Adding gzip generation from zlib_deflate.

2 files changed, 8 insertions, 5 deletions

diff --git a/lib/Handle.cc b/lib/Handle.cc
index e88663a..39bc981 100644
--- a/lib/Handle.cc
+++ b/lib/Handle.cc
@@ -927,7 +927,7 @@ int Handle::zlib_inflate(Handle * in, Handle * out) throw (GeneralException) {
     return total_out;
 }
 
-int Handle::zlib_deflate(Handle * in, Handle * out, int level, bool raw) throw (GeneralException) {
+int Handle::zlib_deflate(Handle * in, Handle * out, int level, bool raw, bool gzip) throw (GeneralException) {
     int ret, flush;
     z_stream s;
     unsigned char b_in[CHUNK];
@@ -944,7 +944,7 @@ int Handle::zlib_deflate(Handle * in, Handle * out, int level, bool raw) throw (
 
     have = total_out = 0;
 
-    ret = deflateInit2(&s, level, Z_DEFLATED, raw ? -15 : 15, 8, Z_DEFAULT_STRATEGY);
+    ret = deflateInit2(&s, level, Z_DEFLATED, gzip ? 31 : (raw ? -15 : 15), 8, Z_DEFAULT_STRATEGY);
     if (ret != Z_OK) {
         throw GeneralException("zlib: deflateInit() failed: " + String(ret));
     }
diff --git a/lib/LuaHandle.cc b/lib/LuaHandle.cc
index 5b0d85e..08f4911 100644
--- a/lib/LuaHandle.cc
+++ b/lib/LuaHandle.cc
@@ -831,8 +831,9 @@ int sLuaHandle::zlib_deflate(lua_State * __L) {
     int r;
     int level = Z_DEFAULT_COMPRESSION;
     bool raw = false;
+    bool gzip = false;
 
-    if ((n < 2) || (n > 4) || ((n >= 3) && !L->isnumber(3)) || ((n == 4) && !L->isboolean(4))) {
+    if ((n < 2) || (n > 5) || ((n >= 3) && !L->isnumber(3)) || ((n >= 4) && !L->isboolean(4)) || ((n >= 5) && !L->isboolean(5))) {
         L->error("Incorrect arguments to method `Handle::zlib_deflate'");
     }
 
@@ -840,10 +841,12 @@ int sLuaHandle::zlib_deflate(lua_State * __L) {
     d = L->recast<Handle>(2);
     if (n >= 3)
         level = L->tonumber(3);
-    if (n == 4)
+    if (n >= 4)
         raw = L->toboolean(4);
+    if (n >= 5)
+        gzip = L->toboolean(5);
 
-    r = Handle::zlib_deflate(s, d, level, raw);
+    r = Handle::zlib_deflate(s, d, level, raw, gzip);
 
     L->push((lua_Number) r);