зеркало из https://github.com/mozilla/gecko-dev.git
Backed out changeset ef258af45592 (bug 1429535) for test_bug704320_preload.html timeouts
This commit is contained in:
Jon Coppeard
Родитель
3f30371b5a
Коммит
2219c13082
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@ -1286,180 +1286,199 @@ ScriptLoader::ProcessScriptElement(nsIScriptElement* aElement)
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}
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// Step 15. and later in the HTML5 spec
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nsresult rv = NS_OK;
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RefPtr<ScriptLoadRequest> request;
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mozilla::net::ReferrerPolicy ourRefPolicy = mDocument->GetReferrerPolicy();
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if (aElement->GetScriptExternal()) {
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return ProcessExternalScript(aElement, scriptKind, type, scriptContent);
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}
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return ProcessInlineScript(aElement, scriptKind);
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}
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bool
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ScriptLoader::ProcessExternalScript(nsIScriptElement* aElement,
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ScriptKind aScriptKind,
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nsAutoString aTypeAttr,
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nsIContent* aScriptContent)
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{
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nsCOMPtr<nsIURI> scriptURI = aElement->GetScriptURI();
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if (!scriptURI) {
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// Asynchronously report the failure to create a URI object
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NS_DispatchToCurrentThread(
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NewRunnableMethod("nsIScriptElement::FireErrorEvent",
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aElement,
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&nsIScriptElement::FireErrorEvent));
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return false;
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}
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RefPtr<ScriptLoadRequest> request = LookupPreloadRequest(aElement, aScriptKind);
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if (request && NS_FAILED(CheckContentPolicy(mDocument, aElement, request->mURI,
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aTypeAttr, false))) {
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// Probably plans have changed; even though the preload was allowed seems
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// like the actual load is not; let's cancel the preload request.
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request->Cancel();
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return false;
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}
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if (request) {
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// Use the preload request.
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request->mElement = aElement;
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// It's possible these attributes changed since we started the preload so
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// update them here.
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request->SetScriptMode(aElement->GetScriptDeferred(),
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aElement->GetScriptAsync());
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} else {
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// No usable preload found.
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SRIMetadata sriMetadata;
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{
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nsAutoString integrity;
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aScriptContent->AsElement()->GetAttr(kNameSpaceID_None,
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nsGkAtoms::integrity,
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integrity);
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GetSRIMetadata(integrity, &sriMetadata);
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}
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nsCOMPtr<nsIPrincipal> principal = aElement->GetScriptURITriggeringPrincipal();
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if (!principal) {
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principal = aScriptContent->NodePrincipal();
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}
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CORSMode ourCORSMode = aElement->GetCORSMode();
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mozilla::net::ReferrerPolicy ourRefPolicy = mDocument->GetReferrerPolicy();
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request = CreateLoadRequest(aScriptKind, scriptURI, aElement,
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ourCORSMode, sriMetadata, ourRefPolicy);
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request->mTriggeringPrincipal = Move(principal);
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request->mIsInline = false;
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request->SetScriptMode(aElement->GetScriptDeferred(),
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aElement->GetScriptAsync());
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// keep request->mScriptFromHead to false so we don't treat non preloaded
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// scripts as blockers for full page load. See bug 792438.
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nsresult rv = StartLoad(request);
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if (NS_FAILED(rv)) {
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ReportErrorToConsole(request, rv);
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// Asynchronously report the load failure
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// external script
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nsCOMPtr<nsIURI> scriptURI = aElement->GetScriptURI();
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if (!scriptURI) {
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// Asynchronously report the failure to create a URI object
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NS_DispatchToCurrentThread(
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NewRunnableMethod("nsIScriptElement::FireErrorEvent",
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aElement,
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&nsIScriptElement::FireErrorEvent));
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return false;
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}
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}
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// Should still be in loading stage of script.
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NS_ASSERTION(!request->InCompilingStage(),
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"Request should not yet be in compiling stage.");
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// Double-check that the preload matches what we're asked to load now.
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CORSMode ourCORSMode = aElement->GetCORSMode();
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nsTArray<PreloadInfo>::index_type i =
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mPreloads.IndexOf(scriptURI.get(), 0, PreloadURIComparator());
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if (i != nsTArray<PreloadInfo>::NoIndex) {
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// preloaded
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// note that a script-inserted script can steal a preload!
