WEB DAV Write Access broken from Nextcloud 14.0.3 to 15.0.0

[tstreibl]

After updating from nextcloud 14.03 to nextcloud 15 programtically copying a file from a windows pc to nextcloud fails. The other direction is still fine. Acces is made throug "net use" (without connecting a drive) using webdav access. The testcode is a three liner in python. Log Entries from nextcloud are included in the attached file. I can reproduce that this code works under nextcloud 14.03 and that it fails under nextcloud 15 (both tested today).

error_case.zip

[dishu2511]

We are having the same issue, I did a fresh install of V15.02. It works perfectly fine from the web console i.e. I can add/delete/edit/create files inside External Storage drive. But from Webdav we cannot create new files in the External Storage Drives. It seems to be an issue with only External Storage, as I can create the files on the root of the webdav.
BTW we also have V13 of nextcloud (with exactly the same setup), and webdav works perfectly fine on that.

[tstreibl]

Hello dishu2511,
in my case I don't have my data on an external storage and it makes no difference if I want to uploade a file to a root or a subdirectory. I can only reproduce that the code works in 14.03 and fails in nextcloud 15. Related issue in the community coud be https://help.nextcloud.com/t/solved-create-files-on-webdav-with-ad-integration-and-externeal-storage/45205. At least I get the same log entry"Error: feof(): supplied resource is not a valid stream resource". It's marked as solved there with the solution to downgrade to nc14 - must be a joke?

[dishu2511]

Hi tstreibl,
Thanks for the quick response, I read somewhere that it will get fixed in 15.03 which is getting released on 21/02/2019, but not sure how valid is this argument. :).

[kesselb]

Hey @tstreibl, thank you for reporting this issue 👍

Please help us and fill out the issue template.

[tstreibl]

did my best:

Steps to reproduce

1. run python example program (establish webdav connection through "net use"; copy file from pc to nextcloud 15=> fail; copy file from nextcloud to pc=> success)

Expected behaviour

copy action should be sucessful which is the case when you run the same example program on a nc 14.

Actual behaviour

python/windows error: copy error: [Errno 13] Permission denied; error in nextcloud log
copy action fails (no file in nc)

Server configuration

I only have access to the nc 15.0.2 and nc 15.0.0 server configuration (raspberry pi) and not to the 14.0.3 server (it's another professionally hosted machine); however I had no problem on the pi before updating to nc 15.

Operating system: Linux raspberrypi 4.14.79-v7

Web server:
Server version: Apache/2.4.25 (Raspbian)
Server built: 2018-11-03T18:46:19

Database: mysql

PHP version: PHP 7.0.33-0+deb9u1 (cli) (built: Dec 7 2018 11:36:49) ( NTS )

Nextcloud version:
fails with 15.0.2 and 15.0.0; works sucessfully with 14.0.3
configuration is given for nc 15.0.2

Updated from an older Nextcloud/ownCloud or fresh install:
the nc 15 versions are updated versions from nc 14. with nc 14 webdav worked properly on the raspberrypi as well

Where did you install Nextcloud from:
from nc homepage

Signing status:

Signing status

don't know what a signing status is;
http://example.com/index.php/settings/integrity/failed  shows:
"No errors have been found."

List of activated apps:

List of activated apps:

Enabled:
  - accessibility: 1.1.0
  - activity: 2.8.2
  - admin_audit: 1.5.0
  - announcementcenter: 3.4.1
  - bruteforcesettings: 1.3.0
  - calendar: 1.6.4
  - checksum: 0.4.2
  - cloud_federation_api: 0.1.0
  - comments: 1.5.0
  - contacts: 3.0.2
  - dashboard: 6.0.0
  - dav: 1.8.1
  - deck: 0.5.2
  - encryption: 2.3.0
  - federatedfilesharing: 1.5.0
  - federation: 1.5.0
  - files: 1.10.0
  - files_accesscontrol: 1.5.0
  - files_automatedtagging: 1.5.0
  - files_downloadactivity: 1.4.0
  - files_external: 1.6.0
  - files_linkeditor: 1.0.9
  - files_pdfviewer: 1.4.0
  - files_sharing: 1.7.0
  - files_texteditor: 2.7.0
  - files_trashbin: 1.5.0
  - files_versions: 1.8.0
  - files_videoplayer: 1.4.0
  - firstrunwizard: 2.4.0
  - gallery: 18.2.0
  - gpxedit: 0.0.10
  - gpxmotion: 0.0.8
  - gpxpod: 3.0.1
  - groupfolders: 2.0.2
  - logreader: 2.0.0
  - lookup_server_connector: 1.3.0
  - mail: 0.11.0
  - metadata: 0.8.0
  - nextcloud_announcements: 1.4.0
  - notifications: 2.3.0
  - oauth2: 1.3.0
  - password_policy: 1.5.0
  - polls: 0.9.5
  - provisioning_api: 1.5.0
  - radio: 0.6.4
  - serverinfo: 1.5.0
  - sharebymail: 1.5.0
  - spreed: 5.0.0
  - support: 1.0.0
  - survey_client: 1.3.0
  - systemtags: 1.5.0
  - tasks: 0.9.8
  - theming: 1.6.0
  - twofactor_backupcodes: 1.4.1
  - unsplash: 1.1.3
  - updatenotification: 1.5.0
  - user_usage_report: 1.1.1
  - w2g2: 2.2.4
  - workflowengine: 1.5.0
Disabled:
  - circles
  - files_trackdownloads
  - mindmaps
  - orcid
  - quicknotes
  - user_ldap

