Attachment 371075 Details for Bug 198318 – Patch

[patch] Patch

bug-198318-20190531121701.patch (text/plain), 88.37 KB, created by Tim Horton on 2019-05-31 12:17:02 PDT

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Creator: Tim Horton

Created: 2019-05-31 12:17:02 PDT

Size: 88.37 KB

patch

obsolete

>Subversion Revision: 245863
>diff --git a/Source/WTF/ChangeLog b/Source/WTF/ChangeLog
>index 810e18d4d920aebf1eecac59ffce9b046af9123d..8c9e66e97dc959f6b9363b4728e023bbcde033a8 100644
>--- a/Source/WTF/ChangeLog
>+++ b/Source/WTF/ChangeLog
>@@ -1,3 +1,15 @@
>+2019-05-30  Tim Horton  <timothy_horton@apple.com>
>+
>+        Optionally respect device management restrictions when loading from the network
>+        https://bugs.webkit.org/show_bug.cgi?id=198318
>+        <rdar://problem/44263806>
>+
>+        Reviewed by Alex Christensen.
>+
>+        * wtf/Platform.h:
>+        Add a HAVE flag for DeviceManagement.framework.
>+        It does exist in the simulator, but does not function; pretend it doesn't exist.
>+
> 2019-05-29  Ryan Haddad  <ryanhaddad@apple.com>
> 
>         Unreviewed, rolling out r245857.
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index b9caceeec616f0f7836228566437c414f6c6a518..1f26c3b9237cf0e699dfa38bed12ae5954cfacea 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,13 @@
>+2019-05-30  Tim Horton  <timothy_horton@apple.com>
>+
>+        Optionally respect device management restrictions when loading from the network
>+        https://bugs.webkit.org/show_bug.cgi?id=198318
>+        <rdar://problem/44263806>
>+
>+        Reviewed by Alex Christensen.
>+
>+        * en.lproj/Localizable.strings:
>+
> 2019-05-29  Ryan Haddad  <ryanhaddad@apple.com>
> 
>         Unreviewed, rolling out r245857.
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index a5d19974be7797e3f76a4783617ccde4ce9696ac..dba0af857d69f435e913d1e4eb4cc78c253c90b3 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,115 @@
>+2019-05-30  Tim Horton  <timothy_horton@apple.com>
>+
>+        Optionally respect device management restrictions when loading from the network
>+        https://bugs.webkit.org/show_bug.cgi?id=198318
>+        <rdar://problem/44263806>
>+
>+        Reviewed by Alex Christensen.
>+
>+        * Configurations/Network-iOS.entitlements:
>+        * Resources/SandboxProfiles/ios/com.apple.WebKit.Networking.sb:
>+        Add some entitlements and sandbox holes required to talk to DeviceManagement.
>+
>+        * NetworkProcess/NetworkCORSPreflightChecker.cpp:
>+        (WebKit::NetworkCORSPreflightChecker::wasBlockedByRestrictions):
>+        * NetworkProcess/NetworkCORSPreflightChecker.h:
>+        * NetworkProcess/NetworkLoad.cpp:
>+        (WebKit::NetworkLoad::wasBlockedByRestrictions):
>+        * NetworkProcess/NetworkLoad.h:
>+        * NetworkProcess/PingLoad.cpp:
>+        (WebKit::PingLoad::wasBlockedByRestrictions):
>+        * NetworkProcess/PingLoad.h:
>+        * Shared/WebErrors.cpp:
>+        (WebKit::wasBlockedByRestrictionsError):
>+        * Shared/WebErrors.h:
>+        * NetworkProcess/NetworkDataTask.cpp:
>+        (WebKit::NetworkDataTask::create):
>+        (WebKit::NetworkDataTask::failureTimerFired):
>+        * NetworkProcess/NetworkDataTask.h:
>+        * Shared/API/APIError.h:
>+        * Shared/API/c/WKErrorRef.cpp:
>+        (WKErrorGetErrorCode):
>+        * Shared/API/c/WKErrorRef.h:
>+        Plumb a new error for loads that are blocked by device management restrictions.
>+
>+        * NetworkProcess/NetworkLoadParameters.h:
>+        * NetworkProcess/NetworkResourceLoadParameters.cpp:
>+        (WebKit::NetworkResourceLoadParameters::encode const):
>+        (WebKit::NetworkResourceLoadParameters::decode):
>+        * WebProcess/Network/WebLoaderStrategy.cpp:
>+        (WebKit::WebLoaderStrategy::scheduleLoadFromNetworkProcess):
>+        Plumb a new bit that indicates whether a load is for the main resource of a frame.
>+        We will only apply device management restrictions to main resources.
>+
>+        * NetworkProcess/NetworkSessionCreationParameters.cpp:
>+        (WebKit::NetworkSessionCreationParameters::privateSessionParameters):
>+        (WebKit::NetworkSessionCreationParameters::encode const):
>+        (WebKit::NetworkSessionCreationParameters::decode):
>+        * NetworkProcess/NetworkSessionCreationParameters.h:
>+        * UIProcess/WebsiteData/Cocoa/WebsiteDataStoreCocoa.mm:
>+        (WebKit::WebsiteDataStore::parameters):
>+        Plumb a new bit indicating whether a network session should respect device mangement
>+        restrictions.
>+
>+        * NetworkProcess/cocoa/NetworkDataTaskCocoa.h:
>+        * NetworkProcess/cocoa/NetworkDataTaskCocoa.mm:
>+        (WebKit::NetworkDataTaskCocoa::NetworkDataTaskCocoa):
>+        (WebKit::NetworkDataTaskCocoa::resume):
>+        Defer resuming the load until we have a reply from DeviceManagement framework
>+        about whether the URL should be blocked. If it is blocked, instead fail the load.
>+
>+        * NetworkProcess/cocoa/NetworkSessionCocoa.h:
>+        * NetworkProcess/cocoa/NetworkSessionCocoa.mm:
>+        (-[WKNetworkSessionDelegate URLSession:dataTask:didReceiveResponse:completionHandler:]):
>+        (WebKit::NetworkSessionCocoa::NetworkSessionCocoa):
>+        (WebKit::NetworkSessionCocoa::deviceManagementPolicyMonitor):
>+        Cache a single DMFWebsitePolicyMonitor instance per NetworkSession.
>+        
>+        * UIProcess/API/APIWebsiteDataStore.cpp:
>+        (API::WebsiteDataStore::defaultDataStoreConfiguration):
>+        The default data store is persistent; its configuration should reflect that.
>+
>+        * UIProcess/API/Cocoa/WKProcessPool.mm:
>+        (-[WKProcessPool _setAllowsAnySSLCertificateForServiceWorker:]): Style.
>+
>+        * UIProcess/API/Cocoa/WKWebsiteDataStore.mm:
>+        (-[WKWebsiteDataStore _initWithConfiguration:]):
>+        Make it possible to create a non-persistent WKWebsiteDataStore from a
>+        configuration, and ensure that it does not have any persistent storage directories set.
>+
>+        * UIProcess/API/Cocoa/_WKWebsiteDataStoreConfiguration.h:
>+        * UIProcess/API/Cocoa/_WKWebsiteDataStoreConfiguration.mm:
>+        (-[_WKWebsiteDataStoreConfiguration init]):
>+        (-[_WKWebsiteDataStoreConfiguration initWithNonPersistentConfiguration]):
>+        (-[_WKWebsiteDataStoreConfiguration isPersistent]):
>+        (-[_WKWebsiteDataStoreConfiguration _setWebStorageDirectory:]):
>+        (-[_WKWebsiteDataStoreConfiguration _setIndexedDBDatabaseDirectory:]):
>+        (-[_WKWebsiteDataStoreConfiguration _setWebSQLDatabaseDirectory:]):
>+        (-[_WKWebsiteDataStoreConfiguration _setCookieStorageFile:]):
>+        (-[_WKWebsiteDataStoreConfiguration _setResourceLoadStatisticsDirectory:]):
>+        (-[_WKWebsiteDataStoreConfiguration _setCacheStorageDirectory:]):
>+        (-[_WKWebsiteDataStoreConfiguration _setServiceWorkerRegistrationDirectory:]):
>+        (-[_WKWebsiteDataStoreConfiguration deviceManagementRestrictionsEnabled]):
>+        (-[_WKWebsiteDataStoreConfiguration setDeviceManagementRestrictionsEnabled:]):
>+        * UIProcess/WebsiteData/WebsiteDataStoreConfiguration.cpp:
>+        (WebKit::WebsiteDataStoreConfiguration::copy):
>+        * UIProcess/WebsiteData/WebsiteDataStoreConfiguration.h:
>+        (WebKit::WebsiteDataStoreConfiguration::isPersistent const):
>+        (WebKit::WebsiteDataStoreConfiguration::setPersistent):
>+        (WebKit::WebsiteDataStoreConfiguration::perOriginStorageQuota const):
>+        (WebKit::WebsiteDataStoreConfiguration::deviceManagementRestrictionsEnabled const):
>+        (WebKit::WebsiteDataStoreConfiguration::setDeviceManagementRestrictionsEnabled):
>+        (WebKit::WebsiteDataStoreConfiguration::perOriginStorageQuota): Deleted.
>+        Make it possible to create a _WKWebsiteDataStoreConfiguration that will create a non-persistent
>+        data store. Add a bit to _WKWebsiteDataStoreConfiguration that controls whether the network 
>+        session will respect device management restrictions.
>+
>+        * WebKit.xcodeproj/project.pbxproj:
>+        * WebKit/NetworkProcess/cocoa/DeviceManagementSoftLink.h:
>+        * WebKit/NetworkProcess/cocoa/DeviceManagementSoftLink.mm:
>+        * WebKit/Platform/spi/Cocoa/DeviceManagementSPI.h:
>+        Add some soft-linking and SPI headers.
>+
> 2019-05-29  Ryan Haddad  <ryanhaddad@apple.com>
> 
>         Unreviewed, rolling out r245857.
