| File: | Source/WebKit/UIProcess/WebBackForwardList.cpp |
| Warning: | line 357, column 5 A function 'forwardListCountForAPI' has [[clang::annotate_type("webkit.nodelete")]] but it contains code that could destruct an object |
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| 1 | /* |
| 2 | * Copyright (C) 2010 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 "WebBackForwardList.h" |
| 28 | |
| 29 | #include "APIArray.h" |
| 30 | #include "BrowsingContextGroup.h" |
| 31 | #include "LoadedWebArchive.h" |
| 32 | #include "Logging.h" |
| 33 | #include "SessionState.h" |
| 34 | #include "WebBackForwardCache.h" |
| 35 | #include "WebBackForwardListCounts.h" |
| 36 | #include "WebBackForwardListFrameItem.h" |
| 37 | #include "WebBackForwardListSwiftUtilities.h" |
| 38 | #include "WebFrameProxy.h" |
| 39 | #include "WebInspectorUtilities.h" |
| 40 | #include "WebPageProxy.h" |
| 41 | #include <WebCore/DiagnosticLoggingClient.h> |
| 42 | #include <WebCore/DiagnosticLoggingKeys.h> |
| 43 | #include <wtf/Borrow.h> |
| 44 | #include <wtf/DebugUtilities.h> |
| 45 | #include <wtf/HexNumber.h> |
| 46 | #include <wtf/text/StringBuilder.h> |
| 47 | |
| 48 | #if PLATFORM(COCOA)(defined 1 && 1) |
| 49 | #include <wtf/cocoa/RuntimeApplicationChecksCocoa.h> |
| 50 | #endif |
| 51 | |
| 52 | // FIXME: https://bugs.webkit.org/show_bug.cgi?id=306415 |
| 53 | #include "WebKit-Swift.h" |
| 54 | |
| 55 | namespace WebKit { |
| 56 | using namespace WebCore; |
| 57 | |
| 58 | static inline void setBackForwardItemIdentifiers(FrameState& frameState, BackForwardItemIdentifier itemID) |
| 59 | { |
| 60 | frameState.itemID = itemID; |
| 61 | frameState.frameItemID = BackForwardFrameItemIdentifier::generate(); |
| 62 | for (auto& child : frameState.children) |
| 63 | setBackForwardItemIdentifiers(child, itemID); |
| 64 | } |
| 65 | |
| 66 | #if !ENABLE(BACK_FORWARD_LIST_SWIFT)(defined 0 && 0) |
| 67 | |
| 68 | static bool shouldSkipItemsWithoutUserGestureForWebKitAPI() |
| 69 | { |
| 70 | #if PLATFORM(COCOA)(defined 1 && 1) |
| 71 | return linkedOnOrAfterSDKWithBehavior(SDKAlignedBehavior::AllBackForwardItemsWithoutUserGestureInvisibleToUI); |
| 72 | #endif |
| 73 | return false; |
| 74 | } |
| 75 | |
| 76 | static const unsigned DefaultCapacity = 100; |
| 77 | |
| 78 | WebBackForwardList::WebBackForwardList(WebPageProxy& page) |
| 79 | : m_page(&page) |
| 80 | { |
| 81 | LOG(BackForward, "(Back/Forward) Created WebBackForwardList %p", this)((void)0); |
| 82 | } |
| 83 | |
| 84 | WebBackForwardList::~WebBackForwardList() |
| 85 | { |
| 86 | LOG(BackForward, "(Back/Forward) Destroying WebBackForwardList %p", this)((void)0); |
| 87 | |
| 88 | // A WebBackForwardList should never be destroyed unless it's associated page has been closed or is invalid. |
| 89 | ASSERT((!m_page && !m_currentIndex) || !m_page->hasRunningProcess())((void)0); |
| 90 | } |
| 91 | |
| 92 | WebBackForwardListItem* WebBackForwardList::itemForID(BackForwardItemIdentifier identifier) |
| 93 | { |
| 94 | if (!m_page) |
| 95 | return nullptr; |
| 96 | |
| 97 | ASSERT(!WebBackForwardListItem::itemForID(identifier) || WebBackForwardListItem::itemForID(identifier)->pageID() == m_page->identifier())((void)0); |
| 98 | return WebBackForwardListItem::itemForID(identifier); |
| 99 | } |
| 100 | |
| 101 | void WebBackForwardList::pageClosed() |
| 102 | { |
| 103 | LOG(BackForward, "(Back/Forward) WebBackForwardList %p had its page closed with current size %zu", this, m_entries.size())((void)0); |
| 104 | |
| 105 | // We should have always started out with an m_page and we should never close the page twice. |
| 106 | ASSERT(m_page)((void)0); |
| 107 | |
| 108 | if (m_page) { |
| 109 | size_t size = m_entries.size(); |
| 110 | for (size_t i = 0; i < size; ++i) |
| 111 | didRemoveItem(m_entries[i]); |
| 112 | } |
| 113 | |
| 114 | m_page.clear(); |
| 115 | m_entries.clear(); |
| 116 | m_currentIndex = std::nullopt; |
| 117 | } |
| 118 | |
| 119 | void WebBackForwardList::addItem(Ref<WebBackForwardListItem>&& newItem) |
| 120 | { |
| 121 | ASSERT(!m_currentIndex || *m_currentIndex < m_entries.size())((void)0); |
| 122 | |
| 123 | RefPtr page = m_page.get(); |
| 124 | if (!page) |
| 125 | return; |
| 126 | |
| 127 | Vector<Ref<WebBackForwardListItem>> removedItems; |
| 128 | |
| 129 | if (m_currentIndex) { |
| 130 | page->recordAutomaticNavigationSnapshot(); |
| 131 | |
| 132 | // Toss everything in the forward list. |
| 133 | unsigned targetSize = *m_currentIndex + 1; |
| 134 | removedItems.reserveInitialCapacity(m_entries.size() - targetSize); |
| 135 | while (m_entries.size() > targetSize) { |
| 136 | didRemoveItem(m_entries.last()); |
| 137 | removedItems.append(WTF::move(m_entries.last())); |
| 138 | m_entries.removeLast(); |
| 139 | } |
| 140 | |
| 141 | // Toss the first item if the list is getting too big, as long as we're not using it |
| 142 | // (or even if we are, if we only want 1 entry). |
| 143 | if (m_entries.size() >= DefaultCapacity && (*m_currentIndex)) { |
| 144 | didRemoveItem(m_entries[0]); |
| 145 | removedItems.append(WTF::move(m_entries[0])); |
| 146 | m_entries.removeAt(0); |
| 147 | |
| 148 | if (m_entries.isEmpty()) |
| 149 | m_currentIndex = std::nullopt; |
| 150 | else |
| 151 | --*m_currentIndex; |
| 152 | } |
| 153 | } else { |
| 154 | // If we have no current item index we should also not have any entries. |
| 155 | ASSERT(m_entries.isEmpty())((void)0); |
| 156 | |
| 157 | // But just in case it does happen in practice we'll get back in to a consistent state now before adding the new item. |
| 158 | size_t size = m_entries.size(); |
| 159 | for (size_t i = 0; i < size; ++i) { |
| 160 | didRemoveItem(m_entries[i]); |
| 161 | removedItems.append(WTF::move(m_entries[i])); |
| 162 | } |
| 163 | m_entries.clear(); |
| 164 | } |
| 165 | |
| 166 | bool shouldKeepCurrentItem = true; |
| 167 | |
| 168 | if (!m_currentIndex) { |
| 169 | ASSERT(m_entries.isEmpty())((void)0); |
| 170 | m_currentIndex = 0; |
| 171 | } else { |
| 172 | shouldKeepCurrentItem = page->shouldKeepCurrentBackForwardListItemInList(m_entries[*m_currentIndex]); |
| 173 | if (shouldKeepCurrentItem) |
| 174 | ++*m_currentIndex; |
| 175 | } |
| 176 | |
| 177 | auto* newItemPtr = newItem.ptr(); |
| 178 | if (!shouldKeepCurrentItem) { |
| 179 | // m_current should never be pointing past the end of the entries Vector. |
| 180 | // If it is, something has gone wrong and we should not try to swap in the new item. |
| 181 | ASSERT(*m_currentIndex < m_entries.size())((void)0); |
| 182 | |
| 183 | removedItems.append(m_entries[*m_currentIndex].copyRef()); |
| 184 | m_entries[*m_currentIndex] = WTF::move(newItem); |
| 185 | } else { |
| 186 | // m_current should never be pointing more than 1 past the end of the entries Vector. |
| 187 | // If it is, something has gone wrong and we should not try to insert the new item. |
| 188 | ASSERT(*m_currentIndex <= m_entries.size())((void)0); |
| 189 | |
| 190 | if (*m_currentIndex <= m_entries.size()) |
| 191 | m_entries.insert(*m_currentIndex, WTF::move(newItem)); |
| 192 | } |
| 193 | |
