search: add rcpts fields to header in search criteria

Add recipients fields (from, to, cc) to the header for filtering and
searching for the maildir and mbox backends.

Fixes: commit 8464b373 ("search: use a common api for all workers")
Reported-by: Vitaly Ovchinnikov <v@ovch.ru>
Signed-off-by: Koni Marti <koni.marti@gmail.com>
Acked-by: Robin Jarry <robin@jarry.cc>
Tested-by: Vitaly Ovchinnikov <v@ovch.ru>

1 files changed, 18 insertions, 0 deletions

diff --git a/worker/types/search.go b/worker/types/search.go
index b1960cad..93a0053d 100644
--- a/worker/types/search.go
+++ b/worker/types/search.go
@@ -22,6 +22,24 @@ type SearchCriteria struct {
 	Terms        string
 }
 
+func (c *SearchCriteria) PrepareHeader() {
+	if c == nil {
+		return
+	}
+	if c.Headers == nil {
+		c.Headers = make(textproto.MIMEHeader)
+	}
+	for _, from := range c.From {
+		c.Headers.Add("From", from)
+	}
+	for _, to := range c.To {
+		c.Headers.Add("To", to)
+	}
+	for _, cc := range c.Cc {
+		c.Headers.Add("Cc", cc)
+	}
+}
+
 func (c *SearchCriteria) Combine(other *SearchCriteria) *SearchCriteria {
 	if c == nil {
 		return other