Rename the drive: scheme with the externalfile: scheme.

chrome/browser/chromeos/drive/drive_url_request_job.cc

Index: chrome/browser/chromeos/drive/drive_url_request_job.cc
diff --git a/chrome/browser/chromeos/drive/drive_url_request_job.cc b/chrome/browser/chromeos/drive/drive_url_request_job.cc
deleted file mode 100644
index e615deda09ae6bae4e64e7f30265937a5d14a2e6..0000000000000000000000000000000000000000
--- a/chrome/browser/chromeos/drive/drive_url_request_job.cc
+++ /dev/null
@@ -1,385 +0,0 @@
-// Copyright 2013 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 "chrome/browser/chromeos/drive/drive_url_request_job.h"
-
-#include <algorithm>
-#include <string>
-#include <vector>
-
-#include "base/bind.h"
-#include "base/logging.h"
-#include "base/memory/ref_counted.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/chromeos/drive/file_system_util.h"
-#include "chrome/browser/extensions/api/file_handlers/mime_util.h"
-#include "chrome/browser/profiles/profile_manager.h"
-#include "chrome/common/url_constants.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/storage_partition.h"
-#include "net/base/net_errors.h"
-#include "net/http/http_byte_range.h"
-#include "net/http/http_request_headers.h"
-#include "net/http/http_response_info.h"
-#include "net/http/http_util.h"
-#include "net/url_request/url_request.h"
-#include "net/url_request/url_request_status.h"
-#include "storage/browser/fileapi/file_system_backend.h"
-#include "storage/browser/fileapi/file_system_context.h"
-#include "storage/browser/fileapi/file_system_operation_runner.h"
-
-using content::BrowserThread;
-
-namespace drive {
-namespace {
-
-struct MimeTypeReplacement {
-  const char* original_type;
-  const char* new_type;
-};
-
-const MimeTypeReplacement kMimeTypeReplacements[] = {
-  {"message/rfc822", "multipart/related"}  // Fixes MHTML
-};
-
-// Check if the |url| points a valid location or not.
-bool IsValidURL(const storage::FileSystemURL& url) {
-  switch (url.type()) {
-    case storage::kFileSystemTypeDrive: {
-      const base::FilePath my_drive_path = util::GetDriveMyDriveRootPath();
-      const base::FilePath drive_other_path =
-          util::GetDriveGrandRootPath().Append(util::kDriveOtherDirName);
-      const base::FilePath url_drive_path =
-          util::ExtractDrivePathFromFileSystemUrl(url);
-      return my_drive_path == url_drive_path ||
-             my_drive_path.IsParent(url_drive_path) ||
-             drive_other_path.IsParent(url_drive_path);
-    }
-    default:
-      return false;
-  }
-}
-
-// Delegate for obtaining FileSystemContext, FileSystemURL, and mime type on
-// the UI thread.
-class GetFileSystemContextDelegate {
- public:
-  GetFileSystemContextDelegate(
-      void* profile_id,
-      const GURL& url,
-      const DriveURLRequestJob::DelegateCallback& callback)
-      : profile_id_(profile_id), url_(url), callback_(callback) {
-    DCHECK_CURRENTLY_ON(BrowserThread::IO);
-    BrowserThread::PostTask(
-        BrowserThread::UI,
-        FROM_HERE,
-        base::Bind(&GetFileSystemContextDelegate::RunOnUIThread,
-                   base::Unretained(this)));
-  }
-
- private:
-  void RunOnUIThread() {
-    DCHECK_CURRENTLY_ON(BrowserThread::UI);
-    Profile* const profile = reinterpret_cast<Profile*>(profile_id_);
-    if (!g_browser_process->profile_manager()->IsValidProfile(profile)) {
-      ReplyResult(net::ERR_FAILED);
-      return;
-    }
-    content::StoragePartition* const storage =
-        content::BrowserContext::GetStoragePartitionForSite(profile, url_);
-    DCHECK(storage);
-
-    scoped_refptr<storage::FileSystemContext> context =
-        storage->GetFileSystemContext();
-    DCHECK(context.get());
-
-    // Obtain the absolute path in the file system.
-    base::FilePath path = drive::util::GetDriveMountPointPath(profile);
-    drive::util::GetDriveGrandRootPath().AppendRelativePath(
-        util::DriveURLToFilePath(url_), &path);
-
-    storage::ExternalFileSystemBackend* const backend =
-        context->external_backend();
-    DCHECK(backend);
-
-    // Obtain the virtual path.
-    base::FilePath virtual_path;
-    if (!backend->GetVirtualPath(path, &virtual_path)) {
-      ReplyResult(net::ERR_FILE_NOT_FOUND);
-      return;
-    }
-
-    // Obtain the file system URL.