| 194 | LOG(BackForward, "(Back/Forward) WebBackForwardList %p added an item. Current size %zu, current index %zu, threw away %zu items", this, m_entries.size(), *m_currentIndex, removedItems.size())((void)0); |
| 195 | page->didChangeBackForwardList(newItemPtr, WTF::move(removedItems)); |
| 196 | } |
| 197 | |
| 198 | void WebBackForwardList::addChildItem(FrameIdentifier parentFrameID, Ref<FrameState>&& frameState) |
| 199 | { |
| 200 | RefPtr currentItem = this->currentItem(); |
| 201 | if (!currentItem) |
| 202 | return; |
| 203 | |
| 204 | RefPtr parentItem = currentItem->mainFrameItem().childItemForFrameID(parentFrameID); |
| 205 | if (!parentItem) |
| 206 | return; |
| 207 | |
| 208 | parentItem->setChild(WTF::move(frameState)); |
| 209 | } |
| 210 | |
| 211 | void WebBackForwardList::goToItem(WebBackForwardListItem& item) |
| 212 | { |
| 213 | ASSERT(!m_currentIndex || *m_currentIndex < m_entries.size())((void)0); |
| 214 | |
| 215 | RefPtr page = m_page.get(); |
| 216 | if (!m_entries.size() || !page || !m_currentIndex) |
| 217 | return; |
| 218 | |
| 219 | size_t targetIndex = notFound; |
| 220 | for (size_t i = 0; i < m_entries.size(); ++i) { |
| 221 | if (m_entries[i].ptr() == &item) { |
| 222 | targetIndex = i; |
| 223 | break; |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | // If the target item wasn't even in the list, there's nothing else to do. |
| 228 | if (targetIndex == notFound) { |
| 229 | LOG(BackForward, "(Back/Forward) WebBackForwardList %p could not go to item %s (%s) because it was not found", this, item.identifier().toString().utf8().data(), item.url().utf8().data())((void)0); |
| 230 | return; |
| 231 | } |
| 232 | |
| 233 | if (targetIndex < *m_currentIndex) { |
| 234 | unsigned delta = m_entries.size() - targetIndex - 1; |
| 235 | String deltaValue = delta > 10 ? "over10"_s : String::number(delta); |
| 236 | page->logDiagnosticMessage(WebCore::DiagnosticLoggingKeys::backNavigationDeltaKey(), deltaValue, ShouldSample::No); |
| 237 | } |
| 238 | |
| 239 | // If we're going to an item different from the current item, ask the client if the current |
| 240 | // item should remain in the list. |
| 241 | auto& currentItem = m_entries[*m_currentIndex]; |
| 242 | bool shouldKeepCurrentItem = true; |
| 243 | if (currentItem.ptr() != &item) { |
| 244 | page->recordAutomaticNavigationSnapshot(); |
| 245 | shouldKeepCurrentItem = page->shouldKeepCurrentBackForwardListItemInList(m_entries[*m_currentIndex]); |
| 246 | } |
| 247 | |
| 248 | // If the client said to remove the current item, remove it and then update the target index. |
| 249 | Vector<Ref<WebBackForwardListItem>> removedItems; |
| 250 | if (!shouldKeepCurrentItem) { |
| 251 | removedItems.append(currentItem.copyRef()); |
| 252 | m_entries.removeAt(*m_currentIndex); |
| 253 | targetIndex = notFound; |
| 254 | for (size_t i = 0; i < m_entries.size(); ++i) { |
| 255 | if (m_entries[i].ptr() == &item) { |
| 256 | targetIndex = i; |
| 257 | break; |
| 258 | } |
| 259 | } |
| 260 | ASSERT(targetIndex != notFound)((void)0); |
| 261 | } |
| 262 | |
| 263 | m_currentIndex = targetIndex; |
| 264 | |
| 265 | LOG(BackForward, "(Back/Forward) WebBackForwardList %p going to item %s, is now at index %zu", this, item.identifier().toString().utf8().data(), targetIndex)((void)0); |
| 266 | page->didChangeBackForwardList(nullptr, WTF::move(removedItems)); |
| 267 | } |
| 268 | |
| 269 | WebBackForwardListItem* WebBackForwardList::currentItem() const |
| 270 | { |
| 271 | ASSERT(!m_currentIndex || *m_currentIndex < m_entries.size())((void)0); |
| 272 | |
| 273 | return m_page && m_currentIndex ? m_entries[*m_currentIndex].ptr() : nullptr; |
| 274 | } |
| 275 | |
| 276 | RefPtr<WebBackForwardListItem> WebBackForwardList::backItem() const |
| 277 | { |
| 278 | ASSERT(!m_currentIndex || *m_currentIndex < m_entries.size())((void)0); |
| 279 | if (!m_page || !m_currentIndex) |
| 280 | return nullptr; |
| 281 | |
| 282 | if (shouldSkipItemsWithoutUserGestureForWebKitAPI()) |
| 283 | return itemStartingAtIndexSkippingItemsAddedByJSWithoutUserGesture(NavigationDirection::Backward, *m_currentIndex).first; |
| 284 | |
| 285 | return *m_currentIndex ? m_entries[*m_currentIndex - 1].ptr() : nullptr; |
| 286 | } |
| 287 | |
| 288 | RefPtr<WebBackForwardListItem> WebBackForwardList::forwardItem() const |
| 289 | { |
| 290 | ASSERT(!m_currentIndex || *m_currentIndex < m_entries.size())((void)0); |
| 291 | if (!m_page || !m_currentIndex) |
| 292 | return nullptr; |
| 293 | |
| 294 | if (shouldSkipItemsWithoutUserGestureForWebKitAPI()) |
| 295 | return itemStartingAtIndexSkippingItemsAddedByJSWithoutUserGesture(NavigationDirection::Forward, *m_currentIndex).first; |
| 296 | |
| 297 | return m_entries.size() && *m_currentIndex < m_entries.size() - 1 ? m_entries[*m_currentIndex + 1].ptr() : nullptr; |
| 298 | } |
| 299 | |
| 300 | RefPtr<WebBackForwardListItem> WebBackForwardList::itemAtDeltaFromCurrentIndex(int delta, AllowSkippingBackForwardItems allowSkippingBackForwardItems) const |
| 301 | { |
| 302 | if (!m_currentIndex || (int)*m_currentIndex + delta < 0) |
| 303 | return nullptr; |
| 304 | |
| 305 | // API requests to get the current item will always get the current item without any skipping logic. |
| 306 | if (!delta) |
| 307 | return itemAtIndexWithoutSkipping(*m_currentIndex).first; |
| 308 | |
| 309 | if (allowSkippingBackForwardItems == AllowSkippingBackForwardItems::No || !shouldSkipItemsWithoutUserGestureForWebKitAPI()) |
| 310 | return itemAtIndexWithoutSkipping(*m_currentIndex + delta).first; |
| 311 | |
| 312 | auto direction = delta < 0 ? NavigationDirection::Backward : NavigationDirection::Forward; |
| 313 | size_t stepsLeft = abs(delta); |
| 314 | size_t nextIndex = *m_currentIndex; |
| 315 | while (stepsLeft) { |
| 316 | auto item = itemStartingAtIndexSkippingItemsAddedByJSWithoutUserGesture(direction, nextIndex); |
| 317 | if (!item.first || !--stepsLeft) |
| 318 | return item.first; |
| 319 | nextIndex = item.second; |
| 320 | } |
| 321 | |
| 322 | return nullptr; |
| 323 | } |
| 324 | |
| 325 | std::pair<RefPtr<WebBackForwardListItem>, size_t> WebBackForwardList::itemAtIndexWithoutSkipping(size_t index) const |
| 326 | { |
| 327 | if (!m_page) |
| 328 | return { nullptr, index }; |
| 329 | |
| 330 | if (index >= m_entries.size()) |
| 331 | return { nullptr, index }; |
| 332 | |
| 333 | return { { m_entries[index] }, index }; |
| 334 | } |
| 335 | |
| 336 | unsigned WebBackForwardList::rawBackListEntryCount() const |
| 337 | { |
| 338 | ASSERT(!m_currentIndex || *m_currentIndex < m_entries.size())((void)0); |
| 339 | |
| 340 | return m_page && m_currentIndex ? *m_currentIndex : 0; |
| 341 | } |
| 342 | |
| 343 | unsigned WebBackForwardList::rawForwardListEntryCount() const |
| 344 | { |
| 345 | ASSERT(!m_currentIndex || *m_currentIndex < m_entries.size())((void)0); |
| 346 | |
| 347 | return m_page && m_currentIndex ? m_entries.size() - (*m_currentIndex + 1) : 0; |
| 348 | } |
| 349 | |
| 350 | unsigned WebBackForwardList::backListCountForAPI() const |
| 351 | { |
| 352 | return backList()->size(); |
