2 files changed, 183 insertions, 0 deletions
diff --git a/webkit/chromeos/fileapi/cros_mount_point_provider.cc b/webkit/chromeos/fileapi/cros_mount_point_provider.cc
new file mode 100644
index 0000000..1579c36
--- /dev/null
+++ b/webkit/chromeos/fileapi/cros_mount_point_provider.cc
@@ -0,0 +1,124 @@
+  // Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "webkit/chromeos/fileapi/cros_mount_point_provider.h"
+
+#include "base/logging.h"
+#include "base/message_loop.h"
+#include "base/message_loop_proxy.h"
+#include "base/scoped_callback_factory.h"
+#include "base/scoped_ptr.h"
+#include "base/stringprintf.h"
+#include "base/utf_string_conversions.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebCString.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebFileSystem.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
+#include "webkit/fileapi/file_system_path_manager.h"
+#include "webkit/glue/webkit_glue.h"
+
+namespace chromeos {
+
+const char CrosMountPointProvider::kLocalName[] = "Local";
+const char CrosMountPointProvider::kLocalDirName[] = "/local/";
+
+typedef struct {
+  const char* local_root_path;
+  const char* web_root_path;
+} FixedExposedPaths;
+
+// Top level file system elements exposed in FileAPI in ChromeOS:
+FixedExposedPaths fixed_exposed_paths[] = {
+    {"/home/chronos/user/", "Downloads"},
+    {"/",                   "media"},
+    {"/",                   "tmp"},
+};
+
+CrosMountPointProvider::CrosMountPointProvider(
+    scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy)
+    : local_dir_name_(kLocalName),
+      special_storage_policy_(special_storage_policy) {
+
+  // TODO(zelidrag): There's got to be a better way to generate UUID.
+  srand(time(NULL));
+  std::string virtual_root;
+  virtual_root.append(base::StringPrintf("%hx%hx-%hx-%hx-%hx-%hx%hx%hx",
+      static_cast<unsigned short>(rand()), static_cast<unsigned short>(rand()),
+      static_cast<unsigned short>(rand()),
+      static_cast<unsigned short>(rand()),
+      static_cast<unsigned short>(rand()),
+      static_cast<unsigned short>(rand()), static_cast<unsigned short>(rand()),
+          static_cast<unsigned short>(rand())));
+
+  // Create virtual root node.
+  virtual_root_path_ = FilePath(virtual_root);
+  base_path_ = virtual_root_path_.Append(local_dir_name_);
+
+  for (size_t i = 0; i < arraysize(fixed_exposed_paths); i++) {
+    mount_point_map_.insert(std::pair<std::string, std::string>(
+        std::string(fixed_exposed_paths[i].web_root_path),
+        std::string(fixed_exposed_paths[i].local_root_path)));
+  }
+}
+
+CrosMountPointProvider::~CrosMountPointProvider() {
+}
+
+// TODO(zelidrag) share with SandboxMountPointProvider impl.
+std::string GetOriginIdentifierFromURL(
+    const GURL& url) {
+  WebKit::WebSecurityOrigin web_security_origin =
+      WebKit::WebSecurityOrigin::createFromString(UTF8ToUTF16(url.spec()));
+  return web_security_origin.databaseIdentifier().utf8();
+}
+
+void CrosMountPointProvider::GetFileSystemRootPath(
+    const GURL& origin_url,
+    fileapi::FileSystemType type,
+    bool create,
+    fileapi::FileSystemPathManager::GetRootPathCallback* callback_ptr) {
+  DCHECK(type == fileapi::kFileSystemTypeLocal);
+
+  std::string name(GetOriginIdentifierFromURL(origin_url));
+  name += ':';
+  name += CrosMountPointProvider::kLocalName;
+
+  FilePath root_path = FilePath(CrosMountPointProvider::kLocalDirName);
+  callback_ptr->Run(!root_path.empty(), root_path, name);
+}
+
+// Like GetFileSystemRootPath, but synchronous, and can be called only while
+// running on the file thread.
+FilePath CrosMountPointProvider::GetFileSystemRootPathOnFileThread(
+    const GURL& origin_url,
+    fileapi::FileSystemType type,
+    const FilePath& virtual_path,
+    bool create) {
+  DCHECK(type == fileapi::kFileSystemTypeLocal);
+
+  std::vector<FilePath::StringType> components;
+  virtual_path.GetComponents(&components);
+  if (components.size() < 1) {
+    return FilePath();
+  }
+
+  // Check if this root directory is exposed by this provider.
+  MountPointMap::iterator iter = mount_point_map_.find(components[0]);
+  if (iter == mount_point_map_.end()) {
+    return FilePath();
+  }
+
+  return FilePath(iter->second);
+}
+
+// TODO(zelidrag): Share this code with SandboxMountPointProvider impl.
+bool CrosMountPointProvider::IsRestrictedFileName(const FilePath& path) const {
+  return false;
+}
+
+bool CrosMountPointProvider::IsAccessAllowed(const GURL& origin_url) {
+  return special_storage_policy_->IsLocalFileSystemAccessAllowed(origin_url);
+}
+
+}  // namespace chromeos
+
diff --git a/webkit/chromeos/fileapi/cros_mount_point_provider.h b/webkit/chromeos/fileapi/cros_mount_point_provider.h
new file mode 100644
index 0000000..5ac8f37
--- /dev/null
+++ b/webkit/chromeos/fileapi/cros_mount_point_provider.h
@@ -0,0 +1,59 @@
+  // Copyright (c) 2011 The Chromium 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 WEBKIT_CHROMEOS_FILEAPI_CROS_MOUNT_POINT_PROVIDER_H_
+#define WEBKIT_CHROMEOS_FILEAPI_CROS_MOUNT_POINT_PROVIDER_H_
+
+#include <map>
+#include <set>
+#include <string>
+
+#include "webkit/fileapi/file_system_mount_point_provider.h"
+#include "webkit/quota/special_storage_policy.h"
+
+namespace chromeos {
+
+// An interface to provide local filesystem paths.
+class CrosMountPointProvider
+    : public fileapi::FileSystemMountPointProvider {
+ public:
+  CrosMountPointProvider(
+      scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy);
+  virtual ~CrosMountPointProvider();
+
+  // fileapi::FileSystemMountPointProvider overrides.
+  virtual bool IsAccessAllowed(const GURL& origin_url) OVERRIDE;
+
+  virtual void GetFileSystemRootPath(
+      const GURL& origin_url,
+      fileapi::FileSystemType type,
+      bool create,
+      fileapi::FileSystemPathManager::GetRootPathCallback* callback) OVERRIDE;
+
+  virtual FilePath GetFileSystemRootPathOnFileThread(
+      const GURL& origin_url,
+      fileapi::FileSystemType type,
+      const FilePath& virtual_path,
+      bool create);
+
+  virtual bool IsRestrictedFileName(const FilePath& filename) const OVERRIDE;
+
+ private:
+  class GetFileSystemRootPathTask;
+  typedef std::map<std::string, std::string> MountPointMap;
+
+  static const char kLocalDirName[];
+  static const char kLocalName[];
+  FilePath virtual_root_path_;
+  FilePath base_path_;
+  std::string local_dir_name_;
+  MountPointMap mount_point_map_;
+  scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy_;
+
+  DISALLOW_COPY_AND_ASSIGN(CrosMountPointProvider);
+};
+
+}  // namespace chromeos
+
+#endif  // WEBKIT_CHROMEOS_FILEAPI_CROS_MOUNT_POINT_PROVIDER_H_