Add blind ID bindings (#15)

Co-authored-by: SessionHero01 <[email protected]>

Author: SessionHero01

library/src/main/cpp/blinded_key.cpp

@@ -107,4 +107,33 @@ Java_network_loki_messenger_libsession_1util_util_BlindKeyAPI_sessionIdMatchesBl
     }, [](const char *) -> jboolean {
         return false;
     });
+}
+
+extern "C"
+JNIEXPORT jobject JNICALL
+Java_network_loki_messenger_libsession_1util_util_BlindKeyAPI_blind15Ids(JNIEnv *env, jobject thiz,
+                                                                         jstring session_id,
+                                                                         jstring server_pub_key) {
+    return jni_utils::run_catching_cxx_exception_or_throws<jobject>(env, [=]() -> jobject {
+        return jni_utils::jstring_list_from_collection(
+                env,
+                session::blind15_id(
+                        jni_utils::JavaStringRef(env, session_id).view(),
+                        jni_utils::JavaStringRef(env, server_pub_key).view()
+                )
+        );
+    });
+}
+
+extern "C"
+JNIEXPORT jstring JNICALL
+Java_network_loki_messenger_libsession_1util_util_BlindKeyAPI_blind25Id(JNIEnv *env, jobject thiz,
+                                                                        jstring session_id,
+                                                                        jstring server_pub_key) {
+    return jni_utils::run_catching_cxx_exception_or_throws<jstring>(env, [=]() -> jstring {
+        return util::jstringFromOptional(env, session::blind25_id(
+                jni_utils::JavaStringRef(env, session_id).view(),
+                jni_utils::JavaStringRef(env, server_pub_key).view()
+        ));
+    });
 }

library/src/main/java/network/loki/messenger/libsession_util/util/BlindKeyAPI.kt

@@ -44,6 +44,16 @@ object BlindKeyAPI : LibSessionUtilCApi() {
         message: ByteArray,
     ): ByteArray
 
+    external fun blind15Ids(
+        sessionId: String,
+        serverPubKey: String,
+    ): List<String>
+
+    external fun blind25Id(
+        sessionId: String,
+        serverPubKey: String,
+    ): String
+
     /**
      * Takes in a standard sessionId and returns a flag indicating whether it matches the given
      * blindedId for a given serverPubKey