[PATCH 1/4] imap-send: add wrapper to get server credentials if needed

[Nicolas Morey-Chaisemartin <nicolas@xxxxxxxxxxxxxxxxxxxxxx>]

Signed-off-by: Nicolas Morey-Chaisemartin <nicolas@xxxxxxxxxxxxxxxxxxxxxx>
---
 imap-send.c | 38 ++++++++++++++++++++++++--------------
 1 file changed, 24 insertions(+), 14 deletions(-)

diff --git a/imap-send.c b/imap-send.c
index b2d0b849b..38b3c817e 100644
--- a/imap-send.c
+++ b/imap-send.c
@@ -926,6 +926,29 @@ static int auth_cram_md5(struct imap_store *ctx, struct imap_cmd *cmd, const cha
 	return 0;
 }
 
+static void server_fill_credential(struct imap_server_conf *srvc)
+{
+	struct credential cred = CREDENTIAL_INIT;
+
+	if (srvc->user && srvc->pass)
+		return;
+
+	cred.protocol = xstrdup(srvc->use_ssl ? "imaps" : "imap");
+	cred.host = xstrdup(srvc->host);
+
+	cred.username = xstrdup_or_null(srvc->user);
+	cred.password = xstrdup_or_null(srvc->pass);
+
+	credential_fill(&cred);
+
+	if (!srvc->user)
+		srvc->user = xstrdup(cred.username);
+	if (!srvc->pass)
+		srvc->pass = xstrdup(cred.password);
+
+	credential_clear(&cred);
+}
+
 static struct imap_store *imap_open_store(struct imap_server_conf *srvc, char *folder)
 {
 	struct credential cred = CREDENTIAL_INIT;
@@ -1078,20 +1101,7 @@ static struct imap_store *imap_open_store(struct imap_server_conf *srvc, char *f
 		}
 #endif
 		imap_info("Logging in...\n");
-		if (!srvc->user || !srvc->pass) {
-			cred.protocol = xstrdup(srvc->use_ssl ? "imaps" : "imap");
-			cred.host = xstrdup(srvc->host);
-
-			cred.username = xstrdup_or_null(srvc->user);
-			cred.password = xstrdup_or_null(srvc->pass);
-
-			credential_fill(&cred);
-
-			if (!srvc->user)
-				srvc->user = xstrdup(cred.username);
-			if (!srvc->pass)
-				srvc->pass = xstrdup(cred.password);
-		}
+		server_fill_credential(srvc);
 
 		if (srvc->auth_method) {
 			struct imap_cmd_cb cb;