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require 'spec_helper'
describe "Subscriber Padding by user agent" do
let(:default_config) do
{
:padding_by_user_agent => "[T|t]est 1,0,508",
:user_agent => nil,
:subscriber_connection_ttl => '1s',
:header_template => nil,
:message_template => nil,
:footer_template => nil
}
end
shared_examples_for "apply padding" do
it "should apply a padding to the header" do
channel = 'ch_test_header_padding'
nginx_run_server(config.merge(:header_template => "0123456789", :padding_by_user_agent => "[T|t]est 1,1024,508:[T|t]est 2,4097,0")) do |conf|
EventMachine.run do
expected_size = conf.header_template.size + header_delta
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 1")
sub_1.callback do
expect(sub_1).to be_http_status(200)
expect(sub_1.response.size).to eql(1100 + expected_size)
expect(sub_1.response).to match padding_pattern
sub_2 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 2")
sub_2.callback do
expect(sub_2).to be_http_status(200)
expect(sub_2.response.size).to eql(4097 + expected_size)
sub_3 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 3")
sub_3.callback do
expect(sub_3).to be_http_status(200)
expect(sub_3.response.size).to eql(expected_size)
EventMachine.stop
end
end
end
end
end
end
it "should apply a padding to the message" do
channel = 'ch_test_message_padding'
body = "0123456789"
nginx_run_server(config) do |conf|
EventMachine.run do
expected_size = body.size + header_delta + body_delta
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 1")
sub_1.callback {
expect(sub_1).to be_http_status(200)
expect(sub_1.response.size).to eql(500 + expected_size)
expect(sub_1.response).to match padding_pattern
sub_2 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 2")
sub_2.callback {
expect(sub_2).to be_http_status(200)
expect(sub_2.response.size).to eql(expected_size)
sub_3 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 3")
sub_3.callback {
expect(sub_3).to be_http_status(200)
expect(sub_3.response.size).to eql(expected_size)
EventMachine.stop
}
publish_message_inline(channel, headers, body)
}
publish_message_inline(channel, headers, body)
}
publish_message_inline(channel, headers, body)
end
end
end
it "should apply a padding to the message with different sizes" do
channel = 'ch_test_message_padding_with_different_sizes'
nginx_run_server(config.merge(:padding_by_user_agent => "[T|t]est 1,0,545"), :timeout => 10) do |conf|
EventMachine.run do
i = 1
expected_padding = 545
expected_size = header_delta + body_delta
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 1")
sub_1.callback do
expect(sub_1).to be_http_status(200)
expect(sub_1.response.size).to eql(expected_padding + i + expected_size)
expect(sub_1.response).to match padding_pattern
i = 105
expected_padding = 600 - ((i/100).to_i * 100)
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 1")
sub_1.callback do
expect(sub_1).to be_http_status(200)
expect(sub_1.response.size).to eql(expected_padding + i + expected_size)
i = 221
expected_padding = 600 - ((i/100).to_i * 100)
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 1")
sub_1.callback do
expect(sub_1).to be_http_status(200)
expect(sub_1.response.size).to eql(expected_padding + i + expected_size)
i = 331
expected_padding = 600 - ((i/100).to_i * 100)
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 1")
sub_1.callback do
expect(sub_1).to be_http_status(200)
expect(sub_1.response.size).to eql(expected_padding + i + expected_size)
i = 435
expected_padding = 600 - ((i/100).to_i * 100)
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 1")
sub_1.callback do
expect(sub_1).to be_http_status(200)
expect(sub_1.response.size).to eql(expected_padding + i + expected_size)
i = 502
expected_padding = 600 - ((i/100).to_i * 100)
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 1")
sub_1.callback do
expect(sub_1).to be_http_status(200)
expect(sub_1.response.size).to eql(expected_padding + i + expected_size)
i = 550
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers.merge("User-Agent" => "Test 1")
sub_1.callback do
expect(sub_1).to be_http_status(200)
expect(sub_1.response.size).to eql(i + expected_size)
EventMachine.stop
end
publish_message_inline(channel, headers, "_" * i)
end
publish_message_inline(channel, headers, "_" * i)
end
publish_message_inline(channel, headers, "_" * i)
end
publish_message_inline(channel, headers, "_" * i)
end
publish_message_inline(channel, headers, "_" * i)
end
publish_message_inline(channel, headers, "_" * i)
end
publish_message_inline(channel, headers, "_" * i)
end
end
end
it "should accept the user agent set by a complex value" do
channel = 'ch_test_user_agent_by_complex_value'
nginx_run_server(config.merge(:padding_by_user_agent => "[T|t]est 1,1024,512", :user_agent => "$arg_ua", :header_template => "0123456789"), :timeout => 10) do |conf|
EventMachine.run do
expected_size = conf.header_template.size + header_delta
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s + '?ua=test%201').get :head => headers
sub_1.callback do
expect(sub_1).to be_http_status(200)
expect(sub_1.response.size).to eql(1024 + expected_size)
expect(sub_1.response).to match padding_pattern
sub_2 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s + '?ua=test%202').get :head => headers
sub_2.callback do
expect(sub_2).to be_http_status(200)
expect(sub_2.response.size).to eql(expected_size)
EventMachine.stop
end
end
end
end
end
end
describe "for non EventSource mode" do
let(:config) { default_config }
let(:padding_pattern) { /(\r\n)+\r\n\r\n\r\n$/ }
let(:header_delta) { 0 }
let(:body_delta) { 0 }
it_should_behave_like "apply padding"
end
describe "for EventSource mode" do
let(:config) { default_config.merge(:subscriber_mode => "eventsource") }
let(:padding_pattern) { /(:::)+\n$/ }
let(:header_delta) { 3 }
let(:body_delta) { 8 }
it_should_behave_like "apply padding"
end
end
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