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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2001 Dirk Mueller (mueller@kde.org) | 4 * (C) 2001 Dirk Mueller (mueller@kde.org) |
5 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserv
ed. | 5 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserv
ed. |
6 * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org> | 6 * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org> |
7 * | 7 * |
8 * This library is free software; you can redistribute it and/or | 8 * This library is free software; you can redistribute it and/or |
9 * modify it under the terms of the GNU Library General Public | 9 * modify it under the terms of the GNU Library General Public |
10 * License as published by the Free Software Foundation; either | 10 * License as published by the Free Software Foundation; either |
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30 #include "core/dom/Document.h" | 30 #include "core/dom/Document.h" |
31 #include "core/dom/DocumentParserTiming.h" | 31 #include "core/dom/DocumentParserTiming.h" |
32 #include "core/dom/IgnoreDestructiveWriteCountIncrementer.h" | 32 #include "core/dom/IgnoreDestructiveWriteCountIncrementer.h" |
33 #include "core/dom/ScriptLoaderClient.h" | 33 #include "core/dom/ScriptLoaderClient.h" |
34 #include "core/dom/ScriptRunner.h" | 34 #include "core/dom/ScriptRunner.h" |
35 #include "core/dom/ScriptableDocumentParser.h" | 35 #include "core/dom/ScriptableDocumentParser.h" |
36 #include "core/dom/Text.h" | 36 #include "core/dom/Text.h" |
37 #include "core/events/Event.h" | 37 #include "core/events/Event.h" |
38 #include "core/fetch/AccessControlStatus.h" | 38 #include "core/fetch/AccessControlStatus.h" |
39 #include "core/fetch/FetchRequest.h" | 39 #include "core/fetch/FetchRequest.h" |
| 40 #include "core/fetch/MemoryCache.h" |
40 #include "core/fetch/ResourceFetcher.h" | 41 #include "core/fetch/ResourceFetcher.h" |
41 #include "core/fetch/ScriptResource.h" | 42 #include "core/fetch/ScriptResource.h" |
42 #include "core/frame/LocalFrame.h" | 43 #include "core/frame/LocalFrame.h" |
43 #include "core/frame/SubresourceIntegrity.h" | 44 #include "core/frame/SubresourceIntegrity.h" |
44 #include "core/frame/UseCounter.h" | 45 #include "core/frame/UseCounter.h" |
45 #include "core/frame/csp/ContentSecurityPolicy.h" | 46 #include "core/frame/csp/ContentSecurityPolicy.h" |
46 #include "core/html/CrossOriginAttribute.h" | 47 #include "core/html/CrossOriginAttribute.h" |
47 #include "core/html/HTMLScriptElement.h" | 48 #include "core/html/HTMLScriptElement.h" |
48 #include "core/html/imports/HTMLImport.h" | 49 #include "core/html/imports/HTMLImport.h" |
49 #include "core/html/parser/HTMLParserIdioms.h" | 50 #include "core/html/parser/HTMLParserIdioms.h" |
50 #include "core/inspector/ConsoleMessage.h" | 51 #include "core/inspector/ConsoleMessage.h" |
51 #include "core/svg/SVGScriptElement.h" | 52 #include "core/svg/SVGScriptElement.h" |
52 #include "platform/MIMETypeRegistry.h" | 53 #include "platform/MIMETypeRegistry.h" |
53 #include "platform/weborigin/SecurityOrigin.h" | 54 #include "platform/weborigin/SecurityOrigin.h" |
| 55 #include "public/platform/WebCachePolicy.h" |
54 #include "public/platform/WebFrameScheduler.h" | 56 #include "public/platform/WebFrameScheduler.h" |
55 #include "wtf/StdLibExtras.h" | 57 #include "wtf/StdLibExtras.h" |
56 #include "wtf/text/StringBuilder.h" | 58 #include "wtf/text/StringBuilder.h" |
57 #include "wtf/text/StringHash.h" | 59 #include "wtf/text/StringHash.h" |
58 | 60 |
59 namespace blink { | 61 namespace blink { |
60 | 62 |
