1 files changed, 48 insertions, 0 deletions
diff --git a/src/auth/auth-fields.h b/src/auth/auth-fields.h
new file mode 100644
index 0000000..25c91c7
--- /dev/null
+++ b/src/auth/auth-fields.h
@@ -0,0 +1,48 @@
+#ifndef AUTH_FIELDS_H
+#define AUTH_FIELDS_H
+
+struct auth_request;
+
+enum auth_field_flags {
+	/* This field is internal to auth process and won't be sent to client */
+	AUTH_FIELD_FLAG_HIDDEN	= 0x01,
+	/* Changed since last snapshot. Set/cleared automatically. */
+	AUTH_FIELD_FLAG_CHANGED	= 0x02
+};
+
+struct auth_field {
+	const char *key, *value;
+	enum auth_field_flags flags;
+};
+ARRAY_DEFINE_TYPE(auth_field, struct auth_field);
+
+struct auth_fields *auth_fields_init(pool_t pool);
+void auth_fields_add(struct auth_fields *fields,
+		     const char *key, const char *value,
+		     enum auth_field_flags flags) ATTR_NULL(3);
+void auth_fields_reset(struct auth_fields *fields);
+void auth_fields_remove(struct auth_fields *fields, const char *key);
+
+const char *auth_fields_find(struct auth_fields *fields, const char *key);
+bool auth_fields_exists(struct auth_fields *fields, const char *key);
+
+void auth_fields_import(struct auth_fields *fields, const char *str,
+			enum auth_field_flags flags);
+void auth_fields_import_prefixed(struct auth_fields *fields, const char *prefix,
+				 const char *str, enum auth_field_flags flags);
+const ARRAY_TYPE(auth_field) *auth_fields_export(struct auth_fields *fields);
+/* Append fields where (flag & flags_mask) == flags_result. */
+void auth_fields_append(struct auth_fields *fields, string_t *dest,
+			enum auth_field_flags flags_mask,
+			enum auth_field_flags flags_result);
+bool auth_fields_is_empty(struct auth_fields *fields);
+/* If the field exists, clear its value (so the exported string will be "key"
+   instead of e.g. "key=y"). */
+void auth_fields_booleanize(struct auth_fields *fields, const char *key);
+
+/* Remember the current fields. */
+void auth_fields_snapshot(struct auth_fields *fields);
+/* Rollback to previous snapshot, or clear the fields if there isn't any. */
+void auth_fields_rollback(struct auth_fields *fields);
+
+#endif