| 353 | } |
| 354 | |
| 355 | unsigned WebBackForwardList::forwardListCountForAPI() const |
| 356 | { |
| 357 | return forwardList()->size(); |
A function 'forwardListCountForAPI' has [[clang::annotate_type("webkit.nodelete")]] but it contains code that could destruct an object | |
| 358 | } |
| 359 | |
| 360 | WebBackForwardListCounts WebBackForwardList::counts() const |
| 361 | { |
| 362 | return WebBackForwardListCounts { rawBackListEntryCount(), rawForwardListEntryCount() }; |
| 363 | } |
| 364 | |
| 365 | Ref<API::Array> WebBackForwardList::backList() const |
| 366 | { |
| 367 | return backListAsAPIArrayWithLimit(rawBackListEntryCount()); |
| 368 | } |
| 369 | |
| 370 | Ref<API::Array> WebBackForwardList::forwardList() const |
| 371 | { |
| 372 | return forwardListAsAPIArrayWithLimit(rawForwardListEntryCount()); |
| 373 | } |
| 374 | |
| 375 | Ref<API::Array> WebBackForwardList::backListAsAPIArrayWithLimit(unsigned limit) const |
| 376 | { |
| 377 | ASSERT(!m_currentIndex || *m_currentIndex < m_entries.size())((void)0); |
| 378 | |
| 379 | if (!m_page || !m_currentIndex) |
| 380 | return API::Array::create(); |
| 381 | |
| 382 | unsigned backListSize = rawBackListEntryCount(); |
| 383 | unsigned size = std::min(backListSize, limit); |
| 384 | if (!size) |
| 385 | return API::Array::create(); |
| 386 | |
| 387 | ASSERT(backListSize >= size)((void)0); |
| 388 | |
| 389 | if (shouldSkipItemsWithoutUserGestureForWebKitAPI()) { |
| 390 | Vector<RefPtr<API::Object>> vector; |
| 391 | |
| 392 | size_t nextStartingIndex = *m_currentIndex; |
| 393 | while (backListSize) { |
| 394 | auto item = itemStartingAtIndexSkippingItemsAddedByJSWithoutUserGesture(NavigationDirection::Backward, nextStartingIndex); |
| 395 | if (item.first) |
| 396 | vector.append(item.first); |
| 397 | |
| 398 | if (!item.first || !--backListSize || !item.second) |
| 399 | break; |
| 400 | nextStartingIndex = item.second; |
| 401 | } |
| 402 | vector.reverse(); |
| 403 | |
| 404 | return API::Array::create(WTF::move(vector)); |
| 405 | } |
| 406 | |
| 407 | size_t startIndex = backListSize - size; |
| 408 | Vector<RefPtr<API::Object>> vector(size, [&](size_t i) -> RefPtr<API::Object> { |
| 409 | // FIXME: Remove SUPPRESS_UNCOUNTED_LAMBDA_CAPTURE when the false positive |
| 410 | // in the static analyzer is fixed. |
| 411 | SUPPRESS_UNCOUNTED_LAMBDA_CAPTURE[[clang::suppress]] return m_entries[startIndex + i].ptr(); |
| 412 | }); |
| 413 | |
| 414 | return API::Array::create(WTF::move(vector)); |
| 415 | } |
| 416 | |
| 417 | Ref<API::Array> WebBackForwardList::forwardListAsAPIArrayWithLimit(unsigned limit) const |
| 418 | { |
| 419 | ASSERT(!m_currentIndex || *m_currentIndex < m_entries.size())((void)0); |
| 420 | |
| 421 | if (!m_page || !m_currentIndex) |
| 422 | return API::Array::create(); |
| 423 | |
| 424 | unsigned size = std::min(rawForwardListEntryCount(), limit); |
| 425 | if (!size) |
| 426 | return API::Array::create(); |
| 427 | |
| 428 | if (shouldSkipItemsWithoutUserGestureForWebKitAPI()) { |
| 429 | Vector<RefPtr<API::Object>> vector; |
| 430 | |
| 431 | size_t nextStartingIndex = *m_currentIndex; |
| 432 | while (size) { |
| 433 | auto item = itemStartingAtIndexSkippingItemsAddedByJSWithoutUserGesture(NavigationDirection::Forward, nextStartingIndex); |
| 434 | if (item.first) |
| 435 | vector.append(item.first); |
| 436 | |
| 437 | if (!item.first || !--size || !item.second) |
| 438 | break; |
| 439 | nextStartingIndex = item.second; |
| 440 | } |
| 441 | |
| 442 | return API::Array::create(WTF::move(vector)); |
| 443 | } |
| 444 | |
| 445 | size_t startIndex = *m_currentIndex + 1; |
| 446 | Vector<RefPtr<API::Object>> vector(size, [&](size_t i) -> RefPtr<API::Object> { |
| 447 | return m_entries[startIndex + i].ptr(); |
| 448 | }); |
| 449 | |
| 450 | return API::Array::create(WTF::move(vector)); |
| 451 | } |
| 452 | |
| 453 | void WebBackForwardList::removeAllItems() |
| 454 | { |
| 455 | ASSERT(!m_currentIndex || *m_currentIndex < m_entries.size())((void)0); |
| 456 | |
| 457 | LOG(BackForward, "(Back/Forward) WebBackForwardList %p removeAllItems (has %zu of them)", this, m_entries.size())((void)0); |
| 458 | |
| 459 | for (auto& entry : m_entries) |
| 460 | didRemoveItem(entry); |
| 461 | |
| 462 | m_currentIndex = std::nullopt; |
| 463 | protect(m_page)->didChangeBackForwardList(nullptr, std::exchange(m_entries, { })); |
| 464 | } |
| 465 | |
| 466 | void WebBackForwardList::clear() |
| 467 | { |
| 468 | ASSERT(!m_currentIndex || *m_currentIndex < m_entries.size())((void)0); |
| 469 | |
| 470 | LOG(BackForward, "(Back/Forward) WebBackForwardList %p clear (has %zu of them)", this, m_entries.size())((void)0); |
| 471 | |
| 472 | RefPtr page = m_page.get(); |
| 473 | size_t size = m_entries.size(); |
| 474 | if (!page || size <= 1) |
| 475 | return; |
| 476 | |
| 477 | RefPtr<WebBackForwardListItem> currentItem = this->currentItem(); |
| 478 | |
| 479 | if (!currentItem) { |
| 480 | // We should only ever have no current item if we also have no current item index. |
| 481 | ASSERT(!m_currentIndex)((void)0); |
| 482 | |
| 483 | // But just in case it does happen in practice we should get back into a consistent state now. |
| 484 | for (auto& entry : m_entries) |
| 485 | didRemoveItem(entry); |
| 486 | |
| 487 | m_currentIndex = std::nullopt; |
| 488 | page->didChangeBackForwardList(nullptr, std::exchange(m_entries, { })); |
| 489 | |
| 490 | return; |
| 491 | } |
| 492 | |
| 493 | for (size_t i = 0; i < size; ++i) { |
| 494 | if (m_entries[i].ptr() != currentItem) |
| 495 | didRemoveItem(m_entries[i]); |
| 496 | } |
| 497 | |
| 498 | Vector<Ref<WebBackForwardListItem>> removedItems; |
| 499 | removedItems.reserveInitialCapacity(size - 1); |
| 500 | for (size_t i = 0; i < size; ++i) { |
| 501 | if (m_currentIndex && i != *m_currentIndex) |
| 502 | removedItems.append(WTF::move(m_entries[i])); |
| 503 | } |
| 504 | |
| 505 | m_currentIndex = 0; |
| 506 | |
| 507 | m_entries.clear(); |
| 508 | if (currentItem) |
| 509 | m_entries.append(currentItem.releaseNonNull()); |
| 510 | else |
| 511 | m_currentIndex = std::nullopt; |
| 512 | page->didChangeBackForwardList(nullptr, WTF::move(removedItems)); |
| 513 | } |
| 514 | |
| 515 | BackForwardListState WebBackForwardList::backForwardListState(WTF::Function<bool (WebBackForwardListItem&)>&& filter) const |
| 516 | { |
| 517 | ASSERT(!m_currentIndex || *m_currentIndex < m_entries.size())((void)0); |
| 518 | |
| 519 | BackForwardListState backForwardListState; |
| 520 | if (m_currentIndex) |
| 521 | backForwardListState.currentIndex = *m_currentIndex; |
| 522 | |
| 523 | Borrow entries = m_entries; |
| 524 | for (size_t i = 0; i < entries->size(); ++i) { |
| 525 | auto& entry = entries.get()[i]; |
| 526 | |
| 527 | if (filter && !filter(entry)) { |
| 528 | auto& currentIndex = backForwardListState.currentIndex; |
| 529 | if (currentIndex && i <= currentIndex.value() && currentIndex.value()) |
| 530 | --currentIndex.value(); |
| 531 | |
| 532 | continue; |
| 533 | } |
| 534 | |
