DAVDroid: nach vermutlich nach Android-7-Update werden die Dienste (CalDav, CardDAV) nicht erkannt

[muelv]

Hallo, zusammen.
Wie oben geschrieben: WebDAV-Dienste werden seitens meines Android-Handy nicht mehr erkannt. Von meinem Win7-PC aus kann Outlook auf die Dienste zugreifen und synchronisiert alles klaglos. Auch die Dateisynchronisation funktioniert top. Mein Handy aber kann ich nicht mehr in die Termin- und Kontakt-Synchronisation bringen.

Was habe ich gemacht:

• DAV-Droid auf dem Handy deinstalliert und neu installiert
• neues Konto mit “+” im DavDroid-App angetippt
• Mit URL und Benutzername anmelden
• mein Pfad wird im Kalender angezeigt: https://meine-domain.de/nextcloud/remote.php/dav/
• Benutzername und Kennwort mehrfach (und sicher korrekt) eingegeben.

Meldung von DavDroid:
“Ressourcen-Erkennung:
Es konnte weder ein CalDAV- noch ein CardDAV-Dienst gefunden werden.”

Protokoll:
…
END PROPFIND
2017-04-11 21:331:13 1930
HttpClient$1 <-- HTTP FAILED: javax.net.ssl.SSLHandshakeException: SSL handshake aborted: ssl=0x7780f48400: I/O-Error during sysetm call, Connection reset by peer.

Ich tippe also darauf, dass da irgendwie meine Verschlüsselung/das SSL nicht passt. Ich habe nun aber keine Ahnung, wie ich da weiter komme.

Weiß jemand Rat?
Vielen Dank, Sven

[muelv]

Irgendwie habe ich den Eindruck, es liegt an der http-Version. Kann es sein, dass DAVDroid mit http1.1 dran geht (so sieht es mir in der Fehlermeldung ja aus) und Android bzw. die Nextcloud nur http2 unterstützt?

[muelv]

OK, danke an tescher: wir haben mal getestet:

• 2 verschiedene nextcloud-Installationen
• DAVDroid lauffähig auf beiden
• Plus bei DavDroid geklickt, NextcloudPfad und Benutzername und Kennwort eingegeben

Das Ergebnis:
mit iPhone geht’s
mit Android 4.4.2 geht’s
mit Android 6 geht’s
mit unseren beiden Android 7-Mobiles geht’s nicht !!!

Mein Problem besteht auch erst, seit mir der Android7-Update auf dem Handy aufgespielt wurde

@Nextcloud und bitfire: könnt ihr hier bitte helfen ? Danke !!!

[timm2k]

Hi @muelv

Android 7 hat eine Macke bezüglich der vewendeten elliptischen Kurven für ECDH. Du setzt serverseitig sicherlich auf nginx und hast beispielsweise die Kurve secp384r1 konfiguriert.

Ändere Deine nginx-config auf ssl_ecdh_curve prime256v1; oder ssl_ecdh_curve auto;. Dann klappt es auch mit Android 7.0.
In Android 7.1 ist der Bug behoben.

Noch etwas mehr hintergrund:

Elliptic curve ciphers not available on Android 7

Gruß
Timm

[muelv]

Hi. Thank you !!! Solved ! I’m happy
/etc/nginx/conf.d/my-nextcloud-domain.conf
I had to Change this file and restarted nginx-service.
Here, I commented out this line:
ssl_ecdh_curve secp384r1;
and inserted this line:
ssl_ecdh_curve prime256v1;
afterwards: service nginx restart
Done, it works fine.
Thank you, Kind regards, Sven

[BurtGummer]

Ich habe gerade genau das gleiche Problem, gleiche Fehlermeldung von DavDroid, allerdings Android 7.1, NC 12 und Apache2 - Apache2 kennt diese Einstellungen von nginx nicht, ich habe ganz /etc danach gegrept, gibts nicht bei mir.

