func (conn *SSHConnection) Request(sess *SessionConnection, ev event.Event) (err error, res event.Event) {
f := func(local, remote net.Conn, ch chan int) {
io.Copy(remote, local)
local.Close()
remote.Close()
ch <- 1
}
switch ev.GetType() {
case event.HTTP_REQUEST_EVENT_TYPE:
req := ev.(*event.HTTPRequestEvent)
if err := conn.initProxyConn(req.RawReq.Host, sess.Type == HTTPS_TUNNEL); nil != err {
return err, nil
}
if sess.Type == HTTPS_TUNNEL {
log.Printf("Session[%d]Request %s\n", req.GetHash(), util.GetURLString(req.RawReq, true))
sess.LocalRawConn.Write([]byte("HTTP/1.1 200 Connection established\r\n\r\n"))
ch := make(chan int)
go f(sess.LocalRawConn, conn.proxy_conn, ch)
go f(conn.proxy_conn, sess.LocalRawConn, ch)
<-ch
<-ch
conn.Close()
sess.State = STATE_SESSION_CLOSE
} else {
log.Printf("Session[%d]Request %s\n", req.GetHash(), util.GetURLString(req.RawReq, true))
err := req.RawReq.Write(conn.proxy_conn)
if nil != err {
conn.ssh_conn.CloseConn()
return err, nil
}
conn.proxy_conn.SetReadDeadline(time.Now().Add(10 * time.Second))
resp, err := http.ReadResponse(conn.proxy_conn_reader, req.RawReq)
if err != nil {
conn.ssh_conn.CloseConn()
return err, nil
}
var zero time.Time
conn.proxy_conn.SetReadDeadline(zero)
err = resp.Write(sess.LocalRawConn)
if nil == err {
err = resp.Body.Close()
}
if nil != err || !util.IsResponseKeepAlive(resp) || !util.IsRequestKeepAlive(req.RawReq) {
sess.LocalRawConn.Close()
conn.Close()
sess.State = STATE_SESSION_CLOSE
} else {
sess.State = STATE_RECV_HTTP
}
}
default:
}
return nil, nil
}
func (gae *GAEHttpConnection) doRangeFetch(req *http.Request, firstChunkRes *http.Response) {
task := new(rangeFetchTask)
task.FetchLimit = int(gae_cfg.FetchLimitSize)
task.FetchWorkerNum = int(gae_cfg.ConcurrentRangeFetcher)
task.SessionID = gae.sess.SessionID
// task.TaskValidation = func() bool {
// return !util.IsDeadConnection(gae.sess.LocalRawConn)
// }
gae.rangeWorker = task
fetch := func(preq *http.Request) (*http.Response, error) {
ev := new(event.HTTPRequestEvent)
ev.FromRequest(preq)
ev.SetHash(gae.sess.SessionID)
err, xres := gae.requestEvent(gaeHttpClient, gae.sess, ev)
if nil != err {
//try again
err, xres = gae.requestEvent(gaeHttpClient, gae.sess, ev)
}
if nil == err {
httpresev := xres.(*event.HTTPResponseEvent)
httpres := httpresev.ToResponse()
return httpres, err
}
return nil, err
}
pres, err := task.SyncGet(req, firstChunkRes, fetch)
if nil == err {
err = pres.Write(gae.sess.LocalRawConn)
if nil != err {
task.Close()
gae.rangeWorker = nil
}
if nil != pres.Body {
pres.Body.Close()
}
}
if nil != err {
log.Printf("Session[%d]Range task failed for reason:%v\n", gae.sess.SessionID, err)
}
if nil != err || !util.IsResponseKeepAlive(pres) || !util.IsRequestKeepAlive(req) {
gae.sess.LocalRawConn.Close()
gae.sess.State = STATE_SESSION_CLOSE
gae.Close()
}
}
func (auto *ForwardConnection) Request(conn *SessionConnection, ev event.Event) (err error, res event.Event) {
f := func(local, remote net.Conn) {
n, err := io.Copy(remote, local)
if nil != err {
local.Close()
remote.Close()
}
auto.forwardChan <- int(n)
}
//L:
auto.closed = false
switch ev.GetType() {
case event.HTTP_REQUEST_EVENT_TYPE:
req := ev.(*event.HTTPRequestEvent)
addr := req.RawReq.Host
if !strings.Contains(addr, ":") {
if conn.Type == HTTPS_TUNNEL {
addr = net.JoinHostPort(addr, "443")
} else {
addr = net.JoinHostPort(addr, "80")
}
}
