From 1b0c12018b46c2195a1f036a6d7c057c818b7b67 Mon Sep 17 00:00:00 2001
From: Stephan Bosch <stephan@rename-it.nl>
Date: Sat, 25 Apr 2015 11:42:06 +0200
Subject: [PATCH] imap: Implemented /private/specialuse METADATA entry for
 SPECIAL-USE capability.

---
 src/lib-storage/Makefile.am                  |  2 +
 src/lib-storage/mailbox-attribute-internal.c | 48 ++++++++++++++++++++
 src/lib-storage/mailbox-attribute-internal.h |  9 ++++
 src/lib-storage/mailbox-attribute.c          |  4 ++
 4 files changed, 63 insertions(+)
 create mode 100644 src/lib-storage/mailbox-attribute-internal.c
 create mode 100644 src/lib-storage/mailbox-attribute-internal.h

diff --git a/src/lib-storage/Makefile.am b/src/lib-storage/Makefile.am
index 822a053808..5492b9914c 100644
--- a/src/lib-storage/Makefile.am
+++ b/src/lib-storage/Makefile.am
@@ -45,6 +45,7 @@ libstorage_la_SOURCES = \
 	mail-thread.c \
 	mail-user.c \
 	mailbox-attribute.c \
+	mailbox-attribute-internal.c \
 	mailbox-get.c \
 	mailbox-guid-cache.c \
 	mailbox-header.c \
@@ -75,6 +76,7 @@ headers = \
 	mail-storage-settings.h \
 	mail-user.h \
 	mailbox-attribute.h \
+	mailbox-attribute-internal.h \
 	mailbox-attribute-private.h \
 	mailbox-guid-cache.h \
 	mailbox-list.h \
diff --git a/src/lib-storage/mailbox-attribute-internal.c b/src/lib-storage/mailbox-attribute-internal.c
new file mode 100644
index 0000000000..6c87b4b569
--- /dev/null
+++ b/src/lib-storage/mailbox-attribute-internal.c
@@ -0,0 +1,48 @@
+/* Copyright (c) 2003-2015 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "mail-storage-private.h"
+#include "mailbox-attribute-internal.h"
+
+/*
+ * Internal mailbox attributes
+ */
+
+ /* /private/specialuse (RFC 6154) */
+
+static int
+mailbox_attribute_specialuse_get(struct mailbox_transaction_context *t,
+  const char *key ATTR_UNUSED,
+	struct mail_attribute_value *value_r)
+{
+	const struct mailbox_settings *set = t->box->set;
+
+	if (set == NULL || *set->special_use == '\0')
+		return 0;
+
+	value_r->value = set->special_use;
+	return 1;
+}
+
+static struct mailbox_attribute_internal
+iattr_mbox_prv_special_use = {
+	.type = MAIL_ATTRIBUTE_TYPE_PRIVATE,
+	.key = MAILBOX_ATTRIBUTE_SPECIALUSE,
+	.rank = MAIL_ATTRIBUTE_INTERNAL_RANK_AUTHORITY,
+
+	.get = mailbox_attribute_specialuse_get
+};
+
+/*
+ * Registry
+ */
+
+void mailbox_attributes_internal_init(void)
+{
+	/*
+	 * Internal mailbox attributes
+	 */
+
+	/* /private/specialuse (RFC 6154) */
+	mailbox_attribute_register_internal(&iattr_mbox_prv_special_use);
+}
diff --git a/src/lib-storage/mailbox-attribute-internal.h b/src/lib-storage/mailbox-attribute-internal.h
new file mode 100644
index 0000000000..888780b2d1
--- /dev/null
+++ b/src/lib-storage/mailbox-attribute-internal.h
@@ -0,0 +1,9 @@
+#ifndef MAILBOX_ATTRIBUTE_INTERNAL_H
+#define MAILBOX_ATTRIBUTE_INTERNAL_H
+
+/* RFC 6154, Section 4: IMAP METADATA Entry for Special-Use Attributes */
+#define MAILBOX_ATTRIBUTE_SPECIALUSE "specialuse"
+
+void mailbox_attributes_internal_init(void);
+
+#endif
diff --git a/src/lib-storage/mailbox-attribute.c b/src/lib-storage/mailbox-attribute.c
index 9e4edd04c5..ba94e4711c 100644
--- a/src/lib-storage/mailbox-attribute.c
+++ b/src/lib-storage/mailbox-attribute.c
@@ -6,6 +6,7 @@
 #include "istream.h"
 #include "mail-storage-private.h"
 #include "bsearch-insert-pos.h"
+#include "mailbox-attribute-internal.h"
 
 static ARRAY(struct mailbox_attribute_internal) mailbox_internal_attributes;
 static pool_t mailbox_attribute_pool;
@@ -15,6 +16,9 @@ void mailbox_attributes_init(void)
 	mailbox_attribute_pool =
 		pool_alloconly_create("mailbox attributes", 2048);
 	i_array_init(&mailbox_internal_attributes, 32);
+
+	/* internal mailbox attributes */
+	mailbox_attributes_internal_init();
 }
 
 void mailbox_attributes_deinit(void)
-- 
2.47.3