HTTP Error 500 in TbSync after Update to Baikal 0.6.0

[AcHub]

Baikal version: 0.6.0

After updating from Baikal 0.5.3 to 0.6.0 I get a HTTP Error 500 when syncing calendars in Thunderbird 60.8 with TbSync (Vers. 1.7.0.2) and the DAV 4 TbSync Plugin (Vers. 0.15.0.2).
I'm not sure if it is an error in Baikal, since I dont get an error message when syncing from my phone. Maybe you can help me sort this out.

The error message is:

URL:
https://URL/html/dav.php/calendars/USER (PROPFIND)

Request:
<d:propfind xmlns:d="DAV:"><d:prop><d:current-user-principal /></d:prop></d:propfind>

Response:
<?xml version="1.0" encoding="utf-8"?>
<d:error xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
  <s:sabredav-version>4.0.1</s:sabredav-version>
  <s:exception>TypeError</s:exception>
  <s:message>explode() expects parameter 2 to be string, null given</s:message>
</d:error>```

[ByteHamster]

Hi, it would be great if you could post a stack trace. The stack trace is written to the server logs.

[ByteHamster]

Looks like it is the same problem as this one: sabre-io/dav#1178

[AcHub]

Is this what you need?

[Mon Aug 26 00:12:22.324752 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: Stack trace:
[Mon Aug 26 00:12:22.324755 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #0 /home/httpd/vhosts/URL/baikal.URL/vendor/sabre/dav/lib/CardDAV/Plugin.php(689): explode(';', NULL)
[Mon Aug 26 00:12:22.324759 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #1 /home/httpd/vhosts/URL/baikal.URL/vendor/sabre/event/lib/WildcardEmitterTrait.php(96): Sabre\\CardDAV\\Plugin->propFindLate(Object(Sabre\\DAV\\PropFind), Object(Sabre\\CalDAV\\CalendarHome))
[Mon Aug 26 00:12:22.324764 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #2 /home/httpd/vhosts/URL/baikal.URL/vendor/sabre/dav/lib/DAV/Server.php(1053): Sabre\\DAV\\Server->emit('propFind', Array)
[Mon Aug 26 00:12:22.324768 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #3 /home/httpd/vhosts/URL/baikal.URL/vendor/sabre/dav/lib/DAV/Server.php(979): Sabre\\DAV\\Server->getPropertiesByNode(Object(Sabre\\DAV\\PropFind), Object(Sabre\\CalDAV\\CalendarHome))
[Mon Aug 26 00:12:22.324772 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #4 /home/httpd/vhosts/URL/baikal.URL/vendor/sabre/dav/lib/DAV/Server.php(1649): Sabre\\DAV\\Server->getPropertiesIteratorForPath('calendars/USER', Array, 0)
[Mon Aug 26 00:12:22.324776 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #5 /home/httpd/vhosts/URL/baikal.URL/vendor/sabre/dav/lib/DAV/CorePlugin.php(363): Sabre\\DAV\\Server->generateMultiStatus(Object(Generator), true)
[Mon Aug 26 00:12:22.324780 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #6 /home/httpd/vhosts/URL/baikal.URL/vendor/sabre/event/lib/WildcardEmitterTrait.php(96): Sabre\\DAV\\CorePlugin->httpPropFind(Object(Sabre\\HTTP\\Request), Object(Sabre\\HTTP\\Response))
[Mon Aug 26 00:12:22.324785 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #7 /home/httpd/vhosts/URL/baikal.URL/vendor/sabre/dav/lib/DAV/Server.php(464): Sabre\\DAV\\Server->emit('method:PROPFIND', Array)
[Mon Aug 26 00:12:22.324789 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #8 /home/httpd/vhosts/URL/baikal.URL/vendor/sabre/dav/lib/DAV/Server.php(241): Sabre\\DAV\\Server->invokeMethod(Object(Sabre\\HTTP\\Request), Object(Sabre\\HTTP\\Response))
[Mon Aug 26 00:12:22.324793 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #9 /home/httpd/vhosts/URL/baikal.URL/vendor/sabre/dav/lib/DAV/Server.php(309): Sabre\\DAV\\Server->start()
[Mon Aug 26 00:12:22.324797 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #10 /home/httpd/vhosts/URL/baikal.URL/Core/Frameworks/Baikal/Core/Server.php(123): Sabre\\DAV\\Server->exec()
[Mon Aug 26 00:12:22.324800 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #11 /home/httpd/vhosts/URL/baikal.URL/html/dav.php(61): Baikal\\Core\\Server->start()
[Mon Aug 26 00:12:22.324810 2019] [fcgid:warn] [pid 11870] [client IP:37046] mod_fcgid: stderr: #12 {main}```

[ByteHamster]

Thanks! It definitely is the same issue. I suggest to follow sabre-io/dav#1178 because the issue is caused by the sabre/dav library.

[metabubble]

Fix has been pushed to master branch in sabre