Get as far as storing an incoming mail in crockery.db

internal/store/spool.go

@@ -0,0 +1,48 @@
+package store
+
+import (
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/mail"
+)
+
+type SpoolInterface interface {
+	SpoolMessage([]Account, io.Reader) error
+}
+
+// FIXME: we don't actually spool for now, we just store it to each user's
+// mailbox. This might lead to oddness in the partial delivery case.
+func (c *concrete) SpoolMessage(recipients []Account, r io.Reader) error {
+	message, err := mail.ReadMessage(r)
+	if err != nil {
+		return err
+	}
+
+	// FIXME: we can assign our own ID in this case
+	mid := message.Header.Get("Message-ID")
+	if mid == "" {
+		return fmt.Errorf("No Message-ID for this email")
+	}
+
+	body, err := ioutil.ReadAll(message.Body)
+	if err != nil {
+		return err
+	}
+
+	for _, recipient := range recipients {
+		message := Message{
+			ID:       mid,
+			Username: recipient.Username,
+			Mailbox:  "INBOX", // FIXME: at some point this will be changeable
+			Header:   message.Header,
+			Body:     body,
+		}
+
+		if err := c.CreateMessage(message); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}