Attachment 343794 Details for Bug 187130 – Patch

[patch] Patch

bug-187130-20180627221857.patch (text/plain), 30.61 KB, created by Wenson Hsieh on 2018-06-27 22:18:58 PDT

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Creator: Wenson Hsieh

Created: 2018-06-27 22:18:58 PDT

Size: 30.61 KB

patch

obsolete

>Subversion Revision: 233253
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index bedae4ed85eff1a9009ccce18cdb03d0df476231..d3b91c7eb3abd4b48d1855eea810c60b37a3bce6 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,71 @@
>+2018-06-27  Wenson Hsieh  <wenson_hsieh@apple.com>
>+
>+        [iOS] DataTransfer.getData always returns the empty string when dropping text
>+        https://bugs.webkit.org/show_bug.cgi?id=187130
>+        <rdar://problem/41014117>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Currently, DataTransfer.getData() always returns the empty string on drop. This is because all data on drop is
>+        backed by local files in the temporary directory, so the number of files is never 0; this, combined with the
>+        fact that WebKit will suppress access to the DataTransfer object if there is one or more file in the pasteboard,
>+        means that getData() never works for drag and drop on iOS at the moment. To fix this, we need to know whether a
>+        dropped item provider is a file.
>+
>+        Ideally, we'd have a flag to tell us whether or not an NSItemProvider being dropped is a file, or instead just
>+        inline data - in fact, this flag already exists in the form of NSPreferredPresentationStyle. Unfortunately, not
>+        all apps that vend draggable files specify this, so we can't simply ask the item provider whether it's intended
>+        to be a file. As a workaround, we can use several heuristics to determine the "file content state" of the drag
>+        pasteboard on iOS (see below for more details).
>+
>+        This patch adds some plumbing through the client layers to grab a list of item information describing each
>+        dropped item provider on iOS. Using this information, we tweak the logic in Pasteboard::fileContentState to make
>+        an educated guess at whether or not the pasteboard really contains files; if we determine that the pasteboard
>+        probably contains no files, we'll allow DataTransfer.getData() to retrieve information from the pasteboard.
>+        Otherwise, if the pasteboard may contain files, we'll fall back to our current behavior of including the "Files"
>+        type in DataTransfer.types and allowing the page to grab file data using DataTransfer.files or
>+        DataTransfer.items.
>+
>+        Tests:  DataInteractionTests.DataTransferGetDataReadPlainAndRichText
>+                DataInteractionTests.DataTransferSuppressGetDataDueToPresenceOfTextFile
>+
>+        * dom/DataTransfer.cpp:
>+        (WebCore::DataTransfer::filesFromPasteboardAndItemList const):
>+
>+        Check Pasteboard::fileContentState() to ensure that we don't expose files when DataTransfer.types does not
>+        contain the "Files" type, and vice versa.
>+
>+        * dom/DataTransferItemList.cpp:
>+        (WebCore::DataTransferItemList::ensureItems const):
>+        * platform/PasteboardItemInfo.h:
>+
>+        Add a couple of additional members to PasteboardItemInfo: suggestedFileName and hasDeclaredNonTextType, a flag
>+        that indicates whether or not the pasteboard item has a type representation that is a declared type, but is not
>+        a text type (i.e. does not conform to "public.text", "public.url", or rich text format with attachment types).
>+
>+        (WebCore::PasteboardItemInfo::encode const):
>+        (WebCore::PasteboardItemInfo::decode):
>+        * platform/PasteboardStrategy.h:
>+        * platform/PlatformPasteboard.h:
>+        * platform/cocoa/PasteboardCocoa.mm:
>+        (WebCore::Pasteboard::fileContentState):
>+
>+        Instead of always considering a dropped item provider on iOS to represent a file, only do so if at least one of
>+        the following conditions are met:
>+        - The drop session contains multiple item providers (flocking text selections is a very rare use case).
>+        - The item provider was explicitly marked as an attachment.
>+        - The item provider has a suggested file name.
>+        - The item provider has any other content that is not text.
>+
>+        In the case where none of the above conditions are met, the item provider (if it ends up being a file) is
>+        essentially indistinguishable from inline data. An example of this is dropping a plain text file that is
>+        unnamed, with no presentation style, and alongside no other items nor other known type representations. These
>+        are cases in which whether the item is treated as a file or as inline data is (hopefully) irrelevant.
>+
>+        * platform/ios/PlatformPasteboardIOS.mm:
>+        (WebCore::PlatformPasteboard::allPasteboardItemInfo):
>+        (WebCore::PlatformPasteboard::informationForItemAtIndex):
>+
> 2018-06-21  Emilio Cobos Ãlvarez  <emilio@crisal.io>
> 
>         Move clearChildNeedsStyleRecalc into resetStyleForNonRenderedDescendants.
