require "webrick"
require "stringio"
require "test/unit"

class TestWEBrickHTTPRequest < Test::Unit::TestCase
  def test_parse_09
    msg = <<-_end_of_message_
      GET /
      foobar    # HTTP/0.9 request don't have header nor entity body.
    _end_of_message_
    req = WEBrick::HTTPRequest.new(WEBrick::Config::HTTP)
    req.parse(StringIO.new(msg.gsub(/^ {6}/, "")))
    assert_equal("GET", req.request_method)
    assert_equal("/", req.unparsed_uri)
    assert_equal(WEBrick::HTTPVersion.new("0.9"), req.http_version)
    assert_equal(WEBrick::Config::HTTP[:ServerName], req.host)
    assert_equal(80, req.port)
    assert_equal(false, req.keep_alive?)
    assert_equal(nil, req.body)
    assert(req.query.empty?)
  end

  def test_parse_10
    msg = <<-_end_of_message_
      GET / HTTP/1.0

    _end_of_message_
    req = WEBrick::HTTPRequest.new(WEBrick::Config::HTTP)
    req.parse(StringIO.new(msg.gsub(/^ {6}/, "")))
    assert_equal("GET", req.request_method)
    assert_equal("/", req.unparsed_uri)
    assert_equal(WEBrick::HTTPVersion.new("1.0"), req.http_version)
    assert_equal(WEBrick::Config::HTTP[:ServerName], req.host)
    assert_equal(80, req.port)
    assert_equal(false, req.keep_alive?)
    assert_equal(nil, req.body)
    assert(req.query.empty?)
  end

  def test_parse_11
    msg = <<-_end_of_message_
      GET /path HTTP/1.1

    _end_of_message_
    req = WEBrick::HTTPRequest.new(WEBrick::Config::HTTP)
    req.parse(StringIO.new(msg.gsub(/^ {6}/, "")))
    assert_equal("GET", req.request_method)
    assert_equal("/path", req.unparsed_uri)
    assert_equal("", req.script_name)
    assert_equal("/path", req.path_info)
    assert_equal(WEBrick::HTTPVersion.new("1.1"), req.http_version)
    assert_equal(WEBrick::Config::HTTP[:ServerName], req.host)
    assert_equal(80, req.port)
    assert_equal(true, req.keep_alive?)
    assert_equal(nil, req.body)
    assert(req.query.empty?)
  end

  def test_parse_headers
    msg = <<-_end_of_message_
      GET /path HTTP/1.1
      Host: test.ruby-lang.org:8080
      Connection: close
      Accept: text/*;q=0.3, text/html;q=0.7, text/html;level=1,
              text/html;level=2;q=0.4, */*;q=0.5
      Accept-Encoding: compress;q=0.5
      Accept-Encoding: gzip;q=1.0, identity; q=0.4, *;q=0
      Accept-Language: en;q=0.5, *; q=0
      Accept-Language: ja
      Content-Type: text/plain
      Content-Length: 7

      foobar
    _end_of_message_
    req = WEBrick::HTTPRequest.new(WEBrick::Config::HTTP)
    req.parse(StringIO.new(msg.gsub(/^ {6}/, "")))
    assert_equal(
      URI.parse("http://test.ruby-lang.org:8080/path"), req.request_uri)
    assert_equal("test.ruby-lang.org", req.host)
    assert_equal(8080, req.port)
    assert_equal(false, req.keep_alive?)
    assert_equal(
      %w(text/html;level=1 text/html */* text/html;level=2 text/*),
      req.accept)
    assert_equal(%w(gzip compress identity *), req.accept_encoding)
    assert_equal(%w(ja en *), req.accept_language)
    assert_equal(7, req.content_length)
    assert_equal("text/plain", req.content_type)
    assert_equal("foobar\n", req.body)
    assert(req.query.empty?)
  end

  def test_parse_header2()
    msg = <<-_end_of_message_
      POST /foo/bar/../baz?q=a HTTP/1.0
      Content-Length: 9
      User-Agent:
        FOO   BAR
        BAZ

      hogehoge
    _end_of_message_
    req = WEBrick::HTTPRequest.new(WEBrick::Config::HTTP)
    req.parse(StringIO.new(msg.gsub(/^ {6}/, "")))
    assert_equal("POST", req.request_method)
    assert_equal("/foo/baz", req.path)
    assert_equal("", req.script_name)
    assert_equal("/foo/baz", req.path_info)
    assert_equal("9", req['content-length'])
    assert_equal("FOO BAR BAZ", req['user-agent'])
    assert_equal("hogehoge\n", req.body)
  end


  def test_parse_get_params
    param = "foo=1;foo=2;foo=3;bar=x"
    msg = <<-_end_of_message_
      GET /path?#{param} HTTP/1.1
      Host: test.ruby-lang.org:8080

