imapc: Empty imapc_user expands to namespace's owner, or with public namespaces to...

The main idea is that with shared namespaces it now expands to the shared
username, allowing shared mailbox access via imapc.

diff --git a/src/lib-storage/index/imapc/imapc-storage.c b/src/lib-storage/index/imapc/imapc-storage.c
index 4a3e03410a6a13249c2cd1812529e8b020e1388d..24a0972094b28934862b9033c9e71448caa4c596 100644 (file)
--- a/src/lib-storage/index/imapc/imapc-storage.c
+++ b/src/lib-storage/index/imapc/imapc-storage.c
@@ -230,7 +230,12 @@ imapc_storage_create(struct mail_storage *_storage,
                return -1;
        }
        set.port = storage->set->imapc_port;
-       set.username = storage->set->imapc_user;
+       if (storage->set->imapc_user[0] != '\0')
+               set.username = storage->set->imapc_user;
+       else if (ns->owner != NULL)
+               set.username = ns->owner->username;
+       else
+               set.username = ns->user->username;
        set.master_user = storage->set->imapc_master_user;
        set.password = storage->set->imapc_password;
        if (*set.password == '\0') {