client: add login_fail_exit params, default is true

if login_fail_exit is false, when frpc first login to server failed, it
    will continues relogin to server every 30 seconds.

.travis.yml

@@ -2,8 +2,8 @@ sudo: false
 language: go
 
 go:
-    - 1.7.5
-    - 1.8
+    - 1.7.x
+    - 1.8.x
 
 install:
     - make

client/control.go

@@ -106,9 +106,20 @@ func NewControl(svr *Service, pxyCfgs map[string]config.ProxyConf) *Control {
 // 7. In controler(): start new reader(), writer(), manager()
 // controler() will keep running
 func (ctl *Control) Run() error {
-	err := ctl.login()
-	if err != nil {
-		return err
+	for {
+		err := ctl.login()
+		if err != nil {
+			// if login_fail_exit is true, just exit this program
+			// otherwise sleep a while and continues relogin to server
+			if config.ClientCommonCfg.LoginFailExit {
+				return err
+			} else {
+				ctl.Warn("login to server fail: %v", err)
+				time.Sleep(30 * time.Second)
+			}
+		} else {
+			break
+		}
 	}
 
 	go ctl.controler()

conf/frpc.ini

-# [common] is integral section
 [common]
-# A literal address or host name for IPv6 must be enclosed
-# in square brackets, as in "[::1]:80", "[ipv6-host]:http" or "[ipv6-host%zone]:80"
-server_addr = 0.0.0.0
+server_addr = 127.0.0.1
 server_port = 7000
 
-# if you want to connect frps by http proxy, you can set http_proxy here or in global environment variables
-# http_proxy = http://user:pwd@192.168.1.128:8080
-
-# console or real logFile path like ./frpc.log
-log_file = ./frpc.log
-
-# trace, debug, info, warn, error
-log_level = info
-
-log_max_days = 3
-
-# for authentication
-privilege_token = 12345678
-
-# connections will be established in advance, default value is zero
-pool_count = 5
-
-# if tcp stream multiplexing is used, default is true, it must be same with frps
-tcp_mux = true
-
-# your proxy name will be changed to {user}.{proxy}
-user = your_name
-
-# heartbeat configure, it's not recommended to modify the default value
-# the default value of heartbeat_interval is 10 and heartbeat_timeout is 90
-# heartbeat_interval = 30
-# heartbeat_timeout = 90
-
-# ssh is the proxy name same as server's configuration
-# if user in [common] section is not empty, it will be changed to {user}.{proxy} such as your_name.ssh
 [ssh]
-# tcp | udp | http | https, default is tcp
 type = tcp
 local_ip = 127.0.0.1
 local_port = 22
-# true or false, if true, messages between frps and frpc will be encrypted, default is false
-use_encryption = false
-# if true, message will be compressed
-use_compression = false
-# remote port listen by frps
-remote_port = 6001
-
-[dns]
-type = udp
-local_ip = 114.114.114.114
-local_port = 53
-remote_port = 6002
-use_encryption = false
-use_compression = false
-
-# Resolve your domain names to [server_addr] so you can use http://web01.yourdomain.com to browse web01 and http://web02.yourdomain.com to browse web02
-[web01]
-type = http
-local_ip = 127.0.0.1
-local_port = 80
-use_encryption = false
-use_compression = true
-# http username and password are safety certification for http protocol
-# if not set, you can access this custom_domains without certification
-http_user = admin
-http_pwd = admin
-# if domain for frps is frps.com, then you can access [web01] proxy by URL http://test.frps.com
-subdomain = web01
-custom_domains = web02.yourdomain.com
-# locations is only useful for http type
-locations = /,/pic
-host_header_rewrite = example.com
-
-[web02]
-type = https
-local_ip = 127.0.0.1
-local_port = 8000
-use_encryption = false
-use_compression = false 
-subdomain = web01
-custom_domains = web02.yourdomain.com
-
-[unix_domain]
-type = tcp
-remote_port = 6001
-# if plugin is defined, local_ip and local_port is useless
-# plugin will handle connections got from frps
-plugin = unix_domain_socket
-# params set with prefix "plugin_" that plugin needed
-plugin_unix_path = /var/run/docker.sock
+remote_port = 6000

