From 4477f5a169a84cc36ab2331e810a5d1ccaa048d4 Mon Sep 17 00:00:00 2001
From: "ssu%netscape.com" <ssu%netscape.com>
Date: Mon, 8 Oct 2001 21:24:19 +0000
Subject: [PATCH] fixing bug 103228 - Fix xpinstall engine so
 InstallTrigger.compareVersion() works.  r=syd, sr=dveditz.

---
 xpinstall/packager/common/share.t  | 19 +++++----
 xpinstall/src/makefile.win         |  1 +
 xpinstall/src/nsInstall.cpp        | 68 +++++++++++++++++++++++++++++-
 xpinstall/src/nsInstallTrigger.cpp |  3 +-
 xpinstall/src/nsJSFile.cpp         |  1 +
 5 files changed, 82 insertions(+), 10 deletions(-)

diff --git a/xpinstall/packager/common/share.t b/xpinstall/packager/common/share.t
index 53c34cc4879..17c687a13b2 100644
--- a/xpinstall/packager/common/share.t
+++ b/xpinstall/packager/common/share.t
@@ -27,26 +27,29 @@ function deleteThisFile(dirKey, file)
   var fFileToDelete;
 
   fFileToDelete = getFolder(dirKey, file);
-  logComment(file + " file: " + fFileToDelete);
-  if(File.exists(fFileToDelete))
+  logComment("File to delete: " + fFileToDelete);
+  if(File.isFile(fFileToDelete))
   {
-    fileDelete(fFileToDelete);
+    File.remove(fFileToDelete);
     return(true);
   }
   else
     return(false);
 }
 
-// this function deletes a folder (recursively) if it exists
-function deleteThisFolder(dirKey, folder)
+// this function deletes a folder if it exists
+function deleteThisFolder(dirKey, folder, recursiveDelete)
 {
   var fToDelete;
 
+  if(typeof recursiveDelete == "undefined")
+    recursiveDelete = true;
+
   fToDelete = getFolder(dirKey, folder);
-  logComment(folder + " folder: " + fToDelete);
-  if(File.exists(fToDelete))
+  logComment("folder to delete: " + fToDelete);
+  if(File.isDirectory(fToDelete))
   {
-    File.dirRemove(fToDelete, true);
+    File.dirRemove(fToDelete, recursiveDelete);
     return(true);
   }
   else
diff --git a/xpinstall/src/makefile.win b/xpinstall/src/makefile.win
index 9267e94e941..b9644581bd9 100644
--- a/xpinstall/src/makefile.win
+++ b/xpinstall/src/makefile.win
@@ -118,6 +118,7 @@ OBJS =                                          \
 
 WIN_LIBS=                                       \
        ole32.lib                                \
+       version.lib                              \
        $(NULL)
 
 include <$(DEPTH)\config\rules.mak>
diff --git a/xpinstall/src/nsInstall.cpp b/xpinstall/src/nsInstall.cpp
index 7ed80969483..8bbed3ad90f 100644
--- a/xpinstall/src/nsInstall.cpp
+++ b/xpinstall/src/nsInstall.cpp
@@ -22,6 +22,7 @@
  *     Daniel Veditz <dveditz@netscape.com>
  *     Douglas Turner <dougt@netscape.com>
  *     Pierre Phaneuf <pp@ludusdesign.com>
+ *     Sean Su <ssu@netscape.com>
  */
 
 
@@ -1813,10 +1814,75 @@ nsInstall::FileOpFileExists(nsInstallFolder& aTarget, PRBool* aReturn)
   return NS_OK;
 }
 