61 ScriptLoader::ScriptLoader(Element* element, bool parserInserted, bool alreadySt
arted, bool createdDuringDocumentWrite) | 63 ScriptLoader::ScriptLoader(Element* element, bool parserInserted, bool alreadySt
arted, bool createdDuringDocumentWrite) |
62 : m_element(element) | 64 : m_element(element) |
63 , m_startLineNumber(WTF::OrdinalNumber::beforeFirst()) | 65 , m_startLineNumber(WTF::OrdinalNumber::beforeFirst()) |
64 , m_parserInserted(parserInserted) | 66 , m_parserInserted(parserInserted) |
65 , m_isExternalScript(false) | 67 , m_isExternalScript(false) |
66 , m_alreadyStarted(alreadyStarted) | 68 , m_alreadyStarted(alreadyStarted) |
67 , m_haveFiredLoad(false) | 69 , m_haveFiredLoad(false) |
68 , m_willBeParserExecuted(false) | 70 , m_willBeParserExecuted(false) |
69 , m_readyToBeParserExecuted(false) | 71 , m_readyToBeParserExecuted(false) |
70 , m_willExecuteWhenDocumentFinishedParsing(false) | 72 , m_willExecuteWhenDocumentFinishedParsing(false) |
71 , m_forceAsync(!parserInserted) | 73 , m_forceAsync(!parserInserted) |
72 , m_createdDuringDocumentWrite(createdDuringDocumentWrite) | 74 , m_createdDuringDocumentWrite(createdDuringDocumentWrite) |
73 , m_asyncExecType(ScriptRunner::None) | 75 , m_asyncExecType(ScriptRunner::None) |
| 76 , m_documentWriteIntervention(DocumentWriteIntervention::DocumentWriteInterv
entionNone) |
74 { | 77 { |
75 DCHECK(m_element); | 78 DCHECK(m_element); |
76 if (parserInserted && element->document().scriptableDocumentParser() && !ele
ment->document().isInDocumentWrite()) | 79 if (parserInserted && element->document().scriptableDocumentParser() && !ele
ment->document().isInDocumentWrite()) |
77 m_startLineNumber = element->document().scriptableDocumentParser()->line
Number(); | 80 m_startLineNumber = element->document().scriptableDocumentParser()->line
Number(); |
78 } | 81 } |
79 | 82 |
80 ScriptLoader::~ScriptLoader() | 83 ScriptLoader::~ScriptLoader() |
81 { | 84 { |
82 } | 85 } |
83 | 86 |
84 DEFINE_TRACE(ScriptLoader) | 87 DEFINE_TRACE(ScriptLoader) |
85 { | 88 { |
86 visitor->trace(m_element); | 89 visitor->trace(m_element); |
87 visitor->trace(m_resource); | 90 visitor->trace(m_resource); |
88 visitor->trace(m_pendingScript); | 91 visitor->trace(m_pendingScript); |
89 ScriptResourceClient::trace(visitor); | 92 ScriptResourceClient::trace(visitor); |
90 } | 93 } |
91 | 94 |
| 95 void ScriptLoader::setFetchDocWrittenScriptDeferIdle() |
| 96 { |
| 97 DCHECK(!m_createdDuringDocumentWrite); |
| 98 m_documentWriteIntervention = DocumentWriteIntervention::FetchDocWrittenScri
ptDeferIdle; |
| 99 } |
| 100 |
92 void ScriptLoader::didNotifySubtreeInsertionsToDocument() | 101 void ScriptLoader::didNotifySubtreeInsertionsToDocument() |
93 { | 102 { |
94 if (!m_parserInserted) | 103 if (!m_parserInserted) |
95 prepareScript(); // FIXME: Provide a real starting line number here. | 104 prepareScript(); // FIXME: Provide a real starting line number here. |
96 } | 105 } |
97 | 106 |
98 void ScriptLoader::childrenChanged() | 107 void ScriptLoader::childrenChanged() |
99 { | 108 { |
100 if (!m_parserInserted && m_element->isConnected()) | 109 if (!m_parserInserted && m_element->isConnected()) |
101 prepareScript(); // FIXME: Provide a real starting line number here. | 110 prepareScript(); // FIXME: Provide a real starting line number here. |
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231 | 240 |
232 if (!client->charsetAttributeValue().isEmpty()) | 241 if (!client->charsetAttributeValue().isEmpty()) |
233 m_characterEncoding = client->charsetAttributeValue(); | 242 m_characterEncoding = client->charsetAttributeValue(); |