Noch jemand eine Idee? Hier die log von DAVdroid:

--- BEGIN DEBUG INFO ---

LOGS:
2017-11-22 11:09:35 433 [ui.setup.DavResourceFinder] Finding initial carddav service configuration
2017-11-22 11:09:35 433 [ui.setup.DavResourceFinder] Checking user-given URL: https://SERVER.de/cloud/
2017-11-22 11:09:35 433 [HttpClient] --> PROPFIND https://SERVER.de/cloud/
2017-11-22 11:09:35 433 [HttpClient] Content-Type: application/xml; charset=utf-8
2017-11-22 11:09:35 433 [HttpClient] Content-Length: 290
2017-11-22 11:09:35 433 [HttpClient] Depth: 0
2017-11-22 11:09:35 433 [HttpClient]
2017-11-22 11:09:35 433 [HttpClient] <?xml version='1.0' encoding='UTF-8' ?><CARD:addressbook-description /><CARD:addressbook-home-set />
2017-11-22 11:09:35 433 [HttpClient] --> END PROPFIND (290-byte body)
2017-11-22 11:09:36 433 [HttpClient] <-- 405 Method Not Allowed https://SERVER.de/cloud/ (235ms)
2017-11-22 11:09:36 433 [HttpClient] Date: Wed, 22 Nov 2017 10:09:37 GMT
2017-11-22 11:09:36 433 [HttpClient] Server: Apache
2017-11-22 11:09:36 433 [HttpClient] Strict-Transport-Security: max-age=15552000
2017-11-22 11:09:36 433 [HttpClient] Set-Cookie: oc4fd360fe32=tvpiprtupddt4unedg13fue5l3; path=/cloud; HttpOnly
2017-11-22 11:09:36 433 [HttpClient] Expires: Thu, 19 Nov 1981 08:52:00 GMT
2017-11-22 11:09:36 433 [HttpClient] Cache-Control: no-store, no-cache, must-revalidate
2017-11-22 11:09:36 433 [HttpClient] Pragma: no-cache
2017-11-22 11:09:36 433 [HttpClient] Set-Cookie: oc_sessionPassphrase=41G0hEyxZVo8wS8am38pXhRnxsg3yTlgPRvrDr2%2BTfAIXmQykn95dydtK7vh9HBVnIW%2FOFLT3K3LQafrN3tXPtyE2fZFFitnhYpN2BNUhwwKkPpbQu%2FbBbnqnUjOsLWg; path=/cloud; secure; HttpOnly
2017-11-22 11:09:36 433 [HttpClient] Content-Security-Policy: default-src ‘self’; script-src ‘self’ ‘unsafe-eval’ ‘nonce-ZUtIZFQ0ZzRwc0dyeFdmNkpXOXpTMUxQaGRvb2xKYUcwMnNZV2REWmc4Yz06RWM3ckpQQnQvL0RqOUNPOUZUMEZQd2VPOG94bDFkbmhvUWQvTEx5VndJbz0=’; style-src ‘self’ ‘unsafe-inline’; frame-src *; img-src * data: blob:; font-src ‘self’ data:; media-src *; connect-src *; object-src ‘none’; base-uri ‘self’;
2017-11-22 11:09:36 433 [HttpClient] X-Frame-Options: SAMEORIGIN
2017-11-22 11:09:36 433 [HttpClient] Set-Cookie: nc_sameSiteCookielax=true; path=/cloud; httponly;secure; expires=Fri, 31-Dec-2100 23:59:59 GMT; SameSite=lax
2017-11-22 11:09:36 433 [HttpClient] Set-Cookie: nc_sameSiteCookiestrict=true; path=/cloud; httponly;secure; expires=Fri, 31-Dec-2100 23:59:59 GMT; SameSite=strict
2017-11-22 11:09:36 433 [HttpClient] Set-Cookie: oc4fd360fe32=3cb7ujiuq57v6pbnu880angic2; path=/cloud; secure; HttpOnly
2017-11-22 11:09:36 433 [HttpClient] Status: 405 Method Not Allowed
2017-11-22 11:09:36 433 [HttpClient] X-Content-Type-Options: nosniff
2017-11-22 11:09:36 433 [HttpClient] X-XSS-Protection: 1; mode=block
2017-11-22 11:09:36 433 [HttpClient] X-Robots-Tag: none
2017-11-22 11:09:36 433 [HttpClient] X-Download-Options: noopen
2017-11-22 11:09:36 433 [HttpClient] X-Permitted-Cross-Domain-Policies: none
2017-11-22 11:09:36 433 [HttpClient] Content-Length: 0
2017-11-22 11:09:36 433 [HttpClient] Keep-Alive: timeout=5, max=100
2017-11-22 11:09:36 433 [HttpClient] Connection: Keep-Alive
2017-11-22 11:09:36 433 [HttpClient] Content-Type: text/html; charset=UTF-8
2017-11-22 11:09:36 433 [HttpClient] <-- END HTTP (0-byte body)
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] PROPFIND/OPTIONS on user-given URL failed
EXCEPTION at.bitfire.dav4android.exception.HttpException: 405 Method Not Allowed
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:331)
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:295)
at at.bitfire.dav4android.DavResource.propfind(DavResource.kt:271)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.checkUserGivenURL(DavResourceFinder.kt:166)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:101)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:73)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:131)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:112)
at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:312)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:69)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:66)
at android.os.AsyncTask$2.call(AsyncTask.java:305)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
at java.lang.Thread.run(Thread.java:761)

