Converting raster image to SVG format can be quite memroy consuming which potentially can

cause running out of memory so enforce some restrictions by default which will prevent this.

bt5/erp5_dms/SkinTemplateItem/portal_skins/erp5_dms/Image_checkConversionFormatPermission.xml

+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <global name="PythonScript" module="Products.PythonScripts.PythonScript"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>Script_magic</string> </key>
+            <value> <int>3</int> </value>
+        </item>
+        <item>
+            <key> <string>_bind_names</string> </key>
+            <value>
+              <object>
+                <klass>
+                  <global name="NameAssignments" module="Shared.DC.Scripts.Bindings"/>
+                </klass>
+                <tuple/>
+                <state>
+                  <dictionary>
+                    <item>
+                        <key> <string>_asgns</string> </key>
+                        <value>
+                          <dictionary>
+                            <item>
+                                <key> <string>name_container</string> </key>
+                                <value> <string>container</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_context</string> </key>
+                                <value> <string>context</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_m_self</string> </key>
+                                <value> <string>script</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_subpath</string> </key>
+                                <value> <string>traverse_subpath</string> </value>
+                            </item>
+                          </dictionary>
+                        </value>
+                    </item>
+                  </dictionary>
+                </state>
+              </object>
+            </value>
+        </item>
+        <item>
+            <key> <string>_body</string> </key>
+            <value> <string encoding="cdata"><![CDATA[
+
+if format in (\'svg\',):\n
+  image_pixels = context.getHeight()* context.getWidth()\n
+  max_pixels = 128*128 # default thumbnail size\n
+  if image_pixels > max_pixels:\n
+    # image is too big to be handled safely by ERP5 as it can lead to \n
+    # really high memory consumptions\n
+    return 0\n
+return 1\n
+
+
+]]></string> </value>
+        </item>
+        <item>
+            <key> <string>_params</string> </key>
+            <value> <string>format, **kw</string> </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>Image_checkConversionFormatPermission</string> </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>

bt5/erp5_dms/bt/revision

-1267
+1268
\ No newline at end of file

product/ERP5OOo/tests/testDms.py

@@ -175,6 +175,7 @@ class TestDocumentMixin(ERP5TypeTestCase):
 
   conversion_format_permission_script_id_list = [
       'Document_checkConversionFormatPermission',
+      'Image_checkConversionFormatPermission',
       'PDF_checkConversionFormatPermission']
   def clearRestrictedSecurityHelperScript(self):
     for script_id in self.conversion_format_permission_script_id_list: