Add support for fcgi through unix sockets

Author: vanackere

dialer.go

@@ -14,12 +14,13 @@ type Dialer interface {
 	Dial() (net.Conn, error)
 }
 
-type TCPDialer struct {
+type NetDialer struct {
+	net  string
 	addr string
 }
 
-func (d TCPDialer) Dial() (net.Conn, error) {
-	return net.Dial("tcp", d.addr)
+func (d NetDialer) Dial() (net.Conn, error) {
+	return net.Dial(d.net, d.addr)
 }
 
 // StdinDialer managers an app as a child process, creating a socket and passing it through stdin.
@@ -40,7 +41,7 @@ func (sd *StdinDialer) Dial() (net.Conn, error) {
 }
 
 func (sd *StdinDialer) Start() error {
-	// Create a socket. 
+	// Create a socket.
 	// We'll use the high-level net API, creating a listener that does all sorts
 	// of socket stuff, getting its file, and passing that (really just for its FD)
 	// to the child process.

gofcgisrv.go

@@ -49,10 +49,11 @@ type FCGIRequester struct {
 	MaxRequests  int
 }
 
-// NewServer creates a server that will attempt to connect to the application at the given address over TCP.
-func NewFCGI(applicationAddr string) *FCGIRequester {
+// NewServer creates a server that will attempt to connect to the application at the given address
+// over the specified network (typically 'tcp' or 'unix')
+func NewFCGI(net, applicationAddr string) *FCGIRequester {
 	s := &FCGIRequester{}
-	s.dialer = TCPDialer{addr: applicationAddr}
+	s.dialer = NetDialer{net: net, addr: applicationAddr}
 	s.MaxConns = 1
 	s.MaxRequests = 1
 	s.reqCond = sync.NewCond(&s.reqLock)

py_test.go

@@ -43,7 +43,7 @@ func TestPyServer(t *testing.T) {
 	defer cmd.Process.Kill()
 
 	waitForConn("127.0.0.1:9001", time.Second)
-	s := NewFCGI("127.0.0.1:9001")
+	s := NewFCGI("tcp", "127.0.0.1:9001")
 	testRequester(t, httpTestData{
 		name:     "py fastcgi",
 		f:        s,

server_test.go

@@ -37,7 +37,7 @@ func TestFCGI(t *testing.T) {
 	defer l.Close()
 
 	// Now start an http server.
-	s := NewFCGI(addr)
+	s := NewFCGI("tcp", addr)
 	http.Handle("/", s)
 	server := httptest.NewServer(nil)
 	defer server.Close()