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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 "chrome/renderer/safe_browsing/safe_browsing_url_loader_throttle.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "mojo/public/cpp/bindings/interface_request.h" | |
| 9 #include "net/url_request/redirect_info.h" | |
| 10 | |
| 11 namespace safe_browsing { | |
| 12 | |
| 13 SafeBrowsingURLLoaderThrottle::SafeBrowsingURLLoaderThrottle( | |
| 14 chrome::mojom::SafeBrowsing* safe_browsing, | |
| 15 int render_frame_id) | |
| 16 : safe_browsing_(safe_browsing), | |
| 17 render_frame_id_(render_frame_id), | |
| 18 weak_factory_(this) {} | |
| 19 | |
| 20 SafeBrowsingURLLoaderThrottle::~SafeBrowsingURLLoaderThrottle() = default; | |
| 21 | |
| 22 void SafeBrowsingURLLoaderThrottle::WillStartRequest( | |
| 23 const GURL& url, | |
| 24 int load_flags, | |
| 25 content::ResourceType resource_type, | |
| 26 bool* defer) { | |
| 27 DCHECK_EQ(0u, pending_checks_); | |
| 28 DCHECK(!blocked_); | |
| 29 DCHECK(!url_checker_); | |
| 30 | |
| 31 pending_checks_++; | |
| 32 // Use a weak pointer to self because |safe_browsing_| is not owned by this | |
| 33 // object. | |
| 34 safe_browsing_->CreateCheckerAndCheck( | |
| 35 render_frame_id_, mojo::MakeRequest(&url_checker_), url, load_flags, | |
| 36 resource_type, | |
| 37 base::BindOnce(&SafeBrowsingURLLoaderThrottle::OnCheckUrlResult, | |
| 38 weak_factory_.GetWeakPtr())); | |
| 39 safe_browsing_ = nullptr; | |
| 40 | |
| 41 url_checker_.set_connection_error_handler( | |
| 42 base::Bind(&SafeBrowsingURLLoaderThrottle::OnConnectionError, | |
| 43 base::Unretained(this))); | |
| 44 } | |
| 45 | |
| 46 void SafeBrowsingURLLoaderThrottle::WillRedirectRequest( | |
| 47 const net::RedirectInfo& redirect_info, | |
| 48 bool* defer) { | |
| 49 // If |blocked_| is true, the resource load has been canceled and there | |
| 50 // shouldn't be such a notification. | |
| 51 DCHECK(!blocked_); | |
| 52 | |
| 53 if (!url_checker_) { | |
| 54 DCHECK_EQ(0u, pending_checks_); | |
| 55 return; | |
| 56 } | |
| 57 | |
| 58 pending_checks_++; | |
| 59 url_checker_->CheckUrl( | |
| 60 redirect_info.new_url, | |
| 61 base::BindOnce(&SafeBrowsingURLLoaderThrottle::OnCheckUrlResult, | |
| 62 base::Unretained(this))); | |
| 63 } | |
| 64 | |
| 65 void SafeBrowsingURLLoaderThrottle::WillProcessResponse(bool* defer) { | |
| 66 // If |blocked_| is true, the resource load has been canceled and there | |
| 67 // shouldn't be such a notification. | |
| 68 DCHECK(!blocked_); | |
| 69 | |
| 70 if (pending_checks_ > 0) | |
| 71 *defer = true; | |
| 72 } | |
| 73 | |
| 74 void SafeBrowsingURLLoaderThrottle::OnCheckUrlResult(bool safe) { | |
| 75 if (blocked_ || !url_checker_) | |
| 76 return; | |
| 77 | |
| 78 DCHECK_LT(0u, pending_checks_); | |
| 79 pending_checks_--; | |
| 80 | |
| 81 if (safe) { | |
| 82 if (pending_checks_ == 0) { | |
| 83 // The resource load is not necessarily deferred, in that case Resume() is | |
| 84 // a no-op. | |
| 85 delegate_->Resume(); | |
| 86 } | |
| 87 } else { | |
| 88 url_checker_.reset(); | |
| 89 blocked_ = true; | |
| 90 pending_checks_ = 0; | |
| 91 delegate_->CancelWithError(net::ERR_ABORTED); | |
| 92 } | |
| 93 } | |
| 94 | |
| 95 void SafeBrowsingURLLoaderThrottle::OnConnectionError() { | |
| 96 DCHECK(!blocked_); | |
| 97 | |
| 98 // If a service-side disconnect happens, treat all URLs as if they are safe. | |
| 99 url_checker_.reset(); | |
| 100 pending_checks_ = 0; | |
| 101 delegate_->Resume(); | |
| 102 } | |
| 103 | |
| 104 } // namespace safe_browsing | |
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Chromium Code Reviews
Issue 2924723002:
Network service: SafeBrowsing check for frame-resources from browser. (Closed)
