Can't enter URL in NextCloud settings (cURL error 3)
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I have OnlyOffice running in a docker, with the NextCloud app. It was working well until around NextCloud 18.0.2 and then suddenly it stopped working (my only time reference is around a NextCloud release, I'm not saying it's related).
At some point it stopped being able to open documents. It would display an error on screen saying "office.domain.uk%C%20%office.domain.uk cannot get server IP address".
I wiped the docker container and re-pulled it, completely fresh install, and then uninstalled and re-installed the NextCloud app. However, once I did this I found I could no longer enter a URL for the server in the OnlyOffice NextCloud settings and received the error this issue ticket relates to.
It was working fine and I assume there has been an update at some point that broke things. Maybe OnlyOffice, maybe NextCloud.
Any help appreciated. I would love to give more detail but I don't know where to start.
Steps to reproduce
Go to NextCloud OnlyOffice settings and attempt to enter a url: https://cloud.domain.uk
Error displayed: Error when trying to connect (cURL error 3: (see http://curl.haxx.se/libcurl/c/libcurl-errors.html))
Error logged: "GuzzleHttp\Exception\RequestException: cURL error 3: (see http://curl.haxx.se/libcurl/c/libcurl-errors.html)"
Expected behaviour
URL should be accepted.
Actual behaviour
URL is rejected.
Server configuration detail
Operating system: Linux 4.19.0-9-amd64 #1 SMP Debian 4.19.118-2 (2020-04-29) x86_64
Webserver: Apache/2.4.38 (Debian) (apache2handler)
Database: mysql 10.3.22
PHP version:
7.3.14-1~deb10u1
Modules loaded: Core, date, libxml, openssl, pcre, zlib, filter, hash, Reflection, SPL, session, sodium, standard, apache2handler, mysqlnd, PDO, xml, apcu, bz2, calendar, ctype, curl, dom, mbstring, fileinfo, ftp, gd, gettext, iconv, imagick, intl, json, exif, mysqli, pdo_mysql, pdo_sqlite, apc, posix, readline, shmop, SimpleXML, sockets, sqlite3, sysvmsg, sysvsem, sysvshm, tokenizer, wddx, xmlreader, xmlwriter, xsl, zip, Phar, Zend OPcache
Nextcloud version: 18.0.5 - 18.0.5.1
Updated from an older Nextcloud/ownCloud or fresh install:
Where did you install Nextcloud from: unknown
Signing status
Array
(
)
List of activated apps
Enabled:
- accessibility: 1.4.0
- activity: 2.11.0
- apporder: 0.10.0
- breezedark: 18.0.18
- bruteforcesettings: 1.6.0
- camerarawpreviews: 0.7.3
- cloud_federation_api: 1.1.0
- comments: 1.8.0
- dav: 1.14.0
- deck: 1.0.2
- drawio: 0.9.5
- emlviewer: 0.0.12
- extract: 1.2.4
- federatedfilesharing: 1.8.0
- files: 1.13.1
- files_external: 1.9.0
- files_pdfviewer: 1.7.0
- files_rightclick: 0.15.2
- files_sharing: 1.10.1
- files_trashbin: 1.8.0
- files_videoplayer: 1.7.0
- firstrunwizard: 2.7.0
- issuetemplate: 0.6.0
- jsloader: 1.0.2
- logreader: 2.3.0
- lookup_server_connector: 1.6.0
- metadata: 0.11.1
- nextcloud_announcements: 1.7.0
- notifications: 2.6.0
- oauth2: 1.6.0
- ocr: 6.0.42
- onlyoffice: 4.2.0
- password_policy: 1.8.0
- previewgenerator: 2.3.0
- provisioning_api: 1.8.0
- settings: 1.0.0
- sharebymail: 1.8.0
- suspicious_login: 3.1.0
- text: 2.0.0
- theming: 1.9.0
- theming_customcss: 1.6.0
- twofactor_backupcodes: 1.7.0
- updatenotification: 1.8.0
- uploaddetails: 0.1.3
- video_converter: 0.1.4
- viewer: 1.2.0
- workflowengine: 2.0.0
Disabled:
- admin_audit
- encryption
- federation
- files_versions
- photos
- privacy
- recommendations
- serverinfo
- support
- survey_client
- systemtags
- user_ldap
Configuration (config/config.php)
{
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"***REMOVED SENSITIVE VALUE***",
"***REMOVED SENSITIVE VALUE***"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "18.0.5.1",
"overwrite.cli.url": "***REMOVED SENSITIVE VALUE***",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"maintenance": false,
"theme": "",
"loglevel": 2,
"mail_smtpmode": "smtp",
"mail_smtpsecure": "ssl",
"mail_sendmailmode": "smtp",
"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***",
"memcache.local": "\\OC\\Memcache\\APCu",
"preview_max_x": "2048",
"preview_max_y": "2048",
"jpeg_quality": "60",
"updater.release.channel": "stable",
"app_install_overwrite": [
"jsloader",
"bruteforcesettings",
"ocr",
"uploaddetails",
"breezedark"
]
}
Are you using external storage, if yes which one: local/smb/sftp/...
Are you using encryption:
Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...
Client configuration
Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Operating system: Windows 10
Logs
Web server error log
Nextcloud log
Browser log
Do you include the protocol in the address?
I get the same issue when trying to set up Onlyoffice with Nextcloud 19.0.1. On the Onlyoffice side, I am using the docker-compose.yml from ONLYOFFICE/Docker-DocumentServer behind a reverse proxy and my Nextcloud is running on the same host.
Onlyoffice seems to work, at least in principle and from the network perspective: If I open it in my browser or curl it directly from the host where it is running, I get a redirect to /welcome and a message that the server is running. If I now try entering the server's URL into the Nextcloud settings, I get the same curl error as @a1pilot above.
Not including the protoco will cause Nextcloud to automatially prepend the hostname with "http://". Using that on a Nextcloud served via HTTPS will not produce the curl error 3 but will instead complain about mixed content being not allowed.
When I look at the traffic between Nextcloud and Onlyoffice, Nextcloud calls /healthcheck, /coauthoring/CommanService.ashx and /ConvertService.ashx, each returning a code 200. However, the last request returns an XML with a URL. When I try to open that manually, it returns an error 403. But I have no idea if that might be expected here.
I have attached the Nextcloud debug log from the moment when clicking on the save button to configure the Onlyoffice URL: nextcloud.log. I also had a look at the logs of the document server but did not find anything useful there.
Let me know if you need anything else.