Normalize base64 input to accept both default and URL-safe encoding

Author: Rexagon

Cargo.lock

@@ -35,6 +35,10 @@ export const zeroPad = (num: number, places: number) => {
   return Array(+(zero > 0 && zero)).join('0') + num;
 };
 
+export const normalizeBase64 = (base64str: string) => {
+  return base64str.replace(/_/g, '/').replace(/-/g, '+');
+};
+
 const BLOB_PART = /\/blob\//;
 const EVERSCAN_CONTRACT_PATH = /^\/contracts\/([0-9a-fA-F]{64})\/?$/;
 export const rewriteAbiUrl = (address: URL) => {

bun.lockb

@@ -2,7 +2,7 @@
 import { ref, shallowRef, watch, watchEffect } from 'vue';
 import * as core from '@core';
 
-import { convertError } from '../common';
+import { convertError, normalizeBase64 } from '../common';
 import { useTvmConnect } from '../providers/useTvmConnect';
 
 enum Tabs {
@@ -60,7 +60,7 @@ watchEffect(() => {
 watch([bocInput, abiState, partial, selectedStructure], async ([bocInput, { abi }, partial, selectedStructure], _, onCleanup) => {
   if (activeTab.value === Tabs.BlockStructures) {
     try {
-      let r = JSON.parse(core.deserialize(bocInput, selectedStructure));
+      let r = JSON.parse(core.deserialize(normalizeBase64(bocInput), selectedStructure));
       bocState.value = {
         decoded: JSON.stringify(r, (key, value) =>
           typeof value === 'bigint'

src/common/index.ts

@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import { ref } from 'vue';
 import * as core from '@core';
+import { normalizeBase64 } from "../common"
 
 const input = ref('');
 const state = ref({ decoded: undefined, error: undefined });
@@ -9,7 +10,7 @@ const decode = (e: Event) => {
   const boc = (e.target as HTMLInputElement).value;
   try {
     state.value = {
-      decoded: core.visualize(boc),
+      decoded: core.visualize(normalizeBase64(boc)),
       error: undefined
     };
   } catch (e: any) {