Reshare a calendar

[fischerscode]

Steps to reproduce

1. create a calendar
2. share the calendar to user2 and give him write permissions
3. try to share the calendar as user2 to an other user

Expected behaviour

As user2 is allowed to create a shared link (works like a charm) and user2 is able to enter an username, user2 should be able to share this calendar to an other user.

Actual behaviour

After entering the username/clicking on the preview, no user gets added.
(It's not a visual thing, as the "other user" can't access the calendar.)

Calendar app

Calendar app version: 2.0.2

CalDAV-clients used: Used the included webapp.

Client configuration

Browser: Firefox 74.0

Operating system: MacOS Mojave

Server configuration

Operating system: Ubuntu 18.04

Web server: Apache

Database: MariaDB

PHP version: 7.2

Nextcloud Version: 18.0.2

Updated from an older installed version or fresh install: fresh

List of activated apps:

  - accessibility: 1.4.0
  - bruteforcesettings: 1.5.0
  - calendar: 2.0.2
  - cloud_federation_api: 1.1.0
  - comments: 1.8.0
  - contacts: 3.2.0
  - dav: 1.14.0
  - documentserver_community: 0.1.5
  - external: 3.5.0
  - extract: 1.2.3
  - federatedfilesharing: 1.8.0
  - files: 1.13.1
  - files_external: 1.9.0
  - files_frommail: 0.4.0
  - files_pdfviewer: 1.7.0
  - files_rightclick: 0.15.2
  - files_sharing: 1.10.1
  - files_trashbin: 1.8.0
  - files_versions: 1.11.0
  - files_videoplayer: 1.7.0
  - forms: 1.1.1
  - groupfolders: 6.0.2
  - logreader: 2.3.0
  - lookup_server_connector: 1.6.0
  - mail: 1.1.3
  - notifications: 2.6.0
  - oauth2: 1.6.0
  - onlyoffice: 4.1.4
  - password_policy: 1.8.0
  - provisioning_api: 1.8.0
  - quota_warning: 1.7.0
  - rainloop: 6.1.0
  - serverinfo: 1.8.0
  - settings: 1.0.0
  - sharebymail: 1.8.0
  - spreed: 8.0.5
  - support: 1.1.0
  - systemtags: 1.8.0
  - talk_simple_poll: 1.1.0
  - text: 2.0.0
  - theming: 1.9.0
  - twofactor_backupcodes: 1.7.0
  - updatenotification: 1.8.0
  - video_converter: 0.1.3
  - viewer: 1.2.0
  - workflowengine: 2.0.0

Nextcloud configuration:

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "_____________________________________",
            "_____________________________________"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "18.0.2.2",
        "overwrite.cli.url": "_____________________________________",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "mail_smtpmode": "smtp",
        "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": "25",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "default_language": "de",
        "default_locale": "de",
        "maintenance": false,
        "mysql.utf8mb4": true,
        "memcache.local": "\\OC\\Memcache\\APCu"
    }
}

Logs

Web server error log (e.g. /var/log/apache)

nothing calendar related

Log file (data/nextcloud.log)

empty

Browser log

Console:

Error:                                       (calendar.js:2:1377388)

Network:
Request:

---

URL: https://**DOMAIN**/remote.php/dav/calendars/**user2**/**calendarName**_shared_by_**username**/
params: <x4:share xmlns:x4="http://owncloud.org/ns"><x4:set><x0:href xmlns:x0="DAV:">principal:principals/users/OTHERUSER</x0:href></x4:set></x4:share>

---

Response:

---

403

<?xml version="1.0" encoding="utf-8"?>
<d:error xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
  <s:exception>Sabre\DAV\Exception\Forbidden</s:exception>
  <s:message/>
</d:error>

---

[szaimen]

Is this Issue still valid? If not, please close this issue. Thanks! :)

[fischerscode]

@szaimen
I've just tested it with the nextcloud demo server and sharing a shared calendar did not work.
It seems like the share request returns 403.

[szaimen]

cc @nextcloud/calendar

[tcitworld]

This used to work. Need to evaluate if hiding the possibility in the calendar app is easier than fixing it for now.

Also part of #20096

[raimund-schluessler]

See also nextcloud/tasks#993

[ghost]

This issue has been automatically marked as stale because it has not had recent activity and seems to be missing some essential information. It will be closed if no further activity occurs. Thank you for your contributions.

[szaimen]

Hi, please update to 24.0.8 or better 25.0.2 and report back if it fixes the issue. Thank you!

[Input-BDF]

Running into this issue still on 25.0.4 and 26.0.0. So why is this closed?

Browser console gives an POST 403 (Forbidden) response and

Uncaught (in promise) Error
    at n.value.regeneratorRuntime.mark.regeneratorRuntime.wrap.e.abrupt.s.onreadystatechange (dist.js:1:121978)

after selecting a group or user.

Same behaviour like @fischerscode describes. Creating a public share by user 2 is allowed. Sharing with a group or other user is not possible via user2.

[ZID-TU-Graz-Collab]

we are also affected by this issue (NC 25.0.5)

[ZID-TU-Graz-Collab]

this issue also occurs on NC 26.0.4.

[ZID-TU-Graz-Collab]

this issue also occurs on NC 27.0.2.

[Input-BDF]

this issue also occurs on NC 28.0.1
meanwhile on Calendar 4.6.3

[gnrfzui]

using NC 27.1.5, the re-sharing option disappeared completely when updating Calendar 4.6.0 -> Calendar 4.6.6

This update also hides the "copy internal link" feature for shared calendars. The edit menu allows "export", which let's you download the .ics file. But hides the functionality to just copy the link to use with another client.

[Input-BDF]

Can confirm this on NC 28.0.3 with Calendar 4.6.6
Having the "Copy internal links" available is also essential in our use-cases.

[SebastianKrupinski]

Hi Everyone, After reviewing this request, the team has decided that calendar re-sharing will not be possible at this time, due to the overwhelming complexity this would create. Sorry.