// We accept 'ssl'/'tls' as a protocol; it implies 'tcp' as the underlying
// protocol.
func dial(proto, addr, laddr string, tmout time.Duration) (net.Conn, error) {
// Set up our dialer options; we may need a local address and/or
// a connection timeout.
// TODO: happy eyeballs support, ie dialer.DualStack? This might be
// worth a command line switch.
var dialer net.Dialer
dialer.Timeout = tmout
if laddr != "" {
a, e := ResolveAddr(proto, laddr)
if e != nil {
return nil, e
}
dialer.LocalAddr = a
}
switch proto {
case "ssl", "tls":
// For testing I do not want to have to verify anything
// about the target certificates. I have other tools for
// that.
cfg := tls.Config{InsecureSkipVerify: true}
return tls.DialWithDialer(&dialer, "tcp", addr, &cfg)
case "sslver", "tlsver":
return tls.DialWithDialer(&dialer, "tcp", addr, nil)
}
return dialer.Dial(proto, addr)
}
// call sends an RPC to the rpcname handler on server srv
// with arguments args, waits for the reply, and leaves the
// reply in reply. the reply argument should be a pointer
// to a reply structure.
//
// the return value is true if the server responded, and false
// if call() was not able to contact the server. in particular,
// the replys contents are only valid if call() returned true.
func call(srv string, name string, clientAddr *string,
args interface{}, reply interface{}) bool {
var d net.Dialer
if clientAddr != nil {
// need to specify the port at 0
// let the kernel choose a random port
addr, _ := net.ResolveTCPAddr("tcp", ip(*clientAddr)+":0")
d.LocalAddr = addr
// also set the timeout
d.Timeout = timeOut
}
// tcp dial
conn, err := d.Dial("tcp", srv)
if err != nil {
err1 := err.(*net.OpError)
if err1.Err != syscall.ENOENT && err1.Err != syscall.ECONNREFUSED {
fmt.Printf("paxos Dial(%s) failed: %v\n", srv, err1)
}
return false
}
client := rpc.NewClient(conn)
defer conn.Close()
defer client.Close()
// rpc call
rpcErrChan := make(chan error)
go func() {
rpcErrChan <- client.Call(name, args, reply)
}()
select {
case <-time.After(timeOut):
return false
case err := <-rpcErrChan:
if err == nil {
return true
}
fmt.Println(err)
return false
}
}
func connectIPCServer(config *ProcessorConfig) error {
os.MkdirAll(config.Home+"/ipc", 0770)
remote := config.Home + "/ipc/" + config.ClusterName + ".sock"
local := config.Home + "/ipc/" + config.Name + ".sock"
//Unix client would connect failed if the unix socket file exist, so remove it first
os.Remove(local)
var dialer net.Dialer
//Bind local unix socket
dialer.LocalAddr = &net.UnixAddr{local, "unix"}
c, err := dialer.Dial("unix", remote)
if nil != err {
glog.Warningf("Failed to connect ssf framework for reason:%v", err)
return err
}
glog.Infof("SSF framwork IPC server connected.")
procipc.unixConn = c
return nil
}
func Client(cfg *Config) *Conn {
if cfg == nil {
cfg = NewConfig("__idiot__")
}
if cfg.Me == nil || cfg.Me.Nick == "" || cfg.Me.Ident == "" {
cfg.Me = state.NewNick("__idiot__")
cfg.Me.Ident = "goirc"
cfg.Me.Name = "Powered by GoIRC"
}
dialer := new(net.Dialer)
if cfg.LocalAddr != "" {
if !hasPort(cfg.LocalAddr) {
cfg.LocalAddr += ":0"
}
local, err := net.ResolveTCPAddr("tcp", cfg.LocalAddr)
if err == nil {
dialer.LocalAddr = local
} else {
logging.Error("irc.Client(): Cannot resolve local address %s: %s", cfg.LocalAddr, err)
}
}
conn := &Conn{
cfg: cfg,
dialer: dialer,
in: make(chan *Line, 32),
out: make(chan string, 32),
intHandlers: handlerSet(),
fgHandlers: handlerSet(),
bgHandlers: handlerSet(),
stRemovers: make([]Remover, 0, len(stHandlers)),
lastsent: time.Now(),
}
conn.addIntHandlers()
conn.initialise()
return conn
}
//发送请求
func (h *Httpx) Send() (response *http.Response, err error) {
if h.Url == "" {
return nil, errors.New("URL is empty")
}
defer func() {
if err != nil && h.ClientIP != "" {
err = errors.New(err.Error() + " client ip is " + h.ClientIP)
}
}()
var req *http.Request
if h.Method == "POST" {
req, _ = http.NewRequest("POST", h.Url, strings.NewReader(h.PostData.Encode()))
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
} else {
req, _ = http.NewRequest(h.Method, h.Url, nil)
}
//headers
if len(h.Headers) > 0 {
for k, v := range h.Headers {
req.Header.Set(k, v)
}
}
//cookies
if len(h.Cookies) > 0 {
for _, v := range h.Cookies {
req.AddCookie(v)
}
}
transport := &http.Transport{}
//是否使用代理
if h.ProxyUrl != "" {
proxy, err := url.Parse(h.ProxyUrl)
if err != nil {
return nil, err
}
transport.Proxy = http.ProxyURL(proxy)
}
//设置超时时间
dialer := net.Dialer{
Timeout: time.Duration(h.Timeout) * time.Second,
Deadline: time.Now().Add(time.Duration(h.Timeout) * time.Second),
}
//是否使用指定的IP发送请求
if h.ClientIP != "" {
transport.Dial = func(network, address string) (net.Conn, error) {
//本地地址 本地外网IP
lAddr, err := net.ResolveTCPAddr(network, h.ClientIP+":0")
if err != nil {
return nil, err
}
dialer.LocalAddr = lAddr
return dialer.Dial(network, address)
}
} else {
transport.Dial = func(network, address string) (net.Conn, error) {
return dialer.Dial(network, address)
}
}
client := &http.Client{
Transport: transport,
}
response, err = client.Do(req)
return response, err
}