Missing dates for some feeds

[jfbauer432]

I found some feeds that don't display any date in the Item List (headlines). I manually downloaded the feed data with wget and there are both updated and published fields for each entry. The "Date" heading is visible and clicking on it to change the sort does not have any affect of the order of the items. I have only seen this on feeds from one site, everything else is ok.

Example feed that does not display date in Item List.
https://forum.freecadweb.org/app.php/feed/forum/3

[jfbauer432]

OS: Ubuntu 22.10
Liferea's Help->About says liferea 1.13.8
however Ubuntu dpkg -l liferea shows the version as 1.13.9-1

[jfbauer432]

Got more info on this. I noticed that sometimes when doing a query of the above URL I got date/times with timezone offset and sometimes without. I eventually figured out I would get the dates with timezone when logged in, and without when logged out. I can also confirm that the times when there is not timezone offset if really UTC. So it might be an easy workaround.

[lwindolf]

Reproduced effect with entries in the feed without login. Entries look like this

	<entry>
	<author><name><![CDATA[drmacro]]></name></author>
	<updated>2022-12-14T22:02:55</updated>

	<published>2022-12-14T22:02:55</published>
	<id>http:https://forum.freecadweb.org:80/viewtopic.php?t=74450&amp;
	[...]
        </entry>

The date is correct ISO8601 so Liferea should parse it. The problem seems the implicit UTC timezone and us calling g_date_time_new_from_iso8601 (date, NULL) with NULL as default timezone. When passing g_time_zone_new_utc() instead the parsing works.

Needs to be fixed.

[lwindolf]

Test added for this. Solution implemented as described above.

Feed has now the proper timestamps. Please retest!