Drop the old output_compression plugin

The production servers all have mod_deflate enabled anyway, which
almost certainly does a better job of compression than this.

app/controllers/api_controller.rb

@@ -2,7 +2,6 @@ class ApiController < ApplicationController
   skip_before_action :verify_authenticity_token
   before_action :check_api_readable, :except => [:capabilities]
   before_action :setup_user_auth, :only => [:permissions]
-  after_action :compress_output
   around_action :api_call_handle_error, :api_call_timeout
 
   # Get an XML response containing a list of tracepoints that have been uploaded

app/controllers/changeset_controller.rb

@@ -14,7 +14,6 @@ class ChangesetController < ApplicationController
   before_action :check_api_writable, :only => [:create, :update, :delete, :upload, :include, :comment, :subscribe, :unsubscribe, :hide_comment, :unhide_comment]
   before_action :check_api_readable, :except => [:create, :update, :delete, :upload, :download, :query, :list, :feed, :comment, :subscribe, :unsubscribe, :comments_feed]
   before_action(:only => [:list, :feed, :comments_feed]) { |c| c.check_database_readable(true) }
-  after_action :compress_output
   around_action :api_call_handle_error, :except => [:list, :feed, :comments_feed]
   around_action :web_timeout, :only => [:list, :feed, :comments_feed]
 

app/controllers/node_controller.rb

@@ -9,7 +9,6 @@ class NodeController < ApplicationController
   before_action :require_public_data, :only => [:create, :update, :delete]
   before_action :check_api_writable, :only => [:create, :update, :delete]
   before_action :check_api_readable, :except => [:create, :update, :delete]
-  after_action :compress_output
   around_action :api_call_handle_error, :api_call_timeout
 
   # Create a node from XML.

app/controllers/notes_controller.rb

@@ -9,7 +9,6 @@ class NotesController < ApplicationController
   before_action :check_api_writable, :only => [:create, :comment, :close, :reopen, :destroy]
   before_action :require_allow_write_notes, :only => [:create, :comment, :close, :reopen, :destroy]
   before_action :set_locale
-  after_action :compress_output
   around_action :api_call_handle_error, :api_call_timeout
 
   ##

app/controllers/old_controller.rb

@@ -11,7 +11,6 @@ class OldController < ApplicationController
   before_action :require_allow_write_api, :only => [:redact]
   before_action :check_api_readable
   before_action :check_api_writable, :only => [:redact]
-  after_action :compress_output
   around_action :api_call_handle_error, :api_call_timeout
   before_action :lookup_old_element, :except => [:history]
   before_action :lookup_old_element_versions, :only => [:history]

app/controllers/relation_controller.rb

@@ -7,7 +7,6 @@ class RelationController < ApplicationController
   before_action :require_public_data, :only => [:create, :update, :delete]
   before_action :check_api_writable, :only => [:create, :update, :delete]
   before_action :check_api_readable, :except => [:create, :update, :delete]
-  after_action :compress_output
   around_action :api_call_handle_error, :api_call_timeout
 
   def create

app/controllers/search_controller.rb

@@ -3,7 +3,6 @@ class SearchController < ApplicationController
   # Can search by tag k, v, or both (type->k,value->v)
   # Can search by name (k=name,v=....)
   skip_before_action :verify_authenticity_token
-  after_action :compress_output
 
   def search_all
     do_search(true, true, true)

app/controllers/way_controller.rb

@@ -7,7 +7,6 @@ class WayController < ApplicationController
   before_action :require_public_data, :only => [:create, :update, :delete]
   before_action :check_api_writable, :only => [:create, :update, :delete]
   before_action :check_api_readable, :except => [:create, :update, :delete]
-  after_action :compress_output
   around_action :api_call_handle_error, :api_call_timeout
 
   def create

config/initializers/output_compression.rb

@@ -1 +0,0 @@
-require "output_compression/output_compression"

lib/output_compression/LICENSE

@@ -1,19 +0,0 @@
-Copyright (c) 2004-2007 Jeremy Evans
-
-Permission is hereby granted, free of charge, to any person obtaining a copy 
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights 
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
-copies of the Software, and to permit persons to whom the Software is 
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in 
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
-SOFTWARE.

lib/output_compression/README

@@ -1,10 +0,0 @@
-OutputCompression
-=================
-
-Allows gzip output compression to clients that support it. Simple to use, just
-put after_filter :compress_output in your controller. Pulled out of the Google
-cache and packaged into plugin form, code originally hosted at
-http://www.tuxsoft.se/oss/rails/download/output_compression.rb.
-
-    svn: svn://code.jeremyevans.net/rails/plugins/output_compression
-    file: http://code.jeremyevans.net/code/output_compression.tar.gz

lib/output_compression/output_compression.rb

@@ -1,68 +0,0 @@
-# OutputCompression
-# Rails output compression filters
-#
-# Adds two classmethods to ActionController that can be used as after-filters:
-# strip_whitespace and compress_output.
-# If you use page-caching, you MUST specify the compress_output filter AFTER
-# caches_page, otherwise the compressed data will be cached instead of the HTML
-#
-# class MyController < ApplicationController
-#  after_filter :strip_whitespace
-#  caches_page :index
-#  after_filter :compress_output
-# end
-
-begin
-  require "zlib"
-  require "stringio"
-  GZIP_SUPPORTED = true
-rescue
-  GZIP_SUPPORTED = false
-end
-
-module CompressionSystem
-  def compress_output
-    return unless accepts_gzip?
-    output = StringIO.new
-    def output.close
-      # Zlib does a close. Bad Zlib...
-      rewind
-    end
-    gz = Zlib::GzipWriter.new(output)
-    gz.write(response.body)
-    gz.close
-    if output.length < response.body.length
-      @old_response_body = response.body
-      response.body = output.string
-      response.headers["Content-encoding"] = @compression_encoding
-    end
-  end
-
-  def accepts_gzip?
-    return false unless GZIP_SUPPORTED
-    accepts = request.env["HTTP_ACCEPT_ENCODING"]
-    return false unless accepts && accepts =~ /(x-gzip|gzip)/
-    @compression_encoding = $1
-    true
-  end
-
-  def strip_whitespace
-    response.body.gsub!(/()|(.*?<\/script>)|()|()|\s+/m) do |m|
-      if m =~ /^()(.*?)<\/script>$/m
-        $1 + $2.strip.gsub(/\s+/, " ").gsub("", "\n-->") + ""
-      elsif m =~ /^$/m
-        ""
-      elsif m =~ /^<(textarea|pre)/
-        m
-      else " "
-      end
-    end
-    response.body.gsub! /\s+\s+/, ">"
-  end
-end
-
-module ActionController
-  class Base
-    include CompressionSystem
-  end
-end