>diff --git a/Source/WTF/wtf/Platform.h b/Source/WTF/wtf/Platform.h
>index 447bb18a8f028c29501d3931fb9557a8d53a2607..332eb3e7a8c223d7c091b6eabfaa1d8a8bc24c8d 100644
>--- a/Source/WTF/wtf/Platform.h
>+++ b/Source/WTF/wtf/Platform.h
>@@ -1547,6 +1547,10 @@
> #define HAVE_ROUTE_SHARING_POLICY_LONG_FORM_VIDEO 1
> #endif
> 
>+#if (PLATFORM(IOS) && __IPHONE_OS_VERSION_MIN_REQUIRED >= 120000 && !PLATFORM(IOS_SIMULATOR))
>+#define HAVE_DEVICE_MANAGEMENT 1
>+#endif
>+
> #if PLATFORM(MAC) && __MAC_OS_X_VERSION_MAX_ALLOWED < 101500
> #define USE_REALPATH_FOR_DLOPEN_PREFLIGHT 1
> #endif
>diff --git a/Source/WebCore/en.lproj/Localizable.strings b/Source/WebCore/en.lproj/Localizable.strings
>index f3597a38fca34c81cde6758e1364368f5757af91..a381069736231ec7e8d7ceb7eaec4f2630c0fc32 100644
>--- a/Source/WebCore/en.lproj/Localizable.strings
>+++ b/Source/WebCore/en.lproj/Localizable.strings
>@@ -802,6 +802,9 @@
> /* WebKitErrorFrameLoadBlockedByContentFilter description */
> "The URL was blocked by a content filter" = "The URL was blocked by a content filter";
> 
>+/* WebKitErrorFrameLoadBlockedByRestrictions description */
>+"The URL was blocked by device restrictions" = "The URL was blocked by device restrictions";
>+
> /* WKErrorWebViewInvalidated description */
> "The WKWebView was invalidated" = "The WKWebView was invalidated";
> 
>diff --git a/Source/WebKit/Configurations/Network-iOS.entitlements b/Source/WebKit/Configurations/Network-iOS.entitlements
>index 2ee696638f672e6237da0b7478afe9936b48863a..53dfd56354099ef03091d1d5c594b3f173b28591 100644
>GIT binary patch
>delta 244
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>z$}CGPN!80u&CM^WEG|hbDJ_l{5G+njEJ;euDbXz`%1_J8Nd=0@O#CRr950|bc?P4V
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>literal 578
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>
>diff --git a/Source/WebKit/NetworkProcess/NetworkCORSPreflightChecker.cpp b/Source/WebKit/NetworkProcess/NetworkCORSPreflightChecker.cpp
>index 2b0a1c379ecd8662b0081f4db2ee517905a955c4..94f1277282b95321f6665cd4fb66b792dc8349bf 100644
>--- a/Source/WebKit/NetworkProcess/NetworkCORSPreflightChecker.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkCORSPreflightChecker.cpp
>@@ -163,6 +163,12 @@ void NetworkCORSPreflightChecker::cannotShowURL()
>     m_completionCallback(ResourceError { errorDomainWebKitInternal, 0, m_parameters.originalRequest.url(), "Preflight response was blocked"_s, ResourceError::Type::AccessControl });
> }
> 
>+void NetworkCORSPreflightChecker::wasBlockedByRestrictions()
>+{
>+    RELEASE_LOG_IF_ALLOWED("wasBlockedByRestrictions");
>+    m_completionCallback(ResourceError { errorDomainWebKitInternal, 0, m_parameters.originalRequest.url(), "Preflight response was blocked"_s, ResourceError::Type::AccessControl });
>+}
>+
> NetworkTransactionInformation NetworkCORSPreflightChecker::takeInformation()
> {
>     ASSERT(m_shouldCaptureExtraNetworkLoadMetrics);
>diff --git a/Source/WebKit/NetworkProcess/NetworkCORSPreflightChecker.h b/Source/WebKit/NetworkProcess/NetworkCORSPreflightChecker.h
>index 4d3d169f6af9f43b761081cfbfe60afc5a393fd4..87248f0e0e128493a556e5cfb1c35bd534d91ee3 100644
>--- a/Source/WebKit/NetworkProcess/NetworkCORSPreflightChecker.h
>+++ b/Source/WebKit/NetworkProcess/NetworkCORSPreflightChecker.h
>@@ -72,6 +72,7 @@ private:
>     void didSendData(uint64_t totalBytesSent, uint64_t totalBytesExpectedToSend) final;
>     void wasBlocked() final;
>     void cannotShowURL() final;
>+    void wasBlockedByRestrictions() final;
> 
>     Parameters m_parameters;
>     Ref<NetworkProcess> m_networkProcess;
>diff --git a/Source/WebKit/NetworkProcess/NetworkDataTask.cpp b/Source/WebKit/NetworkProcess/NetworkDataTask.cpp
>index f1f01115d231aabd7de0ed00c0784f188f09cc54..bcbae9d31fbf8e760e4d6ff66001286d0254aa3d 100644
>--- a/Source/WebKit/NetworkProcess/NetworkDataTask.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkDataTask.cpp
>@@ -50,7 +50,7 @@ Ref<NetworkDataTask> NetworkDataTask::create(NetworkSession& session, NetworkDat
> {
>     ASSERT(!parameters.request.url().protocolIsBlob());
> #if PLATFORM(COCOA)
>-    return NetworkDataTaskCocoa::create(session, client, parameters.request, parameters.webFrameID, parameters.webPageID, parameters.storedCredentialsPolicy, parameters.contentSniffingPolicy, parameters.contentEncodingSniffingPolicy, parameters.shouldClearReferrerOnHTTPSToHTTPRedirect, parameters.shouldPreconnectOnly, parameters.isMainFrameNavigation, parameters.networkActivityTracker);
>+    return NetworkDataTaskCocoa::create(session, client, parameters.request, parameters.webFrameID, parameters.webPageID, parameters.storedCredentialsPolicy, parameters.contentSniffingPolicy, parameters.contentEncodingSniffingPolicy, parameters.shouldClearReferrerOnHTTPSToHTTPRedirect, parameters.shouldPreconnectOnly, parameters.isMainFrameNavigation, parameters.isMainResourceNavigationForAnyFrame, parameters.networkActivityTracker);
> #endif
> #if USE(SOUP)
>     return NetworkDataTaskSoup::create(session, client, parameters.request, parameters.storedCredentialsPolicy, parameters.contentSniffingPolicy, parameters.contentEncodingSniffingPolicy, parameters.shouldClearReferrerOnHTTPSToHTTPRedirect, parameters.isMainFrameNavigation);
>@@ -133,6 +133,11 @@ void NetworkDataTask::failureTimerFired()
>         if (m_client)
>             m_client->cannotShowURL();
>         return;
>+    case RestrictedURLFailure:
>+        m_scheduledFailureType = NoFailure;
>+        if (m_client)
>+            m_client->wasBlockedByRestrictions();
>+        return;
>     case NoFailure:
>         ASSERT_NOT_REACHED();
>         break;
>diff --git a/Source/WebKit/NetworkProcess/NetworkDataTask.h b/Source/WebKit/NetworkProcess/NetworkDataTask.h
>index ce7b2ad506365a4328ba573af16170960babfbca..9f5fe1f4b38396490ccb4f4315c42e12beb67d07 100644
>--- a/Source/WebKit/NetworkProcess/NetworkDataTask.h
>+++ b/Source/WebKit/NetworkProcess/NetworkDataTask.h
>@@ -65,6 +65,7 @@ public:
>     virtual void didSendData(uint64_t totalBytesSent, uint64_t totalBytesExpectedToSend) = 0;
>     virtual void wasBlocked() = 0;
>     virtual void cannotShowURL() = 0;
>+    virtual void wasBlockedByRestrictions() = 0;
> 
>     virtual bool shouldCaptureExtraNetworkLoadMetrics() const { return false; }
> 
>@@ -134,7 +135,8 @@ protected:
>     enum FailureType {
>         NoFailure,
>         BlockedFailure,
>-        InvalidURLFailure
>+        InvalidURLFailure,
>+        RestrictedURLFailure
>     };
>     void failureTimerFired();
>     void scheduleFailure(FailureType);
>diff --git a/Source/WebKit/NetworkProcess/NetworkLoad.cpp b/Source/WebKit/NetworkProcess/NetworkLoad.cpp
>index 735f369a1ca06c27c61a830e68177298239dc6bc..9107fec1e34db44881622868622c8fbeb5b3883c 100644
>--- a/Source/WebKit/NetworkProcess/NetworkLoad.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkLoad.cpp
>@@ -276,6 +276,10 @@ void NetworkLoad::cannotShowURL()
>     m_client.get().didFailLoading(cannotShowURLError(m_currentRequest));
> }
> 
>+void NetworkLoad::wasBlockedByRestrictions()
>+{
>+    m_client.get().didFailLoading(wasBlockedByRestrictionsError(m_currentRequest));
>+}
> 
> String NetworkLoad::description() const
> {
>diff --git a/Source/WebKit/NetworkProcess/NetworkLoad.h b/Source/WebKit/NetworkProcess/NetworkLoad.h
>index a5ebab60f72eea3f7191a5586e3a620c24f106cc..d415d04a29bf23f7b5ccf33b8480405983674b6c 100644
>--- a/Source/WebKit/NetworkProcess/NetworkLoad.h
>+++ b/Source/WebKit/NetworkProcess/NetworkLoad.h
>@@ -80,6 +80,7 @@ private:
>     void didSendData(uint64_t totalBytesSent, uint64_t totalBytesExpectedToSend) final;
>     void wasBlocked() final;
>     void cannotShowURL() final;
>+    void wasBlockedByRestrictions() final;
> 
>     void notifyDidReceiveResponse(WebCore::ResourceResponse&&, ResponseCompletionHandler&&);
>     void throttleDelayCompleted();
>diff --git a/Source/WebKit/NetworkProcess/NetworkLoadParameters.h b/Source/WebKit/NetworkProcess/NetworkLoadParameters.h
>index 89730cf9fd2699bcfd32ddc38ef8ce03746a3034..cfb2c75c0cd792a00a505c80b698c160a8021354 100644
>--- a/Source/WebKit/NetworkProcess/NetworkLoadParameters.h
>+++ b/Source/WebKit/NetworkProcess/NetworkLoadParameters.h
>@@ -51,6 +51,7 @@ public:
>     bool shouldClearReferrerOnHTTPSToHTTPRedirect { true };
>     bool needsCertificateInfo { false };
>     bool isMainFrameNavigation { false };
>+    bool isMainResourceNavigationForAnyFrame { false };
>     Vector<RefPtr<WebCore::BlobDataFileReference>> blobFileReferences;
>     PreconnectOnly shouldPreconnectOnly { PreconnectOnly::No };
>     Optional<NetworkActivityTracker> networkActivityTracker;
>diff --git a/Source/WebKit/NetworkProcess/NetworkResourceLoadParameters.cpp b/Source/WebKit/NetworkProcess/NetworkResourceLoadParameters.cpp
>index 33cdc4d17dbe2e0866e3612ef22761a38238059b..0e44594b89e666489aff128f8c51c0c6c1ace249 100644
>--- a/Source/WebKit/NetworkProcess/NetworkResourceLoadParameters.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkResourceLoadParameters.cpp
>@@ -78,6 +78,7 @@ void NetworkResourceLoadParameters::encode(IPC::Encoder& encoder) const
>     encoder << shouldClearReferrerOnHTTPSToHTTPRedirect;
>     encoder << needsCertificateInfo;
>     encoder << isMainFrameNavigation;
>+    encoder << isMainResourceNavigationForAnyFrame;
>     encoder << maximumBufferingTime;
> 
>     encoder << static_cast<bool>(sourceOrigin);
>@@ -169,6 +170,8 @@ bool NetworkResourceLoadParameters::decode(IPC::Decoder& decoder, NetworkResourc
>         return false;
>     if (!decoder.decode(result.isMainFrameNavigation))
>         return false;
>+    if (!decoder.decode(result.isMainResourceNavigationForAnyFrame))
>+        return false;
>     if (!decoder.decode(result.maximumBufferingTime))
>         return false;
> 
>diff --git a/Source/WebKit/NetworkProcess/NetworkSessionCreationParameters.cpp b/Source/WebKit/NetworkProcess/NetworkSessionCreationParameters.cpp
>index 26bf19d9accb993b0af5319b11b275c1e23e4872..90deda42109597b3901d2620cd52fa02fe34f08d 100644
>--- a/Source/WebKit/NetworkProcess/NetworkSessionCreationParameters.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkSessionCreationParameters.cpp
>@@ -50,7 +50,7 @@ NetworkSessionCreationParameters NetworkSessionCreationParameters::privateSessio
> #if USE(CURL)
>         , { }, { }
> #endif
>-        , { }, { }, false, { }, { }, { }, { }, { }
>+        , { }, { }, false, { }, { }, { }, { }, { }, { }, { }
>     };
> }
> 
>@@ -84,7 +84,10 @@ void NetworkSessionCreationParameters::encode(IPC::Encoder& encoder) const
>     encoder << enableResourceLoadStatisticsDebugMode;
>     encoder << resourceLoadStatisticsManualPrevalentResource;
> 
>-    encoder << localStorageDirectory <<  localStorageDirectoryExtensionHandle;
>+    encoder << localStorageDirectory << localStorageDirectoryExtensionHandle;
>+
>+    encoder << deviceManagementRestrictionsEnabled;
>+    encoder << allLoadsBlockedByDeviceManagementRestrictionsForTesting;
> }
> 
> Optional<NetworkSessionCreationParameters> NetworkSessionCreationParameters::decode(IPC::Decoder& decoder)
>@@ -208,6 +211,16 @@ Optional<NetworkSessionCreationParameters> NetworkSessionCreationParameters::dec
>     if (!localStorageDirectoryExtensionHandle)
>         return WTF::nullopt;
> 
>+    Optional<bool> deviceManagementRestrictionsEnabled;
>+    decoder >> deviceManagementRestrictionsEnabled;
>+    if (!deviceManagementRestrictionsEnabled)
>+        return WTF::nullopt;
>+
>+    Optional<bool> allLoadsBlockedByDeviceManagementRestrictionsForTesting;
>+    decoder >> allLoadsBlockedByDeviceManagementRestrictionsForTesting;
>+    if (!allLoadsBlockedByDeviceManagementRestrictionsForTesting)
>+        return WTF::nullopt;
>+
>     return {{
>         sessionID
>         , WTFMove(*boundInterfaceIdentifier)
>@@ -235,6 +248,8 @@ Optional<NetworkSessionCreationParameters> NetworkSessionCreationParameters::dec
>         , WTFMove(*enableResourceLoadStatistics)
>         , WTFMove(*shouldIncludeLocalhostInResourceLoadStatistics)
>         , WTFMove(*enableResourceLoadStatisticsDebugMode)
>+        , WTFMove(*deviceManagementRestrictionsEnabled)
>+        , WTFMove(*allLoadsBlockedByDeviceManagementRestrictionsForTesting)
>         , WTFMove(*resourceLoadStatisticsManualPrevalentResource)
>         , WTFMove(*localStorageDirectory)
>         , WTFMove(*localStorageDirectoryExtensionHandle)
>diff --git a/Source/WebKit/NetworkProcess/NetworkSessionCreationParameters.h b/Source/WebKit/NetworkProcess/NetworkSessionCreationParameters.h
>index 6fc07aed24b40a67daf4c176e4f7dbf15b0b70c5..6559947f00db576fa4184a5697586a3d5ad28021 100644
>--- a/Source/WebKit/NetworkProcess/NetworkSessionCreationParameters.h
>+++ b/Source/WebKit/NetworkProcess/NetworkSessionCreationParameters.h
>@@ -86,6 +86,8 @@ struct NetworkSessionCreationParameters {
>     bool enableResourceLoadStatistics { false };
>     bool shouldIncludeLocalhostInResourceLoadStatistics { true };
>     bool enableResourceLoadStatisticsDebugMode { false };
>+    bool deviceManagementRestrictionsEnabled { false };
>+    bool allLoadsBlockedByDeviceManagementRestrictionsForTesting { false };
>     WebCore::RegistrableDomain resourceLoadStatisticsManualPrevalentResource { };
> 
>     String localStorageDirectory;
>diff --git a/Source/WebKit/NetworkProcess/PingLoad.cpp b/Source/WebKit/NetworkProcess/PingLoad.cpp
>index 21bc7a4e9b23e227151d010e49554d9ccc5f4b2e..fe8f03abf99dbcddaee0db2e56a2c2a73c013ac5 100644
>--- a/Source/WebKit/NetworkProcess/PingLoad.cpp
>+++ b/Source/WebKit/NetworkProcess/PingLoad.cpp
>@@ -200,6 +200,12 @@ void PingLoad::cannotShowURL()
>     didFinish(cannotShowURLError(ResourceRequest { currentURL() }));
> }
> 
>+void PingLoad::wasBlockedByRestrictions()
>+{
>+    RELEASE_LOG_IF_ALLOWED("wasBlockedByRestrictions");
>+    didFinish(wasBlockedByRestrictionsError(ResourceRequest { currentURL() }));
>+}
>+
> void PingLoad::timeoutTimerFired()
> {
>     RELEASE_LOG_IF_ALLOWED("timeoutTimerFired");
>diff --git a/Source/WebKit/NetworkProcess/PingLoad.h b/Source/WebKit/NetworkProcess/PingLoad.h
>index c7e12bb130d049c5d0a597c01fe5bffc8b221bf9..50592b75298e2dd3521cce6800905fb8aaf5cb1d 100644
>--- a/Source/WebKit/NetworkProcess/PingLoad.h
>+++ b/Source/WebKit/NetworkProcess/PingLoad.h
>@@ -58,6 +58,7 @@ private:
>     void didSendData(uint64_t totalBytesSent, uint64_t totalBytesExpectedToSend) final;
>     void wasBlocked() final;
>     void cannotShowURL() final;
>+    void wasBlockedByRestrictions() final;
>     void timeoutTimerFired();
> 
>     void loadRequest(NetworkProcess&, WebCore::ResourceRequest&&);
>diff --git a/Source/WebKit/NetworkProcess/cocoa/DeviceManagementSoftLink.h b/Source/WebKit/NetworkProcess/cocoa/DeviceManagementSoftLink.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..03837a6baf83f8c54741d7f2acd02c68bb079f87
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/cocoa/DeviceManagementSoftLink.h
>@@ -0,0 +1,36 @@
>+/*
>+ * Copyright (C) 2019 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.