2017-11-22 11:09:36 433 [HttpClient] --> PROPFIND https://SERVER.de/.well-known/carddav
2017-11-22 11:09:36 433 [HttpClient] Content-Type: application/xml; charset=utf-8
2017-11-22 11:09:36 433 [HttpClient] Content-Length: 198
2017-11-22 11:09:36 433 [HttpClient] Depth: 0
2017-11-22 11:09:36 433 [HttpClient]
2017-11-22 11:09:36 433 [HttpClient] <?xml version='1.0' encoding='UTF-8' ?>
2017-11-22 11:09:36 433 [HttpClient] --> END PROPFIND (198-byte body)
2017-11-22 11:09:36 433 [HttpClient] <-- 403 Forbidden https://SERVER.de/.well-known/carddav (58ms)
2017-11-22 11:09:36 433 [HttpClient] Date: Wed, 22 Nov 2017 10:09:38 GMT
2017-11-22 11:09:36 433 [HttpClient] Server: Apache
2017-11-22 11:09:36 433 [HttpClient] Strict-Transport-Security: max-age=15552000
2017-11-22 11:09:36 433 [HttpClient] Content-Length: 228
2017-11-22 11:09:36 433 [HttpClient] Keep-Alive: timeout=5, max=99
2017-11-22 11:09:36 433 [HttpClient] Connection: Keep-Alive
2017-11-22 11:09:36 433 [HttpClient] Content-Type: text/html; charset=iso-8859-1
2017-11-22 11:09:36 433 [HttpClient]
2017-11-22 11:09:36 433 [HttpClient]

403 Forbidden

Forbidden

You don't have permission to access /.well-known/carddav on this server.

2017-11-22 11:09:36 433 [HttpClient] <-- END HTTP (228-byte body)
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] Well-known URL detection failed
EXCEPTION at.bitfire.dav4android.exception.HttpException: 403 Forbidden
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:331)
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:295)
at at.bitfire.dav4android.DavResource.propfind(DavResource.kt:271)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.getCurrentUserPrincipal(DavResourceFinder.kt:352)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:105)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:73)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:131)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:112)
at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:312)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:69)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:66)
at android.os.AsyncTask$2.call(AsyncTask.java:305)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
at java.lang.Thread.run(Thread.java:761)

2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] No principal found at user-given URL, trying to discover
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] Looking up SRV records for _carddavs._tcp.SERVER.de
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] Didn’t find carddav service, trying at https://SERVER.de:443
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] Trying to determine principal from initial context path=https://SERVER.de/.well-known/carddav
2017-11-22 11:09:36 433 [HttpClient] --> PROPFIND https://SERVER.de/.well-known/carddav
2017-11-22 11:09:36 433 [HttpClient] Content-Type: application/xml; charset=utf-8
2017-11-22 11:09:36 433 [HttpClient] Content-Length: 198
2017-11-22 11:09:36 433 [HttpClient] Depth: 0
2017-11-22 11:09:36 433 [HttpClient]
2017-11-22 11:09:36 433 [HttpClient] <?xml version='1.0' encoding='UTF-8' ?>
2017-11-22 11:09:36 433 [HttpClient] --> END PROPFIND (198-byte body)
2017-11-22 11:09:36 433 [HttpClient] <-- 403 Forbidden https://SERVER.de/.well-known/carddav (74ms)
2017-11-22 11:09:36 433 [HttpClient] Date: Wed, 22 Nov 2017 10:09:38 GMT
2017-11-22 11:09:36 433 [HttpClient] Server: Apache
2017-11-22 11:09:36 433 [HttpClient] Strict-Transport-Security: max-age=15552000
2017-11-22 11:09:36 433 [HttpClient] Content-Length: 228
2017-11-22 11:09:36 433 [HttpClient] Keep-Alive: timeout=5, max=98
2017-11-22 11:09:36 433 [HttpClient] Connection: Keep-Alive
2017-11-22 11:09:36 433 [HttpClient] Content-Type: text/html; charset=iso-8859-1
2017-11-22 11:09:36 433 [HttpClient]
2017-11-22 11:09:36 433 [HttpClient]

