Export the raw value of rich text fields

news/48.bugfix

@@ -0,0 +1,3 @@
+Export the raw value of rich text fields, instead of the transformed output.
+This fixes internal links in Classic UI based distributions.
+@mauritsvanrees

src/plone/exportimport/serializers/configure.zcml

@@ -6,4 +6,5 @@
   <adapter factory=".blocks.ExportImportBlocksSerializer" />
   <adapter factory=".fields.CollectionFieldSerializer" />
   <adapter factory=".fields.ChoiceFieldSerializer" />
+  <adapter factory=".fields.ExportImportRichTextSerializer" />
 </configure>

src/plone/exportimport/serializers/fields.py

@@ -1,3 +1,5 @@
+from plone.app.textfield.interfaces import IRichText
+from plone.app.textfield.interfaces import IRichTextValue
 from plone.dexterity.interfaces import IDexterityContent
 from plone.exportimport.interfaces import IExportImportRequestMarker
 from plone.restapi.interfaces import IFieldSerializer
@@ -76,3 +78,16 @@ def __call__(self):
                         self.context,
                     )
         return json_compatible(value)
+
+
+@adapter(IRichText, IDexterityContent, IExportImportRequestMarker)
+class ExportImportRichTextSerializer(DefaultFieldSerializer):
+    def __call__(self):
+        value = self.get_value()
+        if value is None or not IRichTextValue.providedBy(value):
+            return json_compatible(value, self.context)
+        return {
+            "data": json_compatible(value.raw),
+            "content-type": json_compatible(value.mimeType),
+            "encoding": json_compatible(value.encoding),
+        }