gistfile1.txt

package main

import (
    "fmt"
    "http"
    "regexp"
    /*"io"*/
    "log"
    "fcgi"
)

type Root struct {
    Url         string
    Root        string
}

type Site struct {
    HostRegexp  string
    FcgiNode    string
    Roots       []Root
}

type Configuration struct {
    Address     string
    Sites       []Site
}

var configuration = Configuration{
    "0.0.0.0:80",
    []Site{
        Site{
            "foo.com",
            "tcp://127.0.0.1:9000",
            []Root{
                Root{
                    "/site_media",
                    "/srv/music/site_media",
                },
            },
        },
    },
}

func (cfg *Configuration) ServeHTTP(c *http.Conn, req *http.Request) {
    for _, site := range cfg.Sites {
        match, _ := regexp.MatchString( site.HostRegexp, req.Host )
        if match {
            handler, _ := fcgi.Handler([]fcgi.Dialer{
                fcgi.NewDialer("tcp", site.FcgiNode),
            })
            fmt.Println("Serving")
            handler.ServeHTTP(c, req)
            return
        }
    }
}

func main() {
    println("serving on", configuration.Address)

    http.Handle("/", &configuration)

    err := http.ListenAndServe(configuration.Address, nil)
    if err != nil {
        log.Exit("ListenAndServe:", err)
    }


    return
}



/* Error:

panic: runtime error: invalid memory address or nil pointer dereference

panic PC=0xb76aa0d0
runtime.panic+0x97 /home/jpic/src/go/src/pkg/runtime/proc.c:1011
	runtime.panic(0x0, 0x80d1b48)
panicstring+0x5e /home/jpic/src/go/src/pkg/runtime/runtime.c:83
	panicstring(0x80d1b48, 0xb77200d8)
sigpanic+0x8f /home/jpic/src/go/src/pkg/runtime/linux/thread.c:285
	sigpanic()
main.*Configuration·ServeHTTP+0x212 /home/jpic/src/goserver/serve.go:36
	main.*Configuration·ServeHTTP(0x0, 0xb76a3780, 0xb76bb000, 0x8)
http.*ServeMux·ServeHTTP+0x207 /home/jpic/src/go/src/pkg/http/server.go:508
	http.*ServeMux·ServeHTTP(0x80e6464, 0xb76a3780, 0xb76bb000, 0x1)
http.*Conn·serve+0x73 /home/jpic/src/go/src/pkg/http/server.go:289
	http.*Conn·serve(0xb7697818, 0xb76a3780)
goexit /home/jpic/src/go/src/pkg/runtime/proc.c:145
	goexit()

goroutine 2 [3]:
runtime.entersyscall+0x5d /home/jpic/src/go/src/pkg/runtime/proc.c:562
	runtime.entersyscall()
syscall.Syscall6+0x5 /home/jpic/src/go/src/pkg/syscall/asm_linux_386.s:40
	syscall.Syscall6()
syscall.EpollWait+0x71 /home/jpic/src/go/src/pkg/syscall/zsyscall_linux_386.go:132
	syscall.EpollWait(0x100, 0x6, 0xb76ed8c0, 0x1, 0xffffffff, ...)
net.*pollster·WaitFD+0x111 /home/jpic/src/go/src/pkg/net/fd_linux.go:116
	net.*pollster·WaitFD(0x6, 0xb76ed8c0, 0x1, 0x1, 0xffffffff, ...)
net.*pollServer·Run+0xc9 /home/jpic/src/go/src/pkg/net/fd.go:232
	net.*pollServer·Run(0xb76978b8, 0x0)
goexit /home/jpic/src/go/src/pkg/runtime/proc.c:145
	goexit()

goroutine 1 [4]:
gosched+0x66 /home/jpic/src/go/src/pkg/runtime/proc.c:541
	gosched()
chanrecv+0x14b /home/jpic/src/go/src/pkg/runtime/chan.c:355
	chanrecv(0xb76a3370, 0xb76ef620, 0x1, 0x808df72)
runtime.chanrecv1+0x37 /home/jpic/src/go/src/pkg/runtime/chan.c:429
	runtime.chanrecv1(0xb76a3340, 0xb76a6db0)
net.*pollServer·WaitRead+0x4d /home/jpic/src/go/src/pkg/net/fd.go:272
	net.*pollServer·WaitRead(0xb76a3340, 0xb76a4f00, 0x0)
net.*netFD·accept+0x2c2 /home/jpic/src/go/src/pkg/net/fd.go:508
	net.*netFD·accept(0xb76ef740, 0xb76a4f00, 0x0, 0x0, 0xb, ...)
net.*TCPListener·AcceptTCP+0x53 /home/jpic/src/go/src/pkg/net/tcpsock.go:253
	net.*TCPListener·AcceptTCP(0xb76a4f00, 0x8094e21, 0x0, 0x0)
net.*TCPListener·Accept+0x36 /home/jpic/src/go/src/pkg/net/tcpsock.go:263
	net.*TCPListener·Accept(0xb7697860, 0xb76a6f40, 0x0, 0x0, 0xb7697a50, ...)
http.Serve+0x6b /home/jpic/src/go/src/pkg/http/server.go:551
	http.Serve(0xb7697860, 0x0, 0x0, 0x0, 0x0, ...)
http.ListenAndServe+0x84 /home/jpic/src/go/src/pkg/http/server.go:596
	http.ListenAndServe(0xb76ef680, 0xb7697860, 0xb76ef660, 0xb7697818, 0xb76ef680, ...)
main.main+0xa3 /home/jpic/src/goserver/serve.go:47
	main.main()
mainstart+0xf /home/jpic/src/go/src/pkg/runtime/386/asm.s:83
	mainstart()
goexit /home/jpic/src/go/src/pkg/runtime/proc.c:145
	goexit()


*/