403 Forbidden

Forbidden

You don't have permission to access /.well-known/carddav on this server.

2017-11-22 11:09:36 433 [HttpClient] <-- END HTTP (228-byte body)
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] No resource found
EXCEPTION at.bitfire.dav4android.exception.HttpException: 403 Forbidden
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:331)
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:295)
at at.bitfire.dav4android.DavResource.propfind(DavResource.kt:271)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.getCurrentUserPrincipal(DavResourceFinder.kt:352)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.discoverPrincipalUrl(DavResourceFinder.kt:334)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:123)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:73)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:131)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:112)
at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:312)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:69)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:66)
at android.os.AsyncTask$2.call(AsyncTask.java:305)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
at java.lang.Thread.run(Thread.java:761)

2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] Trying to determine principal from initial context path=https://SERVER.de/
2017-11-22 11:09:36 433 [HttpClient] --> PROPFIND https://SERVER.de/
2017-11-22 11:09:36 433 [HttpClient] Content-Type: application/xml; charset=utf-8
2017-11-22 11:09:36 433 [HttpClient] Content-Length: 198
2017-11-22 11:09:36 433 [HttpClient] Depth: 0
2017-11-22 11:09:36 433 [HttpClient]
2017-11-22 11:09:36 433 [HttpClient] <?xml version='1.0' encoding='UTF-8' ?>
2017-11-22 11:09:36 433 [HttpClient] --> END PROPFIND (198-byte body)
2017-11-22 11:09:36 433 [HttpClient] <-- 403 Forbidden https://SERVER.de/ (73ms)
2017-11-22 11:09:36 433 [HttpClient] Date: Wed, 22 Nov 2017 10:09:38 GMT
2017-11-22 11:09:36 433 [HttpClient] Server: Apache
2017-11-22 11:09:36 433 [HttpClient] Strict-Transport-Security: max-age=15552000
2017-11-22 11:09:36 433 [HttpClient] Content-Length: 209
2017-11-22 11:09:36 433 [HttpClient] Keep-Alive: timeout=5, max=97
2017-11-22 11:09:36 433 [HttpClient] Connection: Keep-Alive
2017-11-22 11:09:36 433 [HttpClient] Content-Type: text/html; charset=iso-8859-1
2017-11-22 11:09:36 433 [HttpClient]
2017-11-22 11:09:36 433 [HttpClient]

403 Forbidden

Forbidden

You don't have permission to access / on this server.

2017-11-22 11:09:36 433 [HttpClient] <-- END HTTP (209-byte body)
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] No resource found
EXCEPTION at.bitfire.dav4android.exception.HttpException: 403 Forbidden
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:331)
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:295)
at at.bitfire.dav4android.DavResource.propfind(DavResource.kt:271)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.getCurrentUserPrincipal(DavResourceFinder.kt:352)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.discoverPrincipalUrl(DavResourceFinder.kt:334)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:123)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:73)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:131)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:112)
at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:312)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:69)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:66)
at android.os.AsyncTask$2.call(AsyncTask.java:305)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
at java.lang.Thread.run(Thread.java:761)

