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Tracker textarea field as title may cause invalid HTML and short link when listing (e.g. with TRACKERLIST and showlinks parameter is enabled)

Status
Open
Subject
Tracker textarea field as title may cause invalid HTML and short link when listing (e.g. with TRACKERLIST and showlinks parameter is enabled)
Version
15.x
16.x
17.x
18.x
Category
  • Bug
Feature
Trackers
Wiki Plugin (extends basic syntax)
Resolution status
New
Submitted by
Philippe Cloutier
Lastmod by
Philippe Cloutier
Rating
(0)
Description

Each tracker can have 1 title field. When an item of that tracker is listed, the value of that field can link to tiki-view_tracker_item.php. When listing with the TRACKERLIST plugin, the showlinks parameter controls this behavior.

As can be seen in Tracker_Field_Abstract::renderOutput(), this works by surrounding the return value of renderInnerOutput() with opening and closing HTML a element tags.

While this works for simple field types, this is highly unreliable when rendering a textarea field which is wiki-parsed. If the parse generates a link, the result is invalid HTML.

For example, if tracker 1 contains a single Textarea field, and a single item with value "foo\n!!! title
", calling the plugin with "{trackerlist trackerId="1" showlinks="y"}" will cause the field to show as a link only on the first line ("foo"), at least in Google Chrome, since a header inside a link is invalid. I am not sure why, but if listing the items from tiki-view_tracker.php?trackerId=1 instead, the link only stops between the second and third lines (i.e. the title itself links).

This issue has probably been there from the time TRACKERLIST was written (r3627). If not, it must have been in r33456 (see renderValue() in https://sourceforge.net/p/tikiwiki/code/33456/tree/trunk/lib/trackers/trackerlib.php ).

Solution
I (Chealer) am convinced the only way to fix this is to prevent links on Textarea fields. If we want to link anyway, we should link on other fields, handle clicks around the content (in the margins), or add an explicit link icon when there is no field which allows linking.
Workaround
Do not use a textarea field as title
Importance
3
Easy to solve?
3
Priority
9
Demonstrate Bug
Please demonstrate your bug on show2.tikiwiki.org

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Version: Create show2.tikiwiki.org instance
Ticket ID
6681
Created
Friday 01 June, 2018 21:42:27 GMT-0000
LastModif
Friday 01 June, 2018 22:26:58 GMT-0000

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