mirror of git://gcc.gnu.org/git/gcc.git
462 lines
10 KiB
Go
462 lines
10 KiB
Go
// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package http
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import (
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"bufio"
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"bytes"
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"compress/gzip"
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"crypto/rand"
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"fmt"
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"io"
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"io/ioutil"
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"net/url"
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"reflect"
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"strings"
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"testing"
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)
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type respTest struct {
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Raw string
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Resp Response
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Body string
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}
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func dummyReq(method string) *Request {
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return &Request{Method: method}
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}
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var respTests = []respTest{
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// Unchunked response without Content-Length.
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{
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"HTTP/1.0 200 OK\r\n" +
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"Connection: close\r\n" +
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"\r\n" +
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"Body here\n",
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Response{
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Status: "200 OK",
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StatusCode: 200,
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Proto: "HTTP/1.0",
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ProtoMajor: 1,
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ProtoMinor: 0,
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Request: dummyReq("GET"),
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Header: Header{
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"Connection": {"close"}, // TODO(rsc): Delete?
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},
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Close: true,
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ContentLength: -1,
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},
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"Body here\n",
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},
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// Unchunked HTTP/1.1 response without Content-Length or
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// Connection headers.
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{
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"HTTP/1.1 200 OK\r\n" +
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"\r\n" +
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"Body here\n",
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Response{
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Status: "200 OK",
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StatusCode: 200,
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Proto: "HTTP/1.1",
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ProtoMajor: 1,
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ProtoMinor: 1,
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Header: Header{},
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Request: dummyReq("GET"),
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Close: true,
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ContentLength: -1,
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},
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"Body here\n",
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},
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// Unchunked HTTP/1.1 204 response without Content-Length.
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{
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"HTTP/1.1 204 No Content\r\n" +
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"\r\n" +
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"Body should not be read!\n",
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Response{
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Status: "204 No Content",
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StatusCode: 204,
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Proto: "HTTP/1.1",
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ProtoMajor: 1,
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ProtoMinor: 1,
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Header: Header{},
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Request: dummyReq("GET"),
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Close: false,
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ContentLength: 0,
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},
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"",
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},
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// Unchunked response with Content-Length.
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{
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"HTTP/1.0 200 OK\r\n" +
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"Content-Length: 10\r\n" +
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"Connection: close\r\n" +
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"\r\n" +
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"Body here\n",
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Response{
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Status: "200 OK",
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StatusCode: 200,
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Proto: "HTTP/1.0",
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ProtoMajor: 1,
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ProtoMinor: 0,
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Request: dummyReq("GET"),
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Header: Header{
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"Connection": {"close"}, // TODO(rsc): Delete?
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"Content-Length": {"10"}, // TODO(rsc): Delete?
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},
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Close: true,
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ContentLength: 10,
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},
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"Body here\n",
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},
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// Chunked response without Content-Length.
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{
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"HTTP/1.0 200 OK\r\n" +
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"Transfer-Encoding: chunked\r\n" +
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"\r\n" +
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"0a\r\n" +
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"Body here\n\r\n" +
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"09\r\n" +
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"continued\r\n" +
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"0\r\n" +
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"\r\n",
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Response{
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Status: "200 OK",
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StatusCode: 200,
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Proto: "HTTP/1.0",
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ProtoMajor: 1,
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ProtoMinor: 0,
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Request: dummyReq("GET"),
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Header: Header{},
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Close: true,
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ContentLength: -1,
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TransferEncoding: []string{"chunked"},
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},
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"Body here\ncontinued",
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},
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// Chunked response with Content-Length.
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{
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"HTTP/1.0 200 OK\r\n" +
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"Transfer-Encoding: chunked\r\n" +
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"Content-Length: 10\r\n" +
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"\r\n" +
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"0a\r\n" +
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"Body here\n" +
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"0\r\n" +
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"\r\n",
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Response{
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Status: "200 OK",
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StatusCode: 200,
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Proto: "HTTP/1.0",
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ProtoMajor: 1,
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ProtoMinor: 0,
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Request: dummyReq("GET"),
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Header: Header{},
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Close: true,
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ContentLength: -1, // TODO(rsc): Fix?