| 535 | backForwardListState.items.append({ entry->copyMainFrameStateWithChildren(), entry->navigatedFrameID() }); |
| 536 | } |
| 537 | |
| 538 | if (backForwardListState.items.isEmpty()) |
| 539 | backForwardListState.currentIndex = std::nullopt; |
| 540 | else if (backForwardListState.items.size() <= backForwardListState.currentIndex.value()) |
| 541 | backForwardListState.currentIndex = backForwardListState.items.size() - 1; |
| 542 | |
| 543 | return backForwardListState; |
| 544 | } |
| 545 | |
| 546 | void WebBackForwardList::restoreFromState(BackForwardListState backForwardListState) |
| 547 | { |
| 548 | if (!m_page) |
| 549 | return; |
| 550 | |
| 551 | // FIXME: Enable restoring resourceDirectoryURL. |
| 552 | m_entries = WTF::map(WTF::move(backForwardListState.items), [this](auto&& itemState) { |
| 553 | Ref stateCopy = itemState.frameState->copy(); |
| 554 | setBackForwardItemIdentifiers(stateCopy, BackForwardItemIdentifier::generate()); |
| 555 | m_currentIndex = m_entries.isEmpty() ? std::nullopt : std::optional(m_entries.size() - 1); |
| 556 | return WebBackForwardListItem::create(WTF::move(stateCopy), m_page->identifier(), itemState.navigatedFrameID); |
| 557 | }); |
| 558 | m_currentIndex = backForwardListState.currentIndex ? std::optional<size_t>(*backForwardListState.currentIndex) : std::nullopt; |
| 559 | |
| 560 | LOG(BackForward, "(Back/Forward) WebBackForwardList %p restored from state (has %zu entries)", this, m_entries.size())((void)0); |
| 561 | } |
| 562 | |
| 563 | void WebBackForwardList::setItemsAsRestoredFromSession() |
| 564 | { |
| 565 | setItemsAsRestoredFromSessionIf([](WebBackForwardListItem&) { |
| 566 | return true; |
| 567 | }); |
| 568 | } |
| 569 | |
| 570 | void WebBackForwardList::setItemsAsRestoredFromSessionIf(NOESCAPE[[clang::noescape]] Function<bool(WebBackForwardListItem&)>&& functor) |
| 571 | { |
| 572 | for (auto& entry : m_entries) { |
| 573 | if (functor(entry)) |
| 574 | entry->setWasRestoredFromSession(); |
| 575 | } |
| 576 | } |
| 577 | |
| 578 | void WebBackForwardList::didRemoveItem(WebBackForwardListItem& backForwardListItem) |
| 579 | { |
| 580 | backForwardListItem.wasRemovedFromBackForwardList(); |
| 581 | |
| 582 | protect(m_page)->backForwardRemovedItem(backForwardListItem.mainFrameItem().identifier()); |
| 583 | |
| 584 | #if PLATFORM(COCOA)(defined 1 && 1) || PLATFORM(GTK)(defined WTF_PLATFORM_GTK && WTF_PLATFORM_GTK) |
| 585 | backForwardListItem.setSnapshot(nullptr); |
| 586 | #endif |
| 587 | } |
| 588 | |
| 589 | std::pair<RefPtr<WebBackForwardListItem>, size_t> WebBackForwardList::itemStartingAtIndexSkippingItemsAddedByJSWithoutUserGesture(NavigationDirection direction, size_t startingIndex) const |
| 590 | { |
| 591 | if (direction == NavigationDirection::Backward && !startingIndex) |
| 592 | return { nullptr, 0 }; |
| 593 | |
| 594 | auto delta = direction == NavigationDirection::Backward ? -1 : 1; |
| 595 | size_t itemIndex = startingIndex + delta; |
| 596 | |
| 597 | if (itemIndex >= m_entries.size()) |
| 598 | return { nullptr, 0 }; |
| 599 | |
| 600 | auto startingItem = itemAtIndexWithoutSkipping(startingIndex); |
| 601 | RELEASE_ASSERT(startingItem.first)do { if (__builtin_expect(!!(!(startingItem.first)), 0)) do { WTF::isIntegralOrPointerType(); compilerFenceForCrash(); WTFCrashWithInfo (601, "/Volumes/Data/worker/macOS-Safer-CPP-Checks-EWS/build/Source/WebKit/UIProcess/WebBackForwardList.cpp" , __PRETTY_FUNCTION__ ); } while (false); } while (0); |
| 602 | |
| 603 | auto item = itemAtIndexWithoutSkipping(itemIndex); |
| 604 | |
| 605 | #if PLATFORM(COCOA)(defined 1 && 1) |
| 606 | if (!linkedOnOrAfterSDKWithBehavior(SDKAlignedBehavior::UIBackForwardSkipsHistoryItemsWithoutUserGesture)) |
| 607 | return item; |
| 608 | #endif |
| 609 | |
| 610 | if (!item.first) |
| 611 | return item; |
| 612 | |
| 613 | // For example: |
| 614 | // A -> A#a (no userInteraction) -> B -> B#a (no user interaction) -> B#b (no user interaction) |
| 615 | // If we're on B and navigate back, we don't want to skip anything and load A#a. |
| 616 | // However, if we're on A and navigate forward, we do want to skip items and end up on B#b. |
| 617 | // The forward logic comes later. |
| 618 | if (direction == NavigationDirection::Backward && !startingItem.first->wasCreatedByJSWithoutUserInteraction()) |
| 619 | return item; |
| 620 | |
| 621 | // If every item from this point back to the start of the list was created by JS without user interaction, |
| 622 | // we ignore them all. |
| 623 | if (direction == NavigationDirection::Backward && startingItem.first->wasCreatedByJSWithoutUserInteraction()) { |
| 624 | auto innerItem = item; |
| 625 | while (innerItem.first->wasCreatedByJSWithoutUserInteraction()) { |
| 626 | if (innerItem.second) |
| 627 | innerItem = itemAtIndexWithoutSkipping(innerItem.second - 1); |
| 628 | else |
| 629 | return { }; |
| 630 | ASSERT(innerItem.first)((void)0); |
| 631 | } |
| 632 | } |
| 633 | |
| 634 | // For example: |
| 635 | // Yahoo -> Yahoo#a (no userInteraction) -> Google -> Google#a (no user interaction) -> Google#b (no user interaction) |
| 636 | // If we are on Google#b and navigate backwards, we want to skip over Google#a and Google, to end up on Yahoo#a. |
| 637 | // If we are on Yahoo#a and navigate forwards, we want to skip over Google and Google#a, to end up on Google#b. |
| 638 | auto originalitem = item; |
| 639 | while (item.first->wasCreatedByJSWithoutUserInteraction()) { |
| 640 | itemIndex += delta; |
| 641 | item = itemAtIndexWithoutSkipping(itemIndex); |
| 642 | if (!item.first) { |
| 643 | // If there are no more back items that ever had a user gesture, then we should not enable going back. |
| 644 | // This happens when e.g. a new window is created by JavaScript then client redirects occur that create |
| 645 | // a sequence of history items, each without user interaction. |
| 646 | RELEASE_LOG(Loading, "UI Navigation is disabling going back because no more WebBackForwardListItem items in the back list had user interaction")clang diagnostic push
clang diagnostic ignored "-Wunknown-warning-option" clang diagnostic ignored "-Wunsafe-buffer-usage" clang diagnostic ignored "-Wunsafe-buffer-usage-in-libc-call" clang diagnostic ignored "-Wunsafe-buffer-usage-in-format-attr-call" [[clang ::suppress]] __extension__({ os_log_t _log_tmp = (WebKit2LogLoading .osLogChannel); os_log_type_t _type_tmp = (OS_LOG_TYPE_DEFAULT ); if (os_log_type_enabled(_log_tmp, _type_tmp)) { __extension__ ({ clang diagnostic push clang diagnostic ignored "-Wvla" clang diagnostic error "-Wformat" _Static_assert(__builtin_constant_p ("UI Navigation is disabling going back because no more WebBackForwardListItem items in the back list had user interaction" ), "format/label/description argument must be a string constant" ); __attribute__((section("__TEXT,__oslogstring,cstring_literals" ),internal_linkage)) static const char _os_fmt_str[] __asm("LOS_LOG13" ) = "UI Navigation is disabling going back because no more WebBackForwardListItem items in the back list had user interaction" ; uint8_t _Alignas(16) __attribute__((uninitialized)) _os_fmt_buf [__builtin_os_log_format_buffer_size("UI Navigation is disabling going back because no more WebBackForwardListItem items in the back list had user interaction" )]; _os_log_impl(&__dso_handle, _log_tmp, _type_tmp, _os_fmt_str , (uint8_t *)__builtin_os_log_format(_os_fmt_buf, "UI Navigation is disabling going back because no more WebBackForwardListItem items in the back list had user interaction" ), (uint32_t)sizeof(_os_fmt_buf)) clang diagnostic pop ; }); } }) clang diagnostic pop ; |