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request = mPreloads[i].mRequest;
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request->mElement = aElement;
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nsString preloadCharset(mPreloads[i].mCharset);
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mPreloads.RemoveElementAt(i);
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if (request->IsAsyncScript()) {
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AddAsyncRequest(request);
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if (request->IsReadyToRun()) {
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// The script is available already. Run it ASAP when the event
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// loop gets a chance to spin.
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// Double-check that the charset the preload used is the same as
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// the charset we have now.
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nsAutoString elementCharset;
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aElement->GetScriptCharset(elementCharset);
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if (elementCharset.Equals(preloadCharset) &&
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ourCORSMode == request->mCORSMode &&
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ourRefPolicy == request->mReferrerPolicy &&
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scriptKind == request->mKind) {
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rv = CheckContentPolicy(mDocument, aElement, request->mURI, type, false);
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if (NS_FAILED(rv)) {
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// probably plans have changed; even though the preload was allowed seems
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// like the actual load is not; let's cancel the preload request.
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request->Cancel();
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return false;
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}
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} else {
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// Drop the preload
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request = nullptr;
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}
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}
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// KVKV TODO: Instead of processing immediately, try off-thread-parsing
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// it and only schedule a pending ProcessRequest if that fails.
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if (request) {
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// Use a preload request.
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// It's possible these attributes changed since we started the preload so
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// update them here.
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request->SetScriptMode(aElement->GetScriptDeferred(),
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aElement->GetScriptAsync());
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} else {
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// No usable preload found.
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SRIMetadata sriMetadata;
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{
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nsAutoString integrity;
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scriptContent->AsElement()->GetAttr(kNameSpaceID_None,
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nsGkAtoms::integrity,
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integrity);
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if (!integrity.IsEmpty()) {
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MOZ_LOG(SRILogHelper::GetSriLog(), mozilla::LogLevel::Debug,
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("ScriptLoader::ProcessScriptElement, integrity=%s",
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NS_ConvertUTF16toUTF8(integrity).get()));
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nsAutoCString sourceUri;
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if (mDocument->GetDocumentURI()) {
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mDocument->GetDocumentURI()->GetAsciiSpec(sourceUri);
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}
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SRICheck::IntegrityMetadata(integrity, sourceUri, mReporter,
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&sriMetadata);
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}
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}
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nsCOMPtr<nsIPrincipal> principal = aElement->GetScriptURITriggeringPrincipal();
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if (!principal) {
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principal = scriptContent->NodePrincipal();
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}
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request = CreateLoadRequest(scriptKind, scriptURI, aElement, ourCORSMode,
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sriMetadata, ourRefPolicy);
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request->mTriggeringPrincipal = Move(principal);
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request->mIsInline = false;
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request->SetScriptMode(aElement->GetScriptDeferred(),
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aElement->GetScriptAsync());
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// keep request->mScriptFromHead to false so we don't treat non preloaded
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// scripts as blockers for full page load. See bug 792438.
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rv = StartLoad(request);
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if (NS_FAILED(rv)) {
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ReportErrorToConsole(request, rv);
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// Asynchronously report the load failure
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NS_DispatchToCurrentThread(
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NewRunnableMethod("nsIScriptElement::FireErrorEvent",
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aElement,
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&nsIScriptElement::FireErrorEvent));
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return false;
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}
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}
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// Should still be in loading stage of script.
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NS_ASSERTION(!request->InCompilingStage(),
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"Request should not yet be in compiling stage.");
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if (request->IsAsyncScript()) {
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AddAsyncRequest(request);
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if (request->IsReadyToRun()) {
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// The script is available already. Run it ASAP when the event
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// loop gets a chance to spin.
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// KVKV TODO: Instead of processing immediately, try off-thread-parsing
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// it and only schedule a pending ProcessRequest if that fails.