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TransferEncoding: []string{"chunked"},
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},
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"Body here\n",
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},
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// Chunked response in response to a HEAD request (the "chunked" should
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// be ignored, as HEAD responses never have bodies)
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{
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"HTTP/1.0 200 OK\r\n" +
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"Transfer-Encoding: chunked\r\n" +
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"\r\n",
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Response{
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Status: "200 OK",
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StatusCode: 200,
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Proto: "HTTP/1.0",
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ProtoMajor: 1,
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ProtoMinor: 0,
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Request: dummyReq("HEAD"),
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Header: Header{},
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Close: true,
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ContentLength: 0,
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},
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"",
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},
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// explicit Content-Length of 0.
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{
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"HTTP/1.1 200 OK\r\n" +
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"Content-Length: 0\r\n" +
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"\r\n",
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Response{
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Status: "200 OK",
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StatusCode: 200,
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Proto: "HTTP/1.1",
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ProtoMajor: 1,
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ProtoMinor: 1,
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Request: dummyReq("GET"),
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Header: Header{
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"Content-Length": {"0"},
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},
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Close: false,
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ContentLength: 0,
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},
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"",
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},
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// Status line without a Reason-Phrase, but trailing space.
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// (permitted by RFC 2616)
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{
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"HTTP/1.0 303 \r\n\r\n",
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Response{
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Status: "303 ",
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StatusCode: 303,
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Proto: "HTTP/1.0",
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ProtoMajor: 1,
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ProtoMinor: 0,
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Request: dummyReq("GET"),
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Header: Header{},
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Close: true,
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ContentLength: -1,
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},
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"",
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},
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// Status line without a Reason-Phrase, and no trailing space.
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// (not permitted by RFC 2616, but we'll accept it anyway)
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{
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"HTTP/1.0 303\r\n\r\n",
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Response{
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Status: "303 ",
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StatusCode: 303,
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Proto: "HTTP/1.0",
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ProtoMajor: 1,
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ProtoMinor: 0,
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Request: dummyReq("GET"),
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Header: Header{},
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Close: true,
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ContentLength: -1,
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},
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"",
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},
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}
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func TestReadResponse(t *testing.T) {
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for i := range respTests {
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tt := &respTests[i]
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var braw bytes.Buffer
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braw.WriteString(tt.Raw)
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resp, err := ReadResponse(bufio.NewReader(&braw), tt.Resp.Request)
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if err != nil {
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t.Errorf("#%d: %s", i, err)
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continue
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}
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rbody := resp.Body
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resp.Body = nil
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diff(t, fmt.Sprintf("#%d Response", i), resp, &tt.Resp)
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var bout bytes.Buffer
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if rbody != nil {
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io.Copy(&bout, rbody)
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rbody.Close()
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}
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body := bout.String()
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if body != tt.Body {
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t.Errorf("#%d: Body = %q want %q", i, body, tt.Body)
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}
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}
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}
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var readResponseCloseInMiddleTests = []struct {
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chunked, compressed bool
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}{
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{false, false},
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{true, false},
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{true, true},
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}
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// TestReadResponseCloseInMiddle tests that closing a body after
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// reading only part of its contents advances the read to the end of
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// the request, right up until the next request.
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func TestReadResponseCloseInMiddle(t *testing.T) {
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for _, test := range readResponseCloseInMiddleTests {
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fatalf := func(format string, args ...interface{}) {
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args = append([]interface{}{test.chunked, test.compressed}, args...)
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t.Fatalf("on test chunked=%v, compressed=%v: "+format, args...)
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}
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checkErr := func(err error, msg string) {
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if err == nil {
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return
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}
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fatalf(msg+": %v", err)
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}
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var buf bytes.Buffer
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buf.WriteString("HTTP/1.1 200 OK\r\n")
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if test.chunked {
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buf.WriteString("Transfer-Encoding: chunked\r\n")
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} else {
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buf.WriteString("Content-Length: 1000000\r\n")
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}
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var wr io.Writer = &buf
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if test.chunked {
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wr = newChunkedWriter(wr)
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}
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if test.compressed {
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buf.WriteString("Content-Encoding: gzip\r\n")
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wr = gzip.NewWriter(wr)
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}
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buf.WriteString("\r\n")
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chunk := bytes.Repeat([]byte{'x'}, 1000)
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for i := 0; i < 1000; i++ {
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if test.compressed {
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// Otherwise this compresses too well.
