1 files changed, 57 insertions, 0 deletions
diff --git a/pigeonhole/src/lib-sieve/plugins/special-use/ext-special-use.c b/pigeonhole/src/lib-sieve/plugins/special-use/ext-special-use.c
new file mode 100644
index 0000000..acbb13e
--- /dev/null
+++ b/pigeonhole/src/lib-sieve/plugins/special-use/ext-special-use.c
@@ -0,0 +1,57 @@
+/* Copyright (c) 2019 Pigeonhole authors, see the included COPYING file */
+
+/* Extension special-use
+ * ---------------------
+ *
+ * Authors: Stephan Bosch
+ * Specification: RFC 8579
+ * Implementation: full
+ * Status: testing
+ *
+ */
+
+#include "sieve-common.h"
+
+#include "sieve-code.h"
+#include "sieve-extensions.h"
+#include "sieve-actions.h"
+#include "sieve-commands.h"
+#include "sieve-validator.h"
+#include "sieve-generator.h"
+#include "sieve-interpreter.h"
+#include "sieve-result.h"
+
+#include "ext-special-use-common.h"
+
+/*
+ * Extension
+ */
+
+static bool
+ext_special_use_validator_load(const struct sieve_extension *ext,
+			       struct sieve_validator *valdtr);
+
+const struct sieve_extension_def special_use_extension = {
+	.name = "special-use",
+	.validator_load = ext_special_use_validator_load,
+	SIEVE_EXT_DEFINE_OPERATION(specialuse_exists_operation),
+	SIEVE_EXT_DEFINE_OPERAND(specialuse_operand)
+};
+
+static bool
+ext_special_use_validator_load(const struct sieve_extension *ext,
+			       struct sieve_validator *valdtr)
+{
+	/* Register :specialuse tag with fileinto command and we don't care
+	   whether this command is registered or even whether it will be
+	   registered at all. The validator handles either situation gracefully.
+	 */
+	sieve_validator_register_external_tag(
+		valdtr, "fileinto", ext, &specialuse_tag,
+		SIEVE_OPT_SIDE_EFFECT);
+
+	/* Register new test */
+	sieve_validator_register_command(valdtr, ext, &specialuse_exists_test);
+
+	return TRUE;
+}