-    // TODO(hirono): After removing MHTML support, stop to use the special
-    // drive: scheme and use filesystem: URL directly.  crbug.com/415455
-    file_system_url_ = context->CreateCrackedFileSystemURL(
-        GURL(std::string(chrome::kDriveScheme) + ":"),
-        storage::kFileSystemTypeExternal,
-        virtual_path);
-    if (!IsValidURL(file_system_url_)) {
-      ReplyResult(net::ERR_INVALID_URL);
-      return;
-    }
-
-    file_system_context_ = context;
-
-    extensions::app_file_handler_util::GetMimeTypeForLocalPath(
-        profile,
-        file_system_url_.path(),
-        base::Bind(&GetFileSystemContextDelegate::OnGotMimeTypeOnUIThread,
-                   base::Unretained(this)));
-  }
-
-  void OnGotMimeTypeOnUIThread(const std::string& mime_type) {
-    DCHECK_CURRENTLY_ON(BrowserThread::UI);
-    mime_type_ = mime_type;
-    for (size_t i = 0; i < arraysize(kMimeTypeReplacements); i++) {
-      if (mime_type_ == kMimeTypeReplacements[i].original_type) {
-        mime_type_ = kMimeTypeReplacements[i].new_type;
-        break;
-      }
-    }
-    ReplyResult(net::OK);
-  }
-
-  void ReplyResult(net::Error error) {
-    DCHECK_CURRENTLY_ON(BrowserThread::UI);
-
-    BrowserThread::PostTask(
-        BrowserThread::IO,
-        FROM_HERE,
-        base::Bind(callback_,
-                   error,
-                   file_system_context_,
-                   file_system_url_,
-                   mime_type_));
-    delete this;
-  }
-
-  void* const profile_id_;
-  const GURL url_;
-  const DriveURLRequestJob::DelegateCallback callback_;
-  scoped_refptr<storage::FileSystemContext> file_system_context_;
-  storage::FileSystemURL file_system_url_;
-  std::string mime_type_;
-
-  DISALLOW_COPY_AND_ASSIGN(GetFileSystemContextDelegate);
-};
-
-}  // namespace
-
-DriveURLRequestJob::DriveURLRequestJob(void* profile_id,
-                                       net::URLRequest* request,
-                                       net::NetworkDelegate* network_delegate)
-    : net::URLRequestJob(request, network_delegate),
-      profile_id_(profile_id),
-      remaining_bytes_(0),
-      weak_ptr_factory_(this) {
-}
-
-void DriveURLRequestJob::SetExtraRequestHeaders(
-    const net::HttpRequestHeaders& headers) {
-  std::string range_header;
-  if (headers.GetHeader(net::HttpRequestHeaders::kRange, &range_header)) {
-    // Note: We only support single range requests.
-    std::vector<net::HttpByteRange> ranges;
-    if (net::HttpUtil::ParseRangeHeader(range_header, &ranges) &&
-        ranges.size() == 1) {
-      byte_range_ = ranges[0];
-    } else {
-      // Failed to parse Range: header, so notify the error.
-      NotifyDone(
-          net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                net::ERR_REQUEST_RANGE_NOT_SATISFIABLE));
-    }
-  }
-}
-
-void DriveURLRequestJob::Start() {
-  DVLOG(1) << "Starting request";
-  DCHECK_CURRENTLY_ON(BrowserThread::IO);
-  DCHECK(!stream_reader_);
-
-  // We only support GET request.
-  if (request()->method() != "GET") {
-    LOG(WARNING) << "Failed to start request: "
-                 << request()->method() << " method is not supported";
-    NotifyStartError(net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                           net::ERR_METHOD_NOT_SUPPORTED));
-    return;
-  }
-
-  // Check if the scheme is correct.
-  if (!request()->url().SchemeIs(chrome::kDriveScheme)) {
-    NotifyStartError(net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                           net::ERR_INVALID_URL));
-    return;
-  }
-
-  // Owned by itself.
-  new GetFileSystemContextDelegate(
-      profile_id_,
-      request()->url(),
-      base::Bind(&DriveURLRequestJob::OnDelegateResultObtained,
-                 weak_ptr_factory_.GetWeakPtr()));
-}
-
-void DriveURLRequestJob::OnDelegateResultObtained(
-    net::Error error,
-    const scoped_refptr<storage::FileSystemContext>& file_system_context,
-    const storage::FileSystemURL& file_system_url,
-    const std::string& mime_type) {
-  DCHECK_CURRENTLY_ON(BrowserThread::IO);
-
-  if (error != net::OK) {
-    NotifyStartError(net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                           error));
-    return;
-  }
-
-  DCHECK(file_system_context.get());
-  file_system_context_ = file_system_context;
-  file_system_url_ = file_system_url;
-  mime_type_ = mime_type;
-
-  // Check if the entry has a redirect URL.
