From b701d8c0b04d88d5ddb26ed292d2e9897f8fec6c Mon Sep 17 00:00:00 2001
From: Aleksandr Nogikh <nogikh@google.com>
Date: Sun, 6 Nov 2022 19:34:26 +0000
Subject: pkg/email: add support for Sender extraction

---
 pkg/email/parser.go | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'pkg/email/parser.go')

diff --git a/pkg/email/parser.go b/pkg/email/parser.go
index d7bf40a0f..2975d2de7 100644
--- a/pkg/email/parser.go
+++ b/pkg/email/parser.go
@@ -24,6 +24,7 @@ type Email struct {
 	Subject     string
 	From        string
 	Cc          []string
+	Sender      string
 	Body        string  // text/plain part
 	Patch       string  // attached patch, if any
 	Command     Command // command to bot
@@ -97,6 +98,17 @@ func Parse(r io.Reader, ownEmails []string) (*Email, error) {
 		}
 	}
 	ccList = MergeEmailLists(ccList)
+
+	sender := ""
+	senders, err := msg.Header.AddressList("Sender")
+	if err != nil {
+		if err != mail.ErrHeaderNotPresent {
+			return nil, err
+		}
+	} else if len(senders) > 0 {
+		sender = senders[0].Address
+	}
+
 	body, attachments, err := parseBody(msg.Body, msg.Header)
 	if err != nil {
 		return nil, err
@@ -128,6 +140,7 @@ func Parse(r io.Reader, ownEmails []string) (*Email, error) {
 		Subject:     subject,
 		From:        from[0].String(),
 		Cc:          ccList,
+		Sender:      sender,
 		Body:        bodyStr,
 		Patch:       patch,
 		Command:     cmd,
-- 
cgit mrf-deployment