2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] Finding initial caldav service configuration
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] Checking user-given URL: https://SERVER.de/cloud/
2017-11-22 11:09:36 433 [HttpClient] --> PROPFIND https://SERVER.de/cloud/
2017-11-22 11:09:36 433 [HttpClient] Content-Type: application/xml; charset=utf-8
2017-11-22 11:09:36 433 [HttpClient] Content-Length: 435
2017-11-22 11:09:36 433 [HttpClient] Depth: 0
2017-11-22 11:09:36 433 [HttpClient]
2017-11-22 11:09:36 433 [HttpClient] <?xml version='1.0' encoding='UTF-8' ?><n0:calendar-color xmlns:n0=“http://apple.com/ns/ical/” /><CAL:calendar-description /><CAL:calendar-timezone /><CAL:supported-calendar-component-set /><CAL:calendar-home-set />
2017-11-22 11:09:36 433 [HttpClient] --> END PROPFIND (435-byte body)
2017-11-22 11:09:36 433 [HttpClient] <-- 405 Method Not Allowed https://SERVER.de/cloud/ (90ms)
2017-11-22 11:09:36 433 [HttpClient] Date: Wed, 22 Nov 2017 10:09:38 GMT
2017-11-22 11:09:36 433 [HttpClient] Server: Apache
2017-11-22 11:09:36 433 [HttpClient] Strict-Transport-Security: max-age=15552000
2017-11-22 11:09:36 433 [HttpClient] Expires: Thu, 19 Nov 1981 08:52:00 GMT
2017-11-22 11:09:36 433 [HttpClient] Cache-Control: no-store, no-cache, must-revalidate
2017-11-22 11:09:36 433 [HttpClient] Pragma: no-cache
2017-11-22 11:09:36 433 [HttpClient] Content-Security-Policy: default-src ‘self’; script-src ‘self’ ‘unsafe-eval’ ‘nonce-RHNpT2d6YndLUy9wR1hYS0NGaHR6QnZDRG5tTEd6VzNMRTZmYkdCY25kRT06WjZlNDZFNmxjQjZoS0RHTk9Bb2J1RTZEZVMvR1duclFYaUw0R1F3UTNwdz0=’; style-src ‘self’ ‘unsafe-inline’; frame-src *; img-src * data: blob:; font-src ‘self’ data:; media-src *; connect-src *; object-src ‘none’; base-uri ‘self’;
2017-11-22 11:09:36 433 [HttpClient] X-Frame-Options: SAMEORIGIN
2017-11-22 11:09:36 433 [HttpClient] Status: 405 Method Not Allowed
2017-11-22 11:09:36 433 [HttpClient] X-Content-Type-Options: nosniff
2017-11-22 11:09:36 433 [HttpClient] X-XSS-Protection: 1; mode=block
2017-11-22 11:09:36 433 [HttpClient] X-Robots-Tag: none
2017-11-22 11:09:36 433 [HttpClient] X-Download-Options: noopen
2017-11-22 11:09:36 433 [HttpClient] X-Permitted-Cross-Domain-Policies: none
2017-11-22 11:09:36 433 [HttpClient] Content-Length: 0
2017-11-22 11:09:36 433 [HttpClient] Keep-Alive: timeout=5, max=96
2017-11-22 11:09:36 433 [HttpClient] Connection: Keep-Alive
2017-11-22 11:09:36 433 [HttpClient] Content-Type: text/html; charset=UTF-8
2017-11-22 11:09:36 433 [HttpClient] <-- END HTTP (0-byte body)
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] PROPFIND/OPTIONS on user-given URL failed
EXCEPTION at.bitfire.dav4android.exception.HttpException: 405 Method Not Allowed
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:331)
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:295)
at at.bitfire.dav4android.DavResource.propfind(DavResource.kt:271)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.checkUserGivenURL(DavResourceFinder.kt:174)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:101)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:74)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:131)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:112)
at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:312)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:69)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:66)
at android.os.AsyncTask$2.call(AsyncTask.java:305)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
at java.lang.Thread.run(Thread.java:761)