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ProcessPendingRequestsAsync();
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}
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return false;
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}
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if (!aElement->GetParserCreated()) {
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// Violate the HTML5 spec in order to make LABjs and the "order" plug-in
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// for RequireJS work with their Gecko-sniffed code path. See
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// http://lists.w3.org/Archives/Public/public-html/2010Oct/0088.html
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request->mIsNonAsyncScriptInserted = true;
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mNonAsyncExternalScriptInsertedRequests.AppendElement(request);
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if (request->IsReadyToRun()) {
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// The script is available already. Run it ASAP when the event
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// loop gets a chance to spin.
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ProcessPendingRequestsAsync();
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}
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return false;
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}
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// we now have a parser-inserted request that may or may not be still
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// loading
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if (request->IsDeferredScript()) {
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// We don't want to run this yet.
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// If we come here, the script is a parser-created script and it has
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// the defer attribute but not the async attribute. Since a
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// a parser-inserted script is being run, we came here by the parser
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// running the script, which means the parser is still alive and the
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// parse is ongoing.
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NS_ASSERTION(mDocument->GetCurrentContentSink() ||
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aElement->GetParserCreated() == FROM_PARSER_XSLT,
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"Non-XSLT Defer script on a document without an active parser; bug 592366.");
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AddDeferRequest(request);
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return false;
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}
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if (aElement->GetParserCreated() == FROM_PARSER_XSLT) {
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// Need to maintain order for XSLT-inserted scripts
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NS_ASSERTION(!mParserBlockingRequest,
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"Parser-blocking scripts and XSLT scripts in the same doc!");
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request->mIsXSLT = true;
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mXSLTRequests.AppendElement(request);
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if (request->IsReadyToRun()) {
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// The script is available already. Run it ASAP when the event
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// loop gets a chance to spin.
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ProcessPendingRequestsAsync();
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}
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return true;
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}
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if (request->IsReadyToRun() && ReadyToExecuteParserBlockingScripts()) {
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// The request has already been loaded and there are no pending style
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// sheets. If the script comes from the network stream, cheat for
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// performance reasons and avoid a trip through the event loop.
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if (aElement->GetParserCreated() == FROM_PARSER_NETWORK) {
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return ProcessRequest(request) == NS_ERROR_HTMLPARSER_BLOCK;
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}
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// Otherwise, we've got a document.written script, make a trip through
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// the event loop to hide the preload effects from the scripts on the
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// Web page.
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NS_ASSERTION(!mParserBlockingRequest,
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"There can be only one parser-blocking script at a time");
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NS_ASSERTION(mXSLTRequests.isEmpty(),
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"Parser-blocking scripts and XSLT scripts in the same doc!");
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mParserBlockingRequest = request;
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ProcessPendingRequestsAsync();
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return true;
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}
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return false;
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}
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if (!aElement->GetParserCreated()) {
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// Violate the HTML5 spec in order to make LABjs and the "order" plug-in
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// for RequireJS work with their Gecko-sniffed code path. See
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// http://lists.w3.org/Archives/Public/public-html/2010Oct/0088.html
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request->mIsNonAsyncScriptInserted = true;
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mNonAsyncExternalScriptInsertedRequests.AppendElement(request);
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if (request->IsReadyToRun()) {
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// The script is available already. Run it ASAP when the event
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// loop gets a chance to spin.
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ProcessPendingRequestsAsync();
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}
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return false;
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}
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// we now have a parser-inserted request that may or may not be still
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// loading
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if (request->IsDeferredScript()) {
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// We don't want to run this yet.
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// If we come here, the script is a parser-created script and it has
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// the defer attribute but not the async attribute. Since a
|
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// a parser-inserted script is being run, we came here by the parser
|
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// running the script, which means the parser is still alive and the
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// parse is ongoing.
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NS_ASSERTION(mDocument->GetCurrentContentSink() ||
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aElement->GetParserCreated() == FROM_PARSER_XSLT,
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"Non-XSLT Defer script on a document without an active parser; bug 592366.");
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AddDeferRequest(request);
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return false;
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}
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if (aElement->GetParserCreated() == FROM_PARSER_XSLT) {
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// Need to maintain order for XSLT-inserted scripts
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NS_ASSERTION(!mParserBlockingRequest,
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"Parser-blocking scripts and XSLT scripts in the same doc!");
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request->mIsXSLT = true;
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mXSLTRequests.AppendElement(request);
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if (request->IsReadyToRun()) {
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// The script is available already. Run it ASAP when the event
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// loop gets a chance to spin.
