********** Chromium Blob hacking

content/browser/storage_partition_impl_map.cc

 // Copyright (c) 2012 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 "content/browser/storage_partition_impl_map.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
@@ skipping 17 matching lines @@
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/common/content_constants.h"
 #include "content/public/common/url_constants.h"
 #include "crypto/sha2.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "net/url_request/url_request_context.h"
 #include "webkit/appcache/view_appcache_internals_job.h"
 #include "webkit/blob/blob_data.h"
+#include "webkit/blob/blob_storage_context.h"
 #include "webkit/blob/blob_url_request_job_factory.h"
 #include "webkit/fileapi/file_system_url_request_job_factory.h"
 
 using appcache::AppCacheService;
 using fileapi::FileSystemContext;
-using webkit_blob::BlobStorageController;
+using webkit_blob::BlobStorageContext;
 
 namespace content {
 
 namespace {
 
-class BlobProtocolHandler : public net::URLRequestJobFactory::ProtocolHandler {
- public:
-  BlobProtocolHandler(ChromeBlobStorageContext* blob_storage_context,
-                      fileapi::FileSystemContext* file_system_context)
-      : blob_storage_context_(blob_storage_context),
-        file_system_context_(file_system_context) {}
-
-  virtual ~BlobProtocolHandler() {}
-
-  virtual net::URLRequestJob* MaybeCreateJob(
-      net::URLRequest* request,
-      net::NetworkDelegate* network_delegate) const OVERRIDE {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-    if (!webkit_blob_protocol_handler_impl_) {
-      webkit_blob_protocol_handler_impl_.reset(
-          new WebKitBlobProtocolHandlerImpl(blob_storage_context_->controller(),
-                                            file_system_context_));
-    }
-    return webkit_blob_protocol_handler_impl_->MaybeCreateJob(request,
-                                                              network_delegate);
-  }
-
- private:
-  // An implementation of webkit_blob::BlobProtocolHandler that gets
-  // the BlobData from ResourceRequestInfoImpl.
-  class WebKitBlobProtocolHandlerImpl
-      : public webkit_blob::BlobProtocolHandler {
-   public:
-    WebKitBlobProtocolHandlerImpl(
-        webkit_blob::BlobStorageController* blob_storage_controller,
-        fileapi::FileSystemContext* file_system_context)
-        : webkit_blob::BlobProtocolHandler(
-              blob_storage_controller, file_system_context,
-              BrowserThread::GetMessageLoopProxyForThread(
-                  BrowserThread::FILE)) {}
-
-    virtual ~WebKitBlobProtocolHandlerImpl() {}
-
-   private:
-    // webkit_blob::BlobProtocolHandler implementation.
-    virtual scoped_refptr<webkit_blob::BlobData>
-        LookupBlobData(net::URLRequest* request) const OVERRIDE {
-      const ResourceRequestInfoImpl* info =
-          ResourceRequestInfoImpl::ForRequest(request);
-      if (!info)
-        return NULL;
-      return info->requested_blob_data();
-    }
-
-    DISALLOW_COPY_AND_ASSIGN(WebKitBlobProtocolHandlerImpl);
-  };
-
-  const scoped_refptr<ChromeBlobStorageContext> blob_storage_context_;
-  const scoped_refptr<fileapi::FileSystemContext> file_system_context_;
-
-  mutable scoped_ptr<WebKitBlobProtocolHandlerImpl>
-  webkit_blob_protocol_handler_impl_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlobProtocolHandler);
-};
-
 // Adds a bunch of debugging urls. We use an interceptor instead of a protocol
 // handler because we want to reuse the chrome://scheme (everyone is familiar
 // with it, and no need to expose the content/chrome separation through our UI).
 class DeveloperProtocolHandler
     : public net::URLRequestJobFactory::ProtocolHandler {
  public:
   DeveloperProtocolHandler(
       AppCacheService* appcache_service,
-      ChromeBlobStorageContext* blob_storage_context)
+      BlobStorageContext* blob_storage_context)
       : appcache_service_(appcache_service),
         blob_storage_context_(blob_storage_context) {}
   virtual ~DeveloperProtocolHandler() {}
 
   virtual net::URLRequestJob* MaybeCreateJob(
       net::URLRequest* request,
       net::NetworkDelegate* network_delegate) const OVERRIDE {
     // Check for chrome://view-http-cache/*, which uses its own job type.
     if (ViewHttpCacheJobFactory::IsSupportedURL(request->url()))
       return ViewHttpCacheJobFactory::CreateJobForRequest(request,
                                                           network_delegate);
 