| 647 | return { }; |
| 648 | } |
| 649 | |
| 650 | RELEASE_LOG(Loading, "UI Navigation is skipping a WebBackForwardListItem because it was added by JavaScript without user interaction")clang diagnostic push
clang diagnostic ignored "-Wunknown-warning-option" clang diagnostic ignored "-Wunsafe-buffer-usage" clang diagnostic ignored "-Wunsafe-buffer-usage-in-libc-call" clang diagnostic ignored "-Wunsafe-buffer-usage-in-format-attr-call" [[clang ::suppress]] __extension__({ os_log_t _log_tmp = (WebKit2LogLoading .osLogChannel); os_log_type_t _type_tmp = (OS_LOG_TYPE_DEFAULT ); if (os_log_type_enabled(_log_tmp, _type_tmp)) { __extension__ ({ clang diagnostic push clang diagnostic ignored "-Wvla" clang diagnostic error "-Wformat" _Static_assert(__builtin_constant_p ("UI Navigation is skipping a WebBackForwardListItem because it was added by JavaScript without user interaction" ), "format/label/description argument must be a string constant" ); __attribute__((section("__TEXT,__oslogstring,cstring_literals" ),internal_linkage)) static const char _os_fmt_str[] __asm("LOS_LOG14" ) = "UI Navigation is skipping a WebBackForwardListItem because it was added by JavaScript without user interaction" ; uint8_t _Alignas(16) __attribute__((uninitialized)) _os_fmt_buf [__builtin_os_log_format_buffer_size("UI Navigation is skipping a WebBackForwardListItem because it was added by JavaScript without user interaction" )]; _os_log_impl(&__dso_handle, _log_tmp, _type_tmp, _os_fmt_str , (uint8_t *)__builtin_os_log_format(_os_fmt_buf, "UI Navigation is skipping a WebBackForwardListItem because it was added by JavaScript without user interaction" ), (uint32_t)sizeof(_os_fmt_buf)) clang diagnostic pop ; }); } }) clang diagnostic pop ; |
| 651 | } |
| 652 | |
| 653 | // We are now on the next item that has user interaction. |
| 654 | ASSERT(!item.first->wasCreatedByJSWithoutUserInteraction())((void)0); |
| 655 | |
| 656 | if (direction == NavigationDirection::Backward) { |
| 657 | // If going backwards, skip over next item with user iteraction since this is the one the user |
| 658 | // thinks they're on. |
| 659 | --itemIndex; |
| 660 | item = itemAtIndexWithoutSkipping(itemIndex); |
| 661 | if (!item.first) |
| 662 | return originalitem; |
| 663 | RELEASE_LOG(Loading, "UI Navigation is skipping a WebBackForwardListItem that has user interaction because we started on an item that didn't have interaction")clang diagnostic push
clang diagnostic ignored "-Wunknown-warning-option" clang diagnostic ignored "-Wunsafe-buffer-usage" clang diagnostic ignored "-Wunsafe-buffer-usage-in-libc-call" clang diagnostic ignored "-Wunsafe-buffer-usage-in-format-attr-call" [[clang ::suppress]] __extension__({ os_log_t _log_tmp = (WebKit2LogLoading .osLogChannel); os_log_type_t _type_tmp = (OS_LOG_TYPE_DEFAULT ); if (os_log_type_enabled(_log_tmp, _type_tmp)) { __extension__ ({ clang diagnostic push clang diagnostic ignored "-Wvla" clang diagnostic error "-Wformat" _Static_assert(__builtin_constant_p ("UI Navigation is skipping a WebBackForwardListItem that has user interaction because we started on an item that didn't have interaction" ), "format/label/description argument must be a string constant" ); __attribute__((section("__TEXT,__oslogstring,cstring_literals" ),internal_linkage)) static const char _os_fmt_str[] __asm("LOS_LOG15" ) = "UI Navigation is skipping a WebBackForwardListItem that has user interaction because we started on an item that didn't have interaction" ; uint8_t _Alignas(16) __attribute__((uninitialized)) _os_fmt_buf [__builtin_os_log_format_buffer_size("UI Navigation is skipping a WebBackForwardListItem that has user interaction because we started on an item that didn't have interaction" )]; _os_log_impl(&__dso_handle, _log_tmp, _type_tmp, _os_fmt_str , (uint8_t *)__builtin_os_log_format(_os_fmt_buf, "UI Navigation is skipping a WebBackForwardListItem that has user interaction because we started on an item that didn't have interaction" ), (uint32_t)sizeof(_os_fmt_buf)) clang diagnostic pop ; }); } }) clang diagnostic pop ; |
| 664 | } else { |
| 665 | // If going forward and there are items that we created by JS without user interaction, move forward to the last |
| 666 | // one in the series. |
| 667 | auto nextItem = itemAtIndexWithoutSkipping(itemIndex + 1); |
| 668 | while (nextItem.first && nextItem.first->wasCreatedByJSWithoutUserInteraction()) |
| 669 | item = std::exchange(nextItem, itemAtIndexWithoutSkipping(++itemIndex)); |
| 670 | } |
| 671 | return item; |
| 672 | } |
| 673 | |
| 674 | RefPtr<WebBackForwardListItem> WebBackForwardList::goBackItemSkippingItemsWithoutUserGesture() const |
| 675 | { |
| 676 | if (!m_currentIndex || !*m_currentIndex) |
| 677 | return nullptr; |
| 678 | return itemStartingAtIndexSkippingItemsAddedByJSWithoutUserGesture(NavigationDirection::Backward, *m_currentIndex).first; |
| 679 | } |
| 680 | |
| 681 | RefPtr<WebBackForwardListItem> WebBackForwardList::goForwardItemSkippingItemsWithoutUserGesture() const |
| 682 | { |
| 683 | if (!m_currentIndex || *m_currentIndex >= m_entries.size()) |
| 684 | return nullptr; |
| 685 | return itemStartingAtIndexSkippingItemsAddedByJSWithoutUserGesture(NavigationDirection::Forward, *m_currentIndex).first; |
| 686 | } |
| 687 | |
| 688 | static inline void NODELETE[[clang::annotate_type("webkit.nodelete")]] setBackForwardItemIdentifier(FrameState& frameState, BackForwardItemIdentifier itemID) |
| 689 | { |
| 690 | frameState.itemID = itemID; |
| 691 | for (auto& child : frameState.children) |
| 692 | setBackForwardItemIdentifier(child, itemID); |
| 693 | } |
| 694 | |
| 695 | Ref<FrameState> WebBackForwardList::completeFrameStateForNavigation(Ref<FrameState>&& navigatedFrameState) |
| 696 | { |
| 697 | RefPtr currentItem = this->currentItem(); |
| 698 | if (!currentItem) |
| 699 | return navigatedFrameState; |
| 700 | |
| 701 | auto navigatedFrameID = navigatedFrameState->frameID; |
| 702 | if (!navigatedFrameID) |
| 703 | return navigatedFrameState; |
| 704 | |
| 705 | Ref mainFrameItem = currentItem->mainFrameItem(); |
| 706 | if (mainFrameItem->frameID() == navigatedFrameID) |
| 707 | return navigatedFrameState; |
| 708 | |
| 709 | if (!mainFrameItem->childItemForFrameID(*navigatedFrameID)) |
| 710 | return navigatedFrameState; |
| 711 | |
| 712 | Ref frameState = currentItem->copyMainFrameStateWithChildren(); |
| 713 | setBackForwardItemIdentifier(frameState, *navigatedFrameState->itemID); |
| 714 | frameState->replaceChildFrameState(WTF::move(navigatedFrameState)); |
| 715 | return frameState; |
| 716 | } |
