Title: [203508] trunk
Revision
203508
Author
commit-qu...@webkit.org
Date
2016-07-21 10:01:10 -0700 (Thu, 21 Jul 2016)

Log Message

WebBackForwardList's currentIndex could get out of bounds when filtering items.
https://bugs.webkit.org/show_bug.cgi?id=159986

Source/WebKit2:

When generating a new BackForwardListState object, if we filter out multiple items in the list, the currentIndex could get
out of bounds.

Patch by Yongjun Zhang <yongjun_zh...@apple.com> on 2016-07-21
Reviewed by Dan Bernstein.

* UIProcess/WebBackForwardList.cpp:
(WebKit::WebBackForwardList::backForwardListState): Make currentIndex point to the last item if it is out of bounds.

Tools:

Add a test to verify filtering out 2 items from a 3-item list will set the currentIndex
to 0.

Patch by Yongjun Zhang <yongjun_zh...@apple.com> on 2016-07-21
Reviewed by Dan Bernstein.

* TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj:
* TestWebKitAPI/Tests/WebKit2/WKBackForwardList.mm: Added.
(-[WKBackForwardListTestNavigationDelegate webView:didFinishNavigation:]):
(TEST):

Modified Paths

Added Paths

Diff

Modified: trunk/Source/WebKit2/ChangeLog (203507 => 203508)


--- trunk/Source/WebKit2/ChangeLog	2016-07-21 16:59:33 UTC (rev 203507)
+++ trunk/Source/WebKit2/ChangeLog	2016-07-21 17:01:10 UTC (rev 203508)
@@ -1,3 +1,16 @@
+2016-07-21  Yongjun Zhang  <yongjun_zh...@apple.com>
+
+        WebBackForwardList's currentIndex could get out of bounds when filtering items.
+        https://bugs.webkit.org/show_bug.cgi?id=159986
+
+        When generating a new BackForwardListState object, if we filter out multiple items in the list, the currentIndex could get
+        out of bounds.
+
+        Reviewed by Dan Bernstein.
+
+        * UIProcess/WebBackForwardList.cpp:
+        (WebKit::WebBackForwardList::backForwardListState): Make currentIndex point to the last item if it is out of bounds.
+
 2016-07-21  Joseph Pecoraro  <pecor...@apple.com>
 
         Web Automation: Allow _javascript_ evaluation to return an InvalidElementState error

Modified: trunk/Source/WebKit2/UIProcess/WebBackForwardList.cpp (203507 => 203508)


--- trunk/Source/WebKit2/UIProcess/WebBackForwardList.cpp	2016-07-21 16:59:33 UTC (rev 203507)
+++ trunk/Source/WebKit2/UIProcess/WebBackForwardList.cpp	2016-07-21 17:01:10 UTC (rev 203508)
@@ -416,6 +416,8 @@
 
     if (backForwardListState.items.isEmpty())
         backForwardListState.currentIndex = Nullopt;
+    else if (backForwardListState.items.size() <= backForwardListState.currentIndex.value())
+        backForwardListState.currentIndex = backForwardListState.items.size() - 1;
 
     return backForwardListState;
 }

Modified: trunk/Tools/ChangeLog (203507 => 203508)


--- trunk/Tools/ChangeLog	2016-07-21 16:59:33 UTC (rev 203507)
+++ trunk/Tools/ChangeLog	2016-07-21 17:01:10 UTC (rev 203508)
@@ -1,3 +1,18 @@
+2016-07-21  Yongjun Zhang  <yongjun_zh...@apple.com>
+
+        WebBackForwardList's currentIndex could get out of bounds when filtering items.
+        https://bugs.webkit.org/show_bug.cgi?id=159986
+
+        Add a test to verify filtering out 2 items from a 3-item list will set the currentIndex
+        to 0.
+
+        Reviewed by Dan Bernstein.
+
+        * TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj:
+        * TestWebKitAPI/Tests/WebKit2/WKBackForwardList.mm: Added.
+        (-[WKBackForwardListTestNavigationDelegate webView:didFinishNavigation:]):
+        (TEST):
+
 2016-07-21  Carlos Garcia Campos  <cgar...@igalia.com>
 