>+ */
>+
>+#pragma once
>+
>+#if HAVE(DEVICE_MANAGEMENT)
>+
>+#import "DeviceManagementSPI.h"
>+#import <wtf/SoftLinking.h>
>+
>+SOFT_LINK_FRAMEWORK_FOR_HEADER(WebKit, DeviceManagement);
>+SOFT_LINK_CLASS_FOR_HEADER(WebKit, DMFWebsitePolicyMonitor);
>+
>+#endif // HAVE(DEVICE_MANAGEMENT)
>diff --git a/Source/WebKit/NetworkProcess/cocoa/DeviceManagementSoftLink.mm b/Source/WebKit/NetworkProcess/cocoa/DeviceManagementSoftLink.mm
>new file mode 100644
>index 0000000000000000000000000000000000000000..797c5e0d9071b7e7746021fa8938fe25121e80e0
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/cocoa/DeviceManagementSoftLink.mm
>@@ -0,0 +1,36 @@
>+/*
>+ * Copyright (C) 2019 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"
>+
>+#if HAVE(DEVICE_MANAGEMENT)
>+
>+#import "DeviceManagementSPI.h"
>+#import <wtf/SoftLinking.h>
>+
>+SOFT_LINK_PRIVATE_FRAMEWORK_FOR_SOURCE(WebKit, DeviceManagement);
>+SOFT_LINK_CLASS_FOR_SOURCE(WebKit, DeviceManagement, DMFWebsitePolicyMonitor);
>+
>+#endif // HAVE(DEVICE_MANAGEMENT)
>diff --git a/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.h b/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.h
>index 2dd0e7d46bc719e96fa15074fed00b1c88665658..771b3ab59113e35197bb9ed284d0ecb0e230c6e2 100644
>--- a/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.h
>+++ b/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.h
>@@ -42,9 +42,9 @@ class NetworkSessionCocoa;
> class NetworkDataTaskCocoa final : public NetworkDataTask {
>     friend class NetworkSessionCocoa;
> public:
>-    static Ref<NetworkDataTask> create(NetworkSession& session, NetworkDataTaskClient& client, const WebCore::ResourceRequest& request, uint64_t frameID, WebCore::PageIdentifier pageID, WebCore::StoredCredentialsPolicy storedCredentialsPolicy, WebCore::ContentSniffingPolicy shouldContentSniff, WebCore::ContentEncodingSniffingPolicy shouldContentEncodingSniff, bool shouldClearReferrerOnHTTPSToHTTPRedirect, PreconnectOnly shouldPreconnectOnly, bool dataTaskIsForMainFrameNavigation, Optional<NetworkActivityTracker> networkActivityTracker)
>+    static Ref<NetworkDataTask> create(NetworkSession& session, NetworkDataTaskClient& client, const WebCore::ResourceRequest& request, uint64_t frameID, WebCore::PageIdentifier pageID, WebCore::StoredCredentialsPolicy storedCredentialsPolicy, WebCore::ContentSniffingPolicy shouldContentSniff, WebCore::ContentEncodingSniffingPolicy shouldContentEncodingSniff, bool shouldClearReferrerOnHTTPSToHTTPRedirect, PreconnectOnly shouldPreconnectOnly, bool dataTaskIsForMainFrameNavigation, bool dataTaskIsForMainResourceNavigationForAnyFrame, Optional<NetworkActivityTracker> networkActivityTracker)
>     {
>-        return adoptRef(*new NetworkDataTaskCocoa(session, client, request, frameID, pageID, storedCredentialsPolicy, shouldContentSniff, shouldContentEncodingSniff, shouldClearReferrerOnHTTPSToHTTPRedirect, shouldPreconnectOnly, dataTaskIsForMainFrameNavigation, networkActivityTracker));
>+        return adoptRef(*new NetworkDataTaskCocoa(session, client, request, frameID, pageID, storedCredentialsPolicy, shouldContentSniff, shouldContentEncodingSniff, shouldClearReferrerOnHTTPSToHTTPRedirect, shouldPreconnectOnly, dataTaskIsForMainFrameNavigation, dataTaskIsForMainResourceNavigationForAnyFrame, networkActivityTracker));
>     }
> 
>     ~NetworkDataTaskCocoa();
>@@ -75,7 +75,7 @@ public:
>     String description() const override;
> 
> private:
>-    NetworkDataTaskCocoa(NetworkSession&, NetworkDataTaskClient&, const WebCore::ResourceRequest&, uint64_t frameID, WebCore::PageIdentifier, WebCore::StoredCredentialsPolicy, WebCore::ContentSniffingPolicy, WebCore::ContentEncodingSniffingPolicy, bool shouldClearReferrerOnHTTPSToHTTPRedirect, PreconnectOnly, bool dataTaskIsForMainFrameNavigation, Optional<NetworkActivityTracker>);
>+    NetworkDataTaskCocoa(NetworkSession&, NetworkDataTaskClient&, const WebCore::ResourceRequest&, uint64_t frameID, WebCore::PageIdentifier, WebCore::StoredCredentialsPolicy, WebCore::ContentSniffingPolicy, WebCore::ContentEncodingSniffingPolicy, bool shouldClearReferrerOnHTTPSToHTTPRedirect, PreconnectOnly, bool dataTaskIsForMainFrameNavigation, bool dataTaskIsForMainResourceNavigationForAnyFrame, Optional<NetworkActivityTracker>);
> 
>     bool tryPasswordBasedAuthentication(const WebCore::AuthenticationChallenge&, ChallengeCompletionHandler&);
>     void applySniffingPoliciesAndBindRequestToInferfaceIfNeeded(__strong NSURLRequest*&, bool shouldContentSniff, bool shouldContentEncodingSniff);
>@@ -98,6 +98,8 @@ private:
> #if ENABLE(RESOURCE_LOAD_STATISTICS)
>     bool m_hasBeenSetToUseStatelessCookieStorage { false };
> #endif
>+
>+    bool m_isForMainResourceNavigationForAnyFrame { false };
> };
> 
> WebCore::Credential serverTrustCredential(const WebCore::AuthenticationChallenge&);
>diff --git a/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.mm b/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.mm
>index 28a05e80db685af67b284c842317194f97e87e3e..d9a9b80b0209a325df31b81064e9406f4a70ca66 100644
>--- a/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.mm
>+++ b/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.mm
>@@ -28,6 +28,7 @@
> 
> #import "AuthenticationChallengeDisposition.h"
> #import "AuthenticationManager.h"
>+#import "DeviceManagementSPI.h"
> #import "Download.h"
> #import "DownloadProxyMessages.h"
> #import "Logging.h"
>@@ -39,6 +40,7 @@
> #import <WebCore/NotImplemented.h>
> #import <WebCore/ResourceRequest.h>
> #import <pal/spi/cf/CFNetworkSPI.h>
>+#import <wtf/BlockPtr.h>
> #import <wtf/FileSystem.h>
> #import <wtf/MainThread.h>
> #import <wtf/ProcessPrivilege.h>
>@@ -160,10 +162,11 @@ static void updateTaskWithFirstPartyForSameSiteCookies(NSURLSessionDataTask* tas
> #endif
> }
> 
>-NetworkDataTaskCocoa::NetworkDataTaskCocoa(NetworkSession& session, NetworkDataTaskClient& client, const WebCore::ResourceRequest& requestWithCredentials, uint64_t frameID, WebCore::PageIdentifier pageID, WebCore::StoredCredentialsPolicy storedCredentialsPolicy, WebCore::ContentSniffingPolicy shouldContentSniff, WebCore::ContentEncodingSniffingPolicy shouldContentEncodingSniff, bool shouldClearReferrerOnHTTPSToHTTPRedirect, PreconnectOnly shouldPreconnectOnly, bool dataTaskIsForMainFrameNavigation, Optional<NetworkActivityTracker> networkActivityTracker)
>+NetworkDataTaskCocoa::NetworkDataTaskCocoa(NetworkSession& session, NetworkDataTaskClient& client, const WebCore::ResourceRequest& requestWithCredentials, uint64_t frameID, WebCore::PageIdentifier pageID, WebCore::StoredCredentialsPolicy storedCredentialsPolicy, WebCore::ContentSniffingPolicy shouldContentSniff, WebCore::ContentEncodingSniffingPolicy shouldContentEncodingSniff, bool shouldClearReferrerOnHTTPSToHTTPRedirect, PreconnectOnly shouldPreconnectOnly, bool dataTaskIsForMainFrameNavigation, bool dataTaskIsForMainResourceNavigationForAnyFrame, Optional<NetworkActivityTracker> networkActivityTracker)
>     : NetworkDataTask(session, client, requestWithCredentials, storedCredentialsPolicy, shouldClearReferrerOnHTTPSToHTTPRedirect, dataTaskIsForMainFrameNavigation)
>     , m_frameID(frameID)
>     , m_pageID(pageID)
>+    , m_isForMainResourceNavigationForAnyFrame(dataTaskIsForMainResourceNavigationForAnyFrame)
> {
>     if (m_scheduledFailureType != NoFailure)
>         return;
>@@ -489,6 +492,36 @@ void NetworkDataTaskCocoa::resume()
> {
>     if (m_scheduledFailureType != NoFailure)
>         m_failureTimer.startOneShot(0_s);
>+
>+    auto& cocoaSession = static_cast<NetworkSessionCocoa&>(m_session.get());
>+    if (cocoaSession.deviceManagementRestrictionsEnabled() && m_isForMainResourceNavigationForAnyFrame) {
>+        auto didDetermineDeviceRestrictionPolicyForURL = makeBlockPtr([this, protectedThis = makeRef(*this)](BOOL isBlocked) {
>+            callOnMainThread([this, protectedThis = makeRef(*this), isBlocked] {
>+                if (isBlocked) {
>+                    scheduleFailure(RestrictedURLFailure);
>+                    return;
>+                }
>+
>+                [m_task resume];
>+            });
>+        });
>+
>+#if HAVE(DEVICE_MANAGEMENT)
>+        if (cocoaSession.allLoadsBlockedByDeviceManagementRestrictionsForTesting())
>+            didDetermineDeviceRestrictionPolicyForURL(true);
>+        else {
>+            RetainPtr<NSURL> urlToCheck = [m_task currentRequest].URL;
>+            [cocoaSession.deviceManagementPolicyMonitor() requestPoliciesForWebsites:@[ urlToCheck.get() ] completionHandler:makeBlockPtr([didDetermineDeviceRestrictionPolicyForURL, urlToCheck] (NSDictionary<NSURL *, NSNumber *> *policies, NSError *error) {
>+                bool isBlocked = error || policies[urlToCheck.get()].integerValue != DMFPolicyOK;
>+                didDetermineDeviceRestrictionPolicyForURL(isBlocked);
>+            }).get()];
>+        }
>+#else
>+        didDetermineDeviceRestrictionPolicyForURL(cocoaSession.allLoadsBlockedByDeviceManagementRestrictionsForTesting());
>+#endif
>+        return;
>+    }
>+
>     [m_task resume];
> }
> 
>diff --git a/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.h b/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.h
>index 3d1a49f27325f49675412540057ef110662140b2..2c31d878499bceca19112af3a61a6697b0a2292f 100644
>--- a/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.h
>+++ b/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.h
>@@ -25,6 +25,7 @@
> 
> #pragma once
> 
>+OBJC_CLASS DMFWebsitePolicyMonitor;
> OBJC_CLASS NSData;
> OBJC_CLASS NSURLSession;
> OBJC_CLASS NSURLSessionDownloadTask;
>@@ -69,6 +70,10 @@ public:
> 
>     void continueDidReceiveChallenge(const WebCore::AuthenticationChallenge&, NetworkDataTaskCocoa::TaskIdentifier, NetworkDataTaskCocoa*, CompletionHandler<void(WebKit::AuthenticationChallengeDisposition, const WebCore::Credential&)>&&);
> 
>+    bool deviceManagementRestrictionsEnabled() const { return m_deviceManagementRestrictionsEnabled; }
>+    bool allLoadsBlockedByDeviceManagementRestrictionsForTesting() const { return m_allLoadsBlockedByDeviceManagementRestrictionsForTesting; }
>+    DMFWebsitePolicyMonitor *deviceManagementPolicyMonitor();
>+
> private:
>     NetworkSessionCocoa(NetworkProcess&, NetworkSessionCreationParameters&&);
> 
>@@ -93,6 +98,9 @@ private:
>     String m_sourceApplicationBundleIdentifier;
>     String m_sourceApplicationSecondaryIdentifier;
>     RetainPtr<CFDictionaryRef> m_proxyConfiguration;
>+    RetainPtr<DMFWebsitePolicyMonitor> m_deviceManagementPolicyMonitor;
>+    bool m_deviceManagementRestrictionsEnabled { false };
>+    bool m_allLoadsBlockedByDeviceManagementRestrictionsForTesting { false };
>     bool m_shouldLogCookieInformation { false };
>     Seconds m_loadThrottleLatency;
> };
>diff --git a/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.mm b/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.mm
>index c4ca391df7eb819a686dbbcf01fbcd647cee71db..9f8cf0ec218fa9bdcb721bd2c659b5f04ae2ad8a 100644
>--- a/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.mm
>+++ b/Source/WebKit/NetworkProcess/cocoa/NetworkSessionCocoa.mm
>@@ -51,6 +51,7 @@
> #import <wtf/NeverDestroyed.h>
> #import <wtf/ObjCRuntimeExtras.h>
> #import <wtf/ProcessPrivilege.h>
>+#import <wtf/SoftLinking.h>
> #import <wtf/URL.h>
> #import <wtf/text/WTFString.h>
> 
>@@ -58,6 +59,8 @@
> #include <WebKitAdditions/NetworkSessionCocoaAdditions.h>
> #endif
> 
>+#import "DeviceManagementSoftLink.h"
>+
> using namespace WebKit;
> 
> CFStringRef const WebKit2HTTPProxyDefaultsKey = static_cast<CFStringRef>(@"WebKit2HTTPProxy");
>@@ -713,7 +716,7 @@ - (void)URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)data
>         ASSERT(RunLoop::isMain());
>         
>         // Avoid MIME type sniffing if the response comes back as 304 Not Modified.