conf/frpc_full.ini

+# [common] is integral section
+[common]
+# A literal address or host name for IPv6 must be enclosed
+# in square brackets, as in "[::1]:80", "[ipv6-host]:http" or "[ipv6-host%zone]:80"
+server_addr = 0.0.0.0
+server_port = 7000
+
+# if you want to connect frps by http proxy, you can set http_proxy here or in global environment variables
+# http_proxy = http://user:pwd@192.168.1.128:8080
+
+# console or real logFile path like ./frpc.log
+log_file = ./frpc.log
+
+# trace, debug, info, warn, error
+log_level = info
+
+log_max_days = 3
+
+# for authentication
+privilege_token = 12345678
+
+# connections will be established in advance, default value is zero
+pool_count = 5
+
+# if tcp stream multiplexing is used, default is true, it must be same with frps
+tcp_mux = true
+
+# your proxy name will be changed to {user}.{proxy}
+user = your_name
+
+# decide if exit program when first login failed, otherwise continuous relogin to frps
+# default is true
+login_fail_exit = true
+
+# heartbeat configure, it's not recommended to modify the default value
+# the default value of heartbeat_interval is 10 and heartbeat_timeout is 90
+# heartbeat_interval = 30
+# heartbeat_timeout = 90
+
+# ssh is the proxy name same as server's configuration
+# if user in [common] section is not empty, it will be changed to {user}.{proxy} such as your_name.ssh
+[ssh]
+# tcp | udp | http | https, default is tcp
+type = tcp
+local_ip = 127.0.0.1
+local_port = 22
+# true or false, if true, messages between frps and frpc will be encrypted, default is false
+use_encryption = false
+# if true, message will be compressed
+use_compression = false
+# remote port listen by frps
+remote_port = 6001
+
+[dns]
+type = udp
+local_ip = 114.114.114.114
+local_port = 53
+remote_port = 6002
+use_encryption = false
+use_compression = false
+
+# Resolve your domain names to [server_addr] so you can use http://web01.yourdomain.com to browse web01 and http://web02.yourdomain.com to browse web02
+[web01]
+type = http
+local_ip = 127.0.0.1
+local_port = 80
+use_encryption = false
+use_compression = true
+# http username and password are safety certification for http protocol
+# if not set, you can access this custom_domains without certification
+http_user = admin
+http_pwd = admin
+# if domain for frps is frps.com, then you can access [web01] proxy by URL http://test.frps.com
+subdomain = web01
+custom_domains = web02.yourdomain.com
+# locations is only useful for http type
+locations = /,/pic
+host_header_rewrite = example.com
+
+[web02]
+type = https
+local_ip = 127.0.0.1
+local_port = 8000
+use_encryption = false
+use_compression = false 
+subdomain = web01
+custom_domains = web02.yourdomain.com
+
+[unix_domain_socket]
+type = tcp
+remote_port = 6001
+# if plugin is defined, local_ip and local_port is useless
+# plugin will handle connections got from frps
+plugin = unix_domain_socket
+# params set with prefix "plugin_" that plugin needed
+plugin_unix_path = /var/run/docker.sock

conf/frpc_min.ini

-[common]
-server_addr = 0.0.0.0
-server_port = 7000
-#privilege_token = 12345678
-
-[ssh]
-type = tcp
-local_ip = 127.0.0.1
-local_port = 22
-remote_port = 6000