| 717 | |
| 718 | #define MESSAGE_CHECK(process, assertion)do { if (!(assertion)) [[unlikely]] { os_fault_with_payload(31 , 0, nullptr, 0, makeString("/Volumes/Data/worker/macOS-Safer-CPP-Checks-EWS/build/Source/WebKit/UIProcess/WebBackForwardList.cpp" " " "718" ": Invalid message dispatched "_s, unsafeSpan(__PRETTY_FUNCTION__ )).utf8().data(), 0); IPC::markCurrentlyDispatchedMessageAsInvalid (process->connection(), "Message check failed: " "assertion"_s ); if (IPC::Connection::shouldCrashOnMessageCheckFailure()) { do { __asm__ volatile ("brk #0xc471"); __builtin_unreachable (); } while (0); } { (void)0; } return; } } while (0) MESSAGE_CHECK_BASE(assertion, process->connection())do { if (!(assertion)) [[unlikely]] { os_fault_with_payload(31 , 0, nullptr, 0, makeString("/Volumes/Data/worker/macOS-Safer-CPP-Checks-EWS/build/Source/WebKit/UIProcess/WebBackForwardList.cpp" " " "718" ": Invalid message dispatched "_s, unsafeSpan(__PRETTY_FUNCTION__ )).utf8().data(), 0); IPC::markCurrentlyDispatchedMessageAsInvalid (process->connection(), "Message check failed: " "assertion"_s ); if (IPC::Connection::shouldCrashOnMessageCheckFailure()) { do { __asm__ volatile ("brk #0xc471"); __builtin_unreachable (); } while (0); } { (void)0; } return; } } while (0) |
| 719 | #define MESSAGE_CHECK_COMPLETION(process, assertion, completion)do { if (!(assertion)) [[unlikely]] { os_fault_with_payload(31 , 0, nullptr, 0, makeString("/Volumes/Data/worker/macOS-Safer-CPP-Checks-EWS/build/Source/WebKit/UIProcess/WebBackForwardList.cpp" " " "719" ": Invalid message dispatched "_s, unsafeSpan(__PRETTY_FUNCTION__ )).utf8().data(), 0); IPC::markCurrentlyDispatchedMessageAsInvalid (process->connection(), "Message check failed: " "assertion"_s ); if (IPC::Connection::shouldCrashOnMessageCheckFailure()) { do { __asm__ volatile ("brk #0xc471"); __builtin_unreachable (); } while (0); } { completion; } return; } } while (0) MESSAGE_CHECK_COMPLETION_BASE(assertion, process->connection(), completion)do { if (!(assertion)) [[unlikely]] { os_fault_with_payload(31 , 0, nullptr, 0, makeString("/Volumes/Data/worker/macOS-Safer-CPP-Checks-EWS/build/Source/WebKit/UIProcess/WebBackForwardList.cpp" " " "719" ": Invalid message dispatched "_s, unsafeSpan(__PRETTY_FUNCTION__ )).utf8().data(), 0); IPC::markCurrentlyDispatchedMessageAsInvalid (process->connection(), "Message check failed: " "assertion"_s ); if (IPC::Connection::shouldCrashOnMessageCheckFailure()) { do { __asm__ volatile ("brk #0xc471"); __builtin_unreachable (); } while (0); } { completion; } return; } } while (0) |
| 720 | |
| 721 | void WebBackForwardList::backForwardAddItem(IPC::Connection& connection, Ref<FrameState>&& navigatedFrameState) |
| 722 | { |
| 723 | if (RefPtr webPageProxy = m_page.get()) |
| 724 | backForwardAddItemShared(connection, WTF::move(navigatedFrameState), webPageProxy->didLoadWebArchive() ? LoadedWebArchive::Yes : LoadedWebArchive::No); |
| 725 | } |
| 726 | |
| 727 | void WebBackForwardList::backForwardAddItemShared(IPC::Connection& connection, Ref<FrameState>&& navigatedFrameState, LoadedWebArchive loadedWebArchive) |
| 728 | { |
| 729 | Ref process = WebProcessProxy::fromConnection(connection); |
| 730 | |
| 731 | URL itemURL { navigatedFrameState->urlString }; |
| 732 | URL itemOriginalURL { navigatedFrameState->originalURLString }; |
| 733 | #if PLATFORM(COCOA)(defined 1 && 1) |
| 734 | if (linkedOnOrAfterSDKWithBehavior(SDKAlignedBehavior::PushStateFilePathRestriction) |
| 735 | #if PLATFORM(MAC)(defined 1 && 1) |
| 736 | && !WTF::MacApplication::isMimeoPhotoProject() // rdar://112445672. |
| 737 | #endif // PLATFORM(MAC) |
| 738 | ) { |
| 739 | #endif // PLATFORM(COCOA) |
| 740 | ASSERT(!itemURL.protocolIsFile() || process->wasPreviouslyApprovedFileURL(itemURL))((void)0); |
| 741 | MESSAGE_CHECK(process, !itemURL.protocolIsFile() || process->wasPreviouslyApprovedFileURL(itemURL))do { if (!(!itemURL.protocolIsFile() || process->wasPreviouslyApprovedFileURL (itemURL))) [[unlikely]] { os_fault_with_payload(31, 0, nullptr , 0, makeString("/Volumes/Data/worker/macOS-Safer-CPP-Checks-EWS/build/Source/WebKit/UIProcess/WebBackForwardList.cpp" " " "741" ": Invalid message dispatched "_s, unsafeSpan(__PRETTY_FUNCTION__ )).utf8().data(), 0); IPC::markCurrentlyDispatchedMessageAsInvalid (process->connection(), "Message check failed: " "!itemURL.protocolIsFile() || process->wasPreviouslyApprovedFileURL(itemURL)"_s ); if (IPC::Connection::shouldCrashOnMessageCheckFailure()) { do { __asm__ volatile ("brk #0xc471"); __builtin_unreachable (); } while (0); } { (void)0; } return; } } while (0); |
| 742 | MESSAGE_CHECK(process, !itemOriginalURL.protocolIsFile() || process->wasPreviouslyApprovedFileURL(itemOriginalURL))do { if (!(!itemOriginalURL.protocolIsFile() || process->wasPreviouslyApprovedFileURL (itemOriginalURL))) [[unlikely]] { os_fault_with_payload(31, 0 , nullptr, 0, makeString("/Volumes/Data/worker/macOS-Safer-CPP-Checks-EWS/build/Source/WebKit/UIProcess/WebBackForwardList.cpp" " " "742" ": Invalid message dispatched "_s, unsafeSpan(__PRETTY_FUNCTION__ )).utf8().data(), 0); IPC::markCurrentlyDispatchedMessageAsInvalid (process->connection(), "Message check failed: " "!itemOriginalURL.protocolIsFile() || process->wasPreviouslyApprovedFileURL(itemOriginalURL)"_s ); if (IPC::Connection::shouldCrashOnMessageCheckFailure()) { do { __asm__ volatile ("brk #0xc471"); __builtin_unreachable (); } while (0); } { (void)0; } return; } } while (0); |
| 743 | #if PLATFORM(COCOA)(defined 1 && 1) |
| 744 | } |
| 745 | #endif |
| 746 | |
| 747 | if (RefPtr targetFrame = WebFrameProxy::webFrame(navigatedFrameState->frameID)) { |
| 748 | if (targetFrame->isPendingInitialHistoryItem()) { |
| 749 | targetFrame->setIsPendingInitialHistoryItem(false); |
| 750 | if (RefPtr parent = targetFrame->parentFrame()) |
| 751 | addChildItem(parent->frameID(), WTF::move(navigatedFrameState)); |
| 752 | return; |
| 753 | } |
| 754 | } else |
| 755 | return; |
| 756 | |
| 757 | if (RefPtr webPageProxy = m_page.get()) { |
| 758 | auto navigatedFrameID = navigatedFrameState->frameID; |
| 759 | Ref item = WebBackForwardListItem::create(completeFrameStateForNavigation(WTF::move(navigatedFrameState)), webPageProxy->identifier(), navigatedFrameID, protect(webPageProxy->browsingContextGroup()).ptr()); |
| 760 | item->setResourceDirectoryURL(webPageProxy->currentResourceDirectoryURL()); |
| 761 | item->setEnhancedSecurity(process->enhancedSecurity()); |
| 762 | if (loadedWebArchive == LoadedWebArchive::Yes) |
| 763 | item->setDataStoreForWebArchive(protect(process->websiteDataStore())); |
| 764 | addItem(WTF::move(item)); |
| 765 | } |
| 766 | } |
| 767 | |
| 768 | void WebBackForwardList::backForwardSetChildItem(BackForwardFrameItemIdentifier frameItemID, Ref<FrameState>&& frameState) |
| 769 | { |
| 770 | RefPtr item = currentItem(); |
| 771 | if (!item) |
| 772 | return; |
| 773 | |
| 774 | if (RefPtr frameItem = WebBackForwardListFrameItem::itemForID(item->identifier(), frameItemID)) |
| 775 | frameItem->setChild(WTF::move(frameState)); |
| 776 | } |
| 777 | |
