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describe("http.h2_stream", function()
local h2_connection = require "http.h2_connection"
local h2_error = require "http.h2_error"
local new_headers = require "http.headers".new
local cqueues = require "cqueues"
local ca = require "cqueues.auxlib"
local cs = require "cqueues.socket"
local function new_pair()
local s, c = ca.assert(cs.pair())
s = assert(h2_connection.new(s, "server"))
c = assert(h2_connection.new(c, "client"))
return s, c
end
it("rejects header fields with uppercase characters", function()
local s, c = new_pair()
local client_stream = c:new_stream()
local req_headers = new_headers()
req_headers:append(":method", "GET")
req_headers:append(":scheme", "http")
req_headers:append(":path", "/")
req_headers:append("Foo", "bar")
assert.has.errors(function()
client_stream:write_headers(req_headers, false, 0)
end)
c:close()
s:close()
end)
it("breaks up a large header block into continuation frames", function()
local s, c = new_pair()
local cq = cqueues.new()
local req_headers = new_headers()
req_headers:append(":method", "GET")
req_headers:append(":scheme", "http")
req_headers:append(":path", "/")
req_headers:append("unknown", ("a"):rep(16384*3)) -- at least 3 frames worth
cq:wrap(function()
local client_stream = c:new_stream()
assert(client_stream:write_headers(req_headers, true))
assert(c:close())
end)
cq:wrap(function()
local stream = assert(s:get_next_incoming_stream())
local response_headers = assert(stream:get_headers())
assert.same(req_headers, response_headers)
assert(s:close())
end)
assert_loop(cq, TEST_TIMEOUT)
assert.truthy(cq:empty())
end)
it("can send a body", function()
local s, c = new_pair()
local cq = cqueues.new()
cq:wrap(function()
local client_stream = c:new_stream()
local req_headers = new_headers()
req_headers:append(":method", "GET")
req_headers:append(":scheme", "http")
req_headers:append(":path", "/")
-- use non-integer timeouts to catch errors with integer vs number
assert(client_stream:write_headers(req_headers, false, 1.1))
assert(client_stream:write_chunk("some body", false, 1.1))
assert(client_stream:write_chunk("more body", true, 1.1))
assert(c:close())
end)
cq:wrap(function()
local stream = assert(s:get_next_incoming_stream())
local body = assert(stream:get_body_as_string(1.1))
assert.same("some bodymore body", body)
assert(s:close())
end)
assert_loop(cq, TEST_TIMEOUT)
assert.truthy(cq:empty())
end)
it("errors if content-length is exceeded", function()
local s, c = new_pair()
local cq = cqueues.new()
cq:wrap(function()
local client_stream = c:new_stream()
local req_headers = new_headers()
req_headers:append(":method", "GET")
req_headers:append(":scheme", "http")
req_headers:append(":path", "/")
req_headers:append("content-length", "2")
assert(client_stream:write_headers(req_headers, false))
assert(client_stream:write_chunk("body longer than 2 bytes", true))
end)
cq:wrap(function()
local stream = assert(s:get_next_incoming_stream())
local ok, err = stream:get_body_as_string()
assert.falsy(ok)
assert.truthy(h2_error.is(err))
assert.same(h2_error.errors.PROTOCOL_ERROR.code, err.code)
assert.same("content-length exceeded", err.message)
assert(s:close())
end)
assert_loop(cq, TEST_TIMEOUT)
assert.truthy(cq:empty())
c:close()
end)
describe("correct state transitions", function()
it("closes a stream when writing headers to a half-closed stream", function()
local s, c = new_pair()
local cq = cqueues.new()
cq:wrap(function()
local client_stream = c:new_stream()
local req_headers = new_headers()
req_headers:append(":method", "GET")
req_headers:append(":scheme", "http")
req_headers:append(":path", "/")
req_headers:append(":authority", "example.com")
assert(client_stream:write_headers(req_headers, false))
assert(client_stream:get_headers())
assert(c:close())
end)
cq:wrap(function()
local stream = assert(s:get_next_incoming_stream())
assert(stream:get_headers())
local res_headers = new_headers()
res_headers:append(":status", "200")
assert(stream:write_headers(res_headers, true))
assert("closed", stream.state)
assert(s:close())
end)
assert_loop(cq, TEST_TIMEOUT)
assert.truthy(cq:empty())
end)
it("ignores delayed RST_STREAM on already closed stream", function()
local s, c = new_pair()
local cq = cqueues.new()
cq:wrap(function()
local client_stream = c:new_stream()
local req_headers = new_headers()
req_headers:append(":method", "GET")
req_headers:append(":scheme", "http")
req_headers:append(":path", "/")
req_headers:append(":authority", "example.com")
assert(client_stream:write_headers(req_headers, true))
assert(client_stream:get_headers())
assert("closed", client_stream.state)
-- both sides now have stream in closed state
-- send server a RST_STREAM: it should get ignored
assert(client_stream:rst_stream("post-closed rst_stream"))
assert(c:close())
end)
cq:wrap(function()
local stream = assert(s:get_next_incoming_stream())
assert(stream:get_headers())
local res_headers = new_headers()
res_headers:append(":status", "200")
assert(stream:write_headers(res_headers, true))
-- both sides now have stream in closed state
assert("closed", stream.state)
-- process incoming frames until EOF (i.e. drain RST_STREAM)
-- the RST_STREAM frame should be ignored.
