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recognize more charsets than utf-8/iso-8859-1/us-ascii when parsing message headers with address

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as they occur in From/To headers, for example: "From:
=?iso-8859-2?Q?Krist=FDna?= <k@example.com>".  we are using net/mail to parse
such headers. most address-parsing functions in that package will only decode
charsets utf-8, iso-8859-1 and us-ascii. we have to be careful to always use
net/mail.AddressParser with a WordDecoder that understands more that the
basics.

for issue #204 by morki, thanks for reporting!
This commit is contained in:
Mechiel Lukkien
2024-08-22 17:36:49 +02:00
parent 0bb4501472
commit 5678b03324
6 changed files with 64 additions and 15 deletions
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7
message/part_test.go
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@ -603,3 +603,10 @@ func TestNetMailAddress(t *testing.T) {
tcheck(t, err, "parse")
tcompare(t, p.Envelope.From, []Address{{"", `" "`, "example.com"}})
}
func TestParseQuotedCharset(t *testing.T) {
const s = "From: =?iso-8859-2?Q?Krist=FDna?= <k@example.com>\r\n\r\nbody\r\n"
p, err := EnsurePart(pkglog.Logger, false, strings.NewReader(s), int64(len(s)))
tcheck(t, err, "parse")
tcompare(t, p.Envelope.From, []Address{{"Kristýna", "k", "example.com"}})
}