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  1. XWiki Platform
  2. XWIKI-14555

XWIKI allows pages to contain invalid characters () but bails out on history

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Duplicate
    • Affects Version/s: 5.1, 8.4.5
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None
    • Difficulty:
      Unknown
    • Similar issues:

      Description

      Similiar to issue XWIKI-8995 I've got problems accessing historical versions of a page. The current version displays fine.

      Analysis (e.g. catalina.out) shows errors like

      • ''Exception while reading version [xxx.x] for document id [x,x,x,x,x,x]"
      • "Caused by: com.xpn.xwiki.XWikiException: Error number 2002 in 2: Error parsing xml"
      • "Caused by: org.dom4j.DocumentException: Error on line 255 of document : Character reference "&#1" is an invalid XML character. Nested exception: Character reference "&#1" is an invalid XML character."

      Analysis shows, that for some unknown reason an invalid character (, viewable on edit) has been entered (may be some cut and paste-error) and saved rendering this and all versions after it unable to properly display in history (regardless of difference or page-view).

      Thus I file a bug as saving invalid contend should be disallowed. If the contend were to be allowed it should display properly in history, too.

      I fixed the issue within the database with a statement like
      update xwikircs set xwr_patch=replace(xwr_patch, "", "") where xwr_patch like '%&#1%';

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              • Assignee:
                tmortagne Thomas Mortagne
                Reporter:
                GDA Markus Greger
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