     // Next check for chrome://appcache-internals/, which uses its own job type.
     if (request->url().SchemeIs(chrome::kChromeUIScheme) &&
         request->url().host() == chrome::kChromeUIAppCacheInternalsHost) {
       return appcache::ViewAppCacheInternalsJobFactory::CreateJobForRequest(
           request, network_delegate, appcache_service_);
     }
 
-    // Next check for chrome://blob-internals/, which uses its own job type.
-    if (ViewBlobInternalsJobFactory::IsSupportedURL(request->url())) {
-      return ViewBlobInternalsJobFactory::CreateJobForRequest(
-          request, network_delegate, blob_storage_context_->controller());
-    }
+    //// Next check for chrome://blob-internals/, which uses its own job type.
+    //if (ViewBlobInternalsJobFactory::IsSupportedURL(request->url())) {
+    //  return ViewBlobInternalsJobFactory::CreateJobForRequest(
+    //      request, network_delegate, blob_storage_controller_);
+    //}
 
 #if defined(USE_TCMALLOC)
     // Next check for chrome://tcmalloc/, which uses its own job type.
     if (request->url().SchemeIs(chrome::kChromeUIScheme) &&
         request->url().host() == chrome::kChromeUITcmallocHost) {
       return new TcmallocInternalsRequestJob(request, network_delegate);
     }
 #endif
 
     // Next check for chrome://histograms/, which uses its own job type.
     if (request->url().SchemeIs(chrome::kChromeUIScheme) &&
         request->url().host() == chrome::kChromeUIHistogramHost) {
       return new HistogramInternalsRequestJob(request, network_delegate);
     }
 
     return NULL;
   }
 
  private:
   AppCacheService* appcache_service_;
-  ChromeBlobStorageContext* blob_storage_context_;
+  BlobStorageContext* blob_storage_context_;
 };
 
 // These constants are used to create the directory structure under the profile
 // where renderers with a non-default storage partition keep their persistent
 // state. This will contain a set of directories that partially mirror the
 // directory structure of BrowserContext::GetPath().
 //
 // The kStoragePartitionDirname contains an extensions directory which is
 // further partitioned by extension id, followed by another level of directories
 // for the "default" extension storage partition and one directory for each
@@ skipping 267 matching lines @@
       browser_context_->GetPath().Append(
           GetStoragePartitionPath(partition_domain, partition_name));
   StoragePartitionImpl* partition =
       StoragePartitionImpl::Create(browser_context_, in_memory,
                                    partition_path);
   partitions_[partition_config] = partition;
 
   ChromeBlobStorageContext* blob_storage_context =
       ChromeBlobStorageContext::GetFor(browser_context_);
   scoped_ptr<net::URLRequestJobFactory::ProtocolHandler> blob_protocol_handler(
-      new BlobProtocolHandler(blob_storage_context,
-                              partition->GetFileSystemContext()));
+      new webkit_blob::BlobProtocolHandler(
+          blob_storage_context->context(),
+          partition->GetFileSystemContext(),
+          BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE)));
   scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
       file_system_protocol_handler(
             CreateFileSystemProtocolHandler(partition->GetFileSystemContext()));
   scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
       developer_protocol_handler(
           new DeveloperProtocolHandler(partition->GetAppCacheService(),
-                                       blob_storage_context));
+                                       blob_storage_context->context()));
   scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
       chrome_protocol_handler(
           URLDataManagerBackend::CreateProtocolHandler(
               browser_context_->GetResourceContext(),
               browser_context_->IsOffTheRecord()));
   scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
       chrome_devtools_protocol_handler(
           CreateDevToolsProtocolHandler(browser_context_->GetResourceContext(),
                                         browser_context_->IsOffTheRecord()));
 
@@ skipping 132 matching lines @@
 
     // We do not call InitializeURLRequestContext() for media contexts because,
     // other than the HTTP cache, the media contexts share the same backing
     // objects as their associated "normal" request context.  Thus, the previous
     // call serves to initialize the media request context for this storage
     // partition as well.
   }
 }
 
 }  // namespace content