+#ifdef XP_WIN
+#include <winver.h>
+#endif
+
 PRInt32
 nsInstall::FileOpFileGetNativeVersion(nsInstallFolder& aTarget, nsString* aReturn)
 {
-  return NS_OK;
+  PRInt32           rv = NS_OK;
+
+#ifdef XP_WIN
+  PRBool            flagExists;
+  nsCOMPtr<nsIFile> localTarget(aTarget.GetFileSpec());
+  UINT              uLen;
+  UINT              dwLen;
+  DWORD             dwHandle;
+  LPVOID            lpData;
+  LPVOID            lpBuffer;
+  VS_FIXEDFILEINFO  *lpBuffer2;
+  DWORD             dwMajor   = 0;
+  DWORD             dwMinor   = 0;
+  DWORD             dwRelease = 0;
+  DWORD             dwBuild   = 0;
+  nsXPIDLCString    nativeTargetPath;
+  char              *nativeVersionString = nsnull;
+
+  if(localTarget == nsnull)
+    return(rv);
+
+  flagExists = PR_FALSE;
+  localTarget->Exists(&flagExists);
+  if(flagExists)
+  {
+    localTarget->GetPath(getter_Copies(nativeTargetPath));
+    uLen   = 0;
+    /* GetFileVersionInfoSize() requires a char *, but the api doesn't
+     * indicate that it will modify it */
+    dwLen  = GetFileVersionInfoSize((char *)nativeTargetPath.get(), &dwHandle);
+    lpData = (LPVOID)PR_Malloc(sizeof(long)*dwLen);
+    if(!lpData)
+      return(nsInstall::OUT_OF_MEMORY);
+
+    /* GetFileVersionInfo() requires a char *, but the api doesn't
+     * indicate that it will modify it */
+    if(GetFileVersionInfo((char *)nativeTargetPath.get(), dwHandle, dwLen, lpData) != 0)
+    {
+      if(VerQueryValue(lpData, "\\", &lpBuffer, &uLen) != 0)
+      {
+        lpBuffer2 = (VS_FIXEDFILEINFO *)lpBuffer;
+        dwMajor   = HIWORD(lpBuffer2->dwFileVersionMS);
+        dwMinor   = LOWORD(lpBuffer2->dwFileVersionMS);
+        dwRelease = HIWORD(lpBuffer2->dwFileVersionLS);
+        dwBuild   = LOWORD(lpBuffer2->dwFileVersionLS);
+      }
+    }
+
+    nativeVersionString = PR_smprintf("%d.%d.%d.%d", dwMajor, dwMinor, dwRelease, dwBuild);
+    if(!nativeVersionString)
+      rv = nsInstall::OUT_OF_MEMORY;
+    else
+    {
+      aReturn->Assign(NS_ConvertASCIItoUCS2(nativeVersionString));
+      PR_smprintf_free(nativeVersionString);
+    }
+
+    PR_FREEIF(lpData);
+  }
+#endif
+
+  return(rv);
 }
 
 PRInt32
diff --git a/xpinstall/src/nsInstallTrigger.cpp b/xpinstall/src/nsInstallTrigger.cpp
index 7cbc681a9b0..5e7855e7553 100644
--- a/xpinstall/src/nsInstallTrigger.cpp
+++ b/xpinstall/src/nsInstallTrigger.cpp
@@ -189,7 +189,8 @@ nsInstallTrigger::UpdateEnabled(PRBool* aReturn)
     }
     else
     {
-        *aReturn = PR_FALSE;  /* no prefs manager.  set to false */
+        // no prefs manager: we're in the install wizard and always work
+        *aReturn = PR_TRUE;
     }
 
     return NS_OK;
diff --git a/xpinstall/src/nsJSFile.cpp b/xpinstall/src/nsJSFile.cpp
index 3c73f7090ef..68bbb71c107 100644
--- a/xpinstall/src/nsJSFile.cpp
+++ b/xpinstall/src/nsJSFile.cpp
@@ -1483,6 +1483,7 @@ static JSFunctionSpec FileOpMethods[] =
   {"exists",                    InstallFileOpFileExists,               1},
   {"execute",                   InstallFileOpFileExecute,              2},
   {"nativeVersion",             InstallFileOpFileGetNativeVersion,     1},
+  {"windowsVersion",            InstallFileOpFileGetNativeVersion,     1},
   {"diskSpaceAvailable",        InstallFileOpFileGetDiskSpaceAvailable,1},
   {"modDate",                   InstallFileOpFileGetModDate,           1},
   {"size",                      InstallFileOpFileGetSize,              1},