>-        int statusCode = [response respondsToSelector:@selector(statusCode)] ? [(id)response statusCode] : 0;
>+        int statusCode = [response isKindOfClass:NSHTTPURLResponse.class] ? [(NSHTTPURLResponse *)response statusCode] : 0;
>         if (statusCode != 304) {
>             bool isMainResourceLoad = networkDataTask->firstRequest().requester() == WebCore::ResourceRequest::Requester::Main;
>             WebCore::adjustMIMETypeIfNecessary(response._CFURLResponse, isMainResourceLoad);
>@@ -981,6 +984,9 @@ NetworkSessionCocoa::NetworkSessionCocoa(NetworkProcess& networkProcess, Network
>     m_statelessSessionDelegate = adoptNS([[WKNetworkSessionDelegate alloc] initWithNetworkSession:*this withCredentials:false]);
>     m_statelessSession = [NSURLSession sessionWithConfiguration:configuration delegate:static_cast<id>(m_statelessSessionDelegate.get()) delegateQueue:[NSOperationQueue mainQueue]];
> 
>+    m_deviceManagementRestrictionsEnabled = parameters.deviceManagementRestrictionsEnabled;
>+    m_allLoadsBlockedByDeviceManagementRestrictionsForTesting = parameters.allLoadsBlockedByDeviceManagementRestrictionsForTesting;
>+
> #if ENABLE(RESOURCE_LOAD_STATISTICS)
>     m_resourceLoadStatisticsDirectory = parameters.resourceLoadStatisticsDirectory;
>     m_shouldIncludeLocalhostInResourceLoadStatistics = parameters.shouldIncludeLocalhostInResourceLoadStatistics ? ShouldIncludeLocalhost::Yes : ShouldIncludeLocalhost::No;
>@@ -1167,4 +1173,17 @@ void NetworkSessionCocoa::continueDidReceiveChallenge(const WebCore::Authenticat
>     networkDataTask->didReceiveChallenge(WTFMove(authenticationChallenge), WTFMove(challengeCompletionHandler));
> }
> 
>+DMFWebsitePolicyMonitor *NetworkSessionCocoa::deviceManagementPolicyMonitor()
>+{
>+#if HAVE(DEVICE_MANAGEMENT)
>+    ASSERT(m_deviceManagementRestrictionsEnabled);
>+    if (!m_deviceManagementPolicyMonitor)
>+        m_deviceManagementPolicyMonitor = adoptNS([allocDMFWebsitePolicyMonitorInstance() initWithPolicyChangeHandler:nil]);
>+    return m_deviceManagementPolicyMonitor.get();
>+#else
>+    RELEASE_ASSERT_NOT_REACHED();
>+    return nil;
>+#endif
>+}
>+
> }
>diff --git a/Source/WebKit/Platform/spi/Cocoa/DeviceManagementSPI.h b/Source/WebKit/Platform/spi/Cocoa/DeviceManagementSPI.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..a1cfd5b5e5e90117706a7858152c89c2b3545d16
>--- /dev/null
>+++ b/Source/WebKit/Platform/spi/Cocoa/DeviceManagementSPI.h
>@@ -0,0 +1,50 @@
>+/*
>+ * Copyright (C) 2019 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.
>+ */
>+
>+#pragma once
>+
>+#if HAVE(DEVICE_MANAGEMENT)
>+
>+#if USE(APPLE_INTERNAL_SDK)
>+
>+#import <DeviceManagement/DeviceManagement.h>
>+
>+#else
>+
>+@interface DMFWebsitePolicyMonitor : NSObject
>+
>+- (instancetype)initWithPolicyChangeHandler:(void(^)(void))changeHandler;
>+- (void)requestPoliciesForWebsites:(NSArray<NSURL *> *)websiteURLs completionHandler:(void (^)(NSDictionary<NSURL *, NSNumber *> *policies, NSError *error))completionHandler;
>+
>+@end
>+
>+typedef NS_ENUM(NSInteger, DMFPolicy) {
>+    DMFPolicyOK = 0,
>+    DMFPolicyBlocked = 4,
>+};
>+
>+#endif // USE(APPLE_INTERNAL_SDK)
>+
>+#endif // HAVE(DEVICE_MANAGEMENT)
>diff --git a/Source/WebKit/Resources/SandboxProfiles/ios/com.apple.WebKit.Networking.sb b/Source/WebKit/Resources/SandboxProfiles/ios/com.apple.WebKit.Networking.sb
>index da60b1bbfe2c960c0ab88e32b82a02d57007052a..80716ec64348bfb448ede6762d4c0dd9c19cdf7f 100644
>--- a/Source/WebKit/Resources/SandboxProfiles/ios/com.apple.WebKit.Networking.sb
>+++ b/Source/WebKit/Resources/SandboxProfiles/ios/com.apple.WebKit.Networking.sb
>@@ -82,6 +82,11 @@
>     (global-name "com.apple.passd.in-app-payment")
>     (global-name "com.apple.passd.library"))
> 
>+(allow mach-lookup
>+    (global-name "com.apple.dmd.policy")
>+    (global-name "com.apple.siri.context.service")
>+    (global-name "com.apple.ctcategories.service"))
>+
> (deny file-write-create
>        (vnode-type SYMLINK))
> 
>diff --git a/Source/WebKit/Shared/API/APIError.h b/Source/WebKit/Shared/API/APIError.h
>index 442d676ed27499f0f2a2bd4cd5472d74139dd3dd..87367cd243158f107dcc3b03ab2a806b79d0d07e 100644
>--- a/Source/WebKit/Shared/API/APIError.h
>+++ b/Source/WebKit/Shared/API/APIError.h
>@@ -65,7 +65,8 @@ public:
>         FrameLoadInterruptedByPolicyChange = 102,
>         CannotUseRestrictedPort = 103,
>         FrameLoadBlockedByContentBlocker = 104,
>-        FrameLoadBlockedByContentFilter = 105
>+        FrameLoadBlockedByContentFilter = 105,
>+        FrameLoadBlockedByRestrictions = 106,
>     };
>     static const WTF::String& webKitPolicyErrorDomain();
> 
>diff --git a/Source/WebKit/Shared/API/c/WKErrorRef.cpp b/Source/WebKit/Shared/API/c/WKErrorRef.cpp
>index 4793a57fd2f154fec71d984b78fb48ad8492912e..e6ce6d94a13782690896ec7b307223400b3fe392 100644
>--- a/Source/WebKit/Shared/API/c/WKErrorRef.cpp
>+++ b/Source/WebKit/Shared/API/c/WKErrorRef.cpp
>@@ -58,6 +58,8 @@ int WKErrorGetErrorCode(WKErrorRef errorRef)
>         return kWKErrorCodeCannotUseRestrictedPort;
>     case API::Error::Policy::FrameLoadBlockedByContentBlocker:
>         return kWKErrorCodeFrameLoadBlockedByContentBlocker;
>+    case API::Error::Policy::FrameLoadBlockedByRestrictions:
>+        return kWKErrorCodeFrameLoadBlockedByRestrictions;
>     case API::Error::Policy::FrameLoadBlockedByContentFilter:
>         return kWKErrorCodeFrameLoadBlockedByContentFilter;
>     case API::Error::Plugin::CannotFindPlugIn:
>diff --git a/Source/WebKit/Shared/API/c/WKErrorRef.h b/Source/WebKit/Shared/API/c/WKErrorRef.h
>index 0d76384d344a0105a778a5e5d7b78fc46830368d..e990c4429d4721693850a905779cf86c4167bced 100644
>--- a/Source/WebKit/Shared/API/c/WKErrorRef.h
>+++ b/Source/WebKit/Shared/API/c/WKErrorRef.h
>@@ -39,6 +39,7 @@ enum {
>     kWKErrorCodeCannotUseRestrictedPort =                        103,
>     kWKErrorCodeFrameLoadBlockedByContentBlocker =               104,
>     kWKErrorCodeFrameLoadBlockedByContentFilter =                105,
>+    kWKErrorCodeFrameLoadBlockedByRestrictions =                 106,
>     kWKErrorCodeCannotFindPlugIn =                               200,
>     kWKErrorCodeCannotLoadPlugIn =                               201,
>     kWKErrorCodeJavaUnavailable =                                202,
>diff --git a/Source/WebKit/Shared/WebErrors.cpp b/Source/WebKit/Shared/WebErrors.cpp
>index b6dc50ceb55caf65bbe19af6e327d512009a3fa8..6cfa25c66add17ad7b314eeab75efb41ce7c5254 100644
>--- a/Source/WebKit/Shared/WebErrors.cpp
>+++ b/Source/WebKit/Shared/WebErrors.cpp
>@@ -52,6 +52,11 @@ ResourceError cannotShowURLError(const ResourceRequest& request)
>     return ResourceError(API::Error::webKitPolicyErrorDomain(), API::Error::Policy::CannotShowURL, request.url(), WEB_UI_STRING("The URL canât be shown", "WebKitErrorCannotShowURL description"));
> }
> 
>+ResourceError wasBlockedByRestrictionsError(const ResourceRequest& request)
>+{
>+    return ResourceError(API::Error::webKitPolicyErrorDomain(), API::Error::Policy::FrameLoadBlockedByRestrictions, request.url(), WEB_UI_STRING("The URL was blocked by device restrictions", "WebKitErrorFrameLoadBlockedByRestrictions description"));
>+}
>+
> ResourceError interruptedForPolicyChangeError(const ResourceRequest& request)
> {
>     return ResourceError(API::Error::webKitPolicyErrorDomain(), API::Error::Policy::FrameLoadInterruptedByPolicyChange, request.url(), WEB_UI_STRING("Frame load interrupted", "WebKitErrorFrameLoadInterruptedByPolicyChange description"));
>diff --git a/Source/WebKit/Shared/WebErrors.h b/Source/WebKit/Shared/WebErrors.h
>index 7d600c6d23b55dcc39630990407ce744446cb486..9f0a002b6cb1a6152a1d8837aea9b4c2f8a2ab0e 100644
>--- a/Source/WebKit/Shared/WebErrors.h
>+++ b/Source/WebKit/Shared/WebErrors.h
>@@ -39,6 +39,7 @@ WebCore::ResourceError cancelledError(const WebCore::ResourceRequest&);
> WebCore::ResourceError blockedError(const WebCore::ResourceRequest&);
> WebCore::ResourceError blockedByContentBlockerError(const WebCore::ResourceRequest&);
> WebCore::ResourceError cannotShowURLError(const WebCore::ResourceRequest&);
>+WebCore::ResourceError wasBlockedByRestrictionsError(const WebCore::ResourceRequest&);
> WebCore::ResourceError interruptedForPolicyChangeError(const WebCore::ResourceRequest&);
> WebCore::ResourceError failedCustomProtocolSyncLoad(const WebCore::ResourceRequest&);
> #if ENABLE(CONTENT_FILTERING)
>diff --git a/Source/WebKit/UIProcess/API/APIWebsiteDataStore.cpp b/Source/WebKit/UIProcess/API/APIWebsiteDataStore.cpp
>index f74b2c5db97f12d82506206e7896ecbb2960df5f..949974024800fb237f53caf8df8dc1b2a698c744 100644
>--- a/Source/WebKit/UIProcess/API/APIWebsiteDataStore.cpp
>+++ b/Source/WebKit/UIProcess/API/APIWebsiteDataStore.cpp
>@@ -145,6 +145,8 @@ Ref<WebKit::WebsiteDataStoreConfiguration> WebsiteDataStore::defaultDataStoreCon
> {
>     auto configuration = WebKit::WebsiteDataStoreConfiguration::create();
> 
>+    configuration->setPersistent(true);
>+
>     configuration->setApplicationCacheDirectory(defaultApplicationCacheDirectory());
>     configuration->setApplicationCacheFlatFileSubdirectoryName("Files");
>     configuration->setCacheStorageDirectory(defaultCacheStorageDirectory());
