[webkit-changes] [WebKit/WebKit] 5a1eb5: Use a timer to purged old matched rules

[Brian Weinstein]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 5a1eb5d9c5cec2c7f696dc953963f56f246dc699
      https://github.com/WebKit/WebKit/commit/5a1eb5d9c5cec2c7f696dc953963f56f246dc699
  Author: Brian Weinstein <bweinstein at apple.com>
  Date:   2023-12-06 (Wed, 06 Dec 2023)

  Changed paths:
    M Source/WebKit/UIProcess/Extensions/Cocoa/WebExtensionContextCocoa.mm
    M Source/WebKit/UIProcess/Extensions/Cocoa/WebExtensionControllerCocoa.mm
    M Source/WebKit/UIProcess/Extensions/WebExtensionContext.h
    M Source/WebKit/UIProcess/Extensions/WebExtensionController.h
    M Source/WebKit/WebProcess/Extensions/API/Cocoa/WebExtensionAPIDeclarativeNetRequestCocoa.mm

  Log Message:
  -----------
  Use a timer to purged old matched rules
https://bugs.webkit.org/show_bug.cgi?id=265950
rdar://118940129

Reviewed by Timothy Hatcher.

When a content rule list notification is saved as a matched rule by an extension, start a repeating 5 minute timer to purge
any rules that are older than 5 minutes.

If after the purge there aren't any remaining saved rules, stop the timer.

* Source/WebKit/UIProcess/Extensions/Cocoa/WebExtensionContextCocoa.mm:
(WebKit::WebExtensionContext::handleContentRuleListNotificationForTab): This now returns a bool representing if the
notification was saved as a matched rule.
(WebKit::WebExtensionContext::purgeMatchedRulesFromBefore): Iterate over the rules and remove any that were from before the given
start time.
* Source/WebKit/UIProcess/Extensions/Cocoa/WebExtensionControllerCocoa.mm:
(WebKit::WebExtensionController::handleContentRuleListNotification): Start a timer if the action was saved and there wasn't a timer
started already.
(WebKit::WebExtensionController::purgeOldMatchedRules): Iterate over all of the extensions and call purgeMatchedRulesFromBefore.
* Source/WebKit/UIProcess/Extensions/WebExtensionContext.h:
* Source/WebKit/UIProcess/Extensions/WebExtensionController.h:
* Source/WebKit/WebProcess/Extensions/API/Cocoa/WebExtensionAPIDeclarativeNetRequestCocoa.mm:
(WebKit::WebExtensionAPIDeclarativeNetRequest::getMatchedRules): Remove an extra newline.

Canonical link: https://commits.webkit.org/271629@main