err = auto.initForwardConn(addr, conn.Type == HTTPS_TUNNEL)
if nil != err {
log.Printf("Failed to connect forward address for %s.\n", addr)
return err, nil
}
if conn.Type == HTTPS_TUNNEL {
log.Printf("Session[%d]Request %s\n", req.GetHash(), util.GetURLString(req.RawReq, true))
if !auto.manager.overProxy || strings.HasPrefix(auto.conn_url.Scheme, "socks") {
conn.LocalRawConn.Write([]byte("HTTP/1.1 200 Connection established\r\n\r\n"))
} else {
auto.writeHttpRequest(req.RawReq)
}
go f(conn.LocalRawConn, auto.forward_conn)
go f(auto.forward_conn, conn.LocalRawConn)
atomic.AddInt32(&total_forwared_routine_num, 2)
<-auto.forwardChan
<-auto.forwardChan
atomic.AddInt32(&total_forwared_routine_num, -2)
auto.Close()
conn.State = STATE_SESSION_CLOSE
} else {
log.Printf("Session[%d]Request %s\n", req.GetHash(), util.GetURLString(req.RawReq, true))
if auto.manager.inject_crlf {
log.Printf("Session[%d]Inject CRLF for %s", ev.GetHash(), req.RawReq.Host)
auto.forward_conn.Write(CRLFs)
}
err := auto.writeHttpRequest(req.RawReq)
if nil != err {
return err, nil
}
if common.DebugEnable {
var tmp bytes.Buffer
req.RawReq.Write(&tmp)
log.Printf("Session[%d]Send request \n%s\n", ev.GetHash(), tmp.String())
}
resp, err := http.ReadResponse(auto.buf_forward_conn, req.RawReq)
if err != nil {
log.Printf("Session[%d]Recv response with error %v\n", ev.GetHash(), err)
return err, nil
}
//log.Printf("Session[%d]Recv response %v\n", ev.GetHash(), resp)
err = resp.Write(conn.LocalRawConn)
resp.Body.Close()
if common.DebugEnable {
var tmp bytes.Buffer
resp.Write(&tmp)
log.Printf("Session[%d]Recv response \n%s\n", ev.GetHash(), tmp.String())
}
if nil != err || !util.IsResponseKeepAlive(resp) || !util.IsRequestKeepAlive(req.RawReq) {
conn.LocalRawConn.Close()
auto.Close()
conn.State = STATE_SESSION_CLOSE
} else {
conn.State = STATE_RECV_HTTP
}
}
default:
}
return nil, nil
}
func (google *GoogleConnection) Request(conn *SessionConnection, ev event.Event) (err error, res event.Event) {
f := func(local, remote net.Conn, ch chan int) {
io.Copy(remote, local)
ch <- 1
local.Close()
remote.Close()
}
//L:
switch ev.GetType() {
case event.HTTP_REQUEST_EVENT_TYPE:
req := ev.(*event.HTTPRequestEvent)
if conn.Type == HTTPS_TUNNEL {
var proxyConn net.Conn
if len(googleLocalProxy) > 0 {
proxyURL, _ := url.Parse(googleLocalProxy)
proxyConn, err = net.Dial("tcp", proxyURL.Host)
addr, _ := getLocalHostMapping(GOOGLE_HTTPS)
connreq := req.RawReq
connreq.Host = addr
if nil == err {
connreq.Write(proxyConn)
}
} else {
addr := getGoogleHostport(true)
proxyConn, err = net.DialTimeout("tcp", addr, connTimeoutSecs)
if nil != err {
//try again
addr = getGoogleHostport(true)
proxyConn, err = net.DialTimeout("tcp", addr, connTimeoutSecs)
}
}
log.Printf("Session[%d]Request %s\n", req.GetHash(), util.GetURLString(req.RawReq, true))
if nil == err {
if len(googleLocalProxy) > 0 {
} else {
conn.LocalRawConn.Write([]byte("HTTP/1.1 200 Connection established\r\n\r\n"))
}
} else {
return fmt.Errorf("No google proxy reachable:%v", err), nil
}
ch := make(chan int)
go f(conn.LocalRawConn, proxyConn, ch)
go f(proxyConn, conn.LocalRawConn, ch)
atomic.AddInt32(&total_google_routine_num, 2)
<-ch
<-ch
atomic.AddInt32(&total_google_routine_num, -2)
proxyConn.Close()
google.Close()
conn.State = STATE_SESSION_CLOSE
} else {
google.proxyAddr = req.RawReq.Host
log.Printf("Session[%d]Request %s\n", req.GetHash(), util.GetURLString(req.RawReq, true))
