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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /parser/html/nsHtml5StringParser.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'parser/html/nsHtml5StringParser.cpp')
-rw-r--r-- | parser/html/nsHtml5StringParser.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/parser/html/nsHtml5StringParser.cpp b/parser/html/nsHtml5StringParser.cpp new file mode 100644 index 0000000000..98f643abb4 --- /dev/null +++ b/parser/html/nsHtml5StringParser.cpp @@ -0,0 +1,115 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsHtml5StringParser.h" +#include "nsHtml5DependentUTF16Buffer.h" +#include "nsHtml5Tokenizer.h" +#include "nsHtml5TreeBuilder.h" +#include "nsHtml5TreeOpExecutor.h" +#include "nsIContent.h" +#include "mozilla/dom/Document.h" +#include "mozilla/dom/DocumentFragment.h" + +using mozilla::dom::Document; + +NS_IMPL_ISUPPORTS0(nsHtml5StringParser) + +nsHtml5StringParser::nsHtml5StringParser() + : mBuilder(new nsHtml5OplessBuilder()), + mTreeBuilder(new nsHtml5TreeBuilder(mBuilder)), + mTokenizer(new nsHtml5Tokenizer(mTreeBuilder.get(), false)) { + mTokenizer->setInterner(&mAtomTable); +} + +nsHtml5StringParser::~nsHtml5StringParser() {} + +nsresult nsHtml5StringParser::ParseFragment(const nsAString& aSourceBuffer, + nsIContent* aTargetNode, + nsAtom* aContextLocalName, + int32_t aContextNamespace, + bool aQuirks, + bool aPreventScriptExecution) { + NS_ENSURE_TRUE(aSourceBuffer.Length() <= INT32_MAX, NS_ERROR_OUT_OF_MEMORY); + + Document* doc = aTargetNode->OwnerDoc(); + nsIURI* uri = doc->GetDocumentURI(); + NS_ENSURE_TRUE(uri, NS_ERROR_NOT_AVAILABLE); + + mTreeBuilder->setFragmentContext(aContextLocalName, aContextNamespace, + aTargetNode, aQuirks); + +#ifdef DEBUG + if (!aPreventScriptExecution) { + NS_ASSERTION(!aTargetNode->IsInUncomposedDoc(), + "If script execution isn't prevented, " + "the target node must not be in doc."); + NS_ASSERTION( + aTargetNode->NodeType() == nsINode::DOCUMENT_FRAGMENT_NODE, + "If script execution isn't prevented, must parse to DOM fragment."); + } +#endif + + mTreeBuilder->SetPreventScriptExecution(aPreventScriptExecution); + + return Tokenize(aSourceBuffer, doc, true); +} + +nsresult nsHtml5StringParser::ParseDocument( + const nsAString& aSourceBuffer, Document* aTargetDoc, + bool aScriptingEnabledForNoscriptParsing) { + MOZ_ASSERT(!aTargetDoc->GetFirstChild()); + + NS_ENSURE_TRUE(aSourceBuffer.Length() <= INT32_MAX, NS_ERROR_OUT_OF_MEMORY); + + mTreeBuilder->setFragmentContext(nullptr, kNameSpaceID_None, nullptr, false); + + mTreeBuilder->SetPreventScriptExecution(true); + + return Tokenize(aSourceBuffer, aTargetDoc, + aScriptingEnabledForNoscriptParsing); +} + +nsresult nsHtml5StringParser::Tokenize( + const nsAString& aSourceBuffer, Document* aDocument, + bool aScriptingEnabledForNoscriptParsing) { + nsIURI* uri = aDocument->GetDocumentURI(); + + mBuilder->Init(aDocument, uri, nullptr, nullptr); + + mBuilder->SetParser(this); + mBuilder->SetNodeInfoManager(aDocument->NodeInfoManager()); + + // Mark the parser as *not* broken by passing NS_OK + nsresult rv = mBuilder->MarkAsBroken(NS_OK); + + mTreeBuilder->setScriptingEnabled(aScriptingEnabledForNoscriptParsing); + mTreeBuilder->setIsSrcdocDocument(aDocument->IsSrcdocDocument()); + mBuilder->Start(); + mTokenizer->start(); + if (!aSourceBuffer.IsEmpty()) { + bool lastWasCR = false; + nsHtml5DependentUTF16Buffer buffer(aSourceBuffer); + while (buffer.hasMore()) { + buffer.adjust(lastWasCR); + lastWasCR = false; + if (buffer.hasMore()) { + if (!mTokenizer->EnsureBufferSpace(buffer.getLength())) { + rv = mBuilder->MarkAsBroken(NS_ERROR_OUT_OF_MEMORY); + break; + } + lastWasCR = mTokenizer->tokenizeBuffer(&buffer); + if (NS_FAILED(rv = mBuilder->IsBroken())) { + break; + } + } + } + } + if (NS_SUCCEEDED(rv)) { + mTokenizer->eof(); + } + mTokenizer->end(); + mBuilder->Finish(); + mAtomTable.Clear(); + return rv; +} |