Merge remote-tracking branch 'origin/master' into gs-master

Conflicts:
 	.travis.yml
 	Gemfile.lock
 	README.md
 	app/controllers/settings/follower_domains_controller.rb
 	app/controllers/statuses_controller.rb
 	app/javascript/mastodon/locales/ja.json
 	app/lib/feed_manager.rb
 	app/models/media_attachment.rb
 	app/models/mute.rb
 	app/models/status.rb
 	app/services/mute_service.rb
 	app/views/home/index.html.haml
 	app/views/stream_entries/_simple_status.html.haml
 	config/locales/ca.yml
 	config/locales/en.yml
 	config/locales/es.yml
 	config/locales/fr.yml
 	config/locales/nl.yml
 	config/locales/pl.yml
 	config/locales/pt-BR.yml
 	config/themes.yml

config/initializers/http_client_proxy.rb

@@ -0,0 +1,24 @@
+Rails.application.configure do
+  config.x.http_client_proxy = {}
+  if ENV['http_proxy'].present?
+    proxy = URI.parse(ENV['http_proxy'])
+    raise "Unsupported proxy type: #{proxy.scheme}" unless %w(http https).include? proxy.scheme
+    raise "No proxy host" unless proxy.host
+
+    host = proxy.host
+    host = host[1...-1] if host[0] == '[' #for IPv6 address
+    config.x.http_client_proxy[:proxy] = { proxy_address: host, proxy_port: proxy.port, proxy_username: proxy.user, proxy_password: proxy.password }.compact
+  end
+
+  config.x.access_to_hidden_service = ENV['ALLOW_ACCESS_TO_HIDDEN_SERVICE'] == 'true'
+  config.x.hidden_service_via_transparent_proxy = ENV['HIDDEN_SERVICE_VIA_TRANSPARENT_PROXY'] == 'true'
+end
+
+module Goldfinger
+  def self.finger(uri, opts = {})
+    to_hidden = /\.(onion|i2p)(:\d+)?$/.match(uri)
+    raise Mastodon::HostValidationError, 'Instance does not support hidden service connections' if !Rails.configuration.x.access_to_hidden_service && to_hidden
+    opts = opts.merge(Rails.configuration.x.http_client_proxy).merge(ssl: !to_hidden)
+    Goldfinger::Client.new(uri, opts).finger
+  end
+end

config/initializers/json_ld.rb

@@ -1,5 +0,0 @@
-# frozen_string_literal: true
-
-require_relative '../../lib/json_ld/identity'
-require_relative '../../lib/json_ld/security'
-require_relative '../../lib/json_ld/activitystreams'

config/initializers/oembed.rb

@@ -1,4 +0,0 @@
-# frozen_string_literal: true
-
-require_relative '../../app/lib/provider_discovery'
-OEmbed::Providers.register_fallback(ProviderDiscovery)

config/initializers/rack_attack.rb

@@ -53,6 +53,10 @@ class Rack::Attack
     req.ip if req.api_request?
   end
 
+  throttle('throttle_media', limit: 30, period: 30.minutes) do |req|
+    req.authenticated_user_id if req.post? && req.path.start_with?('/api/v1/media')
+  end
+
   throttle('protected_paths', limit: 25, period: 5.minutes) do |req|
     req.ip if req.post? && req.path =~ PROTECTED_PATHS_REGEX
   end