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# frozen_string_literal: true
# Released under the MIT License.
# Copyright, 2025, by Samuel Williams.
require "protocol/http1/connection"
require "connection_context"
describe Protocol::HTTP1::Connection do
include_context ConnectionContext
with "#write_response" do
before do
server.open!
end
def validate_headers!(expected_headers = self.headers)
server.write_empty_body
client.open!
version, status, reason, headers, body = client.read_response("GET")
expect(headers).to be == headers
end
with "a content-type header" do
let(:headers) {{"content-type" => "text/plain"}}
it "can parse the header" do
server.write_response("HTTP/1.1", 200, headers)
validate_headers!
end
end
with "an empty header" do
let(:headers) {{"nothing" => ""}}
it "can parse the header" do
server.write_response("HTTP/1.1", 200, headers)
validate_headers!
end
end
with "a header that contains tab characters" do
let(:headers) {{"user-agent" => "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4) AppleWebKit/537.36 (KHTML, like Gecko) \t\t\tChrome/55.0.2883.95 Safari/537.36"}}
it "can parse the header" do
server.write_response("HTTP/1.1", 200, headers)
validate_headers!
end
end
with "a header that contains obsolete folding whitespace" do
let(:headers) {{"user-agent" => "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4) AppleWebKit/537.36 (KHTML, like Gecko)\n\tChrome/55.0.2883.95 Safari/537.36"}}
it "rejects the response" do
expect do
server.write_response("HTTP/1.1", 200, headers)
end.to raise_exception(Protocol::HTTP1::BadHeader)
end
end
with "a header that contains invalid characters" do
let(:headers) {{"user-agent" => "Mozilla\x00Hacker Browser"}}
it "rejects the response" do
expect do
server.write_response("HTTP/1.1", 200, headers)
end.to raise_exception(Protocol::HTTP1::BadHeader)
end
end
with "a header that contains invalid high characters" do
let(:headers) {{"user-agent" => "Mozilla\x7FHacker Browser"}}
it "allows the response" do
server.write_response("HTTP/1.1", 200, headers)
validate_headers!
end
end
end
with "#read_request" do
let(:headers) {Array.new}
before do
client.stream.write "GET / HTTP/1.1\r\nHost: localhost\r\n#{headers.join("\r\n")}\r\n\r\n"
client.stream.close
end
with "a header that contains tab characters" do
let(:headers) {[
"user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4) AppleWebKit/537.36 (KHTML, like Gecko) \t\t\tChrome/55.0.2883.95 Safari/537.36"
]}
it "can parse the header" do
authority, method, target, version, headers, body = server.read_request
expect(headers).to have_keys(
"user-agent" => be == "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4) AppleWebKit/537.36 (KHTML, like Gecko) \t\t\tChrome/55.0.2883.95 Safari/537.36"
)
end
end
with "a header that contains obsolete folding whitespace" do
let(:headers) {[
"user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4) AppleWebKit/537.36 (KHTML, like Gecko)\n\tChrome/55.0.2883.95 Safari/537.36"
]}
it "rejects the request" do
expect do
server.read_request
end.to raise_exception(Protocol::HTTP1::BadHeader)
end
end
with "a header that contains invalid characters" do
let(:headers) {[
"user-agent: Mozilla\x00Hacker Browser"
]}
it "rejects the request" do
expect do
server.read_request
end.to raise_exception(Protocol::HTTP1::BadHeader)
end
end
with "a header that contains invalid high characters" do
let(:headers) {[
"user-agent: Mozilla\x7FHacker Browser"
]}
it "allows the request" do
authority, method, target, version, headers, body = server.read_request
expect(headers).to have_keys(
"user-agent" => be == "Mozilla\x7FHacker Browser"
)
end
end
with "a header that contains null character" do
let(:headers) {[
"user-agent: Mozilla\x00Hacker Browser"
]}
it "rejects the request" do
expect do
server.read_request
end.to raise_exception(Protocol::HTTP1::BadHeader)
end
end
with "a header that has empty value but includes optional whitespace" do
let(:headers) {[
"user-agent: "
]}
it "can parse the header" do
authority, method, target, version, headers, body = server.read_request
expect(headers).to have_keys(
"user-agent" => be == ""
)
end
end
with "a header that has empty value" do
let(:headers) {[
"user-agent:"
]}
it "can parse the header" do
authority, method, target, version, headers, body = server.read_request
expect(headers).to have_keys(
"user-agent" => be == ""
)
end
end
with "a header that has invalid name" do
let(:headers) {[
"invalid name: value"
]}
it "rejects the request" do
expect do
server.read_request
end.to raise_exception(Protocol::HTTP1::BadHeader)
end
end
with "a header that has empty name" do
let(:headers) {[
": value"
]}
it "rejects the request" do
expect do
server.read_request
end.to raise_exception(Protocol::HTTP1::BadHeader)
end
end
end
end
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