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/WKErrorPrivate.h b/Source/WebKit/UIProcess/API/Cocoa/WKErrorPrivate.h
>index f9c12d23ce67da151bf69bce2e4632cf634223ce..b5d4c3dc15b35a5062508d80460333a25f099e37 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/WKErrorPrivate.h
>+++ b/Source/WebKit/UIProcess/API/Cocoa/WKErrorPrivate.h
>@@ -29,6 +29,7 @@ WK_EXTERN NSString * const _WKLegacyErrorDomain WK_API_AVAILABLE(macos(10.11), i
> 
> typedef NS_ENUM(NSInteger, _WKLegacyErrorCode) {
>     _WKErrorCodeFrameLoadInterruptedByPolicyChange WK_API_AVAILABLE(macos(10.11), ios(9.0)) = 102,
>+    _WKErrorCodeFrameLoadBlockedByRestrictions WK_API_AVAILABLE(macos(WK_MAC_TBA), ios(WK_IOS_TBA)) = 106,
>     _WKLegacyErrorPlugInWillHandleLoad = 204,
> } WK_API_AVAILABLE(macos(10.11), ios(8.3));
> 
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/WKProcessPool.mm b/Source/WebKit/UIProcess/API/Cocoa/WKProcessPool.mm
>index 1688a0aca8196044e66f2e1475136da685a074b6..b0ac76bef1229d0b3f07fe86f971ab31c60461b9 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/WKProcessPool.mm
>+++ b/Source/WebKit/UIProcess/API/Cocoa/WKProcessPool.mm
>@@ -584,7 +584,7 @@ - (void)_synthesizeAppIsBackground:(BOOL)background
>     _processPool->synthesizeAppIsBackground(background);
> }
> 
>-- (void)_setAllowsAnySSLCertificateForServiceWorker:(BOOL) allows
>+- (void)_setAllowsAnySSLCertificateForServiceWorker:(BOOL)allows
> {
> #if ENABLE(SERVICE_WORKER)
>     _processPool->setAllowsAnySSLCertificateForServiceWorker(allows);
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/WKWebsiteDataStore.mm b/Source/WebKit/UIProcess/API/Cocoa/WKWebsiteDataStore.mm
>index 26298ebcec5774e340661ea9fb1a4b28ea50a343..3db26c1d988828d6212befbba485090d70147861 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/WKWebsiteDataStore.mm
>+++ b/Source/WebKit/UIProcess/API/Cocoa/WKWebsiteDataStore.mm
>@@ -229,22 +229,35 @@ - (instancetype)_initWithConfiguration:(_WKWebsiteDataStoreConfiguration *)confi
>     if (!(self = [super init]))
>         return nil;
> 
>-    auto config = API::WebsiteDataStore::defaultDataStoreConfiguration();
>-
>-    if (configuration._webStorageDirectory)
>-        config->setLocalStorageDirectory(configuration._webStorageDirectory.path);
>-    if (configuration._webSQLDatabaseDirectory)
>-        config->setWebSQLDatabaseDirectory(configuration._webSQLDatabaseDirectory.path);
>-    if (configuration._indexedDBDatabaseDirectory)
>-        config->setIndexedDBDatabaseDirectory(configuration._indexedDBDatabaseDirectory.path);
>-    if (configuration._cookieStorageFile)
>-        config->setCookieStorageFile(configuration._cookieStorageFile.path);
>-    if (configuration._resourceLoadStatisticsDirectory)
>-        config->setResourceLoadStatisticsDirectory(configuration._resourceLoadStatisticsDirectory.path);
>-    if (configuration._cacheStorageDirectory)
>-        config->setCacheStorageDirectory(configuration._cacheStorageDirectory.path);
>-    if (configuration._serviceWorkerRegistrationDirectory)
>-        config->setServiceWorkerRegistrationDirectory(configuration._serviceWorkerRegistrationDirectory.path);
>+    auto config = configuration.isPersistent ? API::WebsiteDataStore::defaultDataStoreConfiguration() : WebKit::WebsiteDataStoreConfiguration::create();
>+
>+    RELEASE_ASSERT(config->isPersistent() == configuration.isPersistent);
>+
>+    if (configuration.isPersistent) {
>+        if (configuration._webStorageDirectory)
>+            config->setLocalStorageDirectory(configuration._webStorageDirectory.path);
>+        if (configuration._webSQLDatabaseDirectory)
>+            config->setWebSQLDatabaseDirectory(configuration._webSQLDatabaseDirectory.path);
>+        if (configuration._indexedDBDatabaseDirectory)
>+            config->setIndexedDBDatabaseDirectory(configuration._indexedDBDatabaseDirectory.path);
>+        if (configuration._cookieStorageFile)
>+            config->setCookieStorageFile(configuration._cookieStorageFile.path);
>+        if (configuration._resourceLoadStatisticsDirectory)
>+            config->setResourceLoadStatisticsDirectory(configuration._resourceLoadStatisticsDirectory.path);
>+        if (configuration._cacheStorageDirectory)
>+            config->setCacheStorageDirectory(configuration._cacheStorageDirectory.path);
>+        if (configuration._serviceWorkerRegistrationDirectory)
>+            config->setServiceWorkerRegistrationDirectory(configuration._serviceWorkerRegistrationDirectory.path);
>+    } else {
>+        RELEASE_ASSERT(!configuration._webStorageDirectory);
>+        RELEASE_ASSERT(!configuration._webSQLDatabaseDirectory);
>+        RELEASE_ASSERT(!configuration._indexedDBDatabaseDirectory);
>+        RELEASE_ASSERT(!configuration._cookieStorageFile);
>+        RELEASE_ASSERT(!configuration._resourceLoadStatisticsDirectory);
>+        RELEASE_ASSERT(!configuration._cacheStorageDirectory);
>+        RELEASE_ASSERT(!configuration._serviceWorkerRegistrationDirectory);
>+    }
>+
>     if (configuration.sourceApplicationBundleIdentifier)
>         config->setSourceApplicationBundleIdentifier(configuration.sourceApplicationBundleIdentifier);
>     if (configuration.sourceApplicationSecondaryIdentifier)
>@@ -253,8 +266,12 @@ - (instancetype)_initWithConfiguration:(_WKWebsiteDataStoreConfiguration *)confi
>         config->setHTTPProxy(configuration.httpProxy);
>     if (configuration.httpsProxy)
>         config->setHTTPSProxy(configuration.httpsProxy);
>+    config->setDeviceManagementRestrictionsEnabled(configuration.deviceManagementRestrictionsEnabled);
>+    config->setAllLoadsBlockedByDeviceManagementRestrictionsForTesting(configuration.allLoadsBlockedByDeviceManagementRestrictionsForTesting);
>+
>+    auto sessionID = configuration.isPersistent ? PAL::SessionID::generatePersistentSessionID() : PAL::SessionID::generateEphemeralSessionID();
> 
>-    API::Object::constructInWrapper<API::WebsiteDataStore>(self, WTFMove(config), PAL::SessionID::generatePersistentSessionID());
>+    API::Object::constructInWrapper<API::WebsiteDataStore>(self, WTFMove(config), sessionID);
> 
>     return self;
> }
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/_WKWebsiteDataStoreConfiguration.h b/Source/WebKit/UIProcess/API/Cocoa/_WKWebsiteDataStoreConfiguration.h
>index 59f984e487adf3f042d96737a9b47da79e22d3b0..06a70ee64c2d8782eaf33a2795b1f85c7379408b 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/_WKWebsiteDataStoreConfiguration.h
>+++ b/Source/WebKit/UIProcess/API/Cocoa/_WKWebsiteDataStoreConfiguration.h
>@@ -32,6 +32,20 @@ NS_ASSUME_NONNULL_BEGIN
> WK_CLASS_AVAILABLE(macos(10.13), ios(11.0))
> @interface _WKWebsiteDataStoreConfiguration : NSObject
> 
>+- (instancetype)init; // Creates a persistent configuration.
>+- (instancetype)initNonPersistentConfiguration WK_API_AVAILABLE(macos(WK_MAC_TBA), ios(WK_IOS_TBA));
>+
>+@property (nonatomic, readonly, getter=isPersistent) BOOL persistent WK_API_AVAILABLE(macos(WK_MAC_TBA), ios(WK_IOS_TBA));
>+
>+// These properties apply to both persistent and non-persistent data stores.
>+@property (nonatomic, nullable, copy) NSString *sourceApplicationBundleIdentifier WK_API_AVAILABLE(macos(10.14.4), ios(12.2));
>+@property (nonatomic, nullable, copy) NSString *sourceApplicationSecondaryIdentifier WK_API_AVAILABLE(macos(10.14.4), ios(12.2));
>+@property (nonatomic, nullable, copy, setter=setHTTPProxy:) NSURL *httpProxy WK_API_AVAILABLE(macos(10.14.4), ios(12.2));
>+@property (nonatomic, nullable, copy, setter=setHTTPSProxy:) NSURL *httpsProxy WK_API_AVAILABLE(macos(10.14.4), ios(12.2));
>+@property (nonatomic) BOOL deviceManagementRestrictionsEnabled WK_API_AVAILABLE(macos(WK_MAC_TBA), ios(WK_IOS_TBA));
>+
>+// These properties only make sense for persistent data stores, and will throw
>+// an exception if set for non-persistent stores.
> @property (nonatomic, copy, setter=_setWebStorageDirectory:) NSURL *_webStorageDirectory;
> @property (nonatomic, copy, setter=_setIndexedDBDatabaseDirectory:) NSURL *_indexedDBDatabaseDirectory;
> @property (nonatomic, copy, setter=_setWebSQLDatabaseDirectory:) NSURL *_webSQLDatabaseDirectory;
>@@ -39,10 +53,9 @@ WK_CLASS_AVAILABLE(macos(10.13), ios(11.0))
> @property (nonatomic, copy, setter=_setResourceLoadStatisticsDirectory:) NSURL *_resourceLoadStatisticsDirectory WK_API_AVAILABLE(macos(10.13.4), ios(11.3));
> @property (nonatomic, copy, setter=_setCacheStorageDirectory:) NSURL *_cacheStorageDirectory WK_API_AVAILABLE(macos(10.13.4), ios(11.3));
> @property (nonatomic, copy, setter=_setServiceWorkerRegistrationDirectory:) NSURL *_serviceWorkerRegistrationDirectory WK_API_AVAILABLE(macos(10.13.4), ios(11.3));
>-@property (nonatomic, nullable, copy) NSString *sourceApplicationBundleIdentifier WK_API_AVAILABLE(macos(10.14.4), ios(12.2));
>-@property (nonatomic, nullable, copy) NSString *sourceApplicationSecondaryIdentifier WK_API_AVAILABLE(macos(10.14.4), ios(12.2));
>-@property (nonatomic, nullable, copy, setter=setHTTPProxy:) NSURL *httpProxy WK_API_AVAILABLE(macos(10.14.4), ios(12.2));
>-@property (nonatomic, nullable, copy, setter=setHTTPSProxy:) NSURL *httpsProxy WK_API_AVAILABLE(macos(10.14.4), ios(12.2));
>+
>+// Testing only.