2017-11-22 11:09:36 433 [HttpClient] --> PROPFIND https://SERVER.de/.well-known/caldav
2017-11-22 11:09:36 433 [HttpClient] Content-Type: application/xml; charset=utf-8
2017-11-22 11:09:36 433 [HttpClient] Content-Length: 198
2017-11-22 11:09:36 433 [HttpClient] Depth: 0
2017-11-22 11:09:36 433 [HttpClient]
2017-11-22 11:09:36 433 [HttpClient] <?xml version='1.0' encoding='UTF-8' ?>
2017-11-22 11:09:36 433 [HttpClient] --> END PROPFIND (198-byte body)
2017-11-22 11:09:36 433 [HttpClient] <-- 403 Forbidden https://SERVER.de/.well-known/caldav (59ms)
2017-11-22 11:09:36 433 [HttpClient] Date: Wed, 22 Nov 2017 10:09:38 GMT
2017-11-22 11:09:36 433 [HttpClient] Server: Apache
2017-11-22 11:09:36 433 [HttpClient] Strict-Transport-Security: max-age=15552000
2017-11-22 11:09:36 433 [HttpClient] Content-Length: 227
2017-11-22 11:09:36 433 [HttpClient] Keep-Alive: timeout=5, max=95
2017-11-22 11:09:36 433 [HttpClient] Connection: Keep-Alive
2017-11-22 11:09:36 433 [HttpClient] Content-Type: text/html; charset=iso-8859-1
2017-11-22 11:09:36 433 [HttpClient]
2017-11-22 11:09:36 433 [HttpClient]

403 Forbidden

Forbidden

You don't have permission to access /.well-known/caldav on this server.

2017-11-22 11:09:36 433 [HttpClient] <-- END HTTP (227-byte body)
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] Well-known URL detection failed
EXCEPTION at.bitfire.dav4android.exception.HttpException: 403 Forbidden
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:331)
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:295)
at at.bitfire.dav4android.DavResource.propfind(DavResource.kt:271)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.getCurrentUserPrincipal(DavResourceFinder.kt:352)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:105)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:74)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:131)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:112)
at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:312)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:69)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:66)
at android.os.AsyncTask$2.call(AsyncTask.java:305)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
at java.lang.Thread.run(Thread.java:761)

2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] No principal found at user-given URL, trying to discover
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] Looking up SRV records for _caldavs._tcp.SERVER.de
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] Didn’t find caldav service, trying at https://SERVER.de:443
2017-11-22 11:09:36 433 [ui.setup.DavResourceFinder] Trying to determine principal from initial context path=https://SERVER.de/.well-known/caldav
2017-11-22 11:09:36 433 [HttpClient] --> PROPFIND https://SERVER.de/.well-known/caldav
2017-11-22 11:09:36 433 [HttpClient] Content-Type: application/xml; charset=utf-8
2017-11-22 11:09:36 433 [HttpClient] Content-Length: 198
2017-11-22 11:09:36 433 [HttpClient] Depth: 0
2017-11-22 11:09:36 433 [HttpClient]
2017-11-22 11:09:36 433 [HttpClient] <?xml version='1.0' encoding='UTF-8' ?>
2017-11-22 11:09:36 433 [HttpClient] --> END PROPFIND (198-byte body)
2017-11-22 11:09:37 433 [HttpClient] <-- 403 Forbidden https://SERVER.de/.well-known/caldav (75ms)
2017-11-22 11:09:37 433 [HttpClient] Date: Wed, 22 Nov 2017 10:09:38 GMT
2017-11-22 11:09:37 433 [HttpClient] Server: Apache
2017-11-22 11:09:37 433 [HttpClient] Strict-Transport-Security: max-age=15552000
2017-11-22 11:09:37 433 [HttpClient] Content-Length: 227
2017-11-22 11:09:37 433 [HttpClient] Keep-Alive: timeout=5, max=94
2017-11-22 11:09:37 433 [HttpClient] Connection: Keep-Alive
2017-11-22 11:09:37 433 [HttpClient] Content-Type: text/html; charset=iso-8859-1
2017-11-22 11:09:37 433 [HttpClient]
2017-11-22 11:09:37 433 [HttpClient]

403 Forbidden

Forbidden

You don't have permission to access /.well-known/caldav on this server.

2017-11-22 11:09:37 433 [HttpClient] <-- END HTTP (227-byte body)
2017-11-22 11:09:37 433 [ui.setup.DavResourceFinder] No resource found
EXCEPTION at.bitfire.dav4android.exception.HttpException: 403 Forbidden
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:331)
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:295)
at at.bitfire.dav4android.DavResource.propfind(DavResource.kt:271)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.getCurrentUserPrincipal(DavResourceFinder.kt:352)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.discoverPrincipalUrl(DavResourceFinder.kt:334)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:123)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:74)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:131)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:112)
at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:312)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:69)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:66)
at android.os.AsyncTask$2.call(AsyncTask.java:305)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
at java.lang.Thread.run(Thread.java:761)