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ProcessPendingRequestsAsync();
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}
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return true;
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}
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|
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if (request->IsReadyToRun() && ReadyToExecuteParserBlockingScripts()) {
|
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// The request has already been loaded and there are no pending style
|
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// sheets. If the script comes from the network stream, cheat for
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// performance reasons and avoid a trip through the event loop.
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if (aElement->GetParserCreated() == FROM_PARSER_NETWORK) {
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return ProcessRequest(request) == NS_ERROR_HTMLPARSER_BLOCK;
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}
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// Otherwise, we've got a document.written script, make a trip through
|
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// the event loop to hide the preload effects from the scripts on the
|
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// Web page.
|
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// The script hasn't loaded yet or there's a style sheet blocking it.
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// The script will be run when it loads or the style sheet loads.
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NS_ASSERTION(!mParserBlockingRequest,
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"There can be only one parser-blocking script at a time");
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NS_ASSERTION(mXSLTRequests.isEmpty(),
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"Parser-blocking scripts and XSLT scripts in the same doc!");
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mParserBlockingRequest = request;
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ProcessPendingRequestsAsync();
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return true;
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}
|
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|
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// The script hasn't loaded yet or there's a style sheet blocking it.
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// The script will be run when it loads or the style sheet loads.
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NS_ASSERTION(!mParserBlockingRequest,
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"There can be only one parser-blocking script at a time");
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NS_ASSERTION(mXSLTRequests.isEmpty(),
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"Parser-blocking scripts and XSLT scripts in the same doc!");
|
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mParserBlockingRequest = request;
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return true;
|
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}
|
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|
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bool
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ScriptLoader::ProcessInlineScript(nsIScriptElement* aElement,
|
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ScriptKind aScriptKind)
|
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{
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// inline script
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// Is this document sandboxed without 'allow-scripts'?
|
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if (mDocument->HasScriptsBlockedBySandbox()) {
|
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return false;
|
||||
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@ -1472,15 +1491,14 @@ ScriptLoader::ProcessInlineScript(nsIScriptElement* aElement,
|
|||
|
||||
// Inline classic scripts ignore their CORS mode and are always CORS_NONE.
|
||||
CORSMode corsMode = CORS_NONE;
|
||||
if (aScriptKind == ScriptKind::eModule) {
|
||||
if (scriptKind == ScriptKind::eModule) {
|
||||
corsMode = aElement->GetCORSMode();
|
||||
}
|
||||
|
||||
RefPtr<ScriptLoadRequest> request =
|
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CreateLoadRequest(aScriptKind, mDocument->GetDocumentURI(), aElement,
|
||||
corsMode,
|
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SRIMetadata(), // SRI doesn't apply
|
||||
mDocument->GetReferrerPolicy());
|
||||
request = CreateLoadRequest(scriptKind, mDocument->GetDocumentURI(), aElement,
|
||||
corsMode,
|
||||
SRIMetadata(), // SRI doesn't apply
|
||||
ourRefPolicy);
|
||||
request->mIsInline = true;
|
||||
request->mTriggeringPrincipal = mDocument->NodePrincipal();
|
||||
request->mLineNo = aElement->GetScriptLineNumber();
|
||||
|
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@ -1556,59 +1574,6 @@ ScriptLoader::ProcessInlineScript(nsIScriptElement* aElement,
|
|||
return ProcessRequest(request) == NS_ERROR_HTMLPARSER_BLOCK;
|
||||
}
|
||||
|
||||
ScriptLoadRequest*
|
||||
ScriptLoader::LookupPreloadRequest(nsIScriptElement* aElement,
|
||||
ScriptKind aScriptKind)
|
||||
{
|
||||
nsTArray<PreloadInfo>::index_type i =
|
||||
mPreloads.IndexOf(aElement->GetScriptURI(), 0, PreloadURIComparator());
|
||||
if (i == nsTArray<PreloadInfo>::NoIndex) {
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
// Found preloaded request. Note that a script-inserted script can steal a
|
||||
// preload!
