Authors: Aric Stewart <aric@codeweavers.com>, Mike McCormack <mike@codeweavers.com>

dlls/msi/action.c

@@ -3134,7 +3134,7 @@ static void resolve_keypath(MSIHANDLE hPackage, MSIPACKAGE* package, INT
  * actually done in the PublishComponents and PublishFeatures
  * step, and not here.  It appears like the keypath and all that is
  * resolved in this step, however actually written in the Publish steps.
- * But we will leave it here for now 
+ * But we will leave it here for now because it is unclear
  */
 static UINT ACTION_ProcessComponents(MSIHANDLE hPackage)
 {
@@ -3183,9 +3183,36 @@ static UINT ACTION_ProcessComponents(MSIHANDLE hPackage)
     if (rc != ERROR_SUCCESS)
         goto end;
 
-    /* I have no idea what goes in here */
+    /* here the guids are base 85 encoded */
     for (i = 0; i < package->loaded_features; i++)
-        RegSetValueExW(hkey3,package->features[i].Feature,0,REG_SZ,NULL,0);
+    {
+        LPWSTR data = NULL;
+        GUID clsid;
+        int j;
+        INT size;
+
+        size = package->features[i].ComponentCount*21*sizeof(WCHAR);
+        data = HeapAlloc(GetProcessHeap(), 0, size);
+
+        data[0] = 0;
+        for (j = 0; j < package->features[i].ComponentCount; j++)
+        {
+            WCHAR buf[21];
+            TRACE("From %s\n",debugstr_w(package->components
+                            [package->features[i].Components[j]].ComponentId));
+            CLSIDFromString(package->components
+                            [package->features[i].Components[j]].ComponentId,
+                            &clsid);
+            encode_base85_guid(&clsid,buf);
+            TRACE("to %s\n",debugstr_w(buf));
+            strcatW(data,buf);
+        }
+
+        size = strlenW(data)*sizeof(WCHAR);
+        RegSetValueExW(hkey3,package->features[i].Feature,0,REG_SZ,
+                       (LPSTR)data,size);
+        HeapFree(GetProcessHeap(),0,data);
+    }
 
     RegCloseKey(hkey3);
     RegCloseKey(hkey2);

dlls/msi/msi.c

@@ -145,6 +145,83 @@ BOOL squash_guid(LPCWSTR in, LPWSTR out)
     return TRUE;
 }
 
+/* tables for encoding and decoding base85 */
+static const unsigned char table_dec85[0x80] = {
+0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
+0xff,0x00,0xff,0xff,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0xff,
+0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,0x14,0x15,0xff,0xff,0xff,0x16,0xff,0x17,
+0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,
+0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,0x30,0x31,0x32,0x33,0xff,0x34,0x35,0x36,
+0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,0x40,0x41,0x42,0x43,0x44,0x45,0x46,
+0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,0x50,0x51,0x52,0xff,0x53,0x54,0xff,
+};
+
+static const char table_enc85[] =
+"!$%&'()*+,-.0123456789=?@ABCDEFGHIJKLMNO"
+"PQRSTUVWXYZ[]^_`abcdefghijklmnopqrstuvwx"
+"yz{}~";
+
+/*
+ *  Converts a base85 encoded guid into a GUID pointer
+ *  Base85 encoded GUIDs should be 20 characters long.
+ *
+ *  returns TRUE if successful, FALSE if not
+ */
+BOOL decode_base85_guid( LPCWSTR str, GUID *guid )
+{
+    DWORD i, val = 0, base = 1, *p;
+
+    p = (DWORD*) guid;
+    for( i=0; i<20; i++ )
+    {
+        if( (i%5) == 0 )
+        {
+            val = 0;
+            base = 1;
+        }
+        val += table_dec85[str[i]] * base;
+        if( str[i] >= 0x80 )
+            return FALSE;
+        if( table_dec85[str[i]] == 0xff )
+            return FALSE;
+        if( (i%5) == 4 )
+            p[i/5] = val;
+        base *= 85;
+    }
+    return TRUE;
+}
+
+/*
+ *  Encodes a base85 guid given a GUID pointer
+ *  Caller should provide a 21 character buffer for the encoded string.
+ *
+ *  returns TRUE if successful, FALSE if not
+ */
+BOOL encode_base85_guid( GUID *guid, LPWSTR str )
+{
+    unsigned int x, *p, i;
+
+    p = (unsigned int*) guid;
+    for( i=0; i<4; i++ )
+    {
+        x = p[i];
+        *str++ = table_enc85[x%85];
+        x = x/85;
+        *str++ = table_enc85[x%85];
+        x = x/85;
+        *str++ = table_enc85[x%85];
+        x = x/85;
+        *str++ = table_enc85[x%85];
+        x = x/85;
+        *str++ = table_enc85[x%85];
+    }
+    *str = 0;
+    
+    return TRUE;
+}
+
+
 VOID MSI_CloseDatabase( VOID *arg )
 {
     MSIDATABASE *db = (MSIDATABASE *) arg;

dlls/msi/msipriv.h

@@ -245,6 +245,8 @@ extern void enum_stream_names( IStorage *stg );
 
 BOOL unsquash_guid(LPCWSTR in, LPWSTR out);
 BOOL squash_guid(LPCWSTR in, LPWSTR out);
+BOOL encode_base85_guid(GUID *,LPWSTR);
+BOOL decode_base85_guid(LPCWSTR,GUID*);
 
 /* UI globals */
 extern INSTALLUILEVEL gUILevel;