2017-11-22 11:09:37 433 [ui.setup.DavResourceFinder] Trying to determine principal from initial context path=https://SERVER.de/
2017-11-22 11:09:37 433 [HttpClient] --> PROPFIND https://SERVER.de/
2017-11-22 11:09:37 433 [HttpClient] Content-Type: application/xml; charset=utf-8
2017-11-22 11:09:37 433 [HttpClient] Content-Length: 198
2017-11-22 11:09:37 433 [HttpClient] Depth: 0
2017-11-22 11:09:37 433 [HttpClient]
2017-11-22 11:09:37 433 [HttpClient] <?xml version='1.0' encoding='UTF-8' ?>
2017-11-22 11:09:37 433 [HttpClient] --> END PROPFIND (198-byte body)
2017-11-22 11:09:37 433 [HttpClient] <-- 403 Forbidden https://SERVER.de/ (52ms)
2017-11-22 11:09:37 433 [HttpClient] Date: Wed, 22 Nov 2017 10:09:38 GMT
2017-11-22 11:09:37 433 [HttpClient] Server: Apache
2017-11-22 11:09:37 433 [HttpClient] Strict-Transport-Security: max-age=15552000
2017-11-22 11:09:37 433 [HttpClient] Content-Length: 209
2017-11-22 11:09:37 433 [HttpClient] Keep-Alive: timeout=5, max=93
2017-11-22 11:09:37 433 [HttpClient] Connection: Keep-Alive
2017-11-22 11:09:37 433 [HttpClient] Content-Type: text/html; charset=iso-8859-1
2017-11-22 11:09:37 433 [HttpClient]
2017-11-22 11:09:37 433 [HttpClient]

403 Forbidden

Forbidden

You don't have permission to access / on this server.

2017-11-22 11:09:37 433 [HttpClient] <-- END HTTP (209-byte body)
2017-11-22 11:09:37 433 [ui.setup.DavResourceFinder] No resource found
EXCEPTION at.bitfire.dav4android.exception.HttpException: 403 Forbidden
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:331)
at at.bitfire.dav4android.DavResource.checkStatus(DavResource.kt:295)
at at.bitfire.dav4android.DavResource.propfind(DavResource.kt:271)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.getCurrentUserPrincipal(DavResourceFinder.kt:352)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.discoverPrincipalUrl(DavResourceFinder.kt:334)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:123)
at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:74)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:131)
at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$ServerConfigurationLoader.loadInBackground(DetectConfigurationFragment.kt:112)
at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:312)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:69)
at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:66)
at android.os.AsyncTask$2.call(AsyncTask.java:305)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
at java.lang.Thread.run(Thread.java:761)

SOFTWARE INFORMATION
Package: at.bitfire.davdroid
Version: 1.9.3-gplay (189) from 12.11.2017
Installed from: com.android.vending
JB Workaround installed: no

CONNECTIVITY (at the moment)
Active connection: WiFi, CONNECTED

CONFIGURATION
Power saving disabled: no
android.permission.READ_CONTACTS permission: denied
android.permission.WRITE_CONTACTS permission: denied
android.permission.READ_CALENDAR permission: denied
android.permission.WRITE_CALENDAR permission: denied
org.dmfs.permission.READ_TASKS permission: denied
org.dmfs.permission.WRITE_TASKS permission: denied
System-wide synchronization: automatically

SQLITE DUMP
android_metadata
| locale |
| de_DE |

services
| _id | accountName | service | principal |

sqlite_sequence
| name | seq |

homesets
| _id | serviceID | url |

collections
| _id | serviceID | type | url | readOnly | displayName | description | color | timezone | supportsVEVENT | supportsVTODO | source | sync |

SYSTEM INFORMATION
Android version: 7.1.2 (lineage_hammerhead-userdebug 7.1.2 NJH47F 77433d9635)
Device: LGE Nexus 5 (hammerhead)

— END DEBUG INFO —

[D4rkPh0en1x]

I join this discussion too as I have this problem too. I’m getting the same error but I use Apache.
I have my Huawei P9 working fine and my iPAD too but both are configured since a long time. I wanted now my Nvidia Shield to work too but getting the same error as mentioned above…
I also see that the login over the browser takes very long compared to a month ago…
The nextcloud app on all devices in itself works fine by the way…
Any help wou be appreciated