[5.4] Convert TUF update info URL into legacy format

[SniperSister]

Pull Request for Issue #45977

Summary of Changes

The legacy update XML format used a XML attribute per infourl, wheras the JSON-based TUF is using two separate keys. That leads to a different data structure, that had to be converted - this PR adds the conversion logic.

Testing Instructions

• Install Joomla_5.4.0-beta2-dev+pr.45696-Development-Full_Package.zip
• Disable Automated Updates and delete Installation folder
• Installed additional plg_system_autoupdatepreventer and enabled it
• 'Log Almost Everything' and 'Debug System' enabled
• Installed 'System - Alpha Update Server' 0.6.1 plugin
• Check with manual update 'Joomla Update to Joomla! 5.4.113 is available (twice needed)
  • Fixed Database structure
• Enable Automated Update

Actual result BEFORE applying this Pull Request

PHP Warning

Expected result AFTER applying this Pull Request

No warning

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

[exlemor]

@SniperSister I am trying to test this PR but your 1st step says:

Download /install: Joomla_5.4.0-beta2-dev+pr.45696-Development-Full_Package.zip, except that PR:
#45696 is Merged so it doesn't seem to allow/have the download page ;(

I found this https://artifacts.joomla.org/drone/joomla/joomla-cms/5.4-dev/45696/downloads/87417/
(which seems to be the most recent (but update version) but I would prefer a confirmation from you)

For others looking for the 2 plugins:
Plugin: plg_system_autoupdatepreventer
Plugin: 'System - Alpha Update Server' 0.6.1 plugin

What PHP warning is expected?
I see some BEFORE and AFTER...

[muhme]

What PHP warning is expected?

[25-Aug-2025 08:50:17 UTC] PHP Warning: Array to string conversion in /var/www/joomla-test.heikol.de/public_html/libraries/src/HTML/HTMLHelper.php on line 327

See the fixed issue and maybe from there the tested PR.

[muhme]

I have tested this item 🔴 unsuccessfully on 4fdaf73

* Veryfied with new test the PHP error is still logged on enabling and disabling Automated Updates

• New installation with Joomla_5.4.0-beta2-dev+pr.45980-Development-Full_Package.zip
  • Tested enabling and disabling Automated Updates
  • ✅ The PHP warning 'Array to string conversion' no longer occurs
  • ❌ Two new PHP warnings are logged for each enabling / disabling Automated Updates:

[26-Aug-2025 04:20:07 UTC] PHP Warning:  Attempt to read property "url" on array in /var/www/joomla-test.heikol.de/public_html/libraries/src/Updater/Update.php on line 623
[26-Aug-2025 04:20:07 UTC] PHP Warning:  Attempt to read property "title" on array in /var/www/joomla-test.heikol.de/public_html/libraries/src/Updater/Update.php on line 6241G1G

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[SniperSister]

Fixed @muhme - sorry, my bad, did not commit the final version

[muhme]

I have tested this item ✅ successfully on 58742e1

* New installation with fresh Joomla_5.4.0-beta2-dev+pr.45980-Development-Full_Package.zip

• Tested enabling and disabling Automated Updates
  • ✅ No PHP warnings
  • ✅ Email still sent 'Your site could not be updated from 5.4.0-beta2-dev+pr.45980 to 5.4.113.'
• Disabled plg_system_autoupdatepreventer and enabled Automated Updates
  • ✅ Automated Update to 5.4.113, including email
  • ✅ No PHP warnings
  • ✅ Checked administrator/logs/* useful update log messages, no new erros (only known email ERRORS, API Exception "Update stopped by plugin.")

Thank you @SniperSister

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[exlemor]

I have tested this item ✅ successfully on 58742e1

I have successfully test this PR. Thanks @muhme, got the same results as you - I feel better knowing that I had the same and thought I was doing something incorrect but wasn't for once ;) lol.

Thanks @SniperSister for the PR and fixes :)

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[ChristineWk]

Unfortunately, I'm too late, as I just noticed.
I've been on part of the instructions earlier...
@SniperSister informed you via email. Thank you.

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[richard67]

RTC

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[muhme]

Thank you @SniperSister for your contribution. Thank you @richard67 for your support. Thank you @exlemor for testing.