feat(identity): explicit revocation

Closes #14 (closed)

pallets/identity/src/lib.rs

@@ -566,6 +566,54 @@ pub mod pallet {
             }
         }
         #[pallet::weight(0)]
+        pub fn del_all_rights(
+            origin: OriginFor<T>,
+            idty_index: T::IdtyIndex,
+        ) -> DispatchResultWithPostInfo {
+            T::DelRightOrigin::ensure_origin(origin)?;
+
+            if let Ok(mut idty_value) = <Identities<T>>::try_get(idty_index) {
+                if idty_value.status != IdtyStatus::Validated {
+                    return Err(Error::<T>::IdtyNotValidated.into());
+                }
+
+                for (right, subkey_opt) in idty_value.rights.drain(..) {
+                    let name = idty_value.name.clone();
+
+                    let old_key_opt = if let Some(ref subkey) = subkey_opt {
+                        Some(subkey.clone())
+                    } else if right.allow_owner_key() {
+                        Some(idty_value.owner_key.clone())
+                    } else {
+                        None
+                    };
+
+                    Self::deposit_event(Event::<T>::IdtyLostRight(name, right));
+                    if old_key_opt.is_some() {
+                        T::OnRightKeyChange::on_right_key_change(
+                            idty_index,
+                            right,
+                            old_key_opt,
+                            None,
+                        );
+                    }
+                }
+
+                let block_number = frame_system::pallet::Pallet::<T>::block_number();
+                let removable_on = block_number + T::MaxNoRightPeriod::get();
+                idty_value.removable_on = removable_on;
+                <IdentitiesRemovableOn<T>>::append(
+                    removable_on,
+                    (idty_index, IdtyStatus::Validated),
+                );
+                <Identities<T>>::insert(idty_index, idty_value);
+
+                Ok(().into())
+            } else {
+                Err(Error::<T>::IdtyNotFound.into())
+            }
+        }
+        #[pallet::weight(0)]
         pub fn set_right_subkey(
             origin: OriginFor<T>,
             idty_index: T::IdtyIndex,