[3party] Added all zlib files and zip support compilation

1 files changed, 36 insertions, 0 deletions

diff --git a/coding/zip_reader.cpp b/coding/zip_reader.cpp
new file mode 100644
index 0000000000..b82e87b854
--- /dev/null
+++ b/coding/zip_reader.cpp
@@ -0,0 +1,36 @@
+#include "zip_reader.hpp"
+
+#include "../base/scope_guard.hpp"
+#include "../base/logging.hpp"
+
+#include "../std/bind.hpp"
+
+#include "../3party/zlib/contrib/minizip/unzip.h"
+
+ZipFileReader::ZipFileReader(string const & container, string const & file)
+  : base_type(container)
+{
+  unzFile zip = unzOpen(container.c_str());
+  if (!zip)
+    MYTHROW(OpenZipException, ("Can't get zip file handle", container));
+
+  MY_SCOPE_GUARD(zipGuard, bind(&unzClose, zip));
+
+  if (UNZ_OK != unzLocateFile(zip, file.c_str(), 1))
+    MYTHROW(LocateZipException, ("Can't locate file inside zip", file));
+
+  unz_file_pos filePos;
+  if (UNZ_OK != unzGetFilePos(zip, &filePos))
+    MYTHROW(LocateZipException, ("Can't locate file offset inside zip", file));
+
+  unz_file_info fileInfo;
+  if (UNZ_OK != unzGetCurrentFileInfo(zip, &fileInfo, NULL, 0, NULL, 0, NULL, 0))
+    MYTHROW(LocateZipException, ("Can't get uncompressed file size inside zip", file));
+
+  if (fileInfo.compressed_size != fileInfo.uncompressed_size)
+    MYTHROW(InvalidZipException, ("File should be uncompressed inside zip", file));
+
+  LOG(LDEBUG, (file, "offset:", filePos.pos_in_zip_directory, "size:", fileInfo.uncompressed_size));
+
+  SetOffsetAndSize(filePos.pos_in_zip_directory, fileInfo.uncompressed_size);
+}