35 lines
1009 B
Go
35 lines
1009 B
Go
package messenger
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import "net/textproto"
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// Messenger is an interface for a generic messaging backend,
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// for instance, e-mail, SMS etc.
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type Messenger interface {
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Name() string
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Push(fromAddr string, toAddr []string, subject string, message []byte, atts []*Attachment) error
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Flush() error
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}
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// Attachment represents a file or blob attachment that can be
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// sent along with a message by a Messenger.
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type Attachment struct {
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Name string
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Header textproto.MIMEHeader
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Content []byte
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}
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// MakeAttachmentHeader is a helper function that returns a
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// textproto.MIMEHeader tailored for attachments, primarily
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// email. If no encoding is given, base64 is assumed.
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func MakeAttachmentHeader(filename, encoding string) textproto.MIMEHeader {
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if encoding == "" {
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encoding = "base64"
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}
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h := textproto.MIMEHeader{}
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h.Set("Content-Disposition", "attachment; filename="+filename)
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h.Set("Content-Type", "application/json; name=\""+filename+"\"")
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h.Set("Content-Transfer-Encoding", "base64")
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return h
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}
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