234 else | 243 else |
235 m_characterEncoding = elementDocument.characterSet(); | 244 m_characterEncoding = elementDocument.characterSet(); |
236 | 245 |
237 if (client->hasSourceAttribute()) { | 246 if (client->hasSourceAttribute()) { |
238 FetchRequest::DeferOption defer = FetchRequest::NoDefer; | 247 FetchRequest::DeferOption defer = FetchRequest::NoDefer; |
239 if (!m_parserInserted || client->asyncAttributeValue() || client->deferA
ttributeValue()) | 248 if (!m_parserInserted || client->asyncAttributeValue() || client->deferA
ttributeValue()) |
240 defer = FetchRequest::LazyLoad; | 249 defer = FetchRequest::LazyLoad; |
| 250 if (m_documentWriteIntervention == DocumentWriteIntervention::FetchDocWr
ittenScriptDeferIdle) |
| 251 defer = FetchRequest::IdleLoad; |
241 if (!fetchScript(client->sourceAttributeValue(), defer)) | 252 if (!fetchScript(client->sourceAttributeValue(), defer)) |
242 return false; | 253 return false; |
243 } | 254 } |
244 | 255 |
| 256 // Since the asynchronous, low priority fetch for doc.written blocked |
| 257 // script is not for execution, return early from here. Watch for its |
| 258 // completion to be able to remove it from the memory cache. |
| 259 if (m_documentWriteIntervention == DocumentWriteIntervention::FetchDocWritte
nScriptDeferIdle) { |
| 260 m_pendingScript = PendingScript::create(m_element, m_resource.get()); |
| 261 m_pendingScript->watchForLoad(this); |
| 262 return true; |
| 263 } |
| 264 |
245 if (client->hasSourceAttribute() && client->deferAttributeValue() && m_parse
rInserted && !client->asyncAttributeValue()) { | 265 if (client->hasSourceAttribute() && client->deferAttributeValue() && m_parse
rInserted && !client->asyncAttributeValue()) { |
246 m_willExecuteWhenDocumentFinishedParsing = true; | 266 m_willExecuteWhenDocumentFinishedParsing = true; |
247 m_willBeParserExecuted = true; | 267 m_willBeParserExecuted = true; |
248 } else if (client->hasSourceAttribute() && m_parserInserted && !client->asyn
cAttributeValue()) { | 268 } else if (client->hasSourceAttribute() && m_parserInserted && !client->asyn
cAttributeValue()) { |
249 m_willBeParserExecuted = true; | 269 m_willBeParserExecuted = true; |
250 } else if (!client->hasSourceAttribute() && m_parserInserted && !elementDocu
ment.isScriptExecutionReady()) { | 270 } else if (!client->hasSourceAttribute() && m_parserInserted && !elementDocu
ment.isScriptExecutionReady()) { |
251 m_willBeParserExecuted = true; | 271 m_willBeParserExecuted = true; |
252 m_readyToBeParserExecuted = true; | 272 m_readyToBeParserExecuted = true; |
253 } else if (client->hasSourceAttribute() && !client->asyncAttributeValue() &&
!m_forceAsync) { | 273 } else if (client->hasSourceAttribute() && !client->asyncAttributeValue() &&
!m_forceAsync) { |
254 m_pendingScript = PendingScript::create(m_element, m_resource.get()); | 274 m_pendingScript = PendingScript::create(m_element, m_resource.get()); |
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310 } | 330 } |
311 request.setDefer(defer); | 331 request.setDefer(defer); |
312 | 332 |
313 String integrityAttr = m_element->fastGetAttribute(HTMLNames::integrityA
ttr); | 333 String integrityAttr = m_element->fastGetAttribute(HTMLNames::integrityA
ttr); |
314 if (!integrityAttr.isEmpty()) { | 334 if (!integrityAttr.isEmpty()) { |
315 IntegrityMetadataSet metadataSet; | 335 IntegrityMetadataSet metadataSet; |
316 SubresourceIntegrity::parseIntegrityAttribute(integrityAttr, metadat
aSet, elementDocument); | 336 SubresourceIntegrity::parseIntegrityAttribute(integrityAttr, metadat
aSet, elementDocument); |