Nextcloud configuration:

Nextcloud Configuration

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "example.de"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "overwrite.cli.url": "https:\/\/example.de\/nextcloud",
        "dbtype": "mysql",
        "version": "15.0.2.0",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "logtimezone": "UTC",
        "memcache.local": "\\OC\\Memcache\\APCu",
        "installed": true,
        "updater.release.channel": "stable",
        "maintenance": false,
        "theme": "",
        "loglevel": 2,
        "mail_smtpmode": "smtp",
        "mail_smtpsecure": "ssl",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauthtype": "LOGIN",
        "mail_smtpauth": 1,
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "465",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "updater.secret": "***REMOVED SENSITIVE VALUE***"
    }
}

Are you using external storage, if yes which one: local/smb/sftp/...
Issue Template:

no

Are you using encryption: yes

Are you using an external user-backend, if yes which one: Webdav backend (see python example program)

Client configuration

Python 3.7.1 (winpython edition)

Operating system:
Windows 10 Home Edition Version 1803

Logs

Web server error log

Web server error log

[Sat Jan 26 14:21:44.040421 2019] [authz_core:error] [pid 4351] [client 46.128.135.144:63896] AH01630: client denied by server configuration: /var/www/nextcloud/config

Nextcloud log (data/nextcloud.log)

Nextcloud log

{"reqId":"8s1TcNnbabNj8EPliBly","level":3,"time":"2019-01-26T15:38:35+00:00","remoteAddr":"46.128.135.144","user":"tstreibl","app":"PHP","method":"PUT","url":"\/nextcloud\/remote.php\/webdav\/test\/test_server_copy.txt","message":"feof(): supplied resource is not a valid stream resource at \/var\/www\/nextcloud\/apps\/dav\/lib\/Connector\/Sabre\/File.php#172","userAgent":"Microsoft-WebDAV-MiniRedir\/10.0.17134","version":"15.0.2.0"}
{"reqId":"8s1TcNnbabNj8EPliBly","level":3,"time":"2019-01-26T15:38:35+00:00","remoteAddr":"46.128.135.144","user":"tstreibl","app":"no app in context","method":"PUT","url":"\/nextcloud\/remote.php\/webdav\/test\/test_server_copy.txt","message":{"Exception":"Sabre\\DAV\\Exception","Message":"Error while copying file to target location (copied bytes: 0, expected filesize: 0 )","Code":0,"Trace":[{"file":"\/var\/www\/nextcloud\/apps\/dav\/lib\/Connector\/Sabre\/Directory.php","line":156,"function":"put","class":"OCA\\DAV\\Connector\\Sabre\\File","type":"->","args":[null]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/Server.php","line":1096,"function":"createFile","class":"OCA\\DAV\\Connector\\Sabre\\Directory","type":"->","args":["test_server_copy.txt",null]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/CorePlugin.php","line":525,"function":"createFile","class":"Sabre\\DAV\\Server","type":"->","args":["test\/test_server_copy.txt",null,null]},{"function":"httpPut","class":"Sabre\\DAV\\CorePlugin","type":"->","args":[{"absoluteUrl":"https:\/\/tilostreibl.de\/nextcloud\/remote.php\/webdav\/test\/test_server_copy.txt","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/event\/lib\/EventEmitterTrait.php","line":105,"function":"call_user_func_array","args":[[{"__class__":"Sabre\\DAV\\CorePlugin"},"httpPut"],[{"absoluteUrl":"https:\/\/tilostreibl.de\/nextcloud\/remote.php\/webdav\/test\/test_server_copy.txt","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/Server.php","line":479,"function":"emit","class":"Sabre\\Event\\EventEmitter","type":"->","args":["method:PUT",[{"absoluteUrl":"https:\/\/tilostreibl.de\/nextcloud\/remote.php\/webdav\/test\/test_server_copy.txt","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/Server.php","line":254,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->","args":[{"absoluteUrl":"https:\/\/tilostreibl.de\/nextcloud\/remote.php\/webdav\/test\/test_server_copy.txt","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]},{"file":"\/var\/www\/nextcloud\/apps\/dav\/appinfo\/v1\/webdav.php","line":80,"function":"exec","class":"Sabre\\DAV\\Server","type":"->","args":[]},{"file":"\/var\/www\/nextcloud\/remote.php","line":163,"args":["\/var\/www\/nextcloud\/apps\/dav\/appinfo\/v1\/webdav.php"],"function":"require_once"}],"File":"\/var\/www\/nextcloud\/apps\/dav\/lib\/Connector\/Sabre\/File.php","Line":191,"CustomMessage":"--"},"userAgent":"Microsoft-WebDAV-MiniRedir\/10.0.17134","version":"15.0.2.0"}
