WKWebview getAllCookies在iOS 11.3中崩溃 [英] WKWebview getAllCookies crash in iOS 11.3

问题描述

我们最近已迁移到WKWebview.我们已经添加了一个cookie更改侦听器，以获取更新的cookie并更新我们自己的商店.

We have recently migrated to WKWebview. We have added a listener for cookie change, to get the updated cookies and update our own store.

- (void)cookiesDidChangeInCookieStore:(WKHTTPCookieStore *)cookieStore {
    [cookieStore getAllCookies:^(NSArray* cookies) {
    }];
}

加载控制器后，它将调用cookiesDidChangeInCookieStore并在"getAllCookies"处崩溃.但是此崩溃仅在TestFlight/Fabric构建中发生.当我直接从xcode在设备上运行应用程序时(在调试和发布模式下)都不会发生.下面是崩溃报告，

Once the controller is loaded, it calls cookiesDidChangeInCookieStore and crashes at "getAllCookies".But this crash happens only in TestFlight/Fabric build. Doesn't happen when i run the app directly on device from xcode (both in debug and release mode). Below is the crash report,

Thread 9 name:  WebThread
Thread 9 Crashed:
0   WebKit                          0x0000000192fbfc10 WebKit::CallbackMap::put+ 1186832 (WTF::Ref<WebKit::CallbackBase, WTF::DumbPtrTraits<WebKit::CallbackBase> >&&) + 128
1   WebKit                          0x0000000192fbfbb4 WebKit::CallbackMap::put+ 1186740 (WTF::Ref<WebKit::CallbackBase, WTF::DumbPtrTraits<WebKit::CallbackBase> >&&) + 36
2   WebKit                          0x00000001930490cc WebKit::CallbackID WebKit::CallbackMap::put<WTF::Vector<WebCore::Cookie, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, WebKit::CallbackBase::Error>(WTF::Function<void + 1749196 (WTF::Vector<WebCore::Cookie, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, WebKit::CallbackBase::Error)>&&) + 136
3   WebKit                          0x0000000193049008 WebKit::WebCookieManagerProxy::getAllCookies(PAL::SessionID, WTF::Function<void + 1749000 (WTF::Vector<WebCore::Cookie, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, WebKit::CallbackBase::Error)>&&) + 44
4   WebKit                          0x0000000192eb5b90 API::HTTPCookieStore::cookies(WTF::Function<void + 97168 (WTF::Vector<WebCore::Cookie, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&)>&&) + 124
5   WebKit                          0x00000001931fbdf8 -[WKHTTPCookieStore getAllCookies:] + 92
6   WebKit                          0x00000001931fc96c WKHTTPCookieStoreObserver::cookiesDidChange+ 3533164 (API::HTTPCookieStore&) + 44
7   WebKit                          0x0000000192eb61b0 API::HTTPCookieStore::cookiesDidChange+ 98736 () + 72
8   JavaScriptCore                  0x000000018a0e17d4 WTF::dispatchFunctionsFromMainThread+ 6100 () + 344
9   JavaScriptCore                  0x000000018a208650 WTF::timerFired+ 1214032 (__CFRunLoopTimer*, void*) + 40
10  CoreFoundation                  0x0000000183527aa8 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 28
11  CoreFoundation                  0x000000018352776c __CFRunLoopDoTimer + 864
12  CoreFoundation                  0x0000000183527010 __CFRunLoopDoTimers + 248
13  CoreFoundation                  0x0000000183524b60 __CFRunLoopRun + 2168
14  CoreFoundation                  0x0000000183444da8 CFRunLoopRunSpecific + 552
15  WebCore                         0x000000018b6d1dcc RunWebThread+ 265676 (void*) + 592
16  libsystem_pthread.dylib         0x00000001831a5220 _pthread_body + 272
17  libsystem_pthread.dylib         0x00000001831a5110 _pthread_body + 0
18  libsystem_pthread.dylib         0x00000001831a3b10 thread_start + 4

调用getAllCookies时似乎有溢出.这仅在iOS 11.3中发生.

Looks like there is an overflow when getAllCookies is called.This happens only in iOS 11.3.

推荐答案

我能够通过在主线程中异步调用getAllCookies来解决此崩溃问题.

I was able to fix this crash by calling getAllCookies asynchronously in the main thread.

func cookiesDidChange(in cookieStore: WKHTTPCookieStore) {
     DispatchQueue.main.async {
         cookieStore.getAllCookies { (cookies) in
             //Code here...
         })
     }
}

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