From 9f94b126358258326f21ff9cbf823e64300a1a67 Mon Sep 17 00:00:00 2001
From: ohad serfaty <ohad@verizonemedia.com>
Date: Mon, 25 Nov 2019 08:50:22 +0200
Subject: Using vespa's internal base64 code

---
 fbench/CMakeLists.txt        |  1 +
 fbench/src/fbench/client.cpp | 55 ++++----------------------------------------
 2 files changed, 6 insertions(+), 50 deletions(-)

diff --git a/fbench/CMakeLists.txt b/fbench/CMakeLists.txt
index bc40e659b99..5cc56786227 100644
--- a/fbench/CMakeLists.txt
+++ b/fbench/CMakeLists.txt
@@ -3,6 +3,7 @@ vespa_define_module(
     DEPENDS
     fastos
     vespalib
+    staging_vespalib
 
     APPS
     src/fbench
diff --git a/fbench/src/fbench/client.cpp b/fbench/src/fbench/client.cpp
index 297cf61bdb3..0de6f676807 100644
--- a/fbench/src/fbench/client.cpp
+++ b/fbench/src/fbench/client.cpp
@@ -8,53 +8,9 @@
 #include <cassert>
 #include <cstring>
 #include <iostream>
+#include <vespa/vespalib/encoding/base64.h>
 
-static const std::string base64_chars =
-             "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-             "abcdefghijklmnopqrstuvwxyz"
-             "0123456789+/";
-
-
-static inline bool is_base64(unsigned char c) {
-  return (isalnum(c) || (c == '+') || (c == '/'));
-}
-
-std::string base64_decode(std::string const& encoded_string) {
-  int in_len = encoded_string.size();
-  int i = 0;
-  int j = 0;
-  int in_ = 0;
-  unsigned char char_array_4[4], char_array_3[3];
-  std::string ret;
-
-  while (in_len-- && ( encoded_string[in_] != '=') && is_base64(encoded_string[in_])) {
-    char_array_4[i++] = encoded_string[in_]; in_++;
-    if (i ==4) {
-      for (i = 0; i <4; i++)
-        char_array_4[i] = base64_chars.find(char_array_4[i]);
-
-      char_array_3[0] = ( char_array_4[0] << 2       ) + ((char_array_4[1] & 0x30) >> 4);
-      char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
-      char_array_3[2] = ((char_array_4[2] & 0x3) << 6) +   char_array_4[3];
-
-      for (i = 0; (i < 3); i++)
-        ret += char_array_3[i];
-      i = 0;
-    }
-  }
-
-  if (i) {
-    for (j = 0; j < i; j++)
-      char_array_4[j] = base64_chars.find(char_array_4[j]);
-
-    char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
-    char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
-
-    for (j = 0; (j < i - 1); j++) ret += char_array_3[j];
-  }
-
-  return ret;
-}
+using namespace vespalib;
 
 Client::Client(vespalib::CryptoEngine::SP engine, ClientArguments *args)
     : _args(args),
@@ -270,10 +226,9 @@ Client::run()
             int cLen = _args->_usePostMode ? urlSource.nextContent() : 0;
             auto content = urlSource.content();
             if (_args->_usePostMode && _args->_base64Decode) {
-                auto base64_content = std::string(urlSource.content(), cLen);
-                auto decoded = base64_decode(base64_content);
-                content = decoded.c_str();
-                cLen = decoded.size();
+                auto base64_decoded = Base64::decode(std::string(urlSource.content(), cLen));
+                content = base64_decoded.c_str();
+                cLen = base64_decoded.size();
             }
                         
             _reqTimer->Start();
-- 
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