First crack at FileSystemURLRequestJob for handling filesystem: URLs.

Disabled behind a switch, "--enable-filesystem-url-scheme".

Review URL: http://codereview.chromium.org/6262015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@74082 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 81 insertions, 0 deletions

diff --git a/webkit/fileapi/file_system_url_request_job.h b/webkit/fileapi/file_system_url_request_job.h
new file mode 100644
index 0000000..c49d873
--- /dev/null
+++ b/webkit/fileapi/file_system_url_request_job.h
@@ -0,0 +1,81 @@
+// Copyright (c) 2006-2011 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_FILEAPI_FILE_SYSTEM_URL_REQUEST_JOB_H_
+#define WEBKIT_FILEAPI_FILE_SYSTEM_URL_REQUEST_JOB_H_
+#pragma once
+
+#include <string>
+
+#include "base/file_path.h"
+#include "base/message_loop_proxy.h"
+#include "base/platform_file.h"
+#include "base/scoped_callback_factory.h"
+#include "base/scoped_ptr.h"
+#include "base/task.h"
+#include "googleurl/src/gurl.h"
+#include "net/base/completion_callback.h"
+#include "net/http/http_byte_range.h"
+#include "net/url_request/url_request_job.h"
+
+namespace net {
+class FileStream;
+}
+
+namespace fileapi {
+class FileSystemPathManager;
+
+// A request job that handles reading filesystem: URLs
+class FileSystemURLRequestJob : public net::URLRequestJob {
+ public:
+  FileSystemURLRequestJob(
+      net::URLRequest* request, FileSystemPathManager* path_manager,
+      scoped_refptr<base::MessageLoopProxy> file_thread_proxy);
+
+  // URLRequestJob methods:
+  virtual void Start();
+  virtual void Kill();
+  virtual bool ReadRawData(net::IOBuffer* buf, int buf_size, int* bytes_read);
+  virtual bool IsRedirectResponse(GURL* location, int* http_status_code);
+  virtual bool GetMimeType(std::string* mime_type) const;
+  virtual void SetExtraRequestHeaders(const net::HttpRequestHeaders& headers);
+  // TODO(adamk): Implement the rest of the methods required to simulate HTTP.
+
+ private:
+  virtual ~FileSystemURLRequestJob();
+
+  void StartAsync();
+  void DidGetRootPath(bool success, const FilePath& root_path,
+                      const std::string& name);
+  void DidResolve(base::PlatformFileError error_code,
+                  const base::PlatformFileInfo& file_info);
+  void DidOpen(base::PlatformFileError error_code,
+               base::PassPlatformFile file, bool created);
+  void DidRead(int result);
+
+  void NotifyFailed(int rv);
+
+  FilePath relative_file_path_;
+  FilePath absolute_file_path_;
+  GURL origin_url_;
+  FileSystemPathManager* const path_manager_;
+
+  net::CompletionCallbackImpl<FileSystemURLRequestJob> io_callback_;
+  scoped_ptr<net::FileStream> stream_;
+  bool is_directory_;
+
+  net::HttpByteRange byte_range_;
+  int64 remaining_bytes_;
+  int startup_error_;
+
+  ScopedRunnableMethodFactory<FileSystemURLRequestJob> method_factory_;
+  base::ScopedCallbackFactory<FileSystemURLRequestJob> callback_factory_;
+  scoped_refptr<base::MessageLoopProxy> file_thread_proxy_;
+
+  DISALLOW_COPY_AND_ASSIGN(FileSystemURLRequestJob);
+};
+
+}  // namespace fileapi
+
+#endif  // WEBKIT_FILEAPI_FILE_SYSTEM_URL_REQUEST_JOB_H_