[PATCH v2 2/2] header-zone: refactor hook_config_destroy

[Jonatan Schlag <jonatan.schlag@ipfire.org>]

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We now just bring the hook down, execute hook_destroy which can be not empty inside the hook,
because it is defined in src/header-config.
After this we delete the config file.

Fixes: #11416

Signed-off-by: Jonatan Schlag <jonatan.schlag(a)ipfire.org>
---
 src/header-config |  4 ++++
 src/header-zone   | 16 +++++++++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/header-config b/src/header-config
index b697797..d55d7e5 100644
--- a/src/header-config
+++ b/src/header-config
@@ -22,3 +22,7 @@
 hook_new() {
 	cmd_not_implemented
 }
+
+hook_destroy() {
+	return ${EXIT_OK}
+}
diff --git a/src/header-zone b/src/header-zone
index 2e3fa09..4d3c251 100644
--- a/src/header-zone
+++ b/src/header-zone
@@ -221,7 +221,21 @@ hook_config_destroy() {
 	local hook=$(zone_config_get_hook_from_id ${zone}  ${id})
 	assert isset hook
 
-	hook_config_cmd "destroy" "${zone}" "${hook}" "${hook}.${id}" "$@"
+	# First we bring the hook down
+	hook_config_cmd "down" "${zone}" "${hook}" "${hook}.${id}"
+
+	# If a hook_destroy function is implemented in the hook this function will be executed.
+	# If not a empty defined in header-config is executed.
+	if ! hook_config_cmd "destroy" "${zone}" "${hook}" "${hook}.${id}" "$@"; then
+
+		# A better error message should printed inside the hook.
+		# We will not bring the config up because we do not know if it is safe or if some parts are already destroyed.
+		log ERROR "Could not destroy config with the follwoing id: ${id}"
+		return ${EXIT_ERROR}
+	fi
+
+	# Now we delete the config of the zone
+	zone_config_settings_destroy "${zone}" "${hook}.${id}"
 }
 
 hook_config_edit() {
-- 
2.6.3