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