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Merge pull request #853 from tossp/email

支持发送邮件内嵌附件
This commit is contained in:
astaxie 2014-10-12 11:02:53 +08:00
commit f9e991b538

View File

@ -157,19 +157,37 @@ func (e *Email) Bytes() ([]byte, error) {
}
// Add attach file to the send mail
func (e *Email) AttachFile(filename string) (a *Attachment, err error) {
func (e *Email) AttachFile(args ...string) (a *Attachment, err error) {
if len(args) < 1 && len(args) > 2 {
err = errors.New("Must specify a file name and number of parameters can not exceed at least two")
return
}
filename := args[0]
id := ""
if len(args) > 1 {
id = args[1]
}
f, err := os.Open(filename)
if err != nil {
return
}
ct := mime.TypeByExtension(filepath.Ext(filename))
basename := path.Base(filename)
return e.Attach(f, basename, ct)
return e.Attach(f, basename, ct, id)
}
// Attach is used to attach content from an io.Reader to the email.
// Parameters include an io.Reader, the desired filename for the attachment, and the Content-Type.
func (e *Email) Attach(r io.Reader, filename string, c string) (a *Attachment, err error) {
func (e *Email) Attach(r io.Reader, filename string, args ...string) (a *Attachment, err error) {
if len(args) < 1 && len(args) > 2 {
err = errors.New("Must specify the file type and number of parameters can not exceed at least two")
return
}
c := args[0] //Content-Type
id := ""
if len(args) > 1 {
id = args[1] //Content-ID
}
var buffer bytes.Buffer
if _, err = io.Copy(&buffer, r); err != nil {
return
@ -186,7 +204,12 @@ func (e *Email) Attach(r io.Reader, filename string, c string) (a *Attachment, e
// If the Content-Type is blank, set the Content-Type to "application/octet-stream"
at.Header.Set("Content-Type", "application/octet-stream")
}
at.Header.Set("Content-Disposition", fmt.Sprintf("attachment;\r\n filename=\"%s\"", filename))
if id != "" {
at.Header.Set("Content-Disposition", fmt.Sprintf("inline;\r\n filename=\"%s\"", filename))
at.Header.Set("Content-ID", fmt.Sprintf("<%s>", id))
} else {
at.Header.Set("Content-Disposition", fmt.Sprintf("attachment;\r\n filename=\"%s\"", filename))
}
at.Header.Set("Content-Transfer-Encoding", "base64")
e.Attachments = append(e.Attachments, at)
return at, nil
@ -269,7 +292,7 @@ func qpEscape(dest []byte, c byte) {
const nums = "0123456789ABCDEF"
dest[0] = '='
dest[1] = nums[(c&0xf0)>>4]
dest[2] = nums[(c & 0xf)]
dest[2] = nums[(c&0xf)]
}
// headerToBytes enumerates the key and values in the header, and writes the results to the IO Writer