>+@property (nonatomic) BOOL allLoadsBlockedByDeviceManagementRestrictionsForTesting WK_API_AVAILABLE(macos(WK_MAC_TBA), ios(WK_IOS_TBA));
> 
> @end
> 
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/_WKWebsiteDataStoreConfiguration.mm b/Source/WebKit/UIProcess/API/Cocoa/_WKWebsiteDataStoreConfiguration.mm
>index 2a0510ec89f5eab81c53f27e2e0d0036f60ba029..267a3f54c264d2fa8b753bef51d6debf7c3a5b06 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/_WKWebsiteDataStoreConfiguration.mm
>+++ b/Source/WebKit/UIProcess/API/Cocoa/_WKWebsiteDataStoreConfiguration.mm
>@@ -36,6 +36,33 @@ static void checkURLArgument(NSURL *url)
> 
> @implementation _WKWebsiteDataStoreConfiguration
> 
>+- (instancetype)init
>+{
>+    self = [super init];
>+    if (!self)
>+        return nil;
>+
>+    _configuration->setPersistent(true);
>+
>+    return self;
>+}
>+
>+- (instancetype)initNonPersistentConfiguration
>+{
>+    self = [super init];
>+    if (!self)
>+        return nil;
>+
>+    _configuration->setPersistent(false);
>+
>+    return self;
>+}
>+
>+- (BOOL)isPersistent
>+{
>+    return _configuration->isPersistent();
>+}
>+
> - (NSURL *)_webStorageDirectory
> {
>     return [NSURL fileURLWithPath:_configuration->webStorageDirectory() isDirectory:YES];
>@@ -43,6 +70,8 @@ - (NSURL *)_webStorageDirectory
> 
> - (void)_setWebStorageDirectory:(NSURL *)url
> {
>+    if (!_configuration->isPersistent())
>+        [NSException raise:NSInvalidArgumentException format:@"Cannot set _webStorageDirectory on a non-persistent _WKWebsiteDataStoreConfiguration."];
>     checkURLArgument(url);
>     _configuration->setWebStorageDirectory(url.path);
> }
>@@ -54,6 +83,8 @@ - (NSURL *)_indexedDBDatabaseDirectory
> 
> - (void)_setIndexedDBDatabaseDirectory:(NSURL *)url
> {
>+    if (!_configuration->isPersistent())
>+        [NSException raise:NSInvalidArgumentException format:@"Cannot set _indexedDBDatabaseDirectory on a non-persistent _WKWebsiteDataStoreConfiguration."];
>     checkURLArgument(url);
>     _configuration->setIndexedDBDatabaseDirectory(url.path);
> }
>@@ -65,6 +96,8 @@ - (NSURL *)_webSQLDatabaseDirectory
> 
> - (void)_setWebSQLDatabaseDirectory:(NSURL *)url
> {
>+    if (!_configuration->isPersistent())
>+        [NSException raise:NSInvalidArgumentException format:@"Cannot set _webSQLDatabaseDirectory on a non-persistent _WKWebsiteDataStoreConfiguration."];
>     checkURLArgument(url);
>     _configuration->setWebSQLDatabaseDirectory(url.path);
> }
>@@ -96,6 +129,8 @@ - (NSURL *)_cookieStorageFile
> 
> - (void)_setCookieStorageFile:(NSURL *)url
> {
>+    if (!_configuration->isPersistent())
>+        [NSException raise:NSInvalidArgumentException format:@"Cannot set _cookieStorageFile on a non-persistent _WKWebsiteDataStoreConfiguration."];
>     checkURLArgument(url);
>     if ([url hasDirectoryPath])
>         [NSException raise:NSInvalidArgumentException format:@"The cookie storage path must point to a file, not a directory."];
>@@ -110,6 +145,8 @@ - (NSURL *)_resourceLoadStatisticsDirectory
> 
> - (void)_setResourceLoadStatisticsDirectory:(NSURL *)url
> {
>+    if (!_configuration->isPersistent())
>+        [NSException raise:NSInvalidArgumentException format:@"Cannot set _resourceLoadStatisticsDirectory on a non-persistent _WKWebsiteDataStoreConfiguration."];
>     checkURLArgument(url);
>     _configuration->setResourceLoadStatisticsDirectory(url.path);
> }
>@@ -121,6 +158,8 @@ - (NSURL *)_cacheStorageDirectory
> 
> - (void)_setCacheStorageDirectory:(NSURL *)url
> {
>+    if (!_configuration->isPersistent())
>+        [NSException raise:NSInvalidArgumentException format:@"Cannot set _cacheStorageDirectory on a non-persistent _WKWebsiteDataStoreConfiguration."];
>     checkURLArgument(url);
>     _configuration->setCacheStorageDirectory(url.path);
> }
>@@ -132,6 +171,8 @@ - (NSURL *)_serviceWorkerRegistrationDirectory
> 
> - (void)_setServiceWorkerRegistrationDirectory:(NSURL *)url
> {
>+    if (!_configuration->isPersistent())
>+        [NSException raise:NSInvalidArgumentException format:@"Cannot set _serviceWorkerRegistrationDirectory on a non-persistent _WKWebsiteDataStoreConfiguration."];
>     checkURLArgument(url);
>     _configuration->setServiceWorkerRegistrationDirectory(url.path);
> }
>@@ -156,6 +197,26 @@ - (void)setSourceApplicationSecondaryIdentifier:(NSString *)identifier
>     _configuration->setSourceApplicationSecondaryIdentifier(identifier);
> }
> 
>+- (BOOL)deviceManagementRestrictionsEnabled
>+{
>+    return _configuration->deviceManagementRestrictionsEnabled();
>+}
>+
>+- (void)setDeviceManagementRestrictionsEnabled:(BOOL)enabled
>+{
>+    _configuration->setDeviceManagementRestrictionsEnabled(enabled);
>+}
>+
>+- (BOOL)allLoadsBlockedByDeviceManagementRestrictionsForTesting
>+{
>+    return _configuration->allLoadsBlockedByDeviceManagementRestrictionsForTesting();
>+}
>+
>+- (void)setAllLoadsBlockedByDeviceManagementRestrictionsForTesting:(BOOL)blocked
>+{
>+    _configuration->setAllLoadsBlockedByDeviceManagementRestrictionsForTesting(blocked);
>+}
>+
> - (API::Object&)_apiObject
> {
>     return *_configuration;
>diff --git a/Source/WebKit/UIProcess/WebsiteData/Cocoa/WebsiteDataStoreCocoa.mm b/Source/WebKit/UIProcess/WebsiteData/Cocoa/WebsiteDataStoreCocoa.mm
>index 05425c0751e238ee19259b3d0254f0691ca347da..2a56a7436e8a00860a5c0bd1120533392319c225 100644
>--- a/Source/WebKit/UIProcess/WebsiteData/Cocoa/WebsiteDataStoreCocoa.mm
>+++ b/Source/WebKit/UIProcess/WebsiteData/Cocoa/WebsiteDataStoreCocoa.mm
>@@ -131,6 +131,8 @@ WebsiteDataStoreParameters WebsiteDataStore::parameters()
>         false,
>         shouldIncludeLocalhostInResourceLoadStatistics,
>         enableResourceLoadStatisticsDebugMode,
>+        m_configuration->deviceManagementRestrictionsEnabled(),
>+        m_configuration->allLoadsBlockedByDeviceManagementRestrictionsForTesting(),
>         WTFMove(resourceLoadStatisticsManualPrevalentResource),
>         WTFMove(localStorageDirectory),
>         WTFMove(localStorageDirectoryExtensionHandle)
>diff --git a/Source/WebKit/UIProcess/WebsiteData/WebsiteDataStoreConfiguration.cpp b/Source/WebKit/UIProcess/WebsiteData/WebsiteDataStoreConfiguration.cpp
>index 99f57e4ae3a4e1437b54b25250f7217a3120a2ee..aeb80cdc6252f8824c10b04cdf8ce174167bae57 100644
>--- a/Source/WebKit/UIProcess/WebsiteData/WebsiteDataStoreConfiguration.cpp
>+++ b/Source/WebKit/UIProcess/WebsiteData/WebsiteDataStoreConfiguration.cpp
>@@ -39,6 +39,8 @@ Ref<WebsiteDataStoreConfiguration> WebsiteDataStoreConfiguration::copy()
> {
>     auto copy = WebsiteDataStoreConfiguration::create();
> 
>+    copy->m_isPersistent = this->m_isPersistent;
>+
>     copy->m_cacheStorageDirectory = this->m_cacheStorageDirectory;
>     copy->m_perOriginStorageQuota = this->m_perOriginStorageQuota;
>     copy->m_networkCacheDirectory = this->m_networkCacheDirectory;
>@@ -59,6 +61,8 @@ Ref<WebsiteDataStoreConfiguration> WebsiteDataStoreConfiguration::copy()
>     copy->m_sourceApplicationSecondaryIdentifier = this->m_sourceApplicationSecondaryIdentifier;
>     copy->m_httpProxy = this->m_httpProxy;
>     copy->m_httpsProxy = this->m_httpsProxy;
>+    copy->m_deviceManagementRestrictionsEnabled = this->m_deviceManagementRestrictionsEnabled;
>+    copy->m_allLoadsBlockedByDeviceManagementRestrictionsForTesting = this->m_allLoadsBlockedByDeviceManagementRestrictionsForTesting;
> 
>     return copy;
> }
>diff --git a/Source/WebKit/UIProcess/WebsiteData/WebsiteDataStoreConfiguration.h b/Source/WebKit/UIProcess/WebsiteData/WebsiteDataStoreConfiguration.h
>index df17adc5e4d32d021558e6494a3e369787f59f70..ea3d8e2f19d0565cf4bc5fab66a4bfaabd5bbbd8 100644
>--- a/Source/WebKit/UIProcess/WebsiteData/WebsiteDataStoreConfiguration.h
>+++ b/Source/WebKit/UIProcess/WebsiteData/WebsiteDataStoreConfiguration.h
>@@ -38,7 +38,10 @@ public:
> 
>     Ref<WebsiteDataStoreConfiguration> copy();
> 
>-    uint64_t perOriginStorageQuota() { return m_perOriginStorageQuota; }
>+    bool isPersistent() const { return m_isPersistent; }
>+    void setPersistent(bool isPersistent) { m_isPersistent = isPersistent; }
>+
>+    uint64_t perOriginStorageQuota() const { return m_perOriginStorageQuota; }
>     void setPerOriginStorageQuota(uint64_t quota) { m_perOriginStorageQuota = quota; }
> 
>     const String& applicationCacheDirectory() const { return m_applicationCacheDirectory; }
>@@ -98,9 +101,17 @@ public:
>     const URL& httpsProxy() const { return m_httpsProxy; }
>     void setHTTPSProxy(URL&& proxy) { m_httpsProxy = WTFMove(proxy); }
> 
>+    bool deviceManagementRestrictionsEnabled() const { return m_deviceManagementRestrictionsEnabled; }
>+    void setDeviceManagementRestrictionsEnabled(bool enabled) { m_deviceManagementRestrictionsEnabled = enabled; }
>+
>+    bool allLoadsBlockedByDeviceManagementRestrictionsForTesting() const { return m_allLoadsBlockedByDeviceManagementRestrictionsForTesting; }
>+    void setAllLoadsBlockedByDeviceManagementRestrictionsForTesting(bool blocked) { m_allLoadsBlockedByDeviceManagementRestrictionsForTesting = blocked; }
>+
> private:
>     WebsiteDataStoreConfiguration();
> 
>+    bool m_isPersistent { false };
>+
>     String m_cacheStorageDirectory;
>     uint64_t m_perOriginStorageQuota { WebCore::StorageQuotaManager::defaultQuota() };
>     String m_networkCacheDirectory;
>@@ -121,6 +132,8 @@ private:
>     String m_sourceApplicationSecondaryIdentifier;
>     URL m_httpProxy;
>     URL m_httpsProxy;
>+    bool m_deviceManagementRestrictionsEnabled { false };
>+    bool m_allLoadsBlockedByDeviceManagementRestrictionsForTesting { false };
> };
> 
> }
>diff --git a/Source/WebKit/WebKit.xcodeproj/project.pbxproj b/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>index ddb3a3000caef7235c2646cd0f4048cbceb560a2..957328c019866d0edc67c464309e03bc1377c5e3 100644
>--- a/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>+++ b/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>@@ -430,6 +430,8 @@
> 		2984F589164BA095004BC0C6 /* LegacyCustomProtocolManagerMessages.h in Headers */ = {isa = PBXBuildFile; fileRef = 2984F587164BA095004BC0C6 /* LegacyCustomProtocolManagerMessages.h */; };
> 		29AD3093164B4C5D0072DEA9 /* LegacyCustomProtocolManagerProxy.h in Headers */ = {isa = PBXBuildFile; fileRef = 29AD3092164B4C5D0072DEA9 /* LegacyCustomProtocolManagerProxy.h */; };
> 		29CD55AA128E294F00133C85 /* WKAccessibilityWebPageObjectBase.h in Headers */ = {isa = PBXBuildFile; fileRef = 29CD55A8128E294F00133C85 /* WKAccessibilityWebPageObjectBase.h */; };
>+		2D0C56FD229F1DEA00BD33E7 /* DeviceManagementSoftLink.h in Headers */ = {isa = PBXBuildFile; fileRef = 2D0C56FB229F1DEA00BD33E7 /* DeviceManagementSoftLink.h */; };
>+		2D0C56FE229F1DEA00BD33E7 /* DeviceManagementSoftLink.mm in Sources */ = {isa = PBXBuildFile; fileRef = 2D0C56FC229F1DEA00BD33E7 /* DeviceManagementSoftLink.mm */; };
> 		2D1087611D2C573E00B85F82 /* LoadParameters.h in Headers */ = {isa = PBXBuildFile; fileRef = 2D10875F1D2C573E00B85F82 /* LoadParameters.h */; };
> 		2D11B7512126A282006F8878 /* UnifiedSource1-mm.mm in Sources */ = {isa = PBXBuildFile; fileRef = 2D7DEC9421269E4C00B9F73C /* UnifiedSource1-mm.mm */; };
> 		2D11B7522126A282006F8878 /* UnifiedSource1.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 2D7DED5B21269E4D00B9F73C /* UnifiedSource1.cpp */; };
>@@ -702,6 +704,7 @@
> 		2DA6731A20C754B1003CB401 /* DynamicViewportSizeUpdate.h in Headers */ = {isa = PBXBuildFile; fileRef = 2DA6731920C754B1003CB401 /* DynamicViewportSizeUpdate.h */; };
> 		2DA944A01884E4F000ED86DB /* WebIOSEventFactory.h in Headers */ = {isa = PBXBuildFile; fileRef = 2DA944991884E4F000ED86DB /* WebIOSEventFactory.h */; };
> 		2DA944A41884E4F000ED86DB /* GestureTypes.h in Headers */ = {isa = PBXBuildFile; fileRef = 2DA9449D1884E4F000ED86DB /* GestureTypes.h */; };