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index dfd8848916637e45207cf62fcaf518b075a4c06c..84fd5eff8b109e758a3d99fb969d40189ee40d72 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,21 @@
>+2018-06-27  Wenson Hsieh  <wenson_hsieh@apple.com>
>+
>+        [iOS] DataTransfer.getData always returns the empty string when dropping text
>+        https://bugs.webkit.org/show_bug.cgi?id=187130
>+        <rdar://problem/41014117>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add plumbing to grab information for each item in the pasteboard. See WebCore ChangeLog for more detail.
>+
>+        * UIProcess/Cocoa/WebPasteboardProxyCocoa.mm:
>+        (WebKit::WebPasteboardProxy::allPasteboardItemInfo):
>+        * UIProcess/WebPasteboardProxy.h:
>+        * UIProcess/WebPasteboardProxy.messages.in:
>+        * WebProcess/WebCoreSupport/WebPlatformStrategies.cpp:
>+        (WebKit::WebPlatformStrategies::allPasteboardItemInfo):
>+        * WebProcess/WebCoreSupport/WebPlatformStrategies.h:
>+
> 2018-06-27  Tim Horton  <timothy_horton@apple.com>
> 
>         When trying to print a very long email on iOS, the print preview is blank
>diff --git a/Source/WebKitLegacy/mac/ChangeLog b/Source/WebKitLegacy/mac/ChangeLog
>index 61a241964f2eeed98eaf04b921da951c03a6e98f..4d0720457c43679e1bafccc6ded30556faf46d27 100644
>--- a/Source/WebKitLegacy/mac/ChangeLog
>+++ b/Source/WebKitLegacy/mac/ChangeLog
>@@ -1,3 +1,17 @@
>+2018-06-27  Wenson Hsieh  <wenson_hsieh@apple.com>
>+
>+        [iOS] DataTransfer.getData always returns the empty string when dropping text
>+        https://bugs.webkit.org/show_bug.cgi?id=187130
>+        <rdar://problem/41014117>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add plumbing to grab information for each item in the pasteboard. See WebCore ChangeLog for more detail.
>+
>+        * WebCoreSupport/WebPlatformStrategies.h:
>+        * WebCoreSupport/WebPlatformStrategies.mm:
>+        (WebPlatformStrategies::allPasteboardItemInfo):
>+
> 2018-06-26  Eric Carlson  <eric.carlson@apple.com>
> 
>         [Mac] AirPlay picker uses incorrect theme in Dark mode
>diff --git a/Source/WebCore/dom/DataTransfer.cpp b/Source/WebCore/dom/DataTransfer.cpp
>index 2b91748a5b480896656877d56b320ad6131159b2..5141f472fe9b4915e8ba467f375a8322605f787d 100644
>--- a/Source/WebCore/dom/DataTransfer.cpp
>+++ b/Source/WebCore/dom/DataTransfer.cpp
>@@ -327,7 +327,7 @@ Vector<Ref<File>> DataTransfer::filesFromPasteboardAndItemList() const
> {
>     bool addedFilesFromPasteboard = false;
>     Vector<Ref<File>> files;
>-    if (!forDrag() || forFileDrag()) {
>+    if ((!forDrag() || forFileDrag()) && m_pasteboard->fileContentState() != Pasteboard::FileContentState::NoFileOrImageData) {
>         WebCorePasteboardFileReader reader;
>         m_pasteboard->read(reader);
>         files = WTFMove(reader.files);
>diff --git a/Source/WebCore/dom/DataTransferItemList.cpp b/Source/WebCore/dom/DataTransferItemList.cpp
>index cea8bc254c5b220e894f8e637e9416a5c385c119..7f6c8bac343e9dd6659013c953d91b02b7f8696a 100644
>--- a/Source/WebCore/dom/DataTransferItemList.cpp
>+++ b/Source/WebCore/dom/DataTransferItemList.cpp
>@@ -139,8 +139,10 @@ Vector<Ref<DataTransferItem>>& DataTransferItemList::ensureItems() const
>             items.append(DataTransferItem::create(makeWeakPtr(*const_cast<DataTransferItemList*>(this)), lowercasedType));
>     }
> 
>-    for (auto& file : m_dataTransfer.files().files())
>-        items.append(DataTransferItem::create(makeWeakPtr(*const_cast<DataTransferItemList*>(this)), file->type(), file.copyRef()));
>+    if (m_dataTransfer.pasteboard().fileContentState() != Pasteboard::FileContentState::NoFileOrImageData) {
>+        for (auto& file : m_dataTransfer.files().files())
>+            items.append(DataTransferItem::create(makeWeakPtr(*const_cast<DataTransferItemList*>(this)), file->type(), file.copyRef()));
>+    }
> 
>     m_items = WTFMove(items);
> 
>diff --git a/Source/WebCore/platform/PasteboardItemInfo.h b/Source/WebCore/platform/PasteboardItemInfo.h
>index f7c35d237b625eda156c83ee6b691d97d225f10f..90f3f1b348954206bc9453650b042d6fb92c4c45 100644
>--- a/Source/WebCore/platform/PasteboardItemInfo.h
>+++ b/Source/WebCore/platform/PasteboardItemInfo.h