-  file_system_context_->external_backend()->GetRedirectURLForContents(
-      file_system_url_,
-      base::Bind(&DriveURLRequestJob::OnRedirectURLObtained,
-                 weak_ptr_factory_.GetWeakPtr()));
-}
-
-void DriveURLRequestJob::OnRedirectURLObtained(const GURL& redirect_url) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  redirect_url_ = redirect_url;
-  if (!redirect_url_.is_empty()) {
-    NotifyHeadersComplete();
-    return;
-  }
-
-  // Obtain file system context.
-  file_system_context_->operation_runner()->GetMetadata(
-      file_system_url_,
-      base::Bind(&DriveURLRequestJob::OnFileInfoObtained,
-                 weak_ptr_factory_.GetWeakPtr()));
-}
-
-void DriveURLRequestJob::OnFileInfoObtained(base::File::Error result,
-                                            const base::File::Info& file_info) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-
-  if (result == base::File::FILE_ERROR_NOT_FOUND) {
-    NotifyStartError(net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                           net::ERR_FILE_NOT_FOUND));
-    return;
-  }
-
-  if (result != base::File::FILE_OK || file_info.is_directory) {
-    NotifyStartError(
-        net::URLRequestStatus(net::URLRequestStatus::FAILED, net::ERR_FAILED));
-    return;
-  }
-
-  // Compute content size.
-  int64 offset = 0;
-  int64 size = storage::kMaximumLength;
-  if (byte_range_.ComputeBounds(file_info.size)) {
-    offset = byte_range_.first_byte_position();
-    size = byte_range_.last_byte_position() + 1 -
-           byte_range_.first_byte_position();
-    set_expected_content_size(size);
-  }
-  remaining_bytes_ = size;
-
-  // Create file stream reader.
-  stream_reader_ = file_system_context_->CreateFileStreamReader(
-      file_system_url_, offset, size, base::Time());
-  if (!stream_reader_) {
-    NotifyStartError(net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                           net::ERR_FILE_NOT_FOUND));
-    return;
-  }
-
-  NotifyHeadersComplete();
-}
-
-void DriveURLRequestJob::Kill() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-
-  stream_reader_.reset();
-  file_system_context_ = NULL;
-  net::URLRequestJob::Kill();
-  weak_ptr_factory_.InvalidateWeakPtrs();
-}
-
-bool DriveURLRequestJob::GetMimeType(std::string* mime_type) const {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  mime_type->assign(mime_type_);
-  return !mime_type->empty();
-}
-
-bool DriveURLRequestJob::IsRedirectResponse(
-    GURL* location, int* http_status_code) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  if (redirect_url_.is_empty())
-    return false;
-
-  // Redirect a hosted document.
-  *location = redirect_url_;
-  const int kHttpFound = 302;
-  *http_status_code = kHttpFound;
-  return true;
-}
-
-bool DriveURLRequestJob::ReadRawData(
-    net::IOBuffer* buf, int buf_size, int* bytes_read) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  DCHECK(stream_reader_);
-
-  if (remaining_bytes_ == 0) {
-    *bytes_read = 0;
-    return true;
-  }
-
-  const int result = stream_reader_->Read(
-      buf,
-      std::min(static_cast<int64>(buf_size), remaining_bytes_),
-      base::Bind(&DriveURLRequestJob::OnReadCompleted,
-                 weak_ptr_factory_.GetWeakPtr()));
-
-  if (result == net::ERR_IO_PENDING) {
-    // The data is not yet available.
-    SetStatus(net::URLRequestStatus(net::URLRequestStatus::IO_PENDING, 0));
-    return false;
-  }
-  if (result < 0) {
-    // An error occurs.
-    NotifyDone(net::URLRequestStatus(net::URLRequestStatus::FAILED, result));
-    return false;
-  }
-
-  // Reading has been finished immediately.
-  *bytes_read = result;
-  remaining_bytes_ -= result;
-  return true;
-}
-
-DriveURLRequestJob::~DriveURLRequestJob() {
-}
-
-void DriveURLRequestJob::OnReadCompleted(int read_result) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-
-  if (read_result < 0) {
-    DCHECK_NE(read_result, net::ERR_IO_PENDING);
-    NotifyDone(net::URLRequestStatus(net::URLRequestStatus::FAILED,
-                                     read_result));
-  }
-
-  remaining_bytes_ -= read_result;
-  SetStatus(net::URLRequestStatus());  // Clear the IO_PENDING status.
-  NotifyReadComplete(read_result);
-}
-
-}  // namespace drive