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  1. Moodle
  2. MDL-39023

Circular dependency in parentlanguage definition may easily lead to infinitive loops

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • 2.1.10, 2.2.9, 2.3.6, 2.4.3, 2.5
    • 2.3.7, 2.4.4
    • Language
    • MOODLE_21_STABLE, MOODLE_22_STABLE, MOODLE_23_STABLE, MOODLE_24_STABLE, MOODLE_25_STABLE
    • MOODLE_23_STABLE, MOODLE_24_STABLE
    • MDL-39023-parentlang
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      Testing difficulty: medium (requires direct access to moodledata)

      1. Install some language pack (let's call it 'xx')
      2. Edit $CFG->dataroot/lang/xx/langconfig.php
      3. Change/add the parent language declaration and point it to the language itself:

      $string['parentlanguage'] = 'xx';
      

      4. TEST: Make sure the site (e.g. the front page) is still available (it died in infinitive loop before).

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      Testing difficulty: medium (requires direct access to moodledata) 1. Install some language pack (let's call it 'xx') 2. Edit $CFG->dataroot/lang/xx/langconfig.php 3. Change/add the parent language declaration and point it to the language itself: $string['parentlanguage'] = 'xx'; 4. TEST: Make sure the site (e.g. the front page) is still available (it died in infinitive loop before).

    Description

      This was just observed at lang.moodle.org - the maintainer of he_kids language pack set the parentlanguage of it to the he_kids itself (instead of expected he). This creates circular dependency problem in string_manager::get_language_dependecies() and the site with the lang installed dies in infinitive loop hell.

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              mudrd8mz David Mudrák (@mudrd8mz)
              mudrd8mz David Mudrák (@mudrd8mz)
              Eloy Lafuente (stronk7) Eloy Lafuente (stronk7)
              Eloy Lafuente (stronk7) Eloy Lafuente (stronk7)
              David Woloszyn, Huong Nguyen, Jake Dallimore, Michael Hawkins, Stevani Andolo
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              Dates

                Created:
                Updated:
                Resolved:
                13/May/13