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| 1 // Copyright 2017 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 #include "content/browser/frame_host/data_url_navigation_throttle.h" |
| 6 |
| 7 #include "base/feature_list.h" |
| 8 #include "base/memory/ptr_util.h" |
| 9 #include "base/strings/stringprintf.h" |
| 10 #include "content/browser/frame_host/frame_tree.h" |
| 11 #include "content/browser/frame_host/frame_tree_node.h" |
| 12 #include "content/browser/frame_host/navigation_handle_impl.h" |
| 13 #include "content/public/browser/navigation_handle.h" |
| 14 #include "content/public/browser/render_frame_host.h" |
| 15 #include "content/public/common/console_message_level.h" |
| 16 #include "content/public/common/content_features.h" |
| 17 #include "url/url_constants.h" |
| 18 |
| 19 namespace content { |
| 20 |
| 21 namespace { |
| 22 const char kConsoleError[] = |
| 23 "Not allowed to navigate top frame to data URL: %s"; |
| 24 } |
| 25 |
| 26 DataUrlNavigationThrottle::DataUrlNavigationThrottle( |
| 27 NavigationHandle* navigation_handle) |
| 28 : NavigationThrottle(navigation_handle) {} |
| 29 |
| 30 DataUrlNavigationThrottle::~DataUrlNavigationThrottle() {} |
| 31 |
| 32 NavigationThrottle::ThrottleCheckResult |
| 33 DataUrlNavigationThrottle::WillProcessResponse() { |
| 34 NavigationHandleImpl* handle = |
| 35 static_cast<NavigationHandleImpl*>(navigation_handle()); |
| 36 if (handle->is_download()) |
| 37 return PROCEED; |
| 38 |
| 39 RenderFrameHost* top_frame = |
| 40 handle->frame_tree_node()->frame_tree()->root()->current_frame_host(); |
| 41 top_frame->AddMessageToConsole( |
| 42 CONSOLE_MESSAGE_LEVEL_ERROR, |
| 43 base::StringPrintf(kConsoleError, handle->GetURL().spec().c_str())); |
| 44 return CANCEL; |
| 45 } |
| 46 |
| 47 // static |
| 48 std::unique_ptr<NavigationThrottle> |
| 49 DataUrlNavigationThrottle::CreateThrottleForNavigation( |
| 50 NavigationHandle* navigation_handle) { |
| 51 if (navigation_handle->GetURL().SchemeIs(url::kDataScheme) && |
| 52 navigation_handle->IsInMainFrame() && |
| 53 navigation_handle->IsRendererInitiated() && |
| 54 !navigation_handle->IsSameDocument() && |
| 55 !base::FeatureList::IsEnabled( |
| 56 features::kAllowContentInitiatedDataUrlNavigations)) { |
| 57 return base::MakeUnique<DataUrlNavigationThrottle>(navigation_handle); |
| 58 } |
| 59 return nullptr; |
| 60 } |
| 61 |
| 62 } // namespace content |
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