| 778 | void WebBackForwardList::backForwardClearChildren(BackForwardItemIdentifier itemID, BackForwardFrameItemIdentifier frameItemID) |
| 779 | { |
| 780 | if (RefPtr frameItem = WebBackForwardListFrameItem::itemForID(itemID, frameItemID)) |
| 781 | frameItem->clearChildren(); |
| 782 | } |
| 783 | |
| 784 | void WebBackForwardList::backForwardUpdateItem(IPC::Connection& connection, Ref<FrameState>&& frameState) |
| 785 | { |
| 786 | RefPtr frameItem = frameState->itemID && frameState->frameItemID ? WebBackForwardListFrameItem::itemForID(*frameState->itemID, *frameState->frameItemID) : nullptr; |
| 787 | if (!frameItem) |
| 788 | return; |
| 789 | |
| 790 | RefPtr item = frameItem->backForwardListItem(); |
| 791 | if (!item) |
| 792 | return; |
| 793 | |
| 794 | if (RefPtr webPageProxy = m_page.get()) { |
| 795 | ASSERT(webPageProxy->identifier() == item->pageID() && frameState->itemID == item->identifier())((void)0); |
| 796 | |
| 797 | Ref process = *downcast<WebProcessProxy>(AuxiliaryProcessProxy::fromConnection(connection)); |
| 798 | if (!!item->backForwardCacheEntry() != frameState->hasCachedPage) { |
| 799 | if (frameState->hasCachedPage) |
| 800 | protect(webPageProxy->backForwardCache())->addEntry(*item, process->coreProcessIdentifier()); |
| 801 | else if (!item->suspendedPage()) |
| 802 | protect(webPageProxy->backForwardCache())->removeEntry(*item); |
| 803 | } |
| 804 | |
| 805 | auto oldFrameID = frameItem->frameID(); |
| 806 | frameItem->setFrameState(WTF::move(frameState)); |
| 807 | auto newFrameID = frameItem->frameID(); |
| 808 | |
| 809 | if (oldFrameID && newFrameID && oldFrameID != newFrameID) |
| 810 | updateFrameIdentifier(*oldFrameID, *newFrameID); |
| 811 | |
| 812 | webPageProxy->updateCanGoBackAndForward(); |
| 813 | } |
| 814 | } |
| 815 | |
| 816 | void WebBackForwardList::updateFrameIdentifier(FrameIdentifier oldFrameID, FrameIdentifier newFrameID) |
| 817 | { |
| 818 | for (auto& entry : m_entries) |
| 819 | entry->updateFrameID(oldFrameID, newFrameID); |
| 820 | } |
| 821 | |
| 822 | void WebBackForwardList::backForwardGoToItem(BackForwardItemIdentifier itemID, CompletionHandler<void(const WebBackForwardListCounts&)>&& completionHandler) |
| 823 | { |
| 824 | // On process swap, we tell the previous process to ignore the load, which causes it to restore its current back forward item to its previous |
| 825 | // value. Since the load is really going on in a new provisional process, we want to ignore such requests from the committed process. |
| 826 | // Any real new load in the committed process would have cleared m_provisionalPage. |
| 827 | if (RefPtr webPageProxy = m_page.get()) { |
| 828 | if (webPageProxy->hasProvisionalPage()) |
| 829 | return completionHandler(counts()); |
| 830 | } |
| 831 | |
| 832 | backForwardGoToItemShared(itemID, WTF::move(completionHandler)); |
| 833 | } |
| 834 | |
| 835 | void WebBackForwardList::backForwardListContainsItem(WebCore::BackForwardItemIdentifier itemID, CompletionHandler<void(bool)>&& completionHandler) |
| 836 | { |
| 837 | completionHandler(itemForID(itemID)); |
| 838 | } |
| 839 | |
| 840 | void WebBackForwardList::backForwardGoToItemShared(BackForwardItemIdentifier itemID, CompletionHandler<void(const WebBackForwardListCounts&)>&& completionHandler) |
| 841 | { |
| 842 | if (RefPtr webPageProxy = m_page.get()) |
| 843 | MESSAGE_CHECK_COMPLETION(Ref { webPageProxy->legacyMainFrameProcess() }, !WebKit::isInspectorPage(*webPageProxy), completionHandler(counts()))do { if (!(!WebKit::isInspectorPage(*webPageProxy))) [[unlikely ]] { os_fault_with_payload(31, 0, nullptr, 0, makeString("/Volumes/Data/worker/macOS-Safer-CPP-Checks-EWS/build/Source/WebKit/UIProcess/WebBackForwardList.cpp" " " "843" ": Invalid message dispatched "_s, unsafeSpan(__PRETTY_FUNCTION__ )).utf8().data(), 0); IPC::markCurrentlyDispatchedMessageAsInvalid (Ref { webPageProxy->legacyMainFrameProcess() }->connection (), "Message check failed: " "!WebKit::isInspectorPage(*webPageProxy)"_s ); if (IPC::Connection::shouldCrashOnMessageCheckFailure()) { do { __asm__ volatile ("brk #0xc471"); __builtin_unreachable (); } while (0); } { completionHandler(counts()); } return; } } while (0); |
| 844 | |
| 845 | RefPtr item = itemForID(itemID); |
| 846 | if (!item) |
| 847 | return completionHandler(counts()); |
| 848 | |
| 849 | goToItem(*item); |
| 850 | completionHandler(counts()); |
| 851 | } |
| 852 | |
| 853 | void WebBackForwardList::backForwardAllItems(FrameIdentifier frameID, CompletionHandler<void(Vector<Ref<FrameState>>&&)>&& completionHandler) |
| 854 | { |
| 855 | auto frameItems = WTF::compactMap(entries(), [frameID](const auto& item) -> RefPtr<WebBackForwardListFrameItem> { |
| 856 | return item->mainFrameItem().childItemForFrameID(frameID); |
| 857 | }); |
| 858 | |
| 859 | completionHandler(WTF::map(WTF::move(frameItems), [](const auto& frameItem) { |
| 860 | return frameItem->copyFrameStateWithChildren(); |
| 861 | })); |
| 862 | } |
| 863 | |
| 864 | void WebBackForwardList::backForwardItemAtIndexForWebContent(int32_t delta, FrameIdentifier frameID, CompletionHandler<void(RefPtr<FrameState>&&)>&& completionHandler) |
| 865 | { |
| 866 | // FIXME: This should verify that the web process requesting the item hosts the specified frame. |
| 867 | if (RefPtr item = itemAtDeltaFromCurrentIndex(delta, AllowSkippingBackForwardItems::No)) { |
| 868 | if (RefPtr frameItem = item->mainFrameItem().childItemForFrameID(frameID)) |
| 869 | return completionHandler(frameItem->copyFrameStateWithChildren()); |
| 870 | completionHandler(item->copyMainFrameStateWithChildren()); |
| 871 | } else |
| 872 | completionHandler(nullptr); |
| 873 | } |
| 874 | |
| 875 | void WebBackForwardList::backForwardListCounts(CompletionHandler<void(WebBackForwardListCounts&&)>&& completionHandler) |
| 876 | { |
| 877 | completionHandler(counts()); |
| 878 | } |
| 879 | |
| 880 | FrameState* WebBackForwardList::findFrameStateInItem(WebCore::BackForwardItemIdentifier itemID, WebCore::FrameIdentifier parentFrameID, uint64_t childFrameIndex) |
| 881 | { |
| 882 | RefPtr targetItem = itemForID(itemID); |
| 883 | if (!targetItem) |
| 884 | return nullptr; |
| 885 | |
| 886 | RefPtr parentFrameItem = targetItem->mainFrameItem().childItemForFrameID(parentFrameID); |
| 887 | if (!parentFrameItem) { |
| 888 | // FIXME: After session restore, the back/forward list's frame identifiers don't match |
| 889 | // the current WebView's frames because the original identifiers are unavailable. |
| 890 | // Fall back to the mainFrameItem if the parentFrameID isn't found. |
| 891 | // This only works correctly for direct children of the main frame; nested frames |
| 892 | // (e.g., subframe > nestedframe) will get the wrong FrameState. |
| 893 | parentFrameItem = &targetItem->mainFrameItem(); |
| 894 | } |
| 895 | |
| 896 | RefPtr childFrameItem = parentFrameItem->childItemAtIndex(childFrameIndex); |
| 897 | if (!childFrameItem) |
| 898 | return nullptr; |
| 899 | |
| 900 | return &childFrameItem->frameState(); |
| 901 | } |
| 902 | |