{"reqId":"8s1TcNnbabNj8EPliBly","level":4,"time":"2019-01-26T15:38:35+00:00","remoteAddr":"46.128.135.144","user":"tstreibl","app":"webdav","method":"PUT","url":"\/nextcloud\/remote.php\/webdav\/test\/test_server_copy.txt","message":{"Exception":"Sabre\\DAV\\Exception","Message":"Error while copying file to target location (copied bytes: 0, expected filesize: 0 )","Code":0,"Trace":[{"file":"\/var\/www\/nextcloud\/apps\/dav\/lib\/Connector\/Sabre\/Directory.php","line":156,"function":"put","class":"OCA\\DAV\\Connector\\Sabre\\File","type":"->","args":[null]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/Server.php","line":1096,"function":"createFile","class":"OCA\\DAV\\Connector\\Sabre\\Directory","type":"->","args":["test_server_copy.txt",null]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/CorePlugin.php","line":525,"function":"createFile","class":"Sabre\\DAV\\Server","type":"->","args":["test\/test_server_copy.txt",null,null]},{"function":"httpPut","class":"Sabre\\DAV\\CorePlugin","type":"->","args":[{"absoluteUrl":"https:\/\/tilostreibl.de\/nextcloud\/remote.php\/webdav\/test\/test_server_copy.txt","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/event\/lib\/EventEmitterTrait.php","line":105,"function":"call_user_func_array","args":[[{"__class__":"Sabre\\DAV\\CorePlugin"},"httpPut"],[{"absoluteUrl":"https:\/\/tilostreibl.de\/nextcloud\/remote.php\/webdav\/test\/test_server_copy.txt","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/Server.php","line":479,"function":"emit","class":"Sabre\\Event\\EventEmitter","type":"->","args":["method:PUT",[{"absoluteUrl":"https:\/\/tilostreibl.de\/nextcloud\/remote.php\/webdav\/test\/test_server_copy.txt","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]]},{"file":"\/var\/www\/nextcloud\/3rdparty\/sabre\/dav\/lib\/DAV\/Server.php","line":254,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->","args":[{"absoluteUrl":"https:\/\/tilostreibl.de\/nextcloud\/remote.php\/webdav\/test\/test_server_copy.txt","__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]},{"file":"\/var\/www\/nextcloud\/apps\/dav\/appinfo\/v1\/webdav.php","line":80,"function":"exec","class":"Sabre\\DAV\\Server","type":"->","args":[]},{"file":"\/var\/www\/nextcloud\/remote.php","line":163,"args":["\/var\/www\/nextcloud\/apps\/dav\/appinfo\/v1\/webdav.php"],"function":"require_once"}],"File":"\/var\/www\/nextcloud\/apps\/dav\/lib\/Connector\/Sabre\/File.php","Line":191,"CustomMessage":"--"},"userAgent":"Microsoft-WebDAV-MiniRedir\/10.0.17134","version":"15.0.2.0"}
{"reqId":"Vq7W8yE8TPyvkq5FTXHp","level":3,"time":"2019-01-26T16:05:02+00:00","remoteAddr":"46.128.135.144","user":"--","app":"index","method":"GET","url":"\/favicon.ico","message":{"Exception":"Exception","Message":"The requested uri(\/favicon.ico) cannot be processed by the script '\/nextcloud\/index.php')","Code":0,"Trace":[{"file":"\/var\/www\/nextcloud\/lib\/base.php","line":930,"function":"getRawPathInfo","class":"OC\\AppFramework\\Http\\Request","type":"->","args":[]},{"file":"\/var\/www\/nextcloud\/index.php","line":42,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"\/var\/www\/nextcloud\/lib\/private\/AppFramework\/Http\/Request.php","Line":784,"CustomMessage":"--"},"userAgent":"Mozilla\/5.0 (Windows NT 10.0; Win64; x64; rv:64.0) Gecko\/20100101 Firefox\/64.0","version":"15.0.2.0"}

