From 3ef61c73a97b31000a21e323e04ad5397e517c4c Mon Sep 17 00:00:00 2001
From: Dan Sinclair <dsinclair@chromium.org>
Date: Wed, 6 Sep 2017 09:37:59 -0400
Subject: GUID cleanup

This CL removes fx_guid and inlines into CXFA_FM2JSContext as needed.

Change-Id: I08a1f03fd4be46730eee24ab73b8b5c0daf9cd7d
Reviewed-on: https://pdfium-review.googlesource.com/13094
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
---
 xfa/fxfa/fm2js/cxfa_fm2jscontext.cpp | 25 +++++++++++++++++++------
 1 file changed, 19 insertions(+), 6 deletions(-)

(limited to 'xfa/fxfa/fm2js')

diff --git a/xfa/fxfa/fm2js/cxfa_fm2jscontext.cpp b/xfa/fxfa/fm2js/cxfa_fm2jscontext.cpp
index 6c70a3db1a..f49d98ab61 100644
--- a/xfa/fxfa/fm2js/cxfa_fm2jscontext.cpp
+++ b/xfa/fxfa/fm2js/cxfa_fm2jscontext.cpp
@@ -14,7 +14,7 @@
 #include "core/fxcrt/cfx_decimal.h"
 #include "core/fxcrt/cfx_widetextbuf.h"
 #include "core/fxcrt/fx_extension.h"
-#include "core/fxcrt/fx_guid.h"
+#include "core/fxcrt/fx_random.h"
 #include "fxjs/cfxjse_arguments.h"
 #include "fxjs/cfxjse_class.h"
 #include "fxjs/cfxjse_value.h"
@@ -514,6 +514,23 @@ bool IsPartOfNumberW(wchar_t ch) {
   return std::iswdigit(ch) || ch == L'-' || ch == L'.';
 }
 
+CFX_ByteString GUIDString(bool bSeparator) {
+  uint8_t data[16];
+  FX_Random_GenerateMT(reinterpret_cast<uint32_t*>(data), 4);
+  data[6] = (data[6] & 0x0F) | 0x40;
+
+  CFX_ByteString bsStr;
+  char* pBuf = bsStr.GetBuffer(40);
+  for (int32_t i = 0; i < 16; ++i, pBuf += 2) {
+    if (bSeparator && (i == 4 || i == 6 || i == 8 || i == 10))
+      *pBuf++ = L'-';
+
+    FXSYS_IntToTwoHexChars(data[i], pBuf);
+  }
+  bsStr.ReleaseBuffer(bSeparator ? 36 : 32);
+  return bsStr;
+}
+
 }  // namespace
 
 // static
@@ -4324,11 +4341,7 @@ void CXFA_FM2JSContext::Uuid(CFXJSE_Value* pThis,
     std::unique_ptr<CFXJSE_Value> argOne = GetSimpleValue(pThis, args, 0);
     iNum = static_cast<int32_t>(ValueToFloat(pThis, argOne.get()));
   }
-  FX_GUID guid;
-  FX_GUID_CreateV4(&guid);
-
-  CFX_ByteString bsUId = FX_GUID_ToString(&guid, !!iNum);
-  args.GetReturnValue()->SetString(bsUId.AsStringC());
+  args.GetReturnValue()->SetString(GUIDString(!!iNum).AsStringC());
 }
 
 // static
-- 
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