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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,81 @@ | ||
package emailer | ||
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||
import ( | ||
"crypto/tls" | ||
"fmt" | ||
"time" | ||
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mail "github.com/xhit/go-simple-mail/v2" | ||
) | ||
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type SmtpMail struct { | ||
hostname string | ||
port int | ||
username string | ||
password string | ||
authType mail.AuthType | ||
noTLSCheck bool | ||
fromName string | ||
from string | ||
} | ||
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func authType(authType string) mail.AuthType { | ||
switch authType { | ||
case "PLAIN": | ||
return mail.AuthPlain | ||
case "LOGIN": | ||
return mail.AuthLogin | ||
default: | ||
return mail.AuthNone | ||
} | ||
} | ||
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func NewSmtpMail(hostname string, port int, username string, password string, noTLSCheck bool, auth string, fromName, from string) *SmtpMail { | ||
ans := SmtpMail{hostname: hostname, port: port, username: username, password: password, noTLSCheck: noTLSCheck, fromName: fromName, from: from, authType: authType(auth)} | ||
return &ans | ||
} | ||
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func addressField(address string, name string) string { | ||
if name == "" { | ||
return address | ||
} | ||
return fmt.Sprintf("%s <%s>", name, address) | ||
} | ||
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func (o *SmtpMail) Send(toName string, to string, subject string, content string, attachments []Attachment) error { | ||
server := mail.NewSMTPClient() | ||
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server.Host = o.hostname | ||
server.Port = o.port | ||
server.Authentication = o.authType | ||
server.Username = o.username | ||
server.Password = o.password | ||
server.Encryption = mail.EncryptionSTARTTLS | ||
server.KeepAlive = false | ||
server.ConnectTimeout = 10 * time.Second | ||
server.SendTimeout = 10 * time.Second | ||
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if o.noTLSCheck { | ||
server.TLSConfig = &tls.Config{InsecureSkipVerify: true} | ||
} | ||
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smtpClient, err := server.Connect() | ||
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if err != nil { | ||
return err | ||
} | ||
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email := mail.NewMSG() | ||
email.SetFrom("From "+addressField(o.from, o.fromName)). | ||
AddTo(addressField(to, toName)). | ||
SetSubject(subject). | ||
SetBody(mail.TextHTML, content) | ||
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for _, v := range attachments { | ||
email.Attach(&mail.File{Name: v.Name, Data: v.Data}) | ||
} | ||
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err = email.Send(smtpClient) | ||
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return err | ||
} |
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