    _end_of_message_
    req = WEBrick::HTTPRequest.new(WEBrick::Config::HTTP)
    req.parse(StringIO.new(msg.gsub(/^ {6}/, "")))
    query = req.query
    assert_equal("1", query["foo"])
    assert_equal(["1", "2", "3"], query["foo"].to_ary)
    assert_equal(["1", "2", "3"], query["foo"].list)
    assert_equal("x", query["bar"])
    assert_equal(["x"], query["bar"].list)
  end

  def test_parse_post_params
    param = "foo=1;foo=2;foo=3;bar=x"
    msg = <<-_end_of_message_
      POST /path?foo=x;foo=y;foo=z;bar=1 HTTP/1.1
      Host: test.ruby-lang.org:8080
      Content-Length: #{param.size}
      Content-Type: application/x-www-form-urlencoded

      #{param}
    _end_of_message_
    req = WEBrick::HTTPRequest.new(WEBrick::Config::HTTP)
    req.parse(StringIO.new(msg.gsub(/^ {6}/, "")))
    query = req.query
    assert_equal("1", query["foo"])
    assert_equal(["1", "2", "3"], query["foo"].to_ary)
    assert_equal(["1", "2", "3"], query["foo"].list)
    assert_equal("x", query["bar"])
    assert_equal(["x"], query["bar"].list)
  end

  def test_chunked
    crlf = "\x0d\x0a"
    msg = <<-_end_of_message_
      POST /path HTTP/1.1
      Host: test.ruby-lang.org:8080
      Transfer-Encoding: chunked

    _end_of_message_
    msg.gsub!(/^ {6}/, "")
    open(__FILE__){|io|
      while chunk = io.read(100)
        msg << chunk.size.to_s(16) << crlf
        msg << chunk << crlf
      end
    }
    msg << "0" << crlf
    req = WEBrick::HTTPRequest.new(WEBrick::Config::HTTP)
    req.parse(StringIO.new(msg))
    assert_equal(File.read(__FILE__), req.body)
  end

  def test_bad_messages
    param = "foo=1;foo=2;foo=3;bar=x"
    msg = <<-_end_of_message_
      POST /path?foo=x;foo=y;foo=z;bar=1 HTTP/1.1
      Host: test.ruby-lang.org:8080
      Content-Type: application/x-www-form-urlencoded

      #{param}
    _end_of_message_
    assert_raises(WEBrick::HTTPStatus::LengthRequired){
      req = WEBrick::HTTPRequest.new(WEBrick::Config::HTTP)
      req.parse(StringIO.new(msg.gsub(/^ {6}/, "")))
      req.body
    }

    msg = <<-_end_of_message_
      POST /path?foo=x;foo=y;foo=z;bar=1 HTTP/1.1
      Host: test.ruby-lang.org:8080
      Content-Length: 100000

      body is too short.
    _end_of_message_
    assert_raises(WEBrick::HTTPStatus::BadRequest){
      req = WEBrick::HTTPRequest.new(WEBrick::Config::HTTP)
      req.parse(StringIO.new(msg.gsub(/^ {6}/, "")))
      req.body
    }

    msg = <<-_end_of_message_
      POST /path?foo=x;foo=y;foo=z;bar=1 HTTP/1.1
      Host: test.ruby-lang.org:8080
      Transfer-Encoding: foobar

      body is too short.
    _end_of_message_
    assert_raises(WEBrick::HTTPStatus::NotImplemented){
      req = WEBrick::HTTPRequest.new(WEBrick::Config::HTTP)
      req.parse(StringIO.new(msg.gsub(/^ {6}/, "")))
      req.body
    }
  end
end