Send mails that correspond to RFC2045 with a base64 line limit of 76 characters.

pull/159/merge v0.2.2
Fabrizio Steiner 6 years ago
parent 28dff65282
commit 09f047ab8b

@ -72,7 +72,12 @@ func (e *emailTypeNotifier) buildMessage(entries []*log.Entry) []byte {
for k, v := range header {
message += fmt.Sprintf("%s: %s\r\n", k, v)
}
message += "\r\n" + base64.StdEncoding.EncodeToString([]byte(body))
encodedBody := base64.StdEncoding.EncodeToString([]byte(body))
//RFC 2045 base64 encoding demands line no longer than 76 characters.
for _, line := range SplitSubN(encodedBody, 76) {
message += "\r\n" + line
}
return []byte(message)
}

@ -0,0 +1,24 @@
package notifications
import "bytes"
// SplitSubN splits a string into a list of string with each having
// a maximum number of characters n
func SplitSubN(s string, n int) []string {
sub := ""
subs := []string{}
runes := bytes.Runes([]byte(s))
l := len(runes)
for i, r := range runes {
sub = sub + string(r)
if (i+1)%n == 0 {
subs = append(subs, sub)
sub = ""
} else if (i + 1) == l {
subs = append(subs, sub)
}
}
return subs
}
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