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test_app.rb
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test_app.rb
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#--
# Copyright (c) 2011-2015 David Kellum
# Copyright (c) 2010-2011 Don Werve
#
# Licensed under the Apache License, Version 2.0 (the "License"); you
# may not use this file except in compliance with the License. You may
# obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied. See the License for the specific language governing
# permissions and limitations under the License.
#++
require 'json'
# A tiny Rack application for testing the Fishwife webserver. Each of
# the following paths can be used to test webserver behavior:
#
# /ping:: Always returns 200 OK.
#
# /error/:number:: Returns the HTTP status code specified in the path.
#
# /echo:: Returns a plaintext rendering of the original request.
#
# /file:: Returns a file for downloading.
#
# /push:: Publishes a message to async listeners.
#
# /pull:: Recieves messages sent via /push using async.
#
# A request to any endpoint not listed above will return a 404 error.
class TestApp
def initialize
@subscribers = Array.new
end
def call(env)
begin
request = Rack::Request.new(env)
method = request.path[/^\/(\w+)/, 1]
return(error(request, 404)) if (method.nil? or method.empty?)
return(error(request, 404)) unless respond_to?(method.to_sym)
send(method.to_sym, request)
rescue => error
puts error
puts error.backtrace
error(nil, 500)
end
end
def ping(request)
[ 200, { "Content-Type" => "text/plain",
"Content-Length" => "2" }, [ "OK" ] ]
end
def error(request, code = nil)
code ||= (request.path[/^\/\w+\/(\d+)/, 1] or "500")
[ code.to_i,
{ "Content-Type" => "text/plain",
"Content-Length" => "5" },
[ "ERROR" ] ]
end
def echo(request)
response = Rack::Response.new
env = request.env.merge('request.params' => request.params)
response.write(env.to_json)
response.finish
end
def dcount(request)
inp = request.env['rack.input']
dc = inp.read.length
inp.rewind
dc += inp.read.length
[ 200, {}, [ dc.to_s ] ]
end
def multi_headers(request)
[ 204, { "Warning" => %w[ warn-1 warn-2 ].join( "\n" ) }, [] ]
end
def push(request)
message = request.params['message']
@subscribers.reject! do |subscriber|
begin
response = Rack::Response.new
if(message.empty?)
subscriber.call(response.finish)
next(true)
else
response.write(message)
subscriber.call(response.finish)
next(false)
end
rescue java.io.IOException => error
next(true)
end
end
ping(request)
end
def pull(request)
@subscribers << request.env['async.callback']
throw(:async)
end
def download(request)
file = File.new( File.dirname( __FILE__ ) + "/data/reddit-icon.png" )
def file.to_path
path
end
[ 200, { "Content-Type" => "image/png" }, file ]
end
def upload(request)
data = request.params['file'][:tempfile].read
checksum = Digest::MD5.hexdigest(Base64.decode64(data))
response = Rack::Response.new
response.write(checksum)
response.finish
end
end