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require "spec"
require "http/server"
describe HTTP::CompressHandler do
it "doesn't deflates if doesn't have 'deflate' in Accept-Encoding header" do
io = IO::Memory.new
request = HTTP::Request.new("GET", "/")
response = HTTP::Server::Response.new(io)
context = HTTP::Server::Context.new(request, response)
handler = HTTP::CompressHandler.new
handler.next = HTTP::Handler::HandlerProc.new do |ctx|
ctx.response.print "Hello"
end
handler.call(context)
response.close
io.rewind
io.to_s.should eq("HTTP/1.1 200 OK\r\nContent-Length: 5\r\n\r\nHello")
end
it "deflates if has deflate in 'deflate' Accept-Encoding header" do
io = IO::Memory.new
request = HTTP::Request.new("GET", "/")
request.headers["Accept-Encoding"] = "foo, deflate, other"
response = HTTP::Server::Response.new(io)
context = HTTP::Server::Context.new(request, response)
handler = HTTP::CompressHandler.new
handler.next = HTTP::Handler::HandlerProc.new do |ctx|
ctx.response.print "Hello"
end
handler.call(context)
response.close
io.rewind
response2 = HTTP::Client::Response.from_io(io, decompress: false)
body = response2.body
io2 = IO::Memory.new(body)
flate = Compress::Deflate::Reader.new(io2)
flate.gets_to_end.should eq("Hello")
end
it "deflates gzip if has deflate in 'deflate' Accept-Encoding header" do
io = IO::Memory.new
request = HTTP::Request.new("GET", "/")
request.headers["Accept-Encoding"] = "foo, gzip, other"
response = HTTP::Server::Response.new(io)
context = HTTP::Server::Context.new(request, response)
handler = HTTP::CompressHandler.new
handler.next = HTTP::Handler::HandlerProc.new do |ctx|
ctx.response.print "Hello"
end
handler.call(context)
response.close
io.rewind
response2 = HTTP::Client::Response.from_io(io, decompress: false)
body = response2.body
io2 = IO::Memory.new(body)
gzip = Compress::Gzip::Reader.new(io2)
gzip.gets_to_end.should eq("Hello")
end
it "doesn't compress twice" do
io = IO::Memory.new
request = HTTP::Request.new("GET", "/")
request.headers["Accept-Encoding"] = "gzip"
response = HTTP::Server::Response.new(io)
context = HTTP::Server::Context.new(request, response)
handler1 = HTTP::CompressHandler.new
handler2 = HTTP::CompressHandler.new
handler1.next = handler2
handler2.next = HTTP::Handler::HandlerProc.new do |ctx|
ctx.response.print "Hello"
end
handler1.call(context)
response.close
io.rewind
response2 = HTTP::Client::Response.from_io(io)
response2.body.should eq("Hello")
end
it "fix content-length header" do
io = IO::Memory.new
request = HTTP::Request.new("GET", "/")
request.headers["Accept-Encoding"] = "gzip"
response = HTTP::Server::Response.new(io)
context = HTTP::Server::Context.new(request, response)
handler = HTTP::CompressHandler.new
handler.next = HTTP::Handler::HandlerProc.new do |ctx|
ctx.response.content_length = 5
ctx.response.print "Hello"
ctx.response.flush
end
handler.call(context)
response.close
io.rewind
response = HTTP::Client::Response.from_io(io)
response.body.should eq("Hello")
end
it "don't try to compress for empty body responses" do
io = IO::Memory.new
request = HTTP::Request.new("GET", "/")
request.headers["Accept-Encoding"] = "gzip"
response = HTTP::Server::Response.new(io)
context = HTTP::Server::Context.new(request, response)
handler = HTTP::CompressHandler.new
handler.next = HTTP::Handler::HandlerProc.new do |ctx|
context.response.status = :not_modified
end
handler.call(context)
response.close
io.rewind
io.to_s.should eq("HTTP/1.1 304 Not Modified\r\n\r\n")
end
it "don't try to compress upgraded response" do
io = IO::Memory.new
request = HTTP::Request.new("GET", "/")
request.headers["Accept-Encoding"] = "gzip"
response = HTTP::Server::Response.new(io)
context = HTTP::Server::Context.new(request, response)
handler = HTTP::CompressHandler.new
handler.next = HTTP::Handler::HandlerProc.new do |ctx|
response.status = :switching_protocols
response.upgrade do |io|
end
end
handler.call(context)
response.close
io.rewind
io.to_s.should eq("HTTP/1.1 101 Switching Protocols\r\n\r\n")
end
end
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