Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 5e5ea2a419109ebcc919759ca43bccfff4f9c555
https://github.com/WebKit/WebKit/commit/5e5ea2a419109ebcc919759ca43bccfff4f9c555
Author: Per Arne Vollan <pvol...@apple.com>
Date: 2025-08-19 (Tue, 19 Aug 2025)
Changed paths:
M Source/WebKit/Shared/Cocoa/SandboxExtensionCocoa.mm
M Source/WebKit/Shared/SandboxExtension.h
M Source/WebKit/UIProcess/WebPageProxy.cpp
M Source/WebKit/UIProcess/WebProcessPool.cpp
M Source/WebKit/UIProcess/WebProcessProxy.cpp
M Source/WebKit/UIProcess/WebProcessProxy.h
Log Message:
-----------
In some cases, we can't follow file:// links from a local file
rdar://156619146
https://bugs.webkit.org/show_bug.cgi?id=296808
Reviewed by Sihui Liu.
When dropping a local file in a WKWebView or in the chrome of the embedding
application, WebKit is normally only provided with a
temporary sandbox extension to that location in the UI process by the system or
embedding application. If we later visit the same
local file URL, either by going back/forward in history, or manually entering
the file URL in the address field, we are no longer
able to create a sandbox extension to that location for the WebContent process,
since the temporary sandbox extension has been
revoked in the UI process. To address this, we add a sandbox extension cache in
the process proxy, which lets us send a sandbox
extension to the WebContent process in these cases. This requires the
SandboxExtensionHandle class to be copyable.
* Source/WebKit/UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::maybeInitializeSandboxExtensionHandle):
* Source/WebKit/UIProcess/WebProcessPool.cpp:
(WebKit::WebProcessPool::handleMemoryPressureWarning):
* Source/WebKit/UIProcess/WebProcessPool.h:
* Source/WebKit/UIProcess/WebProcessProxy.cpp:
(WebKit::WebProcessProxy::sandboxExtensionForFile const):
(WebKit::WebProcessProxy::addSandboxExtensionForFile):
(WebKit::WebProcessProxy::clearSandboxExtensions):
* Source/WebKit/UIProcess/WebProcessProxy.h:
Canonical link: https://commits.webkit.org/298934@main
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