>@@ -39,6 +39,8 @@ enum class PasteboardItemPresentationStyle {
> struct PasteboardItemInfo {
>     String pathForFileUpload;
>     String contentTypeForFileUpload;
>+    String suggestedFileName;
>+    bool hasDeclaredNonTextType { false };
>     PasteboardItemPresentationStyle preferredPresentationStyle { PasteboardItemPresentationStyle::Unspecified };
> 
>     template<class Encoder> void encode(Encoder&) const;
>@@ -48,7 +50,7 @@ struct PasteboardItemInfo {
> template<class Encoder>
> void PasteboardItemInfo::encode(Encoder& encoder) const
> {
>-    encoder << pathForFileUpload << contentTypeForFileUpload;
>+    encoder << pathForFileUpload << contentTypeForFileUpload << suggestedFileName << hasDeclaredNonTextType;
>     encoder.encodeEnum(preferredPresentationStyle);
> }
> 
>@@ -62,6 +64,12 @@ std::optional<PasteboardItemInfo> PasteboardItemInfo::decode(Decoder& decoder)
>     if (!decoder.decode(result.contentTypeForFileUpload))
>         return std::nullopt;
> 
>+    if (!decoder.decode(result.suggestedFileName))
>+        return std::nullopt;
>+
>+    if (!decoder.decode(result.hasDeclaredNonTextType))
>+        return std::nullopt;
>+
>     if (!decoder.decodeEnum(result.preferredPresentationStyle))
>         return std::nullopt;
> 
>diff --git a/Source/WebCore/platform/PasteboardStrategy.h b/Source/WebCore/platform/PasteboardStrategy.h
>index 5837d91c9689ba7ea7fb1cd8f66c6751cca7124e..68317f41382061ce0b3c4175b06c14ca9a075c98 100644
>--- a/Source/WebCore/platform/PasteboardStrategy.h
>+++ b/Source/WebCore/platform/PasteboardStrategy.h
>@@ -51,6 +51,7 @@ public:
>     virtual String readStringFromPasteboard(int index, const String& pasteboardType, const String& pasteboardName) = 0;
>     virtual RefPtr<SharedBuffer> readBufferFromPasteboard(int index, const String& pasteboardType, const String& pasteboardName) = 0;
>     virtual URL readURLFromPasteboard(int index, const String& pasteboardType, const String& pasteboardName, String& title) = 0;
>+    virtual Vector<PasteboardItemInfo> allPasteboardItemInfo(const String& pasteboardName) = 0;
>     virtual PasteboardItemInfo informationForItemAtIndex(int index, const String& pasteboardName) = 0;
>     virtual void updateSupportedTypeIdentifiers(const Vector<String>& identifiers, const String& pasteboardName) = 0;
>     virtual void getTypesByFidelityForItemAtIndex(Vector<String>& types, uint64_t index, const String& pasteboardName) = 0;
>diff --git a/Source/WebCore/platform/PlatformPasteboard.h b/Source/WebCore/platform/PlatformPasteboard.h
>index 24880536f9a2dd4ee01516cac2bd55229ced85b4..3caa5495cff500b9a052724c74594ca4ad869f36 100644
>--- a/Source/WebCore/platform/PlatformPasteboard.h
>+++ b/Source/WebCore/platform/PlatformPasteboard.h
>@@ -60,6 +60,7 @@ public:
>     WEBCORE_EXPORT explicit PlatformPasteboard(const String& pasteboardName);
> #if PLATFORM(IOS) || PLATFORM(WPE)
>     WEBCORE_EXPORT PlatformPasteboard();
>+    WEBCORE_EXPORT Vector<PasteboardItemInfo> allPasteboardItemInfo();
>     WEBCORE_EXPORT PasteboardItemInfo informationForItemAtIndex(int index);
>     WEBCORE_EXPORT void getTypesByFidelityForItemAtIndex(Vector<String>& types, int index);
>     WEBCORE_EXPORT void updateSupportedTypeIdentifiers(const Vector<String>& types);
>diff --git a/Source/WebCore/platform/cocoa/PasteboardCocoa.mm b/Source/WebCore/platform/cocoa/PasteboardCocoa.mm
>index 61e5fea70847d606d03f3ffee4af9d34631fd6b8..83ce8bfdb169a81a3e387c7f16e4e4e6136d9b21 100644
>--- a/Source/WebCore/platform/cocoa/PasteboardCocoa.mm
>+++ b/Source/WebCore/platform/cocoa/PasteboardCocoa.mm
>@@ -137,6 +137,38 @@ bool Pasteboard::shouldTreatCocoaTypeAsFile(const String& cocoaType)
> Pasteboard::FileContentState Pasteboard::fileContentState()
> {
>     bool mayContainFilePaths = platformStrategies()->pasteboardStrategy()->getNumberOfFiles(m_pasteboardName);
>+
>+#if PLATFORM(IOS)
>+    if (mayContainFilePaths) {
>+        // On iOS, files are not written to the pasteboard using file URLs, so we need a heuristic to determine
>+        // whether or not the pasteboard contains items that represent files. An example of when this gets tricky
>+        // is differentiating between cases where the user is dragging a plain text file, versus selected text.