         [GTK] Web view background colors don't work in accelerated compositing mode

Modified: trunk/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj (203507 => 203508)


--- trunk/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj	2016-07-21 16:59:33 UTC (rev 203507)
+++ trunk/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj	2016-07-21 17:01:10 UTC (rev 203508)
@@ -38,6 +38,7 @@
 		1C2B81831C891F0900A5529F /* CancelFontSubresourcePlugIn.mm in Sources */ = {isa = PBXBuildFile; fileRef = 1C2B81811C891EFA00A5529F /* CancelFontSubresourcePlugIn.mm */; };
 		1C2B81861C89259D00A5529F /* webfont.html in Copy Resources */ = {isa = PBXBuildFile; fileRef = 1C2B81841C8924A200A5529F /* webfont.html */; };
 		1C2B81871C8925A000A5529F /* Ahem.ttf in Copy Resources */ = {isa = PBXBuildFile; fileRef = 1C2B81851C89252300A5529F /* Ahem.ttf */; };
+		1F83571B1D3FFB2300E3967B /* WKBackForwardList.mm in Sources */ = {isa = PBXBuildFile; fileRef = 1F83571A1D3FFB0E00E3967B /* WKBackForwardList.mm */; };
 		26DF5A6315A2A27E003689C2 /* CancelLoadFromResourceLoadDelegate.html in Copy Resources */ = {isa = PBXBuildFile; fileRef = 26DF5A6115A2A22B003689C2 /* CancelLoadFromResourceLoadDelegate.html */; };
 		26F52EAD1828827B0023D412 /* geolocationGetCurrentPosition.html in Copy Resources */ = {isa = PBXBuildFile; fileRef = 26F52EAC1828820E0023D412 /* geolocationGetCurrentPosition.html */; };
 		26F52EAF18288C230023D412 /* geolocationGetCurrentPositionWithHighAccuracy.html in Copy Resources */ = {isa = PBXBuildFile; fileRef = 26F52EAE18288C040023D412 /* geolocationGetCurrentPositionWithHighAccuracy.html */; };
@@ -651,6 +652,7 @@
 		1C2B81851C89252300A5529F /* Ahem.ttf */ = {isa = PBXFileReference; lastKnownFileType = file; path = Ahem.ttf; sourceTree = "<group>"; };
 		1CB9BC371A67482300FE5678 /* WeakPtr.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = WeakPtr.cpp; sourceTree = "<group>"; };
 		1CF0D3781BBF2F3D00B4EF54 /* WKRetainPtr.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = WKRetainPtr.cpp; sourceTree = "<group>"; };
+		1F83571A1D3FFB0E00E3967B /* WKBackForwardList.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = WKBackForwardList.mm; path = Tests/WebKit2/WKBackForwardList.mm; sourceTree = SOURCE_ROOT; };
 		260BA5781B1D2E7B004FA07C /* DFACombiner.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = DFACombiner.cpp; sourceTree = "<group>"; };
 		260BA57A1B1D2EE2004FA07C /* DFAHelpers.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DFAHelpers.h; sourceTree = "<group>"; };
 		261516D515B0E60500A2C201 /* SetAndUpdateCacheModel.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = SetAndUpdateCacheModel.mm; sourceTree = "<group>"; };
@@ -1249,6 +1251,7 @@
 				0F3B94A51A77266C00DE3272 /* WKWebViewEvaluateJavaScript.mm */,
 				9984FACA1CFFAEEE008D198C /* WKWebViewTextInput.mm */,
 				51714EB61CF8C7A4004723C4 /* WebProcessKillIDBCleanup.mm */,
+				1F83571A1D3FFB0E00E3967B /* WKBackForwardList.mm */,
 			);
 			name = "WebKit2 Cocoa";
 			path = WebKit2Cocoa;
@@ -2211,6 +2214,7 @@
 				7CCE7F2C1A411B1000447C4C /* PreventImageLoadWithAutoResizing.mm in Sources */,
 				7CCE7F0C1A411AE600447C4C /* PrivateBrowsingPushStateNoHistoryCallback.cpp in Sources */,
 				7CCE7EC81A411A7E00447C4C /* PublicSuffix.mm in Sources */,
+				1F83571B1D3FFB2300E3967B /* WKBackForwardList.mm in Sources */,
 				7C83E0511D0A641800FEBCF3 /* ParsedContentRange.cpp in Sources */,
 				46C519DA1D355AB200DAA51A /* LocalStorageNullEntries.mm in Sources */,
 				7C3965061CDD74F90094DBB8 /* Color.cpp in Sources */,

