Support TLS and Anonymous (#25)

Author: freedomkk-qfeng

README.md

@@ -47,6 +47,6 @@ curl http://$ip:4000/sender/mail -d "tos=a@a.com,b@b.com&subject=xx&content=yy"
 
 ## FAQ
 
-1.此插件目前不支持smtp SSL协议（不支持456等安全端口）
+1.如使用自建邮件系统请设置 skipVerify 为 true 以避免证书校验错误，即使未开启TLS。（因为默认会尝试StartTLS）
 
 2.对于126.163等邮箱请控制发信频率以免被封

cfg.json

@@ -8,6 +8,9 @@
         "addr": "mail.example.com:25",
         "username": "falcon@example.com",
         "password": "123456",
-        "from": "falcon@example.com"
+        "from": "falcon@example.com",
+        "tls":false,
+        "anonymous":false,
+        "skipVerify":true
     }
 }

config/config.go

@@ -15,10 +15,13 @@ type HttpConfig struct {
 }
 
 type SmtpConfig struct {
-	Addr     string `json:"addr"`
-	Username string `json:"username"`
-	Password string `json:"password"`
-	From     string `json:"from"`
+	Addr       string `json:"addr"`
+	Username   string `json:"username"`
+	Password   string `json:"password"`
+	From       string `json:"from"`
+	TLS        bool   `json:"tls"`
+	Anonymous  bool   `json:"anonymous"`
+	SkipVerify bool   `json:"skipVerify"`
 }
 
 type GlobalConfig struct {

config/const.go

@@ -1,5 +1,5 @@
 package config
 
 const (
-	VERSION = "0.0.1"
+	VERSION = "0.0.2"
 )

http/mail.go

@@ -24,7 +24,7 @@ func configProcRoutes() {
 		content := param.MustString(r, "content")
 		tos = strings.Replace(tos, ",", ";", -1)
 
-		s := smtp.New(cfg.Smtp.Addr, cfg.Smtp.Username, cfg.Smtp.Password)
+		s := smtp.NewSMTP(cfg.Smtp.Addr, cfg.Smtp.Username, cfg.Smtp.Password, cfg.Smtp.TLS, cfg.Smtp.Anonymous, cfg.Smtp.SkipVerify)
 		err := s.SendMail(cfg.Smtp.From, tos, subject, content)
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)