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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 #ifndef COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_SUBFRAME_NAVIGATION_FILTER
ING_THROTTLE_H_ |
| 6 #define COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_SUBFRAME_NAVIGATION_FILTER
ING_THROTTLE_H_ |
| 7 |
| 8 #include "base/macros.h" |
| 9 #include "base/memory/weak_ptr.h" |
| 10 #include "components/subresource_filter/content/browser/async_document_subresour
ce_filter.h" |
| 11 #include "content/public/browser/navigation_throttle.h" |
| 12 |
| 13 namespace content { |
| 14 class NavigationHandle; |
| 15 } // namespace content |
| 16 |
| 17 namespace subresource_filter { |
| 18 |
| 19 class AsyncDocumentSubresourceFilter; |
| 20 |
| 21 // NavigationThrottle responsible for filtering subframe document loads, which |
| 22 // are considered subresource loads of their parent frame, hence are subject to |
| 23 // subresource filtering using the parent frame's |
| 24 // AsyncDocumentSubresourceFilter. |
| 25 // |
| 26 // The throttle should only be instantiated for navigations occuring in |
| 27 // subframes owned by documents which already have filtering activated, and |
| 28 // therefore an associated (Async)DocumentSubresourceFilter. |
| 29 class SubframeNavigationFilteringThrottle : public content::NavigationThrottle { |
| 30 public: |
| 31 SubframeNavigationFilteringThrottle( |
| 32 content::NavigationHandle* handle, |
| 33 AsyncDocumentSubresourceFilter* parent_frame_filter); |
| 34 ~SubframeNavigationFilteringThrottle() override; |
| 35 |
| 36 // content::NavigationThrottle: |
| 37 content::NavigationThrottle::ThrottleCheckResult WillStartRequest() override; |
| 38 content::NavigationThrottle::ThrottleCheckResult WillRedirectRequest() |
| 39 override; |
| 40 |
| 41 private: |
| 42 content::NavigationThrottle::ThrottleCheckResult DeferToCalculateLoadPolicy(); |
| 43 void OnCalculatedLoadPolicy(LoadPolicy policy); |
| 44 |
| 45 // Must outlive this class. |
| 46 AsyncDocumentSubresourceFilter* parent_frame_filter_; |
| 47 |
| 48 base::WeakPtrFactory<SubframeNavigationFilteringThrottle> weak_ptr_factory_; |
| 49 |
| 50 DISALLOW_COPY_AND_ASSIGN(SubframeNavigationFilteringThrottle); |
| 51 }; |
| 52 |
| 53 } // namespace subresource_filter |
| 54 |
| 55 #endif // COMPONENTS_SUBRESOURCE_FILTER_CONTENT_BROWSER_SUBFRAME_NAVIGATION_FIL
TERING_THROTTLE_H_ |
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