// build a request based on an existing http.Request
func getRequest(reqid uint16, conn http.ResponseWriter, req *http.Request) *request {
r := &request{
reqId: reqid,
// this is not right because whether the ws<->fcgi connection stays
// up is separate from whether the browser<->ws connection goes down
// close: req.Close,
params: map[string]string{
"SERVER_SOFTWARE": "fcgigo-handler",
"HTTP_HOST": req.Host,
"SERVER_NAME": req.Host,
"REQUEST_URI": req.RawURL,
"REQUEST_METHOD": req.Method,
"GATEWAY_INTERFACE": "FCGI/1.0",
"SERVER_PORT": "0", //TODO
"SERVER_ADDR": "127.0.0.1",
"SERVER_PROTOCOL": req.Proto,
"REMOTE_PORT": "0",
"REMOTE_ADDR": conn.RemoteAddr(),
// TODO: this wouldn't be defined for a remote responder, but would
// if it were spawned. deferred until we support dynamic spawning again
// (ie have unit tests).
"SCRIPT_FILENAME": "",
// TODO: this should be the path portion of the url matched by the
// ServeMux pattern
"SCRIPT_NAME": req.URL.Path,
// TODO: this should be the remainder of the path AFTER the ServeMux
// pattern is stripped from the front
"PATH_INFO": "",
"DOCUMENT_ROOT": "",
"PATH_TRANSLATED": "", // depends on PATH_INFO and DOCUMENT_ROOT
"QUERY_STRING": req.URL.RawQuery,
},
stdin: new(bytes.Buffer),
}
// set a default DOCUMENT_ROOT
if dir, err := os.Getwd(); err != nil {
r.params["DOCUMENT_ROOT"] = dir
}
// patch the ?query_string to include the #fragment
if len(req.URL.Fragment) > 0 {
r.params["QUERY_STRING"] = r.params["QUERY_STRING"] + "#" + req.URL.Fragment
}
// carry over the content-length
if c, ok := req.Header["Content-Length"]; ok {
r.params["CONTENT_LENGTH"] = c
}
mapFunc := func(c int) int {
if c == '-' {
return '_'
}
return c
}
// store the HTTP_HEADER_NAME version of each header
for k, v := range req.Header {
k = strings.Map(mapFunc, "HTTP_"+strings.ToUpper(k))
r.params[k] = v
}
return r
}
func logResponse(w http.ResponseWriter, r *http.Request) {
fmt.Printf(
"%s - - [%s] \"%s %s %s\" - - \"%s\" \"%s\"\n",
w.RemoteAddr(),
time.UTC().Format("10/Jan/2006:15:04:05 -0700"),
r.Method,
r.URL.Path,
r.Proto,
r.Referer,
r.UserAgent)
}
func log(stamp int64, w io.Writer, rw http.ResponseWriter, req *http.Request) {
addr := rw.RemoteAddr()
// Strip port number. Make sure we don't cut off bits of the actual IP if we
// have an IPv6 address. It will be encased in [ and ]. eg: [::1]:1234
if idx := strings.LastIndex(addr, ":"); idx > strings.LastIndex(addr, "]") {
addr = addr[:idx]
}
fmt.Fprintf(w, "%d %s %s\n", stamp, addr, req.URL)
}
func log(rw http.ResponseWriter, req *http.Request) {
reqtime := time.Nanoseconds() / 1000
addr := rw.RemoteAddr()
// Strip port number. Make sure we don't cut off bits of the actual IP if we
// have an IPv6 address. It will be encased in [ and ]. eg: [::1]:1234
if idx := strings.LastIndex(addr, ":"); idx > strings.LastIndex(addr, "]") {
addr = addr[:idx]
}
fmt.Fprintf(os.Stdout, "[i] %d %s %s\n", reqtime, addr, req.URL)
}
func httpHandler(rw http.ResponseWriter, req *http.Request) {
log(rw, req)
cookies := ParseCookies(req)
var session *Session
if id := GetSecureCookie(cookies, "mudkip_id"); len(id) > 0 {
if session = context.GetSession(id); session == nil {
SetSecureCookie(rw, "mudkip_id", "", "/", -1)
}
} else {
session = context.CreateSession(rw.RemoteAddr())
SetSecureCookie(rw, "mudkip_id", session.Id, "/", 2592000)
}
}
// ServeHTTP implements an http.Handler that answers RPC requests.
