chore(gorush): add timeout for http client (#473)

* chore(gorush): add timeout for http client

dispatch feedback url

See: https://github.com/appleboy/gorush/issues/449

* docs: update readme

config/config.go

@@ -21,6 +21,7 @@ core:
   max_notification: 100
   sync: false # set true if you need get error message from fail push notification in API response.
   feedback_hook_url: "" # set webhook url if you need get error message asynchronously from fail push notification in API response.
+  feedback_timeout: 10 # default is 10 second
   mode: "release"
   ssl: false
   cert_path: "cert.pem"
@@ -118,6 +119,7 @@ type SectionCore struct {
 	KeyBase64       string         `yaml:"key_base64"`
 	HTTPProxy       string         `yaml:"http_proxy"`
 	FeedbackURL     string         `yaml:"feedback_hook_url"`
+	FeedbackTimeout int64          `yaml:"feedback_timeout"`
 	PID             SectionPID     `yaml:"pid"`
 	AutoTLS         SectionAutoTLS `yaml:"auto_tls"`
 }
@@ -262,6 +264,7 @@ func LoadConf(confPath string) (ConfYaml, error) {
 	conf.Core.Mode = viper.GetString("core.mode")
 	conf.Core.Sync = viper.GetBool("core.sync")
 	conf.Core.FeedbackURL = viper.GetString("core.feedback_hook_url")
+	conf.Core.FeedbackTimeout = int64(viper.GetInt("core.feedback_timeout"))
 	conf.Core.SSL = viper.GetBool("core.ssl")
 	conf.Core.CertPath = viper.GetString("core.cert_path")
 	conf.Core.KeyPath = viper.GetString("core.key_path")