| 903 | String WebBackForwardList::loggingString() const |
| 904 | { |
| 905 | StringBuilder builder; |
| 906 | |
| 907 | String currentIndexString = m_currentIndex ? String::number(*m_currentIndex) : String::number(-1); |
| 908 | builder.append("\nWebBackForwardList 0x"_s, hex(reinterpret_cast<uintptr_t>(this)), " - "_s, m_entries.size(), " entries, currentIndex is "_s, currentIndexString, "\n"_s); |
| 909 | |
| 910 | for (size_t i = 0; i < m_entries.size(); ++i) { |
| 911 | Ref entry = m_entries[i]; |
| 912 | String itemIdentifier = entry->identifier().loggingString(); |
| 913 | auto entryString = entry->loggingString(); |
| 914 | builder.append(String::number(i), " - ItemID:"_s, itemIdentifier, ", "_s, entryString); |
| 915 | } |
| 916 | |
| 917 | return builder.toString(); |
| 918 | } |
| 919 | |
| 920 | #else // ENABLE(BACK_FORWARD_LIST_SWIFT) |
| 921 | |
| 922 | WebBackForwardListWrapper::WebBackForwardListWrapper(WebPageProxy& webPageProxy) |
| 923 | : m_impl(WTF::makeUniqueWithoutFastMallocCheck<WebBackForwardList>(WebBackForwardList::init(webPageProxy))) |
| 924 | { |
| 925 | } |
| 926 | |
| 927 | WebBackForwardListWrapper::~WebBackForwardListWrapper() = default; |
| 928 | |
| 929 | WebBackForwardListItem* WebBackForwardListWrapper::currentItem() const |
| 930 | { |
| 931 | return m_impl->currentItem(); |
| 932 | } |
| 933 | |
| 934 | RefPtr<WebBackForwardListItem> WebBackForwardListWrapper::backItem() const |
| 935 | { |
| 936 | return m_impl->backItem(); |
| 937 | } |
| 938 | |
| 939 | RefPtr<WebBackForwardListItem> WebBackForwardListWrapper::forwardItem() const |
| 940 | { |
| 941 | return m_impl->forwardItem(); |
| 942 | } |
| 943 | |
| 944 | RefPtr<WebBackForwardListItem> WebBackForwardListWrapper::itemAtDeltaFromCurrentIndex(int index, AllowSkippingBackForwardItems allowSkipping) const |
| 945 | { |
| 946 | return m_impl->itemAtDeltaFromCurrentIndex(index, allowSkipping == AllowSkippingBackForwardItems::Yes ? true : false); |
| 947 | } |
| 948 | |
| 949 | unsigned WebBackForwardListWrapper::backListCountForAPI() const |
| 950 | { |
| 951 | return m_impl->backListCountForAPI(); |
| 952 | } |
| 953 | |
| 954 | unsigned WebBackForwardListWrapper::forwardListCountForAPI() const |
| 955 | { |
| 956 | return m_impl->forwardListCountForAPI(); |
| 957 | } |
| 958 | |
| 959 | Ref<API::Array> WebBackForwardListWrapper::backList() const |
| 960 | { |
| 961 | return backListAsAPIArrayWithLimit(backListCountForAPI()); |
| 962 | } |
| 963 | |
| 964 | Ref<API::Array> WebBackForwardListWrapper::forwardList() const |
| 965 | { |
| 966 | return forwardListAsAPIArrayWithLimit(forwardListCountForAPI()); |
| 967 | } |
| 968 | |
| 969 | Ref<API::Array> WebBackForwardListWrapper::backListAsAPIArrayWithLimit(unsigned limit) const |
| 970 | { |
| 971 | return m_impl->backListAsAPIArrayWithLimit(limit); |
| 972 | } |
| 973 | |
| 974 | Ref<API::Array> WebBackForwardListWrapper::forwardListAsAPIArrayWithLimit(unsigned limit) const |
| 975 | { |
| 976 | return m_impl->forwardListAsAPIArrayWithLimit(limit); |
| 977 | } |
| 978 | |
| 979 | void WebBackForwardListWrapper::removeAllItems() |
| 980 | { |
| 981 | m_impl->removeAllItems(); |
| 982 | } |
| 983 | |
| 984 | void WebBackForwardListWrapper::clear() |
| 985 | { |
| 986 | m_impl->clear(); |
| 987 | } |
| 988 | |
| 989 | String WebBackForwardListWrapper::loggingString() |
| 990 | { |
| 991 | return String::fromUTF8WithLatin1Fallback(std::string(m_impl->loggingString())); |
| 992 | } |
| 993 | |
| 994 | #endif // ENABLE(BACK_FORWARD_LIST_SWIFT) |
| 995 | |
| 996 | } // namespace WebKit |
| 997 | |
| 998 | #if ENABLE(BACK_FORWARD_LIST_SWIFT)(defined 0 && 0) |
| 999 | |
| 1000 | WebCore::BackForwardFrameItemIdentifier generateBackForwardFrameItemIdentifier() |
| 1001 | { |
| 1002 | return WebCore::BackForwardFrameItemIdentifier::generate(); |
| 1003 | } |
| 1004 | |
| 1005 | // rdar://168139823 is the task of doing a productionized version of WebKit Swift logging |
| 1006 | void doLog(const WTF::String& msg) |
| 1007 | { |
| 1008 | LOG(BackForward, "%s", msg.utf8().data())((void)0); |
| 1009 | } |
| 1010 | |
| 1011 | void doLoadingReleaseLog(const WTF::String& msg) |
| 1012 | { |
| 1013 | RELEASE_LOG(Loading, "%s", msg.utf8().data())clang diagnostic push
clang diagnostic ignored "-Wunknown-warning-option" clang diagnostic ignored "-Wunsafe-buffer-usage" clang diagnostic ignored "-Wunsafe-buffer-usage-in-libc-call" clang diagnostic ignored "-Wunsafe-buffer-usage-in-format-attr-call" [[clang ::suppress]] __extension__({ os_log_t _log_tmp = (WebKit2LogLoading .osLogChannel); os_log_type_t _type_tmp = (OS_LOG_TYPE_DEFAULT ); if (os_log_type_enabled(_log_tmp, _type_tmp)) { __extension__ ({ clang diagnostic push clang diagnostic ignored "-Wvla" clang diagnostic error "-Wformat" _Static_assert(__builtin_constant_p ("%s"), "format/label/description argument must be a string constant" ); __attribute__((section("__TEXT,__oslogstring,cstring_literals" ),internal_linkage)) static const char _os_fmt_str[] __asm("LOS_LOG16" ) = "%s"; uint8_t _Alignas(16) __attribute__((uninitialized)) _os_fmt_buf[__builtin_os_log_format_buffer_size("%s", msg.utf8 ().data())]; _os_log_impl(&__dso_handle, _log_tmp, _type_tmp , _os_fmt_str, (uint8_t *)__builtin_os_log_format(_os_fmt_buf , "%s", msg.utf8().data()), (uint32_t)sizeof(_os_fmt_buf)) clang diagnostic pop ; }); } }) clang diagnostic pop ; |
| 1014 | } |
| 1015 | // rdar://168139740 is the task of doing a productionized Swift MESSAGE_CHECK |
| 1016 | void messageCheckFailed(Ref<WebKit::WebProcessProxy> process) |
| 1017 | { |
| 1018 | MESSAGE_CHECK_BASE(false, process->connection())do { if (!(false)) [[unlikely]] { os_fault_with_payload(31, 0 , nullptr, 0, makeString("/Volumes/Data/worker/macOS-Safer-CPP-Checks-EWS/build/Source/WebKit/UIProcess/WebBackForwardList.cpp" " " "1018" ": Invalid message dispatched "_s, unsafeSpan(__PRETTY_FUNCTION__ )).utf8().data(), 0); IPC::markCurrentlyDispatchedMessageAsInvalid (process->connection(), "Message check failed: " "false"_s ); if (IPC::Connection::shouldCrashOnMessageCheckFailure()) { do { __asm__ volatile ("brk #0xc471"); __builtin_unreachable (); } while (0); } { (void)0; } return; } } while (0); |
| 1019 | } |
| 1020 | |
| 1021 | // Workarounds for rdar://171011011 |
| 1022 | void appendToBackForwardStateItems(Vector<WebKit::BackForwardListItemState>& items, const WebKit::WebBackForwardListItem& entry) |
| 1023 | { |
| 1024 | items.append({ entry.copyMainFrameStateWithChildren(), entry.navigatedFrameID() }); |
| 1025 | } |
| 1026 | |
| 1027 | Ref<WebKit::WebBackForwardListItem> createItemFromState(const WebKit::BackForwardListItemState& itemState, WebKit::WebPageProxyIdentifier pageIdentifier) |
| 1028 | { |
| 1029 | Ref stateCopy = itemState.frameState->copy(); |
| 1030 | setBackForwardItemIdentifiers(stateCopy, WebCore::BackForwardItemIdentifier::generate()); |
| 1031 | return WebKit::WebBackForwardListItem::create(WTF::move(stateCopy), pageIdentifier, itemState.navigatedFrameID); |
| 1032 | } |
| 1033 | |
| 1034 | |
| 1035 | #endif // ENABLE(BACK_FORWARD_LIST_SWIFT) |