Introduce Kemal::InitHandler to initialize HTTP::Server::Context with defaults

This commit is contained in:
Sdogruyol 2016-07-17 18:11:26 +03:00
parent 725e051723
commit 09d9e708f1
10 changed files with 48 additions and 40 deletions

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@ -26,7 +26,7 @@ describe "Config" do
it "adds a custom handler" do
config = Kemal.config
config.add_handler CustomTestHandler.new
config.handlers.size.should eq(5)
config.handlers.size.should eq(6)
end
it "adds custom options" do

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@ -1,15 +1,6 @@
require "./spec_helper"
describe "Context" do
it "has a default content type" do
get "/" do |env|
"Hello"
end
request = HTTP::Request.new("GET", "/")
client_response = call_request_on_app(request)
client_response.headers["Content-Type"].should eq("text/html")
end
it "sets content type" do
get "/" do |env|
env.response.content_type = "application/json"

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@ -4,7 +4,7 @@ describe "Macros" do
describe "#basic_auth" do
it "adds HTTPBasicAuthHandler" do
basic_auth "serdar", "123"
Kemal.config.handlers.size.should eq 5
Kemal.config.handlers.size.should eq 6
end
end
@ -18,7 +18,7 @@ describe "Macros" do
describe "#add_handler" do
it "adds a custom handler" do
add_handler CustomTestHandler.new
Kemal.config.handlers.size.should eq 5
Kemal.config.handlers.size.should eq 6
end
end

21
spec/init_handler_spec.cr Normal file
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@ -0,0 +1,21 @@
require "./spec_helper"
describe "Kemal::InitHandler" do
it "initializes context with Content-Type: text/html" do
request = HTTP::Request.new("GET", "/")
io = MemoryIO.new
response = HTTP::Server::Response.new(io)
context = HTTP::Server::Context.new(request, response)
Kemal::InitHandler::INSTANCE.call(context)
context.response.headers["Content-Type"].should eq "text/html"
end
it "initializes context with X-Powered-By: Kemal" do
request = HTTP::Request.new("GET", "/")
io = MemoryIO.new
response = HTTP::Server::Response.new(io)
context = HTTP::Server::Context.new(request, response)
Kemal::InitHandler::INSTANCE.call(context)
context.response.headers["X-Powered-By"].should eq "Kemal"
end
end

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@ -155,20 +155,4 @@ describe "Kemal::RouteHandler" do
client_response.status_code.should eq(302)
client_response.headers.has_key?("Location").should eq(true)
end
it "sets default Content-Type to context html" do
get "/" do |env|
"Hello World from GET"
end
request = HTTP::Request.new("GET", "/")
client_response = call_request_on_app(request)
client_response.content_type.should eq("text/html")
end
it "sets X-Powered-By to Kemal" do
get "/" { }
request = HTTP::Request.new("GET", "/")
client_response = call_request_on_app(request)
client_response.headers["X-Powered-By"].should eq("Kemal")
end
end

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@ -7,12 +7,10 @@ module Kemal
begin
call_next(context)
rescue Kemal::Exceptions::RouteNotFound
context.response.content_type = "text/html"
call_exception_with_status_code(context, 404)
rescue Kemal::Exceptions::CustomException
call_exception_with_status_code(context, context.response.status_code)
rescue ex : Exception
context.response.content_type = "text/html"
Kemal.config.logger.write("Exception: #{ex.inspect_with_backtrace}\n")
return call_exception_with_status_code(context, 500) if Kemal.config.error_handlers.has_key?(500)
verbosity = Kemal.config.env == "production" ? false : true

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@ -58,33 +58,38 @@ module Kemal
ERROR_HANDLERS[status_code] = ->(context : HTTP::Server::Context) { handler.call(context).to_s }
end
def extra_options(&@extra_options : OptionParser ->)
end
def setup
setup_init_handler
setup_log_handler
setup_error_handler
setup_static_file_handler
end
def setup_log_handler
private def setup_init_handler
HANDLERS.insert(0, Kemal::InitHandler::INSTANCE)
end
private def setup_log_handler
@logger ||= if @logging
Kemal::CommonLogHandler.new
else
Kemal::NullLogHandler.new
end
HANDLERS.insert(0, @logger.not_nil!)
end
def extra_options(&@extra_options : OptionParser ->)
HANDLERS.insert(1, @logger.not_nil!)
end
private def setup_error_handler
if @always_rescue
@error_handler ||= Kemal::CommonExceptionHandler.new
HANDLERS.insert(1, @error_handler.not_nil!)
HANDLERS.insert(2, @error_handler.not_nil!)
end
end
private def setup_static_file_handler
HANDLERS.insert(2, Kemal::StaticFileHandler.new(@public_folder)) if @serve_static
HANDLERS.insert(3, Kemal::StaticFileHandler.new(@public_folder)) if @serve_static
end
end

12
src/kemal/init_handler.cr Normal file
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@ -0,0 +1,12 @@
module Kemal
# Kemal::InitHandler is the first handler thus initializes the context with default values such as
# Content-Type, X-Powered-By.
class InitHandler < HTTP::Handler
INSTANCE = new
def call(context)
context.response.content_type = "text/html"
context.response.headers.add "X-Powered-By", "Kemal"
end
end
end

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@ -13,8 +13,6 @@ module Kemal
end
def call(context)
context.response.headers.add "X-Powered-By", "Kemal"
context.response.content_type = "text/html" unless context.response.headers.has_key?("Content-Type")
process_request(context)
end

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@ -48,7 +48,6 @@ def render_500(context, backtrace, verbosity)
</body>
</html>
HTML
context.response.content_type = "text/html"
context.response.status_code = 500
context.response.print template
context