diff --git a/hooks/post_app_addaccess b/hooks/post_app_addaccess
new file mode 100644
index 0000000..9b5a189
--- /dev/null
+++ b/hooks/post_app_addaccess
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+source /etc/yunohost/apps/chatonsinfos/scripts/_common.sh
+source /usr/share/yunohost/helpers
+app=$1
+install_dir=/var/www/chatonsinfos/
+service_path=${install_dir}public/${app}.properties
+local groups_added=$4
+local app_info="$(yunohost app info $app --full --json)"
+get_info() {
+    echo $app_info | jq -r ".$1"
+}
+if [[ "$groups_added" == *"visitors"* ]]
+then
+    registration=$(ynh_read_var_in_file --file="$service_path" --key="service.registration")
+    local ldap="$(get_info 'manifest.integration.ldap')"
+    local sso="$(get_info 'manifest.integration.sso')"
+    if [[ "$registration" != "None"  &&  "$registration" != "Free" ]]
+    then
+        if [[ "$ldap" == "not_relevant"  &&  "$sso" == "not_relevant" ]]
+        then
+            registration="None"
+        elif [[ "$ldap" == "false" ]]
+        then
+            registration="Free"
+        fi
+        ynh_write_var_in_file --file="$service_path" --key="service.registration" --value="$registration"
+    fi
+fi
diff --git a/hooks/post_app_removeaccess b/hooks/post_app_removeaccess
new file mode 100644
index 0000000..ec62a29
--- /dev/null
+++ b/hooks/post_app_removeaccess
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+source /etc/yunohost/apps/chatonsinfos/scripts/_common.sh
+source /usr/share/yunohost/helpers
+app=$1
+install_dir=/var/www/chatonsinfos/
+service_path=${install_dir}public/${app}.properties
+local groups_removed=$4
+local app_info="$(yunohost app info $app --full --json)"
+get_info() {
+    echo $app_info | jq -r ".$1"
+}
+if [[ "$groups_removed" == *"visitors"* ]]
+then
+    registration=$(ynh_read_var_in_file --file="$service_path" --key="service.registration")
+    local ldap="$(get_info 'manifest.integration.ldap')"
+    local sso="$(get_info 'manifest.integration.sso')"
+    if [[ "$registration" != "Member"  &&  "$registration" != "Client" ]]
+    then
+        ynh_write_var_in_file --file="$service_path" --key="service.registration" --value="Member"
+    fi
+fi
diff --git a/hooks/post_app_restore b/hooks/post_app_restore
new file mode 100644
index 0000000..085c37c
--- /dev/null
+++ b/hooks/post_app_restore
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+source /etc/yunohost/apps/chatonsinfos/scripts/_common.sh
+source /usr/share/yunohost/helpers
+
+install_dir=/var/www/chatonsinfos/
+generate_config_panel
+update_subs