assert(s:loop())
assert(s:close())
end)
cq:wrap(function()
assert(s:loop())
end)
assert_loop(cq, TEST_TIMEOUT)
assert.truthy(cq:empty())
end)
end)
describe("push_promise", function()
it("permits a simple push promise from server => client", function()
local s, c = new_pair()
local cq = cqueues.new()
cq:wrap(function()
local client_stream = c:new_stream()
local req_headers = new_headers()
req_headers:append(":method", "GET")
req_headers:append(":scheme", "http")
req_headers:append(":path", "/")
req_headers:append(":authority", "example.com")
assert(client_stream:write_headers(req_headers, true))
local pushed_stream = assert(c:get_next_incoming_stream())
do
local h = assert(pushed_stream:get_headers())
assert.same("GET", h:get(":method"))
assert.same("http", h:get(":scheme"))
assert.same("/foo", h:get(":path"))
assert.same(req_headers:get(":authority"), h:get(":authority"))
assert.same(nil, pushed_stream:get_next_chunk())
end
assert(c:close())
end)
cq:wrap(function()
local stream = assert(s:get_next_incoming_stream())
do
local h = assert(stream:get_headers())
assert.same("GET", h:get(":method"))
assert.same("http", h:get(":scheme"))
assert.same("/", h:get(":path"))
assert.same("example.com", h:get(":authority"))
assert.same(nil, stream:get_next_chunk())
end
local pushed_stream do
local req_headers = new_headers()
req_headers:append(":method", "GET")
req_headers:append(":scheme", "http")
req_headers:append(":path", "/foo")
req_headers:append(":authority", "example.com")
pushed_stream = assert(stream:push_promise(req_headers))
end
do
local req_headers = new_headers()
req_headers:append(":status", "200")
assert(pushed_stream:write_headers(req_headers, true))
end
assert(s:close())
end)
assert_loop(cq, TEST_TIMEOUT)
assert.truthy(cq:empty())
end)
it("handles large header blocks", function()
local s, c = new_pair()
local cq = cqueues.new()
cq:wrap(function()
local client_stream = c:new_stream()
local req_headers = new_headers()
req_headers:append(":method", "GET")
req_headers:append(":scheme", "http")
req_headers:append(":path", "/")
req_headers:append(":authority", "example.com")
assert(client_stream:write_headers(req_headers, true))
local pushed_stream = assert(c:get_next_incoming_stream())
do
local h = assert(pushed_stream:get_headers())
assert.same("GET", h:get(":method"))
assert.same("http", h:get(":scheme"))
assert.same("/foo", h:get(":path"))
assert.same(req_headers:get(":authority"), h:get(":authority"))
assert.same(nil, pushed_stream:get_next_chunk())
end
assert(c:close())
end)
cq:wrap(function()
local stream = assert(s:get_next_incoming_stream())
do
local h = assert(stream:get_headers())
assert.same("GET", h:get(":method"))
assert.same("http", h:get(":scheme"))
assert.same("/", h:get(":path"))
assert.same("example.com", h:get(":authority"))
assert.same(nil, stream:get_next_chunk())
end
local pushed_stream do
local req_headers = new_headers()
req_headers:append(":method", "GET")
req_headers:append(":scheme", "http")
req_headers:append(":path", "/foo")
req_headers:append(":authority", "example.com")
req_headers:append("unknown", ("a"):rep(16384*3)) -- at least 3 frames worth
pushed_stream = assert(stream:push_promise(req_headers))
end
do
local req_headers = new_headers()
req_headers:append(":status", "200")
assert(pushed_stream:write_headers(req_headers, true))
end
assert(s:close())
end)
assert_loop(cq, TEST_TIMEOUT)
assert.truthy(cq:empty())
end)
end)
end)
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