>+        // Some common signs that indicate a file drop as opposed to dropping inline data are:
>+        //
>+        //  1. Multiple items - the system generally does not give opportunities to flock multiple pieces of
>+        //     selected text.
>+        //  2. Preferred attachment presentation style - this means the source has explicitly marked the item
>+        //     as a file-like entity, as opposed to inline data.
>+        //  3. A suggested name - this means that the source has explicitly specified a potential file name for
>+        //     the item when dropped.
>+        //  4. The presence of any other declared non-text data in the same item indicates that the content being
>+        //     dropped can take on another non-text format, which could be a file.
>+        //
>+        // If none of these four conditions are satisfied, it's very likely that the content being dropped is just
>+        // an inline piece of text, with no files in the pasteboard (and therefore, no risk of leaking file paths
>+        // to web content). In cases such as these, we should not suppress DataTransfer access.
>+        auto items = platformStrategies()->pasteboardStrategy()->allPasteboardItemInfo(m_pasteboardName);
>+        mayContainFilePaths = items.size() != 1 || notFound != items.findMatching([] (auto& item) {
>+            // The preferred presentation style is the most direct indication of whether this item represents file-
>+            // like data. If the source has specified a presentation style, use this over other indirect cues.
>+            if (item.preferredPresentationStyle != PasteboardItemPresentationStyle::Unspecified)
>+                return item.preferredPresentationStyle == PasteboardItemPresentationStyle::Attachment;
>+
>+            return !item.suggestedFileName.isEmpty() || item.hasDeclaredNonTextType;
>+        });
>+    }
>+#endif
>+
>     if (!mayContainFilePaths) {
>         Vector<String> cocoaTypes;
>         platformStrategies()->pasteboardStrategy()->getTypes(cocoaTypes, m_pasteboardName);
>diff --git a/Source/WebCore/platform/ios/PlatformPasteboardIOS.mm b/Source/WebCore/platform/ios/PlatformPasteboardIOS.mm
>index 7ee2ad9857b2a5941bfe17e8b31feb905cee2bf2..2ef51b706591abd0c8ba9f0fd0f692f0b4f1bea8 100644
>--- a/Source/WebCore/platform/ios/PlatformPasteboardIOS.mm
>+++ b/Source/WebCore/platform/ios/PlatformPasteboardIOS.mm
>@@ -122,6 +122,14 @@ static PasteboardItemPresentationStyle pasteboardItemPresentationStyle(UIPreferr
>     }
> }
> 
>+Vector<PasteboardItemInfo> PlatformPasteboard::allPasteboardItemInfo()
>+{
>+    Vector<PasteboardItemInfo> itemInfo;
>+    for (NSInteger itemIndex = 0; itemIndex < [m_pasteboard numberOfItems]; ++itemIndex)
>+        itemInfo.append(informationForItemAtIndex(itemIndex));
>+    return itemInfo;
>+}
>+
> PasteboardItemInfo PlatformPasteboard::informationForItemAtIndex(int index)
> {
>     if (index >= [m_pasteboard numberOfItems])
>@@ -136,6 +144,28 @@ PasteboardItemInfo PlatformPasteboard::informationForItemAtIndex(int index)
> 
>     NSItemProvider *itemProvider = [[m_pasteboard itemProviders] objectAtIndex:index];
>     info.preferredPresentationStyle = pasteboardItemPresentationStyle(itemProvider.preferredPresentationStyle);
>+    info.suggestedFileName = itemProvider.suggestedName;
>+    for (NSString *typeIdentifier in itemProvider.registeredTypeIdentifiers) {
>+        CFStringRef cfTypeIdentifier = (CFStringRef)typeIdentifier;
>+        if (!UTTypeIsDeclared(cfTypeIdentifier))
>+            continue;
>+
>+        if (UTTypeConformsTo(cfTypeIdentifier, kUTTypeText))
>+            continue;
>+
>+        if (UTTypeConformsTo(cfTypeIdentifier, kUTTypeURL))
