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net/mail: export parseDate? #16657

themihai opened this issue Aug 10, 2016 · 1 comment

net/mail: export parseDate? #16657

themihai opened this issue Aug 10, 2016 · 1 comment


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@themihai themihai commented Aug 10, 2016

RFC5322 has resent fields. Therefore we need a key param on (Header).Date() method so that we can parse the "Resent-Date" header. I see 3 possible options:

// key is optional for backwards compatibility. If it's not set it parses "Date"
func (h Header) Date(key ...string) (time.Time, error)

// Parses "Resent-Date" header.
func (h Header) DateReset() (time.Time, error)

// Parse a date-time format as specified in rfc5322

func ParseDate(s string)(time.Time, error)
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@bradfitz bradfitz commented Aug 10, 2016

We can't change Header.Date.

Exposing "func ParseDate" seems fine. Of course, the workaround is pretty easy too:

func main() {
    h := mail.Header{"Resent-Date": {"Wed, 10 Aug 2016 02:37:48 -0700"}}

    fmt.Println(mail.Header{"Date": {h.Get("Resent-Date")}}.Date())
@bradfitz bradfitz added this to the Go1.8Maybe milestone Aug 10, 2016
@bradfitz bradfitz changed the title net/mail: (Header).Date() should support a key net/mail: export parseDate? Aug 10, 2016
@quentinmit quentinmit added the NeedsFix label Oct 10, 2016
@gopherbot gopherbot closed this in fc88a0f Oct 24, 2016
@golang golang locked and limited conversation to collaborators Oct 24, 2017
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