Can't add WebCal calendar subscription

[ngasull]

Steps to reproduce

1. Access NextCloud with https
2. Go to calendar tab
3. Click "+ New Subscription"
4. Enter an https link to a webcal (tried Facebook events and a private Google calendar)
5. Confirm

Expected behaviour

The calendar subscription is successful

Actual behaviour

The following notification appears: "Severe error in webcal proxy. Please contact administrator for more information."

Server configuration detail

Operating system: Linux 4.15.0-43-generic #46-Ubuntu SMP Thu Dec 6 14:45:28 UTC 2018 x86_64

Webserver: Apache (fpm-fcgi)

Database: mysql 5.7.22

PHP version:

7.1.25
Modules loaded: Core, date, libxml, openssl, pcre, sqlite3, zlib, bz2, ctype, curl, dom, hash, fileinfo, filter, ftp, gd, SPL, iconv, intl, json, ldap, mbstring, mcrypt, pcntl, PDO, session, pdo_sqlite, posix, Reflection, standard, SimpleXML, mysqlnd, exif, tokenizer, xml, xmlreader, xmlwriter, zip, pdo_mysql, cgi-fcgi, redis, Zend OPcache

Nextcloud version: 13.0.8 - 13.0.8.2

Updated from an older Nextcloud/ownCloud or fresh install: fresh install

Where did you install Nextcloud from: snap

Signing status

Array
(
)

List of activated apps

Enabled:
 - activity: 2.6.1
 - calendar: 1.6.1
 - comments: 1.3.0
 - contacts: 2.1.5
 - dav: 1.4.7
 - federatedfilesharing: 1.3.1
 - federation: 1.3.0
 - files: 1.8.0
 - files_markdown: 2.0.5
 - files_pdfviewer: 1.2.1
 - files_sharing: 1.5.0
 - files_texteditor: 2.5.1
 - files_trashbin: 1.3.0
 - files_versions: 1.6.0
 - files_videoplayer: 1.2.0
 - firstrunwizard: 2.2.1
 - gallery: 18.0.0
 - issuetemplate: 0.4.0
 - logreader: 2.0.0
 - lookup_server_connector: 1.1.0
 - nextcloud_announcements: 1.2.0
 - notifications: 2.1.2
 - oauth2: 1.1.1
 - password_policy: 1.3.0
 - provisioning_api: 1.3.0
 - serverinfo: 1.3.0
 - sharebymail: 1.3.0
 - survey_client: 1.1.0
 - systemtags: 1.3.0
 - tasks: 0.9.8
 - theming: 1.4.5
 - twofactor_backupcodes: 1.2.3
 - workflowengine: 1.3.0
Disabled:
 - admin_audit
 - encryption
 - files_external
 - user_external
 - user_ldap

Configuration (config/config.php)

{
    "apps_paths": [
        {
            "path": "\/snap\/nextcloud\/current\/htdocs\/apps",
            "url": "\/apps",
            "writable": false
        },
        {
            "path": "\/var\/snap\/nextcloud\/current\/nextcloud\/extra-apps",
            "url": "\/extra-apps",
            "writable": true
        }
    ],
    "supportedDatabases": [
        "mysql"
    ],
    "memcache.locking": "\\OC\\Memcache\\Redis",
    "memcache.local": "\\OC\\Memcache\\Redis",
    "redis": {
        "host": "***REMOVED SENSITIVE VALUE***",
        "port": 0
    },
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "localhost",
        "cloud.gasull.net"
    ],
    "datadirectory": "***REMOVED SENSITIVE VALUE***",
    "overwrite.cli.url": "http:\/\/localhost",
    "dbtype": "mysql",
    "version": "13.0.8.2",
    "dbname": "***REMOVED SENSITIVE VALUE***",
    "dbhost": "***REMOVED SENSITIVE VALUE***",
    "dbport": "",
    "dbtableprefix": "oc_",
    "mysql.utf8mb4": true,
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "installed": true,
    "instanceid": "***REMOVED SENSITIVE VALUE***",
    "mail_domain": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpmode": "smtp",
    "mail_from_address": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpsecure": "ssl",
    "mail_smtpauthtype": "LOGIN",
    "mail_smtpauth": 1,
    "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpport": "465",
    "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
    "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
    "loglevel": 0
}

Are you using external storage, if yes which one: local

Are you using encryption: no

Are you using an external user-backend, if yes which one:

Client configuration

Browser: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/72.0.3626.28 Chrome/72.0.3626.28 Safari/537.36

Operating system: Ubuntu 18.04

Logs

Browser log

Console: (NB: all does happen before trying to add the calendar)

core.js?v=57f098ed-4:1563 Deprecation warning: use moment.updateLocale(localeName, config) to change an existing locale. moment.defineLocale(localeName, config) should only be used for creating a new locale See http://momentjs.com/guides/#/warnings/define-locale/ for more info.
w @ core.js?v=57f098ed-4:1563
vendor.js:23280 Attempting to call a FullCalendar method on an element with no calendar.
vendor.js:23280 Attempting to call a FullCalendar method on an element with no calendar.
vendor.js:23280 Attempting to call a FullCalendar method on an element with no calendar.
vendor.js:23280 Attempting to call a FullCalendar method on an element with no calendar.

Network: content is sensitive, but the request to the added actually succeeds, and I can see the text content of the calendar through the dev tools.

Nextcloud log

Empty, even in debug level

Browser log

Console: (NB: all does happen before trying to add the calendar)

core.js?v=57f098ed-4:1563 Deprecation warning: use moment.updateLocale(localeName, config) to change an existing locale. moment.defineLocale(localeName, config) should only be used for creating a new locale See http://momentjs.com/guides/#/warnings/define-locale/ for more info.
w @ core.js?v=57f098ed-4:1563
vendor.js:23280 Attempting to call a FullCalendar method on an element with no calendar.
vendor.js:23280 Attempting to call a FullCalendar method on an element with no calendar.
vendor.js:23280 Attempting to call a FullCalendar method on an element with no calendar.
vendor.js:23280 Attempting to call a FullCalendar method on an element with no calendar.

Network: content is sensitive, but the request to the added actually succeeds, and I can see the text content of the calendar through the dev tools.

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[georgehrke]

You provided the browser log twice, but you didn't provide the server's error log. Can you please check if there is anything in there?

[georgehrke]

Maybe some workarounds with the cert file from #250 will work for you

[no-response]

This issue has been automatically closed because there has been no response to our request for more information from the original author. With only the information that is currently in the issue, we don't have enough information to take action. Please reach out if you have or find the answers we need so that we can investigate further.