>+            continue;
>+
>+        if (UTTypeConformsTo(cfTypeIdentifier, kUTTypeRTFD))
>+            continue;
>+
>+        if (UTTypeConformsTo(cfTypeIdentifier, kUTTypeFlatRTFD))
>+            continue;
>+
>+        info.hasDeclaredNonTextType = true;
>+        break;
>+    }
>+
>     return info;
> }
> 
>diff --git a/Source/WebKit/UIProcess/Cocoa/WebPasteboardProxyCocoa.mm b/Source/WebKit/UIProcess/Cocoa/WebPasteboardProxyCocoa.mm
>index b20122b6a8dd4bc1e4575d136b6170a00ea3393d..ee917e3b604bad8c19b83c0b10e4bbe4f5758a24 100644
>--- a/Source/WebKit/UIProcess/Cocoa/WebPasteboardProxyCocoa.mm
>+++ b/Source/WebKit/UIProcess/Cocoa/WebPasteboardProxyCocoa.mm
>@@ -226,6 +226,11 @@ void WebPasteboardProxy::getPasteboardItemsCount(const String& pasteboardName, u
>     itemsCount = PlatformPasteboard(pasteboardName).count();
> }
> 
>+void WebPasteboardProxy::allPasteboardItemInfo(const String& pasteboardName, Vector<PasteboardItemInfo>& allInfo)
>+{
>+    allInfo = PlatformPasteboard(pasteboardName).allPasteboardItemInfo();
>+}
>+
> void WebPasteboardProxy::informationForItemAtIndex(int index, const String& pasteboardName, PasteboardItemInfo& info)
> {
>     info = PlatformPasteboard(pasteboardName).informationForItemAtIndex(index);
>diff --git a/Source/WebKit/UIProcess/WebPasteboardProxy.h b/Source/WebKit/UIProcess/WebPasteboardProxy.h
>index e84f8fe4dcf93d6f75547a3565edab26108bc24c..5fb4abce35d7f68e1a2df2b4471cfac7aacd2a84 100644
>--- a/Source/WebKit/UIProcess/WebPasteboardProxy.h
>+++ b/Source/WebKit/UIProcess/WebPasteboardProxy.h
>@@ -78,6 +78,7 @@ private:
>     void readURLFromPasteboard(uint64_t index, const String& pasteboardType, const String& pasteboardName, String& url, String& title);
>     void readBufferFromPasteboard(uint64_t index, const String& pasteboardType, const String& pasteboardName, SharedMemory::Handle&, uint64_t& size);
>     void getPasteboardItemsCount(const String& pasteboardName, uint64_t& itemsCount);
>+    void allPasteboardItemInfo(const String& pasteboardName, Vector<WebCore::PasteboardItemInfo>&);
>     void informationForItemAtIndex(int index, const String& pasteboardName, WebCore::PasteboardItemInfo& filename);
>     void updateSupportedTypeIdentifiers(const Vector<String>& identifiers, const String& pasteboardName);
> #endif
>diff --git a/Source/WebKit/UIProcess/WebPasteboardProxy.messages.in b/Source/WebKit/UIProcess/WebPasteboardProxy.messages.in
>index c7b3b268071880aaf654adbd8dea960c9a98e6b3..3dc08ed9722ed84c06072352f1f375fa05850ed5 100644
>--- a/Source/WebKit/UIProcess/WebPasteboardProxy.messages.in
>+++ b/Source/WebKit/UIProcess/WebPasteboardProxy.messages.in
>@@ -30,6 +30,7 @@ messages -> WebPasteboardProxy {
>     ReadURLFromPasteboard(uint64_t index, String pasteboardType, String pasteboardName) -> (String url, String title)
>     ReadBufferFromPasteboard(uint64_t index, String pasteboardType, String pasteboardName) -> (WebKit::SharedMemory::Handle handle, uint64_t size)
>     GetPasteboardItemsCount(String pasteboardName) -> (uint64_t itemsCount)
>+    AllPasteboardItemInfo(String pasteboardName) -> (Vector<WebCore::PasteboardItemInfo> allInfo)
>     InformationForItemAtIndex(uint64_t index, String pasteboardName) -> (struct WebCore::PasteboardItemInfo info)
>     UpdateSupportedTypeIdentifiers(Vector<String> identifiers, String pasteboardName)
>     GetPasteboardTypesByFidelityForItemAtIndex(uint64_t index, String pasteboardName) -> (Vector<String> types)
>diff --git a/Source/WebKit/WebProcess/WebCoreSupport/WebPlatformStrategies.cpp b/Source/WebKit/WebProcess/WebCoreSupport/WebPlatformStrategies.cpp
>index 97a3270c75b228fbac154852209c5f537ac31a74..159f3da9b1d226c957c48037b1fd9d5b02671dd5 100644
