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// Copyright 2011 Google Inc. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
/*
Package mail provides the means of sending email from an
App Engine application.
Example:
msg := &mail.Message{
Sender: "romeo@montague.com",
To: []string{"Juliet <juliet@capulet.org>"},
Subject: "See you tonight",
Body: "Don't forget our plans. Hark, 'til later.",
}
if err := mail.Send(c, msg); err != nil {
log.Errorf(c, "Alas, my user, the email failed to sendeth: %v", err)
}
*/
package mail // import "google.golang.org/appengine/mail"
import (
"net/mail"
"github.com/golang/protobuf/proto"
"golang.org/x/net/context"
"google.golang.org/appengine/internal"
bpb "google.golang.org/appengine/internal/base"
pb "google.golang.org/appengine/internal/mail"
)
// A Message represents an email message.
// Addresses may be of any form permitted by RFC 822.
type Message struct {
// Sender must be set, and must be either an application admin
// or the currently signed-in user.
Sender string
ReplyTo string // may be empty
// At least one of these slices must have a non-zero length,
// except when calling SendToAdmins.
To, Cc, Bcc []string
Subject string
// At least one of Body or HTMLBody must be non-empty.
Body string
HTMLBody string
Attachments []Attachment
// Extra mail headers.
// See https://cloud.google.com/appengine/docs/go/mail/
// for permissible headers.
Headers mail.Header
}
// An Attachment represents an email attachment.
type Attachment struct {
// Name must be set to a valid file name.
Name string
Data []byte
ContentID string
}
// Send sends an email message.
func Send(c context.Context, msg *Message) error {
return send(c, "Send", msg)
}
// SendToAdmins sends an email message to the application's administrators.
func SendToAdmins(c context.Context, msg *Message) error {
return send(c, "SendToAdmins", msg)
}
func send(c context.Context, method string, msg *Message) error {
req := &pb.MailMessage{
Sender: &msg.Sender,
To: msg.To,
Cc: msg.Cc,
Bcc: msg.Bcc,
Subject: &msg.Subject,
}
if msg.ReplyTo != "" {
req.ReplyTo = &msg.ReplyTo
}
if msg.Body != "" {
req.TextBody = &msg.Body
}
if msg.HTMLBody != "" {
req.HtmlBody = &msg.HTMLBody
}
if len(msg.Attachments) > 0 {
req.Attachment = make([]*pb.MailAttachment, len(msg.Attachments))
for i, att := range msg.Attachments {
req.Attachment[i] = &pb.MailAttachment{
FileName: proto.String(att.Name),
Data: att.Data,
}
if att.ContentID != "" {
req.Attachment[i].ContentID = proto.String(att.ContentID)
}
}
}
for key, vs := range msg.Headers {
for _, v := range vs {
req.Header = append(req.Header, &pb.MailHeader{
Name: proto.String(key),
Value: proto.String(v),
})
}
}
res := &bpb.VoidProto{}
if err := internal.Call(c, "mail", method, req, res); err != nil {
return err
}
return nil
}
func init() {
internal.RegisterErrorCodeMap("mail", pb.MailServiceError_ErrorCode_name)
}
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