storage/browser/blob/view_blob_internals_job.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef STORAGE_BROWSER_BLOB_VIEW_BLOB_INTERNALS_JOB_H_
   6 #define STORAGE_BROWSER_BLOB_VIEW_BLOB_INTERNALS_JOB_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/weak_ptr.h"
  11 #include "net/url_request/url_request_simple_job.h"
  12 #include "storage/browser/storage_browser_export.h"
  13
  14 namespace net {
  15 class URLRequest;
  16 }  // namespace net
  17
  18 namespace storage {
  19
  20 class InternalBlobData;
  21 class BlobStorageContext;
  22
  23 // A job subclass that implements a protocol to inspect the internal
  24 // state of blob registry.
  25 class STORAGE_EXPORT ViewBlobInternalsJob
  26     : public net::URLRequestSimpleJob {
  27  public:
  28   ViewBlobInternalsJob(net::URLRequest* request,
  29                        net::NetworkDelegate* network_delegate,
  30                        BlobStorageContext* blob_storage_context);
  31
  32   void Start() override;
  33   int GetData(std::string* mime_type,
  34               std::string* charset,
  35               std::string* data,
  36               const net::CompletionCallback& callback) const override;
  37   bool IsRedirectResponse(GURL* location, int* http_status_code) override;
  38   void Kill() override;
  39
  40  private:
  41   ~ViewBlobInternalsJob() override;
  42
  43   void GenerateHTML(std::string* out) const;
  44   static void GenerateHTMLForBlobData(const InternalBlobData& blob_data,
  45                                       int refcount,
  46                                       std::string* out);
  47
  48   BlobStorageContext* blob_storage_context_;
  49   base::WeakPtrFactory<ViewBlobInternalsJob> weak_factory_;
  50
  51   DISALLOW_COPY_AND_ASSIGN(ViewBlobInternalsJob);
  52 };
  53
  54 }  // namespace storage
  55
  56 #endif  // STORAGE_BROWSER_BLOB_VIEW_BLOB_INTERNALS_JOB_H_