>+		2DAADA8F2298C21000E36B0C /* DeviceManagementSPI.h in Headers */ = {isa = PBXBuildFile; fileRef = 2DAADA8E2298C21000E36B0C /* DeviceManagementSPI.h */; };
> 		2DABA7721A817B1700EF0F1A /* WKPageRenderingProgressEventsInternal.h in Headers */ = {isa = PBXBuildFile; fileRef = 2DABA7711A817B1700EF0F1A /* WKPageRenderingProgressEventsInternal.h */; };
> 		2DABA7741A817EE600EF0F1A /* WKPluginLoadPolicy.h in Headers */ = {isa = PBXBuildFile; fileRef = 2DABA7731A817EE600EF0F1A /* WKPluginLoadPolicy.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		2DABA7761A82B42100EF0F1A /* APIHistoryClient.h in Headers */ = {isa = PBXBuildFile; fileRef = 2DABA7751A82B42100EF0F1A /* APIHistoryClient.h */; };
>@@ -2506,6 +2509,8 @@
> 		29D04E2821F7C73D0076741D /* AccessibilityPrivSPI.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = AccessibilityPrivSPI.h; sourceTree = "<group>"; };
> 		2D0035221BC7414800DA8716 /* PDFPlugin.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = PDFPlugin.h; path = PDF/PDFPlugin.h; sourceTree = "<group>"; };
> 		2D0035231BC7414800DA8716 /* PDFPlugin.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = PDFPlugin.mm; path = PDF/PDFPlugin.mm; sourceTree = "<group>"; };
>+		2D0C56FB229F1DEA00BD33E7 /* DeviceManagementSoftLink.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DeviceManagementSoftLink.h; sourceTree = "<group>"; };
>+		2D0C56FC229F1DEA00BD33E7 /* DeviceManagementSoftLink.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = DeviceManagementSoftLink.mm; sourceTree = "<group>"; };
> 		2D0CF64B21F2A80300787566 /* TextCheckingController.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = TextCheckingController.mm; sourceTree = "<group>"; };
> 		2D0CF64C21F2A80300787566 /* TextCheckingController.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = TextCheckingController.h; sourceTree = "<group>"; };
> 		2D10875E1D2C573E00B85F82 /* LoadParameters.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = LoadParameters.cpp; sourceTree = "<group>"; };
>@@ -2798,6 +2803,7 @@
> 		2DA944AC1884E9BA00ED86DB /* WebProcessProxyIOS.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = WebProcessProxyIOS.mm; path = ios/WebProcessProxyIOS.mm; sourceTree = "<group>"; };
> 		2DA944B61884EA3500ED86DB /* WebPageIOS.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = WebPageIOS.mm; path = ios/WebPageIOS.mm; sourceTree = "<group>"; };
> 		2DA944BC188511E700ED86DB /* NetworkProcessIOS.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = NetworkProcessIOS.mm; sourceTree = "<group>"; };
>+		2DAADA8E2298C21000E36B0C /* DeviceManagementSPI.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DeviceManagementSPI.h; sourceTree = "<group>"; };
> 		2DABA7711A817B1700EF0F1A /* WKPageRenderingProgressEventsInternal.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WKPageRenderingProgressEventsInternal.h; sourceTree = "<group>"; };
> 		2DABA7731A817EE600EF0F1A /* WKPluginLoadPolicy.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WKPluginLoadPolicy.h; sourceTree = "<group>"; };
> 		2DABA7751A82B42100EF0F1A /* APIHistoryClient.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = APIHistoryClient.h; sourceTree = "<group>"; };
>@@ -6105,6 +6111,7 @@
> 				37C21CAD1E994C0C0029D5F9 /* CorePredictionSPI.h */,
> 				A1FB68261F6E51C100C43F9F /* CrashReporterClientSPI.h */,
> 				57DCEDAA214B9B430016B847 /* DeviceIdentitySPI.h */,
>+				2DAADA8E2298C21000E36B0C /* DeviceManagementSPI.h */,
> 				3754D5441B3A29FD003A4C7F /* NSInvocationSPI.h */,
> 				37B47E2C1D64DB76005F4EFF /* objcSPI.h */,
> 				0E97D74C200E8FF300BF6643 /* SafeBrowsingSPI.h */,
>@@ -7136,6 +7143,8 @@
> 		7EC4F0F818E4A922008056AF /* cocoa */ = {
> 			isa = PBXGroup;
> 			children = (
>+				2D0C56FB229F1DEA00BD33E7 /* DeviceManagementSoftLink.h */,
>+				2D0C56FC229F1DEA00BD33E7 /* DeviceManagementSoftLink.mm */,
> 				5315876B2076B713004BF9F3 /* NetworkActivityTrackerCocoa.mm */,
> 				5321594F1DBAE6D70054AA3C /* NetworkDataTaskCocoa.h */,
> 				5CBC9B8B1C65257300A8FDCF /* NetworkDataTaskCocoa.mm */,
>@@ -9223,6 +9232,8 @@
> 				BC032DA610F437D10058C15A /* Decoder.h in Headers */,
> 				57DCEDAB214C60090016B847 /* DeviceIdentitySPI.h in Headers */,
> 				07297F9F1C17BBEA015F0735 /* DeviceIdHashSaltStorage.h in Headers */,
>+				2D0C56FD229F1DEA00BD33E7 /* DeviceManagementSoftLink.h in Headers */,
>+				2DAADA8F2298C21000E36B0C /* DeviceManagementSPI.h in Headers */,
> 				83891B6C1A68C30B0030F386 /* DiagnosticLoggingClient.h in Headers */,
> 				C18173612058424700DFDA65 /* DisplayLink.h in Headers */,
> 				5C1427021C23F84C00D41183 /* Download.h in Headers */,
>@@ -10982,6 +10993,7 @@
> 				2D92A77D212B6A7100F493FD /* Connection.cpp in Sources */,
> 				2D92A77E212B6A7100F493FD /* DataReference.cpp in Sources */,
> 				2D92A77F212B6A7100F493FD /* Decoder.cpp in Sources */,
>+				2D0C56FE229F1DEA00BD33E7 /* DeviceManagementSoftLink.mm in Sources */,
> 				1AB7D6191288B9D900CFD08C /* DownloadProxyMessageReceiver.cpp in Sources */,
> 				1A64229912DD029200CAAE2C /* DrawingAreaMessageReceiver.cpp in Sources */,
> 				1A64230812DD09EB00CAAE2C /* DrawingAreaProxyMessageReceiver.cpp in Sources */,
>diff --git a/Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp b/Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp
>index 278b6018479f36590348c8951855acf43dcb59f8..15256733b5d2b98180fcf53b6fbc7232cb31672c 100644
>--- a/Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp
>+++ b/Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp
>@@ -335,6 +335,8 @@ void WebLoaderStrategy::scheduleLoadFromNetworkProcess(ResourceLoader& resourceL
> 
>     loadParameters.isMainFrameNavigation = resourceLoader.frame() && resourceLoader.frame()->isMainFrame() && resourceLoader.options().mode == FetchOptions::Mode::Navigate;
> 
>+    loadParameters.isMainResourceNavigationForAnyFrame = resourceLoader.frame() && resourceLoader.options().mode == FetchOptions::Mode::Navigate;
>+
>     loadParameters.shouldEnableCrossOriginResourcePolicy = RuntimeEnabledFeatures::sharedFeatures().crossOriginResourcePolicyEnabled() && !loadParameters.isMainFrameNavigation;
> 
>     if (resourceLoader.options().mode == FetchOptions::Mode::Navigate) {
>diff --git a/Tools/ChangeLog b/Tools/ChangeLog
>index a2ccc8f857e8412aa58edd3085f69833e428f2b1..ec8b44aea074377fcebbca469bbc364a266f3a7b 100644
>--- a/Tools/ChangeLog
>+++ b/Tools/ChangeLog
>@@ -1,3 +1,27 @@
>+2019-05-30  Tim Horton  <timothy_horton@apple.com>
>+
>+        Optionally respect device management restrictions when loading from the network
>+        https://bugs.webkit.org/show_bug.cgi?id=198318
>+        <rdar://problem/44263806>
>+
>+        Reviewed by Alex Christensen.
>+
>+        * TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj:
>+        * TestWebKitAPI/Tests/WebKitCocoa/DeviceManagementRestrictions.mm: Added.
>+        (TEST):
>+        * TestWebKitAPI/Tests/WebKitCocoa/WKWebsiteDatastore.mm:
>+        (TestWebKitAPI::TEST):
>+        * TestWebKitAPI/Tests/WebKitCocoa/WebsiteDataStoreCustomPaths.mm:
>+        (TEST):
>+        Clone a test that tests non-persistent data stores and ensure
>+        that it works if the data store is created via a configuration as well.
>+
>+        Add a test that ensures that you can't create a data store configuration
>+        with an invalid set of options.
>+
>+        Add a test that device management restrictions (when mocked) correctly
>+        fail the load with a new, appropriate error.
>+
> 2019-05-29  Ryan Haddad  <ryanhaddad@apple.com>
> 
>         Unreviewed, rolling out r245857.
>diff --git a/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj b/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
>index 57aa7d182e8fcf005390e22b654f306045e9c37f..e6e6726c9e9d8160166850b7fab7c98bf7c16be4 100644
>--- a/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
>+++ b/Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
>@@ -96,6 +96,7 @@
> 		2D1C04A71D76298B000A6816 /* TestNavigationDelegate.mm in Sources */ = {isa = PBXBuildFile; fileRef = 2D1C04A61D76298B000A6816 /* TestNavigationDelegate.mm */; };
> 		2D21FE591F04642900B58E7D /* WKPDFViewStablePresentationUpdateCallback.mm in Sources */ = {isa = PBXBuildFile; fileRef = 2D21FE581F04642800B58E7D /* WKPDFViewStablePresentationUpdateCallback.mm */; };
> 		2D2BEB2D22324E5F005544CA /* RequestTextInputContext.mm in Sources */ = {isa = PBXBuildFile; fileRef = 2D2BEB2C22324E5F005544CA /* RequestTextInputContext.mm */; };
>+		2D2D13B3229F408B005068AF /* DeviceManagementRestrictions.mm in Sources */ = {isa = PBXBuildFile; fileRef = 2D2D13B2229F408B005068AF /* DeviceManagementRestrictions.mm */; };
> 		2D3CA3A8221DF4B40088E803 /* PageOverlayPlugin.mm in Sources */ = {isa = PBXBuildFile; fileRef = 2D3CA3A4221DF2390088E803 /* PageOverlayPlugin.mm */; };
> 		2D4CF8BD1D8360CC0001CE8D /* WKThumbnailView.mm in Sources */ = {isa = PBXBuildFile; fileRef = 2D4CF8BC1D8360CC0001CE8D /* WKThumbnailView.mm */; };
> 		2D51A0C71C8BF00C00765C45 /* DOMHTMLVideoElementWrapper.mm in Sources */ = {isa = PBXBuildFile; fileRef = 2D51A0C51C8BF00400765C45 /* DOMHTMLVideoElementWrapper.mm */; };
>@@ -1471,6 +1472,7 @@
> 		2D1FE0AF1AD465C1006CD9E6 /* FixedLayoutSize.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = FixedLayoutSize.mm; sourceTree = "<group>"; };
> 		2D21FE581F04642800B58E7D /* WKPDFViewStablePresentationUpdateCallback.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = WKPDFViewStablePresentationUpdateCallback.mm; sourceTree = "<group>"; };
> 		2D2BEB2C22324E5F005544CA /* RequestTextInputContext.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = RequestTextInputContext.mm; sourceTree = "<group>"; };
>+		2D2D13B2229F408B005068AF /* DeviceManagementRestrictions.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = DeviceManagementRestrictions.mm; sourceTree = "<group>"; };
> 		2D3CA3A4221DF2390088E803 /* PageOverlayPlugin.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = PageOverlayPlugin.mm; sourceTree = "<group>"; };
> 		2D4CF8BC1D8360CC0001CE8D /* WKThumbnailView.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = WKThumbnailView.mm; path = WebKit/WKThumbnailView.mm; sourceTree = "<group>"; };
> 		2D51A0C51C8BF00400765C45 /* DOMHTMLVideoElementWrapper.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = DOMHTMLVideoElementWrapper.mm; sourceTree = "<group>"; };
>@@ -2591,6 +2593,7 @@
> 				46A911582108E66B0078D40D /* CustomUserAgent.mm */,
> 				2DC4CF761D2D9DD800ECCC94 /* DataDetection.mm */,
> 				518EE51C20A78D3300E024F3 /* DecidePolicyForNavigationAction.mm */,
>+				2D2D13B2229F408B005068AF /* DeviceManagementRestrictions.mm */,
> 				46918EFB2237283500468DFE /* DeviceOrientation.mm */,
> 				CEA7F57B20895F5B0078EF6E /* DidResignInputElementStrongPasswordAppearance.mm */,
> 				518EE51A20A78CFB00E024F3 /* DoAfterNextPresentationUpdateAfterCrash.mm */,
>@@ -4121,6 +4124,7 @@
> 				9BAD7F3E22690F2000F8DA66 /* DeallocWebViewInEventListener.mm in Sources */,
> 				518EE51D20A78D3600E024F3 /* DecidePolicyForNavigationAction.mm in Sources */,
> 				2D1646E21D1862CD00015A1A /* DeferredViewInWindowStateChange.mm in Sources */,
>+				2D2D13B3229F408B005068AF /* DeviceManagementRestrictions.mm in Sources */,
> 				46918EFC2237283C00468DFE /* DeviceOrientation.mm in Sources */,
> 				7CCE7EB91A411A7E00447C4C /* DeviceScaleFactorInDashboardRegions.mm in Sources */,
> 				7CCE7EBA1A411A7E00447C4C /* DeviceScaleFactorOnBack.mm in Sources */,
>diff --git a/Tools/TestWebKitAPI/Tests/WebKitCocoa/DeviceManagementRestrictions.mm b/Tools/TestWebKitAPI/Tests/WebKitCocoa/DeviceManagementRestrictions.mm
>new file mode 100644
>index 0000000000000000000000000000000000000000..187bb700288d6e0612c8abdedd09b6c856b3d894
>--- /dev/null
>+++ b/Tools/TestWebKitAPI/Tests/WebKitCocoa/DeviceManagementRestrictions.mm
>@@ -0,0 +1,63 @@
>+/*
>+ * Copyright (C) 2019 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.