func (server *Server) ServeHTTP(w http.ResponseWriter, req *http.Request) {
if req.Method != "CONNECT" {
w.SetHeader("Content-Type", "text/plain; charset=utf-8")
w.WriteHeader(http.StatusMethodNotAllowed)
io.WriteString(w, "405 must CONNECT\n")
return
}
conn, _, err := w.Hijack()
if err != nil {
log.Print("rpc hijacking ", w.RemoteAddr(), ": ", err.String())
return
}
io.WriteString(conn, "HTTP/1.0 "+connected+"\n\n")
server.ServeConn(conn)
}
func evServer(w http.ResponseWriter, r *http.Request) {
wevs := make(chan store.Event)
logger := util.NewLogger(w.RemoteAddr())
path := r.URL.Path[len(evPrefix):]
logger.Println("new", path)
evs := Store.Watch(path + "**")
// TODO convert store.Snapshot to json and use that
go func() {
walk(path, Store, wevs)
close(wevs)
}()
websocket.Handler(func(ws *websocket.Conn) {
send(ws, path, wevs, logger)
send(ws, path, evs, logger)
ws.Close()
}).ServeHTTP(w, r)
}
func (h *logHandler) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
// Strip port number from address
addr := rw.RemoteAddr()
if colon := strings.LastIndex(addr, ":"); colon != -1 {
addr = addr[:colon]
}
lr := &logRecord{
time: time.UTC(),
ip: addr,
method: r.Method,
rawpath: r.URL.RawPath,
userAgent: r.UserAgent,
referer: r.Referer,
responseStatus: http.StatusOK,
proto: r.Proto,
rw: rw,
}
h.handler.ServeHTTP(lr, r)
h.ch <- lr
}
func newRequest(hr *http.Request, hc http.ResponseWriter) *Request {
remoteAddr, _ := net.ResolveTCPAddr(hc.RemoteAddr())
req := Request{
Method: hr.Method,
RawURL: hr.RawURL,
URL: hr.URL,
Proto: hr.Proto,
ProtoMajor: hr.ProtoMajor,
ProtoMinor: hr.ProtoMinor,
Headers: hr.Header,
Body: hr.Body,
Close: hr.Close,
Host: hr.Host,
Referer: hr.Referer,
UserAgent: hr.UserAgent,
Params: hr.Form,
RemoteAddr: remoteAddr.IP.String(),
RemotePort: remoteAddr.Port,
}
return &req
}
func NewServiceContext(rw http.ResponseWriter, req *http.Request) *ServiceContext {
sc := new(ServiceContext)
sc.Conn = rw
sc.Req = req
sc.Compressed = false
sc.Cookies = ParseCookies(req)
if id := GetSecureCookie(sc.Cookies, "mudkip_id"); len(id) > 0 {
if sc.Session = context.GetSession(id); sc.Session == nil {
sc.Session = context.CreateSession(rw.RemoteAddr())
SetSecureCookie(rw, "mudkip_id", sc.Session.Id, "/", 2592000)
}
} else {
sc.Session = context.CreateSession(rw.RemoteAddr())
SetSecureCookie(rw, "mudkip_id", sc.Session.Id, "/", 2592000)
}
if v, ok := req.Header["Accept-Encoding"]; ok {
sc.Compressed = strings.Index(v, "gzip") != -1
}
return sc
}
func HandleGarage(conn http.ResponseWriter, req *http.Request) {
timeString := req.FormValue("t")
requestTime, err := strconv.Atoi64(timeString)
if len(timeString) == 0 || err != nil {
conn.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(conn, "Missing/bogus 't' query parameter.")
return
}
if requestTime < time.Seconds()-60 {
conn.WriteHeader(http.StatusForbidden)
fmt.Fprintf(conn, "Request too old.")
return
}
key := req.FormValue("key")
if len(key) == 0 {
conn.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(conn, "Missing 'key' query parameter.")
return
}
secretHasher := hmac.NewSHA1([]byte(sharedSecret))
fmt.Fprint(secretHasher, timeString)
expectedHash := fmt.Sprintf("%40x", secretHasher.Sum())
if key != expectedHash {
conn.WriteHeader(http.StatusForbidden)
fmt.Fprintf(conn, "Signature fail.")
return
}
lastOpenMutex.Lock()
defer lastOpenMutex.Unlock()
now := time.Seconds()
if lastOpenTime > now-10 {
conn.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(conn, "Too soon, considering this a dup.")
return
}
lastOpenTime = now
fmt.Println("Opening garage door...")
cmd, err := exec.Run(
*heyUPath,
[]string{"heyu", "on", *x10Unit},
os.Environ(),
"/",
exec.DevNull, // stdin
exec.DevNull, // stdout
exec.MergeWithStdout) // stderr
if err != nil {
GarageOpenError(conn, err)
return
}
fmt.Printf("Started heyu with pid %v\n", cmd.Pid)
waitmsg, err := cmd.Wait(0)
if err != nil {
GarageOpenError(conn, err)
return
}
fmt.Printf("WaitMsg: %v\n", waitmsg)
if waitmsg.WaitStatus != 0 {
conn.WriteHeader(http.StatusInternalServerError)
fmt.Fprintf(conn, "x10 command returned error opening garage: %v", err)
return
}
fmt.Fprint(conn, "Opened.")
fmt.Printf("Garage opened at %v from %v\n",
time.LocalTime(),
conn.RemoteAddr())
}