conf/frps.ini

-# [common] is integral section
 [common]
-# A literal address or host name for IPv6 must be enclosed
-# in square brackets, as in "[::1]:80", "[ipv6-host]:http" or "[ipv6-host%zone]:80"
-bind_addr = 0.0.0.0
 bind_port = 7000
-
-# if you want to support virtual host, you must set the http port for listening (optional)
-vhost_http_port = 80
-vhost_https_port = 443
-
-# if you want to configure or reload frps by dashboard, dashboard_port must be set
-dashboard_port = 7500
-
-# dashboard user and pwd for basic auth protect, if not set, both default value is admin
-dashboard_user = admin
-dashboard_pwd = admin
-
-# dashboard assets directory(only for debug mode)
-# assets_dir = ./static
-# console or real logFile path like ./frps.log
-log_file = ./frps.log
-
-# trace, debug, info, warn, error
-log_level = info
-
-log_max_days = 3
-
-# privilege mode is the only supported mode since v0.10.0
-privilege_token = 12345678
-
-# heartbeat configure, it's not recommended to modify the default value
-# the default value of heartbeat_timeout is 90
-# heartbeat_timeout = 90
-
-# only allow frpc to bind ports you list, if you set nothing, there won't be any limit
-privilege_allow_ports = 2000-3000,3001,3003,4000-50000
-
-# pool_count in each proxy will change to max_pool_count if they exceed the maximum value
-max_pool_count = 5
-
-# authentication_timeout means the timeout interval (seconds) when the frpc connects frps
-# if authentication_timeout is zero, the time is not verified, default is 900s
-authentication_timeout = 900
-
-# if subdomain_host is not empty, you can set subdomain when type is http or https in frpc's configure file
-# when subdomain is test, the host used by routing is test.frps.com
-subdomain_host = frps.com
-
-# if tcp stream multiplexing is used, default is true
-tcp_mux = true

conf/frps_full.ini

+# [common] is integral section
+[common]
+# A literal address or host name for IPv6 must be enclosed
+# in square brackets, as in "[::1]:80", "[ipv6-host]:http" or "[ipv6-host%zone]:80"
+bind_addr = 0.0.0.0
+bind_port = 7000
+
+# if you want to support virtual host, you must set the http port for listening (optional)
+vhost_http_port = 80
+vhost_https_port = 443
+
+# if you want to configure or reload frps by dashboard, dashboard_port must be set
+dashboard_port = 7500
+
+# dashboard user and pwd for basic auth protect, if not set, both default value is admin
+dashboard_user = admin
+dashboard_pwd = admin
+
+# dashboard assets directory(only for debug mode)
+# assets_dir = ./static
+# console or real logFile path like ./frps.log
+log_file = ./frps.log
+
+# trace, debug, info, warn, error
+log_level = info
+
+log_max_days = 3
+
+# privilege mode is the only supported mode since v0.10.0
+privilege_token = 12345678
+
+# heartbeat configure, it's not recommended to modify the default value
+# the default value of heartbeat_timeout is 90
+# heartbeat_timeout = 90
+
+# only allow frpc to bind ports you list, if you set nothing, there won't be any limit
+privilege_allow_ports = 2000-3000,3001,3003,4000-50000
+
+# pool_count in each proxy will change to max_pool_count if they exceed the maximum value
+max_pool_count = 5
+
+# authentication_timeout means the timeout interval (seconds) when the frpc connects frps
+# if authentication_timeout is zero, the time is not verified, default is 900s
+authentication_timeout = 900
+
+# if subdomain_host is not empty, you can set subdomain when type is http or https in frpc's configure file
+# when subdomain is test, the host used by routing is test.frps.com
+subdomain_host = frps.com
+
+# if tcp stream multiplexing is used, default is true
+tcp_mux = true

conf/frps_min.ini

-[common]
-bind_addr = 0.0.0.0
-bind_port = 7000
-vhost_http_port = 80
-vhost_https_port = 443
-dashboard_port = 7500
-#privilege_token = 12345678

models/config/client_common.go

@@ -38,6 +38,7 @@ type ClientCommonConf struct {
 	PoolCount         int
 	TcpMux            bool
 	User              string
+	LoginFailExit     bool
 	HeartBeatInterval int64
 	HeartBeatTimeout  int64
 }
@@ -56,6 +57,7 @@ func GetDeaultClientCommonConf() *ClientCommonConf {
 		PoolCount:         1,
 		TcpMux:            true,
 		User:              "",
+		LoginFailExit:     true,
 		HeartBeatInterval: 30,
 		HeartBeatTimeout:  90,
 	}
@@ -134,6 +136,13 @@ func LoadClientCommonConf(conf ini.File) (cfg *ClientCommonConf, err error) {
 		cfg.User = tmpStr
 	}
 
+	tmpStr, ok = conf.Get("common", "login_fail_exit")
+	if ok && tmpStr == "false" {
+		cfg.LoginFailExit = false
+	} else {
+		cfg.LoginFailExit = true
+	}
+
 	tmpStr, ok = conf.Get("common", "heartbeat_timeout")
 	if ok {
 		v, err = strconv.ParseInt(tmpStr, 10, 64)