317 request.setIntegrityMetadata(metadataSet); | 337 request.setIntegrityMetadata(metadataSet); |
318 } | 338 } |
319 | 339 |
| 340 if (m_documentWriteIntervention == DocumentWriteIntervention::FetchDocWr
ittenScriptDeferIdle) { |
| 341 request.mutableResourceRequest().setHTTPHeaderField("Intervention",
"<https://www.chromestatus.com/feature/5718547946799104>"); |
| 342 } |
| 343 |
320 m_resource = ScriptResource::fetch(request, elementDocument->fetcher()); | 344 m_resource = ScriptResource::fetch(request, elementDocument->fetcher()); |
321 | 345 |
322 m_isExternalScript = true; | 346 m_isExternalScript = true; |
323 } | 347 } |
324 | 348 |
325 if (m_resource) | 349 if (!m_resource) { |
326 return true; | 350 dispatchErrorEvent(); |
| 351 return false; |
| 352 } |
327 | 353 |
328 dispatchErrorEvent(); | 354 if (m_createdDuringDocumentWrite && m_resource->resourceRequest().getCachePo
licy() == WebCachePolicy::ReturnCacheDataDontLoad) { |
329 return false; | 355 m_documentWriteIntervention = DocumentWriteIntervention::DoNotFetchDocWr
ittenScript; |
| 356 } |
| 357 |
| 358 return true; |
330 } | 359 } |
331 | 360 |
332 bool isHTMLScriptLoader(Element* element) | 361 bool isHTMLScriptLoader(Element* element) |
333 { | 362 { |
334 DCHECK(element); | 363 DCHECK(element); |
335 return isHTMLScriptElement(*element); | 364 return isHTMLScriptElement(*element); |
336 } | 365 } |
337 | 366 |
338 bool isSVGScriptLoader(Element* element) | 367 bool isSVGScriptLoader(Element* element) |
339 { | 368 { |
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475 dispatchLoadEvent(); | 504 dispatchLoadEvent(); |
476 else | 505 else |
477 dispatchErrorEvent(); | 506 dispatchErrorEvent(); |
478 } | 507 } |
479 m_resource = nullptr; | 508 m_resource = nullptr; |
480 } | 509 } |
481 | 510 |
482 void ScriptLoader::notifyFinished(Resource* resource) | 511 void ScriptLoader::notifyFinished(Resource* resource) |
483 { | 512 { |
484 DCHECK(!m_willBeParserExecuted); | 513 DCHECK(!m_willBeParserExecuted); |
| 514 |
| 515 // We do not need this script in the memory cache. The primary goals of |
| 516 // sending this fetch request are to let the third party server know |
| 517 // about the document.write scripts intervention and populate the http |
| 518 // cache for subsequent uses. |
| 519 if (m_documentWriteIntervention == DocumentWriteIntervention::FetchDocWritte
nScriptDeferIdle) { |
| 520 memoryCache()->remove(resource); |
| 521 m_pendingScript->stopWatchingForLoad(); |
| 522 return; |
| 523 } |
| 524 |
485 DCHECK(m_asyncExecType != ScriptRunner::None); | 525 DCHECK(m_asyncExecType != ScriptRunner::None); |
486 | 526 |
487 Document* contextDocument = m_element->document().contextDocument(); | 527 Document* contextDocument = m_element->document().contextDocument(); |
488 if (!contextDocument) { | 528 if (!contextDocument) { |
489 detach(); | 529 detach(); |
490 return; | 530 return; |
491 } | 531 } |
492 | 532 |
493 ASSERT_UNUSED(resource, resource == m_resource); | 533 ASSERT_UNUSED(resource, resource == m_resource); |
494 | 534 |
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543 if (isHTMLScriptLoader(element)) | 583 if (isHTMLScriptLoader(element)) |
544 return toHTMLScriptElement(element)->loader(); | 584 return toHTMLScriptElement(element)->loader(); |
545 | 585 |
546 if (isSVGScriptLoader(element)) | 586 if (isSVGScriptLoader(element)) |
547 return toSVGScriptElement(element)->loader(); | 587 return toSVGScriptElement(element)->loader(); |
548 | 588 |
549 return 0; | 589 return 0; |
550 } | 590 } |
551 | 591 |
552 } // namespace blink | 592 } // namespace blink |
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