req.RawReq.URL.Scheme = "http"
req.RawReq.RequestURI = ""
var resp *http.Response
tryProxy := func() (*http.Response, error) {
if google.manager == httpGoogleManager {
return httpGoogleClient.Do(req.RawReq)
}
return httpsGoogleClient.Do(req.RawReq)
}
resp, err = tryProxy()
if nil != err && strings.EqualFold(req.Method, "GET") {
//try proxy again
resp, err = tryProxy()
}
if nil != err {
var tmp bytes.Buffer
req.RawReq.Write(&tmp)
log.Printf("Session[%d]Request error:%v\n%s\n", req.GetHash(), err, tmp.String())
return err, nil
}
err = resp.Write(conn.LocalRawConn)
if nil != err || !util.IsResponseKeepAlive(resp) || !util.IsRequestKeepAlive(req.RawReq) {
conn.LocalRawConn.Close()
conn.State = STATE_SESSION_CLOSE
} else {
log.Printf("Session[%d]Res %d %v\n", req.GetHash(), resp.StatusCode, resp.Header)
conn.State = STATE_RECV_HTTP
}
}
default:
}
return nil, nil
}
func (gae *GAEHttpConnection) Request(conn *SessionConnection, ev event.Event) (err error, res event.Event) {
gae.closed = false
gae.sess = conn
if gae.over_tunnel {
return gae.requestOverTunnel(conn, ev)
}
if nil == gae.gaeAuth {
gae.gaeAuth = gae.manager.auths.Select().(*GAEAuth)
}
if ev.GetType() == event.HTTP_REQUEST_EVENT_TYPE {
httpreq := ev.(*event.HTTPRequestEvent)
if strings.EqualFold(httpreq.Method, "CONNECT") {
// //try https over tunnel
// if gae.gaeAuth.support_tunnel {
// gae.over_tunnel = true
// return gae.requestOverTunnel(conn, ev)
// }
log.Printf("Session[%d]Request %s\n", httpreq.GetHash(), util.GetURLString(httpreq.RawReq, true))
conn.LocalRawConn.Write([]byte("HTTP/1.1 200 Connection established\r\n\r\n"))
tlscfg, err := common.TLSConfig(httpreq.GetHeader("Host"))
if nil != err {
return err, nil
}
conn.LocalRawConn = tls.Server(conn.LocalRawConn, tlscfg)
conn.LocalBufferConn = bufio.NewReader(conn.LocalRawConn)
conn.State = STATE_RECV_HTTP
conn.Type = HTTPS_TUNNEL
return nil, nil
} else {
if httpreq.Content.Len() == 0 {
body := make([]byte, httpreq.RawReq.ContentLength)
io.ReadFull(httpreq.RawReq.Body, body)
httpreq.Content.Write(body)
}
scheme := "http://"
if conn.Type == HTTPS_TUNNEL {
scheme = "https://"
}
if !strings.HasPrefix(httpreq.Url, scheme) {
httpreq.Url = scheme + httpreq.RawReq.Host + httpreq.Url
}
log.Printf("Session[%d]Request %s\n", httpreq.GetHash(), util.GetURLString(httpreq.RawReq, true))
var httpres *http.Response
if strings.EqualFold(httpreq.Method, "GET") {
if hostPatternMatched(gae_cfg.InjectRange, httpreq.RawReq.Host) || gae.inject_range {
//conn.State = STATE_RECV_HTTP
gae.doRangeFetch(httpreq.RawReq, nil)
return nil, nil
}
}
err, res = gae.requestEvent(gaeHttpClient, conn, ev)
if nil != err {
//try again
err, res = gae.requestEvent(gaeHttpClient, conn, ev)
}
if nil != err || nil == res {
return
}
conn.State = STATE_RECV_HTTP
httpresev := res.(*event.HTTPResponseEvent)
if httpresev.Status == 403 {
log.Printf("ERROR:Session[%d]Request %s %s is forbidon\n", httpreq.GetHash(), httpreq.Method, httpreq.RawReq.Host)
}
httpres, err = gae.handleHttpRes(conn, httpreq, httpresev)
// if nil != httpres {
// log.Printf("Session[%d]Response %d %v\n", httpreq.GetHash(), httpres.StatusCode, httpres.Header)
// }
if nil != err || !util.IsResponseKeepAlive(httpres) || !util.IsRequestKeepAlive(httpreq.RawReq) {
conn.LocalRawConn.Close()
conn.State = STATE_SESSION_CLOSE
gae.Close()
}
return err, nil
}
}
return gae.requestEvent(gaeHttpClient, conn, ev)
}