1/*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#pragma once
32
33#include "ResourceLoaderOptions.h"
34#include <wtf/Noncopyable.h>
35#include <wtf/RefPtr.h>
36#include <wtf/text/AtomicString.h>
37
38namespace WebCore {
39
40 class ResourceError;
41 class ResourceRequest;
42 class ResourceResponse;
43 class ScriptExecutionContext;
44 class ThreadableLoaderClient;
45
46 enum class ContentSecurityPolicyEnforcement {
47 DoNotEnforce,
48 EnforceChildSrcDirective,
49 EnforceConnectSrcDirective,
50 EnforceScriptSrcDirective,
51 };
52
53 enum class ResponseFilteringPolicy {
54 Enable,
55 Disable,
56 };
57
58 struct ThreadableLoaderOptions : ResourceLoaderOptions {
59 ThreadableLoaderOptions();
60 explicit ThreadableLoaderOptions(FetchOptions&&);
61 ThreadableLoaderOptions(const ResourceLoaderOptions&, ContentSecurityPolicyEnforcement, String&& initiator, ResponseFilteringPolicy);
62 ~ThreadableLoaderOptions();
63
64 ThreadableLoaderOptions isolatedCopy() const;
65
66 ContentSecurityPolicyEnforcement contentSecurityPolicyEnforcement { ContentSecurityPolicyEnforcement::EnforceConnectSrcDirective };
67 String initiator; // This cannot be an AtomicString, as isolatedCopy() wouldn't create an object that's safe for passing to another thread.
68 ResponseFilteringPolicy filteringPolicy { ResponseFilteringPolicy::Disable };
69 };
70
71 // Useful for doing loader operations from any thread (not threadsafe,
72 // just able to run on threads other than the main thread).
73 class ThreadableLoader {
74 WTF_MAKE_NONCOPYABLE(ThreadableLoader);
75 public:
76 static void loadResourceSynchronously(ScriptExecutionContext&, ResourceRequest&&, ThreadableLoaderClient&, const ThreadableLoaderOptions&);
77 static RefPtr<ThreadableLoader> create(ScriptExecutionContext&, ThreadableLoaderClient&, ResourceRequest&&, const ThreadableLoaderOptions&, String&& referrer = String());
78
79 virtual void cancel() = 0;
80 void ref() { refThreadableLoader(); }
81 void deref() { derefThreadableLoader(); }
82
83 static void logError(ScriptExecutionContext&, const ResourceError&, const String&);
84
85 protected:
86 ThreadableLoader() = default;
87 virtual ~ThreadableLoader() = default;
88 virtual void refThreadableLoader() = 0;
89 virtual void derefThreadableLoader() = 0;
90 };
91
92} // namespace WebCore
93