1 | /* |
2 | * Copyright (C) 2006-2018 Apple Inc. All rights reserved. |
3 | * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * |
9 | * 1. Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * 2. Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
14 | * 3. Neither the name of Apple Inc. ("Apple") nor the names of |
15 | * its contributors may be used to endorse or promote products derived |
16 | * from this software without specific prior written permission. |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
19 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
21 | * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
22 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
24 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
25 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
29 | |
30 | #pragma once |
31 | |
32 | #include "FrameLoaderTypes.h" |
33 | #include "ResourceRequest.h" |
34 | #include <wtf/WeakPtr.h> |
35 | #include <wtf/text/WTFString.h> |
36 | |
37 | #if ENABLE(CONTENT_FILTERING) |
38 | #include "ContentFilterUnblockHandler.h" |
39 | #endif |
40 | |
41 | namespace WTF { |
42 | template<typename> class CompletionHandler; |
43 | class CompletionHandlerCallingScope; |
44 | } |
45 | |
46 | namespace WebCore { |
47 | |
48 | class DocumentLoader; |
49 | class FormState; |
50 | class Frame; |
51 | class NavigationAction; |
52 | class ResourceError; |
53 | class ResourceResponse; |
54 | |
55 | enum class ShouldContinue { |
56 | Yes, |
57 | No |
58 | }; |
59 | |
60 | enum class NavigationPolicyDecision : uint8_t { |
61 | ContinueLoad, |
62 | IgnoreLoad, |
63 | StopAllLoads, |
64 | }; |
65 | |
66 | enum class PolicyDecisionMode { Synchronous, Asynchronous }; |
67 | |
68 | using NewWindowPolicyDecisionFunction = CompletionHandler<void(const ResourceRequest&, WeakPtr<FormState>&&, const String& frameName, const NavigationAction&, ShouldContinue)>; |
69 | using NavigationPolicyDecisionFunction = CompletionHandler<void(ResourceRequest&&, WeakPtr<FormState>&&, NavigationPolicyDecision)>; |
70 | |
71 | class PolicyChecker { |
72 | WTF_MAKE_NONCOPYABLE(PolicyChecker); |
73 | WTF_MAKE_FAST_ALLOCATED; |
74 | public: |
75 | explicit PolicyChecker(Frame&); |
76 | |
77 | void checkNavigationPolicy(ResourceRequest&&, const ResourceResponse& redirectResponse, DocumentLoader*, RefPtr<FormState>&&, NavigationPolicyDecisionFunction&&, PolicyDecisionMode = PolicyDecisionMode::Asynchronous); |
78 | void checkNavigationPolicy(ResourceRequest&&, const ResourceResponse& redirectResponse, NavigationPolicyDecisionFunction&&); |
79 | void checkNewWindowPolicy(NavigationAction&&, ResourceRequest&&, RefPtr<FormState>&&, const String& frameName, NewWindowPolicyDecisionFunction&&); |
80 | |
81 | void stopCheck(); |
82 | |
83 | void cannotShowMIMEType(const ResourceResponse&); |
84 | |
85 | FrameLoadType loadType() const { return m_loadType; } |
86 | void setLoadType(FrameLoadType loadType) { m_loadType = loadType; } |
87 | |
88 | bool delegateIsDecidingNavigationPolicy() const { return m_delegateIsDecidingNavigationPolicy; } |
89 | bool delegateIsHandlingUnimplementablePolicy() const { return m_delegateIsHandlingUnimplementablePolicy; } |
90 | |
91 | #if ENABLE(CONTENT_FILTERING) |
92 | void setContentFilterUnblockHandler(ContentFilterUnblockHandler unblockHandler) { m_contentFilterUnblockHandler = WTFMove(unblockHandler); } |
93 | #endif |
94 | |
95 | private: |
96 | void handleUnimplementablePolicy(const ResourceError&); |
97 | WTF::CompletionHandlerCallingScope extendBlobURLLifetimeIfNecessary(ResourceRequest&) const; |
98 | |
99 | Frame& m_frame; |
100 | |
101 | bool m_delegateIsDecidingNavigationPolicy; |
102 | bool m_delegateIsHandlingUnimplementablePolicy; |
103 | |
104 | // This identifies the type of navigation action which prompted this load. Note |
105 | // that WebKit conveys this value as the WebActionNavigationTypeKey value |
106 | // on navigation action delegate callbacks. |
107 | FrameLoadType m_loadType; |
108 | |
109 | #if ENABLE(CONTENT_FILTERING) |
110 | ContentFilterUnblockHandler m_contentFilterUnblockHandler; |
111 | #endif |
112 | }; |
113 | |
114 | } // namespace WebCore |
115 | |