From 5c2f5077f5885db6f100a76ee9b17b72381526ef Mon Sep 17 00:00:00 2001
From: Kevin Heifner <heifnerk@objectcomputing.com>
Date: Tue, 8 Aug 2023 10:55:37 -0500
Subject: [PATCH] GH-1461 Do not add or expect `=` at end of base64 encoded
 strings.

---
 libraries/libfc/src/variant.cpp               | 7 ++++---
 libraries/libfc/test/variant/test_variant.cpp | 2 +-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/libraries/libfc/src/variant.cpp b/libraries/libfc/src/variant.cpp
index da1e648da0..56705ad18e 100644
--- a/libraries/libfc/src/variant.cpp
+++ b/libraries/libfc/src/variant.cpp
@@ -490,7 +490,7 @@ std::string variant::as_string()const
           return *reinterpret_cast<const bool*>(this) ? "true" : "false";
       case blob_type:
           if( get_blob().data.size() )
-             return base64_encode( get_blob().data.data(), get_blob().data.size() ) + "=";
+             return base64_encode( get_blob().data.data(), get_blob().data.size() );
           return std::string();
       case null_type:
           return std::string();
@@ -533,10 +533,11 @@ blob variant::as_blob()const
       {
          const std::string& str = get_string();
          if( str.size() == 0 ) return blob();
-         if( str.back() == '=' )
-         {
+         try {
             std::string b64 = base64_decode( get_string() );
             return blob( { std::vector<char>( b64.begin(), b64.end() ) } );
+         } catch(const std::exception&) {
+            // unable to decode, just return the raw chars
          }
          return blob( { std::vector<char>( str.begin(), str.end() ) } );
       }
diff --git a/libraries/libfc/test/variant/test_variant.cpp b/libraries/libfc/test/variant/test_variant.cpp
index 827b420ed0..cfef4e50be 100644
--- a/libraries/libfc/test/variant/test_variant.cpp
+++ b/libraries/libfc/test/variant/test_variant.cpp
@@ -88,7 +88,7 @@ BOOST_AUTO_TEST_CASE(variant_format_string_limited)
       const string target_result = format_prefix + a_short_list + " " +
                                    "{" + "\"b\":\"" + b_short_list + "\",\"c\":\"" + c_short_list + "\"}" + " " +
                                    "[\"" + d_short_list + "\",\"" + e_short_list + "\"]" + " " +
-                                   base64_encode( a_blob.data.data(), a_blob.data.size() ) + "=" + " " +
+                                   base64_encode( a_blob.data.data(), a_blob.data.size() ) + " " +
                                    g_short_list;
 
       BOOST_CHECK_EQUAL( result, target_result);