Bug Summary

File:Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/Source/WebCore/inspector/InspectorAuditResourcesObject.cpp
Warning:line 78, column 16
Local variable 'cachedResource' is uncounted and unsafe

Annotated Source Code

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clang -cc1 -cc1 -triple arm64-apple-ios26.2.0-simulator -O3 -Wundef-prefix=TARGET_OS_ -Werror=undef-prefix -Wdeprecated-objc-isa-usage -Werror=deprecated-objc-isa-usage -Werror=implicit-function-declaration -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name UnifiedSource257.cpp -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=osx -analyzer-checker=security.insecureAPI.decodeValueOfObjCType -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer 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/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator26.2.sdk/usr/local/include -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/Release-iphonesimulator/usr/local/include/webrtc -I /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator26.2.sdk/usr/local/include/webrtc -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/Release-iphonesimulator/usr/local/include/webm -I /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator26.2.sdk/usr/local/include/webm -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/PAL.build/PAL.build/DerivedSources -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/PAL.build/Release-iphonesimulator/PAL.build/DerivedSources -I /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/Source/WebCore -I 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alpha.webkit.ForwardDeclChecker,alpha.webkit.MemoryUnsafeCastChecker,alpha.webkit.NoDeleteChecker,alpha.webkit.NoUncheckedPtrMemberChecker,alpha.webkit.NoUnretainedMemberChecker,alpha.webkit.RetainPtrCtorAdoptChecker,alpha.webkit.UncheckedCallArgsChecker,alpha.webkit.UncheckedLocalVarsChecker,alpha.webkit.UncountedCallArgsChecker,alpha.webkit.UncountedLocalVarsChecker,alpha.webkit.UnretainedCallArgsChecker,alpha.webkit.UnretainedLambdaCapturesChecker,alpha.webkit.UnretainedLocalVarsChecker,webkit.NoUncountedMemberChecker,webkit.RefCntblBaseVirtualDtor,webkit.UncountedLambdaCapturesChecker -analyzer-config max-nodes=10000000 -analyzer-config verbose-report-filename=true -fdwarf2-cfi-asm -o /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/scan-build-output/StaticAnalyzer/WebCore/WebCore/normal/arm64/UnifiedSource257.plist -x c++ /Volumes/Data/worker/Apple-iOS-26-Safer-CPP-Checks-EWS/build/WebKitBuild/Release-iphonesimulator/DerivedSources/WebCore/unified-sources/UnifiedSource257.cpp
1/*
2 * Copyright (C) 2019 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "InspectorAuditResourcesObject.h"
28
29#include "CachedCSSStyleSheet.h"
30#include "CachedFont.h"
31#include "CachedImage.h"
32#include "CachedRawResource.h"
33#include "CachedResource.h"
34#include "CachedSVGDocument.h"
35#include "Document.h"
36#include "ExceptionOr.h"
37#include "FrameDestructionObserverInlines.h"
38#include "InspectorResourceUtilities.h"
39#include <wtf/Vector.h>
40#include <wtf/text/MakeString.h>
41#include <wtf/text/WTFString.h>
42
43namespace WebCore {
44
45using namespace Inspector;
46
47#define ERROR_IF_NO_ACTIVE_AUDIT()if (!m_auditAgent.hasActiveAudit()) return Exception { ExceptionCode
::NotAllowedError, "Cannot be called outside of a Web Inspector Audit"_s
};
\
48 if (!m_auditAgent.hasActiveAudit()) \
49 return Exception { ExceptionCode::NotAllowedError, "Cannot be called outside of a Web Inspector Audit"_s };
50
51InspectorAuditResourcesObject::InspectorAuditResourcesObject(InspectorAuditAgent& auditAgent)
52 : m_auditAgent(auditAgent)
53 , m_cachedResourceClient(*this)
54 , m_cachedFontClient(*this)
55 , m_cachedImageClient(*this)
56 , m_cachedRawResourceClient(*this)
57 , m_cachedSVGDocumentClient(*this)
58 , m_cachedStyleSheetClient(*this)
59{
60}
61
62InspectorAuditResourcesObject::~InspectorAuditResourcesObject()
63{
64 for (auto* cachedResource : m_resources.values())
65 cachedResource->removeClient(clientForResource(*cachedResource));
66}
67
68ExceptionOr<Vector<InspectorAuditResourcesObject::Resource>> InspectorAuditResourcesObject::getResources(Document& document)
69{
70 ERROR_IF_NO_ACTIVE_AUDIT()if (!m_auditAgent.hasActiveAudit()) return Exception { ExceptionCode
::NotAllowedError, "Cannot be called outside of a Web Inspector Audit"_s
};
;
71
72 Vector<Resource> resources;
73
74 RefPtr frame = document.frame();
75 if (!frame)
76 return Exception { ExceptionCode::NotAllowedError, "Cannot be called with a detached document"_s };
77
78 for (auto* cachedResource : ResourceUtilities::cachedResourcesForFrame(frame)) {
Local variable 'cachedResource' is uncounted and unsafe
79 Resource resource;
80 resource.url = cachedResource->url().string();
81 resource.mimeType = cachedResource->mimeType();
82
83 bool exists = false;
84 for (const auto& entry : m_resources) {
85 if (entry.value == cachedResource) {
86 resource.id = entry.key;
87 exists = true;
88 break;
89 }
90 }
91 if (!exists) {
92 cachedResource->addClient(clientForResource(*cachedResource));
93
94 resource.id = String::number(m_resources.size() + 1);
95 m_resources.add(resource.id, cachedResource);
96 }
97
98 resources.append(WTF::move(resource));
99 }
100
101 return resources;
102}
103
104ExceptionOr<InspectorAuditResourcesObject::ResourceContent> InspectorAuditResourcesObject::getResourceContent(Document& document, const String& id)
105{
106 ERROR_IF_NO_ACTIVE_AUDIT()if (!m_auditAgent.hasActiveAudit()) return Exception { ExceptionCode
::NotAllowedError, "Cannot be called outside of a Web Inspector Audit"_s
};
;
107
108 RefPtr frame = document.frame();
109 if (!frame)
110 return Exception { ExceptionCode::NotAllowedError, "Cannot be called with a detached document"_s };
111
112 auto* cachedResource = m_resources.get(id);
113 if (!cachedResource)
114 return Exception { ExceptionCode::NotFoundError, makeString("Unknown identifier "_s, id) };
115
116 Inspector::Protocol::ErrorString errorString;
117 ResourceContent resourceContent;
118 ResourceUtilities::resourceContent(errorString, frame, cachedResource->url(), &resourceContent.data, &resourceContent.base64Encoded);
119 if (!errorString.isEmpty())
120 return Exception { ExceptionCode::NotFoundError, errorString };
121
122 return resourceContent;
123}
124
125Ref<CachedResourceClient> InspectorAuditResourcesObject::clientForResource(const CachedResource& cachedResource)
126{
127 if (is<CachedCSSStyleSheet>(cachedResource))
128 return m_cachedStyleSheetClient;
129
130 if (is<CachedFont>(cachedResource))
131 return m_cachedFontClient;
132
133 if (is<CachedImage>(cachedResource))
134 return m_cachedImageClient;
135
136 if (is<CachedRawResource>(cachedResource))
137 return m_cachedRawResourceClient;
138
139 if (is<CachedSVGDocument>(cachedResource))
140 return m_cachedSVGDocumentClient;
141
142 return m_cachedResourceClient;
143}
144
145} // namespace WebCore