File manager: support for zipping selected files.

chrome/utility/chrome_content_utility_client.cc

Index: chrome/utility/chrome_content_utility_client.cc
diff --git a/chrome/utility/chrome_content_utility_client.cc b/chrome/utility/chrome_content_utility_client.cc
index 8e6a69ddb2146f028fcf53ba313e5d47b1397d4d..e372ebf76575309c91f351261406ffaa0eb4356f 100644
--- a/chrome/utility/chrome_content_utility_client.cc
+++ b/chrome/utility/chrome_content_utility_client.cc
@@ -7,6 +7,7 @@
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/command_line.h"
+#include "base/file_util.h"
 #include "base/json/json_reader.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop_proxy.h"
@@ -21,6 +22,7 @@
 #include "chrome/common/extensions/unpacker.h"
 #include "chrome/common/extensions/update_manifest.h"
 #include "chrome/common/web_resource/web_resource_unpacker.h"
+#include "chrome/common/zip.h"
 #include "chrome/utility/profile_import_handler.h"
 #include "content/public/utility/utility_thread.h"
 #include "printing/backend/print_backend.h"
@@ -32,7 +34,6 @@
 #include "webkit/glue/image_decoder.h"
 
 #if defined(OS_WIN)
-#include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/win/iat_patch_function.h"
 #include "base/win/scoped_handle.h"
@@ -88,6 +89,11 @@ bool ChromeContentUtilityClient::OnMessageReceived(
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_ParseJSON, OnParseJSON)
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_GetPrinterCapsAndDefaults,
                         OnGetPrinterCapsAndDefaults)
+
+#if defined(OS_CHROMEOS)
+    IPC_MESSAGE_HANDLER(ChromeUtilityMsg_CreateZipFile, OnCreateZipFile)
+#endif  // defined(OS_CHROMEOS)
+
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
@@ -186,6 +192,34 @@ void ChromeContentUtilityClient::OnDecodeImageBase64(
   OnDecodeImage(decoded_vector);
 }
 
+#if defined(OS_CHROMEOS)
+void ChromeContentUtilityClient::OnCreateZipFile(
+    const FilePath& src_dir,
+    const std::vector<FilePath>& src_relative_paths,
+    const base::FileDescriptor& dest_fd) {
+  bool succeeded = true;
+
+  // Check sanity of source relative paths. Reject if path is absolute or
+  // contains any attempt to reference a parent directory ("../" tricks).
+  for (std::vector<FilePath>::const_iterator iter = src_relative_paths.begin();
+      iter != src_relative_paths.end(); ++iter) {
+    if (iter->IsAbsolute() || iter->ReferencesParent()) {
+      succeeded = false;
+      break;
+    }
+  }
+
+  if (succeeded)
+    succeeded = zip::ZipFiles(src_dir, src_relative_paths, dest_fd.fd);
+
+  if (succeeded)
+    Send(new ChromeUtilityHostMsg_CreateZipFile_Succeeded());
+  else
+    Send(new ChromeUtilityHostMsg_CreateZipFile_Failed());
+  content::UtilityThread::Get()->ReleaseProcessIfNeeded();
+}
+#endif  // defined(OS_CHROMEOS)
+
 void ChromeContentUtilityClient::OnRenderPDFPagesToMetafile(
     base::PlatformFile pdf_file,
     const FilePath& metafile_path,