Forward port better fix and test for LP #491224 from 2.8 branch.

src/OFS/SimpleItem.py

@@ -51,7 +51,6 @@ from DocumentTemplate.ustr import ustr
 from ExtensionClass import Base
 from Persistence import Persistent
 from webdav.Resource import Resource
-from webdav.xmltools import escape as xml_escape
 from zExceptions import Redirect
 from zExceptions import upgradeException
 from zExceptions.ExceptionFormatter import format_exception
@@ -296,7 +295,7 @@ class Item(Base,
                     exc_info=True
                     )
                 try:
-                    strv = str(error_value)
+                    strv = repr(error_value) # quotes tainted strings
                 except:
                     strv = ('<unprintable %s object>' % 
                             str(type(error_value).__name__))
@@ -312,7 +311,6 @@ class Item(Base,
                 # return the rendered exception and let the
                 # ZPublisher Exception Hook deal with it.
                 return error_type, v, tb
-            v = xml_escape(v)
             raise error_type, v, tb
         finally:
             if hasattr(self, '_v_eek'): del self._v_eek

src/OFS/tests/testSimpleItem.py

@@ -3,14 +3,60 @@ import unittest
 
 class TestItem(unittest.TestCase):
 
-    def test_z3interfaces(self):
+    def _getTargetClass(self):
+        from OFS.SimpleItem import Item
+        return Item
+
+    def _makeOne(self, *args, **kw):
+        return self._getTargetClass()(*args, **kw)
+
+    def test_conforms_to_IItem(self):
         from OFS.interfaces import IItem
+        from zope.interface.verify import verifyClass
+
+        verifyClass(IItem, self._getTargetClass())
+
+    def test_conforms_to_IManageable(self):
         from OFS.interfaces import IManageable
-        from OFS.SimpleItem import Item
         from zope.interface.verify import verifyClass
 
-        verifyClass(IItem, Item)
-        verifyClass(IManageable, Item)
+        verifyClass(IManageable, self._getTargetClass())
+
+    def test_raise_StandardErrorMessage_str_errorValue(self):
+        item = self._makeOne()
+        def _raise_during_standard_error_message(*args, **kw):
+            raise ZeroDivisionError('testing')
+        item.standard_error_message = _raise_during_standard_error_message
+        try:
+            item.raise_standardErrorMessage(
+                            error_type=OverflowError,
+                            error_value='simple',
+                            REQUEST={'dummy': ''},
+                            )
+        except:
+            import sys
+            self.assertEqual(sys.exc_info()[0], 'OverflowError')
+            value = sys.exc_info()[1]
+            self.failUnless(value.startswith("'simple'"))
+            self.failUnless('full details: testing' in value)
+
+    def test_raise_StandardErrorMessage_TaintedString_errorValue(self):
+        from ZPublisher.TaintedString import TaintedString
+        item = self._makeOne()
+        def _raise_during_standard_error_message(*args, **kw):
+            raise ZeroDivisionError('testing')
+        item.standard_error_message = _raise_during_standard_error_message
+        try:
+            item.raise_standardErrorMessage(
+                            error_type=OverflowError,
+                            error_value=TaintedString('<simple>'),
+                            REQUEST={'dummy': ''},
+                            )
+        except:
+            import sys
+            self.assertEqual(sys.exc_info()[0], 'OverflowError')
+            value = sys.exc_info()[1]
+            self.failIf('<' in value)
 
 
 class TestItem_w__name__(unittest.TestCase):