|
||||
RefPtr<ScriptLoadRequest> request = mPreloads[i].mRequest;
|
||||
nsString preloadCharset(mPreloads[i].mCharset);
|
||||
mPreloads.RemoveElementAt(i);
|
||||
|
||||
// Double-check that the charset the preload used is the same as the charset
|
||||
// we have now.
|
||||
nsAutoString elementCharset;
|
||||
aElement->GetScriptCharset(elementCharset);
|
||||
if (!elementCharset.Equals(preloadCharset) ||
|
||||
aElement->GetCORSMode() != request->mCORSMode ||
|
||||
mDocument->GetReferrerPolicy() != request->mReferrerPolicy ||
|
||||
aScriptKind != request->mKind) {
|
||||
// Drop the preload.
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
return request;
|
||||
}
|
||||
|
||||
void
|
||||
ScriptLoader::GetSRIMetadata(const nsAString& aIntegrityAttr,
|
||||
SRIMetadata *aMetadataOut)
|
||||
{
|
||||
MOZ_ASSERT(aMetadataOut->IsEmpty());
|
||||
|
||||
if (aIntegrityAttr.IsEmpty()) {
|
||||
return;
|
||||
}
|
||||
|
||||
MOZ_LOG(SRILogHelper::GetSriLog(), mozilla::LogLevel::Debug,
|
||||
("ScriptLoader::GetSRIMetadata, integrity=%s",
|
||||
NS_ConvertUTF16toUTF8(aIntegrityAttr).get()));
|
||||
|
||||
nsAutoCString sourceUri;
|
||||
if (mDocument->GetDocumentURI()) {
|
||||
mDocument->GetDocumentURI()->GetAsciiSpec(sourceUri);
|
||||
}
|
||||
SRICheck::IntegrityMetadata(aIntegrityAttr, sourceUri, mReporter,
|
||||
aMetadataOut);
|
||||
}
|
||||
|
||||
namespace {
|
||||
|
||||
class NotifyOffThreadScriptLoadCompletedRunnable : public Runnable
|
||||
|
|
@ -3164,7 +3129,16 @@ ScriptLoader::PreloadURI(nsIURI* aURI, const nsAString& aCharset,
|
|||
}
|
||||
|
||||
SRIMetadata sriMetadata;
|
||||
GetSRIMetadata(aIntegrity, &sriMetadata);
|
||||
if (!aIntegrity.IsEmpty()) {
|
||||
MOZ_LOG(SRILogHelper::GetSriLog(), mozilla::LogLevel::Debug,
|
||||
("ScriptLoader::PreloadURI, integrity=%s",
|
||||
NS_ConvertUTF16toUTF8(aIntegrity).get()));
|
||||
nsAutoCString sourceUri;
|
||||
if (mDocument->GetDocumentURI()) {
|
||||
mDocument->GetDocumentURI()->GetAsciiSpec(sourceUri);
|
||||
}
|
||||
SRICheck::IntegrityMetadata(aIntegrity, sourceUri, mReporter, &sriMetadata);
|
||||
}
|
||||
|
||||
RefPtr<ScriptLoadRequest> request =
|
||||
CreateLoadRequest(ScriptKind::eClassic, aURI, nullptr,
|
||||
|
|
|
|||
|
|
@ -357,20 +357,6 @@ private:
|
|||
void ContinueParserAsync(ScriptLoadRequest* aParserBlockingRequest);
|
||||
|
||||
|
||||
bool ProcessExternalScript(nsIScriptElement* aElement,
|
||||
ScriptKind aScriptKind,
|
||||
nsAutoString aTypeAttr,
|
||||
nsIContent* aScriptContent);
|
||||
|
||||
bool ProcessInlineScript(nsIScriptElement* aElement,
|
||||
ScriptKind aScriptKind);
|
||||
|
||||
ScriptLoadRequest* LookupPreloadRequest(nsIScriptElement* aElement,
|
||||
ScriptKind aScriptKind);
|
||||
|
||||
void GetSRIMetadata(const nsAString& aIntegrityAttr,
|
||||
SRIMetadata *aMetadataOut);
|
||||
|
||||
/**
|
||||
* Helper function to check the content policy for a given request.
|
||||
*/
|
||||
|
|
|
|||
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