Replace Libarchive with MiniZip.

ui/file_manager/zip_archiver/cpp/compressor_archive_libarchive.h

 // Copyright 2017 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPRESSOR_ARCHIVE_LIBARCHIVE_H_
 #define COMPRESSOR_ARCHIVE_LIBARCHIVE_H_
 
 #include <string>
 
-#include "archive.h"
+#include "third_party/zlib/contrib/minizip/unzip.h"
+#include "third_party/zlib/contrib/minizip/zip.h"
 
 #include "compressor_archive.h"
 #include "compressor_stream.h"
 
 // A namespace with constants used by CompressorArchiveLibarchive.
 namespace compressor_archive_constants {
-const int64_t kMaximumDataChunkSize = 512 * 1024;
-const int kFilePermission = 640;
-const int kDirectoryPermission = 760;
-}  // namespace compressor_archive_constants
+const char kCreateArchiveError[] = "Failed to create archive.";
+const char kAddtoArchiveError[] = "Failed to add entry to archive.";

[mtomasz, 2017/04/10 07:15:08]

nit: Addto -> AddTo ?

[takise, 2017/04/11 06:00:51]

Done.

+const char kCloseArchiveError[] = "Failed to close archive.";
+}
+
+// A name space with custom functions passed to minizip.
+namespace compressor_archive_functions {
+  uLong CustomArchiveWrite(void* opaque,
+                           void* /*stream*/,
+                           const void* buffer,
+                           uLong length);
+  long CustomArchiveTell(void* opaque, void* /*stream*/);
+  long CustomArchiveSeek(void* opaque,
+                         void* /*stream*/,
+                         uLong offset,
+                         int origin);
+
+} // compressor_archive_functions

[mtomasz, 2017/04/10 07:15:08]

nit: \s\s before //

[takise, 2017/04/11 06:00:51]

Done.

 
 class CompressorArchiveLibarchive : public CompressorArchive {

[mtomasz, 2017/04/10 07:15:08]

nit: Libarchive -> MiniZip?

  public:
   explicit CompressorArchiveLibarchive(CompressorStream* compressor_stream);
 
   virtual ~CompressorArchiveLibarchive();
 
   // Creates an archive object.
-  virtual void CreateArchive();
+  virtual bool CreateArchive();
 
   // Releases all resources obtained by libarchive.
-  virtual void CloseArchive(bool has_error);
+  virtual bool CloseArchive(bool has_error);
 
   // Adds an entry to the archive.
-  virtual void AddToArchive(const std::string& filename,
+  virtual bool AddToArchive(const std::string& filename,
                             int64_t file_size,
-                            time_t modification_time,
+                            int64_t modification_time,
                             bool is_directory);
 
-  // A getter function for archive_.
-  struct archive* archive() const { return archive_; }
+  // A getter function for zip_file_.
+  zipFile zip_file() const { return zip_file_; }
 
   // A getter function for compressor_stream.
   CompressorStream* compressor_stream() const { return compressor_stream_; }
 
+  // Custom functions need to access private variables of
+  // CompressorArchiveLibarchive frequently.
+  friend uLong compressor_archive_functions::CustomArchiveWrite(
+      void* opaque, void* /*stream*/, const void* buffer, uLong length);
+  friend long compressor_archive_functions::CustomArchiveTell(
+      void* opaque, void* /*stream*/);
+  friend long compressor_archive_functions::CustomArchiveSeek(
+      void* opaque, void* /*stream*/, uLong offset, int origin);
+
  private:
   // An instance that takes care of all IO operations.
   CompressorStream* compressor_stream_;
 
-  // The libarchive correspondent archive object.
-  struct archive* archive_;
-
-  // The libarchive correspondent archive entry object that is currently
-  // processed.
-  struct archive_entry* entry;
+  // The minizip correspondent archive object.
+  zipFile zip_file_;
 
   // The buffer used to store the data read from JavaScript.
   char* destination_buffer_;
+
+  // The current offset of the zip archive file.
+  int64_t offset_;
+  // The size of the zip archive file.
+  int64_t length_;
 };
 
 #endif  // COMPRESSOR_ARCHIVE_LIBARCHIVE_H_