')
- end
-
- def app_xml_idx
- @app_xml_idx ||= index(Mime[:xml].to_s)
- end
-
- def text_xml
- self[text_xml_idx]
- end
-
- def app_xml
- self[app_xml_idx]
- end
-
- def exchange_xml_items
- self[app_xml_idx], self[text_xml_idx] = text_xml, app_xml
- @app_xml_idx, @text_xml_idx = text_xml_idx, app_xml_idx
- end
+ def self.find_item_by_name(array, name)
+ array.index { |item| item.name == name }
+ end
end
class << self
- TRAILING_STAR_REGEXP = /(text|application)\/\*/
+ TRAILING_STAR_REGEXP = /^(text|application)\/\*/
PARAMETER_SEPARATOR_REGEXP = /;\s*\w+="?\w+"?/
def register_callback(&block)
@@ -177,7 +167,7 @@ module Mime
end
def lookup(string)
- LOOKUP[string]
+ LOOKUP[string] || Type.new(string)
end
def lookup_by_extension(extension)
@@ -209,21 +199,22 @@ module Mime
accept_header = accept_header.split(PARAMETER_SEPARATOR_REGEXP).first
parse_trailing_star(accept_header) || [Mime::Type.lookup(accept_header)].compact
else
- list, index = AcceptList.new, 0
+ list, index = [], 0
accept_header.split(',').each do |header|
params, q = header.split(PARAMETER_SEPARATOR_REGEXP)
- if params.present?
- params.strip!
- params = parse_trailing_star(params) || [params]
+ next unless params
+ params.strip!
+ next if params.empty?
+
+ params = parse_trailing_star(params) || [params]
- params.each do |m|
- list << AcceptItem.new(index, m.to_s, q)
- index += 1
- end
+ params.each do |m|
+ list << AcceptItem.new(index, m.to_s, q)
+ index += 1
end
end
- list.assort!
+ AcceptList.sort! list
end
end
@@ -255,9 +246,12 @@ module Mime
end
end
+ attr_reader :hash
+
def initialize(string, symbol = nil, synonyms = [])
@symbol, @synonyms = symbol, synonyms
@string = string
+ @hash = [@string, @synonyms, @symbol].hash
end
def to_s
@@ -291,6 +285,13 @@ module Mime
end
end
+ def eql?(other)
+ super || (self.class == other.class &&
+ @string == other.string &&
+ @synonyms == other.synonyms &&
+ @symbol == other.symbol)
+ end
+
def =~(mime_type)
return false unless mime_type
regexp = Regexp.new(Regexp.quote(mime_type.to_s))
@@ -303,6 +304,10 @@ module Mime
def all?; false; end
+ protected
+
+ attr_reader :string, :synonyms
+
private
def to_ary; end
diff --git a/actionpack/lib/action_dispatch/http/mime_types.rb b/actionpack/lib/action_dispatch/http/mime_types.rb
index 87715205d9..8356d1a238 100644
--- a/actionpack/lib/action_dispatch/http/mime_types.rb
+++ b/actionpack/lib/action_dispatch/http/mime_types.rb
@@ -14,6 +14,7 @@ Mime::Type.register "image/jpeg", :jpeg, [], %w(jpg jpeg jpe pjpeg)
Mime::Type.register "image/gif", :gif, [], %w(gif)
Mime::Type.register "image/bmp", :bmp, [], %w(bmp)
Mime::Type.register "image/tiff", :tiff, [], %w(tif tiff)
+Mime::Type.register "image/svg+xml", :svg
Mime::Type.register "video/mpeg", :mpeg, [], %w(mpg mpeg mpe)
diff --git a/actionpack/lib/action_dispatch/http/request.rb b/actionpack/lib/action_dispatch/http/request.rb
index 29cf821090..5427425ef7 100644
--- a/actionpack/lib/action_dispatch/http/request.rb
+++ b/actionpack/lib/action_dispatch/http/request.rb
@@ -259,7 +259,7 @@ module ActionDispatch
end
# Returns the IP address of client as a +String+,
- # usually set by the RemoteIp middleware.
+ # usually set by the RemoteIp middleware.
def remote_ip
@remote_ip ||= (get_header("action_dispatch.remote_ip") || ip).to_s
end
diff --git a/actionpack/lib/action_dispatch/http/response.rb b/actionpack/lib/action_dispatch/http/response.rb
index 9b11111a67..fa4c54701a 100644
--- a/actionpack/lib/action_dispatch/http/response.rb
+++ b/actionpack/lib/action_dispatch/http/response.rb
@@ -1,5 +1,6 @@
require 'active_support/core_ext/module/attribute_accessors'
require 'action_dispatch/http/filter_redirect'
+require 'action_dispatch/http/cache'
require 'monitor'
module ActionDispatch # :nodoc:
@@ -232,7 +233,7 @@ module ActionDispatch # :nodoc:
end
# Sets the HTTP character set. In case of nil parameter
- # it sets the charset to utf-8.
+ # it sets the charset to utf-8.
#
# response.charset = 'utf-16' # => 'utf-16'
# response.charset = nil # => 'utf-8'
@@ -412,6 +413,13 @@ module ActionDispatch # :nodoc:
end
def before_sending
+ # Normally we've already committed by now, but it's possible
+ # (e.g., if the controller action tries to read back its own
+ # response) to get here before that. In that case, we must force
+ # an "early" commit: we're about to freeze the headers, so this is
+ # our last chance.
+ commit! unless committed?
+
headers.freeze
request.commit_cookie_jar! unless committed?
end