Added: trunk/Tools/TestWebKitAPI/Tests/WebKit2/WKBackForwardList.mm (0 => 203508)


--- trunk/Tools/TestWebKitAPI/Tests/WebKit2/WKBackForwardList.mm	                        (rev 0)
+++ trunk/Tools/TestWebKitAPI/Tests/WebKit2/WKBackForwardList.mm	2016-07-21 17:01:10 UTC (rev 203508)
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2016 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import "config.h"
+#import "PlatformUtilities.h"
+#import "Test.h"
+
+#import <WebKit/WKBackForwardListPrivate.h>
+#import <WebKit/WKNavigationDelegate.h>
+#import <WebKit/WKNavigationPrivate.h>
+#import <WebKit/WKWebViewPrivate.h>
+#import <WebKit/_WKSessionState.h>
+#import <wtf/RetainPtr.h>
+
+#if WK_API_ENABLED
+
+static bool isDone;
+
+@interface WKBackForwardListTestNavigationDelegate : NSObject <WKNavigationDelegate>
+@end
+
+@implementation WKBackForwardListTestNavigationDelegate
+
+- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation
+{
+    isDone = true;
+}
+
+@end
+
+static NSString *loadableURL1 = @"data:text/html,no%20error%20A";
+static NSString *loadableURL2 = @"data:text/html,no%20error%20B";
+static NSString *loadableURL3 = @"data:text/html,no%20error%20C";
+
+TEST(WKBackForwardList, RemoveCurrentItem)
+{
+    auto webView = adoptNS([[WKWebView alloc] init]);
+    auto controller = adoptNS([[WKBackForwardListTestNavigationDelegate alloc] init]);
+    [webView setNavigationDelegate:controller.get()];
+
+    [webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:loadableURL1]]];
+    TestWebKitAPI::Util::run(&isDone);
+    isDone = false;
+
+    [webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:loadableURL2]]];
+    TestWebKitAPI::Util::run(&isDone);
+    isDone = false;
+
+    [webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:loadableURL3]]];
+    TestWebKitAPI::Util::run(&isDone);
+    isDone = false;
+
+    WKBackForwardList *list = [webView backForwardList];
+    EXPECT_EQ((NSUInteger)2, list.backList.count);
+    EXPECT_EQ((NSUInteger)0, list.forwardList.count);
+    EXPECT_STREQ([[list.currentItem URL] absoluteString].UTF8String, loadableURL3.UTF8String);
+
+    _WKSessionState *sessionState = [webView _sessionStateWithFilter:^BOOL(WKBackForwardListItem *item)
+    {
+        return [item.URL isEqual:[NSURL URLWithString:loadableURL2]];
+    }];
+
+    [webView _restoreSessionState:sessionState andNavigate:NO];
+
+    WKBackForwardList *newList = [webView backForwardList];
+
+    EXPECT_EQ((NSUInteger)0, newList.backList.count);
+    EXPECT_EQ((NSUInteger)0, newList.forwardList.count);
+    EXPECT_STREQ([[newList.currentItem URL] absoluteString].UTF8String, loadableURL2.UTF8String);
+}
+
+#endif
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