>--- a/Source/WebKit/WebProcess/WebCoreSupport/WebPlatformStrategies.cpp
>+++ b/Source/WebKit/WebProcess/WebCoreSupport/WebPlatformStrategies.cpp
>@@ -322,6 +322,13 @@ int WebPlatformStrategies::getPasteboardItemsCount(const String& pasteboardName)
>     return itemsCount;
> }
> 
>+Vector<PasteboardItemInfo> WebPlatformStrategies::allPasteboardItemInfo(const String& pasteboardName)
>+{
>+    Vector<PasteboardItemInfo> allInfo;
>+    WebProcess::singleton().parentProcessConnection()->sendSync(Messages::WebPasteboardProxy::AllPasteboardItemInfo(pasteboardName), Messages::WebPasteboardProxy::AllPasteboardItemInfo::Reply(allInfo), 0);
>+    return allInfo;
>+}
>+
> PasteboardItemInfo WebPlatformStrategies::informationForItemAtIndex(int index, const String& pasteboardName)
> {
>     PasteboardItemInfo info;
>diff --git a/Source/WebKit/WebProcess/WebCoreSupport/WebPlatformStrategies.h b/Source/WebKit/WebProcess/WebCoreSupport/WebPlatformStrategies.h
>index 659e763730fd54a0be69369e4de20026de9273a7..f8cd305bd27c1b0a5e1f8151332784f724dc943c 100644
>--- a/Source/WebKit/WebProcess/WebCoreSupport/WebPlatformStrategies.h
>+++ b/Source/WebKit/WebProcess/WebCoreSupport/WebPlatformStrategies.h
>@@ -65,6 +65,7 @@ private:
>     String readStringFromPasteboard(int index, const String& pasteboardType, const String& pasteboardName) override;
>     RefPtr<WebCore::SharedBuffer> readBufferFromPasteboard(int index, const String& pasteboardType, const String& pasteboardName) override;
>     WebCore::URL readURLFromPasteboard(int index, const String& pasteboardType, const String& pasteboardName, String& title) override;
>+    Vector<WebCore::PasteboardItemInfo> allPasteboardItemInfo(const String& pasteboardName) override;
>     WebCore::PasteboardItemInfo informationForItemAtIndex(int index, const String& pasteboardName) override;
>     void updateSupportedTypeIdentifiers(const Vector<String>& identifiers, const String& pasteboardName) override;
>     void getTypesByFidelityForItemAtIndex(Vector<String>& types, uint64_t index, const String& pasteboardName) override;
>diff --git a/Source/WebKitLegacy/mac/WebCoreSupport/WebPlatformStrategies.h b/Source/WebKitLegacy/mac/WebCoreSupport/WebPlatformStrategies.h
>index 720fe6530a0388b0baf0a34169d71faa91d4987c..adc2ec476752836005c8abb5f460518f2cb4708f 100644
>--- a/Source/WebKitLegacy/mac/WebCoreSupport/WebPlatformStrategies.h
>+++ b/Source/WebKitLegacy/mac/WebCoreSupport/WebPlatformStrategies.h
>@@ -66,6 +66,7 @@ private:
>     String readStringFromPasteboard(int index, const String& pasteboardType, const String& pasteboardName) override;
>     RefPtr<WebCore::SharedBuffer> readBufferFromPasteboard(int index, const String& pasteboardType, const String& pasteboardName) override;
>     WebCore::URL readURLFromPasteboard(int index, const String& pasteboardType, const String& pasteboardName, String& title) override;
>+    Vector<WebCore::PasteboardItemInfo> allPasteboardItemInfo(const String& pasteboardName) override;
>     WebCore::PasteboardItemInfo informationForItemAtIndex(int index, const String& pasteboardName) override;
>     void updateSupportedTypeIdentifiers(const Vector<String>& identifiers, const String& pasteboardName) override;
>     void getTypesByFidelityForItemAtIndex(Vector<String>& types, uint64_t index, const String& pasteboardName) override;
>diff --git a/Source/WebKitLegacy/mac/WebCoreSupport/WebPlatformStrategies.mm b/Source/WebKitLegacy/mac/WebCoreSupport/WebPlatformStrategies.mm
>index ebfcb6fd3708c01ac7d3d61e827c31cba91bef21..339bbbfba8fa336bf5d9462628cb3e455d6f3118 100644
>--- a/Source/WebKitLegacy/mac/WebCoreSupport/WebPlatformStrategies.mm