[tstreibl]

additional tests:

1. attached nextcloud as a network drive. Same behavior: download ok; deleting ok; copy folders within cloud ok; upload fails with "die Quelldatei oder vom Quelldatenträger kann nicht gelesen werden" (see picture)
   

Nextcloud shows the following log entries for uploading a non empty (filesize>0) text file :

[jsresourceloader] Error: Could not find resource vendor/strengthify/jquery.strengthify.min.js to load

GET /nextcloud/index.php/settings/user/security
from 46.128.135.144 by tstreibl at 2019-01-30T22:36:26+00:00

[webdav] Fatal: Sabre\DAV\Exception: Error while copying file to target location (copied bytes: 0, expected filesize: 0 ) at <>

0. /var/www/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php line 156
   put(null)
1. /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 1096
   createFile("testfile.txt", null)
2. /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php line 525
   createFile("blub/testfile.txt", null, null)
3. <>
   httpPut(Sabre\HTTP\Reque ... "}, Sabre\HTTP\Response {})
4. /var/www/nextcloud/3rdparty/sabre/event/lib/EventEmitterTrait.php line 105
   call_user_func_array([Sabre\DAV\CorePlugin {},"httpPut"], [Sabre\HTTP\Requ ... }])
5. /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 479
   emit("method:PUT", [Sabre\HTTP\Requ ... }])
6. /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 254
   invokeMethod(Sabre\HTTP\Reque ... "}, Sabre\HTTP\Response {})
7. /var/www/nextcloud/apps/dav/appinfo/v1/webdav.php line 80
   exec()
8. /var/www/nextcloud/remote.php line 163
   require_once("/var/www/nextcl ... p")

PUT /nextcloud/remote.php/webdav/blub/testfile.txt
from 46.128.135.144 by tstreibl at 2019-01-30T22:33:31+00:00

2. updated from php 7.0 to php 7.3 (found 3 year old issue where webdav made problems with php<=7.03 on nginx system: PHP7 ownCloud WebDAV not working owncloud/core#21935 ). Nothing changed as expected since I have no ngnix

3. I ran the pc desctop client in latest version. Works like a charm (upload, download, delete all ok). Only after the pc recovers from sleep mode the client gets stuck with a red cross symbol saying "Beim öffnen eines Ordners ist ein Fehler aufgetreten. Der Zugriff auf das Netzwerk ist nicht gestattet. Nextcloud. jetzt". Closing the client and restarting the client makes everything work again. can reproduce this behavior.

no more ideas...

[IngoEF]

Hi,

same issue here with a fresh installed Nextcloud 15.02.
We are using a Windows Server 2016 share as external drive.
Working from WebGUI does all: create file, create folder, delete both, edit file and store and so on.
When mounting the WebDAV share from a Windows 10 Explorer, we can create folders, but there is no chance to create or copy files.
Create a file is denied with this message:

Copying a file shows the same error as already sent in the comment above.
Errors in the nextcloud log file begin with:
{"reqId":"XFoFbhJiicO8l36OHtTI-gAAAAw","level":3,"time":"2019-02-05T21:51:42+00:00","remoteAddr":"xx.xx.xx.xx","user":"FA83AB3D-A4A1-481E-B86F-3245BE0DF1C8","app":"PHP","method":"PUT","url":"/remote.php/webdav/Energy-Daten/05_Temps/Test/nochntest/MountMerkur.bat","message":"feof(): supplied resource is not a valid stream resource at /var/www/html/nextcloud/apps/dav/lib/Connector/Sabre/File.php#172","userAgent":"Microsoft-WebDAV-MiniRedir/10.0.10240","version":"15.0.2.0"}

Any ideas?

[SDWWHV]

same issue here with a nextcloud environment for 3000+ users

nextcloud 15.0.2
windows server 2016 as external storage
ldap windows active directory user integration

[kesselb]

#13468 could work for you. Will be released with Nextcloud 15.0.3 (2019-02-21).

[SDWWHV]

"could" is a weak statement.
is there a way to verify this?

[kesselb]

"could" is a weak statement.

#13596 and #13276 reporting the same error. I think there is a good chance. Usually the information from the issue template makes it easier to help.

is there a way to verify this?

https://patch-diff.githubusercontent.com/raw/nextcloud/server/pull/13468.patch try it ;-) dont forget a backup as always.