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_, err := io.ReadFull(rand.Reader, chunk)
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checkErr(err, "rand.Reader ReadFull")
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}
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wr.Write(chunk)
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}
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if test.compressed {
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err := wr.(*gzip.Writer).Close()
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checkErr(err, "compressor close")
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}
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if test.chunked {
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buf.WriteString("0\r\n\r\n")
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}
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buf.WriteString("Next Request Here")
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bufr := bufio.NewReader(&buf)
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resp, err := ReadResponse(bufr, dummyReq("GET"))
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checkErr(err, "ReadResponse")
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expectedLength := int64(-1)
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if !test.chunked {
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expectedLength = 1000000
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}
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if resp.ContentLength != expectedLength {
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fatalf("expected response length %d, got %d", expectedLength, resp.ContentLength)
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}
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if resp.Body == nil {
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fatalf("nil body")
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}
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if test.compressed {
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gzReader, err := gzip.NewReader(resp.Body)
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checkErr(err, "gzip.NewReader")
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resp.Body = &readFirstCloseBoth{gzReader, resp.Body}
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}
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rbuf := make([]byte, 2500)
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n, err := io.ReadFull(resp.Body, rbuf)
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checkErr(err, "2500 byte ReadFull")
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if n != 2500 {
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fatalf("ReadFull only read %d bytes", n)
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}
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if test.compressed == false && !bytes.Equal(bytes.Repeat([]byte{'x'}, 2500), rbuf) {
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fatalf("ReadFull didn't read 2500 'x'; got %q", string(rbuf))
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}
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resp.Body.Close()
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rest, err := ioutil.ReadAll(bufr)
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checkErr(err, "ReadAll on remainder")
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if e, g := "Next Request Here", string(rest); e != g {
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fatalf("remainder = %q, expected %q", g, e)
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}
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}
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}
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func diff(t *testing.T, prefix string, have, want interface{}) {
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hv := reflect.ValueOf(have).Elem()
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wv := reflect.ValueOf(want).Elem()
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if hv.Type() != wv.Type() {
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t.Errorf("%s: type mismatch %v want %v", prefix, hv.Type(), wv.Type())
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}
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for i := 0; i < hv.NumField(); i++ {
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hf := hv.Field(i).Interface()
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wf := wv.Field(i).Interface()
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if !reflect.DeepEqual(hf, wf) {
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t.Errorf("%s: %s = %v want %v", prefix, hv.Type().Field(i).Name, hf, wf)
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}
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}
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}
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type responseLocationTest struct {
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location string // Response's Location header or ""
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requrl string // Response.Request.URL or ""
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want string
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wantErr error
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}
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var responseLocationTests = []responseLocationTest{
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{"/foo", "http://bar.com/baz", "http://bar.com/foo", nil},
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{"http://foo.com/", "http://bar.com/baz", "http://foo.com/", nil},
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{"", "http://bar.com/baz", "", ErrNoLocation},
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}
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func TestLocationResponse(t *testing.T) {
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for i, tt := range responseLocationTests {
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res := new(Response)
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res.Header = make(Header)
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res.Header.Set("Location", tt.location)
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if tt.requrl != "" {
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res.Request = &Request{}
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var err error
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res.Request.URL, err = url.Parse(tt.requrl)
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if err != nil {
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t.Fatalf("bad test URL %q: %v", tt.requrl, err)
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}
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}
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got, err := res.Location()
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if tt.wantErr != nil {
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if err == nil {
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t.Errorf("%d. err=nil; want %q", i, tt.wantErr)
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continue
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}
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if g, e := err.Error(), tt.wantErr.Error(); g != e {
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t.Errorf("%d. err=%q; want %q", i, g, e)
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continue
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}
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continue
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}
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if err != nil {
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t.Errorf("%d. err=%q", i, err)
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continue
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}
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if g, e := got.String(), tt.want; g != e {
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t.Errorf("%d. Location=%q; want %q", i, g, e)
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}
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}
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}
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func TestResponseStatusStutter(t *testing.T) {
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r := &Response{
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Status: "123 some status",
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StatusCode: 123,
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ProtoMajor: 1,
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ProtoMinor: 3,
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}
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var buf bytes.Buffer
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r.Write(&buf)
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if strings.Contains(buf.String(), "123 123") {
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t.Errorf("stutter in status: %s", buf.String())
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}
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}
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