first commit

2015-06-14 23:53:32 -08:00
--- a/utils/mail.go
+++ b/utils/mail.go
@@ -0,0 +1,90 @@
+// Copyright (c) 2015 Spinpunch, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package utils
+
+import (
+	l4g "code.google.com/p/log4go"
+	"crypto/tls"
+	"fmt"
+	"github.com/mattermost/platform/model"
+	"net"
+	"net/mail"
+	"net/smtp"
+)
+
+func SendMail(to, subject, body string) *model.AppError {
+
+	fromMail := mail.Address{"", Cfg.EmailSettings.FeedbackEmail}
+	toMail := mail.Address{"", to}
+
+	headers := make(map[string]string)
+	headers["From"] = fromMail.String()
+	headers["To"] = toMail.String()
+	headers["Subject"] = subject
+	headers["MIME-version"] = "1.0"
+	headers["Content-Type"] = "text/html"
+
+	message := ""
+	for k, v := range headers {
+		message += fmt.Sprintf("%s: %s\r\n", k, v)
+	}
+	message += "\r\n<html><body>" + body + "</body></html>"
+
+	if len(Cfg.EmailSettings.SMTPServer) == 0 {
+		l4g.Warn("Skipping sending of email because EmailSettings are not configured")
+		return nil
+	}
+
+	host, _, _ := net.SplitHostPort(Cfg.EmailSettings.SMTPServer)
+
+	auth := smtp.PlainAuth("", Cfg.EmailSettings.SMTPUsername, Cfg.EmailSettings.SMTPPassword, host)
+
+	tlsconfig := &tls.Config{
+		InsecureSkipVerify: true,
+		ServerName:         host,
+	}
+
+	conn, err := tls.Dial("tcp", Cfg.EmailSettings.SMTPServer, tlsconfig)
+	if err != nil {
+		return model.NewAppError("SendMail", "Failed to open TLS connection", err.Error())
+	}
+	defer conn.Close()
+
+	c, err := smtp.NewClient(conn, host)
+	if err != nil {
+		l4g.Error("Failed to open a connection to SMTP server %v", err)
+		return model.NewAppError("SendMail", "Failed to open TLS connection", err.Error())
+	}
+	defer c.Quit()
+	defer c.Close()
+
+	if err = c.Auth(auth); err != nil {
+		return model.NewAppError("SendMail", "Failed to authenticate on SMTP server", err.Error())
+	}
+
+	if err = c.Mail(fromMail.Address); err != nil {
+		return model.NewAppError("SendMail", "Failed to add from email address", err.Error())
+	}
+
+	if err = c.Rcpt(toMail.Address); err != nil {
+		return model.NewAppError("SendMail", "Failed to add to email address", err.Error())
+	}
+
+	w, err := c.Data()
+	if err != nil {
+		return model.NewAppError("SendMail", "Failed to add email messsage data", err.Error())
+	}
+
+	_, err = w.Write([]byte(message))
+	if err != nil {
+		return model.NewAppError("SendMail", "Failed to write email message", err.Error())
+	}
+
+	err = w.Close()
+	if err != nil {
+		return model.NewAppError("SendMail", "Failed to close connection to SMTP server", err.Error())
+	}
+
+	return nil
+}