>+++ b/Source/WebKitLegacy/mac/WebCoreSupport/WebPlatformStrategies.mm
>@@ -240,6 +240,11 @@ String WebPlatformStrategies::readStringFromPasteboard(int index, const String&
>     return PlatformPasteboard(pasteboardName).readString(index, type);
> }
> 
>+Vector<WebCore::PasteboardItemInfo> WebPlatformStrategies::allPasteboardItemInfo(const String& pasteboardName)
>+{
>+    return PlatformPasteboard(pasteboardName).allPasteboardItemInfo();
>+}
>+
> WebCore::PasteboardItemInfo WebPlatformStrategies::informationForItemAtIndex(int index, const String& pasteboardName)
> {
>     return PlatformPasteboard(pasteboardName).informationForItemAtIndex(index);
>diff --git a/Tools/ChangeLog b/Tools/ChangeLog
>index 2a79596940aae84b1f9b17b1def290ff1874aacd..a0c73704f3699915b53509a82806b3011b1ea371 100644
>--- a/Tools/ChangeLog
>+++ b/Tools/ChangeLog
>@@ -1,3 +1,26 @@
>+2018-06-27  Wenson Hsieh  <wenson_hsieh@apple.com>
>+
>+        [iOS] DataTransfer.getData always returns the empty string when dropping text
>+        https://bugs.webkit.org/show_bug.cgi?id=187130
>+        <rdar://problem/41014117>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add 2 new API tests to verify that:
>+        -   When dropping an item with text, markup, and URL representations, the page is allowed to get "text/html",
>+            "text/plain" and "text/uri-list" data.
>+        -   Adding a suggested name to a plain text item causes WebKit to treat it as a file, and suppress access to
>+            DataTransfer.getData().
>+
>+        Additionally tweaks a couple of existing API tests. Namely, in two API tests
>+        (ExternalSourceOverrideDropFileUpload and ExternalSourceHTMLToUploadArea) only a markup string is dropped, and
>+        we previously expected to handle the drop as a file. To allow this test to continue serving its purpose, tweak
>+        them such that the registered items appear to be file-backed (i.e. by adding a suggested filename in one of the
>+        tests, and specifying UIPreferredPresentationStyleAttachment in the other).
>+
>+        * TestWebKitAPI/Tests/ios/DataInteractionTests.mm:
>+        (TestWebKitAPI::TEST):
>+
> 2018-06-26  Chris Dumez  <cdumez@apple.com>
> 
>         Deal better with the network process crashing on startup
>diff --git a/Tools/TestWebKitAPI/Tests/ios/DataInteractionTests.mm b/Tools/TestWebKitAPI/Tests/ios/DataInteractionTests.mm
>index d060a22e4efb69e09ddd72a9dd346e524af823f4..79d71c59c18d4815b9a4997f5c5ef2f35087df00 100644
>--- a/Tools/TestWebKitAPI/Tests/ios/DataInteractionTests.mm
>+++ b/Tools/TestWebKitAPI/Tests/ios/DataInteractionTests.mm
>@@ -650,6 +650,7 @@ TEST(DataInteractionTests, ExternalSourceHTMLToUploadArea)
>     auto simulatedHTMLItemProvider = adoptNS([[UIItemProvider alloc] init]);
>     NSData *htmlData = [@"<body contenteditable></body>" dataUsingEncoding:NSUTF8StringEncoding];
>     [simulatedHTMLItemProvider registerDataRepresentationForTypeIdentifier:(NSString *)kUTTypeHTML withData:htmlData];
>+    [simulatedHTMLItemProvider setSuggestedName:@"index.html"];
> 
>     auto dataInteractionSimulator = adoptNS([[DataInteractionSimulator alloc] initWithWebView:webView.get()]);
>     [dataInteractionSimulator setShouldAllowMoveOperation:NO];
>@@ -980,6 +981,7 @@ TEST(DataInteractionTests, ExternalSourceOverrideDropFileUpload)
>     auto simulatedHTMLItemProvider = adoptNS([[UIItemProvider alloc] init]);
>     NSData *firstHTMLData = [@"<body contenteditable></body>" dataUsingEncoding:NSUTF8StringEncoding];
>     [simulatedHTMLItemProvider registerDataRepresentationForTypeIdentifier:(NSString *)kUTTypeHTML withData:firstHTMLData];
