Attachment 361116 Details for Bug 194246 – Patch

[patch] Patch

bug-194246-20190204155642.patch (text/plain), 3.99 KB, created by youenn fablet on 2019-02-04 15:56:42 PST

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Creator: youenn fablet

Created: 2019-02-04 15:56:42 PST

Size: 3.99 KB

patch

obsolete

>Subversion Revision: 240633
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 0dffba8b2e206f04a318af95f8ed4ae264aa972b..46195d82551b020313ea61dbf72d203979fed8e6 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,18 @@
>+2019-02-04  Youenn Fablet  <youenn@apple.com>
>+
>+        UserMediaPermissionRequestManagerProxy lambdas should check for 'this' being valid
>+        https://bugs.webkit.org/show_bug.cgi?id=194246
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        With PSON enabled, the manager proxy can be destroyed.
>+        It is thus important for its callbacks to check for 'this' to be valid.
>+
>+        * UIProcess/UserMediaPermissionRequestManagerProxy.cpp:
>+        (WebKit::UserMediaPermissionRequestManagerProxy::captureDevicesChanged):
>+        (WebKit::UserMediaPermissionRequestManagerProxy::requestUserMediaPermissionForFrame):
>+        (WebKit::UserMediaPermissionRequestManagerProxy::enumerateMediaDevicesForFrame):
>+
> 2019-01-30  Babak Shafiei  <bshafiei@apple.com>
> 
>         Cherry-pick r240633. rdar://problem/47682687
>diff --git a/Source/WebKit/UIProcess/UserMediaPermissionRequestManagerProxy.cpp b/Source/WebKit/UIProcess/UserMediaPermissionRequestManagerProxy.cpp
>index 7f17b2d3d57b8f8e5c56a3666ff2b7bb9ed6e856..1461d756ec995f714fcca4df8b86a874d0ad605f 100644
>--- a/Source/WebKit/UIProcess/UserMediaPermissionRequestManagerProxy.cpp
>+++ b/Source/WebKit/UIProcess/UserMediaPermissionRequestManagerProxy.cpp
>@@ -93,7 +93,9 @@ void UserMediaPermissionRequestManagerProxy::captureDevicesChanged()
>         return;
> 
>     auto requestID = generateRequestID();
>-    auto handler = [this, requestID](bool originHasPersistentAccess) mutable {
>+    auto handler = [this, weakThis = makeWeakPtr(*this), requestID](bool originHasPersistentAccess) mutable {
>+        if (!weakThis)
>+            return;
> 
>         auto pendingRequest = m_pendingDeviceRequests.take(requestID);
>         if (!pendingRequest || !m_page.isValid())
>@@ -383,7 +385,9 @@ void UserMediaPermissionRequestManagerProxy::requestUserMediaPermissionForFrame(
>     };
> 
>     auto requestID = generateRequestID();
>-    auto havePermissionInfoHandler = [this, requestID, validHandler = WTFMove(validHandler), invalidHandler = WTFMove(invalidHandler), localUserRequest = userRequest](bool originHasPersistentAccess) mutable {
>+    auto havePermissionInfoHandler = [this, weakThis = makeWeakPtr(*this), requestID, validHandler = WTFMove(validHandler), invalidHandler = WTFMove(invalidHandler), localUserRequest = userRequest](bool originHasPersistentAccess) mutable {
>+        if (!weakThis)
>+            return;
> 
>         auto pendingRequest = m_pendingDeviceRequests.take(requestID);
>         if (!pendingRequest)
>@@ -455,12 +459,14 @@ void UserMediaPermissionRequestManagerProxy::enumerateMediaDevicesForFrame(uint6
>     static const int defaultMaximumMicrophoneCount = 1;
> 
>     auto requestID = generateRequestID();
>-    auto completionHandler = [this, requestID, userMediaID, requestOrigin = userMediaDocumentOrigin.copyRef(), topOrigin = topLevelDocumentOrigin.copyRef()](bool originHasPersistentAccess) {
>+    auto completionHandler = [this, weakThis = makeWeakPtr(*this), requestID, userMediaID, requestOrigin = userMediaDocumentOrigin.copyRef(), topOrigin = topLevelDocumentOrigin.copyRef()](bool originHasPersistentAccess) {
>+        if (!weakThis)
>+            return;
> 
>         if (!m_page.isValid())
>             return;
> 
>-        m_page.websiteDataStore().deviceIdHashSaltStorage().deviceIdHashSaltForOrigin(requestOrigin.get(), topOrigin.get(), [this, weakThis = makeWeakPtr(*this), requestID, userMediaID, &originHasPersistentAccess] (String&& deviceIDHashSalt) {
>+        m_page.websiteDataStore().deviceIdHashSaltStorage().deviceIdHashSaltForOrigin(requestOrigin.get(), topOrigin.get(), [this, weakThis = WTFMove(weakThis), requestID, userMediaID, &originHasPersistentAccess] (String&& deviceIDHashSalt) {
>             if (!weakThis)
>                 return;
>             auto pendingRequest = m_pendingDeviceRequests.take(requestID);

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Attachments on bug 194246: 361111 | 361116 | 361141