mahara-contributors team mailing list archive

[Mitsuhiro Yoshida <1836588@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

When we post English and Japanese comments on a page "Add comment"
field, only Japanese characters are corrupted as the attached screenshot
(mahara_comment.png).

We can fix the issue using mb_convert_encoding function as below.
Hopefully this fix helps Mahara multibyte character users.

---------------------------

Program file to modify:
artefact/comment/lib.php

Line number to modify;
1184

[ Before ]
    /*
     * Removes the classes from the text of the comment that could interfere
     * with the comment display
     * @param string $comment the text content of the comment
     */
    public static function remove_comments_classes($comment) {

        if (empty($comment)) {
            return "";
        }
        $dom = new DOMDocument();
        $dom->preserveWhiteSpace = false;
        $dom->formatOutput = true;
        $dom->loadHTML($comment, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
        $xpath = new DOMXPath($dom);

[ After ]
    /*
     * Removes the classes from the text of the comment that could interfere
     * with the comment display
     * @param string $comment the text content of the comment
     */
    public static function remove_comments_classes($comment) {

        if (empty($comment)) {
            return "";
        }
        $dom = new DOMDocument();
        $dom->preserveWhiteSpace = false;
        $dom->formatOutput = true;
//        $dom->loadHTML($comment, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
        if (function_exists('mb_convert_encoding')) {
            $dom->loadHTML(mb_convert_encoding($comment, 'HTML-ENTITIES', 'UTF-8'));
        } else 
            $dom->loadHTML($comment, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
        }
        $xpath = new DOMXPath($dom);

** Affects: mahara
     Importance: High
         Status: New

** Attachment added: "Page comment broken screenshot"
   https://bugs.launchpad.net/bugs/1836588/+attachment/5277165/+files/mahara_comment.png

** Changed in: mahara
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1836588

Title:
  Multibyte comments broken

Status in Mahara:
  New

Bug description:
  When we post English and Japanese comments on a page "Add comment"
  field, only Japanese characters are corrupted as the attached
  screenshot (mahara_comment.png).

  We can fix the issue using mb_convert_encoding function as below.
  Hopefully this fix helps Mahara multibyte character users.

  ---------------------------

  Program file to modify:
  artefact/comment/lib.php

  Line number to modify;
  1184

  [ Before ]
      /*
       * Removes the classes from the text of the comment that could interfere
       * with the comment display
       * @param string $comment the text content of the comment
       */
      public static function remove_comments_classes($comment) {

          if (empty($comment)) {
              return "";
          }
          $dom = new DOMDocument();
          $dom->preserveWhiteSpace = false;
          $dom->formatOutput = true;
          $dom->loadHTML($comment, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
          $xpath = new DOMXPath($dom);

  [ After ]
      /*
       * Removes the classes from the text of the comment that could interfere
       * with the comment display
       * @param string $comment the text content of the comment
       */
      public static function remove_comments_classes($comment) {

          if (empty($comment)) {
              return "";
          }
          $dom = new DOMDocument();
          $dom->preserveWhiteSpace = false;
          $dom->formatOutput = true;
  //        $dom->loadHTML($comment, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
          if (function_exists('mb_convert_encoding')) {
              $dom->loadHTML(mb_convert_encoding($comment, 'HTML-ENTITIES', 'UTF-8'));
          } else 
              $dom->loadHTML($comment, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
          }
          $xpath = new DOMXPath($dom);

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