>+    [simulatedHTMLItemProvider setPreferredPresentationStyle:NSPreferredPresentationStyleAttachment];
> 
>     auto dataInteractionSimulator = adoptNS([[DataInteractionSimulator alloc] initWithWebView:webView.get()]);
>     [dataInteractionSimulator setOverridePerformDropBlock:^NSArray<UIDragItem *> *(id <UIDropSession> session)
>@@ -1691,6 +1693,51 @@ TEST(DataInteractionTests, DataTransferSetDataCannotWritePlatformTypes)
>     });
> }
> 
>+TEST(DataInteractionTests, DataTransferGetDataReadPlainAndRichText)
>+{
>+    auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 500)]);
>+    [webView synchronouslyLoadTestPageNamed:@"DataTransfer"];
>+    auto simulator = adoptNS([[DataInteractionSimulator alloc] initWithWebView:webView.get()]);
>+
>+    auto itemProvider = adoptNS([[UIItemProvider alloc] init]);
>+    NSDictionary *textAttributes = @{ NSFontAttributeName: [UIFont boldSystemFontOfSize:20] };
>+    NSAttributedString *richText = [[NSAttributedString alloc] initWithString:@"WebKit" attributes:textAttributes];
>+    [itemProvider registerObject:richText visibility:NSItemProviderRepresentationVisibilityAll];
>+    [itemProvider registerObject:[NSURL URLWithString:@"https://www.webkit.org/"] visibility:NSItemProviderRepresentationVisibilityAll];
>+    [itemProvider registerObject:@"WebKit" visibility:NSItemProviderRepresentationVisibilityAll];
>+
>+    [simulator setExternalItemProviders:@[ itemProvider.get() ]];
>+    [simulator runFrom:CGPointZero to:CGPointMake(50, 100)];
>+
>+    EXPECT_WK_STREQ("text/html, text/plain, text/uri-list", [webView stringByEvaluatingJavaScript:@"types.textContent"]);
>+    EXPECT_WK_STREQ("WebKit", [webView stringByEvaluatingJavaScript:@"textData.textContent"]);
>+    EXPECT_WK_STREQ("https://www.webkit.org/", [webView stringByEvaluatingJavaScript:@"urlData.textContent"]);
>+    EXPECT_WK_STREQ("WebKit", [webView stringByEvaluatingJavaScript:@"htmlData.textContent"]);
>+    EXPECT_WK_STREQ("(STRING, text/html), (STRING, text/plain), (STRING, text/uri-list)", [webView stringByEvaluatingJavaScript:@"items.textContent"]);
>+    EXPECT_WK_STREQ("", [webView stringByEvaluatingJavaScript:@"files.textContent"]);
>+}
>+
>+TEST(DataInteractionTests, DataTransferSuppressGetDataDueToPresenceOfTextFile)
>+{
>+    auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 500)]);
>+    [webView synchronouslyLoadTestPageNamed:@"DataTransfer"];
>+    auto simulator = adoptNS([[DataInteractionSimulator alloc] initWithWebView:webView.get()]);
>+
>+    auto itemProvider = adoptNS([[UIItemProvider alloc] init]);
>+    [itemProvider registerObject:@"Hello world" visibility:NSItemProviderRepresentationVisibilityAll];
>+    [itemProvider setSuggestedName:@"hello.txt"];
>+
>+    [simulator setExternalItemProviders:@[ itemProvider.get() ]];
>+    [simulator runFrom:CGPointZero to:CGPointMake(50, 100)];
>+
>+    EXPECT_WK_STREQ("Files", [webView stringByEvaluatingJavaScript:@"types.textContent"]);
>+    EXPECT_WK_STREQ("", [webView stringByEvaluatingJavaScript:@"textData.textContent"]);
>+    EXPECT_WK_STREQ("", [webView stringByEvaluatingJavaScript:@"urlData.textContent"]);
>+    EXPECT_WK_STREQ("", [webView stringByEvaluatingJavaScript:@"htmlData.textContent"]);
>+    EXPECT_WK_STREQ("(FILE, text/plain)", [webView stringByEvaluatingJavaScript:@"items.textContent"]);
>+    EXPECT_WK_STREQ("('hello.txt', text/plain)", [webView stringByEvaluatingJavaScript:@"files.textContent"]);
>+}
>+
> TEST(DataInteractionTests, DataTransferGetDataCannotReadPrivateArbitraryTypes)
> {
>     auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 500)]);

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Attachments on bug 187130: 343794 | 343796 | 343805 | 343869