>+ */
>+
>+#include "config.h"
>+
>+#import "PlatformUtilities.h"
>+#import "Test.h"
>+#import "TestNavigationDelegate.h"
>+#import "TestWKWebView.h"
>+#import <WebKit/WKErrorPrivate.h>
>+#import <WebKit/WKWebsiteDataStorePrivate.h>
>+#import <WebKit/WebKit.h>
>+#import <WebKit/_WKWebsiteDataStoreConfiguration.h>
>+#import <wtf/RetainPtr.h>
>+
>+TEST(WebKit, DeviceManagementRestrictions)
>+{
>+    RetainPtr<_WKWebsiteDataStoreConfiguration> dataStoreConfiguration = adoptNS([[_WKWebsiteDataStoreConfiguration alloc] initNonPersistentConfiguration]);
>+    [dataStoreConfiguration setDeviceManagementRestrictionsEnabled:YES];
>+    [dataStoreConfiguration setAllLoadsBlockedByDeviceManagementRestrictionsForTesting:YES];
>+
>+    RetainPtr<WKWebViewConfiguration> webViewConfiguration = adoptNS([[WKWebViewConfiguration alloc] init]);
>+    [webViewConfiguration setWebsiteDataStore:[[[WKWebsiteDataStore alloc] _initWithConfiguration:dataStoreConfiguration.get()] autorelease]];
>+
>+    RetainPtr<TestWKWebView> webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectZero configuration:webViewConfiguration.get() addToWindow:YES]);
>+
>+    RetainPtr<TestNavigationDelegate> delegate = adoptNS([[TestNavigationDelegate alloc] init]);
>+    [webView setNavigationDelegate:delegate.get()];
>+
>+    __block bool done = false;
>+    [delegate setDidFailProvisionalNavigation:^(WKWebView *webView, WKNavigation *navigation, NSError *error) {
>+        EXPECT_WK_STREQ(_WKLegacyErrorDomain, error.domain);
>+        EXPECT_EQ(_WKErrorCodeFrameLoadBlockedByRestrictions, error.code);
>+        done = true;
>+    }];
>+
>+    NSURLRequest *request = [NSURLRequest requestWithURL:[[NSBundle mainBundle] URLForResource:@"simple" withExtension:@"html" subdirectory:@"TestWebKitAPI.resources"]];
>+    [webView loadRequest:request];
>+
>+    TestWebKitAPI::Util::run(&done);
>+}
>diff --git a/Tools/TestWebKitAPI/Tests/WebKitCocoa/WKWebsiteDatastore.mm b/Tools/TestWebKitAPI/Tests/WebKitCocoa/WKWebsiteDatastore.mm
>index 3f953a707518fe3820673ea10323460cb9294d46..87c41243c68207186abc3c5024cc5ba5c3820c0f 100644
>--- a/Tools/TestWebKitAPI/Tests/WebKitCocoa/WKWebsiteDatastore.mm
>+++ b/Tools/TestWebKitAPI/Tests/WebKitCocoa/WKWebsiteDatastore.mm
>@@ -33,6 +33,7 @@
> #import <WebKit/WKWebsiteDataRecordPrivate.h>
> #import <WebKit/WKWebsiteDataStorePrivate.h>
> #import <WebKit/WebKit.h>
>+#import <WebKit/_WKWebsiteDataStoreConfiguration.h>
> #import <wtf/text/WTFString.h>
> 
> static bool readyToContinue;
>@@ -304,4 +305,49 @@ TEST(WKWebsiteDataStore, RemoveNonPersistentCredentials)
>     TestWebKitAPI::Util::run(&done);
> }
> 
>+TEST(WebKit, SettingNonPersistentDataStorePathsThrowsException)
>+{
>+    auto configuration = adoptNS([[_WKWebsiteDataStoreConfiguration alloc] initNonPersistentConfiguration]);
>+
>+    auto shouldThrowExceptionWhenUsed = [](Function<void(void)>&& modifier) {
>+        @try {
>+            modifier();
>+            EXPECT_TRUE(false);
>+        } @catch (NSException *exception) {
>+            EXPECT_WK_STREQ(NSInvalidArgumentException, exception.name);
>+        }
>+    };
>+
>+    NSURL *fileURL = [NSURL fileURLWithPath:@"/tmp"];
>+
>+    shouldThrowExceptionWhenUsed([&] {
>+        [configuration _setWebStorageDirectory:fileURL];
>+    });
>+    shouldThrowExceptionWhenUsed([&] {
>+        [configuration _setIndexedDBDatabaseDirectory:fileURL];
>+    });
>+    shouldThrowExceptionWhenUsed([&] {
>+        [configuration _setWebSQLDatabaseDirectory:fileURL];
>+    });
>+    shouldThrowExceptionWhenUsed([&] {
>+        [configuration _setCookieStorageFile:fileURL];
>+    });
>+    shouldThrowExceptionWhenUsed([&] {
>+        [configuration _setResourceLoadStatisticsDirectory:fileURL];
>+    });
>+    shouldThrowExceptionWhenUsed([&] {
>+        [configuration _setCacheStorageDirectory:fileURL];
>+    });
>+    shouldThrowExceptionWhenUsed([&] {
>+        [configuration _setServiceWorkerRegistrationDirectory:fileURL];
>+    });
>+
>+    // These properties shouldn't throw exceptions when set on a non-persistent data store.
>+    [configuration setDeviceManagementRestrictionsEnabled:YES];
>+    [configuration setHTTPProxy:[NSURL URLWithString:@"http://www.apple.com/"]];
>+    [configuration setHTTPSProxy:[NSURL URLWithString:@"https://www.apple.com/"]];
>+    [configuration setSourceApplicationBundleIdentifier:@"com.apple.Safari"];
>+    [configuration setSourceApplicationSecondaryIdentifier:@"com.apple.Safari"];
>+}
>+
> }
>diff --git a/Tools/TestWebKitAPI/Tests/WebKitCocoa/WebsiteDataStoreCustomPaths.mm b/Tools/TestWebKitAPI/Tests/WebKitCocoa/WebsiteDataStoreCustomPaths.mm
>index 705fc424abd264c13861601800b2e7b0c1e15fd7..e4ee0206635ccbf707d8947cd5eefcca7db31d4e 100644
>--- a/Tools/TestWebKitAPI/Tests/WebKitCocoa/WebsiteDataStoreCustomPaths.mm
>+++ b/Tools/TestWebKitAPI/Tests/WebKitCocoa/WebsiteDataStoreCustomPaths.mm
>@@ -427,6 +427,52 @@ TEST(WebKit, WebsiteDataStoreEphemeral)
> 
>     EXPECT_TRUE([[NSFileManager defaultManager] fileExistsAtPath:defaultResourceLoadStatisticsPath.path]);
>     EXPECT_FALSE([[NSFileManager defaultManager] fileExistsAtPath:defaultResourceLoadStatisticsFilePath.path]);
>+
>+    [[NSFileManager defaultManager] removeItemAtURL:defaultResourceLoadStatisticsPath error:nil];
>+}
>+
>+TEST(WebKit, WebsiteDataStoreEphemeralViaConfiguration)
>+{
>+    RetainPtr<WebsiteDataStoreCustomPathsMessageHandler> handler = adoptNS([[WebsiteDataStoreCustomPathsMessageHandler alloc] init]);
>+    RetainPtr<WKWebViewConfiguration> configuration = adoptNS([[WKWebViewConfiguration alloc] init]);
>+    [[configuration userContentController] addScriptMessageHandler:handler.get() name:@"testHandler"];
>+
>+    NSURL *defaultResourceLoadStatisticsPath = [NSURL fileURLWithPath:[@"~/Library/WebKit/TestWebKitAPI/WebsiteData/ResourceLoadStatistics/" stringByExpandingTildeInPath] isDirectory:YES];
>+
>+    [[NSFileManager defaultManager] removeItemAtURL:defaultResourceLoadStatisticsPath error:nil];
>+
>+    EXPECT_FALSE([[NSFileManager defaultManager] fileExistsAtPath:defaultResourceLoadStatisticsPath.path]);
>+
>+    RetainPtr<_WKWebsiteDataStoreConfiguration> dataStoreConfiguration = adoptNS([[_WKWebsiteDataStoreConfiguration alloc] initNonPersistentConfiguration]);
>+    configuration.get().websiteDataStore = [[[WKWebsiteDataStore alloc] _initWithConfiguration:dataStoreConfiguration.get()] autorelease];
>+    [configuration.get().websiteDataStore _setResourceLoadStatisticsEnabled:YES];
>+
>+    // We expect the directory to be created by starting up the data store machinery, but not the data file.
>+    EXPECT_TRUE([[NSFileManager defaultManager] fileExistsAtPath:defaultResourceLoadStatisticsPath.path]);
>+
>+    NSURL *defaultResourceLoadStatisticsFilePath = [NSURL fileURLWithPath:[@"~/Library/WebKit/TestWebKitAPI/WebsiteData/ResourceLoadStatistics/full_browsing_session_resourceLog.plist" stringByExpandingTildeInPath] isDirectory:NO];
>+    EXPECT_FALSE([[NSFileManager defaultManager] fileExistsAtPath:defaultResourceLoadStatisticsFilePath.path]);
>+
>+    RetainPtr<WKWebView> webView = adoptNS([[WKWebView alloc] initWithFrame:NSMakeRect(0, 0, 800, 600) configuration:configuration.get()]);
>+
>+    NSURLRequest *request = [NSURLRequest requestWithURL:[[NSBundle mainBundle] URLForResource:@"WebsiteDataStoreCustomPaths" withExtension:@"html" subdirectory:@"TestWebKitAPI.resources"]];
>+    [webView loadRequest:request];
>+
>+    [[[webView configuration] processPool] _syncNetworkProcessCookies];
>+
>+    // Forcibly shut down everything of WebKit that we can.
>+    auto pid = [webView _webProcessIdentifier];
>+    if (pid)
>+        kill(pid, SIGKILL);
>+
>+    webView = nil;
>+    handler = nil;
>+    configuration = nil;
>+
>+    EXPECT_TRUE([[NSFileManager defaultManager] fileExistsAtPath:defaultResourceLoadStatisticsPath.path]);
>+    EXPECT_FALSE([[NSFileManager defaultManager] fileExistsAtPath:defaultResourceLoadStatisticsFilePath.path]);
>+
>+    [[NSFileManager defaultManager] removeItemAtURL:defaultResourceLoadStatisticsPath error:nil];
> }
> 
> TEST(WebKit, DoLoadWithNonDefaultDataStoreAfterTerminatingNetworkProcess)

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Attachments on bug 198318: 370816 | 370880 | 370904 | 370977 | 371010 | 371016 | 371074 | 371075