Add support to reconfigure derivation_origin for VC issuer

This PR allows to reconfigure the expected frontend hostname as well as
the derivation origin. This will be used in the future to simplify the
e2e tests.

Since this is most useful in e2e tests if the configuration is _not_
guarded by the controller, the guard is removed for the `configure`
method too for consistency.

demos/vc_issuer/app/generated/vc_issuer_idl.js

@@ -107,6 +107,7 @@ export const idlFactory = ({ IDL }) => {
         ],
         [],
       ),
+    'set_derivation_origin' : IDL.Func([IDL.Text, IDL.Text], [], []),
     'vc_consent_message' : IDL.Func(
         [Icrc21VcConsentMessageRequest],
         [IDL.Variant({ 'Ok' : Icrc21ConsentInfo, 'Err' : Icrc21Error })],

demos/vc_issuer/app/generated/vc_issuer_types.d.ts

@@ -87,6 +87,7 @@ export interface _SERVICE {
     { 'Ok' : PreparedCredentialData } |
       { 'Err' : IssueCredentialError }
   >,
+  'set_derivation_origin' : ActorMethod<[string, string], undefined>,
   'vc_consent_message' : ActorMethod<
     [Icrc21VcConsentMessageRequest],
     { 'Ok' : Icrc21ConsentInfo } |

demos/vc_issuer/src/main.rs

@@ -77,7 +77,7 @@ fn config_memory() -> Memory {
 #[cfg(target_arch = "wasm32")]
 use ic_cdk::println;
 
-#[derive(CandidType, Deserialize)]
+#[derive(CandidType, Deserialize, Clone)]
 struct IssuerConfig {
     /// Root of trust for checking canister signatures.
     ic_root_key_raw: Vec<u8>,
@@ -143,7 +143,7 @@ struct IssuerInit {
 #[candid_method(init)]
 fn init(init_arg: Option<IssuerInit>) {
     if let Some(init) = init_arg {
-        apply_config(init);
+        apply_config(IssuerConfig::from(init));
     };
 
     init_assets();
@@ -156,17 +156,21 @@ fn post_upgrade(init_arg: Option<IssuerInit>) {
 
 #[update]
 #[candid_method]
-fn configure(config: IssuerInit) {
-    if ic_cdk::api::is_controller(&caller()) {
-        apply_config(config);
-    } else {
-        panic!("Only a controller can call configure().");
-    }
+fn configure(init: IssuerInit) {
+    apply_config(IssuerConfig::from(init));
+}
+
+#[update]
+fn set_derivation_origin(frontend_hostname: String, derivation_origin: String) {
+    let mut config: IssuerConfig = CONFIG.with_borrow(|config| config.get().clone());
+    config.derivation_origin = derivation_origin;
+    config.frontend_hostname = frontend_hostname;
+    apply_config(config);
 }
 
-fn apply_config(init: IssuerInit) {
+fn apply_config(config: IssuerConfig) {
     CONFIG
-        .with_borrow_mut(|config_cell| config_cell.set(IssuerConfig::from(init)))
+        .with_borrow_mut(|config_cell| config_cell.set(config))
         .expect("failed to apply issuer config");
 }
 

demos/vc_issuer/vc_demo_issuer.did

@@ -120,6 +120,7 @@ service: (opt IssuerConfig) -> {
 
     /// Configure the issuer (e.g. set the root key), used for deployment/testing.
     configure: (IssuerConfig) -> ();
+    set_derivation_origin: (frontend_hostname: text, derivation_origin: text) -> ();
 
     /// API for obtaining information about users, for testing only.
     /// In a real-world issuer the data acquisition functionality should be more elaborate and authenticated.

src/frontend/generated/vc_issuer_idl.js

@@ -107,6 +107,7 @@ export const idlFactory = ({ IDL }) => {
         ],
         [],
       ),
+    'set_derivation_origin' : IDL.Func([IDL.Text, IDL.Text], [], []),
     'vc_consent_message' : IDL.Func(
         [Icrc21VcConsentMessageRequest],
         [IDL.Variant({ 'Ok' : Icrc21ConsentInfo, 'Err' : Icrc21Error })],

src/vc-api/src/generated/vc_issuer_types.ts

@@ -55,7 +55,7 @@ export interface IssuedCredentialData { 'vc_jws' : string }
 export interface IssuerConfig {
   'derivation_origin' : string,
   'idp_canister_ids' : Array<Principal>,
-  'ic_root_key_der' : Uint8Array | number[],
+  'ic_root_key_der' : [] | [Uint8Array | number[]],
   'frontend_hostname' : string,
 }
 export interface PrepareCredentialRequest {
@@ -87,6 +87,7 @@ export interface _SERVICE {
     { 'Ok' : PreparedCredentialData } |
       { 'Err' : IssueCredentialError }
   >,
+  'set_derivation_origin' : ActorMethod<[string, string], undefined>,
   'vc_consent_message' : ActorMethod<
     [Icrc21VcConsentMessageRequest],
     { 'Ok' : Icrc21ConsentInfo } |