package cgi

import (
	"bufio"
	"bytes"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
)

func TestRequest(t *testing.T) {
	env := map[string]string{
		"SERVER_PROTOCOL": "HTTP/1.1",
		"REQUEST_METHOD":  "GET",
		"HTTP_HOST":       "example.com",
		"HTTP_REFERER":    "elsewhere",
		"HTTP_USER_AGENT": "goclient",
		"HTTP_FOO_BAR":    "baz",
		"REQUEST_URI":     "/path?a=b",
		"CONTENT_LENGTH":  "123",

			t.Fatalf("{%q, %q, %q} cache key = %q; want %q", tt.proxy, tt.scheme, tt.addr, got, tt.key)
		}
	}
}

func ResetProxyEnv() {
	for _, v := range []string{"HTTP_PROXY", "http_proxy", "NO_PROXY", "no_proxy", "REQUEST_METHOD"} {
		os.Unsetenv(v)
	}
	ResetCachedEnvironment()

// The returned Request's Body field is not populated.
func RequestFromMap(params map[string]string) (*http.Request, error) {
	r := new(http.Request)
	r.Method = params["REQUEST_METHOD"]
	if r.Method == "" {
		return nil, errors.New("cgi: no REQUEST_METHOD in environment")
	}

	r.Proto = params["SERVER_PROTOCOL"]
	var ok bool
	r.ProtoMajor, r.ProtoMinor, ok = http.ParseHTTPVersion(r.Proto)
	if !ok {

		"env-PATH_INFO":         "",
		"env-QUERY_STRING":      "foo=bar&a=b",
		"env-REMOTE_ADDR":       "1.2.3.4",
		"env-REMOTE_HOST":       "1.2.3.4",
		"env-REMOTE_PORT":       "1234",
		"env-REQUEST_METHOD":    "GET",
		"env-REQUEST_URI":       "/test.cgi?foo=bar&a=b",
		"env-SCRIPT_FILENAME":   os.Args[0],
		"env-SCRIPT_NAME":       "/test.cgi",
		"env-SERVER_NAME":       "example.com",

	for i := range p {
		p[i] = byte(b)
	}
	return len(p), nil
}

// childCGIProcess is used by integration_test to complete unit tests.
func childCGIProcess() {
	if os.Getenv("REQUEST_METHOD") == "" {
		// Not in a CGI environment; skipping test.
		return
	}
	switch os.Getenv("REQUEST_URI") {
	case "/immediate-disconnect":
		os.Exit(0)
	case "/no-content-type":

	// set up request 1
	makeRecord(typeBeginRequest, 1,
		[]byte{0, byte(roleResponder), 0, 0, 0, 0, 0, 0}),
	// add required parameters to request 1
	makeRecord(typeParams, 1, nameValuePair11("REQUEST_METHOD", "GET")),
	makeRecord(typeParams, 1, nameValuePair11("SERVER_PROTOCOL", "HTTP/1.1")),
	makeRecord(typeParams, 1, nil),
	// begin sending body of request 1
	makeRecord(typeStdin, 1, []byte("0123456789abcdef")),
},

	// ignored.
	NoProxy string

	// CGI holds whether the current process is running
	// as a CGI handler (FromEnvironment infers this from the
	// presence of a REQUEST_METHOD environment variable).
	// When this is set, ProxyForURL will return an error
	// when HTTPProxy applies, because a client could be
	// setting HTTP_PROXY maliciously. See https://golang.org/s/cgihttpproxy.
	CGI bool
}

		"env-PATH_INFO":         "",
		"env-QUERY_STRING":      "foo=bar&a=b",
		"env-REMOTE_ADDR":       "1.2.3.4",
		"env-REMOTE_HOST":       "1.2.3.4",
		"env-REMOTE_PORT":       "1234",
		"env-REQUEST_METHOD":    "GET",
		"env-REQUEST_URI":       "/test.go?foo=bar&a=b",
		"env-SCRIPT_FILENAME":   os.Args[0],
		"env-SCRIPT_NAME":       "/test.go",
		"env-SERVER_NAME":       "example.com",
		"env-SERVER_PORT":       "80",

	// Exclude things supported by net/http natively:
	switch s {
	case "CONTENT_LENGTH", "CONTENT_TYPE", "HTTPS",
		"PATH_INFO", "QUERY_STRING", "REMOTE_ADDR",
		"REMOTE_HOST", "REMOTE_PORT", "REQUEST_METHOD",
		"REQUEST_URI", "SCRIPT_NAME", "SERVER_PROTOCOL":
		return false
	}
	if strings.HasPrefix(s, "HTTP_") {
		return false
	}
	// Explicitly include FastCGI-specific things.

		port = matches[1]
	}

	env := []string{
		"SERVER_SOFTWARE=go",
		"SERVER_PROTOCOL=HTTP/1.1",
		"HTTP_HOST=" + req.Host,
		"GATEWAY_INTERFACE=CGI/1.1",
		"REQUEST_METHOD=" + req.Method,
		"QUERY_STRING=" + req.URL.RawQuery,
		"REQUEST_URI=" + req.URL.RequestURI(),
		"PATH_INFO=" + pathInfo,
		"SCRIPT_NAME=" + root,
		"SCRIPT_FILENAME=" + h.Path,
		"SERVER_PORT=" + port,
	}